Device for charging external equipment through mode two CP wire

Abstract

The utility model discloses a device for charging external equipment through a mode two CP line, which comprises a charging protection system and a charging gun seat, and a control circuit used for switching output of the CP line is arranged in the charging protection system. A gun base short-range communication module, a wireless communication module, a CP detection circuit and a gun base controller used for controlling the gun base short-range communication module and the wireless communication module are arranged in the charging gun base, the control circuit is provided with a first detection point used for recognizing the connection state through the charging protection system, and the CP detection circuit is provided with a second detection point used for recognizing the connection state through the charging gun base. Therefore, an interlocking state is formed to identify the connection state of the charging gun head and the charging gun seat. The first detection point of the charging protection system and the second detection point of the charging gun base are arranged to form an interlocking state so as to identify whether the charging gun head is correctly connected to the charging gun base, and the charging process is started only when the charging gun head and the charging gun base are completely connected, so that the charging reliability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicle charging, in particular to a device for charging external equipment through a mode 2 CP line. Background Art

[0002] The new energy vehicle industry is currently developing rapidly, and the demand for charging scenarios is becoming increasingly intelligent and convenient. The traditional Mode 2 and Mode 3 charging protection systems have their own limitations. For example, Mode 2 does not have remote interaction functions and does not support scheduled charging functions; Mode 3 is used in a fixed location and cannot be charged on the vehicle. Users are restricted by this and can only use different charging protection systems in different scenarios. Summary of the Invention

[0003] The embodiment of the present application provides a device for charging an external device through a mode 2 CP line, and forms an interlocking state by setting a first detection point of the charging protection system and a second detection point of the charging gun holder. This mechanism can accurately identify whether the charging gun head is correctly connected to the charging gun holder. The charging process will only start when the two are fully engaged, thereby improving the reliability and safety of charging.

[0004] To achieve the above purpose, the present invention provides the following technical solutions: a device for charging an external device via a mode 2 CP line, comprising:

[0005] Charging protection system: The charging protection system has a built-in control circuit for switching the output of the CP line, and external power is used to supplement the power of the charging protection system;

[0006] The charging gun mount has a built-in gun mount short-range communication module for information interaction, a wireless communication module for long-distance network communication, a CP detection circuit, a gun mount controller for controlling the gun mount short-range communication module and the wireless communication module, and a battery pack for powering the gun mount short-range communication module, the wireless communication module, the gun mount controller and the CP detection circuit. The control circuit is provided with a first detection point detected by the charging protection system to identify the connection status, and the CP detection circuit is provided with a second detection point detected by the charging gun mount to identify the connection status, thereby forming an interlocking state to identify whether the charging gun head is connected to the charging gun mount.

[0007] Compared with the prior art, the advantages of the present invention are:

[0008] The device cleverly designs a first detection point for the charging protection system and a second detection point for the charging gun holder, creating an interlocking state. This mechanism accurately identifies whether the charging gun tip is properly connected to the charging gun holder. Charging only starts when the two are fully engaged, thus avoiding charging failures or safety hazards caused by a loose connection or misoperation. This effectively avoids charging problems caused by misoperation or incomplete connection, improving charging reliability and safety. Based on this interlocking state information, the charging system can more intelligently adjust the charging strategy. For example, if a poor connection between the charging gun tip and the charging gun holder is detected, the system will reduce the charging current or extend the charging time to ensure safe charging.

[0009] The short-range communication module and the wireless communication module can pair and communicate in real time with smart mobile terminals and vehicles equipped with similar communication modules. This real-time communication capability ensures that information during the charging process can be transmitted quickly, enabling the system to respond to various instructions and status changes in a timely manner. It can support a variety of smart mobile terminals and meet people's diverse needs in different scenarios.

[0010] As an improvement, the CP detection circuit includes R1, R2 and R3 in parallel with R1, and R2 and R3 in series. After R1's specific voltage divider value, the first detection point is detected by the charging protection system to identify the connection status. The second detection point is set between R2 and R3. After the charging gun is inserted into the gun holder, the voltage level change at the first detection point allows the charging protection system to accurately identify whether the charging gun is fully inserted and properly connected. This accurate identification helps ensure the stability and safety of the charging process and avoid charging failures or safety accidents caused by poor connection. The second detection point is set between R2 and R3 to provide an additional connection status confirmation point. When the charging gun is fully inserted into the gun holder, R2 and R3 will form a new voltage divider circuit. By detecting the voltage value in this voltage divider circuit, the stable and reliable connection between the charging gun and the charging gun holder can be further confirmed.

[0011] As an improvement, the charging protection system now complies with the Mode 2 charging protection system defined in GB / T 18487.1, enabling independent AC charging of new energy vehicles. The Mode 2 charging system is suitable for a wide range of new energy vehicle brands and models, offering high versatility and compatibility. This eliminates the need for dedicated charging equipment for different brands of new energy vehicles, reducing costs.

