CN108427054A - Vehicle mounted electrical apparatus detection device and detection operating system - Google Patents
Vehicle mounted electrical apparatus detection device and detection operating system Download PDFInfo
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- CN108427054A CN108427054A CN201810594816.XA CN201810594816A CN108427054A CN 108427054 A CN108427054 A CN 108427054A CN 201810594816 A CN201810594816 A CN 201810594816A CN 108427054 A CN108427054 A CN 108427054A
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- 238000001514 detection method Methods 0.000 title claims abstract description 66
- 230000005693 optoelectronics Effects 0.000 claims description 83
- 230000001052 transient effect Effects 0.000 claims description 8
- 230000005622 photoelectricity Effects 0.000 claims description 6
- 239000003990 capacitor Substances 0.000 claims description 5
- 230000001629 suppression Effects 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 238000004088 simulation Methods 0.000 description 3
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/006—Testing of electric installations on transport means on road vehicles, e.g. automobiles or trucks
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Abstract
Vehicle mounted electrical apparatus detection device provided by the invention and detection operating system, are related to electronic circuit technology field.Wherein, the vehicle mounted electrical apparatus detection device includes circuit board and is integrated in the detection circuit of the circuit board, and the detection circuit includes：The input terminal of power supply unit, the power supply unit is connect with external power supply, to obtain electric energy and the output voltage values of external power supply output as the electric energy of 24V；Drive signal analogue unit, the feeder ear of the drive signal analogue unit and the output end of said supply unit connect, to obtain the electric energy of said supply unit output, and based on the electric energy with output drive signal.The drive signal analogue unit includes multiple output ends, and each output end can be connected with the driving end of corresponding vehicle mounted electrical apparatus respectively, with respectively to corresponding vehicle mounted electrical apparatus output drive signal.By above-mentioned setting, may be implemented quickly and conveniently to be detected vehicle mounted electrical apparatus.
Description
Technical field
The present invention relates to electronic circuit technology fields, are transported in particular to a kind of vehicle mounted electrical apparatus detection device and detection
Row system.
Background technology
Electric vehicle as it is a kind of green, environmental protection the vehicles, gradually become daily life can not or
One of scarce tool.Wherein, the type of vehicle mounted electrical apparatus is generally more in electric vehicle, also, the electrical characteristic of each vehicle mounted electrical apparatus
There is also larger differences.
Inventor it has been investigated that, vehicle mounted electrical apparatus whether can normal use directly affect driving safety, still,
The detection of vehicle mounted electrical apparatus can only rely on the maintenance personnel of profession to be detected by corresponding detection instrument in the prior art.Cause
And providing a kind of can quickly and conveniently be a problem to be solved the equipment that vehicle mounted electrical apparatus is detected.
Invention content
In view of this, the purpose of the present invention is to provide a kind of vehicle mounted electrical apparatus detection devices and detection operating system, with reality
Now quickly and conveniently vehicle mounted electrical apparatus is detected, and then ensures the safety of driving.
To achieve the above object, the embodiment of the present invention adopts the following technical scheme that：
A kind of vehicle mounted electrical apparatus detection device, including circuit board and the detection circuit for being integrated in the circuit board, the detection electricity
Road includes：
The input terminal of power supply unit, the power supply unit is connect with external power supply, to obtain the electric energy of external power supply output simultaneously
Output voltage values are the electric energy of 24V；
Drive signal analogue unit, the feeder ear of the drive signal analogue unit and the output end of said supply unit connect
It connects, to obtain the electric energy of said supply unit output, and based on the electric energy with output drive signal；
Wherein, the drive signal analogue unit includes multiple output ends, each output end can respectively with it is corresponding vehicle-mounted
The driving end of electric appliance connects, with respectively to corresponding vehicle mounted electrical apparatus output drive signal.
In the embodiment of the present invention preferably selects, in above-mentioned vehicle mounted electrical apparatus detection device, said supply unit includes：
The input terminal of first button switch, first button switch is connect with external power supply；
First optoelectronic switch, the first input end of first optoelectronic switch and the output end of first button switch connect
It connects, the first output end is grounded, the second input terminal is connect with external power supply；
First triode, the base stage of first triode connect with the second output terminal of first optoelectronic switch, emit
Pole is grounded；
First relay, including first coil and the first contact, one end of the first coil and first triode
Collector connection, the other end and external power supply connect, one end of first contact connect with external power supply, other end conduct
The output end of said supply unit；
Wherein, after first button switch is closed, external power supply drives the second input terminal of first optoelectronic switch
It is connected with second output terminal, and first triode ON is driven by second input terminal and second output terminal, so that institute
It states first coil and obtains the first contact actuation described in electric control, so that external power supply believes the driving of connection by first contact
The power supply of number analogue unit.
In the embodiment of the present invention preferably selects, in above-mentioned vehicle mounted electrical apparatus detection device, said supply unit is also wrapped
It includes：
Self- recoverage fuse, one end which is not connected with external power supply with first contact connect
It connects, output end of the other end as said supply unit；
Resistance device, including first resistor, second resistance and thermistor, the base stage of first triode with it is described
The second output terminal of first optoelectronic switch is connected by the first resistor, one end of the first coil and the one or three pole
The collector of pipe is connected by the second resistance, and one end of first contact is connected with external power supply by the thermistor
It connects；
Capacitor element, including the first capacitance, the second capacitance, third capacitance and the 4th capacitance, first capacitance and institute
It states second resistance to be connected in parallel, second capacitance is connected in parallel with first contact, the third capacitance and the described 4th
Capacitance is connected in parallel one end connection, the other end ground connection that rear one end is connect with first contact and the self- recoverage fuse；
Diode component, including the first diode, the second diode, third diode, the 4th diode and transient state suppression
Diode processed, one end that the anode of first diode is connect with the first coil and first triode connect, are cloudy
The connection of one end that pole is connect with the first coil and external power supply, the cathode of second diode and the thermistor and
One end connection, the plus earth of the first contact connection, the anode of the third diode connect with first contact, are cloudy
Pole is connect with the self- recoverage fuse so that first contact and the self- recoverage fuse pass through the third diode
Connection, the cathode of the 4th diode connect with the anode of the third diode, plus earth, two poles of the transient state inhibition
The cathode of pipe connect with the cathode of the third diode, plus earth.
