CN220367980U - Storage battery box body with composite alarm function and automatic fire extinguishing function - Google Patents
Storage battery box body with composite alarm function and automatic fire extinguishing function Download PDFInfo
- Publication number
- CN220367980U CN220367980U CN202321668001.4U CN202321668001U CN220367980U CN 220367980 U CN220367980 U CN 220367980U CN 202321668001 U CN202321668001 U CN 202321668001U CN 220367980 U CN220367980 U CN 220367980U
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- China
- Prior art keywords
- fire extinguishing
- battery
- box body
- detection
- automatic fire
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- 238000003860 storage Methods 0.000 title claims abstract description 40
- 239000002131 composite material Substances 0.000 title claims abstract description 24
- 238000001514 detection method Methods 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 31
- 238000012544 monitoring process Methods 0.000 claims abstract description 17
- 230000017525 heat dissipation Effects 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims description 18
- IYRWEQXVUNLMAY-UHFFFAOYSA-N carbonyl fluoride Chemical compound FC(F)=O IYRWEQXVUNLMAY-UHFFFAOYSA-N 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 9
- 238000005070 sampling Methods 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 238000000825 ultraviolet detection Methods 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 239000011229 interlayer Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims 2
- 150000002576 ketones Chemical class 0.000 claims 1
- 150000002500 ions Chemical class 0.000 description 13
- 239000000779 smoke Substances 0.000 description 7
- WVSNNWIIMPNRDB-UHFFFAOYSA-N 1,1,1,3,3,4,4,5,5,6,6,6-dodecafluorohexan-2-one Chemical compound FC(F)(F)C(=O)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F WVSNNWIIMPNRDB-UHFFFAOYSA-N 0.000 description 6
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 6
- 229910052744 lithium Inorganic materials 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- NNLOEQYKNGKQBN-UHFFFAOYSA-N FC(F)(F)C(=O)C(F)=C(F)C(F)(F)C(F)(F)F Chemical compound FC(F)(F)C(=O)C(F)=C(F)C(F)(F)C(F)(F)F NNLOEQYKNGKQBN-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000002211 ultraviolet spectrum Methods 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000004804 winding 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
- Fire-Detection Mechanisms (AREA)
Abstract
The utility model belongs to the technical field of battery box fire extinguishment, and particularly relates to a storage battery box body with a composite alarm function and an automatic fire extinguishment function. The intelligent fire extinguishing device comprises a box body and a box cover, wherein a composite detection alarm and automatic fire extinguishing assembly, a high-efficiency heat dissipation assembly and a liquid leakage monitoring assembly are arranged in the box body. The utility model improves the detection element, so that the whole device is more suitable for the use of the storage battery, the dimension for monitoring the storage battery is increased, and the monitoring effectiveness is greatly improved; the working relation among the internal elements is described, so that the practicability is better; and a certain amount of heat dissipation and heat insulation are added, so that the storage battery can be stabilized in a reasonable temperature range, and the safety performance is further improved.
Description
Technical Field
The utility model belongs to the technical field of battery box fire extinguishment, and particularly relates to a storage battery box body with a composite alarm function and an automatic fire extinguishment function.
Background
With the development of economy and social progress, new energy technologies have become necessarily common to society. The lithium battery technology is widely applied to electric automobiles, has high technical maturity, and has the advantages of simple equipment power-on operation, repeated charge and discharge use, no maintenance, good power supply stability, no exhaust emission, low noise, convenient vehicle grouping and selection and the like, and is suitable for subway inner milling operation. The lithium battery in the project design proposal is a lithium iron phosphate battery or a lithium titanate battery with higher safety performance, and has certain potential safety hazard.
The usual battery box adopts aluminium die casting, panel beating or combined material shaping, when fully taking into account battery capacity, only carries out electric core temperature monitoring, does not carry out battery box content fire detection and fire extinguishing technology and holds. In order to meet the fire safety requirements and reduce the risk of fire, some improvement boxes are designed on the market, and a temperature detector and a smoke detector are added by punching holes on the existing battery box.
As shown in CN202010002879.9, the present utility model relates to a fire prevention and control system and method for a battery box, comprising a fire detector for the battery box, a main controller, a smoke alarm controller, and a fire extinguishing system; the fire detector of the battery box detects the temperature and smoke concentration information in the battery box; the smoke and fire alarm controller sends the temperature and smoke concentration information in the battery box to the main controller; the main controller generates fire alarm information of the battery box according to the acquired temperature and smoke concentration information in the battery box so as to control the starting state of the fire extinguishing system; the fire extinguishing system feeds back the internal state information to the main controller in real time, and the main controller communicates with the train network through the smoke and fire alarm controller and uploads the alarm information and the state information of the fire extinguishing system. The system is provided with a two-stage alarm mode, different alarm grades can be started according to whether the first detector and the second detector alarm, the fault state is monitored in real time, and the fire extinguishing system is started, so that the effects of detecting initial fire, intelligently judging and inhibiting the development of fire conditions are realized.
Through analysis, the photoelectric smoke-sensing fire detector is adopted to work, and can be linked to extinguish fire when a large amount of gas and open fire are generated due to the fact that the photoelectric smoke-sensing fire detector needs to generate fire, the reaction is insensitive, in the case that the storage battery burns, the burning speed of the storage battery is found to be very fast, and the detector is not suitable for monitoring the storage battery; and the combination mode of all the electrical parts is not given in the patent; there is also a lack of a relatively conventional efficient heat dissipation mechanism that allows the battery pack to be maintained at a stable temperature, and improvements are needed to address the above-described problems.
Disclosure of Invention
In order to solve the problems in the background technology, the utility model provides the storage battery box body with the composite alarm function and the automatic fire extinguishing function, which has the functions of composite detection, high-efficiency cleaning and automatic fire extinguishing, can realize alarm accuracy and has a certain cooling effect.
The utility model provides a storage battery box body with a composite alarm function and an automatic fire extinguishing function, which comprises a box body and a box cover, wherein a composite detection alarm and automatic fire extinguishing assembly, a high-efficiency heat dissipation assembly and a liquid leakage monitoring assembly are arranged in the box body; the efficient heat dissipation assembly comprises a liquid cooling module and a heat conduction module, wherein the liquid cooling module and the heat conduction module are arranged around the battery placement bin.
Further, the liquid cooling module is including winding the liquid cooling transportation pipe that sets up in the storehouse lateral surface is placed to the battery, liquid cooling transportation pipe both ends are equipped with feed liquor pipe and drain pipe, box outside one side is equipped with the connecting pipe, box outside opposite side corresponds the connecting pipe and is equipped with recess two, be equipped with the spread groove in the recess two, the connecting pipe communicates each other with the feed liquor pipe, the spread groove communicates each other with the drain pipe.
Further, the heat conduction module comprises a plurality of metal heat conduction plates which are uniformly arranged outside the battery placing bin, and the metal heat conduction plates are in contact with the inner wall of the box body.
Further, the weeping monitoring component comprises a plurality of detection holes positioned on the inner bottom surface of the battery placing bin, a detection groove is arranged below the detection holes in the box body, a pressure sensor is arranged in the detection groove, a detection plate is arranged on the pressure sensor, and the pressure sensor is electrically connected with a non-pressure storage type perfluoro-ketone fire extinguishing device.
Further, the case cover is a copper plating material.
Further, a heat insulation interlayer is arranged in the middle of the box body.
Further, the gas sampling tube, the ultraviolet photosensitive detector and the fire extinguishing agent spraying tube are fixedly connected with the case cover.
The utility model has the beneficial effects that:
the utility model improves the detection element, so that the whole device is more suitable for the use of the storage battery, the dimension for monitoring the storage battery is increased, and the monitoring effectiveness is greatly improved; the working relation among the internal elements is described, so that the practicability is better; and a certain amount of heat dissipation and heat insulation are added, so that the storage battery can be stabilized in a reasonable temperature range, and the safety performance is further improved.
Drawings
Fig. 1 is a right front perspective view of a battery case with a composite alarm function and an automatic fire extinguishing function according to the present utility model.
Fig. 2 is a left front perspective view of a battery case with a composite alarm function and an automatic fire extinguishing function according to the present utility model.
Fig. 3 is a perspective view showing the opening of a cover of a battery case body with a composite alarm function and an automatic fire extinguishing function according to the present utility model.
Fig. 4 is a schematic diagram of an area a of a battery case with a composite alarm function and an automatic fire extinguishing function according to the present utility model.
Fig. 5 is a cross-sectional view of a leakage monitoring assembly of a battery case with a combined alarm function and an automatic fire extinguishing function according to the present utility model.
Fig. 6 is an internal perspective view of a battery case with a composite alarm function and an automatic fire extinguishing function according to the present utility model.
As shown in the figure:
1. the fire extinguishing device comprises a box body, 2, a box cover, 3, a first groove, 4, a pyroelectric ion detector, 5, a non-storage type perfluoro-hexenone fire extinguishing device, 6, a pyroelectric ion linkage communication line, 7, an ultraviolet detection linkage communication line, 8, a battery placement bin, 9, an ultraviolet photosensitive detector, 10, a gas sampling pipe, 11, a fire extinguishing agent injection pipe, 12, a liquid cooling transportation pipe, 13, a liquid inlet pipe, 14, a liquid outlet pipe, 15, a connecting pipe, 16, a second groove, 17, a connecting groove, 18, a metal heat conducting plate, 19, a detection hole, 20, a detection groove, 21, a pressure sensor, 22, a detection plate, 23 and a heat insulation interlayer.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
Please refer to the accompanying drawings:
the storage battery box body with the composite alarm function and the automatic fire extinguishing function comprises a box body 1 and a box cover 2, wherein antistatic copper powder is adopted for spraying in the box body 1, ultraviolet spectrum reflection is improved, diffuse reflection spectrum detection is realized, and the box cover 2 is made of a copper plating material; the box body 1 is internally provided with a composite detection alarm and automatic fire extinguishing assembly, a high-efficiency heat dissipation assembly and a liquid leakage monitoring assembly; the composite detection alarm and automatic fire extinguishing assembly comprises a groove I3 positioned at one side of a box body 1, wherein a thermal release ion detector 4 and a non-storage type perfluoro-ketone fire extinguishing device 5 are arranged in the groove I3, the two non-storage type perfluoro-ketone fire extinguishing devices 5 are designed, the thermal release ion detector 4 is positioned between the two non-storage type perfluoro-ketone fire extinguishing devices 5, in addition, the non-storage type perfluoro-ketone fire extinguishing devices 5 spray fire extinguishing agent into a fire extinguishing agent spray pipe 11 for fire extinguishing within 3 seconds through a self solid-gas state conversion device, meanwhile, the heat is absorbed and reduced, and the thermal release ion detector 4 has an audible and visual alarm function and can provide a dry point signal for other monitoring systems; a thermal release ion linkage communication line 6 is arranged between the thermal release ion detector 4 and the non-storage type perfluoro-hexanone fire extinguishing device 5, an ultraviolet detection linkage communication line 7 is arranged on the non-storage type perfluoro-hexanone fire extinguishing device 5, a battery placing bin 8 is arranged in the box body 1, an ultraviolet photosensitive detector 9 is arranged at one end of the ultraviolet detection linkage communication line 7 extending into the battery placing bin 8, the ultraviolet photosensitive detector 9 is electrically connected with the non-storage type perfluoro-hexanone fire extinguishing device 5, and the non-storage type perfluoro-hexanone fire extinguishing device 5 is linked in a thermal release ion or ultraviolet detection mode; a gas sampling tube 10 is symmetrically arranged above the battery placing bin 8, the gas sampling tube 10 is electrically connected with the pyroelectric ion detector 4, and an electric signal is sent to the pyroelectric ion detector 4 after the gas is detected; a plurality of fire extinguishing agent injection pipes 11 are uniformly arranged above the battery placing bin 8, and the fire extinguishing agent injection pipes 11 are communicated with the non-storage type perfluoro-hexanone fire extinguishing device 5; the high-efficiency heat dissipation assembly comprises a liquid cooling module and a heat conduction module which are arranged around the battery placement bin 8.
