Compression mechanism, compressor and air conditioner

Abstract

The utility model provides a compressing mechanism, a compressor and an air conditioner, and the compressing mechanism comprises a static disc, an air inlet and an air outlet, a compression cavity is defined by the movable disc and the static disc, and the compression cavity communicates with the exhaust port; the supporting frame is arranged on the side, away from the static disc, of the movable disc and connected with the static disc, the movable disc, the static disc and the supporting frame define a back pressure cavity, and the back pressure cavity communicates with the compression cavity; the first sealing piece is arranged at the joint of the supporting frame and the static disc and used for sealing the back pressure cavity, effectively prevents high-pressure gas in the exhaust cavity from leaking into the back pressure cavity through the joint of the supporting frame and the static disc, and avoids the situation that due to the fact that the high-pressure gas leaks into the back pressure cavity, the pressure in the back pressure cavity is increased, and the friction force of the contact face between the movable disc and the static disc is increased. And the service life of the compression mechanism is prolonged, and the reliability of the compression mechanism is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor equipment, in particular to a compression mechanism, a compressor and an air conditioner. Background Art

[0002] At present, in the scroll compressor of the related art, the fixed scroll plate and the main frame are generally connected by bolts, that is, the fixed scroll plate and the main frame are locked by bolts between the high-pressure chamber and the medium-pressure chamber so that the contact surfaces of the two are fully in contact to achieve sealing.

[0003] This sealing method has high requirements on the surface accuracy of the contact surface between the fixed scroll and the main frame, which increases the cost of the scroll compressor. In addition, it is easy for the high-pressure chamber to leak into the medium-pressure chamber, which increases the pressure in the medium-pressure chamber, increases the contact stress between the fixed scroll and the orbiting scroll, increases the wear of the disk surface, and increases the power consumption of the scroll compressor, reducing energy efficiency. Utility Model Content

[0004] The embodiments of the utility model are intended to solve at least one of the technical problems existing in the prior art.

[0005] To this end, a first aspect of an embodiment of the utility model provides a compression mechanism.

[0006] A second aspect of an embodiment of the utility model provides a compressor.

[0007] A third aspect of the embodiments of the present utility model provides an air conditioner.

[0008] In view of this, according to the first aspect of an embodiment of the utility model, a compression mechanism is provided, which includes: a static plate, which is provided with an exhaust port; a moving plate, which is enclosed with the static plate to form a compression chamber, and the compression chamber is connected to the exhaust port; a support frame, which is arranged on the side of the moving plate away from the static plate and is connected to the static plate, and the moving plate, the static plate and the support frame are enclosed to form a back pressure chamber, and the back pressure chamber is connected to the compression chamber; a first sealing member is arranged at the connection between the support frame and the static plate, and is used to seal the back pressure chamber.

[0009] The compression mechanism provided by the embodiment of the utility model includes a static plate, a dynamic plate, a support frame and a first seal. Specifically, the dynamic plate and the static plate enclose a compression chamber. Optionally, the compressor also includes a motor and a crankshaft, and the crankshaft is connected to the motor and the dynamic plate. Specifically, under the drive of the motor, the crank pin (eccentric shaft) of the crankshaft drives the dynamic plate to rotate relative to the static plate.

[0010] The stationary disk is provided with an exhaust port, which is connected to the compression chamber, and the exhaust chamber of the compressor is connected to the exhaust port. It is understandable that the compression mechanism also includes an air intake port, which is connected to the compression chamber. Specifically, the refrigerant is sucked into the compression chamber from the air intake port, and the refrigerant sucked into the compression chamber is compressed during the translational rotation of the moving disk relative to the stationary disk. Since the back pressure chamber is connected to the compression chamber, a part of the gas enters the back pressure chamber through the back pressure channel on the moving disk, and the remaining gas continues to be compressed in the compression chamber. When the compressed gas reaches the exhaust pressure, it is discharged through the exhaust port and enters the exhaust chamber.

[0011] The support frame is arranged on a side of the moving disk away from the static disk, and the support frame is connected to the static disk. It can be understood that the support frame is used to support the moving disk.

[0012] The static plate, the moving plate and the support frame together form a back-pressure chamber. Since the gas in the compression chamber can enter the back-pressure chamber, the back-pressure chamber is formed into a medium-pressure chamber with a certain pressure. During the operation of the compressor, due to the existence of the back-pressure chamber, an axial thrust toward the static plate, that is, an upward supporting force, can be generated on the moving plate, thereby improving the sealing between the static plate and the moving plate and improving the energy efficiency of the compressor.

[0013] Moreover, since the back pressure chamber can generate an axial thrust toward the static plate on the moving plate, the contact between the moving plate and the support frame can be reduced, thereby reducing the wear between the moving plate and the support frame and extending the service life of the compressor.

[0014] It can be understood that the pressure in the exhaust chamber is greater than the pressure in the back pressure chamber, that is, the exhaust chamber is a high pressure chamber, and the exhaust chamber and the back pressure chamber are separated by the connection between the static plate and the support frame. If the high temperature and high pressure gas in the high pressure chamber leaks into the back pressure chamber through the connection between the static plate and the support frame, it will cause the pressure in the back pressure chamber to increase, increase the axial thrust on the moving plate, and increase the contact stress of the contact surface between the static plate and the moving plate, increase the wear of the contact surface, and reduce the service life of the compression mechanism. Moreover, the increase in the pressure in the back pressure chamber will also increase the power consumption of the compressor and reduce the energy efficiency of the compressor.

[0015] The first sealing member is arranged at the connection between the support frame and the stator plate to seal the connection between the support frame and the stator plate, thereby sealing the back pressure chamber, effectively preventing the high-pressure gas in the exhaust chamber from leaking into the back pressure chamber through the connection between the support frame and the stator plate, and avoiding the pressure in the back pressure chamber from increasing due to the leakage of high-pressure gas into the back pressure chamber, resulting in an increase in the friction force of the contact surface between the moving plate and the stator plate, thereby causing the problem of increased wear, thereby extending the service life and reliability of the compression mechanism.

[0016] Moreover, it can also reduce the risk of increased power loss caused by increased pressure in the back-pressure chamber due to leakage of high-pressure gas into the back-pressure chamber, which is beneficial to improving the energy efficiency of the compressor.

[0017] In addition, compared with the related art of making the contact surface between the frame and the stationary scroll disk fully contact to achieve sealing, it is beneficial to reduce the surface accuracy requirements of the contact surface between the support frame and the stationary disk, thereby helping to reduce the production cost of the compressor.

