CN217820724U - Circuit for detecting adhesion of charging pile relay and charging pile - Google Patents

Circuit for detecting adhesion of charging pile relay and charging pile Download PDF

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Publication number
CN217820724U
CN217820724U CN202221406503.5U CN202221406503U CN217820724U CN 217820724 U CN217820724 U CN 217820724U CN 202221406503 U CN202221406503 U CN 202221406503U CN 217820724 U CN217820724 U CN 217820724U
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circuit
relay
rectifying unit
detection
photoswitch
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朱立民
许斌
李加进
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Shanghai Zhida Technology Development Co ltd
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Shanghai Zhida Technology Ltd
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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
    • 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
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations

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Abstract

The utility model discloses a circuit of electric pile relay adhesion is filled in detection and electric pile is filled, wherein, the circuit of electric pile relay adhesion is filled in the detection, include: first detection circuitry, second detection circuitry and controller, wherein, first detection circuitry includes: the first light-operated switch is connected with the first light-operated switch; the second detection circuit includes: the second rectifying unit, the second photoswitch and the second pull-up resistor; the controller is respectively connected with the fourth end of the first light control switch, the fourth end of the second light control switch, the control end of the live wire relay and the control end of the zero wire relay. From this, through switching on or turn-off of controller control live wire relay, zero line relay, the different level signal of first detection circuitry and second detection circuitry output, whether the level signal that the controller passes through first detection circuitry and second detection circuitry output detects live wire relay, zero line relay adhesion. And then guaranteed the security of the charging process of filling electric pile.

Description

Circuit for detecting adhesion of charging pile relay and charging pile
Technical Field
The utility model relates to a fill electric pile technical field, especially relate to a circuit that detects and fill electric pile relay adhesion and fill electric pile.
Background
With the progress of science and technology and the shortage of energy, new energy vehicles are more popular. The electric pile that fills that follows is also more and more, and alternating-current charging stake controls zero line and live wire through the relay and charges electric automobile.
If the adhesion phenomenon appears in the relay that fills in the electric pile, unable disconnection output, the rifle that charges is electrified always, can endanger the personal safety.
SUMMERY OF THE UTILITY MODEL
The utility model provides a circuit of electric pile relay adhesion is filled in detection and electric pile is filled to use at the user and fill the electric pile in-process, detect the adhesion of the relay that fills electric pile, improve the charging safety nature.
According to the utility model discloses an aspect provides a circuit of electric pile relay adhesion is filled in detection, include:
a first detection circuit comprising: the first light-operated switch is connected with the first light-operated switch; the first end of the first rectifying unit is connected with the output end of the live wire relay, the second end of the first rectifying unit is connected with the output end of the zero wire relay, the third end of the first rectifying unit is connected with the first end of the first photoswitch, and the fourth end of the first rectifying unit is connected with the second end of the first photoswitch; the third end of the first light-operated switch is grounded, and the fourth end of the first light-operated switch is connected with one end of the first pull-up resistor; the other end of the first pull-up resistor is connected with a power supply;
a second detection circuit comprising: the second rectifying unit, the second photoswitch and the second pull-up resistor; the second end of the second rectifying unit is connected with the output end of the live wire relay, the first end of the second rectifying unit is grounded, the third end of the second rectifying unit is connected with the first end of the second photoswitch, and the fourth end of the second rectifying unit is connected with the second end of the second photoswitch; the third end of the second light-operated switch is grounded, and the fourth end of the second light-operated switch is connected with one end of the second pull-up resistor; the other end of the second pull-up resistor is connected with a power supply;
and the controller is respectively connected with the fourth end of the first light control switch, the fourth end of the second light control switch, the control end of the live wire relay and the control end of the zero line relay.
Optionally, the circuit of electric pile relay adhesion is filled in detection still includes: and one end of the first safety circuit is connected with the output end of the live wire relay, and the other end of the first safety circuit is connected with the first end of the first rectifying unit.
