Battery insulation assembly and battery

Abstract

The utility model belongs to the technical field of batteries, and particularly relates to a battery insulation assembly and a battery. The battery insulation assembly comprises a main body part, wherein the lower surface of the main body part faces a battery cell; the at least one wing plate is connected to one end, in the first direction, of the main body part, and the wing plate comprises a covering and pressing part and an avoiding part which are sequentially arranged in the first direction; wherein the wing plate is configured to be bent towards the lower surface of the main body part, so that the covering and pressing part covers and presses at least one battery cell tab; in the first direction, the part, exceeding the edge of the switching piece, of the battery cell tab is a suspended part, and the avoiding part is arranged opposite to the suspended part in the height direction. According to the utility model, the inverted insertion phenomenon of the battery cell tab can be prevented, the avoidance part of the wing plate can avoid the suspension part of the battery cell tab, the pressure on the suspension part of the battery cell tab can be reduced, the problem of uneven local stress of the battery cell tab can be effectively relieved, and the reliability of the battery cell tab is improved. And the battery performance is prevented from being influenced by bending deformation or tearing damage of the battery cell tab.

Description

Technical Field

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

[0002] With the rapid development of battery technology, lithium batteries have become one of the common battery types in the field of new energy. Among them, the battery cell is usually connected and fixed with the cell tab by using an adapter. During the battery preparation process, the cell tabs of different layers are prone to offset when the cell is wound; when the offset is large enough, part of the structure of some cell tabs will exceed the adapter, forming a suspended state. After the battery insulation component that prevents the tab from being inverted is buckled, the cell tab of the suspended part is not subjected to force on the side facing the adapter, forming a state of local uneven force, which can easily cause the cell tab to bend and deform, and even cause the cell tab to tear and break, increasing the difficulty of cell assembly, and increasing resistance, affecting battery performance. Utility Model Content

[0003] In view of this, in order to improve at least one of the above problems existing in the prior art, the utility model provides a battery insulation assembly and a battery.

[0004] The first technical solution of the utility model provides a battery insulation assembly, which is arranged on the side of the battery cover facing the battery cell; the battery insulation assembly includes: a main body, the lower surface of the main body faces the battery cell; at least one wing plate, connected to one end of the main body in the first direction, the wing plate includes a cover pressing portion and an avoidance portion arranged in sequence in the first direction; wherein the wing plate is configured to bend toward the lower surface of the main body so that the cover pressing portion covers and presses on at least one battery cell pole ear; in the first direction, the portion of the battery cell pole ear that exceeds the edge of the adapter sheet is a suspended portion, and the avoidance portion is arranged opposite to the suspended portion in the height direction.

[0005] In a feasible implementation, the direction perpendicular to the first direction in the horizontal plane is the second direction, the battery cell pole ear is protruding from the end of the battery cell and extends along the end of the battery cell to the second direction, the end of the battery cell pole ear away from the battery cell is used to be welded with the adapter sheet to form a welding portion, and the covering portion is suitable for covering the welding portion; the end of the wing plate connected to the main body is a bending portion, and in the first direction, the avoidance portion is located between the covering portion and the bending portion.

[0006] In a feasible implementation, in the first direction, the size of the suspended portion of the cell tab is less than the length of the avoidance portion and is less than half of the length of the wing plate.

[0007] In a feasible implementation, in the first direction, the length dimension of the covering portion is not less than 1 / 4 of the dimension of a single battery cell tab.

[0008] In a feasible implementation, the avoidance portion includes a avoidance gap, at least one edge of the wing plate in the second direction is recessed inward to form the avoidance gap, and the avoidance gap is arranged opposite to the suspended portion of the battery cell tab.

[0009] In a feasible implementation, two edges of the wing plate in the second direction are provided with avoidance gaps.

[0010] In a feasible implementation, the avoidance portion further includes a soft filling structure, which is disposed in the avoidance gap and connected to the wing plate.

[0011] In a feasible implementation, the thickness of the avoidance portion is smaller than the thickness of other areas of the wing plate, and part of the surface of the wing plate facing the main body is recessed inward to form a groove structure, and an avoidance gap is formed between the inner bottom wall of the groove structure and the suspended portion.

[0012] In a feasible implementation, in the first direction, two ends of the main body are respectively provided with a wing plate.