In the embodiment of the present invention preferably selects, in above-mentioned vehicle mounted electrical apparatus detection device, the drive signal simulation
Unit includes steering indicating light drive module, which includes：
First toggle switch, the input terminal of first toggle switch and the output end of said supply unit connect；
Second optoelectronic switch, the first output end of the first input end of second optoelectronic switch and first toggle switch
Connection, the first output end ground connection, the second input terminal are connect with external power supply；
Second triode, the base stage of second triode connect with the second output terminal of second optoelectronic switch, emit
Pole is grounded；
Resistance device, including 3rd resistor and the 4th resistance, the base stage of second triode are opened with second photoelectricity
The second output terminal of pass is connected by the 3rd resistor, one end of the 4th resistance and the second of second optoelectronic switch
Output end connection, other end ground connection；
Power supply chip, including the first power supply chip, second source chip, third power supply chip and the 4th power supply chip,
The input terminal of first power supply chip is connect with the collector of second triode, power end and external power supply connect, are defeated
Outlet can be connect with left back steering indicating light, and the input terminal of the second source chip and the collector of second triode connect
Connect, power end and external power supply connection, output end can connect with right rear directional, the input terminal of the third power supply chip and
Collector connection, power end and the external power supply of second triode connect, output end can be connect with turn lamp, left front, institute
The input terminal for stating the 4th power supply chip connect with the collector of second triode, the connection of power end and external power supply, exports
End can be connect with right front turn lamp.
In the embodiment of the present invention preferably selects, in above-mentioned vehicle mounted electrical apparatus detection device, first toggle switch
For 3 gear switch, and further include second output terminal, the drive signal analogue unit further includes position lamp drive module, the position
Lamp drive module includes：
Third optoelectronic switch, the second output terminal of the first input end of the third optoelectronic switch and first toggle switch
Connection, the first output end ground connection, the second input terminal are connect with external power supply；
Third transistor, the base stage of the third transistor connect with the second output terminal of the third optoelectronic switch, emit
Pole is grounded；
Resistance device, including the 5th resistance and the 6th resistance, the base stage of the third transistor are opened with the third photoelectricity
The second output terminal of pass is connected by the 5th resistance, one end of the 6th resistance and the second of the third optoelectronic switch
Output end connection, other end ground connection；
Power supply chip, including the 5th power supply chip and the 6th power supply chip, the input terminal of the 5th power supply chip and institute
Stating collector connection, power end and external power supply connection, the output end of third transistor can connect with front left position lamp, described
The input terminal of 6th power supply chip is connect with the collector of the third transistor, power end and external power supply connect, output end
It can be connect with front right position lamp.
In the embodiment of the present invention preferably selects, in above-mentioned vehicle mounted electrical apparatus detection device, the drive signal simulation
Unit further includes ACC power modules, which includes：
Second toggle switch, the input terminal of second toggle switch and the output end of said supply unit connect；
4th optoelectronic switch, the first output end of the first input end of the 4th optoelectronic switch and second toggle switch
Connection, the output end connection of the first output end ground connection, the second input terminal and said supply unit；
4th triode, the base stage of the 4th triode connect with the second output terminal of the 4th optoelectronic switch, emit
Pole is grounded；
Second relay, including the second coil and the second contact, one end of second coil and the 4th triode
Collector connection, the other end and said supply unit output end connect, one end and the external power supply of second contact connect
It connects, output end of the other end as ACC power modules；
Resistance device, including the 7th resistance, the 8th resistance and the 9th resistance, the input terminal of second toggle switch with
The output end of said supply unit is connected by the 7th resistance, and base stage and the 4th photoelectricity of the 4th triode are opened
The second output terminal of pass is connected by the 8th resistance, one end of the 9th resistance and the second of the 4th optoelectronic switch
Output end connection, other end ground connection；
5th diode, the anode of the 5th diode connect with the collector of second coil and the 4th triode
One end connection that the one end connect connects, cathode is connect with the output end of second coil and said supply unit；
5th capacitance, the 5th capacitance are connected in parallel with second contact.
In the embodiment of the present invention preferably selects, in above-mentioned vehicle mounted electrical apparatus detection device, second toggle switch
For 3 gear switch, and further include second output terminal, the drive signal analogue unit further includes ON grades of power modules, the ON grades of electricity
Source module includes：
5th optoelectronic switch, the second output terminal of the first input end of the 5th optoelectronic switch and second toggle switch
Connection, the output end connection of the first output end ground connection, the second input terminal and said supply unit；
5th triode, the base stage of the 5th triode connect with the second output terminal of the 5th optoelectronic switch, emit
Pole is grounded；
Third relay, including tertiary coil and third contact, one end of the tertiary coil and the 5th triode
Collector connection, the other end and said supply unit output end connect, one end and the external power supply of the third contact connect
It connects, output end of the other end as ON grades of power modules；
Resistance device, including the tenth resistance and eleventh resistor, base stage and the 5th light of the 5th triode
The second output terminal of electric switch is connected by the tenth resistance, one end of the eleventh resistor and the 5th optoelectronic switch
Second output terminal connection, the other end ground connection；
6th diode, anode and the collector of the tertiary coil and the 5th triode of the 6th diode connect
One end connection that the one end connect connects, cathode is connect with the output end of the tertiary coil and said supply unit；
6th capacitance, the 6th capacitance are connected in parallel with the third contact.
