Electric control valve of automobile air conditioner compressor

Abstract

The invention discloses an electric control valve of an automobile air conditioner compressor, and relates to the field of electric control valves, the electric control valve comprises a valve body, a valve rod, a pressure sensing corrugated pipe, an electromagnetic coil and a movable sliding block, a plurality of air inlets and a plurality of air outlets are formed in the side wall of the valve body, a valve hole matched with the valve rod in an inserted mode is formed in the valve body, and the valve rod is used for blocking the valve hole; the side, close to the pressure sensing corrugated pipe, of the valve rod is rotationally connected with a plurality of spiral connecting pieces, the multiple spiral connecting pieces are arranged in a circumferential array mode, the spiral connecting pieces are spirally arranged in the direction away from the valve rod, a generator is arranged on the side, away from the pressure sensing corrugated pipe, of the valve body, and connecting assemblies are arranged between the generator and the spiral connecting pieces. The spiral connecting piece is used for driving the generator. According to the electric control valve, the energy loss in the refrigerant transmission process is reduced, and the flowing smoothness of the refrigerant in the electric control valve is improved.

Description

Technical Field

[0001] The present application relates to the field of electronically controlled valves, and more particularly to an electronically controlled valve for an automotive air conditioning compressor. Background Art

[0002] Currently, the electronically controlled valve of an automotive compressor precisely controls the refrigerant flow direction, sending a corresponding amount of refrigerant into the evaporator or directly returning it to the compressor by bypassing the evaporator. The pressure regulation function can adjust the working state of the compressor in real time according to the system pressure change to maintain the stable working pressure of the system. The control valve consists of mechanical elements and an electromagnetic unit, and the adjustment process is controlled by the electromagnetic unit.

[0003] In related technologies, an electronically controlled valve for a compressor includes a valve body, a valve stem, a pressure sensing bellows, and a solenoid. The solenoid includes a coil, a coil housing, a stationary iron core, and a moving iron core. An air inlet and an air outlet are radially formed on the valve body. A valve hole adapted to be inserted with the valve stem is axially formed in the valve body. The gas sequentially passes through the air inlet, the valve hole, and the PS hole to achieve the purpose of gas flow. The valve hole is blocked by the valve stem to close the electronically controlled valve. A flow-through ring groove is formed on the side wall of the valve stem, and the position where the flow-through ring groove is formed is pulled between the air inlet and the PS hole, so that the fluid flowing through the valve hole can flow through the flow-through ring groove.

[0004] Regarding the above-mentioned related patents, when the automotive air conditioning system is operating, there is a pressure difference on both sides of the electronically controlled valve, and the refrigerant flows from the high-pressure side to the low-pressure side, so that the refrigerant can flow more smoothly. The inventor believes that when the refrigerant in the electronically controlled valve flows through the flow-through ring groove, due to the large change in the refrigerant flow direction, a large amount of energy loss will be caused, which urgently needs to be improved. Summary of the Invention

[0005] In order to reduce the energy loss during the refrigerant transmission and improve the smoothness of the refrigerant flow in the electronically controlled valve, the present application provides an electronically controlled valve for an automotive air conditioning compressor.

[0006] The electronically controlled valve for an automotive air conditioning compressor provided by the present application adopts the following technical solution:

[0007] It includes a valve body, a valve stem, a pressure sensing bellows, an electromagnetic coil, and a moving slider. A plurality of air inlets and a plurality of air outlets are formed on the side wall of the valve body. A valve hole adapted to be inserted with the valve stem is formed in the valve body. The valve stem is used to block the valve hole. A plurality of spiral connecting pieces are rotatably connected to one side of the valve stem close to the pressure sensing bellows. The plurality of spiral connecting pieces are arranged in a circumferential array. The spiral connecting pieces are spirally arranged in a direction away from the valve stem. A generator is arranged on one side of the valve body away from the pressure sensing bellows. A connecting component is arranged between the generator and the spiral connecting pieces. The spiral connecting pieces are used to drive the generator.

[0008] By adopting the above technical solution, during operation, the electromagnetic coil drives the moving slider to move, and at the same time drives the valve stem to move, thereby realizing the control of the opening and closing of the electric control valve. When the refrigerant flows through the air inlet, the valve hole and the air outlet, the flow of the refrigerant can be realized. When the refrigerant flows through the valve hole, it flows through the gap between adjacent spiral connecting pieces. Through multiple spiral connecting pieces, not only can the connection of the valve stem be better realized, but also the stability of the connection between the end of the valve stem and the pressure-sensitive bellows can be improved. Compared with the prior art where the connection position is set in the center, multiple spiral connecting pieces are arranged in a circumferential array, and the spiral connecting pieces are arranged on the outer ring, which can improve the torsional resistance of the overall structure and also improve the connection firmness with the valve stem; moreover, the spiral connecting pieces arranged in a spiral shape can make the refrigerant inside the control valve change direction more smoothly, reduce the energy loss of the refrigerant, and cooperate with the rotating spiral connecting pieces, which can play a role in guiding the refrigerant. During the rotation process, it can suck the refrigerant, making the refrigerant flow more smoothly; during the rotation of the spiral connecting pieces, it can also cooperate with the generator to generate electricity, improving the convenience of energy recovery and utilization of the electric control valve.

[0009] Preferably, the connecting component includes a rotating shaft rotatably arranged inside the valve stem. One side of the rotating shaft close to the spiral connecting piece is connected to it. One side of the generator close to the valve body is rotatably connected with a rotating sleeve. A connecting hole inserted with the rotating shaft is opened inside the rotating sleeve. A connecting stop piece is arranged on the outer wall of the rotating shaft, and a connecting stop groove slidably matched with the connecting stop piece is opened along the axial direction of the inner wall of the connecting hole.

[0010] By adopting the above technical solution, through the cooperation of the connecting stop piece and the connecting stop groove, when the valve stem and the spiral connecting piece slide, the rotating sleeve can still be driven to rotate more conveniently, improving the convenience of converting the mechanical energy of the generator into electrical energy.

[0011] Preferably, a rotating disk is arranged at one end of the spiral connecting piece close to the valve stem. A plurality of spiral connecting pieces are all fixed on the rotating disk. One end of the rotating shaft is fixed on the rotating disk. A limiting disk is in threaded fit connection with the rotating shaft. The limiting disk abuts against the side of the valve stem away from the spiral connecting piece. A rotating bearing is arranged between the limiting disk and the valve stem.

[0012] By adopting the above technical solution, the rotating disk and the valve stem cooperate to limit the axial movement of the valve stem, enabling the rotating shaft to be more stably rotatably connected to the valve stem; when the spiral connecting piece is subjected to the stamping of the refrigerant, there will be a pulling force that pulls the spiral connecting piece to move away from the valve stem. Cooperating with the rotating bearing, the spiral connecting piece can rotate more smoothly, reducing energy loss and enabling the generator to convert more electrical energy.

[0013] Preferably, a sealing ring is arranged between the rotating disk and the valve stem. A sealing groove for clamping and cooperating with the sealing ring is formed on one side of the rotating disk close to the valve stem, and the sealing groove is arranged close to the edge of the rotating disk.

[0014] By adopting the above technical solution, the sealing ring can be used to seal the gap between the rotating disk and the valve stem, reduce the occurrence of refrigerant leakage, and when the spiral connecting piece abuts against the pressure-sensitive corrugated pipe, a certain pressure can be generated on the sealing ring, so that the sealing ring generates a certain deformation, the sealing ring expands outwards and abuts against the inner wall of the valve hole, so as to enhance the sealing performance, reduce the connection between the air inlet and the air outlet when the electric control valve is closed, and improve the accuracy of using the electric control valve.

[0015] Preferably, the thickness of the spiral connecting piece gradually decreases radially outwards.

[0016] By adopting the above technical solution, when the refrigerant flows through the spiral connecting piece, the resistance of the refrigerant during flow can be reduced, the energy loss can be reduced, and the smoothness of the refrigerant flow can be improved.

[0017] Preferably, both the air inlet and the air outlet are arranged along the tangential direction of the valve body.

[0018] By adopting the above technical solution, the air inlet and the air outlet arranged in the tangential direction can make the flow direction of the refrigerant better adapt to the spiral connecting piece when the refrigerant enters the valve body, and improve the refrigerant flow.

