Cover plate assembly of battery, battery and electric equipment

Abstract

The utility model discloses a cover plate assembly of a battery, the battery and electric equipment. The cover plate assembly of the battery comprises a cover plate main body, the electric connection assembly comprises a leading-out piece and a conductive column, the leading-out piece is arranged on one side of the cover plate main body, the conductive column is connected to the leading-out piece, and at least part of the conductive column penetrates through the cover plate main body; and the first heat conduction insulating part is arranged on the conductive column in a sleeving manner, one side of the first heat conduction insulating part is in contact with the lead-out sheet and the conductive column, and the other side of the first heat conduction insulating part is in contact with the cover plate main body. The conductive column is sleeved with the first heat-conducting insulating part, one side of the first heat-conducting insulating part is in contact with the leading-out piece and the conductive column, the other side of the first heat-conducting insulating part is in contact with the cover plate body, and therefore the first heat-conducting insulating part can quickly conduct the temperature of the conductive column and the leading-out piece to the cover plate body, the heat conduction effect of the cover plate assembly is improved, and the temperature rise of the battery can be quickly balanced.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a cover plate assembly of a battery, a battery and an electrical equipment. Background Art

[0002] In the related art, the cover plate assembly of a battery consists of: a cover plate main body, a conductive column, an insulating part 1, an insulating part 2, a sealing ring, a terminal, a lead-out piece, etc. The cover plate assembly is sealed through the sealing ring.

[0003] However, the existing cover plate assembly of a battery also has significant defects: the insulating part 1 is used as the insulating material between the cover plate main body and the conductive column, and the insulating part 2 is used as the insulating material between the cover plate main body and the lead-out piece. The current materials used for the above-mentioned insulating part 1 and insulating part 2 are both plastic materials. At present, the market has higher and higher requirements for the fast charging performance of batteries. As a part of the battery with a relatively high temperature, the cover plate assembly can accelerate heat dissipation through heat conduction. However, considering processing and manufacturing processes, the heat conduction ability of plastic materials is very limited. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art. For this purpose, the utility model provides a cover plate assembly of a battery. The first heat-conducting insulating part of the cover plate assembly can quickly conduct the temperatures of the conductive column and the lead-out piece to the cover plate main body, so as to quickly and evenly balance the temperature rise of the battery.

[0005] The utility model further provides a battery.

[0006] The utility model further provides an electrical equipment.

[0007] According to the cover plate assembly of a battery of the utility model, it includes: a cover plate main body; an electrical connection assembly, the electrical connection assembly includes: a lead-out piece and a conductive column, the lead-out piece is arranged on one side of the cover plate main body, the conductive column is connected to the lead-out piece, and at least part of the conductive column penetrates through the cover plate main body; a first heat-conducting insulating part, the first heat-conducting insulating part is sleeved on the conductive column, one side of the first heat-conducting insulating part is in contact with the lead-out piece and the conductive column, and the other side of the first heat-conducting insulating part is in contact with the cover plate main body.

[0008] According to the cover plate assembly of a battery of the utility model, a first heat-conducting insulating part is sleeved on the conductive column. One side of the first heat-conducting insulating part is in contact with the lead-out piece and the conductive column, and the other side is in contact with the cover plate main body. In this way, the first heat-conducting insulating part can quickly conduct the temperatures of the conductive column and the lead-out piece to the cover plate main body, so as to improve the heat conduction effect of the cover plate assembly, and can quickly and evenly balance the temperature rise of the battery.

[0009] In some examples of the utility model, the first heat-conducting insulating part is a single-layer, double-layer or multi-layer film-like structure.

[0010] In some examples of the present utility model, the first heat-conducting and insulating member is a single-layer film structure, and the first heat-conducting and insulating member is configured as a boron nitride thin film structural member.

[0011] In some examples of the present utility model, the first heat-conducting and insulating member is a three-layer film structure, and the first heat-conducting and insulating member includes: a base material layer, an adhesive layer, and a high-temperature heat-conducting layer, and the adhesive layer and the high-temperature heat-conducting layer are respectively disposed on both sides of the base material layer.

