Battery pack

Abstract

The utility model relates to the technical field of power batteries, and provides a battery pack which comprises a mounting box, battery cell modules and electrical parts, the mounting box is provided with a containing cavity, the battery cell modules and the electrical parts are located in the containing cavity and connected to the cavity wall of the containing cavity, and the battery cell modules and the electrical parts are distributed in the height direction of the mounting box at intervals; the battery pack can solve the problem that a battery pack in the prior art is large in length and width.

Description

Technical Field

[0001] The present application relates to the technical field of power batteries, and particularly relates to a battery pack. Background Art

[0002] The dimensions of the battery pack in the length direction and the width direction in the prior art are relatively large, which limits the installation position of the battery pack. For example, when the battery pack is applied to a vehicle or an aircraft, it can usually only be installed on the chassis of the vehicle or the aircraft. Utility Model Content

[0003] In view of this, the present application provides a battery pack to solve the problem that the length and width dimensions of the battery pack in the prior art are relatively large.

[0004] In order to achieve the above object, the present application provides the following technical solutions:

[0005] A battery pack includes an installation box, a battery cell module, and electrical components, wherein:

[0006] The installation box has a receiving cavity, the battery cell module and the electrical components are both located in the receiving cavity, and are both connected to the cavity wall of the receiving cavity. The battery cell module and the electrical components are spaced apart along the height direction of the installation box.

[0007] Optionally, the battery pack further includes a first mounting rack. The first mounting rack is connected to the side wall of the receiving cavity along a first direction and divides the receiving cavity into an electrical cavity and a battery cell cavity along a second direction. The electrical components are located in the electrical cavity and are mounted on the first mounting rack. The battery cell module is located in the battery cell cavity, and there is a first gap between the battery cell module and the first mounting rack.

[0008] Optionally, at opposite two side walls of the receiving cavity, there are first support members protruding towards the inside of the receiving cavity. The first mounting rack is supported by the first support members and is detachably connected to the first support members through first connectors.

[0009] Optionally, the number of the battery cell modules is multiple, and the multiple battery cell modules are spaced apart along the second direction;

[0010] The battery pack further includes a second mounting rack. The second mounting rack is detachably connected to the side wall of the battery cell cavity along the first direction. Among the multiple battery cell modules, one of the battery cell modules is mounted on the inner bottom surface of the installation box, and the other battery cell modules are respectively mounted on the second mounting rack;

[0011] At opposite side walls of the battery cell cavity, there are second support members protruding toward the interior of the battery cell cavity. The second mounting bracket is supported on the second support members and is detachably connected to the second support members through second connecting members.

[0012] Optionally, the second connecting members include rivet bolts and rivet nuts. The rivet nuts are provided on the inner bottom surface of the mounting box. The rod portion of the rivet bolt passes through the second mounting bracket and the second support member along the second direction and is threadedly connected to the rivet nut, so that the second mounting bracket and the second support member are detachably connected.

[0013] Optionally, the battery cell module includes a battery cell bracket and a plurality of battery cells. The plurality of battery cells are arranged in an array on the battery cell bracket. The battery cell brackets of the plurality of battery cell modules are respectively mounted on the second mounting bracket and the inner bottom surface of the mounting box;

[0014] A first avoidance notch for avoiding the rivet bolt is provided at the edge of the battery cell bracket, and the rivet bolt passes through the first avoidance notch.

[0015] Optionally, the battery cell module includes a battery cell bracket, a plurality of battery cells and an electrical connection assembly. The plurality of battery cells are electrically connected through the electrical connection assembly. The plurality of battery cells are arranged in an array on the battery cell bracket. The battery cell brackets of the plurality of battery cell modules are respectively mounted on the second mounting bracket and the inner bottom surface of the mounting box;

[0016] The battery pack further includes a jumper tab. The electrical connection assemblies of two adjacent battery cell modules are electrically connected through the jumper tab.

[0017] Optionally, the second mounting bracket is provided with a second avoidance notch for avoiding the jumper tab. A third avoidance notch for avoiding the jumper tab is provided at the edge of the battery cell bracket provided on the second mounting bracket. The jumper tab passes through the second avoidance notch and the third avoidance notch.

[0018] Optionally, the jumper tab includes a first jumper portion and a second jumper portion. A first electrical connection end of the first jumper portion and a fourth electrical connection end of the second jumper portion are respectively electrically connected to the electrical connection assemblies of two adjacent battery cell modules. A second electrical connection end of the first jumper portion and a third electrical connection end of the second jumper portion are detachably connected to realize electrical connection between the first jumper portion and the second jumper portion.

[0019] Optionally, the mounting box includes a box body and a box cover. The box body has a receiving groove. The box cover is detachably connected to the box body and seals the notch of the receiving groove, so that the box body and the box cover enclose the receiving cavity.

[0020] In the embodiments of the present application, the battery cell module and the electrical components are distributed along the height direction of the battery pack, reducing the dimensions of the battery pack in the length and width directions. When the battery pack is applied to a vehicle or an aircraft, the installation position of the battery pack is more flexible. It can be installed not only on the chassis of the vehicle and the aircraft, but also at other positions of the vehicle or the aircraft, such as the wing and the tail of the aircraft. Thus, it can be seen that the embodiments of the present application can solve the problem of the large length and width dimensions of the battery pack in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.

[0022] Figure 1 is an exploded view of the battery pack provided by the embodiment of the present application;

[0023] Figure 2 is a sectional view of the battery pack provided by the embodiment of the present application along the YZ plane;

[0024] Figure 3 is a schematic diagram of the external structure of the battery pack provided by the embodiment of the present application;

[0025] Figure 4 is a perspective view of the box body, the first mounting rack and the second mounting rack provided by the embodiment of the present application;

[0026] Figure 5 is a perspective view of the box body and the second mounting rack provided by the embodiment of the present application;

[0027] Figure 6 is a schematic diagram of the mating structure of the box body and the battery cell support mounted on the inner bottom surface of the mounting box provided by the embodiment of the present application;

[0028] Figure 7 is a schematic diagram of the mating structure of the box body and the mounting on the inner bottom surface of the mounting box from another angle provided by the embodiment of the present application;

[0029] Figure 8 is a schematic diagram of the mating structure of the battery cell support and the battery cell provided by the embodiment of the present application;

[0030] Figure 9 is an exploded view of the battery cell support and the battery cell provided by the embodiment of the present application;

[0031] Figure 10 is a top view of the battery cell support mounted on the inner bottom surface of the mounting box provided by the embodiment of the present application;

[0032] Figure 11 An exploded view of the battery cell support and the battery cells in multiple battery cell modules provided by an embodiment of the present application;

[0033] Figure 12 A top view of the battery cell support installed on the second mounting bracket provided by an embodiment of the present application;

[0034] Figure 13 A schematic structural diagram of multiple battery cell modules provided by an embodiment of the present application;

[0035] Figure 14 A schematic structural diagram of the jumper bar electrically connected to two adjacent battery cell modules provided by an embodiment of the present application;

[0036] Figure 15 An exploded view of multiple battery cell modules provided by an embodiment of the present application;

[0037] Figure 16 A top view of the battery cell module provided by an embodiment of the present application (the arrow direction indicates the current flow direction).

[0038] In Figures 1 - 16 :

[0039] 100, mounting box; 110, box body; 111, first support member; 112, second support member; 120, box cover; 130, electrical cavity; 140, battery cell cavity;

[0040] 200, battery cell module; 210, battery cell support; 211, first avoidance notch; 212, limiting groove; 213, third avoidance notch; 220, battery cell; 230, electrical connection row; 240, jumper bar; 241, first jumper portion; 2411, second electrical connection end; 242, second jumper portion; 2421, third electrical connection end; 250, heating film;

[0041] 300, electrical component;

[0042] 410, first mounting bracket; 420, second mounting bracket; 421, second avoidance notch;

[0043] 510, rivet bolt; 520, rivet nut; 530, first connecting member. Detailed implementation manners

[0044] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0045] As shown Figures 1 - 16 in the figure, an embodiment of the present application provides a battery pack, which can be applied to an electric vehicle and used as an electric vehicle battery pack, or can be applied to an aircraft and used as an aircraft battery pack. The battery pack provided by the embodiment of the present application includes an installation box 100, a battery cell module 200, and electrical components 300.

