Spacer assembly and battery

Abstract

A spacer assembly (300) and a battery (400). The spacer assembly (300) comprises a first side spacer (1) provided with a first assembly portion (11), and a second side spacer (2) arranged opposite the first side spacer (1), wherein the second side spacer (2) is provided with a second assembly portion (21), the first assembly portion (11) and the second assembly portion (21) being connected in a detachable manner; a gap is provided between the first side spacer (1) and the second side spacer (2), the gap being configured to accommodate tabs (100) of the battery (400); and a spacing is provided between the first assembly portion (11) and each end portion of the first side spacer (1), and a spacing is provided between the second assembly portion (21) and each end portion of the second side spacer (2).

Description

Spacer assembly and battery

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on July 31, 2023, with application number 202322046195.0 and application name “Spacer Assembly and Battery”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of battery manufacturing, and in particular to a spacer assembly and a battery. Background Art

[0003] At present, in the field of battery manufacturing and assembly, in order to facilitate the assembly of the battery tabs and prevent the tabs from being scattered or squeezed due to vibration during the use of the battery, two side spacers are usually set to clamp the tabs to ensure the working state of the tabs and avoid the risk of short circuit caused by contact between the positive and negative poles.

[0004] However, for batteries with longer lengths, such as blade batteries, as the length of the side spacers increases, the clamping force of the side spacers on the tabs will decrease, making it difficult to fully clamp and fix the tabs, and the working condition of the tabs cannot be guaranteed.

[0005] Summary of the Invention

[0006] The purpose of this application is to provide a spacer assembly and a battery to solve the technical problem in the prior art that it is difficult to ensure the clamping effect of the side spacer on the tab.

[0007] To achieve the purpose of this application, this application provides the following technical solutions:

[0008] In a first aspect, the present application provides a spacer assembly, comprising: a first side spacer, provided with a first assembly portion; a second side spacer, arranged opposite to the first side spacer, the second side spacer being provided with a second assembly portion, the first assembly portion and the second assembly portion being detachably connected, and a gap being provided between the first side spacer and the second side spacer, the gap being used to accommodate the battery tab; wherein the first assembly portion and each end portion of the first side spacer have a gap, and the second assembly portion and each end portion of the second side spacer have a gap.

[0009] By arranging a gap between the first assembly portion and each end portion of the first side spacer, and a gap between the second assembly portion and each end portion of the second side spacer, the first assembly portion and the second assembly portion are close to the middle area of ​​the first side spacer and the second side spacer, which is beneficial to strengthening the connection strength of the middle area between the first side spacer and the second side spacer, reducing the possibility and amount of deformation in the middle area, ensuring the clamping strength of the middle area of ​​the first side spacer and the second side spacer on the pole ear, so that the pole ear is firmly constrained in the gap, avoiding squeezing the pole core and causing a short circuit.

[0010] In one possible implementation, the number of the first assembly portion and the number of the second assembly portion are both multiple, the multiple first assembly portions are spaced apart on the first side spacer, the multiple second assembly portions are spaced apart on the second side spacer, the maximum distance between two adjacent first assembly portions is a first distance A1, the maximum distance between two adjacent second assembly portions is a second distance A2, the length of the tab along the length direction of the first side spacer is the tab length L, and satisfies: L <A1<R; L<A2<R;

[0011] Wherein, R is a preset length, and the preset length R satisfies: 100mm≤R≤150mm.

[0012] By setting the first distance A1 and the second distance A2 to be greater than the tab length L, it is ensured that the positions of the first assembly portion 11 and the second assembly portion will not interfere with the position of the tab, making it convenient for the middle area of ​​the first side spacer and the second side spacer to accommodate the tab.

[0013] In one possible implementation, the minimum distance between the first assembly portion and the end of the first side spacer is a third distance A3, and the minimum distance between the second assembly portion and the end of the second side spacer is a fourth distance A4, satisfying:

[0014] By setting the third distance A3 and the fourth distance A4 to satisfy the above relationship, it is beneficial to simultaneously ensure the connection strength of the two end areas and the middle area of ​​the first side spacer and the second side spacer, so that the first side spacer and the second side spacer are not only reliably connected, but also can firmly clamp and fix the battery tabs.

[0015] In one possible implementation, the following conditions are met:

[0016] The number of the first fitting parts and the number of the second fitting parts are both at least three.

