Two-phase liquid cooling device

Abstract

The utility model relates to the technical field of liquid cooling devices, in particular to a two-phase liquid cooling device. The two-phase liquid cooling device comprises a cooling box, the interior of the cooling box is provided with a containing cavity, and first cooling liquid and to-be-cooled equipment are placed in the containing cavity; the first heat exchanger is located at the top end of the containing cavity, and second cooling liquid is placed in the first heat exchanger; the pressure control assembly communicates with the cooling box, and the pressure control assembly is used for controlling the pressure in the cooling box; and the liquid supplementing and purifying assembly is arranged on one side of the cooling box and communicates with the cooling box, and the liquid supplementing and purifying assembly is used for conveying the first cooling liquid into the cooling box when the first cooling liquid is smaller than a preset value and purifying the first cooling liquid. The pressure in the device can be regulated and controlled, normal use of the two-phase liquid cooling device is guaranteed, first cooling liquid can be supplemented into the cooling box in time, and the cooling effect on equipment to be cooled is guaranteed; in addition, the liquid supplementing and purifying assembly further has a purifying effect, and the first cooling liquid can be purified regularly.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid cooling devices, in particular to a two-phase liquid cooling device. Background Art

[0002] The rapid development of artificial intelligence, cloud computing, and big data technologies is driving increasing demands for computing power, leading to a continuous increase in server power consumption. This is particularly true for the CPUs and GPUs that provide server computing power. Process upgrades not only boost computing power, but also significantly increase overall power consumption and heat generation. Two-phase liquid cooling systems, with their advantages of efficient and uniform heat dissipation, low noise, and strong flexibility, play a vital role in high-heat scenarios such as high-performance computing equipment and data center servers.

[0003] However, existing two-phase liquid cooling systems cycle through a continuous cycle of evaporating the coolant into a gas and condensing it back into a liquid. This process causes internal pressure fluctuations, requiring timely pressure relief when the pressure becomes excessive. However, this pressure relief operation results in the loss of gaseous coolant. Without timely replenishment, the coolant in the two-phase liquid cooling system continues to decrease, reducing the heat dissipation effect. Furthermore, existing two-phase liquid cooling systems lack dedicated coolant purification devices. For various reasons, impurities may accumulate in the coolant after long-term use, affecting the coolant's heat dissipation efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a two-phase liquid cooling device, aiming to solve the technical problem that the existing two-phase liquid cooling system is prone to reduced heat dissipation efficiency after long-term use due to the lack of a liquid replenishing device and a purification device.

[0005] To achieve the above-mentioned object, the present invention proposes a two-phase liquid cooling device, comprising a cooling box having an accommodating chamber therein, wherein a first coolant and a device to be cooled are placed in the accommodating chamber, and the first coolant is used to absorb heat from the device to be cooled;

[0006] a first heat exchanger, located at the top of the accommodating cavity, wherein a second coolant is placed in the first heat exchanger, and the second coolant is used to absorb heat from the first coolant;

[0007] a pressure control assembly, which is in communication with the cooling box, and is used to control the pressure in the cooling box;

[0008] A fluid replenishment and purification component is arranged on one side of the cooling box and is connected to the cooling box. The fluid replenishment and purification component is used to transport the first coolant into the cooling box when the first coolant is less than a preset value, and to purify the first coolant.

[0009] Preferably, it further comprises an external circulation cooling component, which is arranged on one side of the cooling box and is connected to the first heat exchanger for cooling the second coolant.

[0010] Preferably, the fluid replenishment and purification component includes a liquid level sensor, a liquid storage tank and a circulation pump. The first coolant is placed in the liquid storage tank. One end of the circulation pump is connected to the liquid storage tank through a first pipe, and the other end of the circulation pump is connected to the cooling tank through a second pipe. The liquid level sensor is arranged in the cooling tank to obtain the liquid level of the first coolant in the cooling tank, and when the liquid level is lower than a preset value, the first coolant is pumped from the liquid storage tank to the cooling tank through the circulation pump.

[0011] Preferably, the pressure control assembly includes a first pressure sensor, a pressure control valve and a recovery condenser, one end of the recovery condenser is connected to the cooling tank through a third pipe, and the other end thereof is connected to the liquid storage tank through a fourth pipe, and the pressure control valve and the first pressure sensor are both arranged on the third pipe, so that: when the first pressure sensor detects that the pressure of the cooling tank is greater than a preset value, the pressure control valve is opened, and the gaseous first coolant in the cooling tank is condensed by the recovery condenser and then transported to the liquid storage tank.

[0012] Preferably, the fluid replenishment and purification assembly further includes a fluid replenishment switching valve, a purification switching valve, and a purifier, one end of the purifier is connected to the cooling tank via a fifth pipe, and the other end of the purifier is connected to the circulation pump via a ninth pipe, the first pipe is provided with a fluid replenishment switching valve, and the fifth pipe is provided with a purification switching valve;

[0013] The refill switching valve is used to open during refilling, while the purification switching valve is closed, and the first coolant is pumped from the liquid storage tank through the first pipeline, the circulation pump, and the second pipeline into the cooling tank in sequence;

[0014] The purification switching valve is used to open during purification, and the refill switching valve is closed at the same time, and the first coolant circulates from the cooling box through the fifth pipe, the circulation pump, and the second pipe in sequence to the cooling box.

[0015] Preferably, the external circulation cooling assembly includes an external circulation pump, a fan, and a second heat exchanger, an internal condenser is provided in the first heat exchanger, the second heat exchanger is connected to one side of the internal condenser through a sixth pipe, one end of the external circulation pump is connected to the other side of the internal condenser through a seventh pipe, and the other end of the external circulation pump is connected to the second heat exchanger through an eighth pipe, and a plurality of fans are arranged facing the second heat exchanger to cool the second coolant flowing through the second heat exchanger;

[0016] The sixth pipeline and the eighth pipeline are both provided with a temperature sensor and a second pressure sensor.

[0017] Preferably, a cover is hingedly provided at the top end of the cooling box, and the first heat exchanger is arranged at the lower end of the cover.

[0018] Preferably, the inner wall of the cover is further provided with a storage box for placing a desiccant.

[0019] Preferably, the cooling box is further provided with a transparent observation window.

[0020] Preferably, two detachable mounting rods are provided in the accommodating cavity, and a plurality of mounting holes are provided at intervals along the length direction of the mounting rods. Both sides of the equipment to be cooled are respectively mounted in any of the mounting holes by bolts.

[0021] The two-phase liquid cooling device disclosed in the utility model has the following beneficial effects:

[0022] 1. By providing a pressure control component and a liquid replenishment and purification component, the pressure inside the device can be regulated to ensure the normal use of the two-phase liquid cooling device. The first coolant can also be replenished into the cooling box in time to ensure the cooling effect on the equipment to be cooled. In addition, the liquid replenishment and purification component also has a purification effect and can regularly purify the first coolant.

[0023] 2. Through the additional external circulation cooling system, the second coolant is additionally cooled, so that the second coolant always maintains a lower temperature, which has a better cooling effect on the first coolant. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0025] Figure 1 This is a schematic diagram of the two-phase liquid cooling device of the utility model;

[0026] Figure 2 This is a schematic diagram of the internal structure of the two-phase liquid cooling device of the utility model;

[0027] Figure 3 This is a schematic diagram of the internal structure of the two-phase liquid cooling device of the present invention from another angle.

[0028] In the accompanying drawings: 1-cooling box, 11-accommodating chamber, 12-cover, 13-storage box, 14-observation window, 15-mounting rod, 151-mounting hole, 2-equipment to be cooled, 3-first heat exchanger, 31-internal condenser, 4-pressure control component, 41-first pressure sensor, 42-pressure control valve, 43-recovery condenser, 44-third pipeline, 45-fourth pipeline, 5-liquid replenishment and purification component, 50-ninth pipeline, 51-liquid level sensor, 52-liquid storage tank, 53-circulating pump, 54-first pipeline, 55-second pipeline, 56-fifth pipeline, 57-liquid replenishment switching valve, 58-purification switching valve, 59-purifier, 6-external circulation cooling component, 61-external circulation pump, 62-fan, 63-second heat exchanger, 64-sixth pipeline, 65-seventh pipeline, 66-eighth pipeline, 67-temperature sensor, 68-second pressure sensor.

