Connector assembly

Abstract

The utility model relates to a connector assembly. The connector assembly comprises a male end connector and a female end connector which are arranged along a first direction. The male end connector comprises a male end shell, a male terminal and a conversion terminal; the male terminal extends along a first direction, the conversion terminal extends along a second direction, a first conversion end of the conversion terminal is electrically connected to a first connecting end of the male terminal, and a second conversion end of the conversion terminal is electrically connected to the battery equipment. The male terminal and the battery equipment are electrically connected through the conversion terminal, and the mounting direction of the male end connector and the battery equipment is changed, so that the mounting direction of the male end connector and the battery equipment is different from the assembling direction of the male end connector and the female end connector, and the assembling direction of the male end connector and the female end connector avoids a whole vehicle auxiliary frame; the female end connector and the male end connector are convenient to assemble, the assembling difficulty of the connector assembly is reduced, the connector assembly can adapt to the whole vehicle assembling scene, and the assembling applicability of the connector assembly is improved.

Description

Technical Field

[0001] The present application relates to the technical field of connectors, and in particular to a connector assembly. Background Art

[0002] With the advancement of electric vehicle technology, the driving range of power batteries is increasing, and therefore fast charging of power batteries has become a trend. Currently, the electrical connections for fast charging circuits have been upgraded from traditional flexible wires to aluminum busbars or aluminum rods. Compared to wires, connector assemblies adapted for aluminum busbars or aluminum rods generally use bolted connections to connect the male and female connectors to ensure contact stability. While this method is more reliable than bolted connections, it requires more assembly space on the vehicle.

[0003] The assembly direction of the male and female connectors of the current connector assembly used in power battery packs is the same as the installation direction of the male connector and the power battery pack. If the connector assembly is placed in front of or behind the power battery, the assembly of the female connector will be blocked by the vehicle subframe, and there will be no space for bolt installation, making it difficult to assemble the female and male connectors. Utility Model Content

[0004] The purpose of the present application is to provide a connector assembly that can solve the problem of the current connector assembly that the assembly of the female connector is blocked by the subframe of the vehicle, there is no space for bolt installation operation, and it is difficult to assemble.

[0005] In order to solve the above problems, the present application provides a connector assembly, which has a first direction and a second direction that intersect, and the connector assembly includes an electrically connected male connector and a female connector, and the male connector and the female connector are arranged along the first direction; the male connector includes: a male shell, a male terminal and a transfer terminal; the surface of the male shell on one side in the first direction is provided with a first accommodating groove and the surface on one side in the second direction is provided with a second accommodating groove, the first accommodating groove is connected to the second accommodating groove, and one end of the male shell provided with the second accommodating groove is connected to the battery device; the male terminal is arranged in the first accommodating groove and extends along the first direction, the male terminal has a first connection end and a second connection end in the first direction, and the second connection end is electrically connected to the female connector; the transfer terminal is arranged in the second accommodating groove and extends along the second direction, the transfer terminal has a first transfer end and a second transfer end in the second direction, the first transfer end is electrically connected to the first connection end, and the second transfer end is electrically connected to the battery device.

[0006] The male connector and female connector of the present application are arranged along a first direction, the male terminal is arranged in the first accommodating groove and extends along the first direction, the second connection end of the male terminal is electrically connected to the female connector, the adapter terminal is arranged in the second accommodating groove of the male shell and extends along the second direction, the first adapter end of the adapter terminal is electrically connected to the first connection end of the male terminal, and the second adapter end of the adapter terminal is electrically connected to the battery device. One end of the male shell provided with a second accommodating groove is connected to the battery device, and the male terminal and the battery device are electrically connected through the adapter terminal, thereby changing the installation direction of the male connector and the battery device, so that the installation direction of the male connector and the battery device is different from the assembly direction of the male connector and the female connector. In this way, the assembly direction of the male connector and the female connector can avoid the subframe of the vehicle, which is convenient for assembling the female connector and the male connector, reducing the assembly difficulty of the connector assembly, enabling the connector assembly to adapt to the assembly scenario of the vehicle, and improving the assembly applicability of the connector assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0008] Figure 1 is a schematic structural diagram of a connector assembly according to an embodiment of the present application;

