CN207703965U - A kind of direct-current charging post charging gun connecting detection unit - Google Patents
A kind of direct-current charging post charging gun connecting detection unit Download PDFInfo
- Publication number
- CN207703965U CN207703965U CN201721814837.5U CN201721814837U CN207703965U CN 207703965 U CN207703965 U CN 207703965U CN 201721814837 U CN201721814837 U CN 201721814837U CN 207703965 U CN207703965 U CN 207703965U
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- China
- Prior art keywords
- circuit
- connect
- charging gun
- detection unit
- optical coupling
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Abstract
The utility model discloses a kind of direct-current charging post charging gun connecting detection unit; including power supply circuit, optical coupling isolation circuit, amplifier detection circuit, clamping protective circuit, ARM minimum system circuit; power supply circuit is powered for this detection unit; the signal to be detected of charging gun is connect with clamping protective circuit electric signal; clamping protective circuit is connect with amplifier detection circuit electric signal; amplifier detection circuit is connect with optical coupling isolation circuit, and optical coupling isolation circuit point is connect with ARM minimum system circuit electric signal.The utility model solves the problems, such as that charging gun occurs in system operation surprisingly to be disconnected and can't detect, and this element has isolation effect good, and protective value is high, responds fast feature.
Description
Technical field
The utility model is related to a kind of direct-current charging post charging gun connecting detection units.
Background technology
With the development of New-energy electric vehicle, in direct-current charging post system, direct current rifle is as entire charging pile system
The crucial part being connect with New-energy electric vehicle.Therefore the detection of the connection status of rifle becomes most important.Once rifle
State is not inconsistent with virtual condition, may lead to the generation of safety accident.
Invention content
Based on the above shortcoming, the utility model provides a kind of direct-current charging post charging gun connecting detection unit, purpose
It is to solve direct-current charging post system in the process of running, it can in real time be detected the connection status of charging gun, into one
The overall security of raising system is walked, the probability that safety accident occurs is reduced.
In order to achieve the above objectives, the technical solution of the utility model is as follows：A kind of direct-current charging post charging gun connecting detection
Unit, including power supply circuit, optical coupling isolation circuit, amplifier detection circuit, clamping protective circuit, ARM minimum system circuit, power supply
Circuit is powered for this detection unit, and the signal to be detected of charging gun is connect with clamping protective circuit electric signal, clamping protective circuit
It is connect with amplifier detection circuit electric signal, amplifier detection circuit is connect with optical coupling isolation circuit, and optical coupling isolation circuit point and ARM are most
Mini system circuit electric signal connects.
ARM chips are mk10dn512vlk10 using model in the ARM minimum system circuit.
The utility model solves the problems, such as that charging gun occurs in system operation surprisingly to be disconnected and can't detect, this element tool
Have that isolation effect is good, protective value is high, responds fast feature.
Description of the drawings
Fig. 1 power supply partial circuit diagrams；
Fig. 2 light-coupled isolation partial circuit diagrams；
Fig. 3 amplifier detection part circuit diagrams；
Fig. 4 clamp protection circuits；
Fig. 5 ARM minimum system circuit figures；
Fig. 6 is the structural principle block diagram of the utility model.
Specific implementation mode
It is described further below according to attached drawing citing：
Embodiment 1
As shown in fig. 6, a kind of direct-current charging post charging gun connecting detection unit, including power supply circuit 5, optical coupling isolation circuit
3, amplifier detection circuit 2, clamping protective circuit 1, ARM minimum system circuit 4, power supply circuit are powered for this detection unit, charging
The signal to be detected 6 of rifle is connect with clamping protective circuit electric signal, and clamping protective circuit is connect with amplifier detection circuit electric signal,
Amplifier detection circuit is connect with optical coupling isolation circuit, and optical coupling isolation circuit point is connect with ARM minimum system circuit electric signal.Its
In, the output end of light-coupled isolation part and the I/O mouths of ARM minimum system circuit connect.The detection signal of rifle is protected by clamper
Circuit enters amplifier and signal is passed in ARM chips by optical coupling isolation circuit, is passed through after amplifier carries out signal preliminary treatment
ARM chips are handled and are controlled, once detecting that improper variation occurs for the connection status of rifle, stopping entirely being charged
Journey is to ensure safety.Amplifier detection circuit is detected the connection status of charging gun, and optical coupling isolation circuit makes signal more may be used
It leans on, clamping protective circuit makes system can be with stable operation.ARM minimum systems carry out the processing of data.
