Convergence assembly, battery and vehicle

Abstract

The utility model relates to a confluence assembly, a battery and a vehicle, the confluence assembly comprises a supporting piece and an electric connecting piece, the supporting piece is provided with a first face and a second face which are oppositely arranged, the electric connecting piece is connected to the first face of the supporting piece, and the second face of the supporting piece is used for being connected with a single battery. A penetrating part penetrating through the first surface and the second surface of the supporting piece is formed in the supporting piece, and the penetrating part is used for allowing an adhesive to penetrate through. According to the confluence assembly, through the arranged through part, the runner for the adhesive to pass through can be formed on the supporting piece, so that when polystyrene foam is poured, the adhesive flows to the battery monomers along the through part, and through the arrangement of the through part, part of the battery monomers is exposed to be connected with the adhesive, so that the fixing effect on the battery monomers is improved, and the service life of the battery monomers is prolonged. And gaps among the single batteries are fully filled, so that the integrity and the stability of the formed battery are improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of power batteries, and in particular to a busbar assembly, a battery and a vehicle. Background Art

[0002] In the related art, the busbar assembly in the battery seals the surface of the battery cell, which affects the contact area between the adhesive and the battery cell, and further affects the fixing effect of the battery cell, resulting in the overall structural strength and integration of the battery being affected. Utility Model Content

[0003] The purpose of the present disclosure is to provide a busbar assembly, a battery and a vehicle to solve the above-mentioned problems in the related art.

[0004] In order to achieve the above-mentioned object, one aspect of the present disclosure provides a busbar assembly, including a support member and an electrical connector;

[0005] The support member has a first surface and a second surface arranged opposite to each other, the electrical connector is connected to the first surface of the support member, the second surface of the support member is used to connect with the battery cell, and a through portion penetrating the first surface and the second surface of the support member is provided on the support member, and the through portion is used for adhesive to pass through.

[0006] Optionally, the through-portion includes a first through-portion, the electrical connector includes a plurality of first rows arranged at intervals along a first direction, and at least one first through-portion is arranged between two adjacent first rows in the first direction.

[0007] Optionally, the first through-portions are configured as through-holes, and the number of the first through-portions between two adjacent first rows is plural and arranged at intervals along the second direction, and the plurality of the first through-portions constitute a first through-portion group.

[0008] Optionally, at least a portion of the support member near the first through portion is formed with a convex portion protruding toward and away from the battery cell, and a first spacing space is reserved between the convex portion and the battery cell, and the first spacing space is used to accommodate the adhesive.

[0009] Optionally, the through-portion includes a second through-portion, the electrical connector includes a plurality of second rows spaced apart along a second direction, and at least one second through-portion is disposed between two adjacent second rows in the second direction.

[0010] Optionally, a convex rib is provided on the support member, the convex rib is configured to bulge away from the battery cell, a second spacing space is left between the convex rib and the battery cell, the second spacing space is used to accommodate the adhesive, and the second through portion is provided on the convex rib.

[0011] Optionally, the second through-portion is configured as a slot, the number of the second through-portions between two adjacent second rows is plural and spaced apart along the first direction, the plurality of second through-portions constitute a second through-portion group, and the rib extends along the first direction.

[0012] Optionally, the through portion includes a third through portion, the third through portion coincides with a projection of the electrical connector on the support member along a third direction, and a connecting hole is provided on the electrical connector, the connecting hole is connected to the third through portion.

[0013] Optionally, the electrical connector includes a plurality of single rows distributed in an array, wherein the plurality of single rows are spaced apart along a first direction to form a first row, and the plurality of single rows are spaced apart along a second direction to form a second row, each of the single rows is provided with a connecting hole, the number of the third through portions is multiple and corresponds one-to-one to the single rows, and the third through portions are constructed as through holes.

[0014] Optionally, a connecting portion is provided on the supporting member, a matching portion is provided on the electrical connecting member, and the connecting portion is snap-fitted with the matching portion.

[0015] Optionally, the busbar assembly further includes a sampling circuit board, the sampling circuit board is connected to the support member, the sampling circuit board has an electrical connection portion, and the electrical connection portion is electrically connected to the electrical connector.

[0016] The second aspect of the present disclosure further provides a battery, comprising a battery cell and the above-mentioned busbar assembly, wherein the second surface of the support member of the busbar assembly is connected to the battery cell, and the electrical connector of the busbar assembly is electrically connected to the battery cell.