[0012] In some examples of the present utility model, the thickness of the first heat-conducting and insulating member is a, and the value range of a is: 0 mm < a ≤ 0.7 mm.

[0013] In some examples of the present utility model, the conductive post includes: a main body portion and a base, the base is connected to the lead-out piece, the first heat-conducting and insulating member is sleeved on the main body portion, and one side of the first heat-conducting and insulating member is in contact with the base.

[0014] In some examples of the present utility model, the cover assembly of the battery further includes: a seal, the seal is sleeved on the main body portion, at least a part of the first heat-conducting and insulating member is located between the base and the seal, and the cover main body presses on the side of the seal away from the first heat-conducting and insulating member.

[0015] In some examples of the present utility model, the cover assembly of the battery further includes: a second heat-conducting and insulating member, the electrical connection assembly further includes: a connection terminal, the second heat-conducting and insulating member is disposed on the side of the cover main body away from the lead-out piece, the connection terminal is disposed on the second heat-conducting and insulating member, and the conductive post passes through the second heat-conducting and insulating member and is electrically connected to the connection terminal.

[0016] In some examples of the present utility model, the gap between the second heat-conducting and insulating member and the outer wall surface of the conductive post is b, and the value range of b is: 0 mm < b ≤ 1 mm.

[0017] In some examples of the present utility model, the second heat-conducting and insulating member is a ceramic structural member or an electrolyte-resistant insulating film structural member.

[0018] The battery according to the present utility model includes: the cover assembly of the battery described above.

[0019] The electrical equipment according to the present utility model includes: the battery described above.

[0020] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0021] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the following description of embodiments in conjunction with the accompanying drawings, wherein:

[0022] Figure 1 is an exploded schematic view of a cover plate assembly of a battery according to an embodiment of the present utility model;

[0023] Figure 2 is a cross-sectional schematic view of a cover plate assembly of a battery according to an embodiment of the present utility model;

[0024] Figure 3 is a partially enlarged view of the first heat-conducting and insulating member.

[0025] Reference numerals:

[0026] 1. Cover plate assembly;

[0027] 10. Cover plate main body; 20. Electrical connection assembly; 200. Lead-out piece; 201. Conductive column; 202. Main body part; 203. Base; 204. Connection terminal; 30. First heat-conducting and insulating member; 300. Base material layer; 301. Adhesive layer; 302. High-temperature heat-conducting layer; 40. Sealing member; 50. Second heat-conducting and insulating member. Detailed implementation manners

[0028] The embodiments of the present utility model will be described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present utility model will be described in detail below.

[0029] Reference will be made below to Figures 1 - 3 to describe a cover plate assembly 1 of a battery according to an embodiment of the present utility model. The cover plate assembly 1 of the battery can be disposed on the battery.

[0030] As Figure 1 and Figure 2 shown, the cover plate assembly 1 of a battery according to an embodiment of the present utility model includes: a cover plate main body 10, an electrical connection assembly 20, and a first heat-conducting and insulating member 30. The cover plate main body 10 is the main part of the cover plate assembly 1, which mainly plays a role of covering and sealing. The electrical connection assembly 20 is a component of the cover plate assembly 1, which mainly provides electrical connection to realize signal transmission. The first heat-conducting and insulating member 30 is a component of the cover plate assembly 1, which plays a role of heat conduction and insulation, and mainly can quickly conduct the temperature of the conductive column 201 to the cover plate main body 10, which helps to quickly dissipate the heat of the battery.

[0031] As Figure 1 and Figure 2As shown in the figure, the electrical connection component 20 includes: a lead-out piece 200 and a conductive post 201. The lead-out piece 200 is arranged on one side of the cover plate main body 10, the conductive post 201 is connected to the lead-out piece 200, and at least part of the conductive post 201 penetrates through the cover plate main body 10. The lead-out piece 200 and the conductive post 201 are components of the electrical connection component 20. The lead-out piece 200 can mainly ensure the safety of the battery and can effectively convert and transmit electrical energy. The conductive post 201 can mainly connect an external conductor and a bus bar.

