CN204354903U - A kind of beam excitation formula automobile lamp intelligence circuit breaking protective system - Google Patents
A kind of beam excitation formula automobile lamp intelligence circuit breaking protective system Download PDFInfo
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- CN204354903U CN204354903U CN201420716899.2U CN201420716899U CN204354903U CN 204354903 U CN204354903 U CN 204354903U CN 201420716899 U CN201420716899 U CN 201420716899U CN 204354903 U CN204354903 U CN 204354903U
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Abstract
The utility model discloses a kind of beam excitation formula automobile lamp intelligence circuit breaking protective system, primarily of integrated chip AL, control circuit, the time meter be connected with the OUT1 pin of integrated chip AL, the photo resistor RL be connected with control circuit, the overvoltage crowbar be connected with the CTRL pin of integrated chip AL, the relay K be connected with overvoltage crowbar, and the diode group be serially connected between control circuit and automobile lamp switch J forms, it is characterized in that, beam excitation formula logic amplifying circuit is also serially connected with between integrated chip AL and control circuit.The utility model can driver forget turn off automobile lamp time automatically cutting off power source, thus effectively can stop the depleted situation of Vehicular accumulator cell and occur, farthest extend the service life of automotive bulb and storage battery.
Description
Technical field
The utility model relates to a kind of protector, specifically refers to a kind of automobile lamp intelligence power-off protector that intelligently can turn off automobile lamp.
Background technology
Automobile is current the most widely used a kind of vehicle, but many automobilists forget after often stopping and turn off automobile headlamp, in time restarting automobile next time, the electric energy of Vehicular accumulator cell just approach exhaustion, cannot the situation of start the engine again.In addition, the vehicle of sometimes exercising, the daytime opens headlight, and driver is also entirely ignorant of, the service life of reduction car light that not only can be serious, and can shorten the service life of storage battery, is unfavorable for demand energy-conservation at present.
Utility model content
The purpose of this utility model is to overcome the defect also not having to automatically shut down in time after automobilist forgets to turn off car light its car lamp device at present on the market, provides a kind of beam excitation formula automobile lamp intelligence circuit breaking protective system.
The purpose of this utility model is achieved through the following technical solutions: a kind of beam excitation formula automobile lamp intelligence circuit breaking protective system; primarily of integrated chip AL; control circuit; the time meter be connected with the OUT1 pin of integrated chip AL; the photo resistor RL be connected with control circuit; the overvoltage crowbar be connected with the CTRL pin of integrated chip AL, the relay K be connected with overvoltage crowbar, and the diode group be serially connected between control circuit and automobile lamp switch J forms.Meanwhile, between integrated chip AL and control circuit, be also serially connected with beam excitation formula logic amplifying circuit, this beam excitation formula logic amplifying circuit is primarily of power amplifier P2, NAND gate IC1, NAND gate IC2, NAND gate IC3, negative pole is connected with the electrode input end of power amplifier P2, the polar capacitor C2 of positive pole ground connection after optical diode D4, one end is connected with the positive pole of polar capacitor C2, the resistance R11 of other end ground connection after diode D5, positive pole is connected with the point of connection of diode D5 with resistance R11, the polar capacitor C4 of negative earth, one end is connected with the negative input of NAND gate IC1, the resistance R7 that the other end is connected with the electrode input end of power amplifier P2, be serially connected in the resistance R8 between the negative input of power amplifier P2 and mouth, one end is connected with the mouth of NAND gate IC1, the resistance R9 that the other end is connected with the negative input of NAND gate IC3, positive pole is connected with the mouth of NAND gate IC2, the electric capacity C3 that negative pole is connected with the negative input of NAND gate IC3, and one end is connected with the positive pole of polar capacitor C4, the resistance R10 that the other end is connected with the negative input of NAND gate IC2 forms, the electrode input end of described NAND gate IC1 is connected with the negative input of power amplifier P2, and its mouth is connected with the electrode input end of NAND gate IC2, the electrode input end of NAND gate IC3 is connected with the mouth of power amplifier P2, and its mouth is then connected with the SW pin of integrated chip AL, the positive pole of described polar capacitor C2 is connected with control circuit, and the normally closed contact K1 of described relay K is then serially connected on automobile lamp electric power loop.
