Stationary scroll disk assembly, scroll compressor and air conditioner

Abstract

Embodiments of the present invention provide a stationary scroll disk assembly, a scroll compressor, and an air conditioner. The stationary scroll disk assembly includes: a stationary scroll disk, the stationary scroll disk includes a suction cavity, and the suction cavity communicates with the outside; at least one heat insulation groove, which is arranged on the stationary scroll disk. By arranging at least one heat insulation groove on the stationary scroll disk, it can effectively prevent the heat of the external high-temperature gas from transferring heat to the low-temperature refrigerant in the suction cavity through the outer wall of the stationary scroll disk, improve the circulation volume of the low-temperature refrigerant, reduce the compression loss of the low-temperature refrigerant, thereby effectively suppressing the temperature rise in the compression cavity, improving the efficiency of the compressor, and further improving the performance of the compressor.

Description

Technical Field

[0001] Embodiments of the present invention relate to the technical field of compressor equipment. Specifically, the present invention relates to a stationary scroll disk assembly, a scroll compressor, and an air conditioner. Background Art

[0002] A scroll compressor is a new type of positive displacement compressor. Currently, during the operation of a scroll compressor in the related art, the external heat of the stationary scroll disk and the moving scroll disk will transfer heat to the low-temperature refrigerant in the suction chamber to a certain extent, resulting in a decrease in the refrigerant circulation volume, an increase in the compression loss of the refrigerant, and a reduction in the working efficiency of the scroll compressor. Summary of the Invention

[0003] Embodiments of the present invention aim to solve at least one of the technical problems existing in the prior art.

[0004] To this end, a first aspect of the embodiments of the present invention provides a stationary scroll disk assembly.

[0005] A second aspect of the embodiments of the present invention provides a scroll compressor.

[0006] A third aspect of the embodiments of the present invention provides an air conditioner.

[0007] In view of this, according to the first aspect of the embodiments of the present invention, a stationary scroll disk assembly is provided. The stationary scroll disk assembly includes: a stationary scroll disk, the stationary scroll disk includes a suction chamber, and the suction chamber is in communication with the outside; at least one heat insulation groove, which is provided on the stationary scroll disk.

[0008] The stationary scroll disk assembly provided by the embodiments of the present invention includes a stationary scroll disk and at least one heat insulation groove. Specifically, the stationary scroll disk includes a suction chamber, and the suction chamber can be in communication with the outside. It can be understood that the scroll compressor further includes a suction passage provided on the stationary scroll disk. During the operation of the scroll compressor, the low-temperature refrigerant enters the suction chamber through the suction passage. The scroll compressor includes a stationary scroll disk assembly and a moving scroll disk. The stationary scroll disk and the moving scroll disk cooperate to form a compression chamber. The low-temperature refrigerant passes through the suction passage and enters the compression chamber through the suction chamber. The scroll compressor further includes a crankshaft and a motor. The motor drives the crankshaft to rotate. The rotation of the crankshaft drives the moving scroll disk to perform a rotary motion around the stationary scroll disk, and during the rotary motion, the volume of the compression chamber continuously decreases, thereby increasing the pressure in the compression chamber to reach the specified operating conditions. The stationary scroll disk assembly further includes an exhaust port, and the exhaust port is provided on the stationary scroll disk and is in communication with the compression chamber. The high-temperature and high-pressure refrigerant gas that meets the requirements is discharged to the housing through the exhaust port, and then discharged from the housing of the scroll compressor through the discharge passage into the system circulation. This is the working process of the scroll compressor, that is, the suction chamber is in communication with the outside.

[0009] At least one heat insulation groove is provided on the stationary scroll plate, that is, one or more heat insulation grooves are formed on the stationary scroll plate. It can be understood that heat insulation medium can be placed in the heat insulation grooves. Thus, during the operation of the scroll compressor, by providing at least one heat insulation groove on the stationary scroll plate, the heat of the external high-temperature gas can be effectively prevented from transferring to the low-temperature refrigerant in the suction cavity through the outer side wall of the stationary scroll plate, increasing the circulation amount of the low-temperature refrigerant, reducing the compression loss of the low-temperature refrigerant, thereby effectively suppressing the temperature rise in the compression cavity, improving the efficiency of the compressor, and further enhancing the performance of the compressor.

[0010] It should be noted that the number of heat insulation grooves should not be too large. If too many heat insulation grooves are formed on the stationary scroll plate, the strength of the stationary scroll plate will be reduced, and the service life of the scroll compressor with this stationary scroll plate assembly will be shortened.

[0011] In addition, the heat insulation grooves are formed on the stationary scroll plate. It can be understood that the stationary scroll plate includes a body and stationary scroll teeth. The heat insulation grooves can be formed on the body, or of course, on the stationary scroll teeth. Since during the operation of the scroll compressor, the stationary scroll teeth need to cooperate with the moving scroll teeth on the moving scroll plate to form a compression cavity, if heat insulation grooves are formed on the stationary scroll teeth, the strength of the stationary scroll teeth will be reduced. Therefore, in practical applications, the heat insulation grooves are generally formed on the body to prevent the heat of the external high-temperature gas from transferring to the low-temperature refrigerant in the suction cavity while ensuring the strength of the stationary scroll plate. Moreover, the stationary scroll teeth are generally arranged at the central position of the body, and the external high-temperature gas mainly transfers from the outer side wall of the stationary scroll plate to the suction cavity. By providing the heat insulation grooves on the body, that is, providing heat insulation grooves between the suction cavity and the outer side wall of the stationary scroll plate, the heat insulation effect of the heat insulation grooves can be further improved without affecting the strength of the stationary scroll plate.

[0012] In addition, according to the stationary scroll plate assembly provided by the above technical solution of the present invention, the following additional technical features are further provided:

[0013] In a possible design, the stationary scroll plate further includes a body and stationary scroll teeth. The body has a mounting opening, the stationary scroll teeth are arranged on the body and located within the mounting opening, the stationary scroll teeth and the body form a suction cavity, and at least one heat insulation groove is provided on the body.

[0014] In this design, the specific structure of the stationary scroll plate is defined. Specifically, the stationary scroll plate further includes a body and stationary scroll teeth. Among them, an installation opening is provided on the body, and the stationary scroll teeth are located within the installation opening, so that the stationary scroll teeth and at least a part of the body and the installation opening form a suction chamber. At least one heat insulation groove is provided on the body, that is, the setting position of at least one heat insulation groove is specifically defined. It can be understood that by providing at least one heat insulation groove on the body, it is defined that at least one heat insulation groove is provided between the outer side wall of the stationary scroll plate and the suction chamber. Since the external high-temperature gas mainly transfers from the outer side wall of the stationary scroll plate to the suction chamber, by providing at least one heat insulation groove on the body between the outer side wall of the stationary scroll plate and the suction chamber, the external high-temperature gas can be effectively blocked from the low-temperature refrigerant in the suction chamber, preventing the heat of the high-temperature gas from transferring to the low-temperature refrigerant in the suction chamber, thereby effectively suppressing the temperature rise in the compression chamber of the scroll compressor, and further improving the performance of the scroll compressor with this stationary scroll plate assembly.

[0015] In addition, the body and the stationary scroll teeth can be of an integral structure. It can be understood that the integral structure has good mechanical properties, so that the connection strength between the body and the stationary scroll teeth can be improved, and further the cooperation stability between the stationary scroll plate and the moving scroll plate of the scroll compressor can be ensured, improving the operation stability and service life of the scroll compressor with this stationary scroll plate assembly.

[0016] In a possible design, the number of at least one heat insulation groove is multiple, and the multiple heat insulation grooves are distributed at intervals.

[0017] In this design, the number and distribution method of the heat insulation grooves are defined. Specifically, the multiple heat insulation grooves are distributed at intervals on the body. It can be understood that by opening multiple heat insulation grooves on the body, the external high-temperature gas can be further blocked from the low-temperature refrigerant in the suction chamber, significantly improving the heat transfer of the high-temperature gas to the low-temperature refrigerant in the suction chamber, significantly suppressing the temperature rise in the compression chamber of the scroll compressor, and further improving the performance of the scroll compressor with this stationary scroll plate assembly.

