Busbar mounting device and battery pack

Abstract

The utility model relates to the technical field of battery packs, and discloses a busbar mounting device and a battery pack, the busbar mounting device comprises a beam body, a switching structure and a busbar group; a containing space is formed in the beam body, a first mounting hole is formed in the first side face of the beam body, a second mounting hole is formed in the second side face of the beam body, the second side face and the first side face are oppositely arranged, and the first mounting hole and the second mounting hole are oppositely arranged and both communicate with the containing space. The switching structure is fixed in the accommodating space corresponding to the first mounting hole and the second mounting hole; the busbar group comprises a first busbar and a second busbar; one end of the first busbar is located on the outer side of the beam body, and the other end of the first busbar penetrates through the containing space and is connected with the switching structure. One end of the second busbar is located on the outer side of the beam body, and the other end of the second busbar is located in the containing space and connected with the switching structure, the battery pack connecting structure relieves the space layout pressure in a battery pack, and electrical connection between the first busbar and the second busbar is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery packs, and in particular to a busbar installation device and a battery pack. Background Art

[0002] The bus serves as the electrical connection point for all battery cells in the battery pack. It is responsible for collecting the current generated by each battery cell and transmitting the collected current to other parts of the battery pack or other components of the entire system to meet the needs of vehicle operation or system work.

[0003] Currently, battery packs generally have holes opened on the beams and clips added, or separate brackets and clips are set up to fix the busbars, which makes the battery pack box space tight and reduces the volume utilization of the battery pack. Utility Model Content

[0004] In view of this, the present invention provides a busbar installation device and a battery pack to solve the problem that the busbar occupies space in the battery pack and causes a decrease in the volume utilization of the battery pack.

[0005] In the first aspect, the utility model provides a busbar installation device, comprising a beam body, a transition structure and a busbar group; the beam body is suitable for being installed in a battery pack box; a accommodating space is provided inside the beam body, and a first mounting hole is provided on the first side surface of the beam body, and a second mounting hole is provided on the second side surface, the second side surface is arranged opposite to the first side surface, the first mounting hole is arranged opposite to the second mounting hole, and both are connected to the accommodating space; the transition structure is fixed in the accommodating space corresponding to the first mounting hole and the second mounting hole; the busbar group comprises a first busbar and a second busbar; one end of the first busbar is located on the outside of the beam body, and the other end is passed through the accommodating space and is connected to the transition structure; one end of the second busbar is located on the outside of the beam body, and the other end is located in the accommodating space and is connected to the transition structure.

[0006] Beneficial effects: Through the setting of the adapter structure, on the one hand, the first bus and the second bus are passed through the accommodating space, alleviating the spatial layout pressure inside the battery pack; on the other hand, the electrical connection between the first bus and the second bus is achieved, and the access and lead-out operations of the first bus and the second bus arranged inside the beam body are achieved.

[0007] In an optional embodiment, the adapter structure includes a conductive block, a first connector and a second connector; the conductive block is fixed in the accommodating space corresponding to the first mounting hole and the second mounting hole; the first connector is fixed on one side of the conductive block and connected to the first bus; the second connector is fixed on the other side of the conductive block and connected to the second bus.

[0008] Beneficial effect: Since the first connector and the second connector are respectively located on both sides of the conductive block and are both located in the accommodating space, it is helpful to achieve a fixed connection between the first connector and the first bus and a fixed connection between the second connector and the second bus; by arranging the first connector and the second connector on the conductive block, an efficient and stable electrical connection bridge is constructed between the first bus and the second bus, thereby realizing the electrical connection between the first bus and the second bus, ensuring the smooth flow of current, and improving the overall conductive efficiency and stability of the system.

[0009] In an optional embodiment, a first connecting hole is provided on the first busbar, and the first connecting head passes through the first connecting hole and is connected to the first fastener.

