阅读说明：本技术 一种充电桩计量校验装置 (Fill electric pile measurement calibration equipment ) 是由 卜鹏华 荀可可 于 2019-11-19 设计创作，主要内容包括：本发明涉及一种充电桩计量校验装置,该充电桩计量校验装置,包括充电桩主体和控制器,所述充电桩主体连接控制器,控制器包括MCU、存储模块、通信模块、功率计量模块、模数转换器、电流测量模块和电压测量模块,其中MCU与存储模块和通信模块双向连接；电流测量模块和电压测量模块均连接充电桩主体,检测充电桩主体充电电流和充电电压,电流测量模块和电压测量模块的信号输出端均连接模数转换器的模拟信号输入端,模数转换器的数字信号输出端分为两路,一路输入到功率计量单元,另一路输入到MCU,功率计量单元的信号输出端连接MCU的信号输入端；本发明能够对充电桩功率计量进行校验,并连接远程服务器辅助计算,得到准确的计算数据。(The invention relates to a charging pile metering and checking device which comprises a charging pile main body and a controller, wherein the charging pile main body is connected with the controller, the controller comprises an MCU (microprogrammed control unit), a storage module, a communication module, a power metering module, an analog-to-digital converter, a current measuring module and a voltage measuring module, and the MCU is bidirectionally connected with the storage module and the communication module; the current measuring module and the voltage measuring module are connected with the charging pile main body and used for detecting charging current and charging voltage of the charging pile main body, the signal output ends of the current measuring module and the voltage measuring module are connected with the analog signal input end of the analog-to-digital converter, the digital signal output end of the analog-to-digital converter is divided into two paths, one path is input into the power metering unit, the other path is input into the MCU, and the signal output end of the power metering unit is connected with the signal input end of the MCU; the method and the device can verify the power measurement of the charging pile and connect a remote server for auxiliary calculation to obtain accurate calculation data.)

1. The utility model provides a fill electric pile measurement calibration equipment which characterized in that: the charging pile comprises a charging pile body and a controller, wherein the charging pile body is connected with the controller, the controller comprises an MCU (microprogrammed control unit), a storage module, a communication module, a power metering module, an analog-to-digital converter, a current measuring module and a voltage measuring module, the MCU is bidirectionally connected with the storage module and the communication module, and the communication module is connected with an external remote server through a network;

the current measuring module and the voltage measuring module are connected with the charging pile main body and used for detecting charging current and charging voltage of the charging pile main body, the signal output ends of the current measuring module and the voltage measuring module are connected with the analog signal input end of the analog-to-digital converter, the digital signal output end of the analog-to-digital converter is divided into two paths, one path is input into the power metering unit, the other path is input into the MCU, and the signal output end of the power metering unit is connected with the signal input end of the MCU; current analog signals and voltage analog signals of the current measuring module and the voltage measuring module are converted into current digital signals and voltage digital signals through an analog-to-digital converter, the current digital signals and the voltage digital signals are respectively sent into the independent power metering unit and the MCU to carry out power calculation, the MCU compares and verifies results of the two calculations, if the verification is carried out under the condition that the results are different, data are uploaded to a remote server, the remote server calculates and transmits the result data to the MCU, and the accuracy of metering is guaranteed.

2. The charging pile metering and checking device according to claim 1, characterized in that: the MCU is connected with a power supply through a power circuit.

3. The charging pile metering and checking device according to claim 1, characterized in that: MCU still connects outside pressure measurement, and pressure measurement sets up in filling electric pile outlying subaerial.

4. The charging pile metering and checking device according to claim 1, characterized in that: the MCU is also connected with an external display module and a key module.

5. The charging pile metering and checking device according to claim 1, characterized in that: the charging pile main body is connected with a charging gun, and the charging gun is matched with an automobile charging port through a self-locking device;

the front end of the charging gun is provided with a charging head matched with a charging port of an automobile, the charging head is provided with a self-locking device, the self-locking device comprises a cylindrical part, a circular table block, a socket, a self-locking plate and a linear driving mechanism, the cylindrical part is fixedly arranged at the front end of the charging head, the circular table block is arranged inside the cylindrical part, the periphery of the circular table block is provided with a sliding groove arranged along a generatrix of the circular table block, the sliding groove is connected with the self-locking plate in a sliding manner, the inner end of the self-locking plate is provided with a sliding block matched with the sliding groove, the outer end of the self-locking plate is inserted into a strip-shaped hole in the cylindrical part, the inner wall of the charging port of the automobile is provided with a locking groove matched;

the front end of the round table block is fixedly provided with a socket, and the socket is provided with a jack matched with a contact pin in the automobile charging port.