[0017] In this embodiment, when the third distance A3 and the fourth distance A4 are both greater than half the length of the tab, by setting the number of the first assembly parts 11 and the second assembly parts 21 to be at least three, it is beneficial to strengthen the connection strength of the first side spacer 1 and the second side spacer 2, and firmly clamp and fix the tab 100 of the battery along the length direction of the first side spacer 1 and the second side spacer 2.

[0018] In one possible implementation, the number of the first assembly parts and the second assembly parts are both even numbers, and the multiple first assembly parts are distributed at intervals in the length direction of the first side spacer and are symmetrical with respect to the perpendicular bisector of the first side spacer; the multiple second assembly parts are distributed at intervals in the length direction of the second side spacer and are symmetrical with respect to the perpendicular bisector of the second side spacer.

[0019] In this embodiment, by arranging the first assembly portion and the second assembly portion to be symmetrical, the connection between the first side spacer and the second side spacer in the length direction is more symmetrical and uniform, thereby improving the connection reliability of the first side spacer and the second side spacer.

[0020] In one possible embodiment, the spacer assembly also includes a top spacer, which is located on the same side of the first side spacer and the second side spacer, and the top spacer is provided with a third assembly part, which is detachably connected to the first side spacer and / or the second side spacer.

[0021] By setting a top spacer, the pole ear can be effectively constrained in the space formed by the top spacer, the first side spacer and the second side spacer, preventing the pole ear from squeezing the pole core and causing a short circuit; by setting a third assembly part of the top spacer to be detachably connected to the first side spacer and the second side spacer respectively, the spacer assembly forms a split structure, which is convenient for assembly and disassembly, thereby improving the assembly efficiency and maintenance efficiency of the spacer assembly.

[0022] In one possible embodiment, the first side spacer also includes a fourth assembly part, which is located between the outermost first assembly part on the first side spacer and the end part on the same side of the first side spacer; the second side spacer also includes a fifth assembly part, which is located between the outermost second assembly part on the second side spacer and the end part on the same side of the second side spacer; the third assembly part is detachably connected to the fourth assembly part and / or the fifth assembly part.

[0023] By arranging the fourth assembly part between the first assembly part located at the outermost side of the first side spacer and the end part on the same side of the first side spacer, and arranging the fifth assembly part between the second assembly part located at the outermost side of the second side spacer and the end part on the same side of the second side spacer, interference between the connection between the top spacer and the first side spacer and the second side spacer and the position of the pole ear can be avoided, making the structure of the spacer assembly more reasonable and reliable.

[0024] In a possible implementation, the fourth assembly portion includes a buckle, and the buckle is protruding relative to a surface of the top spacer close to the first side spacer and the second side spacer.

[0025] In one possible implementation, one of the first assembly portion and the second assembly portion includes an outwardly protruding connecting column, and the other of the first assembly portion and the second assembly portion includes a connecting groove, and the connecting column is detachably inserted into the connecting groove.

[0026] The first assembly portion and the second assembly portion have simple structures and are easy to connect, and can achieve a detachable connection while also ensuring a clamping and fixing effect on the tab.

[0027] In a possible implementation, the ends of the first side spacer and the second side spacer in the length direction are protruded with snap-fitting members, and the snap-fitting members are used to connect with the side plates of the battery.

[0028] By providing a gap between the first assembly portion and each end portion of the first side spacer, and a gap between the second assembly portion and each end portion of the second side spacer, the connection strength between the first side spacer and the second side spacer is improved. After being connected with the side plate, the first side spacer and the second side spacer are not easily pulled and deformed by the side plate, thereby avoiding affecting the clamping and fixing strength of the pole ear.

[0029] In one possible implementation, the side plate is connected to the two end faces of the first side spacer and the second side spacer in the length direction, the side plate is used to fix the pole core, and a clamping hole adapted to the shape of the clamping piece is provided on the side plate, and the clamping piece is inserted into the clamping hole.

[0030] In a second aspect, the present application provides a battery comprising the spacer assembly provided by any one of the embodiments of the first aspect.