Described control circuit comprises: aerotron VT1, aerotron VT2, one end is connected with the base stage of aerotron VT1, the resistance R1 of other end external automobile motor switch, the resistance R2 that one end is connected with the collecting electrode of aerotron VT1, the other end is connected with automobile lamp switch J through diode group, one end is connected with the emitter of aerotron VT1, the other end is in turn through resistance R3 that light-emitting diode D3 is connected with the emitter of aerotron VT2 after resistance R4; The base stage of aerotron VT2 is connected with the collecting electrode of aerotron VT1, and the collecting electrode of aerotron VT2 is connected with diode group, and the emitter of aerotron VT2 is then connected with the positive pole of polar capacitor C2; Described photo resistor RL is then serially connected between the base stage of aerotron VT1 and the point of connection of resistance R3 and light-emitting diode D3.
Described overvoltage crowbar comprises power amplifier P1, resistance R5, resistance R6, field effect transistor MOS, inductance L 1 and electric capacity C1; Wherein, the electrode input end of power amplifier P1 is connected with the CTRL pin of integrated chip AL, and its negative input is connected with the negative input of NAND gate IC3 after resistance R5, and its mouth is then connected with the grid of field effect transistor MOS; One end of inductance L 1 is connected with the EP pin of integrated chip AL, its other end is connected with the OUT2 pin of integrated chip AL after electric capacity C1; The source electrode of field effect transistor MOS is connected with the OUT2 pin of integrated chip AL after resistance R6, it drains and be then connected with the input end of relay K, and the mouth of relay K is then connected with automotive engine switch.
Described diode group is made up of diode D1 and diode D1, and diode D1 is extremely all connected with the point of connection of resistance R2 with the collecting electrode of aerotron VT2 with the N of diode D2; Diode D1 is then connected with the two ends of automobile lamp switch J respectively with the P pole of diode D2.
For guaranteeing result of use, described photo resistor RL is MG44-03 plastic resin-encapsulated photo resistor, and described integrated chip AL is voltage-dropping type LED drive chip.
The utility model comparatively prior art is compared, and has the following advantages and beneficial effect:
(1) the utility model integral structure is comparatively simple, and it makes and very easy to use.
(2) the utility model can driver forget turn off automobile lamp time automatically cutting off power source, thus effectively can stop the depleted situation of Vehicular accumulator cell and occur, farthest extend the service life of automotive bulb and storage battery.
(3) time that the utility model automatically shuts down automobile lamp power supply can adjust according to actual conditions, with the demand of satisfied different occasion.
(4) the utility model adopts voltage-dropping type LED drive chip to be used as control core, it farthest can reduce VPWR Vehicle Power supply voltage and to suddenly change the pulse shock brought to other electronic components, thus can extend the service life of automobile lamp and other electronic devices and components.
Accompanying drawing explanation
Fig. 1 is integral structure schematic diagram of the present utility model.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment
As shown in Figure 1; the utility model includes integrated chip AL; control circuit; the time meter be connected with the OUT1 pin of integrated chip AL; the photo resistor RL be connected with control circuit, the overvoltage crowbar be connected with integrated chip AL, the relay K be connected with overvoltage crowbar; be serially connected in the diode group between control circuit and automobile lamp switch J, and be serially connected in the beam excitation formula logic amplifying circuit between integrated chip AL and control circuit.
Wherein, relay K has input end and mouth, and during connection, the input end of this relay K is connected with overvoltage crowbar, and its mouth is then connected with automotive engine switch.For guaranteeing automatic circuit break function, the normally closed contact K1 of this relay K must be serially connected on automobile lamp electric power loop.
Integrated chip AL is control chip of the present utility model, and the preferential voltage-dropping type LED drive chip that adopts realizes.In order to ensure real-world operation effect, the integrated chip AL of the present embodiment adopts AL8807A type Buck-type switched-mode LED driver integrated circuit to realize.The integrated chip AL input voltage range of this model is 6 ~ 30V, and switching frequency is 1MHZ, and its drive efficiency is up to more than 96%.
Time meter is timer device of the present utility model, and user can regulate arbitrarily it to send the time length of control signal, as 30s, 60s, 120s etc. according to actual conditions.Once arrive regulation time, this time meter just can send signal to integrated chip AL, and integrated chip AL just can cut off the power supply of car light by control circuit, and then realizes power down function.
Control circuit includes aerotron VT1, aerotron VT2, resistance R1, resistance R2, resistance R3, resistance R4 and light-emitting diode D3.Wherein, the resistance of resistance R1 is 70K Ω, and its one end is connected with the base stage of aerotron VT1, and its other end is external automobile motor switch then; The resistance of resistance R2 is 1 K Ω, and its one end is connected with the collecting electrode of aerotron VT1, and its other end is connected with automobile lamp switch J through diode group; The resistance of resistance R3 is 100 Ω, and its one end is connected with the emitter of aerotron VT1, the other end is connected with the emitter of aerotron VT2 after resistance R4 through light-emitting diode D3 in turn.
The base stage of aerotron VT2 is connected with the collecting electrode of aerotron VT1, and the collecting electrode of aerotron VT2 is then connected with diode group, and for guaranteeing result of use, the resistance of this resistance R4 is 2 K Ω.
Photo resistor RL is an input control element of the present utility model, and it preferentially adopts MG44-03 plastic resin-encapsulated photo resistor to realize.During connection, photo resistor RL is serially connected between the base stage of aerotron VT1 and the point of connection of resistance R3 and light-emitting diode D3.
Described beam excitation formula logic amplifying circuit is primarily of power amplifier P2, NAND gate IC1, NAND gate IC2, NAND gate IC3, negative pole is connected with the electrode input end of power amplifier P2, the polar capacitor C2 of positive pole ground connection after optical diode D4, one end is connected with the positive pole of polar capacitor C2, the resistance R11 of other end ground connection after diode D5, positive pole is connected with the point of connection of diode D5 with resistance R11, the polar capacitor C4 of negative earth, one end is connected with the negative input of NAND gate IC1, the resistance R7 that the other end is connected with the electrode input end of power amplifier P2, be serially connected in the resistance R8 between the negative input of power amplifier P2 and mouth, one end is connected with the mouth of NAND gate IC1, the resistance R9 that the other end is connected with the negative input of NAND gate IC3, positive pole is connected with the mouth of NAND gate IC2, the electric capacity C3 that negative pole is connected with the negative input of NAND gate IC3, and one end is connected with the positive pole of polar capacitor C4, the resistance R10 that the other end is connected with the negative input of NAND gate IC2 forms.
Meanwhile, the electrode input end of described NAND gate IC1 is connected with the negative input of power amplifier P2, and its mouth is connected with the electrode input end of NAND gate IC2; The electrode input end of NAND gate IC3 is connected with the mouth of power amplifier P2, and its mouth is then connected with the SW pin of integrated chip AL; The positive pole of described polar capacitor C2 is then connected with the emitter of aerotron VT2.
Overvoltage crowbar is the protective circuit preventing automotive voltage from producing instantaneous high pressure because of sudden change, and it comprises power amplifier P1, resistance R5, resistance R6, field effect transistor MOS, inductance L 1 and electric capacity C1.Wherein, the positive pole of power amplifier P1 is connected with the CTRL pin of integrated chip AL, and its negative pole is connected with the mouth of NAND gate IC3 after resistance R5, and its mouth is then connected with the grid of field effect transistor MOS.One end of inductance L 1 is connected with the EP pin of integrated chip AL, its other end is connected with the OUT2 pin of integrated chip AL after electric capacity C1; The source electrode of field effect transistor MOS is connected with the OUT2 pin of integrated chip AL after resistance R6, it drains and be then connected with the input end of relay K.
Diode group is made up of diode D1 and diode D1, and diode D1 is extremely all connected with the point of connection of resistance R2 with the collecting electrode of aerotron VT2 with the N of diode D2; Diode D1 is then connected with the two ends of automobile lamp switch J respectively with the P pole of diode D2.
As mentioned above, just the utility model can well be realized.
Claims (6)
1. a beam excitation formula automobile lamp intelligence circuit breaking protective system, primarily of integrated chip AL, control circuit, the time meter be connected with the OUT1 pin of integrated chip AL, the photo resistor RL be connected with control circuit, the overvoltage crowbar be connected with the CTRL pin of integrated chip AL, the relay K be connected with overvoltage crowbar, and the diode group be serially connected between control circuit and automobile lamp switch J forms, it is characterized in that, between integrated chip AL and control circuit, be also serially connected with beam excitation formula logic amplifying circuit, this beam excitation formula logic amplifying circuit is primarily of power amplifier P2, NAND gate IC1, NAND gate IC2, NAND gate IC3, negative pole is connected with the electrode input end of power amplifier P2, the polar capacitor C2 of positive pole ground connection after optical diode D4, one end is connected with the positive pole of polar capacitor C2, the resistance R11 of other end ground connection after diode D5, positive pole is connected with the point of connection of diode D5 with resistance R11, the polar capacitor C4 of negative earth, one end is connected with the negative input of NAND gate IC1, the resistance R7 that the other end is connected with the electrode input end of power amplifier P2, be serially connected in the resistance R8 between the negative input of power amplifier P2 and mouth, one end is connected with the mouth of NAND gate IC1, the resistance R9 that the other end is connected with the negative input of NAND gate IC3, positive pole is connected with the mouth of NAND gate IC2, the electric capacity C3 that negative pole is connected with the negative input of NAND gate IC3, and one end is connected with the positive pole of polar capacitor C4, the resistance R10 that the other end is connected with the negative input of NAND gate IC2 forms, the electrode input end of described NAND gate IC1 is connected with the negative input of power amplifier P2, and its mouth is connected with the electrode input end of NAND gate IC2, the electrode input end of NAND gate IC3 is connected with the mouth of power amplifier P2, and its mouth is then connected with the SW pin of integrated chip AL, the positive pole of described polar capacitor C2 is connected with control circuit, and the normally closed contact K1 of described relay K is then serially connected on automobile lamp electric power loop.
