LEVER TYPE CONNECTOR

专利摘要:
It is desirable to limit a movement of a movable plate when a lever is turned, the two housings being separated. For this purpose, a lever 24 has a cam groove 28 (first passage) curved so as to approach an axis of rotation 13 of the lever 24 from an inlet 28E towards a rear face and cam projections 23 of a movable plate 18 are moved in order to approach the axis of rotation 13 of the lever 24 in the cam groove 28 during the operation of rotation of the lever 24 from an initial position to a position of connection while sliding in contact with a cam pin 41 of a female housing 40. The lever 24 has a release space 31 (second passage). During the rotation of the lever 24 from the initial position to the connection position in a state out of contact with the cam pin 41, the cam projections 23 are moved without changing their position relation with the axis of rotation 13 of the lever 24 in the release space 31. Figure to be published with the abstract: FIG. 5
公开号:FR3082365A1
申请号:FR1906017
申请日:2019-06-06
公开日:2019-12-13
发明作者:Tomoaki Yasuda
申请人:Sumitomo Wiring Systems Ltd；
IPC主号:

专利说明:

Description
Title of the invention: Lever type connector The present invention relates to a lever type connector.
In the prior art, patent literature 1 describes a lever type connector with a male housing comprising a tubular receptacle extending forward, a lever mounted so as to be able to rotate on the male housing, a movable plate received in the receptacle, male terminal connection lugs being positioned through the movable plate, and a female housing intended to be assembled in the receptacle. The movable plate can be moved between a protective position in which front end portions of the legs are passed through the movable plate and a retracted position behind the protective position.
When connecting the two housings, the female housing is assembled in the receptacle, the lever being located in an initial position, and a cam pin of the female housing and a cam projection of the movable plate are inserted at the entry of a lever cam groove when joined. If the lever is turned to a connection position from this state, the female housing is driven towards the male housing and the two housings are connected by an amplification action by the sliding contact of the cam pin and the groove cam.
If the lever is turned to the initial position, the two housings being connected, the movable plate moves towards the front end of the receptacle in order to push the female housing relative to the male housing by an amplification action with the sliding contact of the cam projection and the cam groove. Thus, the two boxes can be separated. If the lever returns to the initial position, the movable plate returns to the protective position in which the front end portions of the legs pass through the movable plate.
Patent literature 1 includes the publication of Japanese patent unexamined ΝΉ11-673372017-4736 [0006] In summary, the invention proposes to solve the following technical problem.
In the connector of the previous lever type, if the lever is rotated between the initial position and the connection position, the two housings being separated, the movable plate is moved towards a rear face of the receptacle with the sliding contact of the cam projection and the cam groove. When the movable plate moves toward the rear face of the receptacle, the tabs are exposed towards the front of the movable plate, so that a foreign element can interfere with the tabs.
The present invention has been made on the basis of the previous situation and aims to limit movement of a movable plate when a lever is rotated while a male housing and a female housing are separated.
In solution to the problem, the present invention relates to a lever type connector with a male housing comprising a tubular receptacle extending towards a front surface side, a plurality of male terminal fittings mounted in the male housing and having tabs surrounded by the receptacle, a movable plate received in the receptacle and movable between a protective position in which end portions of the plurality of tabs are positioned through the movable plate and a position retracted towards the rear of the protective position, a cam projection formed on the movable plate, a female housing having a cam pin and can be assembled in the receptacle, a lever mounted on the male housing and configured to connect the female housing and the male housing by rotation from an initial position to a connection position while sliding in c ontact with the cam pin, a first passage formed on the lever, curved so as to approach an axis of rotation of the lever from an inlet towards a rear face and allowing the displacement of the cam projection towards the axis of rotation of the lever during the rotation of the lever from the initial position to the connection position while sliding in contact with the cam pin, and a second passage formed on the lever and configured so as to allow the displacement of the cam projection without changing the position relation with respect to the axis of rotation of the lever during the rotation of the lever from the initial position towards the connection position while being kept out of contact with the spindle cam.
Therefore, if the lever rotates from the initial position to the connection position in a state in which the two housings are separated and the lever is out of contact with the cam pin, the cam projection is moved in the second passage while being maintained in a state such that it cannot approach the axis of rotation of the lever. Thus, the movable plate also does not move from the protective position.
A brief description of the drawings will now be made.
[Fig. 1] FIG. 1 is a side view showing a state in which a lever is in an initial position on a male housing constituting a connector of the lever type according to a first embodiment, [0013] [fig-2] the figure 2 is a side view in section when the lever is in the initial position, the male housing and a female housing being separated, [0014] [fig.3] Figure 3 is a side view in section when the lever is at a connection position, the male housing and a female housing being separated, [0015] [fig.4] Figure 4 is a side view in section showing a positional relationship between cam projections, a cam groove and a release space in a state in which the male housing and the female housing are separated and the lever is in the initial position, [fig. 5] FIG. 5 is a side view in section showing a positional relationship between cam protrusions, cam groove and clearance space tion in a state in which the male housing and the female housing are separated and the lever is in the connection position, [0017] [fig.6] Figure 6 is a sectional view along the axis XX of Figure 5 , [Fig-7] FIG. 7 is a side view in section showing a state in which the male housing and the female housing are connected, [FIG. 8] [FIG. 8] is a side view in section showing a positional relationship between cam protrusions, a cam pin, the cam groove and the release space in a state in which the male housing and the female housing begin to be connected and the lever is at the initial position, [fig-9] Figure 9 is a sectional side view showing a positional relationship between the cam projections, the cam pin, the cam groove and the release space in a state in which the male housing and the female housing are connected and the lever is in the connection position ement, [fig.10] Figure 10 is a sectional view along the axis YY of Figure 9, [0022] [fig.l 1] Figure 11 is a perspective view of the male housing, [ 0023] [fig. 12] Figure 12 is a perspective view of the movable plate, [0024] [fig. 13] Figure 13 is a perspective view of the lever, and [0025] [fig. 14] Figure 14 is a perspective view of the female housing.