[0009] Figure 2 is an exploded schematic diagram of a connector assembly according to an embodiment of the present application;

[0010] Figure 3 is a cross-sectional view of a connector assembly according to an embodiment of the present application;

[0011] Figure 4 This is a schematic structural diagram of the male end housing according to an embodiment of the present application;

[0012] Figure 5 is a schematic structural diagram of a male terminal according to an embodiment of the present application;

[0013] Figure 6 is a schematic structural diagram of a transfer terminal according to an embodiment of the present application;

[0014] Figure 7 This is a schematic diagram of the structure of the first insulating member of the embodiment of the present application. Figure 1 ;

[0015] Figure 8 This is a schematic diagram of the structure of the first insulating member of the embodiment of the present application. Figure 2 ;

[0016] Figure 9 is a schematic structural diagram of a second insulating member according to an embodiment of the present application;

[0017] Figure 10 It is a structural schematic diagram of the third insulating member of an embodiment of the present application.

[0018] Description of reference numerals:

[0019] 100. Connector assembly;

[0020] 1. Male connector; 2. Female connector;

[0021] 11. Male terminal housing; 12. Male terminal; 13. Adapter terminal; 14. First insulating member; 15. Second insulating member; 16. Third insulating member;

[0022] 111, first receiving groove; 112, second receiving groove; 113, bushing; 114, third rivet nut; 115, bolt;

[0023] 121, first connection end; 122, second connection end; 1211, external thread; 1221, internal thread; 1201, first male terminal; 1202, second male terminal;

[0024] 131, first adapter end; 132, second adapter end; 1311, first self-clinching nut; 1321, second self-clinching nut; 1301, first adapter terminal; 1302, second adapter terminal; 13021, first straight portion; 13022, second straight portion; 13023, inclined portion;

[0025] 141, first receiving groove; 142, second receiving groove; 143, through hole; 144, partition; 1411, third receiving groove; 1421, fourth receiving groove; 145, first fastener; 146, third fastener;

[0026] 151, first insulating plate; 152, insulating support portion; 153, second fastener; 161, fourth fastener;

[0027] 21. Female housing; 22. Female terminal; 23. Connecting terminal. DETAILED DESCRIPTION

[0028] The following describes in detail the preferred embodiments of the present application in conjunction with the accompanying drawings to fully introduce the technical content of the present application to those skilled in the art, to illustrate that the present application can be implemented, to make the technical content disclosed in the present application clearer, and to make it easier for those skilled in the art to understand how to implement the present application. However, the present application can be embodied in many different forms of embodiments, and the scope of protection of the present application is not limited to the embodiments mentioned herein. The description of the embodiments below is not intended to limit the scope of the present application.

[0029] The directional terms mentioned in this application, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", etc., are only directions in the drawings. The directional terms used in this article are used to explain and illustrate this application, and are not used to limit the scope of protection of this application.

[0030] In the drawings, components with the same structure are represented by the same numerical labels, and components with similar structures or functions are represented by similar numerical labels. In addition, for the sake of ease of understanding and description, the size and thickness of each component shown in the drawings are arbitrarily shown, and this application does not limit the size and thickness of each component.

[0031] Example 1

[0032] See also Figures 1-10 The connector assembly 100 of this embodiment has a first direction M, a second direction N, and a third direction P that intersect each other. In this embodiment, the first direction M, the second direction N, and the third direction P are perpendicular to each other. In other embodiments, the first direction M, the second direction N, and the third direction P may not be perpendicular to each other.

[0033] See also Figure 1 The connector assembly 100 includes an electrically connected male connector 1 and a female connector 2. The male connector 1 and the female connector 2 are arranged along a first direction M. That is, the female connector 2 is assembled with the male connector 1 along the first direction M.

[0034] See also Figure 2 and Figure 3 The male connector 1 includes a male housing 11 , a male terminal 12 and a transfer terminal 13 .

