CN209747617U - Balance explosion-proof valve with built-in umbrella type blasting repairing type - Google Patents
Balance explosion-proof valve with built-in umbrella type blasting repairing type Download PDFInfo
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- CN209747617U CN209747617U CN201920772388.5U CN201920772388U CN209747617U CN 209747617 U CN209747617 U CN 209747617U CN 201920772388 U CN201920772388 U CN 201920772388U CN 209747617 U CN209747617 U CN 209747617U
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- valve body
- ventilating
- valve
- soft rubber
- clamping
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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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- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model provides a built-in umbrella type blasting repairing type balance explosion-proof valve, which comprises a valve body, wherein the valve body is provided with air holes; the flexible glue sealing sleeve comprises a clamping portion and a ventilating portion, the clamping portion and the ventilating portion are of umbrella-shaped structures, a sealing portion extending towards the clamping portion is arranged at the edge of the ventilating portion, the clamping portion penetrates through a through hole formed in the valve body and is clamped with the valve body, a plurality of ventilating grooves are formed in the ventilating portion, the ventilating grooves are communicated with air holes of the valve body, and the sealing portion is in interference fit with the valve body; the gland is fixed on the outer side of the valve body and is provided with an air outlet hole communicated with the outer side of the sealing part; the ventilated membrane, the ventilated membrane covers the ventilative groove on the flexible glue seal cover, and the ventilated membrane is fixed with flexible glue seal cover or gland, the utility model discloses a balanced explosion-proof valve is after quick pressure release, and the original shape is resumeed to the sealing of flexible glue seal cover, and is completely cut off the inside and outside formation of battery package once more, avoids the inside and external direct intercommunication of battery package.
Description
Technical Field
The utility model belongs to the explosion-proof valve field specifically is a balanced explosion-proof valve of formula is repaiied in built-in umbrella type blasting.
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, generally adopt balanced explosion-proof valve, be equipped with the ventilated membrane in the balanced explosion-proof valve, when the pressure differential is less, carry out pressure regulation through the ventilated membrane, when battery package internal pressure is great, puncture the ventilated membrane through the interior puncture structure of explosion-proof valve, thereby with the inside and outside intercommunication of battery package, carry out quick pressure release, however, after the pressure release, inside and external direct intercommunication of battery package, can lead to outside air entering battery package inside, thereby influence the battery quality, make the battery life-span descend, and simultaneously, also can influence the safety of battery package.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a to the problem among the prior art, provide a balanced explosion-proof valve of built-in umbrella type blasting restoration formula now, after the pressure release, can be once more completely cut off the inside and outside of battery package, avoid the inside and external direct contact of battery package.
The utility model provides a built-in umbrella type blasting repairing type balance explosion-proof valve, which comprises a valve body, wherein the valve body is provided with air holes;
the flexible glue sealing sleeve comprises a clamping portion and a ventilating portion, the clamping portion and the ventilating portion are of umbrella-shaped structures, a sealing portion extending towards the clamping portion is arranged at the edge of the ventilating portion, the clamping portion penetrates through a through hole formed in the valve body and is clamped with the valve body, a plurality of ventilating grooves are formed in the ventilating portion, the ventilating grooves are communicated with air holes of the valve body, and the sealing portion is in interference fit with the valve body;
The gland is fixed on the outer side of the valve body and is provided with an air outlet hole communicated with the outer side of the sealing part;
And the breathable film covers the breathable groove on the soft rubber sealing sleeve and is fixed with the soft rubber sealing sleeve or the gland.
Preferably, the abutting surface of the valve body and the soft rubber sealing sleeve is provided with a raised annular part, the air holes are positioned in the annular part, and the sealing part of the soft rubber sealing sleeve is in interference fit with the annular part.
Preferably, the middle part of the valve body is provided with a clamping hole, the clamping part of the soft rubber sealing sleeve is provided with a protruding part, the clamping part penetrates through the clamping hole, and the protruding part on the clamping part is clamped with the clamping hole.
Preferably, the inner surface of the gland is provided with an annular bulge matched with the edge of the breathable part of the soft rubber sealing sleeve, the annular bulge of the gland is provided with a communicating hole communicated with the air outlet hole, and the annular bulge is abutted against the upper side surface of the soft rubber sealing sleeve or provided with a gap.
Preferably, the valve body is further provided with an installation interface connected with the battery pack, and the installation interface is a buckle or a thread.
preferably, the clamping portion, the ventilation portion and the sealing portion are of an integrated structure.
Preferably, one side of the valve body installation interface is provided with an annular clamping groove, and a sealing ring is arranged in the annular clamping groove.
