CN2308179Y - Fire-protection A. C. low-voltage distribution cabinet - Google Patents
Fire-protection A. C. low-voltage distribution cabinet Download PDFInfo
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- CN2308179Y CN2308179Y CN 97227882 CN97227882U CN2308179Y CN 2308179 Y CN2308179 Y CN 2308179Y CN 97227882 CN97227882 CN 97227882 CN 97227882 U CN97227882 U CN 97227882U CN 2308179 Y CN2308179 Y CN 2308179Y
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Abstract
The utility model relates to a fire-protection A. C. low-voltage power distribution cabinet, which comprises a cabinet body, and a standard low-voltage power distribution cabinet which is composed of an electric energy converting mechanism, a distribution mechanism and a control mechanism. The inner of the cabinet body is provided with a fire detector, a fire integrated controller, a sound-light alarm, a fire timer, a fire extinguisher controlled by an electromagnetic valve, and a cabinet body ventilation baffle. The output end of the fire detector is connected with the input end of the fire integrated controller, and the output end of the fire integrated controller is respectively connected with the sound-light alarm, the fire timer, the coils of an under-voltage release, the electromagnetic valve of the fire extinguisher and the electromagnetic valve of the cabinet body ventilation baffle. The power distribution cabinet has the functions of fire detection and fire alarm, and can cut off the main circuit of the power distribution cabinet, extinguish the fire and record the fire occurrence time automatically when the fire happens.
Description
The utility model relates to a kind of low-voltage distribution cabinet, especially can prevent the AC low voltage power switch box of fire.
AC low voltage power switch box has electric energy conversion, distribution and the controlled function of power and lighting and controller switching equipment, is widely used in power consumers such as power plant, transformer station, enterprise.The standard low pressure power distribution cabinet that present AC low voltage power switch box all is made up of cabinet and electric energy conversion, distribution and controlling organization comprises overcurrent and device for under-voltage releasing equipment in its controlling organization.Owing to do not equip the facility of fire alarm, self-extinguishing in the cabinet, thereby the fire that takes place in the power distribution cabinet all is to rely on hand inspection to find, yet when treating manually to find in the cabinet breaking out of fire, often day after the fair and can't save, so the loss that the electrical fire in the power distribution cabinet causes to industrial production is very huge.
In view of above-mentioned, the purpose of this utility model provides a kind of fire control type AC low voltage power switch box, this power distribution cabinet has the function of fire detection, fire alarm, can cut off power distribution cabinet main circuit, self-extinguishing automatically during breaking out of fire, and can write down the moment that fire takes place.
For reaching above-mentioned purpose, the utility model adopts following technical scheme:
A kind of fire control type AC low voltage power switch box, comprise the standard low pressure power distribution cabinet of forming by cabinet and electric energy conversion, distribution and controlling organization, comprise overcurrent and device for under-voltage releasing equipment in its controlling organization, it is characterized in that: fire detector, fire integrated controller, acoustic-optic alarm, fire timer also are housed, in the described cabinet: the start to exchange fire input of calamity general controller of the output of described fire detector by the fire extinguisher and the cabinet air deflector of solenoid control, wherein; The output of described fire integrated controller connects coil, fire extinguisher electromagnetically operated valve, the cabinet air deflector electromagnetically operated valve of acoustic-optic alarm, fire timer, device for under-voltage releasing equipment respectively.
In the implementing measure of technique scheme:
Described fire integrated controller is made of comparator circuit, logical circuit, timing trigger, the second and the 3rd relay, and wherein: the output of described fire detector connects the input of comparator circuit; The output of comparator circuit connects the input of logical circuit; The output of logical circuit connects the coil of described acoustic-optic alarm, timing trigger and second relay respectively; The start to exchange fire control end of calamity timer of the output of timing trigger; Two normal opened contacts of second relay are controlled fire extinguisher electromagnetically operated valve and the 3rd relay respectively; A normally closed contact control device for under-voltage releasing equipment coil of the 3rd relay, a normal opened contact control cabinet air deflector electromagnetically operated valve.
Described fire integrated controller also can be made of comparator circuit and microprocessor, this comparator circuit is made of four resistance series connection dividing potential drop branch road and three comparators, described acoustic-optic alarm comprises alarm lamp, trouble light and buzzer, wherein: the output of described fire detector is added to the in-phase input end of first, second comparator and the inverting input of the 3rd comparator respectively after the current-voltage conversion, three dividing points of dividing potential drop branch road are connected with another input of three comparators respectively, and the output of three comparators is added to each input of microprocessor respectively; The delivery outlet of microprocessor is respectively through driver be informed of a case warning lamp, trouble light, buzzer, fire timer, device for under-voltage releasing equipment coil, cabinet air deflector electromagnetically operated valve, fire extinguisher electromagnetically operated valve.
Described fire extinguisher comprises main fire extinguisher, standby fire extinguisher and the control circuit that is made of the time relay, main fire extinguisher electromagnetically operated valve, standby fire extinguisher electromagnetically operated valve, pressure switch, wherein: the normal opened contact string of the normal opened contact of the time relay and pressure switch is in the current supply circuit of the time relay and standby fire extinguisher electromagnetically operated valve, and the pressure switch of pressure switch is in parallel with its normal opened contact.
In when, in the power distribution cabinet electrical fire taking place when, fire detector just has signal to output to fire integrated controller, under the control action of fire integrated controller, the coil cut-out power distribution cabinet main switch of acoustic-optic alarm action, the fire timer record fire moment, device for under-voltage releasing equipment, cabinet air deflector are closed shutter, fire extinguisher is opened.
From the above, because the utility model is provided with fire detector, fire integrated controller, acoustic-optic alarm, fire timer and fire extinguisher in the standard distributed cabinet,, power distribution cabinet when breaking out of fire, can cut off main circuit, self-extinguishing, record fire generation fire-fighting function constantly automatically thereby being had.
Below in conjunction with drawings and Examples the utility model is elaborated.
Fig. 1 is a formation sketch of the present utility model;
Fig. 2 is the block diagram of fire general controller in the utility model;
Fig. 3 is the circuit diagram of fire integrated controller.
See also Fig. 1.The utility model comprises the standard low pressure power distribution cabinet of being made up of cabinet and electric energy conversion, distribution and controlling organization, comprise overcurrent release 7 and device for under-voltage releasing equipment 9 in its controlling organization, fire detector, fire integrated controller 14, acoustic-optic alarm, fire timer 18 also are housed, in the cabinet by the fire extinguisher and the cabinet air deflector (not shown) of solenoid control.Fire detector comprises smoke detector 12 and heat detector 13, two detector parallel connections, and acoustic-optic alarm comprises buzzer 17, alarm lamp and trouble light 16, and fire extinguisher comprises main fire extinguisher 22 and standby fire extinguisher 23.Wherein: the start to exchange fire input of calamity general controller 14 of fire detector 12 and 13 output; The output of fire integrated controller 14 connects the coil, fire extinguisher 22 of acoustic- optic alarm 16 and 17, fire timer 18, device for under-voltage releasing equipment 9 and 23 electromagnetically operated valve, cabinet air deflector electromagnetically operated valve respectively.
Among the figure: 45 lever 6 springs 8 armature 10 armature 11 springs 15 DC power supply 19 manual control mechanisms 20 fire extinguisher nozzles, 21 pressure switches are had contact with in 2 locking keys 3 of 1 contact.
See also Fig. 2.Fire integrated controller is made of comparator circuit 31, logical circuit 32, timing trigger 33, second relay 34 and the 3rd relay 36, and wherein: fire detector 12 and 13 output connect the input of comparator circuit 31; The output of comparator circuit 31 connects the input of logical circuit 32; The output of logical circuit 32 connects the coil of acoustic- optic alarm 16 and 17, timing trigger 33 and second relay 34 respectively; The start to exchange fire control end of calamity timer 18 of the output of timing trigger 33; Two normal opened contacts of second relay 34 are controlled fire extinguisher electromagnetically operated valve 35 and the 3rd relay 36 respectively; 37, one normal opened contact control of the normally closed contact control device for under-voltage releasing equipment coil cabinet air deflector electromagnetically operated valve 38 of the 3rd relay 36.
See also Fig. 3.Comparator circuit is made of three rest-set flip-flops among R3, R5～R7 four resistance series connection dividing potential drop branch road, three LM339 comparator D1:A～C, the 4043 trigger D2, logical circuit by two with a door D4:A (first with door) and D4:B (second with door), two or a D5:A (first or door) and D5:B (second or), five not gate D3:A～C (first to the 3rd not gate) and D6:A (the 4th not gate) and D6:C (the 5th not gate) formation, the fire timer is made of transistor V1 and the timing circuit P1 that is connected in this transistor output loop.
The output of fire detector B1 is added to the in-phase input end of first, second comparator and the inverting input of the 3rd comparator respectively after the current-voltage conversion, three dividing points of dividing potential drop branch road are connected with another input of three comparators respectively, and the S set end of three rest-set flip-flops is sent in the output of three comparators respectively.
The output Q1 of second rest-set flip-flop connect the first not gate D3:A and and the output Q3 of the 3rd rest-set flip-flop send into the or door D5:A together, the output Q0 of first rest-set flip-flop and the output of first not gate connect first with the door D4:A, first with the door D4:A output connect second respectively, four, five not gates and second or the door input, first or the output of door D5:A and the second not gate D3:B connect the input of the 3rd not gate D3:C through second with door D4:B, the output of the second not gate D3:B warning lamp H1 that is informed of a case, the output of the 3rd not gate D3:C meets trouble light H2, the output of the 4th not gate D6:C meets buzzer B2, the output of the 5th not gate D6:A connects the coil of second relay K 2, second or the output of door D5:B connect the input end of clock of timing trigger D8 b, the start to exchange fire base stage of transistor V1 in the calamity timer of the Q output of timing trigger.
Two normal opened contacts of the second relay k2 are controlled fire extinguisher electromagnetically operated valve and the 3rd relay K 3 respectively, a normally closed contact of the 3rd relay K 3 is by solid-state relay K6 control device for under-voltage releasing equipment coil Y1, and a normal opened contact is controlled cabinet air deflector electromagnetically operated valve Y2.
Fire extinguisher comprise main fire extinguisher, standby fire extinguisher and the control circuit that constitutes by very first time relay K 7, second time relay K8 master fire extinguisher electromagnetically operated valve K9, standby fire extinguisher electromagnetically operated valve K10, pressure switch K11 wherein: the normally closed contact of time relay K7 is connected with the normal opened contact of the second relay k2, the normal opened contact string of the normal opened contact of second time relay K8 and pressure switch K11 is in the current supply circuit of standby fire extinguisher electromagnetically operated valve K10 and pressure switch K11, and the pressure switch K0 of pressure switch is in parallel with its normal opened contact.
In when, in the power distribution cabinet electrical fire taking place when, can produce cigarette and these two kinds of Main physical amount signals of heat, they receive and convert to current signal output by smoke detector among the fire detector B1 12 and heat detector 13 respectively, this current signal is added to the input of three comparator D1:A～C after R1, R2 are transformed into voltage signal, comparator compares the current potential of each dividing point on its dividing potential drop branch road of connecting with four resistance, result relatively is that D1:A and D1:C output low level, D1:B are high level, after rest-set flip-flop latched, Q1 and Q3 were low and Q0 is height.After this result sends into logical circuit: first with the high level of door D4:A output through second or door D5:B output rising pulse, D8:b puts 1 with the timing trigger, and transistor V1 is ended, and therefore timing circuit P1 cuts off the power supply, its timer stops timing, and clocking value has shown the moment that fire takes place; The second not gate D3:B output low level is connected the warning light fixture, and the 4th not gate D6:C output low level is connected buzzer B2; The 5th not gate D6:A output low level is connected the coil of second relay K 2.And the second relay k2 get electric after, cause following sequence of operations again: 1. the second relay k2 normal opened contact is connected the coil of the 3rd relay K 3, the 3rd relay K 3 electric after, an one normally closed contact disconnection makes solid-state relay K6 dead electricity, so device for under-voltage releasing equipment coil Y1 dead electricity, referring to Fig. 1, the armature 10 of device for under-voltage releasing equipment 9 in the stroke that resets with lever 5 jack-up, locking key 2 with have contact with 3 and break away from, main switch disconnects under the effect of spring 6, promptly cuts off the power distribution cabinet main switch automatically; 2. the ventilation shutter of cabinet will guarantee good ventilation when normally moving, but be to reach the effect of feeling quite pleased of under level pressure, putting out a fire when fire, need shutter be sealed with baffle plate, the 3rd relay K 3 electric after, an one normal opened contact is connected cabinet air deflector electromagnetically operated valve Y2, baffle plate electromagnetically operated valve drive baffle plate moves and closes shutter, promptly seals cabinet; 3. another normal opened contact of the second relay k2 is connected main fire extinguisher electromagnetically operated valve K9, and the extinguishing chemical in the main fire extinguisher 22 is through nozzle 20 ejections, i.e. self-extinguishing.4. when fire extinguisher is not worked, because of there not being pressure in the cabinet, so the pressure switch K0 of pressure switch K11 is closed, during main fire extinguisher 22 operate as normal, the extinguishing chemical of its ejection produces certain pressure in the cabinet of sealing, this pressure can make the pressure switch K0 of pressure switch K11 open.When not spraying extinguishing chemical if the main fire extinguisher 22 of chance breaks down, the just timing closing of normal opened contact of second time relay K8 after about 5 seconds so pressure switch K11 gets electric and self-insurance, thereby is connected standby fire extinguisher electromagnetically operated valve K10, makes its spray fire extinguishing agent.After one bottle of extinguishing chemical has sprayed, the normally closed contact Time Delay Opening of very first time relay K 7, cut off the current supply circuit of main fire extinguisher electromagnetically operated valve K9 and standby fire extinguisher electromagnetically operated valve K10, cause standby fire extinguisher 23 actions to prevent that pressure switch K0 because of main fire extinguisher 22 sprays empty back pressure switch K11 is closed again.
Certainly, the utility model also can only be equipped a fire extinguisher, but reliability is less better.
Adopted four resistance series connection dividing potential drop branch road, three comparators and three rest-set flip-flops in the above-mentioned comparator circuit, its purpose one is for fire signal being converted to the required input signal of logical circuit, but whether two detection of fires detector B1 break down.When fire detector B1 short circuit, 24 volts of power supplys are added to comparator after R1 and R2 dividing potential drop, thereafter the state of three triggers is that Q0 and Q1 are that height and Q3 are low, after this result sent into logical circuit: first can not cause alarm lamp, buzzer, fire timer, second actuating of relay with the low level of door D4:A output, first or door D5:A and the second not gate D3:B all export high level, both through second with the door D4:B after, from the 3rd not gate D3:C output low level, trouble light H2 is connected.If fire detector B1 open circuit, then the state of three triggers is that Q0 and Q1 are low and Q3 is height, and this result also can not report to the police behind logical circuit and trouble light H2 is lighted.
DC power supply circuit among Fig. 3 shown in the lower-left is made of pressurizer D11, four comparator D10:A～D, transistor V4, buzzer B3, it can too high or too low phenomenon occur to input voltage and report to the police according to the comparable situation of the voltage stabilizing value of input voltage and pressurizer D11.When input voltage is too high, comparator D10:A output low level, it lights overvoltage indicator light H7 on the one hand, makes comparator D10:C output low level on the other hand and drives buzzer B3.Input voltage is crossed when low, and comparator D10:B is output low level then, and it lights under-voltage indicator light H6 on the one hand, makes comparator D10:D output low level on the other hand and drives buzzer B3.
Also available comparator circuit of above-mentioned fire integrated controller and microprocessor constitute, this comparator circuit constitutes with the same dividing potential drop branch road and three comparators, the output of three comparators is added to the delivery outlet of each input, microprocessor of microprocessor respectively respectively through driver be informed of a case warning lamp, trouble light, buzzer, fire timer, device for under-voltage releasing equipment coil, cabinet air deflector electromagnetically operated valve, fire extinguisher electromagnetically operated valve.In view of present microprocessor applications technology comparative maturity, so locate to repeat no more, its circuit also needn't be attached again.
In addition, the utility model has also designed following auxiliary functional circuit:
1. the self-checking circuit that constitutes by the self check button S1 and first relay K 1, the termination power of push-button switch S1, the input of another termination first relay K 1 and comparator circuit, the normally closed contact string of first relay K 1 is in the electric power loop of second relay K 2.After pressing self check button S1,12 volts of power supplys are given comparator input signal (signal that replaces fire detector) through R4 and V13, make acoustic-optic alarm and fire timer make actuation of an alarm, and first relay K 1 gets simultaneously, its normally closed contact has cut off the electric power loop of second relay K 2 again, so just can prevent fire extinguisher, device for under-voltage releasing equipment, the action of cabinet air deflector.
By start button S2, start the emergency start circuit that trigger D7:A constitutes, start button S2 is serially connected in power supply and starts between the control end of trigger, the output that starts trigger through and door D4:C and not gate D6:B connect the second relay k2 coil and through second or a door D5:B send timing trigger D8:B.Can press start button S2 in case of necessity, start trigger D7:A and be set to high level this moment, thereby start the second relay k2 and fire timer, lights emergency start indicator light H4 through D6:F simultaneously.
3. by by button S3, by the urgency stop circuit that trigger D7:B constitutes, be serially connected in power supply and, connect the coil of second relay by the output of trigger by between the control end of trigger by button S3.Press behind button S3, be set to high level by trigger D7:B, the low level of its Q end is cut off the power supply the second relay k2, and the high level of its Q end is lighted urgency stop indicator light H5 through D3:D simultaneously.
4. the reset circuit that constitutes by reset button S4, two monostable trigger D9:A and D9:B, two power supply relay K4 and K5, reset button S4 be serially connected in and the input of monostable trigger between, the output of two monostable triggers drives two power supply relays, the output of one of them monostable trigger D9:B also connects the reset terminal of each trigger respectively, and the normally closed contact of two power supply relays is serially connected in 12 volts of electric power loops of electromagnetically operated valve respectively and in 24 volts of electric power loops of relay.After pressing reset button S4, the state turnover of two monostable trigger D9:A and D9:B becomes high level, so two power supply relay K4 and K5 get, excise the power supply of relay and electromagnetically operated valve respectively, the high level of monostable trigger D9:B output simultaneously also as reset level be added to rest-set flip-flop D2, start trigger D7:A, by the R reset terminal of trigger D7:B and timing trigger D8:b.
Claims (10)
1. a fire control type AC low voltage power switch box comprises the standard low pressure power distribution cabinet of being made up of cabinet and electric energy conversion, distribution and controlling organization, comprises overcurrent and device for under-voltage releasing equipment in its controlling organization, it is characterized in that:
Fire detector, fire integrated controller, acoustic-optic alarm, fire timer also are housed in the described cabinet, by the fire extinguisher and the cabinet air deflector of solenoid control, wherein:
The start to exchange fire input of calamity general controller of the output of described fire detector;
The output of described fire integrated controller connects coil, fire extinguisher electromagnetically operated valve, the cabinet air deflector electromagnetically operated valve of acoustic-optic alarm, fire timer, device for under-voltage releasing equipment respectively.
2. fire control type AC low voltage power switch box as claimed in claim 1 is characterized in that: described fire integrated controller is made of comparator circuit, logical circuit, timing trigger, the second and the 3rd relay, wherein:
The output of described fire detector connects the input of comparator circuit;
The output of comparator circuit connects the input of logical circuit;
The output of logical circuit connects the coil of described acoustic-optic alarm, timing trigger and second relay respectively;
The start to exchange fire control end of calamity timer of the output of timing trigger;
Two normal opened contacts of second relay are controlled fire extinguisher electromagnetically operated valve and the 3rd relay respectively;
A normally closed contact control device for under-voltage releasing equipment coil of the 3rd relay, a normal opened contact control cabinet air deflector electromagnetically operated valve.
3. fire control type AC low voltage power switch box as claimed in claim 2, it is characterized in that: described comparator circuit is made of four resistance series connection dividing potential drop branch road, two comparators, three rest-set flip-flops, described logical circuit by two with door, two or, five not gates constitute, described acoustic-optic alarm comprises alarm lamp, trouble light and buzzer, wherein:
The output of described fire detector is added to the in-phase input end of first, second comparator and the inverting input of the 3rd comparator respectively after the current-voltage conversion, three dividing points of dividing potential drop branch road are connected with another input of three comparators respectively, and the set end of three rest-set flip-flops is sent in the output of three comparators respectively;
The output of second rest-set flip-flop connect first not gate and and the output of the 3rd rest-set flip-flop send into first or door together, the output of the output of first rest-set flip-flop and first not gate connect first with the door, first with the door output connect respectively second, four, five not gates and second or the door input, first or door and the output of second not gate through second with the input that connects the 3rd not gate, be informed of a case the respectively coil of warning lamp, trouble light, buzzer and second relay of the output of second～five not gate, second or the output of door connect the input of timing trigger.
4. fire control type AC low voltage power switch box as claimed in claim 1, it is characterized in that: described fire integrated controller is made of comparator circuit and microprocessor, this comparator circuit is made of four resistance series connection dividing potential drop branch road and three comparators, described acoustic-optic alarm comprises alarm lamp, trouble light and buzzer, wherein:
The output of described fire detector is added to the in-phase input end of first, second comparator and the inverting input of the 3rd comparator respectively behind electric current one voltage transformation, three dividing points of dividing potential drop branch road are connected with another input of three comparators respectively, and the output of three comparators is added to each input of microprocessor respectively;
The delivery outlet of microprocessor is respectively through driver be informed of a case warning lamp, trouble light, buzzer, fire timer, device for under-voltage releasing equipment coil, cabinet air deflector electromagnetically operated valve, fire extinguisher electromagnetically operated valve.
5. fire control type AC low voltage power switch box as claimed in claim 1 is characterized in that: described fire detector comprises smoke detector and heat detector, two detector parallel connections.
6. fire control type AC low voltage power switch box as claimed in claim 1, it is characterized in that: described fire extinguisher comprises main fire extinguisher, standby fire extinguisher and the control circuit that is made of the time relay, main fire extinguisher electromagnetically operated valve, standby fire extinguisher electromagnetically operated valve, pressure switch, wherein:
The normal opened contact string of the normal opened contact of the time relay and pressure switch is in the current supply circuit of the time relay and standby fire extinguisher electromagnetically operated valve, and the pressure switch of pressure switch is in parallel with its normal opened contact.
7. fire control type AC low voltage power switch box as claimed in claim 2, it is characterized in that: be connected to the self-checking circuit that constitutes by the self check button and first relay in the described fire integrated controller, one termination power of self check button, the input of another termination first relay and comparator circuit, the normally closed contact string of first relay is in the electric power loop of second relay.
8. fire control type AC low voltage power switch box as claimed in claim 2, it is characterized in that: be connected to by start button in the described fire integrated controller, start the emergency start circuit that trigger constitutes, start button is serially connected in power supply and starts between the control end of trigger, the output that starts trigger connect second relay coil and through second or door send the timing trigger.
9. fire control type AC low voltage power switch box as claimed in claim 2, it is characterized in that: be connected in the described fire integrated controller by ending button, ending the urgency stop circuit that trigger constitutes, be serially connected in power supply and, connect the coil of second relay by the output of trigger by button by between the control end of trigger.
10. fire control type AC low voltage power switch box as claimed in claim 2, it is characterized in that: be connected in the described fire integrated controller by reset button, two monostable triggers, two reset circuits that power supply relay constitutes, reset button be serially connected in and the input of monostable trigger between, the output of two monostable triggers drives two power supply relays, the output of one of them monostable trigger also connects the reset terminal of each trigger respectively, and the normally closed contact of two power supply relays is serially connected in respectively in the electric power loop of electromagnetically operated valve and relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97227882 CN2308179Y (en) | 1997-09-30 | 1997-09-30 | Fire-protection A. C. low-voltage distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97227882 CN2308179Y (en) | 1997-09-30 | 1997-09-30 | Fire-protection A. C. low-voltage distribution cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2308179Y true CN2308179Y (en) | 1999-02-17 |
Family
ID=33941166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97227882 Expired - Fee Related CN2308179Y (en) | 1997-09-30 | 1997-09-30 | Fire-protection A. C. low-voltage distribution cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2308179Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103311821A (en) * | 2013-05-27 | 2013-09-18 | 姬志刚 | Substation box with sound warning function |
| CN103346491A (en) * | 2013-07-04 | 2013-10-09 | 万能亿自动化科技（苏州）有限公司 | Flame retardant distribution box |
| CN103366486A (en) * | 2012-04-01 | 2013-10-23 | 西门子公司 | Fire behavior detector and timing method thereof |
| CN103845832A (en) * | 2012-11-30 | 2014-06-11 | 珠海格力电器股份有限公司 | Fire extinguishing apparatus and control method thereof, electric box, switch cabinet and electrical equipment |
| CN105024296A (en) * | 2014-04-23 | 2015-11-04 | 汉中特变电工有限责任公司 | Automatic fire-protection box-type mobile substation |
| CN105048325A (en) * | 2015-07-20 | 2015-11-11 | 国网上海市电力公司 | Transformer room of underground substation |
| CN106097632A (en) * | 2016-07-06 | 2016-11-09 | 李波 | A kind of domestic automatic fire prevention fire extinguishing system |
| CN106110555A (en) * | 2015-05-15 | 2016-11-16 | 上海磊诺安防技术股份有限公司 | A kind of Special automatic extinguisher for chemical laboratory |
| CN106856307A (en) * | 2017-02-25 | 2017-06-16 | 许玉蕊 | Nitrogen charging fire extinguishing box-type substation |
| CN107638649A (en) * | 2017-10-10 | 2018-01-30 | 苏州浔宇新材料科技有限公司 | A kind of fire control system of logic-based door |
| CN108877196A (en) * | 2018-08-01 | 2018-11-23 | 厦门四联信息技术有限公司 | A kind of two level framework infrared copy meter collectors based on Internet of Things |
-
1997
- 1997-09-30 CN CN 97227882 patent/CN2308179Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103366486A (en) * | 2012-04-01 | 2013-10-23 | 西门子公司 | Fire behavior detector and timing method thereof |
| CN103366486B (en) * | 2012-04-01 | 2016-01-13 | 西门子瑞士有限公司 | Fire case detector and timing method thereof |
| CN103845832A (en) * | 2012-11-30 | 2014-06-11 | 珠海格力电器股份有限公司 | Fire extinguishing apparatus and control method thereof, electric box, switch cabinet and electrical equipment |
| CN103311821A (en) * | 2013-05-27 | 2013-09-18 | 姬志刚 | Substation box with sound warning function |
| CN103346491A (en) * | 2013-07-04 | 2013-10-09 | 万能亿自动化科技（苏州）有限公司 | Flame retardant distribution box |
| CN105024296A (en) * | 2014-04-23 | 2015-11-04 | 汉中特变电工有限责任公司 | Automatic fire-protection box-type mobile substation |
| CN106110555A (en) * | 2015-05-15 | 2016-11-16 | 上海磊诺安防技术股份有限公司 | A kind of Special automatic extinguisher for chemical laboratory |
| CN105048325A (en) * | 2015-07-20 | 2015-11-11 | 国网上海市电力公司 | Transformer room of underground substation |
| CN106097632A (en) * | 2016-07-06 | 2016-11-09 | 李波 | A kind of domestic automatic fire prevention fire extinguishing system |
| CN106856307A (en) * | 2017-02-25 | 2017-06-16 | 许玉蕊 | Nitrogen charging fire extinguishing box-type substation |
| CN107638649A (en) * | 2017-10-10 | 2018-01-30 | 苏州浔宇新材料科技有限公司 | A kind of fire control system of logic-based door |
| CN108877196A (en) * | 2018-08-01 | 2018-11-23 | 厦门四联信息技术有限公司 | A kind of two level framework infrared copy meter collectors based on Internet of Things |
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