A solenoid valve for a compressor and a compressor

Abstract

The application discloses a compressor electromagnetic valve and a compressor. The compressor electromagnetic valve comprises a valve body component, a main valve core component and a one-way valve core component. The valve body component comprises a main valve cavity and a secondary valve cavity. The main valve core component is located in the main valve cavity, and the one-way valve core component is located in the secondary valve cavity. The main valve cavity is in communication with the secondary valve cavity. The valve body component comprises an air inlet part, an air outlet part, a main valve port part and a one-way valve port part. The one-way valve core component comprises a one-way valve core and an elastic piece. The valve body component comprises a limiting step. One end of the elastic piece is in abutment with the limiting step, and the other end is in abutment with the one-way valve core. The outer side wall of the one-way valve core and the cavity wall of the secondary valve cavity comprise a flow channel. When the compressor electromagnetic valve is powered, the main valve core component is in abutment with the main valve port part. The application further discloses a compressor system. The compressor electromagnetic valve of the application can satisfy two kinds of cold capacity modes of the compressor, with the one-way valve core component located in the secondary valve cavity to block the air inlet part, and the main valve core component located in the main valve cavity to block the air outlet part.

Description

Technical Field

[0001] This application relates to the field of refrigeration technology, and more particularly to a solenoid valve for a compressor and a compressor. Background Technology

[0002] The scroll compressor 01 of the relevant technology, when the system requires a large cooling capacity, all of the compressor 01's discharge volume participates in the work, ensuring the stability of the large cooling capacity output. When the system does not require a large cooling capacity, a portion of the compressed gas from the compressor 01 needs to be separated through a channel. By setting a one-way valve 03 inside the compressor and an external solenoid valve 02, the refrigerant enters the return gas end for recompression, and the compressor's discharge volume can be reduced as needed. Summary of the Invention

[0003] This application provides a solenoid valve for a compressor, comprising a valve body component, a main valve core component, and a one-way valve core component. The valve body component includes a main valve chamber and a secondary valve chamber. The main valve core component is located in the main valve chamber, and the one-way valve core component is located in the secondary valve chamber. The main valve chamber and the secondary valve chamber communicate with each other. The valve body component includes an inlet portion, an outlet portion, a main valve port portion, and a one-way valve port portion. The one-way valve core component includes a one-way valve core and an elastic element. The valve body component includes a limiting step, and one end of the elastic element is connected to the limiting step. The limiting step abuts, and the other end of the elastic element abuts against the one-way valve core. The one-way valve core can abut against the one-way valve port to block the communication between the air inlet and the auxiliary valve chamber. The outer wall of the one-way valve core or the cavity wall of the auxiliary valve chamber includes a flow passage, or a flow passage is included between the outer wall of the one-way valve core and the cavity wall of the auxiliary valve chamber. When the compressor solenoid valve is energized, the main valve core component can abut against the main valve port to block the communication between the main valve chamber and the air outlet.

[0004] The solenoid valve for compressors in this application has a main valve core component located in the main valve chamber, which can open and close the main valve port. The one-way valve core is located in the auxiliary valve chamber and can block the flow at the air inlet. The one-way valve core is located at the air inlet and can prevent gas from the air outlet from entering the air inlet, that is, prevent gas backflow.

[0005] This application provides a compressor, including a compressor solenoid valve and a support plate. The compressor solenoid valve is fixedly connected to the support plate. The support plate includes a vent hole, with at least a portion of the air inlet located within the vent hole. The vent hole communicates with the air inlet. The compressor also includes a return air chamber, with the air outlet of the compressor solenoid valve communicating with the return air chamber. When the compressor solenoid valve is energized, the compressor is in a first operating state, with the main valve core component abutting against and blocking the air outlet. When the compressor solenoid valve is de-energized, the compressor is in a second operating state, with the main valve core component moving away from the main valve outlet and opening the air outlet. The main valve chamber communicates with the air outlet, the one-way valve core component moving away from the one-way valve outlet, the air inlet communicating with the air outlet, and the vent hole communicating with the return air chamber. The valve body component also includes a sealing ring and a sealing groove. The sealing groove is located on the outer side wall of the valve body component, and the sealing ring is partially located in the sealing groove. The sealing ring abuts against the outer side wall of the valve body component and abuts against the wall of the vent hole.

[0006] The compressor described in this application, by employing the aforementioned compressor solenoid valve, can achieve two functional modes. When the compressor solenoid valve is energized, the compressor is in full-capacity cooling mode: the main valve core component blocks the outlet, preventing some of the compressed gas from entering the return chamber through the compressor solenoid valve. In this mode, all the gas discharged from the compressor participates in work, ensuring stable high-capacity output. When the compressor solenoid valve is de-energized, the compressor is in partial-capacity cooling mode: a portion of the compressed gas enters the return chamber through the compressor solenoid valve, separating some gas, which then circulates back into the compressor for recompression, reducing the compressor's discharge volume and thus reducing the system's cooling capacity.

