Battery shell assembly and battery

Abstract

The utility model relates to the technical field of batteries, particularly provides a battery shell assembly and a battery, and aims to solve the problems that the quantity of battery shell structures is increased, the battery cell space is occupied, the volume of a single battery cell is reduced, and the energy density of the battery cell is reduced. In order to achieve the purpose, the battery shell assembly comprises a partition plate, a first shell located on one side of the partition plate and a second shell located on the other side of the partition plate, the first shell, the second shell and the partition plate are integrally formed, and pole cores are arranged in the first shell and the second shell. The two pole cores share one battery shell assembly, so that the number of structures can be greatly reduced, the battery core has a relatively large arrangement space, the size of the battery core is not changed, and the energy density of the battery core is not reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and specifically provides a battery housing component and a battery. Background Art

[0002] With the development of electric vehicles, consumers have an increasing demand for fast charging, among which high-voltage fast charging is currently a mainstream development direction. The related 800V high-voltage system has been put on the commercialization schedule. Under this trend, the requirements for battery pack voltage are also getting higher and higher. However, as the battery pack voltage increases, more cells need to be connected in series internally, which will increase the number of battery shell structures, thus occupying the space of the single cell, making the volume of the single cell smaller, and then causing the problem of reduced cell energy density.

[0003] Accordingly, the art needs a new battery housing assembly and a battery to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the above technical problem, that is, to solve the problem that the number of existing battery shell structures increases, occupying the space of single battery cells, making the volume of single battery cells smaller, resulting in reduced energy density of the battery cells.

[0005] In a first aspect, the utility model provides a battery housing assembly, which includes a partition, a first housing located on one side of the partition, and a second housing located on the other side of the partition, wherein the first housing and the second housing are integrally formed with the partition.

[0006] In a preferred technical solution of the above battery housing assembly, a first cavity is provided between the first housing and the partition; and / or a second cavity is provided between the second housing and the partition.

[0007] In the preferred technical solution of the above-mentioned battery shell assembly, the outer edge of the first shell is provided with a first convex edge that fits with the edge of the partition; and / or the outer edge of the second shell is provided with a second convex edge that fits with the edge of the partition; wherein, the first shell and the second shell are both provided with a pole core inside, and the first shell and the second shell are both provided with a first connecting component connected to the pole core.

[0008] In the preferred technical solution of the above-mentioned battery shell assembly, the first side wall of the first shell has a first through hole; the first connecting assembly includes a first connecting plate and a first pole; the first connecting plate is located on the outside of the first side wall of the first shell and has a second through hole; the first pole is located on the inside of the first side wall of the first shell, the front part of the first pole is arranged in the first through hole and the second through hole and is interference fit with the second through hole, and the rear part of the first pole is connected to the pole core.

[0009] In the preferred technical scheme of the above-mentioned battery shell assembly, the first connecting assembly also includes a first connecting member, a first insulating plastic member, a first insulating gasket and a first sealing ring; the first connecting member and the first insulating plastic member are superimposed on the inner side of the first side wall of the first shell, the first connecting member is provided with a third through hole cooperating with the first pole for installing the first pole, and the first insulating plastic member has a fourth through hole cooperating with the first pole for inserting the first pole; the first insulating gasket and the first sealing ring are superimposed on the outer side of the first side wall of the first shell and between the first connecting piece, the first sealing ring and the first through hole are abutted against each other, and the first insulating gasket has a fifth through hole.

[0010] In the preferred technical solution of the above-mentioned battery housing assembly, the first insulating plastic part includes a first bottom panel and a first vertical panel formed in one piece, and the fourth through hole is arranged on the first vertical panel; the first connecting part includes a second bottom panel and a second vertical panel formed in one piece, and the third through hole is arranged on the second vertical panel; wherein, the second bottom panel is pressed against the first bottom panel, and the second vertical panel is pressed against the first vertical panel.

[0011] In the preferred technical solution of the above battery housing assembly, the partition is provided with a second connecting assembly on a side away from the first connecting member, and the second connecting assembly is connected to the pole core.

