CN104158247B - A kind of vehicle electronic device power supply self-starting device - Google Patents
A kind of vehicle electronic device power supply self-starting device Download PDFInfo
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- CN104158247B CN104158247B CN201410393467.7A CN201410393467A CN104158247B CN 104158247 B CN104158247 B CN 104158247B CN 201410393467 A CN201410393467 A CN 201410393467A CN 104158247 B CN104158247 B CN 104158247B
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- 238000009434 installation Methods 0.000 description 2
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Abstract
The present invention relates to a kind of vehicle electronic device power supply self-starting device, comprise the vibrating state detection module of connection and supply electric switch module; Described vibrating state detection module, comprises resistance R1, vibration switch S1, electric capacity C1; One end of electric capacity C1 is connected by one end of vibration switch with resistance R1, the other end ground connection of electric capacity C1, and the other end of resistance R1 is connected with power supply VCC; For electric switch module, comprise voltage comparator U1, switching tube Q1; The reverse inter-input-ing ending grounding of described voltage comparator U1, normal phase input end connects one end of electric capacity C1, the grid of the output termination switching tube Q1 of voltage comparator U1; The drain electrode of switching tube Q1 meets power supply VCC, and the source electrode of switching tube Q1 connects load one end, load the other end ground connection. Present configuration is simple, function-stable, and does not rely on internal electrical road, and independent work, further increases the rate of utilization of battery electricity.
Description
Technical field
The present invention relates to vehicle electronic device peripherals test set field; More specifically, it relates to a kind of vehicle electronic device power supply self-starting device.
Background technology
Along with the Economic development of China, the continuous rise of the automobile pollution of China, and supporting vehicle electronic device product also gets more and more, and the power supply of existing vehicle electronic device relies on the battery in car, so for vehicle electronic device, the continuously and effectively power supply of power supply is the prerequisite of guarantee equipment normal operation. Therefore, for the limited capacity of on-vehicle battery, will improving the flying power of battery, one is increase cell container, and two is strengthen battery use management. And under the capacity of battery limited instantly, strengthen the management to battery and be just necessary very much. Especially for rearmounted vehicle electronic device, being transformed by the vehicle circuit after dispatching from the factory is need many workloads. Therefore, for an effective vehicle electronic device of independence, extend the work-ing life of electric device battery as much as possible, reduce the turnover rate of equipment, be conducive to the universal of popularization equipment.
And the management to battery, its essence improves the rate of utilization of battery electricity. Can by reducing automobile and be in not using state time current consumption improve the rate of utilization of battery electricity. The power supply self-starting equipment that prior art provides, it is possible to when being in the state stopped using at automobile, control disconnects the connection of battery and load; When automobile is in running status, the connection of control turn-on battery and load.
The self-starting equipment that prior art provides can improve the rate of utilization of battery electricity, but it depends on the inner circuit of vehicle, and before self-starting device start, is in standby state, and this inherently creates waste of energy.
Summary of the invention
The present invention overcomes the defect described in above-mentioned prior art, it is provided that a kind of simple and reliable, vehicle electronic device energy self-starting module of not relying on internal electrical road and independently working.
For solving the problems of the technologies described above, the technical scheme of the present invention is as follows:
The vehicle electronic device power supply self-starting device of the present invention comprises the vibrating state detection module of connection and supplies electric switch module;
Described vibrating state detection module, comprises resistance R1, vibration switch S1 and electric capacity C1; One end of electric capacity C1 is connected with one end of resistance R1 by vibration switch S1, the other end ground connection of electric capacity C1, and the other end of resistance R1 is connected with power supply VCC;
Described for electric switch module, comprise voltage comparator U1 and switching tube Q1; The anti-phase input termination predeterminated voltage Vb of described voltage comparator U1, normal phase input end connects one end of electric capacity C1, the grid of the output termination switching tube Q1 of voltage comparator U1; The drain electrode of switching tube Q1 meets power supply VCC, and the source electrode of switching tube Q1 connects load one end, load the other end ground connection.
The principle of work of the present invention is as follows:
When vehicle is in launch state, vibration switch S1 periodically break-make, power supply VCC charges to electric capacity C1, when the voltage ratio predeterminated voltage Vb height of electric capacity C1 both sides, voltage comparator U1 comparator output terminal is high level from low transition, making switching tube Q1 conducting, power supply VCC powers to vehicle electronic device; When vehicle is stopped using, vibration switch S1 no longer conducting, owing to electric capacity C1 can leak electricity, when the voltage ratio predeterminated voltage Vb of electric capacity C1 both sides is low, voltage comparator U1 exports lower level, switching tube Q1 not conducting, vehicle electronic device power-off.
Further, vehicle electronic device power supply self-starting device also includes and arranges module for setting the voltage of predeterminated voltage Vb, and described voltage arranges module and comprises voltage stabilizing two pole D1 and slip varistor R6; The negative electrode of Zener diode D1 and slip varistor R6 once terminal stud connect with power supply VCC, another lower terminal stud ground connection of the anode of Zener diode D1 and slip varistor R6; The arbitrary upper terminal stud of slip varistor R6 connects with the inverting input of voltage comparator U1. It is provided with voltage and module is set, user can arrange predeterminated voltage Vb by slip varistor R6, adjustment meets the lasting vibrations time of power-on, only when the voltage at electric capacity C1 two ends arranges, higher than voltage, the predeterminated voltage Vb that module sets, switching tube Q1 just conducting, powers to vehicle electronic device.
Further, also comprising positive regeeration submodule block for electric switch module, described positive regeeration submodule block comprises diode D2, and the anode of diode D2 connects the output terminal of voltage comparator U1, and the negative electrode of diode D2 connects the normal phase input end of voltage comparator U1. When vibration switch S 1 vibrates instability or other reasons causes electric capacity C1 both end voltage to decline, automatically voltage can be drawn high by positive regeeration submodule block, keep its voltage to stablize, ensure the conducting state of switching tube Q1 with this.
In order to prevent switching tube Q1 from misleading, setting up a resistance R2 in vibrating state detection module, resistance R2 is in parallel with electric capacity C1, and the resistance of R2 is greater than R1, and both resistances differ a more than order of magnitude. Being provided with resistance R2, make the electricity shaken in short-term and accumulate closed the door or other external force cause vehicle to occur, can effectively be discharged, thus avoid the superposition gradually of electric capacity electricity, finally mislead switching tube Q1.
Further, voltage arranges and also comprises protection resistance R5 in module, and resistance R5 one end is connected with power supply VCC, and the other end is connected with Zener diode D1 negative electrode.
Further, load two ends are parallel with the power consumption resistance R8 for reducing circuit.
Further, the described output terminal also comprising the termination voltage comparator U1 for reducing circuit power consumption resistance R7, resistance R7 for electric switch module, the other end ground connection.
Further, vehicle electronic device power supply self-starting device also comprises triode Q2, and the collector electrode of triode Q2 is connected with electric capacity C1 one end, the grounded emitter of triode Q2, the base stage of triode Q2 connects the control end of control unit in electronics, and described triode Q2 is NPN type. When mobile unit chip judge vehicle stop over sail or electronics need out of service time, being drawn high by the level of control end, then triode Q2 conducting, the electricity on electric capacity C1 starts release, when the voltage of electric capacity C1 is brought down below predeterminated voltage Vb, it is achieved the function of power-off.
Further, vehicle electronic device power supply self-starting device also comprises switch S 2, and switch S 2 is in parallel with electric capacity C1. It is provided with switch S 2, it is possible to the break-make of Non-follow control power supply.
Further, described vibration switch S1 is spring vibration switch.
Compared with prior art, the useful effect of technical solution of the present invention is: vehicle electronic device energy self-starting device provided by the invention, when automobile is in using state, charged to electric capacity C1 by the break-make of vibration switch S1, when the voltage at electric capacity C1 two ends arranges the predeterminated voltage Vb of module installation higher than voltage, switching tube Q1 conducting, mobile unit is powered; After automobile is stopped using, disconnecting the power supply to mobile unit, this device no longer consumes electric energy simultaneously, thus further increases the utilization ratio of power supply. Being provided with voltage and arrange module, user according to different situations, can independently arrange predeterminated voltage Vb, when mobile unit chip judge vehicle stop over sail or electronics need out of service time, the level of control end can be drawn high, or user can manual closing switch S2, carry out power-off.
Accompanying drawing explanation
Fig. 1 is the schematic circuit diagram of the embodiment of the present invention 1.
Fig. 2 is the schematic circuit diagram of the embodiment of the present invention 2.
Fig. 3 is the schematic circuit diagram of the embodiment of the present invention 3.
Embodiment
Below in conjunction with drawings and Examples, the technical scheme of the present invention is described further.
Embodiment 1
As shown in Figure 1, the vehicle electronic device energy self-starting device of the present embodiment comprises the vibrating state detection module of connection and supplies electric switch module; Vibrating state detection module, comprises resistance R1, vibration switch S1 and electric capacity C1; One end of electric capacity C1 is connected with one end of resistance R1 by vibration switch S1, the other end ground connection of electric capacity C1, and the other end of resistance R1 is connected with power supply VCC; For electric switch module, comprise voltage comparator U1 and switching tube Q1; The anti-phase input termination predeterminated voltage Vb of described voltage comparator U1, normal phase input end connects one end of electric capacity C1, the grid of the output termination switching tube Q1 of voltage comparator U1; The drain electrode of switching tube Q1 meets power supply VCC, and the source electrode of switching tube Q1 connects load one end, load the other end ground connection.
In the present embodiment, the vibration switch S1 in vibrating state detection module selects the spring vibration switch of highly sensitive, and switching tube Q1 selects N-channel MOS to manage.
It is applied on vehicle, during vehicle launch, when vehicle is in vibrating state, vibration switch S1 periodically break-make, power supply VCC charges to electric capacity C1, and when the voltage ratio predeterminated voltage Vb height of electric capacity C1 both sides, voltage comparator U1 comparator output terminal is high level from low transition, making switching tube Q1 conducting, power supply VCC powers to vehicle electronic device; When vehicle is stopped using, vibration switch S1 no longer conducting, owing to electric capacity C1 can leak electricity, when the voltage ratio predeterminated voltage Vb of electric capacity both sides is low, voltage comparator U1 exports lower level, switching tube Q1 not conducting, vehicle electronic device power-off. When vehicle is stopped using, owing to vibration switch S 1 disconnects, then this self-starting device enters " very dead " state.
Embodiment 2
The present embodiment has set up some components and parts in embodiment 1, as shown in Figure 2, in order to better adjust the voltage of voltage comparator U1 negative input end, therefore on the basis of embodiment 1, also add one module is set for setting the voltage of predeterminated voltage Vb, described voltage arranges module and comprises voltage stabilizing two pole D1 and slip varistor R6; The negative electrode of Zener diode D1 and slip varistor R6 once terminal stud connect with power supply VCC, another lower terminal stud ground connection of the anode of Zener diode D1 and slip varistor R6; The arbitrary upper terminal stud of slip varistor R6 connects with the inverting input of voltage comparator U1.
Set up after voltage arranges module, it is possible to by the mobile rheostatic slide plate that slides, predeterminated voltage Vb is set.
When the voltage at electric capacity C1 two ends arranges, higher than voltage, the predeterminated voltage Vb that module sets, switching tube Q1 just conducting, then can arrange predeterminated voltage Vb by slip varistor R6, and adjustment meets the lasting vibrations time of power-on, meets the needs of different user.
In the present embodiment, the time of the power-on of vehicle electronic device power supply self-starting device can also determine according to the parameter of the resistance R1 selected, electric capacity C1.
Circuit equation according to RC circuit is it will be seen that the capacitor charging time in RC circuit is expressed from the next:
As shown from the above formula, when charging voltage one timing, capacitor charging time in RC circuit is determined by RC constant, namely when setting predeterminated voltage Vb, it is possible to the parameter of adjusting resistance R1, electric capacity C1 sets the power-on time of vehicle electronic device power supply self-starting device. It is equal for assuming that vibration switch S1 is in the time disconnecting and closing two states in a vibrations cycle, under the hypotheses then not leaked electricity at electric capacity C1, reach voltage arrange module setting predeterminated voltage Vb need the time to be the K second, then vehicle at least continues the vibrations 2K second, just can think that vehicle is in launch state. Considering that the electric capacity C1 used in reality can not leak electricity completely, vehicle must shake more than the 2K second, just can make switching tube Q1 conducting.
Embodiment 3
The present embodiment adds some components and parts on the basis of embodiment 1, embodiment 2, strengthen self-starting device, as shown in Figure 3, when there is decline in electric capacity C1 both end voltage, disconnect to prevent switching tube Q1, setting up a diode D2 in electric switch module, the anode of diode D2 connects the output terminal of voltage comparator U1, and the negative electrode of diode D2 connects the normal phase input end of voltage comparator U1.