[0018] Optionally, the first sealing member includes a sealing ring or a sealing gasket.

[0019] In addition, the compression mechanism provided by the above technical solution of the utility model also has the following additional technical features:

[0020] In some technical solutions, optionally, the stator disk is provided with a recessed portion, and the support frame is provided with a connecting portion, and the connecting portion is inserted into the recessed portion along the axial direction of the stator disk and connected to the stator disk; wherein at least part of the first seal is provided between the groove wall of the recessed portion and the connecting portion.

[0021] In this technical solution, it is defined that the static disk is provided with a recessed portion, specifically, the support frame is provided with a connecting portion, and the connecting portion is inserted into the recessed portion along the axial direction of the static disk, and the connecting portion is connected to the static disk. By providing the recessed portion, it is beneficial to increase the contact area between the static disk and the connecting portion, improve the sealing effect of the connection between the static disk and the support frame, further prevent the high-temperature and high-pressure gas in the exhaust cavity from leaking into the back pressure cavity through the connection between the static disk and the connecting portion, extend the service life of the compression mechanism, and improve the reliability and energy efficiency of the compressor.

[0022] In addition, the recessed portion is provided to facilitate positioning during installation of the compression mechanism, thereby improving the installation efficiency of the compression mechanism. Moreover, the stator disc can be limited in radial direction, thereby improving the installation stability of the stator disc and thus improving the reliability of the compressor.

[0023] At least a portion of the first seal is disposed between the groove wall of the recessed portion and the connecting portion, thereby sealing the connection between the support frame and the static disk, effectively preventing the high-pressure gas in the exhaust chamber from leaking into the back-pressure chamber through the connection between the support frame and the static disk, and avoiding the problem of increased wear due to the increase in the friction force of the contact surface between the moving disk and the static disk caused by the leakage of high-pressure gas into the back-pressure chamber, thereby extending the service life and reliability of the compression mechanism. Moreover, it can also reduce the risk of increased power loss caused by the increase in the pressure in the back-pressure chamber caused by the leakage of high-pressure gas into the back-pressure chamber, which is beneficial to improving the energy efficiency of the compressor.

[0024] In addition, compared with the related art of making the contact surface between the frame and the stationary scroll disk fully contact to achieve sealing, it is beneficial to reduce the surface accuracy requirements of the contact surface between the support frame and the stationary disk, thereby helping to reduce the production cost of the compressor.

[0025] In some technical schemes, optionally, the recessed portion includes a first groove wall and a second groove wall, the first groove wall being closer to the back pressure chamber than the second groove wall; wherein at least a portion of the first seal is disposed between the first groove wall and the connecting portion; and / or at least a portion of the first seal is disposed between the second groove wall and the connecting portion.

[0026] In this technical solution, it is defined that the recessed portion includes a first groove wall and a second groove wall. Specifically, the first groove wall is closer to the back pressure cavity than the second groove wall, that is, the first groove wall is located radially inward of the second groove wall.

[0027] At least a portion of the first seal is disposed between the first groove wall and the connecting portion, or at least a portion of the first seal is disposed between the second groove wall and the connecting portion, or the number of the first seals is at least two, at least one first seal is disposed between the first groove wall and the connecting portion, and at least one first seal is disposed between the second groove wall and the connecting portion. The specific configuration can be based on actual needs.

[0028] By arranging a first seal between the first groove wall and the connecting portion, and / or arranging a first seal between the second groove wall and the connecting portion, the sealing effect of the connection between the stator disk and the support frame can be improved, thereby preventing the high-temperature and high-pressure gas in the exhaust chamber from leaking into the back-pressure chamber through the connection between the stator disk and the support frame, reducing the wear between the contact surfaces of the moving disk and the stator disk, and improving the energy efficiency and reliability of the compressor.

[0029] Optionally, the first groove wall is connected to the second groove wall to enclose and form a recessed portion.

[0030] In some technical solutions, optionally, when at least a portion of the first sealing member is disposed between the first groove wall and the connecting portion, a side surface of the connecting portion facing the second groove wall is in contact with the second groove wall.

[0031] In this technical solution, it is defined that at least a portion of the first seal is arranged between the first groove wall and the connecting portion. Specifically, a side of the connecting portion facing the second groove wall is in contact with the second groove wall, so that a multi-stage sealing structure can be formed between the connecting portion and the recessed portion of the stator disk, thereby further improving the sealing effect of the connection between the stator disk and the support frame, avoiding the leakage of high-temperature and high-pressure gas in the exhaust chamber into the back-pressure chamber, thereby causing the problem of increased pressure in the back-pressure chamber, and further improving the reliability of the compressor during operation.

[0032] In some technical solutions, optionally, when at least part of the first seal is disposed between the first groove wall and the connecting portion, at least one of the connecting portion and the static disk is provided with a mounting groove, and at least part of the first seal is embedded in the mounting groove.

[0033] In this technical solution, it is defined that at least a portion of the first sealing member is disposed between the first groove wall and the connecting portion, specifically, the connecting portion is provided with a mounting groove, or the static disk is provided with a mounting groove, or both the connecting portion and the static disk are provided with mounting grooves. The specific arrangement can be made according to actual needs.

[0034] At least a portion of the first seal is embedded in the installation groove, so that the sealing effect of the connection between the stator plate and the support frame can be improved, and the width of the compression mechanism in the radial direction can be reduced, thereby reducing the width of the entire compressor. In addition, the installation stability and reliability of the first seal can be improved, ensuring that the first seal can effectively seal the connection between the stator plate and the support frame.

[0035] In some technical solutions, optionally, at least a portion of the first groove wall extends in the axial direction of the stator disk; and / or at least a portion of the second groove wall extends in the radial direction of the stator disk.

[0036] In this technical solution, at least a portion of the first groove wall extends along the axial direction of the stator disk, that is, at least a portion of the first groove wall is a vertical wall surface.

[0037] At least a portion of the second groove wall extends along the radial direction of the stator disk, that is, at least a portion of the second groove wall is a horizontal wall surface.

[0038] By setting the first groove wall of the recessed portion as a vertical wall surface, and / or setting the second groove wall of the recessed portion as a horizontal wall surface, the sealing cooperation between the stator disk and the connecting portion is facilitated, and the manufacturing difficulty of the stator disk is reduced, thereby helping to reduce the production cost of the compression mechanism.

[0039] In some technical solutions, optionally, the support frame is provided with a connecting portion connected to the stator disk; wherein at least part of the first seal is located between a side of the connecting portion facing the stator disk and a side of the stator disk facing the connecting portion.