[0012] In the preferred technical scheme of the above-mentioned battery shell assembly, the partition is provided with a partition through hole on the side away from the first connecting member; the second connecting assembly includes a first insulating frame, a second insulating frame and a rivet assembly; the first insulating frame and the second insulating frame are symmetrically arranged along the partition, and the first insulating frame and the second insulating frame are both provided with insulating frame through holes corresponding to the partition through holes; the rivet assembly includes a second connecting piece and a rivet block; the rivet block is arranged on the side of the partition away from the first connecting member, the rivet block has a rivet block through hole, the second connecting piece is provided with a second pole, and a third sealing ring is sleeved on the second pole; wherein, the second connecting piece is arranged on the first insulating frame so that the second pole is penetrated through the insulating frame through hole, the partition through hole and the rivet block through hole, so that the first insulating frame and the second insulating frame are fixed.

[0013] In the preferred technical solution of the above battery housing assembly, an explosion-proof valve and a liquid injection hole are provided on the same side of the first housing and the second housing.

[0014] When the above technical solution is adopted, the battery shell assembly of the present invention includes a partition, a first shell located on one side of the partition and a second shell located on the other side of the partition. The first shell and the second shell are integrally formed with the partition, which can greatly reduce the number of structures. Therefore, the battery cell has a larger layout space, and the volume of the battery cell remains unchanged, and the energy density of the battery cell will not be reduced.

[0015] Furthermore, the first side wall of the first shell in the utility model has a first through hole, and the first connecting assembly includes a first connecting piece and a first pole, wherein the first connecting piece is located outside the first side wall of the first shell and has a second through hole, the first pole is located inside the first side wall of the first shell, the front of the first pole is arranged in the first through hole and the second through hole and is interference fit with the second through hole, and the rear of the first pole is connected to the pole core. By passing the front of the first pole through the first through hole of the first shell and connecting with the second through hole of the first connecting piece by interference fit, so that the first connecting assembly and the first shell form a detachable riveted connection, the rear of the first pole is abutted against the pole core in the first battery box, and no other connecting parts are required, which can reduce the number of parts and simplify the process.

[0016] Furthermore, the first connection assembly in the utility model also includes a first connection member, a first insulating plastic member, a first insulating gasket and a first sealing ring. The first connection member and the first insulating plastic member are superimposed on the inner side of the first side wall of the first shell, the first connection member is provided with a third through hole matched with the first pole for installing the first pole, the first insulating plastic member has a fourth through hole matched with the first pole for inserting the first pole, the first insulating gasket and the first sealing ring are superimposed on the outer side of the first side wall of the first shell and between the first connection piece, the first sealing ring and the first through hole are against each other, and the first insulating gasket has a fifth through hole. Insulation is achieved by arranging the first insulating plastic member, the first insulating gasket and the first sealing ring.

[0017] Furthermore, the first insulating plastic part in the utility model includes a first bottom panel and a first vertical panel integrally formed, and the fourth through hole is provided on the first vertical panel. The first connecting member includes a second bottom panel and a second vertical panel integrally formed, and the third through hole is provided on the second vertical panel, the second bottom panel is pressed against the first bottom panel, and the second vertical panel is pressed against the first vertical panel. By configuring the first insulating plastic part in the form of the first bottom panel and the first vertical panel, and configuring the first connecting member in the form of the second bottom panel and the second vertical panel, the first insulating plastic part and the first connecting member are adapted to each other, thereby insulating the first connecting member and the first pole.

[0018] Furthermore, the rear end of the partition in the utility model is provided with a partition through hole, and the second connection assembly includes a first insulating frame, a second insulating frame and a riveting assembly. The first insulating frame and the second insulating frame are symmetrically arranged along the partition, and the first insulating frame and the second insulating frame are both provided with insulating frame through holes corresponding to the partition through holes. The riveting assembly includes a second connecting piece and a riveting block, the riveting block is arranged on the side of the partition away from the first connecting member, the riveting block has a riveting block through hole, the riveting block through hole is provided with a second sealing ring, the second connecting piece is provided with a second pole, and a third sealing ring is sleeved on the second pole, wherein the second connecting piece is arranged on the first insulating frame so that the second pole is passed through the insulating frame through hole, the partition through hole and the riveting block through hole, so that the first insulating frame and the second insulating frame are fixed. The pole core is connected in series by the first insulating frame and the second insulating frame being abutted against each other, and the second connecting piece, the riveting block, the second sealing ring and the third sealing ring are provided to fix the first insulating frame and the second insulating frame while insulating, and the structure is simple and easy to install.

