CN212808458U

CN212808458U - Alternating current charging stake CP output and detecting system

Info

Publication number: CN212808458U
Application number: CN202021515638.6U
Authority: CN
Inventors: 牛传宇
Original assignee: Anhui Yuyang New Energy Technology Co Ltd
Current assignee: Anhui Yuyang New Energy Technology Co Ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-03-26
Anticipated expiration: 2030-07-28

Abstract

The utility model relates to an alternating current charging pile CP output and detection system, which comprises a control module and a CP output module, wherein the CP output module is connected with a voltage stabilizing module and a detection module in sequence, and the control module is respectively connected with the CP output module and the detection module; the detection module comprises a first detection module and a second detection module; the first detection module comprises a comparator U3A and a light emitting diode U4, and the second detection module comprises a comparator U3B and a light emitting diode U5; the input end of the comparator U3A is connected with the output end of the voltage stabilizing module, and the output end of the comparator U3A is connected with the input end of the light emitting diode U4; the input end of the comparator U3B is connected with the output end of the voltage stabilizing module, and the output end of the comparator U3B is connected with the input end of the light emitting diode U5. This alternating-current charging stake CP output and detecting system can effectual solution detect the problem of interference, separately independent utilization comparator circuit with every state detects, reduces the interference to the system.

Description

Alternating current charging stake CP output and detecting system

Technical Field

The utility model belongs to car fills the electric pile field, concretely relates to alternating-current charging stake CP output and detecting system.

Background

The traditional CP detection technology of the alternating current charging pile directly sends the adjusted CP input signal to an AD detection port, and the defects that the charging voltage is large, the detection of each state cannot be isolated, the interference to a detection system is large, the peak of the input PWM waveform after being filtered by 1KHZ can cause misjudgment on the detection system, and the system can mistakenly think that the charging state is achieved are overcome.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an alternating-current charging stake CP output and detecting system that simple structure, reasonable in design just lies in order to solve above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

the utility model provides an alternating-current charging stake CP output and detecting system, includes control module and CP output module, CP output module connects gradually voltage stabilizing module and detection module, control module respectively with CP output module and detection module connection.

As a further optimization scheme of the utility model, detection module includes first detection module and second detection module.

As a further optimization scheme of the utility model, the first detection module includes comparator U3A and emitting diode U4, the second detection module includes comparator U3B and emitting diode U5.

As a further optimization scheme of the utility model, the input of comparator U3A and the output of steady voltage module are connected, the output of comparator U3A and emitting diode U4's input are connected.

As a further optimization scheme of the utility model, the input of comparator U3B and the output of steady voltage module are connected, the output of comparator U3B and emitting diode U5's input are connected.

The beneficial effects of the utility model reside in that:

1) the utility model can effectively solve the problem of detection interference, and separately and independently detect each state by using the comparator circuit, thereby reducing the interference to the system;

2) the utility model provides a detection portion detects control signal's state, shows each state through the demonstration of LED lamp.

Drawings

Fig. 1 is a block diagram of the overall structure of the present invention;

FIG. 2 is a block diagram of the structure of the detection module of the present invention;

fig. 3 is an overall circuit diagram of the present invention;

fig. 4 is a waveform diagram of the output voltage of the CP output module according to the present invention;

FIG. 5 is a graph of the voltage waveform of the present invention connected to an uncharged state;

fig. 6 is a voltage waveform diagram of the connection and charging state of the present invention.

In the figure: 1. a CP output module; 2. a voltage stabilization module; 3. a detection module; 301. a first detection module; 302. and a second detection module.

Detailed Description

The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.

Example 1

As shown in fig. 1-6, an ac charging pile CP output and detection system includes a control module and a CP output module 1, the CP output module 1 is sequentially connected with a voltage stabilizing module 2 and a detection module 3, and the control module is respectively connected with the CP output module 1 and the detection module 3; the CP output module 1 includes an optocoupler chip U1, a chip U2, a resistor R2, a resistor R6, an NPN transistor Q1, a PNP transistor Q2, and a resistor R7 for voltage reduction, the model of the chip U1 is 6N173, and the model of the chip U2 is a 1212S;

the voltage stabilizing module 2 is used for receiving and adjusting the voltage signal output by the CP output module 1, the voltage stabilizing module 2 comprises a diode D1, a resistor R8, a resistor R9, a capacitor C1 and a resistor R12, the anode end of a diode D1 is connected with the output end of the CP output module 1, and the cathode end of a diode D1 is connected with one end of a resistor R8 in series; the other end of the resistor R8 is connected with the resistor R9, the capacitor C1 and the resistor R12;

the detection module 3 is used for receiving the voltage signals output by the voltage stabilizing module 2, comparing and judging the voltage signals and outputting voltage signals in different states; the detection module 3 comprises a first detection module 301 and a second detection module 302, when the voltage value range output by the voltage stabilizing module 2 is 7.3V-10V, the first detection module 301 is conducted, and when the voltage value of the voltage stabilizing module 2 is less than 7.3V, the second detection module 302 is conducted;

the first detection module 301 comprises a comparator U3A and a light emitting diode U4, and the second detection module 302 comprises a comparator U3B and a light emitting diode U5; the output state when the first detection module 301 is switched on is a state in which the charging port is connected and not charged, and the output state when the second detection module 302 is switched on is a state in which the charging port is connected and charged;

the control module is a singlechip J1, is in the prior art and is connected with an MCU (microprogrammed control Unit), and the MCU is connected with a chip U1;

when the MCU outputs 1kHZ PWM waveform to a chip U1 with the model of 6N137, when the input is low level, a pin 2 and a pin 3 on a chip U1 with the model of 6N137 are internally conducted, an internal circuit of the chip U1 is conducted by a Schmidt trigger triode, a VO pin of the 6N137 outputs low level, and a PNP triode Q2 is in a conducting state through a resistor R6 of 10R; when the voltage input into the chip U1 is at a high level, the inside of the pin 2 and the pin 3 of the 6N137 is not conducted, the schmitt trigger triode of the internal circuit of the 6N137 is not conducted, and the NPN type triode Q1 is in a conducting state through the resistor R2 of 4.7K; finally, after the voltage reduction processing of the resistor R7, the waveform diagram shown in FIG. 4 is output;

the waveform output from the 6N137 is processed by two trios and then output as shown in fig. 4, then is subjected to the function of unidirectional conduction of a diode D1 and can be filtered out as shown in fig. 5, and is subjected to voltage division of two 1K resistors R8 and R9 and filtering of a capacitor C1 to output a stable voltage value, when the conditioned voltage value is less than 10v and more than 7.3v, the regulated voltage value is output to a comparator U3A, at this time, the comparator U3A is conducted, a light emitting diode U4 of the circuit emits light, the state is that a charging port is connected but the charging state is not performed, and at this time, the MCU _ IO1 connected to the circuit obtains the waveform as shown in fig. 3; if the adjusted voltage value is less than 7.3v, the comparator U3B is turned on, the circuit on the comparator U3B is turned on, the light emitting diode U5 emits light, the state at this time is a connection state and a charging state, the MCU _ IO2 connected to the circuit obtains a waveform as shown in fig. 6, and the MCU _ IO1 and the MCU _ IO2 transmit state signals to the single chip microcomputer J1 and are processed by the single chip microcomputer J1;

compared with the traditional AD detection circuit, the detection module 3 can detect each state before and after charging more clearly, and greatly reduces the influence on the system;

the detection module 3 detects the state of the control signal, displays each state through the display of the LED lamp, and when the state is a connected and uncharged state, a charging switch of the charging circuit cannot be conducted, and an interface of the charging pile cannot charge the electric automobile; when the charging circuit is connected and in a charging state, the charging switch of the charging circuit is switched on, the charging interface charges the electric vehicle, and finally, signals in various states are output to the single chip microcomputer to be processed.

It should be noted that, when the voltage value output after the processing by the voltage stabilizing module 2 is greater than 10.3V, neither the comparator U3A nor the comparator U3B is turned on, and the state at this time is an idle state, and the state outputs a stable high level of + 12V.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. The utility model provides an alternating-current charging stake CP output and detecting system, includes control module and CP output module (1), its characterized in that: the CP output module (1) is sequentially connected with a voltage stabilizing module (2) and a detection module (3), and the control module is respectively connected with the CP output module (1) and the detection module (3).

2. The system of claim 1, wherein the system further comprises: the detection module (3) comprises a first detection module (301) and a second detection module (302).

3. The system of claim 2, wherein the system further comprises: the first detection module (301) comprises a comparator U3A and a light emitting diode U4, and the second detection module (302) comprises a comparator U3B and a light emitting diode U5.

4. The AC charging post CP outputting and detecting system according to claim 3, wherein: the input end of the comparator U3A is connected with the output end of the voltage stabilizing module (2), and the output end of the comparator U3A is connected with the input end of the light emitting diode U4.

5. The AC charging post CP outputting and detecting system according to claim 3, wherein: the input end of the comparator U3B is connected with the output end of the voltage stabilizing module (2), and the output end of the comparator U3B is connected with the input end of the light emitting diode U5.