[0046] Among them, the installation box 100 has a receiving cavity. The battery cell module 200 and the electrical components 300 are both located in the receiving cavity and are both connected to the cavity wall of the receiving cavity. The battery cell module 200 and the electrical components 300 are distributed at intervals along the height direction of the installation box 100. The number of the electrical components 300 can be multiple. Optionally, the electrical components 300 can include high-voltage electrical components, for example, can include a high-voltage positive connector and a high-voltage negative connector, etc. Of course, the electrical components 300 can also include low-voltage electrical components, and the present application does not limit this.

[0047] It should be noted that the length, width, and height directions of the installation box 100 are respectively consistent with the length, width, and height directions of the battery pack, and the height direction of the battery pack is perpendicular to the length direction of the battery pack and perpendicular to the width direction of the battery pack.

[0048] In the prior art, the electrical components 300 and the battery cell module 200 of the battery pack are usually in the same plane space, that is, in the same height space. Therefore, the length and width dimensions of the battery pack are relatively large.

[0049] In the embodiment of the present application, the battery cell module 200 and the electrical components 300 are distributed along the height direction of the battery pack, reducing the dimensions of the battery pack in the length direction and the width direction. When the battery pack is applied to a vehicle or an aircraft, the installation position of the battery pack is more flexible. It can be installed not only on the chassis of the vehicle and the aircraft, but also at other positions of the vehicle or the aircraft, such as the wing and tail of the aircraft. Thus, it can be seen that the embodiment of the present application can solve the problem that the length and width dimensions of the battery pack in the prior art are relatively large.

[0050] In addition, the battery cell module 200 and the electrical components 300 are arranged in layers along the height direction, so that the battery cell module 200 and the electrical components 300 are in spaces at different heights, ensuring the safety performance of the battery pack while reducing the length and width values of the battery pack and reasonably utilizing the height space of the battery pack.

[0051] To facilitate the maintenance and protection of the battery cell module 200 and electrical components 300 inside the installation box 100, the installation box 100 may include a box body 110 and a box cover 120. The box body 110 may have a receiving groove, and the box cover 120 may be detachably connected to the box body 110 by means such as screw connection or snap connection, and seal the notch of the receiving groove, so that the box body 110 and the box cover 120 enclose a receiving cavity. Optionally, the installation box 100 may be in a cuboid structure. Of course, in other embodiments, the installation box 100 may also be of other shapes, and the present application does not limit this.

[0052] Optionally, the detachable connection between the box body 110 and the box cover 120 may be a detachable connection in which the box cover 120 can be completely removed from the box body 110, or a detachable connection in which the box cover 120 cannot be completely removed from the box body 110. For example, one end of the box cover 120 may be rotatably connected to the box body 110 through a rotating shaft, and the other end may be detachably connected to the box body 110 by means such as screw connection or snap connection.

[0053] In this case, when the battery cell module 200 or the electrical component 300 fails, the box cover 120 can be removed or opened, which is convenient for maintaining the battery cell module 200 and the electrical component 300 inside the installation box 100.

[0054] In a further technical solution, the electrical component 300 may be located in a region close to the box cover 120.

[0055] There are various methods for connecting the battery cell module 200 and the electrical component 300 to the wall of the receiving cavity. In an optional embodiment, the battery cell module 200 may be directly connected to the wall of the receiving cavity by means such as bonding or screw connection, and the electrical component 300 may be directly connected to the wall of the receiving cavity by means such as bonding or screw connection.

[0056] In another preferred embodiment, the battery pack may include a first mounting bracket 410. The first mounting bracket 410 may be connected to the side wall of the receiving cavity along the first direction X and divide the receiving cavity into an electrical cavity 130 and a battery cell cavity 140 along the second direction Z. The electrical component 300 is located in the electrical cavity 130 and may be mounted on the first mounting bracket 410 by means such as bolt connection, snap connection, bonding, etc., so as to mount the electrical component 300 on the side wall of the receiving cavity through the first mounting bracket 410.