Embodiments will now be described.
The present invention may be such that an entrance to the second passage is adjacent to the entrance to the first passage and communicates with it, and the second passage is arranged in an area more distant from the axis of lever rotation as the first pass in an area behind the first pass and second pass entries. According to this configuration, since the entry of the first passage and the entry of the second passage communicate with each other, the shape of the lever can be simplified by comparison with the case in which the entry of the first passage and the entry from the second passage are separate spaces.
The present invention may be such that the first passage comprises a connection cam surface maintained out of contact with the cam projection and configured so as to apply a pressure force in a connection direction on the cam pin to the during the connection operation of the male housing and the female housing. According to this configuration, the first passage serves not only as a space for moving the cam projection, but also as a space for moving the cam pin. Thus, the shape of the lever can be simplified by comparison with the case in which a passage dedicated to the displacement of the cam pin during the operation of connecting the two housings is formed separately with respect to the first passage.
The present invention may be such that the second passage is embedded more superficially than the first passage, and a projection dimension of the cam pin is defined at a value greater than a projection dimension of the cam projection . According to this configuration, the incorrect entry of the cam pin into the second passage can be prevented during the connection operation of the two housings.
The present invention may comprise a separation cam surface formed on the first passage and configured so as to apply a pressure force on the cam projection in a direction making it possible to separate the male housing and the female housing during rotating the lever to the initial position from a state in which the male housing and the female housing are connected. According to this configuration, the first passage serves not only as a space for displacement of the cam projection during the operation of connecting the two housings, but also as a space for displacement of the cam projection during the operation separating the two boxes. Thus, the shape of the lever can be simplified by comparison with the case in which a passage dedicated to the displacement of the cam projection during the operation of separating the two housings is formed separately with respect to the first passage.
The present invention may be such that the lever has a limiting surface arranged so as to face the axis of rotation of the lever and extending along an external peripheral edge of the release space. According to this configuration, the cam projection comes into contact with the limiting surface, so that separation of the movable plate at the protection position can be prevented towards the front surface side of the receptacle.
A specific embodiment of the present invention is described below, with reference to Figures 1 to 14. It may be noted that, in the following description, a left side in Figures 1 to 5 and 7 to 9 is defined as a front side with respect to a longitudinal direction. With respect to a vertical direction, upper and lower sides shown in Figures 1 to 14 are defined directly as upper and lower sides. It can be noted that an upper side and a front surface side are synonymous and that a lower side and a rear surface side are synonymous.
A lever type connector of this embodiment is described. The lever type connector comprises a male housing 10 made of a synthetic resin and comprising a tubular receptacle 12 extending towards the front surface side and a female housing 40 made of a synthetic resin, which can be assembled in the receptacle 12 and comprising a pair of bilaterally symmetrical cam pins 41 extending over the two outer left and right side surfaces. A plurality of male terminal connections 15 comprising lugs 17 surrounded by the receptacle 12 is mounted in the male housing 10.
A movable plate 18 made of a synthetic resin and can be moved in the vertical direction between a protective position in which end portions of a plurality of lugs 17 are positioned through the movable plate 18 and a position retracted back from the protective position (below) is received in the receptacle 12. The movable plate 18 is formed of pairs of cam projections 23 left and right. A lever 24 made of a synthetic resin and capable of rotating between an initial position and a connection position is mounted on the male housing 10. The lever 24 has an amplification function when the female housing 40 and the male housing 10 are connected when it is rotated from the initial position to the connection position while sliding in contact with the cam pins 4L The male housing 10 and the male terminal connections 15 will be described below.
The male housing 10 includes a terminal retaining portion 11 in the form of a block and the receptacle 12 in the form of a rectangular tube extending upwards from the external peripheral edge of the terminal retaining part 11. The terminal body portions 16 of the plurality of male terminal fittings 15 are received in the terminal retaining portion 11, and the tabs 17 formed on end portions of the male terminal fittings 15 are received in the receptacle 12 while extending upward from the terminal retaining portion 11. A pair of left and right rotating shafts 13 (axis of rotation of lever 24) is formed on both the left and right side surfaces of the male housing 10. In addition, a pair of left and right cut parts 14 is formed on the two left and right external wall parts of the receptacle 12 by being cut down from the upper end parts of the par parts. external oi (open end edge part of receptacle 12).