[0013] The technical solution of the second aspect of the utility model provides a battery, including: a battery insulation assembly as described in any one of the first aspects above, wherein the wing plate of the battery insulation assembly is bent toward the lower surface of the main body; an adapter plate, which is arranged between the wing plate and the main body; at least one battery cell, the battery cell is provided with a battery cell ear, the battery cell ear is arranged between the adapter plate and the wing plate, and is welded to the adapter plate; wherein the covering portion of the wing plate covers the battery cell ear, and the avoiding portion of the wing plate is arranged relative to the suspended portion of the battery cell ear.

[0014] The technical solution of the third aspect of the utility model provides an electrical device, comprising the battery in any one of the above-mentioned second aspects.

[0015] The beneficial effects of the above technical solution of the utility model are embodied in:

[0016] The structure of the battery insulation component and the assembly method with the battery cell have been improved, which can not only prevent the battery cell pole ear from being inverted, but also when a local area of ​​the battery cell pole ear exceeds the adapter to form a suspended part, the suspended part can be avoided by the avoidance part of the wing plate, which can reduce the pressure on the suspended part of the battery cell pole ear, and can effectively alleviate the problem of local uneven force on the battery cell pole ear, and prevent the battery performance from being affected by bending, deformation or tearing of the battery cell pole ear. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The figure shows a schematic diagram of a battery insulation assembly and a battery cell provided by an embodiment of the present invention when assembled (the state before the wing plate is bent).

[0018] Figure 2The figure shows a schematic diagram of a battery insulation assembly and a battery cell provided by an embodiment of the utility model when assembled (the state after the wing plate is bent).

[0019] Figure 3 Shown is a partial schematic diagram of a battery insulation assembly and a battery cell provided by an embodiment of the utility model during assembly (the state before the wing plate is bent).

[0020] Figure 4 The figure shows a schematic diagram of another battery insulation assembly and a battery cell provided by an embodiment of the utility model when assembled (the state before the wing plate is bent).

[0021] Figure 5 The figure shows a schematic diagram of another battery insulation assembly and a battery cell provided by an embodiment of the utility model when assembled (the state before the wing plate is bent).

[0022] Figure 6 The figure shows a schematic diagram of another battery insulation assembly and a battery cell provided by an embodiment of the present invention when assembled (the state after the wing plate is bent).

[0023] Figure 7 The figure shows a schematic diagram of another battery insulation assembly and a battery cell provided by an embodiment of the present invention when assembled (the state after the wing plate is bent).

[0024] Figure 8 The figure shows a side view of another battery insulation assembly and a battery cell provided by an embodiment of the utility model when assembled (the state after the wing plate is bent).

[0025] Fig. 9 The figure shows a schematic block diagram of an electric device provided by an embodiment of the utility model.

[0026] Description of reference numerals:

[0027] 100 battery insulation components;

[0028] 1 main body; 2 wing plate, 21 covering portion, 22 avoidance portion, 221 avoidance gap, 222 soft filling structure, 223 groove structure, 23 bending portion;

[0029] 300 battery, 310 battery cell, 311 battery cell tab, 312 suspended portion, 313 welding portion, 320 adapter;

[0030] 500 electrical equipment. DETAILED DESCRIPTION

[0031] In the description of the application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise clearly and specifically limited. In the embodiment of the present application, all directional indications (such as up, down, left, right, front, back, top, bottom ...) are only used to explain the relative position relationship, motion conditions, etc. between the components under a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indication also changes accordingly. In addition, the terms "including" and "having" and any of their deformations are intended to cover non-exclusive inclusions. For example, the process, method, system, product or equipment comprising a series of steps or units are not limited to the steps or units listed, but optionally also include the steps or units not listed, or optionally also include other steps or units inherent to these processes, methods, products or equipment.

[0032] In addition, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0033] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0034] Application Overview

[0035] In recent years, with the rapid development of battery technology, power batteries have been widely used in many fields. In the existing production and assembly process, during the winding process of the battery cell, the battery cell tabs of different layers will have a small offset. When the offset is large, the total width of the tab will increase, resulting in the battery cell tab partially exceeding the adapter during the assembly of the battery cell. When the lower plastic cover is buckled, the part of the battery cell tab that exceeds the adapter is suspended. In the existing battery structure, since the lower part of the suspended part of the battery cell tab is not subjected to force, under the long-term pressure from above, the battery cell tab is prone to bending and increasing resistance. At the same time, the offset suspended part is also at risk of tearing and damage during the assembly and merging process, which increases the difficulty of battery cell assembly.

