• 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:
    The present invention relates to a connector housing (10) (1) whose device (2), termed terminal position assurance (TPA), mounted sliding inside the housing, transversely to its axis is activated only by the insertion of a cable terminal (3) whose body unlocks one or more flexible tabs (21) of the TPA previously in abutment against the housing.
    公开号:FR3088491A1
    申请号:FR1860421
    申请日:2018-11-12
    公开日:2020-05-15
    发明作者:Mathieu DUPONT；Remi Duprez
    申请人:Raydiall；
    IPC主号:
    专利说明:

    CONNECTOR HOUSING HAVING IMPROVED CABLE TERMINAL POSITION ASSURANCE (TPA)
    Technical area
    The present invention relates to connectors in the field of electrical and / or data transmission connectors.
    It relates more particularly to cable terminal position assurance (TPA) devices.
    The invention applies more generally to any type of connection for the transmission of electrical signals and / or data and / or radio frequency (RF) signals.
    An interesting application is connector technology for motor vehicles.
    Prior art
    In the field of connection for transmitting electrical signals and / or data and / or radio frequency (RF) signals, it is known that electrical, fiber optic and other connections are made using two connectors interlocking, usually in the form of male and female connectors coupled together.
    Each male or female connector has electrical contacts, optical fibers, or other conductors mutually located and configured to provide a connection therebetween when the male and female connectors are mated to each other.
    More specifically, each male or female connector comprises a box in which is mounted and fixed a cable terminal (“Terminal” in English language).
    A general specification in the field of connectors is to ensure that when the electrical cable terminal is correctly housed / positioned in the cavity of the box dedicated to it and locked, the terminal cannot be inadvertently unlocked during assembly initial connection or by accident during use. For example following shocks and / or vibrations, one of the terminals could disengage and dislodge from its case without it being visible outside the connected boxes.
    Ultimately, this can cause malfunctions by breaking the signal (s) to be transmitted between the connectors or during the use of the connector.
    Failures of this type are of particular concern in the automotive industry where electrical / optical / data communications components are subjected to almost continuous shock and / or vibration during normal use.
    To avoid these problems, it is known, more particularly in the automobile industry, to equip a connector, with a terminal assurance device (TPA acronym for “Terminal Position Assurance”) to secure the locking of the terminals in the connectors and prevent inadvertent disconnection.
    A TPA device performs the function of securing the locking of a cable terminal in a housing. When the terminal is housed and locked in its case, the TPA is moved from its locking standby position to its active terminal locking securing position.
    The major drawback of existing TPA devices is that they can be put in their active position in the case even if no terminal is actually mounted in the case.
    On the other hand, the function of a TPA also consists in preventing any connection with a complementary connector, when the TPA is not in the active position, any attempt to couple a complementary connector housing failing due to the presence of a dedicated part at the front of the TPA against which the complementary connector box abuts.
    However, the current TPAs can be put in the active securing position, even in the absence of a terminal in the box.
    There is therefore a need to improve the solutions for securing the locking of a cable terminal in a connector housing by a TPA device, in particular in order to overcome the aforementioned major drawback.
    The object of the invention is to meet this need at least in part.
    Statement of the invention
    To do this, the invention relates to a connector housing, intended to be coupled with a complementary connector housing, and to house a cable terminal, the housing extending along a longitudinal axis (X) and comprising:
    - a body comprising at least a first housing which extends transversely to the axis X;
    - a device, called terminal position assurance (TPA), mounted to slide transversely to the X axis inside the housing between a locking standby position and an active locking securing position between the terminal cable and the connector housing, the TPA device comprising at least one flexible tab configured to be:
    • blocked against the body of the housing in a standby position, when no cable terminal is inserted in the housing, • deflected by the terminal conductor, when it is inserted in the connector housing.
    Preferably, the flexible tab is further configured to be locked inside the first housing of the housing body when the TPA is in its active position.
    According to an advantageous alternative embodiment, the flexible tab is suitable for, when it is locked in its standby position, not allowing the TPA device to slide towards its active position if no terminal insertion is made in the housing. .
    In other words, the invention consists in defining a connector whose TPA mounted sliding inside the box, transverse to its axis is activated only by the insertion of a cable terminal whose body comes to unlock one or more flexible tabs TPA previously in abutment against the housing.
    Thus, the solution according to the invention makes it possible to prevent any activation of the TPA if no cable terminal is inserted in the box equipped with the TPA, and consequently the connection between two complementary connectors.
    In other words, a TPA according to the invention can only be activated on condition that the terminal is actually housed in its case.
    Consequently, the connection between two complementary connectors can only be made if the two terminals are correctly inserted in the receptive boxes of this pair of complementary connectors.
    The TPA according to the invention therefore provides additional security compared to TPA according to the state of the art.
