An adjustable charging pile liquid cooling circulating device

Abstract

The utility model discloses an adjustable charging pile liquid cooling circulation device relates to charging pile liquid cooling circulation technical field, including bottom plate, the upper end of bottom plate is installed with liquid storage tank, the liquid outlet of liquid storage tank is fixedly connected with one long -tube, the other end fixed communication of one long -tube has electric regulating valve, the upper end of bottom plate is installed with heat exchanger, the upper end of bottom plate is installed with circulating pump, the first liquid inlet fixed communication of heat exchanger upper end has one connecting pipe. The utility model, through the synergic regulation of electric regulating valve, circulating pump and temperature regulation unit, realize the multidimensional accurate control of cooling liquid flow, circulation speed, temperature, and adapt to the different charging power demand of charging pile, when charging pile high -power operation, the flow and circulation speed are promoted fast, and the refrigeration power is strengthened, and the temperature of heating component is controlled.

Description

Technical Field

[0001] This utility model relates to the field of liquid cooling circulation technology for charging piles, and in particular to an adjustable liquid cooling circulation device for charging piles. Background Technology

[0002] With the rapid development of new energy vehicles, the penetration rate of charging piles is constantly increasing, especially the demand for high-power fast charging piles. During operation, high-power charging piles generate a lot of heat in components such as charging modules, charging guns, and terminal connectors. If heat cannot be dissipated in a timely and effective manner, the equipment temperature will rise, which will not only reduce charging efficiency and shorten the service life of the equipment, but may also cause safety hazards such as leakage and short circuits, and in severe cases, even cause fire accidents.

[0003] However, in existing technologies, the heat dissipation adjustment precision is low, and most of them are fixed flow or single-dimensional adjustment modes, which cannot adapt to the heat dissipation requirements of different power ranges. At high power, insufficient heat dissipation leads to overheating of components, while at low power, energy consumption is seriously wasted, and the heat dissipation effect will be significantly reduced, affecting the stability of the equipment. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing an adjustable liquid cooling circulation device for charging piles.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an adjustable charging pile liquid cooling circulation device, comprising a base plate, a liquid storage tank installed at the upper end of the base plate, a first long pipe fixedly connected to the outlet of the liquid storage tank, an electric regulating valve fixedly connected to the other end of the first long pipe, a heat exchanger installed at the upper end of the base plate, a circulation pump installed at the upper end of the base plate, a first connecting pipe fixedly connected to the first inlet at the upper end of the heat exchanger, and a second long pipe fixedly connected to the first outlet at the lower end of the heat exchanger.

[0006] Preferably, the other end of the second long pipe is fixed to the inlet of the storage tank, and the other end of the first connecting pipe is connected to the outlet of the circulating pump.

[0007] Preferably, it also includes a control module, a detection module, an adjustment module, and an alarm module. The detection module, adjustment module, and alarm module are all electrically connected to the control module, and the control module is used to receive parameters from the detection module.

[0008] Preferably, a thermometer is installed through the upper end of the liquid storage tank, and the electric regulating valve, the circulating pump and the thermometer are signal-connected to the regulating module. The electric regulating valve is used to regulate the flow rate of the coolant.

[0009] Preferably, a temperature regulating unit is installed at the upper end of the base plate, a second connecting pipe is fixedly connected to the second liquid outlet at the lower end of the heat exchanger, and a concave pipe is fixedly connected to the second liquid inlet at the upper end of the heat exchanger.

[0010] Preferably, the other end of the second connecting pipe is connected to the liquid inlet of the temperature regulating unit, and the other end of the concave pipe is fixed to the liquid outlet of the temperature regulating unit.

[0011] Preferably, the temperature regulating unit is signal-connected to the control module, and the temperature regulating unit is used to regulate the cooling or heating range of the coolant.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, the coolant flow rate, circulation speed and temperature are precisely controlled in multiple dimensions through the coordinated adjustment of the electric regulating valve, the circulating pump and the temperature regulating unit. This adapts to the different charging power requirements of the charging pile. When the charging pile is running at high power, the flow rate and circulation speed are quickly increased and the cooling power is enhanced to ensure that the temperature of the heat-generating components is controlled.

