CN217468688U - A top cap subassembly, battery and energy memory for battery - Google Patents
A top cap subassembly, battery and energy memory for battery Download PDFInfo
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- CN217468688U CN217468688U CN202123070768.0U CN202123070768U CN217468688U CN 217468688 U CN217468688 U CN 217468688U CN 202123070768 U CN202123070768 U CN 202123070768U CN 217468688 U CN217468688 U CN 217468688U
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- proof valve
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Abstract
The utility model discloses a top cap subassembly, battery and energy memory for battery for the top cap subassembly of battery includes: the anti-explosion valve comprises an anti-explosion valve and a top plate, wherein at least one air hole is formed in the top plate, the air hole is communicated with the top plate in the thickness direction of the top plate, the anti-explosion valve is located on one side of the thickness direction of the top plate, and the projection of the top plate is located outside the projection of the anti-explosion valve on the top plate. From this, on top plate thickness direction, the bleeder vent is located outside the projection of explosion-proof valve on the roof at the projection of roof, can prevent that the battery from causing the impact to the explosion-proof valve at the in-process electrolyte that rocks, plays the guard action to the explosion-proof valve, avoids the explosion-proof valve to receive the impact force of electrolyte to open the valve in advance, can realize the discharge of the inside gas of battery through the bleeder vent simultaneously, increases the security performance of battery.
Description
Technical Field
The utility model belongs to the technical field of the battery technique and specifically relates to a top cap subassembly, battery and energy memory for battery is related to.
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 utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a top cap subassembly, battery and energy memory for battery, top cap subassembly installation performance is good.
According to the utility model discloses a top cap subassembly for battery of first aspect embodiment includes: the anti-explosion valve comprises an anti-explosion valve and a top plate, wherein at least one air hole is formed in the top plate, the air hole is communicated with the top plate in the thickness direction of the top plate, the anti-explosion valve is located on one side of the thickness direction of the top plate, and the projection of the top plate is located outside the projection of the anti-explosion valve on the top plate.
From this, on top plate thickness direction, the bleeder vent is located outside the projection of explosion-proof valve on the roof at the projection of roof, can prevent that the battery from causing the impact to explosion-proof valve at the in-process electrolyte that rocks, plays the guard action to explosion-proof valve, avoids explosion-proof valve to receive the impact force of electrolyte to open the valve in advance, simultaneously, can realize the inside gaseous discharge that produces of battery through the bleeder vent, increases the security performance of battery.
In some embodiments, the top plate has a shield area opposite the explosion proof valve, the shield area being spaced from the explosion proof valve.
In some embodiments, at least one of the vents is disposed adjacent to the blocked area.
In some embodiments, at least one vent hole extends in a circumferential direction of the explosion-proof valve.
In some embodiments, the number of the ventilation holes is multiple, and the ventilation holes are arranged at intervals.
In some embodiments, a plurality of said vent holes surround the periphery of said explosion proof valve.
In some embodiments, the plurality of vent holes comprises: the air-permeable plate comprises a first air hole and a second air hole, wherein the second air hole and the first air hole are symmetrically arranged.
In some embodiments, the cross-section of the vent is arc, square, polygonal, or annular.
A battery according to an embodiment of the second aspect of the present invention includes a cap assembly for a battery as described in any of the above embodiments.
An energy storage device according to an embodiment of the third aspect of the present invention includes the battery described in the above embodiment.
Additional aspects and advantages of the invention 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 invention.
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 header assembly according to an embodiment of the present invention.
Fig. 2 is a schematic perspective split view of a top cover assembly according to an embodiment of the present invention.
Fig. 3 is a bottom 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 top plate 20; an air hole 21; a first vent 21 a; a second vent 21 b; an occlusion region 22; a connecting portion 23;
an elastic cover plate 30; a mounting hole 31; and a liquid injection hole 32.
Detailed Description
Embodiments of the present invention are described in detail below, the embodiments described with reference to the drawings are exemplary, and a top cap assembly 100 for a battery, and an energy storage device according to embodiments of the present invention, including an explosion-proof valve 10 and a top plate 20, are described below with reference to fig. 1 to 3.