[0031] The spacer assembly and battery provided in the present application are convenient for assembling or disassembling the first side spacer and the second side spacer by providing a detachable connection between the first assembly part and the second assembly part, thereby improving the assembly efficiency of the spacer assembly; by providing a gap between the first assembly part and each end of the first side spacer, and a gap between the second assembly part and each end of the second side spacer, the first assembly part and the second assembly part are close to the middle area of ​​the first side spacer and the second side spacer, thereby improving the connection strength between the first assembly part and the second assembly part, preventing the first side spacer and the second side spacer from deforming in the middle area when the length is long, thereby avoiding affecting the clamping and fixing effect of the pole ear. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the implementation methods or the description of the prior art. Obviously, the drawings described below are only some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] FIG1 is an exploded schematic diagram of a spacer assembly according to an embodiment;

[0034] FIG2 is a cross-sectional view taken along the AA direction in FIG1 ;

[0035] FIG3 is a schematic structural diagram of a first side spacer according to an embodiment;

[0036] FIG4 is an enlarged view of point B in FIG3 ;

[0037] FIG5 is an enlarged view of point C in FIG3 ;

[0038] FIG6 is a schematic diagram of a first distance A1 and a third distance A3 of a first side spacer according to an embodiment;

[0039] FIG7 is a schematic diagram of a partial assembly of a battery according to an embodiment;

[0040] FIG8 is a three-dimensional cross-sectional view taken along the DD direction in FIG7 ;

[0041] FIG9 is an enlarged view of point E in FIG8 observed along the length direction of the spacer assembly.

[0042] Explanation of the accompanying drawings: 1-first side spacer; 11-first assembly part; 111-connecting column; 112-connecting groove; 12-fourth assembly part; 13-clamping piece; 2-second side spacer; 21-second assembly part; 22-fifth assembly part; 3-top spacer; 31-third assembly part; 311-snap; 100-ear; 200-side plate; 300-spacer assembly; 400-battery. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0044] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be an intermediate component. When a component is referred to as being "connected to" another component, it may be directly connected to the other component or there may be an intermediate component.

[0045] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0046] Unless otherwise defined, all technical and scientific terms used in this application have the same meanings as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used in this application includes any and all combinations of one or more of the relevant listed items.

[0047] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", and "right" is based on the orientation or positional relationship described in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0049] The following describes some embodiments of the present application in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features therein may be combined with each other.

[0050] As shown in Figures 1 to 9, the spacer assembly 300 provided in the embodiment of the present application includes a first side spacer 1 and a second side spacer 2. The first side spacer 1 and the second side spacer 2 are arranged relative to each other. The first side spacer 1 and the second side spacer 2 have the same shape and size to achieve mutual adaptation and connection. For example, as shown in Figure 1, the first side spacer 1 and the second side spacer 2 are both long strips and have the same length. The spacer assembly 300 is arranged in the housing of the battery 400, between the pole core and the cover plate, and defines a space between the pole core and the cover plate for accommodating the battery's pole ear 100. Exemplarily, the spacer assembly 300 is suitable for a blade battery.

[0051] The first side spacer 1 is provided with a first assembly portion 11, and the second side spacer 2 is provided with a second assembly portion 21. The first assembly portion 11 and the second assembly portion 21 are detachably connected. A gap is provided between the first side spacer 1 and the second side spacer 2, and the gap is used to accommodate the battery tab 100. The first assembly portion 11 is spaced from each end of the first side spacer 1, and the second assembly portion 21 is spaced from each end of the second side spacer 2.

[0052] The first side spacer 1 and the second side spacer 2 are detachably connected via the first assembly portion 11 and the second assembly portion 21, which facilitates assembly and disassembly, and is beneficial to improving the assembly efficiency and maintenance efficiency of the spacer assembly 300. A gap is provided in the middle region between the first side spacer 1 and the second side spacer 2, and the bent tab 100 passes through the gap and is clamped and fixed by the first side spacer 1 and the second side spacer 2. As shown in FIG8 or FIG9, by constraining the tab 100 in the gap between the first side spacer 1 and the second side spacer 2, the tab 100 does not squeeze the pole core located below the first side spacer 1 and the second side spacer 2, thereby preventing a short circuit between the positive and negative poles.

