Compressor and refrigeration system

Abstract

The application discloses a compressor and a refrigeration system. The compressor comprises a shell, a pump body assembly and a frame. The shell has a containing cavity; the pump body assembly is arranged in the containing cavity, and the pump body assembly comprises a cylinder and a bearing component connected to the cylinder; the cylinder and / or the bearing component are fixedly connected to the shell through the frame; the bearing component comprises a first bearing and a second bearing, the cylinder comprises a powder metallurgy cylinder, the first bearing comprises a first powder metallurgy bearing, and / or the second bearing comprises a second powder metallurgy bearing. The application can solve the problems that welding causes thermal deformation of the pump body assembly and that the powder metallurgy pump body assembly cannot be directly fixed on the shell through welding.

Description

Technical Field

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

[0002] As a core component of heat exchange equipment such as air conditioners and refrigerators, compressors are mainly divided into reciprocating compressors, rotary compressors, and scroll compressors. Among them, rotary compressors mainly consist of a housing, pump assembly, and motor. Rotary compressors rely on an eccentrically mounted cylindrical rotor rolling within a cylinder to change the working volume of the cylinder, thereby realizing the intake, compression, and exhaust processes.

[0003] Currently, in rotary compressors, the pump body assembly is directly fixed to the housing by welding, which easily leads to thermal deformation of the pump body assembly due to welding. Furthermore, the pump body assembly is made of powder metallurgy, and the powder metallurgy parts cannot be directly welded to the main housing due to poor welding techniques. Utility Model Content

[0004] The main objective of this application is to provide a compressor and refrigeration system to solve the problems in the prior art where welding causes thermal deformation of the pump body assembly, and powder metallurgy pump body assemblies cannot be directly fixed to the housing by welding.

[0005] According to one aspect of this application, a compressor is provided, comprising: A housing having a receiving cavity; A pump body assembly disposed in the receiving cavity, the pump body assembly including a cylinder and a bearing component connected to the cylinder; The frame, through which the cylinder and / or the bearing component are fixedly connected to the housing; The bearing component includes a first bearing and a second bearing, the cylinder includes a powder metallurgy cylinder, and / or the first bearing includes a first powder metallurgy bearing and / or the second bearing includes a second powder metallurgy bearing.

[0006] Furthermore, the frame is fixedly connected to the bearing component, and the frame, the first bearing, the cylinder, and the second bearing are arranged sequentially along the height direction of the housing; The frame is provided with multiple first connecting holes, the first bearing is provided with multiple second connecting holes, the cylinder is provided with multiple third connecting holes, and the second bearing is provided with multiple fourth connecting holes. The multiple first connecting holes, multiple second connecting holes, multiple third connecting holes, and multiple fourth connecting holes are provided in a one-to-one correspondence. The first connecting holes, the second connecting holes, and the third connecting holes are locked together by a first locking member, and the third connecting holes and the fourth connecting holes are locked together by a second locking member.

[0007] Further, the first bearing includes the first powder metallurgy bearing and the cylinder includes the powder metallurgy cylinder; or, The second bearing includes the second powder metallurgy bearing and the cylinder includes the powder metallurgy cylinder.

[0008] Furthermore, the type and / or ratio of metal powder in the powder metallurgy cylinder differs from that in the first powder metallurgy bearing or the second powder metallurgy bearing.

[0009] Further, the first bearing includes the first powder metallurgy bearing and the second bearing includes the second powder metallurgy bearing; or, The first bearing includes the first powder metallurgy bearing, the second bearing includes the second powder metallurgy bearing, and the cylinder includes the powder metallurgy cylinder.

[0010] Furthermore, the first powder metallurgy bearing and the second powder metallurgy bearing have the same type and proportion of metal powder; and / or, The powder metallurgy cylinder has a different type of metal powder and / or a different ratio of metal powder than the first powder metallurgy bearing or the second powder metallurgy bearing.