[0010] Beneficial effect: Through the setting of the first connecting hole and the first fastener, a detachable connection between the first bus and the first connecting head is achieved, which not only ensures the stability and reliability of the connection between the first bus and the adapter structure, but also facilitates the installation and maintenance of the first bus and the adapter structure, and improves the installation and maintenance efficiency of the first bus or the adapter structure.

[0011] In an optional embodiment, a second connecting hole is provided on the second busbar, and the second connecting head passes through the second connecting hole and is connected to the second fastener.

[0012] Beneficial effect: Through the setting of the second connecting hole and the second fastener, a detachable connection between the second bus and the second connecting head is achieved, which not only ensures the stability and reliability of the connection between the second bus and the adapter structure, but also facilitates the installation and maintenance of the second bus and the adapter structure, thereby improving the installation and maintenance efficiency of the second bus or the adapter structure.

[0013] In an optional embodiment, the adapter structure further includes an insulating sleeve, which is arranged around the conductive block and fixed in the accommodating space corresponding to the first mounting hole and the second mounting hole.

[0014] Beneficial effects: The provision of the insulating sleeve ensures that the electrical gap between the conductive block and the beam body is maintained, effectively isolating the potential risk of current leakage and ensuring the electrical safety and stability of the entire system. This not only improves the safety of the overall structure, but also extends the service life of the battery pack and makes the operating environment of the battery pack safer and more reliable.

[0015] In an optional embodiment, a first accommodating groove and a second accommodating groove are formed between the insulating sleeve and the conductive block, and the first accommodating groove and the second accommodating groove are respectively located on both sides of the conductive block; the first connector is located in the first accommodating groove, and the second connector is located in the second accommodating groove.

[0016] Beneficial effect: by arranging the first connector in the first receiving groove, when the first bus is connected to the first connector, the first fastener is also located in the first receiving groove, on the one hand, it is ensured that the connection between the first bus and the first connector is only located in the receiving space, and does not occupy the space outside the beam body, thereby reducing the space occupancy rate of the bus group, and on the other hand, it is ensured that the electrical gap between the connection between the first bus and the first connector and the beam body is maintained; by arranging the second connector in the second receiving groove, when the second bus is connected to the second connector, the second fastener is also located in the second receiving groove, on the one hand, it is ensured that The connection between the second bus and the second connector is only located within the accommodating space and does not occupy the space outside the beam body, thereby reducing the space occupancy of the bus group and, on the other hand, ensuring the maintenance of the electrical gap between the connection between the second bus and the second connector and the beam body; such a setting, on the one hand, effectively improves the space utilization of the battery pack, and on the other hand, effectively isolates the current leakage risk at the connection between the bus group and the adapter structure, thereby ensuring the electrical safety and stability of the entire system, which not only improves the safety of the overall structure, but also extends the service life of the battery pack and makes the operating environment of the battery pack safer and more reliable.

[0017] In an optional embodiment, the insulating sleeve includes a first avoidance opening and a second avoidance opening; the first avoidance opening is arranged on the side wall of the first accommodating groove, and the first busbar passes through the first avoidance opening and is connected to the first connector; the second avoidance opening is arranged on the side wall of the second accommodating groove, and the second busbar passes through the second avoidance opening and is connected to the second connector.

[0018] Beneficial effect: Through the setting of the first avoidance opening, interference between the insulating sleeve and the first bus is avoided, and a smooth connection between the first bus and the first connector is ensured; through the setting of the second avoidance opening, interference between the insulating sleeve and the second bus is avoided, and a smooth connection between the second bus and the second connector is ensured.

[0019] In an optional embodiment, the transition structure further includes a connecting assembly, which is arranged on the outside of the insulating sleeve and is detachably connected to the beam body.

[0020] Beneficial effects: Through the setting of the connecting assembly, a detachable connection between the transfer structure and the beam body is achieved, which not only ensures the stability and reliability of the connection between the transfer structure and the beam body, but also facilitates the installation and maintenance of the transfer structure and the beam body, and improves the installation and maintenance efficiency of the transfer structure or the beam body.

