CN207705865U - A kind of charging pile circuit - Google Patents
A kind of charging pile circuit Download PDFInfo
- Publication number
- CN207705865U CN207705865U CN201820108707.8U CN201820108707U CN207705865U CN 207705865 U CN207705865 U CN 207705865U CN 201820108707 U CN201820108707 U CN 201820108707U CN 207705865 U CN207705865 U CN 207705865U
- Authority
- CN
- China
- Prior art keywords
- resistance
- field
- effect tube
- circuit
- charging pile
- Prior art date
- 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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- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
Abstract
The utility model discloses a kind of charging pile circuits, including control circuit, one end of output end connection the resistance R1 and resistance R2 of the control circuit, the other end of the resistance R2 connects negative busbar and ground connection, it further include leadage circuit, the leadage circuit includes field-effect tube Q1, the grid of the field-effect tube Q1 connects the other end of the resistance R1, one end of the drain electrode connection aluminum casing resistor R3 of the field-effect tube Q1, the other end of the aluminum casing resistor R3 connects positive bus-bar, and the source electrode connection negative busbar of the field-effect tube Q1 is simultaneously connected and is grounded.The positive pole line voltage of the utility model is formed into a loop by aluminum casing resistor R3, field-effect tube Q1 and negative busbar, then so that loop current is formed heat consumption by aluminum casing resistor R3, reduces voltage.
Description
Technical field
The utility model is related to charging pile technical fields, more particularly to a kind of charging pile circuit.
Background technology
Direct-current charging post is socially more and more universal with the development of New Energy Industry, has in the design full
Sufficient safety standard, wherein there is a requirement：It will start bleed-off circuit, charging pile after terminating with charging after insulating monitoring
After carrying out IMD detections, it should timely release to charging output voltage, avoid generating cell load in the charging stage
Voltge surge, after charging, charger should in time release to charging output voltage, avoid causing electricity to operating personnel
Wound evil.
The parameter selection of charge circuit should be ensured that and drop to power supply interface voltage in 1s after charge connector disconnection
For 60VDC hereinafter, existing bleed-off circuit, positive and negative mother can be made by typically increasing an aluminum casing resistor and a contactor, contactor
Line voltage and aluminum casing resistor form circuit, to achieve the purpose that reduce voltage, but the contactor of external high voltage direct current specification,
Cost is excessively high.
Utility model content
The purpose of this utility model is to provide a kind of at low cost, simple charging pile circuits of circuit structure.
A kind of charging pile circuit disclosed by the utility model the technical solution adopted is that：A kind of charging pile circuit includes control
Circuit, one end of output end connection the resistance R1 and resistance R2 of the control circuit, the negative mother of other end connection of the resistance R2
Line and ground connection further include leadage circuit, and the leadage circuit includes field-effect tube Q1, and the grid of the field-effect tube Q1 connects institute
The other end of resistance R1 is stated, one end of the drain electrode connection aluminum casing resistor R3 of the field-effect tube Q1, the aluminum casing resistor R3's is another
One end connects positive bus-bar, and the source electrode of the field-effect tube Q1 connects negative busbar and ground connection.
Preferably, it is also associated with diode D1 between the field-effect tube Q1 and the positive bus-bar.
Preferably, the diode D1 anode connection positive bus-bar, the diode D1 cathode connection described in
The other end of aluminum casing resistor R3.
Preferably, the control circuit includes isolation optocoupler U1, and the emitter of the isolation optocoupler U1 connects institute
State one end of resistance R1 and resistance R2, the collector connection power supply VCC of the isolation optocoupler U1.
Preferably, the input terminal of the isolation optocoupler U1 is also associated with signal input circuit.
Preferably, the charging pile circuit further includes having the one end zener diode D2, the zener diode D2
The grid of the other end and field-effect tube Q1 of the resistance R1 is connected, the other end of the zener diode D2 connects the resistance
The source electrode of the other end of R2 and the field-effect tube Q1.
The utility model provides a kind of charging pile circuit, and control circuit exports electric signal driving resistance R1 by field-effect tube Q1
Conducting, positive pole line voltage are formed into a loop by aluminum casing resistor R3, field-effect tube Q1 and negative busbar, and loop current is by aluminum hull electricity
Heat is formed when hindering R3 to be consumed, and reduces loop voltage, the structure of this circuit is simple, and cost of parts is low.And according to just
Busbar and the voltage value of negative busbar, it is defined release the time, replace resistance value aluminum casing resistor R3 of different sizes, can be defined
It releases in the time, improves or reduce consumption when loop current passes through aluminum casing resistor R3, effectively reduce loop voltage, to
Reach the assigned voltage of charging pile.
Description of the drawings
Fig. 1 is the structural schematic diagram of the charging pile circuit of the utility model.
Specific implementation mode
The utility model is further elaborated and is illustrated with reference to specific embodiment and Figure of description：Please refer to figure
1, a kind of charging pile circuit, including control circuit, one end of output end connection the resistance R1 and resistance R2 of the control circuit, institute
The other end connection negative busbar of resistance R2 and ground connection are stated, further includes leadage circuit, the leadage circuit includes field-effect tube Q1, institute
The grid for stating field-effect tube Q1 connects the other end of the resistance R1, the drain electrode connection aluminum casing resistor R3's of the field-effect tube Q1
The other end of one end, the aluminum casing resistor R3 connects positive bus-bar, and the source electrode of the field-effect tube Q1 connects negative busbar and ground connection, institute
Stating in field-effect tube Q1 has diode.