[0011] Furthermore, the housing includes a sheet metal housing, and the frame includes a sheet metal frame.

[0012] Furthermore, the compressor also includes a silencing component, which is disposed on the side of the frame away from the pump body assembly and integrally formed with the frame.

[0013] Furthermore, along the height direction of the housing, the thickness T of the frame satisfies the relationship: 2.8mm ≤ T ≤ 4.5mm; and / or, Along the width direction of the housing, the inner diameter D of the housing satisfies the following relationship: 89mm≤D≤120mm.

[0014] Furthermore, the compressor includes a single-cylinder compressor or a dual-cylinder compressor.

[0015] On the other hand, this application also provides a refrigeration system, which includes the compressor described above.

[0016] This application uses the frame as an intermediate connection structure between the pump body assembly and the housing, allowing the cylinder and / or bearing components to be connected to the frame first, and then the frame to be fixed to the housing. This forms an indirect connection installation mode, which not only eliminates the problem of thermal deformation of the pump body assembly caused by high-temperature welding and ensures the dimensional accuracy and fit clearance of key components such as the cylinder, but also solves the problem that powder metallurgy pump body assemblies cannot be directly fixed to the housing by welding. This significantly improves the overall performance and reliability of the compressor, allowing the pump body assembly to function more stably and efficiently within the housing cavity. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a cross-sectional view of the compressor disclosed in an embodiment of this application; Figure 2 This is a top view of the rack disclosed in the embodiments of this application; Figure 3 This is a cross-sectional view of the rack disclosed in an embodiment of this application.

[0018] The above figures include the following reference numerals: 10. Housing; 101. Receptacle; 20. Pump body assembly; 21. Cylinder; 22. Bearing assembly; 221. First bearing; 222. Second bearing; 23. Crankshaft; 30. Frame; 31. First connecting hole; 32. Flow hole; 40. First locking element; 50. Second locking element; 60. Silencing element; 70. Motor. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0021] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0022] As mentioned in the background section, in existing rotary compressors, the pump body assembly is directly fixed to the housing by welding, which is prone to poor welding and can lead to thermal deformation of the pump body assembly. To address this, the inventors of this application have designed a new compressor that can at least solve the problems of thermal deformation of the pump body assembly caused by welding in the prior art, and the inability to directly fix the powder metallurgy pump body assembly to the housing by welding. The compressor of this application will be described in detail below with reference to the accompanying drawings.

[0023] See Figures 1 to 3 As shown, according to an embodiment of this application, a compressor is provided, which includes a housing 10, a pump assembly 20, and a frame 30.

[0024] The housing 10 has a receiving cavity 101; the pump body assembly 20 is disposed in the receiving cavity 101, and the pump body assembly 20 includes a cylinder 21 and a bearing component 22 connected to the cylinder 21; the cylinder 21 and / or the bearing component 22 are fixedly connected to the housing 10 via a frame 30; wherein the bearing component 22 includes a first bearing 221 and a second bearing 222, the cylinder 21 includes a powder metallurgy cylinder and / or the first bearing 221 includes a first powder metallurgy bearing and / or the second bearing 222 includes a second powder metallurgy bearing. That is to say, in this application, the cylinder 21 can be fixedly connected to the housing 10 via the frame 30, the bearing component 22 can be fixedly connected to the housing 10 via the frame 30, or the cylinder 21 and the bearing component 22 can be fixedly connected to the housing 10 via the frame 30.

[0025] It is understood that the phrase "cylinder 21 includes a powder metallurgy cylinder and / or first bearing 221 includes a first powder metallurgy bearing and / or second bearing 222 includes a second powder metallurgy bearing" in this application means that at least one of cylinder 21, first bearing 221, and second bearing 222 is made of powder metallurgy. That is, one of cylinder 21, first bearing 221, and second bearing 222 can be made of powder metallurgy, two of cylinder 21, first bearing 221, and second bearing 222 can be made of powder metallurgy, or all three of cylinder 21, first bearing 221, and second bearing 222 can be made of powder metallurgy.

