CN111697178A - New energy automobile battery box fixing device - Google Patents
New energy automobile battery box fixing device Download PDFInfo
- Publication number
- CN111697178A CN111697178A CN202010511757.2A CN202010511757A CN111697178A CN 111697178 A CN111697178 A CN 111697178A CN 202010511757 A CN202010511757 A CN 202010511757A CN 111697178 A CN111697178 A CN 111697178A
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- battery box
- control
- new energy
- fixing device
- energy automobile
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- 238000007789 sealing Methods 0.000 claims abstract description 21
- 238000005192 partition Methods 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 239000000523 sample Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 239000003795 chemical substances by application Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 239000003350 kerosene Substances 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
-
- 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
- A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
-
- 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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
- A62C35/10—Containers destroyed or opened by flames or heat
-
- 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
- H01M10/63—Control systems
-
- 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
- H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
-
- 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)
- Automation & Control Theory (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a new energy automobile battery box fixing device which comprises a battery box body, wherein a containing cavity for placing a storage battery is formed in the battery box body, and the battery box body is connected with a sealing cover. Through being equipped with the passive control device that can open and close the passageway of putting out a fire in the closing cap, when opening, the fire extinguishing agent in the passageway of putting out a fire can directly spout into the battery box body inside, and this kind of starting mode of putting out a fire need not external intelligent device's control, also need not the support of external energy, and the function is timely, is difficult for becoming invalid, and low cost is showing the technique that is superior to current passing through temperature detect probe and detects the battery.
Description
Technical Field
The invention relates to the technical field of new energy automobile battery boxes, in particular to a new energy automobile battery box fixing device.
Background
The new energy automobile adopts unconventional automobile fuel as a power source (or adopts conventional automobile fuel and a novel vehicle-mounted power device), integrates advanced technologies in the aspects of power control and driving of the automobile, and forms an automobile with advanced technical principle, new technology and new structure. The new energy automobile comprises a pure electric automobile, an extended range electric automobile, a hybrid electric automobile, a fuel cell electric automobile, a hydrogen engine automobile and the like. At present, most new energy automobiles adopt lithium batteries as energy supply means of the new energy automobiles, and a large number of electric automobile charging devices are arranged in districts and working parks, so that the new energy automobiles can be further developed and become the mainstream of the automobile industry.
The battery management and control to new energy automobile, especially battery thermal runaway's management and control are very important, stretch into the battery box with infrared inductive probe at present, and the battery temperature is responded to, with information transfer to on-vehicle controller, however, because infrared inductive probe belongs to the components and parts that need the electric quantity just can operate, also has the risk of inefficacy in addition.
Disclosure of Invention
The invention aims to provide a new energy automobile battery box fixing device which does not need to be supported by external electric energy, has the functions of fixing a battery to avoid bumping damage, monitoring the temperature of the battery and automatically opening a fire extinguishing pipeline when the battery is out of control due to heat.
The technical purpose of the invention is realized by the following technical scheme:
the utility model provides a new energy automobile battery box fixing device, includes the battery box body, the inside appearance chamber that is used for placing the battery that has of battery box body, the battery box body is connected with a closing cap, its characterized in that, the passageway of putting out a fire has been seted up in the closing cap, passageway one end of putting out a fire with the inside appearance chamber of battery box body is linked together, and the other end extends to the battery box body is outside, be equipped with in the closing cap and be used for opening or close the passive control device of passageway of putting out a fire.
Preferably, the passive control device comprises a cylinder, a control member, a piston and a heat-conducting pressure plate, the cylinder body is used for packaging the heated expansion liquid, one end of the heat conduction pressure plate is fixedly arranged on the cylinder wall of the cylinder body, the other end of the heat conduction pressure plate is used for pressing the storage battery, the piston is in sliding seal with the inner wall of the cylinder body, a control groove is arranged in the sealing cover and transversely penetrates through the fire extinguishing channel, one end of the control component extends into the cylinder body and is fixedly connected with the piston, the other end extends out of the cylinder body and is connected with the control groove in a sliding way, the control component is provided with an aligning hole matched with the fire extinguishing channel, the control component is provided with an elastic bulge, and in an initial state, the elastic bulge is pressed and attached to the control component by the inner surface of the control groove, a clamping groove communicated with the control groove is further formed in the sealing cover, and the clamping groove is used for being clamped with the elastic bulge.
Preferably, the control component includes a traction rod and a control panel, one end of the traction rod extends into the cylinder body and is fixedly connected with the piston, the other end of the traction rod extends out of the cylinder body, the control panel is horizontally slidably arranged in the control groove, the alignment hole is formed in the control panel, the elastic bulge is arranged on the lower surface of the control panel, under an initial state, the elastic bulge is pressed and attached to the control panel by the inner surface of the control groove, one end of the clamping groove is communicated with the control groove, and the other end of the clamping groove is opened on the lower surface of the sealing cover.