[0021] In an optional embodiment, the connection assembly includes two connection blocks and two third fasteners, and the two connection blocks are arranged opposite to each other; the two third fasteners are respectively arranged corresponding to the two connection blocks.

[0022] Beneficial effect: Through the setting of two connecting blocks and two third fasteners, a detachable connection between the transition structure and the beam body is achieved, which not only ensures the stability and reliability of the connection between the transition structure and the beam body, but also facilitates the installation and maintenance of the transition structure and the beam body, and improves the installation and maintenance efficiency of the transition structure or the beam body.

[0023] In a second aspect, the present invention further provides a battery pack, comprising a box body and the above-mentioned busbar mounting device, wherein the above-mentioned busbar mounting device is arranged inside the box body.

[0024] Because the battery pack includes a mounting device for the busbar, which has the same effect as the mounting device for the busbar, it will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in related technologies, the following briefly introduces the drawings required for use in the specific implementation methods or related technical descriptions. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a schematic structural diagram of a busbar installation device according to an embodiment of the present utility model;

[0027] Figure 2 A schematic structural diagram of a busbar mounting device according to an embodiment of the present invention from another perspective;

[0028] Figure 3 This is a structural diagram of the beam body according to an embodiment of the present utility model;

[0029] Figure 4 This is a schematic structural diagram of the switching structure of an embodiment of the present utility model.

[0030] Description of reference numerals:

[0031] 1. Beam body; 11. Accommodation space; 12. First side; 13. First mounting hole; 14. Second mounting hole; 15. Second side; 16. Fourth connecting hole; 2. Adapter structure; 21. Conductive block; 22. First connector; 23. Insulating sleeve; 24. First accommodating groove; 241. First avoidance port; 25. Connecting block; 26. Third connecting hole; 3. Busbar group; 31. First busbar; 311. First row section; 312. Second row section; 32. Second busbar; 321. Third row section; 322. Fourth row section; 4. First fastener; 5. Second fastener; 6. Third fastener. DETAILED DESCRIPTION

[0032] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0033] The following combination Figures 1 to 4 , describing the embodiments of the present utility model.

[0034] According to an embodiment of the present utility model, on the one hand, a busbar installation device is provided, including a beam body 1, a transfer structure 2 and a busbar group 3; the beam body 1 is suitable for being installed in the box of a battery pack; a accommodating space 11 is provided inside the beam body 1, and a first mounting hole 13 is provided on the first side 12 of the beam body 1, and a second mounting hole 14 is provided on the second side 15, the second side 15 is arranged opposite to the first side 12, the first mounting hole 13 is arranged opposite to the second mounting hole 14, and both are connected to the accommodating space 11; the transfer structure 2 is fixed in the accommodating space 11 corresponding to the first mounting hole 13 and the second mounting hole 14; the busbar group 3 includes a first busbar 31 and a second busbar 32; one end of the first busbar 31 is located on the outside of the beam body 1, and the other end is passed through the accommodating space 11 and is connected to the transfer structure 2; one end of the second busbar 32 is located on the outside of the beam body 1, and the other end is located in the accommodating space 11, and is connected to the transfer structure 2.

[0035] Through the setting of the adapter structure 2, on the one hand, the first bus 31 and the second bus 32 are passed through the accommodating space 11, alleviating the spatial layout pressure inside the battery pack; on the other hand, the electrical connection between the first bus 31 and the second bus 32 is achieved, and the access and lead-out operations of the first bus 31 and the second bus 32 arranged inside the beam body 1 are achieved.

[0036] In a specific embodiment, the first bus bar 31 and the second bus bar 32 are both hard bus bars, and the first bus bar 31 and the second bus bar 32 are both L-shaped.

