CN211798393U - Battery fire extinguishing apparatus, battery pack and power supply - Google Patents
Battery fire extinguishing apparatus, battery pack and power supply Download PDFInfo
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- CN211798393U CN211798393U CN201921897606.4U CN201921897606U CN211798393U CN 211798393 U CN211798393 U CN 211798393U CN 201921897606 U CN201921897606 U CN 201921897606U CN 211798393 U CN211798393 U CN 211798393U
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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 present disclosure relates to a battery fire extinguishing apparatus, a battery pack and a power supply, the battery fire extinguishing apparatus including: the agent storage device is used for storing the fire extinguishing agent and is provided with an air inlet; and connecting device, with store up the agent device intercommunication, will the fire extinguishing agent of storing in the agent device is carried to taking place the electric core monomer of thermal runaway to carry the electric core monomer of thermal runaway to storing up the agent device, this battery fire extinguishing apparatus can realize taking place the electric core monomer of thermal runaway in the battery module and carry out accurate putting out a fire, prevents that thermal runaway phenomenon from taking place on a large scale, and is with low costs, small, simple structure, easy operation when maintaining, and cost of maintenance is low.
Description
Technical Field
The disclosure relates to the field of electric automobile manufacturing, in particular to a battery fire extinguishing device, a battery pack and a power supply.
Background
The power battery system of electric automobile the battery monomer thermal runaway incident of low probability appears, and present battery system often because a battery monomer takes place thermal runaway back diffusion to whole battery system, leads to using this battery system's whole car or energy storage system to burn out completely, and present fire extinguishing technology is difficult to accomplish accurate putting out a fire, and equipment cost is high, bulky, the system is complicated, can't promote comprehensively, and the operation is complicated when maintaining simultaneously, and is with high costs.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a battery fire extinguishing apparatus, this battery fire extinguishing apparatus of this equipment can carry out accurate fire extinguishing to thermal runaway battery monomer, and is with low costs, small, simple structure, easy operation when the maintenance simultaneously, cost of maintenance is low.
In order to achieve the above object, the present disclosure provides a battery fire extinguishing apparatus including:
the agent storage device is used for storing the fire extinguishing agent and is provided with an air inlet; and
and the connecting device is communicated with the agent storage device, conveys the fire extinguishing agent stored in the agent storage device to the battery cell monomer with thermal runaway, and conveys the gas discharged by the battery cell monomer to the agent storage device.
Optionally, a second pressure valve is provided at the air inlet.
Optionally, the agent storage device is provided with a fire extinguishing agent discharge port, the fire extinguishing agent discharge port is provided with a fire extinguishing agent valve, the fire extinguishing agent discharge port is arranged at the bottom of the agent storage device, and the air inlet is arranged on the side wall of the agent storage device.
Optionally, battery fire-extinguishing apparatus still includes the passageway of putting out a fire, electric core monomer has explosion-proof valve, the passageway of putting out a fire sets up explosion-proof valve top, the passageway of putting out a fire with explosion-proof valve corresponds position department and is provided with the exhaust hole, the exhaust hole is sealed by the film that can wash out in the melting, fire extinguishing agent interface and exhaust interface have been seted up to the passageway of putting out a fire, connecting device includes fire extinguishing agent delivery pipe and air duct, fire extinguishing agent delivery pipe one end with fire extinguishing agent discharge port sealing connection, the other end with fire extinguishing agent interface sealing connection, air duct one end with air inlet sealing connection, the other end with exhaust interface sealing connection.
Optionally, a first pressure valve is arranged on the air duct, and the first pressure valve is close to the air inlet.
Optionally, the fire suppressant valve is a one-way pressure relief valve, the fire suppressant valve being openable only from inside the agent storage device to the fire suppressant discharge pipe.
Optionally, the fire suppressant port has a height lower than a height of the fire suppressant discharge port, and the exhaust duct port has a height lower than a height of the fire suppressant discharge port.
Optionally, the connecting device is made of a temperature-resistant and pressure-resistant insulating material.
