CN218334028U - Power battery top cover structure and power battery - Google Patents
Power battery top cover structure and power battery Download PDFInfo
- Publication number
- CN218334028U CN218334028U CN202222325668.6U CN202222325668U CN218334028U CN 218334028 U CN218334028 U CN 218334028U CN 202222325668 U CN202222325668 U CN 202222325668U CN 218334028 U CN218334028 U CN 218334028U
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- pole
- mounting hole
- power battery
- opening
- top cover
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- 239000003292 glue Substances 0.000 claims description 13
- 239000012212 insulator Substances 0.000 claims description 7
- 230000035515 penetration Effects 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000007599 discharging Methods 0.000 abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 8
- 238000009413 insulation Methods 0.000 description 7
- 238000003466 welding Methods 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
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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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- Connection Of Batteries Or Terminals (AREA)
Abstract
The application provides a power battery top cap structure and power battery relates to power battery technical field. Power battery top cap structure includes: the first insulating part is provided with a first opening and a second opening which are distributed along the left-right direction; a top cover member disposed below the first insulating member, the top cover member having a first mounting hole corresponding to the first opening and a second mounting hole corresponding to the second opening; and the electrode assembly is provided with a first pole column piece and a second pole column piece, the first pole column piece penetrates through the first opening and extends to the first mounting hole, and is in insulated contact with the first mounting hole, and the second pole column piece penetrates through the second opening and extends to the second mounting hole, and is in insulated contact with the second mounting hole. The charging and discharging of the power battery can be realized, the parts of the power battery are simplified, and the production procedures are reduced.
Description
Technical Field
The application relates to the technical field of power batteries, in particular to a power battery top cover structure and a power battery.
Background
The lithium ion battery has the advantages of high energy density, high power density, more recycling times, long storage time and the like, so the lithium ion battery is widely used on portable electronic equipment such as mobile phones, digital cameras, portable computers and the like; and has wide application prospect in the aspects of electric vehicles such as electric automobiles and electric bicycles, large and medium-sized electric equipment such as energy storage facilities and the like.
With the increasing perfection of the electric automobile technology, the electric automobile is closer to the daily life of people. However, the current lithium ion battery is complex in composition, and has a power battery top cover structure, a power battery pole coil, an electric connection adapter sheet, an inner sealing ring, an inner insulating sheet, a power battery top cover structure, a power battery upper end plate, an outer sealing ring, an outer insulating sheet, a pole and the like, so that the production process is also complex.
SUMMERY OF THE UTILITY MODEL
The application aims at providing a power battery top cover structure and a power battery, which simplify the parts of the power battery and reduce the production processes.
In order to achieve the purpose, the following technical scheme is adopted in the application:
in a first aspect, the present application provides a power battery top cover structure, including: the first insulating part is provided with a first opening and a second opening which are distributed along the left-right direction; a top cover disposed below the first insulator, the top cover having a first mounting hole corresponding to the first opening and a second mounting hole corresponding to the second opening; and the electrode assembly is provided with a first pole post piece and a second pole post piece, the first pole post piece penetrates through the first opening and extends to the first mounting hole, and is in insulated contact with the first mounting hole, and the second pole post piece penetrates through the second opening and extends to the second mounting hole, and is in insulated contact with the second mounting hole.
In the process of realizing, first utmost point post spare wears to locate first trompil and extends to the first mounting hole of top cap spare, can realize the insulation of the upper surface of first utmost point post spare and top cap spare through first insulating part, first utmost point post spare carries out insulation contact with first mounting hole simultaneously, guarantee overall structure's insulating nature, second utmost point post spare wears to locate the second trompil and extends to the second mounting hole of top cap spare, can realize the insulation of the upper surface of second utmost point post spare and top cap spare through first insulating part, second utmost point post spare carries out insulation contact with the second mounting hole simultaneously, guarantee overall structure's insulating nature, and first utmost point post spare is connected with the first utmost point ear of pole book subassembly, second utmost point post spare is connected with the second utmost point ear of pole book subassembly, thereby realize power battery's charge-discharge, it has simplified power battery's spare part, production processes has been reduced.
In some embodiments, the first pole member includes a first pole body configured to be distributed in a front-rear direction and a second pole body configured to be distributed in an up-down direction, and the second pole body is connected below the first pole body. First utmost point cylinder is connected with the second utmost point cylinder, through carrying out bending deformation with first utmost point post spare, makes things convenient for first utmost point cylinder and aluminium to arrange to weld.
