CN116667051A - Connector assembly and wire end connector - Google Patents

Abstract

The invention discloses a connector combination and a wire end connector, wherein the wire end connector comprises: a transmission piece, which is provided with a butting part used for butting with the butting connector; the insulation body is provided with a first accommodating space, an extension part and a joint part, the extension part is provided with an outer side and an inner side which are oppositely arranged along a second direction, the first accommodating space is positioned between the inner side of the extension part and the butt joint part along the second direction, the joint part and the extension part are positioned at two sides of the butt joint part along the second direction, and the joint part is used for being mutually buckled with the butt joint connector; the locking piece is fixed on the extension part and is provided with a locking main body and a force application part, the locking main body is provided with at least one first locking part exposed on the inner side of the extension part, and the first locking part is used for locking with a second locking part of the butt joint connector between the inner side of the extension part and the butt joint part. The locking piece is not easy to damage and can reduce the risk of separating two connectors when being subjected to hanging weight pulling force.

Description

Connector assembly and wire end connector

[ field of technology ]

The present invention relates to a connector assembly and a wire end connector, and more particularly, to a connector assembly and a wire end connector with a latch member that is not easily damaged and that can reduce the risk of detachment of the two connectors when a lifting force is applied thereto.

[ background Art ]

A conventional connector assembly, such as chinese patent CN202021764494.8, includes a wire end connector and a board end connector, the wire end connector having a wire end housing, a PCB board and a spring piece, the spring piece being fixed in a mounting groove of a first board of the wire end housing, the spring piece having a latch hook; the board-end connector has a board-end housing having a locking hole and a receptacle positioned in the board-end housing. After the end connector and the board end connector are in butt joint, the lock hook of the elastic piece is clamped in the lock hole of the board end shell.

In the above connector assembly, the board end housing is flared with respect to the socket, so that a socket is formed between the board end housing and the socket to accommodate the first board, and when the line end connector is subjected to a hanging pull force (for example, the line end connector is pulled down by the gravity of the line due to the sagging of the line), the line end connector can be limited in the socket through the first board, thereby resisting the hanging pull force and avoiding the line end connector and the board end connector from being separated from each other. However, the latch hook and the latch hole are exposed outside the first plugboard and are easy to damage to affect subsequent use. If the latch hook and the hole are not located outside the first board, the current technical solution cannot achieve mutual latching of the connector components and cannot resist the hanging tension.

Therefore, there is a need to design a connector assembly and a wire-end connector to overcome the above-mentioned problems.

[ invention ]

The invention aims to provide a connector assembly and a wire end connector, wherein a first locking part of a locking piece is exposed to the inner side of an extension part, the first locking part and a second locking part are mutually locked between the extension part and a butt joint part, the second locking part of the second connector does not need to be expanded to extend to the outer side of the extension part, the risk that the first locking part and the second locking part are damaged can be reduced, and the connection stability between the first connector and the second connector can be improved through mutual buckling between a first extension arm and a joint part, and the risk that the first connector is separated from the second connector after being subjected to hanging heavy tension can be reduced.

In order to achieve the above object, the present invention adopts the following first technical scheme: a connector assembly comprising a first connector and a second connector which are butted with each other along a first direction, wherein the first connector comprises a first insulating body, a locking piece and a butting part connected with the first insulating body, the butting part extends along the first direction, the first insulating body is provided with a first accommodating space, a joint part and an extension part extending along the first direction, the extension part is provided with an outer side and an inner side which are oppositely arranged along a second direction, the joint part and the extension part are respectively positioned at two sides of the butting part along the second direction, the first accommodating space is positioned between the butting part and the inner side of the extension part along the second direction, the locking piece is fixed on the extension part and is provided with at least one first locking part, the first locking part is exposed on the inner side of the extension part, and the first direction and the second direction are perpendicular; the second connector comprises a second insulating body and a metal shell, wherein the second insulating body is provided with a containing cavity and a first side surface, the metal shell is provided with a first wall body and a first extension arm extending along the second direction, the first wall body is provided with at least one second locking part, and the inner surface of the first wall body is adjacently arranged on the first side surface; when the first connector and the second connector are in butt joint and the first wall body enters the first accommodating space, the butt joint part is accommodated in the accommodating cavity, the outer surface of the first wall body faces to the inner side of the extension part, the first locking part and the second locking part of the first wall body are locked with each other, and the first extension arm is locked with the joint part.

Further, the first insulating body further includes a limiting plate extending along the first direction, the limiting plate and the extending portion are located at two sides of the abutting portion along the second direction, the first insulating body further includes a second accommodating space for accommodating at least a portion of the second connector, the second accommodating space is located between the abutting portion and an inner side of the limiting plate along the second direction, and the inner side of the limiting plate and the inner side of the extending portion are used for limiting movement of the second connector along the second direction.

Further, the first insulating body further has a receiving portion extending along the second direction in a direction away from the extending portion, the receiving portion is configured to receive the cable, at least a portion of the receiving portion is connected to the limiting plate, the engaging portion is in a groove shape and is located at a connection position between the limiting plate and the receiving portion, the limiting plate extends beyond the receiving portion along the first direction, and when the first connector and the second connector are abutted and the first wall body enters the first receiving space, the first extending arm at least partially enters the engaging portion.

Further, the second insulating body is further provided with a second side surface opposite to the first side surface along the second direction, the metal shell is further provided with a second extension arm and a second wall body opposite to the first wall body along the second direction, the second wall body is provided with at least one second locking part, the inner surface of the second wall body is adjacent to the second side surface, and the first extension arm and the second extension arm respectively extend beyond the second wall body and the first wall body along the second direction; when the first connector and the second connector are in butt joint and the second wall body enters the first accommodating space, the outer surface of the second wall body faces the inner side of the extension part, the first locking part and the second locking part of the second wall body are locked with each other, and the second extension arm is locked with the joint part; and defining a third direction perpendicular to the first direction and the second direction, wherein when the first connector and the second connector are in butt joint, the projection of the first extension arm or the second extension arm is positioned in the projection of the extension part as seen along the third direction.

Further, the first locking portion is an opening, the second locking portion is a hook, the first insulating body further includes a limiting plate extending along the first direction, the limiting plate and the extending portion are located at two sides of the abutting portion respectively along the second direction, the inner side of the limiting plate is used for limiting the movement of the second connector along the second direction, the limiting plate is provided with at least one yielding groove extending from the tail end of the limiting plate along the first direction, and the yielding groove is used for accommodating the second locking portion of the first wall body or the second locking portion of the second wall body.

Further, the second insulating body has a mating end face facing the first connector in the first direction, and the first extension arm is close to the end of the extension portion in the first direction with respect to the mating end face when the first connector and the second connector are mated.