[0012] As an improvement, the charging protection system also has a built-in system controller and a system short-range communication module. The system controller is electrically connected to the system short-range communication module and the control circuit to control the pairing of the system short-range communication module with the gun mount short-range communication module or an intelligent mobile terminal or vehicle equipped with a similar communication module, thereby receiving control from the paired device or uploading information to the paired device. The system controller can pair and communicate with the gun mount short-range communication module or an intelligent mobile terminal or vehicle equipped with a similar communication module in real time through the system short-range communication module. This real-time communication capability ensures that information during the charging process can be transmitted quickly, allowing the system to respond to various instructions and status changes in a timely manner.

[0013] As an improvement, smart mobile terminals include smartphones, PDAs, tablets, laptops and car computers, supporting a variety of smart mobile terminals to meet people's diverse needs in different scenarios.

[0014] As an improvement, the uploaded information includes the status information of the charging gun holder, charging power information, control information, and fault information. By uploading the status information of the charging gun holder, the system can monitor the connection status of the gun holder, the number of plug-in and unplugging times, etc. in real time to ensure the smooth progress of the charging process; the system can track and record the changes in power during the charging process in real time, and provide users with accurate charging progress and remaining time predictions; users or managers can upload control information to achieve remote control of the charging process, such as starting, stopping, and adjusting the charging power; when the charging system fails, the fault information can be quickly uploaded to the system background to help maintenance personnel quickly locate the problem.

[0015] As an improvement, the gun mount short-range communication module is a Bluetooth module, a WiFi module, a ZigBee module, or a combination of these modules. The module combination can be flexibly configured according to the needs of specific application scenarios to achieve more comprehensive, flexible, and reliable communication functions.

[0016] As an improvement, the control circuit is a relay or soft switch. The relay control circuit achieves electrical isolation through physical contacts, which helps prevent high voltage or high current from damaging other parts of the system. The soft switch has a fast response speed and can quickly adjust the charging current and voltage to adapt to different charging needs.

[0017] As an improvement, the charging gun holder also has a built-in charging protection circuit. The charging gun head is electrically connected to the battery pack through the charging protection circuit, so that the charging protection circuit provides charging and protection functions for the battery pack. The charging protection circuit can monitor the voltage of the battery pack. When the voltage reaches the preset upper limit, it automatically cuts off the charging current to prevent the battery pack from overcharging. Overcharge protection helps to extend the service life of the battery pack and prevent safety problems such as battery bulging, leakage and even explosion caused by overcharging. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0019] Figure 1 A schematic diagram of a device connection for charging an external device via a Mode 2 CP line;

[0020] Figure 2 This is a connection diagram of the control circuit and CP detection circuit. DETAILED DESCRIPTION

[0021] like Figures 1 to 2 As shown, a device for charging an external device through a mode 2 CP line includes a charging protection system and a charging gun holder. The charging protection system has a built-in control circuit for switching the output of the CP line. The external power is electrically connected to one end of the control circuit. The charging gun holder has a built-in gun holder short-range communication module for information interaction, a wireless communication module for long-distance network communication, a CP detection circuit, a gun holder controller for controlling the gun holder short-range communication module and the wireless communication module, and a battery pack for powering the gun holder short-range communication module, the wireless communication module, the gun holder controller and the CP detection circuit. The external power supplements the power of the charging protection system and the battery pack. Preferably, the external power can be converted into a DC power output through the ACDC module of the charging protection system to supplement the power of the battery pack. The control circuit is provided with a first detection point detected by the charging protection system to identify the connection status. The CP detection circuit is provided with a second detection point detected by the charging gun holder to identify the connection status, thereby forming an interlocking state to identify whether the charging gun head is connected to the charging gun holder. Preferably, the charging cable and the charging gun head are in compliance with GB / T The charging cable and charging gun head defined in 18487.1 have a built-in control guidance circuit, namely, a CP circuit, that complies with connection method B or connection method C. Preferably, when the charging cable and charging gun head are connected to the charging gun base, DC power can be output through the CP / PE terminal to replenish the battery pack.

[0022] The CP detection circuit includes R1, R2 and R3 in parallel with R1. R2 and R3 are connected in series. After a specific voltage divider value of R1, the first detection point is detected by the charging protection system to identify the connection status. The second detection point is set between R2 and R3.

[0023] The charging protection system complies with the Mode 2 charging protection system defined in GB / T 18487.1 and can independently perform AC charging for new energy vehicles.

[0024] The charging protection system also has a built-in system controller and a system short-range communication module. The system controller is electrically connected to the system short-range communication module and the control circuit to control the pairing of the system short-range communication module with the gun mount short-range communication module or a smart mobile terminal or vehicle equipped with a similar communication module, thereby receiving control from the paired device or uploading information to the paired device.