Further, the liquid cooling module comprises a liquid cooling conveying pipe 12 which is wound on the outer side surface of the battery placing bin 8, a liquid inlet pipe 13 and a liquid outlet pipe 14 are arranged at two ends of the liquid cooling conveying pipe 12, a connecting pipe 15 is arranged at one side outside the box body 1, a groove II 16 is arranged at the other side outside the box body 1 corresponding to the connecting pipe 15, a connecting groove 17 is arranged in the groove II 16, and the connecting pipe 15 is mutually matched with the connecting groove 17; the connecting pipe 15 is communicated with the liquid inlet pipe 13, the connecting groove 17 is communicated with the liquid outlet pipe 14, and the structure of the second groove 16 is utilized, so that the whole body is not protruded when being spliced and used, and the whole body is flatter.
Further, the heat conduction module comprises a plurality of metal heat conduction plates 18 which are uniformly arranged outside the battery placing bin 8, the metal heat conduction plates 18 are in contact with the inner wall of the box body 1, heat can be quickly taken away by utilizing the heat conductivity of metal, and the auxiliary liquid cooling module can effectively cool the storage battery.
Further, the leakage monitoring assembly comprises a plurality of detection holes 19 positioned on the inner bottom surface of the battery placing bin 8, a detection groove 20 is arranged below the detection holes 19 in the box body 1, and the detection groove 20 is funnel-shaped; a pressure sensor 21 is arranged in the detection groove 20, a detection plate 22 is arranged on the pressure sensor 21, and the detection plate 22 is in sliding connection with the inner wall of the detection groove 20; the pressure sensor 21 is electrically connected with the non-pressure-storage type perfluoroketone fire extinguishing device 5, when battery liquid leaks, the battery liquid can be collected, the change of stress is utilized for early warning and monitoring, and the storage battery pack is monitored through the other dimension, so that the storage battery pack can maintain the optimal performance state for a long time, and the life safety of users is protected.
Further, a heat insulation interlayer 23 is arranged in the middle of the box body 1, and the heat insulation interlayer 23 is made of a specific heat insulation material and prevents external heat from entering the box body.
Further, a gas sampling tube 10, an ultraviolet light-sensitive detector 9 and a fire extinguishing agent spraying tube 11 are fixedly connected with the case cover 2.
Working principle:
the non-pressure storage type perfluorohexenone extinguishing device 5 is fixed on the outer side of the box body 1, the pyroelectric ion detector 4 is arranged on the upper portion of the box body 1 through a gas sampling tube 10, and the ultraviolet photosensitive detector 9 is arranged on the top of the box body 1. The inside of the box body 1 is sprayed by adopting antistatic copper powder, ultraviolet spectrum reflection is improved, and diffuse reflection spectrum detection is realized. When the thermal ion detector 4 releases ions to the lithium battery, the linkage non-pressure storage type perfluoro-ketone fire extinguishing device 5 sprays, and the battery placing bin 8 in the first box body 1 is subjected to fire prevention and temperature reduction. If the lithium battery fault continues to occur and open fire is generated, the ultraviolet photosensitive detector 9 is linked with the non-pressure storage type perfluoro-hexanone fire extinguishing device 5 to perform secondary fire extinguishing and cooling. The lithium battery fire disaster in the battery placement bin 8 is effectively controlled or delayed by the two detection and fire extinguishing settings, sufficient time is provided for rescue and evacuation, and additionally, the leakage monitoring is designed, so that the battery pack can give an alarm and reduce the temperature in time under the condition of leakage, and can be protected more rapidly.
The utility model and its embodiments have been described above with no limitation, and the specific embodiments are shown as only one of the embodiments of the utility model, and the actual structure is not limited thereto. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.