[0035] See also Figure 2 、 Figure 3 and Figure 4 The male housing 11 has a first receiving groove 111 on one side of the surface in the first direction M and a second receiving groove 112 on one side of the surface in the second direction N. The first receiving groove 111 is connected to the second receiving groove 112. In this embodiment, the surface of the male housing 11 in the first direction M ( Figure 2 The upper surface of the male end housing 11 is provided with a first receiving groove 111, and the side surface of the male end housing 11 in the second direction N ( Figure 2 A second accommodating groove 112 is provided on the left side of the middle male end housing 11 , and the first accommodating groove 111 is connected to the second accommodating groove 112 to form an accommodating groove similar to an “L”.

[0036] See also Figure 2 、 Figure 3 and Figure 4, one end of the male housing 11 having the second receiving groove 112 is connected to the battery device (not shown). In this embodiment, the side surface of the male housing 11 in the second direction N ( Figure 2 The left side of the male housing 11 in the middle is detachably connected to the battery device. In this embodiment, the side of the male housing 11 in the second direction N ( Figure 2 Four bushings 113 are provided on the left side of the male end housing 11. Specifically, the bushings 113 are M4 bushings, which can prevent the male end housing 11 from being worn when the male end housing 11 is assembled with the battery device.

[0037] See also Figure 2 、 Figure 3 and Figure 5 The male terminal 12 is disposed in the first receiving groove 111 and extends along the first direction M. The male terminal 12 has a first connecting end 121 and a second connecting end 122 in the first direction M. The outer wall of the first connecting end 121 is provided with an external thread 1211, and the second connecting end 122 is provided with an internal thread 1221. In this embodiment, the external thread 1211 is an M8 external thread or an M10 external thread, and the internal thread 1221 is an M6 internal thread.

[0038] See also Figure 2 、 Figure 3 and Figure 6 The adapter terminal 13 is disposed in the second receiving groove 112 and extends along the second direction N. The adapter terminal 13 has a first adapter end 131 and a second adapter end 132 in the second direction N. The first adapter end 131 is electrically connected to the first connection end 121, and the second adapter end 132 is electrically connected to the battery device (not shown).

[0039] See also Figure 2 、 Figure 3 and Figure 6 The first adapter end 131 is provided with a first self-clinching nut 1311. The external thread 1211 and the first self-clinching nut 1311 cooperate with each other to secure and electrically connect the male terminal 12 and the adapter terminal 13. For example, the external thread 1211 is an M8 external thread, and the first self-clinching nut 1311 is an M8 self-clinching nut. By tightening the external thread 1211 and the first self-clinching nut 1311, the first adapter end 131 and the first connection end 121 are secured and electrically connected.

[0040] See also Figure 2 、 Figure 3 and Figure 6 The second adapter end 132 is provided with a second rivet nut 1321 , and the second rivet nut 1321 cooperates with the battery device (not shown) to electrically connect the adapter terminal 13 and the battery device.

[0041] See also Figure 2 、 Figure 3 、 Figure 5and Figure 6 The male terminal 12 includes a first male terminal 1201 and a second male terminal 1202 arranged at intervals along the second direction N. The adapter terminal 13 includes a first adapter terminal 1301 and a second adapter terminal 1302 arranged at intervals along the first direction M. The first adapter end 131 of the first adapter terminal 1301 is electrically connected to the first connection end 121 of the first male terminal 1201, and the first adapter end 131 of the second adapter terminal 1302 is electrically connected to the first connection end 121 of the second male terminal 1202. Specifically, the first rivet nut 1311 of the first adapter end 131 of the first adapter terminal 1301 is tightened with the external thread 1211 of the first connecting end 121 of the first male terminal 1201 to fix and electrically connect the first adapter terminal 1301 and the first male terminal 1201; the first rivet nut 1311 of the first adapter end 131 of the second adapter terminal 1302 is tightened with the external thread 1211 of the first connecting end 121 of the second male terminal 1202 to fix and electrically connect the second adapter terminal 1302 and the second male terminal 1202.

[0042] See also Figure 3 and Figure 6 The surface of the first transfer end 131 of the first transfer terminal 1301 close to the first male terminal 1201 is flush with the surface of the first transfer end 131 of the second transfer terminal 1302 close to the second male terminal 1202. Figure 6 The upper surface of the first adapter end 131 of the first adapter terminal 1301 in the first direction M is flush with the upper surface of the first adapter end 131 of the second adapter terminal 1302 in the first direction M, thereby facilitating the electrical connection of the first male terminal 1201 and the second male terminal 1202 to the first adapter terminal 1301 and the second adapter terminal 1302 respectively.