[0040] In this technical solution, it is defined that the support frame is provided with a connecting portion, specifically, the connecting portion is connected to the stator disk, and at least a portion of the first sealing member is arranged between a side of the connecting portion facing the stator disk and a side of the stator disk facing the connecting portion, that is, a first sealing member is arranged between contact surfaces where the connecting portion and the stator disk contact each other, so as to improve the sealing effect of the connection between the support frame and the stator disk, thereby effectively preventing the high-pressure gas in the exhaust chamber from leaking into the back-pressure chamber through the connection between the support frame and the stator disk, and avoiding the increase of the pressure in the back-pressure chamber due to the leakage of high-pressure gas into the back-pressure chamber, resulting in an increase in the friction force of the contact surface between the moving disk and the stator disk, and further causing the problem of increased wear, thereby extending the service life and reliability of the compression mechanism.

[0041] Moreover, it can also reduce the risk of increased power loss caused by increased pressure in the back-pressure chamber due to leakage of high-pressure gas into the back-pressure chamber, which is beneficial to improving the energy efficiency of the compressor.

[0042] In addition, compared with the related art of making the contact surface between the frame and the stationary scroll disk fully contact to achieve sealing, it is beneficial to reduce the surface accuracy requirements of the contact surface between the support frame and the stationary disk, thereby helping to reduce the production cost of the compressor.

[0043] In some technical solutions, optionally, the first seal is provided with a plurality of connection holes, and the compression mechanism further comprises a plurality of fasteners, and the plurality of fasteners can respectively pass through the plurality of connection holes to connect the stator disk, the first seal and the connection part.

[0044] In this technical solution, it is defined that the compression mechanism also includes multiple fasteners. Specifically, the first seal is provided with multiple connecting holes. It can be understood that the stator is provided with multiple first mounting holes, and the connecting part is provided with multiple second mounting holes. Each fastener passes through a first mounting hole and a connecting hole respectively, and is connected to a second mounting hole. Therefore, while achieving a fixed connection between the stator and the support frame, the first seal is reliably fixed, the installation stability of the first seal is improved, and it is ensured that the first seal can effectively seal the connection between the stator and the support frame, further preventing the high-temperature and high-pressure gas in the exhaust chamber from entering the back-pressure chamber through the connection between the stator and the connecting part, which is beneficial to reducing the power consumption of the compressor and improving the energy efficiency of the compressor.

[0045] Optionally, the fastener comprises a bolt.

[0046] In some technical solutions, optionally, the first seal is an annular seal, and along the axial direction of the stator disk, the annular seal is located between the stator disk and the connecting portion.

[0047] In this technical solution, the first seal is defined as an annular seal. Along the axial direction of the stator disk, the annular seal is located between the stator disk and the connecting portion, which is beneficial to further enhance the sealing effect on the back pressure chamber, thereby further preventing the high-pressure gas in the exhaust chamber from leaking into the back pressure chamber through the connection between the connecting portion and the stator disk.

[0048] In some technical solutions, optionally, along the radial direction of the stator disk, the first sealing member is located at a side of the connection between the stator disk and the support frame that is away from the compression chamber.

[0049] In this technical solution, it is defined that the first seal is arranged on the side of the connection between the stator disk and the support frame that is away from the compression chamber. In other words, the first seal is arranged on the outside of the connection between the stator disk and the support frame, that is, the first seal is located between the outer wall of the support frame and the inner wall of the shell, which also defines another way of sealing the connection between the stator disk and the support frame.

[0050] By setting the first sealing member, it is possible to effectively prevent the high-pressure gas in the exhaust chamber from leaking into the back-pressure chamber through the connection between the support frame and the stationary plate, thereby preventing the pressure in the back-pressure chamber from increasing due to the leakage of high-pressure gas into the back-pressure chamber, thereby increasing the friction force on the contact surface between the moving plate and the stationary plate, and further causing increased wear, thereby extending the service life and reliability of the compression mechanism.

[0051] Moreover, it can also reduce the risk of increased power loss caused by increased pressure in the back-pressure chamber due to leakage of high-pressure gas into the back-pressure chamber, which is beneficial to improving the energy efficiency of the compressor.

[0052] In addition, compared with the related art of making the contact surface between the frame and the stationary scroll disk fully contact to achieve sealing, it is beneficial to reduce the surface accuracy requirements of the contact surface between the support frame and the stationary disk, thereby helping to reduce the production cost of the compressor.

[0053] In some technical solutions, optionally, the support frame is provided with a support surface, which is located on the inner side of the back pressure chamber along the radial direction of the static disk and is used to support the dynamic disk; the compression mechanism also includes a second seal, which is arranged between a side of the dynamic disk away from the static disk and the support surface.

[0054] In this technical solution, it is defined that the compression mechanism also includes a second sealing member. Specifically, the support frame is provided with a support surface, and along the radial direction of the static disk, the support surface is located on the inner side of the back pressure cavity, that is, the support surface is located on the side of the back pressure cavity close to the central axis of the static disk. The support surface can support the dynamic disk.

[0055] The second seal is arranged between a side of the moving disk facing away from the static disk and the support surface, that is, the second seal is arranged between a side of the moving disk facing the support surface and the support surface, thereby achieving sealing on the inner peripheral side of the back pressure chamber and improving the sealing effect of the back pressure chamber.

[0056] Optionally, the second sealing member comprises a sealing ring.

[0057] In some technical solutions, optionally, the support frame is further provided with a groove, the groove is connected to the support surface, along the axial direction of the static disk, at least a portion of the groove is opposite to the dynamic disk, and part of the groove wall, the dynamic disk and the static disk enclose a back pressure cavity.

[0058] In this technical solution, it is specified that the support frame is also provided with a groove. Specifically, the groove is connected to the supporting surface. Along the axial direction of the static disk, the dynamic disk is opposite to at least part of the groove, and part of the groove wall, the dynamic disk and the static disk are combined to form a back pressure cavity, so that at least part of the back pressure cavity is formed on the side of the dynamic disk away from the static disk. When gas with a certain pressure in the compression chamber is introduced into the back pressure cavity, an axial thrust toward the static disk can be generated on the dynamic disk, that is, an upward supporting force, thereby improving the sealing between the static disk and the dynamic disk, and improving the energy efficiency of the compressor.

[0059] Moreover, since the back pressure chamber can generate an axial thrust toward the static plate on the moving plate, the contact between the moving plate and the support frame can be reduced, thereby reducing the wear between the moving plate and the support frame and extending the service life of the compressor.

