Portable non-vehicle-mounted charger verification device

Abstract

The utility model relates to a portable non-vehicle-mounted charger checking device, which comprises a direct-current charging interface socket of a connecting device for conductive charging of an electric vehicle, an internal circuit and a direct-current charging interface plug of the connecting device for conductive charging of the electric vehicle, the direct-current charging interface socket of the connecting device for electric vehicle conduction charging is used for being connected with a non-vehicle-mounted charger direct-current muzzle, the direct-current charging interface plug of the connecting device for electric vehicle conduction charging is used for being connected with a direct-current charging socket of a new energy vehicle, and the internal circuit is used for detecting and verifying charging data. According to the utility model, the charging gun is connected to the verification device through the direct-current charging interface socket of the connecting device for conductive charging of the electric automobile, power metering and metering data cloud platform uploading are completed through an internal circuit, and the direct-current charging interface plug of the connecting device for conductive charging of the electric automobile is connected with the electric automobile. The testing device has the advantages of recycling electric energy, greatly reducing energy consumption, being high in testing power and the like.

Description

Technical Field

[0001] This utility model belongs to the field of off-vehicle charging technology, and in particular, it is a portable off-vehicle charger verification device. Background Technology

[0002] Off-board charger operating error verification methods are divided into the actual load method and the virtual load method. Because off-board chargers have relatively high power, ranging from tens to hundreds of kilowatts, verification work must be completed on-site. Currently, the mainstream on-site verification device adopts the actual load method, which is divided into two types: vehicle-mounted fixed type and portable type.

[0003] The vehicle-mounted fixed non-vehicle-mounted charger calibration device uses a modified special engineering vehicle as the transport carrier. The device mainly consists of a calibration host, adjustable electronic load, control console, operating system, cooling system, and UPS power supply system. The vehicle-mounted fixed calibration device has advantages such as adjustable electronic load, large load power (generally ranging from tens to hundreds of kilowatts), and short calibration time, but it also has many disadvantages such as large size and weight of the engineering vehicle, inconvenience for on-site movement, high cost, and high energy consumption.

[0004] Portable off-vehicle charger calibration devices can be transported using ordinary vehicles. The device mainly consists of a calibration host, an extended load, and an operating terminal. Portable off-vehicle charger calibration devices have advantages such as relatively small size, short-distance on-site movement without external vehicles, and relatively light weight. However, they also have disadvantages such as fixed load impedance, poor selectivity for measured current and voltage, low load power (generally not exceeding 30 kilowatts), long calibration time, and relatively high overall unit price. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and propose a portable off-vehicle charger calibration device. By using an electric vehicle as the load platform, it has the advantages of energy recovery and utilization, significantly reducing energy consumption, high testing power, transportation by new energy vehicles, portability on site, high efficiency, and low manufacturing cost.

[0006] The technical problem solved by this utility model is achieved through the following technical solution:

[0007] A portable off-board charger calibration device includes a DC charging interface socket for an electric vehicle conductive charging connection, an internal circuit, and a DC charging interface plug for an electric vehicle conductive charging connection. The DC charging interface socket is connected to the DC charging interface plug, and the internal circuit is connected to both the socket and the plug. The socket is used to connect to the DC port of the off-board charger, and the plug is used to connect to the DC charging socket of a new energy vehicle. The internal circuit is used for charging data detection and calibration.

[0008] Furthermore, the DC charging interface socket of the electric vehicle conductive charging connection device is connected to the DC charging interface plug of the electric vehicle conductive charging connection device via a 9-pin lead.

[0009] Furthermore, the 9-pin leads include a DC power positive lead DC+, a DC power negative lead DC-, a charging connection confirmation lead CC1, a charging connection confirmation lead CC2, a communication lead CAN-HS+, a communication lead CAN-LS-, a ground lead PE, a low-voltage auxiliary power positive lead A+, and a low-voltage auxiliary power negative lead A-.

[0010] Furthermore, the internal circuitry includes a current sampling unit, a voltage sampling unit, a power metering sampling unit, a data processing unit, a communication unit, a power supply interface, and a control unit. The control unit is connected to the internal circuitry (including the current sampling unit, voltage sampling unit, power metering sampling unit, data processing unit, and communication unit) for power supply. The current sampling unit and voltage sampling unit are connected to the power metering sampling unit, and the control unit is connected to the data processing unit and the power metering sampling unit. The power metering sampling unit is connected to the data processing unit. The current sampling unit is used to collect current data, the voltage sampling unit is used to collect voltage data, the power metering sampling unit is used to calculate power based on the current and voltage data, the data processing unit is used to confirm the charging connection status, and the communication unit is used to send the charging connection status, communication port information, current data, voltage data, and power data.