Preferably, the breathable film is an e-PTFE material film.
Preferably, the breathable film is fixed with the gland through hot-melt welding or ultrasonic welding.
The utility model has the advantages that: the ventilated membrane is abutted with the soft rubber sealing sleeve after being fixed on the gland, at the moment, the interior of the battery pack is communicated with the outside through the air holes on the valve body, the air permeable part on the soft rubber sealing sleeve, the ventilated membrane and the communication holes on the gland in sequence, the pressure in the battery pack is adjusted, when the internal pressure is abnormal and increased, the soft rubber sealing sleeve and the sealing part in interference fit with the valve body are flushed away, so that a gap is formed between the sealing part and the annular part of the valve body, at the moment, the interior of the battery pack is directly contacted with the outside through the gap for rapid pressure relief, after the pressure relief is completed, the internal pressure of the battery pack is reduced, the pressure of the soft rubber sealing sleeve is reduced, the sealing part of the soft rubber sealing sleeve restores the original shape, the interior of the battery pack is isolated from the outside again, the direct communication between the interior of the battery pack and the outside, can be used continuously after rapid pressure relief.
drawings
FIG. 1 is a schematic structural diagram of the balanced explosion-proof valve of the present invention;
FIG. 2 is a schematic diagram of the structure of the explosion diagram of the balanced explosion-proof valve of the present invention;
FIG. 3 is a schematic structural view of a cross-sectional view of the balance explosion-proof valve of the present invention;
FIG. 4 is a schematic view of the structure of the flexible glue sealing sleeve of the balanced explosion-proof valve of the utility model;
The air-permeable valve comprises a valve body 1, a valve body 11, an annular part 12, air holes 13, an installation interface 14, a clamping hole, a soft rubber sealing sleeve 2, a ventilating part 21, a ventilating part 22, a clamping part 23, a sealing part 24, a bulge part 25, a ventilating groove 3, a ventilating film 4, a gland 41, an air outlet hole 42, an annular bulge 5 and a sealing ring.
Detailed Description
in order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 4, a built-in umbrella type blasting restoration type balance explosion-proof valve comprises a valve body 1, wherein an air hole 12 is formed in the valve body 1; the soft rubber seal sleeve 2 comprises a clamping portion 22 and a ventilating portion 21, the clamping portion 22 and the ventilating portion 21 are of umbrella-shaped structures, a sealing portion 23 extending towards the clamping portion 22 is arranged at the edge of the ventilating portion 21, the clamping portion 22 penetrates through a through hole formed in the valve body 1 and is clamped with the valve body 1, a plurality of ventilating grooves 25 are formed in the ventilating portion 21, the grooves of the ventilating portion 21 are communicated with the ventilating holes 12 of the valve body 1, and the sealing portion 23 is in interference fit with the valve body 1; the gland 4 is fixed on the outer side of the valve body 1, and an air outlet hole 41 communicated with the outer side of the sealing part 23 is formed in the gland 4; and the breathable film 3 covers the breathable groove 25 on the soft rubber sealing sleeve 2, and the breathable film 3 is fixed with the soft rubber sealing sleeve 2 or the gland 4.
soft glue seal cover 2 has certain elasticity, after fixing soft glue seal cover 2 and valve body 1, soft glue seal cover 2 is with the sealing 23 and the 1 interference fit of valve body 1, specific saying so, 11 interference fit with the annular portion that sets up on valve body 1, all seal except that bleeder vent 12 between soft glue seal cover 2 and the valve body 1, this moment, bleeder vent 12 on the valve body 1 is in the connected state with the ventilative groove 25 of soft glue seal cover 2, set up ventilated membrane 3 in the outside of soft glue seal cover 2, it is fixed with gland 4 and valve body 1 again, gland 4 is located ventilated membrane 3's the outside, this moment, inside bleeder vent 12 through valve body 1 of battery package, ventilative groove 25 on the soft glue seal cover 2, venthole 41 and external intercommunication on ventilated membrane 3 and the gland 4, can adjust the inside pressure of battery package.