[0032] The lead-out piece 200 is arranged on one side of the cover plate main body 10, and the conductive post 201 is connected to the lead-out piece 200. At this time, electrical connection can be carried out between the conductive post 201 and the lead-out piece 200, so that electrical energy can be transmitted. At least part of the conductive post 201 penetrates through the cover plate main body 10, which is convenient for the connection between the conductive post 201 and the lead-out piece 200 on one side of the cover plate main body 10. Among them, the conductive post 201 and the lead-out piece 200 can be welded together by a special welding machine.

[0033] As Figure 1 and Figure 2 As shown in the figure, a first heat-conducting insulating member 30 is sleeved on the conductive post 201. One side of the first heat-conducting insulating member 30 is in contact with the lead-out piece 200 and the conductive post 201, and the other side of the first heat-conducting insulating member 30 is in contact with the cover plate main body 10. The first heat-conducting insulating member 30 is sleeved on the conductive post 201, which is convenient for the installation and setting of the first heat-conducting insulating member 30 and the electrical connection component 20. One side of the first heat-conducting insulating member 30 is in contact with the lead-out piece 200 and the conductive post 201, and the other side of the first heat-conducting insulating member 30 is in contact with the cover plate main body 10. At this time, the first heat-conducting insulating member 30 is used to conduct heat for the conductive post 201 and the lead-out piece 200 with relatively large heat generation inside the battery, and can quickly conduct the temperature of the conductive post 201 and the lead-out piece 200 to the cover plate main body 10, which helps to quickly dissipate the heat of the battery at this time.

[0034] Therefore, the first heat-conducting insulating member 30 is sleeved on the conductive post 201. One side of the first heat-conducting insulating member 30 is in contact with the lead-out piece 200 and the conductive post 201, and the other side is in contact with the cover plate main body 10. In this way, the first heat-conducting insulating member 30 can quickly conduct the temperature of the conductive post 201 and the lead-out piece 200 to the cover plate main body 10, thereby improving the heat-conducting effect of the cover plate assembly 1 and realizing rapid and balanced temperature rise of the battery.

[0035] Specifically, as Figure 1 and Figure 2As shown, the first heat-conducting and insulating member 30 is a single-layer, double-layer or multi-layer film structure. That is to say, the first heat-conducting and insulating member 30 can be a single-layer structure, a double-layer structure or a multi-layer structure, which can improve the diversity of the structure of the first heat-conducting and insulating member 30 and can be selected according to the actual situation. In addition, the first heat-conducting and insulating member 30 is a film structure, and the processing method of the film structure is simpler. Only punching and cutting the required size can be assembled. Compared with the prior art, the processing cost is reduced and resources can be saved at the same time. Among them, when the first heat-conducting and insulating member 30 is double-layer or multi-layer, it can be set as a composite film.

[0036] Among them, as Figure 1 and Figure 2 shown, the first heat-conducting and insulating member 30 is a single-layer film structure, and the first heat-conducting and insulating member 30 is configured as a boron nitride thin film structure member. It should be noted that when the first heat-conducting and insulating member 30 is single-layer, it can be designed as a highly heat-conducting insulating thin film. The highly heat-conducting insulating thin film can quickly conduct the temperature of the lead-out piece 200 and the conductive column 201 to the cover plate main body 10. The highly heat-conducting insulating thin film can be, for example: a boron nitride thin film. The boron nitride thin film structure member has a high resistivity and excellent thermal stability. In this way, the first heat-conducting and insulating member 30 is a highly heat-conducting insulating thin film, which can make the first heat-conducting and insulating member 30 more in line with the actual working conditions.

