Solenoid valve and air conditioning system having same

Abstract

A solenoid valve (100) and an air conditioning system (200) having the same. This solenoid valve (100) includes a valve sleeve (10) and a valve body (20). The valve sleeve (10) is inserted into the valve body (20) and fixedly connected to the valve body (20). The spherical sealing member (30) moves along the axial direction of the valve sleeve (10) within the valve chamber (11) to open and close the valve port (21). A first connecting pipe (40) communicating with the valve chamber (11) is fixedly connected to the side of the valve body (20). A second connecting pipe (50) communicating with the valve port (21) is fixedly connected to the valve body (20) along the axial direction. The central axis of the first connecting pipe (40) is either flush with one end of the valve port (21) facing the spherical sealing member (30) or is arranged away from the second connecting pipe (50) with respect to the one end of the valve port (21) facing the spherical sealing member (30).

Description

[Technical Field]

[0001] Related Applications This application claims priority to a Chinese patent application filed on September 29, 2021, bearing application number 202122391299.6 and entitled "Solenoid valve and air conditioning system having the same," the entire contents of which are incorporated herein by reference.

[0002] The present application relates to the technical field of refrigeration, and in particular to a solenoid valve and an air conditioning system having the same. [Background technology]

[0003] A solenoid valve is an electromagnetically controlled component used in industrial control systems to control the conduction and interruption of media, and to adjust parameters such as the flow direction and flow rate of the media, thereby achieving the desired control.

[0004] In the solenoid valves of the related art, when the temperature and pressure are low, the viscosity of the refrigerant becomes too high, which significantly increases the resistance of the core metal inside the solenoid valve during operation, making it difficult for the refrigerant to pass through the valve port, increasing the valve opening time and affecting the working efficiency of the solenoid valve. Summary of the Invention

[0005] According to various embodiments of the present application, a solenoid valve and an air conditioning system having the same are provided.

[0006] The present application provides an electromagnetic valve comprising a valve sleeve and a valve body, the valve sleeve being inserted into the valve body and fixedly connected thereto, the interiors of the valve sleeve and the valve body together surrounding a valve chamber, a spherical sealing member being provided within the valve chamber, a valve port being provided within the valve body, the spherical sealing member moving within the valve chamber along the axial direction of the valve sleeve to open and close the valve port, a first connecting pipe communicating with the valve chamber being fixedly connected to the side of the valve body, and a second connecting pipe communicating with the valve port being fixedly connected to the valve body along the axial direction, the central axis of the first connecting pipe being either flush with one end of the valve port facing the spherical sealing member or spaced apart from the second connecting pipe relative to the one end of the valve port facing the spherical sealing member.

[0007] In one embodiment, when the height from the central axis of the first connecting pipe to the valve port is H, H satisfies the relational expression 0 mm≦H≦5 mm.

[0008] In one embodiment, when the diameter of the valve orifice is D, D satisfies the relational expression 1 mm≦D≦2.5 mm.

[0009] In one embodiment, the material of the spherical sealing member is different from the material of the valve disc.

[0010] In one embodiment, the spherical sealing members are steel balls.

[0011] In one embodiment, a suction member and a valve stem member are further provided within the valve chamber, the suction member being fixed to one end of the valve sleeve remote from the valve opening, and the valve stem member being provided at one end of the valve sleeve close to the valve opening and movable toward the suction member under the action of suction force of the suction member, the valve stem member being connected to the spherical sealing member and sliding within the valve chamber to move the spherical sealing member and open and close the valve opening.

[0012] In one embodiment, the valve stem member includes a core and a return spring, one end of the return spring abutting against the suction member and the other end of the return spring being located within the core, and the core can move in a direction toward / away from the suction member and move the spherical sealing member.

[0013] In one embodiment, a magnetizing ring is fixedly installed at one end of the attraction member close to the core, and the core can move in a direction approaching the attraction member and come into contact with the magnetizing ring.

