A large flow valve stem and fluid connector

Abstract

The utility model discloses a large flow valve stem, it includes the stem body, one end of stem body is equipped with first flow guide part, is equipped with a plurality of arc flow guide groove on first flow guide part, and the first flow guide part is close to the one end of stem body and is the conical structure, the other end of stem body is equipped with second flow guide part, and the second flow guide part is close to the one end of stem body and is the conical structure, in the utility model, through setting the conical structure at the both ends of stem body and setting a plurality of arc flow guide groove at one end, can effectively reduce the cross section area proportion of valve stem, thereby increasing the flow area proportion of fluid and improving flow coefficient. Correspondingly, the utility model discloses a fluid connector, which comprises a large flow valve stem as described above.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a high-flow valve stem and fluid connector. Background Technology

[0002] In liquid cooling systems for high-power servers and other electronic devices, fluid connectors are critical transmission components, and their performance directly affects the flow rate of the coolant and the system's heat dissipation efficiency. The flow coefficient (Cv value) is a key indicator for measuring the flow capacity of a fluid connector; a higher Cv value means that a larger flow rate can pass through under the same pressure difference, thereby dissipating heat from the device more quickly.

[0003] As the core component of the valve core in a fluid connector, the valve stem's structural design has a decisive impact on the Cv value. Traditional valve stems are typically simple cylindrical structures, which have the following drawbacks: the cylindrical structure significantly impedes fluid flow, and its limited flow channel cross-sectional area creates a bottleneck for flow rate improvement, resulting in significant resistance to the fluid and a low flow coefficient, making it difficult to meet the requirements of high heat dissipation and power consumption. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a high-flow-rate valve stem and fluid connector to solve the problem of low flow coefficient caused by existing valve stems.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a high-flow valve stem, which includes a stem body, a first flow guide part is provided at one end of the stem body, a plurality of arc-shaped flow guide grooves are provided on the first flow guide part, and the end of the first flow guide part near the stem body is tapered, and a second flow guide part is provided at the other end of the stem body, the end of the second flow guide part near the stem body is tapered.

[0006] Furthermore, in the high-flow valve stem of this utility model, the first guide portion includes a first guide section and a second guide section. One end of the second guide section is connected to the first guide section, and the other end of the second guide section is connected to the stem body. The cross-sectional area of ​​the second guide section gradually decreases along its axial direction toward the stem body to form a conical structure.

[0007] Furthermore, the large flow valve stem of this utility model also includes multiple support parts, which are disposed on the first guide section and are evenly distributed along the circumference of the first guide section.

[0008] Furthermore, in the large flow valve stem described in this utility model, the number of the support portions is the same as the number of the arc-shaped guide grooves, and the support portions extend from the middle position of two adjacent arc-shaped guide grooves.

[0009] Furthermore, in the high-flow valve stem of this utility model, the second guide portion includes a third guide section and a fourth guide section. One end of the third guide section is connected to the stem body, and the other end is connected to the fourth guide section. The cross-sectional area of ​​the third guide section gradually increases along its axial direction toward the fourth guide section to form a conical structure.

[0010] Furthermore, in the high-flow valve stem described in this utility model, an annular groove is provided on the fourth guide section, and the annular groove is used to place a sealing ring.

[0011] Furthermore, in the high-flow valve stem described in this utility model, a plurality of the arc-shaped guide grooves are evenly distributed along the circumference of the first guide portion.

[0012] Accordingly, this utility model also provides a fluid connector, which includes a housing, a movable valve, and a high-flow valve stem as described above. The housing has a movable cavity, the high-flow valve stem is disposed in the movable cavity, and the movable valve is movably disposed in the movable cavity to fit against the second flow guide to form a sealing fit structure, or to separate from the second flow guide to form a flow gap.

[0013] Furthermore, in the fluid connector described in this utility model, the movable valve is provided with a stepped portion, and the fluid connector also includes an elastic element, one end of which abuts against the inner wall of the housing, and the other end of which abuts against the stepped portion.

[0014] Furthermore, in the fluid connector described in this utility model, the movable valve is also provided with two milled planes, which are symmetrically arranged on the outer side of the movable valve.

