Charging pile short circuit protection device

Abstract

The utility model discloses a charging pile short circuit protection device, and relates to the technical field of short circuit protection, the charging pile short circuit protection device comprises a charging pile main body, an outer protection assembly is arranged outside the charging pile main body, the outer protection assembly comprises a fixed box, the fixed box is fixedly installed outside the charging pile main body, and an alarm assembly is arranged at the top of the fixed box. The alarm assembly comprises an alarm detector, the alarm detector is fixedly installed on the top of the fixed box, and a protection assembly is arranged on the front face of the alarm detector. When the alarm detector detects that charging current and voltage are abnormal, the circuit breaker can automatically cut off a power supply, damage to a charging pile and a vehicle is prevented, accidents are avoided, the threaded fixing ring is in threaded connection with one end of the wiring pipe, the connecting position of the wiring pipe and a connecting line can be reinforced by rotating the threaded fixing ring, and the safety of the charging pile is improved. The connection stability of the connecting wire is improved, the looseness of the connecting wire is reduced, and the loose short circuit at the wiring position is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to short circuit protection technical field, concretely relates to a charging pile short circuit protection device. BACKGROUND

[0002] With the gradual popularization of electric vehicles, the charging facilities of electric vehicles are paid more and more attention, and charging piles are gradually applied. The charging pile refers to a charging device for providing energy supplement for electric vehicles. Its function is similar to that of a refueling machine in a gas station. It can be fixed to the ground or wall and installed in public buildings and residential parking lots or charging stations. It can charge various models of electric vehicles according to different voltage levels. At present, during the charging process of new energy charging piles, current output overcurrent or short circuit may occur. In order to better protect the user, a protection device is generally provided. Therefore, the present application provides a charging pile short circuit protection device. The existing technology has the following problems:

[0003] 1. The existing charging pile short circuit protection device has poor stability at the line connection, is prone to looseness, has poor outdoor protection effect, and the line connection may be in contact with water to cause short circuit. UTILITY MODEL CONTENTS

[0004] To solve the above technical problems, the technical scheme adopted by the utility model is:

[0005] A charging pile short circuit protection device, comprising a charging pile main body, an external protection assembly is arranged outside the charging pile main body, the external protection assembly comprises a fixed box, the fixed box is fixedly installed outside the charging pile main body, an alarm assembly is arranged at the top of the fixed box, the alarm assembly comprises an alarm detector, the alarm detector is fixedly installed at the top of the fixed box, a protection assembly is arranged on the front of the alarm detector, the protection assembly comprises a circuit breaker, the circuit breaker is fixedly installed on the front of the alarm detector, and the circuit breaker is electrically connected with the alarm detector.

[0006] Further improvement of the technical scheme of the utility model is that air grates are arranged on both sides of the fixed box, and a mounting groove is arranged at the top of the fixed box.

[0007] Further improvement of the technical scheme of the utility model is that a mounting frame is fixedly installed at the top of the fixed box, a shielding plate is fixedly installed at the top end of the mounting frame, and cable racks are fixedly installed on both sides of the shielding plate.

[0008] Further improvement of the technical scheme of the utility model is that a wiring pipe is fixedly installed on one side of the alarm detector, and a key is fixedly installed on the front of the alarm detector.

[0009] The further improvement in the utility model technical scheme lies in that one end of the wiring pipe is threadedly connected with a threaded fixing ring, and one end of the wiring pipe is fixedly installed with a connecting wire.

[0010] The further improvement in the utility model technical scheme lies in that the top of the alarm detector is fixedly installed with a mounting cover plate, and the top of the mounting cover plate is fixedly installed with an alarm buzzer.

[0011] The further improvement in the utility model technical scheme lies in that the two ends of the circuit breaker are fixedly connected with mounting plates, the front face of the mounting plate is threadedly installed with mounting bolts, the front face of the circuit breaker is embeddedly installed with an indicating table, and the front face of the circuit breaker is rotatably connected with a control lever.

[0012] The further improvement in the utility model technical scheme lies in that the bottom of the fixing box is fixedly installed with a supporting seat, one side of the fixing box is fixedly installed with a charging wire, and one end of the charging wire is fixedly installed with a charging connector.

