Battery assembly and battery pack

Abstract

The utility model discloses a battery assembly and a battery pack. The battery assembly comprises a plurality of battery modules and a temperature adjusting assembly. The plurality of battery modules are arranged along a first direction, each battery module comprises a battery pack and a busbar assembly arranged on the battery pack, the battery pack comprises a plurality of battery monomers arranged along a second direction, the second direction is perpendicular to the first direction, and the busbar assembly is arranged at at least one end of the battery pack along the first direction; the busbar assembly comprises a plurality of busbars arranged in the second direction, the busbars are electrically connected with the pole columns of the battery monomers, and a containing gap is defined between every two adjacent battery monomers in the same battery pack; the temperature adjusting assembly is used for adjusting the temperature of the battery monomers and comprises a temperature adjusting plate, the same temperature adjusting plate is accommodated in the accommodating gaps of the plurality of battery modules, and an avoiding groove for avoiding the temperature adjusting plate is formed in the busbar assembly, so that the effect of adjusting the temperature of the plurality of battery modules by the same temperature adjusting plate is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to a battery assembly and a battery pack. Background Art

[0002] In order to ensure that the battery can work stably and reliably, a temperature regulating plate is usually provided to regulate the temperature of the battery, for example, a water cooling plate is provided to dissipate heat from the battery.

[0003] In the related art, due to the limitation of the battery module structure, one temperature regulating plate can only regulate the temperature of a single battery module, and it is impossible to achieve that one temperature regulating plate regulates the temperature of multiple battery modules, which results in a large number of parts and a complex overall structure. Therefore, there is room for improvement. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a battery assembly, which has a bypass groove for bypassing the temperature regulating plate formed on the bus assembly, so that the same temperature regulating plate can be matched with multiple battery modules, thereby achieving the temperature regulation function of the same temperature regulating plate for multiple battery modules, reducing the number of parts and simplifying the overall structure.

[0005] The utility model also provides a battery pack having the battery assembly.

[0006] According to the battery assembly of the embodiment of the first aspect of the utility model, the battery assembly includes: a plurality of battery modules, the plurality of battery modules are arranged along a first direction, each of the battery modules includes a battery pack and a bus assembly arranged on the battery pack, the battery pack includes a plurality of battery cells arranged along a second direction, the second direction is perpendicular to the first direction, the bus assembly is arranged at least one end of the battery pack along the first direction, the bus assembly includes a plurality of bus bars arranged along the second direction, the bus bars are electrically connected to the poles of the battery cells, and an accommodation gap is defined between two adjacent battery cells in the same battery pack; a temperature adjustment assembly, used to adjust the temperature of the battery cells and including a temperature adjustment plate, the same temperature adjustment plate is accommodated in the accommodation gap of the plurality of battery modules, and a avoidance groove for avoiding the temperature adjustment plate is formed on the bus assembly.

[0007] According to the battery assembly of the embodiment of the utility model, a avoidance groove for avoiding the temperature regulating plate is formed on the bus assembly, which can facilitate the cooperation of the same temperature regulating plate with multiple battery modules, so that the same temperature regulating plate can achieve the temperature regulation function of multiple battery modules, reduce the number of components, and simplify the overall structure.

[0008] According to some embodiments of the present invention, the temperature regulating plate is formed as a flat plate structure extending along the first direction, and the avoidance groove and the corresponding accommodating gap corresponding to the same temperature regulating plate are arranged opposite to each other in the first direction.

[0009] According to some embodiments of the utility model, a plurality of the accommodating gaps arranged along the second direction are formed in each of the battery modules, the number of the temperature regulating plates is the same as the number of the accommodating gaps of a single battery module and corresponds one-to-one to each other, and a plurality of the avoidance grooves are formed on each of the bus assemblies, the number of the plurality of the avoidance grooves on a single bus assembly is the same as the number of the temperature regulating plates and corresponds one-to-one to each other.

[0010] According to some embodiments of the present invention, the width of the avoidance groove corresponding to the same temperature regulating plate in the second direction is greater than the width of the corresponding accommodating gap in the second direction; and / or the width of the avoidance groove in the second direction ranges from 3 mm to 10 mm.

[0011] According to some embodiments of the utility model, the bus assembly includes a bus bracket, which is an insulating part and extends along the second direction. The multiple busbars of a single bus assembly are all arranged on the same bus bracket. The avoidance groove is formed on the bus bracket, and a avoidance notch for avoiding the avoidance groove is formed on the bus. An avoidance gap for avoiding the avoidance groove is defined between two adjacent busbars on the same bus bracket.