The utility model provides a battery pack simultaneously, include battery fire-extinguishing apparatus and at least one battery module, the battery module includes a plurality of electric core monomers, battery fire-extinguishing apparatus can electric core monomer is right when taking place thermal runaway electric core monomer the electric core monomer is put out a fire.
The utility model also provides a power, including box and above-mentioned battery pack, store up the setting of agent device and be in the box is outside, the battery module sets up inside the box.
Through above-mentioned technical scheme, can realize taking place the electric core monomer of thermal runaway in the battery module and carry out accurate fire extinguishing, prevent that thermal runaway phenomenon from taking place on a large scale, and simultaneously, this technical scheme is small, and the system is simple, through each battery module of many forked air ducts UNICOM, can realize the public one set of fire extinguishing apparatus of many battery modules, when maintaining, only need wash dry fire extinguishing agent delivery pipe, change the electric core monomer or the battery module of fire extinguishing agent valve and trouble, it can to fill the fire extinguishing agent at last, and easy operation, low cost.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a schematic diagram of the overall structure of a power supply according to an embodiment.
Fig. 2 is a partial structural schematic view of the battery fire extinguishing apparatus of fig. 1.
Fig. 3 is an expanded view of the battery module and the fire extinguishing passage in fig. 1.
Fig. 4 is a schematic view of the structure of the fire extinguishing passage in fig. 1.
Description of the reference numerals
1 air inlet of agent storage device 11
12 second pressure valve 13 discharge port for fire extinguishing agent
14 fire extinguishing agent valve 2 connecting device
21 airway 22 trunk
23-branch 24 fire extinguishing agent discharge pipe
25 first pressure valve 3 battery module
4 fire extinguishing channel 41 vent hole
42 film 43 fire extinguishing agent interface
44 exhaust interface 5 box
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, unless otherwise specified, the terms of orientation such as "upper, lower, left, and right" used herein refer to the upper, lower, left, and right sides of the structures shown in the drawings, "inner and outer" refer to the inner and outer sides of the structures shown in the drawings, and "far and near" refer to the distance between the structures shown in the drawings.
As shown in fig. 1 and 2, the present disclosure first provides a battery fire extinguishing apparatus including: a reservoir 1, and a connecting device 2.
Store up 1 inside storage of agent device and have the fire extinguishing agent, be used for putting out a fire the fire control to thermal runaway electric core monomer when battery module 3's electric core monomer takes place thermal runaway, in this technical scheme, preferred liquid fire extinguishing agent selects water as the fire extinguishing agent to store in this embodiment and stores in storing up 1 inside of agent device. Agent storage device 1 is provided with air inlet 11 and fire extinguishing agent discharge port 13, air inlet 11 position department is provided with second pressure valve 12, fire extinguishing agent discharge port 13 position department is provided with fire extinguishing agent valve 14, fire extinguishing agent valve 14 is one-way valve, only can connect discharge port 13 to putting out a fire by agent storage device 1 is inside to open, when electric core monomer takes place the thermal runaway, second pressure valve 12 and fire extinguishing agent valve 14 are opened, high temperature high pressure gas passes through air inlet 11 and gets into agent storage device 1, the fire extinguishing agent is put out a fire to thermal runaway electric core monomer through fire extinguishing agent discharge port 13 discharge.
The fire extinguishing agent discharge port 13 sets up in the bottom of storing up agent device 1, the discharge of the fire extinguishing agent of being convenient for, and air inlet 11 sets up on the lateral wall of storing up agent device 1, and it should be noted that, when placing the fire extinguishing agent in storing up agent device 1, the fire extinguishing agent should not cross air inlet 11, prevents to block air inlet 11 and leads to the unable entering of the high temperature high-pressure gas that thermal runaway electricity core monomer discharged to store up agent device 1.
