CN215816076U - A top cap subassembly and battery for battery - Google Patents
A top cap subassembly and battery for battery Download PDFInfo
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- CN215816076U CN215816076U CN202122168827.1U CN202122168827U CN215816076U CN 215816076 U CN215816076 U CN 215816076U CN 202122168827 U CN202122168827 U CN 202122168827U CN 215816076 U CN215816076 U CN 215816076U
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- cover plate
- explosion
- proof valve
- battery
- vent hole
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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 discloses a top cover component for a battery and the battery, wherein the top cover component comprises: explosion-proof valve, apron, at least one shielding piece. The cover plate is arranged on one side of the explosion-proof valve, at least one first air hole is formed in the cover plate, and the first air hole penetrates through the cover plate along the thickness direction of the cover plate. The shielding piece is connected to the first vent hole, is located the one side of the apron far away from the explosion-proof valve, is formed with at least one second vent hole with first vent hole intercommunication on the lateral wall of shielding piece. From this, through setting up shielding piece and second bleeder vent, can the pressure release when being convenient for the inside short circuit that takes place of battery leads to pressure increase, and can avoid the inside electrolyte of battery to flow first bleeder vent and form the impact to the explosion-proof valve, can increase the life of explosion-proof valve, reduce electrolyte at the vibrations in-process, atmospheric pressure does not reach the pressure of opening the valve, but electrolyte rocks and leads to the circumstances appearance that the explosion-proof valve opened the valve to the explosion-proof valve impact. Meanwhile, the air permeability of the air holes can be ensured.
Description
Technical Field
The utility model relates to the technical field of batteries, in particular to a top cover assembly for a battery and the battery.
Background
In prior art, be formed with a plurality of bleeder vents on the top cap subassembly, the inside electrolyte of battery can pass the bleeder vent and form the impact to the explosion-proof valve at the in-process of vibrations, leads to the open valve of explosion-proof valve to lead to the explosion-proof valve to explode unusually, influence the life of explosion-proof valve, and lead to revealing of electrolyte easily, the influence uses the security of explosion-proof valve, can not compromise the air permeability of bleeder vent and the security performance of explosion-proof valve.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. To this end, an object of the present invention is to provide a cap assembly for a battery and a battery.
A cap assembly for a battery according to an embodiment of a first aspect of the present invention includes: explosion-proof valve, apron, at least one shielding piece. The cover plate is arranged on one side of the explosion-proof valve, at least one first air hole is formed in the cover plate, and the first air hole penetrates through the cover plate along the thickness direction of the cover plate. The shielding piece is connected to the first vent hole, the shielding piece is located on one side, far away from the explosion-proof valve, of the cover plate, and at least one second vent hole communicated with the first vent hole is formed in the side wall of the shielding piece.
From this, one side through keeping away from explosion-proof valve at the apron sets up the shielding piece, and through set up the second bleeder vent on the lateral wall at the shielding piece, the inside short circuit that takes place of the battery of being convenient for can the pressure release when leading to the pressure increase, and can avoid the inside electrolyte of battery to flow out first bleeder vent and form the impact to explosion-proof valve, can increase explosion-proof valve's life, reduce electrolyte in shock process, atmospheric pressure does not reach the pressure of opening the valve, but electrolyte rocks and leads to the circumstances appearance that explosion-proof valve opened the valve to explosion-proof valve impact. Meanwhile, the air permeability of the air holes can be ensured.
In some embodiments, the shield comprises: shielding part, a plurality of connecting portion, the shielding part is located keeping away from of apron one side of explosion-proof valve, the shielding part with first bleeder vent is relative, and is a plurality of connecting portion all connect the shielding part with between the apron, and a plurality of connecting portion are followed the circumference of first bleeder vent sets up at an interval each other, adjacent two inject between the connecting portion the second bleeder vent.
In some embodiments, the shade is disposed parallel to the cover plate.
In some embodiments, an orthographic projection of the first vent hole on the cover plate falls within an orthographic projection range of the shielding portion on the cover plate.
In some embodiments, each of the connection parts is formed as a concave surface that is concave toward a direction away from the central axis of the first vent.
In some embodiments, one end of each of the connection parts is connected to the sidewall of the first vent hole, and the other end of each of the connection parts is disposed adjacent to the outer circumference of the shielding part.
In some embodiments, the first vent is eccentrically disposed with respect to a center of the cover plate.
In some embodiments, a folded edge extending towards a direction away from the explosion-proof valve is arranged on the edge of the cover plate, an avoiding opening is formed in the folded edge, and the avoiding opening is adjacent to the first air vent.
In some embodiments, the shield is integrally formed with the cover plate.
A battery according to an embodiment of the second aspect of the utility model includes a cap assembly for a battery as described in any of the above embodiments.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of a cap assembly according to an embodiment of the present invention.
Fig. 2 is a schematic perspective exploded view of a cap assembly according to an embodiment of the present invention.
Reference numerals:
a cap assembly 100;
an explosion-proof valve 10;
a cover plate 20; a first vent hole 21; a hem 22; an avoidance port 23;
a shield 30; a second vent hole 31; a shielding portion 32; a connecting portion 33;
the pole 40.
Detailed Description
Embodiments of the present invention are described in detail below, the embodiments described with reference to the drawings are exemplary, and a cap assembly 100 for a battery and a battery according to embodiments of the present invention are described below with reference to fig. 1 to 2.
The cap assembly 100 for a battery according to an embodiment of the first aspect of the present invention includes: explosion-proof valve 10, cover plate 20, at least one shutter 30. The cover plate 20 is disposed at one side of the explosion-proof valve 10, at least one first vent hole 21 is formed on the cover plate 20, and the first vent hole 21 penetrates the cover plate 20 along the thickness direction of the cover plate 20. The shielding piece 30 is connected to the first vent hole 21, the shielding piece 30 is located at one side of the cover plate 20 far away from the explosion-proof valve 10, and at least one second vent hole 31 communicated with the first vent hole 21 is formed on the side wall of the shielding piece 30.
As shown in fig. 1 and 2, a first vent hole 21 communicating two sides of the cover plate 20 is formed in the cover plate 20, a shielding member 30 is disposed on one side of the cover plate 20 away from the explosion-proof valve 10, the shielding member 30 is opposite to the explosion-proof valve 10 on two sides of the cover plate 20 in the axial direction of the first vent hole 21, the shielding member 30 is connected to the first vent hole 21, a plurality of second vent holes 31 are formed in the side wall of the shielding member 30, and adjacent second vent holes 31 are spaced apart from each other.
From this, one side through keeping away from explosion-proof valve 10 at apron 20 sets up shielding piece 30, and through set up second bleeder vent 31 on shielding piece 30's lateral wall, the inside short circuit that takes place of the battery of being convenient for can the pressure release when leading to the pressure increase, and can avoid the inside electrolyte of battery to flow out first bleeder vent 21 and form the impact to explosion-proof valve 10, can increase explosion-proof valve 10's life, reduce electrolyte at the vibrations in-process, atmospheric pressure does not reach the pressure of opening the valve, but electrolyte rocks and leads to the condition appearance that explosion-proof valve 10 opened the valve to the impact of explosion-proof valve 10. Meanwhile, the air permeability of the air holes can be ensured.
Optionally, the shield 30 comprises: the shielding part 32 and the connecting parts 33 are arranged on one side, far away from the explosion-proof valve 10, of the cover plate 20, the shielding part 32 is opposite to the first air hole 21, the connecting parts 33 are connected between the shielding part 32 and the cover plate 20, the connecting parts 33 are arranged at intervals along the circumferential direction of the first air hole 21, and the second air hole 31 is defined between every two adjacent connecting parts 33.
As shown in fig. 2, one end of the connecting portion 33 is connected to the cover plate 20 at the outer periphery of the first vent hole 21, the other end of the connecting portion 33 is connected to the shielding portion 32, and the plurality of connecting portions 33 are spaced apart from each other in the circumferential direction of the first vent hole 21. The cross section of the connecting portion 33 may be an arc-shaped rubber member.
Therefore, the connecting part 33 is arranged between the shielding part 32 and the cover plate 20, on one hand, the connecting part 33 can enable the shielding part 32 and the cover plate 20 to be separated to form a gap for air pressure to circulate, on the other hand, the connecting part 33 is arranged at intervals to form a plurality of second air holes 31, so that air pressure can enter the first air holes 21 from a plurality of directions, the air pressure leakage speed is increased when the internal pressure of the battery is increased, and the structural strength of the connection between the shielding part 30 and the cover plate 20 is increased.
In some embodiments, the curtain 32 is disposed parallel to the cover plate 20. That is, the surface of the shielding portion 32 on the side close to the cover plate 20 is disposed in parallel with the surface of the cover plate 20 on the side close to the explosion-proof valve 10. Of course, the side of the shielding portion 32 facing away from the cover plate 20 may be spherical or a plane arranged parallel to the cover plate 20.
From this, shielding portion 32 and apron 20 parallel arrangement to make electrolyte reduce the impact of radial flow's electrolyte to shielding portion 32 at the vibrations in-process, reduce the impact of electrolyte to explosion-proof valve 10, reduce the occupation of shielding portion 32 to the space that explosion-proof valve 10 one side was kept away from to apron 20, increase the intensity that explosion-proof valve 10 one side structure was kept away from to apron 20 and be higher, it is better to block the effect that electrolyte strikes explosion-proof valve 10.
Further, the orthographic projection of the first ventilation hole 21 on the cover plate 20 falls within the orthographic projection range of the shielding portion 32 on the cover plate 20. The first air hole 21 and the shielding portion 32 are disposed opposite to each other in the axial direction of the first air hole 21, and the projection of the shielding portion 32 on the cover plate 20 along the axial direction of the first air hole 21 at least covers the projection of the first air hole 21 on the cover plate 20, so that the shielding portion 32 covers the first air hole 21 in the axial direction.
Therefore, the orthographic projection of the first vent hole 21 on the cover plate 20 is within the orthographic projection range of the shielding part 32 on the cover plate 20, so that the impact of the electrolyte on the explosion-proof valve 10 can be better avoided, and the protection of the explosion-proof valve 10 is increased.
Specifically, each connecting portion 33 is formed as a concave surface that is concave toward a direction away from the center axis of the first vent hole 21. The connecting portion 33 is bent at a side close to the central axis of the first vent hole 21, and is recessed along the radial direction of the first vent hole 21 away from the central axis of the first vent hole 21 to form a concave surface, and the side of the connecting portion 33 close to the central axis of the first vent hole 21 is spatially parallel to the side far away from the central axis of the first vent hole 21.
Therefore, the side of the connecting part 33 close to the first vent hole 21 is formed with a concave surface, so that the matching of the connecting part 33 and the shielding part 32 and the cover plate 20 is facilitated, and the passing performance and the integrity of the first vent hole 21 are improved.
As shown in fig. 2, one end of each connecting portion 33 is connected to the side wall of the first airing hole 21, and the other end of each connecting portion 33 is disposed adjacent to the outer circumference of the shielding portion 32. The surface of the connecting part 33 close to one side of the central axis of the first vent hole 21 is coplanar with the side wall of the first vent hole 21, and the surface of the connecting part 33 far away from the central axis of the first vent hole 21 is coplanar with the outer peripheral edge of the shielding part 32.
Therefore, one end of the connecting part 33 is connected with the side wall of the first vent hole 21, and the other end is connected with the outer peripheral edge of the shielding part 32, so that the shielding part 32 can axially cover the first vent hole 21, and the possibility of electrolyte impacting the explosion-proof valve 10 is reduced.
In some embodiments, the first airing hole 21 is eccentrically disposed with respect to the center of the cover plate 20. Namely, the top cover assembly 100 further comprises a pole post 40 arranged at the center of the cover plate 20, the first air hole 21 is formed between the edge of the pole post 40 and the edge of the cover plate 20, the protection of the explosion-proof valve 10 is increased, the cover plate 20 is prevented from being extruded inwards by external force, the explosion-proof valve 10 is opened in advance, the service life of the explosion-proof valve 10 is prolonged, and the structure of the top cover assembly 100 is more reasonable.
In detail, a folding edge 22 extending towards the direction far away from the explosion-proof valve 10 is arranged on the edge of the cover plate 20, an avoiding opening 23 is formed on the folding edge 22, and the avoiding opening 23 is adjacent to the first vent hole 21.
As shown in fig. 2, a folded edge 22 is arranged on the edge of the cover plate 20 away from the explosion-proof valve 10, the folded edge 22 can be gradually bent towards the center of the cover plate 20 from the side of the cover plate 20 where the explosion-proof valve 10 is located toward the side of the shielding portion 32 along the axial direction of the cover plate 20, and an avoiding opening 23 is formed on the side of the folded edge 22 close to the shielding portion 32, so that a collecting tray connected to the side of the cover plate 20 away from the explosion-proof valve 10 can be avoided.
Therefore, the edge of the cover plate 20 is provided with the folding edge 22 extending towards the shielding part 32, the folding edge 22 is provided with the avoidance port 23, the tightness of the connection between the top cover assembly 100 and the shell of the battery is increased by carving one folding edge, the sealing performance of the battery is increased, the folding edge 22 is convenient to resist the deformation of the cover plate 20 in the radial direction, and the explosion-proof valve 10 can be further protected.
In some embodiments, the shield 30 is integrally formed with the cover plate 20. Thus, the shield 30 and the cover plate 20 are manufactured by the integral molding technique, so that the structural strength of the shield 32 connected to the cover plate 20 can be increased, the number of processes for assembling parts can be reduced, and the production efficiency can be improved.
A battery according to an embodiment of the second aspect of the present invention includes the cap assembly 100 for a battery according to any one of the above embodiments.
It can be understood that, in the top cover assembly 100, the explosion-proof valve 10 is disposed at one side of the cover plate 20, the shielding member 30 is disposed at one side of the cover plate 20 away from the explosion-proof valve 10, the cover plate 20 is opened with a first vent 21, and the explosion-proof valve 10 is adapted to the first vent 21 to form a seal for one side of the first vent 21 away from the shielding member 30. The shielding member 30 includes a connecting portion 33 and a shielding portion 32, one end of the connecting portion 33 is connected to the cover plate 20 at the edge of the first vent hole 21, and the other end of the connecting portion 33 is connected to the shielding portion 32 in the circumferential direction of the shielding portion 32 and is connected to the end surface of the shielding portion 32 close to the cover plate 20. The connecting parts 33 are provided in plurality, the connecting parts 33 are arranged at intervals in the circumferential direction of the first vent hole 21, the second vent hole 31 is formed between the adjacent connecting parts 33, and the top cover assembly 100 can realize the discharge of the air pressure in the battery through the communication of the first vent hole 21 and the second vent hole 31.
From this, through set up first bleeder vent 21 and at the shielding member 30 of being connected with first bleeder vent 21 on apron 20, and form a plurality of second bleeder vents 31 on shielding member 30, so that top cap subassembly 100 takes place the short circuit in inside and when leading to the pressure increase, atmospheric pressure can in time be let out from first bleeder vent 21 and second bleeder vent 31, avoid the potential safety hazard that the battery explosion formed, shielding part 32 and apron 20 interval set up can form the sheltering from to first bleeder vent 21 in the axial, avoid electrolyte or roll up the direct impact explosion-proof valve 10 of core, increase the security and the life of explosion-proof valve 10.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.
