CN219911895U - Explosion-proof valve and battery pack - Google Patents
Explosion-proof valve and battery pack Download PDFInfo
- Publication number
- CN219911895U CN219911895U CN202321142415.3U CN202321142415U CN219911895U CN 219911895 U CN219911895 U CN 219911895U CN 202321142415 U CN202321142415 U CN 202321142415U CN 219911895 U CN219911895 U CN 219911895U
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- China
- Prior art keywords
- battery pack
- explosion
- movable cover
- sliding part
- movable
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- 238000004880 explosion Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 239000012528 membrane Substances 0.000 claims description 6
- 238000010030 laminating Methods 0.000 claims 1
- 238000009825 accumulation Methods 0.000 abstract description 2
- 238000009423 ventilation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses an explosion-proof valve and a battery pack, wherein the explosion-proof valve is arranged on the battery pack and comprises a fixed seat, a movable seat and a flow guide assembly, the fixed seat penetrates an explosion-proof opening of the battery pack and is fixedly connected with the battery pack, a sliding groove is formed in the fixed seat along a first direction, the movable seat comprises a movable cover and a sliding part, the sliding part penetrates through the sliding groove and is fixedly connected with the movable cover, the sliding part can slide in the sliding groove, the flow guide assembly is close to the movable seat and is connected with the fixed seat, when the sliding part is positioned at an initial position, the movable cover is attached to the battery pack, when the sliding part slides along the first direction from the initial position, the movable cover is separated from the battery pack to form a first exhaust space, the first exhaust space is communicated with an external space, and the flow guide assembly guides air flow of the battery pack to the first exhaust space. The explosion-proof valve is additionally provided with the flow guide assembly, so that the exhaust speed is greatly improved, the gas accumulation is reduced, and the safety performance is also greatly improved.
Description
Technical Field
The utility model relates to the technical field of explosion prevention, in particular to an explosion-proof valve and a battery pack.
Background
With the continuous development of new energy automobiles, the market share of the new energy automobiles is continuously improved, the safety requirement of a battery pack of the new energy automobiles is also continuously improved, and an explosion-proof valve is usually arranged on the battery pack at present.
The explosion-proof valve comprises an upper shell and a lower shell, wherein the upper shell is provided with an air hole and a waterproof and breathable film which is opposite to the air hole, and the air in the battery pack can be discharged to the outside through the air hole and the waterproof and breathable film under the condition of a trace amount;
therefore, the prior art needs to be improved to solve the problems that the explosion-proof valve in the prior art is low in exhaust rate and easy to cause safety accidents.
Disclosure of Invention
The utility model aims to provide an explosion-proof valve and a battery pack so as to solve the technical problems that the explosion-proof valve in the prior art is low in exhaust rate and easy to cause safety accidents.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
an explosion-proof valve mounted on a battery pack, comprising:
the battery pack is fixedly connected with the battery pack through the explosion-proof opening of the battery pack, and the fixing seat is provided with a sliding groove along a first direction;
the movable seat comprises a movable cover and a sliding part, the sliding part penetrates through the sliding groove and is fixedly connected with the movable cover, and the sliding part can slide in the sliding groove;
the diversion assembly is close to the movable seat and is connected with the fixed seat;
when the sliding part is positioned at the initial position, the movable cover is attached to the battery pack, and when the sliding part slides along the first direction from the initial position, the movable cover is separated from the battery pack to form a first exhaust space, the first exhaust space is communicated with the external space, and the flow guide assembly guides the airflow of the battery pack to the first exhaust space.
Preferably, the flow guiding assembly comprises at least one flow guiding plate, and the arc-shaped surface of the flow guiding plate is arranged in an upward inclined manner.
Preferably, the explosion-proof valve further comprises an elastic piece, wherein the elastic piece is arranged in the sliding groove and abuts against the sliding part, and the elastic piece constantly provides elastic force for the movable cover to be attached to the battery pack.
Preferably, the movable cover is further provided with a plurality of ventilation holes, the ventilation holes are arranged at intervals, and all ventilation holes are communicated with the explosion-proof opening.
Preferably, the explosion-proof valve further comprises a waterproof breathable film, and the waterproof breathable film is arranged above all the vent holes.
Preferably, the explosion-proof valve further comprises a limiting column, the limiting column is arranged on the movable cover, the waterproof breathable film is further provided with a limiting hole, and the limiting column penetrates through the limiting hole of the waterproof breathable film.
Preferably, the explosion-proof valve further comprises a cover body, the cover body is connected with the movable seat, a gap is formed between the cover body and the movable seat, so that a second exhaust space is formed, and the second exhaust space is communicated with the outside.
Preferably, the explosion-proof valve further comprises a sealing ring, the sealing ring is provided with a first bulge, the movable cover is provided with an accommodating groove and an avoidance opening, the sealing ring is arranged in the accommodating groove, and the first bulge penetrates through and is limited at the avoidance opening.
The utility model provides a battery package, includes battery package body, fixed plate and explosion-proof valve, the fixed plate is connected the battery package body, and be equipped with explosion-proof mouth assorted opening, the fixing base of explosion-proof valve penetrates in proper order the explosion-proof mouth on opening and the battery package body to rotate to the first position, with the butt the fixed plate.
Preferably, the fixing base is provided with a second protrusion, the fixing plate is provided with a groove matched with the second protrusion, and the fixing base is clamped with the fixing plate.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model designs an explosion-proof valve and a battery pack, wherein the explosion-proof valve is provided with a fixed seat, a movable seat and a flow guide assembly, the fixed seat penetrates an explosion-proof port of the battery pack and is fixedly connected with the battery pack, a chute is formed in the fixed seat along a first direction, the movable seat comprises a movable cover and a sliding part, the sliding part penetrates through the chute and is fixedly connected with the movable cover, the sliding part can slide in the chute, when the sliding part is positioned at an initial position, the movable cover is attached to the battery pack, when the sliding part slides along the first direction from the initial position, the movable cover is separated from the battery pack to form a first exhaust space, the first exhaust space is communicated with an external space, and the flow guide assembly guides air flow of the battery pack to the first exhaust space. The explosion-proof valve is additionally provided with the flow guide assembly, when the air pressure in the battery pack is too high, the air flow of the battery pack is rapidly discharged to the first exhaust space under the guide of the flow guide assembly and then is discharged to the external space, and compared with the traditional explosion-proof valve, the exhaust rate of the explosion-proof valve is greatly improved, the gas accumulation is reduced, and the safety performance is also greatly improved.
Drawings
FIG. 1 is a schematic illustration of the explosion proof valve of the present utility model with a fixed plate disengaged;
FIG. 2 is a schematic illustration of the attachment of the explosion protection valve and the mounting plate of the present utility model;
FIG. 3 is a schematic view of the structure of the movable cover of the present utility model;
FIG. 4 is a schematic structural view of a fixing base of the present utility model;
fig. 5 is a schematic structural view of the fixing plate of the present utility model.
Illustration of: 1. a fixing seat; 2. a chute; 3. a moving block; 4. a second protrusion; 5. a sliding part; 6. a movable cover; 7. a waterproof breathable film; 8. a limit column; 9. a cover body; 10. a fixing plate; 11. an opening; 12. a groove; 13. an elastic member; 14. a deflector; 15. a vent hole; 16. a seal ring; 17. a first protrusion; 18. a first exhaust space; 19. and a second exhaust space.
Detailed Description
In order to make the objects, features and advantages of the present utility model more comprehensible, the technical solutions in the embodiments of the present utility model are described in detail below with reference to the accompanying drawings, and it is apparent that the embodiments described below are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
Referring to fig. 1, 2 and 5, the present utility model provides a battery pack, which includes a battery pack body, a fixing plate 10 and an explosion-proof valve, wherein the fixing plate 10 is connected with the battery pack body, and a fixing seat 1 of the explosion-proof valve penetrates an explosion-proof opening on the battery pack body and rotates to a first position to abut against the fixing plate 10.
More specifically, the fixing base 1 is provided with a second protrusion 4, the fixing plate 10 is provided with a groove 12 matched with the second protrusion 4, and the fixing base 1 is clamped with the fixing plate 10.
The first position of the utility model is the position where the second bulge 4 is clamped with the groove 12, the fixed plate 10 is provided with the opening 11, the opening 11 corresponds to the explosion-proof opening, the fixed seat 1 penetrates the opening 11 of the fixed plate 10 and the explosion-proof opening of the battery pack, then the fixed seat 1 is rotated, the second bulge 4 is clamped with the groove 12 on the fixed plate 10, the explosion-proof valve can be assembled on the battery pack, the assembly is simple, a great convenience is brought to people, and the explosion-proof valve is specifically described below.
