• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A locking arm (21) formed on a second housing (20) mounted in a first housing (10) comprising a locking unit (13) comprises an elastically deformable locking arm body (22), first and second legs ( 23, 24) connecting the locking arm body to the second housing with a gap (G1) therebetween, a locking portion (25) to be locked on the locking unit, and an extension (28a, 28b) extending obliquely from the locking arm body, wherein, when the extension is pushed towards the locking arm body, the locking arm body is deformed, and then the extension comes into contact with the arm body and then the locking arm body is deformed with the first and second legs acting as fulcrums and further with an abutment point (31) acting as a working point to allow thus to the blocking part to be released from the blocking unit, the extensi and the locking arm body engaging with each other at the stop point.
    公开号:FR3016483A1
    申请号:FR1550138
    申请日:2015-01-08
    公开日:2015-07-17
    发明作者:Sakai Yagi；Jun Mukunoki；Takuya Takeda
    申请人:Dai Ichi Seiko Co Ltd；
    IPC主号:
    专利说明:

    [0001] BACKGROUND OF THE INVENTION FIELD OF THE INVENTION The invention relates to a locking arm provided in an electrical connector for connecting the electrical connector to another connector. electrical, and further to an electrical connector comprising the locking arm, to be used for electrical connection between devices provided in an automobile or different industrial machines. DETAILED DESCRIPTION OF THE PRIOR ART Japanese Patent Application Publication No. 2005-135751 discloses an electrical connector comprising a locking arm, a release member formed at a rear end of the locking arm, and a support portion. sufficiently flexible to extend in a forward-to-back direction between the locking arm and a female housing. In the electrical connector, the locking arm is connected to the support portion at a location closer to a front end of the support portion than at a rear end of the support portion, so that the locking arm and the support portion may be disposed in a smaller space above the female housing relative to an electrical connector having a locking arm connected to a support portion at a location closer to a rear end of the housing portion. support only from a front end of the support portion, and the female connector can thus be miniaturized. Japanese Patent Application Publication No. 2013-30323 discloses an electrical connector comprising a locking arm, an engagement hook to be engaged with an engagement hole formed at a connector housing, and a connector member. locking release for releasing the engaging hook from the engagement hole 5 when the locking arm is pushed towards the rear of the housing beyond the engagement hook, a fulcrum located closer to one end rearward which is positioned closer to the engagement hook than a fulcrum located at a forward end in a direction opposite to a direction in which the engagement hook extends. Fig. 8A illustrates an example of a conventional locking arm formed on an upper surface of a female housing. The conventional locking arm 51 illustrated includes a lock arm body 52, a front lug 53 supporting a leading edge of the lock arm body 52, a rear leg 54 supporting a rear end of the lock arm body 52 on the upper surface of a female housing 50, a latch 55 to be locked with a blocking unit of a male housing (not shown), and a release member 56 for releasing the lock 55 from the lock of the male housing. In the locking arm 51 illustrated in FIG. 8A, the release member 56 is pushed downward to release the latch 55 from the locking unit of the male housing. Thus, as shown in FIG. 8B, the lock arm body 52 is deformed with the front leg 53 and the rear leg 54 all of which act as fulcrums. As shown in FIG. 8C, the lock arm body 52 is deformed until the lock arm body 52 comes into contact at a bottom surface thereof with an upper surface of the housing. female 50, with the result that the latch 55 is released from the blocking unit of the male housing. In the conventional locking arm 51, since the lock arm body 52 is deformed only by a force exerted on the release member 56, it is necessary to move the release member 56 down a large amplitude to release the latch 55 of the blocking unit of the male housing. Therefore, the conventional locking arm 51 has a problem in that a large space is required between the lower surface of the lock arm body 52 and the upper surface of the female housing 50, which increases the height of the electrical connector comprising the conventional locking arm 51.