[0012] According to some embodiments of the utility model, the bus bracket is provided with reinforcing ribs, the reinforcing ribs are located on the outer peripheral side of the avoidance groove and extend along the circumference of the avoidance groove, part of the reinforcing ribs are located in the avoidance gap, and part of the reinforcing ribs are located in the avoidance notch; in the first direction, the reinforcing ribs protrude from the bus setting.

[0013] According to some embodiments of the utility model, the busbar bracket includes a first bracket portion and a second bracket portion that are connected, the first bracket portion is located on one side of the battery pack along a third direction, the third direction, the second direction and the first direction are perpendicular to each other, the second bracket portion is located on one side of the battery pack along the first direction, and the second bracket portion is formed with the avoidance groove; the busbar includes a connected bus portion and a connecting portion, the bus portion is arranged on the first bracket portion, the connecting portion is arranged on the second bracket portion, and the connecting portion is formed with the avoidance gap.

[0014] According to some embodiments of the utility model, a limiting flange is formed on a side of the first bracket portion away from the second bracket portion, the limiting flange is located on a side of the bus portion away from the connecting portion, and the limiting flange extends along the second direction; and / or, a connecting column is formed on the first bracket portion, a connecting hole is formed on the bus portion, and the connecting column is passed through the connecting hole to fix the bus to the bus bracket.

[0015] According to some embodiments of the present invention, the busbar is arranged on a side of the busbar bracket away from the battery cell, and a clearance opening for avoiding the pole is formed on the busbar bracket.

[0016] According to the second aspect of the present invention, the battery pack includes: a box; and a battery assembly according to the first aspect of the present invention, wherein the battery assembly is disposed in the box.

[0017] According to the battery pack of the embodiment of the utility model, by providing the above-mentioned battery assembly, a avoidance groove for avoiding the temperature regulating plate is formed on the bus assembly of the battery assembly, which can facilitate the cooperation of the same temperature regulating plate with multiple battery modules, so that the same temperature regulating plate can achieve the function of temperature regulation of multiple battery modules, reduce the number of components, and simplify the overall structure.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 is a partial structural exploded diagram of a battery pack according to some embodiments of the utility model;

[0021] Figure 2 yes Figure 1 A three-dimensional schematic diagram of a battery assembly in FIG.

[0022] Figure 3 yes Figure 2 The enlarged view of A in FIG.

[0023] Figure 4 yes Figure 2 An exploded view of the battery assembly;

[0024] Figure 5 yes Figure 4 The enlarged view of point B in FIG.

[0025] Figure 6yes Figure 2 A three-dimensional schematic diagram of a busbar assembly of a battery assembly;

[0026] Figure 7 yes Figure 6 The exploded view at C in the figure;

[0027] Figure 8 is a three-dimensional schematic diagram of a busbar assembly of a battery pack according to other embodiments of the utility model;

[0028] Fig. 9 yes Figure 8 The enlarged view of D in FIG.

[0029] Fig.10 yes Figure 8 Exploded view of the busbar assembly in Figure 1.

[0030] Reference numerals:

[0031] 100. Battery pack;

[0032] 1. Battery assembly; 1a. Battery module; 11. Battery pack; 111. Battery cell; 112. Accommodation gap;

[0033] 12. busbar assembly; 121. busbar; 122. avoidance groove; 123. avoidance gap; 124. busbar bracket; 125. avoidance gap; 126. reinforcing rib; 127. first bracket part; 128. second bracket part; 129. busbar part; 130. connecting part; 131. avoidance opening; 132. limit flange; 133. connecting column; 134. connecting hole;

[0034] 2. Temperature regulating plate; 31. Box body; 32. First collecting pipe; 33. Second collecting pipe. DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] Reference below Figure 1-Figure 10 A battery assembly 1 according to an embodiment of the present invention is described.

