CN211507691U - Battery cover plate and battery - Google Patents
Battery cover plate and battery Download PDFInfo
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- CN211507691U CN211507691U CN202020227143.7U CN202020227143U CN211507691U CN 211507691 U CN211507691 U CN 211507691U CN 202020227143 U CN202020227143 U CN 202020227143U CN 211507691 U CN211507691 U CN 211507691U
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- cover plate
- pole
- plate body
- battery
- thermal deformation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model relates to a battery technology field especially relates to a battery cover plate and battery. The battery cover plate comprises a cover plate body, a first pole structure and a thermal deformation sheet; the first pole structure is mutually insulated from the cover plate body and comprises a first pole penetrating through the cover plate body and a first conductive block electrically connected with the first pole, wherein the first conductive block is provided with an installation section fixedly connected with the first pole and an overhanging section extending to one side of the first pole; and the thermal deformation sheet is arranged on the cover plate body and is positioned below the overhanging section, and can be electrically contacted with the overhanging section after being heated and deformed, so that a passage is formed between the first pole and the cover plate body. The thermal deformation piece is far away from the first pole, the influence of heat of the first pole on the thermal deformation piece is reduced, the temperature in the battery shell is more accurately induced by the thermal deformation piece, and meanwhile, the thermal deformation piece is not easy to collide when penetrating through the first pole and installing the first pole block because the thermal deformation piece is far away from the first pole.
Description
Technical Field
The utility model relates to a battery technology field especially relates to a battery cover plate and battery.
Background
At present, for pure electric vehicles and hybrid electric vehicles using electric energy, a power battery is the main energy carrier and power source of these vehicles, the safety problem is not negligible, and the common problem is that the battery is thermally out of control due to overheating.
In the prior art, a pressure sensitive device (such as an explosion-proof turnover valve) is usually arranged on a battery cover plate, and when the air pressure in a battery shell reaches a certain value, the pressure sensitive device per se deforms and then short circuits the battery to release the energy of the battery, so that thermal runaway is prevented. However, the pressure sensitive device needs to be turned over within a specific pressure range, which has high requirements on the processing technology of the pressure sensitive device and the assembly of the battery, such as poor control of the processing technology and poor consistency of the turning valve, and further such as the occurrence of cold joint and missing joint in the laser welding of the turning valve in the assembly of the battery, the cold joint and the missing joint can cause that the turning valve cannot be turned over within the specified pressure range, and safety accidents are caused. The battery cover plate is provided with a heat sensitive device, so that the problems can be solved, wherein the attempt of arranging the heat deformation sheet on the battery cover plate achieves better technical effects, but the mode of adopting the heat deformation sheet has technical problems in application.
According to the battery adopting the thermal deformation sheet to prevent thermal runaway in the prior art, the negative pole column of the battery cover plate is provided with the conductive block, the conductive block is provided with the installation section directly connected with the negative pole column, the thermal deformation piece is arranged on the plate body of the battery cover plate below the installation section, and under the condition that the temperature in the battery rises, the thermal deformation piece can be communicated with the cover plate and the negative pole column through deformation to realize short circuit and release the energy of the battery. However, in the actual use process, the problem that the thermal deformation sheet is easy to open by mistake and affects the normal use is found.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a battery cover plate to solve among the prior art the easy mistake of the heat altered shape piece on the battery cover plate and open and influence the problem of battery security. And simultaneously, the utility model aims at still providing a battery, adopted above-mentioned battery apron to solve the poor problem of battery security among the prior art.
For realizing the above purpose, the utility model discloses battery apron's technical scheme as follows:
a battery cover plate comprising:
a cover plate body;
the first pole structure is mutually insulated from the cover plate body and comprises a first pole penetrating through the cover plate body and a first conductive block electrically connected with the first pole, wherein the first conductive block is provided with an installation section fixedly connected with the first pole and an overhanging section extending to one side of the first pole;
and the thermal deformation sheet is arranged on the cover plate body and is positioned below the overhanging section, and can be electrically contacted with the overhanging section after being heated and deformed, so that a passage is formed between the first pole and the cover plate body.
The utility model has the advantages that: the thermal deformation sheet is arranged on the cover plate body below the overhanging section of the first conducting block, so that the thermal deformation sheet is far away from the first pole, the influence of heat generated by the first pole on the thermal deformation sheet is greatly reduced, the accuracy of the thermal deformation sheet in sensing the temperature in the battery shell is improved, and the thermal deformation sheet can be effectively prevented from being opened by mistake; meanwhile, the thermal deformation sheet is far away from the first pole, so that the thermal deformation sheet is not easy to collide when the first pole is penetrated and the first conductive block is installed, and the subsequent use of the thermal deformation sheet is more reliable.