[0013] 2. This utility model is equipped with multiple types of sensors such as temperature, flow rate, pressure, current and voltage to realize real-time monitoring of all parameters of coolant status, equipment operating load and temperature of heating components, providing reliable data support for precise adjustment; when the parameters exceed the safety threshold, the alarm module responds quickly and links the charging pile to reduce power / stop, avoiding equipment damage or fire risk caused by overheating, overpressure, etc. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of an adjustable liquid cooling circulation device for charging piles is provided for this utility model. Figure 2 A top view of an adjustable liquid cooling circulation device for charging piles is provided for this utility model. Figure 3 A partial perspective view of an adjustable liquid cooling circulation device for charging piles is provided for this utility model. Figure 4 This invention presents a system diagram of an adjustable liquid cooling circulation device for charging piles.

[0015] Legend: 1. Base plate; 2. Liquid storage tank; 3. Electric regulating valve; 4. Heat exchanger; 5. Circulating pump; 6. Connecting pipe No. 1; 7. Temperature regulating unit; 8. Connecting pipe No. 2; 9. Concave tube; 10. Long tube No. 1; 11. Long tube No. 2; 12. Thermometer. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] Example: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model provides an adjustable charging pile liquid cooling circulation device, including a base plate 1, a liquid storage tank 2 installed on the upper end of the base plate 1, a first long pipe 10 fixedly connected to the outlet of the liquid storage tank 2, an electric regulating valve 3 fixedly connected to the other end of the first long pipe 10, a heat exchanger 4 installed on the upper end of the base plate 1, a circulation pump 5 installed on the upper end of the base plate 1, a first connecting pipe 6 fixedly connected to the first inlet of the upper end of the heat exchanger 4, a second long pipe 11 fixedly connected to the first outlet of the lower end of the heat exchanger 4, the other end of the second long pipe 11 being fixed to the inlet of the liquid storage tank 2, and the other end of the first connecting pipe 6 being connected to the outlet of the circulation pump 5. It also includes a control module, a detection module, an adjustment module, and an alarm module. The detection module, adjustment module, and alarm module are all electrically connected to the control module. The control module receives parameters from the detection module, analyzes the deviation from the preset threshold through a built-in PID adjustment algorithm, generates a precise adjustment command, and sends it to the adjustment module. It also works in conjunction with the main controller of the charging pile to achieve coordinated control. When the parameter exceeds the threshold, the alarm module is triggered. It also supports data interaction with the human-machine interaction module. A thermometer 12 is installed through the upper end of the liquid storage tank 2. The electric regulating valve 3, the circulating pump 5, and the thermometer 12 are connected to the regulating module. The electric regulating valve 3 is used to regulate the flow rate of the coolant. A temperature regulating unit 7 is installed on the upper end of the base plate 1. The second liquid outlet at the lower end of the heat exchanger 4 is fixedly connected to a second connecting pipe 8. The second liquid inlet at the upper end of the heat exchanger 4 is fixedly connected to a concave pipe 9. The other end of the second connecting pipe 8 is connected to the liquid inlet of the temperature regulating unit 7. The other end of the concave pipe 9 is fixed to the liquid outlet of the temperature regulating unit 7. The temperature regulating unit 7 is connected to the control module signal. The temperature regulating unit 7 is used to adjust the cooling or heating range of the coolant.

[0019] The specific settings and functions of this embodiment are described below. The base plate 1 serves as the overall load-bearing foundation, providing stable installation support for each functional component. This effectively ensures the structural stability of the device during long-term operation and avoids problems such as loosening of pipe connections and displacement of components due to vibration and other factors. It is suitable for various installation scenarios, including outdoor and indoor charging piles. A liquid storage tank 2 is fixedly installed on the upper end of the base plate 1. The liquid storage tank 2 serves as the core for storing and transferring coolant. It is made of 304 stainless steel and has a sealed filling port at the top with a built-in filter screen to filter impurities in the coolant. A drain valve is provided at the bottom for regular cleaning of sediment in the tank. The outlet of the liquid storage tank 2 is fixedly connected to a first-length pipe 10 through a flange structure. The flange connection is sealed with an oil-resistant rubber sealing ring to prevent coolant leakage. The first-length pipe 10 is made of high-pressure resistant nylon tubing to ensure the sealing and safety of the coolant during transportation.

