CN220291159U - Connector - Google Patents

Abstract

The utility model relates to a connector, comprising a socket assembly and a plug assembly, wherein the socket assembly comprises a socket body and a first terminal; the plug assembly comprises a plug body, a second terminal and a limiting piece, wherein the plug body is provided with an insertion hole, the inner wall of the insertion hole is provided with a first elastic abutting portion, the limiting piece is provided with a second elastic abutting portion, the second terminal is provided with a first clamping groove and a second clamping groove, the first elastic abutting portion is clamped in the first clamping groove, the limiting piece is inserted into the plug body, the second elastic abutting portion is clamped in the second clamping groove, the first terminal is inserted into the second terminal, and the second terminal is clamped in the insertion hole by the first elastic abutting portion and the second elastic abutting portion. In the connector disclosed by the utility model, the first elastic abutting part is clamped in the first clamping groove, and the second elastic abutting part is clamped in the second clamping groove, so that the second terminal is clamped in the jack by the first elastic abutting part and the second elastic abutting part, and further, the second terminal is prevented from being withdrawn from the jack after being aged and failed only by the first elastic abutting part.

Description

Connector

Technical Field

The utility model relates to the technical field of new energy automobiles, in particular to a connector.

Background

In the prior art, along with the rapid increase of the yield of new energy automobiles, the process of intelligent upgrading of the automobiles is also continuously advanced, a connector of a key component plays an important role as a pivot for signal or energy transmission, the assembled connector is required to have excellent contact performance, particularly, when terminals of the connector are plugged, the terminal is easy to generate a withdrawal phenomenon due to interaction force between the terminals, the electrical connection performance of the connector is influenced, and an abutting part is aged and then fails elastically, so that the firmness of plugging the terminal in a plug body is reduced, and the problem that the terminal is withdrawn due to the fact that the terminal is aged and not firmly clamped by the abutting part in the plug is solved.

Disclosure of Invention

The utility model aims to provide a connector, which aims to solve the problem that a terminal is retracted caused by the fact that a single through-plug inner abutting part is used for clamping a terminal and is not firm in aging.

In order to solve the technical problems, the connector comprises a socket assembly and a plug assembly, wherein the socket assembly comprises a socket body and a first terminal, the socket body forms a socket and a containing cavity, the socket is communicated with the containing cavity, one end of the first terminal is far away from the socket to be plugged into the socket body, and the other end of the first terminal is positioned in the containing cavity; the plug assembly comprises a plug body, a second terminal and a limiting piece, wherein the plug body is provided with a jack, a first elastic abutting part is arranged on the inner wall of the jack along the direction of the jack, a second elastic abutting part is arranged on the limiting piece, a first clamping groove and a second clamping groove are formed in the second terminal, and the first clamping groove and the second clamping groove are arranged at intervals; when the second terminal is inserted into the jack, the first elastic abutting portion is clamped in the first clamping groove, the limiting piece is inserted into the plug body, the second elastic abutting portion is clamped in the second clamping groove, when the plug body is inserted into the socket body, the first terminal is inserted into the second terminal, and the second terminal is clamped in the jack by the first elastic abutting portion and the second elastic abutting portion.

Further, the direction of inserting the limiting piece into the plug is a first direction, the direction of inserting the second terminal into the jack is a second direction, and the direction of inserting the plug body into the socket body is a third direction, wherein the first direction, the second direction and the third direction are in the same direction.

Further, the locating part includes connector and extension arm, the extension arm connect in the both ends of connector, connect between the extension arm the connector is connected the second elasticity butt portion, the end of extension arm is equipped with first bellying, the both sides of the plug body are equipped with the slotted hole, just the inner wall of slotted hole is formed with the cooperation the second bellying of first bellying, so that the locating part joint in the plug body.

Further, the second elastic abutting portion is provided with a positioning groove, the inner wall of the jack is convexly provided with a positioning portion, and when the limiting piece is clamped to the plug body, the positioning portion is guided into the positioning groove.