The model that electric capacity C1 in vibrating state detection module selects electrical leakage quantity few; When vehicle stops, for realizing power-off, therefore set up shutoff module at vehicle electronic device power supply self-starting device, turning off module is adopt triode Q2 to realize, the collector electrode of triode Q2 is connected with electric capacity C1 one end, the grounded emitter of triode Q2, the base stage of triode Q2 connects the control end of control unit in electronics, and triode Q2 is NPN type. When judging that vehicle is out of service or electronics needs out of service, being drawn high by the level of control end, then triode Q2 conducting, the electricity on C1 starts release, and when the voltage of C1 is brought down below predeterminated voltage Vb, switching tube Q1 disconnects, it is achieved the function of power-off.
Meanwhile, turning off module and also include switch S 2, switch S 2 is in parallel with electric capacity C1. It is provided with switch S 2, it is possible to the break-make of Non-follow control power supply.
In order to prevent switching tube Q1 from misleading, setting up a resistance R2 in vibrating state detection module, resistance R2 is in parallel with electric capacity C1, and the resistance of R2 is greater than R1, and both resistances differ a more than order of magnitude. Making the electricity shaken in short-term and accumulate closed the door or other external force cause vehicle to occur, can effectively be discharged, thus avoid electric capacity C1 electricity superposition gradually, finally mislead switching tube Q1.
Voltage arranges and is provided with protection resistance R5 in module, and resistance R5 one end is connected with power supply VCC, and the other end is connected with Zener diode D1 negative electrode. A load two ends resistance R8 in parallel; Resistance R7 is also comprised, the output terminal of a termination voltage comparator U1 of resistance R7, the other end ground connection for electric switch module. The effect of resistance R7, R8 reduces power consumption.
The vehicle electronic device energy self-starting device provided by the present embodiment, when automobile is in using state, charged to electric capacity C1 by the break-make of vibration switch S1, when the voltage at electric capacity C1 two ends arranges the predeterminated voltage Vb of module installation higher than voltage, switching tube Q1 conducting, mobile unit is powered; After automobile is stopped using, disconnecting the power supply to mobile unit, this device no longer consumes electric energy simultaneously, thus further increases the utilization ratio of power supply. Being provided with voltage and arrange module, user according to different situations, can independently arrange predeterminated voltage Vb, when mobile unit chip judge vehicle stop over sail or electronics need out of service time, the level of control end can be drawn high, or user can manual closing switch S2, carry out power-off.
Present configuration is simple, function-stable, and does not rely on internal electrical road, and independent work, further increases the rate of utilization of battery electricity.
Claims (10)
1. a vehicle electronic device power supply self-starting device, it is characterised in that: comprise the vibrating state detection module of connection and supply electric switch module; Described vibrating state detection module, comprises resistance R1, vibration switch S1 and electric capacity C1; The first end of electric capacity C1 is connected with one end of resistance R1 by vibration switch S1, the 2nd end ground connection of electric capacity C1, and the other end of resistance R1 is connected with power supply VCC; Described for electric switch module, comprise voltage comparator U1 and switching tube Q1; The anti-phase input termination predeterminated voltage Vb of described voltage comparator U1, normal phase input end connects the first end of electric capacity C1, the grid of the output termination switching tube Q1 of voltage comparator U1; The drain electrode of switching tube Q1 meets power supply VCC, and the source electrode of switching tube Q1 connects load one end, load the other end ground connection.
2. vehicle electronic device power supply self-starting device according to claim 1, it is characterized in that: vehicle electronic device power supply self-starting device also includes and arranges module for setting the voltage of predeterminated voltage Vb, described voltage arranges module and comprises Zener diode D1 and slip varistor R6; The negative electrode of Zener diode D1 and slip varistor R6 once terminal stud connect with power supply VCC, another lower terminal stud ground connection of the anode of Zener diode D1 and slip varistor R6; The arbitrary upper terminal stud of slip varistor R6 connects with the inverting input of voltage comparator U1.
3. vehicle electronic device power supply self-starting device according to claim 2, it is characterized in that: described confession electric switch module also comprises positive regeeration submodule block, described positive regeeration submodule block comprises diode D2, the anode of diode D2 connects the output terminal of voltage comparator U1, and the negative electrode of diode D2 connects the normal phase input end of voltage comparator U1.