[0057] In this case, it is convenient for the installation of a single electrical component 300 and also for the disassembly and assembly between multiple electrical components 300 and the installation box 100. For example, when the battery cell module 200 fails, removing the first mounting bracket 410 can achieve the removal of multiple electrical components 300, reducing the operation steps when maintaining the battery cell module 200.

[0058] The battery cell module 200 is located in the battery cell cavity 140, and there may be a first gap between the battery cell module 200 and the first mounting frame 410. The first gap enables the battery cell module 200 to better dissipate heat during operation, thereby improving the safety performance of the battery pack. The first gap can also adapt to the dimensional changes of the battery cell module 200 due to thermal expansion and contraction, thereby making the battery pack less likely to deform and extending the service life of the battery pack.

[0059] Please note that, please refer to Figure 4 The first direction X refers to the length of the installation box 100, and the second direction Z corresponds to the height of the installation box 100. The first mounting bracket 410 being connected to the sidewalls of the accommodating chamber along the first direction X means that the first mounting bracket 410 is connected to two opposing sidewalls of the installation box 100 extending along the length direction. Of course, in other embodiments, the first mounting bracket 410 may also be connected to two opposing sidewalls of the installation box 100 extending along the third direction Y (i.e., the width direction).

[0060] Optionally, the first mounting bracket 410 may be parallel to the bottom wall of the mounting cavity (ie, the inner bottom surface of the mounting box 100 ).

[0061] In an optional embodiment, the side wall of the first mounting bracket 410 can be directly snapped, bonded, or screwed to the side wall of the accommodating cavity.

[0062] In another optional embodiment, first support members 111 protruding toward the interior of the accommodating chamber may be provided on two opposing side walls of the accommodating chamber. The first mounting bracket 410 may be supported by the first support members 111 and detachably connected to the first support members 111 via first connectors 530, so that the first mounting bracket 410 can be mounted on the side wall of the accommodating chamber via the first support members 111. This structure facilitates assembly and disassembly of the first mounting bracket 410 and also increases the support area for the first mounting bracket 410 in the height direction, thereby improving the stability of the first mounting bracket 410.

[0063] Optionally, the first support member 111 may be a plate-like structure, one side wall of which may be connected to two opposing side walls of the accommodating cavity by welding, clamping, or bonding, and disposed perpendicularly to the side walls of the accommodating cavity. The two first support members 111 may be disposed on the side walls in the first direction X, or may be disposed on the side walls in the third direction Y. This application uses the example of two first support members 111 disposed on the side walls in the first direction X.

[0064] Optionally, the first support member includes a first part and a second part. The first part is in contact with the side wall of the accommodation cavity and can be fixed to the side wall of the accommodation cavity by means of welding, screw connection, bonding or the like. The second part protrudes toward the inside of the accommodation cavity from the first part. The edge of the first mounting bracket 410 is in contact with the first part and the second part, and is connected to the second part by a first connecting member 530, so that the first support member 111 supports the first mounting bracket 410.

[0065] Optionally, the first connecting member 530 may be a threaded fastener such as a bolt or a screw. Alternatively, the first connecting member 530 may also be a limiting protrusion protruding from the first support member 111 along the second direction Z. A limiting hole may be provided on the first mounting bracket 410, and the limiting protrusion may partially extend into the limiting hole, or completely extend into the limiting hole, or pass through the limiting hole, so that the first support member 111 and the first mounting bracket 410 are in limiting cooperation in a plane perpendicular to the second direction Z.

[0066] The number of the battery cell modules 200 may be one or more, for example, two.

[0067] When the number of the battery cell modules 200 is multiple, the multiple battery cell modules 200 may be spaced apart along the second direction Z, that is, spaced apart along the height direction. A second gap may be provided between two adjacent groups of battery cell modules 200. The second gap enables the battery cell modules 200 to dissipate heat better during operation, improving the safety performance of the battery pack. The second gap can also accommodate the dimensional changes of the battery cell modules 200 due to thermal expansion and contraction, making the battery pack not easily deformed and extending the service life of the battery pack.

