CN210073995U - Protection safety check valve of double-deck safeguard function type - Google Patents
Protection safety check valve of double-deck safeguard function type Download PDFInfo
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- CN210073995U CN210073995U CN201920772380.9U CN201920772380U CN210073995U CN 210073995 U CN210073995 U CN 210073995U CN 201920772380 U CN201920772380 U CN 201920772380U CN 210073995 U CN210073995 U CN 210073995U
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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 provides a protection safety check valve of double-deck safeguard function type, which comprises a valve body, be equipped with ventilative groove on the valve body, the valve gap includes lid and spliced pole, the lid covers the ventilative groove of valve body, waterproof ventilated membrane is fixed on the valve body, and it is sealed with the whole covers of ventilative groove, and the inner seal circle is located between valve body and the valve gap, first sealing washer surrounds all ventilative grooves, and compact structure compresses tightly the valve gap to the valve body direction, and when reasons such as ageing, distortion, external sand and dust got into appeared in the inner seal circle lead to losing its original sealed effect, at this moment, waterproof ventilated membrane can play the waterproof dirt-proof protective effect of secondary, plays the effect that the inefficacy was prevented in the protection and the design, has guaranteed the security of battery package.
Description
Technical Field
The utility model belongs to the technical field of relate to explosion-proof valve, specifically be a protection safety check valve who relates to a double-deck safeguard function type.
Background
The battery is the most critical composition in the new energy automobile, in the production of battery, need form battery Package (PACK) with the group battery, in the battery package after the former device of work takes place abnormal work and temperature rise, and the difference in elevation all can cause a pressure differential inside and outside the battery package in the driving process, influences the safety of battery use, consequently needs to eliminate the pressure differential.
Among the prior art, in order to eliminate the inside pressure of battery package, generally install the valve that is used for the pressure release on the battery package, wherein have the check valve that only can one-way open, the inside sealing washer that is used for sealing that is equipped with of check valve, in long-time use, thereby the sealing washer can take place ageing and lose sealed effect, at this moment, the battery package is inside directly communicates with the external world through the check valve to the effect of blockking of check valve has been lost, the life of battery package is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an after the ageing inefficacy of check valve sealing washer among the prior art, the check valve can not be with the inside and outside isolated problem of battery package, provides a protection safety check valve of double-deck safeguard function type now, can provide multilayer protection, keeps apart inside and outside the battery package, guarantees the product security.
The utility model provides a protective safety one-way valve with double-layer protective function, which comprises a valve body, wherein the valve body is provided with a ventilation groove,
the valve cover comprises a cover body and a connecting column, the cover body covers the ventilation groove of the valve body,
the waterproof breathable film is fixed on the valve body, the breathable groove is completely covered and sealed,
the inner sealing ring is positioned between the valve body and the valve cover, the first sealing ring surrounds all the ventilation grooves,
the compressing structure compresses the valve cover towards the valve body.
Preferably, the middle part of the valve body is provided with a through hole, and the valve cover connecting column penetrates through the through hole to the other side of the valve body.
Preferably, the compressing structure comprises an elastic part and a guide rod, one end of the guide rod is provided with a limiting part with a diameter larger than that of the guide rod, the other end of the guide rod is connected with the valve cover connecting column through threaded connection, and the elastic part is sleeved on the guide rod.
Preferably, one side of the valve body, which is close to the compression structure, is provided with an outer sealing ring.
Preferably, the waterproof and breathable film is an e-PTFE material film.
Preferably, the waterproof breathable film is fixed with the valve body through hot melting or welding.
