Charging pile with power supply switching function

Abstract

The utility model relates to the technical field of charging piles, in particular to a charging pile with a power supply switching function, and adopts the technical scheme that the charging pile comprises a charging pile body; the dual-power access module is arranged in the charging pile body, is used for being connected with an alternating-current power supply and comprises a high-voltage access system connected with a high-voltage power grid power supply and a mains supply access system connected with a mains supply power supply; and the switching controller is connected with the dual-power access module, is used for controlling the on-off of the alternating-current power supply, and comprises a circuit breaker. According to the utility model, the dual-power access module is arranged in the charging pile body, so that the charging pile can be connected with the high-voltage power grid and the commercial power at the same time and can be selectively conducted with the high-voltage power grid or the commercial power through the switching controller, and a high-voltage power grid power supply or a commercial power supply can be flexibly selected to supply power according to the actual charging demand; and the charging demand of a trip peak can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of charging piles, in particular to a charging pile with a power switching function. Background Art

[0002] With the popularity of electric vehicles, the demand for charging stations in highway service areas is growing, especially during peak holiday periods, when the number of new energy vehicles passing through service areas increases dramatically. Traditional charging stations are mostly connected to the mains electricity and use a fixed voltage for power supply, which makes it difficult to achieve fast charging. As a result, charging stations in service areas are unable to meet the massive electricity demand during peak holiday periods, and long queues are likely to occur waiting for charging, affecting the normal travel of people during holidays.

[0003] In view of this, we propose a charging pile with power switching function to solve the existing problem. Utility Model Content

[0004] The purpose of the present invention is to provide a charging pile with a power switching function to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a charging pile with a power switching function, comprising:

[0006] Charging pile body;

[0007] The dual power access module is installed inside the charging pile body and is used to connect to the AC power supply. It includes a high-voltage access system connected to the high-voltage grid power supply and a mains access system connected to the mains power supply.

[0008] A switching controller is connected to the dual power access module and is used to control the on and off of the AC power supply. The switching controller includes two circuit breakers, which respectively connect the switching controller to the high-voltage access system and the mains access system.

[0009] The rectifier is connected to the switching controller at one end and the charging gun at the other end, and is used to convert the AC power connected to the dual power access module into DC power and output it through the charging gun.

[0010] Preferably, the switching controller further comprises an opening and closing device, the opening and closing device is provided with two circuit breakers, and the working states of the two circuit breakers are mutually exclusive.

[0011] Preferably, the high voltage access system includes: the sub-box switch device includes:

[0012] An actuator, fixed to the opening and closing device and connected to the two circuit breakers, is used to drive the circuit breakers to complete the closing and opening operations;

[0013] The instruction receiver is connected to the actuator for communication and is used to receive the opening and closing operation instructions.

[0014] Preferably, the high voltage access system includes:

[0015] High-voltage isolation transformer, used to connect to high-voltage transmission lines;

[0016] High-voltage circuit breakers are installed between high-voltage isolation transformers and high-voltage transmission lines;

[0017] High-voltage filter, installed on the terminal of high-voltage isolation transformer, is used to filter current noise.

[0018] Preferably, the mains power access system includes:

[0019] Mains low-voltage transformer, used to connect to the mains power supply;

[0020] The low-voltage circuit breaker is installed between the mains low-voltage transformer and the mains power supply, and is used to cut off or connect the mains low-voltage transformer and the mains power supply;

[0021] The low-voltage filter is installed on the terminal of the mains low-voltage transformer to filter out the noise in the mains.

[0022] Preferably, the charging pile body also includes an electric energy metering module and a display screen. The electric energy metering module is arranged on the charging line between the rectifier and the charging gun, and the display screen is installed on the casing of the charging pile to record the electric energy output by the charging pile.

[0023] Preferably, the electric energy metering module also includes a WIFI module.