[0017] A third aspect of the present disclosure also provides a vehicle, comprising the above-mentioned battery.

[0018] The above technical solution, through the provision of the through-hole, can form a flow channel for the adhesive to pass through on the support member, so that when the foam glue is poured, the adhesive flows along the through-hole to the battery cell, and the provision of the through-hole makes part of the battery cell exposed and connected to the adhesive, thereby improving the fixing effect on the battery cell, and fully filling the gaps between the battery cells, improving the integrity and stability of the constructed battery. In addition, the provision of the through-hole can also allow the adhesive to fully wrap the support member, improve the connection strength between the support member and the battery cell, thereby improving the connection stability between the electrical connector and the battery cell.

[0019] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0021] Figure 1 is a schematic diagram of the three-dimensional structure of a confluence assembly according to an embodiment of the present disclosure;

[0022] Figure 2 This is an embodiment of the present disclosure Figure 1 A partial enlarged schematic diagram of position A in the middle;

[0023] Figure 3 is an exploded view of a busbar assembly according to an embodiment of the present disclosure;

[0024] Figure 4 This is an embodiment of the present disclosure Figure 3 A partial enlarged schematic diagram of position B in the middle.

[0025] Description of Reference Numerals

[0026] 1. support member, 11. convex portion, 12. convex rib, 13. connecting portion, 14. mounting hole;

[0027] 2. electrical connector, 21. first row, 22. second row, 23. communicating hole, 24. single row, 25. mating portion;

[0028] 3. through-portion, 31. first through-portion, 32. second through-portion, 33. third through-portion;

[0029] 4. Sampling circuit board;

[0030] X, first direction, Y, second direction, Z, third direction. DETAILED DESCRIPTION

[0031] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0032] In the present disclosure, unless otherwise stated, directional words such as "upper, lower, left, right" are usually defined by the direction of the drawing, and "inner" and "outer" refer to the inside and outside of the relevant parts. In addition, the terms "first", "second", etc. are only used to distinguish descriptions and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present disclosure, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0034] The battery is one of the core components of new energy electric vehicles, and its integration and structural strength are important performance indicators of the battery. During the manufacturing process of the battery, it is necessary to inject the sealing foam into it to fill the gaps between the battery cells.

[0035] In the related art, the busbar assembly in the battery seals the surface of the battery cell, which affects the contact area between the adhesive and the battery cell, and further affects the fixing effect of the battery cell, resulting in the overall structural strength and integration of the battery being affected.

[0036] For this reason, Figure 1-Figure 4 As shown, one aspect of the present disclosure provides a busbar assembly, including a support member 1 and an electrical connector 2 .

[0037] The support member 1 has a first surface and a second surface that are arranged opposite to each other. The electrical connector 2 is connected to the first surface of the support member 1. The second surface of the support member 1 is used to connect with the battery cell. The support member 1 is provided with a through portion 3 that penetrates the first surface and the second surface of the support member 1. The through portion 3 is used for adhesive to pass through.

[0038] The support member 1 may be a flat plate structure, and the support member 1 may be laid on the surfaces of a plurality of battery cells arranged in parallel, and the second surface of the support member 1 is in contact with the surface of the battery cells.

[0039] In the above technical solution, the through-hole 3 is provided so that a flow channel for the adhesive to pass through can be formed on the support member 1, so that when the foam glue is poured, the adhesive flows along the through-hole 3 to the battery cell, and the through-hole 3 is provided so that part of the battery cell is exposed and connected to the adhesive, thereby improving the fixing effect on the battery cell and fully filling the gaps between the battery cells, thereby improving the integrity and stability of the constructed battery. In addition, the through-hole 3 can also make the adhesive fully wrap the support member 1, improve the connection strength between the support member 1 and the battery cell, thereby improving the connection stability between the electrical connector 2 and the battery cell.

[0040] Optionally, in one embodiment of the present disclosure, the support member 1 is a blister film support plate made by a blister process, and a mounting hole 14 is provided on the support member 1, which passes through the first surface and the second surface of the support member 1. After the electrical connector 2 is connected to the first surface of the support member 1, the electrical connector 2 can pass through the mounting hole 14 to be electrically connected to the battery cell. Optionally, in some examples, the electrical connector 2 can be connected to the battery cell by laser welding. Optionally, in some examples, the electrical connector 2 can be an aluminum busbar, or a copper busbar.