[0015] The beneficial effects of this invention are as follows: Firstly, compared to a valve stem with a single cylindrical structure, this invention, by creating multiple inwardly recessed arc-shaped guide grooves on the first guide section, can effectively reduce the cross-sectional area ratio of the valve stem in the flow channel, providing a more ample flow path for the fluid and thus improving the flow coefficient of the valve stem. Secondly, compared to a valve stem with a single cylindrical structure, by setting conical first and second guide sections at both ends of the stem, it can also reduce the cross-sectional area ratio of the valve stem and improve the flow coefficient of the valve stem. In addition, the conical structures at both ends can smoothly guide the inflow and outflow of fluid, that is, smoothly guide the fluid flow, reduce the pressure loss caused by abrupt changes in cross-sectional area, thereby reducing turbulence and eddies caused by abrupt changes in the flow channel cross-section. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the high-flow valve stem described in this utility model from one perspective under one embodiment.

[0017] Figure 2 This is a schematic diagram of the high-flow valve stem described in this utility model from another perspective under one embodiment.

[0018] Figure 3 This is a schematic diagram of the structure of the fluid connector described in this utility model from one perspective under one embodiment.

[0019] Figure 4 This is a front view of the fluid connector described in one embodiment of the present invention.

[0020] Figure 5 for Figure 4 The diagram shows a cross-sectional view of the fluid connector.

[0021] Figure 6 This is an exploded view of the structure of the fluid connector described in this utility model from one perspective in one embodiment.

[0022] Figure 7 This is an exploded view of another structure of the fluid connector described in this utility model from one perspective under one embodiment.

[0023] Figure 8 This is a schematic diagram of the movable valve in the fluid connector of this utility model in one embodiment.

[0024] Label Explanation: 1. High-flow valve stem; 11. Stem body; 2. First guide section; 21. Arc-shaped guide groove; 22. First guide segment; 23. Second guide segment; 24. Support section; 3. Second guide section; 31. Third guide section; 32. Fourth guide section; 33. Annular groove; 4. Sealing ring; 5. Shell; 51. Main shell; 52. Outer shell; 53. Tailpipe; 54. Movable cavity; 6. Movable valve; 61. Stepped section; 62. Milled surface. Detailed Implementation

[0025] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0026] Please refer to Figure 1 as well as Figure 2This utility model provides a high-flow valve stem 1, which includes a stem body 11. One end of the stem body 11 is provided with a first flow guide 2. The first flow guide 2 is provided with a plurality of circumferentially evenly distributed arc-shaped flow guide grooves 21. The end of the first flow guide 2 near the stem body 11 has a conical structure. The other end of the stem body 11 is provided with a second flow guide 3. The end of the second flow guide 3 near the stem body 11 has a conical structure.

[0027] As can be seen from the above description, the beneficial effects of this utility model are as follows: On the one hand, compared with a valve stem with a single cylindrical structure, this utility model, by opening multiple inwardly recessed arc-shaped guide grooves 21 on the first guide portion 2, can effectively reduce the cross-sectional area ratio of the valve stem in the flow channel, providing a more ample flow path for the fluid, thereby improving the flow coefficient of the valve stem. On the other hand, compared with a valve stem with a single cylindrical structure, by setting a first guide portion 2 and a second guide portion 3 with conical structures at both ends of the stem body 11, it can also reduce the cross-sectional area ratio of the valve stem, thereby improving the flow coefficient of the valve stem. In addition, the conical structures at both ends can smoothly guide the inflow and outflow of fluid, that is, smoothly guide the fluid flow, reduce the pressure loss caused by the sudden change in cross-sectional area, and thus reduce turbulence and eddies caused by the sudden change in the flow channel cross-section. Further, as Figure 1 As shown, in the high-flow valve stem of this utility model, multiple arc-shaped guide grooves 21 are evenly distributed along the circumference of the first guide portion 2. In practical applications, the number of arc-shaped guide grooves 21 is three, and the included angle between adjacent arc-shaped guide grooves 21 is 120°. It should be noted that in this utility model, the cross-section of the arc-shaped guide groove in the direction perpendicular to the valve stem axial direction presents an arc-shaped structure, that is, the bottom surface of the arc-shaped guide groove is an arc-shaped surface.

[0028] As can be seen from the above description, the circumferentially uniform distribution design of the arc-shaped guide groove 21 can ensure that the fluid is subjected to balanced force when flowing through the valve stem, avoid fluid deviation or vibration caused by uneven position of the arc-shaped guide groove 21, and improve the stability of the valve stem.

[0029] Furthermore, such as Figure 2 As shown, in the high-flow valve stem of this utility model, the first guide portion 2 includes a first guide section 22 and a second guide section 23. The diameter of the first guide section 22 is larger than the diameter of the rod body 11. One end of the second guide section 23 is connected to the first guide section 22, and the other end of the second guide section 23 is connected to the rod body 11. The cross-sectional area of ​​the second guide section 23 gradually decreases along its axial direction toward the rod body 11 to form a conical structure.

[0030] As described above, by dividing the first guide section 2 into a first guide section 22 and a second guide section 23, and gradually reducing the cross-sectional area of ​​the second guide section 23 along the axial direction, a smoothly transitioning conical structure is formed. This not only further optimizes the flow path of the fluid and reduces the resistance of the fluid in the guide section, but also effectively avoids eddies and local pressure drops caused by abrupt changes in cross-section, thereby improving the flow efficiency of the fluid.

[0031] Furthermore, such as Figure 2 As shown, the large flow valve stem of this utility model also includes a plurality of support portions 24 disposed on the first guide section 22, and the plurality of support portions 24 are evenly distributed along the circumference of the first guide section 22.

[0032] As described above, multiple circumferentially evenly distributed support portions 24 are provided on the first guide section 22, which facilitates the fixing of the valve stem to other components (such as the housing 5) via the support portions 24, effectively preventing the valve stem from shifting or vibrating under fluid impact and ensuring long-term operational reliability. Simultaneously, the circumferentially even distribution of the support portions 24 ensures the uniformity of fluid flow within the receiving cavity, avoiding uneven fluid flow or increased local pressure drop caused by uneven positioning of the support portions 24.

[0033] Furthermore, such as Figure 2 As shown, in the large flow valve stem of this utility model, the number of the support parts 24 is the same as the number of the arc-shaped guide grooves 21, and the support parts 24 extend from the middle position of two adjacent arc-shaped guide grooves 21.

[0034] As can be seen from the above description, by placing the support part 24 in the middle position of the adjacent arc-shaped guide grooves 21, the uniform distribution of support strength is ensured, and the interference with the flow field inside the arc-shaped guide grooves 21 is avoided, thereby further improving the stability and flow guiding efficiency of the valve stem.

[0035] Furthermore, such as Figure 2 As shown, in the large flow valve stem of this utility model, the second guide section 3 includes a third guide section 31 and a fourth guide section 32. One end of the third guide section 31 is connected to the rod body 11, and the other end is connected to the fourth guide section 32. The cross-sectional area of ​​the third guide section 31 gradually increases along its axial direction toward the fourth guide section 32 to form a conical structure. The outer diameter of the fourth guide section 32 is larger than the outer diameter of the rod body 11.

[0036] As can be seen from the above description, the third guide section 31 has a conical flared design, which can effectively guide the fluid from the rod 11 to the outlet smoothly and reduce turbulence at the outlet.

[0037] Furthermore, such as Figure 1As shown in Figure 2, in the large flow valve stem of this utility model, an annular groove 33 is provided on the fourth guide section 32, and the annular groove 33 is used to place the sealing ring 4.

[0038] As described above, the annular groove 33 provides a good installation position for the sealing ring 4, ensuring that the sealing ring 4 can fit tightly between the second guide part 3 and the active valve 6 when necessary, thereby improving the sealing performance of the fluid connector and preventing fluid leakage.

[0039] Correspondingly, such as Figure 3 as well as Figure 5 As shown, another object of the present invention is to provide a fluid connector, which includes a housing 5, a movable valve 6 and a high-flow valve stem 1 as described above. The housing 5 is provided with a movable cavity 54, the high-flow valve stem 1 is disposed in the movable cavity 54, and the movable valve 6 is movably disposed in the movable cavity 54 to fit with the second flow guide 3 to form a sealing fit structure, or to separate from the second flow guide 3 to form a flow gap.

[0040] In practical applications, the fluid connector has both a disconnected state and a connected state. When the fluid connector is in the disconnected state, i.e., the male end structure (not shown) is not inserted and mated with it, the movable valve 6 fits against the second guide portion 3 in the movable cavity 54 to form a sealing fit structure, specifically: as shown... Figure 5 As shown, at least a portion of the inner surface of the movable valve 6 is in close contact with the outer surface of the second flow guide 3, and at least a portion of the outer surface of the movable valve 6 is in close contact with the inner wall of the movable cavity 54 (which is provided with a sealing ring). When the fluid connector is in the connected state, that is, when the male end structure is inserted and mated with it, the movable valve 6 separates from the second flow guide 3 in the movable cavity 54 to form a flow gap. Specifically, the movable valve 6 is pushed by the male end structure, causing it to move relative to the second flow guide 3, thereby opening the flow channel to form a flow gap between the movable valve 6 and the second flow guide 3.

[0041] As can be seen from the above description, by applying the high-flow-rate valve stem 1 to the fluid connector and cooperating with the movable valve 6 to form an openable and closable sealing structure, the connector can be quickly switched between connected and disconnected states.

[0042] Furthermore, in the fluid connector described in this utility model, the movable valve 6 is provided with a stepped portion 61, and the fluid connector also includes an elastic element (not shown), one end of which abuts against the inner wall of the housing 5, and the other end of which abuts against the stepped portion 61.

[0043] As can be seen from the above description, by providing a corresponding stepped portion 61 on the movable valve 6 to cooperate with an elastic element (such as a spring), the movable valve 6 can be quickly reset when the male and female connectors are disconnected, preventing fluid leakage and thus improving the sealing performance and operational reliability of the fluid connector.

[0044] Furthermore, such as Figure 8 As shown, in the fluid connector of this utility model, the movable valve 6 is further provided with two milled planes 62, which are symmetrically arranged on the outer side of the movable valve 6, and a pressure relief flow channel is formed between the milled planes 62 and the inner wall of the movable cavity 54.

[0045] As can be seen from the above description, the design of the two milled planes 62 can optimize the pressure relief performance between the movable valve 6 and the housing 5, avoid the problem of the movable valve 6 getting stuck due to pressure accumulation, and at the same time improve the structural strength and stability of the movable valve 6.

[0046] Please refer to Figure 1 as well as Figure 2 The first embodiment of this utility model is as follows: a large flow valve stem 1, which includes a stem body 11. One end of the stem body 11 is provided with a first flow guide 2. The first flow guide 2 is provided with three circumferentially evenly distributed arc-shaped flow guide grooves 21. The included angle between adjacent arc-shaped flow guide grooves 21 is 120°. The end of the first flow guide 2 near the stem body 11 has a conical structure. The other end of the stem body 11 is provided with a second flow guide 3. The end of the second flow guide 3 near the stem body 11 has a conical structure.

[0047] In this embodiment, as Figure 2 As shown, the first guide section 2 includes a first guide segment 22 and a second guide segment 23. The diameter of the first guide segment 22 is larger than the diameter of the rod 11. One end of the second guide segment 23 is connected to the first guide segment 22, and the other end of the second guide segment 23 is connected to the rod 11. The cross-sectional area of ​​the second guide segment 23 gradually decreases along its axial direction toward the rod 11 to form a conical structure. Three support portions 24 are also provided on the first guide segment 22. The three support portions 24 are evenly distributed along the circumference of the first guide segment 22, and each support portion 24 extends from the middle position of two adjacent arc-shaped guide grooves 21.

[0048] In this embodiment, as Figure 2 As shown, the second guide section 3 includes a third guide section 31 and a fourth guide section 32. One end of the third guide section 31 is connected to the rod body 11, and the other end is connected to the fourth guide section 32. The cross-sectional area of ​​the third guide section 31 gradually increases along its axial direction toward the fourth guide section 32 to form a conical structure. The outer diameter of the fourth guide section 32 is larger than the outer diameter of the rod body 11. In addition, an annular groove 33 is formed on the fourth guide section 32 for placing the sealing ring 4.

[0049] Please refer to Figure 3 Embodiment two of this utility model is: a fluid connector, which includes a housing 5, a movable valve 6, and a high-flow valve stem 1 as described above, such as... Figure 5 As shown, the housing 5 has a movable cavity 54, in which the high-flow valve stem 1 is disposed, and the movable valve 6 is movably disposed within the movable cavity 54. In practical applications, the fluid connector has both a disconnected state and a connected state. When the fluid connector is in the disconnected state, the movable valve 6 is fitted with the second guide portion 3 within the movable cavity 54 to form a sealing fit structure. Specifically, at least a portion of the inner surface of the movable valve 6 is fitted with the outer surface of the second guide portion 3, and at least a portion of the outer surface of the movable valve 6 is fitted with the inner wall of the movable cavity 54. When the fluid connector is in the connected state, the movable valve 6 is separated from the second guide portion 3 within the movable cavity 54 to form a flow gap. Specifically, the movable valve 6 and the second guide portion 3 move relative to each other to form a flow gap between the movable valve 6 and the second guide portion 3.

[0050] In this embodiment, as Figure 5 , Figure 6 as well as Figure 7 As shown, the housing 5 includes a main housing 51, an outer housing 52, and a tailpipe 53. The outer housing 52 is at least partially nested on the main housing 51, and the tailpipe 53 is at least partially nested on the tailpipe 53. The tailpipe 53 is partially nested on the main housing 51 and extends outward. The main housing 51 has a first cavity, and the tailpipe 53 has a second cavity. The first cavity and the second cavity together form a movable cavity 54. One end of the high-flow valve stem 1 abuts against the inner wall of the tailpipe 53, and the other end extends into the first cavity.

[0051] In this embodiment, as Figure 8 As shown, the movable valve 6 has a stepped portion 61. Correspondingly, the fluid connector also includes an elastic element. One end of the elastic element abuts against the inner wall of the tail pipe 53, and the other end of the elastic element abuts against the stepped portion 61. In addition, the movable valve 6 also has two milled surfaces 62, which are symmetrically arranged on the outer surface of the movable valve 6. The milled surfaces 62 and the inner wall of the movable cavity 54 form a pressure relief flow channel.

[0052] In practical applications, simulations can be performed based on the aforementioned fluid connector to verify its effectiveness. Assuming an inlet pressure of 11661.4 Pa, an outlet pressure of 5252.26 Pa, and a pressure difference of 6.409 kPa across the fluid connector, the Cv value can be calculated to be approximately 3.1 using the formula Q = Cv × (ΔP / ρ)^0.5. According to the OCP requirement, the Cv value is 1.9 (i.e., the standard requirement). The fluid connector described in this invention improves the Cv value by 60%, better meeting the server's flow requirements and providing better heat dissipation. It should be noted that Q represents the flow rate; the rated flow rate of UQD06 according to OCP requirements is 11.36 L / min; ρ represents the water density; and ΔP represents the pressure difference.

[0053] In summary, the high-flow-rate valve stem 1 and fluid connector provided by this utility model have the following advantages: The fluid connector of this utility model has a large flow coefficient, which allows for rapid heat dissipation from the equipment, resulting in good heat dissipation efficiency and meeting the heat dissipation requirements of high-power server chips. The fluid connector includes a high-flow-rate valve stem 1, on which three arc-shaped guide grooves 21 are formed on the mounting surface. Adjacent arc-shaped guide grooves 21 are evenly distributed at 120° intervals, effectively ensuring balanced force on the water flow, preventing deviation or vibration, and increasing the flow area. Furthermore, the valve stem has tapered ends, reducing the cross-sectional area ratio of the valve stem, increasing the flow area, avoiding turbulence, and reducing pressure drop.

[0054] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A high-flow-rate valve stem, characterized in that, The device includes a rod body, one end of which is provided with a first flow guide portion, on which multiple arc-shaped flow guide grooves are formed, and the end of the first flow guide portion near the rod body is tapered. The other end of the rod body is provided with a second flow guide portion, the end of the second flow guide portion near the rod body is tapered.

2. The high-flow-rate valve stem according to claim 1, characterized in that, The first guide section includes a first guide segment and a second guide segment. One end of the second guide segment is connected to the first guide segment, and the other end of the second guide segment is connected to the rod body. The cross-sectional area of ​​the second guide segment gradually decreases along its axial direction toward the rod body to form a conical structure.

3. The high-flow-rate valve stem according to claim 2, characterized in that, It also includes multiple support parts, which are disposed on the first guide section and are evenly distributed along the circumference of the first guide section.

4. The high-flow-rate valve stem according to claim 3, characterized in that, The number of the support parts is the same as the number of the arc-shaped guide grooves, and the support parts extend from the middle position of two adjacent arc-shaped guide grooves.

5. The high-flow-rate valve stem according to claim 1, characterized in that, The second guide section includes a third guide section and a fourth guide section. One end of the third guide section is connected to the rod body, and the other end is connected to the fourth guide section. The cross-sectional area of ​​the third guide section gradually increases along its axial direction toward the fourth guide section to form a conical structure.

6. The high-flow-rate valve stem according to claim 5, characterized in that, The fourth guide section has an annular groove for placing a sealing ring.

7. The high-flow-rate valve stem according to claim 1, characterized in that, The plurality of the arc-shaped guide grooves are evenly distributed along the circumference of the first guide section.

8. A fluid connector, characterized in that, The device includes a housing, a movable valve, and a high-flow valve stem as described in any one of claims 1 to 7. The housing has a movable cavity, the high-flow valve stem is disposed in the movable cavity, and the movable valve is movably disposed in the movable cavity to fit against the second flow guide to form a sealing fit structure, or to separate from the second flow guide to form a flow gap.

9. The fluid connector according to claim 8, characterized in that, The movable valve has a stepped portion, and the fluid connector also includes an elastic element, one end of which abuts against the inner wall of the housing, and the other end of which abuts against the stepped portion.

10. The fluid connector according to claim 8, characterized in that, The movable valve is also provided with two milling planes, which are symmetrically arranged on the outer side of the movable valve.

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