[0053] Different battery models may have different lengths. For some shorter batteries, positioning the first and second assembly portions 11, 21 at the ends of the first and second side spacers 1, 2 allows for reliable connection between the first and second side spacers 1, 2 while ensuring that the intermediate region between the first and second side spacers 1, 2 can effectively clamp the tab 100. However, for longer batteries, the first and second side spacers 1, 2 are also longer. If the first and second assembly portions 11, 21 are positioned at the ends of the first and second side spacers 1, 2, the intermediate region between the first and second side spacers 1, 2 is likely to deform in the absence of a connecting element, making it difficult to maintain sufficient clamping strength for the tab 100, resulting in the tab 100 squeezing the tab core and causing a short circuit. It should be understood that the "length" direction mentioned above refers to the left-right direction in FIG. 6 .

[0054] The spacer assembly 300 provided in this embodiment is configured such that a gap is provided between the first assembly portion 11 and each end portion of the first side spacer 1, and a gap is provided between the second assembly portion 21 and each end portion of the second side spacer 2, so that the first assembly portion 11 and the second assembly portion 21 are close to the middle area of ​​the first side spacer 1 and the second side spacer 2, which is beneficial to strengthening the connection strength of the middle area between the first side spacer 1 and the second side spacer 2, reducing the possibility and amount of deformation in the middle area, ensuring the clamping strength of the middle area of ​​the first side spacer 1 and the second side spacer 2 on the pole ear 100, so that the pole ear 100 is firmly constrained in the gap to avoid squeezing the pole core and causing a short circuit.

[0055] The spacer assembly 300 provided in the present application is convenient for assembling or disassembling the first side spacer 1 and the second side spacer 2 by setting a detachable connection between the first assembly part 11 and the second assembly part 21, thereby improving the assembly efficiency of the spacer assembly 300; by setting a gap between the first assembly part 11 and each end of the first side spacer 1, and a gap between the second assembly part 21 and each end of the second side spacer 2, the first assembly part 11 and the second assembly part 21 are close to the middle area of ​​the first side spacer 1 and the second side spacer 2, thereby improving the connection strength between the first assembly part 11 and the second assembly part 21, and preventing the first side spacer 1 and the second side spacer 2 from deforming in the middle area when the length is long, thereby affecting the clamping and fixing effect of the tab 100.

[0056] In a specific embodiment, the number of the first assembly portion 11 and the second assembly portion 21 are both multiple, the multiple first assembly portions 11 are spaced apart on the first side spacer 1, the multiple second assembly portions 21 are spaced apart on the second side spacer 2, the maximum distance between two adjacent first assembly portions 11 is the first distance A1, the maximum distance between two adjacent second assembly portions 21 is the second distance A2, the length of the tab 100 along the length direction of the first side spacer 1 is the tab length L, and satisfies: L <A1<R; L<A2<R;

[0057] Wherein, R is a preset length, and the preset length R satisfies: 100mm≤R≤150mm.

[0058] The tab 100 is located between the two first assembly portions 11 with the largest spacing, and between the two second assembly portions 21 with the largest spacing. For example, the tab 100 is located between the two first assembly portions 11 closest to the middle region of the first side spacer 1, and between the two second assembly portions 21 closest to the middle region of the second side spacer 2. By setting the first distance A1 and the second distance A2 to be greater than the tab length L, it is ensured that the positions of the first assembly portion 11 and the second assembly portion 21 do not interfere with the position of the tab 100, making it easier for the tab 100 to be accommodated in the middle region of the first side spacer 1 and the second side spacer 2.

[0059] The preset length R is a pre-set length parameter. When the first distance A1 and the second distance A2 are less than the preset length R, the clamping strength of the middle area of ​​the first side spacer 1 and the second side spacer 2 on the tab 100 can be effectively guaranteed, preventing the tab 100 from being scattered or squeezed in the gap.

[0060] Furthermore, the minimum distance between the first assembly portion 11 and the end of the first side spacer 1 is a third distance A3, and the minimum distance between the second assembly portion 21 and the end of the second side spacer 2 is a fourth distance A4, satisfying:

[0061] For example, as shown in FIG6 , there are two first assembly portions 11 and two second assembly portions 21. The third distance A3 between the two first assembly portions 11 and their ends on the same side of the first side spacer 1 can be the same or different, and the third distance A3 corresponding to the two first assembly portions 11 satisfies the above-mentioned relationship. Similarly, the fourth distance A4 between the two second assembly portions 21 and their ends on the same side of the second side spacer 2 can be the same or different, and the fourth distance A4 corresponding to the two second assembly portions 21 satisfies the above-mentioned relationship.

