CN110448826B - Automatic fire extinguishing system for server - Google Patents
Automatic fire extinguishing system for server Download PDFInfo
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- CN110448826B CN110448826B CN201910680146.8A CN201910680146A CN110448826B CN 110448826 B CN110448826 B CN 110448826B CN 201910680146 A CN201910680146 A CN 201910680146A CN 110448826 B CN110448826 B CN 110448826B
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- automatic fire
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- extinguishing system
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- 239000000463 material Substances 0.000 claims abstract description 33
- 239000000779 smoke Substances 0.000 claims abstract description 33
- 238000007664 blowing Methods 0.000 claims abstract description 24
- 238000002347 injection Methods 0.000 claims abstract description 18
- 239000007924 injection Substances 0.000 claims abstract description 18
- 238000007789 sealing Methods 0.000 claims description 20
- 238000004891 communication Methods 0.000 claims description 16
- 238000009434 installation Methods 0.000 claims description 9
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000000843 powder Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 4
- NMWSKOLWZZWHPL-UHFFFAOYSA-N 3-chlorobiphenyl Chemical compound ClC1=CC=CC(C=2C=CC=CC=2)=C1 NMWSKOLWZZWHPL-UHFFFAOYSA-N 0.000 description 5
- 101001082832 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) Pyruvate carboxylase 2 Proteins 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000032683 aging Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 210000000056 organ Anatomy 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000006353 environmental stress Effects 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 238000006467 substitution reaction Methods 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
- A62C3/16—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
- A62C37/00—Control of fire-fighting equipment
- A62C37/04—Control of fire-fighting equipment with electrically-controlled release
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Fire Alarms (AREA)
Abstract
The invention discloses an automatic fire extinguishing system for a server, wherein a smoke sensor is arranged on a PCB (printed circuit board); the fan module comprises a plurality of groups of fans, a plurality of storage tanks are formed in a closed space surrounded by the shell, the enclosure and the inner ring, and fire extinguishing materials are arranged in the storage tanks; and one side of the turntable is provided with an injection port, an injection pipe is sleeved outside the rotating shaft in a clearance manner, the injection pipe is connected with a plurality of communicating pipes in a run-through manner, and the other end of each communicating pipe is communicated with the storage tank. According to the invention, the smoke sensor is arranged at the air outlet of the case, the storage tank is arranged in the fan of the fan module, the fire extinguishing material is filled in the storage tank, when the smoke sensor detects that smoke is generated in the system, a signal is transmitted to the BMC, after the BMC receives the signal of the smoke sensor, the electromagnetic valve on the communicating pipe is controlled to be opened, and the fire extinguishing material is dispersed in the system through the blowing port under the action of wind flow, so that the fire extinguishing requirement is realized, the further spread of fire is avoided, and the further loss of personnel and property is avoided.
Description
Technical Field
The invention belongs to the technical field of servers, and particularly relates to an automatic fire extinguishing system for a server.
Background
The server is under various environmental stresses in the life cycle of the product, wherein the environmental stresses include changes of temperature, humidity, voltage, current and the like, and when the design material selection is not appropriate, the body of the part has defects or the terminal use environment changes, the system is likely to generate high temperature to cause fire because the stress accumulation exceeds the rated range which can be borne by the part and the board card; the existing early warning mechanism is mostly monitored by using a temperature sensor, a temperature sensing circuit on a PCB (printed circuit board) and a temperature value built in an IC (integrated circuit) chip are read by a BMC (Baseboard Management Controller) for operation, when the temperature exceeds a set threshold, an alarm is generated to inform an IT (information technology) worker, the IT worker gets the alarm and gets rid of the alarm on site, the mode is suitable for being used in a healthy and complete operation and maintenance environment, but the time difference exists between the time when the IT worker finds the alarm and the time when the IT worker arrives at the site, so that the passive Management has the problem of low operation and maintenance efficiency; in addition, the existing large-scale server data center generally adopts an unattended mode, and when a system is on fire due to the fact that a server breaks down, great loss of personnel and property can be caused if maintenance personnel cannot reach the site in time.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides an automatic fire extinguishing system of a server, wherein a smoke sensor is arranged at an air outlet of a case, a storage tank is arranged in a fan of a fan module, fire extinguishing materials are filled in the storage tank, when the smoke sensor detects that smoke is generated in the system, signals are transmitted to a BMC (baseboard management controller), the BMC controls an electromagnetic valve on a communicating pipe to be opened after receiving the signals of the smoke sensor, and the fire extinguishing materials are dispersed in the system under the action of wind flow through a blowing port, so that the fire extinguishing requirement is realized, the further spread of fire is avoided, and the further loss of personnel and property is avoided.
In order to achieve the purpose, the invention adopts the technical scheme that:
an automatic fire extinguishing system for a server comprises a case, a PCB (printed circuit board), a fan module and a BMC (baseboard management controller), wherein the PCB is arranged inside the case, the fan module and the BMC are both arranged on the PCB, a smoke sensor is also arranged on the PCB, and the smoke sensor is close to an air outlet of the case; the fan module comprises a plurality of groups of fans, the fans are electrically connected with the PCB, and the fan module dissipates heat for the server system when in normal use; the fan comprises a shell, a motor, a rotary table and fan blades, wherein the fan blades are fixedly arranged on the rotary table, a mesh enclosure is arranged on one side of the shell, an enclosure is arranged on the periphery of the shell, an inner ring is arranged in the shell, a plurality of storage grooves are formed in a closed space enclosed by the shell, the enclosure and the inner ring, and fire extinguishing materials are arranged in the storage grooves; the motor is fixedly connected with the inner ring through a connecting rod, a rotating shaft is arranged on one side of the motor, a rotating disc is arranged at one end of the rotating shaft, a bearing installation groove is formed in one side of the rotating disc, a blowing opening is formed in the other side of the rotating disc, a connector is arranged in the bearing installation groove, and the connector is fixedly connected with the inner wall of the blowing opening through a fixing plate; an injection pipe is sleeved outside the rotating shaft in a clearance mode, one end of the injection pipe is fixedly installed on the motor, a plurality of communicating pipes are connected to the injection pipe in a penetrating mode, the other end of each communicating pipe is communicated with the storage tank, an electromagnetic valve is arranged on each communicating pipe, a bearing is arranged at one end of the injection pipe, and a bearing outer ring is fixedly installed inside a bearing installation groove; the fan module, the smoke sensor and the electromagnetic valve are electrically connected with the BMC in a manner known by persons skilled in the art; when the smoke sensor detects that smoke is generated in the system, the smoke sensor transmits a signal to the BMC, the BMC controls the electromagnetic valve on the communicating pipe to be opened after receiving the signal of the smoke sensor, and the fire extinguishing material is dispersed in the system under the action of wind flow through the blowing opening, so that the requirement of fire extinguishing is met, further spreading of fire is avoided, and further loss of personnel and property is avoided.
As a further optimization of the technical scheme, a temperature sensor is arranged on one side of the smoke sensor and is electrically connected with the BMC, and the temperature sensor senses the temperature of the system, so that the accuracy of the server fire alarm is improved.
As further optimization of the technical scheme, the fire extinguishing material adopts a dry powder fire extinguishing agent, so that the phenomenon that the short circuit in the system aggravates fire is avoided.
As a further preferred option of this technical scheme, be equipped with communication module on the PCB board, communication module and BMC electric connection, communication module one end is connected with warning light and bee calling organ (not shown in the figure), and communication module is used for reporting to the police to fortune dimension personnel rapidly when taking place the condition of a fire, has improved fortune dimension personnel and has handled the ageing of the condition of a fire.
As this technical scheme's further preferred, fan module one side is equipped with stand-by power supply, stand-by power supply and fan module electric connection, stand-by power supply provide the power for fan module when server system condition of a fire is great causes the power outage, have guaranteed the normal clear of putting out a fire.
As a further preferred of this technical scheme, hold up tank one side is equipped with the filling mouth, be equipped with the sealing cap on the filling mouth, the sealing cap is connected with filling mouth detachable, uses up or consumes the back when the inside fire extinguishing material of hold up tank, and through filling mouth again with the dress of fire extinguishing material inside the hold up tank, improved the utilization ratio of fan module, reduced server fire extinguishing systems's use cost.
As a further preferred option of the technical scheme, a sealing gasket is arranged between the filling opening and the sealing cap, and the sealing gasket avoids the leakage of the fire extinguishing material in the storage tank.
As a further preferred aspect of the present technical solution, a plurality of the storage tanks are not connected to each other, that is, each storage tank is connected in parallel to the blowing pipe through the communicating pipe, thereby avoiding system failure due to a failure of one or more storage tanks or the communicating pipe or the solenoid valve.
As a further preferred aspect of the present technical solution, the pipe diameter of the blowing pipe is gradually reduced from the motor to one side of the turntable, so that the air pressure when the fire extinguishing material inside the blowing pipe circulates to the blowing opening is gradually increased, the spraying range of the fire extinguishing material is expanded, and the fire extinguishing effect inside the chassis is ensured.
The invention has the beneficial effects that:
1) set up smoke transducer on quick-witted case air outlet department, the hold up tank has been set up in the fan of fan module, with the fire extinguishing material filling inside the hold up tank, when smoke transducer detects the system in there is smog to produce, signal transmission gives BMC, BMC receives behind the smoke transducer signal, the solenoid valve on the control communicating pipe is opened, the fire extinguishing material distributes inside the system through the spout under the effect of distinguished and admirable, the demand of putting out a fire is realized, the further stretching of the intensity of a fire has been avoided, personnel have been avoided, the further loss of property.
2) A temperature sensor is arranged on one side of the smoke sensor and electrically connected with the BMC, and the temperature sensor senses the temperature of the system, so that the accuracy of server fire alarm is improved.
3) The fire extinguishing material adopts dry powder fire extinguishing agent, which avoids the short circuit in the system to intensify the fire.
4) Be equipped with communication module on the PCB board, communication module and BMC electric connection, communication module one end is connected with warning light and bee calling organ, and communication module is used for reporting to the fortune dimension personnel rapidly when taking place the condition of a fire, has improved the ageing of fortune dimension personnel's processing condition of a fire.
5) Fan module one side is equipped with stand-by power supply, stand-by power supply and fan module electric connection, stand-by power supply provides the power for fan module when the great power outage that causes of server system condition of a fire, has guaranteed the normal clear of putting out a fire.
6) Storage tank one side is equipped with the filling mouth, is equipped with the sealing cap on the filling mouth, and the sealing cap is connected with filling mouth detachable, and after the inside fire extinguishing material of storage tank used up or consumed, through the filling mouth again with the filling of fire extinguishing material inside the storage tank, improved the utilization ratio of fan module, reduced server fire extinguishing systems's use cost.
7) A sealing gasket is arranged between the filling opening and the sealing cap, and the sealing gasket prevents the fire extinguishing material inside the storage tank from leaking.
8) A plurality of storage tanks are not communicated with each other, namely, each storage tank is connected with the injection pipe in parallel through the communicating pipe, so that the system failure caused by the fault of one or more storage tanks or the communicating pipe or the electromagnetic valve is avoided.
9) The pipe diameter of the blowing pipe is gradually reduced from the motor to one side of the rotary table, so that the air pressure of the fire extinguishing materials inside the blowing pipe when the fire extinguishing materials circulate to the blowing opening is gradually increased, the spraying range of the fire extinguishing materials is expanded, and the fire extinguishing effect inside the case is guaranteed.
Drawings
FIG. 1 is a schematic structural diagram of an automatic fire extinguishing system of a server according to the invention.
Fig. 2 is a schematic diagram of a fan structure in the server automatic fire extinguishing system according to the invention.
Fig. 3 is a schematic diagram of the structure of the other side of a fan in the automatic fire extinguishing system of the server.
FIG. 4 is a schematic view of a fan blade structure in the server automatic fire extinguishing system according to the present invention.
FIG. 5 is a schematic view showing the connection of communication pipes in the automatic fire extinguishing system of the server according to the present invention.
FIG. 6 is a schematic diagram of the internal structure of an enclosure in the automatic fire extinguishing system of the server.
Fig. 7 is a schematic structural diagram of an internal blowing pipe in the automatic fire extinguishing system of the server.
Fig. 8 is a partially enlarged schematic view of a server automatic fire extinguishing system according to the present invention.
In the figure: 1. a chassis; 2. a PCB board; 3. a fan module; 4. BMC; 5. a smoke sensor; 6. a temperature sensor; 7. a communication module; 8. a standby power supply; 301. a fan; 302. a motor; 303. a housing; 304. fencing; 305. an inner ring; 306. a connecting rod; 307. a communicating pipe; 308. an electromagnetic valve; 309. a storage tank; 310. filling the opening; 311. sealing the cap; 312. a gasket; 313. a blowing pipe; 314. a rotating shaft; 315. a bearing; 316. a turntable; 317. a fan blade; 318. a joint; 319. a bearing mounting groove; 320. a fixing plate; 321. a blowing port; 322. a mesh enclosure;
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to fig. 1 to 8, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. 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 is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
An automatic fire extinguishing system for a server comprises a case 1, a PCB 2, a fan module 3 and a BMC4, wherein the PCB 2 is arranged inside the case 1, the fan module 3 and the BMC4 are both arranged on the PCB 2, a smoke sensor 5 is further arranged on the PCB 2, and the smoke sensor 5 is close to an air outlet of the case 1; the fan module 3 comprises a plurality of groups of fans 301, the fans 301 are electrically connected with the PCB 2, and the fan module 3 dissipates heat for the server system when in normal use; the fan 301 comprises a shell 303, a motor 302, a rotating disc 316 and fan blades 317, wherein the fan blades 317 are fixedly arranged on the rotating disc 316, a mesh enclosure 322 is arranged on one side of the shell 303, a surrounding barrier 304 is arranged on the periphery of the shell 303, an inner ring 305 is arranged in the shell 303, a plurality of storage grooves 309 are formed in a closed space surrounded by the shell 303, the surrounding barrier 304 and the inner ring 305, and fire extinguishing materials are arranged in the storage grooves 309; the motor 302 is fixedly connected with the inner ring 305 through a connecting rod 306, a rotating shaft 314 is arranged on one side of the motor 302, a rotating disc 316 is arranged at one end of the rotating shaft 314, a bearing installation groove 319 is arranged on one side of the rotating disc 316, a blowing opening 321 is arranged on the other side of the rotating disc 316, a connector 318 is arranged in the bearing installation groove 319, and the connector 318 is connected with the inner wall of the blowing opening 321 through a plurality of fixing plates 320; an injection pipe 313 is sleeved outside the rotating shaft 314 with a gap, one end of the injection pipe 313 is fixedly installed on the motor 302, a plurality of communicating pipes 307 are connected to the injection pipe 313 in a penetrating manner, the other end of the communicating pipe 307 is communicated with the storage tank 309, an electromagnetic valve 308 is arranged on the communicating pipe 307, one end of the injection pipe 313 is provided with a bearing 315, and the outer ring of the bearing 315 is fixedly installed inside the bearing installation groove 319; the fan module 3, the smoke sensor 5 and the electromagnetic valve 308 are all electrically connected with the BMC4, and the connection mode is a mode known by those skilled in the art; the BMC4, the smoke sensor 5 and the electromagnetic valve 308 are all commercially available mature products, and the structural principle is not detailed; when the smoke sensor 5 detects that smoke is generated in the system, the smoke sensor transmits a signal to the BMC4, after the BMC4 receives the signal of the smoke sensor 5, the electromagnetic valve 308 on the communicating pipe 307 is controlled to be opened, and the fire extinguishing material is dispersed in the system through the blowing port 321 under the action of wind flow, so that the requirement of fire extinguishing is met, further spread of fire is avoided, and further loss of personnel and property is avoided.
In this embodiment, smoke sensor 5 one side is equipped with temperature sensor 6, temperature sensor 6 and BMC4 electric connection, and the accuracy of server fire alarm has been improved to the temperature of temperature sensor 6 sensing system.
In the embodiment, the fire extinguishing material adopts a dry powder fire extinguishing agent, so that the phenomenon that the short circuit in the system aggravates fire is avoided.
In this embodiment, be equipped with communication module 7 on the PCB board 2, communication module 7 and BMC4 electric connection, communication module 7 one end is connected with warning light and bee calling organ (not shown in the figure), and communication module 7 is used for reporting to the police to fortune dimension personnel when taking place the condition of a fire rapidly, has improved the ageing of fortune dimension personnel's processing condition of a fire.
In this embodiment, 3 one sides of fan module are equipped with stand-by power supply 8, stand-by power supply 8 and 3 electric connection of fan module, stand-by power supply 8 provides the power for fan module 3 when the great power outage that causes of server system condition of a fire, has guaranteed the normal clear of putting out a fire.
In this embodiment, hold up tank 309 one side is equipped with filling opening 310, be equipped with sealing cap 311 on the filling opening 310, sealing cap 311 is connected with filling opening 310 detachable, uses up or consumes the back when the inside fire extinguishing materials of hold up tank 309, through filling opening 310 with the fire extinguishing materials filling inside hold up tank 309 again, has improved fan module 3's utilization ratio, has reduced server fire extinguishing systems's use cost.
In this embodiment, a sealing gasket 312 is disposed between the filling opening 310 and the sealing cap 311, and the sealing gasket 312 prevents the fire extinguishing material inside the storage tank 309 from leaking.
In this embodiment, a plurality of storage tanks 309 are not connected to each other, that is, each storage tank 309 is connected in parallel to injection pipe 313 through connection pipe 307, thereby avoiding system failure due to failure of one or more storage tanks 309 or connection pipe 307 or solenoid valve 308.
In this embodiment, the diameter of the blowing pipe 313 is gradually reduced from the motor 302 to the side of the turntable 316, so that the air pressure when the fire extinguishing material in the blowing pipe 313 flows to the blowing opening 321 is gradually increased, the spraying range of the fire extinguishing material is expanded, and the fire extinguishing effect in the cabinet 1 is ensured.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the present invention as defined in the accompanying claims.
Claims (8)
1. An automatic fire extinguishing system for a server comprises a case, a PCB, a fan module and a BMC, wherein the PCB is arranged in the case, and the fan module and the BMC are both arranged on the PCB; the fan module comprises a plurality of groups of fans, and the fans are electrically connected with the PCB; the fan comprises a shell, a motor, a rotary table and fan blades, wherein the fan blades are fixedly arranged on the rotary table, a mesh enclosure is arranged on one side of the shell, an enclosure is arranged on the periphery of the shell, an inner ring is arranged in the shell, a plurality of storage grooves are formed in a closed space enclosed by the shell, the enclosure and the inner ring, and fire extinguishing materials are arranged in the storage grooves; the motor is connected with the inner ring through a connecting rod, a rotating shaft is arranged on one side of the motor, a rotating disc is arranged at one end of the rotating shaft, a bearing installation groove is formed in one side of the rotating disc, a blowing opening is formed in the other side of the rotating disc, a connector is arranged in the bearing installation groove, and the connector is connected with the inner wall of the blowing opening through a plurality of fixing plates; an injection pipe is sleeved outside the rotating shaft in a clearance mode, one end of the injection pipe is fixedly installed on the motor, a plurality of communicating pipes are connected to the injection pipe in a penetrating mode, the other end of each communicating pipe is communicated with the storage tank, an electromagnetic valve is arranged on each communicating pipe, a bearing is arranged at one end of the injection pipe, and a bearing outer ring is fixedly installed inside a bearing installation groove; the fan module, the smoke sensor and the electromagnetic valve are electrically connected with the BMC; the storage tanks are not communicated with each other, namely, each storage tank is connected with the injection pipe in parallel through a communicating pipe.
2. The server automatic fire extinguishing system according to claim 1, wherein a temperature sensor is arranged on one side of the smoke sensor, and the temperature sensor is electrically connected with the BMC.
3. The server automatic fire extinguishing system according to claim 1, wherein the fire extinguishing material is a dry powder fire extinguishing agent.
4. The server automatic fire extinguishing system according to claim 1, wherein a communication module is arranged on the PCB and electrically connected with the BMC, and an alarm lamp and a buzzer are connected to one end of the communication module.
5. The server automatic fire extinguishing system according to claim 1, wherein a backup power supply is provided at one side of the fan module, and the backup power supply is electrically connected with the fan module.
6. The automatic fire extinguishing system for the server according to claim 1, wherein a filling opening is formed in one side of the storage tank, a sealing cap is arranged on the filling opening, and the sealing cap is detachably connected with the filling opening.
7. The server automatic fire extinguishing system according to claim 6, wherein a sealing gasket is arranged between the filling opening and the sealing cap.
8. The server automatic fire extinguishing system according to claim 1, wherein the pipe diameter of the blowing pipe is gradually reduced from the motor to the side of the turntable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910680146.8A CN110448826B (en) | 2019-07-26 | 2019-07-26 | Automatic fire extinguishing system for server |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910680146.8A CN110448826B (en) | 2019-07-26 | 2019-07-26 | Automatic fire extinguishing system for server |
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| CN110448826A CN110448826A (en) | 2019-11-15 |
| CN110448826B true CN110448826B (en) | 2021-04-27 |
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| CN201910680146.8A Active CN110448826B (en) | 2019-07-26 | 2019-07-26 | Automatic fire extinguishing system for server |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112860038B (en) * | 2021-01-13 | 2022-03-18 | 深圳市利合信诺科技有限公司 | Safety system based on cloud computing processor |
| CN115887986B (en) * | 2022-11-29 | 2024-05-28 | 苏州金马达电机有限公司 | Fireproof heat radiation fan |
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| CN205539094U (en) * | 2016-01-28 | 2016-08-31 | 三明亿力森达电气设备有限公司 | But automatic fire extinguishing's ammeter case |
| CN106298169A (en) * | 2016-08-09 | 2017-01-04 | 胡启元 | A kind of transformer case of band firebreak device |
| CN108074708A (en) * | 2017-12-04 | 2018-05-25 | 四川力智久创知识产权运营有限公司 | Transformer with high-effect fire-extinguishing shell |
| CN208782262U (en) * | 2018-08-13 | 2019-04-23 | 天津凯景康科技有限公司 | A kind of intellectual remote controlling switchgear |
| KR101962184B1 (en) * | 2018-11-12 | 2019-05-07 | 주식회사 동산전력 | Distribution box having cooling function |
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2019
- 2019-07-26 CN CN201910680146.8A patent/CN110448826B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205539094U (en) * | 2016-01-28 | 2016-08-31 | 三明亿力森达电气设备有限公司 | But automatic fire extinguishing's ammeter case |
| CN106298169A (en) * | 2016-08-09 | 2017-01-04 | 胡启元 | A kind of transformer case of band firebreak device |
| CN108074708A (en) * | 2017-12-04 | 2018-05-25 | 四川力智久创知识产权运营有限公司 | Transformer with high-effect fire-extinguishing shell |
| CN208782262U (en) * | 2018-08-13 | 2019-04-23 | 天津凯景康科技有限公司 | A kind of intellectual remote controlling switchgear |
| KR101962184B1 (en) * | 2018-11-12 | 2019-05-07 | 주식회사 동산전력 | Distribution box having cooling function |
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| Publication number | Publication date |
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| CN110448826A (en) | 2019-11-15 |
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