CN205989670U - A kind of highly reliable charging rolling stock connection detection circuit - Google Patents
A kind of highly reliable charging rolling stock connection detection circuit Download PDFInfo
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- CN205989670U CN205989670U CN201621030816.XU CN201621030816U CN205989670U CN 205989670 U CN205989670 U CN 205989670U CN 201621030816 U CN201621030816 U CN 201621030816U CN 205989670 U CN205989670 U CN 205989670U
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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
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
This utility model is related to a kind of highly reliable charging rolling stock connection detection circuit, and it includes being sequentially connected prime discharge circuit, isolation amplifier circuit, rear class discharge circuit；Described prime discharge circuit input connects the test point of charger panel；The output of rear class discharge circuit connects controller.Compared with prior art this utility model adopts isolated wagon control to guide testing circuit, and circuit anti-interference ability is than the testing circuit strong antijamming capability of existing no isolation；Employ three-level discharge circuit, signals collecting precision is higher with the existing acquisition precision only with one-level amplifier；Employ multiple filter mode, circuit anti-interference ability controls guiding single stage filtering or no filtering technique, strong antijamming capability than existing；Input carries out signal clamper using diode, and circuit protection performance controls guiding detection no signal clamper strong than existing.
Description
Technical field
This utility model is related to New-energy electric vehicle charging field, and especially a kind of highly reliable charging rolling stock connects inspection
Slowdown monitoring circuit.
Background technology
In DC charging motor product on the market at present, there is quite a few charger no vehicle connecting detection function,
Or vehicle connecting detection functional lability, easily producing misoperation, charging rolling stock connecting detection function is abnormal, and vehicle is filled
There is very big charging potential safety hazard in electricity.
Charger and vehicle connecting detection control principle such as Fig. 1, vehicle connecting detection function body is made up of 3 parts：Fill
The panel of motor internal, charging gun, cradle.Charger judges according to the voltage of test point 1, and whether charging vehicle
It is reliably connected completely, after only vehicle is reliably connected, charger could allow to start and charge, otherwise because of the output voltage of charger
High and output current is big, it is charged in the case that vehicle is not reliably connected, easily cause charging gun and charging vehicle socket
Junction, burns device due to loose contact sparking.S within wherein when the charging gun of charger switches off and vehicle fills
When electric seat is not plugged, test point 1 voltage is 12V, now shows that charging gun and charger, charging vehicle three are all not connected with;
When S switch within when charger charging gun closes and Vehicular charging seat does not plug, test point 1 voltage is 6V, now shows to fill
Motor and one of charging gun or charging vehicle are not connected with；S switch closure within when charger charging gun and Vehicular charging
When seat is correctly plugged, test point 1 voltage is 4V, now shows that charger is correctly connected with charging gun, charging vehicle three.Only
After having charger to be all correctly connected with charging gun, charging vehicle three, charger just allows to start to charge, and otherwise needs to stop at once
Charge. prevent charging potential safety hazard.Its control principle is referring to national charging electric vehicle standard.But this detection control circuit
Unstable also not accurate enough, easily produce misoperation, or reaction is not in time thus lead to charging circuit to burn.
Content of the invention
The purpose of this utility model is to solve the problems of the prior art and provide a kind of highly reliable charging rolling stock even
Connect testing circuit.
This utility model employs the following technical solutions realization：Including be sequentially connected prime discharge circuit, isolation amplifier circuit,
Rear class discharge circuit；Described prime discharge circuit input connects the test point of charger panel；The output of rear class discharge circuit connects control
Device processed.
Further, also include a prime filter circuit；Described prime discharge circuit through described prime filter circuit with fill
The test point of motor control panel connects；Described prime filter circuit includes the first electric capacity, the second electric capacity, first resistor and the second electricity
Resistance；Described first resistor one end connects the test point of charger panel, first electric capacity one end, pull-up resistor respectively；First resistor
The other end connects second electric capacity one end, prime discharge circuit respectively；Another termination of first electric capacity second resistance one end；Second resistance is another
One end connects the second electric capacity other end, prime discharge circuit respectively.
Further, also include a prime clamp circuit；Described prime clamp circuit includes the first to the 3rd diode；The
One diode anode connects the second diode anode, second electric capacity one end respectively；First diode cathode connects high level；Two or two pole
Tube cathode connects the second electric capacity other end, the 3rd diode anode, the input of prime discharge circuit respectively；3rd diode cathode connects height
Level.
Further, described prime discharge circuit include 3rd resistor, the 4th resistance, the 3rd electric capacity, the 4th diode and
First amplifier；Described 3rd resistor one termination power ground, another termination the first amplifier positive input；4th resistance one termination the
One amplifier negative input, another termination first amplifier output；3rd electric capacity and the 4th resistor coupled in parallel；4th diode cathode divides
Do not connect the first amplifier positive input, the first diode anode；4th diode anode connect respectively the first amplifier negative input, second
Diode cathode.
Further, described isolation amplifier circuit include the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 4th
Electric capacity, the 5th electric capacity, the 6th electric capacity and isolated amplifier；Described isolated amplifier first input connect respectively high level,
Four electric capacity one end；Another termination power of 4th electric capacity ground；Described 5th resistance one end connects the output of prime discharge circuit, isolation respectively
Formula amplifier second inputs；The described 5th resistance other end connects isolated amplifier the 3rd input, the 6th resistance one end respectively；The
Another termination power of six resistance ground；Isolated amplifier the 4th input connects power supply ground；Isolated amplifier first exports and connects respectively
High level, the 5th electric capacity one end；Another termination signal ground of 5th electric capacity；Isolated amplifier second output connects the 7th resistance one
End；Isolated amplifier the 3rd output connects the 8th resistance one end；Isolated amplifier the 4th output connects signal ground；6th electric capacity one
Terminate the 7th resistance one end；Another termination of 6th electric capacity the 8th resistance one end.
Preferably, described isolated amplifier is AMC1200 linear optical coupling.
Further, described rear class discharge circuit includes the second amplifier, the 9th resistance, the 7th electric capacity；Described 9th electricity
Resistance one termination the second amplifier negative input, another termination second amplifier output；7th electric capacity and the 9th resistor coupled in parallel.
Further, also include a rear class filtering circuit；Described rear class filtering circuit includes the 8th electric capacity and the tenth resistance；
Described tenth resistance one termination rear class discharge circuit output, another termination the 8th electric capacity one end.
Further, also include a rear class clamp circuit；Described rear class clamp circuit includes the 5th diode, the six or two pole
Pipe；5th diode anode connects the 6th diode cathode, the 8th electric capacity one end, controller input respectively；5th diode cathode
Connect high level；6th diode anode connects signal ground, the 8th electric capacity other end respectively.
Compared with prior art, this utility model has advantages below：Using isolated wagon control guiding detection electricity
Road, circuit anti-interference ability is than the testing circuit strong antijamming capability of existing no isolation；Employ three-level discharge circuit, signal is adopted
Collection precision is higher with the existing acquisition precision only with one-level amplifier；Employ multiple filter mode, circuit anti-interference ability
Control guiding single stage filtering or no filtering technique, strong antijamming capability than existing；Input carries out signal clamper using diode, electricity
Road protective value controls guiding detection no signal clamper strong than existing.
Brief description
Fig. 1 is prior art vehicle connecting detection principle schematic.
Fig. 2 is the cardinal principle block diagram of utility model.
Fig. 3 is physical circuit schematic diagram of the present utility model.
Specific embodiment
With specific embodiment, explanation is further explained to this utility model below in conjunction with the accompanying drawings.
Referring to Fig. 2, this utility model provides a kind of highly reliable charging rolling stock connection detection circuit, and it includes connecting successively
Connect prime discharge circuit, isolation amplifier circuit, rear class discharge circuit；Described prime discharge circuit input connects charger panel
Test point；The output of rear class discharge circuit connects controller.
It is preferably to ensure that voltage stabilization also with the addition of filter circuit and clamp circuit in the input of discharge circuit or output.
Physical circuit is referring to Fig. 3.
A prime filter circuit is also included in this utility model one embodiment；Described prime discharge circuit is through described prime
Filter circuit is connected with the test point of charger panel；Described prime filter circuit includes the first electric capacity C235, the second electric capacity
C187, first resistor R300 and second resistance R284；Described first resistor one end connects the test point of charger panel respectively
CN41, first electric capacity C235 one end, pull-up resistor R299；The first resistor other end connects second electric capacity C187 one end, prime respectively
Clamp circuit；Another termination of first electric capacity C235 second resistance one end；It is another that the second resistance other end meets the second electric capacity C187 respectively
One end, prime clamp circuit.CN41 in wherein Fig. 3 is the test point 1 in Fig. 1, and the R299 in Fig. 2 is the R1 in Fig. 1.
Further, also include a prime clamp circuit；Described prime clamp circuit includes the first to the 3rd diode；The
One diode D39 anode connects the second diode D37 anode, second electric capacity C187 one end respectively；First diode cathode connects high electricity
Flat；Second diode cathode connects the second electric capacity C187 other end, the 3rd diode D40 anode, the input of prime discharge circuit respectively；
3rd diode cathode connects high level.Prime clamp circuit serves clamper protective effect.
Further, described prime discharge circuit include 3rd resistor R285, the 4th resistance R283, the 3rd electric capacity C185,
4th diode and the first amplifier IC47；Described 3rd resistor R285 mono- termination power ground, another termination the first amplifier is just
Input；4th resistance R283 mono- terminates the first amplifier negative input, another termination first amplifier output；3rd electric capacity C185 with
4th resistance R283 is in parallel；4th diode cathode connects the first amplifier positive input, the first diode anode respectively；Four or two pole
Tube anode connects the first amplifier negative input, the second diode cathode respectively.
Further, described isolation amplifier circuit include the 5th resistance R247, the 6th resistance R248, the 7th resistance R194,
8th resistance R195, the 4th electric capacity C163, the 5th electric capacity C127, the 6th electric capacity C129 and isolated amplifier IC41；Described every
Input from formula amplifier first and connect high level, the 4th electric capacity C163 one end respectively；Another termination power of 4th electric capacity C163 ground；Institute
State that the 5th resistance R247 one end connects the output of prime discharge circuit respectively, isolated amplifier second inputs；Described 5th resistance
The R247 other end connects isolated amplifier the 3rd input, the 6th resistance R248 one end respectively；6th resistance R248 another termination electricity
Source ground；Isolated amplifier the 4th input connects power supply ground；Isolated amplifier first exports and connects high level, the 5th electric capacity respectively
C127 one end；Another termination signal ground of 5th electric capacity C127；Isolated amplifier second output connects the 7th resistance R194 one end；Every
Connect the 8th resistance R195 one end from formula amplifier the 3rd output；Isolated amplifier the 4th output connects signal ground；6th electric capacity
C129 mono- terminates the 7th resistance R194 one end；Another termination of 6th electric capacity C129 the 8th resistance R195 one end.
Preferably, described isolated amplifier is AMC1200 linear optical coupling.
Further, described rear class discharge circuit includes the second amplifier IC28, the 9th resistance R188, the 7th electric capacity C97；
Described 9th resistance R188 mono- terminates the second amplifier negative input, another termination second amplifier output；7th electric capacity C97 and
Nine resistance R188 are in parallel.
Further, also include a rear class filtering circuit, described rear class filtering circuit includes the 8th electric capacity C63 and the tenth electricity
Resistance R123；Described tenth resistance R123 mono- termination rear class discharge circuit output, another termination the 8th electric capacity C63 one end；8th electricity
Hold C63 another termination rear class clamp circuit input.
Further, also include a rear class clamp circuit, described rear class clamp circuit include the 5th diode D10, the 6th
Diode D1；5th diode D10 anode connects the 6th diode D1 negative electrode, the 8th electric capacity C63 one end, controller input respectively；
5th diode D10 negative electrode connects high level；6th diode D1 anode connects signal ground, the 8th electric capacity C63 other end respectively.
To sum up the technical solution of the utility model adopts isolated wagon control to guide testing circuit, circuit anti-interference energy
Power is than the testing circuit strong antijamming capability of existing no isolation；Employ three-level discharge circuit, signals collecting precision with existing
Acquisition precision only with one-level amplifier is higher；Employ multiple filter mode, circuit anti-interference ability controls guiding than existing
Single stage filtering or no filtering technique, strong antijamming capability；Input carries out signal clamper using diode, and circuit protection performance is than existing
There is control guiding detection no signal clamper strong.
Above-described embodiment limits this utility model never in any form, all according to changing that technical solutions of the utility model are made
Become, produced function without departing from technical solutions of the utility model scope when, belong to protection model of the present utility model
Enclose.
Claims (9)
1. a kind of highly reliable charging rolling stock connection detection circuit it is characterised in that：Including be sequentially connected prime discharge circuit,
Isolation amplifier circuit, rear class discharge circuit；Described prime discharge circuit input connects the test point of charger panel；Rear class amplifier
Circuit output connects controller.
2. highly reliable charging rolling stock connection detection circuit according to claim 1 it is characterised in that：Before also including one
Level filter circuit；Described prime discharge circuit is connected with the test point of charger panel through described prime filter circuit；Described
Prime filter circuit includes the first electric capacity, the second electric capacity, first resistor and second resistance；Described first resistor one end connects respectively to be filled
The test point of motor control panel, first electric capacity one end, pull-up resistor；The first resistor other end connects second electric capacity one end, front respectively
Level discharge circuit；Another termination of first electric capacity second resistance one end；The second resistance other end connects the second electric capacity other end, front respectively
Level discharge circuit.