[0007] This application provides another type of compressor, including a compressor solenoid valve and a support plate. The compressor solenoid valve includes a valve body component, a main valve core component, and a one-way valve core component. The valve body component includes a main valve chamber and a secondary valve chamber. The main valve core component is located in the main valve chamber, and the one-way valve core component is located in the secondary valve chamber. The main valve chamber and the secondary valve chamber communicate with each other. The valve body component includes an inlet portion, an outlet portion, a main valve port portion, and a one-way valve port portion. The one-way valve core component includes a one-way valve core, which can abut against the one-way valve port portion to block the communication between the inlet portion and the secondary valve chamber. The outer wall of the one-way valve core or the cavity wall of the secondary valve chamber includes a flow channel, or a flow channel is included between the outer wall of the one-way valve core and the cavity wall of the secondary valve chamber. The compressor solenoid valve is fixedly connected to the support plate, and the support plate includes a vent hole. At least part of the inlet end is located in the vent hole. The vent hole is connected to the air inlet. The compressor also includes a return air chamber. The air outlet of the compressor solenoid valve is connected to the return air chamber. When the compressor solenoid valve is energized, the compressor is in a first operating state, and the main valve core component abuts against the main valve port to block the air outlet. When the compressor solenoid valve is de-energized, the compressor is in a second operating state, the main valve core component moves away from the main valve port, and the air outlet is opened. The main valve chamber is connected to the air outlet. The one-way valve core component moves away from the one-way valve port, and the air inlet is connected to the air outlet. The vent hole is connected to the return air chamber. The valve body component also includes a sealing ring and a sealing groove. The sealing groove is located on the outer side wall of the valve body component, and the sealing ring is partially located in the sealing groove. The sealing ring abuts against the outer side wall of the valve body component and abuts against the wall of the vent hole.

[0008] The compressor of this application, by employing the aforementioned compressor solenoid valve, can achieve two functional modes. When the compressor solenoid valve is energized, the compressor is in full-capacity cooling mode: the main valve core component blocks the outlet, preventing some of the compressed gas from entering the return chamber through the compressor solenoid valve. At this time, all the gas discharged by the compressor participates in the work, ensuring the stability of the large cooling output. When the compressor solenoid valve is de-energized, the compressor is in partial-capacity cooling mode: a portion of the compressed gas enters the return chamber through the compressor solenoid valve, separating some gas, which then circulates back into the compressor for recompression, reducing the compressor's discharge volume and thus reducing the system's cooling capacity.

[0009] Figure 1 A schematic diagram of a compressor for background art;

[0010] Figure 2 This is a cross-sectional schematic diagram of the solenoid valve for a compressor of the present invention when the one-way valve core closes the auxiliary valve port when the power is cut off;

[0011] Figure 3 for Figure 2 A schematic diagram of a localized explosion;

[0012] Figure 4 for Figure 2 A cross-sectional view of the first valve body;

[0013] Figure 5 for Figure 2 A cross-sectional view of the second valve body;

[0014] Figure 6 for Figure 2 Cross-sectional view along direction A;

[0015] Figure 7A for Figure 2 Cross-sectional schematic diagram of the main valve core sealing assembly;

[0016] Figure 7B for Figure 7A A cross-sectional view of the bushing from one direction;

[0017] Figure 7C for Figure 7A A bottom view of the middle bushing;

[0018] Figure 8 for Figure 2 Cross-sectional view of the main valve core;

[0019] Figure 9 for Figure 2 A three-dimensional structural diagram of the one-way valve core;

[0020] Figure 10 This is a partial cross-sectional view of a compressor according to the present invention;

[0021] Figure 11 for Figure 2 The diagram shows a cross-sectional view of the compressor solenoid valve when it is energized.

[0022] Figure 12 A cross-sectional schematic diagram of yet another embodiment of a solenoid valve for an inventive compressor;

[0023] Figure 13 for Figure 12 A cross-sectional view of the second valve body;

[0024] Figure 14A This is a front view schematic diagram of the solenoid valve for the compressor in Embodiment 1;

[0025] Figure 14B This is a rear view schematic diagram of the solenoid valve for the compressor in Embodiment 1;

[0026] Figure 14CThis is a bottom view schematic diagram of the appearance of the solenoid valve for the compressor in Embodiment 1;

[0027] Figure 14D This is a top view schematic diagram of the solenoid valve for the compressor in Embodiment 1;

[0028] Figure 14E This is a left-side view of the solenoid valve for the compressor in Embodiment 1;

[0029] Figure 14F This is a right-side view of the solenoid valve for the compressor in Embodiment 1;

[0030] Figure 14G This is a three-dimensional schematic diagram of the appearance of the solenoid valve for the compressor in Embodiment 1.

