Charging gun homing detection device

Abstract

The utility model provides a charging gun homing detection device, and belongs to the technical field of electric vehicles and energy storage charging and discharging equipment, the device is connected with one end of a power supply, the device comprises a national javelin seat, a national javelin, a voltage detection unit, a display unit and a central processing unit, a CC1 end and a PE end are arranged in the national javelin seat, a resistor is arranged between the CC1 end and the PE end, the national javelin seat is connected with the voltage detection unit, and the display unit is connected with the central processing unit. The detection circuit is used for detecting the voltage of the CC1 end. By using the scheme provided by the invention, when the national javelin is inserted into the national javelin seat, the voltage of the CC1 end in the national javelin seat is changed to detect whether the charging gun returns to the charging gun seat.

Description

Technical Field

[0001] The utility model belongs to the technical fields of electric vehicles and energy storage charging and discharging equipment, and particularly relates to a charging gun return detection device. Background Art

[0002] At present, electric vehicle and energy storage technologies are in rapid development. Electric vehicles are charged frequently, and the qualities of personnel vary. After some charging is completed, the charging gun is not inserted back into the charging gun seat, resulting in the charging gun being randomly discarded after use and causing damage to the charging gun. Content of the Utility Model

[0003] To solve the above deficiencies of the prior art, the utility model provides a charging gun return detection device. When a national standard gun is inserted into a national standard gun seat, the voltage at the CC1 terminal in the national standard gun seat is changed to detect whether the charging gun returns to the charging gun seat.

[0004] To achieve the purpose of the utility model, the following scheme is proposed:

[0005] A charging gun return detection device, one end of which is connected to a power supply, includes: a national standard gun seat, a national standard gun, a voltage detection unit, a display unit, and a central processing unit. The national standard gun seat is provided with a CC1 terminal and a PE terminal, and a resistor is provided between the CC1 terminal and the PE terminal. The national standard gun seat is connected to the voltage detection unit for detecting the voltage at the CC1 terminal.

[0006] Further, the voltage detection unit is connected to the central processing unit, the central processing unit is connected to the display unit, and the display unit is connected to the power supply. The central processing unit is used to receive the detection result of the detection unit and output a prompt or charging process to the display unit.

[0007] Further, when the national standard gun is inserted into the national standard gun seat, the voltage of the national standard gun seat is a voltage other than 4V, 6V, and 12V.

[0008] The beneficial effects of the utility model are as follows:

[0009] 1. By providing a resistor between the CC1 terminal and the PE terminal, the voltage at the CC1 terminal in the national standard gun seat is changed. When the national standard gun is inserted into the national standard gun seat, a loop is formed, and the voltage detection unit is used to detect whether the voltage at the CC1 terminal is a voltage other than 4V, 6V, and 12V at this time, so as to determine whether the charging gun returns to its position;

[0010] 2. The voltage detection unit and the display unit are respectively used to detect the state of the national standard gun and give a prompt, so as to timely remind the user. Description of the Drawings

[0011] The drawings described herein are only for illustrating the selected embodiments, not all possible implementation schemes, and are not intended to limit the scope of the utility model.

[0012] Figure 1 The principle structure diagram of the present application is shown.

[0013] Markings in the figure: national standard gun seat - 1, CC1 terminal - 11, PE terminal - 12, resistor - 13, national standard gun - 2, power supply - 3, voltage detection unit - 4, display unit - 5, central processing unit - 6. Specific embodiments

[0014] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following describes the embodiments of the present utility model in detail with reference to the accompanying drawings. However, the embodiments described herein are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0015] As Figure 1 shown, this embodiment provides a charging gun return detection device, including a national standard gun seat 1, a national standard gun 2, a voltage detection unit 4, a display unit 5, and a central processing unit 6. The national standard gun seat 1 and the national standard gun 2 are pluggable and connectable. One end of the national standard gun 2 is connected to the power supply 3, and the other end of the national standard gun 2 is connected to the voltage detection unit 4. The national standard gun seat 1 is provided with a CC1 terminal 11, a PE terminal 12, and a resistor 13. The CC1 terminal 11 is a pair of contacts that cooperate with the CC1 inside the national standard gun 2, and they together constitute a part of the charging communication and control circuit. When the national standard gun 2 is inserted into the national standard gun seat 1, the CC1 terminal 11 of the national standard gun seat 1 contacts and closes with the CC1 of the national standard gun 2, and a low - voltage communication channel is established. The resistor 13 is arranged between the CC1 terminal 11 and the PE terminal 12 and is used to change the voltage of the CC1 terminal 11. By using the voltage range of the CC1 terminal 11, it is possible to avoid the three voltage values of 4V, 6V, and 12V in the conventional way to detect whether the national standard gun 2 is in place. When the national standard gun 2 is pulled out and not inserted back into the national standard gun seat 1, a prompt or billing process is performed. The PE terminal 12 is used for grounding.

[0016] When the national standard gun 2 is inserted into the national standard gun seat 1, the voltage of the CC1 terminal 11 is a voltage other than the three voltage values of 4V, 6V, and 12V. When the national standard gun 2 is pulled out and not inserted into the vehicle end, the voltage is 6V; when the national standard gun 2 is pulled out and not inserted into the vehicle lock mechanism end, the voltage is 12V; when the national standard gun is inserted into the vehicle lock mechanism in place, the voltage is 4V.

[0017] Specifically, the voltage detection unit 4 is connected to the central processing unit 6, the central processing unit 6 is connected to the display unit 5, and the display unit 5 is connected to the power supply 3. The central processing unit 6 is used to receive the detection results of the detection unit 4 and output a prompt or billing process to the display unit 5 for prompting the charging gun to return to its place to improve the user's perception ability. If the national standard gun 2 is not inserted back into the national standard gun seat 1, it is convenient to give a timely reminder.

[0018] The above are only the preferred embodiments of the present utility model and do not represent the only or limit the present utility model. Those skilled in the art should understand that various changes or equivalent substitutions made to the present utility model without departing from the scope of the present utility model all fall within the scope of protection of the present utility model.

Claims

1. A charging gun return detection device, connected to one end of a power source (3), comprising: A national standard gun holder (1), a national standard gun (2), a voltage detection unit (4), a display unit (5), and a central processing unit (6), characterized in that a CC1 terminal (11) and a PE terminal (12) are provided in the national standard gun holder (1), a resistor (13) is provided between the CC1 terminal (11) and the PE terminal (12), and the national standard gun holder (1) is connected to the voltage detection unit (4) for detecting the voltage of the CC1 terminal (11).

2. The charging gun return detection device according to claim 1, characterized in that: The voltage detection unit (4) is connected to the central processing unit (6), the central processing unit (6) is connected to the display unit (5), the display unit (5) is connected to the power supply (3), and the central processing unit (6) is used to receive the detection result of the detection unit (4) and output a prompt or billing process to the display unit (5).

3. The charging gun return detection device according to claim 1, characterized in that: When the national standard gun (2) is inserted into the national standard gun holder (1), the voltage of the national standard gun holder (1) is a voltage other than 4V, 6V, and 12V.

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