Electric control valve of compressor

Abstract

The invention discloses a compressor electric control valve, and relates to the field of compressor accessories, the compressor electric control valve comprises a valve body and a valve rod, a first cavity and a second cavity are arranged in the valve body, two ends of the valve rod are respectively inserted into the first cavity and the second cavity, a corrugated pipe is arranged in the first cavity, the valve body abuts against the corrugated pipe, and an electromagnetic coil is arranged in the second cavity. A magnetic induction sliding block is arranged at the end, away from the corrugated pipe, of the valve rod. A PC hole and a PS hole are formed in the outer side of the valve body, a valve hole used for communicating the PC hole with the PS hole is formed in the valve body, the valve rod and the valve hole are coaxially arranged, a circulation annular groove is formed in the outer wall of the valve rod and used for providing a flowing space for circulation, a plurality of spiral guide strips are arranged on the outer wall of the circulation annular groove, and a plurality of spiral guide grooves are formed in the inner wall of the valve hole. The spiral guide groove and the spiral guide strip are the same in rotating direction and screw pitch, and a sealing ring used for closing the valve hole is arranged on the valve rod. According to the electric control valve, the requirement for the flowing amount of fluid can be met, and the overall strength of the valve rod is ensured.

Description

Technical Field

[0001] The present application relates to the field of compressor accessories, and in particular to an electric control valve for a compressor. Background Art

[0002] At present, the electronic control valve can accurately control the flow direction of the refrigerant, and send the corresponding amount of refrigerant to the evaporator or bypass the evaporator and return directly to the compressor according to the needs. At the same time, the electronic control valve can also monitor and protect the system, and automatically shut down the compressor in the case of high load or failure to avoid damage.

[0003] In the prior art, a compressor electric control valve includes a valve body, a valve stem, a pressure-sensitive bellows, and a solenoid, wherein the solenoid includes a coil, a coil housing, a static iron core, and a moving iron core. An air inlet and an air outlet are provided on the valve body, and a valve hole that is plugged with the valve stem is provided in the valve body, and the gas passes through the air inlet, the valve hole, and the PS hole in sequence to achieve the purpose of gas flow. The valve hole is blocked by the valve stem to achieve the purpose of closing the electric control valve. A circulation ring groove is provided on the side wall of the valve stem, and the position where the circulation ring groove is provided is pulled between the air inlet and the PS hole, so that the fluid flowing through the valve hole can flow through the circulation ring groove. The pressure-sensitive bellows moves the valve stem by sensing the suction pressure, thereby changing the flow area of ​​the valve port to change the flow rate. The coil induces an induced magnetic field by controlling the current, magnetizes the static iron core and the moving iron core, and generates an electromagnetic force between the static iron core and the moving iron core. Since the static iron core is imprisoned in the valve, the moving iron core is driven by the electromagnetic force to drive the valve stem in the valve, thereby achieving the switch of the electrically controlled valve stem.

[0004] With respect to the above-mentioned prior art, the size of the electric control valve is made according to the required equipment, and its external size is difficult to change, resulting in a high restriction on the size of its internal parts. During the flow of the fluid in the hole of the electric control valve, the fluid flows only through the circulation ring groove. Since one end of the valve stem needs to be connected to the spiral tube and the other end needs to be connected to the induction bellows, the length of the valve stem is relatively long. When it is necessary to ensure the flow space of the fluid, the thickness of the circulation ring groove needs to be expanded, which will cause the cross-section of the valve stem at the circulation ring groove to be greatly reduced, affecting the strength of the valve stem. When the thickness of the circulation ring groove is reduced in order to ensure the strength of the valve stem, when the flow rate of the fluid is too large or the flow rate suddenly increases during use, the electric control valve cannot meet the flow rate of the fluid, which urgently needs to be improved. Summary of the invention

[0005] In order to enable the electric control valve to meet the flow rate of the fluid and ensure the overall strength of the valve stem, the present application provides a compressor electric control valve.

[0006] The present application provides an electric control valve for a compressor, which adopts the following technical solution: comprising a valve body and a valve stem, wherein a first chamber and a second chamber are provided in the valve body, and two ends of the valve stem are respectively inserted into the first chamber and the second chamber, a bellows is provided in the first chamber, the valve body abuts against the bellows, an electromagnetic coil is provided in the second chamber, and a magnetic slider is provided at one end of the valve stem away from the bellows, and the electromagnetic coil is used to control the magnetic slider to move along the axis direction of the valve stem; a PC hole and a PS hole are provided on the outer side of the valve body, a valve hole for connecting the PC hole and the PS hole is provided in the valve body, the valve stem is coaxially arranged with the valve hole, a circulation annular groove is provided on the outer wall of the valve stem, and the circulation annular groove is used to provide a flow space for circulation, a plurality of spiral guide strips are provided on the outer wall of the circulation annular groove, a plurality of spiral guide grooves are provided on the inner wall of the valve hole, the spiral guide grooves have the same rotation direction and the same pitch as the spiral guide strips, and a closing ring for closing the valve hole is provided on the valve stem.

[0007] By adopting the above technical solution, when in use, the fluid passes through the PC hole, the circulation ring groove and the PS hole in sequence, so that the circulation can flow normally. When the closing ring is pulled against the valve hole, the valve hole can be closed. When the fluid flows, the cooperation of the spiral guide groove and the spiral guide strip can not only ensure the fluid flow area of ​​the circulation ring groove and the flow volume of the fluid, but also strengthen the overall strength of the valve stem under the action of the spiral guide strip to ensure the service life of the valve stem. The spiral guide groove and the spiral guide strip can also guide the fluid under the action of the spiral setting, change the turbulent flow of the fluid entering the valve body, and make the fluid flow more smoothly. The spiral setting can make the fluid generate spiral rotation during the flow process, so that the fluid generates a vortex of flow, so that a certain suction force can be generated during the flow of the fluid, and the flow rate of the fluid is increased, so that the fluid flow rate can be increased per unit time, and the flow volume of the fluid transported by the electric control valve can be improved.

[0008] Preferably, a spiral locking strip is provided on the outer wall of the valve stem, and the spiral locking strip is plugged into the spiral guide groove. A reset torsion spring is provided in the second chamber, and the two ends of the reset torsion spring are respectively fixed on the inner wall of the second chamber and the outer wall of the magnetic slider. The reset torsion spring is used to drive the spiral locking strip to rotate out of the spiral guide groove.

[0009] By adopting the above technical solution, when the valve stem slides in the valve hole, the spiral lock strip and the spiral guide groove cooperate to make the valve stem screw into the valve hole, which can achieve the purpose of sealing the valve hole and improve the sealing performance of the valve hole; on the other hand, when the pressurized gas enters the PC hole, the rotating spiral lock strip and the spiral guide groove can limit the position of the valve stem and improve the stability of the valve stem closing the valve hole. Under the action of the reset torsion spring, the spiral lock strip can be pulled out of the spiral guide groove to improve the smoothness of pulling the valve stem.

[0010] Preferably, a sealing pressure ring is provided on a side of the closed ring close to the spiral lock strip, and a friction surface is provided on a side of the sealing pressure ring away from the closed ring.

[0011] By adopting the above technical solution and the design of the sealing pressure ring, the closing ring can better close the valve hole and improve the sealing effect of the electric control valve; and the friction surface abuts against the inner wall of the valve body, which can limit the rotation of the valve stem and improve the stability of the valve stem when it is under pressure.

[0012] Preferably, the side wall of the valve body is provided with a first sealing groove, a second sealing groove and a third sealing groove, and a first sealing ring, a second sealing ring and a third sealing ring are respectively arranged inside the three, the first sealing groove is located between the PC hole and the bellows, the second sealing groove is located between the PC hole and the PS hole, and the third sealing groove is located on the side of the PS hole away from the bellows.

[0013] By adopting the above technical solution, the first sealing ring, the second sealing ring and the third sealing ring can make the PC hole and the PS hole better sealed, reduce leakage, and improve the sealing performance of the electric control valve.

[0014] Preferably, a plurality of pressure grooves are provided at the bottom of the first sealing groove and the bottom of the third sealing groove, arc-shaped pressure strips are slidably arranged in the pressure grooves, and compression springs are provided at the bottom of the pressure grooves for pushing the arc-shaped pressure strips to press the first sealing ring and the third sealing ring.

[0015] By adopting the above technical solution, when the electric control valve is in use, the compression spring pushes the arc-shaped pressure strip to press the first sealing ring and the third sealing ring, thereby squeezing the first sealing ring and the third sealing ring and causing both to deform, thereby improving the sealing performance of the first sealing ring and the third sealing ring, and even after the first sealing ring and the third sealing ring are severely worn, they can still better press the seal, thereby ensuring the sealing performance of the electric control valve after long-term use.

[0016] Preferably, a plurality of arc grooves are provided at intervals at the bottom of the second sealing ring, a telescopic hole is provided at the bottom of the arc groove, the telescopic hole is communicated with the spiral guide groove, a telescopic rod is slidably connected in the telescopic hole, an arc piece connected to the telescopic rod is provided on the arc groove, a guiding cone surface is provided at the bottom of the telescopic rod, the guiding cone surface is inclined along a direction close to the bellows toward a direction close to the spiral guide strip, and the spiral locking strip is used to push the telescopic rod to press against the second sealing ring.

[0017] By adopting the above technical solution, there are two situations when it is used. When the spiral lock strip is disengaged from the spiral guide groove and the PC hole is connected to the PS hole, there is no requirement for sealing at this time, and the arc piece is away from the second sealing ring; when the spiral lock strip is screwed into the spiral guide groove and the PC hole and the PS hole are closed, it is necessary to completely disconnect the connection between the PC hole and the PS hole. The spiral lock strip pushes the telescopic rod and drives the arc piece to push the second sealing ring to expand outward, so that the second sealing ring can be deformed, thereby better ensuring the sealing effect of the second sealing ring; and adopting such a design can not only ensure the sealing effect of the second sealing ring, but also reduce the wear on the second sealing ring, thereby increasing the service life of the second sealing ring.

[0018] Preferably, the PC hole is opened in a depth direction opposite to the locking rotation direction of the spiral lock strip, and the PS hole is opened in a depth direction along the locking rotation direction of the spiral lock strip.

[0019] By adopting the above technical solution, the inclined PC holes and PS holes can be used to increase the rotation of the fluid entering the PC hole, promote the rotation of the fluid, accelerate the flow of the fluid in the circulation ring groove, and improve the smoothness of fluid transportation. In combination with the PS hole, the fluid can be discharged more smoothly, reducing the resistance and energy loss during fluid flow, and improving the smoothness of fluid flow.

[0020] Preferably, the PC hole and the PS hole are opened obliquely in a direction approaching each other.

[0021] By adopting the above technical scheme, the PC hole and the PS hole are opened in a mutually inclined manner. On the one hand, the openings of the ends of the PC hole and the PS hole close to the valve hole can be closer to the valve hole connection, reducing the resistance and energy loss during fluid flow. On the other hand, the length of the valve hole can be greatly shortened, reducing the flow space of the fluid in the valve hole, reducing the resistance of the fluid through the electric control valve, and better ensuring the flow rate of the fluid; with the combination of multiple spirally arranged components, the fluid can flow comprehensively inside the electric control valve, it is less likely to produce dead corners, and the accumulation of impurities is reduced. In addition, the spiral flow can achieve the purpose of synchronously cleaning the circulation ring groove, thereby improving the cleanliness of the inside of the electric control valve and improving the convenience of using the electric control valve.

[0022] Preferably, a flow chamfer is provided on the side wall of the flow ring groove, and the chamfer is opened toward the spiral locking strip along its inclined direction.

[0023] By adopting the above technical solution, the chamfer can make the valve stem more convenient to insert into the valve hole, thereby improving the smoothness of the valve stem sliding.

[0024] Preferably, a limiting plate is provided on the valve stem, and a limiting groove for limiting the rotation angle of the limiting plate is provided on the inner wall of the valve hole.

[0025] By adopting the above technical solution and using the limiting plate in conjunction with the limiting groove, the rotation angle of the valve stem can be limited, so that the spiral lock strip and the spiral guide groove can be more accurately docked, thereby improving the smoothness of the valve stem sliding.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. When in use, the fluid passes through the PC hole, the circulation ring groove and the PS hole in sequence, so that the circulation can flow normally. When the closing ring is pulled against the valve hole, the valve hole can be closed. When the fluid flows, the cooperation of the spiral guide groove and the spiral guide strip can not only ensure the fluid flow area of ​​the circulation ring groove and the flow volume of the fluid, but also strengthen the overall strength of the valve stem under the action of the spiral guide strip to ensure the service life of the valve stem. The spiral guide groove and the spiral guide strip can also guide the fluid and change the turbulent flow of the fluid entering the valve body, so that the fluid can flow more smoothly. The spiral setting can make the fluid produce spiral rotation during the flow process, so that the fluid produces a vortex of flow, so that a certain suction force can be generated during the flow of the fluid, increasing the flow rate of the fluid, so that the fluid flow rate can be increased per unit time, and the flow volume of the fluid transported by the electric control valve can be improved; 2. When in use, when the valve stem slides in the valve hole, the spiral lock strip and the spiral guide groove cooperate to make the valve stem screw into the valve hole, which can seal the valve hole and improve the sealing performance of the valve hole. On the other hand, when the pressurized gas enters the PC hole, the rotating spiral lock strip and the spiral guide groove can limit the position of the valve stem and improve the stability of the valve stem closing the valve hole. Under the action of the reset torsion spring, the spiral lock strip can be pulled out of the spiral guide groove to improve the smoothness of pulling the valve stem. 3. There are two situations when using it. When the spiral lock strip is disengaged from the spiral guide groove and the PC hole is connected to the PS hole, there is no requirement for sealing at this time, and the arc piece is away from the second sealing ring; when the spiral lock strip is screwed into the spiral guide groove and the PC hole and the PS hole are closed, it is necessary to completely disconnect the PC hole and the PS hole, and the spiral lock strip pushes the telescopic rod and drives the arc piece to push the second sealing ring to expand outward, so that the second sealing ring can be deformed, thereby better ensuring the sealing effect of the second sealing ring; and adopting such a design can not only ensure the sealing effect of the second sealing ring, but also reduce the wear on the second sealing ring and increase the service life of the second sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a cross-sectional view of an electric control valve for a compressor according to an embodiment of the present application; Figure 2 for Figure 1 A magnified schematic diagram of part A; Figure 3 for Figure 1 A magnified schematic diagram of part B; 1. Valve body; 2. First sealing ring; 3. PC hole; 4. Second sealing ring; 5. PS hole; 6. Third sealing ring; 7. Valve stem; 8. Magnetic slider; 9. Electromagnetic coil; 10. Reset torsion spring; 11. First chamber; 12. Bellows; 13. First sealing groove; 14. Valve hole; 15. Second sealing groove; 16. Third sealing groove; 17. Arc sheet; 18. Telescopic rod; 19. Spiral guide strip; 20. Circulation ring groove; 21. Spiral lock strip; 22. Spiral guide groove; 23. Arc groove; 24. Pressure groove; 25. Arc pressure strip; 26. Compression spring; 27. Second chamber; 28. Sealing pressure ring; 29. ​​Closing ring; 30. Circulation chamfer; 31. Limiting sheet; 32. Limiting groove. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1 - Figure 3 This application is described in further detail.

[0029] The embodiment of the present application discloses an electronically controlled valve for a compressor.

[0030] Reference Figure 1 and Figure 2A compressor electric control valve includes a valve body 1 and a valve stem 7. The valve body 1 is provided with a first chamber 11 and a second chamber 27. The two ends of the valve stem 7 are inserted into the first chamber 11 and the second chamber 27 respectively. A bellows 12 is provided in the first chamber 11. The valve body 1 abuts against the bellows 12. The bellows 12 is a pressure-sensitive element used to monitor the suction pressure. An electromagnetic coil 9 is installed in the second chamber 27. A magnetic slider 8 is fixed to the end of the valve stem 7 away from the bellows 12. By controlling the positive and reverse directions of the current in the electromagnetic coil 9, the magnetic slider 8 can be controlled to move along the axial direction of the valve stem 7. The convenience of controlling the valve stem 7 is improved. A PC hole 3 and a PS hole 5 are provided on the outside of the valve body 1. A valve hole 14 for connecting the PC hole 3 and the PS hole 5 is provided in the valve body 1. The valve stem 7 and the valve hole 14 are coaxially arranged. The outer wall of the valve stem 7 is provided with a circulation annular groove 20 for circulating fluid. The outer wall of the circulation ring groove 20 is integrally formed with a plurality of spiral guide strips 19, which are arranged in a spiral and have a boss-like cross section. The inner wall of the valve hole 14 is provided with a plurality of spiral guide grooves 22, which are spiral and have a boss-like cross section. The spiral guide grooves 22 have the same rotation direction and the same pitch as the spiral guide strips 19. The top middle position of the spiral guide strip 19 is arranged relative to the edge position of the spiral guide strip 22, and the side wall of the spiral guide strip 19 and the side wall of the spiral guide strip 22 can better guide the fluid at the same time. With such a design, when the fluid passes through the circulation ring groove 20, the fluid can be better guided under the joint action of the spiral guide groove 22 and the spiral guide strip 19, so that the vortex of the fluid flow is more stable. A closed ring 29 for closing the valve hole 14 is arranged on the valve stem 7, and a sealing pressure ring 28 is fixed on the side of the closed ring 29 close to the spiral lock strip 21, and the sealing pressure ring 28 is made of rubber material, and a friction surface is arranged on the side of the sealing pressure ring 28 away from the closed ring 29. The friction surface can be provided to enable the valve stem 7 to be fixed more stably, thereby improving the stability of the valve stem 7 when locked.

[0031] The outer wall of the valve stem 7 is integrally formed with a spiral lock strip 21. The spiral lock strip 21 and the spiral guide groove 22 have the same rotation direction and the same pitch. The spiral guide groove 22 and the spiral lock strip 21 are plugged and matched, so that the spiral guide groove 22 can be better sealed. A reset torsion spring 10 is installed in the second chamber 27. The two ends of the reset torsion spring 10 are respectively fixed to the bottom of the second chamber 27 and the outer wall of the magnetic slider 8. The reset torsion spring 10 is used to drive the spiral lock strip 21 to rotate out of the spiral guide groove 22, thereby improving the convenience of the movement of the valve stem 7. The side wall of the circulation ring groove 20 is provided with a circulation chamfer 30, and the circulation chamfer 30 is opened toward the spiral lock strip 21 along its inclined direction, so that the fluid can flow more smoothly. The thickness of the spiral guide strip 19 gradually decreases in the direction close to the bellows 12, which can not only reduce the resistance of the fluid when it flows through, but also enable the spiral lock strip 21 to be inserted into the spiral guide groove 22 more smoothly, thereby improving the smoothness of the movement of the valve stem 7.

[0032] The side wall of the valve body 1 is provided with a first sealing groove 13, a second sealing groove 15 and a third sealing groove 16, and the first sealing ring 2, the second sealing ring 4 and the third sealing ring 6 are respectively arranged inside the three. The sealing ring adopts a rectangular sealing ring. The first sealing groove 13 is installed between the PC hole 3 and the bellows 12, the second sealing groove 15 is located between the PC hole 3 and the PS hole 5, and the third sealing groove 16 is located on the side of the PS hole 5 away from the bellows 12. With such a design, the PC hole 3 and the PS hole 5 can be better sealed, and the overall sealing of the electric control valve is improved. A plurality of pressing grooves 24 are provided at the bottom of the first sealing groove 13 and the bottom of the third sealing groove 16. An arc pressure strip 25 is slidably connected in the pressure groove 24. The arc pressure strip 25 is C-shaped. A compression spring 26 for pushing the arc pressure strip 25 to press the first sealing ring 2 and the third sealing ring 6 is installed at the bottom of the pressure groove 24. Through the extrusion of the compression spring 26, the first sealing ring 2 and the third sealing ring 6 can be better sealed to the electric control valve. A plurality of arc grooves 23 are provided at intervals at the bottom of the second sealing ring 4, a telescopic hole is provided at the bottom of the arc groove 23, the telescopic hole is connected to the spiral guide groove 22, a telescopic rod 18 is slidably connected in the telescopic hole, an arc sheet 17 connected to the telescopic rod 18 is installed on the arc groove 23, and a plurality of arc sheets 17 are used to support the second sealing ring 4; a guiding cone is provided at the bottom of the telescopic rod 18, and the guiding cone is inclined from the direction close to the bellows 12 to the direction close to the spiral guide strip 19, and the spiral lock strip 21 is used to push the telescopic rod 18 to press against the second sealing ring 4. Such a design can reduce the continuous pressing time of the second sealing ring 4, reduce the wear of the second sealing ring 4 when in use, and can meet the sealing of the PC hole 3 and the PS hole 5 to ensure the sealing of the electric control valve.

[0033] The PC hole 3 is opened in the depth direction in the opposite direction of the locking rotation direction of the spiral lock strip 21; the PS hole 5 is opened in the depth direction in the locking rotation direction of the spiral lock strip 21; the PC hole 3 and the PS hole 5 are opened in an inclined direction in a direction close to each other. With such a design, the fluid can be injected along the tangent, so that the fluid can rotate and flow more smoothly and quickly. In addition, the inclined PC hole 3 and PS hole 5 are used to reduce the flow space of the fluid in the valve hole 14, reduce the resistance of the fluid passing through the electric control valve, and better ensure the flow of the fluid.

[0034] The implementation principle of a compressor electric control valve in the embodiment of the present application is as follows: when the electric control valve is working, the valve body 1 is installed in the equipment, and the electromagnetic coil 9 controls the movement of the magnetic slider 8, thereby driving the valve stem 7 to move along its axis to achieve the purpose of controlling the closing and opening of the valve hole 14; through the cooperation of the spiral lock bar 21 and the spiral guide groove 22, the valve stem 7 moves along its axis and rotates at the same time, so as to better seal the valve hole 14 and improve the sealing performance of the valve hole 14. Under the action of the spiral guide bar 19 and the spiral guide groove 22, the fluid entering the circulation ring groove 20 is rotated, thereby reducing the turbulence of the water flow and increasing the flow rate of the fluid. The spiral setting can make the fluid generate spiral rotation during the flow process, so that the fluid generates a flow vortex, so that a certain suction force can be generated during the flow of the fluid, and the flow rate of the fluid is increased, so that the fluid flow rate can be increased per unit time, and the flow volume of the fluid transported by the electric control valve can be increased. At the same time, under the action of the spiral lock strip 21 and the telescopic rod 18, the second sealing ring 4 is sealed when needed, and the pressure on the second sealing ring 4 is reduced when the PC hole 3 and the PS hole 5 are connected, thereby ensuring the service life of the second sealing ring 4.