[0026] In this embodiment, the accommodating cavity 101 provides installation space for the pump body assembly 20, effectively protecting internal components from external environmental interference. Since the pump body assembly 20 in this embodiment includes a cylinder 21 and a bearing component 22 connected to the cylinder 21, when installing the pump body assembly 20, it is only necessary to connect the cylinder 21 and / or the bearing component 22 in the pump body assembly 20 to the frame 30, and then fix the frame 30 to the housing 10. This installation method, which involves indirect connection via the frame 30, avoids many problems associated with traditional welding. In traditional welding methods, high temperatures can cause localized overheating at the connection between the pump body assembly 20 and the housing. This not only easily leads to poor welding conditions such as incomplete welds and porosity due to fluctuations in the welding process, affecting the stability and sealing of the overall structure, but also causes irreversible thermal deformation of the pump body assembly 20 due to thermal stress concentration. Especially for components like the cylinder 21, which have extremely high dimensional accuracy requirements, even minor deformation can affect the clearance between it and the internal piston, thereby reducing the pump's working efficiency and service life. By using the frame 30 as an intermediate connection structure, it is unnecessary to connect the pump body assembly 20 to the housing 10, effectively avoiding potential welding defects and thermal deformation of the pump body assembly 20 during assembly. Meanwhile, since at least one of the cylinder 21, the first bearing 221, and the second bearing 222 in this embodiment is made of powder metallurgy, when installing the pump body assembly 20 on the housing 10, it is only necessary to connect the cylinder 21 and / or the bearing component 22 in the pump body assembly 20 to the frame 30, and then fix the frame 30 to the housing 10. This effectively solves the problem that powder metallurgy pump body assemblies cannot be directly fixed to the housing by welding.

[0027] In other words, this application uses the frame 30 as an intermediate connection structure between the pump body assembly 20 and the housing 10, allowing the cylinder 21 and / or bearing component 22 to be connected to the frame 30 first, and then fixing the frame 30 to the housing 10, forming an indirect connection installation mode. This eliminates the problem of thermal deformation of the pump body assembly 20 caused by high-temperature welding, ensures the dimensional accuracy and fit clearance of key components such as the cylinder 21, and solves the problem that the powder metallurgy pump body assembly 20 cannot be directly fixed to the housing 10 by welding. This significantly improves the overall performance and reliability of the compressor, allowing the pump body assembly 20 to function more stably and efficiently within the accommodating cavity 101.

[0028] Understandably, when the first bearing 221 includes a first powder metallurgy bearing, its porous structure allows it to store lubricating oil, continuously providing lubrication to the friction surfaces during operation, reducing friction and wear between components, and extending the overall structure's service life. Simultaneously, powder metallurgy facilitates the precision forming of complex shapes, better adapting to the assembly dimensions of the frame 30 and cylinder 21, and improving the fitting accuracy of the connecting parts. Furthermore, compared to bearings manufactured using traditional metal cutting processes, the first powder metallurgy bearing boasts higher material utilization, a simpler production process, reduced manufacturing costs, and its material exhibits excellent shock absorption properties, buffering impact loads during operation and enhancing structural stability.

[0029] Understandably, when the second bearing 222 includes a second powder metallurgy bearing, its porous structure allows it to store lubricating oil, continuously providing lubrication to the friction surfaces during operation, reducing friction and wear between components, and extending the overall structure's service life. Simultaneously, powder metallurgy facilitates the precision forming of complex shapes, better adapting to the assembly dimensions of the cylinder 21 and improving the fitting accuracy of connecting parts. Furthermore, compared to bearings manufactured using traditional metal cutting, the second powder metallurgy bearing boasts higher material utilization, a simpler production process, reduced manufacturing costs, and its material exhibits excellent shock absorption properties, buffering impact loads during operation and enhancing structural stability.

