Charging gun charging current gear switching device

Abstract

The utility model provides a charging gun charging current gear switching device, which comprises a charging adapter plugged on a 10A socket, and is characterized in that the output end of the charging adapter is plugged with a charging gun power plug, and the charging gun power plug is electrically connected with the charging adapter; the 10A socket can be converted into a socket matched with a power plug of a charging gun through the charging adapter; a voltage influence module is arranged in the charging adapter, and the charging adapter can output specific voltage through the voltage influence module. According to the utility model, the 10A socket can be converted into the socket matched with the power plug of the charging gun through the charging adapter, so that the power plug of the charging gun can be used on any 10A socket, and as the number of the 10A sockets in a family is large, the charging position of a new energy automobile can be flexibly selected, and the use flexibility of the charging gun is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of charging guns, and particularly relates to a charging current gear switching device for a charging gun. Background Art

[0002] With the development and upgrading of the new energy vehicle industry, the demand for charging equipment is increasing day by day. As a convenient and efficient charging device, the portable AC charging gun has gradually been favored by the market. As a new generation of charging equipment, the portable AC charging gun has the characteristics of high efficiency, portability, safety, etc., and has a wider range of applications, suitable for charging needs in public places such as home charging, communities, shopping malls, office buildings, etc. Especially in rural areas, due to problems such as power equipment, the charging gun is a must for new energy vehicle owners. The charging current of the existing mode II charging gun is a fixed value. Taking a 3.5kW charging gun as an example, charging must be connected to a 16A socket to charge a new energy vehicle. In many rural areas, the household sockets are generally 10A sockets, while the charging current of the charging gun is 13A, exceeding the load, there are great safety hazards during the charging process, and the power plug of the charging gun cannot be inserted into a 10A socket. Even if a 16A socket is installed in a certain position, the charging gun can only be used at the designated position, thus greatly affecting the flexibility of use of the charging gun. Summary of the Utility Model

[0003] In order to solve the above existing technical problems, the utility model provides a charging current gear switching device for a charging gun, which can convert a 10A socket into a socket adapted to the charging gun, thereby improving the applicable range and the flexibility of use of the charging gun, and it can automatically adjust the charging current, thereby avoiding the problem that the charging current exceeds the safety current of the 10A socket, and further eliminating the safety hazards during the charging process.

[0004] Its technical solution is as follows: A charging current gear switching device for a charging gun includes a charging adapter plugged into a 10A socket. It is characterized in that the output end of the charging adapter is plugged with a charging gun power plug, and the charging gun power plug is electrically connected to the charging adapter. Through the charging adapter, the 10A socket can be converted into a socket adapted to the charging gun power plug; a voltage influencing module is arranged inside the charging adapter, and through the voltage influencing module, the charging adapter can output a specific voltage; the output end of the charging gun power plug is electrically connected to a charging gun body through a wire, and a voltage signal detection module is arranged inside the charging gun body. Through the voltage signal detection module, the voltage input into the charging gun body can be detected, and the charging gun body can be automatically controlled to switch the output current according to the voltage.

[0005] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0006] 1. The utility model can convert a 10A socket into a socket adapted to the power plug of a charging gun through a charging adapter, so that the power plug of the charging gun can be used on any 10A socket. Since there are many 10A sockets in the family, the charging position of the new energy vehicle can be flexibly selected, thus improving the flexibility of use of the charging gun.

[0007] 2. A voltage influence module is arranged inside the charging adapter of the utility model. Through the voltage influence module, the charging adapter can output a specific voltage. And a voltage signal detection module is arranged inside the charging gun body. Through the voltage signal detection module, the voltage input into the charging gun body can be detected. When the voltage signal detection module detects a specific voltage, it will automatically control the charging gun body to switch the charging current so that the charging current is less than 10A, thus ensuring the use safety of the 10A socket. When the voltage signal detection module detects a normal voltage, that is, when the power plug of the charging gun is directly plugged into a 16A socket, the voltage signal detection module will control the charging current of the charging gun body to return to normal, achieving the effect of automatically adjusting the charging current. Description of the Drawings

[0008] Figure 1 is a schematic structural diagram of the utility model.

[0009] Figure 2 is a schematic structural diagram of the charging adapter of the utility model.

[0010] Figure 3 is a schematic structural diagram of the charging gun body of the utility model.

[0011] In the figure:

[0012] 1. Charging adapter; 11. LED indicator; 12. First resistor; 2. Power plug of the charging gun; 3. Charging gun body; 31. MCU module; 32. Second resistor; 33. Capacitor. Detailed Embodiment