Wherein, for the annular part 11 on the valve body 1, in this embodiment, the annular part 11 is located at the abutting surface of the valve body 1 and the soft rubber sealing sleeve 2, the air holes 12 are located in the annular part 11, the sealing part 23 of the soft rubber sealing sleeve 2 is in interference fit with the annular part 11, the sealing part 23 of the soft rubber sealing sleeve 2 is located at the outer side of the annular part 11, the outer side of the annular part 11 is in interference fit with the annular part 11, in a normal state (the inside of the battery pack is not abnormal, and the internal pressure is normal or unused), the gap between the valve body 1 and the soft rubber sealing sleeve 2 can be eliminated by the soft rubber sealing sleeve 2, that is, the soft rubber sealing sleeve 2 and the valve body 1 are in a sealing state (at this time, the air holes 12 of the valve body 1 and the air holes 25 of the soft rubber sealing sleeve 2 are in a communicating state and are communicated with the inner side of, at the inside anomaly of battery package, when pressure increases, carry out pressure control through ventilated membrane 3 and can not adjust the inside pressure of battery package, at this moment, can be with 11 interference fit's of annular portion of valve body 2 sealing 23 dashes out, there is the clearance between 11 and the flexible glue sealing cover 2 of annular portion of valve body 1, at this moment, battery package inside is direct and external intercommunication through this clearance, carry out quick pressure release, after the reduction of battery package internal pressure, the sealing 23 of flexible glue sealing cover 2 resumes original shape and position, form sealed once more, balanced explosion-proof valve at this moment can also continue work.
Wherein, in order to fix flexible glue seal cover 2 and valve body 1, in this embodiment, 1 middle part of valve body is equipped with joint hole 14, be equipped with bellying 24 on the joint portion 22 of flexible glue seal cover 2, joint portion 22 passes joint hole 14, bellying 24 and the joint in joint hole 14 on the joint portion 22, pass joint hole 14 with joint portion 22 on the flexible glue seal cover 2, joint portion 22 this moment is the cylinder structure, joint hole 14 is the circular port of adaptation with it, is equipped with the annular groove on joint portion 22, the annular groove forms bellying 24 with joint portion 22 inboard, after inserting joint hole 14 with joint portion 22, can be connected between flexible glue seal cover 2 and the valve body 1.
Further, in order to avoid soft rubber seal cover 2 to drop with valve body 1 when internal pressure is too big, be equipped with on the 4 internal surfaces of gland with the annular arch 42 of the 21 marginal adaptations of the ventilative portion of soft rubber seal cover 2, be equipped with the intercommunicating pore of intercommunication venthole 41 on the 4 annular arch 42 of gland, the side butt or be equipped with the clearance on annular arch 42 and the soft rubber seal cover 2, in this embodiment, there is the clearance before the side on annular arch 42 and the soft rubber seal cover 2, and the clearance is 2mm, and annular arch 42 this moment is located the outside of soft rubber seal cover 2, when the battery package is inside unusual, through annular arch 42, can be with the restriction of soft rubber seal cover 2 in certain position, avoid soft rubber seal cover 2 to take place great displacement, break away from valve body 1.
Of course, the annular protrusion 42 can be abutted against the outer side surface of the soft rubber sealing sleeve 2, the breathable film 3 can be fixedly mounted in the middle of the annular protrusion 42, and the internal pressure of the battery pack can be adjusted under two different states.
Wherein, in order to balance the installation of explosion-proof valve, in this embodiment, still be equipped with the installation interface 13 of being connected with the battery package on the valve body 1, installation interface 13 is buckle or screw thread, and in specific this embodiment, installation interface 13 is the buckle, and the bleeder vent 12 on the valve body 1 passes the buckle structure, does not influence the regulation of installation and pressure.
Wherein, for convenient production, joint portion 22, ventilative portion 21 and sealing 23 structure as an organic whole, flexible glue seal cover 2 is through integrated into one piece (for example injection moulding) shaping, and flexible glue seal cover 2 can adopt integrated into one piece this moment, and convenient production also can increase the use longevity face, avoids each position separation in the use.
In this embodiment, in order to increase the sealing effect between balanced explosion-proof valve and the battery package, valve body 1 installation interface 13 one side is equipped with ring groove, be equipped with sealing washer 5 in the ring groove.
finally, the breathable film 3 is an e-PTFE material film. Further, the gas permeable membrane 3 is fixed to the gland 4 by thermal welding or ultrasonic welding. Ventilated membrane 3 can separate the inside and outside of battery package under normal use state, avoids direct intercommunication, makes moisture in the air and impurity get into inside the battery package, influences the life of battery package, simultaneously, in this embodiment, fixes ventilated membrane 3 through hot melt welding and flexible glue seal cover 2, convenient processing production.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (9)
1. A built-in umbrella type blasting restoration type balance explosion-proof valve is characterized by comprising a valve body, wherein air holes are formed in the valve body;
The flexible glue sealing sleeve comprises a clamping portion and a ventilating portion, the clamping portion and the ventilating portion are of umbrella-shaped structures, a sealing portion extending towards the clamping portion is arranged at the edge of the ventilating portion, the clamping portion penetrates through a through hole formed in the valve body and is clamped with the valve body, a plurality of ventilating grooves are formed in the ventilating portion, the ventilating grooves are communicated with air holes of the valve body, and the sealing portion is in interference fit with the valve body;
The gland is fixed on the outer side of the valve body and is provided with an air outlet hole communicated with the outer side of the sealing part;
and the breathable film covers the breathable groove on the soft rubber sealing sleeve and is fixed with the soft rubber sealing sleeve or the gland.
