Compressor and refrigeration apparatus

Abstract

The utility model provides a kind of compressor and refrigeration equipment, compressor includes: shell, shell includes air inlet cavity and exhaust cavity;Compression mechanism, be located in air inlet cavity, compression mechanism includes dynamic disc and static disc assembly, dynamic disc and static disc assembly form compression cavity, static disc assembly includes exhaust passage, compression cavity can be communicated with exhaust cavity by exhaust passage;First back pressure cavity, be located in the side of static disc assembly away from dynamic disc, and can be communicated with compression cavity;Support frame, be located in air inlet cavity, and located in the side of dynamic disc away from static disc assembly, for supporting dynamic disc;Second back pressure cavity, be located between dynamic disc and support frame, at least one of first back pressure cavity, exhaust passage and exhaust cavity is communicated with second back pressure cavity, to reduce the friction between dynamic disc and support frame, significantly reduce friction power consumption, improve the sealing between static disc assembly and dynamic disc spiral tooth, it is favorable to improve the energy efficiency of compressor.

Description

Technical Field

[0001] This utility model relates to the field of compressor equipment technology, and more specifically, to a compressor and refrigeration equipment. Background Technology

[0002] Currently, low back pressure constant speed scroll compressors in related technologies generally include a stationary scroll, a moving scroll, a main frame, a crankshaft, and a motor. The motor drives the crankshaft to drive the moving scroll to revolve relative to the stationary scroll, completing the compression process. The main frame is used for the moving scroll.

[0003] However, during the operation of a scroll compressor, frictional power consumption is relatively high, and there is leakage between the stationary and moving scroll teeth, which reduces the energy efficiency of the scroll compressor. Utility Model Content

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

[0005] Therefore, a first aspect of the embodiments of this utility model provides a compressor.

[0006] A second aspect of the present invention provides a refrigeration device.

[0007] In view of the above, according to a first aspect of the present invention, a compressor is provided, the compressor comprising: a housing, the housing including an intake chamber and an exhaust chamber; a compression mechanism disposed within the intake chamber, the compression mechanism including a moving plate and a stationary plate assembly, the moving plate and the stationary plate assembly forming a compression chamber, the stationary plate assembly including an exhaust passage, the compression chamber being able to communicate with the exhaust chamber through the exhaust passage; a first back pressure chamber disposed on the side of the stationary plate assembly away from the moving plate, and being able to communicate with the compression chamber; a support frame disposed within the intake chamber and located on the side of the moving plate away from the stationary plate assembly, for supporting the moving plate; and a second back pressure chamber disposed between the moving plate and the support frame, at least one of the first back pressure chamber, the exhaust passage, and the exhaust chamber being in communication with the second back pressure chamber.

[0008] The compressor provided in this embodiment includes a housing, a compression mechanism, a first back pressure chamber, a support frame, and a second back pressure chamber. Specifically, a stationary disc assembly and a moving disc form a compression chamber. The stationary disc assembly includes an exhaust channel, and the compression chamber can communicate with the exhaust chamber through the exhaust channel. Specifically, during compressor operation, the moving disc rotates relative to the stationary disc assembly to compress the refrigerant in the compression chamber. When the pressure of the compressed refrigerant reaches the exhaust pressure, the high-temperature, high-pressure refrigerant flows through the exhaust channel to the exhaust chamber and is then discharged outside the housing, completing the compression and exhaust process.

[0009] Since the first back pressure chamber is located on the side of the stationary disc assembly away from the moving disc and can communicate with the compression chamber, when the compressor is running, intermediate pressure can be introduced into the first back pressure chamber. This intermediate pressure can apply an axial force to the stationary disc assembly in the axial direction to push the stationary disc assembly to mesh and seal with the moving disc.

[0010] Meanwhile, since the second back pressure chamber is located between the moving plate and the support frame, and the second back pressure chamber can communicate with at least one of the first back pressure chamber, the exhaust passage, and the exhaust chamber, medium or high pressure can be introduced into the second back pressure chamber during compressor operation. This medium or high pressure can apply an axial force to the moving plate to push the moving plate to engage and seal with the stationary plate assembly. In other words, this compressor is a dual-floating compressor.

[0011] By setting up a first back pressure chamber and a second back pressure chamber, axial forces can be applied to the stationary disk assembly and the moving disk on both sides of the axial direction, so that the volutes of the stationary disk assembly and the moving disk mesh tightly, increasing the sealing performance of the tooth top and tooth bottom, reducing leakage, and improving the energy efficiency of the compressor. Compared with related technologies that reduce leakage between volutes by adjusting the tooth height difference between the moving and stationary volutes, this method simplifies the manufacturing process and reduces the manufacturing precision of the moving disk and stationary disk assembly.

[0012] In addition, since the second back pressure chamber is located between the side of the moving plate away from the stationary plate assembly and the support frame, that is, the second back pressure chamber acts on the back of the moving plate, the moving plate can float, thereby reducing the friction between the moving plate and the support frame, significantly reducing frictional power consumption, and improving the energy efficiency of the compressor.

[0013] It can be understood that when the second back pressure chamber is connected to the first back pressure chamber, medium pressure is introduced into the second back pressure chamber. When the second back pressure chamber is connected to the exhaust passage and / or exhaust chamber, high pressure is introduced into the second back pressure chamber. The specific settings can be configured according to actual needs.

[0014] In addition, the support frame is located on the side of the moving plate away from the stationary plate assembly, and the support frame is used to support the moving plate, which helps to improve the reliability of the compressor.

[0015] Optionally, the support frame includes a thrust surface with a groove. The groove wall and the side of the moving plate away from the stationary plate assembly enclose a second back pressure cavity. Alternatively, the side of the moving plate away from the stationary plate assembly has a groove, and the groove wall and the thrust surface enclose a second back pressure cavity. Alternatively, the side of the moving plate away from the stationary plate assembly has a first groove, and the thrust surface has a second groove, with the groove walls of the first and second grooves enclosing a second back pressure cavity. The specific configuration can be adjusted according to actual needs.

[0016] In some technical solutions, the compressor may optionally include a sealing groove and a first seal, wherein the sealing groove is disposed in at least one of the moving plate and the support frame, the sealing groove is located on at least one side of the second back pressure chamber along the radial direction of the moving plate, and at least a portion of the first seal is located in the sealing groove.

[0017] In this technical solution, since at least part of the first seal is located in the sealing groove, the second back pressure chamber can be sealed on at least one side in the radial direction of the second back pressure chamber, so that the second back pressure chamber forms a sealed cavity, thereby providing reliable back pressure to the moving plate. While increasing the sealing between the stationary plate assembly and the moving plate and reducing leakage, the moving plate floats up, reducing frictional power consumption and improving the energy efficiency of the compressor.

[0018] In some technical solutions, optionally, the depth of the sealing groove along the axial direction of the moving disc is greater than the depth of the second back pressure chamber.

[0019] In this technical solution, since the axial depth of the sealing groove is greater than the axial depth of the second back pressure chamber, that is, the axial depth of the sealing groove is set to be deeper, it can effectively seal the second back pressure chamber while limiting the first seal. This prevents the first seal from affecting the introduction of back pressure and causing seal failure due to positional movement, which is beneficial to improving the reliability of the compressor.

[0020] In some technical solutions, the sealing groove is optionally connected to the second back pressure chamber.

[0021] In this technical solution, since the sealing groove is connected to the second back pressure chamber, on the one hand, the volume of the back pressure introduced on the back of the moving plate can be increased, thereby increasing the back pressure and allowing the moving plate to float effectively, further reducing frictional power consumption. Simultaneously, it increases the sealing performance between the moving plate and the stationary plate assembly. On the other hand, since at least a portion of the first seal is located within the sealing groove, the back pressure introduced into the second back pressure chamber can apply a certain radial force to the first seal, which is beneficial for further improving the sealing effect of the second back pressure chamber.

[0022] In some technical solutions, the support frame may optionally include a thrust surface for supporting the moving disc; wherein the thrust surface is provided with a groove, and the side of the moving disc away from the stationary disc assembly is surrounded by the groove wall to form a second back pressure cavity.

[0023] In this technical solution, the second back pressure chamber acts on the back of the moving plate, which can make the moving plate float, thereby reducing the friction between the moving plate and the thrust surface, significantly reducing frictional power consumption, and improving the energy efficiency of the compressor.

[0024] Moreover, the groove is located on the thrust surface. Compared with the groove being located on the moving plate, this not only allows for the introduction of back pressure on the back of the moving plate, but also helps to ensure the structural strength of the moving plate and improve the reliability of the compressor.

[0025] In some technical solutions, optionally, a sealing groove is provided on the thrust surface, and there are two sealing grooves, namely a first sealing groove and a second sealing groove. Along the radial direction of the moving disk, the first sealing groove and the second sealing groove are located on both sides of the groove. Among them, along the radial direction of the moving disk, the width of the first sealing groove is t1, the width of the second sealing groove is t2, the width of the groove is t3, the width of the thrust surface is T, and (t1+t2+t3) / T≤0.5.

[0026] In this technical solution, by making (t1+t2+t3) / T less than or equal to 0.5, it is possible to introduce back pressure on the back of the moving plate and ensure the sealing effect of the second back pressure chamber, while reserving sufficient support area for the thrust surface. This not only provides reliable support for the moving plate but also reduces friction on the thrust surface and lowers frictional power consumption. This improves the compressor's energy efficiency and reliability.

[0027] In some technical solutions, the support frame may optionally include a connecting hole, one end of which passes through a groove, and the other end of which is connected to at least one of the first back pressure chamber, the exhaust channel, and the exhaust chamber; wherein the diameter of the connecting hole is d1, and d1≤(t1+t2+t3).

[0028] In this technical solution, since d1≤(t1+t2+t3), that is, the diameter of the connecting hole is less than or equal to the sum of the radial width of the first sealing groove, the radial width of the second sealing groove, and the radial width of the second back pressure chamber, during the operation of the compressor, it can ensure that the medium or high pressure enters the second back pressure chamber through the connecting hole while effectively sealing the second back pressure chamber, so that the moving plate floats, reducing frictional power consumption, improving the sealing performance between the volutes of the moving plate and stationary plate assembly, which is beneficial to improving the energy efficiency of the compressor.

[0029] In some technical solutions, optionally, the first sealing groove and the second sealing groove are connected to the groove respectively; wherein, along the axial direction of the moving disk, the depth of the first sealing groove and the depth of the second sealing groove are both greater than the depth of the groove.

[0030] In this technical solution, since the first and second sealing grooves are located on opposite sides of the groove radially and are connected to it, the volume of the back pressure introduced on the back of the moving plate can be further increased, thereby increasing the back pressure and allowing the moving plate to float effectively, further reducing frictional power consumption. Simultaneously, this increases the sealing performance between the moving plate and the stationary plate assembly. Furthermore, since at least a portion of the first seal is located within the sealing groove—meaning the first and second sealing grooves each contain a first seal—the back pressure introduced into the second back pressure cavity can apply a certain radial force to each of the two first seals, further enhancing the sealing effect of the second back pressure cavity.

[0031] Since the axial depth of the first sealing groove and the axial depth of the second sealing groove are both greater than the axial depth of the groove, they can limit the two first seals in the first sealing groove and the second sealing groove, thus preventing the first seals from affecting the introduction of back pressure and causing seal failure due to positional movement, which is beneficial to improving the reliability of the compressor.

[0032] In some technical solutions, optionally, the side of the moving disk away from the stationary disk assembly includes a contact surface that mates with the thrust surface, and the contact surface and the groove wall of the groove form a second back pressure cavity; wherein, the radius of rotation of the moving disk is e, the inner diameter of the thrust surface is d2, the outer diameter is d3, and the portion of the diameter of the contact surface between d2-2e and d3+2e is constructed as a plane.