[0043] See also Figure 2 、 Figure 3 、 Figure 7 and Figure 8 The male connector 1 further includes a first insulating member 14. The first insulating member 14 is disposed between the first transfer terminal 1301 and the second transfer terminal 1302, thereby preventing the first transfer terminal 1301 and the second transfer terminal 1302 from contacting and causing crosstalk.

[0044] See also Figure 2 、 Figure 3 、 Figure 7 and Figure 8The first insulating member 14 is provided with a first receiving groove 141, a second receiving groove 142, and a through hole 143. The first receiving groove 141 and the second receiving groove 142 are respectively provided on the surface of the first insulating member 14 on both sides in the first direction M. The second receiving groove 142 is located on the side of the first receiving groove 141 away from the first male terminal 1201. The through hole 143 passes through the surface of the first insulating member 14 on both sides in the first direction M. The first receiving groove 141 and the through hole 143 are spaced apart, and the second receiving groove 142 is connected to the through hole 143. The first adapter terminal 1301 is provided in the first receiving groove 141, and the second adapter terminal 1302 is provided in the second receiving groove 142 and the through hole 143. It is worth noting that in this embodiment, the first receiving groove 141 and the through hole 143 are separated by a partition 144, so that the first receiving groove 141 and the through hole 143 are spaced apart, so that the first adapter terminal 1301 disposed in the first receiving groove 141 and the second adapter terminal 1302 disposed in the through hole 143 are spaced apart. The second receiving groove 142 is connected to the through hole 143, so that the second adapter terminal 1302 can extend from the second receiving groove 142 into the through hole 143.

[0045] See also Figure 2 、 Figure 3 and Figure 7 A third receiving groove 1411 is further provided at the bottom of the first receiving groove 141 . The third receiving groove 1411 is used to accommodate the first rivet nut 1311 of the first adapter terminal 1301 .

[0046] See also Figure 2 、 Figure 3 and Figure 8 A fourth receiving groove 1421 is further provided at the bottom of the second receiving groove 142 . The fourth receiving groove 1421 is used to accommodate the second rivet nut 1321 of the second adapter terminal 1302 .

[0047] See also Figure 7 The first insulating member 14 is provided with a first latching member 145 and a third latching member 146. The first latching member 145 and the third latching member 146 are arranged along the first direction M. In this embodiment, the first insulating member 14 is provided with three first latching members 145 arranged along the second direction N; the first insulating member 14 is provided with two third latching members 146 arranged along the second direction N. The first latching member 145 is disposed on the side of the third latching member 146 closest to the second insulating member 15.

[0048] See also Figure 2 、 Figure 3 and Figure 6The second transfer terminal 1302 includes a first straight portion 13021, a second straight portion 13022, and an inclined portion 13023. The first straight portion 13021 is disposed within the second receiving groove 142, the second straight portion 13022 is disposed within the through-hole 143 and is located on the side of the first straight portion 13021 closest to the first male terminal 1201, and the inclined portion 13023 is disposed within the through-hole 143 and connected between the first straight portion 13021 and the second straight portion 13022. The inclined portion 13023 elevates the surface of the second straight portion 13022 closest to the first male terminal 1201 to be flush with the surface of the first transfer end 131 of the first transfer terminal 1301 closest to the first male terminal 1201, thereby facilitating electrical connection of the first male terminal 1201 and the second male terminal 1202 to the first transfer terminal 1301 and the second transfer terminal 1302, respectively.

[0049] See also Figure 2 、 Figure 3 and Figure 9 The male connector 1 further includes a second insulating member 15. The second insulating member 15 is disposed on a side of the second transfer terminal 1302 away from the first transfer terminal 1301. The second insulating member 15 includes a first insulating plate 151 and an insulating support portion 152. The insulating support portion 152 protrudes from the side of the first insulating plate 151 near the second transfer terminal 1302 to support the second straight portion 13022 and the inclined portion 13023.

[0050] See also Figure 2 、 Figure 3 and Figure 9 The second insulating member 15 is provided with a second latch 153. The first latch 145 and the second latch 153 cooperate with each other to fix the first insulating member 14 and the second insulating member 15, thereby fixing the second transfer terminal 1302 between the first insulating member 14 and the second insulating member 15.