[0060] According to the second aspect of the utility model, a compressor is provided, comprising a compression mechanism as provided by any of the above technical solutions, thereby having all the beneficial technical effects of the compression mechanism, which will not be repeated here.

[0061] Furthermore, the compressor also includes a shell, the shell is provided with an exhaust chamber, the compression mechanism is arranged in the exhaust chamber, and the exhaust port is communicated with the exhaust chamber.

[0062] The compressor provided in the embodiment of the utility model comprises a shell and a compression mechanism. Specifically, the compression mechanism is arranged in the exhaust chamber.

[0063] The stationary disk is provided with an exhaust port, which is connected to the compression chamber, and the exhaust chamber of the compressor is connected to the exhaust port. It is understandable that the compression mechanism also includes an air intake port, which is connected to the compression chamber. Specifically, the refrigerant is sucked into the compression chamber from the air intake port, and the refrigerant sucked into the compression chamber is compressed during the translational rotation of the moving disk relative to the stationary disk. Since the back pressure chamber is connected to the compression chamber, a part of the gas enters the back pressure chamber through the back pressure channel on the moving disk, and the remaining gas continues to be compressed in the compression chamber. When the compressed gas reaches the exhaust pressure, it is discharged through the exhaust port and enters the exhaust chamber.

[0064] The static plate, the moving plate and the support frame together form a back-pressure chamber. Since the gas in the compression chamber can enter the back-pressure chamber, the back-pressure chamber is formed into a medium-pressure chamber with a certain pressure. During the operation of the compressor, due to the existence of the back-pressure chamber, an axial thrust toward the static plate, that is, an upward supporting force, can be generated on the moving plate, thereby improving the sealing between the static plate and the moving plate and improving the energy efficiency of the compressor.

[0065] The first sealing member is arranged at the connection between the support frame and the stator plate to seal the connection between the support frame and the stator plate, thereby sealing the back pressure chamber, effectively preventing the high-pressure gas in the exhaust chamber from leaking into the back pressure chamber through the connection between the support frame and the stator plate, and avoiding the pressure in the back pressure chamber from increasing due to the leakage of high-pressure gas into the back pressure chamber, resulting in an increase in the friction force of the contact surface between the moving plate and the stator plate, thereby causing the problem of increased wear, thereby extending the service life and reliability of the compression mechanism.

[0066] Moreover, it can also reduce the risk of increased power loss caused by increased pressure in the back-pressure chamber due to leakage of high-pressure gas into the back-pressure chamber, which is beneficial to improving the energy efficiency of the compressor.

[0067] In addition, compared with the related art of making the contact surface between the frame and the stationary scroll disk fully contact to achieve sealing, it is beneficial to reduce the surface accuracy requirements of the contact surface between the support frame and the stationary disk, thereby helping to reduce the production cost of the compressor.

[0068] According to the third aspect of the utility model, an air conditioner is provided, comprising a compression mechanism or a compressor as provided by any of the above technical solutions, thereby having all the beneficial technical effects of the compression mechanism or the compressor, which will not be repeated here.

[0069] Additional aspects and advantages of the present invention will be given in the following description, and some will become apparent from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0070] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0071] Figure 1 A schematic structural diagram of a compression mechanism according to an embodiment of the utility model is shown;

[0072] Figure 2 One of the exploded views of a compression mechanism according to an embodiment of the utility model is shown;

[0073] Figure 3 One of the structural schematic diagrams of a compressor according to an embodiment of the utility model is shown;

[0074] Figure 4 A second structural schematic diagram of a compressor according to an embodiment of the utility model is shown;

[0075] Figure 5 Shows Figure 4 An enlarged view of the compressor of the illustrated embodiment at A;

[0076] Figure 6 A second exploded view of a compression mechanism according to an embodiment of the utility model is shown;

[0077] Figure 7 A partial structural schematic diagram of a compression mechanism according to an embodiment of the utility model is shown.

[0078] in, Figures 1 to 7 The corresponding relationship between the reference numerals and the component names is as follows:

[0079] 100 compression mechanism, 110 static plate, 111 exhaust port, 112 recessed portion, 113 first groove wall, 114 second groove wall, 120 dynamic plate, 130 compression chamber, 140 support frame, 141 connecting portion, 142 supporting surface, 143 groove, 150 back pressure chamber, 160 first sealing member, 161 connecting hole, 170 mounting groove, 180 fastener, 190 second sealing member, 200 compressor, 210 housing, 211 exhaust chamber. DETAILED DESCRIPTION

[0080] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0081] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0082] Refer to the following Figures 1 to 7 The compression mechanism 100, the compressor 200 and the air conditioner provided according to some embodiments of the present invention are described.

[0083] In one embodiment according to the present application, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, a compression mechanism 100 is proposed, and the compression mechanism 100 includes: a static plate 110, and the static plate 110 is provided with an exhaust port 111; a dynamic plate 120, which is enclosed with the static plate 110 to form a compression chamber 130, and the compression chamber 130 is connected with the exhaust port 111; a support frame 140, which is arranged on the side of the dynamic plate 120 away from the static plate 110 and is connected to the static plate 110, and the dynamic plate 120, the static plate 110 and the support frame 140 are enclosed to form a back pressure chamber 150, and the back pressure chamber 150 is connected with the compression chamber 130; a first sealing member 160, which is arranged at the connection between the support frame 140 and the static plate 110, and is used to seal the back pressure chamber 150.

[0084] The compression mechanism 100 provided in the embodiment of the utility model includes a static plate 110, a dynamic plate 120, a support frame 140 and a first sealing member 160. Specifically, the dynamic plate 120 and the static plate 110 enclose a compression chamber 130. Optionally, the compressor 200 further includes a motor and a crankshaft, and the crankshaft is connected to the motor and the dynamic plate 120. Specifically, under the drive of the motor, the crank pin (eccentric shaft) of the crankshaft drives the dynamic plate 120 to perform translational rotation relative to the static plate 110.

[0085] The stationary plate 110 is provided with an exhaust port 111, and the exhaust port 111 is connected to the compression chamber 130, and the exhaust chamber 211 of the compressor 200 is connected to the exhaust port 111. It can be understood that the compression mechanism 100 also includes an air intake port, and the air intake port is connected to the compression chamber 130. Specifically, the refrigerant is sucked into the compression chamber 130 from the air intake port, and the refrigerant sucked into the compression chamber 130 is compressed during the translational rotation of the moving plate 120 relative to the stationary plate 110. Since the back pressure chamber 150 is connected to the compression chamber 130, a part of the gas enters the back pressure chamber 150 through the back pressure channel on the moving plate 120, and the remaining gas continues to be compressed in the compression chamber 130. When the compressed gas reaches the exhaust pressure, it is discharged through the exhaust port 111 and enters the exhaust chamber 211.