Connecting device 2 is connected with storage agent device 1 for carry the fire extinguishing agent who stores in storage agent device 1 to taking place the electric core monomer of thermal runaway, collect the electric core monomer spun high temperature high pressure gas of thermal runaway simultaneously, and carry to storage agent device 1. Connecting device 2 includes air duct 21 and fire extinguisher agent discharge pipe 24, the one end and the 11 sealing connection of air inlet of air duct 21, fire extinguisher agent discharge pipe 24 one end and fire extinguishing agent discharge port 13 sealing connection, air duct 21 is responsible for collecting the high temperature high-pressure gas of spun among the thermal runaway electric core monomer to guide it to air inlet 11, fire extinguishing agent discharge pipe 24 is responsible for carrying the fire extinguishing agent by fire extinguishing agent discharge port 13 exhaust to having the free battery module 3 of thermal runaway electric core. Wherein, the position that air duct 21 is close to air inlet 11 is provided with first pressure valve 25, and first pressure valve 25 can discharge inside high temperature high-pressure gas and carry out the pressure release when the inside atmospheric pressure of air duct 21 is too big, prevents that air duct 21 from damaging because of the pressure is too big. The entire connection device 2 is made of a temperature-resistant, pressure-resistant insulating material to ensure the safety of the entire connection device 2.
Battery fire-extinguishing apparatus is used for carrying out the fire control to battery module 3 and puts out a fire, and battery module 3 includes a plurality of electric core monomers, and each electric core monomer top all can set up the explosion-proof valve, can spout its inside high temperature high-pressure gas when electric core monomer takes place thermal runaway, and when a plurality of electric core monomers make up into battery module 3, this explosion-proof valve is a straight line and arranges the cloth. This battery fire extinguishing apparatus of this disclosure is provided with passageway 4 of putting out a fire above explosion-proof valve, as shown in fig. 3, fig. 4, passageway 4 of putting out a fire is made by high temperature resistant insulating material, can collect the high temperature high-pressure gas of thermal runaway electric core monomer exhaust in, pours the fire extinguishing agent into the free explosion-proof valve of thermal runaway electric core. The fire extinguishing channel 4 is arranged above the explosion-proof valve, the bottom of the main body part of the fire extinguishing channel is provided with an exhaust hole 41 corresponding to the explosion-proof valve, the size of the exhaust hole 41 is matched with the size of the explosion-proof valve, the explosion-proof valve is ensured to be included in the exhaust hole 41, the top of the main body of the fire extinguishing channel 4 is provided with two openings, namely a fire extinguishing agent interface 43 and an exhaust interface 44, the fire extinguishing agent interface 43 is hermetically connected with the other end of the fire extinguishing agent discharge pipe 24, the exhaust interface 44 is hermetically connected with the other end of the air guide pipe 21, the exhaust hole 41 is sealed by a meltable flushable film 42, and thus when the electric core monomer is out of thermal control, high-temperature high-pressure gas melts or flushes the film 42, the fire extinguishing agent is filled into the explosion-.
The heights of the fire extinguishing agent interface 43 and the exhaust interface 44 of the fire extinguishing channel 4 are lower than the height of the fire extinguishing agent discharge port 13, so that the fire extinguishing agent in the agent storage device 1 can smoothly flow into the fire extinguishing channel 4 from the agent storage device 1, and the thermal runaway cell monomer is subjected to fire extinguishing and fire fighting.
The present disclosure also provides a battery assembly comprising a battery fire extinguishing apparatus and at least one battery module 3, one battery module 3 is arranged in match with one fire extinguishing channel 4, in this embodiment, the battery fire extinguishing apparatus is provided with only one agent storage device 1, i.e., a plurality of battery modules 3 share one agent storage device 1, the agent storage device 1 is provided with only one air inlet 11, the plurality of battery modules 3 are connected to the same air inlet 11 through an air duct 21 having a plurality of branches 23, the branches 23 of the gas guide pipe 21 are communicated with each other, the tail end of each branch 23 is hermetically connected with the exhaust interface 44 of the fire extinguishing channel 4 corresponding to one battery module 3, the tail end of the main body 22 of the gas guide pipe 21 is hermetically connected with the gas inlet 11, and no matter which battery module 3 is out of control due to heat, the exhausted high-temperature and high-pressure gas can be led into the agent storage device 1 through the gas guide pipe 21.