Claims (7)
1. The utility model provides a compound alarming function and automatic fire extinguishing function's battery box, includes box and case lid, be equipped with compound detection warning and automatic fire extinguishing subassembly, high-efficient radiating component and weeping monitoring component in the box, its characterized in that: the composite detection alarm and automatic fire extinguishing assembly comprises a groove I positioned at one side of a box body, wherein a thermal release ion detector and a non-storage type perfluoroketone fire extinguishing device are arranged in the groove I, a thermal release ion linkage communication line is arranged between the thermal release ion detector and the non-storage type perfluoroketone fire extinguishing device, an ultraviolet detection linkage communication line is arranged on the non-storage type perfluoroketone fire extinguishing device, a battery placing bin is arranged in the box body, an ultraviolet light sensitive detector is arranged at one end of the ultraviolet detection linkage communication line extending into the battery placing bin, the ultraviolet light sensitive detector is electrically connected with the non-storage type perfluoroketone fire extinguishing device, gas sampling pipes are symmetrically arranged above the battery placing bin, the gas sampling pipes are electrically connected with the thermal release ion detector, a plurality of fire extinguishing agent injection pipes are uniformly arranged above the battery placing bin, and the fire extinguishing agent injection pipes are communicated with the non-storage type perfluoroketone fire extinguishing device; the efficient heat dissipation assembly comprises a liquid cooling module and a heat conduction module, wherein the liquid cooling module and the heat conduction module are arranged around the battery placement bin.
2. The battery box with composite alarm and automatic fire extinguishing functions according to claim 1, wherein: the liquid cooling module comprises a liquid cooling transportation pipe which is wound on the outer side face of the battery placement bin, liquid inlet pipes and liquid outlet pipes are arranged at two ends of the liquid cooling transportation pipe, a connecting pipe is arranged on one side outside the box body, a groove II is formed in the other side outside the box body, corresponding to the connecting pipe, a connecting groove is formed in the groove II, the connecting pipe is communicated with the liquid inlet pipes, and the connecting groove is communicated with the liquid outlet pipes.
3. The battery box with composite alarm and automatic fire extinguishing functions according to claim 1, wherein: the heat conduction module comprises a plurality of metal heat conduction plates which are uniformly arranged outside the battery placing bin, and the metal heat conduction plates are in contact with the inner wall of the box body.
4. The battery box with composite alarm and automatic fire extinguishing functions according to claim 1, wherein: the leakage monitoring assembly comprises a plurality of detection holes positioned on the inner bottom surface of the battery placement bin, a detection groove is formed in the box body and positioned below the detection holes, a pressure sensor is arranged in the detection groove, a detection plate is arranged on the pressure sensor, and the pressure sensor is electrically connected with a non-pressure storage type perfluorinated ketone fire extinguishing device.
5. The battery box with composite alarm and automatic fire extinguishing functions according to claim 1, wherein: the case cover is made of copper plating materials.
6. The battery box with composite alarm and automatic fire extinguishing functions according to claim 1, wherein: and a heat insulation interlayer is arranged in the middle of the box body.
7. The battery box with composite alarm and automatic fire extinguishing functions according to claim 1, wherein: the gas sampling tube, the ultraviolet photosensitive detector and the fire extinguishing agent injection tube are fixedly connected with the case cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321668001.4U CN220367980U (en) | 2023-06-28 | 2023-06-28 | Storage battery box body with composite alarm function and automatic fire extinguishing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321668001.4U CN220367980U (en) | 2023-06-28 | 2023-06-28 | Storage battery box body with composite alarm function and automatic fire extinguishing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220367980U true CN220367980U (en) | 2024-01-19 |
Family
ID=89514912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321668001.4U Active CN220367980U (en) | 2023-06-28 | 2023-06-28 | Storage battery box body with composite alarm function and automatic fire extinguishing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220367980U (en) |
-
2023
- 2023-06-28 CN CN202321668001.4U patent/CN220367980U/en active Active
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