CN115317835A - Lithium ion battery energy storage system fire prevention and control device - Google Patents
Lithium ion battery energy storage system fire prevention and control device Download PDFInfo
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- CN115317835A CN115317835A CN202210842753.1A CN202210842753A CN115317835A CN 115317835 A CN115317835 A CN 115317835A CN 202210842753 A CN202210842753 A CN 202210842753A CN 115317835 A CN115317835 A CN 115317835A
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- detector body
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- 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
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
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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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4285—Testing apparatus
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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 invention provides a fire prevention and control device of a lithium ion battery energy storage system, which comprises a detection track, mounting base blocks, a fire detector body, a translation component, a protruding flat plate part, a protective cover plate and a transmission component, wherein the two mounting base blocks are symmetrically fixed on one side of the detection track; the fire detector body can move and detect the fire inside the energy storage power station, so that the fire detection work inside the energy storage power station can be finished through one fire detector body without installing one fire detector body on each battery rack, the fire detection cost is greatly saved, and the fire detector body moving to the flat plate part of the convex plate can be covered through the protective cover plate when a fire occurs, so that the influence on the detection performance of the fire detector body caused by the falling of particles and perfluorohexanone on the fire detector body is avoided.
Description
Technical Field
The invention relates to the technical field of fire prevention and control devices, in particular to a fire prevention and control device of a lithium ion battery energy storage system.
Background
In a lithium ion battery energy storage power station, a plurality of battery racks are usually arranged on the inner side of the power station, energy storage batteries are stacked on the battery racks, a fire detector is fixed on the battery racks, a fire inside the power station is detected by the fire detector, when a fire condition in a detection area of the fire detector is found, a signal is transmitted to a fire extinguishing device, and perfluorohexanone is sprayed out by the fire extinguishing device to extinguish the fire, so that the real-time fire detection and fire extinguishing work of the power station are realized; and the inside battery frame in every energy storage power station is usually put a plurality ofly side by side, and all need install a fire detector on every battery frame, and this kind of mode causes a power station inboard to need install a plurality of fire detector, the fire detection cost has been increased, and the installation that current fire detector exposes usually on the battery frame, can produce a large amount of smog when the battery takes place the conflagration on the battery frame, contain a large amount of particulate matters in the smog, these particulate matters wrap up and hold easily fall on fire detector at perfluor hexanone content, thereby cause the influence to fire detector's detection performance, make fire detector can not continue to carry out the fire detection work in later stage after the conflagration finishes.
Therefore, it is necessary to provide a new fire prevention and control device for an energy storage system of a lithium ion battery to solve the above technical problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides a fire prevention and control device for an energy storage system of a lithium ion battery.
The invention provides a fire prevention and control device of a lithium ion battery energy storage system, which comprises a detection track, two installation base blocks, a fire detector body, a translation component, a convex flat plate part, a protective cover plate and a transmission component, wherein the two installation base blocks are symmetrically fixed on one side of the detection track, the fire detector body is connected to one side, far away from the installation base blocks, of the detection track in a sliding manner, the translation component is fixed on one side, close to the fire detector body, of the outer wall of the detection track and used for driving the fire detector body to horizontally move on the outer side of the detection track, the convex flat plate is formed at one end of the detection track, the protective cover plate is rotatably installed on one side, close to the convex flat plate part, of the protective cover plate is in pressing contact with the surface of the convex flat plate part, and the transmission component is connected to one side, far away from the protective cover plate, of the surface of the convex flat plate part in a sliding manner and used for driving the protective cover plate to be closed when the fire detector moves to one side of the protective cover plate.
Preferably, one side that the detection track is close to the protective cover plate is fixed with the connecting strip near the one end symmetry of protective cover plate, rotates through the bearing between two connecting strips and is connected with the pivot, and the protective cover plate is fixed with the middle part of pivot, and the pot head in the pivot outside is equipped with torsion spring, and torsion spring's one end is fixed with the outer wall of connecting strip, and torsion spring's the other end is fixed with the outer wall of protective cover plate.
