CN113764772A - Fire suppression device and method for power battery pack, power battery pack and vehicle - Google Patents
Fire suppression device and method for power battery pack, power battery pack and vehicle Download PDFInfo
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- CN113764772A CN113764772A CN202110992196.7A CN202110992196A CN113764772A CN 113764772 A CN113764772 A CN 113764772A CN 202110992196 A CN202110992196 A CN 202110992196A CN 113764772 A CN113764772 A CN 113764772A
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- 230000001629 suppression Effects 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 28
- 239000000110 cooling liquid Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 39
- 239000002826 coolant Substances 0.000 claims description 17
- 238000009413 insulation Methods 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000006698 induction Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 238000009792 diffusion process Methods 0.000 abstract description 4
- 230000003111 delayed effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000001939 inductive effect Effects 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004964 aerogel Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a fire suppression device and method for a power battery pack, the power battery pack, a vehicle, a method, the battery pack and the vehicle, and belongs to the technical field of power battery safety. The invention discloses a fire suppression device and method for a power battery pack, the power battery pack and a vehicle, wherein the fire suppression of the battery is realized by using cooling liquid in a water-cooling plate, a fire extinguishing pipeline is arranged at the upper part of a battery core, when the thermal runaway of the battery occurs, the impact force of a valve of the battery core is enough to break through the lower layer of a fire extinguishing flow passage, so that the cooling liquid enters the interior of the battery core through a breaking hole, and the thermal runaway diffusion in a battery pack system is delayed.
Description
Technical Field
The invention discloses a fire suppression device and method for a power battery pack, the power battery pack, a vehicle, a method, the battery pack and the vehicle, and belongs to the technical field of power battery safety.
Background
With the increase of the holding capacity of electric vehicles, thermal runaway accidents are increasingly frequent. The safety problem of electric vehicles has become a focus of social attention. The lithium battery has the risk of thermal runaway under the conditions of short circuit, overcharge and overdischarge, temperature overrun, mechanical damage and the like. Along with the continuous promotion of electric core energy density, lithium cell thermal runaway's danger also is increasing constantly. The vehicle power battery pack is a relatively closed space, and a large amount of heat can be released by thermal runaway of a single battery cell, so that linkage thermal runaway of other battery cells in the battery pack is further caused.
The conventional power battery product is only provided with flame retardant devices such as a fireproof plate and the like in the battery pack so as to delay the diffusion speed of open fire to the outside of the power battery pack, but cannot prevent the spread of thermal runaway in the battery pack. Therefore, a fire suppression device for a power battery pack is needed to solve the above technical problems in the prior art.
Disclosure of Invention
The invention aims to solve the problem that the conventional power battery product cannot prevent the thermal runaway from spreading in a battery pack, and provides a fire suppression device and method for the power battery pack, the power battery pack and a vehicle.
The invention aims to solve the problems and is realized by the following technical scheme:
the utility model provides a conflagration suppression device of power battery package, is including setting up at least one battery module on the water-cooling board, be provided with the pipeline of putting out a fire on the battery module, the one end of putting out a fire pipeline and water-cooling board is connected with water pump one end respectively through two three-way valves, the water pump other end is connected with radiator one end, the radiator other end is connected with the other end of water-cooling board, coolant liquid in the radiator is provided power by the water pump and can flow in the cavity of putting out a fire pipeline and water-cooling board respectively through controlling two three-way valves.
Preferably, the pipeline of putting out a fire includes the runner of putting out a fire with the laminating of battery module, the runner of putting out a fire is corresponding and nested the safety cover on it with the electric core relief valve of battery module, the runner one end of putting out a fire is connected with two three-way valves through the connecting pipe of putting out a fire, and the other end passes through the end cap and constitutes closed cavity.
Preferably, the battery module comprises at least two battery cells, and a heat insulation pad is arranged between every two adjacent battery cells.
Preferably, the fire extinguishing line has an S-shape or a U-shape.