[0019] In a second aspect, the utility model provides a battery, comprising the battery housing assembly described in the first aspect.

[0020] The battery of the present technical solution includes the battery housing assembly of any technical solution of the present utility model, and thus has all the technical effects of the battery housing assembly of any technical solution of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0022] Figure 1 It is a schematic structural diagram of the battery housing assembly of the utility model after folding;

[0023] Figure 2 It is a schematic diagram of the structure of the battery housing assembly of the utility model after being unfolded;

[0024] Figure 3 It is an exploded view of the battery housing assembly of the utility model;

[0025] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

[0026] Figure 5 yes Figure 3 A partial enlarged view of point B in the middle;

[0027] Figure 6 It is a structural schematic diagram of the pole core of the battery housing assembly of the utility model.

[0028] List of markers in the figure:

[0029] 1. first housing; 11. first protrusion; 12. first connecting assembly; 13. first through hole; 14. first cavity; 15. first side wall;

[0030] 121, first connecting piece; 122, first pole; 123, second through hole; 124, first connecting piece; 125, first insulating plastic piece; 126, first insulating gasket; 127, fifth through hole; 128, first sealing ring;

[0031] 1241, second bottom panel; 1242, second vertical panel;

[0032] 1251, first bottom panel; 1252, first vertical panel; 1253, fourth through hole;

[0033] 2. partition; 23. partition through hole;

[0034] 211, second connecting piece; 212, second pole; 213, third sealing ring; 214, insulating frame through hole; 215, first insulating frame;

[0035] 221, second sealing ring; 222, riveting block through hole; 223, riveting block; 224, second insulating frame; 216, bottom plate; 217, raised edge;

[0036] 3. second housing; 31. second convex edge;

[0037] 4. Pole core; 5. Explosion-proof valve; 6. Liquid injection hole. DETAILED DESCRIPTION

[0038] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the battery housing assembly and battery of the present invention, and are not intended to limit the protection scope of the present invention.

[0039] It should be noted that, in the description of the present invention, the terms “first” and “second” are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0040] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] See first Figure 1The first aspect of the utility model provides a battery housing assembly, which generally includes an integral partition 2, a first housing 1, and a second housing 3. The first housing 1 is located on one side of the partition 2, and the second housing 3 is located on the other side of the partition 2. A pole core 4 is disposed inside the first housing 1 and the second housing 3. The two pole cores 4 share one battery housing assembly, which can greatly reduce the number of structures. Therefore, the battery cell has a larger layout space, and the battery cell volume remains unchanged, which will not cause a decrease in the energy density of the battery cell.

[0042] See also Figure 2 In one embodiment, a first cavity 14 is provided between the first shell 1 and the partition 2; and / or a second cavity is provided between the second shell 3 and the partition 2, and a pole core 4 is provided inside the first cavity 14 and the second cavity, and the shapes and sizes thereof are adapted.

[0043] Specifically, the first shell 1 has a first cavity 14 that is concave downward, and the first shell 1 is turned over along its length and pressed on the upper surface of the partition 2. The second shell 3 has a second cavity that is convex upward, and the second shell 3 is turned down along its length and pressed on the lower surface of the partition 2. By turning over the first shell 1 and the second shell 3, a stacked battery shell assembly is formed. This arrangement allows the pole core 4 to be stacked to reduce the number of structures, so that the battery cell has a larger layout space, and the battery cell volume remains unchanged, and the battery cell energy density will not be reduced.

[0044] It should be noted that the present invention does not impose any restrictions on the specific shapes of the first shell 1, the second shell 3 and the partition 2, as long as the shapes of the first shell 1, the second shell 3 and the partition 2 remain consistent, preferably a rectangular body, and technical personnel in this field can set it according to actual conditions.

[0045] Continue to see Figure 2 Furthermore, the size of the partition 2 is adapted to the size of the first cavity 14 and the second cavity, so that the partition 2 and the first cavity 14 and the second cavity can be pressed together to set the pole core 4.

