CN202180794U - Vehicle-mounted standby circuit and vehicle-mounted equipment - Google Patents
Vehicle-mounted standby circuit and vehicle-mounted equipment Download PDFInfo
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- CN202180794U CN202180794U CN2011202978839U CN201120297883U CN202180794U CN 202180794 U CN202180794 U CN 202180794U CN 2011202978839 U CN2011202978839 U CN 2011202978839U CN 201120297883 U CN201120297883 U CN 201120297883U CN 202180794 U CN202180794 U CN 202180794U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/92—Energy efficient charging or discharging systems for batteries, ultracapacitors, supercapacitors or double-layer capacitors specially adapted for vehicles
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Abstract
The utility model is suitable for the field of vehicles and provides a vehicle-mounted standby circuit; the vehicle-mounted standby circuit comprises a car power supply, a vehicle-mounted power supply and a first switch, an input end of which is connected with the vehicle-mounted power supply, wherein the standby circuit also comprises a second switch and a second switch control circuit; a first input end of the second switch is connected with the vehicle-mounted power supply and a second input end of the second switch is connected with the car power supply; and a first input end of the second switch control circuit is connected with the vehicle-mounted power supply and a control end of the second switch control circuit is connected with the second switch. Through adding the second switch and a clamping filter circuit in a vehicle-mounted circuit, the vehicle-mounted standby circuit is capable of solving the problem that the vehicle-mounted power supply cannot be completely disconnected from vehicle-mounted equipment after the flameout of a car and solving the problem that the troubles cannot be effectively restored as an MCU (Micro Control Unit) of the vehicle-mounted equipment is in power supply state for a long time, so that the performance and the energy-saving effect of the vehicle-mounted equipment are greatly improved.
Description
Technical field
The utility model belongs to automotive field, relates in particular to a kind of vehicle-mounted stand-by circuit and mobile unit.
Background technology
At present, behind the automobile flameout that is mounted with mobile unit, vehicle power then continues to mobile unit 10MA-50MA to be provided electric current; So not only consumed the electric energy of vehicle power, because vehicle power works long hours, damage probability increases simultaneously; In addition; Because mobile unit MCU is in power supply state for a long time,, need pulls down the machine B+ that breaks and just can reset when software occurring when locked.So there is defective in prior art, need to improve.
Summary of the invention
The object of the present invention is to provide a kind of vehicle-mounted stand-by circuit; Be intended to solve automobile and in flame-out, can not break off vehicle power and mobile unit fully; Lower and the mobile unit MCU of mobile unit performance is in power supply state for a long time, and the problem of efficient recovery can't be arranged when breaking down.
The utility model is achieved in that a kind of vehicle-mounted stand-by circuit, and said vehicle-mounted stand-by circuit comprises automobile power source, vehicle power and input end and vehicle power bonded assembly first switch, and wherein, said stand-by circuit also comprises:
First input end is connected with said vehicle power, second input end and said automobile power source bonded assembly second switch;
First input end is connected with said vehicle power, control end and said second switch bonded assembly second switch control circuit.
Further, said stand-by circuit also comprises: be connected in the clamper filter circuit between vehicle power and the second switch control circuit.
Further, said second switch is a relay.
Further; Said clamper filter circuit comprises: first diode, second diode, second electric capacity; The anode of said second diode is connected with said vehicle power; Negative electrode is connected with said second switch with the negative electrode of said first diode, said second electric capacity respectively, and the anode of said first diode is connected with said second switch control circuit, the other end ground connection of said second electric capacity.
Further, said second switch control circuit comprises aerotron, first resistance; Second resistance, the 3rd resistance, first electric capacity; The collecting electrode of said aerotron is connected with the anode of said second switch with first diode respectively, grounded emitter, and base stage is connected with an end of said second resistance; The other end is through said the 3rd resistance eutral grounding; Said first electric capacity is connected between the said second resistance other end and the ground, and the other end of said second resistance also is connected with an end of said first resistance, and the other end of said first resistance is connected with said second switch with said first switch respectively.
Further, said first electric capacity and second electric capacity are polar capacitor.
Another purpose of the utility model also provides the mobile unit with above-mentioned vehicle-mounted stand-by circuit.
The vehicle-mounted stand-by circuit that the utility model adopts; After both having solved automobile flameout; Can't break off the problem of vehicle power and mobile unit fully; Also solve mobile unit MCU and be in power supply state for a long time, the problem of efficient recovery can't have been arranged when breaking down, made the performance of mobile unit and energy-saving effect be greatly improved.
Description of drawings
Fig. 1 is the functional block diagram of the vehicle-mounted stand-by circuit that provides of the utility model.
