A temperature control method and device for a fully liquid-cooled charging stack

Abstract

The present invention discloses a temperature control method and device for a fully liquid-cooled charging stack, aiming to solve the technical problem that the prior art lacks a temperature control solution for a fully liquid-cooled charging stack. The temperature control method involves obtaining the first and second coolant temperatures, determining the heat dissipation strategy based on the comparison result between the second coolant temperature and the set temperature, calculating the temperature proportional coefficient and further adjusting the heat dissipation state based on the absolute value of the difference between the temperature and 1. The temperature control device includes acquisition, temperature comparison, heat dissipation adjustment and heat dissipation execution modules, which rely on temperature sensors arranged on the front and rear pipes of the coolant heat dissipation to obtain temperature data, and realizes precise control of the output power of the cooling fan through a comparison module with an adjustable threshold and corresponding calculation and execution modules.

Description

Technical Field

[0001] The present invention relates to the field of power electronics technology, and in particular to a temperature control method and device for a fully liquid-cooled charging stack. Background Art

[0002] Under the grand background of the global commitment to energy structure transformation, the new energy vehicle industry is in a booming trend of rapid development. With its outstanding advantages in environmental protection, energy efficiency improvement and promotion of green travel, the market share of new energy vehicles continues to rise, and technological innovations emerge in an endless stream. As a key link in the new energy vehicle industry chain, the development of charging piles plays an indispensable supporting role in the widespread popularization and efficient application of new energy vehicles. With the rapid advancement of new energy vehicle technology, its cruising range continues to increase. This positive change not only brings users a longer travel distance, but also puts higher requirements on charging piles. In order to adapt to the development pace of new energy vehicles, charging piles must achieve corresponding improvements in performance, including charging speed, charging efficiency, stability, safety, environmental adaptability and other key dimensions.

[0003] At present, the widely used air-cooled charging pile technology in the market has gradually exposed many disadvantages that are difficult to ignore in the face of the growing charging demand for new energy vehicles. Air-cooled charging piles will generate a lot of noise during operation, affecting the user experience during charging. At the same time, the failure rate of air-cooled charging piles is relatively high, requiring manpower and material resources for maintenance, which increases operating costs and reduces the availability and reliability of equipment, affecting the normal supply of charging services. In addition, there are inherent limitations in the heat dissipation efficiency of air-cooling technology. When charging at high power for a long time, the heat generated inside the equipment cannot be dissipated in a timely and effective manner, resulting in longer charging time. More seriously, the problem of overheating of the equipment will not only accelerate the aging and damage of electrical components and shorten the service life of the equipment, but may also cause safety hazards such as electrical short circuits and fires. At the same time, the overheating environment will also have a negative impact on the batteries of new energy vehicles, accelerate the degradation of battery performance, and shorten the battery cycle life.

[0004] In order to overcome these problems of air-cooled charging piles, the technology of fully liquid-cooled charging piles came into being. Fully liquid-cooled charging piles utilize the excellent thermophysical properties of liquid cooling media, and show significant advantages in reducing noise, reducing failure rate, improving heat dissipation efficiency, and ensuring charging safety. The main heat source of the fully liquid-cooled charging pile system is the liquid-cooled power module. The heat dissipation principle of the system is that the low-temperature coolant in the water tank flows into the liquid-cooled power module through the power pump, taking away the heat of the liquid-cooled power module, and the high-temperature coolant flows out of the liquid-cooled power module into the liquid cooling system. The liquid cooling system dissipates heat through the heat sink + heat dissipation fan, and the low-temperature coolant that has been dissipated flows into the water tank, which is a cycle. The following is a study on the temperature control strategy of the coolant for the fully liquid-cooled charging pile. In order to give full play to the technical advantages of the fully liquid-cooled charging pile, ensure its stable, efficient and safe operation under a variety of working conditions and environmental conditions, and meet the growing charging needs of new energy vehicles, a temperature control solution for the fully liquid-cooled charging pile is needed to achieve fine management and scientific regulation of the temperature of the coolant in the fully liquid-cooled charging pile. Summary of the invention

[0005] The purpose of the present invention is to provide a temperature control method and device for a fully liquid-cooled charging stack, so as to overcome the deficiency of the prior art that there is a lack of a temperature control solution for a fully liquid-cooled charging stack.

[0006] In order to achieve the above object, the present invention adopts the following technical solution: A temperature control method for a fully liquid-cooled charging stack, comprising: Acquire a first coolant temperature and a second coolant temperature; If the temperature of the second coolant is lower than the set temperature, a constant heat dissipation state is maintained; If the second coolant temperature is greater than the set temperature, then calculating the temperature proportionality coefficient between the first coolant temperature and the second coolant temperature; The heat dissipation state is adjusted according to the absolute value of the difference between the temperature proportional coefficient and 1.

[0007] The first coolant temperature and the second coolant temperature are acquired through a temperature sensor.

[0008] If the temperature of the second coolant is lower than the set temperature, the constant heat dissipation state is maintained, and the fan speed duty cycle is 15% in the constant heat dissipation state.

[0009] If the second coolant temperature is greater than the set temperature, the temperature proportionality coefficient between the first coolant temperature and the second coolant temperature is calculated. The temperature proportionality coefficient is calculated according to the following formula:

[0010] Wherein, U(t) is the second coolant temperature, e(t) is the first coolant temperature, and Kp is the temperature proportionality coefficient.

[0011] The set temperature range is 40℃ to 50℃.

[0012] The step of adjusting the heat dissipation state according to the absolute value of the difference between the temperature proportional coefficient and 1 includes: Calculate the absolute value of the difference between the temperature proportionality coefficient and 1; If the absolute value is greater than 1, a constant heat dissipation state is maintained; If the absolute value is within the interval range of 0.15 to 1, the duty cycle of the fan speed is set to the absolute value multiplied by 100%.

[0013] A temperature control device for a fully liquid-cooled charging stack, comprising: An acquisition module, used for acquiring a first coolant temperature and a second coolant temperature; A temperature comparison module, used for comparing the second coolant temperature with the set temperature and outputting the comparison result; The heat dissipation adjustment module is used to receive the comparison result and calculate the temperature proportionality coefficient and the absolute value of the difference between the temperature proportionality coefficient and 1, and output the absolute value of the difference between the temperature proportionality coefficient and 1.

[0014] The heat dissipation execution module is used to receive the absolute value of the difference between the temperature proportionality coefficient and 1, and adjust the output power of the heat dissipation device.

[0015] The acquisition module includes a first temperature sensor and a second temperature sensor. The first temperature sensor is arranged on the pipeline through which the coolant flows before heat dissipation to obtain a first coolant temperature. The second temperature sensor is arranged on the pipeline through which the coolant flows after heat dissipation to obtain a second coolant temperature.

[0016] The threshold of the set temperature in the temperature comparison module can be adjusted within the range of 40°C to 50°C.

[0017] The heat dissipation device in the heat dissipation execution module is a heat dissipation fan.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects: A temperature control method for a fully liquid-cooled charging stack achieves efficient and precise control of the heat dissipation of the fully liquid-cooled charging stack by accurately obtaining the first coolant temperature and the second coolant temperature, and flexibly adjusting the heat dissipation state according to the comparison result between the first coolant temperature and the second coolant temperature and the set temperature. When the temperature is low, a constant heat dissipation of 15% duty cycle is maintained to avoid energy waste caused by excessive heat dissipation; when the temperature rises, the fan speed duty cycle is dynamically adjusted according to the absolute value of the difference between the temperature proportional coefficient and 1, so that the heat dissipation can closely follow the change of the coolant temperature. This method can not only ensure that the charging stack can maintain a stable operating temperature under different working conditions, effectively prevent equipment damage and performance degradation caused by overheating, and extend the service life of the equipment, but also reduce energy consumption and improve energy utilization through reasonable heat dissipation control, which provides a strong guarantee for the stable operation, efficient operation and long-term reliability of the fully liquid-cooled charging stack, greatly improves the practicality and adaptability of the fully liquid-cooled charging stack in the field of new energy vehicle charging, and helps to promote the development and popularization of new energy vehicle charging technology.

[0019] A temperature control device for a fully liquid-cooled charging stack, wherein the first temperature sensor and the second temperature sensor in the acquisition module can accurately collect key temperature data of the coolant before and after heat dissipation, providing an accurate information basis for the entire temperature control process. The temperature comparison module can flexibly adjust the set temperature threshold within the range of 40°C to 50°C, so that it can adapt to a variety of working environments and working conditions. The heat dissipation adjustment module quickly and accurately calculates the temperature proportional coefficient and the absolute value of the related difference based on the comparison results, and provides accurate instructions for the heat dissipation execution module. The heat dissipation execution module uses a heat dissipation fan as a heat dissipation device, and flexibly adjusts the fan speed duty cycle according to the received instructions, thereby accurately controlling the heat dissipation power. This device can effectively cope with the heat dissipation challenges of the fully liquid-cooled charging stack under different ambient temperatures and working conditions, ensure the stable operation of the charging stack, reduce the equipment failure rate, and reduce the safety hazards caused by abnormal temperature. At the same time, it optimizes the heat dissipation efficiency, reduces energy consumption and operating costs, and improves the overall performance and reliability of the fully liquid-cooled charging stack, providing stable, efficient and safe temperature control guarantees for the charging services of new energy vehicles, with significant economic and social benefits, and effectively promoting the healthy development of the new energy vehicle industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of a temperature control method for a fully liquid-cooled charging stack in an embodiment of the present invention.

[0021] Figure 2 This is a schematic diagram of adjusting the heat dissipation state according to the absolute value of the difference between the temperature proportional coefficient and 1 in a temperature control method for a fully liquid-cooled charging stack in an embodiment of the present invention.

[0022] Figure 3 Schematic diagram of a temperature control device for a fully liquid-cooled charging stack in an embodiment of the present invention. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0027] Embodiment 1: A full liquid-cooled charging stack is provided in a specific embodiment of the present invention, and the charging stack is based on a full liquid-cooled charging stack temperature control device. The charging stack is composed of a liquid-cooled power module, a liquid cooling system, a water tank, a power pump and a heat dissipation device, wherein the heat dissipation device includes a heat sink and a fan. The liquid-cooled power module, as the main heat source, will generate a large amount of heat during the charging process. The water tank is used to store coolant, and the power pump provides power for the coolant circulation, so that the coolant can circulate in the system and take away the heat generated by the liquid-cooled power module. The heat dissipation device performs heat dissipation treatment on the high-temperature coolant flowing out of the liquid-cooled power module, so that the temperature is reduced and then flows back to the water tank, forming a complete coolant circulation and heat dissipation system.

[0028] Based on such a fully liquid-cooled charging stack structure, Figure 3 As shown, the temperature control device includes: An acquisition module, used for acquiring a first coolant temperature and a second coolant temperature; A temperature comparison module, used for comparing the second coolant temperature with the set temperature and outputting the comparison result; A heat dissipation adjustment module, used for receiving the comparison result and calculating the temperature proportionality coefficient and the absolute value of the difference between the temperature proportionality coefficient and 1, and outputting the absolute value of the difference between the temperature proportionality coefficient and 1; The heat dissipation execution module is used to receive the absolute value of the difference between the temperature proportionality coefficient and 1, and adjust the output power of the heat dissipation device.

[0029] The temperature control device of the fully liquid-cooled charging stack is Figure 1 A temperature control method for a fully liquid-cooled charging stack is shown, and the method comprises: Acquire a first coolant temperature and a second coolant temperature; If the temperature of the second coolant is lower than the set temperature, a constant heat dissipation state is maintained; If the second coolant temperature is greater than the set temperature, then calculating the temperature proportionality coefficient between the first coolant temperature and the second coolant temperature; The heat dissipation state is adjusted according to the absolute value of the difference between the temperature proportional coefficient and 1.

[0030] The temperature proportionality coefficient is calculated according to the following formula:

[0031] Wherein, U(t) is the second coolant temperature, e(t) is the first coolant temperature, and Kp is the temperature proportionality coefficient.

[0032] The step is to adjust the heat dissipation state according to the absolute value of the difference between the temperature proportional coefficient and 1, such as Figure 2 As shown, including: Calculate the absolute value of the difference between the temperature proportionality coefficient and 1; If the absolute value is greater than 1, a constant heat dissipation state is maintained; If the absolute value is within the interval range of 0.15 to 1, the duty cycle of the fan speed is set to the absolute value multiplied by 100%.

[0033] The acquisition module is composed of high-precision temperature sensors arranged at key positions of the coolant circulation pipeline. The first temperature sensor is a PT100 platinum resistance temperature sensor, which is installed on the connecting pipeline between the liquid-cooled power module and the heat sink. The specific location is close to the coolant outlet of the liquid-cooled power module. This location can accurately measure the first coolant temperature after the coolant takes out the heat from the liquid-cooled power module, thereby reflecting the heating condition of the liquid-cooled power module in real time. The second temperature sensor is also a PT100 platinum resistance temperature sensor, which is installed on the outlet pipeline of the heat dissipation device. Here, the second coolant temperature after the heat dissipation through the heat sink and the heat dissipation fan can be accurately measured to determine whether the heat dissipation effect meets expectations, and provide accurate data basis for subsequent temperature control decisions.

[0034] The temperature comparison module uses a high-performance microcontroller as the core processing unit, with a built-in special temperature comparison algorithm program, and is integrated in an independent control box. The control box is installed in the control cabinet of the charging pile, which is convenient for connection and wiring with other electrical components. The initial value of the set temperature is set at 45°C, and the set temperature can be manually adjusted within the range of 40°C to 50°C according to the actual use environment and the working status of the charging pile. When the second coolant temperature data is transmitted to the temperature comparison module through the line, the microcontroller quickly compares it with the set temperature and outputs the comparison result in a very short time. The result is transmitted to the heat dissipation adjustment module in the form of a digital signal through a shielded cable to ensure that the entire temperature control system can respond to temperature changes in a timely manner and maintain the stable operation of the charging pile.

[0035] The heat dissipation adjustment module is also integrated on a circuit board in the control cabinet and connected to the temperature comparison module through a flat cable to quickly receive the comparison results. It contains a high-precision operational amplifier and a microprocessor to calculate the temperature according to the formula. The Kp value is calculated, and the absolute value of the difference between Kp and 1 is further calculated. This absolute value is transmitted to the heat dissipation execution module as a key control parameter, providing an accurate instruction basis for the action of the heat dissipation execution module, thereby achieving fine adjustment of the heat dissipation state, ensuring that the coolant temperature is always in the optimal working range, and improving the heat dissipation efficiency and stability of the full liquid-cooled charging stack.