[0019] Preferably, a guide rod coaxially arranged with the valve hole is rotatably arranged in the valve body. A sliding cavity is formed between multiple spiral connecting pieces. A guide groove for sliding cooperation with the spiral connecting piece is spirally arranged on the outer wall of the guide rod. When the valve stem closes the valve hole, the guide rod abuts against the rotating disk.

[0020] By adopting the above technical solution, the guide rod can be used to support multiple spiral connecting pieces, improve the stability of the spiral connecting piece during use, and the guide rod can be used to limit the rotating disk, improve the accuracy when the valve stem closes the valve hole, improve the convenience of using the electric control valve, and setting the guide rod opposite to the air inlet can support the impact caused by the entering refrigerant and improve the stability of using the spiral connecting piece.

[0021] Preferably, a plurality of sealing rings are arranged on the valve body. The plurality of sealing rings are arranged on both sides of the closed air inlet and air outlet. A sealing ring groove for sleeving the sealing ring is formed on the valve body. A plurality of rotating pieces are rotatably connected to the side wall of the sealing ring groove, and a compression spring for driving the rotating piece to abut tightly against the sealing ring is arranged on the side wall of the sealing ring groove.

[0022] By adopting the above technical solution, the compression spring pushes the rotating piece to press the sealing ring, which can make the sealing ring better pressed, improve the sealing performance of the electric control valve, reduce the leakage of the refrigerant, and improve the safety of using the electric control valve.

[0023] Preferably, two clamping rings are arranged on the side wall of the valve body. The clamping rings are used to limit the insertion depth of the electric control valve. The two clamping rings are arranged near the two ends of the valve body. The sealing ring groove is formed on the clamping ring. A plurality of expansion grooves communicating with the sealing ring groove are formed on the side of the clamping ring away from the generator. An expansion block is slidably arranged in the expansion groove. When the electric control valve is installed, the expansion block is pushed to move towards the sealing ring.

[0024] By adopting the above technical solution, when the electric control valve is installed, the expansion block is pushed to move towards the sealing ring. The expansion block and the rotating piece can better push the sealing ring to move outwards, so that the sealing ring can be more fully pressed, and the sealing performance of the electric control valve is improved.

[0025] Preferably, a sliding arc piece is arranged on the side of the expansion block close to the sealing ring. A rotating groove is formed on the side of the sliding arc piece close to the sealing ring. When the sliding arc piece is pushed out, the rotating piece abuts against the rotating groove. A limiting guide block is arranged on the side of the sliding arc piece away from the sealing ring. A limiting guide groove inserted and matched with the limiting guide block is formed on the side wall of the sealing ring groove.

[0026] By adopting the above technical solution, the length of the abutting sealing ring can be increased through the sliding arc piece, and the sealing performance of the sealing ring is improved; the cooperation of the rotating groove and the rotating piece can make the rotating piece and the sliding arc piece better push the sealing ring to expand outwards, better ensuring the sealing performance of the sealing ring. Finally, under the action of the limiting guide block and the limiting guide groove, the sliding arc piece can slide more smoothly, improving the stability of using the sliding arc piece.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. An electromagnetic coil is used to drive a moving slider to move, and at the same time drive a valve stem to move, so as to control the opening and closing of the electronically controlled valve. When the refrigerant flows through the intake port, the valve hole and the outlet port, the flow of the refrigerant can be realized. When the refrigerant flows through the valve hole, it flows through the gap between adjacent spiral connecting pieces. By means of multiple spiral connecting pieces, not only can the connection of the valve stem be better realized, but also the stability of the connection between the end of the valve stem and the pressure-sensitive bellows can be improved. Compared with the prior art where the connection position is set in the center, the multiple spiral connecting pieces are arranged in a circumferential array, and the spiral connecting pieces are arranged on the outer ring, which can improve the torsional resistance of the overall structure and also improve the connection firmness with the valve stem. Moreover, the spiral connecting pieces arranged in a spiral shape can make the refrigerant inside the control valve change direction more smoothly, reduce the energy loss of the refrigerant, and cooperate with the rotating spiral connecting pieces, which can play a role in guiding the refrigerant. During the rotation process, it can suck the refrigerant, making the refrigerant flow more smoothly. During the rotation of the spiral connecting pieces, it can also cooperate with the generator to generate electricity, improving the convenience of energy recovery and utilization of the electronically controlled valve;