[0029] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0030] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0031] It should be noted that if directional indications are involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] like Figures 1 to 3As shown, a two-phase liquid cooling device includes a cooling box 1 having an accommodating chamber 11 therein, wherein a first coolant and a device to be cooled 2 are placed in the accommodating chamber 11, and the first coolant is used to absorb heat from the device to be cooled 2;

[0034] A first heat exchanger 3 is located at the top of the accommodating cavity 11. A second coolant is placed in the first heat exchanger 3, and the second coolant is used to absorb heat from the first coolant.

[0035] a pressure control assembly 4, which is in communication with the cooling box 1 and is used to control the pressure in the cooling box 1;

[0036] The fluid replenishment and purification component 5 is arranged on one side of the cooling box 1 and is connected to the cooling box 1. The fluid replenishment and purification component 5 is used to transport the first coolant into the cooling box 1 when the first coolant is less than a preset value, and to purify the first coolant.

[0037] In this solution, the two-phase liquid cooling device is mainly composed of a cooling box 1, a rehydration component and a purification component. Among them, the cooling box 1 has a large accommodating chamber 11, which provides a carrying space for the device to be cooled 2 (such as a computer, server or other electronic equipment). At the same time, the cooling box 1 can also power the device to be cooled 2 and provide network conditions. A low-boiling-point first coolant is placed in the accommodating chamber 11 of the cooling box 1. The device to be cooled 2 is immersed in the first coolant and transfers the heat generated during operation to the first coolant. The first coolant absorbs heat and turns into gas after reaching the boiling point. The upward-moving gaseous first coolant contacts the first heat exchanger 3 on the cooling box 1. A second coolant circulates in the first heat exchanger 3. The second coolant absorbs the heat of the first coolant through the first heat exchanger 3, and condenses the first coolant from gas to liquid and returns it to the cooling box 1, completing the cooling of the device to be cooled 2.

[0038] Specifically, this solution features a pressure control assembly 4 to regulate the pressure within the device, preventing excessive pressure from impacting the proper operation of the two-phase liquid cooling system. To replenish the first coolant lost during pressure relief, this solution also includes a refill and purification assembly 5, which promptly replenishes the first coolant within the cooling tank 1 to ensure the device's cooling efficiency for the cooling equipment 2. Furthermore, the refill and purification assembly 5 also provides a purification function, regularly purifying the first coolant to minimize impurities generated during use and further ensuring the first coolant's cooling efficiency.

[0039] Furthermore, it also includes an external circulation cooling component 6, which is arranged on one side of the cooling box 1 and is connected to the first heat exchanger 3 for cooling the second coolant.

[0040] The second coolant mainly absorbs the heat of the first coolant. In order to improve the cooling efficiency of the second coolant, this solution is also provided with an external circulation cooling system to cool the second coolant so that the second coolant always maintains a low temperature, thereby ensuring the cooling effect on the first coolant.

[0041] Furthermore, the fluid replenishment and purification component 5 includes a liquid level sensor 51, a liquid storage tank 52 and a circulating pump 53. The first coolant is placed in the liquid storage tank 52. One end of the circulating pump 53 is connected to the liquid storage tank 52 through a first pipe 54, and the other end of the circulating pump 53 is connected to the cooling tank 1 through a second pipe 55. The liquid level sensor 51 is arranged in the cooling tank 1, and is used to obtain the liquid level of the first coolant in the cooling tank 1, and when the liquid level is lower than a preset value, the first coolant is pumped from the liquid storage tank 52 to the cooling tank 1 through the circulating pump 53.