In the embodiment of the present invention preferably selects, in above-mentioned vehicle mounted electrical apparatus detection device, the drive signal simulation
Unit further includes：
Wiper drive module, the feeder ear of the wiper drive module and the output end of said supply unit connect, are defeated
Outlet can be connect with wiper, with to the wiper output drive signal；
Gear controller drive module, the feeder ear of the gear controller drive module and the output end of said supply unit
Connection, output end can be connect with gear controller, with to the gear controller output drive signal；
High beam drive module, the feeder ear of the high beam drive module and the output end of said supply unit connect, are defeated
Outlet can be connect with high beam, with to the high beam output drive signal；
Dipped headlight drive module, the feeder ear of the dipped headlight drive module and the output end of said supply unit connect, are defeated
Outlet can be connect with dipped headlight, with to the dipped headlight output drive signal；
Front fog lamp drive module, the feeder ear of the front fog lamp drive module and the output end of said supply unit connect, are defeated
Outlet can be connect with front fog lamp, with to the front fog lamp output drive signal；
Rear Fog Lamp drive module, the feeder ear of the Rear Fog Lamp drive module and the output end of said supply unit connect, are defeated
Outlet can be connect with Rear Fog Lamp, with to the Rear Fog Lamp output drive signal；
Strip light drive module, the feeder ear of the strip light drive module and the output end of said supply unit connect, are defeated
Outlet can be connect with strip light, with to the strip light output drive signal；
Driver's lamp drive module, the feeder ear of driver's lamp drive module and the output end of said supply unit connect, are defeated
Outlet can be connect with driver's lamp, with to driver's lamp output drive signal；
Fan-driving module, the feeder ear and the output end connection of said supply unit, output end of the fan-driving module
It can be connect with fan, with to the fan output drive signal；
Loudspeaker drive module, the feeder ear and the output end connection of said supply unit, output end of the loudspeaker drive module
It can be connect with loudspeaker, with to the loudspeaker output drive signal.
The embodiment of the present invention additionally provides a kind of detection operating system, including vehicle mounted electrical apparatus and vehicle mounted electrical apparatus detection device,
The vehicle mounted electrical apparatus detection device includes circuit board and is integrated in the detection circuit of the circuit board, and the detection circuit includes：
The input terminal of power supply unit, the power supply unit is connect with external power supply, to obtain the electric energy of external power supply output simultaneously
Output voltage values are the electric energy of 24V；
Drive signal analogue unit, the feeder ear of the drive signal analogue unit and the output end of said supply unit connect
It connects, to obtain the electric energy of said supply unit output, and based on the electric energy with output drive signal；
Wherein, the drive signal analogue unit includes multiple output ends, each output end can respectively with it is corresponding vehicle-mounted
The driving end of electric appliance connects, with respectively to corresponding vehicle mounted electrical apparatus output drive signal.
In the embodiment of the present invention preferably selects, in above-mentioned detection operating system, said supply unit includes：
The input terminal of first button switch, first button switch is connect with external power supply；
First optoelectronic switch, the first input end of first optoelectronic switch and the output end of first button switch connect
It connects, the first output end is grounded, the second input terminal is connect with external power supply；
First triode, the base stage of first triode connect with the second output terminal of first optoelectronic switch, emit
Pole is grounded；
First relay, including first coil and the first contact, one end of the first coil and first triode
Collector connection, the other end and external power supply connect, one end of first contact connect with external power supply, other end conduct
The output end of said supply unit；
Wherein, after first button switch is closed, external power supply drives the second input terminal of first optoelectronic switch
It is connected with second output terminal, and first triode ON is driven by second input terminal and second output terminal, so that institute
It states first coil and obtains the first contact actuation described in electric control, so that external power supply believes the driving of connection by first contact
The power supply of number analogue unit.
Vehicle mounted electrical apparatus detection device provided by the invention and detection operating system, are simulated by power supply unit and drive signal
Unit is equipped with, to export different drive signals by different output ends, to be detected to each vehicle mounted electrical apparatus, and
It is based on whether corresponding drive signal can work normally by obtaining vehicle mounted electrical apparatus, to judge the vehicle mounted electrical apparatus with the presence or absence of event
Barrier is quickly and conveniently detected vehicle mounted electrical apparatus to realize, and then ensures the safety of driving.Also, in vehicle mounted electrical apparatus
Enter factory to be installed on before automobile, each vehicle mounted electrical apparatus can also be detected by vehicle mounted electrical apparatus detection device, is closed with filtering out
The product of lattice, or after the completion of vehicle mounted electrical apparatus produces, vehicle mounted electrical apparatus can be tested to obtain corresponding operation data,
The reliability and service life of corresponding vehicle mounted electrical apparatus are obtained with analysis, greatly improves the practical valence of vehicle mounted electrical apparatus detection device
Value.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Description of the drawings
Fig. 1 is the structure diagram of detection operating system provided in an embodiment of the present invention.
Fig. 2 is the structure diagram of vehicle mounted electrical apparatus detection device provided in an embodiment of the present invention.
Fig. 3 is the circuit diagram of power supply unit provided in an embodiment of the present invention.
Fig. 4 is the circuit diagram of steering indicating light drive module and position lamp drive module provided in an embodiment of the present invention.
Fig. 5 is the circuit diagram of ACC power modules and ON grades of power modules provided in an embodiment of the present invention.
Icon：10- detects operating system；100- vehicle mounted electrical apparatus detection devices；110- power supply units；The first buttons of S11- are opened
It closes；The first optoelectronic switches of U11-；The first triodes of Q1-；L1- first coils；The first contacts of K1-；F- self- recoverage fuses；R1-
First resistor；R2- second resistances；R3- thermistors；The first capacitances of C1-；The second capacitances of C2-；C3- third capacitances；C4- the 4th
Capacitance；The first diodes of D1-；The second diodes of D2-；D3- third diodes；The 4th diodes of D4-；D0- transient states inhibit two poles
Pipe；130- drive signal analogue units；The first toggle switch of S21-；The second optoelectronic switches of U12-；The second triodes of Q2-；R3-
Three resistance；The 4th resistance of R4-；The first power supply chips of U21-；U22- second source chips；U23- third power supply chips；U24-
Four power supply chips；U13- third optoelectronic switches；Q3- third transistors；The 5th resistance of R5-；The 6th resistance of R6-；The 5th electricity of U25-
Source chip；The 6th power supply chips of U26-；The second toggle switch of S22-；The 4th optoelectronic switches of U14-；The 4th triodes of Q4-；L2-
Two coil；The second contacts of K2-；The 5th diodes of D5-；The 5th capacitances of C5-；The 7th resistance of R7-；The 8th resistance of R8-；R9- the 9th
Resistance；The 5th optoelectronic switches of U15-；The 5th triodes of Q5-；L3- tertiary coils；K3- third contacts；The 6th diodes of D6-；C6-
6th capacitance；The tenth resistance of R10-；R11- eleventh resistors；200- vehicle mounted electrical apparatus.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiments of the present invention, this field is common
The every other embodiment that technical staff is obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the foregoing description of the present invention, it should be noted that the orientation or position of the instructions such as term " one end ", " other end "
Set relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when the orientation or position usually put
Relationship is set, is merely for convenience of description of the present invention and simplification of the description, device is not indicated or implied the indicated or element is necessary
With specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term
" first ", " second ", " third ", " the 4th " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
As shown in Figure 1, an embodiment of the present invention provides a kind of detection operating system 10, electric vehicle can be applied to.Wherein,
The detection operating system 10 may include vehicle mounted electrical apparatus detection device 100 and a variety of vehicle mounted electrical apparatus 200.