[0037] In a specific embodiment, the transition structure 2 is arranged near one end of the beam body 1; the first bus 31 includes a first row segment 311 and a second row segment 312 that are perpendicular to each other, one end of the first row segment 311 is located in the accommodating space 11 and is connected to the transition structure 2, and the other end extends along the length direction of the beam body 1, extends to the outside of the other end of the beam body 1, and is connected to the second row segment 312, and the second row segment 312 extends to the side away from the beam body 1; the second bus 32 includes a third row segment 321 and a fourth row segment 322 that are perpendicular to each other, the third row segment 321 is located in the accommodating space 11 and is connected to the transition structure 2, and the fourth row segment 322 extends to the side away from the beam body 1.

[0038] In one embodiment, the adapter structure 2 includes a conductive block 21, a first connector 22 and a second connector; the conductive block 21 is fixed in the accommodating space 11 corresponding to the first mounting hole 13 and the second mounting hole 14; the first connector 22 is fixed on one side of the conductive block 21 and is connected to the first bus 31; the second connector is fixed on the other side of the conductive block 21 and is connected to the second bus 32.

[0039] Since the first connector 22 and the second connector are respectively located on both sides of the conductive block 21 and are both located in the accommodating space 11, it is helpful to achieve a fixed connection between the first connector 22 and the first bus 31 and a fixed connection between the second connector and the second bus 32; by arranging the first connector 22 and the second connector on the conductive block 21, an efficient and stable electrical connection bridge is constructed between the first bus 31 and the second bus 32, thereby achieving an electrical connection between the first bus 31 and the second bus 32, ensuring smooth flow of current, and improving the overall conductive efficiency and stability of the system.

[0040] In one embodiment, a first connecting hole is provided on the first busbar 31 , and the first connecting head 22 passes through the first connecting hole and is connected to the first fastener 4 .

[0041] By setting the first connecting hole and the first fastener 4, a detachable connection is achieved between the first bus 31 and the first connecting head 22, which not only ensures the stability and reliability of the connection between the first bus 31 and the adapter structure 2, but also facilitates the installation and maintenance of the first bus 31 and the adapter structure 2, thereby improving the installation and maintenance efficiency of the first bus 31 or the adapter structure 2.

[0042] In a specific embodiment, the first connecting head 22 is a stud, the first fastener 4 is a nut, and the first connecting head 22 and the first fastener 4 are threadedly connected.

[0043] In an alternative embodiment, the first busbar 31 and the first connector 22 may be fixedly connected by welding.

[0044] In one embodiment, a second connecting hole is provided on the second busbar 32 , and the second connector passes through the second connecting hole and is connected to the second fastener 5 .

[0045] By setting the second connecting hole and the second fastener 5, a detachable connection is achieved between the second bus 32 and the second connecting head, which not only ensures the stability and reliability of the connection between the second bus 32 and the adapter structure 2, but also facilitates the installation and maintenance of the second bus 32 and the adapter structure 2, thereby improving the installation and maintenance efficiency of the second bus 32 or the adapter structure 2.

[0046] In a specific embodiment, the second connecting head is a stud, the second fastener 5 is a nut, and the second connecting head and the second fastener 5 are threadedly connected.

[0047] In an alternative embodiment, the second busbar 32 and the second connector may be fixedly connected by welding.

[0048] Since the first connecting head 22 and the second connecting head are both located in the accommodating space 11, by setting the first mounting hole 13 on the first side surface 12 of the beam body 1 and setting the second mounting hole 14 on the second side surface 15 of the beam body 1, an operating space is provided for the installation of the first fastener 4 and the second fastener 5, which helps to achieve the connection between the first fastener 4 and the first connecting head 22 and the connection between the second fastener 5 and the second connecting head.

[0049] In one embodiment, the adapter structure 2 further includes an insulating sleeve 23 , which is sleeved around the conductive block 21 and fixed in the accommodating space 11 corresponding to the first mounting hole 13 and the second mounting hole 14 .

[0050] By setting the insulating sleeve 23, the electrical gap between the conductive block 21 and the beam body 1 is maintained, effectively isolating the potential current leakage risk, and ensuring the electrical safety and stability of the entire system. It not only improves the safety of the overall structure, but also extends the service life of the battery pack and makes the operating environment of the battery pack safer and more reliable.