    [0002] SUMMARY OF THE INVENTION Because of the above-mentioned problem in the conventional locking arm, it is an object of the present invention to provide a locking arm capable of releasing a lock by causing a release member to move. only a short distance. It is another object of the present invention to provide an electrical connector comprising the locking arm mentioned above. In one aspect of the present invention there is provided a locking arm formed on a second housing to be mounted in a first housing comprising a locking unit, the locking arm comprising a locking arm body extending in a first direction. wherein the second housing is inserted into the first housing, the lock arm body being resiliently deformable in a second direction perpendicular to the first direction, a first bracket connecting the lock arm body at an end of said housing to second housing such that a gap is formed between the lock arm body and a surface of the second housing, a second leg connecting the lock arm body at the other end to the second housing so that the space is formed between the locking arm body and the surface of the second housing, a locking portion to be locked on the unit when the second housing is inserted into the first housing, and an extension extending obliquely from the locking arm body in a direction away from the surface of the second housing, wherein, when the extension is pushed to the locking arm body, the locking arm body is deformed, the first and second tabs then acting as fulcrums, and then the extension comes into contact at a distal end with the body of the locking arm. locking arm, and then the locking arm body is deformed, the first and second legs then acting as fulcrums and further a stop point acting as a working point to thereby allow the blocking from being released from the blocking unit of the first housing, the extension and the locking arm body contacting each other at the stop point. In the locking arm according to the present invention, when the extension is pushed towards the locking arm body, the locking arm body is deformed with the first and second tabs which act as fulcrums, then, the extension comes into contact at a distal end with the lock arm body, and then the lock arm body is deformed with the first and second legs acting as fulcrums and besides with the stop point which acts as a working point. Thus, the blocking portion can move further even if the extension moves a short distance, and therefore the blocking portion can be released from the blocking unit. For example, the second tab may include third and fourth tabs formed at opposite ends in a direction along the width of the second tab. It is preferable that the locking arm further comprises a fifth leg formed between the third and fourth legs.
    [0003] When the extension is pushed toward the locking arm body, then the extension comes into contact with the lock arm body, and then the lock arm body is deformed with the first and second legs acting as support points and further with the stop point acting as a working point, the locking arm body can be prevented from being deformed at a rear end and at a center in a direction according to the width thereof, and therefore, the locking portion can be moved a desired distance. It is preferable that the fifth leg is at a center between the third and fourth legs. It is preferred that the lock arm 25 further comprises a plurality of fifth legs formed between the third and fourth legs. It is preferable that a gap between a distal end of the extension and the lock arm body is smaller than the space between the lock arm body and the surface of the second housing. In another aspect of the present invention, there is provided an electrical connector comprising a housing to be mounted in a first housing comprising a locking unit, and a locking arm formed on an upper surface of the housing, the locking arm consisting of one of the locking arms mentioned above. The advantages obtained by the present invention mentioned above will be described below.
    [0004] The locking arm according to the present invention makes it possible to release the blocking part of the blocking unit by causing the extension to move only a short distance, and consequently makes it possible to manufacture an electrical connector with a reduced height. . By designing the lock arm to further include the fifth leg formed between the third and fourth legs, it is possible to prevent the lock arm body from being deformed at a rear end at a center in a direction according to the width thereof, and the locking portion can be moved to a desired distance. It is thus possible to release the blocking portion of the blocking unit by causing the extension to move only a short distance. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a sectional view of an electrical connector including a female connector in which a lock arm according to a preferred embodiment of the present invention is made. Figure 2 is a perspective view of a female housing shown in Figure 1. Figure 3 is a right side view of the locking arm according to the preferred embodiment of the present invention. Figure 4 is a rear view of the locking arm. Figure 5 is a rear view of a locking arm according to a variant of the embodiment.
    [0005] Fig. 6A is a sectional view illustrating that a male connector is being mounted in the female connector. Fig. 6B is a sectional view illustrating that the male connector is being mounted in the female connector. Fig. 6C is a sectional view illustrating that the male connector has been mounted in the female connector.
    [0006] Figure 7A is a view of the right side of the locking arm in a condition such that the male connector is mounted in the female connector. Figure 7B is a right side view of the lock arm in a first downward thrust stage.
    [0007] Figure 7C is a view of the right side of the locking arm in a second downward thrust stage. Figure 8A is a right side view of a conventional locking arm. Figure 8B is a right side view of the conventional locking arm which is pushed down. Figure 8C is a right side view of the conventional locking arm which has been pushed down. DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. 1 is a sectional view of an electrical connector comprising a locking arm according to a preferred embodiment of the present invention, FIG. 2 is a perspective view of an illustrated interior housing. Fig. 3 is a right side view of the locking arm according to a preferred embodiment of the present invention, and Fig. 4 is a rear view of the locking arm. In FIG. 1, an electrical connector 1 comprises a male connector 1M and a female connector 1F in which the male connector 1M is mounted.
    [0008] The male connector 1M comprises an outer casing 10 as a male casing, and a plurality of male metal terminals 12. The outer casing 10 comprises a cover 11 having a rectangular section and opening towards the female connector 1F. The male metal terminals 12 protrude to the female connector 1F in the cover 11. A blocking unit 13 is formed on an inner surface of an upper wall of the cover 11 at one end closer to the female connector 1F. The blocking unit 13 protrudes from the cover 11 in a direction along the width (a direction perpendicular to a plane defined by FIG. 1) of the outer casing 10. The female connector 1F comprises an inner casing 20 having a rectangular cross-section, as shown in FIG. female housing, and a plurality of female metal terminals 30 (see Figure 1) housed in the inner housing 20 to be electrically connected to the male metal terminals 12. The inner housing 20 is mounted in the cover 11 of the outer housing 10.