Referring to fig. 1, 2 and 4, the explosion-proof valve of the present utility model is installed on a battery pack, and includes a fixing seat 1, a movable seat and a guiding component, wherein the fixing seat 1 penetrates an explosion-proof opening of the battery pack and is fixedly connected with the battery pack, the fixing seat 1 is provided with a sliding chute 2 along a first direction, the movable seat includes a movable cover 6 and a sliding portion 5, the sliding portion 5 penetrates the sliding chute 2 and is fixedly connected with the movable cover 6, the sliding portion 5 can slide in the sliding chute 2, the guiding component is close to the movable seat and is connected with the fixing seat 1, when the sliding portion 5 is located at an initial position, the movable cover 6 is attached to the battery pack, when the sliding portion 5 slides along the first direction from the initial position, the movable cover 6 is separated from the battery pack to form a first exhaust space 18, the first exhaust space 18 is communicated with an external space, and the guiding component guides an airflow of the battery pack to the first exhaust space 18.
It should be noted that, the initial position of the present utility model is the bottom of the chute 2, the explosion-proof valve is additionally provided with the flow guiding component, when the air pressure in the battery pack is greater than the first threshold value 30Pa, the movable cover 6 is separated from the battery pack and forms the first exhaust space 18, the air flow of the battery pack is rapidly discharged to the first exhaust space 18 under the guiding of the flow guiding component and then discharged to the external space.
Specifically, the flow guiding assembly comprises at least one flow guiding plate 14, and the arc-shaped surface of the flow guiding plate 14 is arranged in an upward inclined manner.
Specifically, the explosion-proof valve further comprises an elastic piece 13, wherein the elastic piece 13 is arranged in the chute 2 and is abutted against the sliding part 5, and the elastic piece 13 constantly provides elastic force for the movable cover 6 to be attached to the battery pack.
Specifically, the explosion-proof valve further comprises a moving block 3, wherein the moving block 3 is arranged in the chute 2 and is clamped with the sliding part 5.
According to the utility model, the moving block 3 and the sliding part 5 are arranged at the bottom of the elastic piece 13, the first direction is the vertical direction, when the pressure intensity of the battery pack exceeds a first threshold value, the elastic piece 13 is compressed when the moving block 3 and the sliding part 5 slide upwards along the first direction, the movable cover 6 is separated from the battery pack to form a first exhaust space 18, after the gas of the battery pack is discharged for a period of time, the pressure intensity of the battery pack is reduced, and when the pressure intensity of the battery pack is reduced to be lower than the first threshold value, the moving block 3 and the sliding part 5 cannot be pushed to slide upwards, and at the moment, the elastic force of the elastic piece 13 enables the moving block 3 and the sliding part 5 to slide downwards until the movable cover 6 is attached to the battery pack.
Specifically, referring to fig. 3, the movable cover 6 is further provided with a plurality of vent holes 15, the vent holes 15 are arranged at intervals, and all vent holes 15 are communicated with the explosion-proof opening.
Specifically, the explosion-proof valve further comprises a cover body 9, the cover body 9 is connected with the movable seat, a gap is arranged between the cover body 9 and the movable seat, so that a second exhaust space 19 is formed, and the second exhaust space 19 is communicated with the outside.
In order to meet the requirement of exhausting a small amount of gas from the battery pack, the present utility model further provides the vent hole 15 and the second exhaust space 19, and when the gas pressure of the battery pack does not exceed the first threshold value, the gas from the battery pack cannot be exhausted to the outside through the first exhaust space 18, and at this time, the gas can be exhausted to the second exhaust space 19 through the vent hole 15 and then exhausted to the outside.
Specifically, in order to prevent rainwater from entering the battery pack, the explosion-proof valve further comprises a waterproof breathable film 7, and the waterproof breathable film 7 is arranged above all the vent holes.
More specifically, in order to solve the displacement problem of the waterproof and breathable membrane 7, the explosion-proof valve of the utility model further comprises a limiting column 8, wherein the limiting column 8 is arranged on the movable cover 6, the waterproof and breathable membrane 7 is further provided with a limiting hole, and the limiting column 8 penetrates through the limiting hole of the waterproof and breathable membrane 7.