[0036] Some embodiments of the battery insulation assembly, battery and electrical equipment in the technical solution of the utility model are provided below.

[0037] In an embodiment of the first aspect of the present utility model, a battery insulation assembly 100 is provided, such as Figure 1 and Figure 2 As shown, the battery insulation assembly 100 is arranged on the side of the battery cover plate facing the battery cell 310, and includes a main body 1 and at least one wing plate 2. The lower surface of the main body 1 faces the battery cell 310, and the wing plate 2 is connected to one end of the main body 1 in the first direction, and the wing plate 2 includes a cover pressing portion 21 and an avoidance portion 22 arranged in sequence in the first direction. When the battery insulation assembly 100 is assembled with the battery cell 310, the wing plate 2 can be bent toward the lower surface of the main body 1 so that the cover pressing portion 21 is pressed on at least one battery cell tab 311; wherein, in the first direction, the portion of the battery cell tab 311 that exceeds the edge of the adapter 320 is the suspended portion 312, and after the battery insulation assembly 100 is assembled with the battery cell 310, in the height direction, the avoidance portion 22 of the wing plate 2 is arranged opposite to the suspended portion 312 of the battery cell tab 311.

[0038] It is understandable that in the battery production process, multiple cell tabs 311 are usually stacked and arranged, and each level of the cell tabs 311 inevitably has a small offset, and after multiple layers are stacked, it is easy to increase the offset of the tab as a whole, thereby forming a suspended portion 312. Figure 2 In the example, since there is no support below the suspended portion 312, the bottom of the suspended portion 312 is not subjected to force. In the existing process, the lower plastic cover plate for insulation is pressed on the battery cell tab 311. The suspended portion 312 is subjected to pressure from above for a long time, which is prone to bending and deformation, causing increased resistance. In addition, the suspended portion 312 is at risk of tearing and damage during battery cell assembly.

[0039] The battery insulation assembly 100 in this embodiment has been improved in structure and assembly method with the battery cell, which can not only prevent the battery cell tab 311 from being inverted, but also when a local area of ​​the battery cell tab 311 exceeds the adapter 320 to form a suspended portion 312, the suspended portion 312 can be avoided by the avoidance portion 22 of the wing plate 2, which can greatly reduce the pressure on the suspended portion 312 of the battery cell tab 311, and can effectively alleviate the problem of uneven local force on the battery cell tab 311, preventing the battery tab 311 from affecting battery performance due to bending, deformation or tearing.

[0040] It should be noted that the shape of the avoidance portion 22 is not limited to Figure 1 The rectangle shown in the figure can be set according to specific assembly needs and size requirements; the position and number of the avoidance portion 22 can be set according to the specific positions of the adapter plate 320 and the suspended portion 312. Among them, the suspended portion 312 is not limited to Figure 1The portion of the middle cell tab 311 that exceeds the left edge of the adapter plate 320 may also be the portion of the cell tab 311 that exceeds the edge of the adapter plate 320 in other directions. The position of the avoidance portion 22 corresponds to the suspended portion 312 .

[0041] Furthermore, if Figure 1 , Figure 2 As shown, in the horizontal plane, the second direction is perpendicular to the first direction. When assembled with the battery cell 310, in the second direction, the battery cell tab 311 is protruded at the end of the battery cell 310, and the battery cell tab 311 extends along the second direction and protrudes outward relative to the battery cell 310; the end of the battery cell tab 311 away from the battery cell 310 is used to weld with the adapter 320 to form a welding portion 313. After the wing plate 2 is bent, the covering portion 21 of the wing plate 2 covers and presses on the welding portion 313. Among them, as Figure 2 In the example, one end of the wing plate 2 connected to the main body 1 is a bending portion 23. In the first direction, the avoidance portion 22 is located between the covering portion 21 and the bending portion 23. When the covering portion 21 is pressed on the welding portion 313, the avoidance portion 22 covers the suspended portion 312 of the battery cell tab 311.