[0033] In this technical solution, since the diameter of the contact surface between d2-2e and d3+2e is constructed as a plane, that is, the back of the moving disk between d2-2e and d3+2e is a plane, it is beneficial to further improve the sealing performance of the second back pressure chamber, ensure that the moving disk can float effectively, thereby reducing frictional power consumption and improving the sealing performance between the volutes of the moving disk and the stationary disk assembly.

[0034] In some technical solutions, the compressor may optionally include an elastic element, which is disposed between the first seal and the groove wall of the sealing groove along the axial direction of the moving disc.

[0035] In this technical solution, an elastic element is provided between the first seal and the wall of the sealing groove along the axial direction of the moving disk. That is, an elastic element is provided between the first seal and the bottom wall of the sealing groove. Under the action of the elastic force of the elastic element, the first seal can be pushed to the side where the moving disk is located, so that the first seal is in close contact with the back of the moving disk. This is beneficial to further improve the sealing effect of the second back pressure chamber, ensure that the moving disk can float effectively, thereby reducing frictional power consumption and improving the sealing performance between the volutes of the moving disk and the stationary disk assembly.

[0036] In some technical solutions, the sealing groove is optionally configured as an annular sealing groove; and / or the first seal includes a self-lubricating element; and / or the first seal includes a wear-resistant element.

[0037] In this technical solution, the sealing groove is an annular sealing groove. It can be understood that the first sealing element is an annular sealing element, which is beneficial to further improve the sealing effect of the second back pressure chamber, so that the second back pressure chamber forms a sealed cavity, thereby providing reliable back pressure for the moving plate. While increasing the sealing between the stationary plate assembly and the moving plate and reducing leakage, it also enables the moving plate to float effectively, reducing frictional power consumption and improving the energy efficiency of the compressor.

[0038] The first seal is a self-lubricating component, meaning it is made of a self-lubricating material, thus giving it excellent self-lubricating properties. Since the first seal contacts the back of the moving disc, making it self-lubricating helps to further reduce frictional power consumption, extend its service life, ensure reliable sealing of the second back pressure chamber, and improve the compressor's reliability.

[0039] The first seal is a wear-resistant component, meaning it is made of wear-resistant material, thus giving it excellent wear resistance. Since the first seal contacts the back of the moving disc, making it a wear-resistant component helps extend its service life, ensures reliable sealing of the second back pressure chamber, and improves the compressor's reliability.

[0040] In some technical solutions, optionally, the depth of the second back pressure chamber along the axial direction of the moving disk is h, where h ≥ 0.5 mm.

[0041] In this technical solution, by making the axial depth of the second back pressure chamber greater than or equal to 0.5mm, it is ensured that when the compressor is running, the back pressure applied to the back of the moving plate can effectively float the moving plate, reduce frictional power consumption, improve the sealing performance between the volutes of the moving plate and stationary plate assembly, and help improve the energy efficiency of the compressor.

[0042] In some technical solutions, the compressor may optionally include a pressure-inducing assembly, which is located in the intake chamber and connected to the support frame. The pressure-inducing assembly includes a pressure-inducing channel, one end of which is connected to at least one of the first back pressure chamber, the exhaust channel, and the exhaust chamber. The support frame also includes a flow passage, one end of which is connected to the other end of the pressure-inducing channel, and the other end of which is connected to the second back pressure chamber.

[0043] In this technical solution, the pressure-inducing assembly includes a pressure-inducing channel, and the support frame includes a flow-through channel. One end of the pressure-inducing channel is connected to at least one of the first back pressure chamber, the exhaust channel, and the exhaust chamber, while the other end of the pressure-inducing channel is connected to the flow-through channel, which is connected to the second back pressure chamber. This allows for the introduction of medium or high pressure from the back of the moving plate. Specifically, during compressor operation, the introduction of medium or high pressure into the second back pressure chamber allows this medium or high pressure to apply an axial force to the moving plate, thereby driving the moving plate to engage and seal with the stationary plate assembly.

[0044] In addition, since the second back pressure chamber acts on the back of the moving plate, the moving plate can float, thereby reducing the friction between the moving plate and the thrust surface, significantly reducing frictional power consumption, improving the sealing performance between the moving plate and the stationary plate volutes, and improving the energy efficiency of the compressor.

[0045] In some technical solutions, the flow channel may optionally include a first flow path, a second flow path, and a third flow path, wherein the first flow path is connected to the pressure channel and extends at least partially along the axial direction of the moving disk, the second flow path is connected to the second back pressure chamber and extends at least partially along the axial direction of the moving disk, the third flow path is located between the first flow path and the second flow path and extends at least partially along the radial direction of the moving disk, and the two ends of the third flow path are connected to the first flow path and the second flow path, respectively.

[0046] In this technical solution, the flow channel is defined to include a first flow path, a second flow path, and a third flow path. Specifically, the first flow path and the second flow path extend along the axial direction of the moving plate, and the third flow path extends along the radial direction of the moving plate. That is to say, during the operation of the compressor, medium-pressure or high-pressure gas flows into the second back pressure chamber in sequence through the pressure-inducing channel, the first flow path, the third flow path, and the second flow path, thereby introducing back pressure on the back of the moving plate.

[0047] In some technical solutions, the pressure-applying assembly is optionally floatingly connected to the support frame.

[0048] In this technical solution, since the pressure-pressing assembly is floatingly connected to the support frame, that is, at least a part of the pressure-pressing assembly can move relative to the support frame, it can play a buffering role during the transportation or assembly of the compressor, preventing damage to the pressure-pressing assembly from causing gas leakage during pressure pressing, which is beneficial to improving the reliability of the compressor.

[0049] Furthermore, during compressor operation, the stationary plate assembly can float slightly relative to the support frame. When the stationary plate assembly is connected to the other end of the pressure-applying assembly, since the pressure-applying assembly is floatingly connected to the support frame, that is, the floating of the pressure-applying assembly matches the slight movement of the stationary plate assembly, it can also play a buffering role during compressor operation, ensuring the sealing of the pressure-applying channel, and thus ensuring the introduction of back pressure on the back of the moving plate, achieving bidirectional floating.

[0050] In some technical solutions, optionally, the pressure-sensing channel includes a first channel, one end of which is connected to at least one of a first back pressure chamber, an exhaust channel, and an exhaust chamber. The pressure-sensing assembly includes a pressure-sensing tube and a first end, wherein the first channel is located in the pressure-sensing tube, the first end is connected to a support frame, the first end is provided with a first floating groove, the first floating groove is connected to a flow channel, the other end of the first channel is connected to the first floating groove, and one end of the pressure-sensing tube is inserted into the first floating groove and is able to move along the axial direction of the moving plate within the first floating groove.

[0051] In this technical solution, the pressure-inducing assembly is defined as including a pressure-inducing pipe and a first end, specifically, the first end is connected to a support frame. A first channel is provided in the pressure-inducing pipe. Since one end of the first channel is connected to at least one of the first back pressure chamber, the exhaust channel, and the exhaust chamber, and the other end of the first channel is connected to the first floating groove, and the first floating groove is connected to the flow channel, that is, during the operation of the compressor, medium-pressure or high-pressure gas flows into the second back pressure chamber sequentially through the first channel, the first floating groove, and the flow channel, thereby introducing back pressure on the back of the moving plate.

[0052] Since one end of the pressure tapping tube is inserted into the first floating groove, and the pressure tapping tube can move axially within the first floating groove, that is, during the transportation, assembly and operation of the compressor, the pressure tapping tube can float axially relative to the support frame, giving the pressure tapping assembly axial flexibility, preventing damage to the pressure tapping assembly and gas leakage during pressure tapping, which is beneficial to improving the reliability of the compressor.

[0053] In some technical solutions, the compressor may optionally include a partition plate, which is disposed inside the housing and divides the housing into an intake chamber and an exhaust chamber. The partition plate is provided with a pressure tapping hole, and the end of the pressure tapping pipe away from the first end is inserted into the pressure tapping hole and connected to the partition plate. The first channel is in communication with the exhaust chamber.

[0054] This technical solution specifies one type of pressure tapping method. Specifically, since one end of the pressure tapping pipe is inserted into the pressure tapping hole on the partition plate and connected to the partition plate, and the first channel of the pressure tapping pipe is connected to the exhaust chamber, high pressure is introduced into the second back pressure chamber through the exhaust chamber. The high pressure can apply axial force to the moving plate to push the moving plate to mesh and seal with the stationary plate, which is beneficial to improving the sealing performance between the moving plate and the stationary plate volutes. Moreover, since the second back pressure chamber acts on the back side of the moving plate, the high pressure can make the moving plate float, thereby reducing the friction between the moving plate and the thrust surface, significantly reducing frictional power consumption, and improving the energy efficiency of the compressor.

[0055] In some technical solutions, the pressure tapping assembly may optionally include a limiting structure. The limiting structure is located at the end of the pressure tapping tube away from the first end and is located outside the pressure tapping tube. The limiting structure is located inside the air intake chamber along the axial direction of the moving disc, and at least a portion of the limiting structure is disposed opposite to the partition plate.

[0056] In this technical solution, the pressure-sensing assembly is further defined as including a limiting structure. Specifically, a limiting structure is provided at the end of the pressure-sensing tube away from the first end. The limiting structure is located on the outside of the pressure-sensing tube and inside the air intake chamber.

[0057] Since at least part of the limiting structure and the partition plate are axially opposite each other, the pressure tapping pipe can be limited, preventing the pressure tapping pipe from separating from the first end due to excessive axial movement, or from interfering with the inner wall of the housing due to the pressure tapping pipe extending too far into the exhaust chamber. This helps to further improve the reliability of the compressor.

[0058] In some technical solutions, optionally, the pressure-sensing channel further includes a second channel, one end of which is connected to at least one of the first back pressure chamber and the exhaust channel. The pressure-sensing assembly also includes a second end, which is connected to the stationary disc assembly. The second channel is located at the second end, which is provided with a second floating groove. The other end of the second channel is connected to the second floating groove, and the first channel is connected to the second floating groove. The end of the pressure-sensing tube away from the first end is inserted into the second floating groove and is able to move along the axial direction of the moving disc within the second floating groove.

[0059] In this technical solution, the pressure-inducing assembly is further defined as including a second end. Specifically, the pressure-inducing channel includes a first channel and a second channel. The first channel is located in the pressure-inducing pipe, and the second channel is located in the second end. One end of the first channel is connected to the first floating groove, and the other end of the first channel is connected to the second floating groove. One end of the second channel is connected to at least one of the first back pressure chamber and the exhaust channel, and the other end of the second channel is connected to the second floating groove. That is to say, during the operation of the compressor, medium-pressure or high-pressure gas flows into the second back pressure chamber sequentially through the second channel, the second floating groove, the first channel, the first floating groove, and the flow passage, thereby introducing back pressure on the back of the moving plate.

[0060] Since the end of the pressure tapping tube furthest from the first end is inserted into the second floating groove, and the pressure tapping tube can move axially within the second floating groove, that is, during the transportation, assembly and operation of the compressor, the pressure tapping tube can float axially relative to the support frame and stationary plate assembly, giving the pressure tapping assembly axial flexibility, preventing damage to the pressure tapping assembly and gas leakage during pressure tapping, which is beneficial to improving the reliability of the compressor.

[0061] In some technical solutions, optionally, the exhaust channel includes an exhaust port, the stationary disc assembly includes a stationary disc, the stationary disc and the moving disc form a compression chamber, the exhaust port is located on the stationary disc, one end of the exhaust port is connected to the compression chamber, the other end of the exhaust port can be connected to the exhaust chamber, and the second end is connected to the stationary disc, wherein the stationary disc is provided with a first flow channel, and the two ends of the first flow channel are respectively connected to the second channel and the exhaust port.

[0062] This technical solution specifies a second pressure-inducing method. Specifically, the stationary disc assembly includes a stationary disc, and the stationary disc and the moving disc form a compression chamber. The exhaust port is located on the stationary disc, and its two ends are connected to the compression chamber and the exhaust chamber, respectively. Specifically, during compressor operation, the moving disc rotates relative to the stationary disc assembly to compress the refrigerant in the compression chamber. When the pressure of the compressed refrigerant reaches the exhaust pressure, the high-temperature, high-pressure refrigerant flows through the exhaust port to the exhaust chamber and is then discharged outside the casing, completing the compression and exhaust process.

[0063] Since the first flow channel connects to the exhaust port, high pressure is introduced into the second back pressure chamber. This high pressure can apply axial force to the moving plate, pushing it to mesh and seal with the stationary plate, which helps improve the sealing performance between the moving and stationary plate volutes. Moreover, since the second back pressure chamber acts on the back of the moving plate, the high pressure can cause the moving plate to float, thereby reducing the friction between the moving plate and the thrust surface, significantly reducing frictional power consumption, and improving the compressor's energy efficiency.

[0064] Optionally, at least a portion of the first flow channel extends radially along the stationary disk.

[0065] In some technical solutions, optionally, the exhaust passage includes a buffer chamber, which is connected to the exhaust chamber. The stationary disc assembly includes a stationary disc and a back pressure plate, wherein the stationary disc and the moving disc form a compression chamber, the second end is connected to the stationary disc, the back pressure plate is located on the side of the stationary disc away from the moving disc, the buffer chamber is located between the side of the stationary disc away from the moving disc and the back pressure plate, and the compression chamber can communicate with the buffer chamber; the stationary disc is provided with a second flow channel, one end of the second flow channel is connected to a second channel, and the other end of the second flow channel is connected to the buffer chamber.

[0066] This technical solution specifies a third pressure-inducing method. Specifically, the stationary disc assembly includes a stationary disc and a back pressure plate. The stationary disc and the moving disc form a compression chamber. A buffer chamber is located between the side of the stationary disc away from the moving disc and the back pressure plate, and the compression chamber can communicate with the buffer chamber. Specifically, during compressor operation, the moving disc rotates relative to the stationary disc assembly to compress the refrigerant in the compression chamber. When the pressure of the compressed refrigerant reaches the discharge pressure, the high-temperature, high-pressure refrigerant flows from the compression chamber into the buffer chamber, then into the discharge chamber, and finally out of the casing, completing the compression and discharge process. Optionally, the stationary disc is also provided with an exhaust port, and the compression chamber can communicate with the buffer chamber via the exhaust port.

[0067] Because the second flow channel connects to the buffer chamber, introducing high pressure into the second back pressure chamber, the high pressure can apply axial force to the moving plate, thereby pushing the moving plate to mesh and seal with the stationary plate, which helps improve the sealing performance between the moving and stationary plate volutes. Moreover, since the second back pressure chamber acts on the back side of the moving plate, the high pressure can make the moving plate float, thereby reducing the friction between the moving plate and the thrust surface, significantly reducing frictional power consumption, and improving the compressor's energy efficiency.

[0068] In some technical solutions, optionally, the stationary disk assembly includes a stationary disk, a back pressure plate, and a float assembly. The stationary disk and the moving disk form a compression cavity. The second end is connected to the stationary disk. The stationary disk is provided with a third flow channel, which is connected to the second channel. The back pressure plate is located on the side of the stationary disk away from the moving disk. The side of the back pressure plate away from the moving disk and the stationary disk form a recess. The back pressure plate is provided with a through hole. One end of the through hole is connected to the recess, and the other end of the through hole is connected to the third flow channel. The float assembly is movably located in the recess and forms a first back pressure cavity with the inner wall of the recess.

[0069] This technical solution defines a fourth pressure-inducing method. Specifically, the stationary disk assembly includes a stationary disk, a back pressure plate, and a float plate assembly. The side of the back pressure plate opposite to the moving disk and the stationary disk form a recess. The float plate assembly is movably disposed within the recess, and the float plate assembly and the inner wall of the recess enclose a first back pressure cavity. Since the two ends of the through-hole in the back pressure plate are respectively connected to the recess and the third flow channel, intermediate pressure can be introduced into the second back pressure cavity.

[0070] The intermediate pressure can apply axial force to the moving plate to push it to engage and seal with the stationary plate, which helps improve the sealing performance between the moving and stationary plate volutes. Moreover, since the second back pressure chamber acts on the back of the moving plate, the intermediate pressure can make the moving plate float, thereby reducing the friction between the moving plate and the thrust surface, significantly reducing frictional power consumption, and improving the compressor's energy efficiency.

[0071] In some technical solutions, the compressor may optionally include a second seal, which is disposed between the pressure tapping tube and the wall of the first floating groove along the radial direction of the moving disc, and / or the second seal is disposed between the pressure tapping tube and the wall of the second floating groove.

[0072] In this technical solution, by setting a second seal, the pressure tapping channel can be kept sealed while the pressure tapping pipe floats up and down, preventing gas leakage during the introduction of medium or high pressure into the second back pressure chamber, which is beneficial to improving the reliability of the compressor. At the same time, it helps to ensure the effective introduction of back pressure on the back of the moving plate, realize bidirectional floating, reduce frictional power consumption, and improve the sealing between the volutes of the moving plate and stationary plate assembly, thereby improving the energy efficiency of the compressor.

[0073] In some technical solutions, the compressor may optionally include a guide assembly connected to a support frame, and a stationary disc assembly movably connected to the guide assembly.

[0074] In this technical solution, the compressor is further defined as including a guide assembly. Specifically, the guide assembly is connected to the support frame, and the stationary disc assembly is movably connected to the guide assembly. That is to say, during the operation of the compressor, the stationary disc assembly can make slight axial or radial movements along the guide assembly to remove impurities and improve its reliability.

[0075] In some technical solutions, the guide assembly optionally includes a connector, a guide post, and a limiting member. The connector is connected to the support frame along the radial direction of the moving disk. The guide post is located on the outside of the connector. The stationary disk assembly also includes a guide channel. The guide post passes through the guide channel along the axial direction of the moving disk. The channel wall of the guide channel is slidably engaged with the guide post. Along the axial direction of the moving disk, the limiting member is located between the guide post and the connector and is located on the side of the stationary disk assembly opposite to the moving disk.

[0076] In this technical solution, the specific structure of the guide assembly is defined. Specifically, the guide assembly includes a connector, a guide post, and a limiting member. The connector is connected to the support frame, and the guide post is located on the radial outer side of the connector. The guide post slides in conjunction with the guide channel of the stationary plate assembly. In other words, during the operation of the compressor, the stationary plate assembly can make small axial or radial movements through the guide post, which is beneficial to improving the reliability of the compressor.

[0077] The limiting component is located between the guide column and the connecting component, and is situated on the side of the stationary disc assembly away from the moving disc, thereby limiting the axial floating distance of the stationary disc assembly, which helps to further improve the reliability of the compressor.

[0078] According to a second aspect of this utility model, a refrigeration device is provided, including a compressor as provided in any of the above technical solutions, and thus possesses all the beneficial technical effects of the compressor, which will not be repeated here.

[0079] Additional aspects and advantages of the present invention will be set forth in the description which follows, in part will be obvious from the description, or may be learned by practice of the present invention. Attached Figure Description

[0080] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0081] Figure 1 One of the partial structural schematic diagrams of a compressor according to an embodiment of the present invention is shown;

[0082] Figure 2 A second partial structural schematic diagram of a compressor according to an embodiment of the present invention is shown;

[0083] Figure 3 A third schematic diagram of a partial structure of a compressor according to an embodiment of the present invention is shown;

[0084] Figure 4 A fourth partial structural schematic diagram of a compressor according to an embodiment of the present invention is shown;

[0085] Figure 5Fifth schematic diagram of a partial structure of a compressor according to an embodiment of the present invention is shown;

[0086] Figure 6 A partial structural schematic diagram of a compressor according to an embodiment of the present invention is shown in diagram six;

[0087] Figure 7 One of the structural schematic diagrams of a support frame according to an embodiment of the present invention is shown;

[0088] Figure 8 A second schematic diagram of the support frame according to an embodiment of the present invention is shown.

[0089] in, Figures 1 to 8 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0090] 100 Compressor, 110 Housing, 111 Intake Chamber, 112 Exhaust Chamber, 120 Compression Mechanism, 121 Moving Disc, 122 Stationary Disc Assembly, 123 Compression Chamber, 124 Exhaust Passage, 125 Contact Surface, 126 Exhaust Port, 127 Buffer Chamber, 128 Guide Passage, 130 First Back Pressure Chamber, 140 Support Frame, 141 Thrust Surface, 142 Connecting Hole, 143 Groove, 144 Flow Passage, 145 First Flow Path, 146 Second Flow Path, 147 Third Flow Path, 150 Second Back Pressure Chamber, 160 Sealing Groove, 161 First Sealing Groove, 162 Second Sealing Groove, 170 First Seal, 180 Elasticity Components: 190 Pressure tapping assembly, 191 Pressure tapping channel, 192 First channel, 193 Second channel, 194 Pressure tapping tube, 195 First end, 196 First floating groove, 197 Second end, 198 Second floating groove, 199 Limiting structure, 210 Second seal, 220 Static plate, 221 First flow channel, 222 Second flow channel, 223 Third flow channel, 224 Recess, 230 Back pressure plate, 231 Through hole, 240 Floating plate assembly, 250 Divider plate, 251 Pressure tapping hole, 260 Guide assembly, 261 Connector, 262 Guide post, 263 Limiting component, 290 Third seal, 310 Cross slip ring. Detailed Implementation

[0091] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0092] Many specific details are set forth in the following description in order to provide 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 scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0093] The following reference Figures 1 to 8 This invention describes a compressor 100 and a refrigeration device provided according to some embodiments of the present invention.

[0094] In one embodiment according to this application, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, a compressor 100 is proposed, comprising: a housing 110, the housing 110 including an intake chamber 111 and an exhaust chamber 112; and a compression mechanism 120 disposed within the intake chamber 111, the compression mechanism 120 including a moving disc 121 and a stationary disc assembly 122, the moving disc 121 and the stationary disc assembly 122 forming a compression chamber 123, the stationary disc assembly 122 including an exhaust passage 124, and the compression chamber 123 being able to communicate with the exhaust chamber 112 through the exhaust passage 124. The first back pressure chamber 130 is located on the side of the stationary disc assembly 122 away from the moving disc 121 and can communicate with the compression chamber 123; the support frame 140 is located in the intake chamber 111 and on the side of the moving disc 121 away from the stationary disc assembly 122, and is used to support the moving disc 121; the second back pressure chamber 150 is located between the moving disc 121 and the support frame 140, and at least one of the first back pressure chamber 130, the exhaust passage 124 and the exhaust chamber 112 communicates with the second back pressure chamber 150.

[0095] The compressor 100 provided in this embodiment includes a housing 110, a compression mechanism 120, a first back pressure chamber 130, a support frame 140, and a second back pressure chamber 150. Specifically, the stationary disk assembly 122 and the moving disk 121 form a compression chamber 123. Since the stationary disk assembly 122 includes an exhaust channel 124, the compression chamber 123 can communicate with the exhaust chamber 112 through the exhaust channel 124. Specifically, during the operation of the compressor 100, the moving disk 121 rotates relative to the stationary disk assembly 122 to compress the refrigerant in the compression chamber 123. When the pressure of the compressed refrigerant reaches the exhaust pressure, the high-temperature and high-pressure refrigerant flows through the exhaust channel 124 to the exhaust chamber 112 and is then discharged outside the housing 110, completing the compression and exhaust process.

[0096] Optionally, the stationary disk assembly 122 includes a stationary disk 220, a back pressure plate 230, and a float assembly 240. The stationary disk 220 is provided with an exhaust port 126, and a buffer chamber 127 is disposed between the side of the stationary disk 220 away from the moving disk 121 and the back pressure plate 230. The exhaust port 126 and the buffer chamber 127 form an exhaust channel 124. The float assembly 240, the back pressure plate 230, and the stationary disk 220 together form a first back pressure chamber 130.

[0097] Since the first back pressure chamber 130 is located on the side of the stationary disc assembly 122 away from the moving disc 121 and can communicate with the compression chamber 123, when the compressor 100 is running, intermediate pressure can be introduced into the first back pressure chamber 130. This intermediate pressure can apply an axial force to the stationary disc assembly 122 in the axial direction to push the stationary disc assembly 122 to engage and seal with the moving disc 121.

[0098] Meanwhile, since the second back pressure chamber 150 is located between the moving plate 121 and the support frame 140, and the second back pressure chamber 150 can communicate with at least one of the first back pressure chamber 130, the exhaust passage 124, and the exhaust chamber 112, medium or high pressure can be introduced into the second back pressure chamber 150 during the operation of the compressor 100. This medium or high pressure can apply an axial force to the moving plate 121 to push the moving plate 121 to engage and seal with the stationary plate assembly 122. In other words, the compressor 100 is a dual floating compressor.

[0099] By setting the first back pressure chamber 130 and the second back pressure chamber 150, axial forces can be applied to the stationary disk assembly 122 and the moving disk 121 on both sides of the axial direction, so that the volutes of the stationary disk assembly 122 and the moving disk 121 mesh tightly, increasing the sealing performance of the tooth top and tooth bottom, reducing leakage, which is beneficial to improving the energy efficiency of the compressor 100. Compared with the related technology of reducing leakage between the volutes by adjusting the tooth height difference between the moving and stationary volutes, the manufacturing process is simplified and the manufacturing precision of the moving disk 121 and the stationary disk assembly 122 is reduced.

[0100] Furthermore, since the second back pressure chamber 150 is located between the side of the moving plate 121 away from the stationary plate assembly 122 and the support frame 140, that is, the second back pressure chamber 150 acts on the back side of the moving plate 121, the moving plate 121 can float, thereby reducing the friction between the moving plate 121 and the thrust surface 141, significantly reducing frictional power consumption, and improving the energy efficiency of the compressor 100.

[0101] It can be understood that when the second back pressure chamber 150 is connected to the first back pressure chamber 130, medium pressure is introduced into the second back pressure chamber 150. When the second back pressure chamber 150 is connected to the exhaust passage 124 and / or the exhaust chamber 112, high pressure is introduced into the second back pressure chamber 150. The specific settings can be configured according to actual needs.

[0102] In addition, the support frame 140 is located on the side of the moving plate 121 away from the stationary plate assembly 122, and the support frame 140 is used to support the moving plate 121, which helps to improve the reliability of the compressor 100.

[0103] Optionally, the support frame 140 includes a thrust surface 141, with a groove 143 on the thrust surface 141. The groove wall of the groove 143 and the side of the moving plate 121 facing away from the stationary plate assembly 122 enclose each other to form a second back pressure cavity 150. Alternatively, the side of the moving plate 121 facing away from the stationary plate assembly 122 has a groove, and the groove wall of the groove and the thrust surface 141 enclose each other to form the second back pressure cavity 150. Alternatively, the side of the moving plate 121 facing away from the stationary plate assembly 122 has a first groove, and the thrust surface 141 has a second groove, with the groove walls of the first groove and the groove walls of the second groove enclosing each other to form the second back pressure cavity 150. The specific configuration can be adjusted according to actual needs.

[0104] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, in some embodiments, the compressor 100 may optionally include a sealing groove 160 and a first seal 170, wherein the sealing groove 160 is disposed on at least one of the moving plate 121 and the support frame 140, the sealing groove 160 is located on at least one side of the second back pressure chamber 150 along the radial direction of the moving plate 121, and at least a portion of the first seal 170 is located within the sealing groove 160.

[0105] In this embodiment, the compressor 100 further includes a sealing groove 160 and a first seal 170. Specifically, the sealing groove 160 is disposed on the moving plate 121, or the sealing groove 160 is disposed on the support frame 140, or a portion of the sealing groove 160 is disposed on the moving plate 121 and another portion is disposed on the support frame 140. The specific configuration can be adjusted according to actual needs.

[0106] Along the radial direction of the moving plate 121, the sealing groove 160 is located on at least one side of the second back pressure cavity 150. Specifically, the sealing groove 160 may be located radially inner to the second back pressure cavity 150, or radially outer to the second back pressure cavity 150, or sealing grooves 160 may be provided on both radially sides of the second back pressure cavity 150. The specific configuration can be determined according to actual needs.

[0107] Since at least a portion of the first seal 170 is located within the sealing groove 160, the second back pressure chamber 150 can be sealed on at least one side radially in the second back pressure chamber 150, forming a sealed cavity. This provides reliable back pressure to the moving plate 121, increasing the sealing between the stationary plate assembly 122 and the moving plate 121, reducing leakage, and allowing the moving plate 121 to float, reducing frictional power consumption and improving the energy efficiency of the compressor 100.

[0108] In some embodiments, optionally, the depth of the sealing groove 160 along the axial direction of the moving disk 121 is greater than the depth of the second back pressure chamber 150.

[0109] In this embodiment, since the axial depth of the sealing groove 160 is greater than the axial depth of the second back pressure chamber 150, that is, the axial depth of the sealing groove 160 is set to be deeper, it can effectively seal the second back pressure chamber 150 while limiting the first seal 170, thus preventing the first seal 170 from affecting the introduction of back pressure and causing sealing failure due to positional movement, which is beneficial to improving the reliability of the compressor 100.

[0110] Optionally, when there are two sealing grooves 160, and the two sealing grooves 160 are located on the radial sides of the second back pressure cavity 150 respectively, since each sealing groove 160 is provided with a first sealing element 170, the axial depth of each sealing groove 160 is greater than the axial depth of the second back pressure cavity 150.

[0111] In some embodiments, the sealing groove 160 is optionally connected to the second back pressure chamber 150.

[0112] In this embodiment, since the sealing groove 160 is connected to the second back pressure chamber 150, on the one hand, the volume of the back pressure introduced on the back of the moving disk 121 can be increased, thereby increasing the back pressure and allowing the moving disk 121 to float effectively, further reducing frictional power consumption. At the same time, it increases the sealing performance between the moving disk 121 and the stationary disk assembly 122. On the other hand, since at least a portion of the first seal 170 is located within the sealing groove 160, the back pressure introduced into the second back pressure chamber 150 can apply a certain radial force to the first seal 170, which is beneficial to further improve the sealing effect of the second back pressure chamber 150.

[0113] like Figure 7 and Figure 8 As shown, in some embodiments, the support frame 140 may optionally include a thrust surface 141 for supporting the moving plate 121; wherein the thrust surface 141 is provided with a groove 143, and the side of the moving plate 121 facing away from the stationary plate assembly 122 is surrounded by the groove wall of the groove 143 to form a second back pressure cavity 150.

[0114] In this embodiment, the second back pressure chamber 150 acts on the back side of the moving plate 121, which can make the moving plate 121 float, thereby reducing the friction between the moving plate 121 and the thrust surface 141, significantly reducing frictional power consumption, and improving the energy efficiency of the compressor 100.

[0115] Moreover, the groove 143 is provided on the thrust surface 141. Compared with providing the groove 143 on the moving plate 121, it can help ensure the structural strength of the moving plate 121 and improve the reliability of the compressor 100 while introducing back pressure on the back of the moving plate 121.

[0116] Alternatively, the groove 143 is configured as an annular groove, i.e., the second back pressure chamber 150 is formed as an annular sealed cavity.

[0117] like Figure 7 As shown, in some embodiments, optionally, a sealing groove 160 is provided on the thrust surface 141. The number of sealing grooves 160 is two, namely a first sealing groove 161 and a second sealing groove 162. Along the radial direction of the moving disk 121, the first sealing groove 161 and the second sealing groove 162 are respectively located on both sides of the groove 143. The width of the first sealing groove 161 is t1, the width of the second sealing groove 162 is t2, the width of the groove 143 is t3, the width of the thrust surface 141 is T, and (t1+t2+t3) / T≤0.5.

[0118] In this embodiment, since the sealing groove 160 is provided on the thrust surface 141, and there are two sealing grooves 160. Specifically, the two sealing grooves 160 are the first sealing groove 161 and the second sealing groove 162, it can be understood that there are also two first sealing elements 170, and the two first sealing elements 170 are located in the first sealing groove 161 and the second sealing groove 162 respectively.

[0119] Since the first sealing groove 161 and the second sealing groove 162 are located on both sides of the radial direction of the groove 143, and the first sealing element 170 is provided in the first sealing groove 161 and the second sealing groove 162 respectively, it is beneficial to further improve the sealing performance of the second back pressure chamber 150, so that the second back pressure chamber 150 forms a sealed cavity, thereby providing reliable back pressure for the moving plate 121. While increasing the sealing performance between the stationary plate assembly 122 and the moving plate 121 and reducing leakage, the moving plate 121 floats up, reducing frictional power consumption and improving the energy efficiency of the compressor 100.

[0120] It is understandable that if (t1+t2+t3) / T is too large, i.e. greater than 0.5, that is, the sum of the radial widths of the first sealing groove 161, the second sealing groove 162, and the groove 143 is too large, that is, at least one of the first sealing groove 161, the second sealing groove 162, and the groove 143 is too wide, resulting in the remaining area of ​​the thrust surface 141 used to support the moving plate 121 being too small, which cannot effectively support the moving plate 121. At the same time, it is easy to cause local wear between the moving plate 121 and the thrust surface 141.

[0121] By making (t1+t2+t3) / T less than or equal to 0.5, it is possible to introduce back pressure on the back of the moving disk 121 and ensure the sealing effect of the second back pressure chamber 150, while allowing the thrust surface 141 to reserve sufficient support area. This achieves reliable support for the moving disk 121, reduces frictional power consumption, improves the sealing performance between the moving disk 121 and the volute of the stationary disk assembly 122, and prevents leakage.

[0122] Optionally, (t1+t2+t3) / T can be any one of 0.5, 0.4, 0.3 and 0.2.

[0123] like Figure 7 and Figure 8 As shown, in some embodiments, the support frame 140 may optionally include a connecting hole 142, one end of which passes through the groove 143, and the other end of which is connected to at least one of the first back pressure chamber 130, the exhaust channel 124, and the exhaust chamber 112; wherein the diameter of the connecting hole 142 is d1, and d1≤(t1+t2+t3).

[0124] In this embodiment, the support frame 140 further includes a communicating hole 142, one end of which passes through a groove 143, and the other end of which communicates with at least one of the first back pressure chamber 130, the exhaust passage 124, and the exhaust chamber 112. Optionally, when the support frame 140 includes a flow passage 144, the end of the flow passage 144 near the second back pressure chamber 150 includes the communicating hole 142.

[0125] It is understandable that if the diameter of the connecting hole 142 is too large, that is, greater than the sum of the radial width of the first sealing groove 161, the radial width of the second sealing groove 162, and the radial width of the groove 143, when the compressor 100 is running, when the medium pressure or high pressure enters the second back pressure chamber 150 through the connecting hole 142, due to the large diameter of the connecting hole 142, some of the medium pressure or high pressure will enter between the radial outer wall of the first seal 170 and the sealing groove 160, causing the first seal 170 to fail to seal the second back pressure chamber 150, resulting in the moving plate 121 being unable to float effectively, increasing frictional power consumption, and easily causing leakage between the volutes of the moving plate 121 and the stationary plate assembly 122.

[0126] Since d1≤(t1+t2+t3), that is, the diameter of the connecting hole 142 is less than or equal to the sum of the radial width of the first sealing groove 161, the radial width of the second sealing groove 162, and the radial width of the second back pressure chamber 150, during the operation of the compressor 100, it can ensure that the medium or high pressure enters the second back pressure chamber 150 through the connecting hole 142, while effectively sealing the second back pressure chamber 150, so that the moving plate 121 floats up, reducing frictional power consumption, improving the sealing performance between the moving plate 121 and the volute of the stationary plate assembly 122, which is beneficial to improving the energy efficiency of the compressor 100.

[0127] Optionally, the number of connecting holes 142 can be one or more. It is understood that when there are multiple connecting holes 142, the diameter of each connecting hole 142 is less than or equal to (t1+t2+t3).

[0128] In some embodiments, optionally, the first sealing groove 161 and the second sealing groove 162 are respectively connected to the groove 143; wherein, along the axial direction of the moving disk 121, the depth of the first sealing groove 161 and the depth of the second sealing groove 162 are both greater than the depth of the groove 143.

[0129] In this embodiment, since the first sealing groove 161 and the second sealing groove 162 are located on both sides of the radial direction of the groove 143, and the first sealing groove 161 and the second sealing groove 162 are respectively connected to the groove 143, the volume of the back pressure introduced on the back of the moving plate 121 can be further increased, thereby increasing the back pressure and allowing the moving plate 121 to float effectively, further reducing frictional power consumption. At the same time, it increases the sealing performance between the moving plate 121 and the stationary plate assembly 122. Moreover, since at least a portion of the first sealing element 170 is located within the sealing groove 160, that is, the first sealing element 170 is respectively provided in the first sealing groove 161 and the second sealing groove 162, the back pressure introduced into the second back pressure cavity 150 can apply a certain radial force to the two first sealing elements 170 respectively, which is beneficial to further improve the sealing effect of the second back pressure cavity 150.

[0130] Since the axial depth of the first sealing groove 161 and the axial depth of the second sealing groove 162 are both greater than the axial depth of the groove 143, they can limit the two first seals 170 in the first sealing groove 161 and the second sealing groove 162, thus preventing the first seals 170 from affecting the introduction of back pressure and causing sealing failure due to positional movement, which is beneficial to improving the reliability of the compressor 100.

[0131] like Figure 1 and Figure 7As shown, in some embodiments, optionally, the side of the moving disk 121 away from the stationary disk assembly 122 includes a contact surface 125 that mates with the thrust surface 141, and the contact surface 125 and the groove wall of the groove 143 enclose to form a second back pressure cavity 150; wherein, the radius of rotation of the moving disk 121 is e, the inner diameter of the thrust surface 141 is d2, the outer diameter is d3, and the portion of the diameter of the contact surface 125 between d2-2e and d3+2e is constructed as a plane.

[0132] In this embodiment, since the diameter of the contact surface 125 between d2-2e and d3+2e is constructed as a plane, that is, the back of the moving disk 121 between d2-2e and d3+2e is a plane, it is beneficial to further improve the sealing performance of the second back pressure chamber 150, ensure that the moving disk 121 can float effectively, thereby reducing frictional power consumption and improving the sealing performance between the moving disk 121 and the volute of the stationary disk assembly 122.

[0133] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, in some embodiments, the compressor 100 may optionally include an elastic element 180, which is disposed between the first seal 170 and the groove wall of the sealing groove 160 along the axial direction of the moving disc 121.

[0134] In this embodiment, since the compressor 100 also includes an elastic element 180, and along the axial direction of the moving plate 121, the elastic element 180 is disposed between the first seal 170 and the groove wall of the sealing groove 160, that is, the elastic element 180 is disposed between the first seal 170 and the bottom wall of the sealing groove 160.

[0135] Because an elastic element 180 is provided between the first seal 170 and the bottom wall of the sealing groove 160, the first seal 170 can be pushed towards the side where the moving disk 121 is located under the action of the elastic force of the elastic element 180, so that the first seal 170 is tightly attached to the back of the moving disk 121. This helps to further improve the sealing effect of the second back pressure chamber 150, ensure that the moving disk 121 can float effectively, thereby reducing frictional power consumption and improving the sealing performance between the moving disk 121 and the volute of the stationary disk assembly 122.

[0136] Optionally, the elastic element 180 includes a wave spring or a spring washer.

[0137] Optionally, when there are two sealing grooves 160 and each sealing groove 160 is provided with a first sealing element 170, there are also two elastic elements 180. Along the axial direction of the moving disk 121, each elastic element 180 is located between a first sealing element 170 and the groove wall of a sealing groove 160.

[0138] In some embodiments, the sealing groove 160 is optionally configured as an annular sealing groove; and / or the first seal 170 includes a self-lubricating element; and / or the first seal 170 includes a wear-resistant element.

[0139] In this embodiment, the sealing groove 160 is an annular sealing groove. It can be understood that the first sealing element 170 is an annular sealing element, which is beneficial to further improve the sealing effect of the second back pressure chamber 150, so that the second back pressure chamber 150 forms a sealed cavity, thereby providing reliable back pressure for the moving plate 121. While increasing the sealing between the stationary plate assembly 122 and the moving plate 121 and reducing leakage, the moving plate 121 can be effectively floated, reducing frictional power consumption and improving the energy efficiency of the compressor 100.

[0140] The first seal 170 is a self-lubricating component, meaning it is made of a self-lubricating material, thus giving it excellent self-lubricating properties. Since the first seal 170 contacts the back of the moving disc 121, making it a self-lubricating component helps to further reduce frictional power consumption, extend its service life, ensure reliable sealing of the second back pressure chamber 150, and improve the reliability of the compressor 100.

[0141] The first seal 170 is a wear-resistant component, meaning it is made of wear-resistant material, thus giving it excellent wear resistance. Since the first seal 170 contacts the back of the moving disc 121, making it a wear-resistant component helps extend its service life, ensures reliable sealing of the second back pressure chamber 150, and improves the reliability of the compressor 100.

[0142] Optionally, the first seal 170 is made of PTFE (polytetrafluoroethylene) material, thereby giving the first seal 170 both self-lubricating and wear-resistant properties.

[0143] like Figure 7 As shown, in some embodiments, optionally, the depth of the second back pressure chamber 150 along the axial direction of the moving disk 121 is h, wherein h ≥ 0.5 mm.

[0144] In this embodiment, since the axial depth of the second back pressure chamber 150 is greater than or equal to 0.5 mm, it is understood that if the axial depth of the second back pressure chamber 150 is too shallow, i.e. less than 0.5 mm, then when the compressor 100 is running, the back pressure applied to the back of the moving plate 121 is too small, which cannot make the moving plate 121 float effectively, increasing frictional power consumption and increasing the risk of leakage between the moving plate 121 and the stationary plate assembly 122 volutes, thus affecting the energy efficiency of the compressor 100.

[0145] By ensuring that the axial depth of the second back pressure chamber 150 is greater than or equal to 0.5 mm, it is ensured that when the compressor 100 is running, the back pressure applied to the back of the moving plate 121 can effectively float the moving plate 121, reduce frictional power consumption, improve the sealing between the moving plate 121 and the volute of the stationary plate assembly 122, and thus improve the energy efficiency of the compressor 100.

[0146] Optionally, h can be any one of 0.5mm, 0.6mm, 0.7mm and 0.8mm.

[0147] like Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments, the compressor 100 may optionally include a pressure-drawing assembly 190, which is disposed in the intake chamber 111 and connected to the support frame 140. The pressure-drawing assembly 190 includes a pressure-drawing channel 191, one end of which is connected to at least one of the first back pressure chamber 130, the exhaust channel 124, and the exhaust chamber 112. The support frame 140 also includes a flow channel 144, one end of which is connected to the other end of the pressure-drawing channel 191, and the other end of which is connected to the second back pressure chamber 150.

[0148] In this embodiment, the pressure-inducing assembly 190 includes a pressure-inducing channel 191, and the support frame 140 includes a flow passage 144. One end of the pressure-inducing channel 191 is connected to at least one of the first back pressure chamber 130, the exhaust passage 124, and the exhaust chamber 112, and the other end of the pressure-inducing channel 191 is connected to the flow passage 144. The flow passage 144 is connected to the second back pressure chamber 150, thereby introducing medium or high pressure onto the back of the moving plate 121. Specifically, during the operation of the compressor 100, since medium or high pressure can be introduced into the second back pressure chamber 150, this medium or high pressure can apply an axial force to the moving plate 121 to push the moving plate 121 to engage and seal with the stationary plate assembly 122.

[0149] Furthermore, since the second back pressure chamber 150 acts on the back side of the moving plate 121, the moving plate 121 can float, thereby reducing the friction between the moving plate 121 and the thrust surface 141, significantly reducing frictional power consumption, improving the sealing performance between the moving plate 121 and the stationary plate 220 volutes, and improving the energy efficiency of the compressor 100.

[0150] Furthermore, since the pressure-applying assembly 190 is located inside the intake chamber 111, that is, the pressure-applying assembly 190 is located outside the compression mechanism 120. Moreover, since the pressure-applying assembly 190 is located outside the compression mechanism 120, while achieving the introduction of back pressure from the back of the moving disc 121 to increase the sealing between the moving disc 121 and the stationary disc assembly 122 and reduce frictional power consumption, it can reduce the overall structural modifications to the compression mechanism 120 compared to placing the pressure-applying channel 191 inside the compression mechanism 120.

[0151] like Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments, optionally, the flow channel 144 includes a first flow path 145, a second flow path 146, and a third flow path 147, wherein the first flow path 145 is connected to the pressure channel 191 and extends at least partially along the axial direction of the moving disk 121, the second flow path 146 is connected to the second back pressure chamber 150 and extends at least partially along the axial direction of the moving disk 121, the third flow path 147 is located between the first flow path 145 and the second flow path 146 and extends at least partially along the radial direction of the moving disk 121, and the two ends of the third flow path 147 are connected to the first flow path 145 and the second flow path 146, respectively.

[0152] In this embodiment, the flow channel 144 is defined as including a first flow path 145, a second flow path 146, and a third flow path 147. Specifically, the first flow path 145 and the second flow path 146 extend along the axial direction of the moving plate 121, and the third flow path 147 extends along the radial direction of the moving plate 121. That is, during the operation of the compressor 100, medium-pressure or high-pressure gas flows into the second back pressure chamber 150 in sequence through the pressure-inducing channel 191, the first flow path 145, the third flow path 147, and the second flow path 146, thereby introducing back pressure on the back of the moving plate 121.

[0153] In some embodiments, the pressure assembly 190 is optionally floatingly connected to the support frame 140.

[0154] In this embodiment, since the pressure-pressing assembly 190 is floatingly connected to the support frame 140, that is, at least a part of the pressure-pressing assembly 190 can move relative to the support frame 140, it can play a buffering role during the transportation or assembly of the compressor 100, preventing damage to the pressure-pressing assembly 190 and gas leakage during pressure pressing, which is beneficial to improving the reliability of the compressor 100.

[0155] Furthermore, since the stationary disc assembly 122 can float slightly relative to the support frame 140 during compressor 100 operation, and with the stationary disc assembly 122 connected to the other end of the pressure-applying assembly 190, the pressure-applying assembly 190 is floatingly connected to the support frame 140. This means that the floating of the pressure-applying assembly 190 matches the slight movement of the stationary disc assembly 122, thus providing a buffering effect during compressor 100 operation, ensuring the sealing of the pressure-applying channel 191, and thereby ensuring the introduction of back pressure on the back of the moving disc 121, achieving bidirectional floating.

[0156] like Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in some embodiments, optionally, the pressure channel 191 includes a first channel 192, one end of which is connected to at least one of the first back pressure chamber 130, the exhaust channel 124, and the exhaust chamber 112. The pressure assembly 190 includes a pressure tube 194 and a first end 195, wherein the first channel 192 is disposed in the pressure tube 194, the first end 195 is connected to the support frame 140, the first end 195 is provided with a first floating groove 196, the first floating groove 196 is connected to the flow channel 144, the other end of the first channel 192 is connected to the first floating groove 196, one end of the pressure tube 194 is inserted into the first floating groove 196, and can move along the axial direction of the moving plate 121 within the first floating groove 196.

[0157] In this embodiment, the pressure-sensing assembly 190 is defined as including a pressure-sensing pipe 194 and a first end 195. Specifically, the first end 195 is connected to the support frame 140. A first channel 192 is provided in the pressure-sensing pipe 194. Since one end of the first channel 192 is connected to at least one of the first back pressure chamber 130, the exhaust channel 124, and the exhaust chamber 112, and the other end of the first channel 192 is connected to the first floating groove 196, and the first floating groove 196 is connected to the flow channel 144, that is, during the operation of the compressor 100, medium-pressure or high-pressure gas flows into the second back pressure chamber 150 in sequence through the first channel 192, the first floating groove 196, and the flow channel 144, thereby introducing back pressure on the back of the moving plate 121.

[0158] Since one end of the pressure tapping pipe 194 is inserted into the first floating groove 196, and the pressure tapping pipe 194 can move axially within the first floating groove 196, that is, during the transportation, assembly and operation of the compressor 100, the pressure tapping pipe 194 can float axially relative to the support frame 140, so that the pressure tapping assembly 190 has axial flexibility, preventing damage to the pressure tapping assembly 190 and gas leakage during pressure tapping, which is beneficial to improving the reliability of the compressor 100.

[0159] Optionally, the compressor 100 also includes a third seal 290 disposed at the connection between the support frame 140 and the first end 195 to improve the sealing performance of the pressure channel 191.

[0160] like Figure 6 As shown, in some embodiments, the compressor 100 may optionally include a partition plate 250, which is disposed inside the housing 110 and divides the housing 110 into an intake chamber 111 and an exhaust chamber 112. The partition plate 250 is provided with a pressure-sensing hole 251, and one end of the pressure-sensing pipe 194 away from the first end 195 is inserted into the pressure-sensing hole 251 and connected to the partition plate 250. The first channel 192 communicates with the exhaust chamber 112.

[0161] In this embodiment, one pressure-applying method is specified. Specifically, since one end of the pressure-applying pipe 194 is inserted into the pressure-applying hole 251 on the partition plate 250 and connected to the partition plate 250, and the first channel 192 of the pressure-applying pipe 194 is connected to the exhaust chamber 112, that is, high pressure is introduced into the second back pressure chamber 150 through the exhaust chamber 112. The high pressure can apply axial force to the moving plate 121 in the axial direction to push the moving plate 121 to engage and seal with the stationary plate 220, which is beneficial to improving the sealing performance between the volutes of the moving plate 121 and the stationary plate 220. Moreover, since the second back pressure chamber 150 acts on the back side of the moving plate 121, the high pressure can make the moving plate 121 float, thereby reducing the friction between the moving plate 121 and the thrust surface 141, significantly reducing frictional power consumption, and improving the energy efficiency of the compressor 100.

[0162] like Figure 6 As shown, in some embodiments, optionally, the pressure-feeding assembly 190 further includes a limiting structure 199, which is disposed at the end of the pressure-feeding tube 194 away from the first end 195 and located outside the pressure-feeding tube 194. The limiting structure 199 is located inside the air intake chamber 111 along the axial direction of the moving disc 121, and at least a portion of the limiting structure 199 is disposed opposite to the partition plate 250.

[0163] In this embodiment, the pressure-feeding assembly 190 is further defined as including a limiting structure 199. Specifically, the limiting structure 199 is provided at the end of the pressure-feeding tube 194 away from the first end 195. The limiting structure 199 is located outside the pressure-feeding tube 194 and inside the air intake chamber 111.

[0164] Since at least part of the limiting structure 199 and the partition plate 250 are arranged opposite each other in the axial direction, the pressure tapping pipe 194 can be limited, preventing the pressure tapping pipe 194 from separating from the first end 195 due to excessive axial movement, or preventing the pressure tapping pipe 194 from extending too far into the exhaust chamber 112 and interfering with the inner wall of the housing 110, which is beneficial to further improve the reliability of the compressor 100.

[0165] like Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments, optionally, the pressure channel 191 further includes a second channel 193, one end of which is connected to at least one of the first back pressure chamber 130 and the exhaust channel 124. The pressure assembly 190 further includes a second end 197, which is connected to the stationary disk assembly 122. The second channel 193 is disposed at the second end 197, which is provided with a second floating groove 198. The other end of the second channel 193 is connected to the second floating groove 198. The first channel 192 is connected to the second floating groove 198. The pressure tube 194 is inserted into the second floating groove 198 at one end away from the first end 195 and is able to move along the axial direction of the moving disk 121 within the second floating groove 198.

[0166] In this embodiment, the pressure-inducing assembly 190 further includes a second end 197. Specifically, the pressure-inducing channel 191 includes a first channel 192 and a second channel 193. The first channel 192 is located at the pressure-inducing pipe 194, and the second channel 193 is located at the second end 197. One end of the first channel 192 is connected to the first floating groove 196, and the other end of the first channel 192 is connected to the second floating groove 198. One end of the second channel 193 is connected to at least one of the first back pressure chamber 130 and the exhaust channel 124, and the other end of the second channel 193 is connected to the second floating groove 198. That is, during the operation of the compressor 100, medium-pressure or high-pressure gas flows into the second back pressure chamber 150 sequentially through the second channel 193, the second floating groove 198, the first channel 192, the first floating groove 196, and the flow passage 144, thereby introducing back pressure onto the back of the moving plate 121.

[0167] Since the end of the pressure tapping pipe 194 furthest from the first end 195 is inserted into the second floating groove 198, and the pressure tapping pipe 194 can move axially within the second floating groove 198, that is, during the transportation, assembly and operation of the compressor 100, the pressure tapping pipe 194 can float axially relative to the support frame 140 and the stationary plate assembly 122, so that the pressure tapping assembly 190 has axial flexibility, preventing damage to the pressure tapping assembly 190 and gas leakage during pressure tapping, which is beneficial to improving the reliability of the compressor 100.

[0168] Optionally, at least one of the first floating groove 196 and the second floating groove 198 extends along the axial direction of the moving disk 121.

[0169] like Figure 1 and Figure 3As shown, in some embodiments, optionally, the exhaust channel 124 includes an exhaust port 126, the stationary disk assembly 122 includes a stationary disk 220, the stationary disk 220 and the moving disk 121 form a compression chamber 123, the exhaust port 126 is disposed on the stationary disk 220, one end of the exhaust port 126 is connected to the compression chamber 123, the other end of the exhaust port 126 can be connected to the exhaust chamber 112, and the second end 197 is connected to the stationary disk 220. The stationary disk 220 is provided with a first flow channel 221, and the two ends of the first flow channel 221 are respectively connected to the second channel 193 and the exhaust port 126.

[0170] In this embodiment, a second pressure-applying method is defined. Specifically, the stationary disk assembly 122 includes a stationary disk 220, which and the moving disk 121 form a compression chamber 123. An exhaust port 126 is disposed on the stationary disk 220, and the two ends of the exhaust port 126 are respectively connected to the compression chamber 123 and the exhaust chamber 112. Specifically, during the operation of the compressor 100, the moving disk 121 rotates relative to the stationary disk assembly 122 to compress the refrigerant in the compression chamber 123. When the pressure of the compressed refrigerant reaches the exhaust pressure, the high-temperature and high-pressure refrigerant flows through the exhaust port 126 to the exhaust chamber 112 and is then discharged outside the housing 110, completing the compression and exhaust process.

[0171] Since the first flow channel 221 connects to the exhaust port 126, high pressure is introduced into the second back pressure chamber 150. This high pressure can apply an axial force to the moving plate 121, thereby pushing the moving plate 121 to engage and seal with the stationary plate 220, which helps improve the sealing performance between the volutes of the moving plate 121 and the stationary plate 220. Moreover, since the second back pressure chamber 150 acts on the back side of the moving plate 121, the high pressure can make the moving plate 121 float, thereby reducing the friction between the moving plate 121 and the thrust surface 141, significantly reducing frictional power consumption, and improving the energy efficiency of the compressor 100.

[0172] Optionally, at least a portion of the first flow channel 221 extends radially along the stationary disk 220.

[0173] like Figure 4 As shown, in some embodiments, optionally, the exhaust channel 124 includes a buffer chamber 127, which is connected to the exhaust chamber 112. The stationary disc assembly 122 includes a stationary disc 220 and a back pressure plate 230, wherein the stationary disc 220 and the moving disc 121 form a compression chamber 123, and the second end 197 is connected to the stationary disc 220. The back pressure plate 230 is disposed on the side of the stationary disc 220 away from the moving disc 121, and the buffer chamber 127 is disposed between the side of the stationary disc 220 away from the moving disc 121 and the back pressure plate 230. The compression chamber 123 can communicate with the buffer chamber 127. The stationary disc 220 is provided with a second flow channel 222, one end of which is connected to the second channel 193, and the other end of which is connected to the buffer chamber 127.

[0174] In this embodiment, a third pressure-applying method is defined. Specifically, the stationary disk assembly 122 includes a stationary disk 220 and a back pressure plate 230. The stationary disk 220 and the moving disk 121 form a compression chamber 123. A buffer chamber 127 is disposed between the side of the stationary disk 220 away from the moving disk 121 and the back pressure plate 230. The compression chamber 123 can communicate with the buffer chamber 127. Specifically, during the operation of the compressor 100, the moving disk 121 rotates relative to the stationary disk assembly 122 to compress the refrigerant in the compression chamber 123. When the pressure of the compressed refrigerant reaches the discharge pressure, the high-temperature and high-pressure refrigerant flows from the compression chamber 123 into the buffer chamber 127, then into the discharge chamber 112, and finally out of the housing 110, completing the compression and discharge process. Optionally, the stationary disk 220 is also provided with an exhaust port 126, and the compression chamber 123 can communicate with the buffer chamber 127 via the exhaust port 126.

[0175] Since the second flow channel 222 connects to the buffer chamber 127, that is, high pressure is introduced into the second back pressure chamber 150, the high pressure can apply axial force to the moving plate 121 in the axial direction to push the moving plate 121 to engage and seal with the stationary plate 220, which is beneficial to improving the sealing performance between the volutes of the moving plate 121 and the stationary plate 220. Moreover, since the second back pressure chamber 150 acts on the back side of the moving plate 121, the high pressure can make the moving plate 121 float, thereby reducing the friction between the moving plate 121 and the thrust surface 141, significantly reducing frictional power consumption, and improving the energy efficiency of the compressor 100.

[0176] like Figure 5 As shown, in some embodiments, optionally, the stationary disk assembly 122 includes a stationary disk 220, a back pressure plate 230, and a float assembly 240. The stationary disk 220 and the moving disk 121 form a compression cavity 123. The second end 197 is connected to the stationary disk 220. The stationary disk 220 is provided with a third flow channel 223, which is connected to the second channel 193. The back pressure plate 230 is provided on the side of the stationary disk 220 away from the moving disk 121. The side of the back pressure plate 230 away from the moving disk 121 forms a recess 224 with the stationary disk 220. The back pressure plate 230 is provided with a through hole 231. One end of the through hole 231 is connected to the recess 224, and the other end of the through hole 231 is connected to the third flow channel 223. The float assembly 240 is movably provided in the recess 224 and forms a first back pressure cavity 130 with the inner wall of the recess 224.

[0177] In this embodiment, a fourth pressure-inducing method is defined. Specifically, the stationary disk assembly 122 includes a stationary disk 220, a back pressure plate 230, and a float assembly 240. The back pressure plate 230 forms a recess 224 with the stationary disk 220 on the side opposite to the moving disk 121. The float assembly 240 is movably disposed in the recess 224, and the float assembly 240 and the inner wall of the recess 224 enclose a first back pressure cavity 130. Since the two ends of the through hole 231 of the back pressure plate 230 are respectively connected to the recess 224 and the third flow channel 223, medium pressure can be introduced into the second back pressure cavity 150.

[0178] The intermediate pressure can apply an axial force to the moving plate 121 in the axial direction to push the moving plate 121 to engage and seal with the stationary plate 220, which is beneficial to improving the sealing performance between the volutes of the moving plate 121 and the stationary plate 220. Moreover, since the second back pressure chamber 150 acts on the back side of the moving plate 121, the intermediate pressure can make the moving plate 121 float, thereby reducing the friction between the moving plate 121 and the thrust surface 141, significantly reducing frictional power consumption, and improving the energy efficiency of the compressor 100.

[0179] like Figure 2 As shown, in some embodiments, the compressor 100 may optionally include a second seal 210 disposed between the pressure-sensing pipe 194 and the groove wall of the first floating groove 196 along the radial direction of the moving disc 121, and / or the second seal 210 disposed between the groove wall of the pressure-sensing pipe 194 and the groove wall of the second floating groove 198.

[0180] In this embodiment, by providing a second seal 210, the pressure-feeding channel 191 can be kept sealed while the pressure-feeding pipe 194 floats up and down, preventing gas leakage during the introduction of medium or high pressure into the second back pressure chamber 150, which is beneficial to improving the reliability of the compressor 100. Simultaneously, it helps ensure the effective introduction of back pressure on the back of the moving plate 121, achieving bidirectional floating, reducing frictional power consumption, and improving the sealing between the moving plate 121 and the volute of the stationary plate assembly 122, thereby improving the energy efficiency of the compressor 100.

[0181] Optionally, the second seal 210 includes a sealing ring.

[0182] like Figure 3 and Figure 4 As shown, in some embodiments, the compressor 100 may optionally include a guide assembly 260, which is connected to the support frame 140, and the stationary plate assembly 122 is movably connected to the guide assembly 260.

[0183] In this embodiment, the compressor 100 is further defined as including a guide assembly 260. Specifically, the guide assembly 260 is connected to the support frame 140, and the stationary disc assembly 122 is movably connected to the guide assembly 260. That is, during the operation of the compressor 100, the stationary disc assembly 122 can make small axial or radial movements along the guide assembly 260 to remove impurities and improve its reliability.

[0184] like Figure 3 and Figure 4 As shown, in some embodiments, optionally, the guide assembly 260 includes a connector 261, a guide post 262, and a limiting member 263. The connector 261 is connected to the support frame 140 along the radial direction of the moving disk 121. The guide post 262 is located on the outer side of the connector 261. The stationary disk assembly 122 also includes a guide channel 128. The guide post 262 passes through the guide channel 128 along the axial direction of the moving disk 121. The channel wall of the guide channel 128 is slidably engaged with the guide post 262 along the axial direction of the moving disk 121. The limiting member 263 is located between the guide post 262 and the connector 261, and is located on the side of the stationary disk assembly 122 opposite to the moving disk 121.

[0185] In this embodiment, the specific structure of the guide assembly 260 is defined. Specifically, the guide assembly 260 includes a connector 261, a guide post 262, and a limiting member 263. The connector 261 is connected to the support frame 140. The guide post 262 is disposed on the radially outer side of the connector 261 and slides with the guide channel 128 of the stationary plate assembly 122. That is, during the operation of the compressor 100, the stationary plate assembly 122 can make small axial or radial movements through the guide post 262, which is beneficial to improving the reliability of the compressor 100.

[0186] The limiting member 263 is disposed between the guide post 262 and the connecting member 261, and the limiting member 263 is located on the side of the stationary plate assembly 122 away from the moving plate 121, thereby limiting the floating distance of the stationary plate assembly 122 in the axial direction, which is conducive to further improving the reliability of the compressor 100.

[0187] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, in one specific embodiment, optionally, a dual-floating scroll compressor structure (compressor 100) includes a moving scroll (moving disc 121), a stationary scroll (stationary disc 220), a cross slip ring 310, and a main frame (support frame 140). The stationary scroll (stationary disc 220) and the moving scroll (moving disc 121) cooperate to form a compression chamber 123. The stationary scroll (stationary disc 220) is fixed on the main frame (support frame 140) by a guide post (guide assembly 260) and can float up and down.

[0188] Two annular sealing grooves (sealing grooves 160) are provided on the support surface (thrust surface 141) of the moving volute (moving disk 121) and the main frame (support frame 140). A sealing ring (first sealing element 170) and a spring washer (elastic element 180) are respectively embedded in the two sealing grooves 160. The two sealing grooves 160, the support surface (thrust surface 141) of the main frame (support frame 140), and the lower end surface (contact surface 125) of the moving volute (moving disk 121) together form an annular sealing cavity (second back pressure cavity 150). A connecting hole 142 is provided at the lower part of the cavity (second back pressure cavity 150). By introducing high pressure or medium pressure into the sealed cavity (second back pressure cavity 150), the moving scroll (moving disk 121) can float, thereby reducing the friction of the support surface (thrust surface 141), reducing power consumption, and at the same time increasing the tooth top and tooth bottom seal between the moving scroll (moving disk 121) and the stationary scroll (stationary disk 220), reducing leakage, thereby improving the energy efficiency of the scroll compressor (compressor 100).

[0189] Specifically, an annular sealing groove (sealing groove 160) is provided on the upper surface of the thrust surface 141 of the main frame (support frame 140), including inner and outer sealing grooves (first sealing groove 161 and second sealing groove 162), and the inner and outer sealing grooves can form a sealed cavity (second back pressure cavity 150) with the back of the main frame (support frame 140) and the moving vortex (moving disk 121).

[0190] The width of the thrust surface 141 of the main frame (support frame 140) is T, the width of the inner sealing groove (first sealing groove 161) is t1, the width of the outer sealing groove (second sealing groove 162) is t2, and the width of the cavity between the two sealing grooves (second back pressure cavity 150) is t3. Then (t1+t2+t3) / T≤0.5.

[0191] If the diameter of the connecting hole 142 of the main frame (support frame 140) is d1, then d1≤(t1+t2+t3), where one or more holes can be connected.

[0192] With the thrust surface 141 of the main frame (support frame 140) as the reference, the depth of the inner sealing groove (first sealing groove 161) is h1, the depth of the outer sealing groove (second sealing groove 162) is h2, and the depth of the cavity between the two sealing grooves (second back pressure cavity 150) is h. Then h1 > h, h2 > h, and h ≥ 0.5 mm, ensuring the limiting of the cavity and the sealing ring (first sealing element 170) in the inner and outer grooves.

[0193] Let the radius of rotation (i.e., eccentricity) of the moving disk 121 be e, the inner diameter of the thrust surface 141 of the main frame (support frame 140) be d2, and the outer diameter be d3. Then the back of the moving disk 121 (i.e. the surface that contacts the thrust surface 141 of the main frame) must be flat (planar) within the range of (d2-2e) and (d3+2e) to ensure the sealing of the sealing cavity (second back pressure cavity 150).

[0194] The sealing ring (first sealing element 170) is made of self-lubricating and wear-resistant materials such as PTFE (polytetrafluoroethylene). A spring (elastic element 180) is required inside the sealing ring groove (sealing groove 160) to support it so that the sealing ring (first sealing element 170) can fit tightly against the back of the moving plate 121.

[0195] The pressure drawn through the connecting hole 142 of the main frame (support frame 140) must be greater than the pressure in the low-pressure chamber (inlet chamber 111). Specifically, in the first embodiment, a hole (first flow channel 221) is drilled in the exhaust port 126 of the stationary plate 220 to draw out the exhaust pressure. Between the stationary plate 220 and the connecting hole 142 of the main frame (support frame 140), there is a sealed, vertically movable pressure-drawing pipe 194, which ensures a continuous seal when the stationary plate 220 floats.

[0196] The second embodiment involves pressing the back pressure plate 230 from the stationary plate 220 onto the back of the moving plate 121. Between the stationary plate 220 and the main frame (support frame 140) through the communication hole 142, there is a sealed, vertically movable pressure tube 194 that ensures a continuous seal when the stationary plate 220 is floating.

[0197] The third embodiment involves drawing high pressure from the partition plate 250 to the back of the moving plate 121, with the pressure pipe 194 passing through the partition plate 250 to the high pressure chamber (exhaust chamber 112).

[0198] According to a second aspect of the present invention, a refrigeration device is provided, including a compressor 100 as provided in any of the above embodiments, and thus possessing all the beneficial technical effects of the compressor 100, which will not be repeated here.

[0199] Alternatively, the refrigeration equipment may include air conditioners, refrigerators, or freezers.

[0200] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 Optionally, the compressor 100 includes a housing 110, a compression mechanism 120, a first back pressure chamber 130, a support frame 140, and a second back pressure chamber 150. Specifically, the stationary disk assembly 122 and the moving disk 121 form a compression chamber 123. Since the stationary disk assembly 122 includes an exhaust passage 124, the compression chamber 123 can communicate with the exhaust chamber 112 through the exhaust passage 124. Specifically, during the operation of the compressor 100, the moving disk 121 rotates relative to the stationary disk assembly 122 to compress the refrigerant in the compression chamber 123. When the pressure of the compressed refrigerant reaches the exhaust pressure, the high-temperature and high-pressure refrigerant flows through the exhaust passage 124 to the exhaust chamber 112 and is then discharged outside the housing 110, completing the compression and exhaust process.

[0201] Since the first back pressure chamber 130 is located on the side of the stationary disc assembly 122 away from the moving disc 121 and can communicate with the compression chamber 123, when the compressor 100 is running, intermediate pressure can be introduced into the first back pressure chamber 130. This intermediate pressure can apply an axial force to the stationary disc assembly 122 in the axial direction to push the stationary disc assembly 122 to engage and seal with the moving disc 121.

[0202] Meanwhile, since the second back pressure chamber 150 is located between the side of the moving plate 121 away from the stationary plate assembly 122 and the support frame 140, and the second back pressure chamber 150 can communicate with at least one of the first back pressure chamber 130, the exhaust passage 124, and the exhaust chamber 112, medium or high pressure can be introduced into the second back pressure chamber 150 during the operation of the compressor 100. This medium or high pressure can apply an axial force to the moving plate 121 to push the moving plate 121 to engage and seal with the stationary plate assembly 122. In other words, the compressor 100 is a dual floating compressor.

[0203] By setting the first back pressure chamber 130 and the second back pressure chamber 150, axial forces can be applied to the stationary disk assembly 122 and the moving disk 121 on both sides of the axial direction, so that the volutes of the stationary disk assembly 122 and the moving disk 121 mesh tightly, increasing the sealing performance of the tooth top and tooth bottom, reducing leakage, which is beneficial to improving the energy efficiency of the compressor 100. Compared with the related technology of reducing leakage between the volutes by adjusting the tooth height difference between the moving and stationary volutes, it is beneficial to simplify the manufacturing process and reduce the manufacturing precision of the moving disk 121 and the stationary disk assembly 122.

[0204] Furthermore, since the second back pressure chamber 150 is located between the side of the moving plate 121 away from the stationary plate assembly 122 and the support frame 140, that is, the second back pressure chamber 150 acts on the back side of the moving plate 121, the moving plate 121 can float, thereby reducing the friction between the moving plate 121 and the support frame 140, significantly reducing frictional power consumption, and improving the energy efficiency of the compressor 100.

[0205] It can be understood that when the second back pressure chamber 150 is connected to the first back pressure chamber 130, medium pressure is introduced into the second back pressure chamber 150. When the second back pressure chamber 150 is connected to the exhaust passage 124 and / or the exhaust chamber 112, high pressure is introduced into the second back pressure chamber 150. The specific settings can be configured according to actual needs.

[0206] In addition, the support frame 140 is located on the side of the moving plate 121 away from the stationary plate assembly 122, and the support frame 140 is used to support the moving plate 121, which helps to improve the reliability of the compressor 100.

[0207] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 Optionally, the compressor 100 further includes a sealing groove 160 and a first seal 170, wherein the sealing groove 160 is disposed on at least one of the moving plate 121 and the support frame 140, the sealing groove 160 is located on at least one side of the second back pressure chamber 150 along the radial direction of the moving plate 121, and at least a portion of the first seal 170 is located within the sealing groove 160.

[0208] In this embodiment, the compressor 100 further includes a sealing groove 160 and a first seal 170. Specifically, the sealing groove 160 is disposed on the moving plate 121, or the sealing groove 160 is disposed on the support frame 140, or a portion of the sealing groove 160 is disposed on the moving plate 121 and another portion is disposed on the support frame 140. The specific configuration can be adjusted according to actual needs.

[0209] Along the radial direction of the moving plate 121, the sealing groove 160 is located on at least one side of the second back pressure cavity 150. Specifically, the sealing groove 160 may be located radially inner to the second back pressure cavity 150, or radially outer to the second back pressure cavity 150, or sealing grooves 160 may be provided on both radially sides of the second back pressure cavity 150. The specific configuration can be determined according to actual needs.

[0210] Since at least a portion of the first seal 170 is located within the sealing groove 160, the second back pressure chamber 150 can be sealed on at least one side radially in the second back pressure chamber 150, forming a sealed cavity. This provides reliable back pressure to the moving plate 121, increasing the sealing between the stationary plate assembly 122 and the moving plate 121, reducing leakage, and allowing the moving plate 121 to float, reducing frictional power consumption and improving the energy efficiency of the compressor 100.

[0211] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, optionally, the compressor 100 also includes an elastic element 180, which is disposed between the first seal 170 and the groove wall of the sealing groove 160 along the axial direction of the moving disc 121.

[0212] In this embodiment, since the compressor 100 also includes an elastic element 180, and along the axial direction of the moving plate 121, the elastic element 180 is disposed between the first seal 170 and the groove wall of the sealing groove 160, that is, the elastic element 180 is disposed between the first seal 170 and the bottom wall of the sealing groove 160.

[0213] Because an elastic element 180 is provided between the first seal 170 and the bottom wall of the sealing groove 160, the first seal 170 can be pushed towards the side where the moving disk 121 is located under the action of the elastic force of the elastic element 180, so that the first seal 170 is tightly attached to the back of the moving disk 121. This helps to further improve the sealing effect of the second back pressure chamber 150, ensure that the moving disk 121 can float effectively, thereby reducing frictional power consumption and improving the sealing performance between the moving disk 121 and the volute of the stationary disk assembly 122.

[0214] Optionally, the elastic element 180 includes a wave spring or a spring washer.

[0215] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0216] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0217] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A compressor, characterized in that, include: A housing, the housing including an air intake chamber and an exhaust chamber; A compression mechanism is disposed in the intake chamber. The compression mechanism includes a moving disc and a stationary disc assembly. The moving disc and the stationary disc assembly form a compression chamber. The stationary disc assembly includes an exhaust channel. The compression chamber can communicate with the exhaust chamber through the exhaust channel. The first back pressure chamber is located on the side of the stationary disk assembly away from the moving disk and can communicate with the compression chamber. A support frame is disposed within the air intake chamber and located on the side of the moving disc opposite to the stationary disc assembly, for supporting the moving disc; The second back pressure chamber is located between the moving plate and the support frame, and at least one of the first back pressure chamber, the exhaust channel and the exhaust chamber is in communication with the second back pressure chamber.

2. The compressor according to claim 1, characterized in that, Also includes: A sealing groove is provided in at least one of the moving disk and the support frame, along the radial direction of the moving disk, and the sealing groove is located on at least one side of the second back pressure chamber; A first seal, at least a portion of which is located within the sealing groove.

3. The compressor according to claim 2, characterized in that, Along the axial direction of the moving disc, the depth of the sealing groove is greater than the depth of the second back pressure chamber.

4. The compressor according to claim 2, characterized in that, The sealing groove is connected to the second back pressure chamber.

5. The compressor according to claim 2, characterized in that, The support frame includes a thrust surface, which is used to support the moving disc; The thrust surface is provided with a groove, and the side of the moving disc away from the stationary disc assembly is surrounded by the groove wall to form the second back pressure cavity.

6. The compressor according to claim 5, characterized in that, The sealing groove is provided on the thrust surface, and there are two sealing grooves, namely the first sealing groove and the second sealing groove. Along the radial direction of the moving plate, the first sealing groove and the second sealing groove are respectively located on both sides of the groove. Wherein, along the radial direction of the moving disc, the width of the first sealing groove is t1, the width of the second sealing groove is t2, the width of the groove is t3, the width of the thrust surface is T, and (t1+t2+t3) / T≤0.

5.

7. The compressor according to claim 6, characterized in that, The support frame also includes a connecting hole, one end of which passes through the groove, and the other end of which is connected to at least one of the first back pressure chamber, the exhaust channel, and the exhaust chamber. Wherein, the diameter of the connecting hole is d1, and d1≤(t1+t2+t3).

8. The compressor according to claim 6, characterized in that, The first sealing groove and the second sealing groove are respectively connected to the groove; Along the axial direction of the moving disc, the depth of both the first sealing groove and the second sealing groove is greater than the depth of the recess.

9. The compressor according to claim 5, characterized in that, The side of the moving plate away from the stationary plate assembly includes a contact surface that mates with the thrust surface, and the contact surface and the groove wall of the groove form the second back pressure cavity. Wherein, the radius of rotation of the moving disk is e, the inner diameter of the thrust surface is d2, the outer diameter is d3, and the portion of the contact surface diameter between d2-2e and d3+2e is constructed as a plane.

10. The compressor according to claim 2, characterized in that, Also includes: An elastic element is disposed between the first seal and the groove wall of the sealing groove along the axial direction of the moving disc.

11. The compressor according to claim 2, characterized in that, The sealing groove is configured as an annular sealing groove; and / or the first seal includes a self-lubricating element; and / or the first seal includes a wear-resistant element.

12. The compressor according to any one of claims 1 to 11, characterized in that, Along the axial direction of the moving disk, the depth of the second back pressure chamber is h, where h ≥ 0.5 mm.

13. The compressor according to any one of claims 1 to 11, characterized in that, Also includes: A pressure-inducing assembly is disposed in the intake chamber and connected to the support frame. The pressure-inducing assembly includes a pressure-inducing channel, one end of which is connected to at least one of the first back pressure chamber, the exhaust channel, and the exhaust chamber. The support frame further includes a flow channel, one end of which is connected to the other end of the pressure channel, and the other end of which is connected to the second back pressure chamber.

14. The compressor according to claim 13, characterized in that, The current-passing channel includes: The first flow path is connected to the pressure channel and extends at least partially along the axial direction of the moving disk; The second flow path communicates with the second back pressure chamber and extends at least partially along the axial direction of the moving disk; A third flow path is located between the first flow path and the second flow path, and extends at least partially along the radial direction of the moving disk, with both ends of the third flow path connected to the first flow path and the second flow path, respectively.

15. The compressor according to claim 13, characterized in that, The pressure-applying assembly is floatingly connected to the support frame.

16. The compressor according to claim 15, characterized in that, The pressure-guiding channel includes a first channel, one end of which is connected to at least one of the first back pressure chamber, the exhaust channel, and the exhaust chamber. The pressure-guiding assembly includes: A pressure-sensing tube, wherein the first channel is provided in the pressure-sensing tube; The first end is connected to the support frame. The first end is provided with a first floating groove. The first floating groove is connected to the flow channel. The other end of the first channel is connected to the first floating groove. One end of the pressure tap is inserted into the first floating groove and can move along the axial direction of the moving plate within the first floating groove.

17. The compressor according to claim 16, characterized in that, Also includes: A partition plate is disposed inside the housing and divides the housing into the air intake chamber and the exhaust chamber. The partition plate is provided with a pressure-inducing hole. The end of the pressure-inducing pipe away from the first end is inserted into the pressure-inducing hole and connected to the partition plate. The first channel communicates with the exhaust chamber.

18. The compressor according to claim 17, characterized in that, The pressure-applying assembly also includes: A limiting structure is provided at the end of the pressure-sensing tube away from the first end and located outside the pressure-sensing tube. The limiting structure is located inside the air intake chamber along the axial direction of the moving disc, and at least a portion of the limiting structure is disposed opposite to the partition plate.

19. The compressor according to claim 16, characterized in that, The pressure-inducing channel further includes a second channel, one end of which is connected to at least one of the first back pressure chamber and the exhaust channel. The pressure-inducing assembly further includes: The second end is connected to the static disk assembly. The second channel is located at the second end. The second end is provided with a second floating groove. The other end of the second channel is connected to the second floating groove. The first channel is connected to the second floating groove. The end of the pressure-sensing tube furthest from the first end is inserted into the second floating groove and is able to move axially along the moving disk within the second floating groove.

20. The compressor according to claim 19, characterized in that, The exhaust passage includes an exhaust port, and the stationary disk assembly includes: A stationary disc, together with the moving disc, forms the compression chamber. An exhaust port is located on the stationary disc, with one end communicating with the compression chamber and the other end communicating with the exhaust chamber. A second end is connected to the stationary disc. The stationary plate is provided with a first flow channel, and the two ends of the first flow channel are respectively connected to the second channel and the exhaust port.

21. The compressor according to claim 19, characterized in that, The exhaust passage includes a buffer chamber, which communicates with the exhaust chamber. The stationary disk assembly includes: A stationary disc, together with the moving disc, forms the compression cavity, and the second end is connected to the stationary disc; A back pressure plate is disposed on the side of the stationary disc away from the moving disc, and a buffer cavity is disposed between the side of the stationary disc away from the moving disc and the back pressure plate. The compression cavity can communicate with the buffer cavity. The static plate is provided with a second flow channel, one end of which is connected to the second channel, and the other end of which is connected to the buffer cavity.

22. The compressor according to claim 19, characterized in that, The static disk assembly includes: A stationary disc, together with the moving disc, forms the compression cavity. The second end is connected to the stationary disc. The stationary disc is provided with a third flow channel, which is connected to the second channel. A back pressure plate is disposed on the side of the stationary plate away from the moving plate. The side of the back pressure plate away from the moving plate forms a recess with the stationary plate. The back pressure plate is provided with a through hole. One end of the through hole is connected to the recess, and the other end of the through hole is connected to the third flow channel. A float assembly is movably disposed in the recess and forms the first back pressure cavity with the inner wall of the recess.

23. The compressor according to claim 19, characterized in that, The compressor also includes: The second seal is disposed between the pressure-sensing tube and the wall of the first floating groove along the radial direction of the moving disc, and / or the second seal is disposed between the pressure-sensing tube and the wall of the second floating groove.

24. A refrigeration device, characterized in that, Includes the compressor as described in any one of claims 1 to 23.

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