    According to an advantageous embodiment, the flexible tab is arranged such that it projects at least partially into the central passage of the housing when it is in its standby position and that it is housed entirely in the wall of the housing in active position.
    Advantageously, the flexible tab is suitable for, when it is locked in its standby position, not allowing the TPA device to slide towards its locking position if no terminal insertion is made in the housing.
    Preferably, each flexible tab comprises a chamfer at its free end, adapted to facilitate the insertion of the conductor into the housing.
    According to an advantageous embodiment:
    - The housing body includes at least two retaining and locking lugs;
    - The TPA device comprises at least two retaining and locking tabs each provided with at least one opening adapted to cooperate with one of the lugs so as to retain the TPA device to the housing both in its standby position and its position active.
    According to another advantageous embodiment:
    - The body comprises at least a second housing, said locking housing;
    - The TPA device comprises at least one locking protuberance adapted to come and be housed in the second housing and jam the conductor in the TPA locking position.
    The invention also relates to a connector comprising:
    - a connector housing fitted with a TPA device as described above;
    - an electric cable terminal housed and locked in the body of the box by means of the TPA device.
    According to an advantageous embodiment, the connector comprises a so-called connector position assurance device (CPA), adapted to secure the locking of a complementary connector coupled to the connector.
    The subject of the invention is also a method of mounting a cable terminal in a connector as described above, comprising the following steps:
    a / insertion of the terminal so as to cause the deflection of the at least one flexible tab and thus release the TPA device from its standby position;
    b / once the terminal is positioned in its connection position, displacement in translation transverse to the X axis of the TPA device released from its standby position, so as to secure the locking of the terminal in the housing.
    detailed description
    Other advantages and characteristics of the invention will emerge more clearly on reading the detailed description of examples of implementation of the invention made by way of illustration and not limitation, with reference to the following figures among which:
    - Figure 1 is a perspective view of an example of a female connector housing equipped with a TPA device according to the invention in its standby position. ;
    - Figure 2 is a perspective view of a connector with a female housing equipped with its TPA device according to Figure 1 and in which is mounted and locked with locking a cable terminal thanks to the TP A device;
    - Figure 3 is another perspective view of the female housing according to Figure 1, with the TPA device in the standby position;
    - Figure 3 A is a cross-sectional view of the housing with its TPA device according to Figure 3;
    - Figure 4 is a perspective view of an example of a male connector housing equipped with a TPA device according to the invention in the standby position, this male housing being intended to be coupled and locked to the female housing according Figures 1 to 3 A;
    - Figures 5 and 6 are perspective views of a TPA device according to the invention;
    - Figures 7A to 7D are perspective views and in cross section showing the different stages of mounting a cable terminal in a female connector housing with the operation of a TPA device according to the invention;
    - Figure 8 is a perspective view of a connector with a female housing in which is mounted and locked with locking a cable terminal through the TPA device;
    - Figures 9A and 9B are views in longitudinal section of a connector showing certain steps of mounting a cable terminal in a female connector housing with the operation of a TPA device according to the invention;
    - Figures 10A to 10C are views in longitudinal section of a connector provided with a TP A device according to the invention, showing the locking of a cable terminal in a female connector housing.
    It is specified here throughout the present application, the terms "lower", "upper", "above", "below", "interior", "exterior", "" internal "," external "are to be understood by reference to a connector according to the invention in a configuration substantially horizontal.
    As illustrated in FIGS. 1 and 2, a connector 1 of the female type according to the invention comprises a box 10 with a body which houses a terminal 3 of electrical and / or data cable which is held and locked by means of a removable device 2, called terminal position insurance ("Terminal Position Assurance" in English, acronym TPA). Another device 4 known as connector position assurance (“Connector Position Assurance”) is slidably mounted in the housing 10. The CPA device is not compulsory and the TPA device can be alone present.
    The CPA 4 device is described and claimed in the patent application entitled “Connector housing equipped with an improved connector position assurance device (CPA)”, filed in the name of the applicant, on the same day as the present application .
    The conductor 30 of the terminal 3 is intended to be connected by coupling with a conductor 20 of a complementary connector 2, by the front face 11 of the housing body 10. The conductor 30 is held inside a barrel 100 at within the connector housing 10.
    In the active position of the TPA device 2, the body 31 of the terminal 3 is locked inside the housing 10 and the cable 32 of the terminal emerges from the body of the housing 10 through its rear face 12.
    The body 31 of the terminal 3 includes a locking lug 33 which projects outside.
    FIG. 4 illustrates a male box 50, complementary to the female box 10 with its removable device TPA 2 in the standby position.
    In the active position of the TP A 2 device, the body 31 of a terminal 3 is locked and secured inside the housing 50 and the cable 32 of the terminal emerges from the housing 50 through its rear face 52.