[0068] The battery pack may include a second mounting bracket 420. The second mounting bracket 420 may be detachably connected to the side wall of the battery cell cavity 140 along the first direction X. The number of the second mounting brackets 420 is one less than the number of the battery cell modules 200. Among the multiple battery cell modules 200, one battery cell module 200 is installed on the inner bottom surface of the installation box 100, and the other battery cell modules 200 are respectively installed on the second mounting brackets 420, so as to install the battery cell modules 200 in the battery cell cavity 140 through the second mounting brackets 420. In this case, the supporting area for the battery cell modules 200 in the height direction can be increased, improving the installation stability of the battery cell modules 200.

[0069] In a further technical solution, second support members 112 protruding towards the interior of the battery cell cavity 140 may be provided at two opposite side walls of the battery cell cavity 140. The two second support members 112 may be respectively arranged at the side walls in the first direction X or at the side walls in the third direction Y. In this application, an example is given where the two second support members 112 are respectively arranged at the side walls in the first direction X. The second support member 112 includes a third part and a fourth part. The third part is attached to the side wall of the battery cell cavity 140 and may be fixed to the side wall of the battery cell cavity 140 by means of welding, screw connection, bonding, etc. The fourth part protrudes towards the interior of the battery cell cavity 140 from the third part. The second mounting bracket 420 may be supported on the third part and the fourth part of the second support member 112 and is detachably connected to the fourth part of the second support member 112 through a second connecting member, so that the second support member 112 supports the second mounting bracket 420.

[0070] This structure facilitates the installation of the second mounting bracket 420 more, can reduce the installation difficulty of the second mounting bracket 420, and can also increase the supporting area for the second mounting bracket 420 in the second direction Z, thereby improving the stability of the second mounting bracket 420. At the same time, the battery cell cavity 140 is divided into two along the second direction Z, which is convenient for installing two battery cell modules 200.

[0071] Of course, in other embodiments, the second support member 112 may be a plate-like structure. The plate-like structure is vertically arranged with the side wall of the battery cell cavity 140, and one side wall of the plate-like structure is attached to the side wall of the battery cell cavity 140 and is fixed to the side wall of the battery cell cavity 140 by means of welding, screw connection, clamping, bonding, etc.

[0072] Optionally, the second connecting member may be a screw or a bolt.

[0073] In the embodiment of this application, the second connecting member may include a blind rivet bolt 510 and a blind rivet nut 520. The blind rivet nut 520 may be fixedly arranged on the inner bottom surface of the installation box 100. The rod portion of the blind rivet bolt 510 passes through the second mounting bracket 420 and the second support member 112 along the second direction Z and is threadedly connected to the blind rivet nut 520, so that the second mounting bracket 420 is detachably connected to the second support member 112.

[0074] The battery cell module 200 includes a battery cell support 210 and a plurality of battery cells 220. The plurality of battery cells 220 are arranged in an array on the battery cell support 210. The battery cell supports 210 of the plurality of battery cell modules 200 are respectively installed on the second mounting bracket 420 and the inner bottom surface of the installation box 100. The edge of the battery cell support 210 may be attached to the side wall of the battery cell cavity 140, or there may be a safety gap between the edge of the battery cell support 210 and the side wall of the battery cell cavity 140.

[0075] In the above scheme, the second mounting frame 420 is installed on the second support member 112 through the cooperation of the rivet bolt 510 and the rivet nut 520, and is thus installed on the side wall of the battery cell cavity 140 through the second support member 112. In order to prevent the battery cell holder 210 from interfering with the rivet bolt 510 or the rivet nut 520, in an optional embodiment, the edge of the battery cell holder 210 can be a planar structure, and the entire edge avoids the rivet bolt 510 and the rivet nut 520.

[0076] In other optional embodiments, the edge of the cell holder 210 may have a curved surface structure. For example, the edge of the cell holder 210 may be provided with a first avoidance notch 211 for avoiding the rivet bolt 510. The rivet bolt 510 passes through the first avoidance notch 211, and the rivet nut 520 is located in the first avoidance notch 211 of the cell holder 210 installed on the inner bottom surface of the installation box 100. Optionally, the surface of the first avoidance notch 211 that forms the edge of the cell holder 210 may be an arc surface.

[0077] Under this structure, the battery cell holder 210 will not interfere with the installation of the rivet bolts 510 and the rivet nuts 520. Compared with the flat structure of the edge of the battery cell holder 210 and the structure in which the entire edge avoids the rivet bolts 510 and the rivet nuts 520, this structure can increase the area of the battery cell holder 210, thereby allowing the battery cell holder 210 to install a larger number of battery cells 220.

[0078] In order to install the battery cell 220 on the battery cell holder 210, the battery cell holder 210 can be provided with a limiting groove 212, and the bottom of the battery cell 220 can extend into the limiting groove 212 to limit the battery cell 220 through the limiting groove 212. An adhesive layer can be formed between the battery cell 220 and the groove wall of the limiting groove 212 by glue filling to fix the limiting groove 212 and the battery cell 220.

[0079] Furthermore, the battery cell holder 210 can be placed on the inner bottom surface of the installation box 100 or the second installation frame 420 for glue injection. In this way, while forming an adhesive layer between the battery cell 220 and the groove wall of the limiting groove 212, an adhesive layer can also be formed on the battery cell holder 210 and the corresponding inner bottom surface of the installation box 100 or the second installation frame 420, thereby realizing the assembly of the inner bottom surface of the installation box 100, the battery cell holder 210 and the battery cell 220, and realizing the assembly of the second installation frame 420, the battery cell holder 210 and the battery cell 220.

[0080] Of course, in other embodiments, the battery cell 220 and the battery cell holder 210, the battery cell holder 210 and the second mounting frame 420, and the battery cell holder 210 and the inner bottom surface of the mounting box 100 may also be connected by other connection methods, and this application does not limit this.

[0081] Optionally, the battery cell 220 can be a cylindrical battery cell, such as a 4695 battery cell, or a square battery cell. The present application does not limit the specific type of the battery cell 220.

[0082] The battery cell module 200 includes a plurality of battery cells 220. The plurality of battery cells 220 can be arranged in an array on the battery cell bracket 210. In order to realize the electrical connection between the plurality of battery cells 220, the battery cell module 200 further includes an electrical connection component, and the plurality of battery cells 220 can be electrically connected through the electrical connection component. The battery cell brackets 210 of the plurality of battery cell modules 200 are respectively installed on the inner bottom surface of the second mounting frame 420 and the mounting box 100.

[0083] Optionally, the electrical connection component can include a plurality of electrical connection bars 230 (bus bars). The electrical connection bars 230 are welded to the pole posts of the battery cells 220. As Figure 16 shown, in the same battery cell module 200, every two battery cells 220 can be connected in parallel through the electrical connection bar 230 to form a group, and the two battery cells 220 connected in parallel and the two battery cells 220 connected in parallel in the next group are connected in series. Of course, the electrical connection manner between the plurality of battery cells 220 in the battery cell module 200 is not limited to the above electrical connection manner, and the present application does not limit this.

[0084] In the case where the battery pack includes a plurality of battery cell modules 200, the battery pack can further include a jumper bar 240. The electrical connection components of two adjacent battery cell modules 200 can be electrically connected through the jumper bar 240 to realize the electrical connection between the plurality of battery cell modules 200. As Figure 13 shown, in order to facilitate the electrical connection between the battery pack and an external circuit, the positive and negative electrodes of the battery pack can be distributed on the same side of the battery pack.

[0085] Optionally, both the electrical connection bar 230 and the jumper bar 240 can be flexible copper bars.