[0051] In one embodiment, the insulating sleeve 23 and the conductive block 21 enclose a first accommodating groove 24 and a second accommodating groove, and the first accommodating groove 24 and the second accommodating groove are respectively located on both sides of the conductive block 21; the first connector 22 is located in the first accommodating groove 24, and the second connector is located in the second accommodating groove.

[0052] By arranging the first connector 22 in the first receiving groove 24, when the first bus 31 is connected to the first connector 22, the first fastener 4 is also located in the first receiving groove 24. On the one hand, it is ensured that the connection between the first bus 31 and the first connector 22 is only located in the receiving space 11, and does not occupy the space outside the beam body 1, thereby reducing the space occupancy rate of the bus group 3. On the other hand, it is ensured that the electrical gap between the connection between the first bus 31 and the first connector 22 and the beam body 1 is maintained. By arranging the second connector in the second receiving groove, when the second bus 32 is connected to the second connector, the second fastener 5 is also located in the second receiving groove. On the one hand, it ensures that the connection between the second bus 32 and the second connector is only located in the accommodating space 11 and does not occupy the space outside the beam body 1, thereby reducing the space occupancy rate of the bus group 3; on the other hand, it ensures that the electrical gap between the connection between the second bus 32 and the second connector and the beam body 1 is maintained; such a setting, on the one hand, effectively improves the space utilization rate of the battery pack; on the other hand, it effectively isolates the current leakage risk at the connection between the bus group 3 and the adapter structure 2, thereby ensuring the electrical safety and stability of the entire system, which not only improves the safety of the overall structure, but also extends the service life of the battery pack and makes the operating environment of the battery pack safer and more reliable.

[0053] In one embodiment, the insulating sleeve 23 includes a first avoidance opening 241 and a second avoidance opening; the first avoidance opening 241 is arranged on the side wall of the first accommodating groove 24, and the first bus 31 passes through the first avoidance opening 241 to be connected to the first connector 22; the second avoidance opening is arranged on the side wall of the second accommodating groove, and the second bus 32 passes through the second avoidance opening to be connected to the second connector.

[0054] By setting the first avoidance opening 241, interference between the insulating sleeve 23 and the first bus 31 is avoided, thereby ensuring a smooth connection between the first bus 31 and the first connector 22; by setting the second avoidance opening, interference between the insulating sleeve 23 and the second bus 32 is avoided, thereby ensuring a smooth connection between the second bus 32 and the second connector.

[0055] In one embodiment, the transition structure 2 further includes a connecting assembly, which is disposed on the outside of the insulating sleeve 23 and is detachably connected to the beam body 1 .

[0056] In one embodiment, the connection assembly includes two connection blocks 25 and two third fasteners 6 , wherein the two connection blocks 25 are arranged opposite to each other; and the two third fasteners 6 are respectively arranged corresponding to the two connection blocks 25 .

[0057] By setting up the connecting assembly, a detachable connection between the transfer structure 2 and the beam body 1 is achieved, which not only ensures the stability and reliability of the connection between the transfer structure 2 and the beam body 1, but also facilitates the installation and maintenance of the transfer structure 2 and the beam body 1, thereby improving the installation and maintenance efficiency of the transfer structure 2 or the beam body 1.

[0058] In a specific embodiment, the connecting block 25 is provided with a third connecting hole 26; the first side surface 12 of the beam body 1 is further provided with two fourth connecting holes 16, the two fourth connecting holes 16 being located on either side of the first mounting hole 13; the third fastener 6 passes through the third connecting hole 26 and is connected to the fourth connecting holes 16. It is understood that the two fourth connecting holes 16 can also be provided on the second side surface 15 of the beam body 1 (not shown in the figure).

[0059] Specifically, the third fastener 6 is a rivet.

[0060] In one implementation of this embodiment, the second avoidance opening is arranged on the side wall of the second accommodating groove along the height direction of the beam body 1 , and the two connecting blocks 25 are respectively arranged on both sides of the insulating sleeve 23 along the length direction of the beam body 1 .