Further, in the present embodiment, the vehicle mounted electrical apparatus detection device 100 may include multiple output ends, with
Each vehicle mounted electrical apparatus 200 is separately connected, and then realizes the detection respectively to each vehicle mounted electrical apparatus 200.
Optionally, the type of the vehicle mounted electrical apparatus 200 is unrestricted, can be configured according to practical application request, example
Such as, may include, but be not limited to steering indicating light, position lamp, ACC power supplys, ON grades of power supplys, wiper, gear controller, high beam,
The electrical equipments such as dipped headlight, fog lamp, strip light, driver's lamp, fan and loudspeaker.
In conjunction with Fig. 2, the present embodiment also provide it is a kind of can be applied to above-mentioned detection operating system 10 vehicle mounted electrical apparatus detection set
Standby 100.Wherein, the vehicle mounted electrical apparatus detection device 100 may include power supply unit 110 and drive signal analogue unit 130.
Further, in the present embodiment, the input terminal of said supply unit 110 is connect with external power supply, outer to obtain
The electric energy of portion's power supply output and the electric energy that output voltage values are 24V.The feeder ear of the drive signal analogue unit 130 with it is described
The output end of power supply unit 110 connects, and to obtain the electric energy of the output of said supply unit 110, and is driven based on the electric energy with exporting
Dynamic signal.Also, the drive signal analogue unit 130 include multiple output ends, each output end can respectively with corresponding vehicle
The driving end connection for carrying electric appliance 200, with respectively to 200 output drive signal of corresponding vehicle mounted electrical apparatus.
Optionally, the electrical equipment that said supply unit 110 includes is unrestricted, can be carried out according to practical application request
Setting, for example, can be configured according to power demands.In the present embodiment, in conjunction with Fig. 3, said supply unit 110 can wrap
Include the first button switch S11, the first optoelectronic switch U11, the first triode Q1 and the first relay.
Further, in the present embodiment, the input terminal of the first button switch S11 is connect with external power supply.It is described
The first input end of first optoelectronic switch U11 is connect with the output end of the first button switch S11, the first output end is grounded,
Second input terminal is connect with external power supply.The second of the base stage of the first triode Q1 and the first optoelectronic switch U11 is defeated
Outlet connection, emitter ground connection.First relay includes first coil L1 and the first contact K1, the first coil L1's
One end is connect with the collector of the first triode Q1, the other end and external power supply connect, one end of the first contact K1
It is connect with external power supply, output end of the other end as said supply unit 110.
Wherein, after the first button switch S11 is closed, external power supply drives the second of the first optoelectronic switch U11
Input terminal and second output terminal conducting, and drive the first triode Q1 to lead by second input terminal and second output terminal
It is logical, so that the first coil L1 obtains the first contact K1 described in electric control and is attracted, so that external power supply passes through first contact
K1 powers to the vehicle mounted electrical apparatus 200 of connection.That is, after the first button switch S11 closures, external power supply makes described
The light emitting diode of first optoelectronic switch U11 carries out the work that shines, so that light drives three poles of the first optoelectronic switch U11
The collector and emitter of pipe is connected, and then it is electric so that the first coil L1 is obtained, so that the first contact K1 is attracted, and makes outer
Portion's power supply can power to the drive signal analogue unit 130 of connection by the first contact K1 of actuation.
Further, to ensure that said supply unit 110 can reliably, safely work, in the present embodiment, institute
It further includes having self- recoverage fuse F, resistance device, capacitor element and diode component to state power supply unit 110.
Wherein, one end of self- recoverage fuse F connect with one end of the not connected external power supplies of the first contact K1, is another
Output end of the one end as said supply unit 110, to realize that the power supply to said supply unit 110 carries out overcurrent protection.
The resistance device may include first resistor R1, second resistance R2 and thermistor R3.First triode
The base stage of Q1 is connect with the second output terminal of the first optoelectronic switch U11 by the first resistor R1, the first coil
One end of L1 is connect with the collector of the first triode Q1 by the second resistance R2, one end of the first contact K1
It is connect by the thermistor R3 with external power supply.By the first resistor R1, may be implemented to first triode
The current protection of Q1.By the second resistance R2, the power consumption of the first coil L1 can be reduced.Pass through the thermistor
R3, electric current when said supply unit 110 can be inhibited to start.
The capacitor element may include the first capacitance C1, the second capacitance C2, third capacitance C3 and the 4th capacitance C4.It is described
First capacitance C1 is connected in parallel with the second resistance R2, and the second capacitance C2 is connected in parallel with the first contact K1, institute
It states third capacitance C3 and the 4th capacitance C4 and is connected in parallel rear one end and the first contact K1 and self- recoverage fuse F
One end connection of connection, other end ground connection.By the second capacitance C2, the first contact K1 can be eliminated and be attracted or breaking
The spark that the moment opened generates.By the third capacitance C3 and the 4th capacitance C4, the interference of low-and high-frequency can be inhibited to believe
Number.
