Connecting device capable of realizing exhaust and pressure reduction

Abstract

The invention belongs to the technical field of liquid cooling, and particularly relates to a connecting device capable of exhausting and depressurizing, which comprises a shell, a swing arm and a spring, and the upper and lower ends of the shell are respectively provided with an exhaust port and a connecting port; and a buoy capable of moving up and down is arranged in the shell. One end of the swing arm is hinged to the buoy, and the other end of the swing arm is always in contact with the exhaust port through elasticity of the spring. The spring is adopted to replace a traditional spring-free exhaust structure hinged to the right end, the situations that sealing is not tight and precision is reduced due to long-term abrasion are avoided, reliability and precision are high, and manufacturing and machining cost is low.

Description

Technical Field

[0001] The present invention belongs to the technical field of liquid cooling, and particularly relates to a connection device capable of realizing exhaust and pressure reduction. Background Art

[0002] At present, with the increase in the temperature of the cooling medium and the generation of bubbles in the liquid cooling pipeline system, the gas occupies part of the space in the pipeline. After heating, bubbles will be generated, resulting in an increase in the pressure in the pipeline and hindering the flow of the cooling medium. Since the specific heat capacity of the gas is smaller than that of the liquid, it directly affects the cooling effect. Therefore, it is necessary to timely discharge the bubbles in the pipeline to reduce the internal pressure of the pipeline system and improve the cooling efficiency. The use of an automatic exhaust connector can well solve the above problems.

[0003] The invention patent with the publication number CN2622498Y discloses an automatic exhaust valve, which includes a valve body, a base, and a floating ball. The valve body is a hollow cylinder with an open lower end and a sealed upper end. One inner wall of the valve body is a slope wall, and a guiding inclined groove is provided on the slope wall. A through ventilation hole is provided between the slope wall and the valve body wall. A convex rib is provided between the slope wall and the inner top wall of the valve body. A strip-shaped exhaust port is provided in the middle of the convex rib, and the strip-shaped exhaust port communicates with the through ventilation hole. The floating ball is an eccentric hollow columnar body accommodated in the inner cavity of the valve body and provided with an air passage. One side of the hollow columnar body is a rectangular block. The top of the side of the floating ball in contact with the convex rib of the valve body is an inclined surface, and an air flow adjustment groove and a sealing strip accommodation groove are provided on the inclined surface. The base is a support seat that is hermetically connected to the lower port of the valve body, and a through hole is provided at the lower end of the base. This exhaust valve has the advantages of simple structure, small volume, large exhaust hole, flexible exhaust, self-cleaning, gradually opening and closing, convenient maintenance, and long service life.

[0004] However, for liquid cooling pipelines, the bubbles are small and the pressure is high, and the accuracy requirements for the exhaust structure are relatively high. Especially, the opening and closing at the exhaust port require very high precision, and the existing technologies cannot meet the operation requirements. Summary of the Invention

[0005] In view of the above deficiencies in the prior art, the present invention provides a connection device capable of realizing exhaust and pressure reduction to solve the problem of low accuracy of the existing exhaust structure.

[0006] To solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A connection device capable of realizing exhaust and pressure reduction includes a housing. An exhaust port and a connection port are respectively provided at the upper and lower ends of the housing. A floating buoy capable of moving up and down is provided inside the housing.

[0008] It further includes a swing arm. One end of the swing arm is hinged to the top of the floating buoy, and the other end contacts the exhaust port and closes or opens the exhaust port.

[0009] A spring is provided below the exhaust port. The lower end of the spring is fixed inside the housing through a spring seat, and the upper end is connected to the swing arm.

[0010] Furthermore, a gasket is provided on the swing arm, and the swing arm contacts the exhaust port through the gasket. By setting the gasket, it can not only improve the sealing effect when the exhaust port is closed, but also increase the buoy travel interval when the exhaust port is closed, improving the reliability of the closure during bubble-free operation. It can also ensure that the swing arm and the exhaust port maintain stable contact, avoiding contact sliding caused by external shaking, left and right movement due to the gap between the buoy and the inside of the housing, etc.

[0011] Furthermore, a sealing layer made of an elastic material is provided at one end of the swing arm in contact with the exhaust port. In addition to achieving the reliability of the closure through the gasket, by arranging the elastic material on the swing arm in the form of attachment, inlay, wrapping, etc., it can also improve the reliability of the closure.

[0012] Furthermore, a convex nozzle extends from the lower end of the exhaust port, and the convex nozzle contacts the swing arm. The convex nozzle can ensure that the swing arm or the gasket on the swing arm is not interfered with by the movement between the free end of the swing arm and the housing. It enables the swing arm or the gasket to always contact the exhaust hole, further improving the exhaust accuracy, quickly closing, and preventing coolant leakage caused by delayed closure.

[0013] Furthermore, the lower end of the convex nozzle is arc-shaped. The arc-shaped design can increase the contact area between the convex nozzle and the swing arm or the gasket, reduce wear, and extend the service life; it can also make the closure / opening smoother, thereby improving the exhaust accuracy.

[0014] Furthermore, the inside of the exhaust port is provided in a tapered shape with a larger upper part and a smaller lower part. The smaller the exhaust port, the higher the exhaust accuracy, but the easier it is to be blocked. And precisely the tapered design with a larger upper part and a smaller lower part can not only ensure the exhaust accuracy but also is not easily blocked.

[0015] Furthermore, an exhaust cap is detachably sleeved outside the exhaust port. It can prevent external dust from blocking the exhaust hole and reduce the external pollution to the coolant.

[0016] In the present invention, one end is hinged to the buoy, and the other end always contacts the exhaust port by the elastic force of the spring. When there are more bubbles, the buoy drives the left end of the swing arm to move downward, causing the swing arm to tilt and the exhaust hole to open for exhaust. After the exhaust is completed, the buoy drives the left end of the swing arm to move upward, causing the swing arm to be horizontal and the exhaust hole to close. When the inner diameter of the exhaust hole is already the minimum value that can be designed under various factors, the exhaust hole is slowly opened in an inclined manner, which is equivalent to further reducing the cross-sectional area of gas flow to achieve high-precision exhaust. Using a spring to replace the traditional springless exhaust structure with a hinge at the right end, this solution will not cause problems such as loose closure and reduced accuracy due to long-term wear, and has high reliability and accuracy, as well as low manufacturing and processing costs. Description of the Drawings

[0017] Figure 1 Cross-sectional view of a connection device capable of exhausting air and reducing pressure according to the present invention in an embodiment (closed state);

[0018] Figure 2 Cross-sectional view of a connection device capable of exhausting air and reducing pressure according to the present invention in an embodiment (open state);

[0019] Figure 3 For Figure 2 Partial enlarged schematic view of part A in

[0020] Figure 4 Exploded perspective view of a connection device capable of exhausting air and reducing pressure according to the present invention in an embodiment. Detailed implementation manners

[0021] In order to enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] It should be noted that the same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if terms such as "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the drawings are only for illustrative purposes and cannot be construed as limitations on this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0023] In the description of the present invention, unless otherwise clearly defined and limited, if terms such as "connection" are used to indicate the connection relationship between components, this term should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0024] Embodiment 1

[0025] A connection device capable of exhausting air and reducing pressure, as Figures 1-4As shown in the figure, it includes a housing 1, and the housing 1 is formed by separately processing the upper and lower housings and then assembling them. Exhaust ports 2 and connection ports 3 are respectively provided at the upper and lower ends of the housing 1, and this device is installed in the liquid cooling pipeline through the connection port 3 and is in communication with it.

[0026] Inside the housing, there is a buoy 5 that can move up and down. The outer diameter of the buoy 5 is as close as possible to the inner diameter of the housing 1 to reduce the gap between the two, which can reduce the radial movement between the swing arm 4 and the exhaust port 2.

[0027] One end of the swing arm 4 is hinged to the top of the buoy 5, and the hinged method is a detachable hinge to facilitate installation and assembly. The other end of the swing arm 4 contacts the exhaust port 2. When the swing arm 4 swings to be horizontal or inclined, it realizes the closing or opening effect on the exhaust port 2.

[0028] A spring 6 is arranged below the exhaust port 2. The lower end of the spring 6 is fixed inside the housing 1 through a spring seat 61, and the upper end is stuck in the spring groove and connected to the swing arm 4. The spring 6 can use the spring force to keep the swing arm 4 in contact with the exhaust port all the time.

[0029] The working principle is as follows:

[0030] The bubbles in the liquid cooling pipeline enter the inside of the housing 1 from the connection port 3 and gather above. As the gas above increases and the liquid level drops, the buoy drives the left end of the swing arm to move downward, causing the swing arm to tilt and the exhaust hole to open for exhaust. After the exhaust is completed, the gas decreases, the liquid level rises, the buoy drives the left end of the swing arm to move upward, causing the swing arm to be horizontal and the exhaust hole to close. One exhaust cycle is completed, realizing automatic and high-precision exhaust.

[0031] Embodiment 2

[0032] A connection device that can achieve exhaust pressure reduction, as Figures 1-4 shown, includes a housing 1, and the housing 1 is formed by separately processing the upper and lower housings and then assembling them. Exhaust ports 2 and connection ports 3 are respectively provided at the upper and lower ends of the housing 1, and this device is installed in the liquid cooling pipeline through the connection port 3 and is in communication with it.

[0033] Inside the housing, there is a buoy 5 that can move up and down. The outer diameter of the buoy 5 is as close as possible to the inner diameter of the housing 1 to reduce the gap between the two, which can reduce the radial movement between the swing arm 4 and the exhaust port 2.

[0034] One end of the swing arm 4 is hinged to the top of the buoy 5, and the hinged method is a detachable hinge to facilitate installation and assembly. The other end of the swing arm 4 contacts the exhaust port 2. When the swing arm 4 swings to be horizontal or inclined, it realizes the closing or opening effect on the exhaust port 2.

[0035] The spring 6 is arranged below the exhaust port 2. The lower end of the spring 6 is fixed inside the housing 1 through a spring seat 61, and the upper end is stuck in a spring groove and connected to the swing arm 4. The spring 6 can use the spring elasticity to keep the swing arm 4 in contact with the exhaust port all the time.

[0036] A gasket 41 is provided on the swing arm 4, and the swing arm 4 contacts the exhaust port 2 through the gasket 41. A convex nozzle 21 extends from the lower end of the exhaust port 2, and the lower end of the convex nozzle 21 is arc-shaped. The convex nozzle 21 contacts the swing arm 4. The inside of the exhaust port 2 is arranged in a conical shape with a larger upper part and a smaller lower part.

[0037] As an improvement of the first embodiment, as Figure 3 shown, the gasket 41 is added, which can not only improve the sealing effect when the exhaust port 2 is closed, but also increase the buoy travel interval when the exhaust port 2 is closed, improving the reliability of the closure during bubble-free operation. It can also ensure that the swing arm 4 remains in stable contact with the exhaust port 2, avoiding contact sliding caused by external shaking, left and right movement due to the gap between the buoy 5 and the inside of the housing 1, etc.

[0038] The shape and structure of the exhaust port 2 are also improved. The convex nozzle can ensure that the swing arm or the gasket on the swing arm is not interfered with by the housing during the movement of the free end of the swing arm. The swing arm or the gasket can always be in contact with the exhaust hole, further improving the exhaust accuracy, quickly closing, and preventing coolant leakage caused by closing delay. The arc design can increase the contact area between the convex nozzle and the swing arm or the gasket, reduce wear, and extend the service life; it can also make the closing / opening smoother, thereby improving the exhaust accuracy. The smaller the exhaust port, the higher the exhaust accuracy, but the easier it is to be blocked. And precisely the conical design with a larger upper part and a smaller lower part can ensure the exhaust accuracy and is not easy to be blocked.

[0039] Embodiment Three

[0040] A connection device capable of realizing exhaust pressure reduction, as Figures 1-4 shown, includes a housing 1, and the housing 1 is formed by separately processing the upper and lower housings and then assembling them. An exhaust port 2 and a connection port 3 are respectively provided at the upper and lower ends of the housing 1, and the device is installed in the liquid cooling pipeline through the connection port 3 and is in communication with it.

[0041] A buoy 5 capable of moving up and down is arranged inside the housing. The outer diameter of the buoy 5 is as close as possible to the inner diameter of the housing 1 to reduce the gap between the two, which can reduce the radial movement between the swing arm 4 and the exhaust port 2.

[0042] One end of the swing arm 4 is hinged to the top of the buoy 5, and the hinged method is a detachable hinge to facilitate installation and assembly. The other end of the swing arm 4 contacts the exhaust port 2. When the swing arm 4 swings to be horizontal or inclined, it realizes the closing or opening effect on the exhaust port 2.

[0043] The spring 6 is arranged below the exhaust port 2. The lower end of the spring 6 is fixed inside the housing 1 through a spring seat 61, and the upper end is stuck in a spring groove and connected to the swing arm 4. The spring 6 can use the spring elasticity to keep the swing arm 4 in contact with the exhaust port all the time.

[0044] A sealing layer made of an elastic material is provided at one end of the swing arm 4 in contact with the exhaust port 2. The elastic material is rubber, which is arranged on the swing arm in ways such as attachment, inlay, and wrapping, and can also improve the reliability of sealing.

[0045] An exhaust cap 22 is detachably sleeved outside the exhaust port 2. A pressure relief hole is opened on the side of the exhaust cap 22, and gas is discharged to the outside through the pressure relief hole and the assembly gap between the exhaust port 2 and the exhaust cap 22.

[0046] As another improvement of the first embodiment, this embodiment adds a sealing layer to improve the sealing reliability. It also adds an exhaust cap 22 that can prevent external dust from blocking the exhaust hole and reduce the pollution of the coolant by the outside world.

[0047] The above are only embodiments of the present invention. Specific structures and common knowledge such as characteristics well known in the art are not described in detail here. Those of ordinary skill in the art know all the common technical knowledge in the technical field to which the invention belongs before the application date or the priority date, and can

[0048] acquire all the existing technologies in this field and have the ability to apply the conventional experimental means before this date. Those of ordinary skill in the art can, under the inspiration given by this application and combined with their own abilities, improve and implement this solution. Some typical well-known structures or well-known methods should not be an obstacle to those of ordinary skill in the art to implement this application. It should be noted that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent.

Claims

1. A connection device capable of achieving exhaust and pressure reduction, comprising a housing (1), wherein the housing (1) is provided with an exhaust port (2) and a connection port (3) at the upper and lower ends thereof respectively; a buoy (5) capable of moving up and down is provided inside the housing, wherein: It also includes a swing arm (4), one end of which is hinged to the top of the buoy (5), and the other end of which is in contact with the exhaust port (2) and closes or opens the exhaust port (2); A spring (6), wherein the spring (6) is arranged below the exhaust port (2), the lower end of the spring (6) is fixed inside the housing (1) via a spring seat (61), and the upper end of the spring (6) is connected to the swing arm (4).

2. A connection device capable of achieving exhaust pressure reduction according to claim 1, characterized in that: A sealing gasket (41) is provided on the swing arm (4), and the swing arm (4) is in contact with the exhaust port (2) via the sealing gasket (41).

3. A connection device capable of achieving exhaust pressure reduction according to claim 1, characterized in that: The end of the swing arm (4) in contact with the exhaust port (2) is provided with a sealing layer made of elastic material.

4. A connection device capable of achieving exhaust pressure reduction according to claim 1, characterized in that: A protruding nozzle (21) extends from the lower end of the exhaust port (2), and the protruding nozzle (21) is in contact with the swing arm (4).

5. A connection device capable of achieving exhaust pressure reduction according to claim 4, characterized in that: The lower end of the protruding mouth (21) is arc-shaped.

6. A connection device capable of achieving exhaust pressure reduction according to claim 1, characterized in that: The interior of the exhaust port (2) is arranged in a conical shape that is larger at the top and smaller at the bottom.

7. A connection device capable of achieving exhaust pressure reduction according to any one of claims 1 to 6, characterized in that: The exhaust port (2) is detachably covered with an exhaust cap (22) on the outside.

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