[0018] It can be understood that the multiple heat insulation grooves can be distributed at intervals along the circumferential direction of the body. Since the external high-temperature gas mainly transfers from the outer side wall of the stationary scroll plate to the suction chamber, by distributing the multiple heat insulation grooves along the circumferential direction of the body, the heat of the external high-temperature gas can be blocked from all around the suction chamber, further improving the heat insulation effect of the heat insulation grooves.

[0019] In addition, by arranging a plurality of heat insulation grooves at intervals on the body, while ensuring the heat insulation effect of the heat insulation grooves, the structural strength of the stationary scroll plate can be ensured, preventing the reduction of the strength of the stationary scroll plate caused by arranging a plurality of heat insulation grooves through the body along the circumferential direction of the body to ensure the heat insulation effect of the heat insulation grooves. By arranging a plurality of heat insulation grooves at intervals on the body, while improving the heat insulation effect of the heat insulation grooves, the service life of the stationary scroll plate assembly can be prolonged, thereby improving the operation stability and reliability of the scroll compressor with the stationary scroll plate assembly.

[0020] In a possible design, at least one heat insulation groove extends axially.

[0021] In this design, the extending direction of the heat insulation groove is further defined. Specifically, at least one heat insulation groove extends axially, that is, at least one heat insulation groove is arranged to extend along the axial direction of the body. Since the external high-temperature gas mainly transfers from the outer wall of the stationary scroll plate to the low-temperature refrigerant in the suction cavity. It can be understood that if at least one heat insulation groove extends radially or in other directions, the thickness between the groove wall of the heat insulation groove and the outer wall of the stationary scroll plate will be reduced to a certain extent, reducing the heat insulation effect of the heat insulation groove. By extending at least one heat insulation groove axially, the heat of the high-temperature gas transferred from the outer wall of the stationary scroll plate can be effectively blocked from the low-temperature refrigerant in the suction cavity, effectively suppressing the temperature rise in the compression cavity of the scroll compressor, thereby improving the performance of the scroll compressor with the stationary scroll plate assembly.

[0022] It should be noted that when the number of at least one heat insulation groove is multiple, the extending direction of any one of the multiple heat insulation grooves can be set to extend axially to further improve the heat insulation effect of the heat insulation groove.

[0023] In a possible design, the width T in the radial direction of any one of the at least one heat insulation groove and the average thickness t of the stationary scroll tooth satisfy 0.5 ≤ T / t ≤ 1.2.

[0024] In this design, the width in the radial direction of the heat insulation groove is defined. Specifically, the width T in the radial direction of any one of the at least one heat insulation groove and the average thickness t of the stationary scroll tooth satisfy 0.5 ≤ T / t ≤ 1.2. It can be understood that the width in the radial direction of the heat insulation groove should not be too wide. If it is too wide, the structural strength of the stationary scroll plate will be reduced, thereby reducing the operation stability and reliability of the scroll compressor with the stationary scroll plate assembly.

[0025] In addition, the width of the heat insulation groove in the radial direction should not be too narrow. If it is too narrow, it cannot ensure the effective block of heat transfer between the high-temperature gas flowing through the outer wall of the stationary scroll plate and the low-temperature refrigerant in the suction cavity, reducing the heat insulation effect of the heat insulation groove. By making the width T of any one of the at least one heat insulation groove in the radial direction satisfy 0.5 ≤ T / t ≤ 1.2 with the average thickness t of the stationary scroll tooth, it is possible to ensure the heat insulation effect of the heat insulation groove while ensuring the structural strength of the stationary scroll plate, and improving the operation stability and reliability of the scroll compressor with this stationary scroll plate assembly.

[0026] In addition, in one heat insulation groove, the width at any position can be unequal. If the width of the heat insulation groove is unequal, the radial width at any position in one heat insulation groove needs to satisfy the above relationship, so as to ensure the heat insulation effect of the heat insulation groove while ensuring the structural strength of the stationary scroll plate. In addition, the width at any position of one heat insulation groove can be equal. The equal-width heat insulation groove is convenient for processing, reduces the processing difficulty of the stationary scroll plate, and thus can reduce the production cost of the scroll compressor with this stationary scroll plate assembly.

[0027] In a possible design, the depth H of any one of the at least one heat insulation groove in the axial direction satisfies 0.9 ≤ H / h ≤ 1.1 with the maximum height h of the stationary scroll tooth in the axial direction.

[0028] In this design, the depth of the heat insulation groove in the axial direction is limited. Specifically, the depth H of any one of the at least one heat insulation groove in the axial direction satisfies 0.9 ≤ H / h ≤ 1.1 with the maximum height h of the stationary scroll tooth in the axial direction. It can be understood that the depth of the heat insulation groove in the axial direction should not be too deep. If it is too deep, on the one hand, it will reduce the structural strength of the stationary scroll plate. On the other hand, if the heat insulation groove is opened too deep on the body, during the operation of the scroll compressor, it will increase the risk of gas leakage from the compression cavity, thereby reducing the operation stability and reliability of the scroll compressor with this stationary scroll plate assembly.

[0029] In addition, the depth of the heat insulation groove in the axial direction should not be too shallow. If it is too shallow, it cannot ensure the effective block of heat transfer between the high-temperature gas flowing through the outer wall of the stationary scroll plate and the low-temperature refrigerant in the suction cavity, reducing the heat insulation effect of the heat insulation groove. By making the depth H of any one of the at least one heat insulation groove in the axial direction satisfy 0.9 ≤ H / h ≤ 1.1 with the maximum height h of the stationary scroll tooth in the axial direction, it is possible to ensure the heat insulation effect of the heat insulation groove while ensuring the structural strength of the stationary scroll plate and the sealing performance of the compression cavity of the scroll compressor, and improving the operation stability and reliability of the scroll compressor with this stationary scroll plate assembly.

[0030] In addition, in a heat insulation groove, the depths at any positions may not be equal. If the depths at any positions in the heat insulation groove are not equal, then the axial depth at any position in one heat insulation groove needs to satisfy the above relational expression, so as to ensure the heat insulation effect of the heat insulation groove while ensuring the structural strength of the stationary scroll plate and the sealing performance of the compression chamber of the scroll compressor. Additionally, the depths at any positions in one heat insulation groove may be equal, which can facilitate processing, reduce the processing difficulty of the stationary scroll plate, and further reduce the production cost of the scroll compressor with the stationary scroll plate assembly.

[0031] In a possible design, the stationary scroll plate assembly further includes an exhaust port. The exhaust port is provided on the stationary scroll plate and is communicated with the suction chamber. Along the direction from the exhaust port to the outer side wall of the stationary scroll plate, the suction chamber includes a plurality of chamber walls, and the outermost chamber wall among the plurality of chamber walls is the first chamber wall. Among them, the distance d between one side wall of any one of at least one heat insulation groove close to the suction chamber and the first chamber wall satisfies d > 3 mm.

[0032] In this design, the stationary scroll plate assembly further includes an exhaust port. Specifically, the exhaust port is provided on the stationary scroll plate and is communicated with the suction chamber, that is, the exhaust hole is communicated with the compression chamber of the scroll compressor through the suction chamber. During the operation of the scroll compressor, the low-temperature refrigerant passes through the suction channel, enters the compression chamber through the suction chamber, the motor drives the crankshaft to rotate, the crankshaft rotation drives the moving scroll plate to perform a rotary motion around the stationary scroll plate, and during the rotary motion, the volume of the compression chamber is continuously reduced, thereby increasing the pressure in the compression chamber to reach the specified operating conditions. The high-temperature and high-pressure refrigerant gas that meets the requirements is discharged to the shell through the exhaust port, and then discharged from the shell of the scroll compressor through the discharge channel to enter the system cycle.