[0042] Furthermore, if Figure 3 As shown, in the first direction, the length dimension of the wing plate 2 is L, the length dimension of the covering portion 21 is a, the length dimension of the avoiding portion 22 is b, and the dimension of the suspended portion 312 of the battery cell tab 311 is c.

[0043] In a specific implementation, Figure 3 In the example in the figure, in the first direction, the dimension c of the suspended portion 312 is less than the length dimension b of the avoidance portion 22 and less than 0.5×the length dimension L of the wing plate 2. Through the above arrangement, on the one hand, it can be ensured that the avoidance portion 22 can completely cover the suspended portion 312 in the first direction to avoid pressure on the suspended portion 312 due to partial coverage, and on the other hand, the length dimension of the avoidance portion 22 can be limited within a certain ratio to reserve a sufficient dimension for the covering portion 21 to meet the needs of the covering and pressing assembly with the welding portion 313.

[0044] In another specific implementation, Figure 3 In the example, in the first direction, the length dimension a of the pressing portion 21 is greater than 0.25×the dimension d of a single cell tab 311. Through the above configuration, the minimum dimension of the pressing portion 21 in the first direction is defined to ensure that the pressing portion 21 has enough area to press the welding portion 313 to meet the assembly requirements.

[0045] Furthermore, if Figures 1 to 3As shown, the avoidance portion 22 of the wing plate 2 includes a avoidance notch 221. Specifically, at least one edge of the wing plate 2 in the second direction is recessed inward to form the avoidance notch 221. When the wing plate 2 is bent, the avoidance notch 221 is arranged opposite to the suspended portion 312 of the battery cell tab 311 to avoid the suspended portion 312 and prevent the wing plate 2 from contacting the suspended portion 312 and exerting pressure on the suspended portion 312. According to the specific assembly requirements of the battery, the shape of the avoidance notch 221 is not limited to Figure 2 The rectangle shown in the figure may also be a semicircle, a trapezoid, a triangle or other shapes that match the suspended portion 312.

[0046] Furthermore, if Figure 4 As shown, preferably, both edges of the wing plate 2 in the second direction are provided with avoidance notches 221. When assembling the battery cells 310, the battery cells 310 can be arranged on both sides of the wing plate 2 in the second direction, and the suspended portions 312 formed by the battery cell tabs 311 on both sides are respectively arranged opposite to the avoidance notches 221 at the two edges of the wing plate 2 in the second direction, thereby further increasing the number of battery cells that can be assembled to enhance the power supply performance of the battery.

[0047] Further, such as Figure 5 and Figure 6 As shown, in a specific implementation, the avoidance portion 22 also includes a soft filling structure 222. The soft filling structure 222 is arranged in the avoidance notch 221 and is connected to the wing plate 2, so that the soft filling structure 222 is connected to the wing plate 2 as a whole, so that after the wing plate 2 is bent, the soft filling structure 222 contacts the suspended portion 312 of the battery cell tab 311. Since the soft filling structure 222 is light and can be flexibly deformed, when it contacts the suspended portion 312, the pressure on the suspended portion 312 is extremely small and within the range of assembly requirements, and will not cause the suspended portion 312 to bend, deform, or tear and break. If necessary, it can also play a certain buffering role on the suspended portion 312.

[0048] Preferably, if Figure 5 and Figure 6 In the example, the soft filling structure 222 completely covers the avoidance gap 221. Of course, the soft filling structure 222 can also be set to only cover part of the avoidance gap 221 according to specific assembly needs. Among them, the soft filling structure 222 can be connected to the wing plate 2 by hot melting.

[0049] In a further embodiment of the present invention, Figure 7 and Figure 8As shown, the avoidance portion 22 is located on the side of the wing plate 2 facing the battery cell tab 311, and the thickness of the avoidance portion 22 is less than the thickness of other areas on the wing plate 2. Part of the surface of the wing plate 2 facing the main body 1 is recessed inward to form a groove structure 223, which serves as the avoidance portion 22, and a avoidance gap is formed between the inner bottom wall of the groove structure 223 and the suspended portion 312, so that the avoidance portion 22 and the suspended portion 312 are not in direct contact, thereby preventing pressure from being generated on the suspended portion 312 and achieving an avoidance effect. Among them, the thickness of the avoidance portion 22 can be set according to specific assembly requirements, so that the formed avoidance gap meets the avoidance requirements for the suspended portion 312.

