A kind of vehicle extinguishing device
Technical field
The utility model relates to a kind of vehicle extinguishing device.
Background technology
More and more universal along with automobile, also more and more receive people's concern to the safety guarantee of automobile; Automobile is in long-time driving process, easily because continue the accumulation of heat, cause short circuit or some device fire that causes on fire in automobile, perhaps because automobile travels in hot environment, easily spontaneous combustion, in prior art, there is no effective method and device with fire extinguishing, in view of this, be necessary to design that a kind of cost is low, easy to implement, the vehicle extinguishing device of good reliability.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of vehicle extinguishing device, and this vehicle extinguishing device is easy to implement, and good extinguishing effect is swift in response.
The technical solution of utility model is as follows:
A kind of vehicle extinguishing device, comprise control circuit and fire extinguisher; Control circuit comprises power supply circuits, branch road and temperature control branch road detonate; Power supply circuits, detonate branch road and all parallel connections of temperature control branch road;
In power supply circuits, two termination car direct current power supplies of the coil of relay J 1; The central contact of relay J 1 is as the positive output end of power supply circuits; Another output of power supply circuits is ground; The normally opened contact of relay J 1 connects the anode of car direct current power supply; The normally-closed contact of relay J 1 connects the anode of automobile standby battery; Automobile standby battery and car direct current power supply are altogether;
A route temperature sensing cable (6) that detonates is in series with igniter (4), and igniter is arranged in fire extinguisher, for triggering fire extinguisher;
The coil that route temperature detect switch (TDS) (3) and relay J 2 are propped up in temperature control is in series; The normally closed switch K2 of relay J 2 correspondences is serially connected in oil supply circuit.[when relay J 2 normally closed switch disconnect, oil supply circuit opens circuit, and fuel cut-off is removed hidden danger, the protection automotive safety]
Fire extinguisher comprises the absorbing and cooling temperature layer (5) that the extinguishing chemical (2) of filling in container (1), container and container top arrange; Igniter is arranged in extinguishing chemical; Described temperature detect switch (TDS) (3) is arranged in the sidewall of container.
The material of absorbing and cooling temperature layer is magnesium carbonate; Container adopts fire-resistant cotton material; Extinguishing chemical is S type aerosol.
Beneficial effect:
Vehicle extinguishing device of the present utility model, control electrical source exchange by relay J 1, makes fire extinguisher adopt the car direct current power supply power supply when normal operation, adopts the reserve battery power supply during car direct current power supply fault, thereby have high reliability in power supply;
In addition, respond to the temperature at Automobile case lid place by temperature sensing cable, when temperature reaches predetermined temperature, (when on fire), ignite fire extinguisher by igniter, in time to stamp out the flames in time.
Further, by the break-make of relay J 2 and temperature detect switch (TDS) oil circuit control, when temperature sharply raises, when (while occurring as fire), cut off in time oil circuit, in the mode of taking away the firewood under the cauldron, avoid fire incident to spread, further ensured the fire extinguishing effect.
The simple structure of fire extinguisher is reliable, easy to implement.
In sum, this vehicle extinguishing device reliability is high, good extinguishing effect, and cost is low, is easy to promotion and implementation, has significant economic benefit and social benefit, is conducive in the property safety and the personal safety that ensure the car owner.
The accompanying drawing explanation
Fig. 1 is the general structure block diagram of vehicle extinguishing device of the present utility model.
Fig. 2 is the control circuit figure of the vehicle extinguishing device of utility model.
Label declaration: label declaration: 1-container, 2-extinguishing chemical, 3-temperature detect switch (TDS), 4-igniter, 5-absorbing and cooling temperature layer; The 6-temperature sensing cable;
Temperature detect switch (TDS) claims again the temperature-sensitive feedback device; Igniter claims again initiator.