[0086] Since there is a second mounting frame 420 between two adjacent battery cell modules 200, in order to prevent the second mounting frame 420 and the battery cell bracket 210 from interfering with the jumper bar 240, the second mounting frame 420 can be provided with a second avoidance notch 421 for avoiding the jumper bar 240, and the edge of the battery cell bracket 210 provided on the second mounting frame 420 can be provided with a third avoidance notch 213 for avoiding the jumper bar 240. The jumper bar 240 passes through the second avoidance notch 421 and the third avoidance notch 213 so that the jumper bar 240 can connect two adjacent battery cell modules 200 distributed along the second direction Z.

[0087] Specifically, the jumper bar 240 may include a first jumper portion 241 and a second jumper portion 242. The first electrical connection end of the first jumper portion 241 and the fourth electrical connection end of the second jumper portion 242 are respectively electrically connected to the electrical connection components of two adjacent battery cell modules 200. The second electrical connection end 2411 of the first jumper portion 241 and the third electrical connection end 2421 of the second jumper portion 242 may be detachably connected and electrically connected to achieve the electrical connection between the first jumper portion 241 and the second jumper portion 242.

[0088] The detachable connection between the first jumper portion 241 and the second jumper portion 242 can not only achieve the electrical connection between two adjacent battery cell modules 200, but also facilitate the disassembly between two adjacent battery cell modules 200, thus facilitating the maintenance of each battery cell module 200.

[0089] In a further technical solution, the second electrical connection end 2411 of the first jumper portion 241 and the third electrical connection end 2421 of the second jumper portion 242 may be electrically connected by contact.

[0090] The second electrical connection end 2411 of the first jumper portion 241 and the third electrical connection end 2421 of the second jumper portion 242 may also be connected to the adjacent battery cell bracket 210 by means of screws or snap connection, etc., so as to ensure the stable electrical connection between the second electrical connection end 2411 and the third electrical connection end 2421. It should be noted that when the second electrical connection end 2411 and the third electrical connection end 2421 are connected by screws, the second electrical connection end 2411 and the third electrical connection end 2421 may overlap on the surface of the battery cell bracket 210 facing the box cover 120, which is convenient for the disassembly and assembly of the screws.

[0091] The battery cell module 200 may further include a heating film 250. The heating film 250 may cover the electrical connection components of the battery cell module 200. The heating film 250 is used to adjust the temperature of the battery cell 220 so that the temperature of the battery cell 220 is maintained at the most suitable charging rate.

[0092] The basic principle of the present application has been described above in combination with specific embodiments. However, it should be noted that the advantages, advantages, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, advantages, effects, etc. are essential for each embodiment of the present application. In addition, the above-disclosed specific details are only for the purposes of illustration and easy understanding, rather than limitations, and the above details do not limit the present application to necessarily adopt the above specific details to implement.

[0093] The block diagrams of the devices, apparatuses, equipment, and systems involved in the present application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as "comprising", "including", "having", etc. are open-ended terms, meaning "including but not limited to", and can be used interchangeably with each other. The words "or" and "and" used herein refer to the phrase "and / or", and can be used interchangeably with it, unless the context clearly indicates otherwise. The phrase "such as" used herein refers to the phrase "such as but not limited to", and can be used interchangeably with it.

[0094] It should also be noted that in the devices, equipment, and methods of the present application, each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations shall be regarded as equivalent solutions of the present application.

[0095] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

[0096] It should be understood that the qualifiers "first", "second", "third", "fourth", "fifth", and "sixth" used in the description of the embodiments of the present application are only for more clearly elaborating the technical solutions and cannot be used to limit the protection scope of the present application.

[0097] The above description has been given for purposes of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions, and sub-combinations thereof.

Claims

1. A battery pack, characterized in that, It includes an installation box (100), a battery cell module (200), and electrical components (300), where: The installation box (100) has a receiving cavity. The battery cell module (200) and the electrical components (300) are both located in the receiving cavity and are both connected to the cavity wall of the receiving cavity. The battery cell module (200) and the electrical components (300) are spaced apart along the height direction of the installation box (100).

2. The battery pack according to claim 1, wherein, The battery pack further includes a first mounting bracket (410). The first mounting bracket (410) is connected to the side wall of the receiving cavity along a first direction (X) and divides the receiving cavity into an electrical cavity (130) and a battery cell cavity (140) along a second direction (Z). The electrical components (300) are located in the electrical cavity (130) and are mounted on the first mounting bracket (410). The battery cell module (200) is located in the battery cell cavity (140), and there is a first gap between the battery cell module (200) and the first mounting bracket (410).