[0050] In this embodiment, another implementation method of the avoidance portion 22 is provided, by providing a groove structure 223 on the side wall surface of the wing plate 2 as the avoidance portion 22, so that the avoidance portion 22 can cover the suspended portion 312 in the height direction but not contact the suspended portion 312, which can not only avoid the suspended portion 312, but also provide a certain protection for the suspended portion 312 when necessary.

[0051] Further, according to specific assembly requirements, the avoidance portion 22 in this embodiment may also be provided with the following Figure 5 and Figure 6 The soft filling structure 222 shown in the figure is in contact with the suspended portion 312 through the soft filling structure 222. The soft filling structure 222 is lightweight and can be deformed, so that the pressure on the suspended portion 312 is limited to a range that meets the assembly requirements, and will not cause the suspended portion 312 to bend, deform or tear. It can also play a certain buffering role for the suspended portion 312 when necessary.

[0052] In a further embodiment of the present invention, Figure 1 and Figure 2 As shown, the battery insulation assembly 100 includes two wing plates 2. In the first direction, a wing plate 2 is respectively provided at both ends of the main body 1. When assembled with the battery cell 310, the wing plates 2 at both ends of the main body 1 can be bent toward the lower surface of the main body 1 to respectively cooperate with the corresponding battery cell tabs 311. It can be understood that Figure 1 In the example in FIG. 1 , a common battery cell is usually provided with two battery cell tabs 311, which are respectively connected to different adapters 320. The two wing plates 2 of the battery insulation assembly 100 in this embodiment can correspond to the two battery cell tabs 311 one by one, and only one battery insulation assembly 100 is used to complete the cooperation with the battery cell tabs 311, without the need to separately set a battery insulation assembly 100 for each battery cell tab 311, which can not only improve the assembly efficiency, but also help save materials.

[0053] Preferably, if Figure 1In the example, the two wing plates 2 at both ends of the main body 1 can adopt the same structural design and are symmetrically connected to the two ends of the main body 1 in the first direction, which is conducive to simplifying the processing, and the positions of the wing plates 2 at both ends can be interchanged, with strong versatility. There is no need to distinguish the direction when assembling with the battery cell 310, and both can be adapted to the battery cell tabs 311, which is conducive to further simplifying the assembly operation process and improving assembly efficiency.

[0054] Furthermore, if Figure 4 As shown, each wing plate 2 has two edges in the second direction each with an avoidance notch 221. When assembling the battery cell 310, in the second direction, multiple battery cells 310 are arranged on both sides of the main body 1, and each battery cell 310 is provided with two battery cell tabs 311. Among the multiple battery cells 310 located on the same side, the battery cell tabs 311 with the same polarity are stacked in the height direction and welded to the same adapter sheet 320; Figure 4 After the wing plate 2 on the left side is bent, it cooperates with the battery cell pole ears 311 close to the left end in the two groups of battery cells 310 on both sides of the main body 1. After the wing plate 2 on the right side is bent, it cooperates with the battery cell pole ears 311 close to the right end in the two groups of battery cells 310 on both sides of the main body 1. The suspended parts 312 formed by the battery cell pole ears 311 opposite to each other on both sides are arranged opposite to the avoidance notches 221 at the two edges of the same wing plate 2 in the second direction, and the covering parts 21 on the same wing plate 2 simultaneously cover the welding parts 313 of the battery cell pole ears 311 opposite to each other on both sides.

[0055] In an embodiment of the second aspect of the present utility model, a battery 300 is provided, such as Figures 1 to 8 As shown, the battery 300 includes the battery insulation assembly 100, the adapter sheet 320 and the battery cell 310 in any embodiment of the first aspect described above. The wing plate 2 of the battery insulation assembly 100 is bent toward the lower surface of the main body 1, and the adapter sheet 320 is arranged between the wing plate 2 and the main body 1; the number of the battery cell 310 is at least one, and a battery cell tab 311 is arranged at one end of the battery cell 310 facing the adapter sheet 320, and the battery cell tab 311 is placed between the adapter sheet 320 and the wing plate 2, and the battery cell tab 311 is welded and fixed to the adapter sheet 320. The battery cell tab 311 and the adapter sheet 320 are coated by the battery insulation assembly 100 to play an insulating role.