Further, the metal shell is further provided with a second wall body which is opposite to the first wall body along the second direction, a third direction is defined to be perpendicular to the first direction and the second direction, the metal shell is further provided with a third wall body and a fourth wall body which are opposite to each other along the third direction, the third wall body and the fourth wall body are connected between the first wall body and the second wall body, the first extension arm is torn from the second wall body and is formed by stamping, and the root of the first extension arm is connected with the third wall body.

Further, a first end and a second end of the first wall body, which are oppositely arranged along the third direction, are respectively connected with the third wall body and the fourth wall body, a first positioning part is arranged at the first end of the first wall body, a first end and a second end of the second wall body, which are oppositely arranged along the third direction, are respectively connected with the third wall body and the fourth wall body, and a second positioning part is arranged at the first end of the second wall body; the third wall body is provided with a third positioning part, and the first positioning part, the second positioning part and the third positioning part are all used for being fixedly connected with a second electronic element; the metal shell is provided with a fixing part connected with the third wall body, and the fixing part is fixed with the second insulating body.

Further, the locking piece is provided with two first locking parts, the first wall body is provided with two second locking parts, the first wall body, a second wall body, a third wall body and a fourth wall body are formed by the metal shell through an integrated sheet, the second wall body and the first wall body are oppositely arranged along the second direction, a third direction perpendicular to the first direction and the second direction is defined, and the third wall body and the fourth wall body are oppositely arranged along the third direction and are both connected between the first wall body and the second wall body; the metal shell is provided with a combination part, and the combination part is close to the third wall body or the fourth wall body along the third direction relative to the two second locking parts.

Compared with the prior art, the connector combination provided by the application has the following beneficial effects: the first locking part and the second locking part are mutually locked between the inner side of the extension part and the butt joint part, the first wall body of the metal shell does not need to be expanded to the outer side of the extension part to be locked with the first locking part on the outer side, and the first locking part and the second locking part are not exposed to the outer side of the extension part, so that the first locking part and the second locking part can be prevented from being damaged by jacking deformation; the first wall body does not extend to the outer side of the extension portion to cover the extension portion, and the extension portion is not limited between the first wall body and the second insulating body, so that the connection stability between the first connector and the second connector is improved through the mutual buckling between the first extension arm and the joint portion, and particularly when the first connector receives a hanging weight pulling force, the risk that the first connector is separated from the second connector after being subjected to the hanging weight pulling force after being mutually buckled by the first extension arm and the joint portion is reduced. In addition, since the engaging portion and the extending portion are respectively located at two sides of the abutting portion, when the first connector receives the hanging pulling force at any side of the second direction, the engaging portion and the engaging portion between the engaging portion and the first extending arm can resist the hanging pulling force by limiting the outer side of the first wall body by the extending portion, so that the risk that the first connector and the second connector are separated from each other is reduced more effectively.

In order to achieve the above object, the present invention adopts the following second technical scheme: a wire end connector for mating with a mating connector along a first direction, comprising: a transmission member having a connection portion for connecting the cables and a mating portion extending in the first direction for mating with the mating connector; the transmission part is fixed by the insulation body, the insulation body is provided with a first accommodating space, an extension part and a joint part, the extension part extends along the first direction, the extension part is provided with an outer side and an inner side which are oppositely arranged along the second direction, the first accommodating space is used for accommodating at least part of the butt joint connector and is positioned between the inner side of the extension part and the butt joint part along the second direction, the joint part and the extension part are positioned on two sides of the butt joint part along the second direction, the joint part is used for mutually buckling with the butt joint connector, and the first direction and the second direction are mutually perpendicular; the locking piece is fixed on the extension part and is provided with a locking main body and a force application part connected with the locking main body, the locking main body is provided with at least one first locking part exposed on the inner side of the extension part, and the first locking part is used for locking with a second locking part of the butt joint connector between the inner side of the extension part and the butt joint part.

Further, the insulating body further includes a limiting plate extending along the first direction, the limiting plate and the extending portion are located at two sides of the abutting portion along the second direction, the first connector has a second accommodating space for accommodating at least a portion of the abutting connector, and the second accommodating space is located between the abutting portion and an inner side of the limiting plate along the second direction.

Further, the insulation body is further provided with a containing portion extending along the second direction towards a direction far away from the extending portion, the containing portion is used for containing the cable and the wiring portion, at least a portion of the containing portion is connected with the limiting plate, the connecting portion is in a groove shape and is located at a connecting position between the limiting plate and the containing portion, the limiting plate extends beyond the containing portion along the first direction, and the connecting portion is used for allowing at least a portion of the butt connector to enter and be buckled.

Further, the first locking portion is configured to lock with the second locking portion on any one side of the second locking portions on two opposite sides of the mating connector along the second direction, the engaging portion is configured to be locked with the extension arm on any one side of the extension arm on two opposite sides of the mating connector along the second direction, and a distance between the engaging portion and the mating portion along the second direction is defined as a first distance when viewed along a third direction perpendicular to the first direction and the second direction, a distance between an outer side of the extending portion and the mating portion along the second direction is defined as a second distance, and the first distance is not greater than the second distance.

Further, the first locking portion is an opening, an elastic deformation space for the first locking portion to move is formed between the first locking portion and the inner side of the extension portion, and the first locking portion is used for the second locking portion to enter in the direction of the elastic deformation space.

Further, the first locking portion is configured to be locked with one of the second locking portions on two opposite sides of the mating connector along the second direction, the insulating body further includes a limiting plate extending along the first direction, the limiting plate and the extending portion are located on two sides of the mating portion along the second direction, an inner side of the limiting plate is configured to limit movement of the mating connector along the second direction, and the limiting plate has at least one yielding groove extending from an end of the limiting plate along the first direction, and the yielding groove is configured to accommodate the second locking portion on the other side.

Further, the insulative housing has a mating surface facing the mating connector in the first direction, the mating portion extends beyond the mating surface in the first direction, a third direction is defined perpendicular to the first direction and the second direction, the engagement portion is projected in the third direction, the engagement portion is closer to an end of the mating portion than the mating surface in the first direction, and an end of the mating portion extends beyond the engagement portion in the first direction.

Compared with the prior art, the wire end connector provided by the application has the following beneficial effects: according to the application, the first locking part and the second locking part of the butt joint connector are locked between the inner side of the extension part and the butt joint part, the second locking part of the butt joint connector does not need to be outwards expanded to the outer side of the extension part to be locked with the first locking part on the outer side, and the first locking part and the second locking part are not exposed to the outer side of the extension part, so that the first locking part and the second locking part can be prevented from being damaged by jacking deformation. In addition, since the engagement portion and the extension portion are located at two sides of the abutting portion along the second direction, the engagement portion is used for being mutually buckled with the abutting connector, when the wire end connector receives the hanging tension force and has a falling trend along one side of the second direction, the hanging tension force can be resisted through the engagement between the engagement portion and the first extension arm, and the risk that the wire end connector is mutually separated from the abutting connector after the wire end connector receives the hanging tension force can be reduced.

[ description of the drawings ]

Fig. 1 is an exploded perspective view of a first connector according to an embodiment of the present application;

Fig. 2 is an exploded perspective view of a second connector according to an embodiment of the present invention;

fig. 3 is a perspective view of a connector assembly according to an embodiment of the present invention before a first connector and a second connector are mated;

fig. 4 is a perspective view of a connector assembly according to an embodiment of the present invention after the first connector and the second connector are mated;

FIG. 5 is a cross-sectional view taken at the first latch portion and viewed in a third direction, prior to mating of the first connector and the second connector in the connector assembly provided by the present invention;

fig. 6 is a cross-sectional view of the connector assembly according to the embodiment of the present invention, taken at the first locking portion and viewed along the third direction, after the first connector and the second connector are mated;

FIG. 7 is an enlarged view of portion A of FIG. 6;

fig. 8 is a plan view of the first connector and the second connector in the connector assembly according to the embodiment of the present invention, viewed along the third direction after the mating is completed;

fig. 9 is a perspective view of a first connector according to an embodiment of the present invention;

fig. 10 is a plan view of a first connector according to an embodiment of the present invention, viewed along a third direction;

FIG. 11 is a perspective view of a locking element according to an embodiment of the present invention;

Fig. 12 is a perspective view of the locking element according to the embodiment of the present invention from another perspective.

Reference numerals of the specific embodiments illustrate:

[ detailed description ] of the invention

For a better understanding of the invention with objects, structures, features, and effects, the invention will be described further with reference to the drawings and to the detailed description.

In order to facilitate understanding of the technical scheme of the invention, a Z axis in a three-dimensional coordinate axis in the drawing of the specification is defined as a first direction, a Y axis is defined as a second direction, an X axis is defined as a third direction, and the X axis, the Y axis and the Z axis are perpendicular to each other.

Referring to fig. 1 to 4, a connector assembly according to the present invention includes a first connector 100 and a second connector 200 that are mated with each other along a first direction Z. The first connector 100 and the second connector 200 are also connected to a first electronic component 300 and a second electronic component (not shown, hereinafter, the same applies) respectively, and the second connector 200 is regarded as a mating connector of the first connector 100. In this embodiment, the first electronic component 300 is a cable, and the second electronic component is a circuit board; of course, in other embodiments, the first electronic component 300 and the second electronic component may be other components, for example, the first electronic component 300 is a circuit board and the second electronic component is a cable, or the first electronic component 300 is a cable and the second electronic component is a cable, which is not limited herein. It should be noted that when the first connector 100 connects a cable, it may be referred to as a wire end connector. After the first connector 100 and the second connector 200 are mated, mutual locking and signal transmission are achieved, and mutual unlocking and separation can be achieved through unlocking operation.

Referring to fig. 1 and 3, the first connector 100 includes a first insulating body 1, a locking member 3, a pull strap 5, and a transmission member 2 and an inner mold 4 fixed to the first insulating body 1. The pull belt 5 is sleeved on the locking piece 3. The transmission member 2 and the locking member 3 are both fixed to the first insulating body 1, the transmission member 2 has a plurality of first terminals 23, the transmission member 2 includes a docking portion 21 extending along a first direction Z, and the docking portion 21 is configured to dock with the second connector 200. In this embodiment, the transmission member 2 further has a connection portion 22 for connecting a cable, at least a portion of the transmission member 2 is accommodated in the first insulating body 1, and in other embodiments, the connection portion 22 is not disposed corresponding to the transmission member 2 when the first connector 100 is not used for connecting a cable. The first terminals 23 are arranged in two rows and are respectively exposed on two surfaces of the butt joint portion 21, the first terminals 23 are used for connecting the first electronic component 300 and the second connector 200, and the inner die 4 is accommodated in the first insulating body 1 and is used for being fixed at a connection position between the first terminals 23 and the first electronic component 300, so that connection stability between the first terminals 23 and the first electronic component 300 is improved. The first insulating body 1 further has two guide posts 15 extending along the first direction Z, and the two guide posts 15 are respectively located at two sides of the abutting portion 21 along the third direction X. In this embodiment, the first insulating body 1 includes a split first body 16 and a second body 17, the transmission member 2 is assembled and fixed on the first body 16, and the second body 17 is used to cover and fix on the first body 16 after the transmission member 2 is assembled; in other embodiments, the first insulating body 1 may be a unitary structure. When in use, a user can directly pull the pull belt 5 to drive the locking piece 3 to deform, or directly press the force application part 35 of the locking piece to directly deform the locking piece 3, so as to realize mutual unlocking between the first connector 100 and the second connector 200.

Referring to fig. 5 and 6, the first terminal 23 has a contact portion 231, a conductive portion 233, and a connection portion 232 connecting the contact portion 231 and the conductive portion 233. In this embodiment, the transmission member 2 is connected to a cable through the connection portion 22, and the conductive portion 233 of the first terminal 23 is connected to the cable. In this embodiment, the contact portion 231 extends along the first direction Z, the guiding portion 233 extends along the second direction Y, and in other embodiments, both the contact portion 231 and the guiding portion 233 may extend along the first direction Z.

Referring to fig. 2 and 3, the second connector 200 includes a second insulating body 6, a metal shell 7, and a plurality of second terminals 9 fixed to the second insulating body 6. The second insulating body 6 has a receiving cavity 65, and the plurality of second terminals 9 are arranged in two rows on two sides of the receiving cavity 65. The second insulating body 6 has a first side 61 and a second side 62 which are disposed opposite to each other along the second direction Y, and a third side 63 and a fourth side 64 which are disposed opposite to each other along the third direction X, the metal shell 7 has a first wall 71 and a second wall 72 which are disposed opposite to each other along the second direction Y, an inner surface of the first wall 71 is disposed adjacent to the first side 61, an inner surface of the second wall 72 is disposed adjacent to the second side 62, and both the first wall 71 and the second wall 72 are provided with two second locking portions 75. The metal shell 7 further has a third wall 73 and a fourth wall 74 disposed opposite to each other along the third direction X, and the third wall 73 and the fourth wall 74 are connected between the first wall 71 and the second wall 72.

The first wall 71 has no receiving space between the inner surface and the first side 61 for receiving the related structure of the first connector 100 along the first direction Z, and the second wall 72 has no receiving space between the inner surface and the second side 62 for receiving the related structure of the first connector 100 along the first direction Z. However, the inner surface of the first wall 71 and the first side 61 may be completely fitted, or may have a certain gap due to other requirements such as assembly; similarly, the inner surface of the first wall 71 and the second side 62 may be completely adhered or have a certain gap due to other requirements such as assembly. Further, the metal shell 7 further has two first extension arms 76 and two second extension arms 77 extending in the second direction Y, the first extension arms 76 extending beyond the outer surface of the first wall 71 in the second direction Y, and the second extension arms 77 extending beyond the outer surface of the second wall 72 in the second direction Y. It should be noted that, the second locking portion 75 of the second connector 200 is provided on the first wall 71 and the second wall 72 of the metal shell 7, and in other embodiments, the second connector 200 may not have the metal shell 7 and may be replaced by an insulating shell, and the second locking portion 75 is located on two sides of the insulating shell; or the second locking portions 75 are formed directly from both sides of the second insulating body 6. In this embodiment, the second connector 200 further has two guiding grooves 8 located at two sides of the receiving cavity 65 along the third direction X, and the two guiding grooves 8 are configured to receive the two guiding posts 15 of the first connector 100. In this embodiment, one of the guide grooves 8 is formed by surrounding the third side surface 63 and the metal shell 7 together, and the other guide groove 8 is formed by surrounding the fourth side surface 64 and the metal shell 7 together.

Referring to fig. 5 and 6, the first insulating body 1 has a first accommodating space G1 and an extension portion 11 extending along the first direction Z, the extension portion 11 has an outer side 112 and an inner side 111 opposite to each other along the second direction Y, and the first accommodating space G1 is located between the abutting portion 21 and the inner side 111 of the extension portion 11 along the second direction Y.

Referring to fig. 5 and 6, the first insulating body 1 further has a second accommodating space G2, a limiting plate 13 extending along the first direction Z, and an accommodating portion 14 extending along the second direction Y in a direction away from the extending portion 11. The limiting plate 13 and the extending portion 11 are respectively located at two sides of the abutting portion 21 along the second direction Y. The accommodating portion 14 is configured to accommodate the first electronic component 300, and at least a portion of the accommodating portion 14 is connected to the limiting plate 13. The second accommodating space G2 is located between the mating portion 21 and the inner side of the limiting plate 13 along the second direction Y, and the second accommodating space G2 is configured to accommodate at least a portion of the second connector 200. In this embodiment, the accommodating portion 14 is formed by a part of the first body and a part of the second body, and has four insulating walls and includes a space surrounded by the four insulating walls.

Referring to fig. 1, 3 and 4, the first insulating body 1 has a joint portion 12, and the joint portion 12 and the extension portion 11 are located on two sides of the abutting portion 21 along the second direction Y, respectively. In this embodiment, the engaging portion 12 is in a groove shape and is located at a connection position between the limiting plate 13 and the accommodating portion 14. In other embodiments, the engagement portion 12 may be in other configurations, not limited herein. For example, the engaging portion 12 may be a local surface of a structure in the first insulating body 1 (for example, the engaging portion 12 may be a local part of an outer side surface of the limiting plate 13, and the first extension arm 76 is fastened to a certain position of the outer side surface of the limiting plate 13).

Referring to fig. 3, 5 and 9, the locking member 3 is fixed to the extension portion 11, the locking member 3 has two first locking portions 3121, the first locking portions 3121 are exposed on the inner side 111 of the extension portion 11, and the first locking portions 3121 are spaced from the abutting portion 21 by the first accommodating space G1.

Referring to fig. 4 to 6, when the first connector 100 and the second connector 200 are mated, the first terminal 23 and the second terminal 9 are mated, and the first wall 71 and the second wall 72 are located on both sides of the mating portion 21 along the second direction Y. In addition, the first connector 100 and the second connector 200 of the present embodiment may be plugged in the opposite directions, if the first connector 100 and the second connector 200 are plugged in the opposite directions, the first wall 71 is received in the first receiving space G1 after the mating is completed, the mating portion 21 is received in the receiving cavity 65, the outer surface of the first wall 71 faces the inner side 111 of the extension portion 11, the first locking portion 3121 is locked with the second locking portion 75 of the first wall 71, and the first extension arm 76 is locked with the joint portion 12. If the first connector 100 and the second connector 200 are plugged in opposite directions, the second wall 72 is received in the first receiving space G1 after the mating is completed, the mating portion 21 is received in the receiving cavity 65, the outer surface of the second wall 72 faces the inner side 111 of the extension portion 11, the first locking portion 3121 and the second locking portion 75 of the second wall 72 are locked with each other, and the second extension arm 77 and the joint portion 12 are locked with each other. That is, in the present embodiment, the second connector 200 has the second locking portions 75 on opposite sides in the second direction Y, and the first locking portions 3121 can be locked with the second locking portions 75 on either side.

The first locking part 3121 and the second locking part 75 of the present application are locked with each other between the inner side 111 of the extension part 11 and the abutting part 21, the first wall 71 of the metal shell 7 does not need to be expanded to the outer side 112 of the extension part 11 to be locked with the outer side first locking part 3121, and the first locking part 3121 and the second locking part 75 are not exposed to the outer side 112 of the extension part 11, so that the first locking part 3121 and the second locking part 75 can be prevented from being damaged by the collision deformation; since the first wall 71 does not extend to the outer side 112 of the extension 11 to cover the extension 11, and the extension 11 cannot be limited between the first wall 71 and the second insulating body 6, the present application further increases the connection stability between the first connector 100 and the second connector 200 through the mutual fastening between the first extension arm 76 and the joint 12, especially when the first connector 100 is under a hanging heavy tension, the risk that the first extension arm 76 and the joint 12 are mutually fastened and then separated from the second connector 200 after the first connector 100 is under a hanging heavy tension is reduced. In addition, since the engaging portion 12 and the extending portion 11 are respectively located at both sides of the abutting portion 21, when the first connector 100 receives the hanging force in either side of the second direction Y, the engaging portion 11 limits the outer side of the first wall 71 and the engaging portion 12 and the first extending arm 76 to resist the hanging force, so that the risk that the first connector 100 and the second connector 200 are separated from each other can be reduced more effectively.

Further, in the present application, since the first locking portion 3121 and the second locking portion 75 are locked between the inner side 111 of the extension portion 11 and the abutting portion 21, the inner surface of the first wall 71 and the inner surface of the second wall 72 can be respectively adjacent to and cover the first side 61 and the second side 62, without the need of expanding the first wall 71 or the second wall 72 with respect to the first side 61 and the second side 62 to form an accommodating space for accommodating the extension portion 11, the molding material increased by the expansion of the metal shell 7 is reduced, and the present application can realize the locking of the first locking portion 3121 and the second locking portion 75 of the first wall 71, or the locking of the first locking portion 3121 and the second locking portion 75 of the second wall 72, and can realize the positive and negative insertion of the first connector 100 and the second connector 200.

It should be noted that, in other embodiments, the first connector 100 and the second connector 200 may not implement the forward plug, and may only satisfy the forward plug, and the technical solution of the present application is not limited to be used in the forward plug technical solution. It will be appreciated that the two side structures of the second connector 200 need not be arranged symmetrically, the second wall 72 may not be provided with the second locking portion 75, and the metal shell 7 may only retain the first extension arm 76 and not the second extension arm 77.

Referring to fig. 5 and 9, the first insulating body 1 has a mating surface 18 facing the second connector 200 along the first direction Z, the mating portion 21 extends beyond the mating surface 18 along the first direction Z, the engaging portion 12 is close to an end of the mating portion 21 with respect to the mating surface 18 along the first direction Z, and an end of the mating portion 21 extends beyond the engaging portion 12 along the first direction Z, as projected along the third direction X. Correspondingly, as shown in fig. 2 and 3, the second insulating body 6 has a pair of mating end faces 66 facing the first connector 100 in the first direction Z. As shown in fig. 3 and 8, when the first connector 100 and the second connector 200 are mated, the first extension arm 76 and the second extension arm 77 are close to the end of the extension 11 along the first direction Z with respect to the mating end surface 66. If the first direction Z is referred to as the up-down direction, the first extension arm 76 and the second extension arm 77 are not higher than the abutting end surface 66 of the second insulating body 6. Thus, the engaging portion 12 of the present embodiment is not located outside the second insulating body along the first direction (if the first direction Z is referred to as the up-down direction, the engaging portion 12 is not located above the second insulating body along the first direction Z), so that the position between the first extension arm 76 and the engaging portion 12 can be located further away from the first connector 100 and closer to the second connector 200, i.e. closer to the position where the first connector 100 and the second connector 200 are combined, and the difficulty of disengaging between the second connector 200 and the engaging portion 12 when the first connector 100 is under the hanging heavy tension is increased.

In addition, as shown in fig. 2 and 3, the first extension arm 76 is torn and punched from the second wall 72, the root of the first extension arm 76 is connected to the third wall 73, and similarly, the second extension arm 77 is torn and punched from the first wall 71, and the root of the second extension arm 77 is connected to the third wall 73. Since the first extension arm 76 extends along the second direction Y, when the first extension arm 76 is subjected to the force of the second direction Y, assuming that the first extension arm 76 tears from the second wall 72 and is only connected to the second wall 72 and is not connected to the third wall 73, the first extension arm 76 may continue to pull the second wall 72 to tear further after being subjected to the force, resulting in damage to the metal shell 7, while the first extension arm 76 of the present application tears from the second wall 72 and the root is connected to the third wall 73, since the plane of the third wall 73 is parallel to the second direction Y, the third wall 73 is not easily torn when the first extension arm 76 is subjected to the force of the second direction Y, thereby reducing the risk of damage to the metal shell 7. Similarly, the root of the second extension arm 77 is connected to the third wall 73, so as to avoid tearing the metal shell 7 when the second extension arm 77 is stressed.

Referring to fig. 2 and 3, a first end and a second end of the first wall 71 opposite to each other along the third direction X are respectively connected to the third wall 73 and the fourth wall 74, and a first positioning portion 711 is disposed at the first end of the first wall 71. The first end and the second end of the second wall 72, which are disposed opposite to each other along the third direction X, are respectively connected to the third wall 73 and the fourth wall 74, and the first end of the second wall 72 is provided with a second positioning portion 721. The third wall 73 has a third positioning portion 731, and the first positioning portion 711, the second positioning portion 721, and the third positioning portion 731 are all configured to be fixedly connected to a second electronic component; the metal shell 7 has a fixing portion 79 connected to the third wall 73, and the fixing portion 79 is fixed to the second insulating body 6. The connection stability of the third wall 73 and the second electronic component can be integrally increased by the first positioning part 711, the second positioning part 721, the third positioning part 731, and the fixing part 79, and when the first connector 100 receives a hanging weight pulling force, the stability of the first extension arm 76 can be increased because the first extension arm 76 is connected with the third wall 73, effectively enhancing the connection stability between the first connector 100 and the second connector 200.

Similarly, when the metal shell 7 further has another first extension arm 76 connected to the fourth wall 74, a fourth positioning portion 712 is disposed at the second end of the first wall 71, a fifth positioning portion 722 is disposed at the second end of the second wall 72, the fourth wall 74 has a sixth positioning portion 741, and the fourth positioning portion 712, the fifth positioning portion 722 and the sixth positioning portion 741 are all fixedly connected to the second electronic element; the metal shell 7 has a fixing portion 79 connected to the fourth wall 74, and the fixing portion 79 is fixed to the second insulating body 6. The same may be able to increase the stability of the other of the first extension arms 76, effectively enhancing the connection stability between the first connector 100 and the second connector 200.

Referring to fig. 5 and 6, the second accommodating space G2 accommodates at least a portion of the second connector 200, and the inner side of the limiting plate 13 and the inner side 111 of the extending portion 11 are used to limit the movement of the second connector 200 along the second direction Y. Thus, when the first connector 100 is subjected to the sling force at a position adjacent to the limiting plate 13, even if the first connector 100 is driven by the sling force to be separated from the second connector 200, the present application can limit the relative movement between the first connector 100 and the second connector 200 by the limiting plate 13 and the extension portion 11, so as to further reduce the risk of separation from the second connector 200 when the first connector 100 is subjected to the sling force.

Referring to fig. 2 and 3, the metal shell 7 is formed with the first wall 71, the second wall 72, the third wall 73 and the fourth wall 74 by a single piece of material, and the metal shell 7 has a joint 78, and the joint 78 is close to the third wall 73 or the fourth wall 74 along the third direction X with respect to the two second locking portions 75. Compared with the combination portion 78 being located between the two second locking portions 75, the material separation at two sides of the combination portion 78 is easily driven by the stress deviation of the two second locking portions 75, but the combination portion 78 of the present application is not located between the two second locking portions 75, so that the coplanarity of the two second locking portions 75 of the first wall 71 can be increased, and the material separation at two sides of the combination portion 12 caused by the stress deviation when the two second locking portions 75 are locked can be prevented.

Referring to fig. 1, 8 and 9, the engaging portion 12 is in a groove shape and is located at a connection position between the limiting plate 13 and the accommodating portion 14, the limiting plate 13 extends beyond the accommodating portion 14 along the first direction Z, and when the first connector 100 and the second connector 200 are mated and the first wall 71 enters the first accommodating space, the first extension arm 76 at least partially enters the engaging portion 12. Thus, after the first extension arm 76 enters the engaging portion 12, the limiting plate 13 and the accommodating portion 14 limit the movement range of the first extension arm 76, so as to help the second connector 200 more accurately mate with the first connector 100; moreover, the joint portion 12 is disposed at a connection position between the limiting plate 13 and the accommodating portion 14, so that the extension length of the first extension arm 76 is moderate, which can avoid the first extension arm 76 from being too short to collide with the limiting plate 13 during the abutting process, and can make the end of the first extension arm 76 approach the abutting portion 21 as much as possible, so as to reduce the material used for the first extension arm 76.