[0033] Along the direction from the exhaust port to the outer side wall of the stationary scroll plate, the suction chamber includes a plurality of chamber walls, and the outermost chamber wall among the plurality of chamber walls is the first chamber wall. It can be understood that the outermost chamber wall among the plurality of chamber walls is the chamber wall closest to the outer side wall of the stationary scroll plate among the plurality of chamber walls, and this chamber wall is the first chamber wall. It is defined that the distance d between one side wall of any one of at least one heat insulation groove close to the suction chamber and the first chamber wall satisfies d > 3 mm, that is, the distance between the heat insulation groove and the suction chamber is defined. It can be understood that if this distance is too small, during the operation of the scroll compressor, the risk of leakage of the compression chamber of the scroll compressor will increase. Moreover, if this distance is too small, the structural strength of the stationary scroll plate will be reduced, and further the operation stability and reliability of the scroll compressor with the stationary scroll plate assembly will be reduced. By defining the distance between the first chamber wall and one side wall of the heat insulation groove close to the suction chamber, the sealing performance of the compression chamber of the scroll compressor can be ensured while ensuring the heat insulation effect of the heat insulation groove, and the structural strength of the stationary scroll plate can be ensured, and further the operation stability and reliability of the scroll compressor with the stationary scroll plate assembly can be improved.

[0034] It should be noted that the distance between the first cavity wall and the side wall of the heat insulation groove close to the suction cavity should not be too large. If this distance is set too large, in order to ensure the heat insulation effect of the heat insulation groove, the size of the stationary scroll plate will inevitably increase, thereby increasing the volume of the scroll compressor with this stationary scroll plate assembly and increasing the occupied space of the scroll compressor.

[0035] In a possible design, the stationary scroll plate assembly further includes a heat insulation member, and the heat insulation member is arranged in the heat insulation groove. Among them, the heat insulation member includes one of a heat insulation solid, a heat insulation liquid, and a heat insulation gas.

[0036] In this design, it is defined that the stationary scroll plate assembly further includes a heat insulation member. Specifically, a heat insulation member is arranged in the heat insulation groove to further effectively block the heat transfer between the heat of the high-temperature gas flowing through the outer wall of the stationary scroll plate and the low-temperature refrigerant in the suction cavity, effectively preventing the heat of the external high-temperature gas from transferring to the low-temperature refrigerant in the suction cavity through the outer wall of the stationary scroll plate, increasing the circulation amount of the low-temperature refrigerant, reducing the compression loss of the low-temperature refrigerant, thereby being able to effectively suppress the temperature rise in the compression cavity, improving the efficiency of the compressor, and further improving the performance of the compressor.

[0037] Among them, the heat insulation member can include one of a heat insulation solid, a heat insulation liquid, and a heat insulation gas. Specifically, if the heat insulation member is a solid heat insulation material, and the thermal conductivity of the heat insulation material is less than 10 w / m·k, to ensure the heat insulation effect of the solid heat insulation member.

[0038] If the heat insulation member is a liquid heat insulation material, such as an oil-based liquid, that is, the liquid heat insulation material is arranged in the heat insulation groove to further improve the heat insulation effect and hinder the heat transfer of the external high-temperature gas to the low-temperature refrigerant in the suction cavity. In addition, the heat insulation groove can be connected to the lubricating oil circuit of the scroll compressor to improve the heat insulation effect on the basis of ensuring the stable operation of the scroll compressor.

[0039] If the heat insulation member is a gas heat insulation material, such as air, gaseous refrigerant, or vacuum, it can be understood that if the heat insulation member is a gas heat insulation material and the gas heat insulation material is arranged in the heat insulation groove, the heat insulation groove needs to be sealed to prevent the leakage of the gas heat insulation material.

[0040] In a possible design, the heat insulation member includes a heat insulation gas, and the stationary scroll plate assembly further includes a sealing member, and the sealing member is arranged in the heat insulation groove.

[0041] In this design, it is defined that the stationary scroll disk assembly further includes a seal. Specifically, when the heat insulation member is made of a gas heat insulation material, and the gas heat insulation material is arranged in the heat insulation groove, it is necessary to seal the heat insulation groove to prevent the leakage of the gas heat insulation material. Specifically, the seal covers the notch of the heat insulation groove to seal the heat insulation groove. It can be understood that the seal can be a sealing plate, and the sealing plate covers the notch of the heat insulation groove to prevent the gas heat insulation material in the heat insulation groove from overflowing. By providing the seal, the heat insulation effect can be further improved on the basis of ensuring the sealing performance of the heat insulation groove.

[0042] In a possible design, the heat insulation groove is an arc-shaped groove. The plurality of arc-shaped grooves include a first arc-shaped groove and a second arc-shaped groove. The stationary scroll disk assembly further includes an air flow channel arranged on the outer side wall of the stationary scroll disk. The second arc-shaped groove is arranged closer to the air flow channel than the first arc-shaped groove. Among them, the circumferential length of the second arc-shaped groove is greater than the circumferential length of the first arc-shaped groove in the circumferential direction.

[0043] In this design, the shape of the heat insulation groove is defined. Specifically, the heat insulation groove is an arc-shaped groove, that is, the shape of the heat insulation groove is adapted to the shape of the outer side wall of the stationary scroll disk, so that the circumferential length of the arc-shaped groove can be appropriately increased to further improve the heat insulation effect of the heat insulation groove. Specifically, the plurality of arc-shaped grooves include a first arc-shaped groove and a second arc-shaped groove, and the second arc-shaped groove is arranged closer to the air flow channel than the first arc-shaped groove.

[0044] The stationary scroll disk assembly further includes an air flow channel. The external high-temperature gas mainly flows through the air flow channel, which causes the heat of the high-temperature gas to transfer heat to the low-temperature refrigerant in the suction cavity. By setting the circumferential length of the second arc-shaped groove closer to the air flow channel to be greater than the circumferential length of the first arc-shaped groove, that is, setting the circumferential length of the second arc-shaped groove closer to the air flow channel to be longer, to further block the heat transfer between the heat of the high-temperature gas and the low-temperature refrigerant in the suction cavity, further improve the heat insulation effect, increase the circulation amount of the low-temperature refrigerant, reduce the compression loss of the low-temperature refrigerant, so as to effectively suppress the temperature rise in the compression cavity, improve the efficiency of the compressor, and further improve the performance of the compressor.

[0045] It should be noted that since a plurality of air flow channels will be arranged on the outer side wall of the stationary scroll disk, correspondingly, a plurality of arc-shaped grooves will be arranged at intervals on the body, and the circumferential length of the arc-shaped grooves close to the plurality of air flow channels among the plurality of arc-shaped grooves is set to be longer to further improve the heat insulation effect.

[0046] In a possible design, the stationary scroll disk assembly further includes a reinforcing part arranged on the stationary scroll disk.

[0047] In this design, the stationary scroll disk assembly further includes a reinforcing portion. Specifically, the reinforcing portion is disposed on the stationary scroll disk. It can be understood that if the number of heat insulation grooves is one, the reinforcing portion is located between the head and the tail of the heat insulation groove; if the number of heat insulation grooves is multiple, the reinforcing portion is located between two adjacent heat insulation grooves. By providing the reinforcing portion, while preventing the heat of the external high-temperature gas from being transferred to the low-temperature refrigerant in the suction chamber, the structural strength of the stationary scroll disk can be further improved, the operation stability and reliability of the scroll compressor having the stationary scroll disk assembly can be enhanced, and the service life of the scroll compressor can be extended.

[0048] It should be noted that the reinforcing portion and the body can be an integral structure. The integral structure has good mechanical properties, which can further improve the structural strength of the stationary scroll disk, thereby enhancing the operation stability and reliability of the scroll compressor having the stationary scroll disk assembly, and effectively extending the service life of the scroll compressor.

[0049] In a possible design, the reinforcing portion is located between two adjacent heat insulation grooves among multiple heat insulation grooves.

[0050] In this design, when multiple heat insulation grooves are formed on the body, to ensure the structural strength of the stationary scroll disk, the multiple heat insulation grooves are circumferentially spaced on the body. By providing the reinforcing portion between two adjacent heat insulation grooves, the structural strength of the stationary scroll disk with multiple heat insulation grooves can be further improved, the heat insulation effect can be significantly enhanced, and at the same time, the operation stability and reliability of the scroll compressor having the stationary scroll disk assembly can be further improved, and the service life of the scroll compressor can be extended.