[0062] By setting the third distance A3 and the fourth distance A4 to satisfy the above relationship, it is beneficial to simultaneously ensure the connection strength of the two end areas and the middle area of ​​the first side spacer 1 and the second side spacer 2, so that the first side spacer 1 and the second side spacer 2 are not only reliably connected, but also can firmly clamp and fix the battery tab 100.

[0063] In another optional embodiment, the following conditions are met:

[0064] The number of the first fitting portions 11 and the number of the second fitting portions 21 are both at least three.

[0065] In this embodiment, when both the third distance A3 and the fourth distance A4 are greater than half the length of the tab 100, providing at least three first assembly portions 11 and second assembly portions 21 facilitates strengthening the connection strength between the first side spacer 1 and the second side spacer 2, thereby firmly clamping and fixing the tab 100 of the battery along the length direction of the first side spacer 1 and the second side spacer 2. Optionally, when both the third distance A3 and the fourth distance A4 are greater than half the length of the tab 100, a top spacer 3 may be added, or first assembly portions 11 and second assembly portions 21 may be provided at the ends of the first side spacer 1 and the second side spacer 2 to improve the connection strength between the first side spacer 1 and the second side spacer 2 along the length direction.

[0066] Based on any of the above embodiments, the number of first assembly portions 11 and second assembly portions 21 is an even number. For example, the number of first assembly portions 11 and second assembly portions 21 can be four, six, etc. The multiple first assembly portions 11 are spaced apart along the length of the first side spacer 1 and are symmetrical with respect to the perpendicular midline of the first side spacer 1; the multiple second assembly portions 21 are spaced apart along the length of the second side spacer 2 and are symmetrical with respect to the perpendicular midline of the second side spacer 2. It should be understood that the perpendicular midline of the first side spacer 1 and the second side spacer 2 is an imaginary line perpendicular to the midpoints of the first side spacer 1 and the second side spacer 2 in the length direction. The positions of the multiple first assembly portions 11 are mirror-symmetrical with respect to the perpendicular midline of the first side spacer 1, and the positions of the multiple second assembly portions 21 are mirror-symmetrical with respect to the perpendicular midline of the second side spacer 2.

[0067] In this embodiment, by arranging the first assembly part 11 and the second assembly part 21 to be symmetrical, the connection between the first side spacer 1 and the second side spacer 2 in the length direction is more symmetrical and uniform, thereby improving the connection reliability of the first side spacer 1 and the second side spacer 2.

[0068] The spacer assembly 300 also includes a top spacer 3, which is located on the same side of the first side spacer 1 and the second side spacer 2. The top spacer 3 is provided with a third mounting portion 31, which is removably connected to the first side spacer 1 and / or the second side spacer 2. The top spacer 3 is elongated, and its length matches the length of the first and second side spacers 1 and 2. Specifically, the top spacer 3 is located on the side of the first and second side spacers 1 and 2 that is away from the pole core. For example, as shown in Figure 1, the top spacer 3 is located above the first and second side spacers 1 and 2.

[0069] By setting the top spacer 3, the pole ear 100 can be effectively constrained in the space formed by the top spacer 3, the first side spacer 1 and the second side spacer 2, preventing the pole ear 100 from squeezing the pole core and causing a short circuit; by setting the third assembly part 31 of the top spacer 3 to be detachably connected with the first side spacer 1 and / or the second side spacer 2, the spacer assembly 300 forms a split structure, which is convenient for assembly and disassembly, thereby improving the assembly efficiency and maintenance efficiency of the spacer assembly 300.

[0070] Furthermore, as shown in FIG3 , the first side spacer 1 further includes a fourth assembly portion 12, which is located between the outermost first assembly portion 11 on the first side spacer 1 and the end portion on the same side of the first side spacer 1. The second side spacer 2 further includes a fifth assembly portion 22, which is located between the outermost second assembly portion 21 on the second side spacer 2 and the end portion on the same side of the second side spacer 2. The third assembly portion 31 is detachably connected to the fourth assembly portion 12 and / or the fifth assembly portion 22.

