CN208507799U - A kind of new energy electric motor vehicle battery pack explosion-proof valve - Google Patents
A kind of new energy electric motor vehicle battery pack explosion-proof valve Download PDFInfo
- Publication number
- CN208507799U CN208507799U CN201821228621.5U CN201821228621U CN208507799U CN 208507799 U CN208507799 U CN 208507799U CN 201821228621 U CN201821228621 U CN 201821228621U CN 208507799 U CN208507799 U CN 208507799U
- Authority
- CN
- China
- Prior art keywords
- explosion
- ventilated membrane
- proof valve
- waterproof ventilated
- protection cap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000012528 membrane Substances 0.000 claims abstract description 58
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 238000003466 welding Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 238000009738 saturating Methods 0.000 claims 1
- 239000003292 glue Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 239000000428 dust Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Gas Exhaust Devices For Batteries (AREA)
Abstract
The utility model discloses a kind of new energy electric motor vehicle battery pack explosion-proof valves, belong to battery technology field, including waterproof ventilated membrane protection cap, waterproof ventilated membrane protection cap carrier, waterproof ventilated membrane, explosion-proof valve body, sensor and sealing ring；Wherein, balance hole and explosionproof hole are provided in the waterproof ventilated membrane protection cap; waterproof ventilated membrane protection cap is connect with waterproof ventilated membrane protection cap carrier; waterproof ventilated membrane protection cap carrier is connect with explosion-proof valve main body screw; waterproof ventilated membrane laser welding is on explosion-proof valve body; sensor threads are connected to explosion-proof valve body, and sealing ring applies glue connection explosion-proof valve main body, and explosion-proof main body is connected through a screw thread with battery pack housing sidewall.Gas is discharged by balance hole when battery pack is worked normally, when battery pack inside and outside differential pressure is less than 25Kpa, balance hole is unable to satisfy gas balance, and explosionproof hole will be exhausted.When pressure difference is greater than 25Kpa, easily-deformable using rubber softness, rubber protection cap is detached from explosion-proof valve body.
Description
Technical field
The utility model belongs to battery technology field, and in particular to a kind of new energy electric motor vehicle battery pack explosion-proof valve.
Background technique
With electric vehicle engineering maturation and it is improved day by day, electric car, hybrid vehicle have slowly come into people
Daily life.Thereupon, the battery pack as electric vehicle core key part, it is also higher and higher to safety requirements.Battery
Inside is the process of thermodynamics and kinetics effect, since moderate pressure rapidly increases inside battery pack, is difficult at this time to battery
Packet carries out Quick air-discharge, in turn results in battery pack and explodes because excessively expanding.
Current existing explosion-proof valve has the following problems:
1, the current safeguard measure of waterproof ventilated membrane is realized by being provided with many apertures in protection cap, not can avoid
Long-time dust accretions block aperture, and blocking waterproof ventilated membrane can not normal exhaust；
2, current product is by some mechanical structures as being clamped, and mechanical structure realizes complexity, at high cost.
Utility model content
The purpose of the utility model is to provide a kind of new energy electric motor vehicle battery pack explosion-proof valves, to solve to deposit in the prior art
Following problem:
1, it avoids using for a long time, the waterproof ventilated membrane protection cap blocking of explosion-proof valve can not normal input and output gas；
2, when pressure difference reaches 25Kpa, waterproof ventilated membrane protection cap rubber protection cap can fall off, and structure is simple, at low cost；
3, increase sensor, pressure in battery pack can be predicted in advance, guarantee driver safety, while reducing in battery pack
Damage parts.
The present invention is achieved through the following technical solutions:
A kind of new energy electric motor vehicle battery pack explosion-proof valve, including waterproof ventilated membrane protection cap 1, waterproof ventilated membrane protection cap carry
Body 4, waterproof ventilated membrane 5, explosion-proof valve body 6, pressure sensor 7 and sealing ring 8；
Wherein, balance hole 2 and explosionproof hole 3, waterproof ventilated membrane protection cap are provided in the waterproof ventilated membrane protection cap 1
1 connect with waterproof ventilated membrane protection cap carrier 4, and waterproof ventilated membrane protection cap carrier 4 is threadedly coupled with explosion-proof valve body 6, waterproof
Ventilated membrane 5 is located between waterproof ventilated membrane protection cap carrier 4 and explosion-proof valve body 6, and laser welding is on explosion-proof valve body 6, pressure
Force snesor 7 is threaded on explosion-proof valve body 6, sealing ring 8 between explosion-proof valve body 6 and battery pack housing sidewall 9,
Sealing ring 8 is located on explosion-proof valve body 6, and explosion-proof valve body 6 is provided with slot above, and slot and sealing ring 8 cooperate, and gluing is reinforced,
Glue connection explosion-proof valve main body 6 is applied, explosion-proof valve body 6 is connected through a screw thread with battery pack housing sidewall 9.