2. The internal umbrella type blast-remediating balanced explosion-proof valve as recited in claim 1, wherein: the valve body and the butt joint face of the soft rubber sealing sleeve are provided with a raised annular part, the air holes are located in the annular part, and the sealing part of the soft rubber sealing sleeve is in interference fit with the annular part.
3. the internal umbrella type blast-remediating type of balanced explosion-proof valve as set forth in claim 2, wherein: the middle of the valve body is provided with a clamping hole, the clamping portion of the soft rubber sealing sleeve is provided with a protruding portion, the clamping portion penetrates through the clamping hole, and the protruding portion on the clamping portion is clamped with the clamping hole.
4. A balance explosion-proof valve of the built-in umbrella type blast repairing type according to claim 3, wherein: the inner surface of the gland is provided with an annular bulge matched with the edge of the breathable part of the soft rubber sealing sleeve, the annular bulge of the gland is provided with a communicating hole communicated with the air outlet hole, and the annular bulge is abutted against the side surface of the soft rubber sealing sleeve or provided with a gap.
5. The built-in umbrella type blast-repairing balanced burst valve of any one of claims 1 to 4, wherein: the valve body is also provided with an installation interface connected with the battery pack, and the installation interface is a buckle or a thread.
6. The internal umbrella type blast-modifying balanced burst valve of claim 5, wherein: the clamping portion, the ventilation portion and the sealing portion are of an integrated structure.
7. The internal umbrella type blast-remediating balanced explosion-proof valve as recited in claim 6, wherein: one side of the valve body installation interface is provided with an annular clamping groove, and a sealing ring is arranged in the annular clamping groove.
8. The internal umbrella type blast-modifying balanced burst valve of claim 5, wherein: the breathable film is an e-PTFE material film.
9. The internal umbrella type blast-modifying balanced burst valve of claim 5, wherein: the breathable film is fixed with the soft rubber sealing sleeve or the gland through hot melting welding or ultrasonic welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920772388.5U CN209747617U (en) | 2019-05-27 | 2019-05-27 | Balance explosion-proof valve with built-in umbrella type blasting repairing type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920772388.5U CN209747617U (en) | 2019-05-27 | 2019-05-27 | Balance explosion-proof valve with built-in umbrella type blasting repairing type |
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| Publication Number | Publication Date |
|---|---|
| CN209747617U true CN209747617U (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920772388.5U Active CN209747617U (en) | 2019-05-27 | 2019-05-27 | Balance explosion-proof valve with built-in umbrella type blasting repairing type |
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| CN (1) | CN209747617U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113233021A (en) * | 2021-05-28 | 2021-08-10 | 中冶宝钢技术服务有限公司 | Powder storage device and powder filling method |
| CN114678651A (en) * | 2022-04-14 | 2022-06-28 | 北京科易动力科技有限公司 | Explosion-proof valve and battery pack with same |
| CN114744361A (en) * | 2022-04-14 | 2022-07-12 | 北京科易动力科技有限公司 | Ejector pin type explosion-proof valve and battery pack with same |
-
2019
- 2019-05-27 CN CN201920772388.5U patent/CN209747617U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113233021A (en) * | 2021-05-28 | 2021-08-10 | 中冶宝钢技术服务有限公司 | Powder storage device and powder filling method |
| CN113233021B (en) * | 2021-05-28 | 2022-07-19 | 中冶宝钢技术服务有限公司 | Powder storage device and powder filling method |
| CN114678651A (en) * | 2022-04-14 | 2022-06-28 | 北京科易动力科技有限公司 | Explosion-proof valve and battery pack with same |
| CN114744361A (en) * | 2022-04-14 | 2022-07-12 | 北京科易动力科技有限公司 | Ejector pin type explosion-proof valve and battery pack with same |
| CN114678651B (en) * | 2022-04-14 | 2024-04-19 | 北京科易动力科技有限公司 | Explosion-proof valve and battery pack with same |
| CN114744361B (en) * | 2022-04-14 | 2024-04-19 | 北京科易动力科技有限公司 | Ejector pin type explosion-proof valve and battery pack with same |
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