[0031] Figure 15A This is a front view schematic diagram of the solenoid valve for the compressor in Embodiment 2;

[0032] Figure 15B This is a rear view schematic diagram of the solenoid valve for the compressor in Embodiment 2;

[0033] Figure 15C This is a schematic diagram of the left-side appearance of the solenoid valve for the compressor in Embodiment 2;

[0034] Figure 15D This is a right-side view of the solenoid valve for the compressor in Embodiment 2;

[0035] Figure 15E This is a bottom view schematic diagram of the appearance of the solenoid valve for the compressor in Embodiment 2;

[0036] Figure 15F This is a top view schematic diagram of the solenoid valve for the compressor in Embodiment 2;

[0037] Figure 15G This is a three-dimensional schematic diagram of the appearance of the solenoid valve for the compressor in Embodiment 2.

[0038] 1. Valve body components; 100. Main valve chamber; 200. Secondary valve chamber; 11. Air inlet; 12. Air outlet; 14. First valve body; 141. Main valve port; 142. First connecting part; 143. Third connecting part; 145. Protrusion; 1421. First step; 1422. First step surface; 1431. Third step; 15. Second valve body; 151. One-way valve port; 152. Second connecting part; 1521. Second step; 1522. Second step surface; 153. Cylinder; 1531. Cylinder cavity; 1532. Mounting plate; 1533. Mounting through hole; 16. Limiting step; 17. Sealing groove; 18. Sealing ring;

[0039] 2. Pilot valve assembly; 21. Moving iron core assembly; 23. Sleeve assembly; 24. Limiting retaining ring;

[0040] 3. Main valve core assembly; 31. Main valve core; 311. Pilot valve port; 312. Connecting protrusion; 313. Pilot flow path; 32. Main valve core sealing assembly; 321. Bushing; 322. Sealing plug; 3211. Connecting through hole; 3212. Reinforced through hole; 3213. Connecting groove; 3214. Reinforced step; 3221. Upper sealing part; 3222. Lower sealing part; 3223. Sealing rib;

[0041] 4. One-way valve core assembly; 41. One-way valve core; 411. Base; 412. Guide claw; 413. Flow passage; 414. Straight wall section; 415. Arc section; 416. Guide arc section; 42. Elastic element;

[0042] 14A, First valve body; 144A, Side cylinder section; 1441A, Side cylinder cavity; 142A, First connecting part; 1432A, Mounting plate section; 1433A, Mounting through hole; 152A, Second connecting part; 15A, Second valve body; 1521A, Second step section; 1522A, Second step surface; 151A, One-way valve port section;

[0043] 300, Support plate; 310, Vent hole; 400, Return air chamber; 500, Solenoid valve for compressor.

[0044] To make the objectives, technical solutions, and advantages of this invention clearer, the embodiments of this application will be further described below with reference to the accompanying drawings.

[0045] See Figure 1 , Figure 2 and Figure 3The compressor solenoid valve 500 includes a valve body component 1, a pilot valve component 2, a main valve core component 3, and a one-way valve core component 4. The pilot valve component 2 is connected to the valve body component 1 for limiting. The valve body component 1 includes a main valve chamber 100 and a secondary valve chamber 200. The main valve core component 3 is located in the main valve chamber 100, and the one-way valve core component 4 is located in the secondary valve chamber 200. The main valve chamber 100 and the secondary valve chamber 200 are connected. The valve body component 1 includes an inlet portion 11, an outlet portion 12, a main valve port portion 141, and a one-way valve port portion 151. The one-way valve core component 4 includes a one-way valve core 41 and an elastic element 42. When the compressor solenoid valve is de-energized, the one-way valve core 41 can abut against the one-way valve port portion 151 under the action of the elastic element 42. Valve body component 1 includes a limiting step 16. One end of the elastic element 42 abuts against the limiting step 16, and the other end of the elastic element 42 abuts against the one-way valve core 41. It should be noted that the elastic element 42 can be a spring, a wave spring, a bellows, or other parts with elastic support. In this application, the elastic element 42 is a spring. The outer wall of the one-way valve core 41 or the cavity wall of the secondary valve chamber 200 includes a flow passage 413, or a flow passage 413 is included between the outer wall of the one-way valve core 41 and the cavity wall of the secondary valve chamber 200. That is, the flow passage 413 can be provided on the outer wall of the one-way valve core 41, or on the cavity wall of the secondary valve chamber 200, or the flow passage 413 can be formed by combining the outer wall of the one-way valve core 41 and the cavity wall of the secondary valve chamber 200. In this application, the outer wall of the valve core 41 and the cavity wall of the secondary valve chamber 200 include the flow passage 413. At the instant the one-way valve core 41 opens, gas can enter the secondary valve chamber 200 through the flow passage 413, connecting with the main valve chamber 100, allowing the pressure in the secondary valve chamber 200 to quickly reach equilibrium and smoothly open the valve. When the compressor solenoid valve 500 is energized, the main valve core component 3 abuts against the main valve port 141, closing the main valve port 141. At this time, the outlet port 12 is not connected to the main valve chamber 100. Depending on the gas pressure, the inlet port 11 may be connected to the secondary valve chamber 200, or it may not be connected. Specifically: if the gas pressure entering the inlet port 11 is higher than the pressure in the secondary valve chamber 200, the one-way valve core 41 can be lifted away from the one-way valve port 151, and the gas enters the secondary valve chamber 200. However, since the main valve port 141 is closed by the main valve core component 3, the gas cannot enter the outlet port 12 through the main valve port 141. Conversely, if the gas pressure entering through the inlet 11 is lower than the sum of the pressure in the secondary valve chamber 200 and the elastic force of the elastic element 42, then the one-way valve core 41 will remain in contact with the one-way valve port 151, that is, the one-way valve core 41 will close the one-way valve port 151, preventing gas from entering the secondary valve chamber 200.