[0051] In a possible design, the body further includes a mounting portion and a transition portion. Among them, the mounting portion is used for fixed installation, and the transition portion is located between the mounting portion and the first cavity wall. The axial height of the transition portion is less than the axial height of the mounting portion, and the heat insulation groove is provided on the transition portion.

[0052] In this design, it is defined that the body further includes a mounting portion and a transition portion. Specifically, the mounting portion is used for fixed installation. It can be understood that the scroll compressor includes a moving scroll disk and a frame. The mounting portion is used to cooperate with the moving scroll disk to form a compressor, and then connect with the frame to realize the fixed installation of the stationary scroll disk assembly. Specifically, a plurality of mounting holes are formed on the mounting portion, and the stationary scroll disk is fixedly installed with the moving scroll disk and the frame through the plurality of mounting holes, ensuring the stable operation of the scroll compressor having the stationary scroll disk assembly.

[0053] The transition part is located between the first cavity wall and the mounting part, and the axial height of the transition part is lower than that of the mounting part, that is, the transition part has a certain initial depth, for example, 0 mm to 5 mm. It can be understood that during the operation of the scroll compressor, when the moving scroll disk rotates relative to the stationary scroll disk to compress the low-temperature refrigerant in the compression cavity, in order to ensure the operation stability, lubricating oil is provided at the position of the transition part. By providing the heat insulation groove at the position of the transition part, it is possible to avoid interfering with and affecting other structures of the stationary scroll disk when providing the heat insulation groove at other positions, and the lubricating oil flowing to the heat insulation groove at the transition part can also improve the heat insulation effect of the heat insulation groove.

[0054] It should be noted that if the initial depth of the transition part is 0 mm to 5 mm, then when providing the heat insulation groove, the axial depth of the heat insulation groove is greater than 5 mm to ensure the heat insulation effect.

[0055] According to the second aspect of the present invention, a scroll compressor is provided, which includes the stationary scroll disk assembly provided in any of the above technical solutions, and thus has all the beneficial technical effects of the stationary scroll disk assembly, which will not be elaborated herein.

[0056] Furthermore, the scroll compressor further includes a housing and a moving scroll disk. Among them, the stationary scroll disk assembly is disposed in the housing, and the moving scroll disk is disposed in the housing and cooperates with the stationary scroll disk of the stationary scroll disk assembly to form a compression cavity.

[0057] The scroll compressor provided by the embodiment of the present application includes a stationary scroll disk assembly, a housing and a moving scroll disk. Specifically, the moving scroll disk cooperates with the stationary scroll disk of the stationary scroll disk assembly to form a compression cavity. The stationary scroll disk further includes a suction passage. During the operation of the scroll compressor, the low-temperature refrigerant enters the suction cavity through the suction passage, passes through the suction passage, and enters the compression cavity through the suction cavity. The scroll compressor further includes a crankshaft and a motor. The motor drives the crankshaft to rotate, and the rotation of the crankshaft drives the moving scroll disk to rotate around the stationary scroll disk, and during the rotation process, the volume of the compression cavity is continuously reduced, thereby increasing the pressure in the compression cavity to reach the specified operating conditions. The high-temperature and high-pressure refrigerant gas that meets the requirements is discharged to the housing through the exhaust port of the stationary scroll disk, and then discharged from the scroll compressor through the discharge passage of the housing and enters the system cycle. This is the working process of the scroll compressor.

[0058] According to the third aspect of the present invention, an air conditioner is provided, which includes the scroll compressor provided in any of the above technical solutions, and thus has all the beneficial technical effects of the scroll compressor, which will not be elaborated herein.

[0059] The additional aspects and advantages of the present invention will be given in the following description part, some of which will become obvious from the following description, or can be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the following description of embodiments in conjunction with the accompanying drawings, wherein:

[0061] Figure 1 FIG. 1 shows one of the schematic structural diagrams of a stationary scroll disk assembly according to an embodiment of the present invention;

[0062] Figure 2 FIG. 2 shows another schematic structural diagram of a stationary scroll disk assembly according to an embodiment of the present invention;

[0063] Figure 3 FIG. 3 shows a third schematic structural diagram of a stationary scroll disk assembly according to an embodiment of the present invention;

[0064] Figure 4 FIG. 4 shows a fourth schematic structural diagram of a stationary scroll disk assembly according to an embodiment of the present invention;

[0065] Figure 5 FIG. 5 shows a fifth schematic structural diagram of a stationary scroll disk assembly according to an embodiment of the present invention;

[0066] Figure 6 FIG. 6 shows a sixth schematic structural diagram of a stationary scroll disk assembly according to an embodiment of the present invention;

[0067] Figure 7 FIG. 7 shows a seventh schematic structural diagram of a stationary scroll disk assembly according to an embodiment of the present invention;

[0068] Figure 8 FIG. 8 shows an eighth schematic structural diagram of a stationary scroll disk assembly according to an embodiment of the present invention;

[0069] Figure 9 FIG. 9 shows a ninth schematic structural diagram of a stationary scroll disk assembly according to an embodiment of the present invention;

[0070] Figure 10 FIG. 10 shows a tenth schematic structural diagram of a stationary scroll disk assembly according to an embodiment of the present invention;

[0071] Figure 11 FIG. 11 shows one of the partial schematic structural diagrams of a scroll compressor according to an embodiment of the present invention;

[0072] Figure 12 FIG. 12 shows another partial schematic structural diagram of a scroll compressor according to an embodiment of the present invention.

[0073] Wherein, Figures 1 to 12 the corresponding relationship between the reference numerals and the component names in the figures is as follows:

[0074] 100 Stationary scroll disk assembly, 110 stationary scroll disk, 111 body, 1111 mounting portion, 1112 transition portion, 112 stationary scroll teeth, 120 heat insulation groove, 121 first arc groove, 122 second arc groove, 130 exhaust port, 140 heat insulation member, 150 seal, 160 air flow channel, 170 strengthening portion, 180 suction cavity, 181 first cavity wall, 190 suction channel, 210 housing, 220 moving scroll disk. Detailed implementation manners

[0075] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0076] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0077] The following refers to Figures 1 to 12 to describe a stationary scroll disk assembly 100, a scroll compressor and an air conditioner provided according to some embodiments of the present invention.

[0078] Embodiment 1:

[0079] As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 11 and Figure 12 shown, an embodiment of the first aspect of the present invention provides a stationary scroll disk assembly 100, the stationary scroll disk assembly 100 includes a stationary scroll disk 110 and at least one heat insulation groove 120. Among them, the stationary scroll disk 110 includes a suction cavity 180, the suction cavity 180 is in communication with the outside, and at least one heat insulation groove 120 is provided on the stationary scroll disk 110.

[0080] The stationary scroll assembly 100 provided by the embodiment of the present invention includes a stationary scroll 110 and at least one heat insulation groove 120. Specifically, the stationary scroll 110 includes a suction cavity 180 which can communicate with the outside. It can be understood that the scroll compressor further includes a suction passage 190 provided on the stationary scroll 110. During the operation of the scroll compressor, the low-temperature refrigerant enters the suction cavity 180 through the suction passage 190. The scroll compressor includes a stationary scroll assembly 100 and a moving scroll 220. The stationary scroll 110 cooperates with the moving scroll 220 to form a compression cavity. The low-temperature refrigerant passes through the suction passage 190 and enters the compression cavity through the suction cavity 180. The scroll compressor further includes a crankshaft and a motor. The motor drives the crankshaft to rotate. The rotation of the crankshaft drives the moving scroll 220 to perform a revolving motion around the stationary scroll 110, and during the revolving motion, the volume of the compression cavity continuously decreases, thereby increasing the pressure in the compression cavity to reach the specified operating conditions. The stationary scroll assembly 100 further includes an exhaust port 130 which is provided on the stationary scroll 110 and communicates with the compression cavity. The high-temperature and high-pressure refrigerant gas that meets the requirements is discharged into the housing 210 through the exhaust port 130, and then discharged from the scroll compressor through the discharge passage of the housing 210 to enter the system cycle. This is the working process of the scroll compressor, that is, the suction cavity 180 is in communication with the outside is realized.