[0014] In one embodiment, the valve sleeve is a stainless steel sleeve, and the first and second connecting pipes are both copper pipes.

[0015] The present application further provides an air conditioning system including a solenoid valve as described above.

[0016] The details of one or more embodiments of the application are set forth in the drawings and description below. Other features, objects, and advantages of the application will become apparent from the description, drawings, and claims. [Brief explanation of the drawings]

[0017] To better describe and explain the embodiments and / or examples of the inventions disclosed herein, reference may be made to one or more drawings. Any additional details or examples used to illustrate the drawings should not be considered as limiting the scope of any of the disclosed inventions, the embodiments and / or examples described herein, and the best mode of these inventions as understood herein.

[0018] [Figure 1] FIG. 1 is a schematic diagram of a solenoid valve according to one or more embodiments. [Figure 2] FIG. 2 is a partially enlarged schematic diagram of A in FIG. [Figure 3] FIG. 1 is a schematic diagram of an air conditioning system according to one or more embodiments.

[0019] The meanings of the symbols in the drawings are as follows: 100 solenoid valve, 10 valve sleeve, 11 valve chamber, 20 valve body, 21 valve port, 22 mounting hole, 30 spherical sealing member, 40 first connecting pipe, 50 second connecting pipe, 60 suction member, 61 magnetization ring, 70 valve stem member, 71 core metal, 711 inner hole, 72 return spring, 200 air conditioning system. DETAILED DESCRIPTION OF THE INVENTION

[0020] In order to make the objectives, technical aspects and advantages of the present application clearer, the present application will be described in more detail below with reference to the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only for interpreting the present application and do not limit the protection scope of the present application.

[0021] It should be understood that when an assembly is referred to as being "attached" to another assembly, it may be directly attached to the other assembly, or there may be an intervening assembly. When an assembly is referred to as being "mounted" to another assembly, it may be directly mounted to the other assembly, or there may also be an intervening assembly. When an assembly is referred to as being "secured" to another assembly, it may be directly secured to the other assembly, or there may also be an intervening assembly. The terms "vertical," "horizontal," "left," "right," and similar terms used herein are for descriptive purposes only and do not represent the only embodiments.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. Herein, the terms used in the specification of this application are merely for the purpose of describing specific embodiments and are not intended to limit the scope of this application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0023] 1 and 2, the solenoid valve 100 is an electromagnetically controlled industrial device, a basic automated component for controlling fluids, and belongs to the category of actuators, including but not limited to hydraulic and pneumatic types. The solenoid valve 100 is used in industrial control systems to adjust the direction, flow rate, speed, and other parameters of media. The solenoid valve 100 can be combined with different circuits to achieve the desired control, ensuring both precision and flexibility of control.

[0024] In the solenoid valve of the related art, when the temperature is low and the pressure is high, the viscosity of the refrigerant becomes too high, making it difficult for the refrigerant to pass through the valve port, increasing the valve opening time and affecting the working efficiency of the solenoid valve.

[0025] In order to solve the problems existing in solenoid valves in the related art, the present application provides a solenoid valve 100, which includes a valve sleeve 10 and a valve body 20, the valve sleeve 10 being fixedly connected to the valve body 20, and the valve sleeve 10 being able to be inserted into the valve body 20 or fitted onto the outside of the valve body 20. The interiors of the valve sleeve 10 and the valve body 20 together surround a valve chamber 11, a spherical sealing member 30 is provided in the valve chamber 11, a valve port 21 is provided in the valve body 20, and the spherical sealing member 30 moves along the axial direction of the valve sleeve 10 within the valve chamber 11 to open and close the valve port 21. A first connecting pipe 40 communicating with the valve chamber 11 is fixedly connected to the side of the valve body 20, and a second connecting pipe 50 communicating with the valve port 21 is fixedly connected to the valve body 20 along the axial direction.

[0026] In some embodiments, the central axis of the first connecting pipe 40 is flush or essentially flush with the end of the valve port 21 facing the spherical sealing member 30. Specifically, the central axis of the first connecting pipe 40 may be flush with the end of the valve port 21 facing the spherical sealing member 30, or may be spaced a predetermined distance from the end of the valve port 21 facing the spherical sealing member 30. This allows the refrigerant to flow through the valve port 21 more easily, particularly a refrigerant with high viscosity under low temperature and pressure conditions, which improves the opening speed of the valve port 21 and the operating efficiency of the solenoid valve 100.

[0027] In some embodiments, the height of the central axis of the first connecting pipe 40 in a direction perpendicular to the central axis of the first connecting pipe 40 is equal to or greater than the height of the end of the valve port 21 facing the spherical sealing member 30. Specifically, the central axis of the first connecting pipe 40 may be flush with the end of the valve port 21 facing the spherical sealing member 30, or may be spaced apart from the second connecting pipe 50 relative to the end of the valve port 21 facing the spherical sealing member 30. That is, as shown in FIG. 1 , the height of the central axis of the first connecting pipe 40 is equal to or greater than the height H of the upper end surface of the valve port 21. It goes without saying that these are merely illustrative descriptions and should not be construed as limiting the present application.

[0028] It should be noted that in the present application, the central axis of the first connecting pipe 40 is flush with the end of the valve port 21 facing the spherical sealing member 30, or is spaced apart from the second connecting pipe 50 relative to the end of the valve port 21 facing the spherical sealing member 30, so that the refrigerant can flow out through the valve port 21 more easily, and in particular, the refrigerant with high viscosity under low temperature and pressure conditions can flow out of the valve port 21 more easily, thereby improving the opening speed of the valve port 21 and the operating efficiency of the solenoid valve 100.

[0029] Alternatively, if the height from the central axis of the first connecting pipe 40 to the valve port 21 is H, H satisfies the relational expression 0 mm≦H≦5 mm.

[0030] It should be noted that if the position of the valve port 21 is made lower, the height H from the central axis of the first connecting pipe 40 to the valve port 21 will increase, which will inevitably require the lengths of other components within the valve sleeve 10 to be longer. If the height H from the central axis of the first connecting pipe 40 to the valve port 21 is too high, the material cost of the solenoid valve 100 will be high. Therefore, by setting the height from the central axis of the first connecting pipe 40 to the valve port 21 to 0 mm≦H≦5 mm, it is possible to avoid the material cost of the solenoid valve 100 being high due to the height H from the central axis of the first connecting pipe 40 to the valve port 21 being too high.

[0031] As shown in FIG. 1, in one embodiment, a mounting hole 22 for mounting the valve sleeve 10 is drilled in the direction of the valve body 20 facing the valve sleeve 10, and one end of the valve sleeve 10 is inserted into the mounting hole 22 and welded to the valve body 20.

[0032] In this embodiment, the valve sleeve 10 has a substantially cylindrical structure, and the valve body 20 has a substantially stepped columnar structure. The valve sleeve 10 is not limited to a cylindrical structure, and the valve body 20 is not limited to a stepped columnar structure. In another embodiment, the valve sleeve 10 and the valve body 20 may have a prismatic structure, and are not limited here.

[0033] Furthermore, a suction member 60 and a valve stem member 70 are further provided within the valve sleeve 10. The suction member 60 is fixed to one end of the valve sleeve 10 remote from the valve orifice 21, and the valve stem member 70 is provided at one end of the valve sleeve 10 close to the valve orifice 21, and can move toward the suction member 60 due to the suction force of the suction member 60.

[0034] Specifically, the valve stem member 70 includes a core 71 and a return spring 72. An inner hole 711 is drilled through the center of the core 71, and the inner hole 711 is a stepped hole. The return spring 72 is disposed within the inner hole 711, with one end of the return spring 72 abutting against the suction member 60 and the other end housed within the inner hole 711 of the core 71. The spherical sealing member 30 is fixedly connected to one end of the core 71 remote from the suction member 60. The core 71 moves toward or away from the suction member 60 under the action of the suction member 60, thereby moving the spherical sealing member 30 to abut against or separate from the valve orifice 21, thereby opening or closing the valve orifice 21.

[0035] A coil (not shown) is further fitted to the outer wall of the valve sleeve 10. When the coil is not energized, the elastic action of the return spring 72 presses the core 71 toward one end closer to the valve body 20, causing the spherical sealing member 30 to abut against the valve port 21 to seal. In this case, the valve port 21 is closed, and the refrigerants in the first connecting pipe 40 and the second connecting pipe 50 do not communicate with each other. When the coil is energized, an electromagnetic field generates a magnetic attraction force between the core 71 and the suction member 60, causing the core 71 to overcome the elastic action of the return spring 72 and move toward the suction member 60. The spherical sealing member 30 is separated from the valve port 21. In this case, the valve port 21 is opened, and the refrigerant flowing in from the first connecting pipe 40 flows through the valve port 21 to the second connecting pipe 50.

[0036] Furthermore, a demagnetizing ring 61 is fixedly installed at one end of the attraction member 60 close to the core metal 71. The core metal 71 can move in a direction approaching the attraction member 60 and come into contact with the demagnetizing ring 61.

[0037] It should be noted that during operation of the solenoid valve 100, the core wire 71 continues to be attracted to the suction member 60, moves in a direction approaching the suction member 60, and comes into contact with the suction member 60. Therefore, in this embodiment, in order to reduce the noise generated during the operation of the solenoid valve 100, a demagnetizing ring 61 that can come into contact with the core wire 71 is provided on the suction member 60, thereby achieving the effect of reducing the noise generated during the operation of the solenoid valve 100.

[0038] Furthermore, if the diameter of the valve port 21 is D, D satisfies the relational expression 1 mm≦D≦2.5 mm. If the diameter of the valve port 21 is too large, the sealing performance of the spherical sealing member 30 when sealing the valve port 21 will be reduced, and if the diameter of the valve port 21 is too small, the refrigerant flow rate will not be sufficient. Therefore, the diameter of the valve port 21 must be limited to an optimum range.

[0039] In other embodiments, the diameter of the valve port 21 may be adaptively adjusted according to different circumstances, and no specific limitation is made here.

[0040] Optionally, the material of the spherical sealing member 30 is different from the material of the valve disc 20. During the operation of the solenoid valve 100, the spherical sealing member 30 moves toward and contacts the valve port 21. If the spherical sealing member 30 and the valve disc 20 were made of the same material, wear and tear would occur during the contact between the spherical sealing member 30 and the valve disc 20, affecting the sealing performance when the spherical sealing member 30 contacts the valve port 21. Therefore, in this embodiment, the spherical sealing member 30 and the valve disc 20 are made of different materials, thereby reducing wear between the spherical sealing member 30 and the valve disc 20 when the spherical sealing member 30 contacts the valve disc 20 and improving the sealing performance when the spherical sealing member 30 contacts the valve port 21.

[0041] In this embodiment, the spherical sealing member 30 may be a steel ball, which requires that the valve body 20 be made of a material other than steel. In other embodiments, the spherical sealing member 30 may be made of other materials, such as aluminum, without any limitation herein.

[0042] Alternatively, the valve sleeve 10 is a stainless steel sleeve, and the first connecting pipe 40 and the second connecting pipe 50 are both copper pipes. In another embodiment, the valve sleeve 10, the first connecting pipe 40 and the second connecting pipe 50 may be made of other materials, such as aluminum, without being limited thereto.

[0043] It should be noted that in this embodiment, referring to FIG. 1, the solenoid valve 100 is illustratively installed vertically, the first connecting pipe 40 is the inlet pipe, and the second connecting pipe 50 is the outlet pipe. Taking this as an example, the flow process of the solenoid valve 100 will be briefly described.

[0044] During the operation of the solenoid valve 100, after the valve port 21 is opened, the refrigerant flows from the first connecting pipe 40 into the solenoid valve 100, and most of the refrigerant flows directly and quickly downward into the valve port 21, and then passes through the valve port 21 to flow out to the second connecting pipe 50. In the configuration of FIG. 1, the height of the central axis of the first connecting pipe 40 is set to be equal to or greater than the height H of the upper end surface of the valve port 21, allowing the refrigerant in the first connecting pipe 40 to flow smoothly and quickly into the valve port 21. This reduces the resistance and time required for the highly viscous refrigerant to overcome the height of the valve port 21 under low temperature and low pressure conditions, thereby improving the operation efficiency of the solenoid valve 100.

[0045] Referring to FIG. 3, the present application further provides an air conditioning system 200 including the above solenoid valve 100.

[0046] The technical features of the above embodiments may be combined in any manner. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combinations of these technical features are not contradictory, they should all be considered within the scope of the present specification.

[0047] The above examples merely illustrate some embodiments of the present application, and although the descriptions are relatively specific and detailed, they should not be understood as limiting the scope of the claims of the present application. It should be noted that those skilled in the art may make some modifications and improvements without departing from the spirit of the utility model, and all of these are within the scope of protection of the present application. Therefore, the scope of protection of the patent of the present application should be determined in accordance with the scope of the accompanying claims.

Claims

1. A solenoid valve comprising a valve sleeve and a valve body, the valve sleeve being fixedly connected to the valve body, the interiors of the valve sleeve and the valve body together surrounding a valve chamber, a spherical sealing member being provided within the valve chamber, a valve port being provided within the valve body, the spherical sealing member moving within the valve chamber along an axial direction of the valve sleeve to open and close the valve port, a first connecting pipe communicating with the valve chamber is fixedly connected to a side of the valve body, and a second connecting pipe communicating with the valve port is fixedly connected to the valve body along its axial direction, the central axis of the first connecting pipe not being located on the second connecting pipe side relative to the position of one end of the valve port facing the spherical sealing member in the axial direction of the valve sleeve, and the distance between the central axis of the first connecting pipe and the valve port is set to H, such that H satisfies the relational expression 0 mm≦H≦5 mm; The material of the spherical sealing member is different from the material of the valve body.

2. 2. The solenoid valve according to claim 1, wherein the diameter of the valve port is D, and D satisfies the relational expression 1 mm≦D≦2.5 mm.

3. 2. The solenoid valve of claim 1, wherein said spherical sealing member is a steel ball.

4. a suction member and a valve stem member are further provided within the valve chamber, the suction member being fixed to one end of the valve sleeve remote from the valve orifice, and the valve stem member being provided to one end of the valve sleeve close to the valve orifice and being movable toward the suction member by the action of suction force of the suction member; 2. The solenoid valve according to claim 1, wherein the valve stem member is connected to the spherical sealing member and is slidable within the valve chamber to move the spherical sealing member and open and close the valve port.

5. 5. The solenoid valve according to claim 4, wherein the valve stem member includes a core and a return spring, one end of the return spring abutting against the suction member and the other end of the return spring being located within the core, the core being movable toward / away from the suction member and capable of moving the spherical sealing member.

6. 6. The solenoid valve according to claim 5, wherein a magnetizing ring is fixedly installed at one end of the attraction member close to the core, and the core can move in a direction approaching the attraction member and abut against the magnetizing ring.

7. 2. The solenoid valve according to claim 1, wherein the valve sleeve is a stainless steel sleeve, and the first connecting pipe and the second connecting pipe are both copper pipes.

8. An air conditioning system comprising a solenoid valve according to any one of claims 1 to 7.

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