3. highly reliable charging rolling stock connection detection circuit according to claim 2 it is characterised in that：Before also including one
Level clamp circuit；Described prime clamp circuit includes the first to the 3rd diode；First diode anode connects the two or two pole respectively
Tube anode, second electric capacity one end；First diode cathode connects high level；It is another that second diode cathode connects the second electric capacity respectively
End, the input of the 3rd diode anode, prime discharge circuit；3rd diode cathode connects high level.
4. highly reliable charging rolling stock connection detection circuit according to claim 3 it is characterised in that：Described prime fortune
Electric discharge road includes 3rd resistor, the 4th resistance, the 3rd electric capacity, the 4th diode and the first amplifier；Described 3rd resistor one end
Connect power supply ground, another termination the first amplifier positive input；4th resistance one terminates the first amplifier negative input, another termination first
Amplifier exports；3rd electric capacity and the 4th resistor coupled in parallel；4th diode cathode connect respectively the first amplifier positive input, the one or two
Pole pipe anode；4th diode anode connects the first amplifier negative input, the second diode cathode respectively.
5. highly reliable charging rolling stock connection detection circuit according to claim 1 it is characterised in that：Described isolation fortune
Electric discharge road include the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 4th electric capacity, the 5th electric capacity, the 6th electric capacity and every
From formula amplifier；Described isolated amplifier first inputs and connects high level, the 4th electric capacity one end respectively；Another termination of 4th electric capacity
Power supply ground；Described 5th resistance one end connects the output of prime discharge circuit respectively, isolated amplifier second inputs；Described 5th electricity
The resistance other end connects isolated amplifier the 3rd input, the 6th resistance one end respectively；Another termination power of 6th resistance ground；Isolated
Amplifier the 4th input connects power supply ground；Isolated amplifier first exports and connects high level, the 5th electric capacity one end respectively；5th electric capacity
Another termination signal ground；Isolated amplifier second output connects the 7th resistance one end；Isolated amplifier the 3rd output connects the 8th
Resistance one end；Isolated amplifier the 4th output connects signal ground；6th electric capacity one terminates the 7th resistance one end；6th electric capacity is another
Terminate the 8th resistance one end.
6. highly reliable charging rolling stock connection detection circuit according to claim 5 it is characterised in that：Described isolated
Amplifier is AMC1200 linear optical coupling.
7. highly reliable charging rolling stock connection detection circuit according to claim 5 it is characterised in that：Described rear class fortune
Electric discharge road
Including the second amplifier, the 9th resistance, the 7th electric capacity；Described 9th resistance one terminates the second amplifier negative input, another
Terminate the second amplifier output；7th electric capacity and the 9th resistor coupled in parallel.
8. highly reliable charging rolling stock connection detection circuit according to claim 7 it is characterised in that：After also including one
Level filter circuit；Described rear class filtering circuit includes the 8th electric capacity and the tenth resistance；Described tenth resistance one terminates rear class amplifier
Circuit output, another termination the 8th electric capacity one end.
9. highly reliable charging rolling stock connection detection circuit according to claim 8 it is characterised in that：After also including one
Level clamp circuit；Described rear class clamp circuit includes the 5th diode, the 6th diode；5th diode anode connects the 6th respectively
Diode cathode, the 8th electric capacity one end, controller input；5th diode cathode connects high level；6th diode anode is respectively
Connect signal ground, the 8th electric capacity other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621030816.XU CN205989670U (en) | 2016-08-31 | 2016-08-31 | A kind of highly reliable charging rolling stock connection detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621030816.XU CN205989670U (en) | 2016-08-31 | 2016-08-31 | A kind of highly reliable charging rolling stock connection detection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205989670U true CN205989670U (en) | 2017-03-01 |
Family
ID=58104843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621030816.XU Active CN205989670U (en) | 2016-08-31 | 2016-08-31 | A kind of highly reliable charging rolling stock connection detection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205989670U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018176289A1 (en) * | 2017-03-29 | 2018-10-04 | 深圳市大疆创新科技有限公司 | Amplification circuit, laser measurement device, and mobile platform |
| US10539663B2 (en) | 2017-03-29 | 2020-01-21 | SZ DJI Technology Co., Ltd. | Light detecting and ranging (LIDAR) signal processing circuitry |
-
2016
- 2016-08-31 CN CN201621030816.XU patent/CN205989670U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018176289A1 (en) * | 2017-03-29 | 2018-10-04 | 深圳市大疆创新科技有限公司 | Amplification circuit, laser measurement device, and mobile platform |
| CN108700648A (en) * | 2017-03-29 | 2018-10-23 | 深圳市大疆创新科技有限公司 | A kind of amplifying circuit and laser measuring device for measuring, mobile platform |
| US10539663B2 (en) | 2017-03-29 | 2020-01-21 | SZ DJI Technology Co., Ltd. | Light detecting and ranging (LIDAR) signal processing circuitry |
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