[0061] In another implementation of this embodiment, the second avoidance opening is arranged on the side wall of the second accommodating groove along the length direction of the beam body 1, and the two connecting blocks 25 are respectively arranged on both sides of the insulating sleeve 23 along the height direction of the beam body 1.

[0062] According to an embodiment of the present invention, on the other hand, a battery pack is provided, comprising a box body and the above-mentioned busbar mounting device; the above-mentioned busbar mounting device is arranged inside the box body.

[0063] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations shall fall within the scope defined by the appended claims.

Claims

1. A busbar installation device, characterized in that: include: A beam body (1) is suitable for being installed in a box of a battery pack; an accommodating space (11) is provided inside the beam body (1), and a first mounting hole (13) is provided on a first side surface (12) of the beam body (1), and a second mounting hole (14) is provided on a second side surface (15); the second side surface (15) is arranged opposite to the first side surface (12), and the first mounting hole (13) is arranged opposite to the second mounting hole (14), and both are connected to the accommodating space (11); A transition structure (2) is fixed in the accommodation space (11) corresponding to the first mounting hole (13) and the second mounting hole (14); A busbar group (3) comprises a first busbar (31) and a second busbar (32); one end of the first busbar (31) is located outside the beam body (1), and the other end is arranged in the accommodating space (11) and connected to the transition structure (2); one end of the second busbar (32) is located outside the beam body (1), and the other end is located in the accommodating space (11) and connected to the transition structure (2).

2. The busbar mounting device according to claim 1, characterized in that: The switching structure (2) comprises: A conductive block (21) is fixed in the accommodation space (11) corresponding to the first mounting hole (13) and the second mounting hole (14); A first connector (22) is fixed on one side of the conductive block (21) and connected to the first busbar (31); The second connector is fixed on the other side of the conductive block (21) and connected to the second busbar (32).

3. The busbar mounting device according to claim 2, characterized in that: A first connecting hole is provided on the first busbar (31), and the first connecting head (22) passes through the first connecting hole and is connected to the first fastener (4).

4. The busbar mounting device according to claim 2, characterized in that: The second busbar (32) is provided with a second connection hole, and the second connector passes through the second connection hole and is connected to the second fastener (5).

5. The busbar mounting device according to any one of claims 2 to 4, characterized in that: The adapter structure (2) further includes an insulating sleeve (23), which is sleeved around the conductive block (21) and fixed in the accommodating space (11) corresponding to the first mounting hole (13) and the second mounting hole (14).

6. The busbar mounting device according to claim 5, characterized in that: The insulating sleeve (23) and the conductive block (21) enclose a first accommodating groove (24) and a second accommodating groove, wherein the first accommodating groove (24) and the second accommodating groove are respectively located on both sides of the conductive block (21); the first connector (22) is located in the first accommodating groove (24), and the second connector is located in the second accommodating groove.

7. The busbar mounting device according to claim 6, characterized in that: The insulating sleeve (23) comprises: A first avoidance opening (241) is provided on a side wall of the first accommodating groove (24); the first busbar (31) passes through the first avoidance opening (241) and is connected to the first connector (22); The second avoidance opening is arranged on the side wall of the second accommodating groove, and the second busbar (32) passes through the second avoidance opening and is connected to the second connector.

8. The busbar mounting device according to claim 7, characterized in that: The transition structure (2) further comprises a connection assembly, which is arranged outside the insulating sleeve (23) and is detachably connected to the beam body (1).

9. The busbar mounting device according to claim 8, characterized in that: The connection component includes: Two connecting blocks (25), the two connecting blocks (25) are arranged opposite to each other; Two third fasteners (6), the two third fasteners (6) are respectively arranged corresponding to the two connecting blocks (25).

10. A battery pack, characterized in that: include: Box; The busbar mounting device according to any one of claims 1 to 9 is arranged inside the box.

Images