[0030] Understandably, when cylinder 21 includes a powder metallurgy cylinder, its porous structure allows it to store lubricating oil, continuously providing lubrication to the friction surfaces during operation, reducing friction and wear between components, and extending the overall structure's service life. Simultaneously, powder metallurgy facilitates the precision forming of complex shapes, better adapting to the assembly dimensions of the first bearing 221 and the second bearing 222, and improving the fitting accuracy of the connecting parts. Furthermore, compared to cylinders manufactured using traditional metal cutting, powder metallurgy cylinders have higher material utilization, a simpler production process, reduced manufacturing costs, and their material possesses excellent shock absorption properties, buffering impact loads during operation and enhancing structural stability.

[0031] Further, see Figures 1 to 3 As shown, in this embodiment, the frame 30 is fixedly connected to the bearing component 22. The frame 30, the first bearing 221, the cylinder 21, and the second bearing 222 are arranged sequentially along the height direction of the housing 10. The frame 30 has multiple first connecting holes 31, the first bearing 221 has multiple second connecting holes (not shown in the figure), the cylinder 21 has multiple third connecting holes (not shown in the figure), and the second bearing 222 has multiple fourth connecting holes (not shown in the figure). The multiple first connecting holes 31, second connecting holes, third connecting holes, and fourth connecting holes are arranged in a one-to-one correspondence, and the first connecting holes 31, second connecting holes, and third connecting holes are locked together by a first locking member 40, and the third connecting holes and fourth connecting holes are locked together by a second locking member 50. It should be noted that the "height direction of the housing 10" in this application refers to... Figure 1 The direction indicated by the middle arrow X.

[0032] Specifically, in the prior art, the connection between the frame 30 and the first bearing 221, the first bearing 221 and the cylinder 21, and the cylinder 21 and the second bearing 222 needs to be achieved through multiple sets of independent and non-overlapping connection holes. That is, each set of adjacent components needs to be provided with a corresponding connection hole and locking component, which directly increases the number of locking components used, thereby increasing the manufacturing cost. Therefore, this embodiment sets up multiple first connecting holes 31, second connecting holes, third connecting holes and fourth connecting holes one by one, so that the first locking member 40 can pass through the first connecting hole 31, second connecting hole and third connecting hole at the same time, so as to realize the synchronous locking of the frame 30, the first bearing 221 and the cylinder 21. It is not necessary to set separate connecting holes and locking members for the frame 30 and the first bearing 221, and the first bearing 221 and the cylinder 21 respectively. At the same time, the second locking member 50 passes through the third connecting hole and the fourth connecting hole to complete the connection between the cylinder 21 and the second bearing 222. While ensuring the stable connection of each component, the number of locking members used is greatly reduced, the manufacturing cost caused by the excessive number of locking members is reduced, the assembly process is simplified and the production efficiency is improved.

[0033] Meanwhile, in the prior art, the preload of the locking element is transmitted sequentially from the locking element to the first bearing 221 and the cylinder 21. This can cause the surface pressure of the locking element to concentrate in a localized area (such as near the locking element), which may lead to deformation of the contact surface, increased wear, and even affect the connection stability. Therefore, in this embodiment, by having the first locking element 40 pass through the corresponding connecting holes of the frame 30, the first bearing 221, and the cylinder 21 simultaneously, the preload can be first conducted and dispersed through the frame 30, which has a certain thickness, and then evenly applied to the contact surface between the first bearing 221 and the cylinder 21, avoiding the concentration of surface pressure in a localized area and effectively improving the surface pressure.

[0034] For example, the first locking member 40 and the second locking member 50 in this embodiment include bolts, screws, studs, etc. Any other modifications under the concept of this application are within the protection scope of this application.

[0035] Optionally, the first connecting hole 31, the second connecting hole, the third connecting hole and the fourth connecting hole in this embodiment can be set to two, three or more, and this application does not make a specific limitation.