The diode component may include the first diode D1, the second diode D2, third diode D3, the 4th diode
D4 and Transient Suppression Diode D0.The anode of the first diode D1 and the first coil L1 and first triode
One end connection that one end connection of Q1 connections, cathode are connect with the first coil L1 and external power supply, second diode
The connection of one end that the cathode of D2 is connect with the thermistor R3 and the first contact K1, plus earth, the three or two pole
The anode of pipe D3 is connect with the first contact K1, cathode is connect with the self- recoverage fuse F so that the first contact K1
It is connected by the third diode D3 with the self- recoverage fuse F, cathode and the third of the 4th diode D4
Anode connection, the plus earth of diode D3, the moon of the cathode of the Transient Suppression Diode D0 and the third diode D3
Pole connection, plus earth.By the first diode D1, can effectively consume that first coil L1 generates in dead electricity from
Induced current.By the second diode D2 and the 4th diode D4, ground protection may be implemented.Pass through the three or two pole
Pipe D3, may be implemented isolated from power.By the Transient Suppression Diode D0, surge can be effectively prevented.
Optionally, various types of drive modules that the drive signal analogue unit 130 includes are unrestricted, Ke Yigen
It is configured according to practical application request, for example, the type for each vehicle mounted electrical apparatus 200 that can be detected as needed is configured.
In the present embodiment, the drive signal analogue unit 130 may include steering indicating light drive module.
Further, in the present embodiment, in conjunction with Fig. 4, the steering indicating light drive module may include the first toggle switch
S21, the second optoelectronic switch U12, the second triode Q2, resistance device and power supply chip.The resistance device may include third
Resistance R3 and the 4th resistance R4, the power supply chip may include the first power supply chip U21, second source chip U22, third power supply
Chip U23 and the 4th power supply chip U24.
Wherein, the input terminal of the first toggle switch S21 is connect with the output end of said supply unit 110.Described
The first input end of two optoelectronic switch U12 is connect with the first output end of the first toggle switch S21, the first output terminates
Ground, the second input terminal are connect with external power supply.The base stage of the second triode Q2 and the second of the second optoelectronic switch U12
Output end connection, emitter ground connection.
Also, the base stage of the second triode Q2 and the second output terminal of the second optoelectronic switch U12 pass through described
3rd resistor R3 connections, one end of the 4th resistance R4 connect with the second output terminal of the second optoelectronic switch U12, are another
End ground connection.The input terminal of the first power supply chip U21 connect with the collector of the second triode Q2, power end with it is external
Power supply connection, output end can be connect with left back steering indicating light, input terminal and the two or three pole of the second source chip U22
Collector connection, power end and the external power supply of pipe Q2 connect, output end can be connect with right rear directional, the third power supply
The input terminal of chip U23 connect with the collector of the second triode Q2, the connection of power end and external power supply, output end can
It is connect with turn lamp, left front, the input terminal of the 4th power supply chip U24 connect with the collector of the second triode Q2, is electric
Source is connect with external power supply, output end can be connect with right front turn lamp.
Further, in the present embodiment, the drive signal analogue unit 130 can also include that position lamp drives mould
Block.The position lamp drive module may include third optoelectronic switch U13, third transistor Q3, resistance device and power supply chip.
The resistance device may include the 5th resistance R5 and the 6th resistance R6, the power supply chip may include the 5th power supply chip U25 and
6th power supply chip U26.Also, the first toggle switch S21 is 3 gear switch, further includes second output terminal.
Wherein, the second output terminal of the first input end of the third optoelectronic switch U13 and the first toggle switch S21
Connection, the first output end ground connection, the second input terminal are connect with external power supply.The base stage of the third transistor Q3 and the third
The second output terminal connection of optoelectronic switch U13, emitter ground connection.The base stage of the third transistor Q3 is opened with the third photoelectricity
The second output terminal of U13 is closed by the 5th resistance R5 connections, one end and the third photoelectricity of the 6th resistance R6 are opened
Close second output terminal connection, the other end ground connection of U13.The input terminal of the 5th power supply chip U25 and the third transistor
Collector connection, power end and the external power supply of Q3 connect, output end can be connect with front left position lamp, the 6th power supply core
The input terminal of piece U26 connect with the collector of the third transistor Q3, the connection of power end and external power supply, output end can be with
Front right position lamp connects.
Optionally, the first power supply chip U21, second source chip U22, third power supply chip U23, the 4th power supply core
The model of piece U24, the 5th power supply chip U25 and the 6th power supply chip U26 are unrestricted, can be carried out according to practical application request
Setting.In the present embodiment, model can be AUIPS7141, and the power for exporting electric energy can be 12W.
Further, in the present embodiment, in conjunction with Fig. 5, the drive signal analogue unit 130 can also include ACC electricity
Source module.The ACC power modules may include the second toggle switch S22, the 4th optoelectronic switch U14, the 4th triode Q4,
Two relays, the 5th diode D5, the 5th capacitance C5 and resistance device.The resistance device may include the 7th resistance R7,
Eight resistance R8 and the 9th resistance R9, second relay may include the second coil L2 and the second contact K2.
Wherein, the input terminal of the second toggle switch S22 is connect with the output end of said supply unit 110.Described
The first input end of four optoelectronic switch U14 is connect with the first output end of the second toggle switch S22, the first output terminates
Ground, the second input terminal are connect with the output end of said supply unit 110.The base stage of the 4th triode Q4 and the 4th light
The second output terminal connection of electric switch U14, emitter ground connection.One end of the second coil L2 is with the 4th triode Q4's
The output end of collector connection, the other end and said supply unit 110 connects, one end of the second contact K2 and external power supply
Connection, output end of the other end as ACC power modules.The input terminal and said supply unit of the second toggle switch S22
110 output end passes through the 7th resistance R7 connections, base stage and the 4th optoelectronic switch U14 of the 4th triode Q4
Second output terminal pass through the 8th resistance R8 connections, one end of the 9th resistance R9 and the 4th optoelectronic switch U14
Second output terminal connection, the other end ground connection.The anode of the 5th diode D5 and the second coil L2 and the described 4th
One end connection of the collector connection of triode Q4, the output end of cathode and the second coil L2 and said supply unit 110
One end of connection connects.The 5th capacitance C5 is connected in parallel with the second contact K2.
