Solenoid valves, refrigeration equipment and automobiles

Abstract

This utility model discloses an electromagnetic valve, a refrigeration device, and an automobile, relating to the field of electromagnetic valve technology. The electromagnetic valve includes a valve body and a valve core assembly. The valve body defines a valve cavity extending in a first direction, and a valve port is formed within the valve cavity. The side of the valve body is provided with an inlet channel and a first outlet channel communicating with the valve cavity. The valve core assembly is movably installed within the valve cavity along the first direction to control the opening and closing of the inlet channel and the first outlet channel. The first outlet channel is inclined away from the valve core assembly. The valve port has an oppositely positioned end face and bottom wall. The distance between the second intersection formed at the connection between the first outlet channel and the valve cavity and the bottom wall of the valve port is h, where h > 0. The first outlet channel is not directly connected to the bottom wall of the valve cavity, but has a certain distance from it. Furthermore, the first outlet channel forms a certain angle with the radial direction along the valve port, which can reduce fluid turbulence, thereby reducing the flow resistance of the electromagnetic valve and improving its flow capacity.

Description

Technical Field

[0001] This utility model relates to the field of solenoid valve technology, and particularly to solenoid valves, refrigeration equipment, and automobiles. Background Technology

[0002] Solenoid valves are typically installed in the piping of refrigeration systems to control the flow of the medium. Traditional solenoid valves suffer from high flow resistance due to positional limitations at the valve seat inlet and outlet. To reduce flow resistance and achieve the desired cooling capacity, the valve port size or piston stroke is often increased. However, such designs are detrimental to the reliability and cost of the solenoid valve. Utility Model Content

[0003] The main purpose of this invention is to propose a solenoid valve, a refrigeration device, and an automobile, which reduces the internal flow resistance of the solenoid valve and improves its flow capacity by adjusting the liquid flow channel of the solenoid valve.

[0004] To achieve the above objectives, this utility model proposes a solenoid valve, comprising:

[0005] A valve body, which defines a valve cavity extending in a first direction, one end of which is open to form a valve port; the side of the valve body is provided with an inlet channel and a first outlet channel communicating with the valve cavity; and,

[0006] A valve core assembly is movably mounted in the valve cavity along a first direction so as to control the opening and closing of the liquid inlet channel and the first liquid outlet channel during its active stroke;

[0007] Wherein, one end of the first liquid outlet channel is connected to the valve port, and the other end is inclined away from the valve core assembly. The valve port has an end face and a bottom wall that are arranged opposite to each other. At the connection between the first liquid outlet channel and the valve port, a first intersection and a second intersection are formed that are arranged opposite to each other in a first direction. The first intersection is arranged close to the end face, and the second intersection is arranged close to the bottom wall. The distance between the second intersection and the bottom wall is h, where h > 0.

[0008] In one embodiment, h ≥ 1 mm.

[0009] In one embodiment, the distance between the first intersection and the end face of the valve port is greater than the distance between the second intersection and the bottom wall of the valve port.

[0010] In one embodiment, the liquid inlet channel includes a first liquid inlet channel and a second liquid inlet channel that are sequentially connected in the radial direction of the valve port. The first liquid inlet channel is connected to the valve cavity, and the center line of the first liquid inlet channel is located on the side of the valve port facing away from the bottom wall. The second liquid inlet channel is used to connect to an external pipeline, and the center line of the second liquid inlet channel is offset from the center line of the first liquid inlet channel in a first direction.

[0011] In one embodiment, the distance between the centerline of the first inlet channel and the end face of the valve port is A, and the distance between the centerline of the first inlet channel and the centerline of the second inlet channel is B, wherein:

[0012] The centerline of the second inlet channel is located on the side of the valve port pointing towards the bottom wall, satisfying A≤B, and the first inlet channel is an elliptical orifice; or,

[0013] The centerline of the second liquid inlet channel is located on the side of the valve port facing away from the bottom wall, A>B, and the first liquid inlet channel is a circular hole.

[0014] In one embodiment, the cross-sectional area of ​​the second liquid inlet channel is larger than that of the first liquid inlet channel, and is used to seal with an external pipeline.

[0015] In one embodiment, a connecting hole is formed at the connection between the first liquid inlet channel and the valve cavity. The cross-sectional area of ​​the connecting hole is S1, the cross-sectional area of ​​the first liquid inlet channel is S2, and the cross-sectional area of ​​the valve port is S3, wherein S2≥S3 and S1≥S2.

[0016] In one embodiment, a connecting hole is formed at the junction of the liquid inlet channel and the valve chamber, and the connecting hole is gradually widened in a direction away from the liquid inlet channel; and / or,

[0017] The surface of the valve body is provided with a second liquid outlet channel that connects to the other end of the first liquid outlet channel. The second liquid outlet channel is used for sealing and cooperating with an external pipeline.

[0018] This utility model also proposes a refrigeration device, including a solenoid valve, wherein the solenoid valve includes at least:

[0019] A valve body, which defines a valve cavity extending in a first direction, one end of which is open to form a valve port; the side of the valve body is provided with an inlet channel and a first outlet channel communicating with the valve cavity; and,

[0020] A valve core assembly is movably mounted in the valve cavity along a first direction so as to control the opening and closing of the liquid inlet channel and the first liquid outlet channel during its active stroke;

[0021] In the direction near the valve cavity, the first liquid outlet channel is inclined away from the valve port. The valve port has an end face and a bottom wall that are arranged opposite to each other. At the connection between the first liquid outlet channel and the valve cavity, a first intersection and a second intersection are formed that are arranged opposite to each other in a first direction. The first intersection is arranged near the end face, and the second intersection is arranged near the bottom wall. The distance between the second intersection and the bottom wall is h, where h > 0.

[0022] This utility model also proposes an automobile, including a solenoid valve, said solenoid valve comprising at least:

[0023] A valve body, which defines a valve cavity extending in a first direction, one end of which is open to form a valve port; the side of the valve body is provided with an inlet channel and a first outlet channel communicating with the valve cavity; and,

[0024] A valve core assembly is movably mounted in the valve cavity along a first direction so as to control the opening and closing of the liquid inlet channel and the first liquid outlet channel during its active stroke;

[0025] In the direction near the valve cavity, the first liquid outlet channel is inclined away from the valve port. The valve port has an end face and a bottom wall that are arranged opposite to each other. At the connection between the first liquid outlet channel and the valve cavity, a first intersection and a second intersection are formed that are arranged opposite to each other in a first direction. The first intersection is arranged near the end face, and the second intersection is arranged near the bottom wall. The distance between the second intersection and the bottom wall is h, where h > 0.

[0026] In this invention, liquid enters the valve chamber through the inlet channel, flows out after passing through the valve port and the first outlet channel, and the valve port can be opened and closed by the valve core assembly, thereby controlling the flow path. The first outlet channel is not directly connected to the bottom wall of the valve port, but has a certain distance from the bottom wall. During the liquid flow, it converges towards the bottom wall and then flows out from the first outlet channel. Furthermore, the first outlet channel is set to be inclined away from the valve port, that is, the first outlet channel forms a certain angle with the radial direction along the valve port, which can reduce the turbulence of the fluid, thereby reducing the flow resistance of the solenoid valve and improving the flow capacity of the solenoid valve. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0028] Figure 1 A schematic diagram of the structure of an embodiment of the solenoid valve provided by this utility model;

[0029] Figure 2 for Figure 1 A schematic diagram of the structure of the first liquid outlet channel and the valve chamber;

[0030] Figure 3 for Figure 1 A schematic diagram of the structure of an embodiment of the liquid inlet channel;

[0031] Figure 4 for Figure 1 A schematic diagram of another embodiment of the liquid inlet channel;

[0032] Figure 5 for Figure 1 Simulation analysis diagram of the solenoid valve;

[0033] Figure 6 This is a simulation analysis diagram of a solenoid valve in the existing technology.

[0034] Explanation of icon numbers:

[0035] 100. Solenoid valve; 1. Valve body; 1a. Valve seat; 1b. Valve cover; 11. Valve chamber; 111. Bottom wall; 112. Valve port; 12. Inlet channel; 121. First inlet channel; 122. Second inlet channel; 13. First outlet channel; 14. Second outlet channel; 2. Valve core assembly; 10. End face; 20. First intersection; 30. Second intersection.

[0036] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] It should be noted that if the embodiments of this utility model involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0039] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0040] Solenoid valves are typically installed in the piping of refrigeration systems to control the flow of the medium. Traditional solenoid valves suffer from high flow resistance due to positional limitations at the valve seat inlet and outlet. To reduce flow resistance and achieve the desired cooling capacity, the valve port size or piston stroke is often increased. However, such designs are detrimental to the reliability and cost of the solenoid valve.

[0041] Based on the above, this utility model provides a solenoid valve that reduces the internal flow resistance and improves the flow capacity by adjusting the liquid passage of the solenoid valve.

[0042] Please refer to Figures 1 to 2 The solenoid valve 100 includes a valve body 1 and a valve core assembly 2. The valve body 1 defines a valve cavity 11 extending in a first direction. One end of the valve cavity 11 is open to form a valve port 112. The side of the valve body 1 is provided with an inlet channel 12 and a first outlet channel 13 communicating with the valve cavity 11. The valve core assembly 2 is movably installed in the valve cavity 11 in the first direction so as to control the opening and closing between the inlet channel 12 and the first outlet channel 13 during its movement. One end of the first outlet channel 13 is connected to the valve port 112, and the other end is inclined away from the valve core assembly 2. The valve port 112 has an end face 10 and a bottom wall 111 that are arranged opposite to each other. The connection between the first outlet channel 13 and the valve port 112 forms a first intersection 20 and a second intersection 30 that are arranged opposite to each other in the first direction. The first intersection 20 is located near the end face 10, and the second intersection 30 is located near the bottom wall. The distance between the second intersection 30 and the bottom wall 111 is h, where h > 0.

[0043] In the technical solution of this utility model, the inlet channel 12 and the first outlet channel 13 together form a liquid flow channel. Liquid enters the valve chamber 11 from the inlet channel 12, flows out after passing through the valve port 112 and the first outlet channel 13, and the opening and closing of the valve port 112 can be controlled by the valve core assembly 2, thereby controlling the flow path. The first outlet channel 13 is not directly connected to the bottom wall 111 of the valve port 112, but has a certain distance from the bottom wall 111. During the liquid flow process, it converges towards the bottom wall 111 and then flows out from the first outlet channel 13. Furthermore, the first outlet channel 13 is set to be inclined in a direction away from the valve port 112, that is, the first outlet channel 13 forms a certain angle with the radial direction along the valve port 112, which can reduce the turbulence of the fluid, thereby reducing the flow resistance of the solenoid valve 100 and improving the flow capacity of the solenoid valve 100.

[0044] The end face 10 of the valve port 112 is the end face where the edge of the valve port 112 faces away from the bottom wall 111. The bottom wall 111 may be set as a plane, or it may be a conical surface depending on the processing technology. When the bottom wall 111 is set as a conical surface, the distance between the edge of the bottom wall 111 near the valve port 112 and the first liquid outlet channel 13 is h.

[0045] Please refer to Figure 5 Based on the color distribution of the total fluid pressure shown in the simulation analysis diagram, it can be seen that the first liquid outlet channel 13 is blue-green, indicating that after the first liquid outlet channel 13 is set at an incline, the pressure transition is smooth, the corresponding flow velocity is high, and the flow capacity is good, thereby achieving the effect of reducing flow resistance.

[0046] Specifically, based on simulation analysis, the flow resistance reduction effect is better when h≥1mm.

[0047] The distance between the first intersection 20 and the end face 10 of the valve port is greater than the distance between the second intersection 30 and the bottom wall 111. In this embodiment, by setting the first liquid outlet channel 13 closer to the bottom wall 111 than the valve port 112, a certain limitation effect on the range of h is achieved. This is because when the liquid flows towards the bottom wall 111, pressure fluctuations will occur, causing the liquid to form a reverse flow tendency after contacting the bottom wall 111. If the distance between the inlet of the first liquid outlet channel 13 and the bottom wall 111 is too large, the liquid with the reverse flow tendency will aggravate the influence on the flow rate and velocity of the first liquid outlet channel 13, which is not conducive to reducing the flow resistance.

[0048] The valve body 1 includes a valve seat 1a and a valve cover 1b that cooperate with each other. The valve seat 1a and the valve cover 1b together define the valve cavity 11. The valve port 112 is located inside the valve cavity 11. The valve seat 1a is provided with a first liquid outlet channel 13 and a liquid inlet channel 12. The valve core assembly 2 includes a valve core body. The valve core body of the solenoid valve moves up and down in the inner cavity of the valve cover 1b to open or close the valve port 112.

[0049] Furthermore, the inlet channel 12 includes a first inlet channel 121 and a second inlet channel 122 connected sequentially along the radial direction of the valve port 112. The first inlet channel 121 communicates with the valve cavity 11, and the centerline of the first inlet channel 121 is located on the side of the valve port 112 facing away from the bottom wall 111. The second inlet channel 122 is used to connect to an external pipeline. In the structural design, the centerline of the first inlet channel 121 is kept higher than the end face 10 of the valve port to ensure the flow capacity inside the solenoid valve 100.

[0050] When the solenoid valve 100 is used, the position of the external pipeline is fixed. Due to the structure of the valve core assembly 2 and the valve body 1, if the centerline of the first inlet channel 121 is lower than the valve port 112, the liquid will be affected by the step between the valve port 112 and the first inlet channel 121 during the liquid inlet process, which will cause an increase in flow resistance. In order to improve the situation where the fixed position of the second inlet channel 122 restricts the liquid inlet flow resistance, in some embodiments, please refer to Figure 3 The distance between the centerline of the first inlet channel 121 and the end face 10 of the valve port 112 is A, and the distance between the centerline of the first inlet channel 121 and the centerline of the second inlet channel 122 is B. The centerline of the second inlet channel 122 is located on the side of the valve port 112 pointing towards the bottom wall 111. That is, when the centerline of the second inlet channel 122 along the radial direction of the valve port 112 is farther away from the valve cover 1b than the end face 10 of the valve port, A≤B is satisfied. The centerline of the second inlet channel 122 and the centerline of the first inlet channel 121 are staggered in the first direction. By adjusting the position of the first inlet channel 121 relative to the valve port 112 and the second inlet channel 122, the inlet flow resistance of the solenoid valve 100 can be reduced while being compatible with the fixed position of the external pipeline.

[0051] Compared to the existing solenoid valve 100, the height of the valve port 112 remains unchanged, and the position of the second liquid inlet channel 122 is fixed, causing the first liquid inlet channel 121 to rise, thus exhibiting A≤B.

[0052] Based on the above embodiments, the cross-section of the first liquid inlet channel 121 can be set to be elliptical. This satisfies both the requirement that the flow area of ​​the first liquid inlet channel 121 is greater than the maximum flow area of ​​the valve port 112, and the requirement that the centerline of the first liquid inlet channel 121 is higher than the end face 10 of the valve port. Furthermore, the elliptical hole is easy to manufacture.

[0053] In other embodiments, the cross-section of the first liquid inlet channel 121 can also be set as other regular or irregular shapes, as long as the above requirements are met.

[0054] In another embodiment, the centerline of the second inlet channel 122 is located on the side of the valve port 112 facing away from the bottom wall 111, where A > B. In this case, the centerline of the first inlet channel 121 along the radial direction of the valve port 112 is closer to the valve cover 1b than the end face 10 of the valve port. Structurally, the centerlines of the first inlet channel 121 and the second inlet channel 122 can be set to be completely or substantially coincident. The first inlet channel 121 can be machined into a circular hole, which satisfies the requirement that the flow area of ​​the first inlet channel 121 is greater than the maximum flow area of ​​the valve port 112, and also satisfies the requirement that the centerline of the first inlet channel 121 is higher than the end face 10 of the valve port. Furthermore, the machining method of the circular hole is more convenient and can improve machining efficiency.

[0055] Compared to the existing solenoid valve 100, the position of the second inlet channel 122 is fixed. By lowering the height of the valve port 112, A > B is achieved.

[0056] The second liquid inlet channel 122 serves as a sealing hole to seal with the external pipeline. Specifically, the cross-sectional area of ​​the second liquid inlet channel 122 is larger than that of the first liquid inlet channel 121, mainly to seal with the external standard sealing component and ensure connection with the external pipeline.

[0057] Furthermore, a connecting hole is formed at the junction of the inlet channel 12 and the valve chamber 11. The cross-sectional area of ​​the connecting hole is S1, the cross-sectional area of ​​the first inlet channel 121 is S2, and the cross-sectional area of ​​the valve port 112 is S3, wherein S2≥S3 and S1≥S2. This ensures that the areas of the first inlet channel 121 and the connecting hole are greater than or equal to the area of ​​the valve port 112, thus ensuring flow capacity. This configuration meets the requirements of the inlet and outlet flow rates of the solenoid valve 100, while also meeting the design requirements for reducing flow resistance.

[0058] Based on the above embodiments, when the first liquid inlet channel 121 is set to a regular ellipse, when the first liquid inlet channel 121 extends to connect with the valve chamber 11, it will present an irregular shape with an flared opening, corresponding to S1≥S2.

[0059] It should be understood that the cross-sectional area of ​​the connecting hole can be the same as the cross-sectional area of ​​the first liquid inlet channel 121. In this embodiment, the connecting hole is gradually widened in the direction away from the liquid inlet channel 12. At this time, the minimum cross-sectional area of ​​the connecting hole is the same as that of the first liquid inlet channel 121, and the maximum cross-sectional area is greater than that of the first liquid inlet channel 121.

[0060] The surface of the valve body 1 is provided with a second liquid outlet channel 14 that connects to the other end of the first liquid outlet channel 13. The second liquid outlet channel 14 is used for sealing with an external pipeline. Specifically, the inner diameter of the second liquid outlet channel 14 is larger than the inner diameter of the first liquid outlet channel 13, which facilitates the setting of the sealing structure and ensures the connection with the external pipeline.

[0061] The solenoid valve 100 of this utility model has a valve island structure. By increasing the flow area and the relative height of the flow in the first liquid inlet channel 121, and by increasing the relative angle between the first liquid outlet channel 13 and the valve port 112, the flow resistance of the solenoid valve 100 is reduced and the flow capacity is improved.

[0062] Please refer to Figures 5 to 6 , Figure 5 The example shown is based on an embodiment where the first inlet channel 121 has an elliptical cross-section. As can be seen from the diagram, the simulation result for the existing structure's flow resistance is a pressure loss of 9659.5 Pa, while the simulation result for this embodiment is a pressure loss of 9294.1 Pa. Specifically... Figure 6 In the middle section, the high-pressure area is concentrated in the upper part of valve chamber 11, while the low-pressure area is dispersed in the corners of valve chamber 11. The liquid outlet is dominated by low pressure, with a large area of ​​deep blue color. The negative pressure is deeper, and the pressure fluctuations are more intense. Figure 5 In the middle and upper parts of the valve cavity 11, the high-pressure area diffuses to the entire valve cavity, while the low-pressure area is concentrated downstream of the valve core. The liquid outlet is a mixture of medium and low pressure, with a local blue-green transition. The flow field is relatively stable, and the flow resistance is lower.

[0063] This utility model also proposes a refrigeration device, which includes a solenoid valve 100. The specific structure of the solenoid valve 100 is as described in the above embodiments. Since this refrigeration device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0064] Specifically, taking the first direction as the up and down direction as an example, the valve core assembly 2 is attracted and moved by the magnet and the coil being energized, thereby controlling the movement of the valve core assembly 2 to close or open the valve port 112. When the valve port 112 is open, the first liquid inlet channel 121, the second liquid inlet channel 122, the valve chamber 11, the valve port 112, the first liquid outlet channel 13 and the second liquid outlet channel 14 can form a passage.

[0065] It should be noted that the refrigeration equipment can be a refrigerator, freezer, etc., and this utility model does not limit it.

[0066] This utility model also proposes an automobile, which includes a solenoid valve 100. The specific structure of the solenoid valve 100 is as described in the above embodiments. Since this automobile adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0067] It should be understood that a refrigeration device with a solenoid valve 100 can be installed in a car.

[0068] The above are merely preferred embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the inventive concept of this utility model and the contents of this utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.

Claims

1. A solenoid valve, characterized in that, include: A valve body, which defines a valve cavity extending in a first direction, has an open end to form a valve port, and the side of the valve body is provided with an inlet channel and a first outlet channel communicating with the valve cavity; as well as, A valve core assembly is movably mounted in the valve cavity along a first direction so as to control the opening and closing of the liquid inlet channel and the first liquid outlet channel during its active stroke; Wherein, one end of the first liquid outlet channel is connected to the valve port, and the other end is inclined away from the valve core assembly. The valve port has an end face and a bottom wall that are arranged opposite to each other. At the connection between the first liquid outlet channel and the valve port, a first intersection and a second intersection are formed that are arranged opposite to each other in a first direction. The first intersection is arranged close to the end face, and the second intersection is arranged close to the bottom wall. The distance between the second intersection and the bottom wall is h, where h > 0.

2. The solenoid valve as described in claim 1, characterized in that, h≥1mm.

3. The solenoid valve as described in claim 1, characterized in that, The distance between the first intersection and the end face of the valve port is greater than the distance between the second intersection and the bottom wall of the valve port.

4. The solenoid valve as described in claim 1, characterized in that, The liquid inlet channel includes a first liquid inlet channel and a second liquid inlet channel that are connected sequentially along the radial direction of the valve port. The first liquid inlet channel is connected to the valve cavity, and the center line of the first liquid inlet channel is located on the side of the valve port facing away from the bottom wall. The second liquid inlet channel is used to connect to an external pipeline, and the center line of the second liquid inlet channel is offset from the center line of the first liquid inlet channel in a first direction.

5. The solenoid valve as described in claim 4, characterized in that, The distance between the centerline of the first inlet channel and the valve port end face is A, and the distance between the centerline of the first inlet channel and the centerline of the second inlet channel is B, wherein: The centerline of the second inlet channel is located on the side of the valve port pointing towards the bottom wall, satisfying A≤B, and the first inlet channel is an elliptical orifice; or, The centerline of the second liquid inlet channel is located on the side of the valve port facing away from the bottom wall, A>B, and the first liquid inlet channel is a circular hole.

6. The solenoid valve as described in claim 4, characterized in that, The cross-sectional area of ​​the second liquid inlet channel is larger than that of the first liquid inlet channel, and it is used to seal with the external pipeline.

7. The solenoid valve as described in claim 4, characterized in that, A connecting hole is formed at the junction of the first liquid inlet channel and the valve cavity. The cross-sectional area of ​​the connecting hole is S1, the cross-sectional area of ​​the first liquid inlet channel is S2, and the cross-sectional area of ​​the valve port is S3, wherein S2≥S3 and S1≥S2.

8. The solenoid valve as described in claim 1, characterized in that, A connecting hole is formed at the junction of the liquid inlet channel and the valve chamber, and the connecting hole is gradually widened in the direction away from the liquid inlet channel; and / or, The surface of the valve body is provided with a second liquid outlet channel that connects to the other end of the first liquid outlet channel. The second liquid outlet channel is used for sealing and cooperating with an external pipeline.

9. A refrigeration device, characterized in that, Including the solenoid valve as described in any one of claims 1 to 8.

10. A car, characterized in that, Including the solenoid valve as described in any one of claims 1 to 8.

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