[0036] The heat dissipation execution module is mainly composed of a heat dissipation fan and a matching intelligent drive circuit. The heat dissipation fan is installed on one side of the heat sink and fixed to the rack of the charging pile by bolts. The air outlet direction is consistent with the air duct direction of the heat sink to ensure that the blown air can pass through the heat sink to the greatest extent and take away the heat of the coolant. The intelligent drive circuit is installed in a small metal box near the fan, connected to the heat dissipation fan through a waterproof plug, and connected to the heat dissipation adjustment module through a control line. After receiving the absolute value signal from the heat dissipation adjustment module, the intelligent drive circuit uses advanced pulse width modulation (PWM) technology to adjust the duty cycle of the PWM signal, thereby achieving precise control of the speed of the heat dissipation fan, thereby changing the output power of the heat dissipation device. For example, when the absolute value of the difference between KP and 1 is greater than 1, the drive circuit sets the PWM signal duty cycle to 15%, so that the cooling fan maintains a low constant speed to maintain a basic heat dissipation state; when the absolute value of the difference between KP and 1 is in the range of 0.15 to 1, the drive circuit sets the PWM signal duty cycle to the absolute value of the difference between KP and 1 multiplied by 100%, and dynamically adjusts the speed of the cooling fan according to the real-time temperature proportional coefficient, so that it can quickly and effectively respond to changes in coolant temperature, ensuring that the fully liquid-cooled charging stack can obtain appropriate heat dissipation under different working conditions, ensuring the safe and efficient charging process, while extending the service life of the equipment and reducing operating costs, providing a reliable and intelligent temperature control solution for new energy vehicle charging facilities.

[0037] In actual operation, when the full liquid-cooled charging stack starts working and there is a demand for charging, the liquid cooling system starts, and the two temperature sensors of the acquisition module immediately start to collect coolant temperature data, and transmit the data to the temperature comparison module through a shielded cable. The temperature comparison module compares and judges according to the set temperature threshold. If the second coolant temperature is lower than the set temperature, the heat dissipation execution module maintains the cooling fan at a speed duty cycle of 15% to maintain a constant heat dissipation state. As the charging process continues, the heat generated by the liquid-cooled power module gradually increases, and the coolant temperature rises. When the second coolant temperature is greater than the set temperature, the temperature comparison module triggers the heat dissipation adjustment module to calculate and judge the temperature proportional coefficient. The heat dissipation execution module adjusts the speed duty cycle of the cooling fan according to the calculation results, enhances the heat dissipation capacity, and stabilizes the coolant temperature within a suitable range, ensuring the stable operation of the full liquid-cooled charging stack, avoiding the impact of excessive temperature on charging efficiency and equipment life, and also preventing energy waste and equipment loss caused by excessive heat dissipation, thereby achieving accurate and efficient control of the coolant temperature of the full liquid-cooled charging stack, meeting the temperature control requirements during the charging process of new energy vehicles, and providing strong technical support for the widespread application of new energy vehicles.

[0038] Embodiment 2: Taking into account that the fully liquid-cooled charging stack operates under different ambient temperatures and working conditions and has significantly different heat dissipation requirements, a specific embodiment of the present invention also provides a practical application scenario of a charging stack based on a fully liquid-cooled charging stack temperature control device in a high temperature environment in summer.

[0039] Before the arrival of high temperatures in summer, operators can adjust the set temperature threshold in the temperature comparison module to 45°C through the temperature control device according to actual environmental conditions.

[0040] During the charging process, the first temperature sensor and the second temperature sensor of the acquisition module are calibrated and protected to ensure that they can work accurately and reliably in harsh environments such as high temperature and high humidity. The coolant temperature data is collected in real time and transmitted to the temperature comparison module. When the second coolant temperature is lower than 45°C, the heat dissipation execution module keeps the cooling fan running at a speed duty cycle of 15%, maintains a low intensity of heat dissipation, prevents overcooling, and reduces fan energy consumption and noise.

[0041] Once the second coolant temperature is higher than 45°C, the heat dissipation adjustment module quickly calculates the temperature proportionality coefficient between the first coolant temperature and the second coolant temperature, and determines the absolute value of the difference between the first coolant temperature and 1. For example, during a charging process in a high temperature environment, the first coolant temperature is 55°C and the second coolant temperature is 50°C, then:

[0042] The calculations show that:

[0043]

[0044] The absolute value is in the range of 0.15 to 1. The heat dissipation execution module adjusts the speed duty cycle of the heat dissipation fan through the fan driving circuit according to the calculation result:

[0045] Enhance heat dissipation efficiency and ensure that the coolant temperature will not rise out of control due to high temperature environment, ensuring that the charging stack can operate safely and stably in high temperature environment, and meeting the charging needs of new energy vehicles in high temperature periods such as summer.