[0081] At least one heat insulation groove 120 is provided on the stationary scroll 110, that is, one or more heat insulation grooves 120 are opened on the stationary scroll 110. It can be understood that heat insulation medium can be placed in the heat insulation groove 120. Thus, during the operation of the scroll compressor, by providing at least one heat insulation groove 120 on the stationary scroll 110, it can effectively prevent the heat of the external high-temperature gas from transferring to the low-temperature refrigerant in the suction cavity 180 through the outer wall of the stationary scroll 110, improve the circulation amount of the low-temperature refrigerant, reduce the compression loss of the low-temperature refrigerant, thereby effectively suppressing the temperature rise in the compression cavity, improving the efficiency of the compressor, and further improving the performance of the compressor.

[0082] It should be noted that the number of the heat insulation grooves 120 should not be too many. If too many heat insulation grooves 120 are opened on the stationary scroll 110, the strength of the stationary scroll 110 will be reduced, and the service life of the scroll compressor with the stationary scroll assembly 100 will be shortened.

[0083] In addition, a heat insulation groove 120 is formed on the stationary scroll plate 110. It can be understood that the stationary scroll plate 110 includes a body 111 and stationary scroll teeth 112. The heat insulation groove 120 can be formed on the body 111, or of course, on the stationary scroll teeth 112. During the operation of the scroll compressor, the stationary scroll teeth 112 need to cooperate with the moving scroll teeth on the moving scroll plate 220 to form a compression chamber. Therefore, if the heat insulation groove 120 is formed on the stationary scroll teeth 112, the strength of the stationary scroll teeth 112 will be reduced. Thus, in practical applications, the heat insulation groove 120 is generally formed on the body 111 to prevent the external high-temperature gas from transferring heat to the low-temperature refrigerant in the suction chamber 180 while ensuring the strength of the stationary scroll plate 110. Moreover, the stationary scroll teeth 112 are generally arranged at the central position of the body 111, and the external high-temperature gas mainly transfers from the outer side wall of the stationary scroll plate 110 into the suction chamber 180. By providing the heat insulation groove 120 on the body 111, that is, providing the heat insulation groove 120 between the suction chamber 180 and the outer side wall of the stationary scroll plate 110, the heat insulation effect of the heat insulation groove 120 can be further improved without affecting the strength of the stationary scroll plate 110.

[0084] Embodiment 2:

[0085] As Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 and Figure 12 As shown in

[0086] In this embodiment, the specific structure of the stationary scroll plate 110 is defined. Specifically, the stationary scroll plate 110 further includes a body 111 and stationary scroll teeth 112. Among them, an installation opening is provided on the body 111, and the stationary scroll teeth 112 are located within the installation opening, so that the stationary scroll teeth 112 and at least a part of the body 111 and the installation opening form a suction chamber 180. At least one heat insulation groove 120 is provided on the body 111, that is, the installation position of at least one heat insulation groove 120 is specifically defined. It can be understood that by providing at least one heat insulation groove 120 on the body 111, that is, by defining that at least one heat insulation groove 120 is provided between the outer side wall of the stationary scroll plate 110 and the suction chamber 180. Since the external high-temperature gas mainly transfers from the outer side wall of the stationary scroll plate 110 into the suction chamber 180, by providing at least one heat insulation groove 120 on the body 111 between the outer side wall of the stationary scroll plate 110 and the suction chamber 180, the external high-temperature gas can be effectively blocked from the low-temperature refrigerant in the suction chamber 180, preventing the heat of the high-temperature gas from transferring to the low-temperature refrigerant in the suction chamber 180, thereby effectively suppressing the temperature rise in the compression chamber of the scroll compressor, and further improving the performance of the scroll compressor having the stationary scroll plate assembly 100.

[0087] In addition, the body 111 and the stationary scroll teeth 112 can be of an integral structure. It can be understood that the integral structure has good mechanical properties, so that the connection strength between the body 111 and the stationary scroll teeth 112 can be improved, and further the matching stability between the stationary scroll plate 110 and the moving scroll plate 220 of the scroll compressor can be ensured, and the operation stability and service life of the scroll compressor having the stationary scroll plate assembly 100 can be improved.

[0088] As Figure 3 、 Figure 5 and Figure 6 shown, in a specific embodiment, further, the number of at least one heat insulation groove 120 is multiple, and the multiple heat insulation grooves 120 are spaced apart.

[0089] In this embodiment, the number and distribution mode of the heat insulation grooves 120 are defined. Specifically, the multiple heat insulation grooves 120 are spaced apart on the body 111. It can be understood that by providing multiple heat insulation grooves 120 on the body 111, the external high-temperature gas can be further blocked from the low-temperature refrigerant in the suction chamber 180, significantly improving the heat transfer of the high-temperature gas to the low-temperature refrigerant in the suction chamber 180, significantly suppressing the temperature rise in the compression chamber of the scroll compressor, and further improving the performance of the scroll compressor having the stationary scroll plate assembly 100.

[0090] It can be understood that multiple heat insulation grooves 120 can be arranged at intervals in the circumferential direction of the body 111. Since the external high-temperature gas mainly transfers from the outer side wall of the stationary scroll plate 110 into the suction cavity 180, by arranging multiple heat insulation grooves 120 in the circumferential direction of the body 111, the heat of the external high-temperature gas can be blocked from all around the suction cavity 180, further improving the heat insulation effect of the heat insulation grooves 120.

[0091] In addition, by arranging multiple heat insulation grooves 120 at intervals on the body 111, while ensuring the heat insulation effect of the heat insulation grooves 120, the structural strength of the stationary scroll plate 110 can be ensured, preventing the strength of the stationary scroll plate 110 from being reduced due to arranging multiple heat insulation grooves 120 in a circumferentially penetrating manner on the body 111 to ensure the heat insulation effect of the heat insulation grooves 120. By arranging multiple heat insulation grooves 120 at intervals on the body 111, while improving the heat insulation effect of the heat insulation grooves 120, the service life of the scroll compressor assembly 100 can be extended, and further the operation stability and reliability of the scroll compressor having the scroll compressor assembly 100 can be improved.

[0092] In another specific embodiment, further, at least one heat insulation groove 120 extends axially.

[0093] In this embodiment, the extending direction of the heat insulation groove 120 is further defined. Specifically, at least one heat insulation groove 120 extends axially, that is, at least one heat insulation groove 120 extends along the axial direction of the body 111. Since the external high-temperature gas mainly transfers from the outer side wall of the stationary scroll plate 110 to the low-temperature refrigerant in the suction cavity 180. It can be understood that if at least one heat insulation groove 120 extends along the radial direction or other directions, the thickness between the groove wall of the heat insulation groove 120 and the outer side wall of the stationary scroll plate 110 will be reduced to a certain extent, reducing the heat insulation effect of the heat insulation groove 120. By extending at least one heat insulation groove 120 axially, the heat of the high-temperature gas transferred from the outer side wall of the stationary scroll plate 110 can be effectively blocked from the low-temperature refrigerant in the suction cavity 180, effectively suppressing the temperature rise in the compression cavity of the scroll compressor, and further improving the performance of the scroll compressor having the scroll compressor assembly 100.

[0094] It should be noted that when the number of at least one heat insulation groove 120 is multiple, the extending direction of any one of the multiple heat insulation grooves 120 can be set to extend axially to further improve the heat insulation effect of the heat insulation grooves 120.

[0095] Embodiment Three:

[0096] As Figure 12As shown in the figure, on the basis of the above embodiments, further, for any one of the at least one heat insulation groove 120, the width T in the radial direction of the heat insulation groove 120 and the average thickness t of the stationary scroll tooth 112 satisfy 0.5 ≤ T / t ≤ 1.2.

[0097] In this embodiment, the width in the radial direction of the heat insulation groove 120 is defined. Specifically, for any one of the at least one heat insulation groove 120, the width T in the radial direction of the heat insulation groove 120 and the average thickness t of the stationary scroll tooth 112 satisfy 0.5 ≤ T / t ≤ 1.2. It can be understood that the width in the radial direction of the heat insulation groove 120 should not be too wide. If it is too wide, the structural strength of the stationary scroll disk 110 will be reduced, and further the operation stability and reliability of the scroll compressor with the stationary scroll disk assembly 100 will be reduced.

