Riveting assembly, battery pack and vehicle

Abstract

The utility model relates to the technical field of battery packs, in particular to a riveting assembly, a battery pack and a vehicle, the riveting assembly comprises a circuit board and a connecting row, the connecting row is provided with a first riveting part and a cable connecting part, the cable connecting part is used for being connected with a cable of a battery cell in the battery pack, and the circuit board is provided with a second riveting part. The first riveting part and the second riveting part are arranged in a stacked mode, a riveting hole is formed in the first riveting part, a riveting column is arranged on the side, facing the first riveting part, of the second riveting part, the riveting column is provided with a connecting part fixedly connected with the stopping part and the second riveting part, and the connecting part is matched with the riveting hole in an inserted mode in the first direction. The stopping part is riveted on the side, back to the second riveting part, of the first riveting part through the end, away from the second riveting part, of the connecting part, and the stopping part is matched with the side, back to the second riveting part, of the first riveting part in a stopping mode. The connection strength between the circuit board and the connection bar is improved, and the circuit board is prevented from being separated from the connection bar.

Description

Technical Field

[0001] This utility model relates to the field of battery pack technology, and in particular to a riveting assembly, a battery pack, and a vehicle. Background Technology

[0002] The charging device for new energy vehicles includes a charging socket installed on the vehicle body and a charging pile installed in the outside. The charging pile is equipped with a charging gun. By plugging the charging gun into the charging socket, the battery pack installed on the vehicle body is charged.

[0003] An existing battery pack includes a housing, a circuit board, multiple battery cells, and a connector. The multiple battery cells are installed in the housing according to a certain layout scheme. The circuit board is installed inside the housing. Each battery cell has its own cable extending from it. All the cables of the battery cells are connected to one end of the connector, and the other end of the connector is riveted to the circuit board.

[0004] In existing battery packs, the riveting structure between the connector and the circuit board has poor connection strength and is prone to breakage, causing the connector to detach from the circuit board. Summary of the Invention

[0005] This utility model provides a riveting assembly, a battery pack, and a vehicle, aiming to solve the problem that the existing battery pack has poor connection strength between the riveting structure of the connecting strip and the circuit board, which is easy to break and causes the connecting strip to detach from the circuit board.

[0006] This utility model provides a riveting assembly, including a circuit board and a connecting bar. The connecting bar has a first riveting part and a cable connecting part. The cable connecting part is used to connect to the cable of the battery cell in the battery pack. The circuit board has a second riveting part. The first riveting part and the second riveting part are stacked. The first riveting part is provided with a riveting hole.

[0007] The second riveting part is provided with a riveting post on the side facing the first riveting part. The riveting post has a connecting part that is fixedly connected to the stop part and the second riveting part. The connecting part is inserted into the riveting hole along the first direction. The stop part is riveted to the side of the first riveting part facing away from the second riveting part by the end of the connecting part away from the second riveting part.

[0008] The stop portion engages with the side of the first riveting portion opposite to the second riveting portion.

[0009] Optionally, the first riveting part is provided with a receiving groove on the side opposite to the second riveting part, the receiving groove is connected to the riveting hole, and the receiving groove has a first stop surface on the side opposite to the second riveting part;

[0010] The stop portion has a second stop surface facing the side of the second riveting portion, and the first stop surface and the second stop surface are in a stop-fitting engagement.

[0011] Optionally, the first riveting portion has a first stop surface facing away from the second riveting portion, and the stop portion has a second stop surface facing the first riveting portion, wherein the first stop surface and the second stop surface engage in a stop-fitting relationship.

[0012] Optionally, along the first direction, the receiving groove is coaxially arranged with the riveting hole, the cross-sectional area of ​​the stop portion in the second direction is larger than the cross-sectional area of ​​the riveting post in the second direction, and the second direction is perpendicular to the first direction.

[0013] Optionally, the inner diameter of the receiving groove gradually decreases from the end away from the second riveting part to the end near the second riveting part, and the groove sidewall of the receiving groove forms the first stop surface;

[0014] The stop portion is circular, and its outer diameter gradually decreases from the end away from the second riveting portion to the end near the second riveting portion. The peripheral sidewall of the stop portion forms the second stop surface.

[0015] Optionally, along the first direction, the thickness of the stop portion is less than the depth of the receiving groove.

[0016] Optionally, the first riveting part is plate-shaped, the second riveting part is plate-shaped, and the side of the first riveting part facing the second riveting part contacts the second riveting part.