[0029] 2. By means of the cooperation between the rotating disc and the valve stem, the axial movement of the valve stem can be restricted, so that the rotating shaft can be more stably rotatably connected to the valve stem; when the spiral connecting piece is subjected to the impact of the refrigerant, there will be a pulling force that pulls the spiral connecting piece to move away from the valve stem. Cooperating with the rotating bearing, the spiral connecting piece can rotate more smoothly, reducing energy loss, so that the generator can convert more electric energy;

[0030] 3. By means of the sliding arc piece, the length of the abutting sealing ring can be increased, improving the sealing performance of the sealing ring; the cooperation between the rotating groove and the rotating piece can make the rotating piece and the sliding arc piece better push the sealing ring to expand outwards, better ensuring the sealing performance of the sealing ring. Finally, under the action of the limiting guide block and the limiting guide groove, the sliding arc piece can slide more smoothly, improving the stability of using the sliding arc piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 FIG. 12 is a schematic diagram of the overall structure of an electronically controlled valve for an automotive air-conditioning compressor according to Embodiment 1 of the present application;

[0032] Figure 2 is Figure 1 an enlarged schematic view of part A in FIG. 12;

[0033] Figure 3 is Figure 1 an enlarged schematic view of part B in FIG. 12;

[0034] Figure 4 FIG. 28 is a schematic diagram mainly showing the spiral connecting piece according to Embodiment 1 of the present application;

[0035] Figure 5Schematic diagram mainly showing the snap ring structure in Embodiment 2 of this application;

[0036] Reference numerals: 1, pressure-sensitive bellows; 2, spiral connecting piece; 3, air inlet; 4, air outlet; 5, valve stem; 6, valve body; 7, moving slider; 8, electromagnetic coil; 9, rotating sleeve; 10, generator; 11, sealing column; 12, sealing ring; 13, valve hole; 14, rotating shaft; 15, sliding cavity; 16, rotating disc; 17, closing ring; 18, sealing ring groove; 19, rotating piece; 20, compression spring; 22, rotating bearing; 23, limiting disc; 24, connecting hole; 25, connecting retaining piece; 26, connecting retaining groove; 27, sliding arc piece; 28, rotating groove; 29, telescopic block; 30, snap ring; 31, guide rod; 32, limiting guide block; 33, limiting guide groove. Detailed implementation mode

[0037] The following combines the attached Figure 1 - Figure 5 to further elaborate on this application in detail.

[0038] Embodiment 1 of this application discloses an electronically controlled valve for an automotive air conditioner compressor.

[0039] Embodiment 1

[0040] Refer to Figure 1, An electronically controlled valve for an automotive air conditioner compressor, comprising a valve body 6, a valve rod 5, a pressure-sensitive bellows 1, an electromagnetic coil 8 and a moving slider 7. By controlling the energization of the electromagnetic coil 8, the movement of the moving slider 7 can be controlled. The valve rod 5 is fixed to the moving slider 7 and is coaxially arranged with the moving slider 7. The pressure-sensitive bellows 1 is installed at one end of the valve rod 5 away from the moving slider 7. The pressure-sensitive bellows 1 moves the valve rod 5 by sensing the suction pressure, thereby changing the flow area of the valve port to change the flow rate. A plurality of air inlets 3 and a plurality of air outlets 4 are provided on the side wall of the valve body 6. A valve hole 13 is provided in the valve body 6 for plugging and matching with the valve rod 5. When the valve rod 5 is inserted into the valve hole 13, it is used to block the valve hole 13. A spiral connecting piece 2 is rotatably connected to the side of the valve rod 5 close to the pressure-sensitive bellows 1. A plurality of spiral connecting pieces 2 are arranged in a circumferential array. The spiral connecting piece 2 is spirally arranged in a direction away from the valve rod 5. One end of the spiral connecting piece 2 away from the valve rod 5 is fixedly connected to a sealing column 11, and the sealing column 11 abuts against the pressure-sensitive bellows 1 to control it. A generator 10 is fixed on the side of the valve body 6 away from the pressure-sensitive bellows 1. A connecting component is fixed between the generator 10 and the spiral connecting piece 2. The spiral connecting piece 2 is used to drive the generator 10, so as to achieve the function of generating electricity. During the use of the electronically controlled valve, the pressure difference between the air inlet 3 and the air outlet 4 can be used to drive the spiral connecting piece 2, improving the energy utilization rate. And with such a design, the spiral design of the spiral connecting piece 2 can reduce the energy loss of the refrigerant, and the rotating spiral connecting piece 2 can make the refrigerant in the electronically controlled valve generate a vortex, enabling the refrigerant to flow more quickly and improving the fluidity of the refrigerant flow.

