CN214625187U - Go up plastic and battery top cap - Google Patents
Go up plastic and battery top cap Download PDFInfo
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- CN214625187U CN214625187U CN202120020129.4U CN202120020129U CN214625187U CN 214625187 U CN214625187 U CN 214625187U CN 202120020129 U CN202120020129 U CN 202120020129U CN 214625187 U CN214625187 U CN 214625187U
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- upper plastic
- plastic
- groove
- battery
- cover plate
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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)
- Battery Mounting, Suspending (AREA)
Abstract
The application relates to the field of batteries, in particular to an upper plastic and a battery top cover. The upper plastic is provided with a first surface and a second surface which are oppositely arranged, and the first surface is used for being abutted with a battery cover plate; the first surface is provided with a groove. Set up the recess on the first surface of last plastic, go up the plastic and can produce stress concentration's phenomenon at the in-process of being connected with battery apron, the recess can avoid leading to the problem of plastic fracture because of stress concentration in last plastic and the battery apron connection process, further avoids leading to the not good problem of plastic insulating effect because of last plastic fracture.
Description
Technical Field
The application relates to the field of batteries, in particular to an upper plastic and a battery top cover.
Background
The battery top cap closing cap is in the upper end of casing, and the battery top cap includes top cap piece and two utmost point posts, and two utmost point posts wear to establish respectively in the top cap piece, and the one end of utmost point post extends to inside the casing, is connected with the electric core in the casing, and the other end of utmost point post extends to the outside electrode connection with the outside of casing. For the insulation of utmost point post and top cap piece, plastic need be passed to utmost point post, simultaneously, need be connected through welding or riveted mode for going up between plastic and the top cap piece relatively stable. In the prior art, the upper plastic is easy to crack, and the insulating property of the upper plastic is reduced.
SUMMERY OF THE UTILITY MODEL
An object of the present invention is to provide an upper plastic and a battery top cover, which are designed to keep the upper plastic having better insulating property.
The application provides an upper plastic, which is provided with a first surface and a second surface which are oppositely arranged, wherein the first surface is used for being abutted against a battery cover plate; the first surface is provided with a groove.
Go up the plastic and can produce stress concentration's phenomenon at the in-process of being connected with battery apron, the recess that is located last plastic first surface can avoid leading to the problem of plastic fracture because of stress concentration in last plastic and the battery apron connection process, further avoids leading to the not good problem of plastic insulating effect because of last plastic fracture.
In some embodiments of the first aspect of the present application, the groove extends to an edge of the upper plastic.
In some embodiments of the first aspect of the present application, the region of the upper plastic on the first surface is symmetrically disposed about the groove.
In some embodiments of the first aspect of the present application, the upper plastic is further provided with a positioning portion, and the positioning portion is located on the first surface.
In some embodiments of the first aspect of the present application, the upper plastic includes a plurality of the grooves, and the plurality of the grooves are disposed on the first surface.
In some embodiments of the first aspect of the present application, the upper plastic is further provided with a through hole for the pole to pass through, and the groove extends to a hole wall of the through hole.
For the embodiment that the groove extends to the inner wall of the through hole, the groove can guide out air between the upper plastic and the battery cover plate in the connection process, so that drifting or loosening is avoided.
In some embodiments of the first aspect of the present application, the upper plastic comprises a plurality of said grooves, said plurality of said grooves being arranged along a circumferential array of said through holes.
This application second aspect provides a battery top cap, and battery top cap includes:
an electrode;
a battery cover plate, and
the upper plastic provided by the first aspect is used for accommodating the electrode, and the first surface of the upper plastic is used for abutting against the battery cover plate.
In some embodiments of the second aspect of the present application, a surface of the battery cover plate facing the upper plastic is provided with a groove.
In some embodiments of the second aspect of the present application, a positioning element is disposed on a surface of the battery cover plate facing the upper plastic, and the positioning element is used for being connected to the positioning portion of the upper plastic in a matching manner.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required 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 those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a battery top cover provided in an embodiment of the present application;
fig. 2 shows an exploded schematic view of a battery top cap provided by an embodiment of the present application;
fig. 3 is a schematic structural diagram of an upper plastic at a first viewing angle according to an embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a second viewing angle of the upper plastic according to the embodiment of the present application.
Icon: 100-a battery top cover; 101-an electrode; 102-a battery cover plate; 103-discharging plastic; 104-pole; 200-coating plastic; 201-a first surface; 202-a second surface; 203-a via hole; 210-a groove; 220-positioning section.
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, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection 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 embodiments of the present application, it should be understood that the terms "center", "upper", "lower", and the like refer to an orientation or a positional relationship based on an orientation or a positional relationship shown in the drawings, or an orientation or a positional relationship which is usually arranged when the product of the application is used, or an orientation or a positional relationship which is usually understood by those skilled in the art, and are used for convenience of description and simplification of description only, and do not refer to or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the application.
Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; 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 by those of ordinary skill in the art.
Examples
Fig. 1 shows a schematic structural diagram of a battery top cover 100 according to an embodiment of the present disclosure, fig. 2 shows an explosion schematic diagram of the battery top cover 100 according to the embodiment of the present disclosure, please refer to fig. 1 and fig. 2 together, the embodiment of the present disclosure provides a battery top cover 100, and the battery top cover 100 includes an electrode 101, an upper plastic 200, a battery cover 102, a lower plastic 103, and a terminal post 104. The upper plastic 200 and the lower plastic 103 are respectively located at two sides of the battery cover plate 102, and the pole column 104 passes through the lower plastic 103, the battery cover plate 102, the upper plastic 200 and the electrode 101 to be connected. The battery cover 102 is insulated from the pole 104 by the upper plastic 200 and the lower plastic 103.
In the embodiment of the present application, the electrode 101 may be a positive electrode or a negative electrode. Accordingly, the post 104 may be either a positive post or a negative post.
In the embodiment of the present application, the upper plastic 200 is connected to the battery cover plate 102 by riveting. In the riveting process, since the upper plastic 200 and the battery cap plate 102 have a riveting stress therebetween, the upper plastic 200 may be cracked due to the concentration of the riveting stress. Since an important role of the upper plastic 200 is to insulate the electrode 101 from the battery cap plate 102, the cracked upper plastic 200 may cause the insulation effect to be affected.
Fig. 3 shows a schematic structural diagram of the upper plastic 200 at a first viewing angle according to the embodiment of the present application, and fig. 4 shows a schematic structural diagram of the upper plastic 200 at a second viewing angle according to the embodiment of the present application.
Referring to fig. 3 and 4, the present application provides an upper plastic 200, which can effectively improve the above-mentioned problems.
In the present application, the upper plastic 200 has a first surface 201 and a second surface 202, the first surface 201 and the second surface 202 are disposed opposite to each other, the first surface 201 of the upper plastic 200 is configured to abut against the battery cover plate 102, and the second surface 202 of the upper plastic 200 is configured to abut against the electrode 101.
When the battery top cover 100 is connected, the upper plastic 200 is riveted with the battery cover plate 102. The pole 104 needs to pass through the lower plastic 103, the battery cover 102 and the upper plastic 200 to be connected with the electrode 101. The upper plastic 200 is provided with a through hole 203 for the pole post 104 to pass through.
In the present embodiment, the through hole 203 is located at the center of the first surface 201, and it is understood that in other embodiments of the present application, the through hole 203 and the upper plastic 200 may have other positional relationships, for example, the through hole 203 is close to the edge of the upper plastic 200, and the present application does not limit the relative positional relationship between the through hole 203 and the upper plastic 200.
Referring to fig. 3, in the present embodiment, the upper plastic 200 is a square box, the electrode 101 is accommodated in the square box, and the bottom of the square box is used for abutting against the battery cover plate 102.
It should be noted that, in other embodiments of the present application, the upper plastic 200 may have other shapes, not only a square box shape, but also other irregular shapes.
Accordingly, in the embodiment of the present application, the material of the upper plastic 200 is plastic, such as polycarbonate, ABS plastic, polypropylene, nylon, and the like, and the material of the upper plastic 200 is not limited in this application.
As mentioned above, in order to avoid the upper plastic 200 from cracking due to stress concentration, the first surface 201 of the upper plastic 200 is provided with the groove 210.
In the embodiment of the present application, the grooves 210 disposed on the first surface 201 of the upper plastic 200 may have various embodiments, for example, one groove 210 may be disposed on the first surface 201 of the upper plastic 200, and two, three or more grooves 210 may be disposed.
The following description is given by way of example of providing the first surface 201 of the upper plastic 200 with a recess 210.
For example, in some embodiments, the two opposite ends of the groove 210 are located inside the upper plastic 200, in other words, neither end of the groove 210 extends to the edge of the upper plastic 200. In some embodiments, one end of the groove 210 extends to the edge of the upper plastic 200, and the other end does not extend to the edge of the upper plastic 200. In addition, the groove 210 and the through hole 203 of the upper plastic 200 may have various positional relationships, for example, the groove 210 penetrates through the hole wall of the through hole 203 to communicate the groove 210 with the through hole 203; the groove 210 communicates with the through-hole 203. Alternatively, in other embodiments of the present application, the groove 210 is spaced apart from the through hole 203, and the groove 210 is not in communication with the through hole 203. The groove 210 is communicated with the through hole 203, and after the upper plastic 200 is riveted with the battery cover plate 102, the groove 210 and the through hole 203 can eliminate at least part of riveting stress, so that the problem of cracks caused by stress concentration can be avoided.
It is understood that, in the embodiment of the present application in which the first surface 201 of the upper plastic 200 is provided with one groove 210, the position relationship of the groove 210 can be arbitrarily set. In addition, the shape and extending direction of the groove 210 may be arbitrarily set. For example, the width of the opening and the bottom of the groove 210 may be the same, i.e., the cross-section of the groove 210 is square; alternatively, the width of the opening of the groove 210 may be greater or smaller than the width of the bottom, i.e., the cross-section of the groove 210 is trapezoidal. The groove 210 may extend in one direction, or the groove 210 may extend along a regular or irregular curve, for example, the groove 210 may have a variety of extending paths such as an S-shape, an arc shape, and the like.
In addition, the first surface 201 of the upper plastic 200 may be provided with two, three, or more grooves 210, and the following description will be given taking the first surface 201 of the upper plastic 200 provided with two or more grooves 210 as an example.
For example, the upper plastic 200 is provided with a plurality of grooves 210, and the plurality of grooves 210 may be arranged in any manner, for example, the plurality of grooves 210 are arranged in parallel with each other, the plurality of grooves 210 are arranged in an intersecting manner, or a part of the grooves 210 are arranged in parallel with each other and a part of the grooves 210 intersect each other. The distance between two adjacent grooves 210 may be equal or unequal. The angle between intersecting grooves 210 may be any value. The plurality of grooves 210 may or may not extend in the same manner. In addition, the groove 210 and the through hole 203 can be communicated with each other, and the groove 210 and the through hole 203 can also be independently arranged at intervals; alternatively, the partial groove 210 communicates with the through hole 203, and the partial groove 210 is separately provided from the through hole 203.
Referring to fig. 3 and 4, in the present embodiment, four grooves 210 are disposed on the first surface 201 of the upper plastic 200.
In the present embodiment, four grooves 210 each penetrate the hole wall of the through hole 203, so that the grooves 210 communicate with the through hole 203. In the present embodiment, the four grooves 210 all extend to the edge of the upper plastic 200, in other words, the grooves 210 extend from the hole wall of the through hole 203 to the edge of the upper plastic 200. The pole 104 extends into the through hole 203 and is connected with the electrode 101 on the second surface 202, and during the connection process, gas between the first surface 201 of the upper plastic 200 and the battery cover plate 102 can be exhausted from the groove 210, so that the upper plastic 200 is prevented from drifting or misplacing due to the gas between the first surface 201 of the upper plastic 200 and the battery cover plate 102.
In the present embodiment, four grooves 210 are arranged along the periphery of the through hole 203, and further, four grooves 210 are arranged in an array along the periphery of the through hole 203. Each groove 210 extends in a radial direction of the through-hole 203. In other words, the extending path of each groove 210 is a straight line, and the included angle between two adjacent grooves 210 is approximately 90 °.
Further, in the present embodiment, the width of the opening and the bottom of each groove 210 is the same, and the cross section of each groove 210 is square.
As mentioned above, in the present embodiment, the upper plastic 200 is a square box, and the area of the upper plastic 200 in the first surface 201 is symmetrical with respect to the groove 210. In other words, the groove 210 is located in the middle of the upper plastic 200 along the length direction, and the groove 210 is located in the middle of the upper plastic 200 along the width direction.
In the embodiment of the present application, the groove 210 is disposed on the first surface 201 of the upper plastic 200, and the groove 210 can effectively release the stress of the upper plastic 200 and the battery cover plate 102 during the connection process, so as to prevent the upper plastic 200 from cracking due to the stress, and further prevent the problem of reduction of the insulation effect of the upper plastic 200 due to cracking.
In the present embodiment, the groove 210 is located in the middle of the upper plastic 200, so as to release the stress on the first surface 201 of the upper plastic 200.
Referring to fig. 3 and fig. 4 again, in the present embodiment, the upper plastic 200 is further provided with a positioning portion 220, and the positioning portion 220 is located on the first surface 201. In the embodiment of the present application, the positioning portion 220 may be located at any position of the first surface 201.
In this embodiment, the upper plastic 200 is provided with two positioning portions 220, and the two positioning portions 220 are located at opposite corners of the upper plastic 200. The main function of the positioning portion 220 is to stabilize the upper plastic 200 and the battery cover plate 102 relatively, so as to prevent relative rotation.
In this embodiment, the positioning portion 220 is a circular protrusion, and accordingly, the battery cover plate 102 is provided with a positioning groove matched with the positioning portion 220, and the positioning groove is extended by the positioning portion 220 to achieve the relative fixing effect between the battery cover plate 102 and the upper plastic 200.
In other embodiments of the present application, the positioning portion 220 may have other shapes, such as a square shape, an oval shape, or other irregular shapes. Accordingly, the upper plastic 200 may include only one positioning portion 220, or the upper plastic 200 may include three, four, or more positioning portions 220.
Accordingly, in other embodiments of the present application, the positioning portion 220 may not be a protrusion, for example, a positioning groove, and the protrusion is correspondingly disposed on the surface of the battery cover plate 102 facing the first surface 201 of the upper plastic 200.
As mentioned above, the battery cover plate 102 is connected to the upper plastic 200, and the battery top cover 100 provided in the embodiment of the present application is provided with a positioning element (not shown in the figure) facing the first surface 201 of the upper plastic 200, and the positioning element is connected to the positioning portion 220 of the upper plastic 200 in a matching manner, so that the battery cover plate 102 and the upper plastic 200 can be prevented from rotating relatively.
Further, in the present embodiment, a groove (not shown) is provided on the surface of the battery cover plate 102 facing the first surface 201 of the upper plastic 200, and accordingly, the groove located on the battery cover plate 102 also has the function of releasing the stress between the battery cover plate 102 and the upper plastic 200. Thereby preventing the upper plastic 200 from cracking and causing the insulation performance of the upper plastic 200 to be reduced.