[0017] Optionally, the riveting holes are provided in multiple ways, the number of riveting posts is the same as the number of riveting holes, and the riveting holes are inserted into the riveting posts accordingly.

[0018] According to the riveting assembly provided in this utility model embodiment, the connecting part of the riveting post is inserted into the riveting hole. Compared with the prior art, the stop part is located on the side of the first riveting part of the connecting row facing away from the second riveting part of the circuit board. The stop part and the side of the first riveting part facing away from the circuit board are in a stop-fitting cooperation, which can prevent the connecting part of the riveting post from detaching from the riveting hole, improve the connection strength between the circuit board and the connecting row, and prevent the circuit board from detaching from the connecting row.

[0019] This utility model embodiment also provides a battery pack, including a housing, a battery cell and the above-mentioned riveting assembly, wherein the circuit board, the connecting bar and the battery cell are installed in the housing, and the cable of the battery cell is connected to the cable connection part.

[0020] This utility model embodiment also provides a vehicle including the above-described battery pack. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of a riveting assembly provided in an embodiment of the present invention;

[0023] Figure 2 This is for Figure 1 Schematic diagram of the middle connecting row;

[0024] Figure 3 for Figure 1 A schematic diagram of the circuit board.

[0025] The following are the reference numerals in the accompanying drawings: 1. Connecting strip; 2. Circuit board; 3. Cable connection part; 4. First riveting part; 5. Riveting hole; 6. First stop surface; 7. Receiving groove; 8. Second riveting part; 9. Riveting post; 10. Connecting part; 11. Stop part; 12. Second stop surface; 13. Cable connection hole. Detailed Implementation

[0026] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] like Figures 1 to 3 As shown, an embodiment of the present invention provides a riveting assembly, including a circuit board 2 and a connecting strip 1. The connecting strip 1 has a first riveting part 4 and a cable connecting part 3. The cable connecting part 3 is used to connect to the cable of the battery cell in the battery pack. The first riveting part 4 is provided with a riveting hole 5. The circuit board 2 has a second riveting part 8. The first riveting part 4 and the second riveting part 8 are stacked. The first riveting part 4 is provided with a riveting hole 5.

[0029] The second riveting part 8 is provided with a riveting post 9 on the side facing the first riveting part 4. The riveting post 9 has a connecting part 10 that is fixedly connected to the stop part 11 and the second riveting part 8. The connecting part 10 is inserted into the riveting hole 5 along the first direction. The stop part 11 is riveted to the side of the first riveting part 4 facing away from the second riveting part 8 from the end of the connecting part 10 away from the second riveting part 8.

[0030] The stop part 11 is engaged with the side of the first riveting part 4 facing away from the second riveting part 8.

[0031] In this embodiment, the first riveting part 4 is located above the second riveting part 8. The first direction refers to the length direction of the riveting post 9. The connecting part 10 of the riveting post 9 is inserted into the riveting hole 5. After the connecting part 10 of the riveting post 9 is inserted into the riveting hole 5, the end of the connecting part 10 away from the second riveting part 8 is riveted to form a stop part 11. The stop part 11 is located on the side of the first riveting part 4 of the connecting row 1 that is opposite to the second riveting part 8 of the circuit board 2. The stop part 11 and the side of the first riveting part 4 that is opposite to the circuit board 2 are engaged to prevent the connecting part 10 of the riveting post 9 from coming off the riveting hole 5, thereby improving the connection strength between the circuit board 2 and the connecting row 1 and preventing the circuit board 2 from coming off the connecting row 1.

[0032] In one embodiment, the first riveting part 4 is provided with a receiving groove 7 on the side opposite to the second riveting part 8. The receiving groove 7 communicates with the riveting hole 5 and has a first stop surface 6 on the side opposite to the second riveting part 8.

[0033] The stop portion 11 has a second stop surface 12 facing the side of the second riveting portion 8, and the first stop surface 6 and the second stop surface 12 are in a stop-fitting relationship.