2. a kind of beam excitation formula automobile lamp intelligence circuit breaking protective system according to claim 1, it is characterized in that, described control circuit comprises: aerotron VT1, aerotron VT2, one end is connected with the base stage of aerotron VT1, the resistance R1 of other end external automobile motor switch, one end is connected with the collecting electrode of aerotron VT1, the resistance R2 that the other end is connected with automobile lamp switch J through diode group, one end is connected with the emitter of aerotron VT1, the other end is in turn through resistance R3 that light-emitting diode D3 is connected with the emitter of aerotron VT2 after resistance R4, the base stage of aerotron VT2 is connected with the collecting electrode of aerotron VT1, and the collecting electrode of aerotron VT2 is connected with diode group, and the emitter of aerotron VT2 is then connected with the positive pole of polar capacitor C2, described photo resistor RL is then serially connected between the base stage of aerotron VT1 and the point of connection of resistance R3 and light-emitting diode D3.
3. a kind of beam excitation formula automobile lamp intelligence circuit breaking protective system according to claim 2, it is characterized in that, described overvoltage crowbar comprises power amplifier P1, resistance R5, resistance R6, field effect transistor MOS, inductance L 1 and electric capacity C1; Wherein, the electrode input end of power amplifier P1 is connected with the CTRL pin of integrated chip AL, and its negative input is connected with the negative input of NAND gate IC3 after resistance R5, and its mouth is then connected with the grid of field effect transistor MOS; One end of inductance L 1 is connected with the EP pin of integrated chip AL, its other end is connected with the OUT2 pin of integrated chip AL after electric capacity C1; The source electrode of field effect transistor MOS is connected with the OUT2 pin of integrated chip AL after resistance R6, it drains and be then connected with the input end of relay K, and the mouth of relay K is then connected with automotive engine switch.
4. a kind of beam excitation formula automobile lamp intelligence circuit breaking protective system according to claim 3, it is characterized in that, described diode group is made up of diode D1 and diode D1, and diode D1 is extremely all connected with the point of connection of resistance R2 with the collecting electrode of aerotron VT2 with the N of diode D2; Diode D1 is then connected with the two ends of automobile lamp switch J respectively with the P pole of diode D2.
5. a kind of beam excitation formula automobile lamp intelligence circuit breaking protective system according to claim 4, it is characterized in that, described photo resistor RL is MG44-03 plastic resin-encapsulated photo resistor.
6. a kind of beam excitation formula automobile lamp intelligence circuit breaking protective system according to any one of Claims 1 to 5, it is characterized in that, described integrated chip AL is voltage-dropping type LED drive chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420716899.2U CN204354903U (en) | 2014-11-25 | 2014-11-25 | A kind of beam excitation formula automobile lamp intelligence circuit breaking protective system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420716899.2U CN204354903U (en) | 2014-11-25 | 2014-11-25 | A kind of beam excitation formula automobile lamp intelligence circuit breaking protective system |
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| Publication Number | Publication Date |
|---|---|
| CN204354903U true CN204354903U (en) | 2015-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420716899.2U Expired - Fee Related CN204354903U (en) | 2014-11-25 | 2014-11-25 | A kind of beam excitation formula automobile lamp intelligence circuit breaking protective system |
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| CN (1) | CN204354903U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105578650A (en) * | 2016-01-13 | 2016-05-11 | 矽恩微电子(厦门)有限公司 | LED driving chip for automobile reading lamp |
-
2014
- 2014-11-25 CN CN201420716899.2U patent/CN204354903U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105578650A (en) * | 2016-01-13 | 2016-05-11 | 矽恩微电子(厦门)有限公司 | LED driving chip for automobile reading lamp |
| CN105578650B (en) * | 2016-01-13 | 2017-10-20 | 矽恩微电子(厦门)有限公司 | A kind of automobile reading lamp LED drive chip |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150527 Termination date: 20151125 |