[0024] Compared with the existing technology, the beneficial effects of the present invention are: the present invention can connect to the high-voltage power grid and the mains at the same time by arranging a dual power access module inside the charging pile body, and can choose to be connected to the high-voltage power grid or the mains through a switching controller. According to the actual charging demand, the high-voltage power grid power supply or the mains power supply can be flexibly selected for power supply, which can meet the charging needs during peak travel periods. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the internal connection relationship structure framework of the utility model;

[0026] Figure 2 This is a schematic diagram of the overall structural framework of the utility model;

[0027] Figure 3 This is a simplified schematic diagram of the connection relationship structure framework of the utility model;

[0028] Figure 4This is a schematic diagram of the internal connection relationship structure framework of the switching controller of the present invention.

[0029] In the figure: 1. Dual power access module; 11. High-voltage access system; 111. High-voltage isolation transformer; 112. High-voltage circuit breaker; 113. High-voltage filter; 12. Mains access system; 121. Mains low-voltage transformer; 122. Low-voltage circuit breaker; 123. Low-voltage filter; 3. Switching controller; 31. Opening and closing device; 32. Actuator; 33. Command receiver; 34. Circuit breaker; 35. Rectifier; 4. Charging gun. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0031] Example 1

[0032] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the present invention proposes a charging pile with a power switching function, comprising:

[0033] Charging pile body;

[0034] The dual power access module 1 is provided inside the charging pile body and is used to connect to the AC power supply. It includes a high-voltage access system 11 connected to the high-voltage grid power supply and a mains access system 12 connected to the mains power supply.

[0035] The switching controller 3 is connected to the dual power access module 1 and is used to control the on and off of the AC power supply. The switching controller 3 includes two circuit breakers 34, which respectively connect the switching controller 3 to the high-voltage access system 11 and the mains access system 12;

[0036] The rectifier 35 has one end connected to the switching controller 3 and the other end connected to the charging gun 4, and is used to convert the AC power input into the dual power access module 1 into DC power and output it through the charging gun 4.

[0037] Furthermore, the switching controller 3 further includes an opening and closing device 31 , on which two circuit breakers 34 are provided, and the working states of the two circuit breakers 34 are mutually exclusive.

[0038] Specifically, the switching controller 3 controls the on / off switching of the two power sources through two circuit breakers 34. One circuit breaker 34 is connected to the high-voltage access system 11, and the other is connected to the mains access system 12. The two circuit breakers 34 on the opening and closing device 31 have mutually exclusive operating states. That is, when one circuit breaker 34 is closed, the other circuit breaker 34 must be open, thereby ensuring that only one power source supplies power to the rectifier 35 at a time.

[0039] Furthermore, the high voltage access system 11 includes: a sub-box switch device including:

[0040] The actuator 32 is fixed to the opening and closing device 31 and connected to the two circuit breakers 34 to drive the circuit breakers 34 to complete the closing and opening operations;

[0041] The instruction receiver 33 is in communication with the actuator 32 and is used to receive opening and closing operation instructions.

[0042] Furthermore, the high voltage access system 11 includes:

[0043] A high-voltage isolation transformer 111 is used for connecting to a high-voltage transmission line;

[0044] A high-voltage circuit breaker 112 is installed between the high-voltage isolation transformer 111 and the high-voltage transmission line;

[0045] The high-voltage filter 113 is installed on the connection terminals of the high-voltage isolation transformer 111 and is used to filter current noise.

[0046] Furthermore, the mains access system 12 includes:

[0047] A mains low-voltage transformer 121, for connecting to a mains power supply;

[0048] The low-voltage circuit breaker 122 is installed between the mains low-voltage transformer 121 and the mains power supply, and is used to cut off or connect the mains low-voltage transformer 121 and the mains power supply;

[0049] The low-voltage filter 123 is installed on the connection terminal of the mains low-voltage transformer 121 and is used to filter the noise in the mains.

[0050] Furthermore, the charging pile body also includes an energy metering module and a display screen. The energy metering module is arranged on the charging line between the rectifier 35 and the charging gun 4. The display screen is installed on the outer shell of the charging pile to record the power output of the charging pile, making it convenient for users and managers to understand the charging status.

[0051] Furthermore, the electric energy metering module also includes a WIFI module, so that the charging pile body can wirelessly communicate with the user device or remote server through the Internet, interactively transmit charging status information, upload data or receive instructions.

[0052] The working principle of the charging pile with power switching function based on Example 1 is: the preferred layout scenario of this example is a highway service area. When the charging pile body is connected to the power supply, according to the density of vehicles traveling at that time, it is selected to connect to the mains power supply during daily time periods, and during the peak travel period on holidays, it is selected to connect to the high-voltage grid power supply for power supply. By increasing the input power of the input charging pile body, the charging pile can output a correspondingly larger charging power, quickly charge the vehicle, improve the charging efficiency of the charging pile, and alleviate the phenomenon of having to queue for charging during holidays due to the large number of traveling vehicles.

[0053] The switching controller 3 ensures that only one power source is connected to the rectifier 35 by controlling the working status of the two circuit breakers 34, thereby ensuring the safety of the charging pile body. The rectifier 35 converts the connected AC power into DC power and outputs it through the charging gun 4.

[0054] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A charging pile with a power switching function, characterized in that: include: Charging pile body; A dual power access module (1) is arranged inside the charging pile body and is used to connect to an AC power source, comprising a high-voltage access system (11) connected to a high-voltage grid power source and a mains access system (12) connected to a mains power source; A switching controller (3) is connected to the dual power access module (1) and is used to control the on and off of the AC power supply. The switching controller (3) comprises a circuit breaker (34). The circuit breakers (34) are provided in two numbers. The two circuit breakers (34) respectively connect the switching controller (3) to the high voltage access system (11) and the mains access system (12). The rectifier (35) has one end connected to the switching controller (3) and the other end connected to the charging gun (4), and is used to convert the alternating current connected to the dual power supply access module (1) into direct current and output it through the charging gun (4).

2. The charging pile with power switching function according to claim 1, characterized in that: The switching controller (3) further comprises an opening and closing device (31), on which two circuit breakers (34) are provided, and the working states of the two circuit breakers (34) are mutually exclusive.

3. The charging pile with power switching function according to claim 2, characterized in that: The high-voltage access system (11) comprises: the opening and closing device (31) comprises: An actuator (32) is fixed on the opening and closing device (31) and connected to the two circuit breakers (34), and is used to drive the circuit breakers (34) to operate and complete the closing and opening operations; A command receiver (33) is communicatively connected to the actuator (32) and is used to receive opening and closing operation commands.

4. The charging pile with power switching function according to claim 1, characterized in that: The high voltage access system (11) comprises: A high-voltage isolation transformer (111), used for connection with a high-voltage transmission line; A high-voltage circuit breaker (112) is installed between the high-voltage isolation transformer (111) and the high-voltage transmission line; The high-voltage filter (113) is installed on the connection terminal of the high-voltage isolation transformer (111) and is used to filter current noise.

5. The charging pile with power switching function according to claim 1, characterized in that: The mains access system (12) comprises: A mains low-voltage transformer (121), used for connecting to a mains power supply; The low-voltage circuit breaker (122) is installed between the mains low-voltage transformer (121) and the mains power supply, and is used to cut off or connect the mains low-voltage transformer (121) and the mains power supply; The low-voltage filter (123) is installed on the connection terminal of the mains low-voltage transformer (121) and is used to filter the noise in the mains.

6. The charging pile with power switching function according to claim 1, characterized in that: The charging pile body also includes an electric energy metering module and a display screen. The electric energy metering module is arranged on the charging line between the rectifier (35) and the charging gun (4). The display screen is installed on the outer shell of the charging pile to record the electric energy output by the charging pile.

7. The charging pile with power switching function according to claim 6, characterized in that: The electric energy metering module also includes a WIFI module.

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