Preferably, still including setting up the inductive pick-up on the water-cooling board, be provided with cooling liquid pressure sensor in the connecting pipe of putting out a fire, inductive pick-up, battery module and water pump respectively with on-vehicle BMS battery system electric connection.
Preferably, the vehicle-mounted BMS battery system, the two-position three-way valve 6 and the cooling liquid pressure sensor are electrically connected with the VCU vehicle control unit respectively.
A fire suppression method for a power battery pack includes:
step S10, the vehicle-mounted BMS battery system obtains power battery pack parameters, and the power battery pack parameters at least comprise: battery pack pressure, pressure change rate, cell temperature, and the like;
step S20, judging whether the at least two items of data of the power battery pack parameters exceed a set threshold:
if yes, acquiring the water pump state, generating an alarm instruction and sending the alarm instruction to the VCU vehicle control unit to execute the next step;
no, repeat step S10;
step S30, if the water pump is in an open state, the VCU vehicle controller generates a coolant releasing instruction after receiving the alarm instruction and sends the coolant releasing instruction to the two-position three-way valve, and the two-position three-way valve converts the coolant into a fire extinguishing pipeline after receiving the coolant releasing instruction;
step S40, when the cooling liquid pressure sensor can not detect the cooling liquid, generating a stop instruction and sending the stop instruction to the VCU vehicle control unit, and sending the stop instruction to the vehicle-mounted BMS battery system after the VCU vehicle control unit receives the stop instruction;
and step S50, sending a water supply pump by the vehicle-mounted BMS battery system after receiving the stop command.
A power battery pack, comprising: the battery box and the fire suppression device of the power battery pack are disclosed.
Preferably, the battery box body comprises a battery lower box body and a battery upper cover which are mutually buckled, and the water-cooling plate is fixed at the bottom of the battery lower box body.
A vehicle comprises a vehicle body and the power battery pack.
Compared with the prior art, the invention has the following beneficial effects:
the invention discloses a fire suppression device and method for a power battery pack, the power battery pack and a vehicle, wherein the fire suppression device and method for the power battery pack are characterized in that a fire extinguishing flow passage is arranged at the upper part of a battery cell, the fire extinguishing flow passage is connected with a two-way three-way valve through a fire extinguishing connecting pipe, when the battery normally works, cooling liquid flows in a water cooling plate, when the battery is out of control, the two-way three-way valve is controlled, the cooling liquid flows into the fire extinguishing flow passage, the impact force of a valve of the battery cell can sufficiently burst the lower layer of the fire extinguishing flow passage when the battery is out of control, a plurality of burst holes are formed in the lower layer of the fire extinguishing flow passage, the cooling liquid enters the battery cell through the burst holes, the diffusion of the out of control heat in a battery pack system is delayed, passengers in the vehicle are protected, and the loss in the vehicle is reduced to the maximum extent.
Drawings
Fig. 1 is a schematic structural view of a fire suppression device of a power battery pack according to the present invention.
Fig. 2 is a partial structural schematic diagram of a fire suppression device of a power battery pack according to the present invention.
Fig. 3 is a schematic structural view of a fire extinguishing pipeline of the fire suppression device of the power battery pack.
Fig. 4 is an enlarged view of a fire suppression device of a power battery pack according to the present invention at a position a.
Fig. 5 is a schematic diagram of the electrical connection of a quick-change power cell assembly with delayed heat diffusion.
Fig. 6 is a schematic structural diagram of a power battery pack according to the present invention.
Fig. 7 is a schematic structural diagram of a battery box of a power battery pack according to the invention.
The system comprises a battery lower box body 1, a battery module 2, a fire extinguishing pipeline 3, a plug 31, a protective cover 32, a fire extinguishing flow channel 33, a fire extinguishing flow channel interface 34, a water cooling plate 4, a fire extinguishing connecting pipe 5, a two-position three-way valve 6, a battery upper cover 7, a water pump 8 and a radiator 9.
Detailed Description
The invention is further illustrated below with reference to the accompanying figures 1-7:
the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, a first embodiment of the present invention provides a fire suppression device for a power battery pack based on the prior art, including: the battery module 2, the fire extinguishing pipeline 3, the water cooling plate 4, the two-position three-way valve 6, the water pump 8 and the radiator 9, and the specific structure and connection mode of the above-mentioned components will be described one by one.
As shown in fig. 2, at least one battery module 2 is installed on the water-cooling plate 4, the embodiment is 3 battery modules 2, 3 battery modules 2 are uniformly and symmetrically arranged on the water-cooling plate 4, each battery module 2 includes at least two battery cells 21, a heat insulation pad 22 is installed between two adjacent battery cells 21, the number of the battery cells 21 is adjusted, the design of module schemes with different lengths can be realized, the heat insulation pad 22 is a non-metal material, including but not limited to aerogel, rubber and the like, and the module can absorb large energy and be compressed during expansion, thereby ensuring normal expansion of the module.
Install the pipeline 3 of putting out a fire on battery module 2, as shown in fig. 3, the runner 33 of putting out a fire of passageway 3 and the laminating of battery module 2 of putting out a fire, the runner 33 of putting out a fire is corresponding and its nested safety cover 32 with battery module 2's electric core relief valve. The fire extinguishing flow channel 33 is made of nonmetal such as PP or PE, so as to ensure that the impact force of the open valve of the battery cell is enough to break through the lower layer of the fire extinguishing flow channel when the thermal runaway occurs, as shown in fig. 4, one end of the fire extinguishing flow channel is provided with a fire extinguishing flow channel connector 34, the fire extinguishing flow channel connector 34 is connected with the two-position three-way valve 6 through the fire extinguishing connecting pipe 5, the other end of the fire extinguishing flow channel is provided with a closed cavity through a plug 31, so that the broken opening of the fire extinguishing flow channel 33 is ensured to be downward, and the cooling liquid can accurately flow into the runaway battery cell. The protective cover 32 is designed in an n-shape, and this design leaves the lower surface of the fire extinguishing flow path 33 unprotected, and the other three surfaces protected. The protective cover 32 is made of mica plates, has the characteristics of high strength and insulation, and ensures that the upper layer of the fire extinguishing flow channel is not broken when the thermal runaway occurs. The pipeline 3 of putting out a fire is S-shaped or U-shaped, and is different according to the quantity and the distribution of battery module 2, presents different shapes, and this embodiment is the S-shaped.
The fire extinguishing flow channel 33 of the fire extinguishing pipeline 3 and one end of the water cooling plate 4 are respectively connected with one end of a water pump 8 through a cooling liquid pipeline through a two-position three-way valve 6, the other end of the water pump 8 is connected with one end of a radiator 9, the other end of the radiator 9 is connected with the other end of the water cooling plate 4, cooling liquid in the radiator 9 is powered by the water pump 8 and can flow in cavities of the fire extinguishing flow channel 33 and the water cooling plate 4 respectively through controlling the two-position three-way valve 6. The water cooling plate 4 is of a porous micro-channel section structure, the materials include but are not limited to high-strength easily-formed materials such as aluminum alloy, titanium alloy and iron alloy, and after the water cooling plate is connected with a thermal management system, cooling liquid flows inside the water cooling plate, so that heating and cooling of the battery module 2 can be realized, fixing safety of the battery module can be realized, the weight of a lower box assembly is reduced, and lightweight design of a battery pack is realized.
Be fixed with the inductive pick-up on water-cooling plate 4, be provided with in the connecting pipe 5 of putting out a fire cooling liquid pressure sensor and as shown in fig. 5, inductive pick-up, battery module 2 and water pump 8 respectively with on-vehicle BMS battery system electric connection, on-vehicle BMS battery system, two three-way valves 6 and cooling liquid pressure sensor respectively with VCU vehicle control unit electric connection.
The composition and the connection relationship between the fire suppression devices of the power battery pack are described above, and the suppression method thereof will be described below, including:
step S10, the vehicle BMS battery system obtains the parameters of the power battery pack, the parameters of the power battery pack at least comprise: the battery pack pressure, the pressure change rate, the cell temperature, the temperature change rate, the cell voltage, the voltage change rate and the like, and the cooling liquid flows in the water cooling plate 4 when the battery works normally.
