Adjusting device of scroll compressor and scroll compressor

Abstract

The application relates to the technical field of scroll compression equipment, in particular to a regulating device of a scroll compressor and the scroll compressor. The regulating device comprises a temperature sensing unit and a transmission unit. The temperature sensing unit comprises a temperature sensing bag. The temperature sensing bag is arranged at an air inlet position of the scroll compressor. The temperature sensing bag is used for sensing temperature changes of an air suction port of the compressor. The transmission unit comprises a pressing sheet. The pressing sheet is connected with the temperature sensing bag. The temperature sensing bag can control movement of the pressing sheet. An elastic piece is connected to the pressing sheet. The pressing sheet is connected with a static scroll of the scroll compressor through the elastic piece. The application has the effect of improving the efficiency of the regulating device of the scroll compressor and the scroll compressor during use.

Description

Technical Field

[0001] This application relates to the field of scroll compressor equipment technology, and in particular to a regulating device for a scroll compressor and a scroll compressor. Background Technology

[0002] A scroll compressor is a positive displacement compressor whose compression component consists of a moving scroll and a stationary scroll meshing together. The relative motion between the two achieves progressive compression of the gas. It is widely used in household air conditioning, commercial refrigeration, medical cold chain and other fields.

[0003] Traditional digital scroll compressors use an axial flexible mechanism controlled by a solenoid valve to achieve continuous stepless adjustment of the compressor output capacity through periodic loading and unloading. The unloading and loading cycle is 0.5-1 seconds / time. The continuous switching action generates some noise, and the gap for establishing the gas bypass channel is more than 1mm.

[0004] This adjustment method not only generates significant noise pollution, affecting the user experience, but also limits its applicability, especially in noise-sensitive scenarios such as home and medical settings. Furthermore, the large gap in the gas bypass channel results in low adjustment accuracy, making it difficult to precisely match the cooling needs under different operating conditions, which can easily lead to energy waste and fail to meet the current development needs of high-efficiency and quiet equipment. Utility Model Content

[0005] In order to improve the regulating device of the scroll compressor and the efficiency of the scroll compressor during use, this application provides a regulating device for the scroll compressor and a scroll compressor.

[0006] This application provides a regulating device for a scroll compressor and a scroll compressor, adopting the following technical solution: A regulating device for a scroll compressor and a scroll compressor, comprising a temperature sensing unit and a transmission unit, wherein the temperature sensing unit includes a temperature sensing bulb disposed at the air inlet of the scroll compressor, the temperature sensing bulb being used to sense temperature changes at the compressor suction port, and the transmission unit including a pressure guiding block and a ring body connected to the scroll compressor, the temperature sensing bulb being connected to the pressure guiding block, and a piston rod connected to a stationary scroll being slidably mounted on the ring body.

[0007] By adopting the above technical solution, the temperature sensing bulb can capture the temperature changes at the compressor's suction port in real time, converting the temperature signal into a physical signal that can be responded to by the subsequent transmission unit. The pressure guide block, as an intermediate transmission component, can convert the signal transmitted by the temperature sensing bulb into a pressure change, and then convert the pressure change into a force on the stationary vortex through the piston rod on the ring body, thereby adjusting the position of the stationary vortex and controlling the sealing state and gas bypass volume of the compression chamber. This eliminates the need for the periodic switching action of the solenoid valve, structurally reducing noise generation. At the same time, it enables more precise gap control, improves adjustment accuracy, adapts to the refrigeration needs under different operating conditions, reduces energy waste, and improves the overall operating efficiency of the compressor.

[0008] In one specific implementation, the pressure guiding block has a first pressure chamber, a second pressure chamber, and a third pressure chamber. The first pressure chamber is connected to the second pressure chamber and the third pressure chamber, respectively. The temperature sensing bulb is connected to the second pressure chamber. A first pressure plug, a second pressure plug, and a third pressure plug are slidably connected inside the pressure guiding block. The first pressure plug is installed in the first pressure chamber, the second pressure plug is installed in the second pressure chamber, and the third pressure plug is installed in the third pressure chamber. The second pressure plug is connected to the first pressure plug, and the third pressure plug is also connected to the first pressure plug.

[0009] By adopting the above technical solution, the combined structure of multiple pressure chambers and the piston forms a stable force transmission path. The temperature sensing bulb converts temperature changes into pressure changes within the second pressure chamber, which in turn pushes the second piston to move. Since the second piston is connected to the first piston, its movement causes the first piston to move synchronously, which in turn drives the third piston to move within the third pressure chamber, thus transmitting pressure from the second to the third pressure chamber. This linkage structure ensures the stability and accuracy of the temperature signal to pressure signal conversion, avoiding the jamming or signal distortion problems that may occur with single piston transmission, and providing a reliable pressure foundation for subsequent precise control of the piston rod.

[0010] In one specific implementation, the first pressing cavity, the second pressing cavity, and the third pressing cavity are all cylindrical cavities, and the diameter of the first pressing cavity is larger than the diameters of the second pressing cavity and the third pressing cavity.

[0011] By adopting the above technical solution, the cylindrical cavity design facilitates smooth sliding of the plug within the cavity, reducing sliding resistance or sealing failure caused by irregular cavity shape. Simultaneously, the diameter of the first pressing chamber is larger than that of the second and third pressing chambers, resulting in a larger force-bearing area for the first plug compared to the second and third plugs. According to the principle of force transmission, when the second plug is pushed by a smaller pressure, the area amplification effect of the first plug can convert this into a larger pushing or pulling force at the third plug, achieving pressure amplification. Therefore, when the temperature sensing bulb detects a slight temperature change, this structure can generate a pressure change sufficient to drive the piston rod, improving the sensitivity of the regulating device to temperature changes and further optimizing the regulating accuracy.

[0012] In one specific implementation, the ring body is provided with a first pressure guiding hole and a fourth pressure pushing cavity. The first pressure guiding hole is connected to the fourth pressure pushing cavity, and the first pressure guiding hole is connected to a third pressure pushing cavity. The piston rod is inserted into the fourth pressure pushing cavity and slidably connected to the ring body.

[0013] By adopting the above technical solution, the first pressure guide hole enables pressure communication between the third and fourth pressure chambers, allowing pressure changes generated by the movement of the third pressure plug to be transmitted to the fourth pressure chamber through the first pressure guide hole. The piston rod is inserted into the fourth pressure chamber and slidably connected to the ring body, so that pressure changes in the fourth pressure chamber can be directly converted into axial thrust or pull on the piston rod, thereby driving the stationary vortex connected to the piston rod to move. This structure completes a closed loop of pressure transmission from the pressure guide block to the stationary vortex, ensuring that the temperature signal sensed by the temperature sensing unit can ultimately be accurately applied to the position adjustment of the stationary vortex, realizing dynamic control of the compression chamber gap. Furthermore, the ring body provides stable mounting and sliding support for the piston rod, ensuring the stability of the adjustment process.

[0014] In one specific implementation, sealing rings are installed on the first pressure plug, the second pressure plug, the third pressure plug, and the piston rod.

[0015] By adopting the above technical solution, the sealing ring effectively enhances the sealing performance between each pressure plug and its corresponding pressure chamber, and between the piston rod and the fourth pressure chamber, preventing pressure loss or cross-contamination within the pressure chamber due to gap leakage. This avoids inaccurate pressure transmission caused by seal failure, ensuring that the pressure signal converted from temperature changes is transmitted completely and accurately to each transmission component, guaranteeing the adjustment accuracy and reliability of the regulating device, while reducing energy waste caused by gas leakage, and further improving the compressor's operating efficiency.

[0016] In one specific implementation scheme, a housing is included, on which a compression mechanism is mounted, and a rotating shaft is connected to the compression mechanism. A motor for controlling the rotation of the rotating shaft is installed inside the housing. The compression mechanism includes a stationary scroll plate, a moving scroll plate, and a support base. The support base is mounted on the housing, and the moving scroll plate is movably connected to the support base. The stationary scroll plate and the moving scroll plate mesh with each other to form a compression chamber.

[0017] By adopting the above technical solution, the housing provides a stable installation and protection space for all components of the compressor. The motor drives the rotating shaft to rotate, causing the moving scroll in the compression mechanism to move relative to the stationary scroll. Since the stationary and moving scrolls mesh to form a compression chamber, the volume of the compression chamber gradually decreases from the radially outer side to the inner side as they move relative to each other, achieving progressive compression of the gas. The support base provides reliable support for the moving scroll, ensuring its stability and accuracy during movement, and guaranteeing the sealing performance and compression efficiency of the compression chamber. Simultaneously, the compressor structure is compatible with the aforementioned adjustment device. By controlling the position of the stationary scroll through the adjustment device, the clearance of the compression chamber can be dynamically optimized, further improving the compressor's adaptability and efficiency under different operating conditions.

[0018] In one specific implementation, the support base includes a fixing block mounted on the housing. The fixing block is connected to a bearing housing via a connecting rod. A thrust plate is mounted on the bearing housing. The moving scroll is movably mounted on the bearing housing and supported by the thrust plate and the bearing housing.

[0019] In one specific implementation, a guide seat is installed on the static vortex disk, a guide groove is provided on the guide seat, and an insert rod is installed on the thrust plate, the insert rod extending into the guide groove and slidably connected to the guide seat.

[0020] By adopting the above technical solution, the cooperation between the guide seat and the insert rod forms the guiding and limiting structure of the stationary scroll plate. When the adjusting device drives the stationary scroll plate to move axially, the insert rod slides synchronously in the guide groove, providing precise guidance for the movement of the stationary scroll plate, preventing radial offset or tilting during movement, ensuring that the stationary scroll plate and the moving scroll plate always maintain the correct meshing position, and guaranteeing the sealing performance of the compression chamber. At the same time, this structure can also limit excessive movement of the stationary scroll plate, avoiding collision with the moving scroll plate or abnormal gap in the compression chamber due to excessive displacement of the stationary scroll plate, further improving the stability and safety of compressor operation.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. Quiet operation, suitable for sensitive scenarios: Abandoning the traditional solenoid valve's periodic switching adjustment method, it uses a temperature sensor to detect temperature and drive the mechanical structure transmission, with no electromagnetic switch action throughout the process, reducing noise generation at the source. It is especially suitable for noise-sensitive scenarios such as household air conditioners and medical cold chain, improving the user experience.

[0022] 2. High adjustment precision and lower energy consumption: Utilizing the stable temperature-pressure conversion characteristics of R32 refrigerant inside the temperature sensing bulb, it can capture minute temperature changes at the suction port (within the range of -30℃ to 80℃). Through the amplification effect of the pressure guide block's pressure plug area and the sealing transmission of multiple pressure chambers, it achieves precise control of the static scroll plate gap. This allows for accurate matching of refrigeration needs under different operating conditions, reducing energy waste caused by adjustment deviations and improving compressor operating efficiency. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a scroll compressor according to an embodiment of this application.

[0024] Figure 2 This is a schematic diagram of the motor in an embodiment of this application.

[0025] Figure 3 This is a schematic diagram of the compression mechanism according to an embodiment of this application.

[0026] Figure 4 This is a schematic diagram of the thrust plate according to an embodiment of this application.

[0027] Figure 5 This is a cross-sectional view of the stationary vortex disk according to an embodiment of this application.

[0028] Figure 6 This is a schematic diagram of the adjustment device according to an embodiment of this application.

[0029] Reference numerals: 1. Housing; 11. Inlet pipe; 12. Outlet pipe; 2. Compression mechanism; 21. Stationary scroll plate; 211. Stationary scroll end plate; 212. Stationary scroll blade; 214. Guide seat; 2141. Guide groove; 2331. Insert rod; 22. Moving scroll plate; 221. Moving scroll end plate; 222. Moving scroll blade; 23. Support seat; 231. Fixing block; 232. Bearing seat; 233. Thrust plate; 3. Rotating shaft; 4. Motor; 51. Temperature sensing bulb; 511, pipe; 512, pressure guide block; 5121, first pressure chamber; 5122, second pressure chamber; 5123, third pressure chamber; 5124, first pressure plug; 5125, second pressure plug; 5126, third pressure plug; 5128, first pull rod; 5129, second pull rod; 513, ring body; 5131, first pressure guide hole; 5132, fourth pressure chamber; 5133, second pressure guide hole; 514, pressure ring; 515, piston rod. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0031] This application discloses a scroll compressor, referring to... Figure 1 and Figure 2 It includes a housing 1, an air inlet pipe 11 and an air outlet pipe 12 connected to the housing 1, both of which are connected to the interior of the housing 1. A compression mechanism 2 is installed inside the housing 1, a rotating shaft 3 is connected to the compression mechanism 2, and a motor 4 that controls the rotation of the rotating shaft 3 is installed inside the housing 1.

[0032] Reference Figure 3 , Figure 4 and Figure 5 The compression mechanism 2 includes a stationary scroll 21, a moving scroll 22, and a support base 23. The support base 23 includes a fixing block 231, which is fixedly installed on the housing 1. The fixing block 231 is fixedly connected to the bearing housing 232 via a connecting rod. A thrust plate 233 is fixedly installed on the bearing housing 232. The moving scroll 22 is movably installed on the bearing housing 232 and is supported by the thrust plate 233 and the bearing housing 232. The moving scroll disk 22 consists of a moving scroll end plate 221 and a spiral moving scroll blade 222. An eccentric rod is provided on the rotating shaft 3, and the rotating shaft 3 is connected to the moving scroll disk 22 through the eccentric rod. In this embodiment, the rotating shaft 3 drives the moving scroll disk 22 through the eccentric rod, which is conventional prior art. It can be understood that the rotating shaft 3 causes the moving scroll disk 22 to rotate relative to the stationary scroll disk 21, that is, the central axis of the moving scroll disk 22 rotates around the central axis of the stationary scroll disk 21, but the moving scroll disk 22 itself does not rotate around its own central axis, thereby realizing the compression of the fluid.

[0033] The stationary vortex disk 21 is composed of a stationary vortex end plate 211 and a spiral stationary vortex blade 212. The stationary vortex disk 21 and the moving vortex disk 22 mesh with each other, thereby forming a series of compression cavities with a volume that gradually decreases from the radial outer side to the radial inner side between the stationary vortex blade 212 and the moving vortex blade 222. In this embodiment, to facilitate the identification of the internal structure of the housing 1, the partition plate separating the internal chambers of the housing 1 is omitted. The partition plate divides the housing 1 into two independent chambers. The upper part of the partition plate is the high-pressure chamber after gas compression, and the lower part of the partition plate is the low-pressure chamber for air intake. In order to achieve axial sealing between the stationary vortex blade 212 and the moving vortex end plate 221, and between the moving vortex blade 222 and the stationary vortex end plate 211, a back pressure chamber is usually provided on one side of the stationary vortex end plate 211. The pressure in the back pressure chamber can effectively press the stationary vortex disk 21 and the moving vortex disk 22 together. Using the back pressure chamber to press the stationary vortex disk 21 and the moving vortex disk 22 together is a conventional prior art in the field and does not affect the understanding of this solution. Therefore, the structure of the back pressure chamber is not shown in the accompanying drawings. When the pressure in the compression chamber between the moving scroll plate 22 and the stationary scroll plate 21 exceeds the set value, the resultant force generated by the pressure in these compression chambers will exceed the downward pressure provided in the back pressure chamber, causing the stationary scroll plate 21 to move upward. At this time, the fluid in the compression chamber will leak to the low-pressure side of the compressor through the gap between the top of the stationary scroll blade 212 and the moving scroll end plate 221, and the gap between the top of the moving scroll blade 222 and the stationary scroll end plate 211, so as to achieve unloading, thereby providing axial flexibility for the scroll compressor.

[0034] A guide seat 214 is fixedly installed on the static vortex disk 21. A guide groove 2141 is opened on the guide seat 214. A plug rod 2331 is fixedly installed on the thrust plate 233. The plug rod 2331 extends into the guide groove 2141 and is slidably connected with the guide seat 214.

[0035] Reference Figure 1 , Figure 3 and Figure 6 This application also provides an adjustment device, which consists of a temperature sensing unit and a transmission unit. The temperature sensing unit includes a temperature sensing bulb 51, which is fixedly installed on the air inlet pipe 11 outside the housing 1. In this embodiment, the temperature sensing bulb 51 is the prior art. The temperature sensing bulb 51 is filled with a temperature sensing medium, which is one of liquid, solid or gas-liquid mixture. The temperature sensing bulb 51 can sense the temperature change of the compressor suction port. A pipe 511 is connected to the temperature sensing bulb 51.

[0036] The transmission unit includes a pressure guide block 512, which is fixedly installed on the outer side wall of the housing 1. The pressure guide block 512 has a first pressure chamber 5121, a second pressure chamber 5122, and a third pressure chamber 5123. The first pressure chamber 5121 is connected to the second pressure chamber 5122 and the third pressure chamber 5123 respectively. The first pressure chamber 5121, the second pressure chamber 5122, and the third pressure chamber 5123 are all cylindrical cavities. The diameter of the first pressure chamber 5121 is larger than the diameter of the second pressure chamber 5122 and the third pressure chamber 5123. The pipe 511 is connected to the second pressure chamber 5122. The pressure guide block 512 has a first pressure plug 5124, a second pressure plug 5125 and a third pressure plug 5126 slidably connected inside. The first pressure plug 5124 is installed in the first pressure chamber 5121, the second pressure plug 5125 is installed in the second pressure chamber 5122, and the third pressure plug 5126 is installed in the third pressure chamber 5123. The second pressure plug 5125 is connected to the first pressure plug 5124 through the first pull rod 5128, and the third pressure plug 5126 is connected to the first pressure plug 5124 through the second pull rod 5129.