Optionally, the circuit of electric pile relay adhesion is filled in the detection still includes: and one end of the second safety circuit is connected with the output end of the live wire relay, and the other end of the second safety circuit is connected with the second end of the second rectifying unit.
Optionally, the circuit of electric pile relay adhesion is filled in the detection still includes: and one end of the first current limiting circuit is connected with the output end of the zero line relay, and the other end of the first current limiting circuit is connected with the second end of the first rectifying unit.
Optionally, the circuit of electric pile relay adhesion is filled in the detection still includes: and one end of the second current limiting circuit is connected with the first end of the second rectifying unit, and the other end of the second current limiting circuit is grounded.
Optionally, the circuit of electric pile relay adhesion is filled in detection still includes: and one end of the third current limiting circuit is connected with the third end of the first rectifying unit, and the other end of the third current limiting circuit is connected with the first end of the first light-operated switch.
Optionally, the circuit of electric pile relay adhesion is filled in the detection still includes: and one end of the fourth current limiting circuit is connected with the third end of the second rectifying unit, and the other end of the fourth current limiting circuit is connected with the first end of the second light-operated switch.
Optionally, the first rectifying unit and the second rectifying unit each include: the negative electrode of the first diode is connected with the negative electrode of the second diode to form a third end of the rectifying unit, the positive electrode of the first diode is connected with the negative electrode of the third diode to form a second end of the rectifying unit, the positive electrode of the third diode is connected with the positive electrode of the fourth diode to form a fourth end of the rectifying unit, and the negative electrode of the fourth diode is connected with the positive electrode of the second diode to form a first end of the rectifying unit.
Optionally, the first optical control switch and the second optical control switch are both optical coupling switches.
According to the utility model discloses an on the other hand still provides a fill electric pile, include any embodiment the detection fill the circuit of electric pile relay adhesion.
According to the utility model provides a circuit of electric pile relay adhesion is filled in detection and electric pile, wherein, the circuit of electric pile relay adhesion is filled in the detection, include: first detection circuitry, second detection circuitry and controller, wherein, first detection circuitry includes: the first light-operated switch is connected with the first light-operated switch; the first end of the first rectifying unit is connected with the output end of the live wire relay, the second end of the first rectifying unit is connected with the output end of the zero wire relay, the third end of the first rectifying unit is connected with the first end of the first photoswitch, and the fourth end of the first rectifying unit is connected with the second end of the first photoswitch; the third end of the first light-operated switch is grounded, and the fourth end of the first light-operated switch is connected with one end of a first pull-up resistor; the other end of the first pull-up resistor is connected with a power supply; the second detection circuit includes: the second rectifying unit, the second photoswitch and the second pull-up resistor; the second end of the second rectifying unit is connected with the output end of the live wire relay, the first end of the second rectifying unit is grounded, the third end of the second rectifying unit is connected with the first end of the second photoswitch, and the fourth end of the second rectifying unit is connected with the second end of the second photoswitch; the third end of the second light-operated switch is grounded, and the fourth end of the second light-operated switch is connected with one end of a second pull-up resistor; the other end of the second pull-up resistor is connected with a power supply; the controller is respectively connected with the fourth end of the first light control switch, the fourth end of the second light control switch, the control end of the live wire relay and the control end of the zero wire relay. From this, through switching on or shutting off of controller control live wire relay, zero line relay, the different level signal of first detection circuitry and second detection circuitry output, whether the controller detects live wire relay, zero line relay adhesion through the level signal of first detection circuitry and second detection circuitry output. And then guaranteed the security of the charging process of filling electric pile.
It should be understood that the statements herein are not intended to identify key or critical features of any embodiment of the present invention, nor are they intended to limit the scope of the invention. Other features of the present invention will be readily apparent from the following specification.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic diagram of a circuit for detecting adhesion of a charging pile relay according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a circuit for detecting adhesion of a charging pile relay according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a circuit for detecting adhesion of a charging pile relay according to another embodiment of the present invention;
fig. 4 is a schematic diagram of a circuit for detecting adhesion of a charging pile relay according to another embodiment of the present invention;
fig. 5 is a schematic diagram of a circuit for detecting adhesion of a charging pile relay according to still another embodiment of the present invention;
fig. 6 is a schematic diagram of a circuit for detecting adhesion of a charging pile relay according to another embodiment of the present invention;
fig. 7 is a schematic diagram of a circuit for detecting adhesion of a charging pile relay according to another embodiment of the present invention;
fig. 8 is a schematic diagram of a circuit for detecting the adhesion of the charging pile relay according to another embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein.
Fig. 1 is the embodiment of the utility model provides a detection fills the schematic diagram of the circuit of electric pile relay adhesion. As shown in fig. 1, this circuit 100 that detects the adhesion of charging pile relay includes:
a first detection circuit 200, comprising: a first rectifying unit 101, a first photoswitch 102, and a first pull-up resistor R1; a first end of the first rectifying unit 101 is connected to an output end of the live wire relay 110, a second end is connected to an output end of the zero wire relay 111, a third end is connected to a first end of the first photoswitch 102, and a fourth end is connected to a second end of the first photoswitch 102; the third end of the first light-operated switch 102 is grounded, and the fourth end is connected with one end of a first pull-up resistor R1; the other end of the first pull-up resistor R1 is connected with a power supply VDD;
a second detection circuit 300, comprising: a second rectifying unit 103, a second photoswitch 104, and a second pull-up resistor R2; a second end of the second rectifying unit 103 is connected to the output end of the live wire relay 110, a first end is grounded, a third end is connected to the first end of the second photoswitch 104, and a fourth end is connected to the second end of the second photoswitch 102; the third end of the second photoswitch 102 is grounded, and the fourth end is connected with one end of a second pull-up resistor R2; the other end of the second pull-up resistor R2 is connected with a power supply VDD;
and the controller 109 is connected with the fourth end of the first light control switch 102, the fourth end of the second light control switch 104, the control end of the live relay 110 and the control end of the neutral relay 111 respectively.
It should be noted that the controller 109 includes a first detection signal input terminal 106 and a second detection signal input terminal 108, the first detection circuit 200 includes a first detection signal output terminal 105, and the second detection circuit 300 includes a second detection signal output terminal 107, wherein the first detection signal input terminal 106 is connected to the first detection signal output terminal 105, and the second detection signal input terminal 108 is connected to the second detection signal output terminal 107.
It can be understood that, in the first detection circuit 200, after the first terminal and the second terminal of the first rectification unit 101 are both connected with the signal, the third terminal and the fourth terminal output the signal to the first terminal and the second terminal of the first optical control switch 102, after the first terminal and the second terminal are connected with the signal, the first optical control switch 102 is turned on, the fourth terminal of the first optical control switch 102 is pulled low, and the first detection signal output terminal 105 of the first detection circuit 200 outputs a low level. If one or both of the first end and the second end of the first rectifying unit 101 is not connected to the signal, the first end and the second end of the first optical switch 102 are not connected to the signal, the first optical switch 102 is turned off, the fourth end of the first optical switch 102 is pulled high, and the first detection signal output terminal 105 of the first detection circuit 200 outputs a high level.
In the second detection circuit 300, the first terminal of the second rectification unit 103 is grounded, after the second terminal is connected with a signal, the third terminal and the fourth terminal of the second rectification unit 103 output signals to the first terminal and the second terminal of the second photoswitch 104, after the first terminal and the second terminal are connected with signals, the second photoswitch 104 is turned on, the fourth terminal of the second photoswitch 104 is pulled low, and the second detection output terminal 107 of the second detection circuit 300 outputs a low level. If the second end of the second rectifying unit 103 does not receive the signal, the third end and the fourth end of the second rectifying unit 103 do not output the signal to the first end and the second end of the second optical switch 104, the second optical switch 104 is turned off, the level of the fourth end of the second optical switch 104 is pulled high, and the second detection output end 107 of the second detection circuit 300 outputs the high level.
Based on the principle of the detection circuit, the following detection processes are provided: after the charging is finished, the controller 109 controls the live wire relay 110 to be connected, if the second detection circuit 300 outputs a low level, the controller 109 controls the live wire relay 110 to be disconnected, if the second detection circuit 300 outputs a low level, it indicates that the live wire relay 110 is adhered, and if the second detection circuit 300 outputs a high level, it indicates that the live wire relay 110 is not adhered; under the condition that live wire relay 110 is not adhered, controller 109 controls live wire relay 110 to conduct, and zero line relay 111 to conduct, if first detection circuit 200 outputs low level, controller 109 controls zero line relay 111 to break, if first detection circuit 200 outputs low level, say that zero line relay 111 is adhered, if first detection circuit 200 outputs high level, say that zero line relay 111 is not adhered.
Wherein, controller 109 can control live wire relay 110 and switch on after the end of charging, if second detection circuitry 300 exports the high level, explains and fills electric pile trouble, can not charge, no longer detects the adhesion of zero line relay this moment.
In addition, after detecting that live wire relay 110 is not adhered, controller 109 controls live wire relay 110 to conduct, and controls zero line relay 111 to conduct, if first detection circuitry 200 outputs high level, it indicates that charging pile is out of order, and charging cannot be performed.
Optionally, as shown in fig. 2, the circuit 100 for detecting adhesion of the charging pile relay further includes: and one end of the first safety circuit is connected with the output end of the live wire relay 110, and the other end of the first safety circuit is connected with the first end of the first rectifying unit 101.
The first safety circuit comprises a first capacitor C1, one end of the first capacitor C1 is connected to the output end of the live wire relay 110, and the other end of the first capacitor C1 is connected to the first end of the first rectifying unit 101.
Optionally, as shown in fig. 3, the circuit 100 for detecting adhesion of the charging pile relay further includes: and one end of the second safety circuit is connected with the output end of the live wire relay 110, and the other end of the second safety circuit is connected with the second end of the second rectifying unit 103.
The second safety circuit includes a second capacitor C2, one end of the second capacitor C2 is connected to the output end of the live wire relay 110, and the other end of the second capacitor C2 is connected to the second end of the second rectifying unit 103.
First electric capacity C1 and second electric capacity C2 are the ann rule electric capacity, improve personnel's operating circuit's security.
Optionally, as shown in fig. 4, the circuit 100 for detecting adhesion of the charging pile relay further includes: and one end of the first current limiting circuit is connected with the output end of the zero line relay 111, and the other end of the first current limiting circuit is connected with the second end of the first rectifying unit 101.
The first current limiting circuit includes a first current limiting resistor R3, one end of the first current limiting resistor R3 is connected to the output end of the zero line relay 111, and the other end is connected to the second end of the first rectifying unit 101.
Optionally, as shown in fig. 5, the circuit 100 for detecting adhesion of the charging pile relay further includes: and one end of the second current limiting circuit is connected to the first end of the second rectifying unit 103, and the other end of the second current limiting circuit is grounded.
The second current limiting circuit includes a second current limiting resistor R4, one end of the second current limiting resistor R4 is connected to the first end of the second rectifying unit 103, and the other end is grounded.
Optionally, as shown in fig. 6, the circuit 100 for detecting adhesion of the charging pile relay further includes: and one end of the third current limiting circuit is connected to the third end of the first rectifying unit 101, and the other end of the third current limiting circuit is connected to the first end of the first light-operated switch 102.
The third current limiting circuit includes a third current limiting resistor R5, one end of the third current limiting resistor R5 is connected to the third end of the first rectifying unit 101, and the other end is connected to the first end of the first light-operated switch 102.
Optionally, as shown in fig. 7, the circuit 100 for detecting adhesion of the charging pile relay further includes: and one end of the fourth current limiting circuit is connected to the third end of the second rectifying unit 103, and the other end of the fourth current limiting circuit is connected to the first end of the second photoswitch 104.