[0086] The support frame 140 is disposed on a side of the moving plate 120 away from the static plate 110 , and the support frame 140 is connected to the static plate 110 . It can be understood that the support frame 140 is used to support the moving plate 120 .

[0087] The static plate 110, the moving plate 120 and the support frame 140 are enclosed to form a back-pressure chamber 150. Since the gas in the compression chamber 130 can enter the back-pressure chamber 150, the back-pressure chamber 150 is formed into a medium-pressure chamber with a certain pressure. During the operation of the compressor 200, due to the existence of the back-pressure chamber 150, an axial thrust toward the static plate 110, that is, an upward supporting force, can be generated on the moving plate 120, thereby improving the sealing between the static plate 110 and the moving plate 120, and improving the energy efficiency of the compressor 200.

[0088] Moreover, since the back pressure chamber 150 can generate an axial thrust toward the static plate 110 on the moving plate 120, the contact between the moving plate 120 and the support frame 140 can be reduced, thereby reducing the wear between the moving plate 120 and the support frame 140 and extending the service life of the compressor 200.

[0089] It can be understood that the pressure in the exhaust chamber 211 is greater than the pressure in the back pressure chamber 150, that is, the exhaust chamber 211 is a high pressure chamber, and the exhaust chamber 211 and the back pressure chamber 150 are separated by the connection between the static plate 110 and the support frame 140. If the high temperature and high pressure gas in the high pressure chamber leaks into the back pressure chamber 150 through the connection between the static plate 110 and the support frame 140, the pressure in the back pressure chamber 150 will increase, increasing the axial thrust on the moving plate 120, resulting in an increase in the contact stress of the contact surface between the static plate 110 and the moving plate 120, increasing the wear of the contact surface, and reducing the service life of the compression mechanism 100. Moreover, the increase in the pressure in the back pressure chamber 150 will also increase the power consumption of the compressor 200 and reduce the energy efficiency of the compressor 200.

[0090] The first sealing member 160 is disposed at the connection between the support frame 140 and the stator plate 110 to seal the connection between the support frame 140 and the stator plate 110, thereby sealing the back pressure chamber 150, and effectively preventing the high pressure gas in the exhaust chamber 211 from leaking into the back pressure chamber 150 through the connection between the support frame 140 and the stator plate 110, thereby avoiding the pressure in the back pressure chamber 150 to increase due to the leakage of high pressure gas into the back pressure chamber 150, resulting in an increase in the friction force of the contact surface between the moving plate 120 and the stator plate 110, and further causing the problem of increased wear, thereby extending the service life and reliability of the compression mechanism 100.

[0091] Moreover, the risk of increased power loss caused by increased pressure in the back-pressure chamber 150 due to leakage of high-pressure gas into the back-pressure chamber 150 can be reduced, which is beneficial to improving the energy efficiency of the compressor 200.

[0092] In addition, compared with the related art of making the contact surface between the frame and the stationary scroll plate fully contact to achieve sealing, it is beneficial to reduce the surface accuracy requirements of the contact surface between the support frame 140 and the stationary plate 110, which is beneficial to reduce the production cost of the compressor 200.

[0093] Optionally, the first sealing member 160 includes a sealing ring or a sealing gasket.

[0094] like Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, optionally, the stator disk 110 is provided with a recessed portion 112, and the support frame 140 is provided with a connecting portion 141. Along the axial direction of the stator disk 110, the connecting portion 141 is inserted into the recessed portion 112 and connected to the stator disk 110; wherein, at least a portion of the first sealing member 160 is provided between the groove wall of the recessed portion 112 and the connecting portion 141.

[0095] In this embodiment, it is defined that the stator plate 110 is provided with a recessed portion 112. Specifically, the support frame 140 is provided with a connecting portion 141. The connecting portion 141 is inserted into the recessed portion 112 along the axial direction of the stator plate 110, and the connecting portion 141 is connected to the stator plate 110. The provision of the recessed portion 112 is conducive to increasing the contact area between the stator plate 110 and the connecting portion 141, improving the sealing effect of the connection between the stator plate 110 and the support frame 140, further preventing the high-temperature and high-pressure gas in the exhaust chamber 211 from leaking into the back pressure chamber 150 through the connection between the stator plate 110 and the connecting portion 141, extending the service life of the compression mechanism 100, and improving the reliability and energy efficiency of the compressor 200.

[0096] In addition, the recessed portion 112 is provided to facilitate positioning during installation of the compression mechanism 100, thereby improving installation efficiency of the compression mechanism 100. Moreover, the stator plate 110 can be limited in radial direction, thereby improving installation stability of the stator plate 110 and further improving reliability of the compressor 200.

[0097] At least a portion of the first seal 160 is disposed between the groove wall of the recessed portion 112 and the connecting portion 141, thereby sealing the connection between the support frame 140 and the static disk 110, effectively preventing the high-pressure gas in the exhaust chamber 211 from leaking into the back-pressure chamber 150 through the connection between the support frame 140 and the static disk 110, and avoiding the problem of increased wear due to the increase in the friction force of the contact surface between the moving disk 120 and the static disk 110 caused by the leakage of high-pressure gas into the back-pressure chamber 150, thereby extending the service life and reliability of the compression mechanism 100. Moreover, it can also reduce the risk of increased power loss caused by the increase in the pressure in the back-pressure chamber 150 caused by the leakage of high-pressure gas into the back-pressure chamber 150, which is conducive to improving the energy efficiency of the compressor 200.

[0098] In addition, compared with the related art of making the contact surface between the frame and the stationary scroll plate fully contact to achieve sealing, it is beneficial to reduce the surface accuracy requirements of the contact surface between the support frame 140 and the stationary plate 110, which is beneficial to reduce the production cost of the compressor 200.

[0099] like Figure 1 and Figure 3 As shown, in some embodiments, optionally, the recessed portion 112 includes a first groove wall 113 and a second groove wall 114, and the first groove wall 113 is closer to the back pressure chamber 150 than the second groove wall 114; wherein at least a portion of the first seal 160 is disposed between the first groove wall 113 and the connecting portion 141; and / or at least a portion of the first seal 160 is disposed between the second groove wall 114 and the connecting portion 141.

[0100] In this embodiment, the recessed portion 112 is defined to include a first groove wall 113 and a second groove wall 114 . Specifically, the first groove wall 113 is closer to the back pressure cavity 150 than the second groove wall 114 . That is, the first groove wall 113 is located radially inward of the second groove wall 114 .