    [0009] In the description, the term "front" refers to the front (on a left side in FIG. 1) of a direction 40 in which the inner case 20 is mounted in the cover 11 of the outer case 10, and the "back" expression refers to the rear (on a right side in FIG. 1) of the direction 40. As illustrated in FIGS. 1 and 2, the inner case 20 is formed in one piece with a locking arm 21 on an upper surface 20a (a surface facing the locking unit 13 of the outer casing 10). As shown in FIG. 3, the locking arm 21 comprises a locking arm body 22 in the form of a plate extending in a direction along the length of the inner casing 20, a front tab 23 supporting an edge front of the lock arm body 22 on the inner housing 20, a rear leg 24 supporting a rear edge of the lock arm body 22 on the inner housing 20, a locking portion 25 to be locked with the lock unit 13 of the outer casing 10, and a release member 26 for releasing the locking portion 25 of the locking unit 13 of the outer casing 10. The locking arm body 22, the front leg 23, the rear leg 24, blocking portion 25, and the release member 26 are integrally formed on the inner housing 20. The locking arm body 22 is supported by the front and rear legs 23 and 24 above the upper surface. 20a of the inner housing so as to create a gap G1 between the lock arm body 22 and the upper surface 20a of the inner housing 20. The locking portion 25 protrudes upwardly from the lock arm body 22 between the front leg 23 and the release member 26. The locking portion 25 has an inclined front surface 25a extending obliquely and rearwardly from an upper surface of the lock arm body 22, and a rear surface 25b standing vertically relative to at the upper surface of the locking arm body 22. The release member 26 is at the rear of the locking portion 25, and extends obliquely in a direction away from the inner case 20. More precisely the release member 26 extends obliquely rearward, that is to say towards the rear leg 24. The front leg 23 protrudes downwardly from the front edge of the locking arm body 22. The front leg 23 is connected at a lower end greater than the upper surface 20a of the inner housing 20 at a forward end of the inner housing 20. The locking arm body 22 tilts upwardly between the front leg 23 and the locking portion 25, and extends parallel to the upper surface 20a of the inner housing 20 between the locking portion 25 and the rear leg 24.
    [0010] The rear leg 24 comprises a vertical portion 24a rising vertically at a rear end of the inner housing 20 from the upper surface 20a of the inner housing 20, and an extending portion 24b extending horizontally forwardly from an upper end of the vertical portion 24a. As shown in FIG. 4, the rear leg 24 comprises a left leg 27a and a right leg 27b located at opposite ends in a direction along the width of the rear leg 24.
    [0011] Each of the left leg 27a and the right leg 27b is composed of the vertical portion 24a and the extension portion 24b mentioned above. The lock arm body 22 is supported at a front end by the front tab 23 on the inner housing 20, and at a rear end by the vertical portion 24a of the rear leg 24 on the inner housing 20. and is elastically deformable vertically, i.e., in a direction perpendicular to the upper surface 20a of the inner housing 20 with the front leg 23 and the vertical portion 24a both acting as fulcrums. Not only the locking arm body 22, but also the extension portion 24b of the rear leg 24 can be elastically deformable.
    [0012] The release member 26 includes a pair of extensions 28a and 28b (see Fig. 2) extending obliquely and rearwardly from the upper surface of the lock arm body 22, and a finger contact 29 which is in the form of a horizontal plate and connecting the upper ends of the extensions 28a and 28b to each other. The finger contact 29 is above the extension portion 24b of the rear leg 24 with a gap G2 therebetween (see Figure 3).
    [0013] When the male connector 1M is mounted in the female connector 1F, as shown in Fig. 6A, the inner case 20 is mounted in the cover 11 through the back of the outer case 10. When the blocking portion 25 of the case 20 is abutting on the locking unit 13 of the outer casing 10 in order to further push the locking portion 25, the locking arm body 22 is elastically deformed downwards at a central portion, as is illustrated in FIG. 6B, and the locking portion 25 of the inner housing 20 is thus lowered below the locking unit 13 of the outer housing 10. As shown in FIG. 6C, when the locking portion 25 passes above the blocking unit 13, the locking arm body 22 returns to its original shape shown in FIG. 6A, and therefore the locking portion 25 of the inner case 20 is engaged or blocked with the locking unit. blocag e 13 of the outer housing 10. When the female connector 1F is released from the male connector 1M, the finger contact 29 is pushed down. As a result, the lock arm body 22 is deformed with the front leg 23 and the vertical portion 24a of the rear leg 24 which both act as fulcrums, and thus, as illustrated in FIG. 7B, the finger contact 29 comes into contact at a lower surface with the extension portion 24b of the rear leg 24 (a first downward push stage). The finger contact 29 comes into contact with the extension portion 24b at an abutment point 31.
