JP2005259614A - Receptacle connector with latch arm, and plug connector connected to it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a receptacle connector and the plug connector which, while thinning it, keep high holding power of a plug connector in its pulling direction, easily confirm its engagement, and cause no incomplete engagement even when groping for engagement work. <P>SOLUTION: This receptacle connector 100 with a latch arm is equipped with a receptacle connector body 110 having a groove 111 to be inserted with the plug connector 200, a contact 120 provided in the receptacle body, and a pair of latch arms 130 which extends toward one side in the depth direction from two positions spaced in the width direction and which can elastically deform in the width direction, in the receptacle connector body. A pressing part 131 is provided in each latch arm 130, and a guide part 131a, a stationary side locking face 131b, and a stationary side depth locking face 131c, are provided in the pressing part. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  In the present invention, electric wires such as discrete wires, coaxial wires and twisted cables, and flat flexible cables such as FFC (flexible flat cable) and FPC (flexible printed circuit) are used as printed wiring boards and other mating members. The present invention relates to a receptacle connector and a plug connector for connection.

  Patent Document 1 includes an insulator formed in a frame shape and a plurality of contacts fixed to the insulator, and one side wall among a pair of opposing side walls forming a fitting portion with a plug connector. A receptacle connector is disclosed in which a first shell made of metal is formed and the other side wall is integrally formed by the insulator.

Patent Document 2 is a connector having a contact for contacting a connection object, a housing holding the contact, and a latch arm coupled to the housing and holding the connection object by engagement. The latch arm includes a holding part fixedly held by the housing, an engaging part for engaging with the connection object, and an elastically deforming part between the holding part and the engaging part and capable of elastic deformation. And the holding part and the elastically deforming part are made of metal, and the engaging part is a resin.
JP 2001-203447 A JP 2001-351734 A

  When the plug connector is fitted to the receptacle connector of Patent Document 1, the plug connector is held by the receptacle connector due to the friction force generated when the contact presses the plug connector with elastic restoring force in addition to the fitting force between the housings. . Therefore, even if a pulling force is applied to the plug connector, the plug connector is held by the receptacle connector against this. However, when a pulling force exceeding the holding force is applied, the plug connector is pulled out. In particular, when the receptacle connector and the plug connector are made thinner, the contact area between the housings becomes smaller, and the elastic displacement of the contact cannot be increased, so that it is difficult to obtain a sufficient holding force of the plug connector. It is anxious to increase the holding force as much as possible.

  Further, when a plug connector is fitted to such a receptacle connector, it cannot be confirmed whether or not the plug connector can be fitted at a predetermined depth. Therefore, when performing a fitting operation by reaching out to the back side of the object and groping, it is difficult to prevent incomplete fitting from occurring because the fitting cannot be confirmed visually.

  The present invention has been made paying attention to such points, and the object thereof is to provide a receptacle connector with a latch arm extending substantially in the direction of pulling out the plug connector, and to connect the plug connector to the receptacle connector. By inserting it diagonally with respect to the direction of pulling out and then tilting it toward the latch arm so that it engages with the latch arm, the holding force of the plug connector in the pulling direction is high, and it is easy to check the fitting. It is an object of the present invention to provide a receptacle connector and a plug connector that do not cause incomplete fitting even in a groping fitting operation and can achieve these while reducing the thickness.

  To achieve the above object, a receptacle connector with a latch arm according to claim 1 is a receptacle connector with a latch arm that is mounted on a mating member and connects a plug connector connected to an electric wire or a flat flexible cable, and is orthogonal to each other. When the depth direction, the width direction, and the thickness direction are taken, the plug connector is provided in a substantially rectangular shape having two sides in the depth direction and the width direction when viewed from the thickness direction. The contact is exposed on at least one surface of the edge in the thickness direction, and the two parts spaced apart in the width direction have a movable side width locking surface facing outward in the width direction, and in front of the depth direction. The receptacle connector with a latch arm is provided with two lateral walls facing each other in the thickness direction and between the two lateral walls. A receptacle connector body that opens toward the front in the depth direction by a certain vertical wall and has a groove into which an end edge in the depth direction of the plug connector is inserted, and at least a part of which is insulative, and a receptacle connector body In the groove of the receptacle connector, there is a contact portion that can be elastically deformed in the thickness direction and that contacts the contact of the plug connector, and a connection portion that is connected to the mating member, and is provided on the insulating portion of the receptacle connector body. Each of the latches includes a conductive contact and a pair of latch arms that extend from the two portions spaced in the width direction of the receptacle connector body to the front in the depth direction and can be elastically deformed in the width direction. The arm is provided with a pressing part that protrudes inward in the width direction. This pressing part is located on the opposite side to the mating member side in the thickness direction. A guide portion that draws a component force toward the outside in the width direction from the received pressing force, a fixed-side width locking surface facing inward in the width direction corresponding to the moving-side width locking surface of the plug connector, and the plug connector A fixed depth locking surface facing in the depth direction is provided corresponding to the moving depth locking surface.

