Scroll compressor

Abstract

The utility model provides a scroll compressor and relates to the technical field of compressors. The scroll compressor includes: a housing including a cavity and an exhaust port; the partition plate is arranged in the shell and divides the cavity into a first cavity and a second cavity, the exhaust port is communicated with the first cavity, and the partition plate comprises a through hole; the compression assembly is arranged in the second cavity; the sealing assembly is connected with the compression assembly, the sealing assembly can move between the partition plate and the compression assembly, the sealing assembly comprises a first position, and when the sealing assembly is located at the first position, the sealing assembly seals a gap between the through hole and the compression assembly; and the magnetic attraction assembly is arranged on the partition plate and / or the sealing assembly, the magnetic attraction assembly is used for generating magnetic attraction force between the partition plate and the sealing assembly, and the sealing assembly can stop at the first position through the magnetic attraction force. By arranging the magnetic attraction assembly, the technical problems that in the prior art, when the compressor is shut down, noise is large, and the use experience of a user is poor can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a scroll compressor. Background Art

[0002] In the related art, the scroll compressor suppresses the refrigerant backflow through the exhaust check valve installed at the outlet of the upper cover. The compression component and the upper cover are separated by a partition in the scroll compressor, and the partition and the compression component are sealed by a floating sealing structure.

[0003] However, when the scroll compressor stops, the high-pressure refrigerant on the system side flows back into the compressor due to pressure balance. The high-speed airflow flowing in during the closing process of the upper cover exhaust check valve will produce an abnormal sound similar to "bird singing" in the gap between the partition and the compression component.

[0004] Therefore, scroll compressors have technical problems such as loud shutdown noise and poor user experience. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art.

[0006] Therefore, the utility model proposes a scroll compressor.

[0007] In view of this, the scroll compressor proposed in the utility model includes: a shell, the shell includes a cavity and an exhaust port; a partition, arranged in the shell, the partition divides the cavity into a first cavity and a second cavity, the exhaust port is connected to the first cavity, and the partition includes a through hole; a compression assembly, arranged in the second cavity; a sealing assembly, connected to the compression assembly, the sealing assembly can move between the partition and the compression assembly, the sealing assembly includes a first position, when the sealing assembly is in the first position, the sealing assembly seals the gap between the through hole and the compression assembly; a magnetic attraction assembly, arranged on the partition and / or the sealing assembly, the magnetic attraction assembly is used to generate a magnetic attraction force between the partition and the sealing assembly, and the sealing assembly can stay in the first position by the magnetic attraction force.

[0008] In this technical solution, a scroll compressor is defined, which can compress the refrigerant to a high-pressure state and transport the high-pressure refrigerant to a target device on the system side to achieve high-pressure transportation of the refrigerant.

[0009] The scroll compressor includes a housing, a partition, a compression assembly and a sealing assembly.

[0010] The shell forms the exposed surface of the scroll compressor, and the shell can provide shielding and protection for the internal working structure of the scroll compressor on the outside. A cavity is enclosed in the shell, and a compression assembly, a sealing assembly and a magnetic attraction assembly are arranged in the cavity. Specifically, the shell includes an outer shell, an upper cover and a lower cover. The outer shell is cylindrical, the upper cover covers the opening at the top of the outer shell, and the lower cover covers the opening at the bottom of the outer shell. The outer shell, the upper cover and the lower cover jointly enclose a cavity. An exhaust port connected to the cavity is provided on the upper cover, and the high-pressure refrigerant compressed by the compression assembly is discharged to the target device through the exhaust port. A check valve is provided at the exhaust port. When the refrigerant flows back to the first cavity through the exhaust port, the check valve automatically closes the exhaust port under the pressure of the reflux refrigerant to prevent the refrigerant from continuing to flow back to the first cavity.

[0011] The partition is arranged horizontally inside the shell, and the partition divides the cavity into a first cavity and a second cavity in the height direction of the scroll compressor. The first cavity is connected to the exhaust port, and the second cavity is connected to the air inlet. A through hole connecting the first cavity and the second cavity is provided on the partition. After being compressed by the compression component, the refrigerant in the second cavity is first discharged into the first cavity through the through hole, and then transported to the target device through the exhaust port.

[0012] The compression assembly is arranged in the second cavity, and the compression assembly can compress the refrigerant to a high pressure state and transport the high pressure refrigerant to the first cavity. There is a gap between the compression assembly and the through hole. If the gap is not sealed, part of the high pressure refrigerant will flow back to the second cavity.

[0013] The sealing assembly is installed on the compression assembly, and the sealing assembly can float relative to the compression assembly. During the process of the compression assembly conveying high-pressure refrigerant to the through hole, the sealing assembly can also be pushed to the first position by the high-pressure refrigerant. The sealing assembly in the first position abuts against the partition, and the sealing assembly in the first position can seal the gap between the through hole and the compression assembly to prevent the high-pressure refrigerant in the first cavity from flowing back to the second cavity.

[0014] Among them, the sealing component needs to rely on the high-pressure refrigerant generated during the operation of the compression component to remain in the first position to achieve a floating seal. When the compressor stops, the sealing component that is no longer pushed by the high-pressure refrigerant will fall back under the action of gravity to leave the first position. In addition, at the moment of shutdown, the high-pressure refrigerant on the system side will quickly flow back to the first cavity due to the pressure balance trend. However, the closing of the check valve requires a certain response time, resulting in some high-pressure refrigerant flowing back into the compressor before the check valve closes the air inlet. If this part of the high-pressure refrigerant passes through the gap between the compression component and the through hole, it will produce abnormal noise, increase the noise when the scroll compressor stops, and destroy the user experience.

[0015] In this regard, the present application provides a magnetic attraction component in the scroll compressor, and the magnetic attraction component is arranged on at least one of the partition and the sealing component. After assembly is completed, the magnetic attraction component can generate a magnetic attraction force between the partition and the sealing component. Under the action of the magnetic attraction force, the sealing component is pulled toward the direction where the partition is located. The specific magnetic attraction force can overcome the floating friction force of the sealing component and the gravity of the sealing component, so that the sealing component can be maintained in the first position without the aid of high-pressure refrigerant, so that the sealing component can maintain a sealed state between the through hole and the compression component when the scroll compressor is shut down.

[0016] It can be seen that by setting up a magnetic suction component, the gap between the through hole and the compression component can be continuously sealed by the sealing component maintained in the first position by means of magnetic suction force, so as to prevent the high-pressure refrigerant that flows back instantly when the machine is shut down from quickly passing through the gap, thereby suppressing the refrigerant reflux rate on the system side on the one hand, and improving or eliminating the abnormal noise generated at the gap on the other hand, so as to solve the technical problems of high noise and poor user experience when the compressor is shut down in the related technology. Then the technical effect of optimizing the structure of the scroll compressor, improving the practicality of the scroll compressor, and improving the user experience is achieved.

[0017] In addition, the valve plates and valve seats of some check valves fit poorly. As the pressure difference between the exhaust side and the inside of the compressor gradually decreases, the sealing between the valve plate and the valve seat gradually decreases a few seconds after shutdown. If the refrigerant on the system side flows through the gap again, a high-frequency and harsh "whistling sound" will be generated. In this regard, the magnetic suction component provided in the present application can not only maintain the first position of the sealing component at the moment of shutdown, but also maintain the sealing component in the first position after shutdown, thereby improving or eliminating the high-frequency and harsh "whistling sound", so as to further enhance the practicality of the scroll compressor and enhance the user experience.

[0018] In addition, the scroll compressor provided by the present invention may also have the following additional technical features:

[0019] In some technical solutions of the utility model, optionally, the magnetic attraction component includes: a first gasket, which is arranged on the side of the partition facing the compression component, the first gasket surrounds the through hole, and the sealing component located at the first position is in contact with the first gasket; wherein the first gasket can attract the sealing component.

[0020] In this technical solution, the magnetic attraction component includes a first gasket, which is arranged at the bottom of the partition, and the first gasket is arranged opposite to the sealing component, and the first gasket surrounds the through hole. When the sealing component is in the first position, the sealing component and the gasket are tightly fitted, and the sealing component and the gasket cooperate to seal the gap between the through hole and the compression component to prevent the refrigerant from flowing back to the second cavity through the gap.

[0021] The first gasket has excellent wear resistance. By setting the first gasket, the sealing component can be prevented from directly contacting the partition, thereby reducing the wear rate of the sealing component and the partition, avoiding friction loss from damaging the sealing performance of the sealing component, and thus achieving the technical effect of improving the sealing reliability of the scroll compressor.

[0022] On this basis, the first gasket has magnetism, and the first gasket can generate attraction to the sealing component. Specifically, the first gasket can be prepared by permanent magnetic material, so that the sealing component is attracted by the first gasket. Or the first gasket is treated by a permanent magnetization process, so that the first gasket can attract the sealing component.

[0023] It can be seen that the first gasket has the functions of reducing wear and loss and attracting the sealing assembly, which can improve the sealing reliability of the sealing assembly so that the sealing assembly can remain in the first position when shut down, thereby achieving the technical effect of reducing the compressor shutdown noise and improving the user experience.

[0024] In some technical solutions of the utility model, optionally, the magnetic attraction component includes: a second gasket, which is arranged on the side of the partition facing the compression component, the second gasket surrounds the through hole, and the sealing component located at the first position contacts the second gasket.

[0025] In this technical solution, the magnetic attraction component includes a second gasket, which is arranged at the bottom of the partition, and the second gasket is arranged opposite to the sealing component, and the second gasket surrounds the through hole. When the sealing component is in the first position, the sealing component and the gasket are tightly fitted, and the sealing component and the gasket cooperate to seal the gap between the through hole and the compression component to prevent the refrigerant from flowing back to the second cavity through the gap.

[0026] The second gasket has excellent wear resistance. By setting the second gasket, the sealing assembly can be prevented from directly contacting the partition, thereby reducing the wear rate of the sealing assembly and the partition, and avoiding friction loss from damaging the sealing performance of the sealing assembly, thereby achieving the technical effect of improving the sealing reliability of the scroll compressor.

[0027] The difference between the second washer and the first washer is that the second washer can be made of a non-magnetic material, or the second washer may not be permanently magnetized.

[0028] In some technical solutions of the present invention, optionally, the magnetic attraction component includes: a first magnetic component, which is arranged in the sealing component, the first magnetic component and the second gasket are arranged opposite to each other, and the first magnetic component can attract the second gasket.

[0029] In this technical solution, the magnetic attraction component includes a first magnetic member, which is arranged at the top of the sealing component, and the corresponding second gasket is made of a magnetically sensitive material, such as a metal material. In this case, the first magnetic member can attract the second gasket, which is fixed on the partition, and the sealing component floats upward under the action of the attraction and finally stays in the first position.

[0030] It can be seen that by setting the first magnetic part, the sealing assembly can be kept in the first position without the help of the refrigerant thrust, so as to continue to seal the gap between the through hole and the compression assembly when the compressor is shut down, and prevent the high-pressure refrigerant that flows back instantly when the compressor is shut down from quickly passing through the gap, thereby solving the technical problems of high noise and poor user experience when the compressor is shut down in the related art. Then, the technical effect of optimizing the scroll compressor structure, improving the practicality of the scroll compressor, and improving the user experience is achieved.

[0031] In some technical solutions of the utility model, optionally, the magnetic attraction component includes: a second magnetic component, which is arranged on the second gasket; a third magnetic component, which is arranged on the sealing component, and the third magnetic component and the second magnetic component are arranged opposite to each other, and the second magnetic component and the third magnetic component can attract each other.

[0032] In this technical solution, the magnetic attraction component includes a second magnetic component and a third magnetic component. The second magnetic component is installed at the bottom of the second gasket, and the third magnetic component is installed at the top of the sealing component. After assembly, the second magnetic component and the third magnetic component are relatively arranged.

[0033] On this basis, the magnetic poles of the second magnetic part and the third magnetic part are opposite, and the second magnetic part and the third magnetic part can attract each other, thereby generating a magnetic attraction force on the partition and the sealing component through the second magnetic part and the third magnetic part. Under the action of this magnetic attraction force, the sealing component can remain in the first position without the help of the refrigerant thrust, so as to continue to seal the gap between the through hole and the compression component when shutting down, and prevent the high-pressure refrigerant that flows back instantly during shutdown from quickly passing through the gap, thereby solving the technical problems of high noise and poor user experience when the compressor is shut down in the related technology. This achieves the technical effect of optimizing the structure of the scroll compressor, improving the practicality of the scroll compressor, and improving the user experience.

[0034] Among them, the second magnetic component and the third magnetic component are independent structures. When the magnetism is weakened, the fault can be eliminated by replacing the second magnetic component and the third magnetic component, thereby achieving the technical effect of reducing the difficulty of maintenance of the scroll compressor.

[0035] In some technical solutions of the present invention, optionally, the compression assembly includes a compression chamber and a mounting groove, the compression chamber is communicated with the mounting groove, the mounting groove is opposite to the partition, and the sealing assembly is arranged in the mounting groove.

[0036] In this technical solution, a compression chamber is formed in the compression assembly, and a mounting groove is provided on the side of the compression assembly facing the partition. The compression chamber is connected to the mounting groove. During the operation of the compression assembly, the refrigerant is compressed to a high-pressure state in the compression chamber, and then the high-pressure refrigerant flows to the mounting groove and the through hole.

[0037] The shape of the mounting groove is adapted to the shape of the sealing component, and the sealing component can be embedded in the mounting groove to achieve radial positioning through the mounting groove. In addition, the sealing component can float in the depth direction of the mounting groove. When the compression component is working, the high-pressure refrigerant entering the mounting groove can push the sealing component upward, so that the sealing component can stay in the first position, thereby sealing the gap between the through hole and the compression component through the sealing component, preventing the high-pressure refrigerant in the first cavity from flowing back to the second cavity, thereby achieving the technical effect of improving the sealing reliability of the sealing component, improving the energy efficiency of the scroll compressor, and reducing the failure rate of the scroll compressor.

[0038] In some technical schemes of the utility model, optionally, the sealing assembly includes: a first plate member, disposed in the installation groove, the first plate member includes a limiting column; a second plate member, disposed in the installation groove, the second plate member is located on the side of the first plate member facing the partition, the second plate member includes a limiting hole, and the limiting hole is sleeved on the limiting column.

[0039] In this technical solution, the sealing assembly includes a first plate and a second plate, the first plate and the second plate are stacked in the mounting groove, the first plate is located below the second plate, and the high-pressure refrigerant entering the mounting groove acts on the first plate to drive the first plate and the second plate to float upward. The second plate is located above the first plate, and the second plate is used to seal the gap between the through hole and the compression assembly.

[0040] By setting up a split first plate and a second plate, the first plate and the second plate can be prepared from different materials. Specifically, a material with higher strength is selected to prepare the first plate to avoid dislocation or even deformation of the first plate under the thrust of the high-pressure refrigerant. By selecting a material with strong plasticity to prepare the second plate, it is ensured that the second plate attached to the gasket can seal the gap between the through hole and the compression assembly through deformation, thereby achieving the technical effect of improving the structural stability of the sealing assembly and the sealing effectiveness.

[0041] Specifically, a metal material may be selected to prepare the first plate member, so that the first plate member can be attracted by the magnetized first washer or the second magnetic member installed on the second washer.

[0042] Specifically, a plurality of evenly distributed limiting columns are arranged on the top of the first plate, and a plurality of limiting holes are correspondingly arranged on the second plate. During the assembly process, the plurality of limiting columns are inserted into the plurality of limiting holes one by one to complete the initial positioning of the first plate and the second plate, so as to improve the assembly accuracy of the sealing assembly and reduce the assembly difficulty of the sealing assembly.

[0043] In some technical schemes of the utility model, optionally, the mounting groove includes an outer annular surface and an inner annular surface, and the sealing assembly also includes: a first sealing ring connected to the first plate, the first sealing ring sealing the gap between the first plate and the outer annular surface of the mounting groove; a second sealing ring connected to the second plate, the second sealing ring sealing the gap between the second plate and the inner annular surface of the mounting groove.

[0044] In this technical solution, the mounting groove includes a bottom surface, an outer annular surface and an inner annular surface. The inner annular surface is close to the through hole, and the outer annular surface is farther away from the through hole than the inner annular surface. The sealing assembly is annular and is installed between the outer annular surface and the inner annular surface.

[0045] On this basis, the first plate is sleeved with a first sealing ring on the outer side, and after assembly, the first sealing ring can seal the gap between the first plate and the outer annular surface of the mounting groove to prevent the high-pressure refrigerant in the mounting groove from crossing the sealing component. Similarly, the second plate is penetrated with a second sealing ring on the inner side, and after assembly, the second sealing ring can seal the gap between the second plate and the inner annular surface of the mounting groove to prevent the high-pressure refrigerant in the mounting groove from crossing the sealing component. Thereby, the air tightness between the sealing component and the mounting groove is improved, the thrust of the high-pressure refrigerant on the sealing component is increased, and it is ensured that the sealing component can be maintained in the first position, thereby achieving the technical effect of improving the sealing reliability of the sealing component.

[0046] In some technical schemes of the utility model, optionally, the compression assembly includes: a static plate connected to the shell, a sealing assembly connected to the static plate, the static plate including an air outlet, the air outlet is opposite to the through hole, the sealing assembly located at the first position is used to seal the gap between the air outlet and the through hole; a dynamic plate connected to the static plate, the dynamic plate can move relative to the static plate, a compression chamber is enclosed between the dynamic plate and the static plate, and the compression chamber is connected to the air outlet.

[0047] In this technical solution, the compression assembly includes a static plate and a dynamic plate. The static plate is fixed inside the shell, and the dynamic plate is connected to the static plate, and the dynamic plate can rotate eccentrically relative to the static plate. After assembly, a compression chamber is enclosed between the dynamic plate and the static plate. During the eccentric rotation of the dynamic plate relative to the static plate, the refrigerant is compressed to a high pressure state in the compression chamber.

[0048] The static plate is installed between the dynamic plate and the partition, a mounting groove is arranged on the top of the static plate, a sealing assembly is installed on the static plate, an air outlet is opened on the top of the static plate, the air outlet is connected with the through hole on the partition, and the high-pressure refrigerant in the compression chamber enters the through hole through the air outlet to transport the high-pressure refrigerant to the first cavity.

[0049] Among them, during the working process, the sealing component is maintained in the first position by the thrust of the high-pressure refrigerant to seal the gap between the through hole and the air outlet, preventing the high-pressure refrigerant from flowing back to the second cavity, thereby improving the energy efficiency of the compressor. When the compressor is shut down, the sealing component is maintained in the first position by the magnetic attraction provided by the magnetic attraction component to seal the gap between the through hole and the air outlet, preventing the refrigerant flowing back from the system side from generating abnormal noise due to rapid passage through the gap, thereby reducing the noise of the compressor when it is shut down.

[0050] Specifically, the scroll compressor includes a main frame assembly, and a stator plate is fixed to the main frame assembly.

[0051] In some technical solutions of the present invention, optionally, the scroll compressor further includes: a driving assembly disposed in the second cavity; and a transmission assembly connecting the driving assembly and the moving plate.

[0052] In this technical solution, the scroll compressor also includes a drive assembly and a transmission assembly, which are arranged in the second cavity. The transmission assembly connects the moving plate and the drive assembly. The drive assembly can convert electrical energy into mechanical energy, and the drive assembly can drive the moving plate to rotate eccentrically through the transmission assembly.

[0053] Specifically, the transmission assembly includes a crankshaft, and the crankshaft drives the moving plate to rotate eccentrically.

[0054] Specifically, the scroll compressor further includes a sub-frame assembly, the sub-frame assembly is connected to the shell, and the drive assembly and the transmission assembly are mounted on the sub-frame assembly.

[0055] Additional aspects and advantages of the present invention will become apparent in the following description or will be understood through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0057] Figure 1 A schematic structural diagram of a scroll compressor according to an embodiment of the utility model is shown;

[0058] Figure 2 for Figure 1 A partial enlarged view of the scroll compressor in the illustrated embodiment at area A;

[0059] Figure 3 A schematic structural diagram of a scroll compressor according to an embodiment of the utility model is shown;

[0060] Figure 4 A schematic structural diagram of a scroll compressor according to an embodiment of the utility model is shown;

[0061] Figure 5 A schematic structural diagram of a scroll compressor according to an embodiment of the utility model is shown;

[0062] Figure 6 A schematic structural diagram of a scroll compressor according to an embodiment of the utility model is shown;

[0063] Figure 7 A schematic structural diagram of a scroll compressor according to an embodiment of the utility model is shown;

[0064] Figure 8 A force diagram of a sealing assembly according to an embodiment of the utility model is shown.

[0065] in, Figures 1 to 8 The corresponding relationship between the reference numerals and component names in the figure is:

[0066] 100 scroll compressor, 110 shell, 112 cavity, 1122 first cavity, 1124 second cavity, 114 exhaust port, 120 partition, 122 through hole, 130 compression assembly, 132 compression chamber, 134 mounting groove, 1342 inner annular surface, 1344 outer annular surface, 136 static plate, 1362 air outlet, 138 moving plate, 140 sealing assembly, 142 first plate, 1422 limiting column, 144 second plate, 1442 limiting hole, 146 first sealing ring, 148 second sealing ring, 150 magnetic attraction assembly, 152 first gasket, 154 second gasket, 156 first magnetic member, 158 second magnetic member, 159 third magnetic member, 160 driving assembly, 170 transmission assembly, 180 main frame assembly, 182 sub-frame assembly. DETAILED DESCRIPTION

[0067] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0068] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0069] Refer to the following Figures 1 to 8 A scroll compressor according to some embodiments of the present invention is described.

[0070] like Figure 1 and Figure 2As shown, one embodiment of the utility model provides a scroll compressor 100, which includes: a housing 110, the housing 110 includes a cavity 112 and an exhaust port 114; a partition 120, which is arranged in the housing 110, the partition 120 divides the cavity 112 into a first cavity 1122 and a second cavity 1124, the exhaust port 114 is connected to the first cavity 1122, and the partition 120 includes a through hole 122; a compression assembly 130, which is arranged in the second cavity 1124; a sealing assembly 140, which is connected to the compression assembly 130. The sealing assembly 140 is connected to the partition 120 and the compression assembly 130, and the sealing assembly 140 can move between the partition 120 and the compression assembly 130. The sealing assembly 140 includes a first position. When the sealing assembly 140 is in the first position, the sealing assembly 140 seals the gap between the through hole 122 and the compression assembly 130; the magnetic attraction assembly 150 is arranged on the partition 120 and / or the sealing assembly 140. The magnetic attraction assembly 150 is used to generate a magnetic attraction force between the partition 120 and the sealing assembly 140, and the sealing assembly 140 can be stationary at the first position by the magnetic attraction force.

[0071] In this embodiment, a scroll compressor 100 is defined, which can compress the refrigerant to a high-pressure state and transport the high-pressure refrigerant to a target device on the system side to achieve high-pressure transportation of the refrigerant.

[0072] The scroll compressor 100 includes a housing 110 , a partition plate 120 , a compression assembly 130 , and a sealing assembly 140 .

[0073] The shell 110 forms the exposed surface of the scroll compressor 100, and the shell 110 can provide shielding and protection for the internal working structure of the scroll compressor 100 on the outside. Among them, a cavity 112 is enclosed in the shell 110, and the compression assembly 130, the sealing assembly 140 and the magnetic attraction assembly 150 are arranged in the cavity 112. Specifically, the shell 110 includes an outer shell, an upper cover and a lower cover. The outer shell is cylindrical, the upper cover covers the opening at the top of the outer shell, and the lower cover covers the opening at the bottom of the outer shell. The outer shell, the upper cover and the lower cover together enclose the cavity 112. An exhaust port 114 connected to the cavity 112 is opened on the upper cover, and the high-pressure refrigerant compressed by the compression assembly 130 is discharged to the target device through the exhaust port 114. A check valve is provided at the exhaust port 114 . When the refrigerant flows back to the first cavity 1122 through the exhaust port 114 , the check valve automatically closes the exhaust port 114 under the pressure of the returning refrigerant to prevent the refrigerant from continuing to flow back to the first cavity 1122 .

[0074] The partition 120 is horizontally arranged inside the shell 110. In the height direction of the scroll compressor 100, the partition 120 divides the cavity 112 into a first cavity 1122 and a second cavity 1124. The first cavity 1122 is connected to the exhaust port 114, and the second cavity 1124 is connected to the air inlet. The partition 120 is provided with a through hole 122 connecting the first cavity 1122 and the second cavity 1124. After being compressed by the compression assembly 130, the refrigerant in the second cavity 1124 is first discharged into the first cavity 1122 through the through hole 122, and then transported to the target device through the exhaust port 114.

[0075] The compression assembly 130 is disposed in the second cavity 1124, and can compress the refrigerant to a high pressure state and deliver the high pressure refrigerant to the first cavity 1122. There is a gap between the compression assembly 130 and the through hole 122, and if the gap is not sealed, part of the high pressure refrigerant will flow back to the second cavity 1124.

[0076] The sealing assembly 140 is installed on the compression assembly 130, and the sealing assembly 140 can float relative to the compression assembly 130. In the process of the compression assembly 130 conveying high-pressure refrigerant to the through hole 122, the sealing assembly 140 can also be pushed to the first position by the high-pressure refrigerant. The sealing assembly 140 in the first position is abutted against the partition 120, and the sealing assembly 140 in the first position can seal the gap between the through hole 122 and the compression assembly 130 to prevent the high-pressure refrigerant in the first cavity 1122 from flowing back to the second cavity 1124.

[0077] Among them, the sealing component 140 needs to rely on the high-pressure refrigerant generated during the operation of the compression component 130 to remain in the first position to achieve a floating seal. When the compressor stops, the sealing component 140, which is no longer pushed by the high-pressure refrigerant, will fall back under the action of gravity to break away from the first position. In addition, at the moment of shutdown, the high-pressure refrigerant on the system side will quickly flow back to the first cavity 1122 due to the pressure balance trend. However, the closing of the check valve requires a certain response time, resulting in part of the high-pressure refrigerant flowing back to the inside of the compressor before the check valve closes the air inlet. If this part of the high-pressure refrigerant passes through the gap between the compression component 130 and the through hole 122, it will produce abnormal noise, increase the noise when the scroll compressor 100 stops, and destroy the user's experience.

[0078] In this regard, the present application provides a magnetic attraction component 150 in the scroll compressor 100, and the magnetic attraction component 150 is provided on at least one of the partition 120 and the sealing component 140. After assembly is completed, the magnetic attraction component 150 can generate a magnetic attraction force between the partition 120 and the sealing component 140. Under the action of the magnetic attraction force, the sealing component 140 is pulled toward the direction of the partition 120. The specific magnetic attraction force can overcome the floating friction force of the sealing component 140 and the gravity of the sealing component 140, so that the sealing component 140 can be maintained in the first position without the aid of high-pressure refrigerant, so that the sealing component 140 can maintain a sealed state between the through hole 122 and the compression component 130 when the scroll compressor 100 is shut down.

[0079] It can be seen that by setting the magnetic suction component 150, the gap between the through hole 122 and the compression component 130 can be continuously sealed by the sealing component 140 maintained in the first position by means of magnetic suction force, so as to prevent the high-pressure refrigerant that returns instantly when shutting down from quickly passing through the gap, thereby suppressing the refrigerant return rate on the system side on the one hand, and improving or eliminating the abnormal noise generated at the gap on the other hand, so as to solve the technical problems of high noise and poor user experience when the compressor is shut down in the related art. Then the technical effect of optimizing the structure of the scroll compressor 100, improving the practicality of the scroll compressor 100, and improving the user experience is achieved.

[0080] In addition, the valve plates and valve seats of some check valves fit poorly. As the pressure difference between the exhaust side and the inside of the compressor gradually decreases, the sealing between the valve plate and the valve seat gradually decreases after a few seconds of shutdown. If the refrigerant on the system side flows through the gap again, a high-frequency and harsh "whistling sound" will be generated. In this regard, the magnetic suction component 150 provided in the present application can not only maintain the first position of the sealing component 140 at the moment of shutdown, but also maintain the sealing component 140 in the first position after shutdown, thereby improving or eliminating the high-frequency and harsh "whistling sound", so as to further enhance the practicality of the scroll compressor 100 and enhance the user experience.

[0081] like Figure 8 As shown, the sealing assembly 140 is subjected to five forces, namely, friction force f, magnetic attraction force Fc1, pressure Fc2 of the second cavity 1124, pressure Fn of the first cavity 1122 and gravity G, wherein Fc1+Fc2≥Gf, to ensure that the sealing assembly 140 can be kept in the first position under the action of the magnetic attraction force.

[0082] like Figure 3 As shown, in some embodiments of the present invention, optionally, the magnetic attraction component 150 includes: a first gasket 152, which is arranged on the side of the partition 120 facing the compression component 130, the first gasket 152 surrounds the through hole 122, and the sealing component 140 located at the first position is in contact with the first gasket 152; wherein, the first gasket 152 can attract the sealing component 140.

[0083] In this embodiment, the magnetic attraction assembly 150 includes a first gasket 152, which is disposed at the bottom of the partition 120, and the first gasket 152 is disposed opposite to the sealing assembly 140, and the first gasket 152 surrounds the through hole 122. When the sealing assembly 140 is in the first position, the sealing assembly 140 fits tightly with the gasket, and the sealing assembly 140 and the gasket cooperate to seal the gap between the through hole 122 and the compression assembly 130 to prevent the refrigerant from flowing back to the second cavity 1124 through the gap.

[0084] The first gasket 152 has excellent wear resistance. By setting the first gasket 152, the sealing assembly 140 can be prevented from directly contacting the partition 120, thereby reducing the wear rate of the sealing assembly 140 and the partition 120, and avoiding friction loss from damaging the sealing performance of the sealing assembly 140, thereby achieving the technical effect of improving the sealing reliability of the scroll compressor 100.

[0085] On this basis, the first gasket 152 has magnetism, and the first gasket 152 can generate attraction to the sealing component 140. Specifically, the first gasket 152 can be prepared by permanent magnetic material, so that the sealing component 140 is attracted by the first gasket 152. Or the first gasket 152 can be treated by a permanent magnetization process so that the first gasket 152 can attract the sealing component 140.

[0086] It can be seen that the first gasket 152 has the functions of reducing wear and loss and attracting the sealing assembly 140, which can improve the sealing reliability of the sealing assembly 140 so that the sealing assembly 140 can remain in the first position when shut down, thereby achieving the technical effect of reducing the compressor shutdown noise and improving the user experience.

[0087] like Figure 4 and Figure 5 As shown, in some embodiments of the present invention, optionally, the magnetic attraction assembly 150 includes: a second gasket 154, which is arranged on the side of the partition 120 facing the compression assembly 130, and the second gasket 154 surrounds the through hole 122, and the sealing assembly 140 located at the first position is in contact with the second gasket 154.

[0088] In this embodiment, the magnetic attraction assembly 150 includes a second gasket 154, which is disposed at the bottom of the partition 120, and the second gasket 154 is disposed opposite to the sealing assembly 140, and the second gasket 154 surrounds the through hole 122. When the sealing assembly 140 is in the first position, the sealing assembly 140 fits tightly with the gasket, and the sealing assembly 140 and the gasket cooperate to seal the gap between the through hole 122 and the compression assembly 130 to prevent the refrigerant from flowing back to the second cavity 1124 through the gap.

[0089] The second gasket 154 has excellent wear resistance. By setting the second gasket 154, the sealing assembly 140 can be prevented from directly contacting the partition 120, thereby reducing the wear rate of the sealing assembly 140 and the partition 120, and avoiding friction loss from damaging the sealing performance of the sealing assembly 140, thereby achieving the technical effect of improving the sealing reliability of the scroll compressor 100.

[0090] The difference between the second washer 154 and the first washer 152 is that the second washer 154 can be made of a non-magnetic material, or the second washer 154 can be made without permanent magnetization.

[0091] like Figure 4 As shown, in some embodiments of the present invention, optionally, the magnetic attraction component 150 includes: a first magnetic member 156 , which is disposed in the sealing component 140 , and the first magnetic member 156 is disposed opposite to the second gasket 154 , and the first magnetic member 156 can attract the second gasket 154 .

[0092] In this embodiment, the magnetic attraction assembly 150 includes a first magnetic member 156, which is disposed at the top of the sealing assembly 140. Correspondingly, the second gasket 154 is made of a magnetically sensitive material, such as a metal material. In this case, the first magnetic member 156 can attract the second gasket 154, which is fixed on the partition 120. Under the action of the attraction, the sealing assembly 140 floats upward and finally stays at the first position.

[0093] It can be seen that by setting the first magnetic member 156, the sealing assembly 140 can be kept in the first position without the help of the refrigerant thrust, so as to continue to seal the gap between the through hole 122 and the compression assembly 130 when the machine is shut down, and prevent the high-pressure refrigerant that flows back instantly when the machine is shut down from quickly passing through the gap, thereby solving the technical problems of high noise and poor user experience when the compressor is shut down in the related art. Then, the technical effect of optimizing the structure of the scroll compressor 100, improving the practicality of the scroll compressor 100, and improving the user experience is achieved.

[0094] like Figure 1 and Figure 2 As shown, in some embodiments of the present invention, optionally, the magnetic attraction component 150 includes: a second magnetic component 158, which is arranged on the second gasket 154; a third magnetic component 159, which is arranged on the sealing component 140, and the third magnetic component 159 and the second magnetic component 158 ​​are arranged opposite to each other, and the second magnetic component 158 ​​and the third magnetic component 159 can attract each other.

[0095] In this embodiment, the magnetic attraction assembly 150 includes a second magnetic component 158 ​​and a third magnetic component 159. The second magnetic component 158 ​​is installed at the bottom of the second gasket 154, and the third magnetic component 159 is installed at the top of the sealing assembly 140. After assembly, the second magnetic component 158 ​​and the third magnetic component 159 are arranged relative to each other.

[0096] On this basis, the magnetic poles of the second magnetic member 158 and the third magnetic member 159 are opposite, and the second magnetic member 158 and the third magnetic member 159 can attract each other, thereby generating a magnetic attraction force on the partition 120 and the sealing assembly 140 through the second magnetic member 158 and the third magnetic member 159. Under the action of this magnetic attraction force, the sealing assembly 140 can remain in the first position without the help of the refrigerant thrust, so as to continue to seal the gap between the through hole 122 and the compression assembly 130 when shutting down, and prevent the high-pressure refrigerant that flows back instantly when shutting down from quickly passing through the gap, thereby solving the technical problems of high noise and poor user experience when the compressor is shut down in the related art. Then, the technical effect of optimizing the structure of the scroll compressor 100, improving the practicality of the scroll compressor 100, and improving the user experience is achieved.

[0097] Among them, the second magnetic component 158 ​​and the third magnetic component 159 are independent structures. When the magnetism is weakened, the fault can be eliminated by replacing the second magnetic component 158 ​​and the third magnetic component 159, thereby achieving the technical effect of reducing the difficulty of maintenance of the scroll compressor 100.

[0098] like Figure 2 , Figure 3 and Figure 4 As shown, in some embodiments of the present invention, optionally, the compression assembly 130 includes a compression chamber 132 and a mounting groove 134 , the compression chamber 132 is connected to the mounting groove 134 , the mounting groove 134 is opposite to the partition 120 , and the sealing assembly 140 is disposed in the mounting groove 134 .

[0099] In this embodiment, a compression chamber 132 is formed in the compression assembly 130, and a mounting groove 134 is provided on the side of the compression assembly 130 facing the partition 120. The compression chamber 132 is connected to the mounting groove 134. During the operation of the compression assembly 130, the refrigerant is compressed to a high-pressure state in the compression chamber 132, and then the high-pressure refrigerant flows to the mounting groove 134 and the through hole 122.

[0100] The shape of the mounting groove 134 is adapted to the shape of the sealing assembly 140, and the sealing assembly 140 can be embedded in the mounting groove 134 to achieve radial positioning through the mounting groove 134. In addition, the sealing assembly 140 can float in the depth direction of the mounting groove 134. When the compression assembly 130 is working, the high-pressure refrigerant entering the mounting groove 134 can push the sealing assembly 140 upward, so that the sealing assembly 140 can stay in the first position, thereby sealing the gap between the through hole 122 and the compression assembly 130 through the sealing assembly 140, preventing the high-pressure refrigerant in the first cavity 1122 from flowing back to the second cavity 1124, thereby achieving the technical effect of improving the sealing reliability of the sealing assembly 140, improving the energy efficiency of the scroll compressor 100, and reducing the failure rate of the scroll compressor 100.

[0101] like Figure 6 and Figure 7 As shown, in some embodiments of the utility model, optionally, the sealing assembly 140 includes: a first plate member 142, which is disposed in the mounting groove 134, and the first plate member 142 includes a limiting column 1422; a second plate member 144, which is disposed in the mounting groove 134, and the second plate member 144 is located on the side of the first plate member 142 facing the partition 120, and the second plate member 144 includes a limiting hole 1442, and the limiting hole 1442 is sleeved on the limiting column 1422, and the first magnetic member 156 or the third magnetic member 159 is disposed on the second plate member 144.

[0102] In this embodiment, the sealing assembly 140 includes a first plate 142 and a second plate 144, which are stacked in the mounting groove 134, and the first plate 142 is located below the second plate 144. The high-pressure refrigerant entering the mounting groove 134 acts on the first plate 142 to drive the first plate 142 and the second plate 144 to float upward. The second plate 144 is located above the first plate 142, and the second plate 144 is used to seal the gap between the through hole 122 and the compression assembly 130.

[0103] By setting up a split first plate 142 and second plate 144, the first plate 142 and the second plate 144 can be prepared from different materials. Specifically, a material with higher strength is selected to prepare the first plate 142 to avoid the first plate 142 from being displaced or even deformed under the thrust of the high-pressure refrigerant. By selecting a material with strong plasticity to prepare the second plate 144, it is ensured that the second plate 144 attached to the gasket can block the gap between the through hole 122 and the compression assembly 130 through deformation, thereby achieving the technical effect of improving the structural stability and sealing effectiveness of the sealing assembly 140.

[0104] Specifically, a metal material may be selected to prepare the first plate 142 , so that the first plate 142 can be attracted by the magnetized first washer 152 or the second magnetic member 158 installed on the second washer 154 .

[0105] Specifically, a plurality of evenly distributed limiting columns 1422 are provided on the top of the first plate 142, and a plurality of limiting holes 1442 are correspondingly provided on the second plate 144. During the assembly process, the plurality of limiting columns 1422 are inserted one by one into the plurality of limiting holes 1442 to complete the initial positioning of the first plate 142 and the second plate 144, so as to improve the assembly accuracy of the sealing assembly 140 and reduce the assembly difficulty of the sealing assembly 140.

[0106] like Figure 2 , Figure 6 and Figure 7 As shown, in some embodiments of the present invention, optionally, the mounting groove 134 includes an outer annular surface 1344 and an inner annular surface 1342, and the sealing assembly 140 also includes: a first sealing ring 146, connected to the first plate 142, the first sealing ring 146 seals the gap between the first plate 142 and the outer annular surface 1344 of the mounting groove 134; a second sealing ring 148, connected to the second plate 144, the second sealing ring 148 seals the gap between the second plate 144 and the inner annular surface 1342 of the mounting groove 134.

[0107] In this embodiment, the mounting groove 134 includes a bottom surface, an outer annular surface 1344 and an inner annular surface 1342, the inner annular surface 1342 is close to the through hole 122, the outer annular surface 1344 is away from the through hole 122 relative to the inner annular surface 1342, the sealing assembly 140 is annular, and the sealing assembly 140 is installed between the outer annular surface 1344 and the inner annular surface 1342.

[0108] On this basis, the first plate 142 is sleeved with a first sealing ring 146 on its outer side. After assembly, the first sealing ring 146 can seal the gap between the first plate 142 and the outer annular surface 1344 of the mounting groove 134 to prevent the high-pressure refrigerant in the mounting groove 134 from crossing the sealing assembly 140. Similarly, the second plate 144 is penetrated with a second sealing ring 148 on its inner side. After assembly, the second sealing ring 148 can seal the gap between the second plate 144 and the inner annular surface 1342 of the mounting groove 134 to prevent the high-pressure refrigerant in the mounting groove 134 from crossing the sealing assembly 140. Thus, the air tightness between the sealing assembly 140 and the mounting groove 134 is improved, the thrust of the high-pressure refrigerant on the sealing assembly 140 is increased, and it is ensured that the sealing assembly 140 can be kept in the first position, thereby achieving the technical effect of improving the sealing reliability of the sealing assembly 140.

[0109] like Figure 1As shown, in some embodiments of the present invention, optionally, the compression assembly 130 includes: a static plate 136, connected to the housing 110, a sealing assembly 140 connected to the static plate 136, the static plate 136 includes an air outlet 1362, the air outlet 1362 is opposite to the through hole 122, and the sealing assembly 140 located at the first position is used to seal the gap between the air outlet 1362 and the through hole 122; a dynamic plate 138, connected to the static plate 136, the dynamic plate 138 can move relative to the static plate 136, and a compression chamber 132 is enclosed between the dynamic plate 138 and the static plate 136, and the compression chamber 132 is connected to the air outlet 1362.

[0110] In this embodiment, the compression assembly 130 includes a static plate 136 and a dynamic plate 138. The static plate 136 is fixed inside the housing 110. The dynamic plate 138 is connected to the static plate 136, and the dynamic plate 138 can rotate eccentrically relative to the static plate 136. After assembly, a compression chamber 132 is enclosed between the dynamic plate 138 and the static plate 136. During the eccentric rotation of the dynamic plate 138 relative to the static plate 136, the refrigerant is compressed to a high pressure state in the compression chamber 132.

[0111] The static plate 136 is installed between the dynamic plate 138 and the partition 120. The mounting groove 134 is set on the top of the static plate 136. The sealing assembly 140 is installed on the static plate 136. The top of the static plate 136 is opened with an air outlet hole 1362. The air outlet hole 1362 is connected with the through hole 122 on the partition 120. The high-pressure refrigerant in the compression chamber 132 enters the through hole 122 through the air outlet hole 1362 to transport the high-pressure refrigerant to the first cavity 1122.

[0112] Among them, during the working process, the sealing component 140 is maintained in the first position by the thrust of the high-pressure refrigerant to seal the gap between the through hole 122 and the air outlet 1362, and prevent the high-pressure refrigerant from flowing back to the second cavity 1124, thereby improving the energy efficiency of the compressor. When the compressor is shut down, the sealing component 140 is maintained in the first position by the magnetic attraction provided by the magnetic attraction component 150 to seal the gap between the through hole 122 and the air outlet 1362, and prevent the refrigerant flowing back from the system side from generating abnormal noise due to rapid passage through the gap, thereby reducing the noise of the compressor when it is shut down.

[0113] Specifically, the scroll compressor 100 includes a main frame assembly 180 to which the stator plate 136 is fixed.

[0114] like Figure 1 and Figure 2 As shown, in some embodiments of the present invention, optionally, the scroll compressor 100 further includes: a driving assembly 160 disposed in the second cavity 1124 ; and a transmission assembly 170 connecting the driving assembly 160 and the moving plate 138 .

[0115] In this embodiment, the scroll compressor 100 also includes a drive assembly 160 and a transmission assembly 170, which are arranged in the second cavity 1124. The transmission assembly 170 connects the moving plate 138 and the drive assembly 160. The drive assembly 160 can convert electrical energy into mechanical energy, and the drive assembly 160 can drive the moving plate 138 to rotate eccentrically through the transmission assembly 170.

[0116] Specifically, the transmission assembly 170 includes a crankshaft, which drives the moving plate 138 to rotate eccentrically.

[0117] Specifically, the scroll compressor 100 further includes a sub-frame assembly 182 , which is connected to the housing 110 , and the driving assembly 160 and the transmission assembly 170 are mounted on the sub-frame assembly 182 .

[0118] It should be clarified that in the claims, specification and drawings of the present invention, the term "multiple" refers to two or more than two. Unless otherwise clearly defined, the orientation or position relationship indicated by the terms "upper" and "lower" is based on the orientation or position relationship shown in the drawings, which is only for the purpose of more conveniently describing the present invention and making the description process easier, rather than indicating or implying that the device or element referred to must have the specific orientation described, be constructed and operated in a specific orientation, so these descriptions cannot be understood as limitations on the present invention; the terms "connect", "install", "fix" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection between multiple objects, or a detachable connection between multiple objects, or an integral connection; it can be a direct connection between multiple objects, or an indirect connection between multiple objects through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood based on the specific circumstances of the above data.

[0119] In the claims, specification and drawings of the present invention, the description of the terms "one embodiment", "some embodiments", "specific embodiments" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In the claims, specification and drawings of the present invention, 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 may be combined in any one or more embodiments or examples in a suitable manner.

[0120] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A scroll compressor, characterized in that: include: A housing, the housing comprising a cavity and an exhaust port; a partition, disposed in the shell, the partition dividing the cavity into a first cavity and a second cavity, the exhaust port being communicated with the first cavity, and the partition comprising a through hole; A compression assembly, disposed in the second cavity; A sealing assembly connected to the compression assembly, the sealing assembly being able to move between the partition and the compression assembly, the sealing assembly comprising a first position, and when the sealing assembly is in the first position, the sealing assembly seals the gap between the through hole and the compression assembly; A magnetic attraction component is provided on the partition and / or the sealing component, and is used to generate a magnetic attraction force between the partition and the sealing component, so that the sealing component can be stationary at the first position by the magnetic attraction force.

2. The scroll compressor according to claim 1, characterized in that: The magnetic attraction component comprises: A first gasket is provided on a side of the partition plate facing the compression assembly, the first gasket surrounds the through hole, and the sealing assembly located at the first position contacts the first gasket; Wherein, the first gasket is capable of attracting the sealing assembly.

3. The scroll compressor according to claim 1, characterized in that: The magnetic components include: A second gasket is arranged on a side of the partition facing the compression assembly. The second gasket surrounds the through hole. The sealing assembly located at the first position contacts the second gasket.

4. The scroll compressor according to claim 3, characterized in that: The magnetic attraction component comprises: The first magnetic component is arranged in the sealing assembly. The first magnetic component is arranged opposite to the second gasket. The first magnetic component can attract the second gasket.

5. The scroll compressor according to claim 3, characterized in that: The magnetic attraction component comprises: A second magnetic member, disposed on the second washer; The third magnetic component is arranged in the sealing component. The third magnetic component and the second magnetic component are arranged opposite to each other. The second magnetic component and the third magnetic component can attract each other.

6. The scroll compressor according to claim 4 or 5, characterized in that: The compression assembly comprises a compression chamber and a mounting groove, wherein the compression chamber is communicated with the mounting groove, the mounting groove is opposite to the partition plate, and the sealing assembly is arranged in the mounting groove.

7. The scroll compressor according to claim 6, characterized in that: The sealing assembly comprises: A first plate member is disposed in the installation groove, wherein the first plate member includes a limiting column; The second plate is arranged in the installation groove, the second plate is located on the side of the first plate facing the partition, and the second plate includes a limiting hole, and the limiting hole is sleeved on the limiting column.

8. The scroll compressor according to claim 7, characterized in that: The mounting groove includes an inner annular surface and an outer annular surface, and the sealing assembly further includes: a first sealing ring connected to the first plate, the first sealing ring sealing the first plate and the outer annular surface of the mounting groove; A second sealing ring is connected to the second plate, and the second sealing ring seals the second plate and the inner annular surface of the mounting groove.

9. The scroll compressor according to any one of claims 1 to 5, characterized in that: The compression component comprises: a static plate connected to the housing, the sealing assembly connected to the static plate, the static plate comprising an air outlet, the air outlet being opposite to the through hole, the sealing assembly located at the first position being used for sealing a gap between the air outlet and the through hole; The moving disk is connected to the static disk, and the moving disk can move relative to the static disk. A compression chamber is enclosed between the moving disk and the static disk, and the compression chamber is communicated with the air outlet.

10. The scroll compressor according to claim 9, characterized in that: Also includes: A driving assembly, disposed in the second cavity; A transmission assembly connects the driving assembly and the moving plate.

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