Further, in the present embodiment, the drive signal analogue unit 130 can also include ON grades of power modules.
The ON grades of power module may include the 5th optoelectronic switch U15, the 5th triode Q5, third relay, the 6th diode D6,
6th capacitance C6 and resistance device.Also, the resistance device may include the tenth resistance R10 and eleventh resistor R11, described
Third relay may include tertiary coil L3 and third contact K3.
Wherein, the second output terminal of the first input end of the 5th optoelectronic switch U15 and the second toggle switch S22
Connection, the first output end ground connection, the second input terminal are connect with the output end of said supply unit 110.The 5th triode Q5
Base stage connect with the second output terminal of the 5th optoelectronic switch U15, emitter ground connection.One end of the tertiary coil L3 with
The collector connection of the 5th triode Q5, the output end connection of the other end and said supply unit 110, the third contact
One end of K3 connect with external power supply, output end of the other end as ON grades of power modules.The base stage of the 5th triode Q5
It is connect by the tenth resistance R10 with the second output terminal of the 5th optoelectronic switch U15, the eleventh resistor R11's
One end is connect with the second output terminal of the 5th optoelectronic switch U15, the other end is grounded.The anode of the 6th diode D6 with
One end connection of the collector of the tertiary coil L3 and the 5th triode Q5 connection, cathode and the tertiary coil L3 and
One end connection of the output end connection of said supply unit 110.The 6th capacitance C6 is connected in parallel with the third contact K3.
Further, in the present embodiment, the drive signal analogue unit 130 can also include that wiper drives mould
Block, gear controller drive module, high beam drive module, dipped headlight drive module, front fog lamp drive module, Rear Fog Lamp driving
Module, strip light drive module, driver's lamp drive module, fan-driving module and loudspeaker drive module.
Wherein, the feeder ear of the wiper drive module connect with the output end of said supply unit 110, output end energy
It is enough to be connect with wiper, to receive driving letter to the wiper output drive signal, and then according to the wiper
Number when whether carry out work and judge the wiper with the presence or absence of failure.
The feeder ear of the gear controller drive module connect with the output end of said supply unit 110, output end energy
It is enough to be connect with gear controller, to be connect to the gear controller output drive signal, and then according to the gear controller
Work whether is carried out when receiving the drive signal judges that the gear controller whether there is failure.
The feeder ear of the high beam drive module connect with the output end of said supply unit 110, output end can be with
High beam connects, with to the high beam output drive signal, and then according to the high beam when receiving the drive signal
Whether carry out work and judges that the high beam whether there is failure.
The feeder ear of the dipped headlight drive module connect with the output end of said supply unit 110, output end can be with
Dipped headlight connects, with to the dipped headlight output drive signal, and then according to the dipped headlight when receiving the drive signal
Whether carry out work and judges that the dipped headlight whether there is failure.
The feeder ear of the front fog lamp drive module connect with the output end of said supply unit 110, output end can be with
Front fog lamp connects, with to the front fog lamp output drive signal, and then according to the front fog lamp when receiving the drive signal
Whether carry out work and judges that the front fog lamp whether there is failure.
The feeder ear of the Rear Fog Lamp drive module connect with the output end of said supply unit 110, output end can be with
Rear Fog Lamp connects, with to the Rear Fog Lamp output drive signal, and then according to the Rear Fog Lamp when receiving the drive signal
Whether carry out work and judges that the Rear Fog Lamp whether there is failure.
The feeder ear of the strip light drive module connect with the output end of said supply unit 110, output end can be with
Strip light connects, with to the strip light output drive signal, and then according to the strip light when receiving the drive signal
Whether carry out work and judges that the strip light whether there is failure.
The feeder ear of driver's lamp drive module connect with the output end of said supply unit 110, output end can be with
Driver's lamp connects, with to driver's lamp output drive signal, and then according to driver's lamp when receiving the drive signal
Whether carry out work and judges that driver's lamp whether there is failure.
The feeder ear of the fan-driving module is connect with the output end of said supply unit 110, output end can be with wind
Fan connection, whether to be carried out to the fan output drive signal, and then according to the fan when receiving the drive signal
Work judges that the fan whether there is failure.
The feeder ear of the loudspeaker drive module is connect with the output end of said supply unit 110, output end can be with loudspeaker
Connection, with to the strip light output drive signal, and then according to the loudspeaker when receiving the drive signal whether into
Row work judges that the loudspeaker whether there is failure.
Optionally, the wiper drive module, gear controller drive module, high beam drive module, dipped headlight drive
Dynamic model block, front fog lamp drive module, Rear Fog Lamp drive module, strip light drive module, driver's lamp drive module, fan drive mould
The electrical equipment that block and loudspeaker drive module include is unrestricted, can be configured according to practical application request, for example, can
To include, but are not limited to power supply chip, optoelectronic switch, toggle switch, triode, resistance device, capacitor element and diode
Device etc..
In conclusion vehicle mounted electrical apparatus detection device 100 provided by the invention and detection operating system 10, pass through power supply unit
110 and drive signal analogue unit 130 be equipped with, to export different drive signals by different output ends, with right
Whether each vehicle mounted electrical apparatus 200 is detected, and being capable of normal work based on corresponding drive signal by obtaining vehicle mounted electrical apparatus 200
Make, to judge that the vehicle mounted electrical apparatus 200 whether there is failure, quickly and conveniently vehicle mounted electrical apparatus 200 be detected to realize,
And then ensure the safety of driving.Also, enters before factory is installed on automobile in vehicle mounted electrical apparatus 200, vehicle mounted electrical apparatus can also be passed through
Detection device 100 is detected each vehicle mounted electrical apparatus 200, to filter out qualified product, or has produced in vehicle mounted electrical apparatus 200
Cheng Hou, can test vehicle mounted electrical apparatus 200 to obtain corresponding operation data, and corresponding vehicle mounted electrical apparatus 200 is obtained with analysis
Reliability and service life, greatly improve the practical value of vehicle mounted electrical apparatus detection device 100.
In the description of the present invention unless specifically defined or limited otherwise, term " setting ", " connection " should do broad sense reason
Solution, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；Can be mechanical connection, it can also
It is electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary the connection inside two elements.