In order to achieve the above purpose, the utility model discloses the technical scheme of battery as follows:
a battery comprises a shell and a battery cover plate arranged at the upper end of the shell, wherein a battery core is arranged in the shell, and the battery cover plate comprises:
a cover plate body;
the first pole structure is mutually insulated from the cover plate body and comprises a first pole penetrating through the cover plate body and a first conductive block electrically connected with the first pole, wherein the first conductive block is provided with an installation section fixedly connected with the first pole and an overhanging section extending to one side of the first pole;
and the thermal deformation sheet is arranged on the cover plate body and is positioned below the overhanging section, and can be electrically contacted with the overhanging section after being heated and deformed, so that a passage is formed between the first pole and the cover plate body.
The utility model has the advantages that: the thermal deformation sheet is arranged on the cover plate body below the overhanging section of the first conducting block, so that the thermal deformation sheet is far away from the first pole, the influence of heat generated by the first pole on the thermal deformation sheet is greatly reduced, the accuracy of the thermal deformation sheet in sensing the temperature in the battery shell is improved, and the thermal deformation sheet can be effectively prevented from being opened by mistake; meanwhile, the thermal deformation sheet is far away from the first pole, so that the thermal deformation sheet is not easy to collide when the first pole is penetrated and the first conductive block is installed, and the subsequent use of the thermal deformation sheet is more reliable.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the battery of the present invention;
fig. 2 is a top view of the battery of the present invention;
FIG. 3 is a cross-sectional view at C-C of FIG. 2;
FIG. 4 is an enlarged view at A in FIG. 3;
FIG. 5 is an enlarged view at B in FIG. 3;
in the figure: 1-cover plate body, 2-negative pole column, 3-negative pole column conducting block, 4-safety valve, 5-resistance block, 6-positive pole column conducting block, 7-positive pole column, 8-liquid injection hole, 9-bimetallic strip, 10-insulation plate, 11-installation hole, 12-insulation sleeve, 13-avoidance hole, 14-shell and 15-battery cover plate.
Detailed Description
In the prior art, a conductive block is arranged on a negative pole column of a battery cover plate, the conductive block is provided with an installation section directly connected with the negative pole column, a thermal deformation piece is arranged below the installation section and on a plate body of the battery cover plate, and under the condition that the temperature in the battery rises, the thermal deformation piece can be deformed to communicate the cover plate with the negative pole column to realize short circuit and release the energy of the battery. The inventor researches and discovers that in the battery cover plate in the prior art, because the negative pole column is an adapter piece for transferring electric energy in the battery outwards, the battery cover plate can generate heat, the thermal deformation piece is directly positioned below the conductive block installation section, the position of the thermal deformation piece is close to the negative pole column, and the narrow space of the position close to the negative pole column is easy to gather heat generated on the negative pole column, the thermal deformation piece is easily influenced by the heat generated on the negative pole column, the temperature in the battery shell can not be accurately induced, so that under many conditions, the thermal deformation piece can be mistakenly opened, and the normal use of the battery is influenced. In addition, the thermal deformation sheet is located at a position close to the pole, and when the pole is penetrated into the battery cover plate and the conductive block is installed, the thermal deformation sheet is easily touched by mistake, so that the stable deformation of the thermal deformation sheet is influenced, and the using effect of the thermal deformation sheet is unreliable.
The utility model aims at providing a battery cover plate and battery to solve above technical problem.
For realizing the above purpose, the utility model discloses battery apron's technical scheme as follows:
a battery cover plate comprising:
a cover plate body;
the first pole structure is mutually insulated from the cover plate body and comprises a first pole penetrating through the cover plate body and a first conductive block electrically connected with the first pole, wherein the first conductive block is provided with an installation section fixedly connected with the first pole and an overhanging section extending to one side of the first pole; and the thermal deformation sheet is arranged on the cover plate body and is positioned below the overhanging section, and can be electrically contacted with the overhanging section after being heated and deformed, so that a passage is formed between the first pole and the cover plate body.
The utility model has the advantages that: the thermal deformation sheet is arranged on the cover plate body below the overhanging section of the first conducting block, so that the thermal deformation sheet is far away from the first pole, the influence of heat generated by the first pole on the thermal deformation sheet is greatly reduced, the accuracy of the thermal deformation sheet in sensing the temperature in the battery shell is improved, and the thermal deformation sheet can be effectively prevented from being opened by mistake; meanwhile, the thermal deformation sheet is far away from the first pole, so that the thermal deformation sheet is not easy to collide when the first pole is penetrated and installed and the first pole block is installed, and the subsequent use of the thermal deformation sheet is more reliable.
Furthermore, a mounting hole is formed in the cover plate body below the overhanging section, and the thermal deformation sheet is mounted in the mounting hole. Through seting up the mounting hole, provide accommodation space for the heat altered shape piece, compact structure.
Furthermore, the mounting hole is a through hole penetrating through the cover plate body, and the size of the thermal deformation sheet is consistent with that of the mounting hole so as to plug the through hole. The mounting hole is provided with the through hole, the thermal deformation sheet can directly sense the temperature in the battery shell, the metal sheet can be more reliably opened, the thermal deformation sheet is arranged to be consistent with the size of the through hole to block the through hole, so that the electrolyte can be prevented from splashing out, and the sealing property can be improved; meanwhile, when the battery has safety accidents such as overcharge and short circuit, a large amount of gas can be generated, the gas can promote the thermal deformation sheet to move upwards under the action of high pressure through the through holes, and then the thermal deformation sheet is in electrical contact with the overhanging section of the first conductive block, so that the safety is further improved. That is, when the mounting hole is provided as a through hole, the thermal deformation sheet can be electrically contacted with the overhanging section under the dual actions of heat and air pressure, so that a passage is formed between the first pole and the cover plate body.
Furthermore, the first pole is insulated between the position penetrating through the cover plate body and the cover plate body, an insulating plate is arranged between the first conducting block and the cover plate body, and a position of the insulating plate, which is right opposite to the thermal deformation sheet, is provided with a avoidance hole. By arranging the insulating plate and arranging the avoidance hole on the insulating plate, the insulation between the first conductive block and the cover plate body is ensured, and the contact part of the thermal deformation sheet and the first conductive block is also ensured, so that the thermal deformation sheet is convenient to contact with the first conductive block after being deformed; by it is under the condition that sets up the mounting hole, the insulation board can directly laminate and set up between first conducting block and apron plate body, compact structure.
Furthermore, the battery cover plate also comprises a second pole column structure which is electrically connected with the cover plate body and comprises a second pole column which is arranged on the cover plate body in a penetrating way and a second conducting block which is electrically connected with the second pole column.
And then optimize the form of second pole structure specifically, the second pole is insulating between the position of wearing to establish the apron plate body and the apron plate body, is provided with the resistance piece between second conducting block and the apron plate body, and the second conducting block of second pole structure passes through the resistance piece and is connected with the apron plate body electricity. Therefore, the first pole is conducted with the cover plate body, and more battery energy can be released when the first pole is conducted with the second pole through the resistance block, and the safety of the battery is further improved.
Further, an insulating sleeve is arranged between the first pole and/or the second pole and the cover plate body, and the first pole and/or the second pole are/is insulated from the cover plate body at the penetrating position through the insulating sleeve. The insulating sleeve can realize insulation between the pole and the cover plate body, and seals the penetrating position of the pole on the cover plate body, so that the whole structure is simple.
Further, the overhanging section of the first conductive block faces the direction of the second pole column. The overhanging section is arranged towards the second pole column, so that the overhanging section is positioned in the space above the cover plate body between the first pole column and the second pole column, the space outside the edge of the cover plate body is not occupied, and the size of the cover plate is small in occupied space.
Further, the thermal deformation sheet is a bimetal sheet, and the thermal expansion coefficient of the metal sheet of the bimetal sheet facing the inside of the battery case is greater than that of the metal sheet facing the outside of the battery. The bimetallic strip has the characteristic of accurate temperature control, and the reliability of opening can be further ensured.
In order to achieve the above purpose, the utility model discloses the technical scheme of battery as follows:
a battery comprises a shell and a battery cover plate arranged at the upper end of the shell, wherein a battery core is arranged in the shell, and the battery cover plate comprises:
a cover plate body;
the first pole structure is mutually insulated from the cover plate body and comprises a first pole penetrating through the cover plate body and a first conductive block electrically connected with the first pole, wherein the first conductive block is provided with an installation section fixedly connected with the first pole and an overhanging section extending to one side of the first pole;
and the thermal deformation sheet is arranged on the cover plate body and is positioned below the overhanging section, and can be electrically contacted with the overhanging section after being heated and deformed, so that a passage is formed between the first pole and the cover plate body.