[0041] Optionally, in an embodiment of the present disclosure, the through portion 3 includes a first through portion 31 , the electrical connector 2 includes a plurality of first rows 21 spaced apart along a first direction, and at least one first through portion 31 is disposed between two adjacent first rows 21 in the first direction.

[0042] The first through-portion 31 is disposed between two adjacent first rows 21 , that is, the first through-portion 31 is disposed between two adjacent battery cells spaced apart along the first direction, so that the gaps between the battery cells can be more effectively filled and encapsulated, thereby improving the fixing effect of the battery cells.

[0043] Optionally, in one embodiment of the present disclosure, the first through-portion 31 is configured as a through-portion, and the number of first through-portions 31 between two adjacent first rows 21 is multiple and arranged at intervals along the second direction, and multiple first through-portions 31 constitute a first through-portion group. By such an arrangement, the adhesive can flow through the multiple first through-portions 31 to between the battery cells arranged adjacently in the first direction, without affecting the structural strength of the support member 1 itself, while increasing the connection area between the adhesive and the battery cells.

[0044] It can be understood that, in the second direction, the battery cell can be a rectangular structure or a plurality of battery cells arranged at intervals, wherein the first through-portions 31 in each first through-portion group can correspond one-to-one to the battery cells arranged at intervals in the second direction.

[0045] Optionally, in another embodiment of the present disclosure, the first through-portion 31 is configured as a through-portion, and the number of first through-portions 31 between two adjacent first rows 21 is one and extends along the second direction. In other words, the first through-portion 31 between two adjacent first rows 21 is a long strip-shaped through-portion for adhesive to pass through.

[0046] It can be understood that, in the first direction, when there are multiple first rows 21, there are also multiple first through-portion groups or single long first through-portions 31 in the first direction and they are arranged at intervals. In other words, when there are multiple first through-portions 31 in the first through-portion group, the first through-portions 31 on the entire support member 1 are arranged in an array.

[0047] Optionally, in one embodiment of the present disclosure, at least a portion of the support member 1 near the first through-hole 31 is formed with a convex portion 11 protruding away from the battery cell, and a first spacing space is left between the convex portion 11 and the battery cell, and the first spacing space is used to accommodate adhesive. The convex portion 11 can be provided to relatively raise a portion of the support member 1, so that the first spacing space between the convex portion 11 and the battery cell can be filled with adhesive, and the adhesive can be connected to the battery cell, while covering the support member 1, which can better improve the integrity and stability of the entire battery.

[0048] In some examples, the convex portion 11 may be arranged at the edge of the first through portion 31, or may be arranged around the first through portion 31. A plurality of convex portions 11 may be arranged around the first through portion 31, and the plurality of convex portions 11 may be arranged at intervals, or one convex portion 11 may be arranged around the edge of the first through portion 31. In other examples, the convex portion 11 may also be arranged as a long strip-shaped protrusion of the support member 1 close to the first through portion 31.

[0049] Optionally, in an embodiment of the present disclosure, the through portion 3 includes a second through portion 32 , the electrical connector 2 includes a plurality of second rows 22 spaced apart along the second direction, and at least one second through portion 32 is disposed between two adjacent second rows 22 in the second direction.

[0050] The second through-portion 32 is disposed between two adjacent second rows 22 , that is, the second through-portion 32 is disposed between two adjacent battery cells spaced apart along the second direction, so that the gaps between the battery cells can be more effectively filled and sealed, thereby improving the fixing effect of the battery cells.

[0051] It should be noted that the first through portion 31 and the second through portion 32 may exist at the same time, or the first through portion 31 or the second through portion 32 may be separately provided as required. Of course, providing the first through portion 31 and the second through portion 32 at the same time can facilitate the passage of the adhesive, thereby improving the fixing effect on the battery cell and the covering effect on the support member 1.

[0052] Optionally, in one embodiment of the present disclosure, a rib 12 is provided on the support member 1, and the rib 12 is constructed to protrude away from the battery cell, leaving a second spacing space between the rib 12 and the battery cell, the second spacing space is used to accommodate adhesive, and the second through portion 32 is provided on the rib 12.

[0053] Among them, the convex rib 12 can increase the structural strength of the support member 1 itself. At the same time, the setting of the convex rib 12 can form a second spacing space with the battery cell. The adhesive can flow into the second spacing space through the second through-hole portion 32. The second spacing space can be filled with adhesive, and the adhesive can be connected to the battery cell and wrap the support member 1 at the same time, which can better improve the integrity and stability of the entire battery.