[0037] Reference Figure 1 and Figure 2 According to the battery assembly 1 of the first embodiment of the utility model, the battery assembly 1 includes a plurality of battery modules 1a and a temperature adjustment component. The plurality of battery modules 1a are arranged along a first direction (for example, referring to Figure 1-Figure 3The battery module 1a includes a battery pack 11 and a bus assembly 12 provided on the battery pack 11. The battery pack 11 includes a plurality of bus assemblies 12 arranged along a second direction (e.g., referring to Figure 1-Figure 3 The battery pack 11 includes a plurality of battery cells 111 arranged in a second direction (in the e2 direction), the second direction is perpendicular to the first direction, the bus assembly 12 is provided at least at one end of the battery pack 11 along the first direction, the bus assembly 12 includes a plurality of bus bars 121 arranged along the second direction, the bus bars 121 are electrically connected to the poles of the battery cells 111, and an accommodating gap 112 is defined between two adjacent battery cells 111 in the same battery pack 11.

[0038] The battery assembly 1 also includes a temperature regulating component, which is used to regulate the temperature of the battery cell 111 and includes a temperature regulating plate 2. The same temperature regulating plate 2 is accommodated in the accommodating gap 112 of multiple battery modules 1a. By accommodating the temperature regulating plate 2 in the accommodating gap 112 of the battery module 1a, the temperature regulating plate 2 and the battery module 1a can be thermally contacted or thermally connected, so that the temperature regulating plate 2 can regulate the temperature of the battery module 1a. An avoidance groove 122 for avoiding the temperature regulating plate 2 is formed on the bus assembly 12. Since the bus assembly 12 is arranged at at least one end of the battery pack 11 along the first direction, the avoidance groove 122 can play a role in installation avoidance for the assembly between the temperature regulating plate 2 and the battery pack 11, so that the temperature regulating plate 2 can achieve the temperature regulation effect of the battery pack 11.

[0039] Furthermore, since a plurality of battery modules 1a are arranged along a first direction, and the battery module 1a includes a plurality of battery cells 111 arranged along a second direction, an avoidance groove 122 for avoiding the temperature regulating plate 2 is formed on the bus assembly 12, so that the temperature regulating plate 2 and the plurality of battery modules 1a arranged along the first direction can be smoothly assembled, thereby achieving the temperature regulating effect of the same temperature regulating plate 2 on the plurality of battery modules 1a, reducing the number of temperature regulating plates 2, and simplifying the overall structure.

[0040] The temperature regulating plate 2 can be used to dissipate heat from the battery module 1a, or can be used to heat the battery module 1a. For example, during the operation of the battery module 1a, the battery cell 111 generates heat, and the temperature regulating plate 2 is located in the accommodation gap 112 of the battery module 1a, which can absorb the heat generated by the battery cell 111, thereby completing the temperature regulation of the battery module 1a.

[0041] Among them, the bus assembly 12 is arranged at at least one end of the battery pack 11 along the first direction, which may include the following situations: for example, the bus assembly 12 may be arranged at one end of the battery pack 11 along the first direction, and the bus assembly 12 may not be arranged at the other end of the battery pack 11 along the first direction; for another example, the bus assembly 12 may be arranged at both ends of the battery pack 11 along the first direction.

[0042] According to the battery assembly 1 of the embodiment of the utility model, the avoidance groove 122 for avoiding the temperature regulating plate 2 is formed on the bus assembly 12, which can facilitate the same temperature regulating plate 2 to cooperate with multiple battery modules 1a, so that the same temperature regulating plate 2 can achieve the function of temperature regulation for multiple battery modules 1a, reduce the number of components, and simplify the overall structure.

[0043] Reference Figure 4 According to some embodiments of the utility model, the temperature regulating plate 2 is formed as a flat plate structure extending along the first direction, and the avoidance groove 122 and the corresponding accommodating gap 112 corresponding to the same temperature regulating plate 2 are arranged relative to each other in the first direction, so that the temperature regulating plate 2 can be inserted into the avoidance groove 122 and the accommodating gap 112 to complete the temperature regulation of the battery pack 11; it can also ensure that the same temperature regulating plate 2 can be inserted into the accommodating gap 112 of multiple battery modules 1a arranged along the first direction, and complete the temperature regulation of multiple battery modules 1a at the same time, thereby improving the temperature regulation efficiency of multiple battery modules 1a.