Fig. 2 is the circuit diagram of the vehicle-mounted stand-by circuit that provides of the utility model.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model is clearer,, the utility model is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Fig. 1 shows the functional block diagram of the vehicle-mounted stand-by circuit that the utility model provides, and details are as follows:
This vehicle-mounted stand-by circuit comprises: automobile power source 16, vehicle power 11 and input end and vehicle power 11 bonded assemblys first switch 12, and first input end is connected with vehicle power 11, second input end and automobile power source 16 bonded assembly second switches 13; Input end is connected with vehicle power 11, mouth and second switch control circuit 15 bonded assembly clamper filter circuits 14.The control end of second switch control circuit 15 is connected with second switch 13.
Fig. 2 shows the detailed circuit diagram of the vehicle-mounted stand-by circuit that the utility model provides, and details are as follows:
This clamper filter circuit 14 comprises the first diode D1, the second diode D2, second capacitor C 2; Wherein the anode of the second diode D2 is connected with vehicle power 11; Negative electrode respectively with the negative electrode of the first diode D1, an end of second capacitor C 2 connects, the 4th pin of second switch 13 connects; The anode of the first diode D1 is connected with second switch control circuit 15, the other end ground connection of second capacitor C 2.Second switch control circuit 15 comprises aerotron Q1, first resistance R, 1, the second resistance R, 2, the three resistance R, 3, the first capacitor C 1; Aerotron Q1 is the electronic switch of control second switch 13 adhesives, and first resistance R 1, second resistance R 2, the 3rd resistance R 3 are the biasing resistor of aerotron Q1.First capacitor C 1 is a filter capacitor.
Wherein, The collecting electrode of aerotron Q1 is connected with the 5th pin of second switch 13 and the anode of the first diode D1 respectively, grounded emitter, and base stage is connected with an end of second resistance R 2; The other end is through the 3rd resistance R 3 ground connection, and first capacitor C 1 is connected between second resistance R, 2 other ends and the ground.
First capacitor C 1 and second capacitor C 2 adopt polar capacitor in the present embodiment, also can be common electric capacity, do not limit at this.As be polar capacitor, the negative earth of first capacitor C 1 and second capacitor C 2 then.
The other end of second resistance R 2 also is connected with an end of first resistance R 1; The other end of first resistance R 1 is connected with the 2nd pin of first switch 12 and the 6th pin of second switch 13 respectively; The 1st pin of first switch 12 is connected with vehicle power 11, and the 2nd pin of second switch is connected with the B+ that resets, and the 3rd pin is connected with vehicle power 11; The 7th pin is connected with automobile power source ACC, and the 4th pin is connected through coil with the 5th pin;
In the utility model embodiment, first switch 12 is K1, is automobile key-power on switch.Second switch 13 is K2, is the relay of DC-12V control, mainly is used for switching the source switch of vehicle power 11 and mobile unit, and the parameter of relay is: the operating voltage of control coil is DC 9V-16V; Control current is greater than 15A.
The effect of clamper filter circuit 14 is that the top of periodically variable waveform or bottom are remained on a certain definite DC level.When positive pulse appears in automobile starting, the second diode D2 conducting, 2 chargings of second capacitor C, positive pulse provides level and smooth voltage to supply power to the second switch control circuit; When the pulse of automobile starting appearance of negative, the second diode D2 ends, and 2 discharges of second capacitor C provide level and smooth voltage to supply power to the second switch control circuit;
The effect of the first diode D1 be when aerotron Q1 by conducting become by the time; The electric current of relay coil of flowing through will reduce rapidly; Coil is added between the collector and emitter of aerotron Q1 after can producing the stack of very high self-induced emf and power line voltage, and too high voltages can puncture triode Q1, in the parallel connection behind the diode D1; With the self-induced emf clamper of coil in the forward conduction voltage of diode D1; This value silicone tube about 0.7V, the about 0.2V of germanium tube, thus avoid puncturing driving components and parts such as aerotron.The polarity that will note diode during parallel diode can not connect instead, otherwise damage aerotron etc. drive components and parts.
Principle of work is explained as follows:
When extracting automobile key or rotate to the OFF position, promptly first K switch 1 is broken off, and then aerotron Q1 base tension is 0V, is in off condition, and second switch K2 control coil is not worked; Reset B+, automobile power source ACC and vehicle power positive pole is in off-state, not consumed power.When first K switch 1 was in closure state, the base stage of aerotron Q1 became high potential 0.7V with voltage, aerotron Q1 conducting, the 5th pin ground connection of second switch K2 through the biasing resistor that first resistance R 1, second resistance R 2, the 3rd resistance R 3 constitute.Second switch K2 work, the 2nd pin and the 3rd pin are closed, and the 6th pin and the 7th pin are closed, and mobile unit is connected with the mains and is started working.