  When inserting the plug connector into this receptacle connector, hold the plug connector diagonally so that the edge on the front side is farther from the receptacle connector than the edge on the depth side in the depth direction, and hold the edge on the back side in the receptacle. Insert it into the connector groove, and then tilt the front edge closer to the latch arm of the receptacle connector. Then, the bottom surface which is one surface in the thickness direction of the plug connector presses the guide portion of the holding portion of the latch arm, and the guide portion draws a component force toward the outside in the width direction from the pressing force of the plug connector. The latch arm bends outward in the width direction. When the plug connector is further tilted, the front side of the plug connector in the depth direction gets over the latch arm holding part to the mating member side and fits between the two latch arms, and is collapsed by the latch arm holding part restored by elastic restoring force The fixed side width locking surface is in surface contact with the moving side width locking surface of the plug connector, the fixed side depth locking surface is in surface contact with the moving side depth locking surface of the plug connector, and both connectors are mechanical Connected. Further, the contacts come into contact with each other, and a contact pressure between the contacts is secured by an elastic restoring force due to elastic deformation of the contacts, so that both connectors are electrically connected. When removing the plug connector from the receptacle connector, if the latch arm is bent outward in the width direction, the plug connector is released from the restraint of the holding part, and the front side of the plug connector in the depth direction is latch arm by the elastic deformation force of the contact. The plug connector is inclined so that the edge on the near side is farther away from the receptacle connector than the edge on the far side in the depth direction, so that the plug connector can be removed. It becomes.

  In that case, since the fixed-side depth engaging surface and the moving-side depth engaging surface both face in the depth direction are in surface contact with each other, the holding force of the plug connector in the pulling direction, that is, the pulling direction in the depth direction is high. If the plug connector is slanted so that the edge on the near side is farther from the receptacle connector than the edge on the far side in the depth direction, the plug connector does not fit into the receptacle connector and falls down and the two latch arms fall If it fits in between, it will be fitting, and it will be understood whether it is fitting with the attitude | position of a plug connector. In addition, the latch arm is restored by elastic restoring force, the fixed-side width locking surface is in surface contact with the moving-side width locking surface of the plug connector, and the fixed-side depth locking surface is the moving-side depth locking surface of the plug connector. A click feeling is obtained when touching the surface. Therefore, it is easy to confirm the fitting, and incomplete fitting does not occur even if the fitting work is frustrated.

  The receptacle connector with a latch arm according to claim 2 is the receptacle connector with a latch arm according to claim 1, wherein the pressing portion is provided in a substantially rectangular shape having two sides in the depth direction and the width direction when viewed from the thickness direction. A portion inclined to approach the mating member toward the inner side in the width direction is provided on the surface opposite to the mating member side to become a guide portion, or on the inner side in the width direction and on the inner side in the depth direction. The corner is chamfered when viewed from the thickness direction to become a guide part, the end face on the inner side in the width direction of the pressing part becomes the fixed side width locking face, and the end face in the depth direction of the pressing part becomes the fixed side depth locking face. It has become.

  In this way, when the plug connector is inserted into the receptacle connector, if the plug connector is tilted so that the front edge in the depth direction approaches the latch arm of the receptacle connector, the width-direction end of the bottom surface of the plug connector When the edge hits the guide portion of the latch arm of the receptacle connector and the plug connector further falls, the contact portion moves along an inclined portion or a chamfered line of the guide portion. In the meantime, the guide portion draws a component force that is directed outward in the width direction from the pressing force of the plug connector, whereby the latch arm is bent outward in the width direction. When the plug connector is further tilted, the plug connector gets over the holding part of the latch arm and fits between the two latch arms, and is held in a collapsed state by the holding part of the latch arm restored by elastic restoring force. The surface is in surface contact with the moving side width locking surface of the plug connector, and the fixed side depth locking surface is in surface contact with the moving side depth locking surface of the plug connector.