The main advantages of the upper plastic 200 provided by the embodiment of the present application are:
the groove 210 is formed in the first surface 201 of the upper plastic 200, so that stress concentration occurs during the connection process between the upper plastic 200 and the battery cover plate 102, and the groove 210 can prevent the upper plastic 200 from cracking due to stress concentration during the connection process between the upper plastic 200 and the battery cover plate 102, thereby further preventing the problem that the insulation effect of the upper plastic 200 is poor due to cracking of the upper plastic 200.
For the embodiment where the groove 210 extends to the inner wall of the through hole 203, the groove 210 guides the air between the upper plastic 200 and the battery cover plate 102 during the connection process, so as to avoid the occurrence of drift or loosening.
The battery top cover 100 provided by the embodiment of the application has the advantages of the upper plastic 200, and the upper plastic 200 of the battery top cover 100 has a better insulation effect.
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. The upper plastic is characterized by comprising a first surface and a second surface which are oppositely arranged, wherein the first surface is used for being abutted with a battery cover plate; the first surface is provided with a groove.
2. The upper plastic according to claim 1, wherein the groove extends to an edge of the upper plastic.
3. The upper plastic according to claim 1, wherein the region of the upper plastic on the first surface is symmetrically disposed with respect to the groove.
4. The upper plastic according to claim 1, further comprising a positioning portion located on the first surface.
5. The upper plastic according to any one of claims 1-4, wherein the upper plastic comprises a plurality of grooves, and the plurality of grooves are disposed on the first surface.
6. The upper plastic according to any one of claims 1 to 4, wherein the upper plastic is further provided with a through hole for the pole to pass through, and the groove extends to a hole wall of the through hole for the pole to pass through.
7. The upper plastic according to claim 6, wherein the upper plastic comprises a plurality of grooves arranged in a circumferential array along the through hole.
8. A battery top cap, comprising:
an electrode;
a battery cover plate, and
the upper plastic of any one of claims 1-7, the upper plastic configured to receive the electrode, and the first surface of the upper plastic configured to abut the battery cover plate.
9. The battery top cap of claim 8, wherein the surface of the battery cover plate facing the upper plastic is provided with a groove.
10. The battery top cover according to claim 9, wherein a positioning element is disposed on a surface of the battery cover plate facing the upper plastic, and the positioning element is used for being connected with a positioning portion located on the upper plastic in a matching manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120020129.4U CN214625187U (en) | 2021-01-06 | 2021-01-06 | Go up plastic and battery top cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120020129.4U CN214625187U (en) | 2021-01-06 | 2021-01-06 | Go up plastic and battery top cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214625187U true CN214625187U (en) | 2021-11-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120020129.4U Active CN214625187U (en) | 2021-01-06 | 2021-01-06 | Go up plastic and battery top cap |
Country Status (1)
| Country | Link |
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| CN (1) | CN214625187U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116706462A (en) * | 2023-08-07 | 2023-09-05 | 深圳海辰储能控制技术有限公司 | Go up plastic, top cap subassembly, battery and battery package |
-
2021
- 2021-01-06 CN CN202120020129.4U patent/CN214625187U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116706462A (en) * | 2023-08-07 | 2023-09-05 | 深圳海辰储能控制技术有限公司 | Go up plastic, top cap subassembly, battery and battery package |
| CN116706462B (en) * | 2023-08-07 | 2023-10-20 | 深圳海辰储能控制技术有限公司 | Battery and battery pack |
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Address after: 361100 201-1, complex building 5, No. 11, Butang Middle Road, torch high tech Zone (Tongxiang) industrial base, Xiamen, Fujian Province Patentee after: Xiamen Haichen Energy Storage Technology Co.,Ltd. Address before: 361000 201-1, complex building 5, No. 11, Butang Middle Road, torch high tech Zone (Tongxiang) industrial base, Xiamen, Fujian Patentee before: Xiamen Haichen New Energy Technology Co.,Ltd. |