[0036] Furthermore, in this embodiment, the first bearing 221 includes a first powder metallurgy bearing and the cylinder 21 includes a powder metallurgy cylinder; or, the second bearing 222 includes a second powder metallurgy bearing and the cylinder 21 includes a powder metallurgy cylinder. That is to say, in one embodiment, only the first bearing 221 and the cylinder 21 are powder metallurgy; in another embodiment, only the second bearing 222 and the cylinder 21 are powder metallurgy.

[0037] Specifically, in this embodiment, the first bearing 221 is set as the first powder metallurgy bearing and used in conjunction with a powder metallurgy cylinder as cylinder 21, or the second bearing 222 is set as the second powder metallurgy bearing and used in conjunction with a powder metallurgy cylinder as cylinder 21. The porous structure of the powder metallurgy material can be used to achieve a good self-lubricating effect, reduce frictional wear between components, and improve the smoothness of equipment operation. The powder metallurgy process can accurately form complex structures, improve the dimensional accuracy and matching degree of these key components, and reduce the difficulty of adjustment during assembly. At the same time, the material has high strength and wear resistance, which can enhance the durability of components and extend the service life of the overall equipment.

[0038] Furthermore, in this embodiment, the types and / or proportions of metal powder in the powder metallurgy cylinder and the first powder metallurgy bearing, or the powder metallurgy cylinder and the second powder metallurgy bearing, are different. That is, in one embodiment, the types and / or proportions of metal powder in the powder metallurgy cylinder and the first powder metallurgy bearing are different; in another embodiment, the types and / or proportions of metal powder in the powder metallurgy cylinder and the second powder metallurgy bearing are different.

[0039] It is understood that, in this embodiment, the metal powder used in the powder metallurgy cylinder differs from the metal powder used in the first powder metallurgy bearing or the metal powder used in the second powder metallurgy bearing in at least one of the following aspects: the type of metal powder is different (e.g., the powder metallurgy cylinder uses iron-based powder, while the first powder metallurgy bearing uses copper-based powder); the proportion of metal powder is different (e.g., both use a mixture of iron and nickel powder, but the proportion of nickel in the powder metallurgy cylinder is 5%, while the proportion of nickel in the first powder metallurgy bearing is 8%). In short, the powder metallurgy cylinder differs from at least one of the two bearings in the type or proportion of metal powder; this difference may be limited to one or both.

[0040] Specifically, in this embodiment, the powder metallurgy cylinder and the first or second powder metallurgy bearing use different types and / or proportions of metal powder. This differentiated design allows each component to adapt to its own working requirements. The powder metallurgy cylinder can select a combination of metal powders with higher strength or better wear resistance based on characteristics such as the pressure and friction frequency it bears, ensuring structural stability during long-term engagement with the piston. The first and second powder metallurgy bearings can adjust the type and proportion of metal powders according to lubrication requirements and load-bearing capacity to optimize self-lubricating performance and structural toughness, complementing the performance of the cylinder 21. This avoids a situation where one component's performance is excessive while another's is insufficient due to the use of the same powder formula, thereby improving the overall operating efficiency and service life of the compressor.

[0041] Furthermore, in this embodiment, the first bearing 221 includes a first powder metallurgy bearing and the second bearing 222 includes a second powder metallurgy bearing; or, the first bearing 221 includes a first powder metallurgy bearing, the second bearing 222 includes a second powder metallurgy bearing, and the cylinder 21 includes a powder metallurgy cylinder. That is to say, in one embodiment, only the first bearing 221 and the second bearing 222 are made of powder metallurgy material; in another embodiment, the first bearing 221, the second bearing 222, and the cylinder 21 are all made of powder metallurgy material.