The utility model has the advantages that:
1. when the inner sealing ring loses the original sealing function due to aging, distortion, external sand and dust entering and the like, the waterproof and breathable film can play a role in secondary waterproof and dustproof protection, so that the functions of failure protection and fool-proofing design are achieved, and the safety of the battery pack is ensured;
2. when the battery pack and the one-way valve are normally used, the one-way valve can isolate the inside and the outside of the battery pack, so that the contact between the inside of the battery pack and the outside is avoided, and the safety of the battery pack is ensured;
3. when the battery package is inside unusual, the inside pressure of battery package increases, and when the battery package internal pressure reached to set for opening pressure numerical value, the inside atmospheric pressure of battery package acted on the fixed connection department of waterproof ventilated membrane and valve body, and waterproof ventilated membrane breaks away from with the valve body, and at this moment, inside atmospheric pressure can be backed down the valve gap to realize and external intercommunication, reach the effect of quick pressure release.
Drawings
FIG. 1 is an exploded view of the structure of the present invention;
fig. 2 is a schematic structural view of a cross-sectional view in a normal use state of the present invention;
fig. 3 is a schematic structural view of a sectional view of the blasting pressure relief state of the present invention;
FIG. 4 is a schematic view of the valve body structure of the present invention;
the valve comprises a valve cover 1, a valve cover 2, an inner sealing ring 3, a waterproof breathable film 4, a valve body 41, a fixing hole 42, a breathable groove 43, a through hole 5, an outer sealing ring 6, an elastic piece 7 and a guide rod.
Detailed Description
The technical solution of the present invention is described below, without limitation, with reference to the accompanying drawings, for the purpose of better understanding the technical contents by the public.
Examples
As shown in fig. 1 to 4, a protective safety check valve with double-layer protective function comprises a valve body 4, a ventilation groove 42 is arranged on the valve body 4,
the valve cover 1, the valve cover 1 comprises a cover body and a connecting column, the cover body covers the ventilation groove 42 of the valve body 4,
a waterproof ventilated membrane 3, the waterproof ventilated membrane 3 is fixed on the valve body 4 and completely covers and seals the ventilated groove 42,
the inner sealing ring 2 is positioned between the valve body 4 and the valve cover 1, the first sealing ring surrounds all the ventilation grooves 42,
the compressing structure compresses the valve cover 1 towards the valve body 4.
Under compact structure's effect, 1 side of valve gap and 4 side butts of valve body, because be equipped with interior sealing washer 2 between the contact surface, consequently, including can completely cut off the inside and outside both sides of check valve (being the inboard of valve body 4 and the outside of valve gap 1) under sealing washer 2 and compact structure's effect, avoid the inside and outside direct contact that takes place of check valve. Further, be fixed with waterproof ventilated membrane 3 on the ventilative groove 42 of valve body 4, the ventilated membrane at this moment is whole to be covered with the ventilative groove 42 of valve body 4, and, waterproof ventilated membrane 3 is in the inside of inner seal circle 2, like this, the ventilative groove 42 of valve body 4 is passed through to the inside of check valve, through waterproof ventilated membrane 3 to valve gap 1 medial surface, because do not set up the hole on the valve gap 1, under the effect of inner seal circle 2, with external isolated.
As shown in fig. 1-3, in order to press the valve cap 1 toward one side of the valve body 4, in the present embodiment, a through hole 43 is formed in the middle of the valve body 4, and the connecting column of the valve cap 1 passes through the through hole 43 to the other side of the valve body 4. Furthermore, the compressing structure comprises an elastic part 6 and a guide rod 7, one end of the guide rod 7 is provided with a limiting part with the diameter larger than that of the guide rod 7, the other end of the guide rod 7 is connected with the connecting column of the valve cover 1 through threaded connection, and the elastic part 6 is sleeved on the guide rod 7.
In order to seal the valve body 4 and the battery pack, an outer sealing ring 5 is arranged on one side, close to the compression structure, of the valve body 4, furthermore, fixing holes 41 which are used for fixing the valve body 4 with the battery pack are also formed in the valve body 4, the two fixing holes 41 are formed and are respectively located on two sides of the outer portion of the ventilation groove 42 of the valve body 4, and the valve body 4 is fixed through the fixing holes 41.