The specific embodiment
Below with reference to the drawings and specific embodiments, the utility model is described in further details:
Embodiment 1:
As shown in Figure 1-2, a kind of vehicle extinguishing device, comprise control circuit and fire extinguisher; Control circuit comprises power supply circuits, branch road and temperature control branch road detonate; Power supply circuits, detonate branch road and all parallel connections of temperature control branch road;
In power supply circuits, two termination car direct current power supplies of the coil of relay J 1; The central contact of relay J 1 is as the positive output end of power supply circuits; Another output of power supply circuits is ground; The normally opened contact of relay J 1 connects the anode of car direct current power supply; The normally-closed contact of relay J 1 connects the anode of automobile standby battery; Automobile standby battery and car direct current power supply are altogether;
The route temperature sensing cable 6 that detonates is in series with igniter 4, and igniter is arranged in fire extinguisher, for triggering fire extinguisher;
The coil that route temperature detect switch (TDS) 3 and relay J 2 are propped up in temperature control is in series; The normally closed switch K2 of relay J 2 correspondences is serially connected in oil supply circuit.[when relay J 2 normally closed switch disconnect, oil supply circuit opens circuit, and fuel cut-off is removed hidden danger, the protection automotive safety]
Fire extinguisher comprises the absorbing and cooling temperature layer 5 that the extinguishing chemical 2 of filling in container 1, container and container top arrange; Igniter is arranged in extinguishing chemical; Described temperature detect switch (TDS) 3 is arranged in the sidewall of container.
The material of absorbing and cooling temperature layer is magnesium carbonate; Container adopts fire-resistant cotton material; Extinguishing chemical is S type aerosol.
The automobile fire extinguishing method that vehicle extinguishing device is corresponding: adopt aforesaid vehicle extinguishing device;
Carry out electrical source exchange by relay J 1 switching; When car direct current power supply has electricity, the normally opened contact of relay J 1 and intermediate contact conducting, be branch road and the power supply of temperature control branch road of detonating by car direct current power supply; Car direct current power supply is during without electricity, and the normally-closed contact of relay J 1 and intermediate contact conducting, be detonate branch road and the power supply of temperature control branch road by automobile standby battery;
Start fire extinguisher by the branch road that detonates with temperature sensing cable and igniter, temperature sensing cable is short circuit after being heated, and igniter detonates, the spray fire extinguishing agent fire extinguishing;
By relay J 2 with the break-make of the temperature control branch road oil circuit control of temperature detect switch (TDS); When temperature is elevated to 85 while spending, the temperature detect switch (TDS) conducting, the coil electricity of relay J 2, the normally closed switch K2 of relay J 2 disconnects, and cuts off automobile fuel feeding path.
The vehicle extinguishing device control principle:
Power unit: this circuit adopts the input of two-way power supply, is respectively the input of automobile DC12V power supply and internal backup battery DC12V.The switching of two-way power supply is completed by relay J 1 and contact K1.J1 obtains after vehicle-mounted 12V power supply moving K1 under normal circumstances, the central contact of K1 and normally opened contact closure, and now by vehicle power, being given fire extinguishing and cut the fuel feeding control circuit provides power supply, and reserve battery is in Light Condition.If automobile power source can not provide power supply to extinguishing device for some reason, now the coil of J1 can not get power supply, releasing contact K1, and being given fire extinguishing and cut oil supply circuit by reserve battery provides power supply.
The fire extinguishing part: before automobile during case generation fire alarm, the rear short circuit of being heated of the temperature sensing cable on deck lid, power supply makes the igniter action by temperature sensing cable, and igniter starts to trigger the extinguishing chemical release medicine and starts fire extinguishing.
Cut the fuel feeding part: the heat-sensing device on vehicle extinguishing device is in open-circuit condition under normal circumstances, and J2 is failure to actuate, and K2 is in normally off, to guarantee the oil pump normal operation.When breaking out of fire discharges extinguishing medium, heat-sensing device is subject to the high temperature triggering to be low resistance, and now J2 will move, and make K2 in off-state, stop the power supply of oil pump, cut off fuel feeding, prevent that the intensity of a fire from continuing to spread.
The effect of electric detonator is point quick-fried (startup) extinguishing medium, makes medicament start to eject;
Temperature-sensitive feedback device (also being called temperature detect switch (TDS)) belongs to off-state at ordinary times, the resistance infinity, and when temperature is elevated to 85 while spending, thermistor is considered as short circuit, makes the coil electricity of relay J 2;
Temperature sensing cable is for temperature sensor, and when external temperature moment raises and reaches the startup value, horse back starts electric detonator and spraying medicine.