As shown in fig. 1 and 2, at least one ventilation hole 21 is formed in the top plate 20, the ventilation hole 21 penetrates the top plate 20 in the thickness direction of the top plate 20, the explosion-proof valve 10 is positioned at one side of the top plate 20 in the thickness direction, and the projection of the ventilation hole 21 on the top plate 20 in the thickness direction of the top plate 20 is positioned outside the projection of the explosion-proof valve 10 on the top plate 20. Here, the "thickness direction of the top plate 20" means the up-down direction of the top plate 20 as shown in fig. 2,
the top plate 20 may be an insulating cover plate, also known in the art as "lower plastic". The cap assembly 100 may also include a resilient cover plate 30. The elastic cover plate 30 is stacked on the top plate 20 and is mounted on the top side of the top plate 20, a mounting hole 31 is formed on the top plate 20, and the mounting hole 31 is used for mounting the explosion-proof valve 10. The vent holes 21 are formed in the insulating cover plate, the vent holes 21 and the explosion-proof valve 10 are distributed in a staggered mode in the vertical direction of the top plate 20, the projection of the vent holes 21 on the elastic cover plate 30 is located outside the projection of the explosion-proof valve 10 on the elastic cover plate 30, the projection of the vent holes 21 refers to the projection of the vent holes 21 on the elastic cover plate 30 along the axial direction of the top plate 20, the projection of the explosion-proof valve 10 refers to the projection of the explosion-proof valve 10 on the elastic cover plate 30 along the axial direction of the top plate 20, and the projection of the vent holes 21 and the projection of the explosion-proof valve 10 are distributed in a staggered mode in the radial direction of the elastic cover plate 30.
From this, on the thickness direction of roof 20, bleeder vent 21 is located outside the projection of explosion-proof valve 10 on roof 20 at the projection of roof 20, can prevent that the battery from causing the impact to explosion-proof valve 10 at the in-process electrolyte that rocks, plays the guard action to explosion-proof valve 10, avoids explosion-proof valve 10 to receive the impact force of electrolyte to open the valve in advance, simultaneously, can realize the inside gaseous discharge that produces of battery through bleeder vent 21, increases the security performance of battery.
Further, as shown in FIG. 2, the top plate 20 has a shielded area 22 opposite the explosion proof valve 10, the shielded area 22 being spaced apart from the explosion proof valve 10. The shield region 22 may be formed on the top plate 20 with a space between the top plate 20 and the elastic cap plate 30 to facilitate the flow of gas. From this, set up on roof 20 with the relative region of explosion-proof valve 10 and shelter from regional 22, shelter from regional 22 and explosion-proof valve 10 spaced apart, can avoid electrolyte direct impact explosion-proof valve 10, reduce the impact force of electrolyte to explosion-proof valve 10's influence, simultaneously, can guarantee the ventilation effect of bleeder vent.
In some embodiments, as shown in fig. 2, at least one vent 21 is disposed adjacent to the blocked area 22. Be provided with a plurality of bleeder vents 21 in the outside of sheltering from regional 22 circumference, when avoiding electrolyte directly to pass bleeder vent 21 and explosion-proof valve 10 contact, guarantee the inside discharge that can be quick of gas that produces of battery, increase explosion-proof valve 10's ageing nature to make gas can discharge fast, avoid the battery to take place the condition of detonation.
Optionally, at least one vent 21 extends in a circumferential direction of the explosion-proof valve 10. Therefore, the air holes 21 extend along the circumferential direction of the explosion-proof valve 10, so that the air holes 21 are arranged around the periphery of the explosion-proof valve 10 all the time, the air permeation speed of the air holes 21 is increased, the staying time of discharged gas in the battery is reduced, and the use safety is improved.
Specifically, the number of the vent holes 21 is plural, and the plurality of vent holes 21 are arranged at intervals. As shown in fig. 2 and 3, the plurality of ventilation holes 21 are formed in the circumferential direction of the explosion-proof valve 10, a connection portion 23 is formed between the plurality of ventilation holes 21, the connection portion 23 separates the plurality of ventilation holes 21, and the connection portion 23 is integrally designed with the top plate 20. From this, a plurality of bleeder vents 21 interval sets up, can increase the fastness of being connected between bleeder vent 21 and the roof 20, improves the structural strength of roof 20, increases bleeder vent 21 to the guidance quality that the gas flows out in the battery to make gas can discharge more fast.
In some embodiments, a plurality of vent holes 21 are formed around the outer circumference of the explosion-proof valve 10. Therefore, the plurality of air holes 21 are arranged on the periphery of the explosion-proof valve 10, so that the guidance of the air holes 21 to the gas in the battery can be increased, the gas in the battery can flow out from a plurality of directions, and the gas in the battery can be timely discharged from the explosion-proof valve 10.
As shown in fig. 3, the plurality of airing holes 21 includes: a first air hole 21a and a second air hole 21b, the second air hole 21b and the first air hole 21a are symmetrically arranged. When the number of the vent holes 21 is an even number, the first vent holes 21a and the second vent holes 21b are symmetrically distributed in the radial direction of the top plate 20, and the first vent holes 21a and the second vent holes 21b appear in pairs. Therefore, the first air holes 21a and the second air holes 21b are symmetrically arranged, and the reasonability of the distribution of the air holes 21 can be improved. Of course, when the number of the ventilation holes 21 is an odd number, the ventilation holes 21 may be evenly distributed on the outer circumference of the explosion-proof valve 10 at intervals.