[0071] By arranging the fourth assembly part 12 between the first assembly part 11 located on the outermost side of the first side spacer 1 and the end on the same side of the first side spacer 1, and arranging the fifth assembly part 22 between the second assembly part 21 located on the outermost side of the second side spacer 2 and the end on the same side of the second side spacer 2, interference between the connection between the top spacer 3 and the first side spacer 1 and the second side spacer 2 and the position of the tab 100 can be avoided, making the structure of the spacer assembly 300 more reasonable and reliable.

[0072] Optionally, as shown in Figure 2, the fourth assembly part 12 includes a buckle 311 that protrudes outward from the surface of the top spacer 3 close to the first side spacer 1 and the second side spacer 2, and the end of the buckle 311 is provided with a hook-shaped stopper for abutting with the fourth assembly part 12 or the fifth assembly part 22 to limit the relative movement between the top spacer 3 and the side spacer.

[0073] In a specific embodiment, as shown in Figures 3 to 5, one of the first assembly portion 11 and the second assembly portion 21 includes an outwardly protruding connecting post 111, and the other of the first assembly portion 11 and the second assembly portion 21 includes a connecting groove 112, and the connecting post 111 is detachably inserted into the connecting groove 112. The first assembly portion 11 and the second assembly portion 21 are detachably connected by the engaging and locking connection between the connecting post 111 and the connecting groove 112. The cross-section of the connecting post 111 along the height direction of the first assembly portion 11 can be semicircular, circular, square, etc., and the connecting groove 112 can be a hole or groove adapted to the shape of the connecting post 111, for example, the connecting groove 112 can be a semicircular hole, a circular hole, a square hole, etc.

[0074] It should be noted that, when there are multiple first assembly parts 11 and multiple second assembly parts 21, the structures of the multiple first assembly parts 11 or the multiple second assembly parts 21 may be the same, for example, the multiple first assembly parts 11 all include connecting columns 111, and the multiple second assembly parts 21 all include connecting grooves 112; the structures of the multiple first assembly parts 11 or the multiple second assembly parts 21 may also be different, for example, some of the first assembly parts 11 include connecting columns 111, and another part of the first assembly parts 11 include connecting grooves 112, and the multiple second assembly parts 21 are adaptively connected to the corresponding first assembly parts 11, some of the second assembly parts 21 include connecting grooves 112, and another part of the second assembly parts 21 include connecting columns 111.

[0075] In this embodiment, the first assembly portion 11 and the second assembly portion 21 have simple structures and are easy to connect. While achieving a detachable connection, they can also ensure a clamping and fixing effect on the tab 100 .

[0076] A clip 13 is protruding from the end of the first side spacer 1 and the second side spacer 2 in the length direction, and the clip 13 is used to connect to the side plate 200 of the battery. Specifically, as shown in Figure 7, the side plate 200 is connected to the two end faces of the first side spacer 1 and the second side spacer 2 in the length direction, and the side plate 200 is used to fix the pole core. A clip hole that is adapted to the shape of the clip 13 is provided on the side plate 200, and the clip 13 is inserted into the clip hole. The clip 13 and the clip hole can be detachably connected or fixedly connected. There can be one or more clips 13 on the end faces of the first side spacer 1 and the second side spacer 2, and this application does not make any specific restrictions. The spacer assembly 300 provided in the present application improves the connection strength between the first side spacer 1 and the second side spacer 2 by arranging a gap between the first assembly part 11 and each end of the first side spacer 1, and a gap between the second assembly part 21 and each end of the second side spacer 2. After being connected with the side plate 200, the first side spacer 1 and the second side spacer 2 are not easily pulled and deformed by the side plate 200, thereby avoiding affecting the clamping and fixing strength of the pole ear.

[0077] The present application also provides a battery 400 , comprising the spacer assembly 300 provided in any of the above embodiments.

[0078] In the description of this specification, the description with reference to the terms "embodiment", "specific embodiment", "example" or "specific example" 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 present application. In this specification, the schematic expressions of the above terms do 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. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples, unless they are contradictory.

[0079] The above disclosure is only a preferred embodiment of the present application, and certainly cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present application are still within the scope covered by the present application.

Claims

1. A spacer assembly (300), characterized in that: include: A first side spacer (1) is provided with a first assembly portion (11); a second side spacer (2), arranged opposite to the first side spacer (1), the second side spacer (2) being provided with a second assembly portion (21), the first assembly portion (11) and the second assembly portion (21) being detachably connected, a gap being provided between the first side spacer (1) and the second side spacer (2), the gap being used to accommodate a tab (100) of the battery (400); There is a gap between the first assembly portion (11) and each end of the first side spacer (1), and there is a gap between the second assembly portion (21) and each end of the second side spacer (2).

2. The spacer assembly (300) according to claim 1, characterized in that: The number of the first assembly part (11) and the number of the second assembly part (21) are both multiple, the multiple first assembly parts (11) are distributed at intervals on the first side spacer (1), the multiple second assembly parts (21) are distributed at intervals on the second side spacer (2), the maximum distance between two adjacent first assembly parts (11) is a first distance A1, the maximum distance between two adjacent second assembly parts (21) is a second distance A2, the length of the pole lug (100) along the length direction of the first side spacer (1) is the pole lug length L, and satisfies: L <A1<R; L<A2<R; Wherein, R is a preset length, and the preset length R satisfies: 100mm≤R≤150mm.

3. The spacer assembly (300) according to claim 2, characterized in that: The minimum distance between the first assembly portion (11) and the end of the first side spacer (1) is a third distance A3, and the minimum distance between the second assembly portion (21) and the end of the second side spacer (2) is a fourth distance A4, satisfying:

4. The spacer assembly (300) according to claim 3, characterized in that: satisfy: The number of the first assembly parts (11) and the number of the second assembly parts (21) are both at least three.

5. The spacer assembly (300) according to any one of claims 2 to 4, characterized in that: The number of the first assembly parts (11) and the number of the second assembly parts (21) are both even numbers, and the plurality of the first assembly parts (11) are distributed at intervals in the length direction of the first side spacer (1) and are symmetrical with respect to the perpendicular midline of the first side spacer (1); The plurality of second assembly portions (21) are distributed at intervals in the length direction of the second side spacer (2) and are symmetrical relative to the perpendicular midline of the second side spacer (2).

6. The spacer assembly (300) according to any one of claims 2 to 4, characterized in that: The spacer assembly (300) also includes a top spacer (3), which is located on the same side of the first side spacer (1) and the second side spacer (2), and the top spacer (3) is provided with a third assembly part (31), and the third assembly part (31) is detachably connected to the first side spacer (1) and / or the second side spacer (2).

7. The spacer assembly (300) according to claim 6, characterized in that: The first side spacer (1) further comprises a fourth assembly portion (12), wherein the fourth assembly portion (12) is located between the first assembly portion (11) on the outermost side of the first side spacer (1) and the end portion on the same side of the first side spacer (1); The second side spacer (2) further comprises a fifth assembly portion (22), wherein the fifth assembly portion (22) is located between the outermost second assembly portion (21) on the second side spacer (2) and the end portion on the same side of the second side spacer (2); The third assembly part (31) is detachably connected to the fourth assembly part (12) and / or the fifth assembly part (22).

8. The spacer assembly (300) according to claim 7, characterized in that: The fourth assembly portion (12) comprises a buckle (311), and the buckle (311) is protruding relative to the surface of the top spacer (3) close to the first side spacer (1) and the second side spacer (2).

9. The spacer assembly (300) according to claim 1, characterized in that: One of the first assembly part (11) and the second assembly part (21) comprises an outwardly protruding connecting column (111), and the other of the first assembly part (11) and the second assembly part (21) comprises a connecting groove (112), and the connecting column (111) is detachably inserted into the connecting groove (112).

10. The spacer assembly (300) according to claim 1, characterized in that: The ends of the first side spacer (1) and the second side spacer (2) in the length direction are protrudingly provided with a clamping piece (13), and the clamping piece (13) is used to be connected to the side plate (200) of the battery (400).

11. The spacer assembly (300) according to claim 10, characterized in that: The side plate (200) is connected to the two end faces of the first side spacer (1) and the second side spacer (2) in the length direction, and the side plate (200) is used to fix the pole core. The side plate (200) is provided with a clamping hole that is adapted to the shape of the clamping piece (13), and the clamping piece (13) is inserted into the clamping hole.

12. A battery (400), characterized in that: A spacer assembly (300) comprising any one of claims 1 to 11.

Images