[0020] Flow regulation and circulation power structure: The other end of the first long pipe 10 is fixedly connected to an electric regulating valve 3 by a threaded connection. The electric regulating valve 3 is a DN20 electromagnetic regulating valve, which can realize continuous and precise regulation of coolant flow. The electric regulating valve 3 is connected to the regulating module and receives the flow regulation command issued by the regulating module. By changing the valve core opening, it controls the flow of coolant, thereby adapting to the heat dissipation requirements under different charging loads.

[0021] A circulation pump 5 is also fixedly installed on the upper end of the base plate 1. The circulation pump 5 is a three-phase asynchronous centrifugal pump, which provides stable power for the circulation of coolant. The circulation pump 5 is connected to the regulating module. The regulating module can change the speed of the circulation pump 5 by controlling the input frequency of the circulation pump 5, thereby changing the circulation speed of the coolant. The inlet of the circulation pump 5 is connected to the outlet of the electric regulating valve 3 through a pipe, and the outlet is fixedly connected to one end of the first connecting pipe 6. The first connecting pipe 6 uses the same high-pressure resistant nylon pipe as the first long pipe 10 to ensure the stability of the power transmission process.

[0022] Heat exchange and temperature regulation structure: A heat exchanger 4 is installed on the upper end of the base plate 1, corresponding to the side of the circulating pump 5. The heat exchanger 4 has a first liquid inlet and a second liquid inlet at the upper end, and a first liquid outlet and a second liquid outlet at the lower end, forming a dual-channel medium flow structure. The first liquid inlet is connected to the outlet of the circulating pump 5 through a first connecting pipe 6, which is used to introduce high-temperature coolant after absorbing heat from the heat-generating components. The first liquid outlet is fixedly connected to the inlet of the storage tank 2 through a second long pipe 11. The second long pipe 11 is also made of high-pressure resistant nylon tubing, and a one-way valve is provided on the pipe to prevent coolant backflow and ensure the one-way flow of the circulation loop.

[0023] A temperature regulating unit 7 is installed on the upper end of the base plate 1 next to the heat exchanger 4. The temperature regulating unit 7 is an integrated structure with a built-in electronic expansion valve (refrigeration component) and an electric heating tube (heating component). The electronic expansion valve is connected to the refrigeration circuit of the heat exchanger 4 and controls the refrigeration power by adjusting the refrigerant flow. It is embedded in the heat exchange chamber of the temperature regulating unit 7 and is used to heat the coolant. The temperature regulating unit 7 is connected to the control module and receives the temperature regulation command from the control module to realize bidirectional temperature regulation of the coolant.

[0024] The lower end of the heat exchanger 4 has a second liquid outlet connected to the liquid inlet of the temperature regulating unit 7 via a second connecting pipe 8, and the upper end has a second liquid inlet fixedly connected to the liquid outlet of the temperature regulating unit 7 via a concave pipe 9, forming a temperature regulating loop. The concave pipe 9 adopts a copper bent pipe structure, which can effectively reduce the pipe resistance and increase the contact area between the pipe and the air, thus helping to improve the heat dissipation effect.

[0025] The core structure for detection and control: The device is equipped with four major electrical control modules: a control module, a detection module, an adjustment module, and an alarm module. The detection module, adjustment module, and alarm module are all electrically connected to the control module, forming a closed-loop control system.

[0026] The control module uses a Siemens S7-200 PLC controller as its core, with a built-in PID control algorithm. It can quickly receive various parameters transmitted from the detection module, analyze deviations from preset thresholds, generate precise adjustment commands, and send them to the adjustment module. Simultaneously, the control module interacts with the charging pile's main controller via an RS485 communication interface, coordinating the control of the charging pile's power output. When detected parameters exceed safety thresholds, an alarm module is immediately triggered. It also supports data interaction with the human-machine interface module via an RS232 interface, displaying parameters in real time and receiving manual adjustment commands.

[0027] The detection module includes a temperature sensor 12 installed through the upper end of the liquid storage tank 2, a temperature sensor installed at the inlet and outlet of the liquid cooling channel and on the surface of the heating component, a flow sensor connected in series on the first long tube 10, a pressure sensor installed on the inner wall of the second long tube 11, and a current and voltage sensor connected to the power supply circuit of the charging pile, so as to realize multi-dimensional parameter acquisition.

