Heat exchange device and air-liquid cooling heat dissipation equipment comprising heat exchange device

Abstract

The utility model discloses a heat exchange device and air-liquid cooling heat dissipation equipment comprising the heat exchange device, and the heat exchange device comprises a housing, a power supply connected in the housing, a cooling liquid circulation assembly used for conveying cooling liquid, a heat dissipation assembly, and a cooling liquid control assembly. The cooling liquid circulating assembly comprises a liquid inlet pipeline, a heat exchanger and a liquid outlet pipeline, the cooling liquid control assembly comprises a control panel and a circulating pump connected with the control panel, and the liquid inlet pipeline, the heat exchanger, the circulating pump and the liquid outlet pipeline are sequentially arranged in the liquid flow direction of cooling liquid. The air-liquid cooling heat dissipation equipment comprises a heat exchange device, a display device and a to-be-cooled terminal, the display device is connected with the control panel, and the to-be-cooled terminal is connected with a liquid inlet pipeline and a liquid outlet pipeline. After the circulating pump of the heat exchange device is arranged on the heat exchanger, hot cooling liquid circulates through the circulating pump after being cooled, heat damage to working elements including the circulating pump in the shell is reduced, the working reliability of equipment is improved, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid cooling and heat dissipation, in particular to a heat exchange device and air-liquid cooling and heat dissipation equipment comprising the heat exchange device. Background Art

[0002] With the continuous development of high-density business applications such as the Internet of Things, artificial intelligence, virtual reality, and smart cities, the amount of data computing and the complexity of computing that data centers have to deal with are growing rapidly. In order to accommodate the rapidly growing demand for computing power, the density of single cabinets in data centers has been continuously upgraded, making the heat flux density of computing power equipment increasingly larger. In order to cope with the heat dissipation problem of such high heat flux density computing power equipment, liquid cooling technology is widely used in current high-computing power equipment as an efficient and green heat dissipation method. The heat exchange device is used for heat exchange between liquid circuits. The heat exchange path design of the heat exchange device in the existing data center is unreasonable, resulting in poor equipment reliability and affecting the working efficiency of the data center. Utility Model Content

[0003] The utility model aims to provide a heat exchange device, improve the structural layout, effectively reduce the thermal damage of components, and increase the service life of the device.

[0004] Another object of the utility model is to provide an air-liquid cooling device comprising the heat exchange device.

[0005] In order to achieve the above-mentioned purpose, the heat exchange device of the utility model includes a shell and a power supply connected to the shell, a coolant circulation component for conveying coolant, a heat dissipation component and a coolant control component, the coolant circulation component includes an inlet pipeline, a heat exchanger and an outlet pipeline, the coolant control component includes a control board and a circulation pump connected to the control board, and the inlet pipeline, the heat exchanger, the circulation pump and the outlet pipeline are arranged in sequence according to the flow direction of the coolant.

[0006] In one embodiment of the above-mentioned heat exchange device, it also includes a built-in liquid tank assembly, and the built-in liquid tank assembly is arranged between the outlet of the heat exchanger and the circulation pump.

[0007] In one embodiment of the above-mentioned heat exchange device, the built-in liquid tank assembly includes a main liquid tank and a liquid replenishing tank which are connected to each other, and the main liquid tank is respectively connected to the outlet of the heat exchanger and the circulation pump.

[0008] In one embodiment of the above-mentioned heat exchange device, the coolant control component includes a liquid replenishing pump, a first liquid level gauge arranged in the main liquid tank, and a second liquid level gauge arranged in the liquid replenishing tank. The main liquid tank and the liquid replenishing tank are connected through the liquid replenishing pump, and the liquid replenishing pump, the first liquid level gauge and the second liquid level gauge are respectively connected to the control board.

[0009] In one embodiment of the above-mentioned heat exchange device, the circulating pumps are arranged in two groups in parallel, one end of which is connected to the main liquid tank and the other end is connected to the liquid outlet pipeline.

[0010] In one embodiment of the above-mentioned heat exchange device, the shell includes a first end and a second end relative to each other, the heat exchanger is tilted from the first end to the second end, the heat dissipation assembly includes a heat dissipation fan, and the heat dissipation fan is arranged at the first end and / or the second end; the heat exchanger includes heat dissipation fins and heat exchange tubes, the heat dissipation fins are connected to the heat exchange tubes and are tilted from the first end to the second end.

[0011] In one embodiment of the above-mentioned heat exchange device, the coolant control assembly further includes a liquid separator and a filter, the liquid separator is connected between the circulation pump and the liquid outlet pipeline, and the filter is arranged on the liquid outlet pipeline.

[0012] In one embodiment of the above-mentioned heat exchange device, the coolant control component includes an outlet pressure gauge, an outlet thermometer and an outlet flow meter respectively connected to the control board, the outlet pressure gauge is arranged at the end of the liquid distributor along the liquid flow direction, and the outlet thermometer and the outlet flow meter are arranged on the liquid outlet pipeline.

[0013] In one embodiment of the above-mentioned heat exchange device, the coolant control component includes an inlet thermometer and an inlet pressure gauge respectively connected to the control board, and the inlet thermometer and the inlet pressure gauge are arranged on the liquid inlet pipeline.

[0014] The utility model provides an air-liquid cooling heat dissipation device, comprising a display device and a terminal to be cooled, which also comprises the above-mentioned heat exchange device, the display device is connected to a control panel, and the terminal to be cooled is connected to a liquid inlet pipeline and a liquid outlet pipeline.

[0015] The beneficial effect of the utility model is that the circulation pump of the heat exchange device of the utility model is arranged after the heat exchanger, and the hot coolant is circulated through the circulation pump after cooling, thereby reducing the thermal damage to the internal working components including the circulation pump. In addition, the heat exchange device of the utility model adopts a built-in liquid tank component to buffer the flow of the coolant, stabilize the internal ambient temperature of the device, and improve the heat dissipation and heat protection effect and the working life of the device.

[0016] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a module block diagram of the heat exchange device of the utility model;

[0018] Figure 2 It is an internal layout diagram of an embodiment of the heat exchange device of the utility model;

[0019] Figure 3 for Figure 2 A front view of

[0020] Figure 4 This is a three-dimensional structural appearance diagram of the heat exchange device of the utility model (first viewing angle);

[0021] Figure 5 This is a three-dimensional structural appearance diagram of the heat exchange device of the utility model (second viewing angle);

[0022] Figure 6 It is a three-dimensional structural diagram of the built-in liquid tank assembly (with related pipelines) of the heat exchange device of the utility model;

[0023] Figure 7 for Figure 5 AA section view;

[0024] Figure 8 It is a module diagram of an embodiment of the air-liquid cooling heat dissipation device of the present utility model.

[0025] Among them, the reference numerals

[0026] 10: Heat exchange device

[0027] 100: Shell

[0028] 110: First end

[0029] 120: Second end

[0030] 101: Liquid inlet

[0031] 102: Liquid outlet

[0032] 103: Fluid infusion port

[0033] 200: Power supply

[0034] 300: Coolant circulation components

[0035] 310: Liquid inlet pipeline

[0036] 320: Heat exchanger

[0037] 321: Cooling fins

[0038] 322: Heat exchange tube

[0039] 330: Liquid outlet pipeline

[0040] 400: Heat dissipation components

[0041] 410: Cooling fan

[0042] 500: Coolant control assembly

[0043] 501: Control Panel

[0044] 510: Circulation pump

[0045] 520: Dispenser

[0046] 530: Filter

[0047] 540: Fluid infusion pump

[0048] 550: Imported thermometer

[0049] 560: outlet thermometer

[0050] 570: Outlet pressure gauge

[0051] 580: Outlet flow meter

[0052] 590: Check valve

[0053] 600: Built-in liquid tank assembly

[0054] 610: Main tank

[0055] 611: Pressure relief valve

[0056] 620: Fluid refill tank

[0057] 20: Display device

[0058] 30: Terminal to be cooled DETAILED DESCRIPTION

[0059] The technical solution of the utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of the utility model, but it is not intended to limit the scope of protection of the claims attached to the utility model.

[0060] References in the specification to "an embodiment", "another embodiment", "this embodiment", etc., mean that the described embodiment may include specific features, structures or characteristics, but not every embodiment must include these specific features, structures or characteristics. In addition, such expressions do not refer to the same embodiment. Further, when describing specific features, structures or characteristics in conjunction with an embodiment, whether or not there is an explicit description, it has been shown that it is within the knowledge of those skilled in the art to combine such features, structures or characteristics into other embodiments.