3. The battery pack according to claim 2, characterized in that, At opposite side walls of the receiving cavity, there are first support members (111) protruding towards the inside of the receiving cavity. The first mounting bracket (410) is supported by the first support members (111) and is detachably connected to the first support members (111) through first connecting members (530).

4. The battery pack according to claim 2, wherein, The number of the battery cell modules (200) is multiple, and the multiple battery cell modules (200) are spaced apart along the second direction (Z); The battery pack further includes a second mounting bracket (420). The second mounting bracket (420) is detachably connected to the side wall of the battery cell cavity (140) along the first direction (X). Among the multiple battery cell modules (200), one of the battery cell modules (200) is mounted on the inner bottom surface of the installation box (100), and the other battery cell modules (200) are respectively mounted on the second mounting bracket (420); At opposite side walls of the battery cell cavity (140), there are second support members (112) protruding towards the inside of the battery cell cavity (140). The second mounting bracket (420) is supported by the second support members (112) and is detachably connected to the second support members (112) through second connecting members.

5. The battery pack according to claim 4, wherein The second connecting member includes a blind rivet bolt (510) and a blind rivet nut (520). The blind rivet nut (520) is provided on the inner bottom surface of the installation box (100). The rod portion of the blind rivet bolt (510) passes through the second mounting bracket (420) and the second support member (112) along the second direction (Z) and is threadedly connected to the blind rivet nut (520) to detachably connect the second mounting bracket (420) and the second support member (112).

6. The battery pack according to claim 5, characterized in that, The battery cell module (200) includes a battery cell bracket (210) and multiple battery cells (220). The multiple battery cells (220) are arranged in an array on the battery cell bracket (210). The battery cell brackets (210) of the multiple battery cell modules (200) are respectively mounted on the second mounting bracket (420) and the inner bottom surface of the installation box (100); The edge of the battery cell bracket (210) is provided with a first avoidance notch (211) for avoiding the riveting bolt (510), and the riveting bolt (510) passes through the first avoidance notch (211).

7. The battery pack according to claim 4 or 5, characterized in that, The battery cell module (200) includes a battery cell bracket (210), a plurality of battery cells (220) and an electrical connection component. The plurality of battery cells (220) are electrically connected through the electrical connection component, and the plurality of battery cells (220) are arranged in an array on the battery cell bracket (210). The battery cell brackets (210) of the plurality of battery cell modules (200) are respectively installed on the inner bottom surface of the second mounting bracket (420) and the mounting box (100); The battery pack further includes a jumper tab (240), and the electrical connection components of two adjacent battery cell modules (200) are electrically connected through the jumper tab (240).

8. The battery pack according to claim 7, wherein, The second mounting bracket (420) is provided with a second avoidance notch (421) for avoiding the jumper tab (240). The edge of the battery cell bracket (210) provided on the second mounting bracket (420) is provided with a third avoidance notch (213) for avoiding the jumper tab (240), and the jumper tab (240) passes through the second avoidance notch (421) and the third avoidance notch (213).

9. The battery pack according to claim 8, characterized in that, The jumper tab (240) includes a first jumper portion (241) and a second jumper portion (242). The first electrical connection end of the first jumper portion (241) and the fourth electrical connection end of the second jumper portion (242) are respectively electrically connected to the electrical connection components of two adjacent battery cell modules (200). The second electrical connection end (2411) of the first jumper portion (241) and the third electrical connection end (2421) of the second jumper portion (242) are detachably connected to realize the electrical connection between the first jumper portion (241) and the second jumper portion (242).

10. The battery pack according to claim 1, characterized in that, The mounting box (100) includes a box body (110) and a box cover (120). The box body (110) has a receiving groove. The box cover (120) is detachably connected to the box body (110) and seals the notch of the receiving groove so that the box body (110) and the box cover (120) enclose the receiving cavity.

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