[0013] The following specifically describes the utility model with reference to the drawings. As shown in the attached Figure 1As shown in the figure, a charging current gear switching device for a charging gun includes a charging conversion head 1 plugged into a 10A socket. The output end of the charging conversion head 1 is plugged with a charging gun power plug 2, and the charging gun power plug 2 is electrically connected to the charging conversion head 1. Through the charging conversion head 1, the 10A socket can be converted into a socket adapted to the charging gun power plug 2; a voltage influencing module is arranged inside the charging conversion head 1, and through the voltage influencing module, the charging conversion head 1 can output a specific voltage; the output end of the charging gun power plug 2 is electrically connected to a charging gun body 3 through a wire, and a voltage signal detection module is arranged inside the charging gun body 3. Through the voltage signal detection module, the voltage input into the charging gun body 3 can be detected, and the charging gun body 3 can be automatically controlled to switch the output current according to the voltage; through the charging conversion head 1, the 10A socket can be converted into a socket adapted to the charging gun power plug 2, so that the charging gun power plug 2 can be used on any 10A socket. Since there are many 10A sockets in the family, the charging position of the new energy vehicle can be flexibly selected, thereby improving the use flexibility of the charging gun; a voltage influencing module is arranged inside the charging conversion head 1 of the present utility model, and through the voltage influencing module, the charging conversion head 1 can output a specific voltage, and a voltage signal detection module is arranged inside the charging gun body 3. Through the voltage signal detection module, the voltage input into the charging gun body 3 can be detected. When the voltage signal detection module detects a specific voltage, it will automatically control the charging gun body 3 to switch the charging current so that the charging current is less than 10A, thereby ensuring the use safety of the 10A socket; when the voltage signal detection module detects a normal voltage, that is, when the charging gun power plug 2 is directly plugged into a 16A socket, the voltage signal detection module will control the charging current of the charging gun body 3 to return to normal, achieving the effect of automatically adjusting the charging current.

[0014] Combined with the attached Figure 2 As shown in the figure, the voltage influencing module includes a first resistor 12. One end of the first resistor 12 is electrically connected to the N phase in the charging conversion head 1, and the other end is electrically connected to the PE phase in the charging conversion head 1. Through the first resistor 12, the charging conversion head 1 can output a specific voltage.

[0015] In order to facilitate observing the energization condition of the charging conversion head 1, one end of an LED indicator lamp 11 is also electrically connected to the N phase in the charging conversion head 1, and the other end of the LED indicator lamp 11 is electrically connected to the L phase in the charging conversion head 1.

[0016] Combined with the attached Figure 3As shown in the figure, the voltage signal detection module includes an MCU module 31. The MCU module 31 is electrically connected to the main board in the charging gun body 3, and one end of a second resistor 32 is electrically connected to the input end of the MCU module 31. The other end of the second resistor 32 is electrically connected to the main board power supply end of the charging gun body 3; one end of a capacitor 33 is also electrically connected to the input end of the MCU module 31, and the other end of the capacitor 33 is electrically connected to the ground wire in the charging gun body 3; the common end of the MCU module 31, the second resistor 32 and the capacitor 33 is electrically connected to the N phase in the charging gun body 3; the second resistor 32 is a pull-up resistor; the capacitor 33 is a filter capacitor.

[0017] When the charging gun power plug 2 is connected to a 10A socket through the charging adapter 1, the first resistor 12 will cause the charging adapter 1 to output a specific voltage. When the MCU module 31 detects a specific voltage, the MCU module 31 will automatically send a power-down charging instruction to the main board of the charging gun body 3, so that the charging gun body 3 works with a charging current lower than 10A, thus ensuring the safe use of the 10A socket.

[0018] Any technical solution using the technical solution of the present invention, or any technical solution designed by those skilled in the art inspired by the technical solution of the present invention and achieving the above technical effects shall fall within the protection scope of the present invention.

Claims

1. A charging current gear shifting device for a charging gun. The charging current gear shifting device for the charging gun includes a charging conversion head (1) plugged into a 10A socket, and is characterized in that, The output end of the charging adapter (1) is plugged with a charging gun power plug (2), and the charging gun power plug (2) is electrically connected to the charging adapter (1). Through the charging adapter (1), a 10A socket can be converted into a socket adapted to the charging gun power plug (2); a voltage influencing module is arranged inside the charging adapter (1), and through the voltage influencing module, the charging adapter (1) can output a specific voltage; the output end of the charging gun power plug (2) is electrically connected to a charging gun body (3) through a wire, and a voltage signal detection module is arranged inside the charging gun body (3). Through the voltage signal detection module, the voltage input into the charging gun body (3) can be detected, and the charging gun body (3) can be automatically controlled to switch the output current according to the voltage.

2. The charging current gear switching device of the charging gun according to claim 1, characterized in that, The voltage influencing module includes a first resistor (12), one end of the first resistor (12) is electrically connected to the N phase in the charging adapter (1), and the other end is electrically connected to the PE phase in the charging adapter (1). Through the first resistor (12), the charging adapter (1) can output a specific voltage.

3. The charging current gear switching device of the charging gun according to claim 2, characterized in that One end of an LED indicator light (11) is also electrically connected to the N phase in the charging adapter (1), and the other end of the LED indicator light (11) is electrically connected to the L phase in the charging adapter (1) for power-on indication.

4. The charging current gear switching device of the charging gun according to claim 1, characterized in that The voltage signal detection module includes an MCU module (31). The MCU module (31) is electrically connected to the main board in the charging gun body (3), and one end of a second resistor (32) is electrically connected to the input end of the MCU module (31). The other end of the second resistor (32) is electrically connected to the main board power supply end of the charging gun body (3); one end of a capacitor (33) is also electrically connected to the input end of the MCU module (31), and the other end of the capacitor (33) is electrically connected to the ground wire in the charging gun body (3); the common end of the MCU module (31), the second resistor (32) and the capacitor (33) is electrically connected to the N phase in the charging gun body (3).

5. The charging current gear switching device of the charging gun according to claim 4, characterized in that, The second resistor (32) is a pull-up resistor.

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