[0025] Smart mobile terminals include smartphones, PDAs, tablet computers, laptops and car computers.

[0026] The uploaded information includes the status information of the charging gun holder, charging power information, control information, and fault information.

[0027] The gun mount short-range communication module is a Bluetooth module, a WiFi module, a ZigBee module, or a combination of these modules.

[0028] The control circuit is a relay or soft switch.

[0029] The charging gun holder also has a built-in charging protection circuit. The charging gun head is electrically connected to the battery pack through the charging protection circuit, so that the charging protection circuit provides charging and protection functions for the battery pack.

[0030] Preferably, the wireless communication module is connected to the remote management platform through a specific protocol, uploads the information obtained by the gun mount short-range communication module to the remote management platform, and receives control commands from the remote management platform at the same time, and then wirelessly controls the charging protection system through the gun mount short-range communication module, or transmits the uploaded information to the remote management platform to prompt the user to perform corresponding operations. At the same time, the user can independently choose whether to charge the charging gun mount through the remote management platform.

[0031] After the charging gun is inserted into the gun holder, the charging protection system detects the change in the level value at the first detection point to identify the connection status. The charging protection system can accurately identify whether the charging gun is fully inserted and well connected. At the same time, R2 and R3 will form a new voltage divider circuit. By detecting the voltage value in this voltage divider circuit at the second monitoring point, it can be further confirmed whether the connection status between the charging gun and the charging gun holder is stable and reliable. When the charging gun holder detects that the charging gun head is reliably connected to it and the charging gun holder determines the power status of the lithium battery pack, it sends a charging request signal to the system short-range communication module through the gun holder short-range communication module and uploads the status information of the charging gun holder, the charging power information of the charging gun holder, and the control information of the charging gun holder to the system short-range communication module. The charging process is started by the charging protection system. The charging protection system detects a specific CP state or receives a request signal from the charging gun holder. The control circuit switches the CP line to DC power output to start charging.

[0032] The above is an exemplary description of the present invention in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. A device for charging an external device via a Mode 2 CP line, characterized by: include A charging protection system having a built-in control circuit for switching the output of the CP line, wherein external power is used to supplement the power of the charging protection system; A charging gun base, which has a built-in gun base short-range communication module for information interaction, a wireless communication module for long-range network communication, a CP detection circuit, a gun base controller for controlling the gun base short-range communication module and the wireless communication module, and a battery pack for powering the gun base short-range communication module, the wireless communication module, the gun base controller and the CP detection circuit. The control circuit is provided with a first detection point detected by the charging protection system to identify the connection status, and the CP detection circuit is provided with a second detection point detected by the charging gun base to identify the connection status, thereby forming an interlocking state to identify whether the charging gun head is connected to the charging gun base.

2. The device for charging an external device via a Mode 2 CP line according to claim 1, characterized in that: The CP detection circuit includes R1, R2 and R3 connected in parallel with R1, R2 and R3 are connected in series, and after a specific voltage division value of R1, the first detection point is detected by the charging protection system to identify the connection status, and the second detection point is set between R2 and R3.

3. The device for charging an external device via a Mode 2 CP line according to claim 1, characterized in that: The charging protection system is a mode 2 charging protection system that complies with the definition of GB / T 18487.1 and can independently perform AC charging of new energy vehicles.

4. The device for charging an external device via a Mode 2 CP line according to claim 1, wherein: The charging protection system also has a built-in system controller and a system short-range communication module. The system controller is electrically connected to the system short-range communication module and the control circuit to control the pairing of the system short-range communication module with the gun mount short-range communication module or a smart mobile terminal or vehicle equipped with a similar communication module, thereby receiving control from the pairing device or uploading information to the pairing device.

5. The device for charging an external device via a mode 2 CP line according to claim 4, characterized in that: The intelligent mobile terminals include smart phones, PDAs, tablet computers, laptop computers and vehicle-mounted computers.

6. The device for charging an external device via a Mode 2 CP line according to claim 4, characterized in that: The uploaded information includes status information of the charging gun holder, charging power information, control information, and fault information.

7. The device for charging an external device via a Mode 2 CP line according to claim 1, characterized in that: The gun mount short-range communication module is a Bluetooth module, a WiFi module, a ZigBee module, or a combination of these modules.

8. The device for charging an external device via a Mode 2 CP line according to claim 1, characterized in that: The control circuit is a relay or a soft switch.

9. The device for charging an external device via a Mode 2 CP line according to claim 1, characterized in that: The charging gun holder also has a built-in charging protection circuit, and the charging gun head is electrically connected to the battery pack through the charging protection circuit.

Images