The movable plate 18 will then be described below.
The movable plate 18 is a simple component comprising a flat body part in the form of a flat plate, the direction of the thickness of the plate is parallel to a direction of movement of the movable plate 18 and a part of peripheral wall 20 extending upward from the outer peripheral edge of the flat body portion 19. The flat body portion 19 has a plurality of positioning holes 21 for individually positioning the plurality of tabs 17 passing through . A pair of bilaterally symmetrical guide grooves 22 is formed on both the left and right side wall portions of the peripheral wall portion 20 by being cut down (toward the rear surface side) from the edge upper end (open end edge) of the peripheral wall portion 20.
A pair of front and rear cam projections 23 extending from a lower end portion of a groove edge portion of the guide groove 22 is formed on each of the two left outer side surfaces and right of the peripheral wall part 20. The movable plate 18 being received in the receptacle 12, the two cam projections 23 extend towards the outside of the external lateral surface of the receptacle 12 through the cut-out part 14. The cam projections 23 can be received in a cam groove 28 and a release space 31 of the lever 24 which will be described later.
The movable plate 18 can move between a protective position (see Figures 2 and 3) and a retracted position (see Figure 7) without being tilted, causing the sliding of the peripheral wall portion 20 in contact with the internal peripheral surface of the receptacle 12. Since the tip parts (upper end parts) of the lugs 17 pass through the positioning orifices 21 of the flat body part 19, the movable plate 18 being located in the protection position, shortening of an upward projection dimension of the tabs 17 from the flat body portion 19 is prevented.
With the movable plate 18 located in the retracted position, base end portions of the legs 17 pass through the positioning holes 21 since the flat body portion 19 is in contact with the upper end surface of the terminal retaining part 11 (bottom surface of the receptacle 12) or close to it. Thus, the length of the upward projection of the tabs 17 from the flat plate body part 19 is greater than that obtained when the movable plate 18 is in the protection position.
The lever 24 will now be described.
The lever 24 is a simple component comprising a pair of bilaterally symmetrical plate-shaped arm parts 25 and an activation part 26 coupling tip parts of the two arm parts 25 to each other. Bearing holes 27 penetrating in a lateral direction are formed at locations on base end sides of the two arm parts 25. The lever 24 is mounted on the male housing 10 by assembling the bearing holes 27 on the shafts turning 13 and so as to be able to rotate between an initial position (see FIGS. 1, 2, 4 and 8) and a connection position (see FIGS. 3, 5, 7 and 9). The lever 24 being mounted on the male housing 10, the arm parts 25 are arranged so as to face the external lateral surfaces of the receptacle 12 and to cover the cutting parts 14.
The lever 24 is formed of a pair of bilaterally symmetrical grooves 28 by arranging internal lateral surfaces of the two arm parts 25 in withdrawal. The cam groove 28 is curved substantially in an arc in order to surround the bearing orifice 27 (axis of rotation of the lever 24) and an inlet 28E of the cam groove 28 is open on the external peripheral edge of the arm part. 25. A radial distance from the bearing hole 27 to the cam groove 28 is greater than the level of the inlet
28E of the cam groove 28 and lower at the rear end portion of the cam groove 28.
During the connection and separation operation of the two housings 10, 40, the cam projections 23 of the movable plate 18 and the cam pins 41 of the female housing 40 move relatively in the cam grooves 28 An internal lateral surface of the cam groove 28 on an external side facing the bearing hole 27 (rotating shaft 13) functions as a connecting cam surface 29. An internal lateral surface of the cam groove 28 on an internal side back to back with the bearing hole 27 (rotating shaft 13) functions as a separation cam surface 30. The separation cam surface 30 is disposed at a location closer to the rotating shaft 13 than the connecting cam surface 29.
The lever 24 is formed of a pair of bilaterally symmetrical release spaces 31 by setting back the internal lateral surfaces of the two arm parts 25. During the operation of rotation of the lever 24 between the initial position and the connection position, the two housings 10, 40 being separated, the cam projections 23 are displaced relatively in the release spaces 31. A depth (dimension parallel to an axis of the rotating shaft 13) of the space release 31 from the inner side surface of the arm portion 25 is set to a value less than a depth of the cam groove 28. Thus, the connecting cam surface 29 is disposed in a rear area of the space release 31 in the direction of the depth of the cam groove 28 and the release space 31.
An insertion depth of the cam projections 23 in the release space 31 is defined at a value equal to or slightly less than the depth of the release space 31. When the cam projections 23 move in the release space 31, projecting end surfaces (left end surfaces in Figure 6) of the cam projections 23 are kept out of contact, or in slightly sliding contact, with the internal surface of the space of release 31. In addition, the separation cam surface 30 is arranged in the same depth zone as the release space 31 in the direction of the depth of the cam groove 28 and the release space 31. Thus , the external peripheral surfaces of the cam projections 23 and of the external peripheral surface of the cam pin 41 which will be described later can slide in contact with the separation cam surface (30) 31. However, although the cam pin 41 which will be described later slides in contact with the connection cam surface 29, the cam projections 23 cannot come into contact with the connection cam surface 29.
The release space 31 is disposed in a zone more distant from the rotating shaft 13 than the connection cam surface 29 and the separation cam surface 30 on the surface of the inner side of the part of arm 25. The release space communicates with the cam groove 28 over the entire surface from an inlet 31E towards a rear end. That is, the inlet 31E of the release space 31 is adjacent to and communicates with the inlet 28E of the cam groove 28. In addition, the release space 31 is adjacent to the connection cam surface 29 in a radial direction (direction perpendicular to the rotating shaft 13 and intersecting a direction of rotation of the lever 24).