[0098] In addition, the width in the radial direction of the heat insulation groove 120 should not be too narrow. If it is too narrow, it cannot ensure the effective blocking of heat transfer between the high-temperature gas flowing through the outer wall of the stationary scroll disk 110 and the low-temperature refrigerant in the suction chamber 180, reducing the heat insulation effect of the heat insulation groove 120. By making the width T in the radial direction of any one of the at least one heat insulation groove 120 and the average thickness t of the stationary scroll tooth 112 satisfy 0.5 ≤ T / t ≤ 1.2, it is possible to ensure the heat insulation effect of the heat insulation groove 120 while ensuring the structural strength of the stationary scroll disk 110, and improve the operation stability and reliability of the scroll compressor with the stationary scroll disk assembly 100.

[0099] In addition, in one heat insulation groove 120, the widths at any positions may not be equal. If the widths of the heat insulation groove 120 are not equal, then the radial widths at any positions in one heat insulation groove 120 need to satisfy the above relationship, so as to ensure the heat insulation effect of the heat insulation groove 120 while ensuring the structural strength of the stationary scroll disk 110. In addition, the widths at any positions in one heat insulation groove 120 may be equal. The heat insulation groove 120 with equal width is convenient for processing, reduces the processing difficulty of the stationary scroll disk 110, and further can reduce the production cost of the scroll compressor with the stationary scroll disk assembly 100.

[0100] As Figure 11 shown, further, for any one of the at least one heat insulation groove 120, the depth H in the axial direction of the heat insulation groove 120 and the maximum height h in the axial direction of the stationary scroll tooth 112 satisfy 0.9 ≤ H / h ≤ 1.1.

[0101] In this embodiment, the depth of the heat insulation groove 120 in the axial direction is defined. Specifically, for any one of the at least one heat insulation groove 120, the depth H in the axial direction of the heat insulation groove 120 and the maximum height h in the axial direction of the stationary scroll tooth 112 satisfy 0.9 ≤ H / h ≤ 1.1. It can be understood that the depth of the heat insulation groove 120 in the axial direction should not be too deep. If it is too deep, on the one hand, the structural strength of the stationary scroll plate 110 will be reduced. On the other hand, if the heat insulation groove 120 is opened too deep on the body 111, during the operation of the scroll compressor, the risk of gas leakage from the compression chamber will increase, thereby reducing the operation stability and reliability of the scroll compressor with the stationary scroll plate assembly 100.

[0102] In addition, the depth of the heat insulation groove 120 in the axial direction should not be too shallow. If it is too shallow, it cannot ensure the effective block of heat transfer between the high-temperature gas flowing through the outer wall of the stationary scroll plate 110 and the low-temperature refrigerant in the suction chamber 180, reducing the heat insulation effect of the heat insulation groove 120. By making the depth H in the axial direction of any one of the at least one heat insulation groove 120 and the maximum height h in the axial direction of the stationary scroll tooth 112 satisfy 0.9 ≤ H / h ≤ 1.1, it is possible to ensure the heat insulation effect of the heat insulation groove 120 while ensuring the structural strength of the stationary scroll plate 110 and the sealing performance of the compression chamber of the scroll compressor, improving the operation stability and reliability of the scroll compressor with the stationary scroll plate assembly 100.

[0103] In addition, in one heat insulation groove 120, the depths at any positions may not be equal. If the depths at any positions in the heat insulation groove 120 are not equal, then the axial depths at any positions in one heat insulation groove 120 need to satisfy the above relationship, so as to ensure the heat insulation effect of the heat insulation groove 120 while ensuring the structural strength of the stationary scroll plate 110 and the sealing performance of the compression chamber of the scroll compressor. In addition, the depths at any positions in one heat insulation groove 120 can be equal, which can facilitate processing, reduce the processing difficulty of the stationary scroll plate 110, and thus reduce the production cost of the scroll compressor with the stationary scroll plate assembly 100.

[0104] Embodiment 4:

[0105] Such as Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 and Figure 12As shown, on the basis of any of the above embodiments, further, the stationary scroll assembly 100 further includes an exhaust port 130. The exhaust port 130 is provided on the stationary scroll 110 and is in communication with the suction chamber 180. Along the direction from the exhaust port 130 to the outer wall of the stationary scroll 110, the suction chamber 180 includes a plurality of chamber walls, and the outermost chamber wall among the plurality of chamber walls is the first chamber wall 181. Among them, the distance d between any one of the at least one heat insulation groove 120 and the first chamber wall 181 on the side close to the suction chamber 180 satisfies d > 3 mm.

[0106] In this embodiment, the stationary scroll assembly 100 further includes an exhaust port 130. Specifically, the exhaust port 130 is provided on the stationary scroll 110 and is in communication with the suction chamber 180, that is, the exhaust hole is in communication with the compression chamber of the scroll compressor through the suction chamber 180. During the operation of the scroll compressor, the low-temperature refrigerant passes through the suction passage 190, enters the compression chamber through the suction chamber 180. The motor drives the crankshaft to rotate, and the rotation of the crankshaft drives the moving scroll 220 to perform a rotary motion around the stationary scroll 110. During the rotary motion, the volume of the compression chamber is continuously reduced, thereby increasing the pressure in the compression chamber to reach the specified operating conditions. The required high-temperature and high-pressure refrigerant gas is discharged to the inside of the housing 210 through the exhaust port 130, and then discharged from the housing 210 of the scroll compressor into the system cycle.

[0107] Along the direction from the exhaust port 130 to the outer wall of the stationary scroll 110, the suction chamber 180 includes a plurality of chamber walls, and the outermost chamber wall among the plurality of chamber walls is the first chamber wall 181. It can be understood that the outermost chamber wall among the plurality of chamber walls is the chamber wall closest to the outer wall of the stationary scroll 110 among the plurality of chamber walls, and this chamber wall is the first chamber wall 181. It is defined that the distance d between any one of the at least one heat insulation groove 120 and the first chamber wall 181 on the side close to the suction chamber 180 satisfies d > 3 mm, that is, the distance between the heat insulation groove 120 and the suction chamber 180 is defined. It can be understood that if this distance is too small, during the operation of the scroll compressor, the risk of leakage of the compression chamber of the scroll compressor will increase. Moreover, if this distance is too small, the structural strength of the stationary scroll 110 will be reduced, and further the operation stability and reliability of the scroll compressor with the stationary scroll assembly 100 will be reduced. By defining the distance between the first chamber wall 181 and the side wall of the heat insulation groove 120 close to the suction chamber 180, while ensuring the heat insulation effect of the heat insulation groove 120, the sealing performance of the compression chamber of the scroll compressor can be ensured, and the structural strength of the stationary scroll 110 can be ensured, thereby improving the operation stability and reliability of the scroll compressor with the stationary scroll assembly 100.

[0108] It should be noted that the distance between the first cavity wall 181 and the side wall of the heat insulation groove 120 close to the suction cavity 180 should not be too large. If this distance is set too large, in order to ensure the heat insulation effect of the heat insulation groove 120, the size of the stationary scroll plate 110 will inevitably increase, thereby increasing the volume of the scroll compressor with the stationary scroll plate assembly 100 and increasing the occupied space of the scroll compressor.

[0109] Embodiment Five:

[0110] As Figure 9 and Figure 10 shown, on the basis of the above embodiment, further, the stationary scroll plate assembly 100 further includes a heat insulation member 140, and the heat insulation member 140 is disposed in the heat insulation groove 120. Among them, the heat insulation member 140 includes one of a heat insulation solid, a heat insulation liquid, and a heat insulation gas.

[0111] In this embodiment, it is defined that the stationary scroll plate assembly 100 further includes a heat insulation member 140. Specifically, the heat insulation member 140 is disposed in the heat insulation groove 120 to further effectively block the heat transfer between the heat of the high-temperature gas flowing through the outer side wall of the stationary scroll plate 110 and the low-temperature refrigerant in the suction cavity 180, effectively preventing the heat of the external high-temperature gas from transferring heat to the low-temperature refrigerant in the suction cavity 180 through the outer side wall of the stationary scroll plate 110, increasing the circulation amount of the low-temperature refrigerant, reducing the compression loss of the low-temperature refrigerant, thereby being able to effectively suppress the temperature rise in the compression cavity, improving the efficiency of the compressor, and further improving the performance of the compressor.

[0112] Among them, the heat insulation member 140 may include one of a heat insulation solid, a heat insulation liquid, and a heat insulation gas. Specifically, if the heat insulation member 140 is a solid heat insulation material, and the thermal conductivity of the heat insulation material is less than 10 w / m·k, to ensure the heat insulation effect of the solid heat insulation member 140.

[0113] If the heat insulation member 140 is a liquid heat insulation material, such as an oil-based liquid, that is, the liquid heat insulation material is disposed in the heat insulation groove 120 to further improve the heat insulation effect and hinder the heat of the external high-temperature gas from transferring heat to the low-temperature refrigerant in the suction cavity 180. In addition, the heat insulation groove 120 can be communicated with the lubricating oil circuit of the scroll compressor to improve the heat insulation effect on the basis of ensuring the stable operation of the scroll compressor.

[0114] If the heat insulation member 140 is a gas heat insulation material, such as air, gaseous refrigerant, or vacuum, it can be understood that if the heat insulation member 140 is a gas heat insulation material and the gas heat insulation material is disposed in the heat insulation groove 120, then the heat insulation groove 120 needs to be sealed to prevent the gas heat insulation material from leaking.

[0115] As shown in the following table, in Solution 1, no heat insulation groove is provided on the stationary scroll disk; in Solution 2, a heat insulation groove is provided on the stationary scroll disk; in Solution 3, a heat insulation groove is provided on the stationary scroll disk, and a nylon material (heat insulation member) is arranged in the heat insulation groove. The cooling capacity, input power, and COP of the above three solutions under different working conditions are detected.

[0116] As can be seen from the following table, by providing a heat insulation groove on the stationary scroll disk, the cooling capacity and input power can be improved. Especially when a heat insulation member is arranged in the heat insulation groove, the cooling capacity and input power can be further improved, the efficiency of the compressor can be increased, and thus the performance of the compressor can be improved.

[0117]

[0118] As Figure 7 shown, in a specific embodiment, further, the heat insulation member 140 includes heat insulation gas, and the stationary scroll disk assembly 100 further includes a seal 150, and the seal 150 is arranged in the heat insulation groove 120.

[0119] In this embodiment, it is defined that the stationary scroll disk assembly 100 further includes a seal 150. Specifically, when the heat insulation member 140 is a gas heat insulation material, and the gas heat insulation material is arranged in the heat insulation groove 120, the heat insulation groove 120 needs to be sealed to prevent the leakage of the gas heat insulation material. Specifically, the seal 150 covers the notch of the heat insulation groove 120 to seal the heat insulation groove 120. It can be understood that the seal 150 can be a sealing plate, and the sealing plate covers the notch of the heat insulation groove 120 to prevent the gas heat insulation material in the heat insulation groove 120 from overflowing. By providing the seal 150, the heat insulation effect can be further improved on the basis of ensuring the sealing performance of the heat insulation groove 120.

[0120] Embodiment Six:

[0121] As Figure 3 shown, on the basis of the above embodiment, further, the heat insulation groove 120 is an arc-shaped groove. The plurality of arc-shaped grooves include a first arc-shaped groove 121 and a second arc-shaped groove 122. The stationary scroll disk assembly 100 further includes an air flow channel 160. The air flow channel 160 is arranged on the outer side wall of the stationary scroll disk 110. The second arc-shaped groove 122 is arranged closer to the air flow channel 160 than the first arc-shaped groove 121. Among them, the length of the second arc-shaped groove 122 in the circumferential direction is greater than the length of the first arc-shaped groove 121 in the circumferential direction.

[0122] In this embodiment, the shape of the heat insulation groove 120 is defined. Specifically, the heat insulation groove 120 is an arc-shaped groove, that is, the shape of the heat insulation groove 120 is adapted to the shape of the outer side wall of the stationary scroll disk 110, so that the length of the arc-shaped groove in the circumferential direction can be appropriately increased to further improve the heat insulation effect of the heat insulation groove 120. Specifically, the multiple arc-shaped grooves include a first arc-shaped groove 121 and a second arc-shaped groove 122, and the second arc-shaped groove 122 is arranged closer to the air flow channel 160 than the first arc-shaped groove 121.

[0123] The stationary scroll disk assembly 100 further includes an air flow channel 160. The external high-temperature gas mainly flows through the air flow channel 160, resulting in heat transfer from the high-temperature gas to the low-temperature refrigerant in the suction cavity 180. By setting the circumferential length of the second arc-shaped groove 122 closer to the air flow channel 160 to be greater than that of the first arc-shaped groove 121, that is, setting the circumferential length of the second arc-shaped groove 122 closer to the air flow channel 160 to be longer, to further block the heat transfer between the heat of the high-temperature gas and the low-temperature refrigerant in the suction cavity 180, further improve the heat insulation effect, increase the circulation amount of the low-temperature refrigerant, reduce the compression loss of the low-temperature refrigerant, so as to effectively suppress the temperature rise in the compression cavity, improve the efficiency of the compressor, and further improve the performance of the compressor.

[0124] It should be noted that since a plurality of air flow channels 160 are provided on the outer side wall of the stationary scroll disk 110, a plurality of arc-shaped grooves are correspondingly arranged at intervals on the body 111, and the circumferential length of the arc-shaped grooves closer to the plurality of air flow channels 160 among the plurality of arc-shaped grooves is set to be longer to further improve the heat insulation effect.

[0125] Embodiment Seven:

[0126] As Figure 3 shown, on the basis of the above embodiment, further, the stationary scroll disk assembly 100 further includes a strengthening portion 170, and the strengthening portion 170 is arranged on the stationary scroll disk 110.

[0127] In this embodiment, the stationary scroll disk assembly 100 further includes a strengthening portion 170. Specifically, the strengthening portion 170 is arranged on the stationary scroll disk 110. It can be understood that if the number of the heat insulation grooves 120 is one, the strengthening portion 170 is located between the head and the tail of the heat insulation groove 120. If the number of the heat insulation grooves 120 is multiple, the strengthening portion 170 is located between two adjacent heat insulation grooves 120. By providing the strengthening portion 170, while preventing the heat of the external high-temperature gas from being transferred to the low-temperature refrigerant in the suction cavity 180, the structural strength of the stationary scroll disk 110 can be further improved, the operation stability and reliability of the scroll compressor with the stationary scroll disk assembly 100 can be improved, and the service life of the scroll compressor can be extended.

[0128] It should be noted that the reinforcing part 170 can be an integral structure with the body 111. The integral structure has good mechanical properties, can further improve the structural strength of the stationary scroll plate 110, and then improve the operation stability and reliability of the scroll compressor with the stationary scroll plate assembly 100, effectively extending the service life of the scroll compressor.

[0129] In a specific embodiment, further, the reinforcing part 170 is located between two adjacent heat insulation grooves 120 among the plurality of heat insulation grooves 120.

[0130] In this embodiment, when a plurality of heat insulation grooves 120 are formed in the body 111, to ensure the structural strength of the stationary scroll plate 110, the plurality of heat insulation grooves 120 are distributed at intervals in the circumferential direction of the body 111. By arranging the reinforcing part 170 between two adjacent heat insulation grooves 120, the structural strength of the stationary scroll plate 110 with a plurality of heat insulation grooves 120 is further improved, the heat insulation effect is significantly improved, and at the same time, the operation stability and reliability of the scroll compressor with the stationary scroll plate assembly 100 are further improved, and the service life of the scroll compressor is extended.

[0131] As Figure 6 shown, in a specific embodiment, further, the body 111 further includes a mounting part 1111 and a transition part 1112. Among them, the mounting part 1111 is used for fixed installation, and the transition part 1112 is located between the mounting part 1111 and the first cavity wall 181. The axial height of the transition part 1112 is less than the axial height of the mounting part 1111, and the heat insulation groove 120 is arranged on the transition part 1112.

[0132] In this embodiment, it is defined that the body 111 further includes a mounting part 1111 and a transition part 1112. Specifically, the mounting part 1111 is used for fixed installation. It can be understood that the scroll compressor includes a moving scroll plate 220 and a frame. The mounting part 1111 is used to cooperate with the moving scroll plate 220 to form a compressor, and then connect with the frame to realize the fixed installation of the stationary scroll plate assembly 100. Specifically, a plurality of mounting holes are formed in the mounting part 1111, and the stationary scroll plate 110 realizes fixed installation with the moving scroll plate 220 and the frame through the plurality of mounting holes, ensuring the stable operation of the scroll compressor with the stationary scroll plate assembly 100.

[0133] The transition part 1112 is located between the first cavity wall 181 and the mounting part 1111, and the axial height of the transition part 1112 is lower than that of the mounting part 1111. That is, the transition part 1112 has a certain initial depth, such as 0 mm to 5 mm. It can be understood that during the operation of the scroll compressor, if the moving scroll disk 220 rotates relative to the stationary scroll disk 110 to compress the low-temperature refrigerant in the compression cavity, in order to ensure the operation stability, lubricating oil will be provided at the position of the transition part 1112. By arranging the heat insulation groove 120 at the position where the transition part 1112 is located, it can avoid interfering with and affecting other structures of the stationary scroll disk 110 when the heat insulation groove 120 is arranged at other positions. Moreover, when the lubricating oil of the transition part 1112 flows to the heat insulation groove 120, it can also improve the heat insulation effect of the heat insulation groove 120.

[0134] It should be noted that if the initial depth of the transition part 1112 is 0 mm to 5 mm, then when the heat insulation groove 120 is opened, the axial depth of the heat insulation groove 120 is greater than 5 mm to ensure the heat insulation effect.

[0135] Embodiment Eight:

[0136] As Figure 1 and Figure 2 shown, according to the second aspect of the present invention, a scroll compressor is provided, which includes the stationary scroll disk assembly 100 provided in any of the above embodiments, and thus has all the beneficial technical effects of the stationary scroll disk assembly 100, which will not be elaborated here.

[0137] Furthermore, the scroll compressor further includes a housing 210 and a moving scroll disk 220. Among them, the stationary scroll disk assembly 100 is arranged in the housing 210, and the moving scroll disk 220 is arranged in the housing 210 and cooperates with the stationary scroll disk 110 of the stationary scroll disk assembly 100 to form a compression cavity.

[0138] The scroll compressor provided by the embodiment of the present application includes a stationary scroll assembly 100, a housing 210, and a moving scroll 220. Specifically, the moving scroll 220 cooperates with the stationary scroll 110 of the stationary scroll assembly 100 to form a compression chamber. The stationary scroll 110 further includes a suction passage 190. During the operation of the scroll compressor, the low-temperature refrigerant enters the suction chamber 180 through the suction passage 190. The low-temperature refrigerant passes through the suction passage 190 and enters the compression chamber through the suction chamber 180. The scroll compressor further includes a crankshaft and a motor. The motor drives the crankshaft to rotate. The rotation of the crankshaft drives the moving scroll 220 to perform a swing motion around the stationary scroll 110, and during the swing motion, the volume of the compression chamber is continuously reduced, thereby increasing the pressure in the compression chamber to reach the specified operating conditions. The high-temperature and high-pressure refrigerant gas that meets the requirements is discharged into the housing 210 through the exhaust port 130 of the stationary scroll 110, and then discharged from the scroll compressor through the discharge passage of the housing 210 and enters the system cycle. This is the working process of the scroll compressor.

[0139] Embodiment Nine:

[0140] According to the third aspect of the present invention, an air conditioner is provided, which includes the scroll compressor provided in any of the above embodiments, and thus has all the beneficial technical effects of the scroll compressor, which will not be elaborated here.

[0141] In the description of this specification, terms such as "connection", "installation", "fixation", etc. should all be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0142] In the description of this specification, the description of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0143] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A stationary scroll disk assembly, characterized in that, Comprising: A stationary scroll disk, the stationary scroll disk including a suction chamber which communicates with the outside; At least one heat insulation groove provided on the stationary scroll disk; The heat insulation groove is an arc-shaped groove, and a plurality of the arc-shaped grooves include a first arc-shaped groove and a second arc-shaped groove. The stationary scroll disk assembly further includes: An air flow channel provided on the outer side wall of the stationary scroll disk, and the second arc-shaped groove is arranged closer to the air flow channel than the first arc-shaped groove; Wherein, the length of the second arc-shaped groove in the circumferential direction is greater than the length of the first arc-shaped groove in the circumferential direction; The stationary scroll disk further includes a body; The at least one heat insulation groove is provided on the body; A plurality of the air flow channels are provided on the outer side wall of the stationary scroll disk, and a plurality of the arc-shaped grooves are arranged at intervals on the body.

2. The scroll plate assembly according to claim 1, wherein The stationary scroll disk further includes: The body has a mounting opening; Stationary scroll teeth provided on the body and located within the mounting opening, and the stationary scroll teeth and the body form the suction chamber.

3. The stationary scroll disk assembly according to claim 2, wherein The number of the at least one heat insulation groove is multiple, and the multiple heat insulation grooves are distributed at intervals.

4. The stationary scroll disk assembly according to claim 1, wherein The at least one heat insulation groove extends axially.

5. The stationary scroll disk assembly according to claim 2, wherein For any one of the at least one heat insulation groove, the width T in the radial direction and the average thickness t of the stationary scroll teeth satisfy 0.5 ≤ T / t ≤ 1.

2.

6. The stationary scroll disk assembly according to claim 2, wherein For any one of the at least one heat insulation groove, the depth H in the axial direction and the maximum height h in the axial direction of the stationary scroll teeth satisfy 0.9 ≤ H / h ≤ 1.

1.

7. The scroll plate assembly according to any one of claims 1 to 6, characterized in that, The stationary scroll disk assembly further includes: An exhaust port provided on the stationary scroll disk, the exhaust port communicating with the suction chamber. Along the direction from the exhaust port to the outer side wall of the stationary scroll disk, the suction chamber includes a plurality of chamber walls, and the outermost chamber wall among the plurality of chamber walls is the first chamber wall; Wherein, for any one of the at least one heat insulation groove, the distance d between the side wall close to the suction chamber and the first chamber wall satisfies d > 3 mm.

8. The scroll plate assembly according to any one of claims 1 to 6, characterized in that The stationary scroll disk assembly further includes: A heat insulation member provided in the heat insulation groove; Wherein, the heat insulation member includes one of a heat insulation solid, a heat insulation liquid, and a heat insulation gas.

9. The scroll plate assembly according to claim 8, wherein The heat insulation member includes a heat insulation gas, and the stationary scroll disk assembly further includes: A sealing member provided in the heat insulation groove.

10. The scroll plate assembly according to any one of claims 1 to 6, characterized in that, The stationary scroll disk assembly further includes: A reinforcing portion provided on the stationary scroll disk.

11. The stationary scroll disk assembly according to claim 10, wherein The reinforcing portion is located between two adjacent ones of the plurality of heat insulation grooves.

12. The scroll plate assembly according to claim 7, wherein, The body further includes: A mounting portion for fixed installation; A transition portion located between the mounting portion and the first chamber wall, and the axial height of the transition portion is less than the axial height of the mounting portion; Wherein, the heat insulation groove is provided on the transition portion.

13. A scroll compressor, characterized in that, Comprising: The stationary scroll disk assembly according to any one of claims 1 to 12; A housing, and the stationary scroll disk assembly is provided within the housing; The moving scroll disk is disposed within the housing and cooperates with the stationary scroll disk of the stationary scroll disk assembly to form a compression chamber.

14. An air conditioner, characterized in that, A scroll compressor includes the one described in claim 13.

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