[0054] Optionally, in one embodiment of the present disclosure, the second through-portion 32 is configured as a slot, the number of the second through-portions 32 between two adjacent second rows 22 is multiple and spaced apart along the first direction, the multiple second through-portions 32 constitute a second through-portion group, and the rib 12 extends along the first direction.

[0055] By such arrangement, the adhesive can flow through the plurality of second through-holes 32 to between the battery cells arranged adjacently in the second direction, without affecting the structural strength of the support member 1 itself, while increasing the connection area between the adhesive and the battery cells.

[0056] It can be understood that, in the first direction, the battery cell can be a rectangular structure or a plurality of battery cells arranged at intervals, wherein the second through-portions 32 in each second through-portion group can correspond one-to-one to the battery cells arranged at intervals in the first direction.

[0057] Optionally, in another embodiment of the present disclosure, the second through-portion 32 is configured as a long strip slot, and the number of the second through-portion 32 between two adjacent second rows 22 is one and extends along the first direction. In other words, the second through-portion 32 between two adjacent second rows 22 is a whole long strip slot for the adhesive to pass through.

[0058] It can be understood that, in the second direction, when there are multiple second rows 22, there are also multiple second through-portion groups or single second through-portions 32 in a strip shape in the second direction and they are arranged at intervals. In other words, when there are multiple second through-portions 32 in the second through-portion group, the second through-portions 32 on the entire support member 1 are arranged in an array.

[0059] Optionally, in one embodiment of the present disclosure, the through portion 3 includes a third through portion 33, the third through portion 33 coincides with the projection of the electrical connector 2 on the support member 1 along the third direction, and a connecting hole 23 is provided on the electrical connector 2, the connecting hole 23 is connected to the third through portion 33. The third through portion 33 can increase the connection area between the position where the electrical connector 2 is provided and the battery cell, thereby improving the fixation of the battery cell and the covering effect of the support member 1.

[0060] Among them, the third direction refers to the direction perpendicular to the support member 1, that is, the third through-portion 33 is directly opposite to the electrical connector 2, and the adhesive flows into the third through-portion 33 through the connecting hole 23 on the electrical connector 2, and then passes through the support member 1 to connect with the battery cell and fills between the support member 1 and the battery cell.

[0061] Optionally, in one embodiment of the present disclosure, the electrical connector 2 includes a plurality of single rows 24 distributed in an array, wherein the plurality of single rows 24 are arranged at intervals along the first direction to form a first row 21, and the plurality of single rows 24 are arranged at intervals along the second direction to form a second row 22, and each single row 24 is provided with a connecting hole 23, and the number of the third through-holes 33 is multiple and corresponds to the single rows 24 one by one, and the third through-holes 33 are configured as through holes. By such an arrangement, each single row 24 of the electrical connector 2 can allow adhesive to flow through, and is connected to the battery cell through the third through-holes 33, thereby improving the integrity and stability of the entire battery.

[0062] Optionally, in another embodiment of the present disclosure, each single row 24 may also be provided with a plurality of third through portions 33 , which may be specifically arranged according to the design.

[0063] In some examples, the electrical connector 2 includes multiple single rows 24 distributed in an array, the number of first through-portion groups is multiple, the number of first through-portion 31 in the first through-portion group is multiple, so that the first through-portion 31 is distributed in an array, the number of second through-portion groups is multiple, the number of second through-portion 32 in the second through-portion group is multiple, the second through-portions 32 are arranged in an array as a whole, and the number of third through-portions 33 is multiple, also distributed in an orderly manner.

[0064] Optionally, in an embodiment of the present disclosure, a connecting portion 13 is provided on the support member 1, and a matching portion 25 is provided on the electrical connector 2, and the connecting portion 13 is engaged with the matching portion 25. This arrangement facilitates the rapid connection and assembly of the electrical connector 2 and the support member 1.

[0065] Optionally, in one embodiment of the present disclosure, the connection portion 13 is configured as a double heat rivet stud, and the matching portion 25 is a connection hole provided on the electrical connector 2, and the double heat rivet stud passes through the connection hole to achieve connection and fixation between the electrical connector 2 and the support member 1. There may be two connection holes, and the connecting hole 23 of the above embodiment may be provided between the two connection holes.

[0066] Optionally, in another embodiment of the present disclosure, the connecting portion 13 may also be a bolt, and the matching portion 25 may be a connecting hole, and the connection and fixation are achieved by the bolt passing through the connecting hole and connecting with a nut.

