Liquid sealing joint

By designing a liquid sealing joint with a threaded fastening cap and a sealed connecting column section, the problems of sealing and flow channel connectivity in liquid cooling equipment are solved, and efficient and low-cost connection of liquid cooling structural parts is achieved with strong adaptability and high sealing reliability.

CN223447919UActive Publication Date: 2025-10-17BEIJING HUAHANG RADIO MEASUREMENT & RES INST
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Patent Information

Application Number
CN202423215177.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-10-17
Estimated Expiration
2034-12-25

AI Technical Summary

Technical Problem

In existing liquid cooling devices, the liquid sealing joints have a single function and cannot effectively connect the internal channels of the heat dissipation structure. They also have poor sealing performance, occupy a large space, and are expensive, making it difficult to meet the needs of miniaturization and low-cost design of electronic equipment.

Method used

A liquid sealing joint is designed, including a threaded fastening cap and a sealing connecting column section. The vertical liquid cooling structure is fixed by a threaded connection. Axial and circumferential fluid passages are provided in the sealing connecting column section, and sealing rings are installed at multiple positions to achieve three-level sealing to ensure fluid connectivity and sealing.

Benefits of technology

It realizes efficient connection of the flow channels of liquid-cooled structural parts in a miniaturized space, reduces the space occupancy and manufacturing cost of the sealing joint, improves the sealing reliability and adaptability, and is suitable for a variety of fluid connection methods.

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Abstract

The utility model relates to a liquid sealing joint, belongs to the technical field of sealing joints, and solves the problem that a sealing joint in the prior art is single in function and cannot be communicated with an internal channel of a heat dissipation structural part. A liquid sealing connector comprises a threaded fastening cap and a sealing communication column section. An external thread is arranged on the outer side of the threaded fastening cap and is used for being screwed with a joint mounting hole in the second liquid cooling structural member through a thread; the sealing communication column section can be plugged into the joint mounting hole and is in sealing contact with the joint mounting hole; an axial fluid passage extending in the axis direction of the sealing communication column section is arranged at the end of the sealing communication column section, and a circumferential fluid passage communicated to the axial fluid passage is arranged on the outer side face of the circumference of the sealing communication column section; the axial fluid channel is used for communicating with an internal flow channel of the first liquid cooling structural component, and the circumferential fluid channel can communicate with an internal flow channel of the second liquid cooling structural component. According to the utility model, conduction and sealing of two liquid cooling structural members which are perpendicular to each other are realized.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of liquid cooling heat dissipation, and in particular to a liquid sealing joint. BACKGROUND

[0002] At present, with the increasing integration of various electronic components and the increasing complexity of functions, the heat and heat power of electronic components are continuously increasing. However, the requirement for miniaturization of electronic devices is becoming higher and higher, and the space available for heat dissipation is continuously decreasing. Research shows that temperature has become the main cause of failure of electronic devices, so the thermal control research for electronic devices is imminent.

[0003] Liquid cooling heat dissipation is a commonly used heat dissipation scheme in the industry, which has high heat dissipation efficiency and simple design. However, the sealing is a problem that must be considered for electronic device heat dissipation. Once the cooling liquid leaks, there is a risk of short circuit. The sealing element is the core component of the liquid cooling scheme. The commonly used plug-in sealing element occupies a large space volume, has poor sealing effect, and has high procurement cost. Moreover, the existing sealing structure does not have the function of connecting adjacent heat dissipation structure elements, which conflicts with the design requirements of miniaturization and low cost of electronic devices.

[0004] Based on this, the utility model provides a liquid sealing joint. SUMMARY

[0005] In view of the above analysis, the present application aims to provide a liquid sealing joint to solve the problem that the existing liquid cooling heat dissipation device has a single function of the liquid sealing joint and cannot connect the internal channels of the heat dissipation structure elements.

[0006] The purpose of the present application is mainly realized through the following technical solutions:

[0007] A liquid sealing joint is used to connect a first liquid cooling structure element and a second liquid cooling structure element, the first liquid cooling structure element and the second liquid cooling structure element are arranged perpendicular to each other and fixedly connected as a whole, and the liquid sealing joint comprises a threaded fastening cap and a sealing communication column segment.

[0008] The outer side of the threaded fastening cap is provided with an external thread for threaded rotation with a joint mounting hole on the second liquid cooling structure element;

[0009] The sealing communication column segment can be inserted into the joint mounting hole and in sealing contact with each other;

[0010] The end of the sealing communication column section is provided with an axial fluid passage extending along the axial direction of the sealing communication column section, and a circumferential fluid passage is arranged on the circumferential outer side of the sealing communication column section and communicated with the axial fluid passage; the axial fluid passage is used for communicating with the internal flow channel of the first liquid cooling structure, and the circumferential fluid passage can be communicated with the internal flow channel of the second liquid cooling structure.