[0011] Furthermore, the input terminal of the power supply interface is connected to the positive lead A+ and the negative lead A- of the low-voltage auxiliary power supply for input power.

[0012] Furthermore, the current sampling unit is connected to the positive power supply lead DC+ and is used to collect current data.

[0013] Furthermore, the voltage sampling unit is connected to the positive lead DC+ and the negative lead DC- of the DC power supply for collecting voltage data.

[0014] Furthermore, the data processing unit is connected to communication leads CAN-HS+ and CAN-LS- to receive communication port information; the data processing unit is also connected to charging connection confirmation leads CC1 and CC2 to collect charging connection status.

[0015] The advantages and positive effects of this utility model are:

[0016] This utility model includes a DC charging interface socket for a conductive charging connection device for electric vehicles, an internal circuit, and a DC charging interface plug for the same device. The DC charging interface socket connects to the DC charging gun of a non-vehicle-mounted charger, and the plug connects to the DC charging socket of a new energy vehicle. The internal circuit is used for charging data detection and verification. This utility model connects the charging gun to a verification device via the DC charging interface socket, performs power measurement and uploads the measurement data to a cloud platform via the internal circuit, and connects to the electric vehicle via the DC charging interface plug. This utility model offers advantages such as energy recovery and utilization, significantly reduced energy consumption, high testing power, transportation via a new energy vehicle, portability, high efficiency, and low manufacturing cost. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the device of this utility model;

[0018] Figure 2 This is a modeling drawing of the main view of this utility model;

[0019] Figure 3 This is a line drawing of the main view of this utility model;

[0020] Figure 4 Modeling diagram of the DC charging interface plug of the electric vehicle conductive charging connection device of this utility model;

[0021] Figure 5 Line drawing of the main view of the DC charging interface plug of the electric vehicle conductive charging connection device of this utility model;

[0022] Figure 6 Modeling diagram of the DC charging interface socket of the electric vehicle conductive charging connection device of this utility model;

[0023] Figure 7 Line drawing of the main view of the DC charging interface socket of the electric vehicle conductive charging connection device of this utility model;

[0024] Figure 8This is a schematic diagram of the DC charging interface socket of the electric vehicle conductive charging connection device of this utility model.

[0025] Figure 9 This is a physical image of the DC charging interface socket of the electric vehicle conductive charging connection device according to this utility model;

[0026] Figure 10 This is a schematic diagram of the DC charging interface plug of the electric vehicle conductive charging connection device of this utility model.

[0027] Figure 11 This is a physical image of the DC charging interface plug of the electric vehicle conductive charging connection device of this utility model. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings.

[0029] A portable off-vehicle charger calibration device, such as Figure 1 , Figure 2 and Figure 3 As shown, the device includes a DC charging interface socket for conductive charging of electric vehicles, an internal circuit, and a DC charging interface plug for conductive charging of electric vehicles. The DC charging interface socket is connected to the DC charging interface plug. The internal circuit is connected to both the DC charging interface socket and the DC charging interface plug. The DC charging interface socket is used to connect to the DC port of a non-vehicle-mounted charger, and the DC charging interface plug is used to connect to the DC charging socket of a new energy vehicle. The internal circuit is used for charging data detection and verification.

[0030] like Figure 4 , Figure 5 , Figure 8 and Figure 9 As shown, the DC charging interface socket of the electric vehicle conductive charging connection device is located at the top of the calibration device. It is mainly used to connect the charging gun of the DC charging pile. After connection, the locking head of the charging gun and the socket buckle are locked firmly.

[0031] The DC charging interface socket for the electric vehicle conductive charging connection device is connected to the DC charging interface plug for the electric vehicle conductive charging connection device via a 9-pin lead.

[0032] like Figure 6 , Figure 7 , Figure 10 and Figure 11As shown, after passing through the data processing module, the 9-pin lead is connected to the DC charging interface plug of the electric vehicle conductive charging connection device. The 9-pin is connected to the corresponding pin of the plug, and the plug can be connected to the car for verification.

