CN216490538U - Fill electric pile communication control circuit - Google Patents
Fill electric pile communication control circuit Download PDFInfo
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- CN216490538U CN216490538U CN202122781755.8U CN202122781755U CN216490538U CN 216490538 U CN216490538 U CN 216490538U CN 202122781755 U CN202122781755 U CN 202122781755U CN 216490538 U CN216490538 U CN 216490538U
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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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- 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
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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
- 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 communication control circuit of a charging pile, which comprises: the power supply module is used for providing power supply for the communication control circuit; the control module is used for generating and sending a control signal; the output end of the communication processing module is connected with the CAN bus, and the input end of the communication processing module is connected with the control module and used for receiving and sending control signals; and the signal isolation module is connected between the communication processing module and the control module and is used for isolating the communication signals between the control module and the CAN bus. Utilize high-speed opto-coupler and CAN bus transceiver to realize keeping apart the receiving and dispatching to filling electric pile CAN, solve ISO1050D and take the problem that the isolation chip supply is nervous, purchasing cost is high.
Description
Technical Field
The utility model relates to a charging pile, in particular to a communication control circuit of the charging pile.
Background
A can (controller Area network) bus, i.e., a controller Area network bus, is a serial communication network that effectively supports distributed control or real-time control. Due to high performance and high reliability, the CAN bus is widely applied to the fields of medical instruments, vehicles and the like, and the CAN bus is widely used as a microcontroller communication bus of an automobile on the current new energy automobile.
In order to stabilize the operation of the equipment, the power supply between the equipment IS isolated, the communication between the equipment also needs to be isolated, because the CAN transceiver mostly adopted by the direct current charging pile 'TCU fee control unit' IS provided with an isolation chip by ISO1050D, and because of the limitation of foreign countries to domestic export chips, the purchase cost of the IS01050D provided with the isolation chip IS high, the supply IS tense, and therefore other CAN communication isolation modes which are low in cost and easy to implement need to be adopted.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a communication control circuit of a charging pile, which is low in cost and easy to realize.
The utility model is realized by the following technical measures, comprising the following steps:
the power supply circuit is used for providing power supply for the communication control circuit;
the control module is used for generating and sending a control signal;
the output end of the communication processing module is connected with the CAN bus, and the input end of the communication processing module is connected with the control module and used for receiving and sending control signals;
and the signal isolation module is connected between the communication processing module and the control module and used for isolating the communication signals between the control module and the CAN bus.
As a preferred mode, the CAN bus communication device comprises an anti-interference module, wherein the anti-interference module is connected between the communication processing module and the CAN bus.
Preferably, the interference rejection module includes a common mode inductor.
As a preferable mode, the signal isolation module includes an optical coupler, the signal output end of the control module is connected to the communication processing module through an optical coupler, and the signal input end of the control module is connected to the communication processing module through another optical coupler.
As a preferable mode, the power supply circuit includes a power supply module, which is used for isolating the power supply input of the communication control circuit.
Preferably, the power supply module is a power supply module of model B0505LS-1WR 2.
Preferably, the communication processing module is a CAN bus transceiver of model NCV751D10R 2G.
According to the charging pile communication control circuit, CANH and CANL of a CAN bus transceiver are connected with high-level and low-level pins of a CAN bus, are compared by a comparator in the CAN bus transceiver and then are transmitted to a control module through a high-speed optical coupler, and CAN sends a control signal to the control module and then the control signal is output through the CANH and CANL through the CAN bus by the high-speed optical coupler; utilize high-speed opto-coupler and CAN bus transceiver to realize keeping apart the receiving and dispatching to filling electric pile CAN, solve IS01050D and take the problem that the isolation chip supply IS nervous, purchasing cost IS high.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a circuit schematic of an embodiment of the present invention;
fig. 3 is a schematic diagram of an internal structure of a CAN bus transceiver according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings.
A charging pile communication control circuit, referring to fig. 1 to 3, comprising:
the power supply module is used for providing power supply for the communication control circuit;
the control module is used for generating and sending a control signal;
the output end of the communication processing module is connected with the CAN bus, and the input end of the communication processing module is connected with the control module and used for receiving and sending control signals;
and the signal isolation module is connected between the communication processing module and the control module and is used for isolating the communication signals between the control module and the CAN bus.
The control module is a singlechip used by the charging pile; the communication processing module is a CAN bus transceiver U6 with the model number NCV751D10R2G, and the communication speed is 1 Mbit/s; the signal isolation module comprises an optical coupler, specifically a high-speed optical coupler of 6N137S, and the optical coupler communication speed reaches 10 Mbit/s;
specifically, the power circuit is externally connected with a 5V power supply and comprises a power module, a power module and a capacitor C56, wherein the power module is used for isolating the power input of the communication control circuit, the model of the power module is B0505LS-1WR2, the VIN pin of the power module is connected with the 5V power supply and is grounded by being connected with the capacitor C58 in parallel, and the GND pin of the power module is grounded; the V0 pin of the power module is grounded; the VO + pin of the power module outputs a voltage and is connected in parallel with the capacitor C59 through a capacitor C60 to ground.
Further, the CAN bus anti-interference module is a common-mode inductor L1 and is connected between the communication processing module and the CAN bus, a CAN1H of the CAN bus is connected with a pin 1 of the common-mode inductor L1 through a resistor R15, a CAN1L is connected with a pin 4 of the common-mode inductor through a resistor R23, a pin 2 of the common-mode inductor L1 is connected with a CANH pin of a CAN bus transceiver U6, and a pin 3 of the L1 is connected with a CANL pin of a CAN bus transceiver U6;
the pin 1 of the common mode inductor L1 is grounded through the transient suppression diode D1, and the pin 3 of the common mode inductor L1 is grounded through the transient suppression diode D3, so that the circuit is protected from being damaged by surge pulses.
The TX pin of the control module is connected with the CAT pin of the optical coupler U9 through a resistor R28; the TX pin of the control module is grounded through a capacitor C19; the AN pin of the optical coupler U9 is connected with one end of a resistor R25; the other end of the resistor R25 and a VCC pin of the optocoupler U4 are connected with a 3.3V power supply and are grounded and decoupled through a capacitor C14; the VO pin of the optical coupler U4 is connected with the VO + of the power module through a resistor R27, and the VO pin of the optical coupler U4 is connected with the RXD pin of the CAN bus transceiver U6; the RXD pin of the CAN bus transceiver U6 is grounded through a capacitor C25;
an RX pin of the control module is connected with a VO pin of the optical coupler U4 through a resistor R12; the RX pin of the control module is grounded and decoupled through a capacitor C13; AN AN pin of the optical coupler U4 is connected with a VCC pin of the optical coupler U9 and a VCC pin of the CAN bus transceiver U6 through a resistor R18 to VO + of the power module; a VCC pin of the optical coupler U9 and a VCC pin of the CAN bus transceiver U6 are connected with a capacitor C20 and a capacitor C18 and a capacitor C16 which are connected with the ground; the CAT pin of the optocoupler U4 is connected with the RXD pin of the CAN bus transceiver U6, and the RXD pin of the CAN bus transceiver U6 is connected with the VO + of the power module through a resistor R61.
The GND pin of the optical coupler U4, the GND pin of the optical coupler U9, the GND pin of the CAN bus transceiver U6 and the S pin of the CAN bus transceiver U6 are grounded, and the NC pin of the CAN bus transceiver U6 is connected with the VO + of the power module through a resistor R130.
The working principle of the communication control circuit is as follows: CANH and CANL of the CAN bus transceiver are connected with high-level and low-level pins of the CAN bus, as shown in FIG. 3, the high-level and low-level pins are compared by a COMP comparator in the CAN bus transceiver and then transmitted to the CONTROL module through the high-speed optical coupler, and the CAN transceiver sends a CONTROL signal to the CONTROL module and outputs the CONTROL signal through the TIMER TIMER and DRIVER CONTROL in the CAN bus transceiver through the CANH and CANL by the high-speed optical coupler; utilize high-speed opto-coupler and CAN bus transceiver to realize filling electric pile CAN and keep apart receiving and dispatching, solve ISO1050D and keep apart the problem that chip supply is nervous, purchasing cost is high.
The charging pile communication control circuit of the present invention is described above for facilitating understanding of the present invention, but the implementation manner of the present invention is not limited by the above-mentioned embodiments, and any changes, modifications, substitutions, combinations, and simplifications that do not depart from the principle of the present invention shall be equivalent substitutions, and shall fall within the protection scope of the present invention.
Claims (7)
1. A fill electric pile communication control circuit, characterized by includes:
the power supply circuit is used for providing power supply for the communication control circuit;
the control module is used for generating and sending a control signal;
the output end of the communication processing module is connected with the CAN bus, and the input end of the communication processing module is connected with the control module and used for receiving and sending control signals;
and the signal isolation module is connected between the communication processing module and the control module and used for isolating the communication signals between the control module and the CAN bus.
2. The charging pile communication control circuit of claim 1, comprising an anti-jamming module, wherein the anti-jamming module is connected between the communication processing module and the CAN bus.
3. The charging pile communication control circuit of claim 2, wherein the interference rejection module comprises a common mode inductor.
4. The charging pile communication control circuit of claim 1, wherein the signal isolation module comprises an optical coupler, a signal output end of the control module is connected with the communication processing module through an optical coupler, and a signal input end of the control module is connected with the communication processing module through another optical coupler.
5. The charging pile communication control circuit of claim 1, wherein the power circuit comprises a power module for isolating a power input of the communication control circuit.
6. The charging pile communication control circuit of claim 5, wherein the power module is a power module of model B0505LS-1WR 2.
7. The charging pile communication control circuit as claimed in any one of claims 1-6, wherein the communication processing module is a CAN bus transceiver of model NCV751D10R 2G.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122781755.8U CN216490538U (en) | 2021-11-12 | 2021-11-12 | Fill electric pile communication control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122781755.8U CN216490538U (en) | 2021-11-12 | 2021-11-12 | Fill electric pile communication control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216490538U true CN216490538U (en) | 2022-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122781755.8U Active CN216490538U (en) | 2021-11-12 | 2021-11-12 | Fill electric pile communication control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216490538U (en) |
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2021
- 2021-11-12 CN CN202122781755.8U patent/CN216490538U/en active Active
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