[0101] At least a portion of the first seal 160 is disposed between the first groove wall 113 and the connecting portion 141, or at least a portion of the first seal 160 is disposed between the second groove wall 114 and the connecting portion 141, or the number of the first seals 160 is at least two, at least one first seal 160 is disposed between the first groove wall 113 and the connecting portion 141, and at least one first seal 160 is disposed between the second groove wall 114 and the connecting portion 141. The specific configuration can be based on actual needs.

[0102] By arranging the first seal 160 between the first groove wall 113 and the connecting portion 141, and / or arranging the first seal 160 between the second groove wall 114 and the connecting portion 141, the sealing effect of the connection between the stator plate 110 and the support frame 140 can be improved, thereby preventing the high-temperature and high-pressure gas in the exhaust chamber 211 from leaking into the back-pressure chamber 150 through the connection between the stator plate 110 and the support frame 140, reducing the wear between the contact surfaces of the moving plate 120 and the stator plate 110, and improving the energy efficiency and reliability of the compressor 200.

[0103] Optionally, the first groove wall 113 is connected to the second groove wall 114 to enclose and form a recessed portion 112 .

[0104] like Figure 1 and Figure 3 As shown, in some embodiments, optionally, when at least a portion of the first sealing member 160 is disposed between the first groove wall 113 and the connecting portion 141 , a side of the connecting portion 141 facing the second groove wall 114 is in contact with the second groove wall 114 .

[0105] In this embodiment, at least a portion of the first sealing member 160 is defined as being disposed between the first groove wall 113 and the connecting portion 141. Specifically, the connecting portion 141 is in contact with the second groove wall 114 on one side thereof facing the second groove wall 114, thereby forming a multi-stage sealing structure between the connecting portion 141 and the recessed portion 112 of the stator plate 110, thereby further improving the sealing effect of the connection between the stator plate 110 and the support frame 140, thereby preventing the high-temperature and high-pressure gas in the exhaust chamber 211 from leaking into the back-pressure chamber 150, thereby causing the pressure in the back-pressure chamber 150 to increase, thereby further improving the reliability of the compressor 200 during operation.

[0106] like Figure 1 and Figure 3As shown, in some embodiments, optionally, when at least a portion of the first seal 160 is disposed between the first groove wall 113 and the connecting portion 141 , at least one of the connecting portion 141 and the stator disk 110 is provided with a mounting groove 170 , and at least a portion of the first seal 160 is embedded in the mounting groove 170 .

[0107] In this embodiment, at least a portion of the first sealing member 160 is defined to be disposed between the first groove wall 113 and the connecting portion 141. Specifically, the connecting portion 141 is provided with a mounting groove 170, or the static disk 110 is provided with a mounting groove 170, or both the connecting portion 141 and the static disk 110 are provided with a mounting groove 170. The specific configuration can be based on actual needs.

[0108] At least a portion of the first seal 160 is embedded in the installation groove 170, so that the sealing effect of the connection between the stator plate 110 and the support frame 140 can be improved, and the width of the compression mechanism 100 in the radial direction can be reduced, thereby reducing the width of the entire compressor 200. In addition, the installation stability and reliability of the first seal 160 can be improved, ensuring that the first seal 160 can effectively seal the connection between the stator plate 110 and the support frame 140.

[0109] like Figure 1 As shown, in some embodiments, optionally, at least a portion of the first slot wall 113 extends along the axial direction of the stator disk 110 ; and / or at least a portion of the second slot wall 114 extends along the radial direction of the stator disk 110 .

[0110] In this embodiment, at least a portion of the first groove wall 113 extends along the axial direction of the stator plate 110 , that is, at least a portion of the first groove wall 113 is a vertical wall surface.

[0111] At least a portion of the second groove wall 114 extends along the radial direction of the stator plate 110 , that is, at least a portion of the second groove wall 114 is a horizontal wall surface.

[0112] By setting the first groove wall 113 of the recessed portion 112 as a vertical wall, and / or setting the second groove wall 114 of the recessed portion 112 as a horizontal wall, the sealing cooperation between the stator plate 110 and the connecting portion 141 is facilitated, and the manufacturing difficulty of the stator plate 110 is reduced, thereby helping to reduce the production cost of the compression mechanism 100.

[0113] like Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments, optionally, the support frame 140 is provided with a connecting portion 141, and the connecting portion 141 is connected to the stator disk 110; wherein at least part of the first sealing member 160 is located between a side of the connecting portion 141 facing the stator disk 110 and a side of the stator disk 110 facing the connecting portion 141.

[0114] In this embodiment, it is defined that the support frame 140 is provided with a connecting portion 141. Specifically, the connecting portion 141 is connected to the stator plate 110, and at least a portion of the first sealing member 160 is arranged between a side of the connecting portion 141 facing the stator plate 110 and a side of the stator plate 110 facing the connecting portion 141. That is, the first sealing member 160 is arranged between the contact surfaces of the connecting portion 141 and the stator plate 110 to improve the sealing effect of the connection between the support frame 140 and the stator plate 110, thereby effectively preventing the high-pressure gas in the exhaust chamber 211 from leaking into the back-pressure chamber 150 through the connection between the support frame 140 and the stator plate 110, and avoiding the pressure in the back-pressure chamber 150 from increasing due to the leakage of high-pressure gas into the back-pressure chamber 150, resulting in an increase in the friction force of the contact surface between the moving plate 120 and the stator plate 110, thereby causing the problem of increased wear, thereby extending the service life and reliability of the compression mechanism 100.

[0115] Moreover, the risk of increased power loss caused by increased pressure in the back-pressure chamber 150 due to leakage of high-pressure gas into the back-pressure chamber 150 can be reduced, which is beneficial to improving the energy efficiency of the compressor 200.

[0116] In addition, compared with the related art of making the contact surface between the frame and the stationary scroll plate fully contact to achieve sealing, it is beneficial to reduce the surface accuracy requirements of the contact surface between the support frame 140 and the stationary plate 110, which is beneficial to reduce the production cost of the compressor 200.

[0117] like Figure 6 As shown, in some embodiments, optionally, the first seal 160 is provided with a plurality of connecting holes 161 , and the compression mechanism 100 further includes a plurality of fasteners 180 , which can respectively pass through the plurality of connecting holes 161 for connecting the stator plate 110 , the first seal 160 and the connecting portion 141 .

