Sealing structure of immersed liquid cooling server cabinet

Abstract

The utility model relates to a sealing structure of an immersed liquid-cooled server cabinet, and aims to solve the technical problem that the cabinet loses sealing performance due to pressure fluctuation deformation in a sealing cavity caused by two-phase conversion of cooling liquid in the prior art, and adopts the technical scheme that a cabinet body is connected with an upper cover through a plurality of locking bolts; a V-shaped cabinet body groove is formed in the connecting position of the top face of the cabinet body, a V-shaped trapezoid step is arranged at the connecting position of the bottom face of the upper cover, the trapezoid step is inserted into the cabinet body groove, a first groove and a second groove are symmetrically formed in the middle of the inner inclined face and the middle of the outer inclined face of the V-shaped cabinet body groove, and an outer seal is arranged between the trapezoid step and the outer inclined face of the cabinet body groove. And an inner seal is arranged between the inner side inclined surface of the groove of the cabinet body. According to the sealing structure, waste can be turned into wealth, pressure fluctuation in the sealing cavity can be caused by heat load fluctuation formed by two-phase conversion of cooling liquid, the sealing effect is better, and the cooling liquid is prevented from overflowing or external impurities are prevented from entering a system.

Description

Technical Field

[0001] The utility model belongs to the technical field of server sealing structures, and in particular relates to a sealing structure of an immersion liquid cooling server cabinet. Background Art

[0002] With the rapid development of industries such as artificial intelligence, cloud computing, and big data, the scale of data centers is also constantly expanding. However, the large amount of heat generated during data center operation can no longer be completely dissipated through traditional air cooling. Currently, the main cooling method available for data centers is liquid cooling technology.

[0003] Liquid cooling technologies include non-contact cooling, primarily using cold plates, and contact cooling, primarily using immersion and spraying. Cold plate cooling, due to its earlier development and relatively mature technology, remains the mainstream market. However, due to limitations in processing, its heat dissipation capacity has reached a bottleneck. While spraying significantly improves cooling efficiency, its uneven contact surface leads to poor temperature uniformity across the server. Immersion cooling significantly improves cooling efficiency and provides a more uniform contact surface with the heat source, making it the future development direction of liquid cooling. However, its current strict coolant requirements and high cost significantly increase costs.

[0004] Immersion cooling includes single-phase immersion cooling and phase-change immersion cooling. Single-phase immersion cooling uses contact between the coolant and the equipment for natural heat exchange, resulting in lower cooling efficiency. Phase-change immersion cooling uses a coolant with a lower boiling point, absorbing heat through boiling and vaporization. The coolant is then condensed into a liquid state through a cooling device, achieving efficient heat dissipation and coolant recycling.

[0005] Phase change immersion cooling (PCI) places high demands on equipment sealing. It must prevent coolant vapor from leaking, thereby increasing coolant utilization, while also preventing foreign matter from entering the cooling system and contaminating the coolant, reducing cooling efficiency. Differences in sealing structure directly impact the effectiveness of the seal, so a well-designed sealing structure can significantly reduce the cost of PCI.

[0006] Phase-change immersion cooling requires high levels of sealing performance. The heat load fluctuations caused by the two-phase conversion of the coolant can cause pressure fluctuations within the sealed chamber. When the pressure in a two-phase immersion cooling system is too high, the server cabinet will bulge and deform, causing conventional seals to lose their sealing function. This can lead to a large amount of gaseous coolant overflow, resulting in significant coolant loss and possible environmental pollution. When the pressure is too low, the system operates at negative pressure, causing the server cabinet to squeeze and deform, causing conventional seals to lose their sealing function, allowing foreign impurities and non-condensable gases to enter the system, contaminating the coolant and reducing cooling efficiency. Utility Model Content

[0007] The purpose of the utility model is to solve the above problems and provide a sealing structure for an immersion liquid cooling server cabinet.

[0008] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0009] A sealing structure for an immersion liquid-cooled server cabinet, wherein the cabinet body and the upper cover are connected by a number of locking bolts, a "V"-shaped cabinet groove is provided at the top surface connection of the cabinet body, and a "V"-shaped trapezoidal step is provided at the bottom surface connection of the upper cover, the trapezoidal step is inserted into the cabinet groove, and a first groove and a second groove are symmetrically provided in the middle of the inner and outer inclined surfaces of the "V"-shaped cabinet groove, an outer seal is provided between the trapezoidal step and the outer inclined surface of the cabinet groove, and an inner seal is provided between the trapezoidal step and the inner inclined surface of the cabinet groove.

[0010] Furthermore, the outer seal and the inner seal have the same structure, both being inclined "F"-shaped structures with a bulge in the middle, and the bulge of the inner seal is inserted into the first groove, while the bulge of the outer seal is inserted into the second groove.

[0011] Furthermore, the outer seal and the inner seal are made of any TPE.

[0012] Furthermore, two upper cover handles are provided on the top surface of the upper cover.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model provides a V-shaped groove and a trapezoidal step at the connection between the cabinet body and the upper cover, and provides an inner seal and an outer seal to form a tightly combined sealing structure, which greatly improves the sealing performance of the cabinet, extends the service life of the cabinet, and reduces the replacement frequency of the seals;

[0015] 2. The sealing structure of the utility model can turn waste into treasure. The heat load fluctuation caused by the two-phase conversion of the coolant will cause pressure fluctuation in the sealing cavity, making the sealing effect better, avoiding coolant overflow or preventing external impurities from entering the system;

[0016] 3. A protrusion is provided between the outer seal and the inner seal of the utility model, which is inserted into the inclined groove, which can prevent the inner seal and the outer seal from slipping and further enhance the sealing effect;

[0017] 4. The utility model has a simple structure, low cost and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2This is a schematic diagram of the cross-sectional structure of the utility model when the pressure inside the cabinet is too high;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model when the pressure inside the cabinet is too low;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the sealing portion of the cabinet of the present invention;

[0022] Figure 5 It is a schematic diagram of the cross-sectional structure of the outer seal or inner seal of the utility model;

[0023] In the figure; 1-cabinet body, 1.1-cabinet body groove; 1.2-first groove; 1.3-second groove; 2-upper cover; 2.1-trapezoidal step; 3-upper cover handle; 4-locking bolt; 5-external seal; 6-inner seal; 5.1-protrusion. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] like Figure 1-5 As shown, a sealing structure of an immersion liquid cooling server cabinet is shown. The cabinet body 1 and the upper cover 2 are connected by a number of locking bolts 4. The top surface of the upper cover 2 is provided with two upper cover handles 3, which can be lifted vertically to facilitate the replacement of the coolant while avoiding damage to the sealing structure. A "V"-shaped cabinet groove 1.1 is provided at the top surface connection of the cabinet body 1, and a "V"-shaped trapezoidal step 2.1 is provided at the bottom surface connection of the upper cover 2. The trapezoidal step 2.1 is inserted into the cabinet groove 1.1. The middle part of the inner and outer inclined surfaces of the "V"-shaped cabinet groove 1.1 is symmetrically provided with a first groove 1.2 and a second groove 1.3. An outer seal 5 is provided between the shaped step 2.1 and the outer inclined surface of the cabinet groove 1.1, and an inner seal 6 is provided between the shaped step 2.1 and the inner inclined surface of the cabinet groove 1.1. The outer seal 5 and the inner seal 6 are made of any kind of TPE and have the same structure, both of which are inclined "F"-shaped structures with a protrusion 5.1 in the middle. The protrusion 5.1 of the inner seal 6 is inserted into the first groove 1.2, and the protrusion 5.1 of the outer seal 5 is inserted into the second groove 1.3. The outer seal 5 and the inner seal 6 can work in an environment of (-50°~120°), have good extrusion resistance in a high-pressure environment, and also have good sealing performance in a low-pressure environment.

[0026] The working process of this utility model:

[0027] Place the outer seal 5 and the outer seal 6 between the trapezoidal step 2.1 and the cabinet groove 1.1, and then connect the cabinet 1 and the upper cover 2 with the locking bolts 4, so that the trapezoidal step 2.1 is tightly combined with the cabinet groove 1.1 to achieve a sealing effect.

[0028] When the cabinet 1 bulges and deforms due to excessive system pressure, the trapezoidal step 2.1 will be deflected outward due to the deformation of the upper cover 2. At this time, the trapezoidal step 2.1 will apply normal pressure to the outer seal 5, improving the sealing effect of the outer seal 5. At the same time, the protrusion 5.1 will contact the second groove 1.3 more closely, preventing the outer seal 5 from slipping and further enhancing the sealing effect of the outer seal 5 to prevent the gaseous coolant from overflowing.

[0029] When the cabinet 1 is squeezed and deformed due to low system pressure, the trapezoidal step 2.1 will be biased inward due to the deformation of the upper cover 2. At this time, the trapezoidal step 2.1 will exert normal pressure on the inner seal 6, thereby improving the sealing effect of the inner seal 6. At the same time, the protrusion 5.1 of the inner seal 6 is in closer contact with the first groove 1.2, which can prevent the inner seal 6 from slipping and further enhance the sealing effect of the inner seal 6, thereby preventing external impurities from entering the system.

Claims

1. A sealing structure for an immersion liquid cooling server cabinet, wherein the cabinet body (1) and the upper cover (2) are connected by a plurality of locking bolts (4), characterized in that: A V-shaped cabinet groove (1.1) is provided at the top surface connection of the cabinet (1), a V-shaped trapezoidal step (2.1) is provided at the bottom surface connection of the upper cover (2), the trapezoidal step (2.1) is inserted into the cabinet groove (1.1), a first groove (1.2) and a second groove (1.3) are symmetrically provided in the middle of the inner and outer inclined surfaces of the V-shaped cabinet groove (1.1), an outer seal (5) is provided between the trapezoidal step (2.1) and the outer inclined surface of the cabinet groove (1.1), and an inner seal (6) is provided between the trapezoidal step (2.1) and the inner inclined surface of the cabinet groove (1.1).

2. The sealing structure of an immersion liquid cooling server cabinet according to claim 1, characterized in that: The outer seal (5) and the inner seal (6) have the same structure, both being inclined "F"-shaped structures, with a bulge (5.1) in the middle, and the bulge (5.1) of the inner seal (6) being inserted into the first groove (1.2), while the bulge (5.1) of the outer seal (5) being inserted into the second groove (1.3).

3. The sealing structure of an immersion liquid cooling server cabinet according to claim 2, characterized in that: The outer seal (5) and the inner seal (6) are made of any TPE.

4. The sealing structure of an immersion liquid cooling server cabinet according to claim 1, characterized in that: Two upper cover handles (3) are provided on the top surface of the upper cover (2).

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