  A receptacle connector with a latch arm according to a third aspect is the receptacle connector with a latch arm according to the first or second aspect, wherein the surface of the receptacle connector main body opposite to the mating member side is provided by a metal cover. The two latch arms are made of metal, and the base ends of the latch arms are integrally provided at both ends in the width direction of the cover.

  In this way, the attachment strength of the latch arm is improved, and the life of the receptacle connector can be extended by sufficiently withstanding repeated insertion and removal of the plug connector. Moreover, the shield function is exhibited by the cover.

  A plug connector according to a fourth aspect is a plug connector connected to the receptacle connector with a latch arm according to any one of the first to third aspects, wherein the depth direction, the width direction, and the thickness direction are orthogonal to each other. Is taken in a substantially rectangular shape with two sides in the depth direction and the width direction when viewed from the thickness direction, and a plate-like plug connector body having insulation properties and a depth side of the plug connector body in the depth direction. A plug having a contact portion exposed on at least one surface in the thickness direction at the edge and a connection portion connected to an electric wire or a flat flexible cable, and provided with a conductive contact; The two parts spaced apart in the width direction of the connector body include a moving side width locking surface facing outward in the width direction and a moving side depth locking surface facing forward in the depth direction. It is provided.

  This plug connector is suitable as a plug connector connected to the receptacle connector according to any one of claims 1 to 3. The connection procedure and operation are as described in claims 1 to 3.

  According to a fifth aspect of the present invention, there is provided the plug connector according to the fourth aspect, wherein concave portions that are recessed in the thickness direction are provided at both ends in the width direction of the plug connector main body and at the front corner in the depth direction. Of the constituting walls, the surface facing the outer side in the width direction is the moving side width locking surface, and the surface facing the front in the depth direction is the moving side depth locking surface.

  In this way, when the plug connector is inserted into the receptacle connector, when the latch arm is bent outward in the width direction and the plug connector is further tilted, the plug connector gets over the holding portion of the latch arm and moves between the two latch arms. The latch arm holding part restored by elastic restoring force enters the recessed part of the plug connector and presses the bottom surface of the recessed part to hold the plug connector in a collapsed state. Comes into surface contact with the moving side width locking surface of the plug connector, and the fixed side depth locking surface of the receptacle connector comes into surface contact with the moving side depth locking surface of the plug connector.

  The receptacle connector according to claim 1 is provided with a latch arm extending substantially in the pulling direction of the plug connector, and the plug connector is inserted into the receptacle connector obliquely with respect to the pulling direction of the plug connector and then tilted toward the latch arm and latched. Since it is engaged with the arm, it is possible to increase the holding power of the plug connector in the pulling direction, and it is easy to check the fitting to ensure incomplete fitting even if it is a fumbling fitting work. These can be prevented and achieved while reducing the thickness.

  According to the second aspect, the guide portion, the fixed-side width locking surface, and the fixed-side depth locking surface can be provided on the latch arm with a simple structure.

  According to the third aspect, the attachment strength of the latch arm is improved, and the life of the receptacle connector can be extended by sufficiently withstanding the repeated insertion and removal of the plug connector. Moreover, a shield function can be obtained by the cover.

  The plug connector according to a fourth aspect is suitable as a plug connector connected to the receptacle connector according to any one of the first to third aspects.

  According to the fifth aspect of the present invention, the plug connector can be provided with the moving-side width locking surface and the moving-side depth locking surface with a simple structure.

  Embodiments of the present invention will be described below. 1 to 17 show an embodiment of a receptacle connector 100 with a latch arm and a plug connector 200 connected to the same according to the present invention. The receptacle connector 100 and the plug connector 200 include an electric wire W such as a discrete wire, a coaxial wire, and a twisted cable, or a flat flexible cable such as FFC and FPC, and a mating member A provided with a conductor as exemplified by a printed wiring board. Used to connect to. Here, a case will be described as an example where a plurality of independent discrete wires are connected to the liquid crystal panel as the counterpart member A, one by one, among the electric wires W.