[0061] Certain words are used in the specification and subsequent claims to refer to specific components or parts. It should be understood by those of ordinary skill in the art that technical users or manufacturers may refer to the same component or part by different nouns or terms. This specification and subsequent claims do not use differences in names as a way to distinguish components or parts, but rather use differences in functions of components or parts as the criteria for distinction. The words "include" and "comprising" mentioned throughout the specification and subsequent claims are open-ended terms and should be interpreted as "including but not limited to". In addition, the word "connected" herein includes any direct and indirect means of connection.

[0062] It should be noted that in the description of the present invention, the terms "lateral", "longitudinal", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does 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 cannot be understood as a limitation on the present invention. For the sake of clarity, the order terms "first", "second", "third", "fourth" and the like mentioned herein are used to distinguish an element, region, or part from another identical or similar element, region, or part, rather than to limit a specific element, region, or part.

[0063] The heat exchange device of the utility model is used, for example, for the air-liquid cooling method of the heat dissipation terminal of a high heat flux density liquid-cooled server. It can transport the coolant to each terminal cold plate according to the characteristic that the heat generation of the server CPU / GPU is sensitive to the ambient temperature, and take away the heat of the terminal cold plate through the coolant, thereby achieving the purpose of heat dissipation for the equipment.

[0064] like Figures 1 to 5 As shown, the heat exchange device 10 of the present invention includes a housing 100, a power supply 200, a coolant circulation assembly 300, a heat dissipation assembly 400 and a coolant control assembly 500, and the power supply 200, the coolant circulation assembly 300, the heat dissipation assembly 400 and the coolant control assembly 500 are connected in the housing 100. In detail, the coolant circulation assembly 300 includes a liquid inlet pipeline 310, a heat exchanger 320 and a liquid outlet pipeline 330, and the coolant control assembly 500 includes a control board 501 and a circulation pump 510 connected to the control board 501, as shown in FIG. Figure 2 and Figure 3 As shown, according to the direction of liquid flow, the liquid inlet pipeline 310, the heat exchanger 320, the circulation pump 510 and the liquid outlet pipeline 330 are arranged in sequence.

[0065] Among them, Figure 5As shown, the housing 100 has a liquid inlet 101 connected to the liquid inlet pipeline 310 and a liquid outlet 102 connected to the liquid outlet pipeline 330, and the liquid inlet 101 and the liquid outlet 102 are respectively connected to the terminals to be cooled. The hot coolant enters the liquid inlet pipeline 310 from the terminal to be cooled through the liquid inlet 101, and the heat of the hot coolant is dissipated through the heat exchanger 320 combined with the heat dissipation component 400. The coolant after heat dissipation is transported to the terminal cold plate of each terminal to be cooled through the circulation pump 510, the liquid outlet pipeline 330 and the liquid outlet 102, and the heat of the terminal cold plate is taken away by the coolant, so as to achieve the purpose of air-liquid cooling of the high heat flux density liquid-cooled server and ensure the normal working temperature of each terminal to be cooled.

[0066] In the utility model, the hot coolant enters the heat exchanger 320 through the liquid inlet pipe 310 for cooling. After the hot coolant is cooled, it is circulated through the circulating pump 510. The lower coolant temperature causes less thermal damage to the working components inside the device including the circulating pump 510. At the same time, the coolant with a lower temperature can better absorb the heat generated by the various components inside the device including the circulating pump 510 itself, and play a role in heat protection and heat dissipation, thereby further protecting the working components and increasing the working life of the device.

[0067] Furthermore, if Figure 3 As shown, the coolant control assembly 500 of the heat exchange device 10 of the utility model further includes a liquid separator 520 and a filter 530. The liquid separator 520 is connected between the circulation pump 510 and the liquid outlet pipeline 330, and the filter 530 is arranged on the liquid outlet pipeline 330. The cooled coolant circulates through the circulation pump 510, the liquid separator 520 and the filter 530, which can reduce heat damage and increase the service life of components while ensuring the flow stability and cleanliness of the coolant.

[0068] Combination Figure 2 , Figure 3 as well as Figure 6 In some embodiments of the present invention, the heat exchange device 10 further includes a built-in liquid tank assembly 600, which is located in the box body 100 and is disposed between the outlet of the heat exchanger 320 and the circulation pump 510. In the present invention, the coolant cooled by the heat exchanger 320 first enters the built-in liquid tank assembly 600 for storage, and flows out of the liquid outlet 102 through the liquid distributor 520 under the action of the circulation pump 510 as needed, and enters each terminal to be cooled. The present invention plays a buffering role by arranging the built-in liquid tank assembly 600.