In some embodiments, the cross-section of the vent 21 is arc, square, polygonal, or circular. For example, as shown in fig. 3, the cross section of the vent hole 21 taken in a direction parallel to the top plate 20 is arc-shaped, and the arc-shaped vent hole 21 may extend in the circumferential direction of the explosion-proof valve 10. Therefore, the shapes of the air holes 21 can be various, the diversity of the air holes 21 is increased, and the proper air holes 21 are selected according to the air flow rate in unit time, so that the air holes 21 can be used in various occasions.
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.
Referring to fig. 1 to 3, the explosion-proof valve 10 is mounted on the top plate 20 in the axial direction of the top cover assembly 100, the top cover assembly 100 includes an elastic cover plate 30 and the top plate 20 from top to bottom, the elastic cover plate 30 is provided with a mounting hole 31 and a liquid injection hole 32, the explosion-proof valve 10 is mounted in the mounting hole 31, and the electrolyte is injected into the battery through the liquid injection hole 32. The top plate 20 is provided with a shielding area 22 at a position axially opposite to the explosion-proof valve 10, a plurality of vent holes 21 are formed in the periphery of the shielding area 22, and the vent holes 21 can extend in the circumferential direction of the shielding area 22. A connecting part 23 is arranged among the plurality of air holes 21, and the shielding area 22 is connected with the top plate 20 through the connecting part 23.
Therefore, the plurality of air holes 21 are arranged close to the shielding area 22 and along the periphery of the shielding area 22, so that the electrolyte can be prevented from directly passing through the air holes 21 to impact the explosion-proof valve 10 while the battery is kept exhausted, the possibility that the explosion-proof valve 10 is opened in advance by impact force is reduced, the service life of the explosion-proof valve 10 is prolonged, and the safety of the battery is improved.
An energy storage device according to an embodiment of the third aspect of the present invention includes the battery in the above-described embodiment. From this, use top cap subassembly 100 that has this bleeder vent 21, can increase the security of battery, it can avoid shaking in the battery inside from annotating the electrolyte that liquid hole 32 pours into to shelter from regional 22 setting, electrolyte direct impact explosion-proof valve 10 leads to the problem that explosion-proof valve 10 opened the valve in advance, can form the protection to explosion-proof valve 10, increase explosion-proof valve 10's life, and can keep the inside exhaust of battery, so that the exhaust can normally transmit explosion-proof valve 10, with the safety control effect to battery and the energy memory who uses this battery, increase the security of the energy memory who uses this battery.
In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
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 "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 invention, the first feature being "on", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher 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 present invention. 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 present invention 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 invention, the scope of which is defined by the claims and their equivalents.
Claims (9)
1. A cap assembly for a battery, comprising:
an anti-explosion valve is arranged on the upper part of the valve body,
the explosion-proof valve is arranged on one side of the top plate in the thickness direction, and the projection of the air hole on the top plate is positioned outside the projection of the explosion-proof valve on the top plate in the thickness direction of the top plate;
the top plate has a shield area opposite the explosion-proof valve, the shield area being spaced apart from the explosion-proof valve.
2. The cap assembly for a battery of claim 1, wherein at least one of the vent holes is disposed adjacent to the shadow area.
3. The cap assembly for a battery of claim 1, wherein at least one of the vent holes extends in a circumferential direction of the explosion-proof valve.
4. The top cap assembly for a battery as claimed in claim 1, wherein the vent is plural, and the plurality of vents are spaced apart.
5. The cap assembly for a battery of claim 4, wherein a plurality of the vent holes surround an outer circumference of the explosion-proof valve.
6. The cap assembly for a battery of claim 4, wherein the plurality of vent holes comprises: the air-permeable plate comprises a first air hole and a second air hole, wherein the second air hole and the first air hole are symmetrically arranged.
7. The top cap assembly for a battery as claimed in claim 1, wherein the vent has a cross-section of arc shape, polygonal shape or ring shape.
8. A battery comprising the cap assembly for a battery according to any one of claims 1 to 7.
9. An energy storage device comprising the battery of claim 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123070768.0U CN217468688U (en) | 2021-12-08 | 2021-12-08 | A top cap subassembly, battery and energy memory for battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123070768.0U CN217468688U (en) | 2021-12-08 | 2021-12-08 | A top cap subassembly, battery and energy memory for battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217468688U true CN217468688U (en) | 2022-09-20 |
Family
ID=83232929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123070768.0U Active CN217468688U (en) | 2021-12-08 | 2021-12-08 | A top cap subassembly, battery and energy memory for battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217468688U (en) |
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2021
- 2021-12-08 CN CN202123070768.0U patent/CN217468688U/en active Active
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Address after: Room 201-1, Comprehensive Building 5#, No. 11, Butang Middle Road, Torch High-tech Zone (Tongxiang) Industrial Base, Xiamen City, Fujian Province, 361006 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. |