[0046] like Figure 2As shown, valve body component 1 includes a first valve body 14 and a second valve body 15, which are fixedly connected. In this embodiment, they are specifically welded together. The first valve body 14 includes the aforementioned main valve port 141. When the compressor solenoid valve 500 is energized, the main valve core component 3 abuts against the main valve port 141 to block the connection between the main valve chamber 100 and the outlet port 12. The second valve body 15 includes the aforementioned one-way valve port 151. The one-way valve core 41 can abut against the one-way valve port 151 to block the connection between the auxiliary valve chamber 200 and the inlet port 11. It should be noted that when the main valve core component 3 closes the main valve port 141, gas cannot be discharged from the main valve chamber 100 through the main valve port 141. Therefore, whether the one-way valve core 41 abuts against the one-way valve port 151 does not affect the gas discharge. To more clearly show the overall appearance of this embodiment, Figure 14A This is a front view schematic diagram of the solenoid valve for the compressor in Embodiment 1. Figure 14B This is a rear view schematic diagram of the solenoid valve for the compressor in Embodiment 1. Figure 14C This is a bottom view schematic diagram of the appearance of the solenoid valve for the compressor in Embodiment 1. Figure 14D This is a top view schematic diagram of the solenoid valve for the compressor in Embodiment 1. Figure 14E This is a left-side view of the solenoid valve for the compressor in Embodiment 1. Figure 14F This is a right-side view of the solenoid valve for the compressor in Embodiment 1. Figure 14G This is a three-dimensional schematic diagram of the appearance of the solenoid valve for the compressor in Embodiment 1.

[0047] like Figure 4 , Figure 5As shown, the first valve body 14 includes a first connecting portion 142, the second valve body 15 includes a second connecting portion 152, the first valve body 14 includes a protrusion 145 protruding toward the second valve body 15, the first connecting portion 142 is located at the end of the protrusion 145, the first connecting portion 142 includes a first step portion 1421, and the first step surface 1422 of the first step portion 1421 faces the second valve body 15. The second valve body 15 includes a cylindrical portion 153, a second connecting portion 152, and a cylindrical cavity 1531 connected to the main valve cavity 100. A one-way valve core component 4 is located in the cylindrical cavity 1531, which serves as part of the secondary valve cavity 200. The second connecting portion 152 is located at one end of the cylindrical portion 153 away from the one-way valve port 151. The second connecting portion 152 includes a second stepped portion 1521, with the second stepped surface 1522 facing the first valve body 14. The second connecting portion 152 is fixedly connected to the first connecting portion 142. Specifically, the second stepped surface 1522 abuts against and is welded to the end face of the first connecting portion 142, while the first stepped surface 1422 does not contact the end face of the second connecting portion 152. This configuration reduces processing difficulty and improves processing efficiency. The end of the second valve body 15 away from the second connecting part 152 serves as the air inlet part 11. The cylinder part 153 also includes a mounting plate part 1532, which includes a mounting through hole 1533. The mounting through hole 1533 is mainly used for fastener installation and fixing such as screws or bolts. It should be noted that, in order to improve stability and installation reliability, the number of mounting through holes 1533 can be set to one or more. Furthermore, along the longitudinal direction of the compressor solenoid valve 500, the projection of the mounting through hole 1533 is located outside the projection outline of the first valve body 14. This setting can improve the operability of installation.

[0048] like Figure 12 , Figure 13The image shows another embodiment of the solenoid valve 500 for a compressor according to this application. In this embodiment, a valve body component 1A is included, which includes a first valve body 14A and a second valve body 15A. The first valve body 14A includes a side cylinder portion 144A, which includes a side cylinder cavity 1441A. The side cylinder cavity 1441A communicates with the main valve cavity 100. A one-way valve core component 4 is located in the side cylinder cavity 1441A and reciprocates within the side cylinder cavity 1441A. The side cylinder cavity 1441A serves as a secondary valve cavity 200. The side cylinder portion 144A includes a first connecting portion 142A, which is located at the end of the side cylinder portion 144A away from the main valve cavity 100. Specifically, the first connecting portion 142A is located below the sealing ring 18 described below. The second valve body 15A includes a second connecting portion 152A. One end of the second valve body 15A serves as the second connecting portion 152A, and the other end serves as the air inlet portion 11. The second connecting portion 152A is fixedly connected to the first connecting portion 142A. Specifically, the second connecting portion 152A includes a second stepped portion 1521A, which includes a second stepped surface 1522A. The second stepped surface 1522A abuts against and is welded to the end face of the first connecting portion 142A. With this configuration, the side cylinder cavity 1441A serves as the secondary valve cavity 200, providing movement space for the one-way valve core component 4. The entire secondary valve cavity 200 is integrally formed. The outer wall of the one-way valve core component 4 slides with a clearance fit to the inner wall of the secondary valve cavity 200. The one-way valve core component 4 is guided by the same part, which improves the operational reliability of the one-way valve core component 4. The side cylinder portion 144A also includes a mounting plate portion 1432A, which includes a mounting through hole 1433A. One end of the second valve body 15A includes a one-way valve port portion 151A, and the end of the second valve body 15A away from the one-way valve port portion 151A serves as an air inlet portion 11. That is, one end of the second valve body 15A includes the one-way valve port portion 151A, and the other end of the second valve body 15A includes the air inlet portion 11. To more clearly show the overall appearance of this embodiment... Figure 15A This is a front view schematic diagram of the solenoid valve for the compressor in Embodiment 2. Figure 15B This is a rear view schematic diagram of the solenoid valve for the compressor in Embodiment 2. Figure 15C This is a left-side view of the solenoid valve for the compressor in Embodiment 2. Figure 15D This is a right-side view of the solenoid valve for the compressor in Embodiment 2. Figure 15E This is a bottom view schematic diagram of the solenoid valve for the compressor in Embodiment 2. Figure 15F This is a top view schematic diagram of the solenoid valve for the compressor in Embodiment 2. Figure 15G This is a three-dimensional schematic diagram of the appearance of the solenoid valve for the compressor in Embodiment 2.

[0049] like Figure 2 , Figure 7A ,7B 7C Figure 8 , Figure 9 As shown, the main valve core component 3 includes a main valve core 31 and a main valve core sealing assembly 32. The main valve core sealing assembly 32 is fixedly connected to the main valve core 31. This fixed connection can be welding or riveting. In this application, the main valve core sealing assembly 32 is fixed to the main valve core 31 by riveting. The main valve core sealing assembly 32 includes a bushing 321 and a sealing plug 322. The bushing 321 includes a connecting through hole 3211 and a reinforcing through hole 3212. The main valve core 31 includes a connecting protrusion 312, part of which is located in the connecting through hole 3212. The connecting protrusion 312 is fixedly connected to the bushing 321. Specifically, the end of the connecting protrusion 312 is fixedly connected to the bushing 321 by riveting. The sealing plug 322 includes an upper sealing part 3221 and a lower sealing part 3222. The upper sealing part 3221 can abut against the main valve core 31 for sealing, and the lower sealing part 3222 can abut against the main valve port 141 for sealing. The sealing plug 322 is located in the reinforcing through hole 3211. The sealing plug 322 and the bushing 321 are vulcanized and fixed. In this application, the sealing plug 322 is specifically made of rubber, and the bushing 321 is made of metal. The rubber material and the metal bushing 321 are formed into the main valve core sealing assembly 32 through vulcanization. That is to say, the sealing plug 322 is formed by vulcanizing rubber material inside the bushing 321. With this arrangement, on the one hand, the metal bushing 321 can ensure the strength and reliability of the main valve core sealing assembly 32 and improve the service life of the product; on the other hand, the rubber sealing plug 322 can improve the sealing performance of the product.

[0050] Furthermore, the bushing 321 also includes a connecting groove 3213, which is an annular groove. The opening of the connecting groove 3213 faces the main valve port 141. The reinforcing through hole 3212 is connected to the connecting groove 3213. The longitudinal plane of the compressor solenoid valve 500 is defined as the projection plane. The projection of the hole wall of the reinforcing through hole 3212 is located within the projection range of the groove wall of the connecting groove 3213. That is to say, the position of the reinforcing through hole 3212 is within the connecting groove 3213. This setting is to improve the bonding strength between the sealing plug 322 and the bushing 321. Thus, during use, after the main valve core component 3 and the main valve port 141 abut against and seal repeatedly, the main valve core sealing component 32 still ensures reliability, and the sealing plug 322 does not fall off, thereby improving the sealing performance and service life of the product. Furthermore, there are at least two reinforcing through holes 3212, which are evenly distributed around the outer periphery of the connecting through hole 3211. The even distribution of multiple reinforcing through holes 3212 also aims to improve the reliability of the sealing plug 322. The lower sealing portion 3222 is located within the connecting groove 3213, and the bushing 321 also includes a reinforcing step 3214. The upper sealing portion 3221 is located within the reinforcing step 3214. With this configuration, one end of the bushing 321 includes the annular connecting groove 3213, and the other end includes the reinforcing step 3214. The sealing plug 322, through the reinforcing through holes 3212, partially fills the connecting groove 3213 at the lower end and partially fills the reinforcing step 3214 at the upper end, ensuring that both the upper and lower sides of the main valve core sealing assembly 32 have a complete ring of sealing material. Furthermore, before the main valve core sealing assembly 32 is riveted to the main valve core 31, the upper sealing portion 3221 includes a sealing rib 3223. Along the transverse direction of the compressor solenoid valve 500, the sealing rib 3223 is higher than the end face of the reinforcing step 3214. This arrangement can further ensure the abutment seal between the upper sealing part 3221 and the main valve core 31 after the main valve core sealing assembly 32 is riveted to the main valve core 31, thereby increasing the sealing reliability between the sealing plug 322 and the main valve core 31.

[0051] As shown in Figure 2, Figure 4 , Figure 8As shown, the pilot valve component 2 includes a moving iron core component 21 and a sleeve component 23. The first valve body 14 includes a third connecting portion 143, which includes a third step portion 1431. The sleeve component 23 directly or indirectly abuts against the third step portion 1431. In one embodiment of this application, the pilot valve component 2 further includes a limiting retaining ring 24, located at the third step portion 1431. One end face of the limiting retaining ring 24 abuts against and limits the third step portion 1431, while the other end face of the limiting retaining ring 24 is limited by the sleeve component 23. The sleeve component 23 is fixedly connected to the third connecting portion 1433, specifically by welding. Part of the end face of the limiting retaining ring 24 that abuts against the third step portion 1431 limits its movement, while another part can abut against the main valve core component 3 to restrict its displacement away from the main valve port. The main valve core 31 also includes a pilot valve port 311 and a pilot flow path 313. The pilot flow path 313 is connected to the air outlet 12. The moving iron core component 21 can abut against the pilot valve port 311 to block the pilot flow path 313.

[0052] like Figure 6 , Figure 9 As shown, the one-way valve core 41 includes a base portion 411 and a guide claw portion 412. The base portion 411 is rectangular plate-shaped. The outer wall of the base portion 411 includes four straight wall sections 414. An arc section 415 is included between two adjacent straight wall sections 414. The arc section 415 slides with the cavity wall of the secondary valve chamber 200. A flow passage 413 is included between the straight wall section 414 and the cavity wall of the secondary valve chamber 200. The guide claw portion 412 protrudes towards the first valve body 14 relative to the base portion 411. The outer wall of the guide claw portion 412 includes a guide arc section 416. The guide arc section 416 slides with the cavity wall of the secondary valve chamber 200. The inner wall of the guide claw portion 412 cooperates with the elastic element 42. The inner wall of the guide claw portion 412 can provide a guiding effect on the elastic element 42. The guide claw portion 412 is provided to improve the stability of the sliding engagement of the one-way valve core 41 in the secondary valve cavity 200, and to provide installation space and support for the elastic element 42. One end of the elastic element 42 abuts against the base portion 411, and the other end of the elastic element 42 abuts against the limiting step 16. The inner sidewall of the guide claw portion 412 restricts the circumferential displacement of the elastic element 42, thereby improving the assembly stability of the elastic element 42.

[0053] like Figure 2 , Figure 10As shown, a compressor according to this application includes a compressor solenoid valve 500 and a support plate 300. The compressor solenoid valve 500 is fixedly connected to the support plate 300. Specifically, the mounting plate portion 1532 is fixed to the support plate 300 by standard bolts or screws. The support plate 300 includes a vent hole 310, and the air inlet portion 11 is at least partially located in the vent hole 310, communicating with the air inlet portion 11. The compressor also includes a return air chamber 400, and the air outlet portion 12 of the compressor solenoid valve 500 communicates with the return air chamber 400. When the compressor solenoid valve 500 is energized, the compressor is in a first working state, with the main valve core component 3 abutting against the main valve port portion 141, and the main valve core component 3 blocking the air outlet portion 12. This working state of the compressor is a full-capacity cooling mode, in which all the air discharged by the compressor participates in the work, ensuring stable high-capacity cooling output. When the compressor solenoid valve 500 is de-energized, the compressor is in its second operating state. The main valve core component 3 moves away from the main valve port 141, opening the outlet port 12. The main valve chamber 100 is connected to the outlet port 12. Part of the compressed gas from the compressor opens the one-way valve core component 4 through the vent 310. The vent 310 is connected to the return gas chamber 400 via the compressor solenoid valve 500's inlet, main valve port, and outlet. This part of the gas is not considered as the compressor's exhaust flow. In this operating state, part of the compressed gas from the compressor enters the secondary valve chamber 200 through the vent 310 opening the one-way valve core component 4. The secondary valve chamber 200 is connected to the main valve chamber 100. At this time, the main valve core component 3 moves away from the main valve port 141, the main valve chamber 100 is connected to the outlet port 12, and the outlet port 12 is connected to the return gas chamber 400. Part of the compressed gas from the compressor circulates back into the compressor for recompression, which can reduce the compressor's exhaust volume and thus reduce the system's cooling capacity. The valve body component 1 also includes a sealing groove 17 and a sealing ring 18. The sealing groove 17 is located on the outer side wall of the valve body component 1, and the sealing ring 18 is partially located in the sealing groove 17. The sealing ring 18 blocks the gap channel between the outer side wall of the valve body component 1 and the inner wall of the vent 310.