Further, at least two second elastic abutting portions are arranged on the connector at intervals, at least two jacks are formed in the plug body, each jack is inserted with the second terminal, and each second terminal is abutted to the jack by the second elastic abutting portions.

Further, the adjacent three second elastic butt portions are respectively formed with a first hollow groove and a second hollow groove at intervals, wherein the length of the first hollow groove is smaller than that of the second hollow groove, the plug body is provided with a plurality of partition boards at intervals, insertion holes are formed between the partition boards, and the partition boards and the inner wall of the plug body are provided with first grooves adapted to the first hollow grooves and second grooves adapted to the second hollow grooves at intervals.

Further, the extension arm is formed with the spacing groove, the spacing groove orientation the connector sets up, the protruding stopper that is equipped with of plug body, the stopper is located the slotted hole, works as the locating part joint in the plug body, the stopper is located the spacing groove.

Further, the second terminal comprises a terminal body and a fool-proof portion, the terminal body is provided with a first clamping groove and a second clamping groove, the fool-proof portion is located on one side of the first clamping groove, the plug body is provided with a fool-proof groove communicated with the jack, and when the second terminal is inserted into the jack, the fool-proof portion slides in the fool-proof groove.

Further, the plug body further comprises a buckling part, the socket body is provided with a buckling groove, and when the plug body is inserted into the socket body, the buckling part is clamped in the buckling groove; the side wall of the accommodating cavity is convexly provided with a sliding strip and a corner part connected to one end of the sliding strip, the sliding strip extends from the socket to the accommodating cavity, and the corner part is far away from the socket and arranged on the inner bottom wall of the accommodating cavity, so that the corner part is abutted to one end of the plug body.

Further, the socket body includes the bayonet lock, the one end of first terminal keep away from the socket peg graft in the socket body, the bayonet lock is close to the one end setting of first terminal, the bayonet lock is used for joint circuit board, wherein, the one end of first terminal with the circuit board electricity is connected.

The implementation of the embodiment of the utility model has the following beneficial effects:

in the connector of the embodiment, since the first elastic abutting portion is clamped in the first clamping groove, and the second elastic abutting portion is clamped in the second clamping groove, when the plug body is plugged in the socket body, the second terminal is clamped in the jack by the first elastic abutting portion and the second elastic abutting portion, and further the problem that the abutting portion is easy to age and retract when the terminal is used for a long time in the prior art due to the fact that the second terminal is withdrawn from the jack only after the first elastic abutting portion is aged and loses efficacy is avoided.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a connector according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a connector according to an embodiment of the present utility model;

fig. 3 is a schematic view of a first view structure of a limiting member according to an embodiment of the present utility model;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

fig. 5 is a schematic view of a second view structure of a limiting member according to an embodiment of the present utility model;

fig. 6 is a schematic structural view of a second terminal according to an embodiment of the present utility model;

fig. 7 is a schematic structural view of a plug body according to an embodiment of the present utility model;

fig. 8 is a front view of a plug body according to an embodiment of the present utility model;

FIG. 9 is a cross-sectional view at B-B in FIG. 8;

fig. 10 is a schematic structural view of a socket body according to an embodiment of the present utility model;

fig. 11 is a schematic structural diagram of a connector with the circuit board according to an embodiment of the utility model.

Wherein: 100. a connector; 110. a receptacle assembly; 111. a socket body; 1111. a socket; 1112. a receiving chamber; 1113. a buckling groove; 1114. a slide bar; 1115. a corner; 1116. a bayonet lock; 112. a first terminal; 120. a plug assembly; 121. a plug body; 1211. a jack; 12111. a positioning part; 1212. a first elastic abutment; 1213. a slot hole; 12131. a second protruding portion; 1214. a partition plate; 12141. a first groove; 12142. a second groove; 1215. a limiting block; 1216. a fool-proof groove; 1217. a buckling part; 122. a second terminal; 1221. a first clamping groove; 1222. a second clamping groove; 1223. a terminal body; 1224. a fool-proof part; 123. a limiting piece; 1231. a second elastic abutment; 12311. a positioning groove; 1232. a connecting body; 12321. a first hollow groove; 12322. a second hollow groove; 1233. an extension arm; 12331. a first boss; 12332. and a limit groove.