The utility model has the advantages that: the thermal deformation sheet is arranged on the cover plate body below the overhanging section of the first conducting block, so that the thermal deformation sheet is far away from the first pole, the influence of heat generated by the first pole on the thermal deformation sheet is greatly reduced, the accuracy of the thermal deformation sheet in sensing the temperature in the battery shell is improved, and the thermal deformation sheet can be effectively prevented from being opened by mistake; meanwhile, the thermal deformation sheet is far away from the first pole, so that the thermal deformation sheet is not easy to collide when the first pole is penetrated and installed and the first pole block is installed, and the subsequent use of the thermal deformation sheet is more reliable.
Furthermore, a mounting hole is formed in the cover plate body below the overhanging section, and the thermal deformation sheet is mounted in the mounting hole. Through seting up the mounting hole, provide accommodation space for the heat altered shape piece, compact structure.
Furthermore, the mounting hole is a through hole penetrating through the cover plate body, and the size of the thermal deformation sheet is consistent with that of the mounting hole so as to plug the through hole. The mounting hole is provided with the through hole, the thermal deformation sheet can directly sense the temperature in the battery shell, the metal sheet can be more reliably opened, the thermal deformation sheet is arranged to be consistent with the size of the through hole to block the through hole, so that the electrolyte can be prevented from splashing out, and the sealing property can be improved; meanwhile, when the battery has safety accidents such as overcharge and short circuit, a large amount of gas can be generated, the gas can promote the thermal deformation sheet to move upwards under the action of high pressure through the through holes, and then the thermal deformation sheet is in electrical contact with the overhanging section of the first conductive block, so that the safety is further improved. That is, when the mounting hole is provided as a through hole, the thermal deformation sheet can be electrically contacted with the overhanging section under the dual actions of heat and air pressure, so that a passage is formed between the first pole and the cover plate body.
Furthermore, the first pole is insulated between the position penetrating through the cover plate body and the cover plate body, an insulating plate is arranged between the first conducting block and the cover plate body, and a position of the insulating plate, which is right opposite to the thermal deformation sheet, is provided with a avoidance hole. By arranging the insulating plate and arranging the avoidance hole on the insulating plate, the insulation between the first conductive block and the cover plate body is ensured, and the contact part of the thermal deformation sheet and the first conductive block is also ensured, so that the thermal deformation sheet is convenient to contact with the first conductive block after being deformed; by it is under the condition that sets up the mounting hole, the insulation board can directly laminate and set up between first conducting block and apron plate body, compact structure.
Furthermore, the battery cover plate also comprises a second pole column structure which is electrically connected with the cover plate body and comprises a second pole column which is arranged on the cover plate body in a penetrating way and a second conducting block which is electrically connected with the second pole column.
And then optimize the form of second pole structure specifically, the second pole is insulating between the position of wearing to establish the apron plate body and the apron plate body, is provided with the resistance piece between second conducting block and the apron plate body, and the second conducting block of second pole structure passes through the resistance piece and is connected with the apron plate body electricity. Therefore, the first pole is conducted with the cover plate body, and more battery energy can be released when the first pole is conducted with the second pole through the resistance block, and the safety of the battery is further improved.
Further, an insulating sleeve is arranged between the first pole and/or the second pole and the cover plate body, and the first pole and/or the second pole are/is insulated from the cover plate body at the penetrating position through the insulating sleeve. The insulating sleeve can realize insulation between the pole and the cover plate body, and seals the penetrating position of the pole on the cover plate body, so that the whole structure is simple.
Further, the overhanging section of the first conductive block faces the direction of the second pole column. The overhanging section is arranged towards the second pole column, so that the overhanging section is positioned in the space above the cover plate body between the first pole column and the second pole column, the space outside the edge of the cover plate body is not occupied, and the size of the cover plate is small in occupied space.
Further, the thermal deformation sheet is a bimetal sheet, and the thermal expansion coefficient of the metal sheet of the bimetal sheet facing the inside of the battery case is greater than that of the metal sheet facing the outside of the battery. The bimetallic strip has the characteristic of accurate temperature control, and the reliability of opening can be further ensured.
The following describes embodiments of the present invention with reference to the accompanying drawings.
The embodiment 1 of the battery of the present invention, as shown in fig. 1-3, the battery includes a housing 14 and a battery cover plate 15, a negative pole post 2 and a positive pole post 7 are arranged on a cover plate body 1 of the battery cover plate 15, and the negative pole post 2 and the positive pole post 7 respectively constitute a first pole post and a second pole post. The negative pole post 2 and the positive pole post 7 are respectively provided with a negative pole post conducting block 3 and a positive pole post conducting block 6, and the negative pole post conducting block 3 and the positive pole post conducting block 6 respectively form a first conducting block and a second conducting block. Wherein negative pole post conducting block 3 is including being used for with the installation section of negative pole post 2 fixed connection to and keep away from the overhanging section of negative pole post 2, install the thermal deformation piece on the apron plate body 1 of overhanging section below, the thermal deformation piece adopts bimetallic strip 9 in this embodiment, bimetallic strip 9 can produce after being heated and warp and overhang section electrical contact, switches on negative pole post 2 and positive post 7, realizes opening. The utility model discloses set up bimetallic strip 9 in the below of 3 overhanging sections of negative pole post conducting block for bimetallic strip 9 is far away from negative pole post 2, and the produced heat of 7 negative pole posts that have significantly reduced has improved the accuracy of bimetallic strip 9 response battery case internal temperature to bimetallic strip 9's influence, can effectively prevent bimetallic strip 9's mistake from opening.
As shown in fig. 4, an insulating sleeve 12 is disposed between the negative pole post 2 and the cover plate body 1, an insulating plate 12 is disposed between the negative pole post conductive block 3 and the cover plate body 1, and the arrangement of the insulating sleeve 12 and the insulating plate 10 better ensures that the negative pole post 2 and the negative pole post conductive block 3 are insulated from the cover plate body in a normal state of the battery. An avoiding hole 13 corresponding to the bimetallic strip 9 is formed in the insulating plate 10 below the overhanging section of the negative pole conductive block 3, so that the bimetallic strip 9 can be conveniently in electric contact with the negative pole conductive block 3 after being heated and deformed.
Specifically, in this embodiment, the mounting hole 11 has been seted up on the apron plate body 1, and the bimetallic strip 9 is installed in the mounting hole 11, and the mounting hole 11 is the thru hole that runs through apron plate body 1 from top to bottom, and the bimetallic strip can direct contact the gas in the battery casing like this, and the temperature in the response battery casing is heated and is opened and can be more reliable. Moreover, the size of the bimetallic strip 9 is consistent with that of the mounting hole 11, so that the mounting hole 11 can be plugged, and sealing is guaranteed.
As shown in fig. 5, in this embodiment, an insulating sleeve 12 is also disposed between the positive post 7 and the cover plate body 1, a resistance block 5 is disposed between the positive post conductive block 6 and the cover plate body 1, and the insulating sleeve 12 prevents direct electrical connection between the positive post and the cover plate body 1, so that indirect electrical connection is formed between the positive post conductive block 6 and the resistance block 5 and the cover plate body 1, and the resistance block 5 is disposed to reduce the potential on the cover plate body 1 relative to the positive post 7, thereby improving the safety.
In this embodiment, in order to further improve the safety of the battery and the convenience of liquid injection, the cover plate body 1 is further provided with a safety valve 4 and a liquid injection hole 8.
The utility model discloses embodiment 2 of battery, lie in with embodiment 1's difference, the thermal deformation piece is for having stiff end and the rectangular shape metalwork of overhang, and the overhang end can the perk switch on with negative pole post conducting block after being heated, and the mounting hole is rectangular shape this moment, and suits with the shape and the size of rectangular shape metalwork. Thus, compared with a bimetallic strip, the cost is lower.
The utility model discloses embodiment 3 of battery, lie in with embodiment 1's difference, the blind hole of mounting hole for having the diapire, can play the guard action to the heat deformation piece through the bottom of mounting hole like this, avoid electrolyte to contact the heat deformation piece and produce the corruption to the heat deformation piece, guaranteed the reliability of the hot sheetmetal of long-term use.
The utility model discloses embodiment 4 of battery, the difference with embodiment 1 lies in, no longer sets up the mounting hole, and directly installs the upper surface at the apron plate body with the heat altered shape piece, and the insulation board is fixed on the conducting block this moment. Therefore, the processing amount of the cover plate body can be reduced, and the thermal deformation sheet is arranged on the wider upper surface of the cover plate body and is easy to install. Of course, in other embodiments, the insulating plate may be fixed on the cover plate body or the insulating plate with a larger thickness may be directly located between the cover plate body and the first conductive block, and the avoiding hole in the insulating plate not only avoids deformation of the thermal deformation sheet, but also directly accommodates the thermal deformation sheet therein.