The vehicle-mounted stand-by circuit that the utility model adopts; After both having solved automobile flameout; Can't break off the problem of vehicle power and mobile unit fully; Also solve mobile unit MCU and be in power supply state for a long time, the problem of efficient recovery can't have been arranged when breaking down, made the performance of mobile unit and energy-saving effect be greatly improved.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (8)
1. a vehicle-mounted stand-by circuit comprises automobile power source, vehicle power and input end and vehicle power bonded assembly first switch, it is characterized in that said stand-by circuit also comprises:
First input end is connected with said vehicle power, second input end and said automobile power source bonded assembly second switch;
First input end is connected with said vehicle power, control end and said second switch bonded assembly second switch control circuit.
2. stand-by circuit as claimed in claim 1 is characterized in that, said stand-by circuit also comprises: be connected in the clamper filter circuit between vehicle power and the second switch control circuit.
3. vehicle-mounted stand-by circuit according to claim 1 is characterized in that, said second switch is a relay.
4. stand-by circuit as claimed in claim 2 is characterized in that, said clamper filter circuit comprises: first diode; Second diode; Second electric capacity, the anode of said second diode is connected with said vehicle power, and negative electrode is connected with said second switch with the negative electrode of said first diode, said second electric capacity respectively; The anode of said first diode is connected with said second switch control circuit, the other end ground connection of said second electric capacity.
5. stand-by circuit as claimed in claim 1 is characterized in that, said second switch control circuit comprises aerotron; First resistance, second resistance, the 3rd resistance; First electric capacity, the collecting electrode of said aerotron are connected grounded emitter with the anode of said second switch with first diode respectively; Base stage is connected with an end of said second resistance, and the other end is through said the 3rd resistance eutral grounding, and said first electric capacity is connected between the said second resistance other end and the ground; The other end of said second resistance also is connected with an end of said first resistance, and the other end of said first resistance is connected with said second switch with said first switch respectively.
6. vehicle-mounted stand-by circuit according to claim 4 is characterized in that, said second electric capacity is polar capacitor.
7. vehicle-mounted stand-by circuit according to claim 5 is characterized in that, said first electric capacity is polar capacitor.
8. mobile unit that comprises the described vehicle-mounted stand-by circuit of each claim of claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202978839U CN202180794U (en) | 2011-08-17 | 2011-08-17 | Vehicle-mounted standby circuit and vehicle-mounted equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202978839U CN202180794U (en) | 2011-08-17 | 2011-08-17 | Vehicle-mounted standby circuit and vehicle-mounted equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202180794U true CN202180794U (en) | 2012-04-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202978839U Expired - Fee Related CN202180794U (en) | 2011-08-17 | 2011-08-17 | Vehicle-mounted standby circuit and vehicle-mounted equipment |
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| Country | Link |
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| CN (1) | CN202180794U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102724608A (en) * | 2012-06-29 | 2012-10-10 | 惠州天缘电子有限公司 | Central processing unit (CPU) power supply circuit of car audio |
| CN103368369A (en) * | 2013-07-17 | 2013-10-23 | 江苏中科天安智联科技有限公司 | Vehicle-mounted terminal restarting circuit |
| CN104375447A (en) * | 2014-11-28 | 2015-02-25 | 无锡市电子仪表工业有限公司 | Low-power-consumption standby circuit of vehicle-mounted player |
| CN106384405A (en) * | 2016-10-27 | 2017-02-08 | 吴江智远信息科技发展有限公司 | Vehicle-mounted diagnosis device based on IPV6 protocol |
-
2011
- 2011-08-17 CN CN2011202978839U patent/CN202180794U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102724608A (en) * | 2012-06-29 | 2012-10-10 | 惠州天缘电子有限公司 | Central processing unit (CPU) power supply circuit of car audio |
| CN103368369A (en) * | 2013-07-17 | 2013-10-23 | 江苏中科天安智联科技有限公司 | Vehicle-mounted terminal restarting circuit |
| CN103368369B (en) * | 2013-07-17 | 2015-09-02 | 江苏中科天安智联科技有限公司 | Car-mounted terminal restarts circuit |
| CN104375447A (en) * | 2014-11-28 | 2015-02-25 | 无锡市电子仪表工业有限公司 | Low-power-consumption standby circuit of vehicle-mounted player |
| CN106384405A (en) * | 2016-10-27 | 2017-02-08 | 吴江智远信息科技发展有限公司 | Vehicle-mounted diagnosis device based on IPV6 protocol |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120404 Termination date: 20170817 |