The agent storage device 1 can be provided with a plurality of fire extinguishing agent discharge ports 13, each fire extinguishing agent discharge port 13 is provided with a fire extinguishing agent valve 14, the number of the fire extinguishing agent discharge ports 13 is consistent with the number of the battery modules 3, each fire extinguishing agent discharge port 13 is connected to the fire extinguishing agent interface 43 of the fire extinguishing channel 4 corresponding to one battery module 3 through one fire extinguishing agent discharge pipe 23, and no matter which battery module 3 is out of control of heat, the fire extinguishing agent can be transmitted to the battery module 3 through the fire extinguishing agent interface 43.
The utility model also provides a power, including box 5 and above-mentioned battery pack, store up agent device 1 and set up in the box 5 outsidely, battery module 3 sets up inside box 5.
The working process of the present disclosure will be further described below to facilitate the understanding of the design idea of the present disclosure by those skilled in the art.
After certain electric core monomer in battery module 3 takes place thermal runaway, the explosion-proof valve of its top is opened, high temperature high-pressure gas blowout, in the entering exhaust hole 41, melt the film 42 of exhaust hole 41 top fast and then go into fire extinguishing channel 4, and transmit to the air duct 21 through fire extinguishing channel 4, after the atmospheric pressure in air duct 21 and the fire extinguishing channel 4 risees to the certain degree, second pressure valve 12 is opened, high temperature high-pressure gas gets into in storing up agent device 1, store up agent device 1 internal pressure and begin to constantly increase.
When the explosion-proof valve is opened, the battery management system detects the phenomenon and judges that the battery module 3 generates thermal runaway, the fire extinguishing agent valve 14 at the fire extinguishing agent discharge port 13 connected with the battery module 3 is immediately controlled to be opened, because the pressure in the agent storage device 1 is increased, the fire extinguishing agent enters the fire extinguishing channel 4 from the fire extinguishing agent discharge pipe 24 under the action of the pressure, at the moment, except that the film 42 above the exhaust hole 41 corresponding to the electric core monomer generating the thermal runaway is melted, all the other exhaust holes 41 are still sealed by the film 42, the fire extinguishing agent can only enter the explosion-proof valve of the electric core monomer generating the thermal runaway through the exhaust hole 41 melted by the film 42, and cannot leak to the outside of the fire extinguishing channel 4 through all the exhaust holes 41.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure. For example, the single air inlet of the agent storage device 1 may be changed to a multi-air inlet.
It should be noted that, the technical features described in the above embodiments may be combined in any suitable manner without departing from the scope of the present disclosure, for example, the number of the agent storage devices 1 may be set according to actual needs, that is, a plurality of battery fire extinguishing apparatuses and a plurality of battery modules may be combined with each other in a battery assembly, and in order to avoid unnecessary repetition, the present disclosure does not separately describe various possible combinations.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. A battery fire suppression apparatus, comprising:
the agent storage device is used for storing the fire extinguishing agent and is provided with an air inlet; and
and the connecting device is communicated with the agent storage device, conveys the fire extinguishing agent stored in the agent storage device to the battery cell monomer with thermal runaway, and conveys the gas discharged by the battery cell monomer to the agent storage device.
2. The battery fire suppression apparatus of claim 1, wherein a second pressure valve is disposed at the air inlet.
3. The battery fire extinguishing apparatus according to claim 2, wherein the agent storage device is opened with a fire extinguishing agent discharge port provided with a fire extinguishing agent valve, the fire extinguishing agent discharge port is provided at the bottom of the agent storage device, and the air inlet is provided on the side wall of the agent storage device.