  First, the receptacle connector 100 will be described. In this case, a depth direction, a width direction, and a thickness direction that are orthogonal to each other are assumed, and description will be made using these orientations. In the case of this embodiment, if it demonstrates in FIG. 3, the up-down direction of a figure is a depth direction, the downward direction of a figure is the near side of a depth direction, and upper direction is the back of a depth direction. 3 is the width direction, and the direction perpendicular to the paper surface is the thickness direction. As shown in FIG. 1 to FIG. 5, this receptacle connector 100 is provided in a receptacle connector main body 110 having at least a part of insulation and a part having conductivity and an insulation of the receptacle connector main body 110. A contact 120 and a pair of latch arms 130 provided on the receptacle connector main body 110 are provided. As shown in FIGS. 16 and 17, the receptacle connector main body 110 includes two horizontal walls 111a and 111b that are opposed to each other in the thickness direction, and a vertical wall 111c that is between the two horizontal walls 111a and 111b. The walls 111a, 111b, and 111c have a groove 111 that opens toward the front in the depth direction.

  As shown in FIGS. 16 and 17, the contact 120 includes a contact portion 121 that can be elastically deformed in the thickness direction in the groove 111 of the receptacle connector main body 110, and a connection portion 122 that is connected to the mating member A. The receptacle connector main body 110 is provided in an insulating portion. The contact 120 is provided by press-fitting, integral molding by casting or the like to the insulating portion of the receptacle connector main body 110, but both may be locked using a housing lance or a contact lance. In this embodiment, the contact portion 121 of the contact 120 is provided so as to protrude into the groove 111 from the side wall 111b closer to the counterpart member A, but the groove from the side wall 111a far from the counterpart member A. You may provide so that it may go out to 111, and you may provide in both the horizontal walls 111a and 111b. In any case, the plug connector 200 to be described later is held obliquely so that the edge on the near side is farther from the receptacle connector 100 than the edge on the far side in the depth direction, and the edge on the far side is the groove of the receptacle connector 100. Then, when the end on the near side is tilted so as to approach the latch arm 130 of the receptacle connector 100, the end on the back side of the plug connector 200 presses the contact 120 in the thickness direction by the principle of the lever. It is configured. In the case of this embodiment, the fulcrum of the insulator is a part of the plug connector 200 that contacts the front edge in the depth direction of the lateral wall 111a far from the mating member A.

  The pair of latch arms 130, 130 extend from the two portions spaced apart in the width direction in the receptacle connector main body 110 to the front in the depth direction. Each latch arm 130 is made of an elastic member and can be elastically deformed in the width direction.

  As shown in FIG. 6, each latch arm 130 is provided with a pressing portion 131 that protrudes inward in the width direction. The holding portion 131 includes a guide portion 131a that draws a component force that is directed outward in the width direction from the pressing force received from the opposite side to the counterpart member side in the thickness direction, and a fixed-side width member that is directed inward in the width direction. A stop surface 131b and a fixed-side depth locking surface 131c facing in the depth direction are provided.

  In the case of this embodiment, the pressing portion 131 is provided in a substantially rectangular shape having two sides in the depth direction and the width direction when viewed from the thickness direction. As shown in FIG. 6, a portion inclined to approach the mating member A toward the inner side in the width direction is provided on the surface opposite to the mating member A side of the pressing portion 131, and the guide portion 131 a is provided. It has become. Further, the end surface on the inner side in the width direction of the pressing portion 131 is a fixed-side width locking surface 131b. Furthermore, the end surface on the depth direction side of the pressing portion 131 is a fixed-side depth locking surface 131c. Furthermore, as shown in FIG. 7, the inner corner in the width direction of the pressing portion 131 and the corner on the back side in the depth direction are chamfered when viewed from the thickness direction to form a guide portion 131 a. In this way, only one of the two types of guide portions 131a may be provided without providing them together.

  In the case of this embodiment, the surface of the receptacle connector main body 110 opposite to the counterpart member A is provided by a metal cover 112. The cover 112 is provided in a substantially rectangular shape having two sides in the depth direction and the width direction when viewed from the thickness direction. Further, the two latch arms 130 are made of metal, and the base ends of the latch arms 130 are integrally provided at both ends of the cover 112 in the width direction. The cover 112 constitutes a lateral wall 111 a of the groove 111 of the receptacle connector main body 110. The cover 112 is fixed to the insulating portion of the receptacle connector main body 110 by press-fitting, integral molding by casting, or the like. The cover 112 is provided with a contact piece 112a as necessary, and contacts the cover 230 of the plug connector 200 when connected to the plug connector 200, which will be described later, so that the covers 112 and 230 are electrically connected. The contact piece 112a is cut and raised from the cover 112, but the structure is not limited thereto. If the receptacle connector body 110 is provided with a metal reinforcing tab that can be mounted on the grounding portion of the mating member A, and this is connected to the cover 112, both covers 112 and 230 are used as the grounding portion of the mating member A. Can be connected. The cover 112 is provided with an outer stopper 112b positioned on the outer side in the width direction of the latch arm 130 and an inner stopper 112c positioned on the inner side in the width direction of the latch arm 130 as necessary. Suppresses excessive deformation to the outside and inside.

  Next, the plug connector 200 connected to the receptacle connector 100 will be described. In this case, a depth direction, a width direction, and a thickness direction that are orthogonal to each other are assumed, and description will be made using these orientations. In the case of this embodiment, if it demonstrates in FIG. 10, the up-down direction of a figure is a depth direction, the upper part of a figure is the near side of a depth direction, and the downward direction is the back of a depth direction. Moreover, the left-right direction of FIG. 10 is a width direction, and the direction perpendicular | vertical to a paper surface is a thickness direction. As shown in FIGS. 8 to 12, the plug connector 200 includes a plate-like plug connector main body 210 having insulating properties, and contacts 220 having conductivity and provided on the plug connector main body 210. .

  The plug connector main body 210 is provided in a substantially rectangular shape having two sides in the depth direction and the width direction when viewed from the thickness direction. As shown in FIG. 12, the end edge of the plug connector main body 210 in the depth direction is preferably provided in a wedge shape so as to become thinner toward the tip when viewed from the width direction, so that the groove 111 of the receptacle connector 100 is provided. Easy to insert into. Thus, the edge may be formed in a wedge shape as necessary.

  The contact 220 has a contact portion 221 exposed at the end of the plug connector main body 210 in the depth direction and a connection portion 222 connected to the electric wire W. The contact 220 is locked to the plug connector main body 210 using a housing lance. However, the contact lance may be used to lock both the contacts 220, or the contact 220 is press-fitted into the plug connector main body 210 and integrated by casting. You may provide by shaping | molding etc.

  The two parts spaced apart in the width direction of the plug connector main body 210 have a moving side width locking surface 211a facing outward in the width direction and a moving side depth locking surface 211b facing forward in the depth direction. Is provided.

  In the case of this embodiment, recessed portions 211 that are recessed in the thickness direction are provided at both ends in the width direction of the plug connector main body 210 and at the front corner in the depth direction. Of the walls constituting the recessed portion 211, the surface facing the outer side in the width direction is a moving-side width locking surface 211a. Moreover, the surface which faced the near side of the depth direction among the walls which comprise this recessed part 211 is the movement side depth latching surface 211b.

  230 is a metal cover, and this cover 230 is provided in a substantially rectangular shape having two sides in the depth direction and the width direction when viewed from the thickness direction. The cover 230 is provided so as to overlap the plug connector main body 210 in the thickness direction. The cover 230 is fixed to the plug connector main body 210 by press-fitting, integral molding by casting, or the like. This cover 230 may be provided as necessary.

  The receptacle connector 100 and the plug connector 200 are provided with fitting portions 113 and 213 for preventing errors as necessary. That is, one of the receptacle connector main body 110 and the plug connector main body 210 is provided with a groove extending in the depth direction at an appropriate portion in the width direction, and the other is provided with a protrusion that fits into the groove. In the receptacle connector 100 and the plug connector 200, various pairs having different numbers of poles may be set. When the receptacle connector 100 and the plug connector 200 are to be connected in a correct combination, the fitting portions 113 and 213 can be fitted and connected, but the receptacle connector 100 and the plug connector 200 having different numbers of poles are erroneously connected. In this case, the fitting portions 113 and 213 do not match, so that the connection cannot be made, thereby preventing an error. In addition, if plug connector 200 is inserted obliquely into receptacle connector 100 and twisted, receptacle connector 100 or plug connector 200 may be damaged. However, when inserted obliquely, fitting portions 113 and 213 do not match, so an error occurs. Can be noticed and prevent damage.