Preferably, one side that the detection track is close to the fire detector body is fixed with the slide rail, and one side that the fire detector body is close to the slide rail is fixed with the draw runner, the outer wall sliding connection of draw runner and slide rail.
Preferably, the translation subassembly includes the rack, the transfer line, the gear, the worm wheel, worm and motor, the rack is fixed in the one side that the track is close to the fire detector body that detects, the transfer line passes through the bearing and rotates the connection in the one side that the fire detector body is close to the rack, the gear is fixed in the upper end of transfer line, and the gear is connected with the meshing of rack, the worm wheel is fixed at the lower extreme of transfer line, the worm rotates the connection through the bearing and is close to one side of worm wheel in the bottom of fire detector body, and the worm is connected with the meshing of worm wheel, the motor is fixed in one side of the bottom of fire detector body, and the one end that the worm is close to the motor is fixed with the output of motor.
Preferably, one side of the outer wall of the fire detector body, which is close to the gear, is provided with an embedded groove, and one side of the gear is positioned on the inner side of the embedded groove.
Preferably, the transmission assembly includes the drive slide, the returning face plate, run through the groove, the drive post, dodge spout and promote the strip, drive slide sliding connection is in the one side that protection cover plate was kept away from to the protrusion flat plate portion, the one end that protection cover plate's outer wall is close to the pivot is fixed to two returning face plate symmetries, run through the groove and offer at the middle part that detection track is close to returning face plate one side, and the lower extreme of two returning face plates all runs through the groove and extends to the one side that detection track is close to the drive slide, the one end that protection cover plate was kept away from at the returning face plate is offered to the drive groove, two drive posts rotate the one end of connecting at the drive slide near the returning face plate through the bearing symmetry, and the inner wall roll connection of drive post and drive groove, two dodge spout symmetries are offered at the one side that protrusion flat plate portion is close to the drive slide, two promote the strip symmetry and fix the one side that the outer wall sliding connection that the drive slide is close to dodging the spout, the one end that the strip was kept away from the drive slide runs through and extends to the one side that detection track is close to the fire detector body, the outer wall extrusion contact of fire detector body and the outer wall that promotes the strip.
Preferably, the side groove has all been seted up to the position that one side of pivot was kept away from to the lateral wall of protection apron corresponds slide rail and rack, and rack and slide rail all are in the inboard in side groove.
Preferably, the protruding flat plate portion is symmetrically fixed with a limited clamping strip on one side close to the driving sliding plate, the sliding grooves are symmetrically formed in the surface of the driving sliding plate, and the driving sliding plate is connected with the outer wall of the limited clamping strip in a sliding mode through the sliding grooves.
Preferably, the two ends of the mounting base block are provided with mounting holes.
Preferably, the protruding flat plate portion is integrally provided with the detection rail.
Compared with the related art, the fire prevention and control device for the energy storage system of the lithium ion battery has the following beneficial effects:
1. according to the invention, the detection track, the fire detector body and the translation assembly are arranged, so that the fire detector body can perform movement detection work at the inner side of the energy storage power station, and therefore, a fire detector body does not need to be arranged on each battery rack, the fire detection work at the inner side of the energy storage power station can be completed through one fire detector body, and the fire detection cost is greatly saved;
2. according to the invention, the protection cover plate and the transmission assembly are arranged, so that the fire detector body moving to the flat plate part of the convex plate can be covered when a fire breaks out, the fire detector body can be protected when the fire extinguishment work is carried out, and the influence on the detection performance of the fire detector body caused by the falling of particles and perfluorohexanone on the fire detector body is avoided.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a fire detector body according to the present invention;
FIG. 3 is a schematic view of the position structure of the rotating shaft according to the present invention;
FIG. 4 is an enlarged view of the invention at A;
FIG. 5 is a schematic view of a translation assembly according to the present invention;
FIG. 6 is a second schematic view of the translation assembly of the present invention;
FIG. 7 is a schematic view of a transmission assembly according to the present invention;
FIG. 8 is a second schematic structural view of the transmission assembly of the present invention;
FIG. 9 is a third schematic view of the transmission assembly of the present invention
FIG. 10 is a schematic view of a lateral groove structure of the transmission assembly of the present invention.