[0033] The 9-pin leads include DC power positive lead DC+, DC power negative lead DC-, charging connection confirmation lead CC1, charging connection confirmation lead CC2, communication leads CAN-HS+ and CAN-LS-, ground lead PE, low-voltage auxiliary power positive lead A+, and low-voltage auxiliary power negative lead A-.

[0034] The internal circuitry includes a current sampling unit, a voltage sampling unit, a power metering sampling unit, a data processing unit, a communication unit, a power supply interface, and a control unit. The control unit is connected to the current sampling unit, voltage sampling unit, power metering sampling unit, data processing unit, and communication unit for power supply. The current sampling unit and voltage sampling unit are connected to the power metering sampling unit, and the control unit is connected to the data processing unit and power metering sampling unit. The power metering sampling unit is connected to the data processing unit. The current sampling unit is used to collect current data, the voltage sampling unit is used to collect voltage data, the power metering sampling unit is used to calculate power based on the current and voltage data, the data processing unit is used to confirm the charging connection status, and the communication unit is used to send the charging connection status, communication port information, current data, voltage data, and power data.

[0035] The power supply interface connects to the positive lead A+ and the negative lead A- of the low-voltage auxiliary power supply for input power. The power supply interface can be powered by a battery or an external power source.

[0036] The current sampling unit is connected to the positive lead DC+ of the power supply to collect current data.

[0037] The voltage sampling unit is connected to the positive lead DC+ and the negative lead DC- of the DC power supply to collect voltage data.

[0038] The data processing unit is connected to the communication leads CAN-HS+ and CAN-LS- to receive communication port information; the data processing unit is also connected to the charging connection confirmation leads CC1 and CC2 to collect charging connection status.

[0039] The working principle of this utility model is as follows:

[0040] The DC charging interface socket of the electric vehicle conductive charging connection device connects to the charging gun of the DC charging pile, and the DC charging interface plug of the electric vehicle conductive charging connection device connects to the DC charging socket of the new energy vehicle. The current sampling unit samples the current value of the DC+ line, and the voltage sampling unit samples the DC+ and DC- voltage values. The current sampling unit and the voltage sampling unit transmit the sampling results to the power metering sampling unit. After power metering, the data is transmitted to the data processing unit for data result processing. Finally, the communication unit remotely reports the results.

[0041] It should be emphasized that the embodiments described in this utility model are illustrative rather than limiting. Therefore, this utility model includes, but is not limited to, the embodiments described in the specific implementation. Any other implementation methods derived by those skilled in the art based on the technical solutions of this utility model are also within the scope of protection of this utility model.

Claims

1. A portable off-board charger verification device, comprising: The application relates to a connecting device for electric vehicle conductive charging, which comprises a DC charging interface socket, an internal circuit and a DC charging interface plug.

2. The portable off-board charger verification device of claim 1, wherein: The DC charging interface socket is connected to the DC charging interface plug through 9PIN lead wires.

3. The portable off-board charger verification device of claim 2, wherein: The 9PIN lead wires comprise a DC power positive lead wire DC+, a DC power negative lead wire DC-, a charging connection confirmation lead wire CC1, a charging connection confirmation lead wire CC2, a communication lead wire CAN-HS+, a communication lead wire CAN-LS-, a ground lead wire PE, a low-voltage auxiliary power positive lead wire A+ and a low-voltage auxiliary power negative lead wire A-.

4. The portable off-vehicle charger verification device of claim 1, wherein: The internal circuit comprises a current sampling unit, a voltage sampling unit, a power metering sampling unit, a data processing unit, a communication unit, a power supply interface and a control unit.

5. The portable off-board charger verification device of claim 4, wherein: The input end of the power supply interface is connected to the low-voltage auxiliary power positive lead wire A+ and the low-voltage auxiliary power negative lead wire A- for inputting power.

6. The portable off-vehicle charger verification device of claim 4, wherein: The current sampling unit is connected to the DC power positive lead wire DC+ for collecting current data.

7. The portable off-vehicle charger verification device of claim 4, wherein: The voltage sampling unit is connected to the DC power positive lead wire DC+ and the DC power negative lead wire DC- for collecting voltage data.

8. The portable off-vehicle charger verification device of claim 4, wherein: The data processing unit is connected to the communication lead wire CAN-HS+ and the communication lead wire CAN-LS- for receiving communication port information; the data processing unit is connected to the charging connection confirmation lead wire CC1 and the charging connection confirmation lead wire CC2 for collecting charging connection states.

Images