In some embodiments, the second pole piece includes a third pole piece and a fourth pole piece, the third pole piece is configured to be distributed along the front-back direction, the fourth pole piece is configured to be distributed along the up-down direction, and the fourth pole piece is connected below the third pole piece. The third pole cylinder is connected with the fourth pole cylinder, and through carrying out bending deformation with the second pole cylinder, makes things convenient for the third pole cylinder to weld with the aluminium row.
In some embodiments, the power battery top cover structure further includes two insulating glues, and the two insulating glues are respectively located in the first mounting hole and the second mounting hole, so as to be used for insulating the first pole column piece from the first mounting hole and insulating the second pole column piece from the second mounting hole.
In some embodiments, the insulating glue is provided with a mating hole configured for the passage of the first or second pole piece.
In some embodiments, the power cell top cap structure further includes a second insulating member disposed on a side of the top cap member away from the first insulating member. By providing the second insulator below the top cover member, insulation of the pole roll assembly from the top cover member can be ensured.
In some embodiments, the second insulator is provided with a third opening and a fourth opening, the third opening is located below the first mounting hole, and the fourth opening is located below the second mounting hole. The third opening and the fourth opening are formed in the second insulating part, so that the first pole column part can be connected with the first pole lug, and the second pole column part can be connected with the second pole lug.
In a second aspect, the present application further provides a power battery, including: the electrode roll assembly is provided with a first electrode lug and a second electrode lug; and the power battery top cover structure is arranged above the pole roll assembly, a first pole piece of the power battery top cover structure is configured to be electrically connected with the first pole lug, and a second pole piece of the power battery top cover structure is configured to be electrically connected with the second pole lug.
The power battery provided in the embodiment of the second aspect of the present application includes the power battery top cover structure described in the technical solution of the first aspect, so that all technical effects of the above embodiments are achieved, and details are not described herein.
In some embodiments, the first pole post is welded or bonded to the first tab and the second pole post is welded or bonded to the second tab.
In some embodiments, the power battery further comprises a battery housing configured to house the pole roll assembly and a structure for housing at least a portion of the power battery top cap structure. Set up in battery case's inside through utmost point book subassembly, can form the protection to utmost point book subassembly, cooperate with power battery top cap structure simultaneously, realize the sealed of extremely rolling up the subassembly, guarantee switching on and insulating of extremely rolling up the subassembly.
Additional features and advantages of the present application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the present application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for a user of ordinary skill in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is an exploded schematic view of a top cover structure of a power battery disclosed in an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a power battery disclosed in an embodiment of the present application.
Fig. 3 is an exploded schematic view of a power battery disclosed in an embodiment of the present application.
Fig. 4 is a cross-sectional view of a power battery disclosed in an embodiment of the present application.
Reference numerals
100. A power battery top cover structure; 101. a first insulating member; 102. a roof member; 103. a first pole piece; 104. a second pole piece; 105. a second insulating member; 106. insulating glue; 200. a pole roll assembly; 201. a first tab; 202. a second tab; 300. a battery case.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments obtained by a user of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, it should be noted that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are usually placed when the products of the present invention are used, and are only used for convenience of description and simplification of the description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed and operated in specific orientations, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case to a user of ordinary skill in the art.
Examples
As shown in fig. 1, in a first aspect, the present application provides a power battery top cover structure 100, where the power battery top cover structure 100 is applicable to a power battery for connecting with tabs of the power battery, and the power battery top cover structure 100 includes: the electrode assembly comprises a first insulating part 101, a top cover part 102 and an electrode assembly, wherein the first insulating part 101 is arranged at the upper end of the electrode assembly and used for insulating the top cover part 102 from the electrode assembly, and at least one part of the electrode assembly is arranged on the first insulating part 101 in a penetrating mode and extends to the top cover part 102 to be used for being connected with the pole winding assembly 200.
Specifically, the first insulating member 101 is provided with a first opening and a second opening distributed along the left-right direction in the first insulating member 101; a cap member 102 disposed below the first insulator, the cap member 102 having a first mounting hole corresponding to the first opening and a second mounting hole corresponding to the second opening; and the electrode assembly is provided with a first pole column piece 103 and a second pole column piece 104, the first pole column piece 103 penetrates through the first opening hole, extends to the first mounting hole and is in insulated contact with the first mounting hole, and the second pole column piece 104 penetrates through the second opening hole, extends to the second mounting hole and is in insulated contact with the second mounting hole.
Illustratively, the first insulating member 101 includes, but is not limited to, an insulating film, and the first insulating member 101 is adhered to the cap member 102, wherein the first opening, the second opening, the first mounting hole and the second mounting hole are sized according to the actual size of the first pole post 103 and the second pole post 104, and generally, the size of the first mounting hole is larger than the size of the first opening, and the size of the second mounting hole is larger than the size of the second opening.
In the implementation process, the first pole column 103 penetrates through the first opening and extends to the first mounting hole of the top cover member 102, the first pole column 103 can be insulated from the upper surface of the top cover member 102 through the first insulating member 101, meanwhile, the first pole column 103 is in insulated contact with the first mounting hole, the insulativity of the overall structure is guaranteed, the second pole column 104 penetrates through the second opening and extends to the second mounting hole of the top cover member 102, the second pole column 104 can be insulated from the upper surface of the top cover member 102 through the first insulating member 101, meanwhile, the second pole column 104 is in insulated contact with the second mounting hole, the insulativity of the overall structure is guaranteed, the first pole column 103 is connected with the first tab 201 of the pole roll assembly 200, and the second pole column 104 is connected with the second tab 202 of the pole roll assembly 200, so that the charging and discharging of the power battery are realized, the parts of the power battery are simplified, and the production processes are reduced.
Referring to fig. 1 again, the first pole piece 103 includes a first pole piece and a second pole piece, the first pole piece is configured to be distributed along a front-back direction, the second pole piece is configured to be distributed along an up-down direction, and the second pole piece is connected below the first pole piece. First utmost point cylinder is connected with the second utmost point cylinder, through carrying out bending deformation with first utmost point post piece 103, makes things convenient for first utmost point cylinder and aluminium to arrange to weld.
For example, the first pole piece 103 includes, but is not limited to, a thin aluminum sheet, and the first pole piece 103 can be bent to form the first pole body and the second pole body, wherein the first pole body can be used for welding with the aluminum row, and the second pole body can be used for electrically connecting with the first tab 201 of the pole roll assembly 200 to realize the charging and discharging process of the pole roll assembly 200.
In some embodiments, the second pole piece 104 includes a third pole piece configured to be distributed along the front-back direction and a fourth pole piece configured to be distributed along the up-down direction, and the fourth pole piece is connected below the third pole piece. The third pole is connected with the fourth pole, and through carrying out bending deformation with second pole piece 104, makes things convenient for the third pole to weld with the aluminium row.
For example, the second pole piece 104 includes but is not limited to a thin aluminum sheet, and the second pole piece 104 may be bent to form the third pole piece that can be used for welding with the aluminum row and the fourth pole piece that can be used for electrically connecting with the second tab 202 of the pole roll assembly 200, and the first pole piece 103 is connected with the first tab 201, and the second pole piece 104 is connected with the second tab 202 to form the positive pole and the negative pole of the power battery, so as to realize the charging and discharging processes of the pole roll assembly 200.
Referring to fig. 1 again, the top cover structure 100 of the power battery further includes two insulating glues 106, where the two insulating glues 106 are respectively located in the first mounting hole and the second mounting hole, and are used for insulating the first pole column 103 from the first mounting hole and insulating the second pole column 104 from the second mounting hole. The insulating glue 106 is provided with a fitting hole configured for the penetration of the first or second pole piece 103, 104.
Illustratively, the fit dimensional tolerance of the fit hole to the first pole piece 103 or the second pole piece 104 is 0 to 0.5mm, which ensures proper assembly, i.e., penetration, of the first pole piece 103 and the second pole piece 104; wherein the insulating adhesive 106 has a strong adhesive stem, and requires an adhesive strength and a shear strength of not less than 7mpa, so as to ensure insulation between the electrode assembly and the cap member 102.
In some embodiments, the top cap structure 100 further includes a second insulating member 105, the second insulating member 105 includes, but is not limited to, an insulating film, and the second insulating member 105 is disposed on a side of the top cap member 102 away from the first insulating member 101. By disposing the second insulating member 105 below the top cover member 102, insulation of the pole roll assembly 200 from the top cover member 102 can be ensured.
In some embodiments, the second insulator 105 is provided with a third opening and a fourth opening, the third opening is located below the first mounting hole, and the fourth opening is located below the second mounting hole. The third opening and the fourth opening are formed in the second insulating member 105, so that the first pole piece 103 and the first tab 201 can be connected and the second pole piece 104 and the second tab 202 can be connected.
As shown in fig. 2-4, in a second aspect, the present application further provides a power battery, including: a pole roll assembly 200 having a first pole tab 201 and a second pole tab 202; and the power battery top cover structure 100 as described in any of the above, the power battery top cover structure 100 is disposed above the pole roll assembly 200, and the first pole piece 103 of the power battery top cover structure 100 is configured to be electrically connected to the first tab 201, and the second pole piece 104 is configured to be electrically connected to the second tab 202.