In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features. In the description of the present invention, "a plurality" means two or more. In the description of the present invention, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features being in contact with each other not directly but through another feature therebetween. In the description of the utility model, "above", "over" and "above" a first feature in a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A cap assembly for a battery, comprising:
an explosion-proof valve;
the cover plate is arranged on one side of the explosion-proof valve, at least one first air hole is formed in the cover plate, and the first air hole penetrates through the cover plate along the thickness direction of the cover plate;
the shielding piece is connected to the first vent hole, the shielding piece is located on one side, far away from the explosion-proof valve, of the cover plate, and at least one second vent hole communicated with the first vent hole is formed in the side wall of the shielding piece.
2. The cap assembly for a battery of claim 1, wherein the shield comprises:
the shielding part is positioned on one side of the cover plate far away from the explosion-proof valve and is opposite to the first air hole;
a plurality of connecting portion, it is a plurality of connecting portion all connect the shielding part with between the apron, and a plurality of connecting portion are followed the circumference of first bleeder vent sets up at interval each other, adjacent two inject between the connecting portion the second bleeder vent.
3. The cap assembly for a battery according to claim 2, wherein the shielding part is disposed in parallel with the cap plate.
4. The top cap assembly for a battery according to claim 2, wherein an orthographic projection of the first vent hole on the cover plate falls within an orthographic projection range of the shielding portion on the cover plate.
5. The top cap assembly for a battery according to claim 2, wherein each of the connection parts is formed as a concave surface that is concave toward a direction away from the central axis of the first vent hole.
6. The top cap assembly for a battery according to claim 2, wherein one end of each of the connection parts is connected to the side wall of the first vent hole, and the other end of each of the connection parts is disposed adjacent to the outer circumference of the shielding part.
7. The cap assembly for a battery according to any one of claims 1 to 6, wherein the first vent is eccentrically disposed with respect to the center of the cap plate.
8. The top cover assembly for the battery according to any one of claims 1 to 6, wherein a folded edge extending away from the explosion-proof valve is formed on the edge of the cover plate, and an avoiding opening is formed on the folded edge and is adjacent to the first vent hole.
9. The cap assembly for a battery of any one of claims 1-6, wherein the shield is integrally formed with the cover plate.
10. A battery comprising the cap assembly for a battery of any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122168827.1U CN215816076U (en) | 2021-09-08 | 2021-09-08 | A top cap subassembly and battery for battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122168827.1U CN215816076U (en) | 2021-09-08 | 2021-09-08 | A top cap subassembly and battery for battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215816076U true CN215816076U (en) | 2022-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122168827.1U Active CN215816076U (en) | 2021-09-08 | 2021-09-08 | A top cap subassembly and battery for battery |
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| Country | Link |
|---|---|
| CN (1) | CN215816076U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115498335A (en) * | 2022-09-28 | 2022-12-20 | 厦门海辰储能科技股份有限公司 | End cover assembly, single battery, battery pack and electric equipment |
-
2021
- 2021-09-08 CN CN202122168827.1U patent/CN215816076U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115498335A (en) * | 2022-09-28 | 2022-12-20 | 厦门海辰储能科技股份有限公司 | End cover assembly, single battery, battery pack and electric equipment |
| CN115498335B (en) * | 2022-09-28 | 2023-09-15 | 厦门海辰储能科技股份有限公司 | End cover assembly, battery monomer, battery pack and electric equipment |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
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: Room 201-1, Comprehensive Building 5#, No. 11, Butang Middle Road, Industrial Base, Xiamen Torch High-tech Zone (Tongxiang), Xiamen City, Fujian Province, 361012 Patentee before: Xiamen Haichen New Energy Technology Co.,Ltd. |
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| CP03 | Change of name, title or address |