Specifically, in order to further enhance the tightness of the explosion-proof valve when the explosion-proof valve is attached to a battery pack, the explosion-proof valve further comprises a sealing ring 16, the sealing ring 16 is provided with a first bulge 17, the movable cover 6 is provided with an accommodating groove and an avoidance opening, the sealing ring 16 is arranged in the accommodating groove, and the first bulge 17 penetrates through and is limited at the avoidance opening, so that the sealing ring 16 is not easy to fall off from the explosion-proof valve.
In combination with fig. 1-5, the utility model designs an explosion-proof valve and a battery pack, the explosion-proof valve is arranged on the battery pack, when the pressure of the battery pack is higher than a first threshold value, the movable cover 6 is separated from the battery pack to form a first exhaust space 18, the air flow of the battery pack is discharged to the outside through the first exhaust space 18 under the guidance of the flow guide assembly, when the pressure of the battery pack is lower than the first threshold value, the movable cover 6 is attached to the battery pack, the air flow of the battery pack reaches a second exhaust space 19 through an air vent, and is discharged to the outside from the second space.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
The above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.
Claims (10)
1. An explosion-proof valve, installed on a battery pack, comprising:
the battery pack is fixedly connected with the battery pack through the explosion-proof opening of the battery pack, and the fixing seat is provided with a sliding groove along a first direction;
the movable seat comprises a movable cover and a sliding part, the sliding part penetrates through the sliding groove and is fixedly connected with the movable cover, and the sliding part can slide in the sliding groove;
the diversion assembly is close to the movable seat and is connected with the fixed seat;
when the sliding part is positioned at the initial position, the movable cover is attached to the battery pack, and when the sliding part slides along the first direction from the initial position, the movable cover is separated from the battery pack to form a first exhaust space, the first exhaust space is communicated with the external space, and the flow guide assembly guides the airflow of the battery pack to the first exhaust space.
2. The explosion valve of claim 1, wherein: the flow guide assembly comprises at least one flow guide plate, and the arc-shaped surface of the flow guide plate is obliquely arranged upwards.
3. The explosion valve of claim 1, wherein: still include the elastic component, the elastic component is located in the spout and butt the sliding part, the elastic component is invariably provided the movable cover laminating the elastic force of battery package.
4. The explosion valve of claim 1, wherein: the movable cover is also provided with a plurality of vent holes, the vent holes are arranged at intervals, and all vent holes are communicated with the explosion-proof opening.
5. The explosion valve of claim 4, wherein: the air-permeable waterproof air-permeable membrane is arranged above all the vent holes.
6. The explosion valve of claim 5, wherein: still include spacing post, spacing post is located movable cover is last, waterproof ventilated membrane still is equipped with spacing hole, spacing post runs through the spacing hole of waterproof ventilated membrane.
7. The explosion valve of claim 1, wherein: the novel air conditioner further comprises a cover body, the cover body is connected with the movable seat, a gap is formed between the cover body and the movable seat, so that a second exhaust space is formed, and the second exhaust space is communicated with the outside.
8. The explosion valve of claim 1, wherein: still include the sealing washer, the sealing washer is equipped with first arch, the movable cover is equipped with the holding tank and dodges the mouth, the sealing washer is located in the holding tank, first arch runs through and limit is located dodge the mouth.
9. A battery pack comprising a battery pack body, a fixing plate, and the explosion-proof valve according to any one of claims 1 to 8, characterized in that: the fixed plate is connected with the battery pack body and is provided with an opening matched with the explosion-proof opening, and the fixed seat of the explosion-proof valve sequentially penetrates the opening and the explosion-proof opening on the battery pack body and rotates to a first position to be abutted against the fixed plate.
10. The battery pack according to claim 9, wherein: the fixing seat is provided with a second bulge, the fixing plate is provided with a groove matched with the second bulge, and the fixing seat is clamped with the fixing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321142415.3U CN219911895U (en) | 2023-05-12 | 2023-05-12 | Explosion-proof valve and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321142415.3U CN219911895U (en) | 2023-05-12 | 2023-05-12 | Explosion-proof valve and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219911895U true CN219911895U (en) | 2023-10-27 |
Family
ID=88428463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321142415.3U Active CN219911895U (en) | 2023-05-12 | 2023-05-12 | Explosion-proof valve and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219911895U (en) |
-
2023
- 2023-05-12 CN CN202321142415.3U patent/CN219911895U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |