CN102614613A - Superfine dry powder fire extinguishing device and electric trigger device of fire extinguishing device - Google Patents
Superfine dry powder fire extinguishing device and electric trigger device of fire extinguishing device Download PDFInfo
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- CN102614613A CN102614613A CN2012101091723A CN201210109172A CN102614613A CN 102614613 A CN102614613 A CN 102614613A CN 2012101091723 A CN2012101091723 A CN 2012101091723A CN 201210109172 A CN201210109172 A CN 201210109172A CN 102614613 A CN102614613 A CN 102614613A
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- electric initiator
- extinguishing device
- signal processing
- heating wire
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- 239000000843 powder Substances 0.000 title claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 47
- 238000012545 processing Methods 0.000 claims abstract description 42
- 239000003999 initiator Substances 0.000 claims description 104
- 239000003814 drug Substances 0.000 claims description 43
- 238000009434 installation Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000004579 marble Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 239000000443 aerosol Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention provides an electric trigger device of a fire extinguishing device. By disposing a signal processing device between a connecting wire and a heating wire, an electrical connection circuit of the connecting wire and the heating wire is disconnected, and the connection circuit of the connecting wire and the heating wire is connected again after a fire signal is confirmed by a microprocessor chip in the signal processing device so that interference of electromagnetic signals or strong electrical signals in the circuit to the electric trigger device is avoided. The invention further provides a superfine dry powder fire extinguishing device with the electric trigger device structure of the fire extinguishing device, which resolves the problem that starting current in the circuit is overlarge when a plurality of electric trigger devices are started simultaneously.
Description
Technical field
The present invention relates to the fire-fighting equipment technical field, more particularly, relate to the electric initiator of a kind of ultrafine dry powder extinguishing installation and extinguishing device.
Background technology
The startup of extinguishing device generally has following several kinds of modes:
1) temp sensing type: like temperature-sensitive glass marble and fusible link, make structural support destroy unstability through experiencing variation of temperature, thus spraying fire-extinguishing agent.Stipulate the specification requirement and the test method of sprinkler tip in the GB5135.1-2003 national standard, wherein also comprised the specification requirement and the test method of temperature-sensitive glass marble and fusible link.
2) electromagnetic type:,, under the effect of electromagnetic force, extinguishing chemical is sprayed out through way of electromagnetic induction like magnetic valve.
3) electrothermal: the electric initiator as among the industry standards of public safety GA 499.1-2004 of the People's Republic of China (PRC) " GAFES ", be converted into heat energy through electric energy, make extinguishing chemical or the burning of burning medicament, thereby produce the spraying fire-extinguishing agent that expands.General aerosol fire-extinguishing device utilizes this mode to start exactly.
Number of patent application 2009101584875 discloses a kind of extinguishing device, and its starting drive is exactly a kind of novel starting drive of electrothermal electricity initiator and the combination of temperature-sensitive glass envelope.
The starting drive of prior art all works alone, and when obtaining enabled instruction, through enough electric currents, will start automatically.This starting drive can not carry out data with the control system and exchange, and in the long-term monitor procedure of extinguishing device, if the burst random failure, the control system knows nothing.Under failure condition, in case fire alarm takes place, the startup of system just can't guarantee, safe must not get ensure.
With electric initiator is that the operation principle of starting drive is following:
As shown in Figure 1, Fig. 1 is the structural representation of electric initiator in the prior art.A kind of starting current of electric initiator of typical electrical hot type starting drive generally is not less than 500 milliamperes; About 4 ohm of load; Normally between two leads 1, be connected with heating wire 2, heating wire 2 surfaces are soaked with the higher medicament of temperature susceplibility 11, are wrapped in the surface of heating wire 2 again with burning medicament and oxidant mixture 12; Damp-proof layers such as mixture 12 dry back outer surface dip-coating polyester lacquers just form electric initiator.When between the lead 1 when certain electric current, the electrothermal wire heating, the medicament 11 that ignites after the temperature is lighted mixture 12 again, forms the high heat of high temperature back and starts extinguishing device.
Whether through starting through electric current between the lead, this electric current can be very short electric current to the electric initiator of prior art fully, even as long as Millisecond.And controller and extinguishing device are far away usually, and corresponding conductor length is also just very long, so disturbed than being easier to, like electromagnetic interference such as large-size machine start and stop, electric welding machine operations, the possibility of misoperation are arranged also under the interference of thunder and lightning.Particularly be destroyed, even be to bump the possibility that connects forceful electric power also all to exist by the people at wire insulation.
On the other hand, under the situation of large space fire, start a plurality of fire-extinguishing apparatus simultaneously, so that the concentration of extinguishing chemical reaches the requirement of standard, this just needs a plurality of electric initiator to start simultaneously, will inevitably cause the too big problem of starting current.For example start 100 electric initiator simultaneously, if adopt the connected mode of parallel connection, starting current will reach 50 amperes, and is obviously too big.Even adopt the connected mode of connection in series-parallel and usefulness to start, be example with the DC24V power supply, per 10 electric initiator series connection are one the tunnel, series resistance is about 40 ohm, about 0.5 ampere of starting current.10 tunnel parallel connections more then, the minimum so electric current of also wanting 5 amperes.Consider the internal resistance (approximately with 4 ohm of calculating) of lead and power supply, if reach 5 Ampere currents, the voltage drop on lead and power supply will reach 20V, so almost be impossible realize.And the reliability reduction of series connection back, if an electric initiator fault is arranged, the electric initiator on the whole circuit of influence all can not be started.
Therefore, how having avoided the interference to electric initiator of electromagnetic signal in the circuit or forceful electric power signal, and further solved a plurality of electric initiator and start the excessive problem of starting current in the circuit that causes simultaneously, is present those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of this, the invention provides a kind of electric initiator of extinguishing device, to avoid the interference of electromagnetic signal in the circuit or forceful electric power signal to electric initiator.The present invention also provides a kind of extinguishing device, starts the excessive problem of starting current in the circuit that causes simultaneously with a plurality of electric initiator of further solution.
In order to achieve the above object, the present invention provides following technical scheme:
A kind of electric initiator of extinguishing device; Comprise and connect lead and heating wire; The surface of said heating wire is provided with first medicament; The surface of said first medicament is provided with second medicament, also comprises signal processing apparatus, and the input of said signal processing apparatus links to each other with said heating wire with the said lead that is connected respectively with output;
Said signal processing apparatus comprises:
The acquisition module that fire signal is gathered;
Said fire signal is confirmed the also microprocessor chip of transtation mission circuit connection signal;
With after receiving said circuit connection signal, the Executive Module of said connection lead of conducting and said heating wire.
Preferably, in the electric initiator of above-mentioned extinguishing device, said Executive Module is the electron tube of being connected by said microprocessor chip control.
Preferably, in the electric initiator of above-mentioned extinguishing device, said second medicament is integral the formula structure with said signal processing apparatus and said first medicament parcel.
Preferably, in the electric initiator of above-mentioned extinguishing device, said signal processing apparatus also comprises the generation address corresponding address module with fire signal.
Preferably, in the electric initiator of above-mentioned extinguishing device, said address module is the digital ID address that is preset on the said signal processing apparatus.
Preferably, in the electric initiator of above-mentioned extinguishing device, said signal processing device is changed to integrated circuit.
A kind of ultrafine dry powder extinguishing installation comprises controller and a plurality of electric initiator that is attached thereto, and a plurality of said electric initiator are the electric initiator like aforesaid extinguishing device.
Preferably, in above-mentioned ultrafine dry powder extinguishing installation, said controller links to each other with a plurality of said initiator through bus.
Preferably, in above-mentioned ultrafine dry powder extinguishing installation, the digital ID address of any two said electric initiator is different.
The electric initiator of extinguishing device provided by the invention; Comprise and connect lead, heating wire and connecting the signal processing apparatus that is provided with between lead and the heating wire; The surface of heating wire is disposed with first medicament and second medicament; Connect lead and link to each other with the input of signal processing apparatus, heating wire connects into the output of signal processing apparatus.Signal processing apparatus comprises acquisition module, microprocessor chip and Executive Module; The electricity initiator is after receiving fire signal, and fire signal is input in the signal processing apparatus through connecting lead, and acquisition module is gathered fire signal and fire signal is passed to microprocessor chip; Microprocessor chip receives this fire signal and fire signal is confirmed; Fire signal is confirmed back transtation mission circuit connection signal to Executive Module, and the Executive Module conducting connects lead and heating wire, makes heating wire get; Heating wire gets electric back first medicament and second medicament of igniting respectively that generate heat, thereby the electric initiator of extinguishing device is triggered.Through connecting signalization treating apparatus between lead and the heating wire; Its electrical connection circuit that will connect lead and heating wire breaks off; And conducting heating wire again after the micro treatment module in signal processing apparatus is confirmed fire signal, thereby avoided the interference of electromagnetic signal in the circuit or forceful electric power signal to electric initiator.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of electric initiator in the prior art;
The structural representation of the electric initiator of the extinguishing device that Fig. 2 provides for present embodiment;
The structural representation of the electric initiator of the extinguishing device of the integral type that Fig. 3 provides for present embodiment;
The line sketch map of the ultrafine dry powder extinguishing installation that Fig. 4 provides for present embodiment.
The specific embodiment
The invention discloses a kind of electric initiator of extinguishing device, avoided the interference of electromagnetic signal in the circuit or forceful electric power signal electric initiator.The present invention also provides a kind of extinguishing device, has further solved a plurality of electric initiator and has started the excessive problem of starting current in the circuit that causes simultaneously.
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, complete description, obviously, described true example only is the true example of the present invention's part, rather than whole embodiment.Based on embodiments of the invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
As shown in Figure 2, the structural representation of the electric initiator of the extinguishing device that Fig. 2 provides for present embodiment.
Present embodiment provides a kind of electric initiator of extinguishing device; Comprise and connect lead 3, heating wire 5 and connecting signalization treating apparatus 4 between lead 3 and the heating wire 5; The surface of heating wire 5 is disposed with first medicament 21 and second medicament 22; First loop that connects lead 3 places links to each other with the input of signal processing apparatus 4, and heating wire 5 connects into the output of signal processing apparatus 4.Signal processing apparatus 4 comprises acquisition module, little process chip and Executive Module, and acquisition module is gathered fire signal and fire signal is passed to microprocessor chip, after microprocessor chip is confirmed fire signal, and the transtation mission circuit connection signal.Executive Module receiving circuit connection signal, and conducting heating wire 5 be connected lead 3, make heating wire 5.
The course of work of the electric initiator of the extinguishing device that present embodiment provides is following:
The electric initiator of extinguishing device is after receiving fire signal; Fire signal is input in the signal processing apparatus 4 through connecting lead 3, and acquisition module is gathered fire signal and fire signal is passed to microprocessor chip; Microprocessor chip is confirmed fire signal; And fire signal is being confirmed back transtation mission circuit connection signal to Executive Module, Executive Module conducting heating wire 5 be connected lead 3, make that heating wire 5 must.Heating wire 5 ignite respectively after electric first medicament 21 and second medicament 22, thereby make the electric initiator triggering of extinguishing device.
The electric initiator of the extinguishing device that present embodiment provides; Through connecting signalization treating apparatus 4 between lead 3 and the heating wire 5; It will connect lead 3 and with heating wire 5 disconnection of electrical connection circuit will be set; And after the micro treatment module in signal processing apparatus 4 is confirmed fire signal again conducting heating wire 5 be connected lead 3, thereby avoided the interference of electromagnetic signal in the circuit or forceful electric power signal to electric initiator.
In order further to optimize technique scheme, in the extinguishing device that present embodiment provides, Executive Module is the electron tube of being connected by microprocessor chip control.Microprocessor is the integrated circuit of able to programmeization, in its all miniaturization of components to one or a few blocks integrated circuit.Microprocessor can be accepted coded command at one of which end or multiterminal, carries out the signal that its state is described in this instruction and output.The microprocessor chip that present embodiment provides has functions such as storage, computing, judgement and communication, and it can drive the load that is not less than 500mA after the enabled instruction that receives fire signal.
After the electric initiator of extinguishing device was confirmed fire signal, this moment, fire signal became the enabling signal of the electric initiator of extinguishing device, and microprocessor chip control electron tube is connected; Connect lead 3 and heating wire 5 conductings; Heating wire 5 heatings, when heating wire reached the ignition temperature of first medicament 21, first medicament 21 was ignited; And then second medicament 22 that is arranged at first medicament surface is ignited electric initiator startup.
As shown in Figure 3, the structural representation of the electric initiator of the extinguishing device of the integral type that Fig. 3 provides for present embodiment.
In the electric initiator of the extinguishing device of the integral type that present embodiment provides, second medicament 32 is rolled into integral structure with the signal processing apparatus 34 and first medicament 31.The electricity initiator is after startup; First medicament 21 and second medicament 34 are all lighted, when second medicament only is arranged on first medicament outside, promptly; When second medicament 22 of first medicament 21 and parcel first medicament 21 only is set respectively in the outside of heating wire 5; Damage only can be caused to heating wire 5 in first medicament 21 and second medicament, 22 burning backs, and can signal processing apparatus 4 not exerted an influence, thereby makes signal processing apparatus 4 to reuse; After electric initiator starts, only need that the electric initiator in back is changed at heating wire 5 positions and can proceed to use.