For the ordinary skill in the art, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of vehicle mounted electrical apparatus detection device, which is characterized in that including circuit board and the detection circuit for being integrated in the circuit board, institute
Stating detection circuit includes：
The input terminal of power supply unit, the power supply unit is connect with external power supply, to obtain electric energy and the output of external power supply output
Voltage value is the electric energy of 24V；
Drive signal analogue unit, the feeder ear of the drive signal analogue unit and the output end of said supply unit connect, with
The electric energy of said supply unit output is obtained, and based on the electric energy with output drive signal；
Wherein, the drive signal analogue unit includes multiple output ends, each output end can respectively with corresponding vehicle mounted electrical apparatus
Driving end connection, with respectively to corresponding vehicle mounted electrical apparatus output drive signal.
2. vehicle mounted electrical apparatus detection device according to claim 1, which is characterized in that said supply unit includes：
The input terminal of first button switch, first button switch is connect with external power supply；
First optoelectronic switch, the first input end of first optoelectronic switch connect with the output end of first button switch,
One output end ground connection, the second input terminal are connect with external power supply；
First triode, the base stage of first triode is connect with the second output terminal of first optoelectronic switch, emitter connects
Ground；
First relay, including first coil and the first contact, the collection of one end of the first coil and first triode
Electrode connection, the other end and external power supply connect, and one end of first contact is connect with external power supply, described in other end conduct
The output end of power supply unit；
Wherein, after first button switch is closed, external power supply drives the second input terminal and the of first optoelectronic switch
Two output ends are connected, and drive first triode ON by second input terminal and second output terminal, so that described the
One coil obtains described in electric control the first contact and is attracted so that external power supply by first contact to the drive signal mould of connection
Quasi-simple member power supply.
3. vehicle mounted electrical apparatus detection device according to claim 2, which is characterized in that said supply unit further includes：
Self- recoverage fuse, one end which is not connected with external power supply with first contact connect, are another
Output end of the one end as said supply unit；
Resistance device, including first resistor, second resistance and thermistor, the base stage of first triode and described first
The second output terminal of optoelectronic switch is connected by the first resistor, one end of the first coil and first triode
Collector is connected by the second resistance, and one end of first contact is connect with external power supply by the thermistor；
Capacitor element, including the first capacitance, the second capacitance, third capacitance and the 4th capacitance, first capacitance and described the
Two resistor coupled in parallel connect, and second capacitance is connected in parallel with first contact, the third capacitance and the 4th capacitance
It is connected in parallel one end connection, the other end ground connection that rear one end is connect with first contact and the self- recoverage fuse；
Diode component, including the first diode, the second diode, third diode, the 4th diode and transient state inhibit two
Pole pipe, one end connection that the anode of first diode is connect with the first coil and first triode, cathode with
The connection of one end that the first coil is connected with external power supply, the cathode of second diode and the thermistor and described
One end connection, the plus earth of first contact connection, the anode of the third diode connect with first contact, cathode and
The self- recoverage fuse connects so that first contact is connected with the self- recoverage fuse by the third diode,
The cathode of 4th diode connect with the anode of the third diode, plus earth, the Transient Suppression Diode
Cathode connect with the cathode of the third diode, plus earth.
4. according to the vehicle mounted electrical apparatus detection device described in claim 1-3 any one, which is characterized in that the drive signal mould
Quasi-simple member includes steering indicating light drive module, which includes：
First toggle switch, the input terminal of first toggle switch and the output end of said supply unit connect；
Second optoelectronic switch, the first input end of second optoelectronic switch and the first output end of first toggle switch connect
It connects, the first output end is grounded, the second input terminal is connect with external power supply；
Second triode, the base stage of second triode is connect with the second output terminal of second optoelectronic switch, emitter connects
Ground；
Resistance device, including 3rd resistor and the 4th resistance, the base stage of second triode and second optoelectronic switch
Second output terminal is connected by the 3rd resistor, one end of the 4th resistance and the second output of second optoelectronic switch
End connection, other end ground connection；
Power supply chip, including the first power supply chip, second source chip, third power supply chip and the 4th power supply chip, it is described
The input terminal of first power supply chip is connect with the collector of second triode, power end and external power supply connect, output end
It can be connect with left back steering indicating light, the input terminal of the second source chip connect with the collector of second triode, is electric
Source is connect with external power supply, output end can be connect with right rear directional, the input terminal of the third power supply chip with it is described
The collector connection of second triode, power end and external power supply connection, output end can be connect with turn lamp, left front, and described the
The input terminal of four power supply chips is connect with the collector of second triode, power end and external power supply connect, output end energy
It is enough to be connect with right front turn lamp.
5. vehicle mounted electrical apparatus detection device according to claim 4, which is characterized in that first toggle switch is 3 grades and opens
It closes, and further includes second output terminal, the drive signal analogue unit further includes position lamp drive module, which drives mould
Block includes：
Third optoelectronic switch, the first input end of the third optoelectronic switch and the second output terminal of first toggle switch connect
It connects, the first output end is grounded, the second input terminal is connect with external power supply；
Third transistor, the base stage of the third transistor is connect with the second output terminal of the third optoelectronic switch, emitter connects
Ground；
Resistance device, including the 5th resistance and the 6th resistance, the base stage of the third transistor and the third optoelectronic switch
Second output terminal is connected by the 5th resistance, one end of the 6th resistance and the second output of the third optoelectronic switch
End connection, other end ground connection；
Power supply chip, including the 5th power supply chip and the 6th power supply chip, the input terminal of the 5th power supply chip and described the
Collector connection, power end and the external power supply of three triodes connect, output end can be connect with front left position lamp, and the described 6th
The input terminal of power supply chip connect with the collector of the third transistor, the connection of power end and external power supply, output end can
It is connect with front right position lamp.