In the embodiment, the waterproof breathable film 3 is an e-PTFE film, and due to the material characteristics, when the inner sealing ring 2 loses the sealing effect, impurities and moisture in the air can be effectively removed, so that the normal operation of the interior of the battery pack is ensured, and meanwhile, the adjustment can be performed when a pressure difference exists between the interior and the exterior of the battery pack, so that the internal and external pressures are balanced.
To the fixing with waterproof ventilated membrane 3, waterproof ventilated membrane 3 is fixed with valve body 4 through hot melt or welding, and is concrete, and in this embodiment, waterproof ventilated membrane 3 is fixed through hot melt, and the hot melt is fixed convenient, easy operation, and the cost is lower.
Finally, when the battery pack and the one-way valve are normally used, the one-way valve can isolate the inside and the outside of the battery pack, so that the contact between the inside of the battery pack and the outside is avoided, and the safety of the battery pack is ensured; when the battery package is inside unusual, the inside pressure of battery package increases, and when the battery package internal pressure reached to set for opening pressure numerical value, the inside atmospheric pressure of battery package acted on waterproof ventilated membrane 3 and valve body 4's fixed connection department, and waterproof ventilated membrane 3 breaks away from with valve body 4, and at this moment, inside atmospheric pressure can be opened valve gap 1 by pushing up to realize reaching the effect of quick pressure release with external intercommunication.
It should be understood that the above-mentioned description including the accompanying drawings is not intended to limit the technical solutions, and in fact, modifications to the technical solutions, including shapes of structures of various parts, dimensions, materials used, and equivalents of substantially the same functional structures, are within the technical solutions claimed in the present invention under the same or similar principles.
Claims (6)
1. A protective safety one-way valve with double-layer protective function is characterized by comprising a valve body, wherein a ventilation groove is arranged on the valve body,
the valve cover comprises a cover body and a connecting column, the cover body covers the ventilation groove of the valve body,
the waterproof breathable film is fixed on the valve body, the breathable groove is completely covered and sealed,
an inner sealing ring positioned between the valve body and the valve cover, wherein the inner sealing ring surrounds all the ventilation grooves,
the compressing structure compresses the valve cover towards the valve body.
2. A protective safety check valve of the double layer protective function type according to claim 1, wherein: the valve body middle part is equipped with the through-hole, the valve gap spliced pole passes through the through-hole to the valve body opposite side.
3. A protective safety check valve of the double layer protective function type according to claim 2, wherein: the compressing structure comprises an elastic part and a guide rod, wherein one end of the guide rod is provided with a limiting part with the diameter larger than that of the guide rod, the other end of the guide rod is connected with a valve cover connecting column through threaded connection, and the elastic part is sleeved on the guide rod.
4. A protective safety check valve of the double layer protective function type according to claim 3, wherein: and one side of the valve body, which is close to the compression structure, is provided with an outer sealing ring.
5. The double-layer safeguard function type safeguard safety check valve according to claim 4, characterized in that: the waterproof breathable film is an e-PTFE material film.
6. The double-layer safeguard function type safeguard safety check valve according to claim 5, characterized in that: the waterproof breathable film is fixed with the valve body through hot melting or welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920772380.9U CN210073995U (en) | 2019-05-27 | 2019-05-27 | Protection safety check valve of double-deck safeguard function type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920772380.9U CN210073995U (en) | 2019-05-27 | 2019-05-27 | Protection safety check valve of double-deck safeguard function type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210073995U true CN210073995U (en) | 2020-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920772380.9U Active CN210073995U (en) | 2019-05-27 | 2019-05-27 | Protection safety check valve of double-deck safeguard function type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210073995U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11662036B2 (en) | 2020-08-31 | 2023-05-30 | Contemporary Amperex Technology Co., Limited | Bidirectional pressure relief valve, battery and electric device |
-
2019
- 2019-05-27 CN CN201920772380.9U patent/CN210073995U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11662036B2 (en) | 2020-08-31 | 2023-05-30 | Contemporary Amperex Technology Co., Limited | Bidirectional pressure relief valve, battery and electric device |
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