Its each circuit particular situation is as follows：
1, power supply circuit：For circuit as shown in Figure 1, U706 is power module, model B1212S, R704 are resistance,
Resistance value is 1K, plays the role of a fictitious load herein, and C715 is capacitance, is worth for 0.1uF/25V, plays the role of filtering herein.
2, optical coupling isolation circuit：For circuit as shown in Fig. 2, V25 is light-coupled isolation chip, model EL817, R204 are electricity
Resistance, resistance value 10K play the role of pull-up herein.
3, amplifier detection circuit：Circuit is as shown in figure 3, detection circuit needs to be detected with two-way amplifier, model
LM293, first, after charging gun is connect with automobile, by there are one the negative inputs that the voltage of 4V enters U5A, and it is defeated in the same direction
Enter voltage of the end by the partial pressure input 4.8V of resistance, the output end of U5A will export 1, the similarly inverting input input of U5B
4V, and noninverting input inputs 7.2V by electric resistance partial pressure, therefore the output end of U5B will export 1.
4, clamp protection circuits：As shown in figure 4, Q2 is diode, model M5C plays the role of clamp, prevents circuit
Input voltage is more than 12V, and R54, R57 are respectively resistance, and resistance value 2K plays the role of matching voltage herein.
5, ARM minimum system circuit：Circuit between VSS and VDD as shown in figure 5, increase a filter capacitor.Detection is filled
After the pin of electric gun shape state receives corresponding low and high level variation, the connection status of rifle at this time is identified.Pass through main control chip
It handles to realize the operations such as charging or fault alarm shutdown.It is mk10dn512vlk10 to use model using ARM chips.
Claims (2)
1. a kind of direct-current charging post charging gun connecting detection unit, including power supply circuit, optical coupling isolation circuit, amplifier detection electricity
Road, clamping protective circuit, ARM minimum system circuit, power supply circuit are powered for this detection unit, it is characterized in that：The inspection of charging gun
It surveys signal to connect with clamping protective circuit electric signal, clamping protective circuit is connect with amplifier detection circuit electric signal, amplifier detection
Circuit is connect with optical coupling isolation circuit, and optical coupling isolation circuit point is connect with ARM minimum system circuit electric signal.
2. a kind of direct-current charging post charging gun connecting detection unit according to claim 1, it is characterised in that：Described
ARM chips are mk10dn512vlk10 using model in ARM minimum system circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721814837.5U CN207703965U (en) | 2017-12-22 | 2017-12-22 | A kind of direct-current charging post charging gun connecting detection unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721814837.5U CN207703965U (en) | 2017-12-22 | 2017-12-22 | A kind of direct-current charging post charging gun connecting detection unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207703965U true CN207703965U (en) | 2018-08-07 |
Family
ID=63028051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721814837.5U Expired - Fee Related CN207703965U (en) | 2017-12-22 | 2017-12-22 | A kind of direct-current charging post charging gun connecting detection unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207703965U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109302294A (en) * | 2018-11-21 | 2019-02-01 | 湖南晨威高科有限公司 | A kind of direct current rush-harvesting and rush-planting charging pile isolation communication protection circuit |
-
2017
- 2017-12-22 CN CN201721814837.5U patent/CN207703965U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109302294A (en) * | 2018-11-21 | 2019-02-01 | 湖南晨威高科有限公司 | A kind of direct current rush-harvesting and rush-planting charging pile isolation communication protection circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180807 Termination date: 20191222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |