Efficient heat dissipation and cooling system for liquid cooling charging pile group

Abstract

The invention discloses an efficient heat dissipation and cooling system for a liquid cooling charging pile group, and relates to the technical field of liquid cooling charging piles, the efficient heat dissipation and cooling system comprises a liquid cooling module, a heat dissipation module and a temperature control module, the liquid cooling module comprises a liquid cooling plate, a water pump, a water tank and a cooling box, and a cooling liquid circulating pipeline is arranged in the liquid cooling plate; the input end of the cooling liquid circulating pipeline is fixedly connected with the output end of the water pump, the output end of the cooling liquid circulating pipeline is fixedly connected with the input end of the water tank, the input end of the water pump is fixedly connected with the output end of the water tank, the bottom of the water tank is fixedly connected with the cooling box, and the heat dissipation module comprises a liquid nitrogen cooling module and a heat conduction plate. The heat conduction plate is located on the outer wall of the cooling box, and the liquid nitrogen cooling module is located on the outer side of the heat conduction plate. Through mutual cooperation of the liquid cooling module and the heat dissipation module, rapid cooling and heat dissipation of cooling water of the liquid cooling charging pile are achieved, so that the low-temperature state of the cooling liquid every time is guaranteed, and normal heat dissipation is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid-cooled charging piles, and in particular to a high-efficiency heat dissipation cooling system for a liquid-cooled charging pile group. Background Art

[0002] Liquid-cooled charging piles are charging facilities that use liquid circulation cooling technology. Compared with traditional air-cooled charging piles, liquid-cooled charging piles have higher charging power and better heat dissipation performance. Its working principle is to effectively remove the heat generated during the charging process through a liquid circulation system, thereby achieving a fast and stable charging process. Specifically, the liquid-cooled charging pile sets up a special liquid circulation channel between the cable and the charging gun, and adds coolant to the channel to dissipate heat. The coolant circulation is driven by a power pump to remove the heat generated during the charging process. The following problems exist in the existing technology:

[0003] Because the liquid cooling heat dissipation system of the existing liquid-cooled charging pile can only discharge the heat of the coolant through the fan after the coolant completes the circulation, and the heat dissipation efficiency is slow, so that the temperature of the coolant returning to the cooling pipe cannot be maintained at the lowest, resulting in a decrease in the heat dissipation efficiency and inability to dissipate efficient heat. In addition, the liquid cooling heat dissipation system of the existing liquid-cooled charging pile cannot adjust the power according to temperature changes, thereby increasing the heat dissipation power and energy consumption. Summary of the invention

[0004] The present invention provides a liquid-cooled charging pile group high-efficiency heat dissipation cooling system to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A liquid-cooled charging pile group high-efficiency heat dissipation cooling system, comprising a liquid cooling module, a heat dissipation module, and a temperature control module. The liquid cooling module comprises a liquid cooling plate, a water pump, a water tank, and a cooling box. A coolant circulation pipeline is arranged inside the liquid cooling plate. The input end of the coolant circulation pipeline is fixedly connected to the output end of the water pump, the output end of the coolant circulation pipeline is fixedly connected to the input end of the water tank, the input end of the water pump is fixedly connected to the output end of the water tank, the bottom of the water tank is fixedly connected to the cooling box, the heat dissipation module comprises a liquid nitrogen cooling module and a heat conducting plate, the heat conducting plate is located on the outer wall of the cooling box, the liquid nitrogen cooling module is located on the outside of the heat conducting plate, and the temperature control module comprises a temperature sensor, a controller, an actuator, a communication module, a data acquisition and storage module, and a safety protection module.

[0007] A further improvement of the technical solution of the present invention is that the liquid cooling module executes the following contents: by connecting a water pump to one of the inner cavities of a water tank which is divided into two inner cavities, the internal cold water passes through a coolant circulation pipe to cool the liquid cooling plate in the charging pile, and absorbs the heat in the charging pile, thereby increasing the water temperature, and is discharged into the other inner cavity of the water tank after circulation.

[0008] A further improvement of the technical solution of the present invention is that the heat dissipation module executes the following contents: hot water enters another inner cavity of the water tank and then directly enters the cooling box, the heat is conducted through the metal heat conduction plate on the outer wall of the cooling box, and the liquid nitrogen is used to quickly cool the box that is completely wrapped by the outside of the cooling box, and the cooling water is re-injected into the inner cavity of the water tank for output in cooperation with the pump body, and is quickly cooled and circulated.

[0009] A further improvement of the technical solution of the present invention is that: the temperature control module is arranged in the inner cavity of the charging pile to detect the internal temperature in real time, and the temperature inside the charging pile is converted into a measurable electrical signal through a PTC thermistor, and then the electrical signal from the temperature sensor is received through the controller, and the built-in microprocessor is used to analyze and process according to a preset algorithm or program logic, and finally output a control instruction.

[0010] A further improvement of the technical solution of the present invention is that the actuator can directly adjust the temperature of the target environment according to the instructions of the controller, specifically by controlling the water delivery speed of the water pump and the cooling power of the liquid nitrogen cooling module, and the cooling speed increases with the increase of temperature.

[0011] A further improvement of the technical solution of the present invention is that the communication module enables the temperature control module to transmit data and exchange instructions with other devices or host computers, supports RS485, Modbus communication protocols, and Wi-Fi wireless communication, and can perform remote monitoring, parameter setting, and fault diagnosis.

[0012] A further improvement of the technical solution of the present invention is that the data acquisition and storage module is responsible for recording the temperature data, control parameters and fault information during the operation of the temperature control module, providing data support for the system's performance evaluation, fault diagnosis and optimization and upgrading, using cloud storage technology to save these data, and supporting historical data query, report generation and data export functions.

[0013] A further improvement of the technical solution of the present invention is that the safety protection module includes over-temperature protection, under-temperature protection, over-current protection, short-circuit protection and emergency stop switch functions, and automatically cuts off the power supply or adjusts the control strategy under abnormal circumstances.

[0014] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art:

[0015] 1. The present invention provides a high-efficiency heat dissipation cooling system for a liquid-cooled charging pile group. Through the mutual cooperation between the liquid cooling module and the heat dissipation module, the rapid cooling and heat dissipation of the cooling water of the liquid-cooled charging pile can be achieved, thereby ensuring the low temperature state of the coolant each time and ensuring the normal heat dissipation.

[0016] 2. The present invention provides an efficient heat dissipation cooling system for a group of liquid-cooled charging piles. Through the cooperation between temperature sensors, controllers, actuators, and communication modules, the temperature of the liquid-cooled charging piles can be monitored in real time, and the power of equipment such as water pumps can be adjusted according to the temperature, thereby saving power consumption, reducing heat dissipation costs, and achieving efficient heat dissipation.

[0017] 3. The present invention provides a liquid-cooled charging pile group efficient heat dissipation cooling system, through the mutual cooperation between the data acquisition and storage module and the safety protection module, so that the temperature data can be stored, which is convenient for subsequent analysis and processing. At the same time, it cooperates with the safety protection module to realize the safety protection of the liquid-cooled charging piles and protect the safe use of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the system structure of the present invention. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with embodiments:

[0020] Example 1

[0021] like Figure 1 As shown, the present invention provides an efficient heat dissipation cooling system for a liquid-cooled charging pile group, including a liquid cooling module, a heat dissipation module, and a temperature control module. The liquid cooling module includes a liquid cooling plate, a water pump, a water tank, and a cooling box. A coolant circulation pipeline is arranged inside the liquid cooling plate, the input end of the coolant circulation pipeline is fixedly connected to the output end of the water pump, the output end of the coolant circulation pipeline is fixedly connected to the input end of the water tank, the input end of the water pump is fixedly connected to the output end of the water tank, the bottom of the water tank is fixedly connected to the cooling box, the heat dissipation module includes a liquid nitrogen cooling module and a heat conducting plate, the heat conducting plate is located on the outer wall of the cooling box, the liquid nitrogen cooling module is located on the outside of the heat conducting plate, and the temperature control module includes a temperature sensor, a controller, an actuator, a communication module, a data acquisition and storage module, and a safety protection module.

[0022] Example 2

[0023] like Figure 1As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the liquid cooling module executes the following contents: by connecting a water pump to one of the inner cavities of a water tank divided into two inner cavities, the internal cold water is passed through a coolant circulation pipe to cool the liquid cooling plate in the charging pile, and the heat in the charging pile is absorbed, thereby increasing the water temperature, and after circulation, it is discharged into the other inner cavity of the water tank, and the heat dissipation module executes the following contents: the hot water entering the other inner cavity of the water tank will directly enter the cooling box again, the heat will be conducted through the metal heat conduction plate on the outer wall of the cooling box, and the outer side of the cooling box is used to completely wrap the box to quickly cool it with liquid nitrogen, and then the pump body is used to re-inject the cooling water into the inner cavity of the water tank for output, and quickly cool and circulate it.

[0024] In this embodiment, when the cooling water is cooled in the cooling box, it is also monitored by the temperature control module, and calculations are made according to the cooling time to set a time range for timely using the pump body to pump out the cooling water to prevent the cooling water from freezing.

[0025] Example 3

[0026] like Figure 1 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the temperature control module is arranged in the inner cavity of the charging pile to detect the internal temperature in real time, and the temperature inside the charging pile is converted into a measurable electrical signal through a PTC thermistor, and then the electrical signal from the temperature sensor is received through the controller, and the built-in microprocessor is used to analyze and process according to a preset algorithm or program logic, and finally a control instruction is output. The actuator can directly adjust the temperature of the target environment according to the instruction of the controller, specifically by controlling the water delivery speed of the water pump and the cooling power of the liquid nitrogen cooling module. The cooling speed increases with the increase of temperature. The communication module enables the temperature control module to transmit data and exchange instructions with other devices or host computers, supports RS485, Modbus communication protocols, and Wi-Fi wireless communications, and can perform remote monitoring, parameter setting, and fault diagnosis.

[0027] In this embodiment, the controller has a high degree of programmability and flexibility, and can implement complex temperature control strategies, such as PID control, fuzzy control, etc., to achieve the purpose of precise temperature control. The communication module greatly improves the convenience and maintainability of the system.

[0028] Example 4

[0029] like Figure 1As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the data acquisition and storage module is responsible for recording the temperature data, control parameters and fault information during the operation of the temperature control module, providing data support for the performance evaluation, fault diagnosis and optimization and upgrading of the system, using cloud storage technology to save these data, supporting historical data query, report generation and data export functions, and facilitating users to perform subsequent data analysis and processing; the safety protection module includes over-temperature protection, under-temperature protection, over-current protection, short-circuit protection and emergency stop switch functions, which automatically cuts off the power supply or adjusts the control strategy under abnormal circumstances to prevent equipment damage, fire and other safety accidents, ensuring that the temperature control system can still operate safely under extreme conditions and protect the safety of personnel and equipment.

[0030] The following is a detailed description of the working principle of the efficient heat dissipation cooling system of the liquid-cooled charging pile group.

[0031] like Figure 1 As shown, the water tank has two cavities, one for temporarily storing cold water and the other for temporarily storing hot water. The middle partition is separated by a plywood with heat insulation cotton. The water pump can output cold water to the coolant circulation pipe, and the coolant circulation pipe is located in the liquid cooling plate in the charging pile. Therefore, it can absorb the heat in the charging pile. The cold water will gradually become hotter during the flow until it flows into one of the hot water cavities in the water tank and directly flows into the cooling box. The heat is transferred by the heat conduction plate and quickly cooled by the liquid nitrogen cooling module. Then another water pump is started to pump the cold water to the cold water cavity of the water tank again for continued circulation. The cooling system uses the temperature control module to realize real-time temperature monitoring, store data, automatically control the heat dissipation efficiency, and avoid long-term high-power operation of equipment such as water pumps.