[0037] A ring 513 is fixedly installed on the inner wall of the housing 1. The ring 513 has a first pressure guiding hole 5131 and a fourth pressure chamber 5132. The first pressure guiding hole 5131 communicates with the fourth pressure chamber 5132. A hole is provided on the housing 1 to connect the first pressure guiding hole 5131 with the third pressure chamber 5123. A pressure ring 514 is fixedly installed on the stationary vortex end plate 211. Eight piston rods 515 are arranged in a circular pattern at equal angles on the pressure ring 514. In this embodiment, the ring 513 has eight fourth pressure chambers 5132 corresponding to the piston rods 515. The piston rods 515 are all inserted into the fourth pressure chambers 5132 and slidably connected to the ring 513. The ring 513 has a second pressure guiding hole 5133 that connects the eight fourth pressure chambers 5132. In this embodiment of the application, sealing rings are installed on the first pressure plug 5124, the second pressure plug 5125, the third pressure plug 5126, and the piston rod 515.

[0038] In this embodiment, the temperature sensing bulb 51 is made of copper shell and filled with R32 refrigerant gas-liquid mixture. Its temperature-pressure conversion coefficient is stable and covers the operating temperature range of the scroll compressor in the range of -30℃ to 80℃, and can capture the suction temperature fluctuation.

[0039] After the scroll compressor starts, the motor 4 drives the rotating shaft 3 to rotate, and the eccentric rod drives the moving scroll plate 22 to rotate around the stationary scroll plate 21. The fluid enters the compression chamber from the inlet pipe 11, and after being gradually compressed, it is discharged from the outlet pipe 12. At the same time, the temperature sensing bulb 51 monitors the temperature of the inlet pipe 11 and the temperature around the inlet pipe 11 in real time. When the ambient temperature rises and the cooling capacity needs to be increased: the suction temperature rises, the heated refrigerant in the temperature sensing bulb 51 vaporizes and the volume increases, and the gas enters the second pressure chamber 5122 through the pipe 511. The gas pressure on the right side of the second pressure plug 5125 increases, thereby pushing the second pressure plug 5125 and the first pressure plug 5124 to the left. When the first pressure plug 5124 moves, it drives the third pressure plug 5126 to move to the left. At this time, the air pressure on the side of the third pressure chamber 5123 connected to the first pressure guide hole 5131 decreases, and the air pressure in the fourth pressure chamber 5132 decreases, thereby generating a downward pulling force on the piston rod 515. When the stationary scroll plate 21 is depressurized, the pressure in the compression chamber needs to overcome the pressure in the back pressure chamber and the pulling force generated by the fourth pressure chamber 5132. Secondly, when there is a gap between the stationary scroll plate 21 and the moving scroll plate 22, the piston rod 515 pulls the stationary scroll plate 21 to move towards the moving scroll plate 22, thereby reducing the gap, reducing gas bypass, and increasing the cooling capacity.

[0040] When the ambient temperature decreases and the cooling capacity needs to be reduced: the temperature at the intake pipe 11 drops, the refrigerant in the temperature sensing bulb 51 liquefies due to the cold, and its volume decreases. The gas pressure on the right side of the second pressure plug 5125 decreases, thereby pulling the second pressure plug 5125 and the first pressure plug 5124 to the right. The first pressure plug 5124 drives the third pressure plug 5126 to the right. At this time, the gas pressure on the side of the third pressure chamber 5123 connected to the first pressure guide hole 5131 increases, and the gas pressure in the fourth pressure chamber 5132 increases, thereby generating an upward thrust on the piston rod 515. This reduces the pressure that the stationary scroll plate 21 needs to overcome when depressurizing, thereby increasing the gas bypass and reducing the cooling capacity.

[0041] By utilizing the temperature sensing bulb 51, the entire process is conducted without the need for solenoid valve switching, achieving silent operation, which is superior to solenoid valve control technology and helps improve the performance of the scroll compressor.

[0042] The implementation principle of this application embodiment is as follows: Motor 4 drives rotating shaft 3 to rotate, which in turn drives moving scroll 22 to move around stationary scroll 21 via eccentric rod, causing the volume of the compression chamber formed by their meshing to gradually change, thereby achieving gas compression. Simultaneously, temperature sensing bulb 51 senses the inlet temperature in real time, converting the vapor-liquid changes of the internal refrigerant into a pressure signal. This signal is transmitted to the fourth pressure chamber 5132 of the ring body via multiple pressure plugs in pressure guide block 512, thereby driving piston rod 515 to move stationary scroll 22 axially, dynamically adjusting the gap between stationary scroll 22 and moving scroll 21. When the temperature rises, the gap narrows to reduce gas bypass and increase cooling capacity; when the temperature falls, the gap widens to increase gas bypass and reduce cooling capacity. No solenoid valve action is required throughout the process, achieving quiet and precise adjustment, improving the compressor's operating efficiency and adaptability to different operating conditions.

[0043] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A regulating device for a scroll compressor, characterized in that: The device includes a temperature sensing unit and a transmission unit. The temperature sensing unit includes a temperature sensing bulb (51) which is located at the air inlet of the scroll compressor. The temperature sensing bulb (51) is used to sense the temperature change at the air inlet of the compressor. The transmission unit includes a pressure guiding block (512) and a ring (513) connected to the scroll compressor. The temperature sensing bulb (51) is connected to the pressure guiding block (512). A piston rod (515) connected to the stationary scroll is slidably mounted on the ring (513).

2. The regulating device for a scroll compressor according to claim 1, characterized in that: The pressure guiding block (512) has a first pressure chamber (5121), a second pressure chamber (5122), and a third pressure chamber (5123). The first pressure chamber (5121) is connected to the second pressure chamber (5122) and the third pressure chamber (5123), respectively. The temperature sensing bulb (51) is connected to the second pressure chamber (5122). A first pressure plug (5124) and a second pressure plug (5125) are slidably connected inside the pressure guiding block (512). The first pressure plug (5124) is installed in the first pressure chamber (5121), the second pressure plug (5125) is installed in the second pressure chamber (5122), and the third pressure plug (5126) is installed in the third pressure chamber (5123). The second pressure plug (5125) is connected to the first pressure plug (5124), and the third pressure plug (5126) is also connected to the first pressure plug (5124).

3. The regulating device for a scroll compressor according to claim 2, characterized in that: The first pressing cavity (5121), the second pressing cavity (5122) and the third pressing cavity (5123) are all cylindrical cavities. The diameter of the first pressing cavity (5121) is larger than the diameters of the second pressing cavity (5122) and the third pressing cavity (5123).

4. The regulating device for a scroll compressor according to claim 2, characterized in that: The ring (513) is provided with a first pressure guiding hole (5131) and a fourth pressure pushing cavity (5132). The first pressure guiding hole (5131) is connected to the fourth pressure pushing cavity (5132), and the first pressure guiding hole (5131) is connected to the third pressure pushing cavity (5123). The piston rod (515) is inserted into the fourth pressure pushing cavity (5132) and slidably connected to the ring (513).

5. The regulating device for a scroll compressor according to claim 4, characterized in that: A sealing ring is installed on the first pressure plug (5124), the second pressure plug (5125), the third pressure plug (5126), and the piston rod (515).

6. A scroll compressor for mounting the regulating device according to any one of claims 1-5, characterized in that: The device includes a housing (1), on which a compression mechanism (2) is mounted, and a rotating shaft (3) is connected to the compression mechanism (2). A motor (4) for controlling the rotation of the rotating shaft (3) is installed inside the housing (1). The compression mechanism (2) includes a stationary scroll plate (21), a moving scroll plate (22), and a support base (23). The support base (23) is mounted on the housing (1), and the moving scroll plate (22) is movably connected to the support base (23). The stationary scroll plate (21) and the moving scroll plate (22) mesh with each other to form a compression chamber.

7. A scroll compressor according to claim 6, characterized in that: The support base (23) includes a fixing block (231), which is mounted on the housing (1). The fixing block (231) is connected to the bearing seat (232) via a connecting rod. A thrust plate (233) is mounted on the bearing seat (232). The moving scroll plate (22) is movably mounted on the bearing seat (232). The moving scroll plate (22) is supported by the thrust plate (233) and the bearing seat (232).

8. A scroll compressor according to claim 7, characterized in that: A guide seat (214) is installed on the static vortex disk (21), and a guide groove (2141) is provided on the guide seat (214). A plug rod (2331) is installed on the thrust plate (233), and the plug rod (2331) extends into the guide groove (2141) and is slidably connected to the guide seat (214).

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