The utility model discloses embodiment 5 of battery, the difference with embodiment 1 lies in, does not adopt insulating cover to realize the insulation between negative pole post and the apron plate body and between negative pole post and the apron plate body, and adopts the mode that sets up insulating coating on utmost point post.
The utility model discloses embodiment 6 of battery, lie in with embodiment 1's difference, can not set up the resistance piece, and make the anodal post conducting block directly be connected with the apron plate body electricity or make the anodal post directly be connected with the apron plate body electricity.
In other embodiments, the conductive block with the overhanging section may also be a positive post conductive block, in which case the resistance block is disposed between the negative post conductive block and the cover plate body.
The utility model discloses battery cover plate's embodiment: specifically, the specific structure of the battery cover plate is the same as that of the battery cover plate used in the above battery embodiment, and is not described again.
Claims (10)
1. A battery cover plate, comprising:
a cover plate body;
the first pole structure is mutually insulated from the cover plate body and comprises a first pole penetrating through the cover plate body and a first conductive block electrically connected with the first pole, wherein the first conductive block is provided with an installation section fixedly connected with the first pole and an overhanging section extending to one side of the first pole;
and the thermal deformation sheet is arranged on the cover plate body and is positioned below the overhanging section, and can be electrically contacted with the overhanging section after being heated and deformed, so that a passage is formed between the first pole and the cover plate body.
2. The battery cover plate according to claim 1, wherein a mounting hole is formed in the cover plate body below the overhanging section, and the thermally deformable piece is mounted in the mounting hole.
3. The battery cover plate according to claim 2, wherein the mounting holes are through holes penetrating through the cover plate body, and the thermally deformable plate has a size corresponding to the size of the mounting holes to block the through holes.
4. The battery cover plate according to any one of claims 1 to 3, wherein the first pole is insulated from the cover plate body at a position where the first pole penetrates through the cover plate body, an insulating plate is arranged between the first conductive block and the cover plate body, and an avoiding hole is formed in a position of the insulating plate, which faces the thermal deformation sheet.
5. The battery cover plate according to any one of claims 1 to 3, further comprising a second pole structure electrically connected to the cover plate body, and including a second pole penetrating the cover plate body, and a second conductive block electrically connected to the second pole.
6. The battery cover plate according to claim 5, wherein the second electrode post is insulated from the cover plate body at a position penetrating through the cover plate body, a resistor block is arranged between the second conductive block and the cover plate body, and the second conductive block of the second electrode post structure is electrically connected with the cover plate body through the resistor block.
7. The battery cover plate according to claim 6, wherein an insulating sleeve is arranged between the first pole and/or the second pole and the cover plate body, and the insulating sleeve is used for realizing the insulation between the first pole and/or the second pole and the cover plate body at the penetrating position.
8. The battery cover plate according to any one of claims 1 to 3, wherein the overhanging section of the first conductive block faces in the direction of the second pole.
9. The battery cover plate according to any one of claims 1 to 3, wherein the thermally deformable strip is a bimetal strip, and the coefficient of thermal expansion of the bimetal strip toward the inside of the battery case is greater than that of the metal strip toward the outside of the battery.
10. A battery, comprising a casing and a battery cover plate arranged at the upper end of the casing, wherein a battery core is arranged in the casing, and the battery cover plate is as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020227143.7U CN211507691U (en) | 2020-02-28 | 2020-02-28 | Battery cover plate and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020227143.7U CN211507691U (en) | 2020-02-28 | 2020-02-28 | Battery cover plate and battery |
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| Publication Number | Publication Date |
|---|---|
| CN211507691U true CN211507691U (en) | 2020-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020227143.7U Active CN211507691U (en) | 2020-02-28 | 2020-02-28 | Battery cover plate and battery |
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| CN (1) | CN211507691U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022217884A1 (en) * | 2021-04-16 | 2022-10-20 | 湖北亿纬动力有限公司 | Battery top cover and battery |
| WO2023070970A1 (en) * | 2021-10-29 | 2023-05-04 | 宁德时代新能源科技股份有限公司 | End cover assembly, battery cell, battery, and power consuming device |
-
2020
- 2020-02-28 CN CN202020227143.7U patent/CN211507691U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022217884A1 (en) * | 2021-04-16 | 2022-10-20 | 湖北亿纬动力有限公司 | Battery top cover and battery |
| WO2023070970A1 (en) * | 2021-10-29 | 2023-05-04 | 宁德时代新能源科技股份有限公司 | End cover assembly, battery cell, battery, and power consuming device |
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