[0067] Optionally, in an embodiment of the present disclosure, the busbar assembly further includes a sampling circuit board 4 , the sampling circuit board 4 is connected to the support 1 , the sampling circuit board 4 has an electrical connection portion 13 , and the electrical connection portion 13 is electrically connected to the electrical connector 2 .

[0068] The sampling circuit board 4 is bonded to the support 1 by adhesive, and the sampling circuit board 4 is electrically connected to the electrical connector 2 by laser welding through the electrical connector 13 to achieve voltage sampling. The electrical connector 13 can be a nickel sheet.

[0069] The second aspect of the present disclosure further provides a battery, comprising a battery cell and the above-mentioned busbar assembly, wherein the second surface of the support member 1 of the busbar assembly is connected to the battery cell, and the electrical connector 2 of the busbar assembly is electrically connected to the battery cell. In some examples, the number of busbar assemblies may be one or more, and multiple busbar assemblies may be arranged in parallel.

[0070] A third aspect of the present disclosure also provides a vehicle, comprising the above-mentioned battery.

[0071] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0072] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0073] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A busbar assembly, characterized in that: including a support member and an electrical connection member; The support member has a first surface and a second surface arranged opposite to each other, the electrical connector is connected to the first surface of the support member, the second surface of the support member is used to connect with the battery cell, and a through portion penetrating the first surface and the second surface of the support member is provided on the support member, and the through portion is used for adhesive to pass through.

2. The busbar assembly according to claim 1, characterized in that: The through-portions include a first through-portion, and the electrical connector includes a plurality of first rows spaced apart along a first direction. In the first direction, at least one first through-portion is disposed between two adjacent first rows.

3. The busbar assembly according to claim 2, characterized in that: The first through-portions are configured as through-holes. The number of the first through-portions between two adjacent first rows is plural and the first through-portions are arranged at intervals along the second direction. The plurality of the first through-portions constitute a first through-portion group.

4. The busbar assembly according to claim 2, characterized in that: A convex portion protruding away from the battery cell is formed at least partially in the support member near the first through portion, and a first spacing space is reserved between the convex portion and the battery cell, and the first spacing space is used to accommodate the adhesive.

5. The busbar assembly according to claim 1, characterized in that: The through-portions include second through-portions, the electrical connector includes a plurality of second rows spaced apart along a second direction, and at least one second through-portion is disposed between two adjacent second rows in the second direction.

6. The busbar assembly according to claim 5, characterized in that: The support member is provided with a convex rib, the convex rib is configured to bulge away from the battery cell, a second spacing space is left between the convex rib and the battery cell, the second spacing space is used to accommodate the adhesive, and the second through portion is provided on the convex rib.

7. The busbar assembly according to claim 6, characterized in that: The second through-portions are configured as slots, the number of the second through-portions between two adjacent second rows is plural and spaced apart along the first direction, the plurality of second through-portions constitute a second through-portion group, and the ribs extend along the first direction.

8. The busbar assembly according to claim 1, characterized in that: The through-portion includes a third through-portion, the third through-portion coincides with a projection of the electrical connector on the support member along a third direction, and a connecting hole is provided on the electrical connector, the connecting hole is connected with the third through-portion.

9. The busbar assembly according to claim 8, characterized in that: The electrical connector includes a plurality of single rows distributed in an array, wherein the plurality of single rows are spaced apart along a first direction to form a first row, and the plurality of single rows are spaced apart along a second direction to form a second row, each of the single rows is provided with a connecting hole, the number of the third through portions is plural and corresponds one-to-one to the single rows, and the third through portions are constructed as through holes.

10. The busbar assembly according to claim 1, characterized in that: The supporting member is provided with a connecting portion, the electrical connecting member is provided with a matching portion, and the connecting portion is clamped with the matching portion.

11. The busbar assembly according to any one of claims 1 to 10, characterized in that: The busbar assembly further includes a sampling circuit board, which is connected to the support member. The sampling circuit board has an electrical connection portion, which is electrically connected to the electrical connection member.

12. A battery, characterized in that: It comprises a battery cell and a busbar assembly as claimed in any one of claims 1 to 11, wherein the second surface of the support member of the busbar assembly is connected to the battery cell, and the electrical connector of the busbar assembly is electrically connected to the battery cell.

13. A vehicle, characterized in that: Comprising the battery of claim 12.

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