The power battery provided in the embodiment of the second aspect of the present application includes the power battery top cover structure 100 described in the technical solution of the first aspect, so that all technical effects of the above embodiments are achieved, and details are not repeated herein.
In some embodiments, the first pole piece 103 is welded or bonded to the first tab 201, and the second pole piece 104 is welded or bonded to the second tab 202.
In some embodiments, the power battery further comprises a battery housing 300, the battery housing 300 being configured to house the pole roll assembly 200 and a structure for housing at least a portion of the power battery top cover structure 100. Set up in battery case 300's inside through utmost point book subassembly 200, can form the protection to utmost point book subassembly 200, cooperate with power battery top cap structure 100 simultaneously, realize the sealed of extremely rolling up subassembly 200, guarantee switching on and insulating of extremely rolling up subassembly 200.
The power battery assembling steps provided by the present application include firstly adhering the second insulating member 105 to the lower end of the top cover member 102, then pouring the insulating glue 106 into the first mounting hole and the second mounting hole, adhering the first insulating member 101 to the upper end of the top cover member 102, after the insulating glue 106 is cured, setting a matching hole in the insulating glue 106, correspondingly penetrating the first pole column member 103 and the second pole column member 104 into the matching hole, then filling the gaps between the first pole column member 103 and the matching hole and between the second pole column member 104 and the matching hole with the insulating glue 106, then welding the first pole column member 103 and the first tab 201, welding the second pole column member 104 and the second tab 202, performing an insulating process on the inside and the outside of the battery case 300, finally installing the pole roll assembly 200 into the battery case 300, and welding the top cover member 102 and the battery case 300, thereby completing the assembling process.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A power battery top cap structure, characterized by includes:
the first insulating part is provided with a first opening and a second opening which are distributed along the left-right direction;
a top cover disposed below the first insulator, the top cover having a first mounting hole corresponding to the first opening and a second mounting hole corresponding to the second opening;
and the electrode assembly is provided with a first pole post piece and a second pole post piece, the first pole post piece penetrates through the first opening and extends to the first mounting hole, and is in insulated contact with the first mounting hole, and the second pole post piece penetrates through the second opening and extends to the second mounting hole, and is in insulated contact with the second mounting hole.
2. The power battery top cap structure of claim 1, wherein the first pole piece comprises a first pole cylinder and a second pole cylinder, the first pole cylinder is configured to be distributed along a front-back direction, the second pole cylinder is configured to be distributed along an up-down direction, and the second pole cylinder is connected below the first pole cylinder.
3. The power battery top cover structure according to claim 2, wherein the second pole piece includes a third pole piece and a fourth pole piece, the third pole piece is configured to be distributed along the front-rear direction, the fourth pole piece is configured to be distributed along the up-down direction, and the fourth pole piece is connected below the third pole piece.
4. The top cover structure of the power battery as claimed in claim 1, further comprising two insulating glues respectively located in the first mounting hole and the second mounting hole for insulating the first pole piece from the first mounting hole and insulating the second pole piece from the second mounting hole.
5. The power cell header structure of claim 4, wherein the insulating glue is provided with a mating hole configured for the penetration of the first or second pole piece.
6. The power cell top cover structure of claim 1, further comprising a second insulating member disposed on a side of the top cover member away from the first insulating member.
7. The top cover structure of the power battery as claimed in claim 6, wherein the second insulator is provided with a third opening and a fourth opening, the third opening is located below the first mounting hole, and the fourth opening is located below the second mounting hole.
8. A power cell, comprising:
the pole roll assembly is provided with a first pole lug and a second pole lug; and
the power cell header structure of any one of claims 1-7, disposed above the pole roll assembly, and having a first pole post member configured to electrically couple to the first tab and a second pole post member configured to electrically couple to the second tab.
9. The power cell of claim 8, wherein the first pole piece is welded or bonded to the first tab and the second pole piece is welded or bonded to the second tab.
10. The power battery of claim 8, further comprising a battery housing configured to receive the pole roll assembly and a structure for receiving at least a portion of the power battery top cap structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222325668.6U CN218334028U (en) | 2022-08-31 | 2022-08-31 | Power battery top cover structure and power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222325668.6U CN218334028U (en) | 2022-08-31 | 2022-08-31 | Power battery top cover structure and power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218334028U true CN218334028U (en) | 2023-01-17 |
Family
ID=84833266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222325668.6U Active CN218334028U (en) | 2022-08-31 | 2022-08-31 | Power battery top cover structure and power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218334028U (en) |
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2022
- 2022-08-31 CN CN202222325668.6U patent/CN218334028U/en active Active
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