[0051] See also Figure 2 、 Figure 3 and Figure 10 The male connector 1 further includes a third insulating member 16. The third insulating member 16 is disposed on a side of the first adapter terminal 1301 away from the second adapter terminal 1302. A fourth latch 161 is provided on the third insulating member 16. The third latch 146 and the fourth latch 161 cooperate with each other to secure the first insulating member 14 and the third insulating member 16, thereby securing the first adapter terminal 1301 between the first insulating member 14 and the third insulating member 16.

[0052] See also Figure 1 、 Figure 2 and Figure 3The female connector 2 includes a female housing 21, female terminals 22, and connecting terminals 23. The female housing 21 and the male housing 11 are arranged along a first direction M and are detachably connected to each other. A third self-clinching nut 114 is provided on the male housing 11. Bolts 115 securely fasten the male and female housings 11 and 21 together. Specifically, the third self-clinching nut 114 can be an M6 self-clinching nut, and the bolts 115 are M6 bolts.

[0053] See also Figure 3 The female terminal 22 is disposed on the second connection end 122 of the male terminal 12, thereby electrically connecting the second connection end 122 to the female terminal 22 of the female connector 2. Specifically, a fixing bolt (not shown) is inserted into the internal thread 1221 of the male terminal 12 to fix the female terminal 22 and the male terminal 12.

[0054] See also Figure 2 and Figure 3 One end of the connecting terminal 23 is arranged around the outer periphery of the female terminal 22, thereby achieving electrical connection between the connecting terminal 23 and the female terminal 22. In this embodiment, the connecting terminal 23 is an aluminum bar. In other embodiments, the connecting terminal 23 can also be an aluminum rod, a copper bar, etc.

[0055] In summary, the male connector 1 and the female connector 2 of this embodiment are arranged along the first direction M, the male terminal 12 is arranged in the first receiving groove 111 and extends along the first direction M, the second connection end 122 of the male terminal 12 is electrically connected to the female connector 2, the adapter terminal 13 is arranged in the second receiving groove 112 of the male housing 11 and extends along the second direction N, the first adapter end 131 of the adapter terminal 13 is electrically connected to the first connection end 121 of the male terminal 12, the second adapter end 132 of the adapter terminal 13 is electrically connected to the battery device, and the male housing 11 is provided with one end of the second receiving groove 112 Connect to the battery device, electrically connect the male terminal 12 and the battery device through the adapter terminal 13, and then change the installation direction of the male connector 1 and the battery device, so that the installation direction of the male connector 1 and the battery device is different from the assembly direction of the male connector 1 and the female connector 2. In this way, the assembly direction of the male connector 1 and the female connector 2 can avoid the subframe of the vehicle, which is convenient for assembling the female connector 2 and the male connector 1, reducing the assembly difficulty of the connector assembly 100, and making the connector assembly 100 able to adapt to the assembly scenario of the vehicle, thereby improving the assembly applicability of the connector assembly 100.

[0056] The above is a detailed introduction to a connector assembly provided by the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the core idea of ​​the present application. At the same time, for those skilled in the art, based on the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A connector assembly, characterized in that: Having a first direction (M) and a second direction (N) intersecting each other, the connector assembly comprises an electrically connected male connector (1) and a female connector (2), the male connector (1) and the female connector (2) being arranged along the first direction (M); The male end connector (1) comprises: a male end housing (11), a male terminal (12) and a transfer terminal (13); The male end housing (11) is provided with a first accommodating groove (111) on a surface on one side in the first direction (M) and a second accommodating groove (112) on a surface on one side in the second direction (N), the first accommodating groove (111) is communicated with the second accommodating groove (112), and one end of the male end housing (11) provided with the second accommodating groove (112) is connected to a battery device; The male terminal (12) is arranged in the first receiving groove (111) and extends along the first direction (M), the male terminal (12) has a first connecting end (121) and a second connecting end (122) in the first direction (M), and the second connecting end (122) is electrically connected to the female connector (2); The adapter terminal (13) is arranged in the second receiving groove (112) and extends along the second direction (N). The adapter terminal (13) has a first adapter end (131) and a second adapter end (132) in the second direction (N). The first adapter end (131) is electrically connected to the first connection end (121), and the second adapter end (132) is electrically connected to the battery device.