The fourth current limiting circuit includes a fourth current limiting resistor R6, one end of the fourth current limiting resistor R6 is connected to the third end of the second rectifying unit 103, and the other end is connected to the first end of the second light-operated switch 104.
With continued reference to fig. 4 to 7, the first current limiting resistor R3 is used to protect the line between the zero line relay 111 and the first rectifying unit 101 from short circuit; the second current limiting resistor R4 is used for protecting a line between the ground terminals of the second rectifying unit 103 from short-circuiting; the third current limiting resistor R5 is used for protecting a short circuit between the first rectifying unit 101 and the first light-operated switch 102; the fourth current limiting resistor R6 is used to protect a short circuit between the second rectifying unit 103 and the second optical switch 104.
Alternatively, as shown in fig. 8, the first rectifying unit 101 and the second rectifying unit 103 each include: the rectifier comprises a first diode D1, a second diode D2, a third diode D3 and a fourth diode D4, wherein the cathode of the first diode D1 is connected with the cathode of the second diode D2 to form a third end of the rectifier unit, the anode of the first diode D2 is connected with the cathode of the third diode D3 to form a second end of the rectifier unit, the anode of the third diode D3 is connected with the anode of the fourth diode D4 to form a fourth end of the rectifier unit, and the cathode of the fourth diode D4 is connected with the anode of the second diode D2 to form a first end of the rectifier unit.
The first rectifying unit 101 and the second rectifying unit 103 convert an alternating current signal between the live relay 110 and the neutral relay 111 into a direct current signal, and output the direct current signal to the photoswitch.
Alternatively, as shown in fig. 8, the first and second photoswitches 102 and 104 are both opto-coupled switches.
That is, after the first optical switch 102 and the second optical switch 104 receive the signal at the input end, the switches are turned on by the activation light signal.
According to the utility model discloses an on the other hand has still provided a fill electric pile, include the utility model discloses any embodiment the circuit of electric pile relay adhesion is filled in detection.
To sum up, according to the utility model provides a circuit of electric pile relay adhesion is filled in detection and electric pile, wherein, the circuit of electric pile relay adhesion is filled in the detection, include: first detection circuitry, second detection circuitry and controller, wherein, first detection circuitry includes: the first light-operated switch is connected with the first light-operated switch; the first end of the first rectifying unit is connected with the output end of the live wire relay, the second end of the first rectifying unit is connected with the output end of the zero wire relay, the third end of the first rectifying unit is connected with the first end of the first photoswitch, and the fourth end of the first rectifying unit is connected with the second end of the first photoswitch; the third end of the first light-operated switch is grounded, and the fourth end of the first light-operated switch is connected with one end of a first pull-up resistor; the other end of the first pull-up resistor is connected with a power supply; the second detection circuit includes: the second rectifying unit, the second photoswitch and the second pull-up resistor; the first end of the second rectifying unit is connected with the output end of the live wire relay, the second end of the second rectifying unit is grounded, the third end of the second rectifying unit is connected with the first end of the second photoswitch, and the fourth end of the second rectifying unit is connected with the second end of the second photoswitch; the third end of the second light-operated switch is grounded, and the fourth end of the second light-operated switch is connected with one end of a second pull-up resistor; the other end of the second pull-up resistor is connected with a power supply; the controller is respectively connected with the fourth end of the first light control switch, the fourth end of the second light control switch, the control end of the live wire relay and the control end of the zero wire relay. From this, through switching on or turn-off of controller control live wire relay, zero line relay, the different level signal of first detection circuitry and second detection circuitry output, whether the level signal that the controller passes through first detection circuitry and second detection circuitry output detects live wire relay, zero line relay adhesion. And then guaranteed the security of the charging process of filling electric pile.
The above detailed description does not limit the scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made in accordance with design requirements and other factors. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides a circuit of electric pile relay adhesion is filled in detection which characterized in that includes:
a first detection circuit comprising: the first light-operated switch is connected with the first pull-up resistor; the first end of the first rectifying unit is connected with the output end of the live wire relay, the second end of the first rectifying unit is connected with the output end of the zero wire relay, the third end of the first rectifying unit is connected with the first end of the first photoswitch, and the fourth end of the first rectifying unit is connected with the second end of the first photoswitch; the third end of the first light-operated switch is grounded, and the fourth end of the first light-operated switch is connected with one end of the first pull-up resistor; the other end of the first pull-up resistor is connected with a power supply;
a second detection circuit comprising: the second rectifying unit, the second photoswitch and the second pull-up resistor; the second end of the second rectifying unit is connected with the output end of the live wire relay, the first end of the second rectifying unit is grounded, the third end of the second rectifying unit is connected with the first end of the second photoswitch, and the fourth end of the second rectifying unit is connected with the second end of the second photoswitch; the third end of the second light-operated switch is grounded, and the fourth end of the second light-operated switch is connected with one end of the second pull-up resistor; the other end of the second pull-up resistor is connected with a power supply;
and the controller is respectively connected with the fourth end of the first photoswitch, the fourth end of the second photoswitch, the control end of the live wire relay and the control end of the zero wire relay.
2. The circuit of detection stake relay adhesion of charging according to claim 1, further comprises: and one end of the first safety circuit is connected with the output end of the live wire relay, and the other end of the first safety circuit is connected with the first end of the first rectifying unit.
3. The circuit of detection stake relay adhesion of charging according to claim 1, further comprises: and one end of the second safety circuit is connected with the output end of the live wire relay, and the other end of the second safety circuit is connected with the second end of the second rectifying unit.
4. The circuit of detection stake relay adhesion of charging according to claim 1, further comprises: and one end of the first current limiting circuit is connected with the output end of the zero line relay, and the other end of the first current limiting circuit is connected with the second end of the first rectifying unit.
5. The circuit of detection stake relay adhesion of charging according to claim 1, further comprises: and one end of the second current limiting circuit is connected with the first end of the second rectifying unit, and the other end of the second current limiting circuit is grounded.
6. The circuit of detection stake relay adhesion of charging according to claim 1, further comprises: and one end of the third current limiting circuit is connected with the third end of the first rectifying unit, and the other end of the third current limiting circuit is connected with the first end of the first light-operated switch.
7. The circuit of detection stake relay adhesion of charging according to claim 1, further comprises: and one end of the fourth current limiting circuit is connected with the third end of the second rectifying unit, and the other end of the fourth current limiting circuit is connected with the first end of the second light-operated switch.
8. The circuit of claim 1, wherein the first rectifying unit and the second rectifying unit each comprise: the negative electrode of the first diode is connected with the negative electrode of the second diode to form a third end of the rectifying unit, the positive electrode of the first diode is connected with the negative electrode of the third diode to form a second end of the rectifying unit, the positive electrode of the third diode is connected with the positive electrode of the fourth diode to form a fourth end of the rectifying unit, and the negative electrode of the fourth diode is connected with the positive electrode of the second diode to form a first end of the rectifying unit.
9. The circuit of claim 1, wherein the first photoswitch and the second photoswitch are both optocouplers.
10. A charging post comprising a circuit for detecting adhesion of a charging post relay as claimed in any one of claims 1 to 9.
CN202221406503.5U 2022-06-07 2022-06-07 Circuit for detecting adhesion of charging pile relay and charging pile Active CN217820724U (en)

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CN202221406503.5U CN217820724U (en) 2022-06-07 2022-06-07 Circuit for detecting adhesion of charging pile relay and charging pile

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Application Number Priority Date Filing Date Title
CN202221406503.5U CN217820724U (en) 2022-06-07 2022-06-07 Circuit for detecting adhesion of charging pile relay and charging pile

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024140842A1 (en) * 2022-12-29 2024-07-04 长春捷翼汽车科技股份有限公司 Relay state detection circuit, and vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024140842A1 (en) * 2022-12-29 2024-07-04 长春捷翼汽车科技股份有限公司 Relay state detection circuit, and vehicle

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