Step S20, determining whether at least two items of data of the power battery pack parameter exceed a set threshold, including: whether the battery pack pressure exceeds a threshold P1; whether the rate of change of pressure exceeds a threshold dP 1; whether the cell temperature exceeds a threshold T1; whether the rate of temperature change exceeds a threshold dT 1; whether the cell voltage exceeds a threshold value V1 and whether the voltage change rate exceeds dV 1:
when at least two items of data of the parameters of the upper power battery pack are judged to exceed a set threshold value, namely at the moment, the battery is out of control due to heat, the impact force of high-temperature gas sprayed by the battery cell pressure release valve breaks through the lower layer of the fire extinguishing flow channel 33, a plurality of breaking holes are formed in the lower layer of the fire extinguishing flow channel 33, the induction sensor gives an alarm to the vehicle-mounted BMS battery system, and then the state of the water pump 8 is obtained, an alarm instruction is generated and sent to the VCU vehicle controller to execute the next step;
otherwise, repeating the step S10 and repeatedly acquiring the power battery pack parameters.
In step S30, the water pump 8 is in operation and remains in operation, and if the water pump 8 is off, the water pump is turned on. If the water pump 8 is in an open state, the VCU vehicle controller generates a coolant releasing instruction after receiving the alarm instruction and sends the coolant releasing instruction to the two-position three-way valve 6, the two-position three-way valve 6 converts the coolant into the fire extinguishing flow channel 33 after receiving the coolant releasing instruction, and the coolant enters the battery cell 31 through the breaking hole. The coolant entering the battery cell 31 is rapidly gasified, and the internal temperature of the battery cell is rapidly reduced through gasification heat absorption, so that the heat transfer from the coolant to the adjacent battery cell is reduced.
Step S40, when the cooling liquid pressure sensor can not detect the cooling liquid, generating a stop instruction and sending the stop instruction to the VCU vehicle control unit, and sending the stop instruction to the vehicle-mounted BMS battery system after the VCU vehicle control unit receives the stop instruction;
and step S50, sending a water supply pump by the vehicle-mounted BMS battery system after receiving the stop command.
A second embodiment and a third embodiment are also disclosed on the basis of the first embodiment, and the second embodiment is a power battery pack, as shown in fig. 6 to 7, including: the fire suppression device for the power battery pack comprises a battery box body and the fire suppression device for the power battery pack, wherein the battery box body comprises a lower battery box body 1 and an upper battery cover 7 which are mutually buckled, a water cooling plate 4 is fixed at the bottom of the lower battery box body 1 in a bonding mode and the like, and the upper battery cover 7 is fixed at the top of the lower battery box body 1 through bolts. A third embodiment is a vehicle including a vehicle body and the power battery pack of the second embodiment.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. It is therefore intended that the invention not be limited to the exact details and illustrations described and illustrated herein, but fall within the scope of the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a conflagration suppression device of power battery package, its characterized in that, is including setting up at least one battery module (2) on water-cooling board (4), be provided with fire-extinguishing pipeline (3) on battery module (2), the one end of fire-extinguishing pipeline (3) and water-cooling board (4) is connected with water pump (8) one end respectively through two three-way valve (6), the water pump (8) other end is connected with radiator (9) one end, the other end of radiator (9) is connected with the other end of water-cooling board (4), coolant liquid in radiator (9) is provided power by water pump (8) and can flow in the cavity of fire-extinguishing pipeline (3) and water-cooling board (4) respectively through controlling two three-way valve (6).
2. The fire suppression device of the power battery pack as claimed in claim 1, wherein the fire extinguishing pipeline (3) comprises a fire extinguishing flow channel (33) attached to the battery module (2), the fire extinguishing flow channel (33) corresponds to the cell pressure relief valve of the battery module (2) and is nested with a protective cover (32), one end of the fire extinguishing flow channel (33) is connected with the two-position three-way valve (6) through a fire extinguishing connecting pipe (5), and the other end of the fire extinguishing flow channel forms a closed cavity through a plug (31).