6. The charging pile metering and checking device according to claim 5, wherein: the linear driving mechanism comprises a screw rod motor and a screw rod pair, an output shaft of the screw rod motor is connected with the rear end of a screw rod of the screw rod pair through a coupler, and a screw rod nut of the screw rod pair is fixedly connected with a push rod.

7. The charging pile metering and checking device according to claim 5, wherein: and the outer wall of the cylindrical part is also provided with a contact switch, and the contact switch is connected with a signal input end of the MCU.

8. The charging pile metering and checking device according to claim 5, wherein: the cross section of the sliding groove is T-shaped.

Technical Field

The invention belongs to the technical field of charging piles, and particularly relates to a charging pile metering and checking device.

Background

The new energy automobile comprises a pure electric automobile, a range-extended electric automobile, a hybrid electric automobile, a fuel cell electric automobile, a hydrogen engine automobile, other new energy automobiles and the like.

Pure electric vehicle

A pure Electric vehicle (BEV) is an automobile using a single storage battery as an energy storage power source, and the storage battery is used as the energy storage power source, and the battery supplies Electric energy to a motor to drive the motor to run, so as to drive the automobile to run.

Hybrid electric vehicle

A Hybrid Electric Vehicle (HEV) refers to a Vehicle in which a drive system is combined by two or more single drive trains capable of operating simultaneously, and the running power of the Vehicle is provided by the single drive train or by multiple drive trains together according to the actual running state of the Vehicle. Hybrid vehicles come in a variety of forms due to differences in various component parts, arrangements, and control strategies.

Fuel cell electric automobile

Fuel Cell Electric Vehicles (FCEV) are vehicles driven by using hydrogen gas and oxygen in the air under the action of a catalyst, and Electric energy generated by an electrochemical reaction in a Fuel Cell is used as a main power source. The fuel cell electric vehicle is essentially one of pure electric vehicles, and the main difference lies in the different working principles of the power battery. Generally, a fuel cell converts chemical energy into electrical energy through an electrochemical reaction, a reducing agent required by the electrochemical reaction generally adopts hydrogen, and an oxidizing agent adopts oxygen, so most of the originally developed fuel cell electric vehicles directly adopt hydrogen fuel, and the hydrogen can be stored in the forms of liquefied hydrogen, compressed hydrogen or metal hydride hydrogen storage.

Hydrogen engine automobile

The hydrogen engine automobile is an automobile using a hydrogen engine as a power source. Typically the fuel used in the engine is diesel or gasoline and the fuel used in the hydrogen engine is gaseous hydrogen. The hydrogen engine automobile is a vehicle which really realizes zero emission, discharges pure water, and has the advantages of no pollution, zero emission, rich reserve and the like.

Other new energy automobile

Other new energy vehicles include vehicles that use high efficiency energy storage devices such as supercapacitors, flywheels, and the like. At present, in China, new energy automobiles mainly refer to pure electric automobiles, extended range electric automobiles, plug-in hybrid electric automobiles and fuel cell electric automobiles, and conventional hybrid electric automobiles are classified as energy-saving automobiles.

Electric power is the main energy supply mode of new energy automobile, fills electric pile its function and is similar to the tanker aircraft inside the filling station, can fix on ground or wall, installs in public building (public building, market, public parking area etc.) and residential area parking area or charging station, can charge for the electric automobile of various models according to different voltage classes. The input end of the charging pile is directly connected with an alternating current power grid, and the output end of the charging pile is provided with a charging plug for charging the electric automobile.

Disclosure of Invention

The invention aims to solve the problems and provide a charging pile metering and checking device with accurate metering.

The invention realizes the purpose through the following technical scheme:

a charging pile metering and checking device comprises a charging pile main body and a controller, wherein the charging pile main body is connected with the controller, the controller comprises an MCU (microprogrammed control unit), a storage module, a communication module, a power metering module, an analog-to-digital converter, a current measuring module and a voltage measuring module, the MCU is bidirectionally connected with the storage module and the communication module, and the communication module is connected with an external remote server through a network;

the current measuring module and the voltage measuring module are connected with the charging pile main body and used for detecting charging current and charging voltage of the charging pile main body, the signal output ends of the current measuring module and the voltage measuring module are connected with the analog signal input end of the analog-to-digital converter, the digital signal output end of the analog-to-digital converter is divided into two paths, one path is input into the power metering unit, the other path is input into the MCU, and the signal output end of the power metering unit is connected with the signal input end of the MCU; current analog signals and voltage analog signals of the current measuring module and the voltage measuring module are converted into current digital signals and voltage digital signals through an analog-to-digital converter, the current digital signals and the voltage digital signals are respectively sent into the independent power metering unit and the MCU to carry out power calculation, the MCU compares and verifies results of the two calculations, if the verification is carried out under the condition that the results are different, data are uploaded to a remote server, the remote server calculates and transmits the result data to the MCU, and the accuracy of metering is guaranteed.

As a further optimization scheme of the invention, the MCU is connected with a power supply through a power supply circuit. The power supply circuit converts the power supply to supply energy.

As a further optimization scheme of the invention, the MCU is also connected with an external pressure detection device, and the pressure detection device is arranged on the ground at the periphery of the charging pile. The pressure generated when the automobile moves to the charging position is detected, and a measure for avoiding no-load operation is added.

As a further optimization scheme of the invention, the MCU is also connected with an external display module and a key module. For display and key entry.

As a further optimization scheme of the invention, the charging pile main body is connected with a charging gun, and the charging gun is matched with an automobile charging port through a self-locking device;

the front end of rifle charges is equipped with the head that charges with the car mouth complex that charges, it is overhead to charge to be equipped with self-lock device, self-lock device includes the cylindric section, the platform piece, the socket, from locking plate and linear drive mechanism, the cylindric section is fixed to be located the front end of charging the head, the inside of cylindric section is equipped with the platform piece, the periphery of platform piece is equipped with the spout that sets up along its generating line, spout sliding connection is from the locking plate, the inner of locking plate is equipped with spout complex slider, it is downthehole from the bar of locking plate's outer end insertion cylindric section, be equipped with on the car mouth inner wall and from locking plate complex locked groove, the front end diameter of platform piece is less than the rear end diameter, the rear end fixed connection push. The linear driving mechanism pushes the circular table block to move linearly along the axial direction of the cylindrical part, and the circular table block extrudes the self-locking pieces on the periphery when moving forwards, extends out of the cylindrical part and is inserted into the locking groove on the inner wall of the charging port of the automobile, so that the charging head and the charging port of the automobile are fixedly connected through the insertion of the locking pieces, and the charging gun is prevented from being pulled out; after charging, the linear driving mechanism drives the circular truncated cone block to reset, the circular truncated cone block drives the sliding block to slide inwards through the sliding groove on the outer side, and therefore the self-locking plate is driven to reset, the self-locking plate is separated from the locking groove, and locking is relieved.

The front end of the round table block is fixedly provided with a socket, and the socket is provided with a jack matched with a contact pin in the automobile charging port. And the socket is connected into the charging gun through a lead penetrating through the circular platform block.

As a further optimization scheme of the invention, the linear driving mechanism comprises a screw rod motor and a screw rod pair, an output shaft of the screw rod motor is connected with the rear end of a screw rod of the screw rod pair through a coupler, and a screw rod nut of the screw rod pair is fixedly connected with a push rod. The screw rod motor drives the screw rod pair to rotate, and then drives the push rod to move back and forth.

As a further optimized scheme of the invention, a contact switch is further arranged on the outer wall of the cylindrical part and is connected with a signal input end of the MCU. The contact switch directly detects whether the charging gun is inserted into the charging port of the automobile.

As a further optimization scheme of the invention, the cross section of the sliding chute is in a T shape. The wider portion is provided at the inner end of the chute.

The invention has the beneficial effects that:

1) the method can verify the power measurement of the charging pile and connect a remote server for auxiliary calculation to obtain accurate calculation data;

2) the charging gun is self-locked, so that the charging gun can be prevented from being pulled out by lawless persons to charge other vehicles.

Drawings

FIG. 1 is a schematic structural diagram of the present invention in accordance with one embodiment;

FIG. 2 is a schematic diagram of a controller according to the first embodiment of the present invention;

fig. 3 is a schematic structural view of a self-locking device according to a first embodiment of the invention.

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.