[0011] Further, a plurality of the circumferential fluid passages are equidistantly arranged on the circumferential side of the sealing communication column section.

[0012] Further, a first sealing ring groove is arranged on the circumferential side of the sealing communication column section, and a first sealing ring is arranged in the first sealing ring groove.

[0013] Further, the first sealing ring groove is arranged on the upper side of the circumferential fluid passage.

[0014] Further, a second sealing ring groove is arranged on the circumferential side of the sealing communication column section, and a second sealing ring is arranged in the second sealing ring groove.

[0015] Further, the second sealing ring groove is arranged on the lower side of the circumferential fluid passage.

[0016] Further, a third sealing ring groove is arranged on the end surface of the sealing communication column section.

[0017] Further, the third sealing ring groove is arranged on the outer side of the axial fluid passage and coaxially arranged with the axial fluid passage.

[0018] Further, a third sealing ring is arranged in the third sealing ring groove.

[0019] Further, a slot is arranged on the outer end surface of the threaded fastening cap, and a slot screwdriver can be used to tighten the threaded fastening cap.

[0020] The technical scheme of the present application can at least achieve one of the following effects:

[0021] 1. The liquid sealing joint of the utility model, which is provided with an axial fluid passage in the axial direction of the sealing communication column section and an axial fluid passage on the circumferential side, so that the liquid sealing joint can realize 90° liquid reversing and the communication of the internal flow channels of the first liquid cooling structure and the second liquid cooling structure, and the occupied space volume is small.

[0022] 2. The liquid sealing joint of the utility model, which is provided with a first sealing ring groove and a second sealing ring groove on the upper and lower sides of the circumferential fluid passage of the circumferential side of the sealing communication column section, a third sealing ring groove is arranged on the end surface of the sealing communication column section, and a sealing ring is arranged in each of the three sealing ring grooves to realize three-stage sealing, so that the sealing property of the liquid passage is ensured.

[0023] 3. The liquid sealing joint of the utility model relates to all parts can be realized through common machining, low cost, high reliability;

[0024] 4. The liquid sealing joint of the utility model, a plurality of circumferential fluid passages are arranged in the circumferential direction of the sealing communication column section, the fluid passages inside multiple groups of liquid cooling structural members are communicated through the multiple circumferential uniformly distributed openings, so that the water flow channel can be designed in series or in parallel, the use mode is diversified, and the adaptability is strong.

[0025] In the present application, the above technical solutions can be combined with each other to realize more preferred combination solutions. Other features and advantages of the present application will be described in the subsequent specification, and some advantages will become apparent from the specification or be understood by implementing the present application. The purposes and other advantages of the present application can be realized and obtained from the contents specifically pointed out in the specification and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0026] The accompanying drawings are included to provide a further understanding of the embodiments, and are incorporated in and constitute a part of this specification, illustrate embodiments of the application, and together with the description serve to explain the principles of the application. In the drawings:

[0027] Figure 1 It is a schematic view of the installation state of the liquid sealing joint of the utility model;

[0028] Figure 2 It is an exploded view of the liquid sealing joint of the utility model;

[0029] Figure 3 It is a structural schematic view of the threaded fastening cap of the liquid sealing joint of the utility model;

[0030] Figure 4 It is a structural schematic view of the sealing communication column section of the liquid sealing joint of the utility model.

[0031] REFERENCE NUMERALS:

[0032] 1 - first liquid cooling structural member; 2 - second liquid cooling structural member; 3 - liquid sealing joint;

[0033] 31 - threaded fastening cap; 32 - sealing communication column section; 33 - first sealing ring; 34 - second sealing ring; 35 - third sealing ring;

[0034] 311 - external thread; 312 - one-word type groove; 321 - axial fluid passage; 322 - circumferential fluid passage; 323 - first sealing ring groove; 324 - second sealing ring groove; 325 - third sealing ring groove. DETAILED DESCRIPTION

[0035] The preferred embodiments of the present application will be described in detail below with reference to the drawings, in which the same or similar components are denoted by the same reference numerals, for the purpose of illustrating the principles of the present application, and are not intended to limit the scope of the present application.