[0042] The specific liquid level of the first coolant in the cooling box 1 is obtained in real time by the liquid level sensor 51. When the liquid level of the first coolant is lower than the preset value, the circulation pump 53 is started. The circulation pump 53 draws the pre-stored first coolant from the liquid storage tank 52 and transports it to the cooling box 1 through the first pipe 54 and the second pipe 55 to ensure that there is always a sufficient amount of first coolant in the cooling box 1 to cool the cooling equipment 2.

[0043] Furthermore, the pressure control component 4 includes a first pressure sensor 41, a pressure control valve 42 and a recovery condenser 43. One end of the recovery condenser 43 is connected to the cooling box 1 through a third pipe 44, and the other end is connected to the liquid storage tank 52 through a fourth pipe 45. The pressure control valve 42 and the first pressure sensor 41 are both arranged on the third pipe 44, so that: when the first pressure sensor 41 detects that the pressure of the cooling box 1 is greater than a preset value, the pressure control valve 42 is opened, and the gaseous first coolant in the cooling box 1 is condensed by the recovery condenser 43 and then transported to the liquid storage tank 52.

[0044] The specific pressure in the cooling box 1 is obtained in real time by the first pressure sensor 41. When the pressure in the cooling box 1 is too high and greater than a preset value, the pressure control valve 42 opens to release the pressure. The released gas (gaseous first coolant) is recovered to the condenser through the third pipe 44, and after condensation, is recovered to the liquid storage tank 52, and then the cooling box 1 is replenished with liquid through the liquid storage tank 52.

[0045] Furthermore, if Figure 1As shown, the rehydration and purification assembly 5 further includes a rehydration switching valve 57, a purification switching valve 58 and a purifier 59. One end of the purifier 59 is connected to the cooling box 1 through a fifth pipe 56, and the other end of the purifier 59 is connected to the circulation pump 53 through a ninth pipe 50. The first pipe 54 is provided with a rehydration switching valve 57, and the fifth pipe 56 is provided with a purification switching valve 58.

[0046] The refill switching valve 57 is used to open during refilling, while the purification switching valve 58 is closed, and the first coolant is pumped from the liquid storage tank 52 into the cooling box 1 through the first pipe 54, the circulation pump 53, and the second pipe 55 in sequence;

[0047] The purification switching valve 58 is used to open during purification, and the refill switching valve 57 is closed at the same time, and the first coolant circulates from the cooling box 1 through the fifth pipe 56, the circulation pump 53, and the second pipe 55 to the cooling box 1 in sequence.

[0048] The pump used for extracting the first cooling liquid in this solution is also a circulating pump 53. The purifier 59 with purification function can perform physical filtration and ion adsorption. It first filters the large particles of impurities in the first cooling liquid through its internal filter structure, and then performs ion treatment on the first cooling liquid through the reverse osmosis membrane, so that the purified first cooling liquid has better purity.

[0049] In this embodiment, a refill switching valve 57 is provided on the first pipe 54, and a purge switching valve 58 is provided on the fifth pipe 56. When the liquid level in the cooling tank 1 is low and refilling is required, the purge switching valve 58 remains closed, the refill switching valve 57 is opened, and the circulation pump 53 is activated to refill the liquid. Furthermore, this two-phase liquid cooling device is equipped with a periodic purge function. When the purge function is activated, the refill switching valve 57 is closed and the purge switching valve 58 is opened, filtering and purifying the first coolant in the cooling tank 1. The circulation pump 53 is connected to the cooling tank 1 via the second pipe 55 and the fifth pipe 56. The purified first coolant is then delivered to the cooling tank 1 by the circulation pump 53.

[0050] Furthermore, the external circulation cooling assembly 6 includes an external circulation pump 61, a fan 62 and a second heat exchanger 63. The first heat exchanger 3 is provided with an internal condenser 31. The second heat exchanger 63 is connected to one side of the internal condenser 31 through a sixth pipe 64. One end of the external circulation pump 61 is connected to the other side of the internal condenser 31 through a seventh pipe 65. The other end of the external circulation pump is connected to the second heat exchanger 63 through an eighth pipe 66. Several fans 62 are arranged opposite the second heat exchanger 63 to cool the second coolant flowing through the second heat exchanger 63.