Referring to fig. 5 and 6, when the first connector 100 and the second connector 200 are mated, the projection of the accommodating portion 14 overlaps the projection of the first wall 71 and the projection of the second wall 72 when viewed along the second direction Y. Thus, with respect to the projection of the accommodating portion 14, the first wall 71 and the second wall 72 being staggered, the accommodating portion 14 of the present application can be relatively close to the second connector 200 along the first direction Z, and the connection position of the first electronic component 300 can be relatively sunk, which is beneficial to reducing the size of the first connector 100 in the first direction Z.

Referring to fig. 8 and 10, in the present embodiment, the first extension arm 76 or the second extension arm 77 is fastened to the joint 12. Defining a third direction X perpendicular to the first direction Z and the second direction Y, and when the first connector 100 and the second connector 200 are mated, the projection of the first extension arm 76 or the second extension arm 77 is located within the projection of the extension 11 when viewed along the third direction X. That is, as viewed in the third direction X, a distance between the engaging portion 12 and the abutting portion 21 in the second direction Y is defined as a first distance D1, a distance between the outer side 112 of the extending portion 11 and the abutting portion 21 in the second direction Y is defined as a second distance D2, and the first distance D1 is not greater than the second distance D2. Thus, the first extension arm 76 or the second extension arm 77 can resist the hanging pulling force when the first connector 100 and the second connector 200 are connected in a forward-reverse manner; meanwhile, when the first extension arm 76 and the joint portion 12 are fastened, the second extension arm 77 does not extend beyond the outer side 112 of the extension portion 11, and when the second extension arm 77 and the joint portion 12 are fastened, the first extension arm 76 does not extend beyond the outer side 112 of the extension portion 11, so that the arrangement of the first extension arm 76 and the second extension arm 77 can be prevented from increasing the overall dimension of the first connector 100 and the second connector 200 in the second direction Y after the mating is completed.

In this embodiment, the extending portion 11 needs to maintain a certain thickness for positioning the locking member 3, the limiting plate 13 does not need to fix the locking member 3, so the thickness of the limiting plate 13 may be smaller than the thickness of the extending portion 11, and since the engaging portion 12 of the present application is not provided on the extending portion 11, the extending lengths of the first extending arm 76 and the second extending arm 77 are not affected by the thickness of the extending portion 11, for example, in this embodiment, the extending lengths of the first extending arm 76 and the second extending arm 77 only need to satisfy the thickness of the limiting plate 13, so the extending length ranges of the first extending arm 76 and the second extending arm 77 are more flexible.

Referring to fig. 11 and 12, the latch 3 further includes a latch body 31 and a force application portion 35 connected to the latch body 31, and the first latch portion 3121 is disposed on the latch body 31. In this embodiment, the latch body 31 has a flat plate portion 311 and two protruding portions 312. The two first locking portions 3121 are respectively located at the two protruding portions 312, and the urging portion 35 is located outside the extending portion 11. The locking piece 3 further includes two limiting portions 33, two elastic supporting arms 34, two fixing arms 32, and two supporting points 36, wherein the two limiting portions 33 are accommodated in the extending portion 11, the elastic supporting arms 34 extend toward the inner side 111 of the extending portion 11 and are abutted to the inner side 111 of the extending portion 11, the two fixing arms 32 are respectively located at two sides of the force applying portion 35 and are fixed to the extending portion 11, and the two supporting points 36 are abutted to the first insulating body 1.

In this embodiment, when the force application portion 35 is stressed, the latch 3 prys the first latch portion 3121 about the fulcrum 36 according to the lever principle, so that the first latch portion 3121 deforms in the second direction Y in a direction away from the abutting portion 21, the elastic supporting arm 34 is pressed toward the inner side 111 of the extension portion 11 and abuts against the inner side 111 of the extension portion 11, and the limiting portion 33 allows a certain range of movement in the second direction Y within the extension portion 11, limiting the deformation degree of the latch 3; when the force applied to the force applying portion 35 is reduced, the elastic supporting arm 34 provides a restoring force for restoring, so as to drive the first locking portion 3121 to gradually restore. The fixing arm 32 of the present embodiment is bent and extended from the flat plate portion 311 to form a U-shaped arm fastened and fixed on the extension portion 11. In other embodiments, the latch 3 is not necessarily provided with the elastic abutment arm 34 exclusively, but it is also possible to pass the restoring force by means of a U-shaped structure; the fixed arm 32 need not be a U-shaped arm, but may be other fixed structures; the limit part 33 may be set or removed according to actual needs.

Referring to fig. 1 and fig. 5 to fig. 7, the extension portion 11 is provided with two through holes 113, the two through holes 113 expose the two first locking portions 3121 along the second direction Y, the first locking portions 3121 are openings, and the first locking portions 3121 allow the second locking portions 75 to enter and be locked in a matching manner. The through hole 113 facilitates the observation of the relative positions of the first locking portion 3121 and the second locking portion 75, and the first locking portion 3121 is an opening through which it is possible to further observe whether the second locking portion 75 enters into or exits from the opening, so that it is convenient to determine whether the first locking portion 3121 and the second locking portion 75 are successfully locked or unlocked.

Referring to fig. 7, in the present embodiment, the first locking portion 3121 is an opening, an elastically deforming space G3 is provided between the first locking portion 3121 and the inner side 111 of the extension portion 11 for the first locking portion 3121 to move, and the first locking portion 3121 allows the second locking portion 75 to enter in a direction of the elastically deforming space G3. Therefore, compared to the second locking portion 75 being an opening for the first locking portion 3121 to enter, the present application requires providing a space for letting out the first locking portion 3121 in the second connector 200, and the present application can simultaneously use the elastic deformation space G3 originally provided for deforming the locking member 3 to let out the second locking portion 75 without providing a space for letting out the first locking portion 3121 in the second connector 200 and without additionally providing a space for letting out the second locking portion 75 in the first connector 100.

Referring to fig. 1, 2 and 6, the first locking portion 3121 is an opening, the second locking portion 75 is a hook, the inner side of the limiting plate 13 is used for limiting the movement of the second connector 200 along the second direction Y, the limiting plate 13 has two yielding grooves 131 extending from the end thereof along the first direction Z, and the yielding grooves 131 are used for accommodating the second locking portion 75 of the first wall 71 or the second locking portion 75 of the second wall 72. Therefore, on the basis of realizing forward and reverse plugging of the first connector 100 and the second connector 200 and limiting the second connector 200 by the limiting plate 13, the second locking portion 75 of the first wall 71 or the second wall 72 is prevented from being scratched by the abdication groove 131, and a certain guiding function is achieved in the abutting process of the first connector 200 and the second connector 200.