    [0014] Then, as shown in Fig. 7C, the lock arm body 22 is deformed with the front leg 23 and the vertical portion 24a both acting as fulcrums and further with the stop point 31. which acts as a working point (a second stage of pushing down). Thus, the locking portion 25 is released from the locking unit 13 of the outer casing 10. While the locking portion 25 is kept free of the locking unit 13, the female connector 1F is removed from the male connector 1M. As has been explained so far, the lock arm body 22 is deformed first at the first push down stage, and then at the second push down stage. Specifically, the lock arm body 22 is deformed in such a manner that the front leg 23 and the vertical portion 24a of the rear leg 24 both act as fulcrums at the first push stage to the low, and then further deformed in such a manner that the front leg 23 and the vertical portion 24a act as fulcrums and the stop point 31 further acts as a work point in the second push stage down. Thus, the blocking portion 25 can move a greater distance due to a smaller displacement of the release member 26 compared to the conventional locking arm 51 illustrated in FIGS. 8A-8C, making that the locking portion 25 can be released from the locking unit 13 of the outer housing 10. Since the locking portion 25 can be released from the locking unit 13 with the small displacement of the release member 26, It is possible to design the electrical connector 1 with reduced height. The rear leg 24 in the present embodiment is adapted to include the left leg 27a and the right leg 27b located at opposite ends of the rear leg 24 in a widthwise direction of the rear leg 24. When the locking arm 21 is designed to have an increased width, the rear leg 24 may be designed to further include an intermediate leg 27c between the left leg 27a and the right leg 27b, as shown in Figure 5, in which case, since the rear leg 24 is supported on the upper surface 20a of the inner housing 20 by the left leg 27a, the right leg 27b and the intermediate leg 27c, when the locking arm body 22 is deformed in such a manner that the front leg 23 and the vertical 24a act as fulcrums and furthermore the stop point 31 acts as the working point in the second downward pushing stage, the lock arm body 22 is fished at a rear end and at a central portion in a width direction of the lock arm body 22. Therefore, it is possible to securely move the locking portion 25 to to be released from the locking unit 13 by a small movement of the finger contact 29. The intermediate leg 27c is preferably at a center between the left leg 27a and the right leg 27b. It should be noted that the intermediate portion 27c may be located in any location between the left leg 27a and the right leg 27b. The locking arm 21 may comprise a plurality of intermediate tabs 27c between the left leg 27a and the right leg 27b. Blocking portion 25 may not be a projection. The blocking portion 25 may be any recess able to be co-operated with the blocking unit 13 of the outer casing 10.
    [0015] It is preferred that the gap G2 (see Fig. 3) between a distal end of the extensions 28a, 28b and the lock arm body 22 is smaller than the gap G1 (see Fig. 3) between the arm body 22 and the surface 20a of the second housing 20. By designing the gap G2 smaller than the gap G1, the lock arm body 22 can easily be deformed, first at the first pushdown stage, and then at the second stage of pushing down.
    [0016] INDUSTRIAL APPLICATION The locking arm according to the present invention is adapted to an electrical connector used for making an electrical connection between devices provided in an automobile and / or an industrial machine.
    权利要求:
    Claims (7)
    [0001]
    REVENDICATIONS1. Locking arm (21) formed on a second housing (20) to be mounted in a first housing (10) including a locking unit (13); the locking arm (21) comprising: a lock arm body (22) extending in a first direction (40) in which the second housing (20) is inserted into the first housing (10), the arm body locking member (22) being elastically deformable in a second direction perpendicular to the first direction (40); a first tab (23) connecting the lock arm body (22) at one end of said body to the second housing (20) such that a gap (G1) is formed between the lock arm body ( 22) and a surface (20a) of the second housing (20); a second tab (24) connecting the lock arm body (22) at the other end to the second housing (20) so that the gap (G1) is formed between the lock arm body (22); ) and the surface (20a) of the second housing (20); a blocking portion (25) to be locked on the blocking unit (13) when the second case (20) is inserted into the first case (10); and an extension (28a, 28b) extending obliquely from the lock arm body (22) in a direction away from the surface (20a) of the second housing (20), wherein, when the extension (20a) 28a, 28b) is pushed towards the locking arm body (22), the locking arm body (22) is deformed, the first and second legs (23, 24) then acting as fulcrums, then the extension (28a, 28b) comes into contact at a distal end with the lock arm body (22), and then the lock arm body (22) is deformed, the first and second legs (23) , 24) then acting as fulcrums and further a stop point (31) acting as a working point to thereby allow the blocking part (25) to be released from the blocking unit ( 13) of the first housing (10), the extension (28a, 28b) and the locking arm body (22) coming into contact with each other at the stop point (31).