[0051] The sixth pipe 64 and the eighth pipe 66 are both provided with a temperature sensor 67 and a second pressure sensor 68 .

[0052] In this embodiment, the external circulation cooling component 6 is composed of an external circulation pump 61, a fan 62 and a second heat exchanger 63, wherein the external circulation pump 61, the second heat exchanger 63 and the internal condenser 31 are connected together through the above-mentioned pipeline, and a second coolant circulates in the pipeline. The second coolant absorbs heat through the internal condenser 31 and is transported to the second heat exchanger 63 under the drive of the external circulation pump 61. The second coolant completes heat exchange and cooling with the air through the fan 62 in the second heat exchanger 63 and then circulates to the internal condenser 31 again, and the cycle continues.

[0053] When the device begins to dissipate heat from the cooling device 2, the external circulation cooling assembly 6 is activated, and the second coolant continues to circulate and cool. The second coolant circulation flow rate is adjusted based on the inlet and outlet temperature difference. This inlet and outlet temperature difference is primarily monitored in real time by temperature sensors 67 provided on the sixth and eighth pipes 64 and 66. Furthermore, second pressure sensors 68 are provided on the sixth and eighth pipes 64 and 66 to monitor the inlet and outlet pressures within the external circulation cooling assembly 6.

[0054] Furthermore, if Figure 2 As shown, the top of the cooling box 1 is hingedly provided with a cover 12, and the first heat exchanger 3 is arranged at the lower end of the cover 12. The top of the cooling box 1 is hingedly provided with a cover 12. When the cover 12 is closed, the accommodating chamber 11 is in a closed state; when the cover 12 is opened, different devices 2 to be cooled can be placed in the accommodating chamber 11, which also facilitates observation of the overall situation inside the cooling box 1.

[0055] Furthermore, a storage box 13 for storing a desiccant is provided on the inner wall of the cover 12. The desiccant is placed in the storage box 13 on the cover 12. The desiccant can promptly absorb the moisture in the accommodating cavity 11 to prevent it from contaminating the first coolant and ensure the safety of the two-phase liquid cooling device.

[0056] Furthermore, the cooling box 1 is provided with a transparent observation window 14. The transparent observation window 14 allows the user to observe the internal conditions of the two-phase liquid cooling device in real time, so that the user can observe the conditions of the device to be cooled 2 and the first coolant.

[0057] Furthermore, two removable mounting rods 15 are provided within the accommodating cavity 11. The mounting rods 15 are provided with a plurality of mounting holes 151 spaced apart along their lengths. The two sides of the device to be cooled 2 are bolted into any of the mounting holes 151. Thus, by bolting the device to be cooled 2 to different mounting holes 151, the device to be cooled 2 can be installed at different positions on the mounting rods 15, thereby meeting the installation requirements of devices to be cooled 2 of various specifications and providing a wider range of adaptability.

[0058] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A two-phase liquid cooling device, characterized in that: include: A cooling box (1) has an accommodating chamber (11) therein, wherein a first coolant and a device to be cooled (2) are placed in the accommodating chamber (11), and the first coolant is used to absorb heat from the device to be cooled (2); a first heat exchanger (3) located at the top of the accommodating cavity (11); a second coolant is placed in the first heat exchanger (3); the second coolant is used to absorb heat from the first coolant; a pressure control assembly (4), which is in communication with the cooling box (1), and the pressure control assembly (4) is used to control the pressure in the cooling box (1); A fluid replenishment and purification component (5) is arranged on one side of the cooling box (1) and is in communication with the cooling box (1). The fluid replenishment and purification component (5) is used to transport the first cooling liquid into the cooling box (1) when the first cooling liquid is less than a preset value, and to purify the first cooling liquid.

2. A two-phase liquid cooling device according to claim 1, characterized in that: It also includes an external circulation cooling component (6), which is arranged on one side of the cooling box (1) and is connected to the first heat exchanger (3) for cooling the second coolant.

3. The two-phase liquid cooling device according to claim 1, characterized in that: The rehydration purification component (5) comprises a liquid level sensor (51), a liquid storage tank (52) and a circulation pump (53); a first coolant is placed in the liquid storage tank (52); one end of the circulation pump (53) is connected to the liquid storage tank (52) through a first pipe (54); the other end of the circulation pump (53) is connected to the cooling tank (1) through a second pipe (55); the liquid level sensor (51) is arranged in the cooling tank (1) and is used to obtain the liquid level of the first coolant in the cooling tank (1); and when the liquid level is lower than a preset value, the first coolant is pumped from the liquid storage tank (52) to the cooling tank (1) through the circulation pump (53).

4. A two-phase liquid cooling device according to claim 3, characterized in that: The pressure control assembly (4) comprises a first pressure sensor (41), a pressure control valve (42) and a recovery condenser (43); one end of the recovery condenser (43) is connected to the cooling box (1) through a third pipe (44), and the other end of the recovery condenser is connected to the liquid storage tank (52) through a fourth pipe (45); the pressure control valve (42) and the first pressure sensor (41) are both arranged on the third pipe (44), so that: when the first pressure sensor (41) detects that the pressure of the cooling box (1) is greater than a preset value, the pressure control valve (42) is opened, and the gaseous first coolant in the cooling box (1) is condensed by the recovery condenser (43) and then transported to the liquid storage tank (52).

5. The two-phase liquid cooling device according to claim 3, characterized in that: The rehydration and purification component (5) further comprises a rehydration switching valve (57), a purification switching valve (58) and a purifier (59); one end of the purifier (59) is connected to the cooling box (1) via a fifth pipe (56); the other end of the purifier (59) is connected to the circulation pump (53) via a ninth pipe (50); the first pipe (54) is provided with a rehydration switching valve (57); the fifth pipe (56) is provided with a purification switching valve (58); The rehydration switching valve (57) is used to open during rehydration, while the purification switching valve (58) is closed, and the first coolant is pumped from the liquid storage tank (52) through the first pipe (54), the circulation pump (53), and the second pipe (55) into the cooling box (1); The purification switching valve (58) is used to open during purification, while the refill switching valve (57) is closed, and the first coolant circulates from the cooling box (1) through the fifth pipe (56), the circulation pump (53), and the second pipe (55) to the cooling box (1).

6. The two-phase liquid cooling device according to claim 2, characterized in that: The external circulation cooling component (6) includes an external circulation pump (61), a fan (62) and a second heat exchanger (63), wherein an internal condenser (31) is provided in the first heat exchanger (3), and the second heat exchanger (63) is communicated with one side of the internal condenser (31) through a sixth pipe (64), one end of the external circulation pump (61) is communicated with the other side of the internal condenser (31) through a seventh pipe (65), and the other end of the external circulation pump (61) is communicated with the second heat exchanger (63) through an eighth pipe (66), and a plurality of fans (62) are arranged facing the second heat exchanger (63) to cool the second coolant flowing through the second heat exchanger (63); The sixth pipeline (64) and the eighth pipeline (66) are both provided with a temperature sensor (67) and a second pressure sensor (68).

7. The two-phase liquid cooling device according to claim 1, characterized in that: The top end of the cooling box (1) is hingedly provided with a cover (12), and the first heat exchanger (3) is arranged at the lower end of the cover (12).

8. The two-phase liquid cooling device according to claim 7, characterized in that: The inner wall of the cover (12) is also provided with a storage box (13) for storing a desiccant.

9. The two-phase liquid cooling device according to claim 1, characterized in that: The cooling box (1) is also provided with a transparent observation window (14).

10. The two-phase liquid cooling device according to claim 1, characterized in that: Two detachable mounting rods (15) are provided in the accommodating cavity (11), and a plurality of mounting holes (151) are provided on the mounting rods (15) at intervals along the length direction thereof. Both sides of the device to be cooled (2) are respectively mounted in any of the mounting holes (151) by means of bolts.

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