3. The fire suppression device of the power battery pack according to claim 2, wherein the battery module (2) comprises at least two battery cells (21), and a heat insulation pad (22) is arranged between two adjacent battery cells (21).
4. A fire suppression device for a power battery pack according to claim 3, wherein the fire extinguishing pipe (3) is S-shaped or U-shaped.
5. The fire suppression device of the power battery pack according to claim 4, further comprising an induction sensor arranged on the water cooling plate (4), wherein a cooling liquid pressure sensor is arranged in the fire extinguishing connecting pipe (5), and the induction sensor, the battery module (2), the cooling liquid sensor and the water pump (8) are respectively electrically connected with the vehicle-mounted BMS battery system.
6. The fire suppression device of a power battery pack according to claim 5, wherein the vehicle-mounted BMS battery system, the two-position three-way valve (6) and the cooling liquid pressure sensor are electrically connected with the VCU vehicle control unit respectively.
7. A fire suppression method for a power battery pack is characterized by comprising the following steps:
step S10, the vehicle-mounted BMS battery system obtains power battery pack parameters, and the power battery pack parameters at least comprise: battery pack pressure, pressure change rate, cell temperature, and the like;
step S20, judging whether the at least two items of data of the power battery pack parameters exceed a set threshold:
if yes, acquiring the water pump state, generating an alarm instruction and sending the alarm instruction to the VCU vehicle control unit to execute the next step;
no, repeat step S10;
step S30, if the water pump is in an open state, the VCU vehicle controller generates a coolant releasing instruction after receiving the alarm instruction and sends the coolant releasing instruction to the two-position three-way valve (6), and the two-position three-way valve (6) converts the coolant into the fire extinguishing pipeline (3) after receiving the coolant releasing instruction;
step S40, when the cooling liquid pressure sensor can not detect the cooling liquid, generating a stop instruction and sending the stop instruction to the VCU vehicle control unit, and sending the stop instruction to the vehicle-mounted BMS battery system after the VCU vehicle control unit receives the stop instruction;
and step S50, sending a water supply pump by the vehicle-mounted BMS battery system after receiving the stop command.
8. A power battery pack, comprising: a battery box and a fire suppression device of a power battery pack according to any one of claims 1 to 6.
9. The power battery pack as claimed in claim 8, wherein the battery box body comprises a lower battery box body (1) and an upper battery cover (7) which are buckled with each other, and the water cooling plate (4) is fixed at the bottom of the lower battery box body (1).
10. A vehicle characterized by comprising a vehicle body and the power battery pack according to claim 8 or 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110992196.7A CN113764772A (en) | 2021-08-27 | 2021-08-27 | Fire suppression device and method for power battery pack, power battery pack and vehicle |
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| CN202110992196.7A CN113764772A (en) | 2021-08-27 | 2021-08-27 | Fire suppression device and method for power battery pack, power battery pack and vehicle |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111725582A (en) * | 2020-05-29 | 2020-09-29 | 哲弗智能系统（上海）有限公司 | Vehicle-mounted battery fireproof heat source management synchronization device and use method |
| CN114597540A (en) * | 2022-03-11 | 2022-06-07 | 东风汽车集团股份有限公司 | Battery module and vehicle |
| CN115332656A (en) * | 2022-08-23 | 2022-11-11 | 华为数字能源技术有限公司 | Battery box, battery module, energy storage system and electric automobile |
| CN115364405A (en) * | 2022-08-24 | 2022-11-22 | 中国第一汽车股份有限公司 | Power battery system, power battery fire extinguishing system and method and vehicle |
| EP4276979A3 (en) * | 2022-05-11 | 2023-12-27 | Samsung SDI Co., Ltd. | Battery module and energy storage system including the same |
| WO2024065739A1 (en) * | 2022-09-30 | 2024-04-04 | 宁德时代新能源科技股份有限公司 | Battery and electric apparatus |
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Application publication date: 20211207 |