Be wrapped in the outside of the signal processing apparatus 34 and first medicament 31 when second medicament 32; When soon signal processing apparatus 4 is bundled together with heating wire 35; Need not between signal processing apparatus 34 and the heating wire 35 to cut off and open; Promptly need not to reserve the safe space of first medicament 31 and 32 burnings of second medicament; Though possibly when first medicament 31 and 32 burnings of second medicament, burn signal processing apparatus 34, the electric initiator of integral structure has reduced the wiring between signal processing apparatus 34 and the heating wire 35, thereby has improved the reliability that electric initiator is used.Simultaneously, the electric initiator of integral structure has significantly reduced the size of self.
In order further to optimize technique scheme, in the electric initiator that present embodiment provides, signal processing apparatus also comprises the generation address corresponding address module with fire signal.Extinguishing device is provided with a plurality of electric initiator in different places; After the control system of extinguishing device receives fire signal; According to preset interlock programming, send fire signal to the electric initiator corresponding with the fire address, this fire signal is the enabling signal of electric initiator.Be arranged on the module that is used to realize positioning function that address module on the signal processing apparatus is the fire address.
Concrete, address module is the digital ID address that is preset on the signal processing apparatus.Through digital ID address is set on signal processing apparatus; Each signal processing apparatus has promptly had address information separately; Then when controller sends fire signal to signal processing apparatus; Can confirm the position of each electric initiator according to the difference of digital ID address, and can realize different electric initiator is carried out independent control.
Signal processing apparatus is set to integrated circuit.Integrated circuit can be integrated into modules such as micro treatment module, Executive Module and address module in the surface-mounted integrated circuit; And utilize that the integrated circuit volume is little, in light weight, characteristics such as lead-out wire and pad are few; Can make electric initiator have the reliability height, the characteristics that can be mass-produced.
As shown in Figure 4, the line sketch map of the ultrafine dry powder extinguishing installation that Fig. 4 provides for present embodiment.
Electric initiator based on the extinguishing device that provides in the foregoing description; The present invention also provides a kind of ultrafine dry powder extinguishing installation; Comprise controller 8 and a plurality of electric initiator 6 that links to each other with controller 8, the electric initiator that this ultrafine dry powder extinguishing installation is provided with is the electric initiator of the extinguishing device that provides in the foregoing description.
Because this ultrafine dry powder extinguishing installation has adopted the electric initiator of the extinguishing device of the foregoing description, so the beneficial effect that this ultrafine dry powder extinguishing installation is brought by the electric initiator of extinguishing device please refer to the foregoing description.
In the ultrafine dry powder extinguishing installation that present embodiment provides, in the environment of large space, controller 8 links to each other with the electric initiator 6 of a plurality of extinguishing devices through bus 7.Controller 8 can be managed the electric initiator 6 of a plurality of extinguishing devices through bussing technique; And can be through in each electric initiator 6; The fault-signal that first path that is connected with electric initiator 6 reads electric initiator short circuit or opens circuit; Thereby can utilize controller that the running status of the electric initiator of extinguishing device is monitored, guarantee the security of ultrafine dry powder extinguishing installation in start-up course.
The digital ID address of the electric initiator 6 of any two extinguishing devices is all different; The digital ID address of electric initiator that is each extinguishing device is unique; Then controller 8 can be preset the Different control programs according to each electric initiator 6, as the electric initiator according to the signal enabling of the fire address a plurality of digital ID address corresponding with the fire address is set, and controls a plurality of electric initiator time-delay sequence startings; Because stagger the start-up time of each electric initiator each other; Thereby when having avoided a plurality of electric initiator to start simultaneously, the excessive problem of electric current in the circuit has guaranteed the security that ultrafine dry powder extinguishing installation starts.The time of delayed startup can reach Millisecond according to the bit wide setting of Different control device and electric initiator, so that and be complementary the start-up time of electric initiator.
The electric initiator 6 of a plurality of extinguishing devices is parallel on the controller through bus 7; Therefore controller must carry out according to agreement the various operations of each electric initiator, and basic operating protocol can be the electric initiator of all extinguishing devices of initialization (transmission reset pulse)-sending function order-transmission storage operation order-deal with data.When whole ultrafine dry powder extinguishing installation system initialization was accomplished, all electric initiator that link to each other with controller all can register on the controller.When if any one electric initiator breaks down, controller can't detect the digital ID address of this electric initiator, therefore can monitor the fault of electric initiator easily, improve the reliability that starts.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (9)
1. the electric initiator of an extinguishing device; Comprise and connect lead (3) and heating wire (5); The surface of said heating wire (5) is provided with first medicament (21), and the surface of said first medicament (21) is provided with second medicament (22), it is characterized in that; Also comprise signal processing apparatus (4), the input of said signal processing apparatus (4) links to each other with said heating wire (5) with the said lead (3) that is connected respectively with output;
Said signal processing apparatus (4) comprising:
The acquisition module that fire signal is gathered;
Said fire signal is confirmed the also microprocessor chip of transtation mission circuit connection signal;
With after receiving said circuit connection signal, the Executive Module of said connection lead of conducting (3) and said heating wire (5).
2. the electric initiator of extinguishing device according to claim 1 is characterized in that, said Executive Module is the electron tube of being connected by said microprocessor chip control.
3. the electric initiator of extinguishing device according to claim 1 is characterized in that, said second medicament (32) is rolled into integral structure with said signal processing apparatus (34) and said first medicament (31).
4. the electric initiator of extinguishing device according to claim 1 is characterized in that, said signal processing apparatus (4) also comprises the generation address corresponding address module with fire signal.
5. the electric initiator of extinguishing device according to claim 4 is characterized in that, said address module is the digital ID address that is preset on the said signal processing apparatus.
6. the electric initiator of extinguishing device according to claim 1 is characterized in that, said signal processing device is changed to integrated circuit.
7. ultrafine dry powder extinguishing installation, a plurality of electric initiator (6) that comprises controller (8) and be attached thereto is characterized in that, a plurality of said electric initiator (6) are the electric initiator like any described extinguishing device among the right 1-6.
8. ultrafine dry powder extinguishing installation according to claim 7 is characterized in that, said controller (8) links to each other with a plurality of said electric initiator (6) through bus (7).
9. ultrafine dry powder extinguishing installation according to claim 8 is characterized in that, the digital ID address of any two said electric initiator (6) is different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210109172.3A CN102614613B (en) | 2012-04-13 | 2012-04-13 | Superfine dry powder fire extinguishing device and electric trigger device of fire extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210109172.3A CN102614613B (en) | 2012-04-13 | 2012-04-13 | Superfine dry powder fire extinguishing device and electric trigger device of fire extinguishing device |
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| Publication Number | Publication Date |
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| CN102614613A true CN102614613A (en) | 2012-08-01 |
| CN102614613B CN102614613B (en) | 2015-02-11 |
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| CN201210109172.3A Active CN102614613B (en) | 2012-04-13 | 2012-04-13 | Superfine dry powder fire extinguishing device and electric trigger device of fire extinguishing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105498121A (en) * | 2016-01-26 | 2016-04-20 | 山东华硕能源科技有限公司 | Vehicle-mounted flame-retardant explosion suppression device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2514861Y (en) * | 2001-12-21 | 2002-10-09 | 沈阳市通适达自动灭火技术有限公司 | Enclosed water spray fire extinguisher |
| CN201070502Y (en) * | 2007-01-05 | 2008-06-11 | 陕西坚瑞化工有限责任公司 | Bidirectional horizontal spray type airosol fire-extinguishing equipment |
| CN201840803U (en) * | 2010-08-25 | 2011-05-25 | 华伟 | Automatic fire extinguishing system for automobiles |
-
2012
- 2012-04-13 CN CN201210109172.3A patent/CN102614613B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2514861Y (en) * | 2001-12-21 | 2002-10-09 | 沈阳市通适达自动灭火技术有限公司 | Enclosed water spray fire extinguisher |
| CN201070502Y (en) * | 2007-01-05 | 2008-06-11 | 陕西坚瑞化工有限责任公司 | Bidirectional horizontal spray type airosol fire-extinguishing equipment |
| CN201840803U (en) * | 2010-08-25 | 2011-05-25 | 华伟 | Automatic fire extinguishing system for automobiles |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105498121A (en) * | 2016-01-26 | 2016-04-20 | 山东华硕能源科技有限公司 | Vehicle-mounted flame-retardant explosion suppression device |
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Effective date of registration: 20230609 Address after: Room 101, Building 23, Optics Valley Software Park, No. 396, Emeishan Road, Huangdao District, Qingdao City, Shandong Province, 266555 Patentee after: Qingdao Yangguang electrical appliance Engineering Co.,Ltd. Address before: 266423 Tieshan Industrial Park, Huangdao District, Qingdao City, Shandong Province Patentee before: QINGDAO SUNYFIRE SCIENCE & TECHNOLOGY SHARES Co.,Ltd. |