[0056] Among them, the covering portion 21 of the wing plate 2 covers the battery cell ear 311, and the avoiding portion 22 of the wing plate 2 is arranged relatively to the suspended portion 312 of the battery cell ear 311, so that the wing plate 2 does not directly contact the suspended portion 312, thereby achieving an avoiding effect, thereby effectively alleviating the problem of uneven force on the suspended portion 312, thereby preventing the suspended portion 312 from bending and deforming to affect the battery performance, and can greatly reduce the risk of tearing and damage of the suspended portion 312 during assembly, which is beneficial to improving the efficiency of battery assembly operations and the quality of battery products.

[0057] It should be noted that the battery insulation assembly 100 in this embodiment can adopt the specific form of any embodiment of the first aspect mentioned above according to specific needs to meet assembly requirements.

[0058] Preferably, if Figure 1 In the example, the battery 300 includes a plurality of battery cells 310 , in which a plurality of battery cell tabs 311 with the same polarity are stacked and fixed to the same adapter sheet 320 by welding.

[0059] Furthermore, if Figure 1 and Figure 2 As shown, each battery cell 310 is provided with two battery cell tabs 311 at one end facing the main body 1, and accordingly, the number of adapters 320 is also two, and the two battery cell tabs 311 of the same battery cell 310 correspond to and are welded and fixed to one of the adapters 320. A wing plate 2 is provided at each end of the main body 1 in the first direction, and each wing plate 2 is arranged opposite to a corresponding adapter 320, and the corresponding adapter 320 and battery cell tab 311 are covered and pressed by the covering portion 21, and the avoiding portion 22 forms an avoiding match with the corresponding suspended portion 312.

[0060] Specifically, Figure 3 In the example, in the first direction, the dimension c of the suspended portion 312 is less than the length dimension b of the avoidance portion 22 and less than 0.5×the length dimension L of the wing plate 2, and at the same time, the length dimension a of the cover pressing portion 21 is greater than 0.25×the dimension d of a single cell tab 311. Through the above-mentioned dimension setting, it is possible to ensure that the avoidance portion 22 can completely cover the suspended portion 312 in the first direction to avoid pressure on the suspended portion 312 due to partial coverage, and to reserve sufficient dimensions for the cover pressing portion 21 to meet the needs of the cover pressing assembly of the cover pressing portion 21 and the welding portion 313.

[0061] It should be noted that the battery 300 in this embodiment can be used as a battery cell, or as a battery module or a battery pack according to different specific assembly methods.

[0062] In addition, the battery 300 in this embodiment also has all the beneficial effects of the battery insulation assembly 100 in any embodiment of the first aspect mentioned above, which will not be repeated here.

[0063] In practical applications, the structural form of the adapter can also be improved according to specific circumstances while meeting assembly requirements. For example, the area of ​​the area where the suspended portion may appear after welding the adapter to the battery cell tab is increased, that is, the contact area between the adapter and the battery cell tab is increased to reduce the area of ​​the suspended portion or reduce the possibility of the suspended portion, so as to further reduce the bending deformation or tearing damage of the battery cell tab due to suspension, which is conducive to further improving battery performance. The above improvements to the adapter are more effective when used in conjunction with the battery insulation assembly of the utility model.

[0064] In the embodiment of the third aspect of the present utility model, an electric device 500 is also provided, such as Fig. 9 As shown, the electric device 500 includes the battery 300 in any embodiment of the second aspect, and the battery 300 serves as a power supply device to supply power to the electric device 500. The electric device 500 includes but is not limited to electric vehicles.

[0065] In addition, the electrical equipment 500 in this embodiment also has all the beneficial effects of the battery 300 in any embodiment of the second aspect mentioned above, which will not be repeated here.

[0066] The basic principle of the present invention is described above in conjunction with specific embodiments. However, it should be pointed out that the advantages, strengths, effects, etc. mentioned in the present invention are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present invention. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not limitation, and the above details do not limit the present invention to being implemented by adopting the above specific details.

[0067] The block diagrams of the devices, apparatuses, equipment and systems involved in the present utility model are only 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 will be appreciated by those skilled in the art, these devices, apparatuses, equipment and systems can be connected, arranged and configured in any manner. Words such as "including", "comprising", "having" and the like are open words, referring to "including but not limited to" and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them unless the context clearly indicates otherwise. The words "such as" used here refer to the phrase "such as but not limited to" and can be used interchangeably with them. It should also be noted that in the apparatus and equipment of the present utility model, each component can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present utility model.