    As illustrated in Figures 1 to 4, the body of the housing 10, 50 comprises retaining and locking lugs 13 coming from molding.
    These retaining and locking pins 13 are adapted to cooperate by snap-fastening with the flexible tongues 22 of the TPA device 2 on the one hand to retain the latter on the housing 10, 50 in its locking waiting position and on the other hand to retain it and lock it in its active locking securing position.
    The housing body 10, 50 also includes first housings 14, in the form of grooves opening towards the outside, adapted to accommodate the flexible tabs 21 of the TPA 2 in its active position, as well as a second housing also open on the exterior adapted to accommodate the abutment projection 23 of the TPA, as detailed below.
    The TPA 2 device, made in one piece, is mounted in the housing 10, between a standby position and an active position, as explained below.
    The TPA device 2, essentially comprises a head 20 with a manual support zone.
    Two flexible legs 21, preferably identical, are connected to the head 20, on either side and at the front end thereof. As explained, these flexible tabs 21 have the function of locking the TPA device 2 in translation against the casing 10 in its unlocking standby position.
    Two flexible tongues 22, preferably identical, are also connected to the head 20 on either side and at the rear end thereof. Each of these tabs 22 includes two openings 220 corresponding either to the standby position or to the active position. These retaining and locking openings 220 are each adapted to snap around a retaining and locking lug 13 of the housing 10, so as to retain the TPA device 2 both in its waiting position and locking and locking it to the housing 10.
    A description will now be given with reference to FIGS. 7A to 7D, the various stages of connection with locking by the TPA device 2, of a cable terminal 3 in a housing 10 of female connector 1 according to the invention.
    Step a /: We just put a cable terminal 3 on the rear side 12 of a connector housing 10. In this approach phase, the TPA 2 device is in the locking standby position (FIG. 7A). The openings 220 are snapped around the retaining pins 13 on the top of the housing 10, and thus retain the TPA device 2 in this standby position, which is the most distant position from the housing 10.
    In this waiting position, the abutment protrusion 23 prevents any coupling of the complementary connector housing.
    Step b /: We translate the terminal 3 to insert it inside the box 10, as symbolized by the black arrow in FIG. 7B.
    In this phase of beginning of insertion, the legs 21 have a position close to one another and are in abutment against a part of the barrel 100 of the case (FIG. 7B). In the example illustrated, the barrel parts 100 which have the stop function are each in the form of a flat.
    Thus, the TPA device 2 is blocked, that is to say that the tabs 21 in abutment prevent any unwanted translation of the latter (FIG. 7B).
    Step c /: By continuing to insert the terminal 3 into the housing 10, the end of the conductor 30 deflects the tabs 21 outward, which position them each opposite a groove 14 (FIG. 7C ). In this phase, the translation of the TPA 2 device is therefore possible transverse to the X axis (Figure 7C).
    Step d /: Once the conductor 30 has reached its final position in the barrel 100 of the housing 10, it can be locked (FIG. 7D).
    Thus, we then end by moving in translation, transversely of the TPA device 2 by manual support on the surface 20 provided for this purpose. The translation in the direction of the black arrow in FIG. 7D makes it possible to bring the abutment protrusion 23 into the housing 15.
    Simultaneously, the tabs 21 are completely housed in the housings 14 (FIG. 7D).
    The openings 220 are snapped around the retaining pins 13 on the bottom of the housing 10, and thus retain and lock the TPA device 2 in this active position, which is the position closest to the housing 10.
    Thus, the TPA device 2 secures the locking of the cable terminal 3 in the housing 10 (FIG. 8). Also in this locking position, the TPA device 2 is in mechanical abutment against the housing 10 (FIG. 8).
    FIGS. 9A and 9B show the function of the chamfers 210 formed at the end which facilitate the insertion of the conductor 30 into the housing 10, the latter then drawing aside the flexible tabs 21 from its passage in the barrel 100 of the housing.
    FIGS. 10A to 10C show the locking of the terminal 3 in the connector housing 10, before the activation of a TPA device 2 according to the invention.
    When connecting, the locking lug 33 deflects the holding tab 16 of the terminal 3, produced in the housing (FIG. 10B).
    As long as the locking lug is not housed in the locking housing 17 dedicated to this (FIG. 10C), it is not possible to lock the TPA because the tongue 16 remains deflected.
    Other variants and advantages of the invention can be achieved without departing from the scope of the invention.
    Thus a single tab 21 can be envisaged, as a single tab 22. In this case, it is preferable that they are on opposite sides to limit any rotation of the TPA.
    A TPA device in accordance with the invention can equip a female type housing as well as a male type housing.
    In an advantageous variant, the TPA in the active position has no surface projecting from the surface of the housing.