2. The connector assembly according to claim 1, wherein: The male terminal (12) comprises a first male terminal (1201) and a second male terminal (1202) arranged at intervals along the second direction (N); The adapter terminal (13) comprises a first adapter terminal (1301) and a second adapter terminal (1302) arranged at intervals along the first direction (M), the first adapter end (131) of the first adapter terminal (1301) being electrically connected to the first connection end (121) of the first male terminal (1201), and the first adapter end (131) of the second adapter terminal (1302) being electrically connected to the first connection end (121) of the second male terminal (1202).

3. The connector assembly according to claim 2, wherein: The surface of the first transfer end (131) of the first transfer terminal (1301) close to the first male terminal (1201) is flush with the surface of the first transfer end (131) of the second transfer terminal (1302) close to the second male terminal (1202).

4. The connector assembly according to claim 2, wherein: The male end connector (1) further comprises a first insulating member (14), wherein the first insulating member (14) is arranged between the first transfer terminal (1301) and the second transfer terminal (1302).

5. The connector assembly according to claim 4, wherein: The first insulating member (14) is provided with a first receiving groove (141), a second receiving groove (142) and a through hole (143); the first receiving groove (141) and the second receiving groove (142) are respectively arranged on the surfaces of the first insulating member (14) on both sides in the first direction (M); the second receiving groove (142) is located on the side of the first receiving groove (141) away from the first male terminal (1201); the through hole (143) passes through the surfaces of the first insulating member (14) on both sides in the first direction (M); the first receiving groove (141) and the through hole (143) are arranged at intervals; the second receiving groove (142) is communicated with the through hole (143); the first transfer terminal (1301) is arranged in the first receiving groove (141); the second transfer terminal (1302) is arranged in the second receiving groove (142) and the through hole (143).

6. The connector assembly according to claim 5, wherein: The second transfer terminal (1302) includes a first straight portion (13021), a second straight portion (13022) and an inclined portion (13023), wherein the first straight portion (13021) is arranged in the second receiving groove (142), the second straight portion (13022) is arranged in the through hole (143) and is located on a side of the first straight portion (13021) close to the first male terminal (1201), and the inclined portion (13023) is arranged in the through hole (143) and connected between the first straight portion (13021) and the second straight portion (13022).

7. The connector assembly according to claim 6, wherein: The male end connector (1) further comprises a second insulating member (15), wherein the second insulating member (15) is arranged on a side of the second transfer terminal (1302) away from the first transfer terminal (1301); The second insulating member (15) includes a first insulating plate (151) and an insulating support portion (152), wherein the insulating support portion (152) protrudes from a side of the first insulating plate (151) close to the second transfer terminal (1302) to support the second straight portion (13022) and the inclined portion (13023).

8. The connector assembly according to claim 7, wherein: The first insulating member (14) is provided with a first snap fastener (145), and the second insulating member (15) is provided with a second snap fastener (153). The first snap fastener (145) and the second snap fastener (153) cooperate with each other to fix the first insulating member (14) and the second insulating member (15).

9. The connector assembly according to claim 4, wherein: The male end connector (1) further comprises a third insulating member (16), wherein the third insulating member (16) is arranged on a side of the first transfer terminal (1301) away from the second transfer terminal (1302); A third snap fastener (146) is provided on the first insulating member (14), and a fourth snap fastener (161) is provided on the third insulating member (16). The third snap fastener (146) and the fourth snap fastener (161) cooperate with each other to fix the first insulating member (14) and the third insulating member (16).

10. The connector assembly according to claim 1, wherein: The first adapter end (131) is provided with a first rivet nut (1311), and the outer wall of the first connection end (121) is provided with an external thread (1211), and the external thread (1211) and the first rivet nut (1311) cooperate with each other to fix and electrically connect the male terminal (12) and the adapter terminal (13).

11. The connector assembly according to claim 1, wherein: The second adapter end (132) is provided with a second rivet nut (1321), and the second rivet nut (1321) cooperates with the battery device to electrically connect the adapter terminal (13) and the battery device.

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