4. vehicle electronic device power supply self-starting device according to claim 3, it is characterised in that: described vibrating state detection module also comprises resistance R2, and resistance R2 is in parallel with electric capacity C1, and the resistance of R2 is greater than R1, and both resistances differ a more than order of magnitude.
5. vehicle electronic device power supply self-starting device according to claim 3, it is characterised in that: described voltage arranges and also comprises resistance R5 in module, and resistance R5 one end is connected with power supply VCC, and the other end is connected with Zener diode D1 negative electrode.
6. vehicle electronic device power supply self-starting device according to claim 3, it is characterised in that: a described load two ends resistance R8 in parallel.
7. vehicle electronic device power supply self-starting device according to claim 3, it is characterised in that: described confession electric switch module also comprises resistance R7, the output terminal of a termination voltage comparator U1 of resistance R7, the other end ground connection.
8. vehicle electronic device power supply self-starting device according to the arbitrary item of claim 1 to 7, it is characterized in that: vehicle electronic device power supply self-starting device also comprises triode Q2, the collector electrode of triode Q2 is connected with the first end of electric capacity C1, the grounded emitter of triode Q2, the base stage of triode Q2 connects the control end of control unit in electronics, and described triode Q2 is NPN type.
9. vehicle electronic device power supply self-starting device according to claim 8, it is characterised in that: vehicle electronic device power supply self-starting device also comprises switch S 2, and switch S 2 is in parallel with electric capacity C1.
10. vehicle electronic device power supply self-starting device according to claim 9, it is characterised in that: described vibration switch S1 is spring vibration switch.
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| CN201410393467.7A CN104158247B (en) | 2014-08-11 | 2014-08-11 | A kind of vehicle electronic device power supply self-starting device |
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| CN201410393467.7A CN104158247B (en) | 2014-08-11 | 2014-08-11 | A kind of vehicle electronic device power supply self-starting device |
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| CN104158247A CN104158247A (en) | 2014-11-19 |
| CN104158247B true CN104158247B (en) | 2016-06-01 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104802653B (en) * | 2015-03-03 | 2017-03-29 | 奇瑞汽车股份有限公司 | Voltage-stabilization control system |
| CN105928665A (en) * | 2016-05-03 | 2016-09-07 | 华北电力大学 | Automobile trunk water leakage detection apparatus with vibration self-startup function |
| CN107546786B (en) * | 2016-06-27 | 2023-12-29 | 深圳市华思旭科技有限公司 | Power supply device and power supply method |
| CN106985771A (en) * | 2017-04-21 | 2017-07-28 | 华南理工大学 | A kind of onboard diagnostic device dormancy start-up circuit |
| CN111891055A (en) * | 2020-08-27 | 2020-11-06 | 深圳市锐创新科技有限公司 | Battery control device and method and vehicle |
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| EP0525342A2 (en) * | 1991-07-04 | 1993-02-03 | Secoh Giken Co., Ltd. | Control system for the load energization by a battery |
| CN1564762A (en) * | 2002-04-12 | 2005-01-12 | 爱信艾达株式会社 | Power supply management system for vehicle mounted apparatus |
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| CN204068352U (en) * | 2014-08-11 | 2014-12-31 | 中山大学 | A kind of vehicle electronic device power supply self-starting device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001050145A (en) * | 1999-08-06 | 2001-02-23 | Honda Motor Co Ltd | Engine starting device |
| JP5534206B2 (en) * | 2010-08-30 | 2014-06-25 | 三菱自動車工業株式会社 | Vehicle power supply |
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- 2014-08-11 CN CN201410393467.7A patent/CN104158247B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0525342A2 (en) * | 1991-07-04 | 1993-02-03 | Secoh Giken Co., Ltd. | Control system for the load energization by a battery |
| CN1564762A (en) * | 2002-04-12 | 2005-01-12 | 爱信艾达株式会社 | Power supply management system for vehicle mounted apparatus |
| CN101419452A (en) * | 2008-11-27 | 2009-04-29 | 浙江大学 | Vehicle air conditioner self-starting system |
| CN204068352U (en) * | 2014-08-11 | 2014-12-31 | 中山大学 | A kind of vehicle electronic device power supply self-starting device |
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