[0041] The thickness of the spiral connecting piece 2 gradually decreases radially outwards, thereby reducing the resistance of the spiral connecting piece 2 to the entry of the refrigerant and reducing the energy loss of the refrigerant. Both the air inlet 3 and the air outlet 4 are provided along the tangential direction of the valve body 6, so that the entering refrigerant can better fit the rotation angle of the spiral connecting piece 2, enabling the refrigerant to more conveniently perform vortex motion in the electronically controlled valve.

[0042] Three sealing rings 12 are sleeved on the valve body 6. The three sealing rings 12 are used to seal both sides of the air inlet 3 and the air outlet 4. A sealing ring groove 18 for sleeving the sealing rings 12 is provided on the valve body 6. A plurality of rotating pieces 19 are rotatably connected to the side wall of the sealing ring groove 18. A compression spring 20 for driving the rotating disk 16 to abut tightly against the sealing ring 12 is fixed to the side wall of the sealing ring groove 18, so that the sealing ring 12 can be better pressed, improving the sealing performance of the electronically controlled valve when closed.

[0043] The connecting component includes a rotating shaft 14 rotatably connected inside the valve stem 5. One side of the rotating shaft 14 close to the spiral connecting piece 2 is connected thereto. One side of the generator 10 close to the valve body 6 is rotatably connected with a rotating sleeve 9. A connecting hole 24 inserted with the rotating shaft 14 is provided inside the rotating sleeve 9. A connecting retaining piece 25 is fixed on the outer wall of the rotating shaft 14, and a connecting retaining groove 26 inserted and matched with the connecting retaining piece 25 is axially provided on the inner wall of the connecting hole 24 along its axis. Thus, the generator 10 can be better driven to generate electricity, and the convenience of connecting the spiral connecting piece 2 and the generator 10 is improved.

[0044] One end of the spiral connecting piece 2 close to the valve stem 5 is fixed with a rotating disc 16. A plurality of spiral connecting pieces 2 are all fixed on the rotating disc 16. One end of the rotating shaft 14 is fixed on the rotating disc 16. A limiting disc 23 is in threaded fit connection with the rotating shaft 14. The limiting disc 23 abuts against the side of the valve stem 5 away from the spiral connecting piece 2. A rotary bearing 22 is installed between the limiting disc 23 and the valve stem 5. The rotary bearing 22 is a flat thrust ball bearing, so that the spiral connecting piece 2 can rotate more smoothly.

[0045] A sealing ring 17 is fixed between the rotating disc 16 and the valve stem 5. The sealing ring 17 is made of a rubber component with strong elasticity. A sealing groove clamped and matched with the sealing ring 17 is provided on one side of the rotating disc 16 close to the valve stem 5. The sealing groove is arranged close to the edge of the rotating disc 16. Thus, when the spiral connecting piece 2 is extruded by the refrigerant or the spiral connecting piece 2 is pushed to move towards the direction close to the pressure-sensitive bellows 1, the sealing ring 17 can be extruded to abut against the inner wall of the valve body 6, improving the sealing performance inside the valve body 6.

[0046] A guide rod 31 coaxially arranged with the valve hole 13 is rotatably connected inside the valve body 6. The guide rod 31 is a cylindrical rod. A sliding cavity 15 is formed between a plurality of spiral connecting pieces 2. A guide groove slidably matched with the spiral connecting piece 2 is spirally provided on the outer wall of the guide rod 31. When the valve stem 5 closes the valve hole 13, the guide rod 31 abuts against the rotating disc 16, so that the moving distance of the valve stem 5 can be better limited, and the convenience of using the valve stem 5 is improved.

[0047] The implementation principle of an electronic control valve of an automotive air conditioner compressor in an embodiment of the present application is as follows: during operation, the electronic control valve is installed, so that the refrigerant flows through the spiral connecting piece 2 from the air inlet 3 and is finally discharged from the air outlet 4, thereby realizing the flow of the refrigerant. When the refrigerant flows, the spiral connecting piece 2 can rotate under the action of the pressure difference between the air inlet 3 and the air outlet 4, and drive the motor to generate electricity. Cooperating with the rotating spiral connecting piece 2 can play a role in guiding the refrigerant, and during the rotation process, it can play a role in sucking the refrigerant, making the refrigerant flow more smoothly; during the rotation process of the spiral connecting piece 2, it can also cooperate with the generator 10 to generate electricity, improving the convenience of energy recovery and utilization of the electronic control valve.

[0048] Embodiment 2

[0049] Reference Figure 5 , the difference between this embodiment and Embodiment 1 is that two clamping rings 30 are integrally formed on the side wall of the valve body 6. The clamping rings 30 are coaxially arranged with the valve body 6. The two clamping rings 30 are used to limit the insertion depth of the electric control valve pair. The two clamping rings 30 are arranged near both ends of the valve body 6, so as to close the air inlet 3 and the air outlet 4. The sealing ring groove 18 is formed on the clamping ring 30. A plurality of telescopic grooves connected to the sealing ring groove 18 are formed on the side of the clamping ring 30 away from the generator 10. A telescopic block 29 is slidably connected in the telescopic groove. When the electric control valve is installed, the telescopic block 29 is pushed to move closer to the sealing ring 12. A sliding arc piece 27 is fixed on the side of the telescopic block 29 close to the sealing ring 12. A rotating groove 28 is formed on the side of the sliding arc piece 27 close to the sealing ring 12. When the sliding arc piece 27 is pushed out, the rotating piece 19 abuts against the rotating groove 28. A limiting guide block 32 is fixed on the side of the sliding arc piece 27 away from the sealing ring 12. A limiting guide groove 33 for inserting and cooperating with the limiting guide block 32 is formed on the side wall of the sealing ring groove 18 to improve the smoothness of the sliding of the sliding arc piece 27.

[0050] The implementation principle of Embodiment 2 is as follows: When the electric control valve is installed, the sliding arc piece 27 is pushed to move closer to the sealing ring 12. The sliding arc piece 27 and the rotating piece 19 are used in cooperation to better push the sealing ring 12 to move outwards, so that the sealing ring 12 can be more fully tightened, and the sealing performance of the electric control valve can be improved.

[0051] The above are all the preferred embodiments of this application. The protection scope of this application is not limited by this. Therefore, all equivalent changes made according to the structure, shape and principle of this application should be covered within the protection scope of this application.

Claims

1. An electronically controlled valve for an automotive air conditioner compressor, characterized in that: It includes a valve body (6), a valve rod (5), a pressure-sensitive bellows (1), an electromagnetic coil (8) and a moving slider (7). A plurality of air inlets (3) and a plurality of air outlets (4) are formed on the side wall of the valve body (6). A valve hole (13) inserted and matched with the valve rod (5) is formed in the valve body (6). The valve rod (5) is used to block the valve hole (13). A plurality of spiral connecting pieces (2) are rotatably connected to one side of the valve rod (5) close to the pressure-sensitive bellows (1). The plurality of spiral connecting pieces (2) are arranged in a circumferential array. The spiral connecting piece (2) is spirally arranged in a direction away from the valve rod (5). A generator (10) is arranged on one side of the valve body (6) away from the pressure-sensitive bellows (1). A connecting component is arranged between the generator (10) and the spiral connecting piece (2). The spiral connecting piece (2) is used to drive the generator (10).