[0044] Reference Figure 4 According to some embodiments of the utility model, a plurality of accommodating gaps 112 arranged along the second direction are formed in each battery module 1a, the number of temperature regulating plates 2 is the same as the number of accommodating gaps 112 of a single battery module 1a and they correspond one to one respectively, and a plurality of avoidance grooves 122 are formed on each bus assembly 12, the number of the plurality of avoidance grooves 122 on a single bus assembly 12 is the same as the number of temperature regulating plates 2 and they correspond one to one respectively, so that the number of the plurality of avoidance grooves 122 on a single bus assembly 12 is the same as the number of accommodating gaps 112 of a single battery module 1a and the number of temperature regulating plates 2 and they correspond one to one respectively, thereby ensuring that the bus assembly 12 and the battery module 1a as a whole can be assembled smoothly with the temperature regulating plate 2. In addition, by providing a plurality of accommodating gaps 112 in a single battery module 1a and accommodating a temperature regulating plate 2 in each accommodating gap 112, the temperature regulating efficiency of the temperature regulating assembly for the battery module 1a can be improved, for example, the heat dissipation efficiency of the battery module 1a can be improved.

[0045] Reference Figure 4 and Figure 5According to some embodiments of the present invention, the width of the avoidance groove 122 corresponding to the same temperature regulating plate 2 in the second direction is greater than the width of the corresponding accommodating gap 112 in the second direction. By setting the width of the avoidance groove 122 to be larger, it is convenient to insert the temperature regulating plate 2 into the accommodating gap 112 of the battery module 1a through the avoidance groove 122, thereby facilitating the assembly between the temperature regulating plate 2 and multiple battery modules 1a.

[0046] Reference Figure 4 and Figure 5 According to some embodiments of the present invention, the width of the avoidance groove 122 in the second direction ranges from 3 mm to 10 mm. For example, the width of the avoidance groove 122 in the second direction may be 3 mm, 4 mm, 6 mm, 7.5 mm, 10 mm, etc. By ensuring that the width of the avoidance groove 122 in the second direction is not less than 3 mm, it can be ensured that the width of the avoidance groove 122 in the second direction is relatively large, so that the temperature regulating plate 2 can be inserted into the accommodating gap 112 of the battery module 1a through the avoidance groove 122, thereby making the assembly of the temperature regulating plate 2 and the corresponding avoidance groove 122 smooth; by ensuring that the width of the avoidance groove 122 in the second direction is not greater than 10 mm, it can be avoided that the width of the avoidance groove 122 in the second direction is too large, which may cause the width of the electrical connection part of the bus assembly 12 with the pole to be too small, thereby weakening the electrical connection effect between the bus 121 and the battery cell 111, thereby ensuring the area of ​​the physical part of the bus assembly 12, ensuring the electrical connection effect between the bus 121 and the battery cell 111, and ensuring the structural strength of the bus assembly 12.

[0047] By making the width of the avoidance groove 122 in the second direction range from 3mm to 10mm, it can be ensured that the width of the avoidance groove 122 in the second direction is relatively large, so that the temperature regulating plate 2 can be inserted into the accommodating gap 112 of the battery module 1a through the avoidance groove 122, thereby making the assembly of the temperature regulating plate 2 and the corresponding avoidance groove 122 smooth; and it can avoid that the width of the avoidance groove 122 in the second direction is too large, which makes the width of the electrical connection part of the bus assembly 12 with the pole too small, thereby weakening the electrical connection effect between the bus 121 and the battery cell 111, and ensures the area of ​​the physical part of the bus assembly 12, the electrical connection effect between the bus 121 and the battery cell 111, and the structural strength of the bus assembly 12.

[0048] Reference Figure 4 and Figure 5According to some embodiments of the present invention, the width of the avoidance groove 122 corresponding to the same temperature regulating plate 2 in the second direction is greater than the width of the corresponding accommodation gap 112 in the second direction; and the width of the avoidance groove 122 in the second direction ranges from 3 mm to 10 mm. By setting the width of the avoidance groove 122 to be larger, it is convenient to insert the temperature regulating plate 2 into the accommodation gap 112 of the battery module 1a through the avoidance groove 122, and it is convenient to assemble the temperature regulating plate 2 with multiple battery modules 1a. By making the width of the avoidance groove 122 in the second direction range from 3mm to 10mm, it can be ensured that the width of the avoidance groove 122 in the second direction is relatively large, so that the temperature regulating plate 2 can be inserted into the accommodating gap 112 of the battery module 1a through the avoidance groove 122, thereby making the assembly of the temperature regulating plate 2 and the corresponding avoidance groove 122 smooth; and it can avoid that the width of the avoidance groove 122 in the second direction is too large, which makes the width of the electrical connection part of the bus assembly 12 with the pole too small, thereby weakening the electrical connection effect between the bus 121 and the battery cell 111, and ensures the area of ​​the physical part of the bus assembly 12, the electrical connection effect between the bus 121 and the battery cell 111, and the structural strength of the bus assembly 12.

[0049] Reference Figure 5-Figure 7 According to some embodiments of the utility model, the bus assembly 12 includes a bus bracket 124, which is an insulating member and extends along the second direction. For example, the bus bracket 124 can be a plastic member. Multiple bus bars 121 of a single bus assembly 12 are all arranged on the same bus bracket 124, so that the multiple bus bars 121 can be integrated on the same bus bracket 124, which facilitates the assembly connection between the multiple bus bars 121 and the battery pack 11.

[0050] The busbar bracket 124 is also formed with an avoidance groove 122, and the busbar 121 is formed with an avoidance notch 123 for avoiding the avoidance groove 122. The avoidance groove 122 is used to avoid the accommodation gap 112 between the battery packs 11. Since the temperature regulating plate 2 is accommodated in the accommodation gap 112, when the temperature regulating plate 2 and the battery pack 11 are assembled, the avoidance groove 122 can play a role in installation avoidance for the temperature regulating plate 2; since multiple busbars 121 are integrated on the same busbar bracket 124 and the avoidance notch 123 for avoiding the avoidance groove 122 is formed on the busbar 121, the avoidance notch 123 is arranged relative to the avoidance groove 122, thereby ensuring smooth assembly between the busbar assembly 12 and the temperature regulating plate 2.

[0051] In addition, an avoidance gap 125 for avoiding the avoidance groove 122 is defined between two adjacent busbars 121 on the same busbar bracket 124. The avoidance gap 125 can ensure that there is a certain electrical insulation distance between the two adjacent busbars 121, thereby preventing the two adjacent busbars 121 from directly contacting and electrically connecting.

[0052] Reference Figure 5-Figure 7 According to some embodiments of the utility model, a reinforcing rib 126 is provided on the busbar bracket 124, and the reinforcing rib 126 is located on the outer peripheral side of the avoidance groove 122 and extends along the circumferential direction of the avoidance groove 122. Part of the reinforcing rib 126 is located in the avoidance gap 125, and part of the reinforcing rib 126 is located in the avoidance gap 123. The reinforcing rib 126 can enhance the structural strength near the avoidance groove 122, and can also enhance the overall structural strength of the busbar bracket 124; and, in the first direction, the reinforcing rib 126 protrudes from the busbar 121. Since the busbar bracket 124 is an insulating member, the reinforcing rib 126 is an insulating member and is located between the temperature regulating plate 2 and the busbar 121. The reinforcing rib 126 can play a role of electrical insulation between the temperature regulating plate 2 and the busbar 121, and can avoid the busbar 121 from contacting the temperature regulating plate 2 and generating an electrical connection.

[0053] Reference Figure 4 and Figure 5 According to some embodiments of the present invention, the busbar bracket 124 includes a first bracket portion 127 and a second bracket portion 128 connected to each other. The first bracket portion 127 is located along the third direction (for example, referring to Figure 1-Figure 3 The third direction, the second direction and the first direction are perpendicular to each other. The second bracket portion 128 is located on one side of the battery pack 11 along the first direction. The second bracket portion 128 is formed with an avoidance groove 122. The busbar 121 includes a connected bus portion 129 and a connecting portion 130. The bus portion 129 is arranged on the first bracket portion 127. The connecting portion 130 is arranged on the second bracket portion 128. The connecting portion 130 is formed with an avoidance gap 123. The avoidance gap 123 is used to avoid the avoidance groove 122. The avoidance groove 122 is used to avoid the temperature regulating plate 2. The avoidance gap 123 and the avoidance groove 122 cooperate to provide installation avoidance for the temperature regulating plate 2 when it is installed in the accommodation gap 112 between the battery packs 11.

[0054] Optionally, according to one embodiment of the utility model, multiple bus bars 121 are integrated on the same bus bar bracket 124, and the connecting portion 130 of the bus bar 121 is arranged on the second bracket portion 128 of the bus bar bracket 124, the second bracket portion 128 is formed with an avoidance groove 122 and the connecting portion 130 is formed with an avoidance notch 123, the avoidance groove 122 is used to avoid the accommodating gap 112 between the battery packs 11, since the temperature regulating plate 2 is accommodated in the accommodating gap 112 of the battery pack 11, when the temperature regulating plate 2 is assembled with the battery pack 11, the avoidance notch 123 and the avoidance groove 122 can play an installation avoidance role for the temperature regulating plate 2, thereby ensuring smooth assembly between the bus assembly 12 and the temperature regulating plate 2.