[0069] The present application can buffer the flow of coolant through the built-in liquid tank, making the supply of coolant more stable and sufficient, and keeping the internal temperature of the coolant relatively uniform and stable, thereby stabilizing the internal ambient temperature of the device. The coolant stored in the built-in liquid tank can be recycled to reduce the decline in heat dissipation effect due to flow fluctuations. On the other hand, as an independent component, the built-in liquid tank can prevent particulate matter in the coolant from being washed into the downstream pipeline as the flow changes, avoiding water accumulation or blockage.

[0070] Furthermore, in some embodiments of the heat exchange device of the present invention, the built-in liquid tank assembly 600 includes a main liquid tank 610 and a liquid replenishing tank 620 that are interconnected, and the main liquid tank 610 is respectively connected to the outlet of the heat exchanger 320 and the circulating pump 510. The main liquid tank 610 serves as a main working tank body, receiving the coolant flowing through the outlet of the heat exchanger 320. The liquid replenishing tank 620 serves as an auxiliary working tank body, and replenishes the coolant when the coolant in the main liquid tank 610 is insufficient.

[0071] In detail, the coolant control component 500 also includes a refill pump 540, a first liquid level gauge and a second liquid level gauge (not shown in the figure). The first liquid level gauge is arranged in the main liquid tank 610 to detect the liquid level height of the coolant in the main liquid tank 610, and the second liquid level gauge is arranged in the refill tank 620 to detect the liquid level height of the coolant in the refill tank 620. The main liquid tank 610 and the refill tank 620 are connected through the refill pump 540, and the refill pump 540, the first liquid level gauge and the second liquid level gauge are respectively connected to the control board 501.

[0072] When the first liquid level meter feedbacks that the liquid level of the main liquid tank 610 is too low, the control board 501 controls the liquid replenishing pump 540 to obtain a certain amount of coolant from the liquid replenishing tank 620 to add to the main liquid tank 610, or the control board 501 controls the liquid replenishing pump 540 to obtain coolant from the liquid replenishing tank 620 to add to the main liquid tank 610 until the first liquid level meter feedbacks that the coolant in the main liquid tank 610 reaches the preset liquid level. When the liquid level of the liquid replenishing tank 620 is too low, the second liquid level meter provides feedback, and can automatically add coolant to the liquid replenishing tank 620 through the quick plug connection to the external device, of course, you can also manually add coolant to the liquid replenishing tank 620 from the liquid replenishing port 103.

[0073] The utility model can greatly reduce the phenomenon of lack of liquid due to volatilization of the equipment by setting up the built-in main liquid tank 610 and the liquid replenishing tank 620, which is beneficial to maintain a constant pressure of the equipment and ensure the stability and reliability of the equipment operation.

[0074] like Figure 3 and Figure 4 As shown, the main liquid tank 610 is provided with a pressure relief valve 611, which will automatically release pressure when the pressure exceeds a certain range.

[0075] like Figure 2 , Figure 3 as well as Figure 6 As shown, preferably, in some embodiments of the utility model, the circulating pump 510 is arranged in two groups in parallel, one end of the two parallel circulating pumps 510 is connected to the main liquid tank 610, and the other end is connected to the liquid outlet pipeline 330, so as to improve the safety and operation stability of the equipment. Generally speaking, the two groups of pumps are in the form of one for use and one for backup, that is, when one group of pumps fails to operate or is repaired and maintained, the other group of pumps can be started immediately to ensure that the cooling cycle can continue normally and improve the operation reliability. Of course, the two groups of pumps can also work at the same time to provide the equipment with a stronger coolant delivery capacity to adapt to the coolant requirements of different powers and numbers of terminals to be cooled. The two groups of pumps participate in the circulation transportation together, and the flow load borne by each group of pumps is relatively reduced, which can also extend the service life of the pump.

[0076] like Figure 3 as well as Figure 7 As shown, in some embodiments of the utility model, the housing 100 includes a first end 110 and a second end 120 opposite to each other, and the heat dissipation assembly 400 includes a heat dissipation fan 410. In some embodiments of the utility model, the heat exchanger 320 is located in the housing 100 and is tilted from the first end 110 to the second end 120, or in other words, the height of the heat exchanger 320 located on the first end 110 side is inconsistent with the height located on the second end 130 side. The heat dissipation fan 410 is arranged at the first end 110 or the second end 120, or the heat dissipation fan 410 is arranged at the first end 110 and the second end 120. When the heat dissipation fan 410 is arranged at the two ends, the heat dissipation fan 410 is respectively a blowing fan or an exhaust fan to ensure the consistency of the wind flow. In other embodiments, the heat dissipation assembly 400 may also include other structures that are conducive to heat dissipation, such as providing an air guide groove that is conducive to the introduction of cold air from the outside, and combining the heat dissipation fan 410 to improve the air guide and heat dissipation performance.

[0077] The line connecting the heat exchanger 320 and the first end 110 and the second end 120 has an angle, so that the heat exchange area of ​​the heat exchanger 320 is maximized, and the circulation pump 510, for example, adopts array ventilation to make the wind flow pass through the heat exchanger 320 in a straight line, quickly taking away the heat from various parts of the heat exchanger 320.

[0078] Furthermore, the heat exchanger 320 includes a heat dissipation fin 321 and a heat exchange tube 322, wherein the heat exchange tube 322 is, for example, a plurality of heat exchange tubes 322 arranged in parallel, and the heat dissipation fin 321 is in the form of a sheet and connected in parallel to the outside of the plurality of heat exchange tubes 322. In some embodiments, the heat dissipation fin 321 is connected to the outside of the heat exchange tube 322 respectively. In this embodiment, the heat dissipation fin 321 is integrally connected to the outside of the heat exchange tube 322, so that the heat exchanger 320 has a wider heat dissipation area and a more distinct heat dissipation channel, and also simplifies the connection between the heat dissipation fin 321 and the heat exchange tube 322, thereby improving the heat dissipation efficiency and manufacturing efficiency of the product.

[0079] The heat dissipation fins 321 are inclined from the first end 110 to the second end 120, with low wind resistance and high heat dissipation efficiency. For example, there are multiple heat dissipation fins 321 and they are arranged in parallel. A heat dissipation air duct consistent with the wind flow direction is formed between adjacent heat dissipation fins 321, which effectively guides ventilation and helps to quickly discharge hot air.

[0080] like Figure 2 and Figure 3 As shown, in some embodiments of the present invention, the coolant control assembly 500 includes an inlet thermometer 550 and an inlet pressure gauge respectively connected to the control board 501, and the inlet thermometer 550 and the inlet pressure gauge are arranged on the liquid inlet pipeline 310. The inlet thermometer 550 is used to measure the temperature of the coolant at the inlet, and the inlet pressure gauge is used to measure the pressure of the coolant at the inlet.

[0081] The coolant control assembly 500 also includes an outlet thermometer 560, an outlet pressure gauge 570 and an outlet flow meter 580 respectively connected to the control board 501. The outlet pressure gauge 570 is arranged at the end of the liquid distributor 520 along the liquid flow direction, and the outlet thermometer 560 and the outlet flow meter 580 are arranged on the liquid outlet pipeline 330. The outlet thermometer 560 is used to measure the temperature of the coolant at the outlet, the outlet pressure gauge 570 is used to measure the pressure of the coolant at the outlet, and the outlet flow meter 580 is used to measure the flow rate of the coolant at the outlet. In addition, a check valve 590 can also be arranged at the end of the liquid distributor 520 to prevent the coolant from flowing back.

[0082] like Figure 8 As shown, the air-liquid cooling device of the utility model includes a heat exchange device 10, a display device 20 and a terminal 30 to be cooled. The display device 20 is connected to the control board 501 of the coolant control component 500 of the heat exchange device 10, and the terminal 30 to be cooled is connected to the liquid inlet pipeline 310 and the liquid outlet pipeline 330 of the heat exchange device 10. The coolant circulates through the terminal cold plate of the terminal 30 to be cooled, and the heat of the terminal cold plate is taken away by the coolant.

[0083] Among them, the coolant of the utility model adopts a target control mode, that is, automatically adjusts so that the water temperature is stable at a set value. The pressure value of the coolant at the outlet of the heat exchange device 10 can be controlled, so that when the number of loads changes, the flow rate of a single load can remain basically unchanged. According to the data fed back by the coolant control component 500, the display device 20 provides simple parameter control and display, and interactively manages the cooling method to ensure that the terminal 30 to be cooled operates normally in the working environment.