Further, the material of the waterproof ventilated membrane protection cap 1 is rubber, since rubber is easily-deformable.So balance
Dust in hole and explosionproof hole is not easy to accumulate.
Further, the explosionproof hole 3 is in the center of waterproof ventilated membrane protection cap 1, and balance hole 2 is in explosionproof hole 3
Two sides.
Further, the quantity of the balance hole 2 is two, and the aperture of the balance hole is 2-3mm.
Further, the waterproof ventilated membrane 5 with a thickness of 0.2-1mm.
The working principle of the explosion-proof valve is as follows:
By balance hole 2 gas is discharged when battery pack is worked normally, it is flat when battery pack inside and outside differential pressure is less than 25Kpa
Weighing apparatus hole 2 is unable to satisfy gas balance, and explosionproof hole 3 will be exhausted.When pressure difference is greater than 25Kpa, rubber easily-deformable using rubber softness
Glue protection cap is detached from explosion-proof valve body (such as Fig. 3), is directly vented by waterproof ventilated membrane 5.
Compared with prior art, advantages of the present invention is as follows:
1, guarantee that explosion-proof valve can work normally for a long time, inside and outside air pressure balance guarantees that part is injury-free in battery pack；
2, waterproof ventilated membrane protection cap structure is simple, it can be achieved that pressure difference is detached from waterproof ventilated membrane protection cap, knot up to 25Kpa
Structure is simple, reduces cost.
3, pressure difference early warning, guarantee driver safety, even if while find battery pack internal fault solve, avoid damage battery pack
Interior other parts save maintenance cost for driver.If waterproof ventilated membrane protection losing of cover can also be timely feedbacked to driver,
This is to need just be extracted waterproof ventilated membrane protection cap by certain external force.
4, explosion-proof valve is provided with pressure sensor, and pressure in sensor effect detection battery pack gives warning in advance, feeds back to
VCU (entire car controller), VCU, which feed back to the excessive needs of pressure in user's battery pack, to be stopped driving, and is needed specialized department, is checked
Whether it is abnormal in battery pack, convenient for guaranteeing safe driving, while sensor can also detect waterproof ventilated membrane protection cap and be
No to be mounted on product, driver can also be fed back to by such as losing, and need to carry out product maintenance.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of new energy electric motor vehicle battery pack explosion-proof valve of the utility model；
Fig. 2 is a kind of structure of the waterproof ventilated membrane protection cap of new energy electric motor vehicle battery pack explosion-proof valve of the utility model
Schematic diagram；
Fig. 3 is that a kind of waterproof ventilated membrane protection cap of new energy electric motor vehicle battery pack explosion-proof valve of the utility model falls off
Structural schematic diagram；
In figure: waterproof ventilated membrane protection cap 1, balance hole 2, explosionproof hole 3, waterproof ventilated membrane protection cap carrier 4, waterproof and breathable
Film 5, explosion-proof valve body 6, pressure sensor 7, sealing ring 8, battery pack housing sidewall 9.
Specific embodiment
Embodiment 1:
A kind of new energy electric motor vehicle battery pack explosion-proof valve, including waterproof ventilated membrane protection cap 1, waterproof ventilated membrane protection cap carry
Body 4, waterproof ventilated membrane 5, explosion-proof valve body 6, pressure sensor 7 and sealing ring 8；
Wherein, the waterproof ventilated membrane protection cap can protect waterproof ventilated membrane use for a long time and avoid dust accretions,
Prevent extraneous pointed object from destroying, using the easily-deformable feature of rubber, when battery pack inside and outside differential pressure is greater than 25Kpa, waterproof ventilated membrane
Protection cap falls off, and prevents battery pack from exploding, and waterproof ventilated membrane protection cap carrier 4 is directly filled in after molding；The waterproof and breathable
Balance hole 2 and explosionproof hole 3 are provided in film protection cap 1, the balance hole 2 plays balancing battery when battery pack works normally
The effect of packet inside and outside differential pressure；When battery pack inside and outside differential pressure is within 25Kpa, explosionproof hole 3 is opened；Waterproof ventilated membrane protection cap carrier
4 are threadedly coupled with explosion-proof valve body 6, and waterproof ventilated membrane 5 is located between waterproof ventilated membrane protection cap carrier 4 and explosion-proof valve body 6,
Laser welding is on explosion-proof valve body 6,5 permeable watertight of waterproof ventilated membrane, can input and output gas guarantee battery pack in external pressure
Strong balance.Pressure sensor 7 is threaded on explosion-proof valve body 6, the sensor 7 can detecte battery pack inside and outside differential pressure and
Whether waterproof ventilated membrane protection cap falls off；Sealing ring 8 applies glue connection explosion-proof valve main body 6, and the sealing ring 8 can guarantee battery pack
Dustproof and waterproof grade reaches IP67 between product；Explosion-proof main body 6 is connected through a screw thread with battery pack housing sidewall 9.
The explosionproof hole 3 is in the center of waterproof ventilated membrane protection cap 1, and balance hole 2 is in the two sides of explosionproof hole 3.