4. The battery fire extinguishing apparatus according to claim 3, further comprising a fire extinguishing channel, wherein the battery cell body is provided with an explosion-proof valve, the fire extinguishing channel is arranged above the explosion-proof valve, and a vent hole is arranged at a position of the fire extinguishing channel corresponding to the explosion-proof valve and is sealed by a fusible and flushable film; fire extinguishing agent interface and exhaust interface have been seted up to the passageway of putting out a fire, connecting device includes fire extinguishing agent delivery pipe and air duct, fire extinguishing agent delivery pipe one end with fire extinguishing agent discharge port sealing connection, the other end with fire extinguishing agent interface sealing connection, air duct one end with air inlet sealing connection, the other end with exhaust interface sealing connection.
5. The battery fire suppression apparatus of claim 4, wherein a first pressure valve is disposed on said airway, said first pressure valve being proximate to said air inlet.
6. The battery fire suppression apparatus of claim 4, wherein the fire suppressant valve is a one-way valve that can only be opened from inside the agent storage device to the fire suppressant discharge pipe.
7. The battery fire suppression apparatus of claim 4, wherein the fire suppressant interface is lower in height than the fire suppressant discharge port, and the exhaust interface is lower in height than the fire suppressant discharge port.
8. The battery fire suppression apparatus of claim 1, wherein the connection device is made of a temperature and pressure resistant insulating material.
9. A battery assembly, characterized by comprising the battery fire extinguishing apparatus of any one of claims 1 to 8 and at least one battery module, wherein the battery module comprises a plurality of battery cell units, and the battery fire extinguishing apparatus can extinguish the battery cell units when the battery cell units are out of control thermally.
10. A power supply comprising a case and the battery module of claim 9, wherein the agent storage device is disposed outside the case, and the battery module is disposed inside the case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921897606.4U CN211798393U (en) | 2019-11-06 | 2019-11-06 | Battery fire extinguishing apparatus, battery pack and power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921897606.4U CN211798393U (en) | 2019-11-06 | 2019-11-06 | Battery fire extinguishing apparatus, battery pack and power supply |
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| Publication Number | Publication Date |
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| CN211798393U true CN211798393U (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921897606.4U Active CN211798393U (en) | 2019-11-06 | 2019-11-06 | Battery fire extinguishing apparatus, battery pack and power supply |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112704832A (en) * | 2020-12-29 | 2021-04-27 | 长城汽车股份有限公司 | Battery box and battery package |
| CN112952177A (en) * | 2021-01-25 | 2021-06-11 | 中国第一汽车股份有限公司 | Power battery fire suppression device and power battery |
| CN113782848A (en) * | 2021-08-27 | 2021-12-10 | 中国第一汽车股份有限公司 | Vehicle power battery fire suppression device and method, power battery and vehicle |
| WO2022099661A1 (en) * | 2020-11-13 | 2022-05-19 | 江苏时代新能源科技有限公司 | Box, battery, electrical device, and method for manufacturing battery |
-
2019
- 2019-11-06 CN CN201921897606.4U patent/CN211798393U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022099661A1 (en) * | 2020-11-13 | 2022-05-19 | 江苏时代新能源科技有限公司 | Box, battery, electrical device, and method for manufacturing battery |
| CN112704832A (en) * | 2020-12-29 | 2021-04-27 | 长城汽车股份有限公司 | Battery box and battery package |
| CN112952177A (en) * | 2021-01-25 | 2021-06-11 | 中国第一汽车股份有限公司 | Power battery fire suppression device and power battery |
| CN113782848A (en) * | 2021-08-27 | 2021-12-10 | 中国第一汽车股份有限公司 | Vehicle power battery fire suppression device and method, power battery and vehicle |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee after: Xinwangda Power Technology Co.,Ltd. Address before: 518107 Xinwangda Industrial Park, No.18, Tangjia south, Gongming street, Guangming New District, Shenzhen City, Guangdong Province Patentee before: SUNWODA ELECTRIC VEHICLE BATTERY Co.,Ltd. |
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| CP03 | Change of name, title or address |