    [0002]
    The locking arm (21) according to claim 1, wherein the second tab (24) comprises third and fourth tabs (27a, 27b) formed at opposite ends in a width direction (41) of the second tab (24). leg (24).
    [0003]
    3. Locking arm (21) according to claim 2, further comprising a fifth leg (27c) formed between the third and fourth tabs (27a, 27b).
    [0004]
    4. Locking arm (21) according to claim 3, wherein the fifth leg (27c) is at a center between the third and fourth tabs (27a, 27b).
    [0005]
    The locking arm (21) of claim 2, further comprising a plurality of fifth legs (27c) formed between the third and fourth legs (27a, 27b).
    [0006]
    The locking arm (21) according to any one of claims 1 to 5, wherein a gap (G2) between a distal end of the extension (28a, 28b) and the lock arm body (22) is smaller than the gap (G1) between the lock arm body (22) and the surface (20a) of the second housing (20).
    [0007]
    An electrical connector (1F) comprising: a housing (20) to be mounted in a first housing (10) including a blocking unit (13); and a locking arm (21) formed on an upper surface (20a) of the housing (20), the locking arm (21) being composed of the locking arm (21) defined in any one of claims 1 to 6.
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    同族专利:
    公开号 | 公开日
    CN104779481A|2015-07-15|
    FR3016483B1|2018-04-20|
    US9312635B2|2016-04-12|
    DE102015200058A1|2015-07-16|
    CN104779481B|2017-10-17|
    US20150200486A1|2015-07-16|
    引用文献:
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    US5254014A|1991-02-12|1993-10-19|Yazaki Corporation|Male connector|
    JP2005135751A|2003-10-30|2005-05-26|Sumitomo Wiring Syst Ltd|Connector|
    JP2013030323A|2011-07-27|2013-02-07|Yazaki Corp|Connector|
    JPS6163782A|1984-09-04|1986-04-01|Mitsuboshi Sangyo Co Ltd|Water-proof base material|
    JPS6163782U|1984-10-01|1986-04-30|
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    US6364685B1|2000-11-03|2002-04-02|Randy Marshall Manning|Connector with articulated latch|
    JP5434786B2|2010-05-14|2014-03-05|住友電装株式会社|connector|US9318836B2|2014-02-06|2016-04-19|Dai-Ichi Seiko Co., Ltd.|Electric connector|
    US9875647B1|2015-04-27|2018-01-23|Google Inc.|Systems and methods for presenting security questions via connected security system|
    JP6729273B2|2016-10-12|2020-07-22|株式会社オートネットワーク技術研究所|Connector structure|
    JP6729274B2|2016-10-12|2020-07-22|株式会社オートネットワーク技術研究所|Connector structure|
    JP6729272B2|2016-10-12|2020-07-22|株式会社オートネットワーク技術研究所|Connector structure|
    JP6509177B2|2016-10-12|2019-05-08|株式会社オートネットワーク技術研究所|Connector structure|
    JP6811654B2|2017-03-14|2021-01-13|日立オートモティブシステムズ株式会社|connector|
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    法律状态:
    2015-12-28| PLFP| Fee payment|Year of fee payment: 2 |
    2016-12-12| PLFP| Fee payment|Year of fee payment: 3 |
    2017-10-20| PLSC| Search report ready|Effective date: 20171020 |
    2017-12-08| PLFP| Fee payment|Year of fee payment: 4 |
    2019-12-31| PLFP| Fee payment|Year of fee payment: 6 |
    2021-01-21| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2014003681A|JP5692421B1|2014-01-10|2014-01-10|Electrical connector|
    JP2014-003681|2014-01-10|
    JP2014021522A|JP5708837B1|2014-02-06|2014-02-06|Connector terminal|
    JP2014-021522|2014-02-06|
    JP2014-045426|2014-03-07|
    JP2014-045428|2014-03-07|
    JP2014045428A|JP5737446B1|2014-03-07|2014-03-07|Electrical connector mating structure|
    JP2014045426A|JP5708854B1|2014-03-07|2014-03-07|Electrical connector|
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