[0013] Thanks to the above technical scheme, the utility model has the following technical progress compared with the prior art:

[0014] 1. The charging pile short circuit protection device is characterized in that the circuit breaker is fixed on the front face of the alarm detector and electrically connected with the alarm detector under the cooperation of the circuit breaker and the threaded fixing ring, the circuit breaker can automatically cut off the power supply when the alarm detector detects abnormal current voltage of charging, thereby preventing damage to the charging pile and the vehicle and avoiding accidents, the threaded fixing ring is threadedly connected with one end of the wiring pipe, the threaded fixing ring can reinforce the connection between the wiring pipe and the connecting wire, thereby improving the stability of the connecting wire during connection, reducing looseness of the connecting wire and preventing loose short circuit of the wiring.

[0015] 2. The charging pile short circuit protection device is characterized in that the air permeable grating is located on the two sides of the fixing box and can realize heat dissipation and air permeation, thereby preventing line damage caused by high temperature inside the charging pile main body, the shielding plate is located on the top of the charging pile main body and can shield and protect the charging pile main body, thereby preventing the wiring from contacting water in rainy weather, and the alarm buzzer can emit a buzzing sound when the charging pile main body is abnormally charged, thereby facilitating the user to timely cut off the power supply. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an overall structural schematic view of the charging pile short circuit protection device.

[0017] Figure 2 It is a structural schematic view of the external protection assembly.

[0018] Figure 3 It is a structural schematic view of the alarm assembly of the utility model;

[0019] Figure 4 It is a structural schematic view of the protection assembly of the utility model.

[0020] In the figure: 1, charging pile main body; 2, outer protection assembly; 21, fixed box; 22, ventilation grille; 23, mounting groove; 24, mounting frame; 25, shielding plate; 26, cable rack; 3, alarm assembly; 31, alarm detector; 32, wiring pipe; 33, connecting wire; 34, threaded fixing ring; 35, mounting cover plate; 36, alarm buzzer; 37, key; 4, protection assembly; 41, circuit breaker; 42, mounting plate; 43, mounting bolt; 44, indicator; 45, control lever; 5, support seat; 6, charging wire; 7, charging connector. DETAILED DESCRIPTION

[0021] The utility model will be further explained in detail in combination with examples:

[0022] As Figures 1-4 shown, the utility model provides a charging pile short circuit protection device, including charging pile main body 1, the outside of charging pile main body 1 is provided with outer protection assembly 2, and outer protection assembly 2 includes fixed box 21, and fixed box 21 is fixedly installed at the top of charging pile main body 1, and both sides of fixed box 21 are provided with ventilation grille 22, and ventilation grille 22 can realize heat dissipation and ventilation, prevent the internal temperature of charging pile main body 1 from being higher and causing line damage, and mounting groove 23 is provided at the top of fixed box 21, and mounting frame 24 is fixedly installed at the top of fixed box 21, and shielding plate 25 is fixedly installed at the top of mounting frame 24, and shielding plate 25 can shield and protect charging pile main body 1, and rain weather prevents wiring place from contacting water, and cable rack 26 is fixedly installed at both sides of shielding plate 25, and alarm assembly 3 is provided at the top of fixed box 21, and alarm assembly 3 includes alarm detector 31, and alarm detector 31 is fixedly installed at the top of fixed box 21, and wiring pipe 32 is fixedly installed at one side of alarm detector 31, and key 37 is fixedly installed on the front of alarm detector 31, and threaded fixing ring 34 is threadedly connected to one end of wiring pipe 32, and rotating threaded fixing ring 34 can reinforce the connecting place of wiring pipe 32 and connecting wire 33, improve the stability when connecting wire 33 is connected, reduce the looseness of connecting wire 33, prevent the looseness of wiring place from short circuit, and connecting wire 33 is fixedly installed at one end of wiring pipe 32, and charging pile main body 1 can be connected to power supply through connecting wire 33, and mounting cover plate 35 is fixedly installed at the top of alarm detector 31, and alarm buzzer 36 is fixedly installed at the top of mounting cover plate 35;

[0023] The front of the alarm detector 31 is provided with a protection component 4, which includes a circuit breaker 41. The circuit breaker 41 is fixedly installed on the front of the alarm detector 31 and is electrically connected to the alarm detector 31. When the alarm detector 31 detects abnormal charging current and voltage, the circuit breaker 41 can automatically cut off the power supply to prevent damage to the charging pile body 1 and the vehicle and avoid accidents. Both ends of the circuit breaker 41 are fixedly connected to mounting plates 42. The front of the mounting plates 42 is threaded with mounting bolts 43. An indicator 44 is embedded in the front of the circuit breaker 41. A control lever 45 is rotatably connected to the front of the circuit breaker 41. A support base 5 is fixedly installed at the bottom of the fixed box 21. A charging cable 6 is fixedly installed on one side of the fixed box 21. A charging connector 7 is fixedly installed at one end of the charging cable 6. When the charging connector 7 is inserted into the charging port of the vehicle, the charging pile body 1 can charge the vehicle through the charging connector 7.