  When the plug connector 200 is inserted into the receptacle connector 100, the plug connector 200 is held diagonally so that the edge on the near side is farther from the receptacle connector 100 than the edge on the back side in the depth direction (see FIG. 13). The rear edge is inserted into the groove 111 of the receptacle connector 100 (see FIG. 14), and then the front edge is tilted so as to approach the latch arm 130 of the receptacle connector 100. Then, the bottom surface, which is one surface in the thickness direction of the plug connector 200, presses the guide portion 131a of the pressing portion 131 of the latch arm 130, and the guide portion 131a extends from the pressing force of the plug connector 200 toward the outside in the width direction. A force F (see FIGS. 6 and 7) is pulled out, whereby the latch arm 130 is bent outward in the width direction. Further, when the plug connector 200 is tilted, the front side of the plug connector 200 in the depth direction gets over the holding member 131 of the latch arm 130 to the other member side and fits between the two latch arms 130, 130, and the latch arm restored by elastic restoring force. The fixed-side width locking surface 131b is in surface contact with the moving-side width locking surface 211a of the plug connector 200, and the fixed-side depth locking surface 131c is moved by the plug connector 200. The connectors 100 and 200 are mechanically connected by making surface contact with the side depth locking surface 211b (see FIG. 15). Further, the contact 220 comes into contact with the contact 120, the contact pressure between the contact 220 and the contact 120 is secured by the elastic restoring force due to the elastic deformation of the contact 120, and both the connectors 100 and 200 are electrically connected. When the plug connector 200 is removed from the receptacle connector 100, if the latch arm 130 is bent outward in the width direction, the plug connector 200 is released from the restraint of the pressing portion 131, and the plug connector 200 is elastically deformed by the contact 120. The front side in the depth direction gets over the pressing portion 131 of the latch arm 130 in a direction away from the mating member A, and the plug connector 200 has an edge on the front side that is farther away from the receptacle connector 100 than an edge on the far side in the depth direction. Thus, the plug connector 200 can be removed.

  In that case, since the fixed-side depth engaging surface 131c and the moving-side depth engaging surface 211b are both in surface contact with each other in the depth direction, the holding force of the plug connector 200 in the pulling direction, that is, the direction pulling forward in the depth direction. Is expensive. Further, if the plug connector 200 is inclined so that the edge on the near side is farther away from the receptacle connector 100 than the edge on the far side in the depth direction, the plug connector 200 is not fitted into the receptacle connector 100 and falls down. If it fits between the two latch arms 130, 130, it means that it is fitted, and it can be seen whether or not it is fitted in the posture of the plug connector 200. In addition, the latch arm 130 is restored by elastic restoring force, the fixed-side width locking surface 131b is in surface contact with the moving-side width locking surface 211a of the plug connector 200, and the fixed-side depth locking surface 131c is moved by the plug connector 200. A click feeling is obtained when the side depth engaging surface 211b is brought into surface contact. Therefore, it is easy to confirm the fitting, and incomplete fitting does not occur even if the fitting work is frustrated. Therefore, according to the receptacle connector 100 with the latch arm of the embodiment, it is possible to increase the holding force of the plug connector 200 in the pull-out direction, and it is incomplete even if the fitting operation is frustrated by facilitating the confirmation of the fitting. Can be reliably prevented, and these can be achieved while reducing the thickness.

  In the present invention, each latch arm is provided with a pressing portion projecting inward in the width direction, and the pressing portion receives a component force from the pressing force received from the side opposite to the mating member side in the thickness direction toward the outer side in the width direction. A fixed-side width locking surface facing inward in the width direction and a fixed-side depth locking surface facing inward in the depth direction, and further restrict the configuration of the pressing portion. It is not a thing. Among them, in the case of the above embodiment, the pressing portion 131 is provided in a substantially rectangular shape having two sides in the depth direction and the width direction when viewed from the thickness direction, and the width of the pressing portion 131 on the surface opposite to the mating member side. A guide portion 131a is provided by providing a portion that is inclined so as to approach the counterpart member A toward the inside in the direction, or a guide portion 131a is formed by chamfering a corner on the inner side in the width direction of the pressing portion 131 and in the depth direction. The end surface on the inner side in the width direction of the pressing portion 131 is a fixed-side width locking surface 131b, and the end surface on the inner side in the depth direction of the pressing portion 131 is a fixed-side depth locking surface 131c. In this way, as shown in FIG. 6 or FIG. 7, when the plug connector 200 is inserted into the receptacle connector 100, the plug connector 200 is connected to the latch arm 130 of the receptacle connector 100 with the edge on the near side in the depth direction. When tilted so as to approach, the edge in the width direction of the bottom surface of the plug connector 200 hits the guide portion 131a of the latch arm 130 of the receptacle connector 100, and when the plug connector 200 is further tilted, this abutting portion becomes the guide portion 131a. It moves along an inclined part or a chamfered line. In the meantime, the guide part 131a draws out the component force F which goes to the outer side of the width direction from the pressing force of the plug connector 200, whereby the latch arm 130 is bent to the outer side of the width direction. When the plug connector 200 is further tilted, the plug connector 200 gets over the holding portion 131 of the latch arm 130 and fits between the two latch arms 130, 130, and is collapsed by the holding portion 131 of the latch arm 130 restored by the elastic restoring force. The fixed side width locking surface 131b is in surface contact with the moving side width locking surface 211a of the plug connector 200, and the fixed side depth locking surface 131c is in surface contact with the moving side depth locking surface 211b of the plug connector 200. To do. Therefore, the guide part 131a, the fixed-side width locking surface 131b, and the fixed-side depth locking surface 131c can be provided on the latch arm 130 with a simple structure.

