CN215042208U

CN215042208U - Circuit for reducing standby power consumption of charging pile and charging pile

Info

Publication number: CN215042208U
Application number: CN202120863083.2U
Authority: CN
Inventors: 刘毓; 朱太平
Original assignee: Wanbang Digital Energy Co Ltd; Wanbang Star Charge Technology Co Ltd
Current assignee: Wanbang Digital Energy Co Ltd; Wanbang Star Charge Technology Co Ltd
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2021-12-07
Anticipated expiration: 2031-04-25

Abstract

The utility model discloses a reduce circuit and fill electric pile that fills electric pile stand-by power consumption, the circuit that reduces to fill electric pile stand-by power consumption includes CC1 signal acquisition circuit, switch circuit and rectifier circuit, through gathering the rifle CC1 signal line voltage that charges, switches on or shuts off according to magnitude of voltage control switch circuit to control rectifier circuit's input switches on or breaks off, realizes filling the circular telegram or the outage of electric pile inner circuit module. The utility model discloses can greatly reduce the stand-by power consumption who fills electric pile to reduce the waste of operation cost and electric energy.

Description

Circuit for reducing standby power consumption of charging pile and charging pile

Technical Field

The utility model relates to a reduce circuit that fills electric pile consumption belongs to electric automobile technical field that charges.

Background

The charging pile is a key device in the use of the electric automobile, and the operation management of the charging pile is directly related to the development of the whole electric automobile industry. Along with economic development, the use of electric motor car is popularized, and the quantity that fills electric pile sharply increases, and the operator has higher requirement to the stand-by power consumption who fills electric pile.

At present, the method adopted for reducing the standby power consumption of the charging pile is to add an alternating current contactor at the input end of a power module, and disconnect the input of the alternating current contactor and the input of the power module when the charging pile is not charged, but a circuit board, a switching power supply and other devices in the charging pile are still in a standby state. Under the industrial environment that the charging pile is rapidly increased, a better method is urgently needed to further reduce the standby power consumption of the charging pile.

Disclosure of Invention

The utility model aims to solve the technical problem that the reduction fills electric pile stand-by power consumption, reduces the expense that fills in the electric pile operation process.

In order to solve the technical problem, the utility model provides a circuit for reducing charging pile standby power consumption, its characterized in that includes CC1 signal acquisition circuit, switch circuit and rectifier circuit, the voltage of rifle CC1 signal line is filled in the collection of CC1 signal acquisition circuit, and when the CC1 signal line voltage value of gathering equals the standard voltage detection value when the rifle that charges inserts the vehicle completely, switch circuit switches on, otherwise switch circuit cuts off; the switching circuit is connected to the rectifying circuit, the on-off of the switching circuit controls the on-off of the input of the rectifying circuit, and the rectifying circuit is connected to a circuit module which needs front-end rectifying input in the charging pile.

Preferably, the CC1 signal acquisition circuit includes a resistor R26, an input filter circuit, an operational amplifier circuit, an output filter circuit, and an MCU, wherein the resistor R26 is connected in series or in parallel with a gun end resistor R2 and a vehicle end resistor R3, one end of the resistor R26 is connected to a +12V power supply voltage, the other end of the resistor R26 is connected to an input end of the input filter circuit, a charging gun CC1 signal line is also connected to an input end of the input filter circuit, an output end of the input filter circuit is connected to the operational amplifier circuit, the operational amplifier circuit amplifies a charging gun CC1 signal line voltage value and inputs the amplified voltage value to the MCU through the output filter circuit, the amplified value is compared with a standard voltage detection value when a charging gun is completely inserted into a vehicle, and the MCU outputs a control signal for controlling the switching circuit to be turned on or off according to a comparison result.

Preferably, the switching circuit is a relay.

Preferably, the input and output filter circuits are RC filter circuits.

Preferably, an anti-surge circuit is arranged between the output filter circuit and the MCU.

Preferably, the standard voltage detection value when the charging gun is fully inserted into the vehicle is 4V.

In order to solve the technical problem, the utility model discloses still provide and contain the above-mentioned circuit that fills electric pile stand-by power consumption that reduces and fill electric pile.

The utility model discloses a collection rifle CC1 signal line voltage that charges switches on or cuts off according to the magnitude of voltage value control switch circuit of gathering to control rectifier circuit's input switches on or breaks off, realizes filling the circular telegram or the outage of electric pile inner circuit module. The utility model discloses can greatly reduce the stand-by power consumption who fills electric pile to reduce the waste of operation cost and electric energy.

Drawings

FIG. 1 is a block diagram of a circuit for reducing standby power consumption of a charging pile;

FIG. 2 is a schematic diagram of a CC1 signal acquisition circuit;

fig. 3 is a circuit operation flow diagram for reducing the standby power consumption of the charging pile.

Detailed Description

The present invention will be described in further detail with reference to specific examples.

Example one

As shown in fig. 1, the present embodiment provides a circuit for reducing standby power consumption of a charging pile, which includes a CC1 signal acquisition circuit 1, a switch circuit 2, and a rectification circuit 3. The CC1 signal acquisition circuit 1 is used for gathering the rifle CC1 signal line voltage that charges, and the voltage magnitude control switch circuit 2 that gathers switches on or cuts off. The switch circuit 2 is connected to the rectifying circuit 3, and the rectifying circuit 3 is connected to a circuit module which needs front-end rectifying input in the charging pile, such as a charging pile internal circuit board, an off-board charger controller and the like. The CC1 signal acquisition circuit 1 and the rectification circuit 3 are powered by a power module of the charging pile. Switch circuit 2 connects between the power module and the rectifier circuit 3 of filling electric pile, and the switching on or shutoff of CC1 signal acquisition circuit 1 control switch circuit 2, and switching on or shutoff control of switch circuit 2 fills the intercommunication or the disconnection of electric pile's power module and rectifier circuit 3, and control rectifier circuit 3's power input switches on or breaks off promptly to realize the switching on, the outage of corresponding circuit module.

Taking national standard GB/T18487.1-2015 as an example, when the charging gun is partially inserted into a vehicle socket, the voltage of a CC1 test point is 12V; when the charging gun is completely inserted into the vehicle socket, the voltage of the test point is 4V; the charging gun was not plugged into the vehicle socket and the test point voltage was 6V. When the charging gun is completely inserted into a vehicle socket, namely the voltage of CC1 is 4V, the output of the CC1 signal acquisition circuit enables the switching circuit to be conducted, and the input of a non-vehicle charger controller in the charging pile and the input of a front-end rectifying circuit of other circuit boards are conducted. When the voltage of the CC1 is other values, the output of the CC1 voltage acquisition board turns off the switch circuit, and no input is generated in a front-end rectifying circuit of an off-board charger controller and other circuits in the charging pile. Therefore, when the circuit is in a standby state, only the rectifying circuit and the CC1 signal acquisition circuit at the front end are in the standby state, and all control loops at the rear end are in a power-off state, so that the aim of reducing standby power consumption is fulfilled.

The switching circuit can be realized by controllable switching devices, such as mechanical switches like relays, and electronic switches like switching tubes. As shown in fig. 2, the switching circuit of the present embodiment is implemented by using a relay K1, and the CC1 signal acquisition circuit includes a resistor R26, an input filter circuit, an operational amplifier circuit, an output filter circuit, and an MCU. The resistor R26, the gun end resistor R2 and the vehicle end resistor R3 (the gun end resistor R2 and the vehicle end resistor R3 are two resistors in the national standard, are all 1K resistors and belong to the prior art) are connected in series and in parallel respectively, one end of the resistor R26 is connected with +12V power voltage, and the other end of the resistor R26 is connected to the input end of the input filter circuit. The charging gun CC1 signal line is also connected to the input end of the input filter circuit, and the output end of the input filter circuit is connected to the operational amplifier circuit. The input filter circuit is composed of a resistor R28 and a capacitor C14. The operational amplifier circuit mainly comprises an operational amplifier U101A, wherein a charge gun CC1 signal after filtering is input to a non-inverting input end of the operational amplifier, the line voltage value of a charge gun CC1 signal line is amplified, then the amplified signal is input to an MCU (U1 in the figure) through an output filter circuit consisting of a resistor R25 and a capacitor C13 to be subjected to AD conversion, the AD conversion is compared with a standard voltage detection value when the charge gun is completely inserted into a vehicle, and according to a comparison result, the MCU outputs a control signal for controlling the on or off of a relay K1. In the figure, diodes D6 and D7 are transient suppression diodes, constitute an anti-surge circuit, and are used for suppressing the transient surge of 12V voltage and protecting the MCU.

The working flow of the circuit for reducing the standby power consumption of the charging pile is shown in fig. 3, a voltage jump of 6V- >12V- >6V- >4V occurs in a charging gun CC1 signal, and when the voltage of the signal is detected to be 4V, the MCU pulls down the K _ EL 1. K _ EL1 is connected to the one end of relay K1's coil, makes relay K1 go up the electricity closed, fills the power module and the rectifier circuit 3 intercommunication of electric pile, and rectifier circuit 3's input switches on, begins the flow of charging, for filling the interior other circuit module power supplies who is connected with rectifier circuit 3 of electric pile. When the signal voltage is detected to be not 4V, the MCU pulls the K _ EL1 high, so that the relay K1 is disconnected, the power supply module of the charging pile is disconnected with the rectifying circuit 3, the input of the rectifying circuit 3 is disconnected, and other circuit modules connected with the rectifying circuit 3 in the charging pile are in a power-off state.

Example two

The embodiment provides a charging pile, which comprises the circuit for reducing the standby power consumption of the charging pile of the first embodiment. The circuit for reducing the standby power consumption of the charging pile comprises a CC1 signal acquisition circuit 1, a switch circuit 2 and a rectification circuit 3. The CC1 signal acquisition circuit 1 is used for gathering the rifle CC1 signal line voltage that charges, and the voltage magnitude control switch circuit 2 that gathers switches on or cuts off. The switch circuit 2 is connected to the rectifying circuit 3, and the rectifying circuit 3 is connected to a circuit module which needs front-end rectifying input in the charging pile, such as a charging pile internal circuit board, an off-board charger controller and the like. CC1 signal acquisition circuit 1, rectifier circuit 3 are supplied power by the power module who fills electric pile, and switch circuit 2 connects between the power module who fills electric pile and rectifier circuit 3. The CC1 signal acquisition circuit 1 controls the switch-on or switch-off of the switch circuit 2, the switch-on or switch-off of the switch circuit 2 controls the connection or disconnection of the power module of the charging pile and the rectifying circuit 3, namely, the power input of the rectifying circuit 3 is controlled to be connected or disconnected, and therefore the connection and disconnection of the corresponding circuit module are achieved.

The circuit that above-mentioned reduction was filled electric pile stand-by power consumption can be integrated inside filling the electric pile body, also can set up in filling the electric pile body outside. Fill electric pile than tradition, the utility model provides a fill electric pile when the standby, only rectifier circuit 3 and the CC1 signal acquisition circuit 1 department of front end are in standby state, and all control circuit of rear end all are in the outage state, so reach the purpose that reduces standby power consumption, have outstanding energy-conserving effect.

Claims

1. A circuit for reducing the standby power consumption of a charging pile is characterized by comprising a CC1 signal acquisition circuit, a switching circuit and a rectifying circuit, wherein the CC1 signal acquisition circuit acquires the voltage of a CC1 signal line of a charging gun, when the acquired voltage value of the CC1 signal line is equal to a standard voltage detection value when the charging gun is completely inserted into a vehicle, the switching circuit is switched on, otherwise, the switching circuit is switched off; the switching circuit is connected to the rectifying circuit, the on-off of the switching circuit controls the on-off of the input of the rectifying circuit, and the rectifying circuit is connected to a circuit module which needs front-end rectifying input in the charging pile.

2. The circuit for reducing the standby power consumption of the charging pile according to claim 1, wherein the CC1 signal acquisition circuit comprises a resistor R26, an input filter circuit, an operational amplifier circuit, an output filter circuit and an MCU, the resistor R26, the gun end resistor R2 and the vehicle end resistor R3 are connected in series and in parallel respectively, one end of the resistor R26 is connected with +12V power voltage, the other end of the resistor R26 is connected with the input end of the input filter circuit, the charging gun CC1 signal line is also connected to the input end of the input filter circuit, the output end of the input filter circuit is connected to the operational amplifier circuit, the operational amplifier circuit amplifies the voltage value of the charging gun CC1 signal line and inputs the amplified voltage value into the MCU through the output filter circuit, and compared with a standard voltage detection value when the charging gun is completely inserted into the vehicle, the MCU outputs a control signal for controlling the switch-on or switch-off of the switch circuit according to a comparison result.

3. The circuit for reducing the standby power consumption of a charging pile according to claim 1, wherein the switching circuit is a relay.

4. The circuit for reducing standby power consumption of a charging pile of claim 1, wherein the input and output filter circuits are RC filter circuits.

5. The circuit for reducing the standby power consumption of the charging pile according to claim 2, wherein an anti-surge circuit is arranged between the output filter circuit and the MCU.

6. The circuit for reducing the standby power consumption of the charging pile according to claim 1, wherein the standard voltage detection value when the charging gun is fully inserted into the vehicle is 4V.

7. A charging pile comprising the circuit for reducing standby power consumption of the charging pile according to any one of claims 1 to 6.