[0037] In addition, as Figure 3 shown, the first heat-conducting and insulating member 30 is a three-layer film structure. The first heat-conducting and insulating member 30 includes: a base material layer 300, an adhesive layer 301 and a high-temperature resistant heat-conducting layer 302. The adhesive layer 301 and the high-temperature resistant heat-conducting layer 302 are respectively arranged on both sides of the base material layer 300. When the first heat-conducting and insulating member 30 is a three-layer film structure, the first heat-conducting and insulating member 30 is composed of a base material layer 300, an adhesive layer 301 and a high-temperature resistant heat-conducting layer 302. The base material layer 300 is the main part of the first heat-conducting and insulating member 30, which can be mainly used to connect and set other components. The adhesive layer 301 is mainly convenient for fixing. The high-temperature resistant heat-conducting layer 302 can mainly prevent the first heat-conducting and insulating member 30 from being damaged due to the high temperature of the welding of the conductive column 201. The adhesive layer 301 and the high-temperature resistant heat-conducting layer 302 are respectively arranged on both sides of the base material layer 300. The adhesive layer 301 and the high-temperature resistant heat-conducting layer 302 are only two sides of the first heat-conducting and insulating member 30, so their positions can be interchanged.

[0038] Of course, as Figure 1 and Figure 2As shown, the thickness of the first thermally conductive insulating member 30 is a, and the value range of a is: 0 mm < a ≤ 0.7 mm. It should be noted that the thickness a of the first thermally conductive insulating member 30 needs to meet a certain range. Specifically, the thickness a of the first thermally conductive insulating member 30 cannot be too small, that is, less than 0 mm, which does not conform to the actual situation. At the same time, the thickness a of the first thermally conductive insulating member 30 cannot be too large, that is, greater than 0.7 mm. In this case, on the premise that the first thermally conductive insulating member 30 can conduct heat, the thickness a of the first thermally conductive insulating member 30 will be too large, which is not conducive to reducing the total height of the cover plate assembly 1 and will cause an increase in cost. Therefore, the thickness a of the first thermally conductive insulating member 30 is set to 0 - 0.7 mm, which can solve the problem of limited thickness of existing plastic parts. The thickness of the first thermally conductive insulating member 30 is reduced, and at this time the total height of the cover plate assembly 1 is reduced, thereby increasing the available space inside the battery.

[0039] Furthermore, as Figure 1 shown, the conductive post 201 includes: a main body portion 202 and a base 203. The base 203 is connected to the lead-out piece 200. The first thermally conductive insulating member 30 is sleeved on the main body portion 202, and one side of the first thermally conductive insulating member 30 is in contact with the base 203. The main body portion 202 is the main part of the conductive post 201 and can be used to connect and arrange other components. The base 203 is a component of the conductive post 201 and can play a role in support and fixation. The base 203 is connected to the lead-out piece 200, and at this time, the conductive post 201 can be connected to the lead-out piece 200. The first thermally conductive insulating member 30 is sleeved on the main body portion 202, and one side of the first thermally conductive insulating member 30 is in contact with the base 203, so that the first thermally conductive insulating member 30 can be sleeved on the conductive post 201, which is convenient for the installation and setting of the first thermally conductive insulating member 30 and the electrical connection assembly 20. One side of the first thermally conductive insulating member 30 is in contact with the lead-out piece 200 and the conductive post 201, so that the first thermally conductive insulating member 30 can conduct heat for the conductive post 201 and the lead-out piece 200 with relatively large heat generation inside the battery, and can quickly transfer the temperature of the conductive post 201 and the lead-out piece 200 to the cover plate main body 10, which helps to quickly dissipate the heat of the battery.

[0040] In addition, as Figure 1 and Figure 2As shown, the cover assembly 1 of the battery further includes: a seal 40. The seal 40 is sleeved on the main body portion 202. At least part of the first thermally conductive and insulating member 30 is located between the base 203 and the seal 40. The cover body 10 is pressed against the side of the seal 40 away from the first thermally conductive and insulating member 30. The seal 40 is a component of the cover assembly 1 and mainly functions as a seal. The seal 40 is sleeved on the main body portion 202, which facilitates the installation and setting of the seal 40 and the conductive post 201. At least part of the first thermally conductive and insulating member 30 is located between the base 203 and the seal 40, so that the first thermally conductive and insulating member 30 can conduct heat from the conductive post 201 and the lead-out piece 200 with relatively large heat generation inside the battery, and quickly conduct the temperature of the conductive post 201 and the lead-out piece 200 to the cover body 10, which helps the battery to dissipate heat quickly. The cover body 10 is pressed against the side of the seal 40 away from the first insulating member 30. At this time, the seal 40 is located between the cover body 10 and the first insulating member 30, which can ensure that after the cover body 10 is pressed, the seal 40 has a certain compression amount to achieve sealing.