[0046] See also Figure 2 and Figure 3In one embodiment, the outer edge of the first shell 1 is provided with a first flange 11 that fits with the edge of the partition 2; and / or, the outer edge of the second shell 3 is provided with a second flange 31 that fits with the edge of the partition 2. Wherein, the first shell 1 and the second shell 3 are both provided with a pole core 4 inside, and the first shell 1 and the second shell 3 are both provided with a first connecting component 12 connected with the pole core 4. By installing the first connecting component 12 at the front end of the first shell 1 and the second shell 3, the two first connecting components 12 are connected to the pole core 4 respectively, so that the pole core 4 is connected in series, the structure is simple, and the first flange 11 and the second flange 31 are provided to facilitate holding the battery shell assembly when installing the pole core 4, and the operation is convenient, and the first shell 1 and the second shell 3 are convenient for stable welding.

[0047] See also Figure 3 and Figure 4 In one embodiment, the first side wall of the first shell 1 has a first through hole 13, and the first connecting assembly 12 generally includes a first connecting piece 121 and a first pole 122. The first connecting piece 121 is located on the outside of the first side wall of the first shell 1 and has a second through hole 123, the first pole 122 is located on the inside of the first side wall of the first shell 1, the front of the first pole 122 is arranged in the first through hole 13 and the second through hole 123 and is connected to the second through hole 123 by interference fit, the rear of the first pole 122 is connected to the pole core 4, so that the first connecting assembly 12 and the first shell 1 are detachably connected, and the rear of the first pole 122 is abutted against the pole core 4. The above arrangement facilitates the installation of the first connecting assembly 12, improves the installation efficiency, does not require other connectors, and thus reduces the number of parts to simplify the process.

[0048] Continue to see Figure 4 Specifically, there are two first poles 122 , and there are also two first through holes 13 of the first housing 1 and two second through holes 123 of the first connecting piece 121 to adapt to the connection with the two first poles 122 to ensure the integrity of the structure.

[0049] Furthermore, the diameter of the front end of the first pole 122 is slightly larger than the diameter of the rear end of the first pole 122 , so that the first pole 122 and the second through hole 123 form an interference connection.

[0050] Optionally, both ends of the first connecting piece 121 are arc-shaped to avoid scratches during installation.

[0051] See also Figure 4In one embodiment, the first connection assembly 12 generally further includes a first connection member 124, a first insulating plastic member 125, a first insulating gasket 126 and a first sealing ring 128. The first connection member 124 and the first insulating plastic member 125 are superimposed on the inner side of the first side wall of the first shell 1, and the first connection member 124 is provided with a third through hole (not shown in the figure) that matches the first pole 122, and is used to install the first pole 122. The first insulating plastic member 125 has a fourth through hole 1253 that matches the first pole 122, and the fourth through hole 1253 is coaxially arranged with the first through hole 13 for inserting the first pole 122. The first insulating gasket 126 and the first sealing ring 128 are superimposed on the outer side of the first side wall of the first shell 1 and between the first connection piece 121. The first insulating gasket 126 and the first sealing ring 128 are stacked and arranged between the outer side of the first side wall of the first housing 1 and the first connecting piece 121 for insulation. The first sealing ring 128 and the first through hole 13 are against each other, and the sealing performance is good. The first insulating gasket 126 has a fifth through hole 127 coaxially arranged with the second through hole 123. Insulation is achieved by arranging the first insulating plastic part 125, the first insulating gasket 126 and the first sealing ring 128.

[0052] Optionally, the first insulating gasket 126 and the first connecting piece 121 have the same shape, so that the two can abut against each other, so that the first connecting piece 121 is insulated.

[0053] Continue to see Figure 4 Optionally, the rear of the first pole 122 is mounted on the third through hole of the first connector 124 and fixed, so that the first pole 122 and the first connector 124 form an integral part. Of course, the first pole 122 and the first connector 124 can also be processed as one piece.

[0054] Continue to see Figure 4 In this embodiment, the overall shape of the first insulating plastic part 125 matches the overall shape of the first connecting part 124 , which is beneficial to the insulation of the first connecting part 124 , and the first sealing ring 128 abuts against the first through hole 13 to insulate the first shell 1 .

[0055] See also Figure 4In one embodiment, the first insulating plastic part 125 generally includes a first bottom panel 1251 and a first vertical panel 1252 that are integrally formed. The fourth through hole 1253 is opened on the first vertical panel 1252. The first connecting member 124 generally includes a second bottom panel 1241 and a second vertical panel 1242 that are integrally formed. The third through hole is provided on the second vertical panel 1242, the second bottom panel 1241 is pressed against the first bottom panel 1251, and the second vertical panel 1242 is pressed against the first vertical panel 1252. By configuring the first insulating plastic part 125 in the form of the first bottom panel 1251 and the first vertical panel 1252, and configuring the first connecting member 124 in the form of the second bottom panel 1241 and the second vertical panel 1242, the first insulating plastic part 125 and the first connecting member 124 are adapted to each other, and the first connecting member 124 and the first pole 122 are insulated.

[0056] Continue to see Figure 4 In this embodiment, the angle between the first bottom panel 1251 and the first vertical panel 1252 is 90°, and the angle between the second bottom panel 1241 and the second vertical panel 1242 is also 90°. The first insulating plastic part 125 can better support the first connecting part 124, and no gap will be generated when the two are against each other, so as to avoid the problem of poor insulation.

[0057] In this embodiment, the size of the first bottom panel 1251 can be greater than or equal to the size of the second bottom panel 1241, and the two have the same shape. The size of the first vertical panel 1252 can also be greater than or equal to the size of the second vertical panel 1242, and the two have the same shape, which is beneficial to the insulation of the first connector 124.

[0058] It should be noted that the present invention does not impose any restrictions on the specific shapes of the first bottom panel 1251, the second bottom panel 1241, the first vertical panel 1252 and the second vertical panel 1242. The first bottom panel 1251, the second bottom panel 1241, the first vertical panel 1252 and the second vertical panel 1242 are preferably rectangular bodies, and those skilled in the art can set them according to actual conditions.

[0059] See also Figure 3 , Figure 4 and Figure 5 In one embodiment, the partition plate 2 is provided with a second connecting component on a side away from the first connecting member 124 , and the second connecting component is connected to the pole core 4 .

[0060] Continue to see Figure 3 , Figure 4 and Figure 5In a specific embodiment, the partition 2 is provided with a partition through hole 23 on a side away from the first connector 124, and the second connecting assembly generally includes a first insulating frame 215, a second insulating frame 224 and a riveting assembly. The first insulating frame 215 and the second insulating frame 224 are symmetrically arranged along the partition 2, and both the first insulating frame 215 and the second insulating frame 224 are provided with an insulating frame through hole 214 corresponding to the partition through hole 23. The riveting assembly generally includes a second connecting piece 211 and a riveting block 223. The riveting block 223 is arranged on a side of the partition 2 away from the first connector 124 and is located at the lower part of the second insulating frame 224. The riveting block 223 has a riveting block through hole 222, and a second sealing ring 221 is provided in the riveting block through hole 222. The second connecting piece 211 is provided with a second pole 212, and a third sealing ring 213 is sleeved on the second pole 212. Among them, the second connecting piece 211 is arranged on the first insulating frame 215, so that the second pole 212 is inserted into the insulating frame through hole 214, the partition through hole 23 and the riveting block through hole 222, so that the first insulating frame 215 and the second insulating frame 224 are fixed. The first insulating frame 215 and the second insulating frame 224 can be abutted against the pole core 4 to achieve at least two pole cores 4 in series. The second connecting piece 211, the riveting block 223, the second sealing ring 221 and the third sealing ring 213 are used to fix the first insulating frame 215 and the second insulating frame 224 while insulating, and the structure is simple and easy to install.

[0061] Continue to see Figure 5 In this embodiment, the second insulating frame 224 has the same structure as the first insulating frame 215. The first insulating frame 215 includes a bottom plate 216, which has two insulating frame through holes 214. The outer side and both ends of the bottom plate 216 are processed with raised edges 217 extending upward. The inner side of the bottom plate 216 is open, so that the first insulating frame 215 forms a semi-enclosed structure. The end of the pole core 4 is overlapped on the bottom plate 216 from the inner side of the bottom plate 216 and is limited by the raised edge 217.

[0062] Continue to see Figure 5 In this embodiment, there are two second poles 212, and there are also two third sealing rings 213 and second sealing rings 221. The lower part of the second pole 212 is inserted into the third sealing ring 213 and the second sealing ring 221 for insulating, sealing and fixing the second insulating frame 224 and the first insulating frame 215.

[0063] Continue to see Figure 3 In this embodiment, an explosion-proof valve 5 and a liquid injection hole 6 are provided on the same side of the first shell 1 and the second shell 3. When thermal runaway occurs, the explosion-proof valve 5 opens to prevent the battery cell 4 from exploding, thereby improving safety performance. The liquid injection hole 6 is used to inject electrolyte.

[0064] In a second aspect, the utility model provides a battery, including the battery housing assembly of the first aspect. The battery of this technical solution includes the battery housing assembly of any technical solution of the utility model, and thus has all the technical effects of the battery housing assembly of any technical solution of the utility model.

[0065] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A battery housing assembly, characterized in that: The battery housing assembly includes a partition, a first housing located on one side of the partition, and a second housing located on the other side of the partition. The first housing and the second housing are integrally formed with the partition.

2. The battery housing assembly according to claim 1, characterized in that: A first cavity is provided between the first shell and the partition; and / or a second cavity is provided between the second shell and the partition.

3. The battery housing assembly according to claim 1 or 2, characterized in that: The outer edge of the first shell is provided with a first convex edge which is in contact with the edge of the partition; and / or the outer edge of the second shell is provided with a second convex edge which is in contact with the edge of the partition; Wherein, a pole core is disposed inside the first shell and the second shell, and a first connecting component connected to the pole core is disposed inside the first shell and the second shell.

4. The battery housing assembly according to claim 3, characterized in that: The first side wall of the first shell has a first through hole; The first connection assembly includes a first connection piece and a first pole; The first connecting piece is located outside the first side wall of the first shell and has a second through hole; The first pole is located inside the first side wall of the first shell, the front portion of the first pole is disposed in the first through hole and the second through hole and is interference fit with the second through hole, and the rear portion of the first pole is connected to the pole core.

5. The battery housing assembly according to claim 4, characterized in that: The first connecting assembly also includes a first connecting member, a first insulating plastic member, a first insulating gasket and a first sealing ring; The first connecting member and the first insulating plastic member are stacked and arranged on the inner side of the first side wall of the first shell, the first connecting member is provided with a third through hole matched with the first pole, and the first insulating plastic member has a fourth through hole matched with the first pole; The first insulating gasket and the first sealing ring are stacked and arranged between the outer side of the first side wall of the first shell and the first connecting piece.

6. The battery housing assembly according to claim 5, characterized in that: The first insulating plastic part includes a first bottom plate and a first vertical plate formed in one piece, and the fourth through hole is provided on the first vertical plate; The first connecting member includes an integrally formed second bottom plate and a second vertical plate, and the third through hole is provided on the second vertical plate; Wherein, the second bottom panel is pressed against the first bottom panel, and the second vertical panel is pressed against the first vertical panel.

7. The battery housing assembly according to claim 5, characterized in that: The partition is provided with a second connecting component on a side away from the first connecting member, and the second connecting component is connected to the pole core.

8. The battery housing assembly according to claim 7, characterized in that: The partition plate is provided with a partition plate through hole on a side away from the first connecting member; The second connection assembly includes a first insulating frame, a second insulating frame and a riveting assembly; The first insulating frame and the second insulating frame are symmetrically arranged along the partition, and the first insulating frame and the second insulating frame are both provided with insulating frame through holes corresponding to the through holes of the partition; The riveting assembly includes a second connecting piece and a riveting block; The riveting block is arranged on a side of the partition away from the first connecting member, and the riveting block has a riveting block through hole; The second connecting piece is provided with a second pole, and a third sealing ring is sleeved on the second pole; The second connecting piece is arranged on the first insulating frame, the second pole is passed through the insulating frame through hole, the partition through hole and the riveting block through hole, and the first insulating frame and the second insulating frame are fixed.

9. The battery housing assembly according to claim 1, characterized in that: An explosion-proof valve and a liquid injection hole are provided on the same side of the first shell and the second shell.

10. A battery, characterized in that: The battery comprises the battery housing assembly according to any one of claims 1-9.

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