The quantity of the balance hole 2 is two, and the pore size of balance hole is 3mm.
The waterproof ventilated membrane 5 with a thickness of 0.2mm.
The material of the waterproof ventilated membrane protection cap 1 is rubber, and inside has screw thread and explosion-proof valve body 6 to be threadedly coupled,
Since rubber is easily-deformable, so the dust in balance hole and explosionproof hole is not easy to accumulate.
Claims (5)
1. a kind of new energy electric motor vehicle battery pack explosion-proof valve, which is characterized in that saturating including waterproof ventilated membrane protection cap (1), waterproof
Air film protection cap carrier (4), waterproof ventilated membrane (5), explosion-proof valve body (6), pressure sensor (7) and sealing ring (8)；
Wherein, balance hole (2) and explosionproof hole (3), waterproof ventilated membrane protection are provided in the waterproof ventilated membrane protection cap (1)
Lid (1) is connect with waterproof ventilated membrane protection cap carrier (4), waterproof ventilated membrane protection cap carrier (4) and explosion-proof valve body (6) screw thread
Connection, waterproof ventilated membrane (5) are located between waterproof ventilated membrane protection cap carrier (4) and explosion-proof valve body (6), and laser welding is anti-
On quick-fried valve body (6), pressure sensor (7) is threaded on explosion-proof valve body (6), and sealing ring (8) is located at explosion-proof valve body
(6) on, explosion-proof valve body (6) is provided with slot above, slot and sealing ring (8) cooperation, and gluing is reinforced, explosion-proof valve body (6) with
Battery pack housing sidewall (9) is connected through a screw thread.
2. a kind of new energy electric motor vehicle battery pack explosion-proof valve as described in claim 1, which is characterized in that the waterproof and breathable
The material of film protection cap (1) is rubber.
3. a kind of new energy electric motor vehicle battery pack explosion-proof valve as described in claim 1, which is characterized in that the explosionproof hole
(3) in the center of waterproof ventilated membrane protection cap (1), two sides of the balance hole (2) in explosionproof hole (3).
4. a kind of new energy electric motor vehicle battery pack explosion-proof valve as described in claim 1, which is characterized in that the balance hole
(2) quantity is two, aperture 2-3mm.
5. a kind of new energy electric motor vehicle battery pack explosion-proof valve as described in claim 1, which is characterized in that the waterproof and breathable
Film (5) with a thickness of 0.2-1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821228621.5U CN208507799U (en) | 2018-08-01 | 2018-08-01 | A kind of new energy electric motor vehicle battery pack explosion-proof valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821228621.5U CN208507799U (en) | 2018-08-01 | 2018-08-01 | A kind of new energy electric motor vehicle battery pack explosion-proof valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208507799U true CN208507799U (en) | 2019-02-15 |
Family
ID=65291074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821228621.5U Active CN208507799U (en) | 2018-08-01 | 2018-08-01 | A kind of new energy electric motor vehicle battery pack explosion-proof valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208507799U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109920953A (en) * | 2019-03-27 | 2019-06-21 | 蜂巢能源科技有限公司 | Battery pack explosion-proof valve, battery pack and vehicle |
| CN114188655A (en) * | 2021-11-24 | 2022-03-15 | 士彩材料科技（苏州）有限公司 | An explosion-proof balance valve that automatically realizes blasting at high temperature |
| EP4421944A3 (en) * | 2023-02-01 | 2024-10-16 | MANN+HUMMEL Ventures Pte. Ltd. | Alert system, degassing unit for an electronic housing, and electronic housing comprising degassing unit |
-
2018
- 2018-08-01 CN CN201821228621.5U patent/CN208507799U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109920953A (en) * | 2019-03-27 | 2019-06-21 | 蜂巢能源科技有限公司 | Battery pack explosion-proof valve, battery pack and vehicle |
| CN114188655A (en) * | 2021-11-24 | 2022-03-15 | 士彩材料科技（苏州）有限公司 | An explosion-proof balance valve that automatically realizes blasting at high temperature |
| EP4421944A3 (en) * | 2023-02-01 | 2024-10-16 | MANN+HUMMEL Ventures Pte. Ltd. | Alert system, degassing unit for an electronic housing, and electronic housing comprising degassing unit |
| US12225672B2 (en) | 2023-02-01 | 2025-02-11 | Mann+Hummel Ventures Pte. Ltd. | Alert system, degassing unit for an electronic housing, and electronic housing comprising degassing unit |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 130012 Changchun City Automobile Development Zone, Jilin Province, 1st Floor, 1st Floor, Building 443, Building 443, 10 Middle Gate Patentee after: Changchun Alte Automotive Technology Co.,Ltd. Address before: 130012 Changchun City Automobile Development Zone, Jilin Province, 1st Floor, 1st Floor, Building 443, Building 443, 10 Middle Gate Patentee before: CHANGCHUN KAIDI AUTOMOBILE BODY DESIGN Co.,Ltd. |