[0041] It should be noted that, as Figure 1 and Figure 2 shown, the cover assembly 1 of the battery further includes: a second thermally conductive and insulating member 50. The electrical connection assembly 20 further includes: a connection terminal 204. The second thermally conductive and insulating member 50 is disposed on the side of the cover body 10 away from the lead-out piece 200. The connection terminal 204 is disposed on the second thermally conductive and insulating member 50. The conductive post 201 passes through the second thermally conductive and insulating member 50 and is electrically connected to the connection terminal 204.

[0042] The second thermally conductive and insulating member 50 is a component of the cover assembly 1 and can quickly conduct the temperature of the conductive post 201 and the lead-out piece 200 to the cover body 10, thereby achieving a rapid and balanced temperature rise of the battery. The connection terminal 204 is a component of the electrical connection assembly 20 and mainly functions as a connection. The second thermally conductive and insulating member 50 is disposed on the side of the cover body 10 away from the lead-out piece 200, that is, the second thermally conductive and insulating member 50 and the lead-out piece 200 are respectively disposed on both sides of the cover body 10. The connection terminal 204 is disposed on the second thermally conductive and insulating member 50, which facilitates the installation and setting of the electrical connection assembly 20 and the second thermally conductive and insulating member 50. The conductive post 201 passes through the second thermally conductive and insulating member 50 and is electrically connected to the connection terminal 204, so that the transmission of electric energy and the connection between the battery and the external circuit can be achieved.

[0043] In addition, as Figure 1 and Figure 2As shown, the gap between the second thermally conductive and insulating member 50 and the outer wall surface of the conductive post 201 is b, and the value range of b is: 0 mm < b ≤ 1 mm. It should be noted that the gap b between the second thermally conductive and insulating member 50 and the outer wall surface of the conductive post 201 needs to meet a certain range. Specifically, the gap b between the second thermally conductive and insulating member 50 and the outer wall surface of the conductive post 201 cannot be too small, that is, less than 0 mm, which is not conducive to the assembly of the conductive post 201 and the second thermally conductive and insulating member 50. At the same time, the gap b between the second thermally conductive and insulating member 50 and the outer wall surface of the conductive post 201 cannot be too large, that is, greater than 1 mm. In this case, the gap b between the second thermally conductive and insulating member 50 and the outer wall surface of the conductive post 201 is too large, which will affect the sealing effect of the seal 40 and may affect the heat conduction effect of the second thermally conductive and insulating member 50, thus affecting the heat dissipation of the battery. Therefore, the gap b between the second thermally conductive and insulating member 50 and the outer wall surface of the conductive post 201 is set to 0 - 1 mm, which can ensure the insulation between the conductive post 201 and the cover body 10 without affecting the compression amount of the seal 40.

[0044] Optionally, as Figure 1 and Figure 2 shown, the second thermally conductive and insulating member 50 is a ceramic structural member or an electrolyte-resistant insulating film structural member. The ceramic structural member or the electrolyte-resistant insulating film structural member has a higher thermal conductivity. By constructing the second thermally conductive and insulating member 50 as a ceramic structural member or an electrolyte-resistant insulating film structural member, the temperature of the conductive post 201 and the connection terminal 204 can be quickly conducted to the cover body 10, thereby realizing rapid and balanced battery temperature rise. At this time, the second thermally conductive and insulating member 50 is more in line with the actual working conditions. Among them, the electrolyte-resistant insulating film structural member can be a PI film.