[0054] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A solenoid valve for a compressor, characterized in that, The valve body includes a valve body assembly, a main valve core assembly, and a one-way valve core assembly. The valve body assembly includes a main valve chamber and a secondary valve chamber. The main valve core assembly is located in the main valve chamber, and the one-way valve core assembly is located in the secondary valve chamber. The main valve chamber and the secondary valve chamber communicate with each other. The valve body assembly includes an air inlet, an air outlet, a main valve port, and a one-way valve port. The one-way valve core assembly includes a one-way valve core and an elastic element. The valve body assembly includes a limiting step, and one end of the elastic element abuts against the limiting step. The other end of the elastic element abuts against the one-way valve core, which can abut against the one-way valve port to block the communication between the air inlet and the secondary valve chamber; the outer wall of the one-way valve core or the cavity wall of the secondary valve chamber includes a flow passage, or a flow passage is included between the outer wall of the one-way valve core and the cavity wall of the secondary valve chamber; when the compressor solenoid valve is energized, the main valve core component can abut against the main valve port to block the communication between the main valve chamber and the air outlet.

2. The solenoid valve for a compressor according to claim 1, characterized in that, The valve body component includes a first valve body and a second valve body. The first valve body and the second valve body are fixedly connected. The first valve body includes a main valve port and an air outlet. The second valve body includes a one-way valve port and an air inlet. The one-way valve core can abut against the one-way valve port to block the communication between the secondary valve chamber and the air inlet.

3. The solenoid valve for a compressor according to claim 2, characterized in that, The first valve body includes a first connecting portion, the second valve body includes a second connecting portion, the second valve body includes a cylindrical portion, the cylindrical portion includes the second connecting portion and a cylindrical cavity, the cylindrical cavity is connected to the main valve cavity, the one-way valve core component is partially located in the cylindrical cavity, the cylindrical cavity serves as part of the secondary valve cavity, and the second connecting portion is fixedly connected to the first connecting portion.

4. The solenoid valve for a compressor according to claim 2, characterized in that, The first valve body includes a first connecting portion, the second valve body includes a second connecting portion, the second valve body includes a cylindrical portion, the cylindrical portion includes the second connecting portion and a cylindrical cavity, the cylindrical cavity is connected to the main valve cavity, the one-way valve core component is partially located in the cylindrical cavity, the cylindrical cavity serves as part of the secondary valve cavity, the second connecting portion is fixedly connected to the first connecting portion, and the outer wall of the cylindrical portion also includes a mounting plate portion, the mounting plate portion includes a mounting through hole.

5. The solenoid valve for a compressor according to claim 2, characterized in that, The first valve body includes a side cylinder portion, the side cylinder portion includes a side cylinder cavity, the side cylinder cavity is in communication with the main valve cavity, the one-way valve core component is located in the side cylinder cavity, the side cylinder cavity serves as the secondary valve cavity, the side cylinder portion includes a first connecting portion, the first connecting portion is located at the end of the side cylinder portion away from the main valve cavity, the second valve body includes a second connecting portion, one side end of the second valve body serves as the second connecting portion, the other side end of the second valve body serves as the air inlet portion, the second connecting portion is fixedly connected to the first connecting portion, the second valve body includes a one-way valve port portion, the one-way valve port portion is located in the side cylinder cavity.

6. The solenoid valve for a compressor according to claim 2, characterized in that, The first valve body includes a side cylinder portion, which includes a side cylinder cavity that communicates with the main valve cavity. The one-way valve core component is located in the side cylinder cavity, which serves as the secondary valve cavity. The side cylinder portion includes a first connecting portion located at the end of the side cylinder portion away from the main valve cavity. The second valve body includes a second connecting portion, with one end of the second valve body serving as the second connecting portion and the other end of the second valve body serving as the air inlet portion. The second connecting portion is fixedly connected to the first connecting portion. The second valve body includes a one-way valve port portion located in the side cylinder cavity. The outer wall of the side cylinder portion also includes a mounting plate portion, which includes a mounting through hole.

7. The solenoid valve for a compressor according to any one of claims 1-6, characterized in that, The main valve core component includes a main valve core and a main valve core sealing assembly. The main valve core sealing assembly is fixedly connected to the main valve core. The main valve core sealing assembly includes a bushing and a sealing plug. The bushing includes a connecting through hole and a reinforcing through hole. The main valve core includes a connecting protrusion, which is located in the connecting through hole and is fixedly connected to the bushing. The sealing plug is located in the reinforcing through hole and includes an upper sealing part and a lower sealing part. The upper sealing part is located on the upper side of the reinforcing through hole and can abut against the main valve core for sealing. The lower sealing part is located on the lower side of the reinforcing through hole and is annular. The lower sealing part can abut against the main valve port for sealing. At the moment the one-way valve core opens, the flow passage, the secondary valve chamber, and the main valve chamber are connected.

8. The solenoid valve for a compressor according to claim 7, characterized in that, The bushing also includes a connecting groove, which is an annular groove with its opening facing the main valve port. The reinforcing through hole is located in the connecting groove. The longitudinal plane of the compressor solenoid valve is defined as the projection plane. The projection of the hole wall of the reinforcing through hole is located within the projection range of the groove wall of the connecting groove. There are at least two reinforcing holes, which are evenly distributed around the outer periphery of the connecting through hole. The sealing plug is located in the connecting groove. The bushing also includes a reinforcing step, and the sealing plug is located on the reinforcing step.

9. The solenoid valve for a compressor according to any one of claims 2-8, characterized in that, It also includes a pilot valve component, which includes a moving iron core component and a sleeve component. The first valve body includes a third connecting portion, which includes a third step portion. The sleeve component directly or indirectly abuts against the third step portion and is fixedly connected to the step portion. The main valve core also includes a pilot valve port and a pilot flow path. The pilot flow path communicates with the air outlet portion. The moving iron core component can abut against the pilot valve port to block the pilot flow path. The pilot valve component also includes a limiting retaining ring, which is located at the third step portion. One end face of the limiting retaining ring abuts against the main valve core component, and the other end face of the limiting retaining ring abuts against the sleeve component for limiting.

10. The solenoid valve for a compressor according to claim 9, characterized in that, The one-way valve core includes a base portion and a guide claw portion. One end of the base portion abuts against the elastic element, and the other end of the base portion abuts against the one-way valve port portion. The outer wall of the base portion slides in engagement with the cavity wall of the secondary valve chamber. The base portion is circular plate-shaped, and the flow passage is included between the outer wall of the base portion and the cavity wall of the secondary valve chamber; or the base portion is rectangular plate-shaped, and the outer wall of the base portion includes four straight wall segments, with an arc segment between two adjacent straight wall segments. The arc segment slides in engagement with the cavity wall of the secondary valve chamber, and the flow passage is included between the straight wall segment and the cavity wall of the secondary valve chamber. The guide claw portion protrudes towards the first valve body relative to the base portion. The outer wall of the guide claw portion includes a guide arc segment, which slides in engagement with the cavity wall of the secondary valve chamber. The inner wall of the guide claw portion engages with the elastic element.

11. A compressor, comprising a compressor solenoid valve as described in any one of claims 1-10, and a support plate, wherein the compressor solenoid valve is fixedly connected to the support plate, the support plate includes a vent hole, at least a portion of the air inlet end is located in the vent hole, the vent hole communicates with the air inlet portion, the compressor further includes a return air chamber, the air outlet portion of the compressor solenoid valve communicates with the return air chamber, wherein when the compressor solenoid valve is energized, the compressor is in a first operating state, and the main valve core component abuts against and blocks the air outlet portion; when the compressor solenoid valve is de-energized, the compressor is in a second operating state, the main valve core component moves away from the main valve port portion, opening the air outlet portion, the main valve chamber communicates with the air outlet portion, the one-way valve core component moves away from the one-way valve port portion, the air inlet portion communicates with the air outlet portion, and the vent hole communicates with the return air chamber.

12. The compressor according to claim 11, characterized in that, The valve body component also includes a sealing ring and a sealing groove. The sealing groove is located on the outer side wall of the valve body component, and the sealing ring is partially located in the sealing groove. The sealing ring abuts against the outer side wall of the valve body component and abuts against the wall of the vent hole.

13. A compressor, comprising a compressor solenoid valve and a support plate, wherein the compressor solenoid valve comprises a valve body component, a main valve core component, and a one-way valve core component; the valve body component comprises a main valve chamber and a secondary valve chamber; the main valve core component is located in the main valve chamber; the one-way valve core component is located in the secondary valve chamber; the main valve chamber and the secondary valve chamber communicate with each other; the valve body component comprises an inlet portion, an outlet portion, a main valve port portion, and a one-way valve port portion; the one-way valve core component comprises a one-way valve core, the one-way valve core being capable of abutting against the one-way valve port portion to block the communication between the inlet portion and the secondary valve chamber; the outer wall of the one-way valve core or the cavity wall of the secondary valve chamber comprises a flow passage, or a flow passage is included between the outer wall of the one-way valve core and the cavity wall of the secondary valve chamber; the compressor solenoid valve is fixedly connected to the support plate, the support plate comprising a vent hole, the inlet end being at least partially located in the vent hole, the vent hole being... The compressor includes a return air chamber, and the outlet of the compressor solenoid valve is connected to the return air chamber. When the compressor solenoid valve is energized, the compressor is in a first operating state, and the main valve core component abuts against the main valve port to block the outlet. When the compressor solenoid valve is de-energized, the compressor is in a second operating state, the main valve core component moves away from the main valve port, and the outlet is opened. The main valve chamber is connected to the outlet. The one-way valve core component moves away from the one-way valve port, and the inlet and outlet are connected. The vent hole is connected to the return air chamber. The valve body component also includes a sealing ring and a sealing groove. The sealing groove is located on the outer wall of the valve body component, and the sealing ring is partially located in the sealing groove. The sealing ring abuts against the outer wall of the valve body component and abuts against the wall of the vent hole.

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