[0055] Reference Figure 6 and Figure 7 According to some embodiments of the present invention, a limiting flange 132 is formed on the side of the first bracket portion 127 away from the second bracket portion 128, and the limiting flange 132 can enhance the overall structural strength of the bus bracket 124; and, the limiting flange 132 is located on the side of the bus portion 129 away from the connecting portion 130, and the limiting flange 132 extends along the second direction. The limiting flange 132 can limit the assembly of the bus 121 on the bus bracket 124, and can ensure that the assembly position of the bus 121 on the bus bracket 124 is accurate.

[0056] Reference Figure 8 and Fig. 9 According to some embodiments of the utility model, a connecting column 133 is formed on the first bracket portion 127, and a connecting hole 134 is formed on the busbar portion 129. The connecting column 133 is inserted into the connecting hole 134 to fix the busbar 121 to the busbar bracket 124. For example, the connection between the connecting column 133 on the first bracket portion 127 and the connecting hole 134 on the busbar portion 129 can be achieved by riveting. The cooperation between the connecting column 133 and the connecting hole 134 can ensure the accurate assembly position of the busbar 121, and can also make the connection between the busbar 121 and the busbar bracket 124 simple and have strong stability.

[0057] Reference Figure 7 , Fig. 9 and Fig.10According to some embodiments of the utility model, a limiting flange 132 is formed on the side of the first bracket portion 127 away from the second bracket portion 128, the limiting flange 132 is located on the side of the bus portion 129 away from the connecting portion 130, and the limiting flange 132 extends along the second direction; and a connecting column 133 is formed on the first bracket portion 127, and a connecting hole 134 is formed on the bus portion 129, and the connecting column 133 is passed through the connecting hole 134 to fix the bus 121 to the bus bracket 124. The limiting flange 132 can enhance the overall structural strength of the bus bracket 124, and can also play a limiting role in the assembly of the bus 121 on the bus bracket 124, thereby ensuring that the bus 121 is accurately assembled on the bus bracket 124; and, the cooperation between the connecting column 133 and the connecting hole 134 can ensure that the bus 121 is accurately assembled, and can also make the connection between the bus 121 and the bus bracket 124 simple and have strong stability.

[0058] Reference Figure 4 and Figure 5 According to some embodiments of the present invention, the busbar 121 is arranged on the side of the busbar bracket 124 away from the battery cell 111. For example, the busbar bracket 124 can be a plastic part. The busbar bracket 124 is located between the busbar 121 and the battery cell 111, so that there is a certain insulation effect between the busbar 121 and the shell of the battery cell 111, which can avoid the busbar 121 and the shell of the battery cell 111 directly contacting each other to cause short circuit and other problems; and the busbar bracket 124 is formed with an avoidance opening 131 for avoiding the pole, so as to facilitate the electrical connection between the connecting portion 130 of the busbar 121 and the pole of the battery cell 111.

[0059] Reference Figure 1 The battery pack 100 according to the second embodiment of the present invention comprises a box body 31 and a battery assembly 1 according to the first embodiment of the present invention, wherein the battery assembly 1 is disposed in the box body 31 .

[0060] Optionally, according to an embodiment of the utility model, there are multiple battery assemblies 1, and the multiple battery assemblies 1 are arranged along the second direction. The battery pack 100 also includes a first collector 32 and a second collector 33. The first collector 32 and the second collector 33 are arranged on opposite sides of the battery assembly 1 along the first direction and both extend along the second direction. A heat exchange flow channel is formed in the temperature regulating plate 2. The first collector 32 is connected to all the temperature regulating plates 2 of each battery assembly 1, and the second collector 33 is connected to all the temperature regulating plates 2 of each battery assembly 1. One of the first collector 32 and the second collector 33 can be used as a liquid inlet pipe and the other as a liquid outlet pipe. The heat exchange medium (such as water) can flow into the liquid inlet pipe and be distributed to the multiple temperature regulating plates 2 through the multiple liquid inlet pipes, such as the heat exchange flow channels in the multiple temperature regulating plates 2. After flowing through the heat exchange flow channel, it flows out of the temperature regulating plates 2. The heat exchange medium flowing out of the multiple temperature regulating plates 2 is collected in the liquid outlet pipe. When the heat exchange medium flows in the heat exchange channel, it can exchange heat with the temperature regulating plate 2, and the temperature regulating plate 2 exchanges heat with the battery module 1a, thereby achieving temperature regulation of the battery module 1a.