[0045] It should be noted that the assembly method of the cover assembly 1 is as follows: after the conductive post 201 and the lead-out piece 200 are welded, the first thermally conductive and insulating member 30, the seal 40, the cover body 10, the second thermally conductive and insulating member 50, and the connection terminal 204 are assembled in sequence, and after the assembly is completed, it is pressed and riveted.

[0046] The battery according to the embodiment of the present invention includes the cover assembly 1 of the battery described in the above embodiment.

[0047] The electrical equipment according to the embodiment of the present invention includes the battery described in the above embodiment.

[0048] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0049] In the description of the present utility model, the "first feature" and "second feature" may include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more. In the description of the present utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. In the description of the present utility model, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature.

[0050] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example.

[0051] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A battery cover assembly (1), characterized in that: include: Cover plate body (10); An electrical connection component (20), the electrical connection component (20) comprising: a lead-out piece (200) and a conductive column (201), the lead-out piece (200) being arranged on one side of the cover plate body (10), the conductive column (201) being connected to the lead-out piece (200), and the conductive column (201) at least partially passing through the cover plate body (10); A first heat-conducting insulating member (30), wherein the first heat-conducting insulating member (30) is sleeved on the conductive column (201), one side of the first heat-conducting insulating member (30) is in contact with the lead-out plate (200) and the conductive column (201), and the other side of the first heat-conducting insulating member (30) is in contact with the cover plate body (10).

2. The battery cover assembly (1) according to claim 1, characterized in that: The first heat-conducting insulating member (30) is a single-layer, double-layer or multi-layer film structure.

3. The battery cover assembly (1) according to claim 2, characterized in that: The first heat-conducting insulating component (30) is a single-layer film-like structure, and the first heat-conducting insulating component (30) is constructed as a boron nitride thin film structural component.

4. The battery cover assembly (1) according to claim 2, characterized in that: The first heat-conducting insulating member (30) is a three-layer film-like structure, comprising: a base material layer (300), a glue layer (301) and a high-temperature resistant heat-conducting layer (302), wherein the glue layer (301) and the high-temperature resistant heat-conducting layer (302) are respectively arranged on both sides of the base material layer (300).

5. The battery cover assembly (1) according to claim 2, characterized in that: The thickness of the first heat-conducting insulating member (30) is a, and the value range of a is: 0 mm < a ≤ 0.7 mm.

6. The battery cover assembly (1) according to claim 1, characterized in that: The conductive column (201) comprises: a main body (202) and a base (203), wherein the base (203) is connected to the lead-out plate (200), and the first thermally conductive insulating member (30) is sleeved on the main body (202), and one side of the first thermally conductive insulating member (30) is in contact with the base (203).

7. The battery cover assembly (1) according to claim 6, characterized in that: Also includes: A sealing member (40), wherein the sealing member (40) is sleeved on the main body (202), at least a portion of the first heat-conducting insulating member (30) is located between the base (203) and the sealing member (40), and the cover body (10) is pressed against a side of the sealing member (40) away from the first heat-conducting insulating member (30).

8. The battery cover assembly (1) according to claim 1, characterized in that: Also includes: The second thermally conductive insulating member (50) and the electrical connection assembly (20) further include: a connection terminal (204); the second thermally conductive insulating member (50) is arranged on a side of the cover plate body (10) away from the lead-out plate (200); the connection terminal (204) is arranged on the second thermally conductive insulating member (50); and the conductive column (201) passes through the second thermally conductive insulating member (50) and is electrically connected to the connection terminal (204).

9. The battery cover assembly (1) according to claim 8, characterized in that: The gap between the second heat-conducting insulating member (50) and the outer wall surface of the conductive column (201) is b, and the value range of b is: 0mm<b≤1mm.

10. The battery cover assembly (1) according to claim 8, characterized in that: The second heat-conducting insulating component (50) is a ceramic structural component or an electrolyte-resistant insulating film structural component.

11. A battery, characterized in that: include: A cover plate assembly (1) for a battery according to any one of claims 1 to 10.

12. An electrical equipment, characterized in that: include: The battery as claimed in claim 11.

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