    It is conceivable to have the retaining and locking lugs 13 carried by the TPA device while complementary grooves are made in the housing.
    The invention is not limited to the examples which have just been described; one can in particular combine together characteristics of the examples illustrated within variants not illustrated.
    权利要求:
    Claims (9)
    [1" id="c-fr-0001]
    1. connector housing (10; 50) (1; 5), intended to be coupled with a housing (50; 10) of complementary connector (5; 1) and to house a cable terminal (3), the housing s 'extending along a longitudinal axis (X) and comprising:
    a body (10; 50) comprising at least a first housing (14; 54) which extends transversely to the axis X;
    - a device (2), called terminal position assurance (TPA), slidingly mounted transversely to the X axis inside the housing between a locking standby position and an active locking securing position, between the cable terminal (2) and the connector housing, the TPA device comprising at least one flexible tab (21,210) configured to be:
    • blocked in the body of the housing in a standby position, when no cable terminal (3) is inserted in the housing, • deflected by the conductor (30) of the terminal (3), when it is inserted into the connector housing.
    [2" id="c-fr-0002]
    2. connector housing (10; 50) (1; 5) according to claim 1, the flexible tab (21, 210) being arranged so that it projects at least partially into the central passage (100) of the housing when 'it is in its standby position and it is housed entirely in the wall of the case in the active position.
    [3" id="c-fr-0003]
    3. connector housing (10; 50) (1; 5) according to claim 1 or 2, the flexible tab (21, 210) being adapted so that, when it is locked in its waiting position, does not allow the sliding of the TPA device towards its locking position if no terminal insertion (3) is made in the housing.
    [4" id="c-fr-0004]
    4. Housing (10; 50) connector (1) according to one of the preceding claims, each flexible tab (21) comprising a chamfer (21) at its free end, adapted to facilitate insertion of the conductor (30) in the housing (10; 50).
    [5" id="c-fr-0005]
    5. Connector housing (10; 50) according to one of the preceding claims, in which:
    - The body of the housing comprises at least two retaining and locking lugs (13);
    - The TPA device (2) comprises at least two retaining and locking tabs (22) each provided with at least one opening (220) adapted to cooperate with one of the lugs so as to retain the TPA device in the housing at the same time in its standby position and its active position.
    [6" id="c-fr-0006]
    6. Housing (10; 50) of connector (1) according to one of the preceding claims, in which
    the body comprises at least a second housing (15), said locking housing;
    - The TPA device (2) comprises at least one locking protuberance (23) adapted to be housed in the second housing and jam the conductor in the locking position of the TPA (2).
    [7" id="c-fr-0007]
    7. Connector (1; 5) comprising:
    - a connector housing (10; 50) equipped with a TPA device (2) according to one of the preceding claims;
    - a terminal (3) of electric cable housed and locked in the body of the case (10; 50) by means of the TPA device (2).
    [8" id="c-fr-0008]
    8. Connector (1) according to claim 7, comprising a so-called connector position assurance device (CPA) (4) adapted to secure the locking of a complementary connector (5) coupled with the connector (1).
    [9" id="c-fr-0009]
    9. A method of mounting a cable terminal (3) in a connector (1) according to one of claims 7 or 8, comprising the following steps:
    a / insertion of the terminal (3) so as to cause the deflection of the at least one flexible tab (21) and thus release the TPA device (2) from its waiting position;
    b / once the terminal (3) positioned in its connection position, displacement in translation transverse to the axis X of the TPA device (2) released from its standby position, so as to secure the locking of the terminal ( 3) in the housing (10; 50).
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    法律状态:
    2019-10-22| PLFP| Fee payment|Year of fee payment: 2 |
    2020-05-15| PLSC| Publication of the preliminary search report|Effective date: 20200515 |
    2020-10-21| PLFP| Fee payment|Year of fee payment: 3 |
    2021-10-20| PLFP| Fee payment|Year of fee payment: 4 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1860421A|FR3088491B1|2018-11-12|2018-11-12|CONNECTOR BOX EQUIPPED WITH AN IMPROVED CABLE TERMINAL POSITION ASSURANCEDEVICE|FR1860421A| FR3088491B1|2018-11-12|2018-11-12|CONNECTOR BOX EQUIPPED WITH AN IMPROVED CABLE TERMINAL POSITION ASSURANCEDEVICE|
    US16/420,679| US10797427B2|2018-11-12|2019-05-23|Connector housing equipped with an improved cable terminal position assurancedevice|
    CN201910496072.2A| CN111180952B|2018-11-12|2019-06-10|Connector housing equipped with improved cable termination position assurance device|
    EP19207898.8A| EP3651275A1|2018-11-12|2019-11-08|Housing for connector provided with an improved cable terminal position assurance |
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