[0036] Embodiment 1

[0037] In one embodiment of the present application, a liquid sealing joint is disclosed, as shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 The liquid sealing joint 3 is used to connect a first liquid cooling structure 1 and a second liquid cooling structure 2, which are arranged perpendicularly and fixedly connected as a whole. The liquid sealing joint 3 comprises a threaded fastening cap 31 and a sealing communication column segment 32. The outer side of the threaded fastening cap 31 is provided with external threads 311 for threaded rotation with a joint mounting hole on the second liquid cooling structure 2. The sealing communication column segment 32 can be inserted into the joint mounting hole and sealingly contacted. The end of the sealing communication column segment 32 is provided with an axial fluid passage 321 extending along its own axis direction. The circumferential outer side of the sealing communication column segment 32 is provided with a circumferential fluid passage 322 connected to the axial fluid passage 321. The axial fluid passage 321 is used to connect the internal flow channel of the first liquid cooling structure 1, and the circumferential fluid passage 322 can be connected to the internal flow channel of the second liquid cooling structure 2.

[0038] Preferably, as shown in Figure 2 The diameter of the threaded fastening cap 31 is greater than the diameter of the sealing communication column segment 32. Correspondingly, the joint mounting hole is a stepped hole, the large hole of the joint mounting hole is a threaded hole, and the small hole of the joint mounting hole is a cylindrical hole. The threaded hole is used for threaded rotation with the external threads 311 of the threaded fastening cap 31, and the cylindrical hole is used for insertion with the sealing communication column segment 32.

[0039] Preferably, the end surface of the sealing communication column segment 32 abuts against the inner end surface of the joint mounting hole, and the axial fluid passage 321 is connected to the internal flow channel of the first liquid cooling structure 1.

[0040] Preferably, the side surface of the sealing communication column segment 32 is in extrusion contact with the side surface of the cylindrical hole of the joint mounting hole, and the circumferential fluid passage 322 is connected to the internal flow channel of the second liquid cooling structure 2. In this way, the internal flow channel of the first liquid cooling structure 1 can be connected to the internal flow channel of the second liquid cooling structure 2 through the axial fluid passage 321 and the circumferential fluid passage 322 of the sealing communication column segment 32.

[0041] Further, as shown in Figure 2 , Figure 4As shown, the circumferential fluid passage 322 is arranged with multiple equidistant first sealing ring grooves 323 on the circumferential side of the sealing communication column segment 32.

[0042] Further, as shown in the figure, Figure 2 As shown, the circumferential side of the sealing communication column segment 32 is arranged with a first sealing ring groove 323; the first sealing ring 33 is installed in the first sealing ring groove 323.

[0043] Further, as shown in the figure, Figure 4 As shown, the first sealing ring groove 323 is arranged on the upper side of the circumferential fluid passage 322.

[0044] Further, as shown in the figure, Figure 4 As shown, the circumferential side of the sealing communication column segment 32 is arranged with a second sealing ring groove 324; the second sealing ring 34 is installed in the second sealing ring groove 324.

[0045] Further, the second sealing ring groove 324 is arranged on the lower side of the circumferential fluid passage 322.

[0046] Further, as shown in the figure, Figure 4 As shown, the end surface of the sealing communication column segment 32 is arranged with a third sealing ring groove 325.

[0047] Further, as shown in the figure, Figure 4 As shown, the third sealing ring groove 325 is arranged on the outer side of the axial fluid passage 321 and coaxially arranged with the axial fluid passage 321.

[0048] Further, the third sealing ring 35 is installed in the third sealing ring groove 325.

[0049] Further, a slot 312 is arranged on the outer end surface of the threaded fastening cap 31, which can cooperate with a slot screwdriver to tighten the threaded fastening cap 31.

[0050] In this embodiment, the threaded fastening cap 31 and the sealing communication column segment 32 are in a split structure; since the sealing communication column segment 32 cannot rotate (rotation will cause friction damage to the sealing ring), the threaded fastening cap 31 is designed, an inner threaded hole is designed on the liquid cooling structure, an outer thread is designed on the threaded fastening cap 31, both use ordinary fine thread, and the threaded fastening cap is reserved with a slot 312 for tightening. After the threaded fastening cap 31 is tightened, the sealing communication column segment 32 is pressed tightly, thereby realizing the sealing effect.

[0051] In the utility model, the three-stage sealing ring is selected as a standard O-shaped ring, the material is rubber, the cost is low, the service life is high, and the reliability is strong.

[0052] In implementation, the sealing communication column segment 32 is inserted into the cylindrical hole of the joint mounting hole, and then the slot 312 on the end surface of the threaded fastening cap 31 is matched with a screwdriver, and then the threaded fastening cap 31 is screwed into the threaded hole of the joint mounting hole and presses the sealing communication column segment 32.

[0053] After installation, the end surface of the sealing communication column segment 32 abuts against the inner end surface of the joint mounting hole and is sealed by the third sealing ring 35; the side surface of the sealing communication column segment 32 is in extrusion contact with the side surface of the cylindrical hole of the joint mounting hole and is sealed by the first sealing ring 33 and the second sealing ring 34; the axial fluid passage 321 is connected with the internal flow channel of the first liquid cooling structure 1; and the circumferential fluid passage 322 is connected with the internal flow channel of the second liquid cooling structure 2. The internal flow channel of the first liquid cooling structure 1 is connected with the internal flow channel of the second liquid cooling structure 2 through the axial fluid passage 321 and the circumferential fluid passage 322 of the sealing communication column segment 32.

[0054] Compared with the prior art, the technical scheme provided by the embodiment has at least one of the following beneficial effects:

[0055] 1. The liquid sealing joint 3 of the utility model is used for connecting between two liquid cooling structures, and compared with the conventional plug-in sealing element, the liquid sealing joint 3 used by the utility model can be used for conducting and sealing the liquid passage in the two liquid cooling structures (the first liquid cooling structure 1 and the second liquid cooling structure 2) perpendicular to each other, as shown in the figure. Figure 1

[0056] 2. The liquid sealing joint of the utility model, the sealing communication column segment is used for guiding the cooling liquid from the first liquid cooling structure 1 into the second liquid cooling structure 2, and the internal design has an axial fluid passage 321 and a circumferential fluid passage 322, wherein the circumferential fluid passage 322 is eight evenly distributed holes, the axial fluid passage 321 and the circumferential fluid passage 322 are connected with each other, the two fluid passages are connected with the first liquid cooling structure 1 and the second liquid cooling structure 2 respectively, three sealing ring grooves are designed on the liquid sealing joint, three sealing rings are installed in the three sealing ring grooves, the sealing of the liquid is realized, and the sealing reliability is high.

[0057] 3. The liquid sealing joint of the utility model, compared with the conventional plug-in sealing joint, the space occupancy rate is reduced by more than 50%, and the liquid sealing joint can be directly produced in the form of machining, and the sealing ring used is a standard sealing ring, and the manufacturing cost can be reduced by more than 80%.

[0058] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this, and any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.​

Claims

1. A liquid sealing joint, characterized in that: The liquid sealing joint (3) is used to connect the first liquid cooling structure (1) and the second liquid cooling structure (2), the first liquid cooling structure (1) and the second liquid cooling structure (2) are arranged perpendicular to each other and fixedly connected as a whole; the liquid sealing joint (3) comprises: a threaded fastening cap (31) and a sealing connecting column section (32); The outer side of the threaded fastening cap (31) is provided with an external thread (311) for being threadedly connected to the joint mounting hole on the second liquid-cooling structural component (2); The sealing connecting column section (32) can be inserted into the joint installation hole, and the two are in sealing contact; The end of the sealing connecting column section (32) is provided with an axial fluid passage (321) extending along its own axial direction, and the circumferential outer surface of the sealing connecting column section (32) is provided with a circumferential fluid passage (322) connected to the axial fluid passage (321); the axial fluid passage (321) is used to connect to the internal flow channel of the first liquid-cooling structural component (1), and the circumferential fluid passage (322) can be connected to the internal flow channel of the second liquid-cooling structural component (2).

2. The liquid-tight joint according to claim 1, characterized in that: A plurality of circumferential fluid passages (322) are arranged at equal intervals on the circumferential side surface of the sealed communicating column section (32).

3. The liquid-tight joint according to claim 1 or 2, characterized in that: A first sealing ring groove (323) is provided on the circumferential side surface of the sealing connecting column section (32); a first sealing ring (33) is installed in the first sealing ring groove (323).

4. The liquid-tight joint according to claim 3, characterized in that: The first sealing ring groove (323) is provided on the upper side of the circumferential fluid passage (322).

5. The liquid-tight joint according to claim 1 or 2, characterized in that: A second sealing ring groove (324) is provided on the circumferential side surface of the sealing connecting column section (32); a second sealing ring (34) is installed in the second sealing ring groove (324).

6. The liquid-tight joint according to claim 5, characterized in that: The second sealing ring groove (324) is provided on the lower side of the circumferential fluid passage (322).

7. The liquid-tight joint according to claim 1 or 2, characterized in that: A third sealing ring groove (325) is provided on the end surface of the sealing connecting column section (32).

8. The liquid-tight joint according to claim 7, characterized in that: The third sealing ring groove (325) is arranged outside the axial fluid passage (321) and is coaxially arranged with the axial fluid passage (321).

9. The liquid-tight joint according to claim 8, characterized in that: A third sealing ring (35) is installed in the third sealing ring groove (325).

10. The liquid-tight joint according to claim 1, wherein: A straight groove (312) is provided on the outer end surface of the threaded fastening cap (31), which can be used with a straight screwdriver to tighten the threaded fastening cap (31).