[0035] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A compressor electronically controlled valve, characterized in that: The invention comprises a valve body (1) and a valve stem (7), wherein a first chamber (11) and a second chamber (27) are provided in the valve body (1), and two ends of the valve stem (7) are respectively inserted into the first chamber (11) and the second chamber (27), wherein a bellows (12) is provided in the first chamber (11), and the valve body (1) abuts against the bellows (12), and an electromagnetic coil (9) is provided in the second chamber (27), and a magnetic slider (8) is provided at one end of the valve stem (7) away from the bellows (12), and the electromagnetic coil (9) is used to control the magnetic slider (8) to move along the axis of the valve stem (7); a PC hole (3) and a PS hole (5) are provided on the outer side of the valve body (1), and a valve hole (14) for connecting the PC hole (3) and the PS hole (5) is provided in the valve body (1), and the valve stem (7) and the valve hole (14) are coaxially arranged, and the valve stem ( 7) A circulation annular groove (20) is provided on the outer wall of the circulation annular groove (20), and the circulation annular groove (20) is used to provide a flow space for the fluid. The outer wall of the circulation annular groove (20) is provided with a plurality of spiral guide strips (19). The inner wall of the valve hole (14) is provided with a plurality of spiral guide grooves (22). The spiral guide grooves (22) have the same rotation direction and the same pitch as the spiral guide strips (19). A closing ring (29) for closing the valve hole (14) is provided on the valve stem (7); a spiral locking strip (21) is provided on the outer wall of the valve stem (7), and the spiral locking strip (21) is plugged into and matched with the spiral guide groove (22). A reset torsion spring (10) is provided in the second chamber (27), and the two ends of the reset torsion spring (10) are respectively fixed on the inner wall of the second chamber (27) and the outer wall of the magnetic slider (8). The reset torsion spring (10) is used to drive the spiral locking strip (21) to rotate out of the spiral guide groove (22).

2. The compressor electronically controlled valve according to claim 1, characterized in that: A sealing pressure ring (28) is arranged on a side of the closed ring (29) close to the spiral lock strip (21), and a friction surface is arranged on a side of the sealing pressure ring (28) away from the closed ring (29).

3. The compressor electronically controlled valve according to claim 2, characterized in that: The side wall of the valve body (1) is provided with a first sealing groove (13), a second sealing groove (15) and a third sealing groove (16), and a first sealing ring (2), a second sealing ring (4) and a third sealing ring (6) are respectively arranged inside the three. The first sealing groove (13) is located between the PC hole (3) and the bellows (12), the second sealing groove (15) is located between the PC hole (3) and the PS hole (5), and the third sealing groove (16) is located on the side of the PS hole (5) away from the bellows (12).

4. The compressor electronically controlled valve according to claim 3, characterized in that: A plurality of pressing grooves (24) are provided at the bottom of the first sealing groove (13) and the bottom of the third sealing groove (16), arc-shaped pressing strips (25) are slidably arranged in the pressing grooves (24), and a compression spring (26) is provided at the bottom of the pressing grooves (24) for pushing the arc-shaped pressing strips (25) to press the first sealing ring (2) and the third sealing ring (6).

5. The compressor electronically controlled valve according to claim 4, characterized in that: A plurality of arc grooves (23) are provided at intervals at the bottom of the second sealing ring (4); a telescopic hole is provided at the bottom of the arc groove (23); the telescopic hole is communicated with the spiral guide groove (22); a telescopic rod (18) is slidably connected in the telescopic hole; an arc piece (17) connected to the telescopic rod (18) is provided on the arc groove (23); a guiding cone surface is provided at the bottom of the telescopic rod (18); the guiding cone surface is inclined from a direction close to the bellows (12) to a direction close to the spiral guide strip (19); and the spiral locking strip (21) is used to push the telescopic rod (18) to press against the second sealing ring (4).

6. The compressor electronically controlled valve according to claim 5, characterized in that: The PC hole (3) is opened in a depth direction opposite to the locking rotation direction of the spiral lock strip (21), and the PS hole (5) is opened in a depth direction along the locking rotation direction of the spiral lock strip (21).

7. The compressor electronically controlled valve according to claim 6, characterized in that: The PC hole (3) and the PS hole (5) are opened obliquely in a direction approaching each other.

8. The compressor electronically controlled valve according to claim 7, characterized in that: A circulation chamfer (30) is provided on the side wall of the circulation annular groove (20), and the circulation chamfer (30) is opened toward the spiral locking strip (21) along its inclined direction.

9. The compressor electronically controlled valve according to claim 8, characterized in that: A limiting plate (31) is provided on the valve stem (7), and a limiting groove (32) for limiting the rotation angle of the limiting plate (31) is provided on the inner wall of the valve hole (14).

Images