The arm part 25 has a limiting surface 32 facing the rotating shaft 13 in the radial direction. The limiting surface 32 is formed over the entire area of the release space 31 from the entry 31E towards the rear end so as to extend along the outer peripheral edge of the release space 31 A zone of the limiting surface 32 towards the rear of the entry 31E of the release space 31 has a substantially arcuate shape concentric with respect to the rotating shaft 13. A radial distance between the substantially arcuate zone of the limiting surface 32 and an axis of the rotating shaft 13 is defined at a value greater than a distance from the axis of the rotating shaft 13 to the upper ends of the cam projections 23 (parts of the cam projections 23 most distant from the rotating shaft 13) when the movable plate 18 is in the protective position. In this way, the cam projections 23 are kept out of contact with the limiting surface 32 over the entire operation of relative movement of the cam projections 23 in the release space 31.
The female housing 40 will now be described.
The female housing 40 is, as a whole, in the form of a block and can be assembled on the movable plate 18 (receptacle 12). A plurality of female terminal fittings 42 are received in the female housing 40. A pair of bilaterally symmetrical cam pins 41 is formed so as to extend over the two outer left and right side surfaces of the female housing 40. When the housing female 40 is assembled on the movable plate 18, the cam pin 41 and the pair of cam projections 23 can be united, the cam pin 41 being interposed between the pair of cam projections 23 in the longitudinal direction. The cam pin 41 and the pair of cam protrusions 23 can be moved relatively in the vertical direction (direction parallel to a direction of connection / separation of the two housings 10, 40) when they are united.
The cam pin 41 and the cam projections 23 being united, a projecting end of the cam pin 41 extends laterally (direction parallel to the axis of the rotating shaft 13) from the ends in projection of the cam projections 23 as shown in Figure 10. In addition, since a vertical dimension of the cam pin 41 is defined to be greater than that of the cam projections 23, at least one of a front end portion and a rear end portion of the cam pin extends forward or backward of the cam projections 23, the cam pin 41 and the cam projections 23 being united .
In addition, during the connection / separation operation of the male housing 10 and the female housing 40, a large load due to the sliding resistance does not act on the movable plate 18. Thus, the projections of cam 23 are formed and dimensioned so as to have relatively low stiffness and resistance. On the contrary, since a significant slip resistance due to the elastic contact between the male terminal fittings 15 and the female terminal fittings 42 is produced between the male housing 10 and the female housing 40, a large load acts on the cam pins. 41 from the lever 24. Consequently, the cam pins 41 are formed and dimensioned so as to have a rigidity and a resistance greater than those of the cam projections 23.
The operation and the effects will be described.
In a state in which the male housing 10 and the female housing 40 are separated and the lever 24 is in the initial position (see FIG. 2), the inputs 28E of the cam grooves 28 and the inputs 31E of the release spaces 31 open upwards and the cam projections 23 are located in contact with or near the rear end surfaces of the inlets 28E of the cam grooves 28, as shown in FIG. 4. When the projections cam 23 are located at the inputs 28E of the cam grooves 28, the movable plate 18 is located in the protective position. The movable plate 18 in the protection position is locked by stops 33 formed on the receptacle 12, so that movement to the retracted position is limited.
If the female housing 40 is partially assembled in the receptacle 12 from this state, the female housing 40 is assembled in the peripheral wall portion 20 of the movable plate 18 and approaches the upper surface of the portion of flat body 19, i.e., faces the top surface of the flat body portion 19 without coming into contact therewith. It can be noted, at this instant, that the female housing 40 can come into contact with the upper surface of the flat body part 19. When the female housing 40 is partially assembled on the movable plate 18, the cam pins 41 enter by the inputs 28E of the cam grooves 28 and enter between the pairs of cam projections 23, so that the cam pins 41 and the cam projections 23 are united. At this time, the cam pins 41 come into contact with the rear end surfaces of the inputs 28E and the upper end parts (rear end part in the direction of connection) of the cam pins 41 extend towards the top of the cam projections 23.
In addition, since the female housing 40 moves the stops 33, the movable plate 18 can move to the retracted position. If the lever 24, in the initial position, is turned to the connection position from this state, the cam pins 41 slide in contact with the connection cam surfaces 29 of the cam grooves 28 in order to provide a function of amplification, so that the female housing 40 is driven towards the male housing 10 so as to be more fully connected.
In an initial step of the connection operation of the two housings 10, 40 (operation of rotation of the lever 24), the connection cam surfaces 29 press the upper end parts of the cam pins 41. Thus, only the female housing 40 moves downward (in the connection direction). Since at this instant, the connecting cam surfaces 29 are not in contact with the cam projections 23 the movable plate 18 does not move relative to the protection position. The female housing 40 comes into surface contact with the upper surface of the flat body part 19 after a slight movement.
Then, when the lever 24 is turned, the movable plate 18 is pushed by the female housing 40, thus being pushed towards a rear side (lower side) of the receptacle 12 in a unitary manner with the female housing 40. When the lever 24 reaches the connection position, the two housings 10, 40 are correctly connected and the lugs 17 of the male terminal fittings 15 are inserted into the female housing 40 so as to be connected to the female terminal fittings 42.
Since the cam projections 23 and the connection cam surfaces 29 are kept out of contact with each other until the lever 24 is turned towards the connection position after the female housing 40 has entered surface contact with the flat body part 19, a position relationship between the movable plate 18 and the female housing 40 in the vertical direction does not change. Thus, the female housing 40 and the flat body part 19 are maintained in surface contact with each other.
As just described, during the rotation of the lever 24 from the initial position to the connection position, only the female housing 40 moves in the initial stage of rotation, so that the movable plate 18 and the female housing 40 come into contact so as to unite. After that, the female housing 40 is connected to the male housing 10 while being kept united with the movable plate 18 until the connection position is reached.
In addition, the upper ends of the cam projections 23 and those of the cam pins 41 are placed in substantially the same position in the vertical direction, and the upper end portions of the cam projections 23 can be placed toward the top of the connecting cam surfaces 29 while the lever 24 is rotated toward the connecting position or in a state in which the lever 24 has reached the connecting position. Thus, the upper end portions of the cam projections 23 can interfere with the lever 24. However, since the release spaces 31 are disposed above the connection cam surfaces 29 and adjacent thereto, the cam protrusions 23 prevent interference with the lever 24 by inserting the upper end parts (parts) thereof into the release spaces 31.
If the lever 24 in the connection position is turned towards the initial position, the two housings 10, 40 being connected, the separation cam surfaces 30 slide in contact with the cam projections 23 and the cam pins 41 , so that the movable plate 18 in the retracted position is pushed upwards (towards the open end side of the receptacle 12) in order to move towards the protection position and the female housing 40 is pushed upwards so as to be separated from the male housing 10.
More specifically, the two housings 10, 40 being connected, the cam projections 23 are substantially separated from the separation cam surfaces 30, while the lower end portions of the cam pins 41 extend further downward as the lower ends of the cam projections 23 and are in contact with or near the separation cam surfaces 30. Thus, in the initial stage of rotation of the lever 24, the separation cam surfaces 30 slide in contact only with the lower end portions of the cam pins 41 and the female housing 40 is pushed up so as to be separated from the flat body part 19. During this period, the movable plate 18 does not move and the cam pins 41 move relatively upward relative to the cam projections 23.
If the lever 24 is turned further after the female housing 40 has been separated from the flat body part 19, the separating cam surfaces 30 begin to slide in contact with the lower end parts of the cam projections 23. After that, the separating cam surfaces 30 slide in contact with both the cam projections 23 and the cam pins 41 and both the movable plate 18 and the female housing 40 move upwardly the lever 24 reaches the initial position. When the lever 24 returns to the initial position, the cam pin 41 and the cam projections 23 return to the inlets 28E of the cam grooves 28, so that the two housings 10, 40 can be separated by lifting the female housing 40.
It can be noted that if an attempt is made to cause the separation cam surfaces 30 to slide in contact with only the cam projections 23 during the rotation of the lever 24 from the connection position to the initial position , the female housing 40 is pushed in the direction of separation by the flat body part 19. In this case, since a load which is equivalent to the high separation resistance between the male housing 10 and the female housing 40, acts on the cam protrusions 23, the cam protrusions 23 must be widened so as to have a high resistance. If the cam projections 23 are widened, the release spaces 31 must also be widened.
Since the widening of the clearance spaces 31 leads to the expansion of thin areas on the lever 24, this is not preferable in terms of resistance.
To avoid this, in this embodiment, the female housing 40 is separated from the flat body part 19 by causing the separation cam surfaces 30 to slide in contact with only the cam pins 41 in the step initial operation of rotation of the lever 24 from the connection position to the initial position. Then, the female housing 40 and the flat body portion 19 are moved in the separation direction while being kept in the separated state by causing the separation cam surfaces 30 to slide into contact with both the cam projections 23 and the cam pins 41 until the lever 24 reaches the initial position after the separating cam surfaces 30 have started to slide in contact with the cam projections 23. In this way, the miniaturization of the cam projections cam 23 can be realized.
A contact zone of the separation cam surface 30 with the cam projections 23 and the cam pin 41 is oblique with respect to the connection / separation direction, but an angle of inclination of the contact zone of the separating cam surface 30 varies during the rotation operation of the lever 24. In addition to this, the cam projections 23 and the cam pin 41 are arranged side by side in a direction intersecting the connection direction /separation. Thus, a distance of movement of the female housing 40 and a distance of movement of the movable plate 18 when the lever 24 is turned by a certain angle are slightly different. However, since the female housing 40 and the flat body part 19 are kept sufficiently spaced from each other, there is no possibility that the female housing 40 and the flat body part 19 interfere with each other. with the other during the operation of rotation of the lever 24.
In addition, if the two housings 10, 40 are separated and the lever 24 is returned to the initial position, the movable plate 18 returns to the protective position. Since the activation part 26 of the lever 24 is in a position deflected forward with respect to an opening zone of the receptacle 12 in this state, the entire zone of the upper end of the receptacle 12 is open . However, since the length of the upward projection of the tabs 17 from the flat body part 19 is relatively small, the movable plate 18 being located in the protective position, there is no risk of interference from foreign matter with legs 17.
On the lever type connector of this embodiment, the lever 24 is rotated from the initial position to the connection position, the two housings 10, 40 being kept separate, such as when the male housing 10 is mounted on another element. If the connecting cam surfaces 29 of the lever 24 press the cam projections 23 when the lever 24 is turned towards the connection position, the movable plate 18 may fall to the retracted position, the length of the projection of the tabs 17 relative to the flat body portion 19 may increase and the tabs 17 may be deformed due to interference with another element.
However, since the cam projections 23 do not interfere with the connection cam surfaces 29 on the lever type connector of this embodiment, no pressure force in the connection direction acts on the cam projections 23 from the lever 24. In addition, since the separation cam surfaces 30 move away from the cam projections 23 as a function of the rotation of the lever 24, no pressure force in the separation direction n acts on the cam projections 23 from the lever 24. Thus, the cam projections 23 are inserted into the release spaces 31 and moved relatively in a circumferential direction in the release spaces 31 as a function of the rotation of the lever 24 Since the cam projections 23 are kept out of contact with the lever 24 (a state in which no pressure force in the radial and circumferential directions is received from the lever 24) p while the cam projections 23 are moved relatively in the release spaces 31, the movable plate 18 is held in the protective position.
In addition, if the lever 24 is turned towards the initial position after having been turned towards the connection position, the two housings 10, 40 being separated, the cam projections 23 are moved relatively in the release spaces 31 and return to the entries 28E of the cam grooves 28. Since neither the separating cam surfaces 30 nor the connecting cam surfaces 29 are in contact with the cam projections 23 during this period, the movable plate 18 is held at the protective position.
On the lever type connector of this embodiment, the lever 24 has the connecting cam surfaces 29 and the release spaces 31. The connecting cam surfaces 29 press the cam pins 41 in the direction connection while being kept out of contact with the cam projections 23 during the rotation of the lever 24 from the initial position to the connection position. In addition, the cam protrusions 23 are received in the release spaces 31 while being kept out of contact with the connecting cam surfaces 29 during the rotation of the lever 24 from the initial position to the connecting position. in a state in which the two housings 10, 40 are separated and the movable plate 18 is in the protective position.
According to this configuration, since the connection cam surfaces 29 do not come into contact with the cam projections 23 in the release spaces 31, no pressure force in the connection direction acts on the movable plate 18. In this way, the movable plate 18 can be held in the protective position. In addition, the cam grooves 28 serve not only as spaces for ensuring the displacement of the cam projections 23, but also as spaces for ensuring the displacement of the cam pins 41. Thus, the shape of the lever 24 can be simplified by comparison with the case in which dedicated passages, allowing the displacement of the cam pin 41 during the connection operation of the two housings 10, 40, are formed separately with respect to the cam grooves 28.
On the lever type connector of this embodiment, the lever 24 has the cam grooves 28. The cam groove 28 is curved so as to bring the rotating shaft 13 (axis of rotation of the lever 24) relative to entry 28E towards the rear side. During the rotation of the lever 24 from the initial position to the connection position while sliding in contact with the cam pins 41, the cam grooves 28 serve as first passages allowing the displacement of the cam projections 23 towards the rotating shafts 13.
Similarly, the lever 24 includes the release spaces 31. During the rotation of the lever 24 from the initial position to the connection position in a state without contact with the cam pin 41, the spaces release 31 serve as second passages in order to allow the displacement of the cam projections 23 without modifying the position relation with the rotating shafts 13. Thus, if the lever 24 is rotated from the initial position towards the connection position in a state in which the two housings 10, 40 are separated and the lever 24 is out of contact with the cam pins 41, the cam projections 23 are moved in the release spaces 31 while being maintained in a state such that do not approach the axis of rotation of the lever 24. Thus, the movable plate 18 also does not move relative to the protective position.
In the lever type connector of this embodiment, the lever 24 includes the separation cam surfaces 30 and the release spaces 31 arranged in the areas more distant from the rotating shafts 13 than the cam surfaces separation 30. During the rotation of the lever 24 from the connection position to the initial position, the two housings 10, 40 being connected, the separation cam surfaces 30 press the cam projections 23 in a direction deviating rotating shafts 13, so that the two housings 10, 40 are separated. In addition, during the rotation of the lever 24 from the initial position to the connection position in the state in which the two housings 10, 40 are separated and the movable plate 18 is in the protective position, the projections cam 23 are received in the release spaces 31 while being separated from the separation cam surfaces 30.
According to this configuration, the two housings 10, 40 being separated, the cam projections 23 are pushed by the separation cam surfaces 30 so as to be arranged at more distant locations relative to the rotating shafts 13 of the lever 24 The release spaces 31 are arranged in the areas more distant from the rotating shafts 13 than the separation cam surfaces 30. Thus, during the rotation of the lever 24 towards the connection position, the two housings 10, 40 being separated , the cam projections 23 received in the release spaces 31 do not approach the rotating shafts 13. In this way, the movable plate 18 is held in the protective position.
In the lever type connector of this embodiment, the female housing 40 has the cam pins 41. In a state in which the female housing 40 is assembled in the receptacle 12 and the cam pins 41 and the cam protrusions 23 are united, a protrusion length of the cam pins 41 relative to the outer lateral surfaces of the male housing 10 is greater than that of the cam protrusions 23 from the outer lateral surfaces of the male housing 10. On the other hand , the lever 24 comprises the cam grooves 28 in order to receive the cam projections 23 and the cam pins 41 in the connection / separation operation of the two housings 10, 40. Similarly, the lever 24 comprises the spaces for release 31 intended to limit the entry of the cam pins 41 by being set back more superficially than the cam grooves 28. The release spaces 31 are set back more than the cam grooves 28.
During the rotation of the lever 24 from the initial position to the connection position in the state in which the two housings 10, 40 are separated and the movable plate 18 is in the protective position, the projections cam 23 are received in the release spaces 31 while being kept out of contact with the lever 24. Thus, no pressure force in the connection direction acts on the movable plate 18, so that the movable plate 18 can be held in the protective position. In addition, during the connection operation of the two housings 10, 40, the incorrect entry of the cam pins 41 into the release spaces 31 is prevented.
In addition, the lever 24 has the cam grooves 28 which can receive the cam projections 23 and the cam pins 41 in the connection operation of the two housings 10, 40, and the cam grooves 28 comprise the surfaces 29. The release spaces 31 are adjacent to the connection cam surfaces 29 and communicate with the cam grooves 28. Since the release spaces 31 communicate with the cam grooves 28, the cam projections 23 and the cam pins 41 can be moved in the cam grooves 28 while being united in a step of connecting the two housings 10, 40. In addition, since the cam grooves 28 double the movement paths for the cam projections 23 in the operation of connecting the two housings 10, 40, the shape of the lever 24 can be simplified by comparison with the case in which the lever 24 has dedicated displacement paths for the cam projections 23 of distinctly from the cam grooves 28.
In addition, the release spaces 31 can be arranged in the areas more distant from the rotating shafts 13 than the connecting cam surfaces 29. According to this configuration, since the cam projections 23 do not approach the axis of rotation of the lever 24 during the rotation of the lever 24 from the initial position to the connection position, the two housings 10, 40 being separated, the movable plate 18 can be maintained in the protective position.
In addition, the lever 24 has the separation cam surfaces 30. In the operation of separating the two housings 10, 40 by rotation of the lever 24 towards the initial position from the state in which the two housings 10, 40 are connected, the separating cam surfaces 30 press the cam projections 23 so that the movable plate 18 is moved to the protective position. According to this configuration, if the lever 24 is rotated from the connection position to the initial position, the two housings 10, 40 being connected, the separation cam surfaces 30 press the cam projections 23 in order to move the movable plate 18 to the protective position. The two housings 10, 40 are separated in the operation of moving the movable plate 18 towards the protection position.
In addition, the female housing 40 has the cam pins 41 intended to be pressed in the connection direction by the cam grooves 28 when the lever 24 is rotated from the initial position to the connection position in the operation of connecting the two housings 10, 40. The release spaces 31 communicate with the cam grooves 28 and the cam grooves 28 comprise the separation cam surfaces 30. According to this configuration, the cam grooves 28 are used for the times of displacement paths for the cam pins 41 during the operation of connecting the two housings 10, 40 and of displacement paths for the cam projections 23 during the operation of separation of the two housings 10, 40 Thus, the shape of the lever 24 can be simplified by comparison with the case in which the lever 24 has dedicated separation displacement spaces for the cam projections 23 in a distinguished manner. side relative to the cam grooves 28.
In addition, the entry 31E of the release space 31 is adjacent to the entry 28E of the cam groove 28 and communicates therewith, and the release space 31 is arranged in the area more distant from the rotating shaft 13 that the cam groove 28 in the area behind the inputs 28E, 31E on the cam groove 28 and the release space 31. According to this configuration, since the input 28E of the cam groove 28 and the entry 31E of the release space 31 are adjacent and communicate with each other, the shape of the lever 24 can be simplified in comparison with the case in which the entry 28E of the cam groove 28 and the inlet 31E of the release space 31 are separate spaces which do not communicate with each other.
In addition, the lever 24 has the limiting surfaces 32 arranged to face the rotating shafts 13 and extends along the outer peripheral edges of the release spaces 31. According to this configuration, the cam projections 23 come in contact with the limiting surfaces 32, so that it is possible to prevent the movable plate 18, in the protection position, from moving towards a side opposite to the retracted position and being separated through the opening on the surface front of the receptacle 12. It can be noted that, since the cam projections 23 displaced relatively in the release spaces 31 are kept out of contact with the limiting surfaces 32 during the rotation of the lever 24 between the initial position and the position connection, the two housings 10, 40 being separated, there is no risk that the movable plate 18 in the protective position falls back towards the retracted position.
Other embodiments are possible.
The present invention is not limited to the embodiment described and shown above. For example, the following embodiments can also be contained within the technical scope of the present invention.
(1) Although the movable plate is held in the protective position during the rotation of the lever from the initial position to the connection position, the two housings being separated in the previous embodiment, the movable plate can be moved slightly to the retracted position during the lever rotation operation.
(2) In the previous embodiment, the first passage (connection cam surface) is arranged on the internal peripheral side closer to the rotating shaft than the second passage. Contrary to this, the second passage can be arranged on the internal peripheral side closer to the rotating shaft than the first passage (connection cam surface). In this case, the union of the cam pin and the cam projections can be prevented during the connection operation of the two housings.
(3) Although the limiting surface is formed along the external peripheral edge of the second passage in the previous embodiment, the second passage may not have a limiting surface and may lead to the external peripheral edge of the the sink.
(4) Although the entry of the first passage and that of the second passage are adjacent to each other and communicate with each other in the previous embodiment, the entry of the first pass and that of the second pass can be separate spaces.
List of reference numbers [...] 10 ... male housing [0095] 12 ... receptacle [0096] 13 ... rotating shaft (lever rotation axis) [0097] 15 ... terminal connection male [...] 17 ... lug [0099] 18 ... movable plate [0100] 23 ... cam projection [0101] 24 ... lever [0102] 28 ... cam groove (first pass) [0103] 28E .. cam groove inlet [0104] 29 ... connecting cam surface [0105] 30 ... separating cam surface [0106] 31 ... release space (second pass) [ 0107] 31E .. free space entry [0108] 32 ... limiting surface [0109] 40 ... female housing [0110] 41 ... cam pin

权利要求:
Claims (1)
[1" id="c-fr-0001]
[Claim 1] [Claim 2] [Claim 3]
claims
Lever type connector, comprising:
a male housing having a tubular receptacle extending to a front surface side;
a plurality of male terminal fittings mounted in the male housing and having tabs surrounded by the receptacle;
a movable plate received in the receptacle and movable between a protective position in which end portions of the plurality of legs are positioned through the movable plate and a position retracted backwards from the protective position;
a cam projection formed on the movable plate;
a female housing comprising a cam pin and which can be assembled in the receptacle;
a lever mounted on the male housing and configured to connect the female housing and the male housing by rotation from an initial position to a connection position while sliding in contact with the cam pin;
a first passage formed on the lever, curved so as to approach an axis of rotation of the lever from an entry towards a rear face and allowing the displacement of the cam projection towards the axis of rotation of the lever at during rotation of the lever from the initial position to the connection position while sliding in contact with the cam pin; and a second passage formed on the lever and configured so as to allow the displacement of the cam projection without changing the position relation with respect to the axis of rotation of the lever during the rotation of the lever from the initial position towards the connection position while being kept out of contact with the cam pin.
A lever type connector according to claim 1, wherein: a second passage inlet is adjacent to and communicates with the first passage inlet; and the second passage is arranged in an area more distant from the axis of rotation of the lever than the first passage in an area behind the inlets of the first passage and the second passage. A lever type connector according to claim 1 or 2, wherein the first passage has a connecting cam surface
kept out of contact with the cam projection and configured to apply a pressure force in a connection direction on the cam pin during the connection operation of the male housing and the female housing. [Claim 4] A lever type connector according to any of claims 1 to 3, wherein:the second passage is embedded more superficially than the first passage; anda projection dimension of the cam pin is set to a value greater than a projection dimension of the cam projection. [Claim 5] A lever type connector according to any of claims 1 to 4, comprising a separating cam surface formed on the first passage and configured to apply pressure force on the cam projection in a direction for separating the male housing and female housing during rotation of the lever to the initial position from a state in which the male housing and the female housing are connected. [Claim 6] A lever type connector according to any one of claims 1 to 5, wherein the lever has a limiting surface arranged to face the axis of rotation of the lever and extending along a peripheral edge release space.
1/10

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同族专利:

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公开号 | 公开日

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US20190379160A1|2019-12-12|

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CN110571593A|2019-12-13|

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FR3082365B1|2021-04-23|

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CN110571593B|2021-03-23|

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US10644445B2|2020-05-05|

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JP6933191B2|2021-09-08|

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JP2019212520A|2019-12-12|

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法律状态:
2020-05-12| PLFP| Fee payment|Year of fee payment: 2 |

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2020-07-31| PLSC| Search report ready|Effective date: 20200731 |

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2021-05-13| PLFP| Fee payment|Year of fee payment: 3 |

优先权:

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申请号 | 申请日 | 专利标题

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JP2018-108703|2018-06-06|

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JP2018108703A|JP6933191B2|2018-06-06|2018-06-06|Lever type connector|

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