In the present embodiment, the mating portion 21 of the first connector 100 is shaped like a tongue plate, and the second connector 200 is shaped like a slot; however, in other embodiments, the mating portion 21 may be slot-shaped, the second connector 200 may be provided with a tongue plate to mate with the mating portion 21, and the second insulating body 6 may still be provided with a receiving cavity 65 to receive the mating portion 21.

In this embodiment, the transmission member 2 is made of an insulating material and the first terminal 23 is formed by molding and injection molding, and in other embodiments, the transmission member 2 may be in other forms, which is not limited herein. For example, the transmission member 2 is an insulating material and the first terminal 23 are formed by assembly and insertion; or the transmission member 2 is a circuit board, and the first terminal 23 is formed by etching a metal plating material and is fixed on a base material of the circuit board; or the connection portion 232 of the first terminal 23 is a wire, and the contact portion 231 and the conductive portion 233 are connected by a wire.

In this embodiment, the abutting portion 21 of the transmission member 2 is of a separate structure from the first insulating body 1, in other embodiments, the abutting portion 21 may be integrally formed with the first insulating body 1, and no separate transmission member 2 may be provided, such as injection molding of the first terminal 23 and the insulating material, so that the first insulating body 1 and the abutting portion 21 are formed.

It should be noted that, the number of the first locking portions 3121, the through hole 113, the fixing arm 32, the elastic supporting arm 34, the supporting point 36, the limiting portion 33, and the yielding groove 131 is not limited to two in this embodiment, and the number of the second locking portions 75 on each side is not limited to two in this embodiment, and may be one or more than two according to actual needs.

In this embodiment, the engaging portion 12 is in a groove shape, and in other embodiments, the engaging portion 12 may be in other forms, for example, the engaging portion 12 may be a local surface of a certain structure in the first insulating body 1 (for example, the engaging portion 12 may be a local part of an outer side surface of the limiting plate 13, and the first extension arm 76 is fastened to a certain position of the outer side surface of the limiting plate 13). In the present embodiment, the metal shell 7 has two completely separated first extension arms 76 located on both sides in the third direction X, respectively; in other embodiments, two ends of a first extension arm 76 are respectively connected to two ends of the first wall 71, or two ends of a first extension arm 76 are respectively connected to the third wall 73 and the fourth wall 74, a cavity is formed between the first extension arm 76 and the second insulating body 6, the first extension arm 76 is fastened into a strip-shaped concave joint portion 12 of the accommodating portion 14 or fastened to an outer side surface of the limiting plate 13, and the cavity is used for accommodating a part of the material of the accommodating portion 14 or the limiting plate 13 after the first extension arm 76 is fastened to the joint portion 12. In addition, in other embodiments, it is also possible that the engaging portion 12 is hole-shaped, and the first extension arm 76 enters the engaging portion 12, however, other embodiments of the first extension arm 76 and the engaging portion 12 are possible other than the exemplary embodiment of the present application, and are not limited herein.

In summary, the connector assembly and the wire end connector of the present application have the following advantages:

1. the first locking portion 3121 of the present application is exposed on the inner side 111 of the extension portion 11, and is locked with the second locking portion 75 between the inner side 111 of the extension portion 11 and the abutting portion 21, and the first locking portion 3121 and the second locking portion 75 are not exposed on the outer side 112 of the extension portion 11, so that the first locking portion 3121 and the second locking portion 75 can be prevented from being damaged by a collision deformation; and when the first connector 100 receives the hanging force, the first extension arm 76 and the joint portion 12 are fastened to each other, so as to reduce the risk of the first connector 100 being separated from the second connector 200 after receiving the hanging force.

2. The engagement portion 12 is located closer to the end of the abutment portion 21 than the abutment surface 18 along the first direction Z, so that the position between the first extension arm 76 and the engagement portion 12 can be located farther from the first connector 100 and closer to the second connector 200, i.e. closer to the position where the first connector 100 and the second connector 200 are combined, increasing the difficulty of disengaging the second connector 200 from the engagement portion 12 when the first connector 100 is subjected to a hanging weight.

3. The first extension arm 76 or the second extension arm 77 is fastened to the joint 12, and viewed along the third direction X, the projection of the first extension arm 76 or the projection of the second extension arm 77 is located in the projection of the extension 11, the first connector 100 and the second connector 200 can achieve forward and backward plugging, and the first extension arm 76 and the second extension arm 77 are fastened to the joint to resist the hanging tension force during forward and backward plugging, so that the first extension arm 76 and the second extension arm 77 can be prevented from being arranged to increase the overall dimension of the first connector 100 and the second connector 200 along the second direction Y after the butt joint is completed.

The above detailed description is merely illustrative of the preferred embodiments of the invention and is not intended to limit the scope of the invention, so that all equivalent technical changes that can be made by the present specification and illustrations are included in the scope of the invention.

Claims (16)

1. A connector assembly comprising a first connector and a second connector which are mated with each other in a first direction, characterized in that,

the first connector comprises a first insulating body, a locking piece and a butting part connected with the first insulating body, wherein the butting part extends along the first direction, the first insulating body is provided with a first accommodating space, a joint part and an extension part extending along the first direction, the extension part is provided with an outer side and an inner side which are oppositely arranged along the second direction, the joint part and the extension part are respectively positioned at two sides of the butting part along the second direction, the first accommodating space is positioned between the butting part and the inner side of the extension part along the second direction, the locking piece is fixed on the extension part and is provided with at least one first locking part, the first locking part is exposed at the inner side of the extension part, and the first direction and the second direction are perpendicular;

The second connector comprises a second insulating body and a metal shell, wherein the second insulating body is provided with a containing cavity and a first side surface, the metal shell is provided with a first wall body and a first extension arm extending along the second direction, the first wall body is provided with at least one second locking part, and the inner surface of the first wall body is adjacently arranged on the first side surface;

when the first connector and the second connector are in butt joint and the first wall body enters the first accommodating space, the butt joint part is accommodated in the accommodating cavity, the outer surface of the first wall body faces to the inner side of the extension part, the first locking part and the second locking part of the first wall body are locked with each other, and the first extension arm is locked with the joint part.

2. The connector assembly of claim 1, wherein the first insulating body further comprises a limiting plate extending along the first direction, the limiting plate and the extending portion being located on opposite sides of the mating portion along the second direction, the first insulating body further having a second receiving space for receiving at least a portion of the second connector, the second receiving space being located between the mating portion and an inner side of the limiting plate along the second direction, the inner side of the limiting plate and the inner side of the extending portion being configured to limit movement of the second connector along the second direction.