Preferably, an elastic component for the horizontal sliding reset of the control plate is further arranged in the control groove.
Preferably, the elastic member is a return spring, one end of the return spring is connected with the side wall of the control plate, and the other end of the return spring is connected with the end part of the control groove.
Preferably, a limit ring for preventing the piston from extending excessively into the cylinder under the elastic action of the elastic member is arranged in the cylinder.
Preferably, a plurality of storage batteries connected in series end to end are placed in the cavity inside the battery box body, and each storage battery corresponds to one passive control device and one fire extinguishing channel.
Preferably, the cavity inside the battery box body is provided with a plurality of partitions, and a storage battery is arranged between every two adjacent partitions.
Preferably, the partition is a heat insulation partition and is made of a heat insulation rubber material.
Preferably, the cylinder is a stainless steel cylinder.
The invention has the following beneficial effects:
through being equipped with the passive control device that can open and close the passageway of putting out a fire in the closing cap, when opening, the fire extinguishing agent in the passageway of putting out a fire can directly spout into the battery box body inside, and this kind of starting mode of putting out a fire need not external intelligent device's control, also need not the support of external energy, and the function is timely, is difficult for becoming invalid, and low cost is showing the technique that is superior to current passing through temperature detect probe and detects the battery.
Drawings
Fig. 1 is an external structural schematic view of a new energy vehicle battery box fixing device in an embodiment of the invention;
FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is an enlarged partial schematic view at M of FIG. 3;
FIG. 5 is another state diagram of FIG. 4;
FIG. 6 is a schematic view of the inner structure of the closure cap of FIG. 1;
fig. 7 is a schematic view of the structure of the lower surface of the closure in fig. 1.
The meaning of the reference numerals: the fire extinguishing device comprises a battery box body 1, a partition 11, a storage battery 2, a sealing cover 3, a fire extinguishing channel 31, a control groove 32, a clamping groove 33, a passive control device 4, a cylinder body 41, a limiting ring 41a, a traction rod 42, a piston 42a, a control plate 43, an alignment hole 43a, an elastic bulge 43b, a return spring 44 and a heat conducting pressure plate 45.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and it is obvious that the described examples are only a part of the examples of the present invention, not all examples, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 to 7, the new energy automobile battery box fixing device of the present invention includes a battery box body 1, a storage battery 2 is placed in the battery box body 1, a sealing cover 3 is covered on the upper portion of the battery box body 1, wherein a fire extinguishing channel 31 is formed in the sealing cover 3, one end of the fire extinguishing channel 31 is opened on the side surface of the sealing cover 3 for connecting with a high-pressure fire extinguishing source, the other end of the fire extinguishing channel 31 is opened on the lower surface of the sealing cover 3 and faces the storage battery 2, a passive control device 4 is installed in the sealing cover 3, the passive control device 4 includes a cylinder 41, a pull rod 42, a control plate 43, a return spring 44 and a heat conducting pressure plate 45, the cylinder 41 is fixed in the sealing cover 3, the cylinder 41 is filled with a heated expanding liquid, the heat conducting pressure plate 45 is a metal elastic sheet, the upper end of the heat conducting pressure plate 45 is fixed on the cylinder wall of the cylinder 41, the, one end of a traction rod 42 is positioned in the cylinder body 41 and fixedly connected with a piston 42a, the other end extends out of the cylinder body 41, the piston 42a is in sealing fit with the inner wall of the cylinder body 41, a control groove 32 is formed in the sealing cover 3, the control groove 32 transversely penetrates through the fire extinguishing passage 31, one end of a clamping groove 33 is communicated with the control groove 32, the other end of the clamping groove 33 is opened on the lower surface of the sealing cover 3, a control plate 43 can be horizontally and slidably installed in the control groove 32, an alignment hole 43a matched with the diameter of the fire extinguishing passage 31 is formed in the control plate 43, an elastic bulge 43b is arranged on the lower surface of the control plate 43, the elastic bulge 43b is pressed by the lower surface of the control groove 32 and attached to the control plate 43, one end of the control plate 43 is fixedly connected with one end of the traction rod 42 extending out of the cylinder body 41, the other end is connected with one, the plate body of the control plate 43 blocks the fire extinguishing channel 31, so that the fire extinguishing agent in the fire extinguishing channel 31 cannot enter the battery box, when the heat conducting pressure plate 45 senses the temperature rise of the storage battery 2, the heat conducting pressure plate 45 can transmit the temperature to the surface of the cylinder 41, the cylinder 41 heats the heated expansion liquid, the heated expansion liquid expands to push the traction rod 42, so that the control plate 43 transversely moves, the return spring 44 is compressed, when the traction rod 42 extends to the end of the stroke of the traction rod, the alignment hole 43a in the control plate 43 is just aligned with the fire extinguishing channel 31, the fire extinguishing agent in the fire extinguishing channel can enter the battery box, meanwhile, the elastic protrusion 43b just moves to the upper end of the clamping groove 33, the elastic protrusion 43b loses the pressing of the lower surface of the control groove 32 and is bounced into the clamping.