[0061] According to the battery pack 100 of the embodiment of the utility model, by setting the above-mentioned battery assembly 1, a avoidance groove 122 for avoiding the temperature regulating plate 2 is formed on the bus assembly 12 of the battery assembly 1, which can facilitate the same temperature regulating plate 2 to cooperate with multiple battery modules 1a, so that the same temperature regulating plate 2 can achieve the function of temperature regulation of multiple battery modules 1a, reduce the number of components, and simplify the overall structure.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0063] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A battery assembly, characterized in that: include: A plurality of battery modules, wherein the plurality of battery modules are arranged along a first direction, each of the battery modules comprises a battery pack and a bus assembly provided on the battery pack, the battery pack comprises a plurality of battery cells arranged along a second direction, the second direction being perpendicular to the first direction, the bus assembly being provided at least at one end of the battery pack along the first direction, the bus assembly comprising a plurality of bus bars arranged along the second direction, the bus bars being electrically connected to poles of the battery cells, and an accommodation gap being defined between two adjacent battery cells in the same battery pack; The temperature regulating component is used to regulate the temperature of the battery cell and includes a temperature regulating plate. The same temperature regulating plate is accommodated in the accommodating gap of the plurality of battery modules. The busbar assembly is formed with an avoidance groove for avoiding the temperature regulating plate.

2. The battery assembly according to claim 1, characterized in that: The temperature regulating plate is formed as a flat plate structure extending along the first direction, and the avoidance groove and the corresponding accommodation gap corresponding to the same temperature regulating plate are arranged opposite to each other in the first direction.

3. The battery assembly according to claim 2, characterized in that: A plurality of accommodating gaps arranged along the second direction are formed in each of the battery modules, the number of the temperature regulating plates is the same as the number of the accommodating gaps of a single battery module and corresponds one-to-one to each other, and a plurality of avoidance grooves are formed on each of the bus assemblies, the number of the plurality of avoidance grooves on a single bus assembly is the same as the number of the temperature regulating plates and corresponds one-to-one to each other.

4. The battery assembly according to claim 2, characterized in that: The width of the avoidance groove corresponding to the same temperature regulating plate in the second direction is greater than the width of the corresponding accommodating gap in the second direction; and / or the width of the avoidance groove in the second direction ranges from 3 mm to 10 mm.

5. The battery assembly according to claim 1, characterized in that: The bus assembly includes a bus bracket, which is an insulating part and extends along the second direction. The multiple busbars of a single bus assembly are all arranged on the same bus bracket. The avoidance groove is formed on the bus bracket, and a avoidance notch for avoiding the avoidance groove is formed on the bus. An avoidance gap for avoiding the avoidance groove is defined between two adjacent busbars on the same bus bracket.

6. The battery assembly according to claim 5, characterized in that: The busbar bracket is provided with reinforcing ribs, which are located on the outer peripheral side of the avoidance groove and extend along the circumference of the avoidance groove. Part of the reinforcing ribs are located in the avoidance gap, and part of the reinforcing ribs are located in the avoidance notch. In the first direction, the reinforcing ribs protrude from the busbar setting.

7. The battery assembly according to claim 5, characterized in that: The busbar bracket comprises a first bracket portion and a second bracket portion connected to each other, the first bracket portion is located at one side of the battery pack along the third direction, the third direction, the second direction and the first direction are perpendicular to each other, the second bracket portion is located at one side of the battery pack along the first direction, and the second bracket portion is formed with the avoidance groove; The busbar includes a connected bus portion and a connecting portion, the bus portion is arranged on the first bracket portion, the connecting portion is arranged on the second bracket portion, and the connecting portion is formed with the avoidance gap.

8. The battery assembly according to claim 7, characterized in that: A limiting flange is formed on a side of the first bracket portion away from the second bracket portion, the limiting flange is located on a side of the bus portion away from the connecting portion, and the limiting flange extends along the second direction; and / or a connecting column is formed on the first bracket portion, a connecting hole is formed on the bus portion, and the connecting column is passed through the connecting hole to fix the bus to the bus bracket.

9. The battery assembly according to claim 5, characterized in that: The busbar is arranged on a side of the busbar support away from the battery cell, and a relief opening for avoiding the pole is formed on the busbar support.

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

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