A kind of automatic control circuit of lithium battery LED fire emergency lamp
Technical field
The utility model relates to a kind of circuit structure of fire emergency lamp, is meant that more particularly a kind of is the emergency light circuit of luminous component with lithium battery as energy storage component, with LED.
Background technology
Fire emergency lamp is a requisite product in the fire protection equipment, the different fire-fighting emergent modulated structure of form appears in the prior art, because traditional fire emergency lamp adopts conventional light source and battery, because the power ratio of conventional light source is bigger, the needed battery capacity of emergency light is just than higher, the volume structure heaviness of conventional batteries in addition, make traditional fire-fighting emergent modulated structure huge, high material consumption, not only make become comparison clumsiness, inconvenience of emergency light product install and to carry, also earth resource is caused waste simultaneously.
According in the defective of above-mentioned prior art, be necessary to utilize a kind of new fire emergency lamp circuit structure of new light-emitting component and battery energy storage technological development.
The utility model content
The purpose of this utility model is to provide a kind of novel fire-fighting emergent lamp control circuit for overcoming the deficiencies in the prior art, and this emergency light is light-emitting component with LED, with lithium battery as energy storage component.
The utility model technology contents is: a kind of automatic control circuit of lithium battery LED fire emergency lamp, and its feature comprises microcontroller, and the power supply unit, energy storage component, input block, output block and the luminous component that connect with microcontroller; Described energy storage component comprises battery and charge switch, and described input block comprises control button and the power sense circuit that connects with power supply unit, and described luminous component comprises LED lamp group and LED lamp switch; Described output block comprises buzzer and indicator light, and described charge switch is provided with the control end that connects with microcontroller; Battery connects with the LED lamp switch; When described microcontroller received the non-transformer signal of power sense circuit, output emergency lighting signal was to the LED lamp switch, and output alarm signal is to output block, the conducting of LED lamp switch, and battery-operated LED lamp group is luminous.
Its further technology contents is: described power supply unit comprises power input, the reduction voltage circuit that connects with power input, the filter circuit that connects with reduction voltage circuit and the Voltage stabilizing module that connects with filter circuit; Described Voltage stabilizing module connects with microcontroller, charge switch.
Its further technology contents is: described reduction voltage circuit is the resistance capacitance reduction voltage circuit, and described battery is a lithium battery.
Its further technology contents is: described charge switch is a triode, and the base stage series limiting resistor of described triode connects with microcontroller.
Its further technology contents is: described power sense circuit is the transistor circuit that base stage is provided with biasing resistor, the transistor emitter ground connection of described transistor circuit, and collector electrode connects with microcontroller.
Its further technology contents is: described LED lamp switch is the transistor circuit that base stage is provided with biasing resistor, the transistor emitter ground connection of described transistor circuit, and collector electrode connects with the negative pole of LED lamp group.
Its further technology contents is: described control button comprises start button and testing button.
Its further technology contents is: described indicator light comprises operation, warning, three state LED light of test.
Its further technology contents is: described microcontroller is a HT46R51 type single-chip microcomputer.
The utility model beneficial effect compared with prior art is: the utility model is because adopt LED as light-emitting component, have few, the energy-conservation characteristics of power consumption, reduced the capacity of energy-storage battery simultaneously, again because of having adopted lithium battery as energy-storage battery, make the utility model product further reduce the overall structure size, adopt the resistance drop volt circuit, the cost of raw material of having saved transformer has good marketing application prospect.
Below in conjunction with the drawings and specific embodiments the utility model is further described.
Description of drawings
Fig. 1 is the circuit block diagram of the automatic control circuit specific embodiment of a kind of lithium battery LED fire emergency lamp of the utility model;
Fig. 2 is the circuit theory diagrams of the automatic control circuit specific embodiment of a kind of lithium battery LED fire emergency lamp of the utility model.
The accompanying drawing identifier declaration
1 microcontroller, 2 power supply units
21 power inputs, 22 reduction voltage circuits
23 filter circuits, 24 Voltage stabilizing modules
3 input blocks, 31 control buttons
32 power sense circuits, 4 energy storage components
41 batteries, 42 charge switchs
5 luminous component 51LED lamp groups
52LED lamp switch 6 output blocks
61 buzzers, 62 indicator lights
Embodiment
In order to more fully understand technology contents of the present utility model, the technical solution of the utility model is further introduced and explanation below in conjunction with specific embodiment.
As depicted in figs. 1 and 2, the automatic control circuit of a kind of lithium battery LED fire emergency lamp of the utility model comprises microcontroller 1, and the power supply unit 2, energy storage component 4, input block 3, output block 6 and the luminous component 5 that connect with microcontroller 1; Energy storage component 4 comprises battery 41 and charge switch 42, and input block 3 comprises control button 31 and the power sense circuit 32 that connects with power supply unit 2, and luminous component 5 comprises LED lamp group 51 and LED lamp switch 52; Output block 6 comprises buzzer 61 and indicator light 62, and charge switch 42 is provided with the control end that connects with microcontroller 1; Battery 41 connects with LED lamp switch 52; When microcontroller 1 received the non-transformer signal of power sense circuit 32, output emergency lighting signal was to LED lamp switch 52, and output alarm signal is to output block 6,52 conductings of LED lamp switch, and battery 41 driving LED lamp groups 51 are luminous.Power supply unit 2 comprises power input 21, the reduction voltage circuit 22 that connects with power input 21, the filter circuit 23 that connects with reduction voltage circuit 22 and the Voltage stabilizing module 24 that connects with filter circuit 23; Voltage stabilizing module 24 connects with microcontroller 1, charge switch 42.
In Fig. 2, reduction voltage circuit 2 be the resistance capacitance reduction voltage circuit (by C12, the R25 of parallel connection, the formation of connecting with R26 again, this circuit and filter circuit are cascaded, power input also is parallel with piezo-resistance 7D471), battery 41 is lithium battery BT (3.6V 500mA).Charge switch 42 is triode Q1, and the base stage series limiting resistor R2 of triode Q1 connects with the PA3 pin of microcontroller IC1.Power sense circuit 32 is provided with the transistor circuit of biasing resistor (R1 and R16) for base stage, the triode Q3 grounded emitter of transistor circuit, and collector electrode connects with microcontroller PA2 pin.The LED lamp switch is the transistor circuit that base stage is provided with biasing resistor (R3 and R17), the triode Q5 emitter and the ground connection of transistor circuit, and collector electrode connects with the negative pole (2 pin of LED lamp winding line end J2, J3) of LED lamp group.Control button comprises start button (S2 among Fig. 2) and testing button (S1 among Fig. 2).Indicator light comprises operation (LED3 among Fig. 2), reports to the police (LED2 among Fig. 2), tests (LED1 among Fig. 2) three state LED light, and LED lamp group also is divided into two groups, and each group is parallel with several LED luminous tubes.Microcontroller is a HT46R51 type single-chip microcomputer.
In sum, the utility model is because adopt LED as light-emitting component, have few, the energy-conservation characteristics of power consumption, reduced the capacity of energy-storage battery simultaneously, because of having adopted lithium battery, make the utility model product further reduce the overall structure size again, adopt the resistance drop volt circuit as energy-storage battery, save the cost of raw material of transformer, had good marketing application prospect.
The above only further specifies technology contents of the present utility model with embodiment; so that the reader is more readily understood; but do not represent execution mode of the present utility model to only limit to this, any technology of doing according to the utility model is extended or recreation, all is subjected to protection of the present utility model.Protection range of the present utility model is as the criterion with claims.