[0028] The regulating module, acting as an actuator, is connected to the electric regulating valve 3, the circulating pump 5, the thermometer 12, and the temperature regulating unit 7. After receiving the regulating command from the control module, it regulates the flow rate by controlling the opening of the electric regulating valve 3, regulates the circulation speed by controlling the rotation speed of the circulating pump 5, and regulates the coolant temperature by controlling the operation of the cooling / heating components of the temperature regulating unit 7, thereby achieving multi-dimensional coordinated regulation.

[0029] Alarm module: Composed of a buzzer and a red LED warning light, it is electrically connected to the control module. The control module controls the buzzer to sound continuously and the LED warning light to flash. At the same time, it sends a signal to the main controller of the charging pile to control the charging pile to reduce power or stop, forming multiple safety protections.

[0030] The usage method and working principle of this device: Cyclic start: The circulating pump 5 drives the coolant in the storage tank 2 through the first long pipe 10, the electric regulating valve 3, and the first connecting pipe 6 into the first inlet of the heat exchanger 4, and then flows through the liquid cooling channel of the charging pile heating component to absorb heat. Heat exchange and temperature regulation: The high-temperature coolant after absorbing heat flows back to the heat exchanger 4, and works with the temperature regulation unit 7 (which forms a loop through the second connecting pipe 8 and the concave pipe 9) to complete the cooling / heating, ensuring that the coolant temperature is suitable for the operating conditions. Precise control: The detection module collects the coolant temperature (temperature instrument 12, etc.), flow rate, pressure and charging pile load parameters in real time and transmits them to the control module; after analyzing the deviation through the PID algorithm, the control module sends instructions to the adjustment module to adjust the opening of the electric regulating valve 3, the speed of the circulating pump 5 and the working status of the temperature regulating unit 7. Safety assurance: When parameters exceed the threshold, the control module triggers an audible and visual alarm, and links the charging pile to reduce power / shut down. Circulation return: The adjusted coolant returns to the storage tank 2 through the second long pipe 11, completing the circulation.

[0031] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. An adjustable liquid cooling circulation device for charging piles, comprising a base plate (1), characterized in that: A liquid storage tank (2) is installed on the upper end of the base plate (1). The outlet of the liquid storage tank (2) is fixedly connected to a first long pipe (10). The other end of the first long pipe (10) is fixedly connected to an electric regulating valve (3). A heat exchanger (4) is installed on the upper end of the base plate (1). A circulation pump (5) is installed on the upper end of the base plate (1). The first inlet of the heat exchanger (4) is fixedly connected to a first connecting pipe (6). The first outlet of the heat exchanger (4) is fixedly connected to a second long pipe (11).

2. The adjustable liquid cooling circulation device for charging piles according to claim 1, characterized in that: The other end of the second long pipe (11) is fixed to the inlet of the liquid storage tank (2), and the other end of the first connecting pipe (6) is connected to the outlet of the circulating pump (5).

3. The adjustable liquid cooling circulation device for charging piles according to claim 1, characterized in that: It also includes a control module, a detection module, an adjustment module, and an alarm module. The detection module, adjustment module, and alarm module are all electrically connected to the control module, which is used to receive parameters from the detection module.

4. The adjustable liquid cooling circulation device for charging piles according to claim 3, characterized in that: A thermometer (12) is installed through the upper end of the liquid storage tank (2). The electric regulating valve (3), the circulating pump (5) and the thermometer (12) are connected to the regulating module. The electric regulating valve (3) is used to regulate the flow rate of the coolant.

5. An adjustable liquid cooling circulation device for a charging pile according to claim 3, characterized in that: A temperature regulating unit (7) is installed on the upper end of the base plate (1), a second connecting pipe (8) is fixedly connected to the second liquid outlet at the lower end of the heat exchanger (4), and a concave pipe (9) is fixedly connected to the second liquid inlet at the upper end of the heat exchanger (4).

6. The adjustable liquid cooling circulation device for charging piles according to claim 5, characterized in that: The other end of the second connecting pipe (8) is connected to the liquid inlet of the temperature regulating unit (7), and the other end of the concave pipe (9) is fixed to the liquid outlet of the temperature regulating unit (7).

7. An adjustable liquid cooling circulation device for a charging pile according to claim 6, characterized in that: The temperature regulation unit (7) is connected to the control module via signal, and the temperature regulation unit (7) is used to adjust the cooling or heating range of the coolant.

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