[0118] In this embodiment, it is defined that the compression mechanism 100 also includes multiple fasteners 180. Specifically, the first seal 160 is provided with multiple connecting holes 161. It can be understood that the stator 110 is provided with multiple first mounting holes, and the connecting portion 141 is provided with multiple second mounting holes. Each fastener 180 passes through a first mounting hole and a connecting hole 161 respectively, and is connected to a second mounting hole. Therefore, while achieving a fixed connection between the stator 110 and the support frame 140, the first seal 160 is reliably fixed, the installation stability of the first seal 160 is improved, and it is ensured that the first seal 160 can effectively seal the connection between the stator 110 and the support frame 140, and further prevent the high-temperature and high-pressure gas in the exhaust chamber 211 from entering the back pressure chamber 150 through the connection between the stator 110 and the connecting portion 141, which is beneficial to reducing the power consumption of the compressor 200 and improving the energy efficiency of the compressor 200.

[0119] Optionally, fastener 180 comprises a bolt.

[0120] like Figure 6 As shown, in some embodiments, optionally, the first seal 160 is an annular seal, and along the axial direction of the stator disk 110 , the annular seal is located between the stator disk 110 and the connecting portion 141 .

[0121] In this embodiment, the first seal 160 is defined as an annular seal, and along the axial direction of the stator disk 110, the annular seal is located between the stator disk 110 and the connecting portion 141, which is beneficial to further enhance the sealing effect on the back pressure chamber 150, thereby further preventing the high-pressure gas in the exhaust chamber 211 from leaking into the back pressure chamber 150 through the connection between the connecting portion 141 and the stator disk 110.

[0122] like Figure 7 As shown, in some embodiments, optionally, along the radial direction of the stator plate 110 , the first sealing member 160 is located at a side of the connection between the stator plate 110 and the support frame 140 away from the compression chamber 130 .

[0123] In this embodiment, it is defined that the first seal 160 is arranged on the side of the connection between the stator plate 110 and the support frame 140 that is away from the compression chamber 130. In other words, the first seal 160 is arranged on the outside of the connection between the stator plate 110 and the support frame 140, that is, the first seal 160 is located between the outer wall of the support frame 140 and the inner wall of the shell 210, that is, another way of sealing the connection between the stator plate 110 and the support frame 140 is defined.

[0124] By setting the first sealing member 160, it is possible to effectively prevent the high-pressure gas in the exhaust chamber 211 from leaking into the back-pressure chamber 150 through the connection between the support frame 140 and the stationary plate 110, thereby preventing the pressure in the back-pressure chamber 150 from increasing due to the leakage of high-pressure gas into the back-pressure chamber 150, thereby increasing the friction force on the contact surface between the moving plate 120 and the stationary plate 110, and further causing the problem of increased wear, thereby extending the service life and reliability of the compression mechanism 100.

[0125] Moreover, the risk of increased power loss caused by increased pressure in the back-pressure chamber 150 due to leakage of high-pressure gas into the back-pressure chamber 150 can be reduced, which is beneficial to improving the energy efficiency of the compressor 200.

[0126] In addition, compared with the related art of making the contact surface between the frame and the stationary scroll plate fully contact to achieve sealing, it is beneficial to reduce the surface accuracy requirements of the contact surface between the support frame 140 and the stationary plate 110, which is beneficial to reduce the production cost of the compressor 200.

[0127] like Figure 1 , Figure 3, Figure 4 and Figure 5 As shown, in some embodiments, optionally, the support frame 140 is provided with a support surface 142, and along the radial direction of the stator plate 110, the support surface 142 is located on the inner side of the back pressure chamber 150, and is used to support the moving plate 120; the compression mechanism 100 also includes a second sealing member 190, and the second sealing member 190 is arranged between a side of the moving plate 120 facing away from the stator plate 110 and the support surface 142.

[0128] In this embodiment, it is defined that the compression mechanism 100 further includes a second sealing member 190. Specifically, the support frame 140 is provided with a support surface 142. Along the radial direction of the static plate 110, the support surface 142 is located on the inner side of the back pressure cavity 150, that is, the support surface 142 is located on the side of the back pressure cavity 150 close to the central axis of the static plate 110. The support surface 142 can support the dynamic plate 120.

[0129] The second seal 190 is arranged between a side of the moving disk 120 facing away from the static disk 110 and the support surface 142, that is, the second seal 190 is arranged between a side of the moving disk 120 facing the support surface 142 and the support surface 142, thereby achieving sealing on the inner peripheral side of the back pressure cavity 150 and improving the sealing effect of the back pressure cavity 150.

[0130] Optionally, the second sealing member 190 includes a sealing ring.

[0131] like Figure 1 and Figure 5 As shown, in some embodiments, optionally, the support frame 140 is further provided with a groove 143, and the groove 143 is connected to the support surface 142. Along the axial direction of the static disk 110, at least a portion of the groove 143 is opposite to the moving disk 120, and a portion of the groove wall of the groove 143, the moving disk 120 and the static disk 110 enclose a back pressure chamber 150.

[0132] In this embodiment, it is defined that the support frame 140 is also provided with a groove 143. Specifically, the groove 143 is connected to the support surface 142. Along the axial direction of the static disk 110, the dynamic disk 120 is opposite to at least part of the groove 143, and part of the groove wall of the groove 143, the dynamic disk 120 and the static disk 110 are enclosed to form a back pressure chamber 150, so that at least part of the back pressure chamber 150 is located on the side of the dynamic disk 120 away from the static disk 110. When gas with a certain pressure in the compression chamber 130 is introduced into the back pressure chamber 150, an axial thrust toward the static disk 110, that is, an upward supporting force, can be generated on the dynamic disk 120, thereby improving the sealing between the static disk 110 and the dynamic disk 120, and improving the energy efficiency of the compressor 200.

[0133] Moreover, since the back pressure chamber 150 can generate an axial thrust toward the static plate 110 on the moving plate 120, the contact between the moving plate 120 and the support frame 140 can be reduced, thereby reducing the wear between the moving plate 120 and the support frame 140 and extending the service life of the compressor 200.

[0134] According to the second aspect of the utility model, a compressor 200 is provided, comprising a compression mechanism 100 as provided in any of the above embodiments, and thus having all the beneficial technical effects of the compression mechanism 100, which will not be described in detail herein.

[0135] like Figure 3 and Figure 4 As shown, further, the compressor 200 also includes a shell 210 , the shell 210 is provided with an exhaust chamber 211 , the compression mechanism 100 is disposed in the exhaust chamber 211 , and the exhaust port 111 is communicated with the exhaust chamber 211 .

[0136] The compressor 200 provided in the embodiment of the utility model includes a shell 210 and a compression mechanism 100 . Specifically, the compression mechanism 100 is disposed in an exhaust chamber 211 .

[0137] The stationary plate 110 is provided with an exhaust port 111, and the exhaust port 111 is connected to the compression chamber 130, and the exhaust chamber 211 of the compressor 200 is connected to the exhaust port 111. It can be understood that the compression mechanism 100 also includes an air intake port, and the air intake port is connected to the compression chamber 130. Specifically, the refrigerant is sucked into the compression chamber 130 from the air intake port, and the refrigerant sucked into the compression chamber 130 is compressed during the translational rotation of the moving plate 120 relative to the stationary plate 110. Since the back pressure chamber 150 is connected to the compression chamber 130, a part of the gas enters the back pressure chamber 150 through the back pressure channel on the moving plate 120, and the remaining gas continues to be compressed in the compression chamber 130. When the compressed gas reaches the exhaust pressure, it is discharged through the exhaust port 111 and enters the exhaust chamber 211.

[0138] The static plate 110, the moving plate 120 and the support frame 140 are enclosed to form a back-pressure chamber 150. Since the gas in the compression chamber 130 can enter the back-pressure chamber 150, the back-pressure chamber 150 is formed into a medium-pressure chamber with a certain pressure. During the operation of the compressor 200, due to the existence of the back-pressure chamber 150, an axial thrust toward the static plate 110, that is, an upward supporting force, can be generated on the moving plate 120, thereby improving the sealing between the static plate 110 and the moving plate 120, and improving the energy efficiency of the compressor 200.

[0139] The first sealing member 160 is disposed at the connection between the support frame 140 and the stator plate 110 to seal the connection between the support frame 140 and the stator plate 110, thereby sealing the back pressure chamber 150, and effectively preventing the high pressure gas in the exhaust chamber 211 from leaking into the back pressure chamber 150 through the connection between the support frame 140 and the stator plate 110, thereby avoiding the pressure in the back pressure chamber 150 to increase due to the leakage of high pressure gas into the back pressure chamber 150, resulting in an increase in the friction force of the contact surface between the moving plate 120 and the stator plate 110, and further causing the problem of increased wear, thereby extending the service life and reliability of the compression mechanism 100.

[0140] Moreover, the risk of increased power loss caused by increased pressure in the back-pressure chamber 150 due to leakage of high-pressure gas into the back-pressure chamber 150 can be reduced, which is beneficial to improving the energy efficiency of the compressor 200.

[0141] In addition, compared with the related art of making the contact surface between the frame and the stationary scroll plate fully contact to achieve sealing, it is beneficial to reduce the surface accuracy requirements of the contact surface between the support frame 140 and the stationary plate 110, which is beneficial to reduce the production cost of the compressor 200.

[0142] According to the third aspect of the utility model, an air conditioner is provided, comprising a compression mechanism 100 or a compressor 200 as provided in any of the above embodiments, and thus having all the beneficial technical effects of the compression mechanism 100 or the compressor 200, which will not be repeated here.

[0143] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0144] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0145] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A compression mechanism, characterized in that: The compression mechanism comprises: A static plate, wherein the static plate is provided with an exhaust port; A moving disk, enclosing with the stationary disk to form a compression chamber, wherein the compression chamber is communicated with the exhaust port; A support frame is arranged on a side of the moving plate away from the static plate and connected to the static plate, wherein the moving plate, the static plate and the support frame enclose a back pressure chamber, and the back pressure chamber is connected to the compression chamber; A first sealing member is provided at the connection between the support frame and the static disk and is used for sealing the back pressure cavity.

2. The compression mechanism according to claim 1, characterized in that: The static disk is provided with a recessed portion, and the support frame is provided with a connecting portion, and along the axial direction of the static disk, the connecting portion is inserted into the recessed portion and connected to the static disk; Wherein, at least part of the first sealing member is arranged between the groove wall of the recessed portion and the connecting portion.

3. The compression mechanism according to claim 2, characterized in that: The recessed portion includes a first groove wall and a second groove wall, wherein the first groove wall is closer to the back pressure cavity than the second groove wall; Wherein, at least part of the first sealing member is arranged between the first groove wall and the connecting portion; and / or at least part of the first sealing member is arranged between the second groove wall and the connecting portion.

4. The compression mechanism according to claim 3, characterized in that: In a case where at least a portion of the first sealing member is disposed between the first groove wall and the connecting portion, a side surface of the connecting portion facing the second groove wall is in contact with the second groove wall.

5. The compression mechanism according to claim 3, characterized in that: In the case where at least a portion of the first seal is disposed between the first groove wall and the connecting portion, at least one of the connecting portion and the static disk is provided with a mounting groove, and at least a portion of the first seal is embedded in the mounting groove.

6. The compression mechanism according to claim 3, characterized in that: At least a portion of the first groove wall extends along the axial direction of the stator disk; and / or At least a portion of the second groove wall extends in a radial direction of the stator disk.

7. The compression mechanism according to claim 1, characterized in that: The support frame is provided with a connecting portion, and the connecting portion is connected to the static disk; Wherein, at least a portion of the first sealing member is located between a side surface of the connecting portion facing the stator disk and a side surface of the stator disk facing the connecting portion.

8. The compression mechanism according to claim 7, characterized in that: The first sealing member is provided with a plurality of connecting holes, and the compression mechanism further comprises: A plurality of fasteners are capable of respectively passing through the plurality of connecting holes to connect the stator disk, the first sealing member and the connecting portion.

9. The compression mechanism according to claim 7, characterized in that: The first sealing member is an annular sealing member, and along the axial direction of the stator disk, the annular sealing member is located between the stator disk and the connecting portion.

10. The compression mechanism according to claim 1, characterized in that: Along the radial direction of the stator disk, the first sealing member is located at a side of a connection between the stator disk and the support frame that is away from the compression chamber.

11. The compression mechanism according to any one of claims 1 to 10, characterized in that: The support frame is provided with a support surface, along the radial direction of the static disk, the support surface is located inside the back pressure cavity, and is used to support the dynamic disk; The compression mechanism also includes: The second sealing member is arranged between a side surface of the moving plate facing away from the static plate and the supporting surface.

12. A compressor, characterized in that: include: A compression mechanism as claimed in any one of claims 1 to 11; The shell is provided with an exhaust chamber, the compression mechanism is arranged in the exhaust chamber, and the exhaust port is communicated with the exhaust chamber.

13. An air conditioner, characterized in that: include: A compression mechanism as claimed in any one of claims 1 to 11; or The compressor of claim 12.

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