[0024] The working principle of the charging pile short circuit protection device will be explained in detail below.

[0025] like Figures 1-4 As shown, the charging pile body 1 is connected to the power supply via connecting cable 33. A threaded retaining ring 34 is threadedly connected to one end of the wiring conduit 32. Rotating the threaded retaining ring 34 reinforces the connection between the wiring conduit 32 and the connecting cable 33, improving the stability of the connection, reducing loosening, and preventing short circuits. During use, the operator controls the switch 37 to open and close the charging pile body 1, inserting the charging connector 7 into the vehicle's charging port. The charging pile body 1 then charges the vehicle through the charging connector 7. Ventilation grilles 22 are located on both sides of the mounting box 21, allowing for heat dissipation and ventilation to prevent excessive internal temperature of the charging pile body 1. In case of line damage, the alarm detector 31 monitors the voltage and current during charging in real time. The circuit breaker 41 is fixed on the front of the alarm detector 31 and is electrically connected to the alarm detector 31. When the alarm detector 31 detects abnormal charging current and voltage, the circuit breaker 41 can automatically cut off the power supply to prevent damage to the charging pile body 1 and the vehicle, and avoid accidents. The shield 25 is located on the top of the charging pile body 1 and can shield and protect the charging pile body 1. In rainy weather, it can prevent the wiring from coming into contact with water. When the charging pile body 1 is abnormally charging, the alarm buzzer 36 can emit a buzzing sound to facilitate the user to cut off the power in time.

[0026] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A charging pile short circuit protection device, comprising a charging pile main body (1), characterized in that: The external of the charging pile body (1) is provided with an external protection assembly (2), the external protection assembly (2) includes a fixed box (21), the fixed box (21) is fixedly installed on the external of the charging pile body (1), the top of the fixed box (21) is provided with an alarm assembly (3), the alarm assembly (3) includes an alarm detector (31), the alarm detector (31) is fixedly installed on the top of the fixed box (21), the front of the alarm detector (31) is provided with a protection assembly (4), the protection assembly (4) includes a circuit breaker (41), the circuit breaker (41) is fixedly installed on the front of the alarm detector (31), and the circuit breaker (41) is electrically connected with the alarm detector (31).

2. The short circuit protection device for charging pile according to claim 1, characterized in that: Both sides of the fixed box (21) are provided with air grilles (22), and the top of the fixed box (21) is provided with a mounting groove (23).

3. The short circuit protection device for charging pile according to claim 1, characterized in that: The top of the fixed box (21) is fixedly installed with a mounting frame (24), the top end of the mounting frame (24) is fixedly installed with a shielding plate (25), and both sides of the shielding plate (25) are fixedly installed with cable racks (26).

4. The short circuit protection device for charging pile according to claim 1, characterized in that: One side of the alarm detector (31) is fixedly installed with a wiring pipe (32), and the front of the alarm detector (31) is fixedly installed with a key (37).

5. The short circuit protection device for charging piles according to claim 4, characterized in that: One end of the wiring pipe (32) is threadedly connected with a threaded fixing ring (34), and one end of the wiring pipe (32) is fixedly installed with a connecting wire (33).

6. The short circuit protection device for charging piles according to claim 1, characterized in that: The top of the alarm detector (31) is fixedly installed with a mounting cover plate (35), and the top of the mounting cover plate (35) is fixedly installed with an alarm buzzer (36).

7. The short circuit protection device for charging piles according to claim 1, characterized in that: Both ends of the circuit breaker (41) are fixedly connected with mounting plates (42), the front of the mounting plate (42) is threadedly installed with mounting bolts (43), the front of the circuit breaker (41) is embeddedly installed with an indicating table (44), and the front of the circuit breaker (41) is rotatably connected with a control lever (45).

8. The short circuit protection device for charging piles according to claim 1, characterized in that: The bottom of the fixed box (21) is fixedly installed with a support seat (5), one side of the fixed box (21) is fixedly installed with a charging wire (6), and one end of the charging wire (6) is fixedly installed with a charging connector (7).

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