It should be noted that when closing field-effect tube Q1, the charge of the grid storage of field-effect tube Q1 can lead to
It crosses resistance R2 to discharge in time, drop-down ground connection can also avoid driving end hanging when not start-up circuit.
The anode connection of diode D1, the diode D1 are also associated between the field-effect tube Q1 and the positive bus-bar
Positive bus-bar, the cathode of the diode D1 connect the other end of the aluminum casing resistor R3.When positive bus-bar and negative busbar reversal connection
It waits, diode D1 can prevent diode of the electric current out of field-effect tube Q1 from flowing counterflow through, make field-effect tube Q1 and aluminum casing resistor
R3 is not formed into a loop.
The control circuit includes isolation optocoupler U1.The emitter of the isolation optocoupler U1 connects the resistance R1 and resistance
One end of R2, the collector connection power supply VCC of the isolation optocoupler U1.The input terminal of the isolation optocoupler U1 is also associated with signal
Input circuit.Isolation optocoupler U1 can improve the anti-interference ability of circuit, and isolation optocoupler U1 is received from signal input circuit
The conducting of the phototriode of primary electronic signal and then isolation optocoupler U1, power supply VCC output electric signal driving resistance R1 then drivings
Field-effect tube Q1 conductings.
The charging pile circuit further includes having the one end zener diode D2, the zener diode D2 to connect the resistance R1
The other end and field-effect tube Q1 grid, the other end of the zener diode D2 connects the other end and the institute of the resistance R2
State the source electrode of field-effect tube Q1.Zener diode effectively raises the safety of circuit.
The utility model provides a kind of charging pile circuit, and control circuit exports electric signal driving resistance R1 by field-effect tube Q1
Conducting, positive pole line voltage are formed into a loop by aluminum casing resistor R3, field-effect tube Q1 and negative busbar, and loop circuit is by aluminum hull electricity
It forms heat when hindering R3 to be consumed, the structure of this circuit is simple, and cost of parts is low.And according to the electricity of positive bus-bar and negative busbar
Pressure value, it is defined release the time, replace resistance value aluminum casing resistor R3 of different sizes, can release in the time defined, will be electric
It is pressed in one second and drops to 60V, to reach the assigned voltage of charging pile.
Finally it should be noted that above example is only to illustrate the technical solution of the utility model, rather than to this reality
With the limitation of novel protected range, although being explained in detail to the utility model with reference to preferred embodiment, this field it is general
Lead to it will be appreciated by the skilled person that can be modified or replaced equivalently to the technical solution of the utility model, without departing from this
The spirit and scope of utility model technical solution.
Claims (6)
1. a kind of charging pile circuit, it is characterised in that：Including control circuit, the output end of the control circuit connects resistance（R1）
And resistance（R2）One end, the resistance（R2）Other end connection negative busbar and ground connection, further include leadage circuit, it is described to release
Circuit includes field-effect tube（Q1）, the field-effect tube（Q1）Grid connect the resistance（R1）The other end, field effect
Ying Guan（Q1）Drain electrode connect aluminum casing resistor（R3）One end, the aluminum casing resistor（R3）The other end connect positive bus-bar, it is described
Field-effect tube（Q1）Source electrode connection negative busbar and ground connection.
2. charging pile circuit as described in claim 1, it is characterised in that：The field-effect tube（Q1）Between the positive bus-bar
It is also associated with diode（D1）.
3. charging pile circuit as claimed in claim 2, it is characterised in that：The diode（D1）Anode connection positive bus-bar,
The diode（D1）Cathode connect the aluminum casing resistor（R3）The other end.
4. charging pile circuit as described in claim 1, it is characterised in that：The control circuit includes isolation optocoupler（U1）, institute
State isolation optocoupler（U1）Emitter connect the resistance（R1）And resistance（R2）One end, the isolation optocoupler（U1）Current collection
Pole connects power supply（VCC）.
5. charging pile circuit as claimed in claim 4, it is characterised in that：The isolation optocoupler（U1）Input terminal be also associated with
Signal input circuit.
6. charging pile circuit as described in claim 1, it is characterised in that：The charging pile circuit further includes having zener diode
（D2）, the zener diode（D2）One end connects the resistance（R1）The other end and field-effect tube（Q1）Grid, it is described
Zener diode（D2）The other end connect the resistance（R2）The other end and the field-effect tube（Q1）Source electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820108707.8U CN207705865U (en) | 2018-01-23 | 2018-01-23 | A kind of charging pile circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820108707.8U CN207705865U (en) | 2018-01-23 | 2018-01-23 | A kind of charging pile circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207705865U true CN207705865U (en) | 2018-08-07 |
Family
ID=63034429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820108707.8U Expired - Fee Related CN207705865U (en) | 2018-01-23 | 2018-01-23 | A kind of charging pile circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207705865U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111016731A (en) * | 2019-12-27 | 2020-04-17 | 山东元齐新动力科技有限公司 | Charging protection circuit, charging method of electric automobile and electric automobile |
-
2018
- 2018-01-23 CN CN201820108707.8U patent/CN207705865U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111016731A (en) * | 2019-12-27 | 2020-04-17 | 山东元齐新动力科技有限公司 | Charging protection circuit, charging method of electric automobile and electric automobile |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180807 Termination date: 20200123 |