2. The electronic control valve for an automotive air conditioning compressor according to claim 1, wherein: The connecting component includes a rotating shaft (14) rotatably arranged in the valve rod (5). One side of the rotating shaft (14) close to the spiral connecting piece (2) is connected to it. A rotating sleeve (9) is rotatably connected to one side of the generator (10) close to the valve body (6). A connecting hole (24) inserted and matched with the rotating shaft (14) is formed in the rotating sleeve (9). A connecting stop piece (25) is arranged on the outer wall of the rotating shaft (14). A connecting stop groove (26) slidably matched with the connecting stop piece (25) is formed in the inner wall of the connecting hole (24) along its axis direction.

3. The electronic control valve of an automotive air conditioner compressor according to claim 2, characterized in that: A rotating disc (16) is arranged at one end of the spiral connecting piece (2) close to the valve rod (5). The plurality of spiral connecting pieces (2) are all fixed on the rotating disc (16). One end of the rotating shaft (14) is fixed on the rotating disc (16). A limiting disc (23) is in threaded fit with the rotating shaft (14). The limiting disc (23) abuts against one side of the valve rod (5) away from the spiral connecting piece (2). A rotating bearing (22) is arranged between the limiting disc (23) and the valve rod (5).

4. The electronic control valve of an automotive air conditioner compressor according to claim 3, wherein: A sealing ring (17) is arranged between the rotating disc (16) and the valve rod (5). A sealing groove clamped and matched with the sealing ring (17) is formed on one side of the rotating disc (16) close to the valve rod (5). The sealing groove is arranged close to the edge of the rotating disc (16).

5. The electronic control valve of an automotive air-conditioning compressor according to claim 1, characterized in that: The thickness of the spiral connecting piece (2) gradually decreases radially outwards.

6. The electronic control valve for an automotive air conditioning compressor according to claim 1, wherein: Both the air inlet (3) and the air outlet (4) are formed along the tangent direction of the valve body (6).

7. The electronic control valve for an automotive air-conditioning compressor according to claim 1, characterized in that: A guide rod (31) coaxial with the valve hole (13) is rotatably arranged in the valve body (6). A sliding cavity (15) is formed between the plurality of spiral connecting pieces (2). A guide groove slidably matched with the spiral connecting piece (2) is spirally formed on the outer wall of the guide rod (31). When the valve rod (5) blocks the valve hole (13), the guide rod (31) abuts against the rotating disc (16).

8. The electronic control valve of an automotive air conditioner compressor according to claim 1, characterized in that: A plurality of sealing rings (12) are provided on the valve body (6). The plurality of sealing rings (12) are arranged on both sides of the air inlet (3) and the air outlet (4). A sealing ring groove (18) sleeved with the sealing ring (12) is formed on the valve body (6). A plurality of rotating pieces (19) are rotatably connected to the side wall of the sealing ring groove (18). A compression spring (20) for driving the rotating piece (19) to abut against the sealing ring (12) is arranged on the side wall of the sealing ring groove (18).

9. The electronic control valve of an automotive air conditioner compressor according to claim 8, characterized in that: Two clamping rings (30) are arranged on the side wall of the valve body (6). The clamping rings (30) are used to limit the insertion depth of the electric control valve. The two clamping rings (30) are arranged near the two ends of the valve body (6). The sealing ring groove (18) is formed on the clamping ring (30). A plurality of expansion slots communicating with the sealing ring groove (18) are formed on the side of the clamping ring (30) away from the generator (10). An expansion block (29) is slidably arranged in the expansion slot. When the electric control valve is installed, the expansion block (29) is pushed to move towards the sealing ring (12).

10. The electronic control valve of an automotive air conditioning compressor according to claim 9, characterized in that: A sliding arc piece (27) is arranged on the side of the expansion block (29) close to the sealing ring (12). A rotating groove (28) is formed on the side of the sliding arc piece (27) close to the sealing ring (12). When the sliding arc piece (27) is pushed out, the rotating piece (19) abuts against the rotating groove (28). A limiting guide block (32) is arranged on the side of the sliding arc piece (27) away from the sealing ring (12). A limiting guide groove (33) inserted and matched with the limiting guide block (32) is formed on the side wall of the sealing ring groove (18).

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