By adding a passive control device 4 to the cover 3, the passive control device 4 presses the accumulator 2 through the heat conducting pressure plate 45, the battery 2 is fixed and at the same time, serves as a heat conduction device for transferring heat to the cylinder 41, the cylinder 41 is filled with liquid which is obviously expanded by heating, once the temperature of the storage battery is overhigh, the hydraulic pressure in the cylinder 41 is lifted along with the liquid, the control plate 43 is transversely pushed, the heat conduction pressure plate 45 reaches the preset temperature, i.e. the threshold value of the thermal runaway of the storage battery 2, the aligning hole 43a on the control plate 43 is just aligned with the fire extinguishing channel 31, the fire extinguishing agent in the fire extinguishing channel 31 can be directly sprayed into the battery box body 1, the fire extinguishing starting mode does not need the control of an external intelligent device or the support of external energy, operates in time, the battery pack is not easy to lose effectiveness, has low cost and is obviously superior to the prior technology for detecting the storage battery through the temperature detection probe.
In the fire extinguishing process, the temperature of the heat conducting pressure plate 45 is reduced along with the temperature reduction, and in order to prevent the control plate 43 from retracting to cause the disconnection of the fire extinguishing channel 31, the elastic bulge 43b is designed to be just moved to the upper end of the clamping groove 33 when the storage battery 2 is on fire, the elastic bulge 43b loses the pressing of the lower surface of the control groove 32 and is bounced into the clamping groove 33, so that the control plate 43 cannot move horizontally, the control plate 43 is locked to keep the smoothness of the fire extinguishing channel 31, after the fire is extinguished, a worker only needs to press the elastic bulge 43b into the control groove 32 from the clamping groove 33, and the reset spring 44 can drive the control plate 43 to return, so that the fire extinguishing control function of the sealing cover 3 is recovered, the aim of repeated use is.
In the embodiment, a plurality of storage batteries 2 are placed in a battery box body 1, the storage batteries 2 are connected end to end in series, each storage battery 2 corresponds to one passive control device 4 and one fire extinguishing channel 31, and one ends of the fire extinguishing channels 31, which are arranged on the side surfaces of a sealing cover 3, converge into a pipeline in the sealing cover 3 and then extend out from the side surfaces of the sealing cover 3.
In the embodiment, a plurality of partitions 11 are arranged in the battery box body 1, a storage battery 2 is arranged between every two adjacent partitions 11, wherein the partitions 11 are heat insulation partitions, and the materials are heat insulation rubber.
In the embodiment, the battery 2 is a lithium battery.
In an embodiment, a limiting ring 41a is disposed in the cylinder 41, the limiting ring 41a is fixed in the cylinder 41, and an inner diameter of the limiting ring 41a is smaller than a diameter of the piston 42a for preventing the piston 42a from excessively extending into the cylinder 41 under an elastic action of the return spring 44.
In the examples, the thermal expansion liquid was kerosene.
In the embodiment, the cylinder 41 is a stainless steel cylinder.
The specific control mode of the invention is as follows:
when the storage battery is not combusted to fire, the state of the passive control device 4 is as shown in fig. 4, as can be seen from the figure, the piston 42a does not reach the right end stroke end, the alignment hole 43a is not aligned with the fire extinguishing channel 31, so that the fire extinguishing channel 31 is cut off, the elastic protrusion 43b is also pressed by the groove bottom of the control groove 32 and cannot be ejected out, when the temperature of the storage battery abnormally rises to fire, the heat conducting pressure plate 45 can transfer heat to the cylinder 41, the cylinder 41 is made of heat conducting material, the heat enables the kerosene to be heated and expanded, the piston 42a is pushed to move to the state shown in fig. 5, the return spring 44 is compressed, the piston 42a reaches the right end stroke end, the alignment hole 43a is aligned with the fire extinguishing channel 31, the fire extinguishing channel 31 is unblocked, the elastic protrusion 43b is ejected into the clamping groove 33 to be fixed, the fire extinguishing channel 31, the storage battery 2 is put out fire, and the fire extinguishing agent in the high-pressure fire extinguishing agent source is emptied at one time. After the fire extinguishing is finished, the worker opens the sealing cover 3, pushes the elastic protrusion 43b out of the clamping groove 33, and the passive control device 4 returns to the state shown in fig. 4 under the action of the return spring 44.