[0084] The display device 20 is, for example, a touch screen, which can provide, through the display interface, information display such as setting parameters, fault alarms, equipment operating status, temperature, pressure, flow, and control mode.

[0085] Currently, there are three control modes, for example, manual control mode, flow automatic control mode, and automatic control mode.

[0086] In the manual control mode, the rotation speeds of the circulation pump 510 and the cooling fan 410 can be increased or decreased through the screen to adjust and test the circulation pump 510 and the cooling fan 410 according to actual working conditions.

[0087] In the automatic flow control mode, the flow rate and the outlet water temperature can be increased or decreased through the screen; in the pressure difference automatic control mode, the inlet and outlet water pressure difference and the outlet water temperature can be increased or decreased through the screen. The automatic control mode automatically adjusts according to the set target outlet water temperature, target inlet and outlet water pressure difference, and target flow rate to make the corresponding parameters close to the target value. For example, under the current performance of the heat exchanger, the automatic temperature control error is within ±1 degrees Celsius. The fault alarm will be displayed on the screen in the form of red flashing. The current alarms include leakage alarm, water tank lack of liquid alarm, and liquid storage tank lack of liquid alarm. The alarm can be temporarily canceled by clicking the corresponding flashing area.

[0088] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A heat exchange device, comprising a housing and a power supply connected to the housing, a coolant circulation component for coolant delivery, a heat dissipation component and a coolant control component, wherein the coolant circulation component comprises a liquid inlet pipeline, a heat exchanger and a liquid outlet pipeline, and the coolant control component comprises a control board and a circulation pump connected to the control board, characterized in that: The liquid inlet pipeline, heat exchanger, circulation pump and liquid outlet pipeline are sequentially arranged and connected according to the liquid flow direction of the coolant.

2. The heat exchange device according to claim 1, characterized in that: It also includes a built-in liquid tank component, which is arranged between the outlet of the heat exchanger and the circulation pump.

3. The heat exchange device according to claim 2, characterized in that: The built-in liquid tank assembly includes a main liquid tank and a liquid replenishing tank which are connected to each other, and the main liquid tank is respectively connected to the outlet of the heat exchanger and the circulating pump.

4. The heat exchange device according to claim 3, characterized in that: The coolant control component includes a refill pump, a first liquid level gauge arranged in the main liquid tank, and a second liquid level gauge arranged in the refill tank. The main liquid tank and the refill tank are connected through the refill pump, and the refill pump, the first liquid level gauge and the second liquid level gauge are respectively connected to the control board.

5. The heat exchange device according to any one of claims 3 to 4, characterized in that: The circulating pumps are two groups arranged in parallel, one end of which is connected to the main liquid tank, and the other end of which is connected to the liquid outlet pipeline.

6. The heat exchange device according to any one of claims 1 to 4, characterized in that: The shell includes a first end and a second end opposite to each other, the heat exchanger is tilted from the first end to the second end, the heat dissipation assembly includes a heat dissipation fan, and the heat dissipation fan is arranged at the first end and / or the second end; the heat exchanger includes heat dissipation fins and heat exchange tubes, the heat dissipation fins are connected to the heat exchange tubes and are tilted from the first end to the second end.

7. The heat exchange device according to any one of claims 1 to 4, characterized in that: The coolant control assembly further comprises a liquid separator and a filter. The liquid separator is connected between the circulation pump and the liquid outlet pipeline, and the filter is arranged on the liquid outlet pipeline.

8. The heat exchange device according to claim 7, characterized in that: The coolant control component includes an outlet pressure gauge, an outlet thermometer and an outlet flow meter respectively connected to the control board. The outlet pressure gauge is arranged at the end of the liquid distributor along the liquid flow direction, and the outlet thermometer and the outlet flow meter are arranged on the liquid outlet pipeline.

9. The heat exchange device according to claim 7, characterized in that: The coolant control assembly comprises an inlet thermometer and an inlet pressure gauge respectively connected to the control panel, and the inlet thermometer and the inlet pressure gauge are arranged on the liquid inlet pipeline.

10. An air-liquid cooling device, comprising a display device and a terminal to be cooled, characterized in that: It also includes the heat exchange device according to any one of claims 1 to 9, the display device is connected to the control board, and the terminal to be cooled is connected to the liquid inlet pipeline and the liquid outlet pipeline.

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