3. The connector assembly of claim 2, wherein the first insulating body further has a receiving portion extending in the second direction in a direction away from the extending portion, the receiving portion being configured to receive a cable, at least a portion of the receiving portion being connected to the limiting plate, the engaging portion being in a groove shape and being located at a connection position between the limiting plate and the receiving portion, the limiting plate extending beyond the receiving portion in the first direction, the first extending arm being at least partially received into the engaging portion when the first connector and the second connector are mated and the first wall is received into the first receiving space.

4. The connector assembly of claim 1, wherein the second insulative housing further has a second side disposed opposite the first side along the second direction, the metal shell further has a second extension arm and a second wall disposed opposite the first wall along the second direction, the second wall has at least one second locking portion, an inner surface of the second wall is disposed adjacent the second side, and the first extension arm and the second extension arm extend beyond the second wall and the first wall, respectively, along the second direction;

When the first connector and the second connector are in butt joint and the second wall body enters the first accommodating space, the outer surface of the second wall body faces the inner side of the extension part, the first locking part and the second locking part of the second wall body are locked with each other, and the second extension arm is locked with the joint part;

and defining a third direction perpendicular to the first direction and the second direction, wherein when the first connector and the second connector are in butt joint, the projection of the first extension arm or the second extension arm is positioned in the projection of the extension part as seen along the third direction.

5. The connector assembly of claim 4, wherein the first locking portion is an opening, the second locking portion is a hook, the first insulating body further includes a limiting plate extending along the first direction, the limiting plate and the extending portion are respectively located at two sides of the abutting portion along the second direction, the inner side of the limiting plate is used for limiting the movement of the second connector along the second direction, the limiting plate has at least one yielding groove extending from the end of the limiting plate along the first direction, and the yielding groove is used for accommodating the second locking portion of the first wall body or the second locking portion of the second wall body.

6. The connector assembly of claim 1, wherein the second insulative body has a mating end face oriented toward the first connector in the first direction, and wherein the first extension arm is positioned closer to the end of the extension portion than the mating end face in the first direction when the first connector and the second connector are mated.

7. The connector assembly of claim 1, wherein the metal shell further has a second wall disposed opposite the first wall along the second direction defining a third direction perpendicular to the first direction and the second direction, and a third wall and a fourth wall disposed opposite the third direction, each of the third wall and the fourth wall being connected between the first wall and the second wall, the first extension arm being torn from the second wall and being stamped and formed, the root of the first extension arm being connected to the third wall.

8. The connector assembly of claim 7, wherein a first end and a second end of the first wall body opposite to each other along the third direction are respectively connected with the third wall body and the fourth wall body, the first end of the first wall body is provided with a first positioning portion, the first end and the second end of the second wall body opposite to each other along the third direction are respectively connected with the third wall body and the fourth wall body, and the first end of the second wall body is provided with a second positioning portion;

The third wall body is provided with a third positioning part, and the first positioning part, the second positioning part and the third positioning part are all used for being fixedly connected with a second electronic element;

the metal shell is provided with a fixing part connected with the third wall body, and the fixing part is fixed with the second insulating body.

9. The connector assembly of claim 1, wherein the latch member has two first latching portions, the first wall has two second latching portions, the metal shell is formed with the first wall, a second wall, a third wall and a fourth wall by an integral sheet, the second wall is disposed opposite to the first wall along the second direction, a third direction is defined perpendicular to the first direction and the second direction, and the third wall and the fourth wall are disposed opposite along the third direction and are connected between the first wall and the second wall;

the metal shell is provided with a combination part, and the combination part is close to the third wall body or the fourth wall body along the third direction relative to the two second locking parts.

10. A wire end connector for mating with a mating connector in a first direction, comprising:

A transmission member having a connection portion for connecting the cables and a mating portion extending in the first direction for mating with the mating connector;

the transmission part is fixed by the insulation body, the insulation body is provided with a first accommodating space, an extension part and a joint part, the extension part extends along the first direction, the extension part is provided with an outer side and an inner side which are oppositely arranged along the second direction, the first accommodating space is used for accommodating at least part of the butt joint connector and is positioned between the inner side of the extension part and the butt joint part along the second direction, the joint part and the extension part are positioned on two sides of the butt joint part along the second direction, the joint part is used for mutually buckling with the butt joint connector, and the first direction and the second direction are mutually perpendicular;

the locking piece is fixed on the extension part and is provided with a locking main body and a force application part connected with the locking main body, the locking main body is provided with at least one first locking part exposed on the inner side of the extension part, and the first locking part is used for locking with a second locking part of the butt joint connector between the inner side of the extension part and the butt joint part.

11. The wire end connector of claim 10, wherein said housing further comprises a stop plate extending in said first direction, said stop plate and said extension being located on opposite sides of said mating portion in said second direction, respectively, said first connector having a second receiving space for receiving at least a portion of said mating connector, said second receiving space being located between said mating portion and an inner side of said stop plate in said second direction.

12. The wire end connector of claim 11, wherein said housing further has a receiving portion extending in said second direction away from said extending portion, said receiving portion being adapted to receive a cable and said wire connection portion, at least a portion of said receiving portion being connected to said retainer plate, said engagement portion being recessed and located at a connection location between said retainer plate and said receiving portion, said retainer plate extending in said first direction beyond said receiving portion, said engagement portion being adapted to receive and retain at least a portion of said mating connector.

13. The line end connector of claim 10, wherein said first locking portion is configured to be locked with said second locking portion on either side of said second locking portion on opposite sides of said mating connector in said second direction, said engaging portion is configured to be locked with said extending arm on either side of an extending arm on opposite sides of said mating connector in said second direction, a distance between said engaging portion and said mating portion in said second direction is defined as a first distance, a distance between an outer side of said extending portion and said mating portion in said second direction is defined as a second distance, and said first distance is not greater than said second distance, as viewed in a third direction perpendicular to said first direction and said second direction.

14. The wire end connector of claim 10, wherein the first locking portion is an opening, an elastically deforming space is provided between the first locking portion and the inner side of the extending portion for the first locking portion to move, and the first locking portion is provided for the second locking portion to enter in a direction of the elastically deforming space.

15. The wire end connector of claim 14, wherein said first locking portion is configured to be locked with one of said second locking portions on opposite sides of said mating connector in said second direction, said insulative housing further comprises a limiting plate extending in said first direction, said limiting plate and said extension being located on opposite sides of said mating portion in said second direction, respectively, an inner side of said limiting plate being configured to limit movement of said mating connector in said second direction, said limiting plate having at least one relief groove extending from an end thereof in said first direction, said relief groove being configured to receive said second locking portion on the other side.

16. The wire end connector of claim 10 wherein said housing has a mating surface facing said mating connector in said first direction, said mating portion extending beyond said mating surface in said first direction, defining a third direction perpendicular to said first direction and said second direction, projection in said third direction, said engagement portion being proximate an end of said mating portion relative to said mating surface in said first direction, and an end of said mating portion extending beyond said engagement portion in said first direction.