  The latch arm of the present invention only needs to be able to be elastically deformed in the width direction by extending from the two portions spaced in the width direction in the receptacle connector body to the front in the depth direction. In the case of the above embodiment, the surface of the receptacle connector main body 110 opposite to the counterpart member side is provided with a metal cover 112, the two latch arms 130 and 130 are made of metal, The base ends were integrally provided at both ends of the cover 112 in the width direction. In this way, the mounting strength of the latch arm 130 is improved, and the life of the receptacle connector 100 can be extended by sufficiently withstanding the repeated insertion and removal of the plug connector 200. Further, the shield function is exhibited by the cover 112.

  The plug connector 200 according to the embodiment is suitable as a plug connector connected to the receptacle connector 100. In the present invention, the movable side width locking surface facing outward in the width direction and the moving side depth locking surface facing toward the front in the depth direction are provided at two portions spaced apart in the width direction of the plug connector body. It only has to be provided. Among them, in the case of the above-described embodiment, the recessed portions 211 that are recessed in the thickness direction are provided at both ends in the width direction of the plug connector main body 210 and in the front corner in the depth direction, and among the walls constituting the recessed portions 211 The surface facing outward in the width direction is referred to as a moving side width engaging surface 211a, and the surface facing forward in the depth direction is referred to as a moving side depth engaging surface 211b. In this way, when the plug connector 200 is inserted into the receptacle connector 100, if the plug connector 200 is further tilted after the latch arm 130 is bent outward in the width direction, the plug connector 200 gets over the holding portion 131 of the latch arm 130. Thus, the pressing portion 131 of the latch arm 130 that fits between the two latch arms 130 and 130 and is restored by the elastic restoring force enters the recessed portion 211 of the plug connector 200 and presses the bottom surface of the recessed portion 211, so that the plug connector 200 is The fixed-side width locking surface 131 b of the receptacle connector 100 is in surface contact with the moving-side width locking surface 211 a of the plug connector 200, and the fixed-side depth locking surface 131 c of the receptacle connector 100 is held in the plug connector 200. On the moving side depth locking surface 211b Contact to. Accordingly, the plug connector 200 can be provided with the moving-side width locking surface 211a and the moving-side depth locking surface 211b with a simple structure.

  In the above embodiment, the electric wire W is used, but a flat flexible cable may be used. At that time, the connecting portion 222 of the contact 220 is configured so that a flat flexible cable can be connected.

It is a perspective view of the receptacle connector of an embodiment. It is the perspective view which looked at the receptacle connector of embodiment from another angle. It is a top view of the receptacle connector of an embodiment. It is a front view of the receptacle connector of an embodiment. It is a side view of the receptacle connector of an embodiment. It is a front view which expands and shows the front-end | tip of the latch arm of the receptacle connector of embodiment. It is a top view which expands and shows the front-end | tip of the latch arm of the receptacle connector of embodiment. It is a perspective view of the plug connector of an embodiment. It is the perspective view which looked at the plug connector of embodiment from the bottom face side. It is a bottom view of the plug connector of an embodiment. It is a rear view of the plug connector of an embodiment. It is a side view of the plug connector of an embodiment. It is a perspective view which shows the state which tries to insert the edge of the plug connector of embodiment into the groove | channel of a receptacle connector. It is a perspective view which shows the state which inserted the edge of the plug connector of embodiment into the groove | channel of a receptacle connector. FIG. 15 is a perspective view showing a state in which the plug connector is tilted from the state of FIG. 14 and connected to the receptacle connector. It is sectional drawing which expands and shows the receptacle connector and plug connector of embodiment. The end edge of the plug connector is inserted into the groove of the receptacle connector. It is sectional drawing which expands and shows the receptacle connector and plug connector of embodiment. The plug connector is connected to the receptacle connector.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Receptacle connector 110 Receptacle connector main body 111 Groove 111a Horizontal wall 111b Horizontal wall 111c Vertical wall 120 Contact 121 Contact part 122 Connection part 130 Latch arm 131 Holding part 131a Guide part 131b Fixed side width locking surface 131c Fixed side depth locking surface 112 Cover 200 Plug connector 210 Plug connector body 211 Recessed portion 211a Movement side width locking surface 211b Movement side depth locking surface 220 Contact 221 Contact portion 222 Connection portion W Electric wire A Counterpart member