While the preferred embodiments of the present invention have been illustrated and described, it will be appreciated that the invention may be embodied otherwise than as specifically described and that equivalent alterations and modifications, which may be effected thereto by those skilled in the art without departing from the spirit of the invention, are deemed to be within the scope and spirit of the invention.
Claims (10)
1. The utility model provides a new energy automobile battery box fixing device, includes the battery box body, the inside appearance chamber that is used for placing the battery that has of battery box body, the battery box body is connected with a closing cap, its characterized in that, the passageway of putting out a fire has been seted up in the closing cap, passageway one end of putting out a fire with the inside appearance chamber of battery box body is linked together, and the other end extends to the battery box body is outside, be equipped with in the closing cap and be used for opening and close the passive control device of passageway of putting out a fire.
2. The new energy automobile battery box fixing device according to claim 1, wherein the passive control device comprises a cylinder body, a control member, a piston and a heat conduction pressure plate, the cylinder body is used for packaging the heated expansion liquid, one end of the heat conduction pressure plate is fixedly arranged on the cylinder wall of the cylinder body, the other end of the heat conduction pressure plate is used for compressing the storage battery, the piston is in sliding seal with the inner wall of the cylinder body, a control groove is formed in the cover, the control groove transversely penetrates through the fire extinguishing channel, one end of the control member extends into the cylinder body and is fixedly connected with the piston, the other end of the control member extends out of the cylinder body and is in sliding connection with the control groove, an alignment hole matched with the fire extinguishing channel is formed in the control member, an elastic protrusion is formed in the control member, and in an initial state, the elastic protrusion is pressed by the inner surface of the control groove and, and a clamping groove communicated with the control groove is further formed in the sealing cover and is used for being clamped with the elastic bulge.
3. The new energy automobile battery box fixing device according to claim 2, wherein the control member comprises a traction rod and a control plate, one end of the traction rod extends into the cylinder body and is fixedly connected with the piston, the other end of the traction rod extends out of the cylinder body, the control plate is horizontally and slidably arranged in the control groove, the alignment hole is formed in the control plate, the elastic protrusion is arranged on the lower surface of the control plate, in an initial state, the elastic protrusion is pressed and attached to the control plate by the inner surface of the control groove, one end of the clamping groove is communicated with the control groove, and the other end of the clamping groove is opened on the lower surface of the sealing cover.
4. The new energy automobile battery box fixing device as claimed in claim 3, wherein an elastic member for horizontal sliding return of the control plate is further arranged in the control groove.
5. The new energy automobile battery box fixing device according to claim 4, wherein the elastic member is a return spring, one end of the return spring is connected with the side wall of the control plate, and the other end of the return spring is connected with the groove end of the control groove.
6. The new energy automobile battery box fixing device according to claim 4 or 5, wherein a limiting ring for preventing the piston from extending excessively into the cylinder under the elastic action of the elastic component is arranged in the cylinder.
7. The fixing device for the battery box of the new energy automobile as claimed in any one of claims 1 to 5, wherein a plurality of storage batteries connected in series end to end are placed in the cavity inside the battery box body, and each storage battery corresponds to one passive control device and one fire extinguishing channel.
8. The fixing device for the battery box of the new energy automobile as claimed in any one of claims 1 to 5, wherein the cavity inside the battery box body is provided with a plurality of partitions, and a storage battery is placed between two adjacent partitions.
9. The new energy automobile battery box fixing device of claim 7, wherein the partition is a heat insulation partition and is made of a heat insulation rubber material.
10. The new energy automobile battery box fixing device according to any one of claims 1 to 5, wherein the cylinder body is a stainless steel cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010511757.2A CN111697178B (en) | 2020-06-08 | 2020-06-08 | New energy automobile battery box fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010511757.2A CN111697178B (en) | 2020-06-08 | 2020-06-08 | New energy automobile battery box fixing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111697178A true CN111697178A (en) | 2020-09-22 |
| CN111697178B CN111697178B (en) | 2022-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010511757.2A Active CN111697178B (en) | 2020-06-08 | 2020-06-08 | New energy automobile battery box fixing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116154359A (en) * | 2023-04-21 | 2023-05-23 | 常州中兴华达科技股份有限公司 | Air-cooled safety energy storage cabinet |
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| CN210110902U (en) * | 2019-09-09 | 2020-02-21 | 天津利锋新能源科技有限公司 | Automatic fire extinguishing battery box |
| CN111244570A (en) * | 2020-01-16 | 2020-06-05 | 朱燚鹏 | Prevent new forms of energy battery protector of spontaneous combustion |
| CN111162348A (en) * | 2020-01-22 | 2020-05-15 | 上海蔚乐科技有限公司 | Electric automobile with emergent fire extinguishing systems |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116154359A (en) * | 2023-04-21 | 2023-05-23 | 常州中兴华达科技股份有限公司 | Air-cooled safety energy storage cabinet |
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