Detailed Description

In order that the utility model may be readily understood, a more complete description of the utility model will be rendered by reference to the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-11, an embodiment of the present utility model provides a connector 100, including a socket assembly 110 and a plug assembly 120, where the socket assembly 110 includes a socket body 111 and a first terminal 112, the socket body 111 forms a socket 1111 and a receiving cavity 1112, the socket 1111 is in communication with the receiving cavity 1112, one end of the first terminal 112 is far away from the socket 1111 to plug in the socket body 111, and the other end of the first terminal 112 is located in the receiving cavity 1112; the plug assembly 120 comprises a plug body 121, a second terminal 122 and a limiting piece 123, wherein the plug body 121 is provided with an inserting hole 1211, a first elastic abutting part 1212 is arranged on the inner wall of the inserting hole 1211 along the inserting hole 1211 direction, a second elastic abutting part 1231 is arranged on the limiting piece 123, a first clamping groove 1221 and a second clamping groove 1222 are formed in the second terminal 122, and the first clamping groove 1221 and the second clamping groove 1222 are arranged at intervals; when the second terminal 122 is inserted into the jack 1211, the first elastic contact portion 1212 is clamped to the first clamping groove 1221, the limiting member 123 is inserted into the plug body 121, the second elastic contact portion 1231 is clamped to the second clamping groove 1222, when the plug body 121 is inserted into the socket body 111, the first terminal 112 is inserted into the second terminal 122, and the second terminal 122 is clamped to the jack 1211 by the first elastic contact portion 1212 and the second elastic contact portion 1231. In particular applications, the first terminal 112 far away from the socket 1111 is electrically connected to the circuit board, the first terminal 112 located in the accommodating cavity 1112 is plugged into the second terminal 122, and when the second terminal 122 is inserted into the socket 1211, the first elastic abutting portion 1212 provided on the inner wall of the socket 1211 is clamped in the first clamping groove 1221, so that the second terminal 122 is abutted in the plug body 121, and when the connector 100 is used for a long time, the first elastic abutting portion 1212 is prone to aging failure, so that the second terminal 122 cannot be abutted in the plug body 121 by the first elastic portion, and the second terminal 122 plugged in the plug body 121 is withdrawn from the socket 1211, thereby affecting the electrical contact performance of the first terminal 112 and the second terminal 122, and therefore, when the limiting member 123 is plugged in the plug body 121, the second elastic abutting portion 1231 on the limiting member 123 abuts the second terminal 122 in the second clamping groove 1222, and thus the first elastic abutting portion 1212 and the second elastic abutting portion 1231 form locking, so that the second terminal 122 is locked in the socket 1211 more firmly.

In one possible embodiment, the plug direction of the limiting member 123 is a first direction, the direction of inserting the second terminal 122 into the insertion hole 1211 is a second direction, and the direction of inserting the plug body 121 into the socket body 111 is a third direction, wherein the first direction, the second direction, and the third direction are the same direction. In particular applications, in order to improve the assembly and connection efficiency of the connector 100, the second terminal 122 is inserted into the insertion hole 1211, then the limiting member 123 is inserted into the plug, and finally the plug body 121 assembled with the second terminal 122 and the limiting member 123 is inserted into the socket body 111, so that the first direction, the second direction and the third direction are set to be the same direction, which can improve the assembly efficiency.

In one possible embodiment, the limiting member 123 includes a connecting body 1232 and an extension arm 1233, the extension arm 1233 is connected to two ends of the connecting body 1232, the connecting body 1232 between the extension arms 1233 is connected to the second elastic abutment portion 1231, the end of the extension arm 1233 is provided with a first protruding portion 12331, two sides of the plug body 121 are provided with slots 1213, and the inner wall of the slot 1213 is formed with a second protruding portion 12131 matching with the first protruding portion 12331, so that the limiting member 123 is clamped to the plug body 121. In a specific application, in order to make the limiting member 123 clamped on the plug body 121, the extension arms 1233 are connected to two ends of the connection body 1232, the connection body 1232 between the extension arms 1233 is connected to the second elastic abutment 1231, the end of the extension arm 1233 is provided with a first protrusion 12331, two sides of the plug body 121 are provided with slots 1213, and the inner walls of the slots 1213 are formed with second protrusions 12131 matching the first protrusions 12331, so that the limiting member 123 is locked on the plug body 121 by the first protrusions 12331 and the second protrusions 12131, and the second elastic abutment 1231 on the connection body 1232 more firmly abuts the second terminal 122 in the plug body 121.

In one possible embodiment, the second elastic abutment portion 1231 is formed with a positioning groove 12311, the inner wall of the insertion hole 1211 is convexly provided with a positioning portion 12111, and when the limiting member 123 is clamped to the plug body 121, the positioning portion 12111 is guided into the positioning groove 12311. In a specific application, in order to smoothly insert the limiting member 123 into the socket body 111, the second elastic abutment portion 1231 is formed with a positioning groove 12311, the inner wall of the insertion hole 1211 is convexly provided with a positioning portion 12111, when the limiting member 123 is clamped to the plug body 121, the positioning portion 12111 is guided into the positioning groove 12311, in addition, the second elastic abutment portion 1231 can be clamped into the second clamping groove 1222 more accurately through the guiding of the positioning portion 12111 and the positioning groove 12311, so that the second elastic abutment portion 1231 is prevented from not abutting into the second clamping groove 1222 of the second terminal 122.

In one possible embodiment, at least two second elastic abutment portions 1231 are disposed on the connecting body 1232 at intervals, at least two insertion holes 1211 are formed in the plug body 121, and each insertion hole 1211 is plugged with a second terminal 122, and the second elastic abutment portions 1231 respectively abut each second terminal 122 against the insertion hole 1211. In particular, in order to improve stability of power connection or diversity of signal transmission, a plurality of first terminals 112 and second terminals 122 are connected to form multi-point contact, so at least two second elastic abutting portions 1231 are provided at intervals on the connecting body 1232, at least two insertion holes 1211 are formed in the plug body 121, each insertion hole 1211 is plugged with a second terminal 122, and each second terminal 122 is abutted by the second elastic abutting portion 1231 to each insertion hole 1211.

In one possible embodiment, the adjacent three second elastic abutting portions 1231 are respectively formed with a first hollow groove 12321 and a second hollow groove 12322 at intervals, wherein the length of the first hollow groove 12321 is smaller than that of the second hollow groove 12322, the plug body 121 is provided with a plurality of partition plates 1214 at intervals, insertion holes 1211 are formed between the partition plates 1214, and the partition plates 1214 and the inner wall of the plug body 121 are formed with a first groove 12141 adapted to the first hollow groove 12321 and a second groove 12142 adapted to the second hollow groove 12322 at intervals. In a specific application, in order to improve the elasticity between the second elastic abutting portion 1231 and the connecting body 1232, a hollow groove is formed between the second elastic abutting portion 1231, considering the connection strength between the second elastic abutting portion 1231 and the connecting body 1232, therefore, the adjacent three second elastic abutting portions 1231 are respectively formed with a first hollow groove 12321 and a second hollow groove 12322 at intervals, wherein the length of the first hollow groove 12321 is smaller than that of the second hollow groove 12322, so that the elasticity of the second elastic abutting portion 1231 can be improved, the connection strength of the second elastic abutting portion 1231 can be ensured, and the breakage failure phenomenon of the overlong second elastic abutting portion 1231 can be avoided.

In one possible embodiment, the extension arm 1233 is formed with a limiting groove 12332, the limiting groove 12332 is disposed towards the connection body 1232, the plug body 121 is convexly provided with a limiting block 1215, the limiting block 1215 is located in the slot 1213, and when the limiting block 1215 is clamped to the plug body 121, the limiting block 1215 is clamped to the limiting groove 12332. In a specific application, in order to further improve the strength of the limiting member 123 clamped to the plug body 121, the extending arm 1233 is formed with a limiting groove 12332, the limiting groove 12332 is disposed towards the connecting body 1232, the plug body 121 is convexly provided with a limiting block 1215, the limiting block 1215 is located in the slot 1213, and when the limiting block 1215 is clamped to the plug body 121, the limiting block 1215 is clamped to the limiting groove 12332, so that the inner side surface of the limiting member 123 can be locked by the outer side surface of the plug body 121 through the limiting block 1215 clamped in the limiting groove 12332.

In one possible embodiment, the second terminal 122 includes a terminal body 1223 and a fool-proof portion 1224, the terminal body 1223 is formed with a first card slot 1221 and a second card slot 1222, the fool-proof portion 1224 is located at one side of the first card slot 1221, the plug body 121 is formed with a fool-proof slot 1216 communicating with the jack 1211, and the fool-proof portion 1224 slides in the fool-proof slot 1216 when the second terminal 122 is plugged into the jack 1211. In particular applications, in order to avoid the reverse insertion of the second terminal 122 into the jack 1211 and affect the assembly efficiency of the connector 100, the terminal body 1223 is formed with a first slot 1221 and a second slot 1222, the fool-proof portion 1224 is located at one side of the first slot 1221, the plug body 121 is formed with a fool-proof slot 1216 communicating with the jack 1211, and when the second terminal 122 is inserted into the jack 1211, the fool-proof portion 1224 slides in the fool-proof slot 1216, so that the assembly of the second terminal 122 on the jack 1211 is efficiently identified by the cooperation of the fool-proof portion 1224 and the fool-proof slot 1216.

In one possible embodiment, the plug body 121 further includes a locking portion 1217, the socket body 111 is formed with a locking groove 1113, and when the plug body 121 is inserted into the socket body 111, the locking portion 1217 is locked to the locking groove 1113; the side wall of the accommodating cavity 1112 is convexly provided with a sliding bar 1114 and a corner 1115 connected with one end of the sliding bar 1114, the sliding bar 1114 extends from the jack 1111 to the accommodating cavity 1112, and the corner 1115 is arranged on the inner bottom wall of the accommodating cavity 1112 far away from the jack 1111, so that the corner 1115 is abutted against one end of the plug body 121. In particular applications, in order to enable the plug body 121 to be plugged into the socket body 111 to be fastened, the plug body 121 further includes a fastening portion 1217, the socket body 111 is formed with a fastening groove 1113, and when the plug body 121 is plugged into the socket body 111, the fastening portion 1217 is fastened to the fastening groove 1113; in addition, in order to enable the plug body 121 to be smoothly plugged into the socket body 111, a sliding bar 1114 is convexly arranged on the side wall of the accommodating cavity 1112, and the sliding bar 1114 extends from the socket 1111 to the accommodating cavity 1112, so that the contact area between the plug body 121 and the side wall of the accommodating cavity 1112 can be reduced, wherein the tail end of the sliding bar 1114 is connected with a corner 1115, and when the plug body 121 enters the accommodating cavity 1112 from the socket 1111, the tail end of the plug body 121 can be blocked from being transitionally deep by the corner 1115 in order to prevent the damage to the electrical contact performance of the first terminal 112 and the second terminal 122 caused by severe plugging.

In one possible embodiment, the receptacle body 111 includes a bayonet 1116 with one end of the first terminal 112 remote from the socket 1111

The socket body 111 is plugged, and the locking pin 1116 is disposed near one end of the first terminal 112, wherein the locking pin 1116 is used for locking the circuit board, and one end of the first terminal 112 is electrically connected with the circuit board. In a specific application, in order to install the circuit board on the socket body 111, the socket body 111 includes a bayonet 1116, one end of the first terminal 112 is far away from the socket 1111 and is plugged into the socket body 111, the bayonet 1116 is near to one end of the first terminal 112, and the bayonet 1116 is used for clamping the circuit board, so as to prevent the unstable electrical connection between the first terminal 112 and the circuit board when the circuit board is loose.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A connector, comprising:

the socket assembly comprises a socket body and a first terminal, the socket body forms a socket and a containing cavity, the socket is communicated with the containing cavity, one end of the first terminal is far away from the socket to be plugged into the socket body, and the other end of the first terminal is located in the containing cavity;

the plug assembly comprises a plug body, a second terminal and a limiting piece, wherein the plug body is provided with a jack, a first elastic abutting part is arranged on the inner wall of the jack along the direction of the jack, a second elastic abutting part is arranged on the limiting piece, a first clamping groove and a second clamping groove are formed in the second terminal, and the first clamping groove and the second clamping groove are arranged at intervals;

when the second terminal is inserted into the jack, the first elastic abutting portion is clamped in the first clamping groove, the limiting piece is inserted into the plug body, the second elastic abutting portion is clamped in the second clamping groove, when the plug body is inserted into the socket body, the first terminal is inserted into the second terminal, and the second terminal is clamped in the jack by the first elastic abutting portion and the second elastic abutting portion.

2. The connector of claim 1, wherein the direction in which the retainer is inserted into the plug is a first direction, the direction in which the second terminal is inserted into the receptacle is a second direction, and the direction in which the plug body is inserted into the receptacle is a third direction, wherein the first direction, the second direction, and the third direction are the same direction.

3. The connector according to claim 2, wherein the limiting member comprises a connecting body and an extension arm, the extension arm is connected to two ends of the connecting body, the connecting body between the extension arms is connected to the second elastic abutting portion, a first protruding portion is arranged at the tail end of the extension arm, slots are formed in two sides of the plug body, and a second protruding portion matched with the first protruding portion is formed on the inner wall of the slot, so that the limiting member is clamped to the plug body.

4. A connector according to claim 3, wherein the second elastic abutment portion is formed with a positioning groove, and the inner wall of the insertion hole is convexly provided with a positioning portion, and the positioning portion is guided into the positioning groove when the stopper is engaged with the plug body.

5. The connector according to claim 4, wherein at least two of the second elastic abutting portions are provided at intervals in the connector body, at least two insertion holes are formed in the plug body, the second terminals are inserted into each of the insertion holes, and the second elastic abutting portions abut the second terminals against the insertion holes, respectively.

6. The connector of claim 5, wherein adjacent ones of the second resilient abutments are formed with first and second hollow grooves at intervals, respectively, wherein the first hollow groove is smaller than the second hollow groove in length, the plug body is provided with a plurality of partitions at intervals, the insertion holes are formed between the partitions, and the partitions and the inner wall of the plug body are formed with first and second grooves adapted to the first and second hollow grooves at intervals.

7. The connector of claim 6, wherein the extension arm is formed with a limit slot, the limit slot is disposed towards the connector, the plug body is convexly provided with a limit block, the limit block is located in the slot, and when the limit piece is clamped to the plug body, the limit block is clamped in the limit slot.

8. The connector according to claim 1, wherein the second terminal includes a terminal body formed with the first and second card grooves and a fool-proof portion located on one side of the first card groove, the plug body formed with a fool-proof groove communicating with the insertion hole, the fool-proof portion sliding in the fool-proof groove when the second terminal is inserted into the insertion hole.

9. The connector of claim 1, wherein the plug body further comprises a locking portion, the socket body is formed with a locking groove, and the locking portion is locked to the locking groove when the plug body is inserted into the socket body; the side wall of the accommodating cavity is convexly provided with a sliding strip and a corner part connected to one end of the sliding strip, the sliding strip extends from the socket to the accommodating cavity, and the corner part is far away from the socket and arranged on the inner bottom wall of the accommodating cavity, so that the corner part is abutted to one end of the plug body.

10. The connector of claim 1, wherein the socket body includes a bayonet, an end of the first terminal is plugged into the socket body away from the socket, the bayonet is disposed proximate to an end of the first terminal, and the bayonet is configured to be snapped into a circuit board, wherein an end of the first terminal is electrically connected to the circuit board.