[0046] At the same time, throughout the entire process, the cooling fan in the heat dissipation execution module serves as the main heat dissipation device. The flexible adjustment of its speed can effectively meet the heat dissipation requirements under different working conditions. Combined with the precise measurement of the temperature sensor, the intelligent judgment of the temperature comparison module and the precise calculation of the heat dissipation adjustment module, it can jointly ensure that the fully liquid-cooled charging stack can operate stably and efficiently under different ambient temperatures and working conditions, provide reliable charging services for new energy vehicles, extend the service life of the equipment, and improve the overall performance and stability of the system.

[0047] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A temperature control method for a fully liquid-cooled charging stack, characterized in that: include: Acquire a first coolant temperature and a second coolant temperature; If the temperature of the second coolant is lower than the set temperature, a constant heat dissipation state is maintained; If the second coolant temperature is greater than the set temperature, then calculating the temperature proportionality coefficient between the first coolant temperature and the second coolant temperature; The heat dissipation state is adjusted according to the absolute value of the difference between the temperature proportional coefficient and 1.

2. A temperature control method for a fully liquid-cooled charging stack according to claim 1, characterized in that: The first coolant temperature and the second coolant temperature are obtained by a temperature sensor.

3. A temperature control method for a fully liquid-cooled charging stack according to claim 1, characterized in that: If the temperature of the second coolant is lower than the set temperature, the step maintains a constant heat dissipation state, wherein the fan speed duty cycle is 15%.

4. A temperature control method for a fully liquid-cooled charging stack according to claim 1, characterized in that: If the second coolant temperature is greater than the set temperature, the temperature proportionality coefficient between the first coolant temperature and the second coolant temperature is calculated. The temperature proportionality coefficient is calculated according to the following formula: Wherein, U(t) is the second coolant temperature, e(t) is the first coolant temperature, and Kp is the temperature proportionality coefficient.

5. A temperature control method for a fully liquid-cooled charging stack according to claim 1, characterized in that: The set temperature range is 40°C to 50°C.

6. A temperature control method for a fully liquid-cooled charging stack according to claim 1, characterized in that: The step of adjusting the heat dissipation state according to the absolute value of the difference between the temperature proportionality coefficient and 1 includes: Calculate the absolute value of the difference between the temperature proportionality coefficient and 1; If the absolute value is greater than 1, a constant heat dissipation state is maintained; If the absolute value is within the interval range of 0.15 to 1, the duty cycle of the fan speed is set to the absolute value multiplied by 100%.

7. A temperature control device for a fully liquid-cooled charging stack, characterized in that: include: An acquisition module, used for acquiring a first coolant temperature and a second coolant temperature; A temperature comparison module, used for comparing the second coolant temperature with the set temperature and outputting the comparison result; A heat dissipation adjustment module, used for receiving the comparison result and calculating the temperature proportionality coefficient and the absolute value of the difference between the temperature proportionality coefficient and 1, and outputting the absolute value of the difference between the temperature proportionality coefficient and 1; The heat dissipation execution module is used to receive the absolute value of the difference between the temperature proportionality coefficient and 1, and adjust the output power of the heat dissipation device.

8. A temperature control device for a fully liquid-cooled charging stack according to claim 7, characterized in that: The acquisition module includes a first temperature sensor and a second temperature sensor. The first temperature sensor is arranged on the pipeline through which the coolant flows before heat dissipation to acquire a first coolant temperature. The second temperature sensor is arranged on the pipeline through which the coolant flows after heat dissipation to acquire a second coolant temperature.

9. A temperature control device for a fully liquid-cooled charging stack according to claim 7, characterized in that: The threshold of the set temperature in the temperature comparison module can be adjusted within a range of 40°C to 50°C.

10. A temperature control device for a fully liquid-cooled charging stack according to claim 7, characterized in that: The heat dissipation device in the heat dissipation execution module is a heat dissipation fan.

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