Reference numbers in the figures: 1. detecting a track; 1a, a protruding flat plate part; 2. installing a base block; 3. a fire detector body; 4. a translation assembly; 41. a rack; 42. a transmission rod; 43. a gear; 44. a worm gear; 45. a worm; 46. a motor; 5. a protective cover plate; 6. a transmission assembly; 61. driving the slide plate; 62. a turnover plate; 63. a through slot; 64. a drive slot; 65. a drive column; 66. avoiding the chute; 67. a push bar; 7. a connecting strip; 8. a rotating shaft; 9. a torsion spring; 10. a slide rail; 11. a slide bar; 12. embedding the groove; 13. a side groove; 14. a limiting card strip; 15. a chute; 16. and (7) mounting holes.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
Specific implementations of the present invention are described in detail below with reference to specific embodiments.
Referring to fig. 1 and 2, a fire prevention and control device for a lithium ion battery energy storage system according to an embodiment of the present invention includes a detection track 1, installation base blocks 2, a fire detector body 3, a translation component 4, a protruding flat plate portion 1a, a protection cover plate 5, and a transmission component 6, where the two installation base blocks 2 are symmetrically fixed on one side of the detection track 1, the fire detector body 3 is slidably connected to one side of the detection track 1 away from the installation base blocks 2, the translation component 4 is fixed on one side of an outer wall of the detection track 1 close to the fire detector body 3, and is configured to drive the fire detector body 3 to horizontally move outside the detection track 1, the protruding flat plate is formed at one end of the detection track 1, the protection cover plate 5 is rotatably installed on one side of the detection track 1 close to the protruding flat plate portion 1a, and one side of the protection cover plate 5 is in pressing contact with a surface of the protruding flat plate portion 1a, and the transmission component 6 is slidably connected to one side of the protruding flat plate portion 1a far from the protection cover plate 5, and is configured to drive the protection cover plate 5 to close when the fire detector moves to one side of the protection cover plate 5.
It should explain, only need a fire detector body 3 can accomplish the fire detection work in the energy storage power station, when the installation, will detect track 1 and install on a plurality of battery racks that are placed in a row, and through translation subassembly 4 drive fire detector body 3 along detecting track 1 reciprocating motion when detecting, thereby carry out fire detection work to a plurality of battery racks, thereby do not need all to install a fire detector on every battery rack, very big reduction fire detection's cost, and can be when putting out a fire the work, cover fire detector body 3 through protective cover plate 5, thereby can avoid particulate matter and perfluor hexanone to cover the detection performance to fire detector body 3 on fire detector body 3 and cause the influence.
Referring to fig. 3 and 4, connecting strips 7 are symmetrically fixed at one end of one side of the detection track 1 close to the protective cover plate 5, a rotating shaft 8 is rotatably connected between the two connecting strips 7 through a bearing, the protective cover plate 5 is fixed to the middle of the rotating shaft 8, one end of the outer side of the rotating shaft 8 is sleeved with a torsion spring 9, one end of the torsion spring 9 is fixed to the outer wall of the connecting strip 7, the other end of the torsion spring 9 is fixed to the outer wall of the protective cover plate 5, and the torsion spring 9 enables the protective cover plate 5 to have an opening tendency.
Referring to fig. 2, a slide rail 10 is fixed on one side of the detection track 1 close to the fire detector body 3, a slide bar 11 is fixed on one side of the fire detector body 3 close to the slide rail 10, and the slide bar 11 is slidably connected with an outer wall of the slide rail 10, so that the fire detector body 3 can stably and smoothly slide.
Referring to fig. 5 and 6, the translation assembly 4 includes a rack 41, a transmission rod 42, a gear 43, a worm wheel 44, a worm 45 and a motor 46, the rack 41 is fixed on one side of the detection track 1 close to the fire detector body 3, the transmission rod 42 is rotatably connected to one side of the fire detector body 3 close to the rack 41 through a bearing, the gear 43 is fixed on the upper end of the transmission rod 42, the gear 43 is engaged with the rack 41, the worm wheel 44 is fixed on the lower end of the transmission rod 42, the worm 45 is rotatably connected to one side of the bottom of the fire detector body 3 close to the worm wheel 44 through a bearing, the worm 45 is engaged with the worm wheel 44, the motor 46 is fixed on one side of the bottom of the fire detector body 3, and one end of the worm 45 close to the motor 46 is fixed to an output end of the motor 46.
When detecting, rotate through driving motor 46 to drive worm 45 and rotate, thereby drive worm wheel 44 and rotate, and then drive transfer line 42 and rotate, and then drive gear 43 and rotate, can take the fire detector body 3 to slide along slide rail 10 through the cooperation of gear 43 and rack 41, thereby make fire detector body 3 carry out the removal detection work.
Referring to fig. 5, an insertion groove 12 is formed in a side of the outer wall of the fire detector body 3 close to the gear 43, and one side of the gear 43 is located inside the insertion groove 12, so that the gear 43 can be avoided, and the gear 43 can rotate smoothly.
Referring to fig. 3, 4, 7, 8 and 9, the transmission assembly 6 includes a driving sliding plate 61, a turning plate 62, a through groove 63, a driving groove 64, a driving column 65, an avoiding sliding groove 66 and a pushing strip 67, the driving sliding plate 61 is slidably connected to one side of the protruding flat plate portion 1a away from the protective cover plate 5, the two turning plates 62 are symmetrically fixed to one end of the outer wall of the protective cover plate 5 close to the rotating shaft 8, the through groove 63 is opened in the middle of one side of the detection track 1 close to the turning plate 62, the lower ends of the two turning plates 62 extend to one side of the detection track 1 close to the driving sliding plate 61 through the through groove 63, the driving groove 64 is opened at one end of the turning plate 62 away from the protective cover plate 5, the two driving columns 65 are symmetrically and rotatably connected to one end of the driving sliding plate 61 close to the turning plate 62 through a bearing, the driving columns 65 are in rolling connection with the inner wall of the driving groove 64, the two avoiding sliding grooves 66 are symmetrically opened at one side of the protruding flat plate portion 1a close to the driving sliding plate portion 61 close to one side of the driving sliding groove 66, the pushing strip 67 contacts with one side of the fire detector 3, and pushes the fire hazard detector 3.
When fire detector body 3 detects the conflagration and takes place, translation subassembly 4 drives fire detector body 3 fast and removes to one side that is close to protrusion flat plate portion 1a, and can promote to promote strip 67 behind one side of protrusion flat plate portion 1a that fire detector body 3 removed, thereby promote drive slide 61 and slide, thereby promote drive post 65, cooperation through drive post 65 and driving groove 64, make the returning face plate 62 upset, and the returning face plate 62 upset can drive the upset of protective cover board 5, thereby make protective cover board 5 overcome the elasticity of torsion spring 9 and slide to one side that is close to protrusion flat plate portion 1a, finally make one side of protective cover board 5 and the surface contact of protrusion flat plate portion 1a, cover fire detector body 3 through protective cover board 5, thereby perfluorohexanone and particulate matter when avoiding putting out a fire drop on the surface of fire detector body 3, from the detection performance who avoids causing the influence to fire detector body 3.
Referring to fig. 10, side grooves 13 are formed in the side wall of the protective cover plate 5 away from the rotating shaft 8 at positions corresponding to the slide rail 10 and the rack 41, and the rack 41 and the slide rail 10 are located inside the side grooves 13, so that the protective cover plate 5 can be smoothly covered and closed with the protruding flat plate portion 1 a.
Referring to fig. 7, limiting clamping strips 14 are symmetrically fixed on one side of the protruding flat plate portion 1a close to the driving sliding plate 61, sliding grooves 15 are symmetrically formed in the surface of the driving sliding plate 61, and the driving sliding plate 61 is slidably connected with the outer walls of the limiting clamping strips 14 through the sliding grooves 15, so that the driving sliding plate 61 can smoothly slide.
Referring to fig. 1, mounting holes 16 are formed at both ends of the mounting base block 2, so that the detection rail 1 can be conveniently mounted.
The circuits and controls involved in the present invention are all the prior art, and are not described herein in detail.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a lithium ion battery energy storage system conflagration prevention and control device which characterized in that includes:
detecting a track (1);
the two installation base blocks (2) are symmetrically fixed on one side of the detection track (1);
the fire detector body (3), the fire detector body (3) is connected to one side, far away from the installation base block (2), of the detection track (1) in a sliding mode;
the translation assembly (4) is fixed on one side, close to the fire detector body (3), of the outer wall of the detection track (1) and used for driving the fire detector body (3) to horizontally move on the outer side of the detection track (1);
a projecting flat plate portion (1 a) formed at one end of the detection rail (1);
the protective cover plate (5) is rotatably arranged on one side, close to the protruding flat plate part (1 a), of the detection track (1), and one side of the protective cover plate (5) is in pressing contact with the surface of the protruding flat plate part (1 a);
the transmission assembly (6) is connected to one side, away from the protective cover plate (5), of the surface of the protruding flat plate part (1 a) in a sliding mode, and is used for driving the protective cover plate (5) to be closed when the fire detector moves to one side of the protective cover plate (5).
2. The fire prevention and control device for the lithium ion battery energy storage system according to claim 1, wherein connecting strips (7) are symmetrically fixed to one end, close to the protective cover plate (5), of one side, close to the protective cover plate (5), of the detection track (1), two rotating shafts (8) are rotatably connected between the two connecting strips (7) through bearings, the protective cover plate (5) is fixed to the middle of the rotating shafts (8), one end, outside the rotating shafts (8), of the rotating shafts is sleeved with a torsion spring (9), one end of the torsion spring (9) is fixed to the outer wall of the connecting strip (7), and the other end of the torsion spring (9) is fixed to the outer wall of the protective cover plate (5).
3. The lithium ion battery energy storage system fire prevention and control device according to claim 1, wherein a slide rail (10) is fixed on one side of the detection track (1) close to the fire detector body (3), a slide bar (11) is fixed on one side of the fire detector body (3) close to the slide rail (10), and the slide bar (11) is connected with the outer wall of the slide rail (10) in a sliding manner.
4. The lithium ion battery energy storage system fire prevention and control device of claim 1, wherein the translation assembly (4) comprises:
the rack (41), the said rack (41) is fixed on one side close to body (3) of the fire detector of the detection orbit (1);
the transmission rod (42) is rotatably connected to one side, close to the rack (41), of the fire detector body (3) through a bearing;
the gear (43), the gear (43) is fixed on the upper end of the transmission rod (42), and the gear (43) is meshed with the rack (41);
the worm wheel (44), the said worm wheel (44) is fixed on the lower end of the drive rod (42);
the worm (45) is rotatably connected to one side, close to the worm wheel (44), of the bottom of the fire detector body (3) through a bearing, and the worm (45) is meshed with the worm wheel (44);
the motor (46), the motor (46) is fixed in one side of the bottom of the fire detector body (3), and one end, close to the motor (46), of the worm (45) is fixed with the output end of the motor (46).
5. The lithium ion battery energy storage system fire prevention and control device according to claim 4, characterized in that one side of the outer wall of the fire detector body (3) close to the gear (43) is provided with an embedded groove (12), and one side of the gear (43) is positioned at the inner side of the embedded groove (12).
6. The lithium ion battery energy storage system fire prevention and control device of claim 1, wherein the transmission assembly (6) comprises:
a driving sliding plate (61), wherein the driving sliding plate (61) is connected to one side of the convex flat plate part (1 a) far away from the protective cover plate (5) in a sliding way;
the two turnover plates (62) are symmetrically fixed at one end, close to the rotating shaft (8), of the outer wall of the protective cover plate (5);
the through grooves (63) are formed in the middle of one side, close to the turnover plates (62), of the detection track (1), and the lower ends of the two turnover plates (62) extend to one side, close to the driving sliding plate (61), of the detection track (1) through the through grooves (63);
the driving groove (64) is formed in one end, far away from the protective cover plate (5), of the turnover plate (62);
the two driving columns (65) are symmetrically and rotatably connected to one end, close to the turnover plate (62), of the driving sliding plate (61) through bearings, and the driving columns (65) are in rolling connection with the inner wall of the driving groove (64);
the two avoidance sliding grooves (66) are symmetrically arranged on one side, close to the driving sliding plate (61), of the protruding flat plate part (1 a);
promote strip (67), two promote strip (67) symmetry and fix the outer wall that is close to the one side of dodging spout (66) at drive slide (61), and promote strip (67) and the inner wall sliding connection who dodges spout (66), promote strip (67) and keep away from the one end of drive slide (61) and run through dodge spout (66) and extend to one side that detection track (1) is close to fire detector body (3), the outer wall of fire detector body (3) and the outer wall extrusion contact who promotes strip (67).
7. The lithium ion battery energy storage system fire prevention and control device according to claim 4, wherein side grooves (13) are formed in positions, corresponding to the slide rail (10) and the rack (41), of one side of the side wall of the protective cover plate (5) far away from the rotating shaft (8), and the rack (41) and the slide rail (10) are located on the inner side of the side grooves (13).
8. The lithium ion battery energy storage system fire prevention and control device according to claim 6, wherein limiting clamping strips (14) are symmetrically fixed on one side of the protruding flat plate portion (1 a) close to the driving sliding plate (61), sliding grooves (15) are symmetrically formed in the surface of the driving sliding plate (61), and the driving sliding plate (61) is in sliding connection with the outer walls of the limiting clamping strips (14) through the sliding grooves (15).
9. The fire prevention and control device for the lithium ion battery energy storage system according to claim 1, wherein mounting holes (16) are formed in both ends of the mounting base block (2).
10. The lithium ion battery energy storage system fire prevention and control device according to claim 1, wherein the protruding flat plate portion (1 a) is integrally arranged with the detection track (1).
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| CN202210842753.1A CN115317835B (en) | 2022-07-18 | 2022-07-18 | Fire prevention and control device of lithium ion battery energy storage system |
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| CN202210842753.1A CN115317835B (en) | 2022-07-18 | 2022-07-18 | Fire prevention and control device of lithium ion battery energy storage system |
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| CN115317835B CN115317835B (en) | 2023-05-23 |
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| CN111508183A (en) * | 2020-05-07 | 2020-08-07 | 青田昙正测量仪器有限公司 | Fire detector detects protection device |
| CN213342916U (en) * | 2020-09-23 | 2021-06-01 | 玉环市环宇光学仪器股份有限公司 | High definition image type fire detector shell subassembly |
| CN216596476U (en) * | 2021-10-25 | 2022-05-24 | 刻锐智能科技(河源)有限公司 | Locking fire hazard prevention smoke detector that moves |
| CN114511983A (en) * | 2022-02-22 | 2022-05-17 | 九江职业技术学院 | Fire prevention detection device |
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| CN115317835B (en) | 2023-05-23 |
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