[0034] In this embodiment, the receiving groove 7 is provided on the side of the first riveting part 4 facing away from the second riveting part 8. The bottom wall of the receiving groove 7 forms a first stopping surface 6, and the stopping part 11 has a second stopping surface 12 on the side facing the second riveting part 8. Both the first stopping surface 6 and the second stopping surface 12 are smooth. The first stopping surface 6 and the second stopping surface 12 stop and cooperate, so that the stopping part 11 stops and cooperates with the first riveting part 4, increasing the contact area between the first stopping surface 6 and the second stopping surface 12, thereby increasing the stopping area between the stopping part 11 and the first riveting part 4, which can improve the stopping effect of the stopping part 11 on the first riveting part 4, so as to prevent the riveting hole 5 of the riveting post 9 from coming off.

[0035] In one embodiment, along the first direction, the receiving groove 7 is coaxially arranged with the riveting hole 5, the cross-sectional area of ​​the stop portion 11 in the second direction is greater than the cross-sectional area of ​​the riveting post 9 in the second direction, and the second direction is perpendicular to the first direction.

[0036] In this embodiment, the receiving groove 7 and the riveting hole 5 are coaxially arranged, meaning that the receiving groove 7 has a regular shape, and the center line of the receiving groove 7 extending along the first direction is collinear with the center line of the riveting hole 5 along the first direction. Specifically, after the riveting post 9 is inserted into the riveting hole 5, the end of the riveting post 9 away from the second riveting part 8 is riveted into the receiving groove 7 to form a stop part 11 with the same shape as the receiving groove 7. This facilitates riveting.

[0037] In this embodiment, the cross-sectional shape of the receiving groove 7 along the second direction is circular.

[0038] In one embodiment, the inner diameter of the receiving groove 7 gradually decreases from the end away from the second riveting part 8 to the end near the second riveting part 8, and the groove sidewall of the receiving groove 7 forms a first stop surface 6.

[0039] The outer diameter of the stop portion 11 gradually decreases from the end away from the second riveting portion 8 to the end close to the second riveting portion 8, and the peripheral sidewall of the stop portion 11 forms the second stop surface 12.

[0040] In this embodiment, the stop part 11 is frustum-shaped, and the receiving groove 7 is a frustum-shaped hole, which facilitates riveting and forming.

[0041] In one embodiment, along the first direction, the thickness of the stop portion 11 is less than the depth of the receiving groove 7.

[0042] In this embodiment, the thickness of the stop portion 11 is less than the depth of the receiving groove 7, so that the stop portion 11 is completely submerged in the receiving groove 7, preventing the stop portion 11 from being exposed outside the receiving groove 7, making the side of the first riveting portion 4 facing away from the second riveting portion 8 relatively flat, which can increase the contact area between the first riveting portion 4 and the second riveting portion 8.

[0043] In one embodiment, the first riveting part 4 is plate-shaped, the second riveting part 8 is plate-shaped, and the side of the first riveting part 4 facing the second riveting part contacts the second riveting part 8.

[0044] In this embodiment, both the first riveting part 4 and the second riveting part 8 are plate-shaped, which can ensure that the first riveting part 4 and the second riveting part 8 have the largest contact area, and further improve the connection strength between the first riveting part 4 and the second riveting part 8.

[0045] In one embodiment, there are multiple riveting holes 5, and the number of riveting posts 9 is the same as the number of riveting holes 5. The riveting holes 5 and the riveting posts 9 are inserted into each other.

[0046] In this embodiment, "multiple" refers to two or more. Multiple riveting posts 9 are arranged at intervals on the first riveting part 4, which can further improve the connection strength between the first riveting part 4 and the second riveting part 8.

[0047] In this embodiment, the connecting row 1 is L-shaped, and the first riveting part 4 is perpendicular to the fishing line connecting part 3, which facilitates the arrangement of the cable.

[0048] In this embodiment, the cable connection part 3 is provided with a cable connection hole 13 for connecting the cables of the battery pack cells.

[0049] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0050] According to the riveting assembly provided in this embodiment of the present invention, the connecting part 10 of the riveting post 9 is inserted into the riveting hole 5. Compared with the prior art, the stop part 11 is located on the side of the first riveting part 4 of the connecting row 1 facing away from the second riveting part 8 of the circuit board 2. The stop part 11 and the side of the first riveting part 4 facing away from the circuit board 2 are in a stop-fitting cooperation, which can prevent the connecting part 10 of the riveting post 9 from detaching from the riveting hole 5, improve the connection strength between the circuit board 2 and the connecting row 1, and prevent the circuit board 2 from detaching from the connecting row 1.

[0051] In addition, one embodiment of the present invention also provides a battery pack, including a housing, a battery cell and the above-mentioned riveting assembly, wherein the circuit board 2, the connecting bar 1 and the battery cell are installed in the housing, and the cable of the battery cell is connected to the cable connection hole 13 on the cable connection part 3.

[0052] In addition, one embodiment of the present invention also provides a vehicle including the aforementioned battery pack.

[0053] In other embodiments, the first riveting portion 4 has a first stop surface 6 facing away from the second riveting portion 8, and the stop portion 11 has a second stop surface 12 facing the first riveting portion 4, with the first stop surface 6 and the second stop surface 12 engaging in a stop-and-stop engagement.

[0054] In other embodiments, the section of the stop portion 11 in the second direction is a regular polygon.

[0055] In other embodiments, the thickness of the stop portion 11 is the same as the depth of the receiving groove 7, and the side of the stop portion 11 facing away from the second riveting portion 8 is flush with the side of the first riveting portion 4 facing away from the second riveting portion 8.

[0056] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A riveting assembly, characterized in that, The device includes a circuit board (2) and a connecting bar (1). The connecting bar (1) has a first riveting part (4) and a cable connecting part (3). The cable connecting part (3) is used to connect to the cable of the battery cell in the battery pack. The circuit board (2) has a second riveting part (8). The first riveting part (4) and the second riveting part (8) are stacked. The first riveting part (4) is provided with a riveting hole (5). The second riveting part (8) is provided with a riveting post (9) on the side facing the first riveting part (4). The riveting post (9) has a connecting part (10) that is fixedly connected to the stop part (11) and the second riveting part (8). The connecting part (10) is inserted into the riveting hole (5) along the first direction. The stop part (11) is riveted to the side of the first riveting part (4) facing away from the second riveting part (8) by the end of the connecting part (10) away from the second riveting part (8). The stop part (11) is engaged with the first riveting part (4) on the side opposite to the second riveting part (8).

2. The riveting assembly according to claim 1, characterized in that, The first riveting part (4) is provided with a receiving groove (7) on the side away from the second riveting part (8). The receiving groove (7) is connected to the riveting hole (5). The receiving groove (7) has a first stop surface (6) on the side away from the second riveting part (8). The stop portion (11) has a second stop surface (12) facing the side of the second riveting portion (8), and the first stop surface (6) and the second stop surface (12) are in a stop-fitting relationship.

3. The riveting assembly according to claim 1, characterized in that, The first riveting part (4) has a first stop surface (6) facing away from the second riveting part (8), and the stop part (11) has a second stop surface (12) facing the first riveting part (4). The first stop surface (6) and the second stop surface (12) are in a stop-fitting relationship.

4. The riveting assembly according to claim 2, characterized in that, Along the first direction, the receiving groove (7) is coaxially arranged with the riveting hole (5), and the cross-sectional area of ​​the stop part (11) in the second direction is greater than the cross-sectional area of ​​the riveting post (9) in the second direction. The second direction is perpendicular to the first direction.

5. The riveting assembly according to claim 4, characterized in that, The inner diameter of the receiving groove (7) gradually decreases from one end away from the second riveting part (8) to one end close to the second riveting part (8), and the groove sidewall of the receiving groove (7) forms the first stop surface (6). The stop portion (11) is circular, and the outer diameter of the stop portion (11) gradually decreases from the end away from the second riveting portion (8) to the end close to the second riveting portion (8). The peripheral sidewall of the stop portion (11) forms the second stop surface (12).

6. The riveting assembly according to claim 5, characterized in that, Along the first direction, the thickness of the stop (11) is less than the depth of the receiving groove (7).

7. The riveting assembly according to claim 1, characterized in that, The first riveting part (4) is plate-shaped, the second riveting part (8) is plate-shaped, and the first riveting part (4) is in contact with the second riveting part (8) on the side facing the second riveting part.

8. The riveting assembly according to claim 1, characterized in that, The riveting holes (5) are provided in multiple ways, and the number of riveting posts (9) is the same as the number of riveting holes (5). The riveting holes (5) are inserted into the riveting posts (9) respectively.

9. A battery pack, characterized in that, The device includes a housing, a battery cell, and a riveting assembly as described in any one of claims 1 to 8. The circuit board (2), the connecting bar (1), and the battery cell are installed in the housing, and the cable of the battery cell is connected to the cable connection part (3).

10. A vehicle, characterized in that, Includes the battery pack as described in claim 9.

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