6. according to the vehicle mounted electrical apparatus detection device described in claim 1-3 any one, which is characterized in that the drive signal mould
Quasi-simple member further includes ACC power modules, which includes：
Second toggle switch, the input terminal of second toggle switch and the output end of said supply unit connect；
4th optoelectronic switch, the first input end of the 4th optoelectronic switch and the first output end of second toggle switch connect
It connects, the output end connection of the first output end ground connection, the second input terminal and said supply unit；
4th triode, the base stage of the 4th triode is connect with the second output terminal of the 4th optoelectronic switch, emitter connects
Ground；
Second relay, including the second coil and the second contact, the collection of one end of second coil and the 4th triode
The output end of electrode connection, the other end and said supply unit connects, and one end of second contact connect with external power supply, is another
Output end of the one end as ACC power modules；
Resistance device, including the 7th resistance, the 8th resistance and the 9th resistance, the input terminal of second toggle switch with it is described
The output end of power supply unit is connected by the 7th resistance, base stage and the 4th optoelectronic switch of the 4th triode
Second output terminal is connected by the 8th resistance, one end of the 9th resistance and the second output of the 4th optoelectronic switch
End connection, other end ground connection；
5th diode, the anode of the 5th diode are connect with the collector of second coil and the 4th triode
One end connection that one end connection, cathode are connect with the output end of second coil and said supply unit；
5th capacitance, the 5th capacitance are connected in parallel with second contact.
7. vehicle mounted electrical apparatus detection device according to claim 6, which is characterized in that second toggle switch is 3 grades and opens
It closes, and further includes second output terminal, the drive signal analogue unit further includes ON grades of power modules, the ON grades of power module packet
It includes：
5th optoelectronic switch, the first input end of the 5th optoelectronic switch and the second output terminal of second toggle switch connect
It connects, the output end connection of the first output end ground connection, the second input terminal and said supply unit；
5th triode, the base stage of the 5th triode is connect with the second output terminal of the 5th optoelectronic switch, emitter connects
Ground；
Third relay, including tertiary coil and third contact, the collection of one end of the tertiary coil and the 5th triode
The output end of electrode connection, the other end and said supply unit connects, and one end of the third contact connect with external power supply, is another
Output end of the one end as ON grades of power modules；
Resistance device, including the tenth resistance and eleventh resistor, base stage and the 5th photoelectricity of the 5th triode are opened
The second output terminal of pass is connected by the tenth resistance, and the of one end of the eleventh resistor and the 5th optoelectronic switch
The connection of two output ends, other end ground connection；
6th diode, what the anode of the 6th diode was connect with the collector of the tertiary coil and the 5th triode
One end connection that one end connection, cathode are connect with the output end of the tertiary coil and said supply unit；
6th capacitance, the 6th capacitance are connected in parallel with the third contact.
8. according to the vehicle mounted electrical apparatus detection device described in claim 1-3 any one, which is characterized in that the drive signal mould
Quasi-simple member further includes：
Wiper drive module, the feeder ear and the output end connection of said supply unit, output end of the wiper drive module
It can be connect with wiper, with to the wiper output drive signal；
Gear controller drive module, the feeder ear of the gear controller drive module and the output end of said supply unit connect
Connect, output end can be connect with gear controller, with to the gear controller output drive signal；
High beam drive module, the feeder ear and the output end connection of said supply unit, output end of the high beam drive module
It can be connect with high beam, with to the high beam output drive signal；
Dipped headlight drive module, the feeder ear and the output end connection of said supply unit, output end of the dipped headlight drive module
It can be connect with dipped headlight, with to the dipped headlight output drive signal；
Front fog lamp drive module, the feeder ear and the output end connection of said supply unit, output end of the front fog lamp drive module
It can be connect with front fog lamp, with to the front fog lamp output drive signal；
Rear Fog Lamp drive module, the feeder ear and the output end connection of said supply unit, output end of the Rear Fog Lamp drive module
It can be connect with Rear Fog Lamp, with to the Rear Fog Lamp output drive signal；
Strip light drive module, the feeder ear and the output end connection of said supply unit, output end of the strip light drive module
It can be connect with strip light, with to the strip light output drive signal；
Driver's lamp drive module, the feeder ear and the output end connection of said supply unit, output end of driver's lamp drive module
It can be connect with driver's lamp, with to driver's lamp output drive signal；
Fan-driving module, the feeder ear of the fan-driving module and the output end connection of said supply unit, output end can
It is connect with fan, with to the fan output drive signal；
Loudspeaker drive module, the feeder ear of the loudspeaker drive module and the output end connection of said supply unit, output end can
It is connect with loudspeaker, with to the loudspeaker output drive signal.
9. a kind of detection operating system, which is characterized in that including vehicle mounted electrical apparatus and vehicle mounted electrical apparatus detection device, the vehicle mounted electrical apparatus
Detection device includes circuit board and is integrated in the detection circuit of the circuit board, and the detection circuit includes：
The input terminal of power supply unit, the power supply unit is connect with external power supply, to obtain electric energy and the output of external power supply output
Voltage value is the electric energy of 24V；
Drive signal analogue unit, the feeder ear of the drive signal analogue unit and the output end of said supply unit connect, with
The electric energy of said supply unit output is obtained, and based on the electric energy with output drive signal；
Wherein, the drive signal analogue unit includes multiple output ends, each output end can respectively with corresponding vehicle mounted electrical apparatus
Driving end connection, with respectively to corresponding vehicle mounted electrical apparatus output drive signal.
10. detection operating system according to claim 9, which is characterized in that said supply unit includes：
The input terminal of first button switch, first button switch is connect with external power supply；
First optoelectronic switch, the first input end of first optoelectronic switch connect with the output end of first button switch,
One output end ground connection, the second input terminal are connect with external power supply；
First triode, the base stage of first triode is connect with the second output terminal of first optoelectronic switch, emitter connects
Ground；
First relay, including first coil and the first contact, the collection of one end of the first coil and first triode
Electrode connection, the other end and external power supply connect, and one end of first contact is connect with external power supply, described in other end conduct
The output end of power supply unit；
Wherein, after first button switch is closed, external power supply drives the second input terminal and the of first optoelectronic switch
Two output ends are connected, and drive first triode ON by second input terminal and second output terminal, so that described the
One coil obtains described in electric control the first contact and is attracted so that external power supply by first contact to the drive signal mould of connection
Quasi-simple member power supply.
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