[0068] The above description has been given for the purpose 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 some variations, modifications, changes, additions and sub-combinations thereof. The above description of the disclosed aspects is provided to enable any technician in the field to make or use the utility model. Various modifications to these aspects are very obvious 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 utility model. Therefore, the utility model is not intended to be limited to the aspects shown herein, but in accordance with the widest range consistent with the principles and novel features of this utility model.

[0069] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery insulation assembly, arranged on a side of a battery cover plate facing a battery cell (310), characterized in that: The battery insulation assembly (100) comprises: A main body (1), the lower surface of the main body (1) facing the battery core (310); At least one wing plate (2) connected to one end of the main body (1) in the first direction, the wing plate (2) comprising a covering portion (21) and an avoiding portion (22) arranged in sequence in the first direction; The wing plate (2) is configured to be bent toward the lower surface of the main body (1) so that the covering portion (21) covers and presses on at least one battery cell tab (311); In the first direction, the portion of the battery cell tab (311) that exceeds the edge of the adapter sheet (320) is a suspended portion (312), and the avoidance portion (22) is arranged opposite to the suspended portion (312) in the height direction.

2. The battery insulation assembly according to claim 1, characterized in that: The direction perpendicular to the first direction in the horizontal plane is a second direction, the battery cell tab (311) is protruding from the end of the battery cell (310) and extends along the end of the battery cell (310) toward the second direction, one end of the battery cell tab (311) away from the battery cell (310) is used to be welded with the adapter sheet (320) to form a welding portion (313), and the covering portion (21) is suitable for covering and pressing the welding portion (313); One end of the wing plate (2) connected to the main body (1) is a bent portion (23), and in the first direction, the avoidance portion (22) is located between the covering portion (21) and the bent portion (23).

3. The battery insulation assembly according to claim 2, characterized in that: In the first direction, the size of the suspended portion (312) of the battery cell tab (311) is less than the length of the avoidance portion (22) and less than half of the length of the wing plate (2).

4. The battery insulation assembly according to claim 2, characterized in that: In the first direction, the length dimension of the covering portion (21) is not less than 1 / 4 of the dimension of a single battery cell tab (311).

5. The battery insulation assembly according to claim 2, characterized in that: The avoidance portion (22) comprises an avoidance notch (221); at least one edge of the wing plate (2) in the second direction is recessed inwardly to form the avoidance notch (221); and the avoidance notch (221) is arranged opposite to the suspended portion (312) of the battery cell tab (311).

6. The battery insulation assembly according to claim 5, characterized in that: The two edges of the wing plate (2) in the second direction are both provided with the avoidance notch (221).

7. The battery insulation assembly according to claim 5, characterized in that: The avoidance portion (22) further comprises a soft filling structure (222), wherein the soft filling structure (222) is arranged in the avoidance gap (221) and is connected to the wing plate (2).

8. The battery insulation assembly according to claim 2, characterized in that: The thickness of the avoidance portion (22) is smaller than the thickness of other areas of the wing plate (2); a portion of the surface of the wing plate (2) is recessed inward toward the main body (1) to form a groove structure (223); and an avoidance gap is formed between the inner bottom wall of the groove structure (223) and the suspended portion (312).

9. The battery insulation assembly according to any one of claims 1 to 8, characterized in that: In the first direction, one wing plate (2) is provided at each end of the main body (1).

10. A battery, characterized in that: include: The battery insulation assembly according to any one of claims 1 to 9, wherein the wing plate (2) of the battery insulation assembly (100) is bent toward the lower surface of the main body (1); An adapter plate (320) is provided between the wing plate (2) and the main body (1); At least one battery cell (310), the battery cell (310) being provided with a battery cell tab (311), the battery cell tab (311) being arranged between the adapter sheet (320) and the wing plate (2), and being welded to the adapter sheet (320); The covering portion (21) of the wing plate (2) covers and presses the battery cell tab (311), and the avoiding portion (22) of the wing plate (2) is arranged opposite to the suspended portion (312) of the battery cell tab (311).

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