Claims (5)

A receptacle connector with a latch arm that is connected to a plug connector that is mounted on a mating member and connected to an electric wire or a flat flexible cable, when taking a depth direction, a width direction, and a thickness direction orthogonal to each other,
The plug connector is provided in a substantially rectangular shape having two sides in the depth direction and the width direction when viewed from the thickness direction, and the contact is exposed on at least one surface in the thickness direction at the edge on the back side in the depth direction, Two parts spaced apart in the width direction are provided with a moving side width locking surface facing outward in the width direction and a moving side depth locking surface facing toward the front in the depth direction,
The receptacle connector with a latch arm is opened toward the front in the depth direction by two lateral walls facing in the thickness direction and a vertical wall between the two lateral walls, and the end of the plug connector in the depth direction A receptacle connector main body having a groove into which an edge is inserted, and at least a part of which is insulative;
A portion of the receptacle connector main body having a contact portion that can be elastically deformed in the thickness direction and that contacts the contact of the plug connector and a connection portion that is connected to the mating member, and has an insulating property of the receptacle connector main body. A conductive contact, and
A pair of latch arms capable of elastic deformation in the width direction extending from the two positions spaced in the width direction in the receptacle connector body to the front in the depth direction,
Each latch arm is provided with a pressing portion that protrudes inward in the width direction, and this pressing portion receives a component force that is applied to the outer side in the width direction from the pressing force received from the opposite side of the mating member in the thickness direction. A guide portion to be pulled out, a fixed width locking surface facing inward in the width direction corresponding to the moving side width locking surface of the plug connector, and a depth direction corresponding to the moving side depth locking surface of the plug connector. A receptacle connector with a latch arm, characterized by being provided with a fixed depth locking surface facing the surface.   The pressing part is provided in a substantially rectangular shape having two sides in the depth direction and the width direction when viewed from the thickness direction, and the other side member faces toward the inner side in the width direction on the opposite side of the pressing part. A part that is inclined so as to approach is provided to become a guide part, or a corner on the inner side in the width direction and in the depth direction is chamfered when viewed from the thickness direction to become a guide part, and the inner part in the width direction of the pressing part. The receptacle connector with a latch arm according to claim 1, wherein the end surface is a fixed-side width locking surface, and the end surface of the pressing portion in the depth direction is the fixed-side depth locking surface. The surface of the receptacle connector body opposite to the counterpart member side is provided by a metal cover,
The receptacle connector with a latch arm according to claim 1 or 2, wherein the two latch arms are made of metal, and the base ends of the latch arms are integrally provided at both ends in the width direction of the cover. A plug connector connected to the receptacle connector with a latch arm according to any one of claims 1 to 3,
A plate-shaped plug connector that is provided in a substantially rectangular shape having two sides in the depth direction and the width direction when viewed from the thickness direction when the depth direction, the width direction, and the thickness direction are orthogonal to each other. The body,
Provided in the plug connector body having a contact portion exposed on at least one surface in the thickness direction at the edge on the back side in the depth direction of the plug connector body, and a connection portion connected to the electric wire or the flat flexible cable, A conductive contact,
Two parts spaced apart in the width direction of the plug connector main body are provided with a moving side width locking surface facing outward in the width direction and a moving side depth locking surface facing toward the front in the depth direction. Plug connector.   The plug connector body is provided with recessed portions that are recessed in the thickness direction at both ends in the width direction and at the front corner in the depth direction. Of the walls constituting the recessed portion, the surface facing outward in the width direction moves. The plug connector according to claim 4, wherein the side width engaging surface and the surface facing toward the front in the depth direction is the moving side depth engaging surface.

Images