[0032] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A liquid-cooled charging pile group high-efficiency heat dissipation cooling system, characterized by: It includes a liquid cooling module, a heat dissipation module, and a temperature control module. The liquid cooling module includes a liquid cooling plate, a water pump, a water tank, and a cooling box. A coolant circulation pipeline is arranged inside the liquid cooling plate. The input end of the coolant circulation pipeline is fixedly connected to the output end of the water pump, the output end of the coolant circulation pipeline is fixedly connected to the input end of the water tank, the input end of the water pump is fixedly connected to the output end of the water tank, the bottom of the water tank is fixedly connected to the cooling box, the heat dissipation module includes a liquid nitrogen cooling module and a heat conducting plate, the heat conducting plate is located on the outer wall of the cooling box, the liquid nitrogen cooling module is located on the outside of the heat conducting plate, and the temperature control module includes a temperature sensor, a controller, an actuator, a communication module, a data acquisition and storage module, and a safety protection module.

2. According to claim 1, a liquid-cooled charging pile group high-efficiency heat dissipation cooling system is characterized by: The execution of the liquid cooling module includes the following: connecting a water pump to one of the two inner cavities of a water tank, passing the internal cold water through a coolant circulation pipe to cool the liquid cooling plate in the charging pile, and absorbing the heat in the charging pile, thereby increasing the water temperature, and discharging it into the other inner cavity of the water tank after circulation.

3. According to claim 1, a liquid-cooled charging pile group high-efficiency heat dissipation cooling system is characterized by: The heat dissipation module executes the following contents: hot water enters another inner cavity of the water tank and then directly enters the cooling box. The heat is conducted through the metal heat conduction plate on the outer wall of the cooling box, and the liquid nitrogen is used to quickly cool the box that is completely wrapped by the outside of the cooling box. The cooling water is then re-injected into the inner cavity of the water tank for output in cooperation with the pump body, and is quickly cooled and circulated.

4. According to claim 1, a liquid-cooled charging pile group high-efficiency heat dissipation cooling system is characterized by: The temperature control module is arranged in the inner cavity of the charging pile to monitor the internal temperature in real time, convert the temperature inside the charging pile into a measurable electrical signal through a PTC thermistor, and then receive the electrical signal from the temperature sensor through the controller, and use its own microprocessor to analyze and process according to a preset algorithm or program logic, and finally output a control instruction.

5. According to claim 1, a liquid-cooled charging pile group high-efficiency heat dissipation cooling system is characterized by: The actuator can directly adjust the temperature of the target environment according to the instructions of the controller, specifically by controlling the water delivery speed of the water pump and the cooling power of the liquid nitrogen cooling module. The cooling speed increases as the temperature increases.

6. The liquid-cooled charging pile group efficient heat dissipation cooling system according to claim 1 is characterized by: The communication module enables the temperature control module to transmit data and exchange commands with other devices or host computers, supports RS485, Modbus communication protocols, and Wi-Fi wireless communications, and can perform remote monitoring, parameter setting, and fault diagnosis.

7. According to claim 1, a liquid-cooled charging pile group high-efficiency heat dissipation cooling system is characterized by: The data acquisition and storage module is responsible for recording the temperature data, control parameters and fault information during the operation of the temperature control module, providing data support for the system's performance evaluation, fault diagnosis and optimization and upgrading, using cloud storage technology to save these data, and supporting historical data query, report generation and data export functions.

8. The liquid-cooled charging pile group efficient heat dissipation cooling system according to claim 1 is characterized by: The safety protection module includes over-temperature protection, under-temperature protection, over-current protection, short-circuit protection and emergency stop switch functions, which automatically cut off the power supply or adjust the control strategy under abnormal circumstances.

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