[0042] Specifically, in this embodiment, a first powder metallurgy bearing is used as the first bearing 221 and a second powder metallurgy bearing is used as the second bearing 222. Alternatively, the cylinder 21 can also be made of powder metallurgy material. This allows for self-lubrication by utilizing the porous nature of powder metallurgy materials, reducing friction and wear between components and extending the service life of the equipment. At the same time, the powder metallurgy process can form complex shapes in one step, which can improve the manufacturing precision and consistency of these components, reduce assembly difficulty, and has a high material utilization rate, which helps to control production costs.

[0043] Furthermore, in this embodiment, the types and proportions of metal powders in the first and second powder metallurgy bearings are the same (i.e., the raw material components and the ratios of each component in the first and second powder metallurgy bearings are completely identical).

[0044] Specifically, in this embodiment, the first and second powder metallurgy bearings use identical types of metal powders (e.g., both include specific metals such as iron and copper, as well as non-metallic powder components), and the weight or volume proportions of each type of powder in the overall raw material are also completely consistent. There is no material difference due to different types or proportions of metal powders. This arrangement means that the first and second powder metallurgy bearings are homogeneous in terms of raw material composition, ensuring that after being manufactured using the same powder metallurgy process, they possess consistent basic material properties (such as density, porosity, and basic mechanical properties), providing a material-level guarantee for their synergistic function or interchangeability in the device.

[0045] Furthermore, in this embodiment, the types and / or proportions of metal powder in the powder metallurgy cylinder and the first powder metallurgy bearing, or the powder metallurgy cylinder and the second powder metallurgy bearing, are different. That is, in one embodiment, the types and / or proportions of metal powder in the powder metallurgy cylinder and the first powder metallurgy bearing are different; in another embodiment, the types and / or proportions of metal powder in the powder metallurgy cylinder and the second powder metallurgy bearing are different.

[0046] It is understood that, in this embodiment, the metal powder used in the powder metallurgy cylinder differs from the metal powder used in the first powder metallurgy bearing or the metal powder used in the second powder metallurgy bearing in at least one of the following aspects: the type of metal powder is different (e.g., the powder metallurgy cylinder uses iron-based powder, while the first powder metallurgy bearing uses copper-based powder); the proportion of metal powder is different (e.g., both use a mixture of iron and nickel powder, but the proportion of nickel in the powder metallurgy cylinder is 5%, while the proportion of nickel in the first powder metallurgy bearing is 8%). In short, the powder metallurgy cylinder differs from at least one of the two bearings in the type or proportion of metal powder; this difference may be limited to one or both.

[0047] Specifically, in this embodiment, the powder metallurgy cylinder and the first or second powder metallurgy bearing use different types and / or proportions of metal powder. This differentiated design allows each component to adapt to its own working requirements. The powder metallurgy cylinder can select a combination of metal powders with higher strength or better wear resistance based on characteristics such as the pressure and friction frequency it bears, ensuring structural stability during long-term engagement with the piston. The first and second powder metallurgy bearings can adjust the type and proportion of metal powders according to lubrication requirements and load-bearing capacity to optimize self-lubricating performance and structural toughness, complementing the performance of the cylinder 21. This avoids a situation where one component's performance is excessive while another's is insufficient due to the use of the same powder formula, thereby improving the overall operating efficiency and service life of the compressor.

[0048] Furthermore, in this embodiment, the housing 10 includes a sheet metal housing, and the frame 30 includes a sheet metal frame. Specifically, since both the housing 10 and the frame 30 in this embodiment are made of sheet metal, when the frame 30 is welded to the housing 10, it can effectively avoid the welding stress concentration caused by different material properties, reduce the deformation of the housing 10 and the frame 30 after welding, ensure the dimensional accuracy and structural stability of the connection between the two, and at the same time, the similar materials also make the weld joint tighter, improve the sealing of the connection, and reduce the risk of failure caused by poor welding.

[0049] The sheet metal housing possesses excellent structural strength and forming precision, providing a stable mounting foundation and reliable protection for internal components such as the frame 30, first bearing 221, cylinder 21, and second bearing 222, resisting impacts and interference from the external environment. The ductility of sheet metal allows it to be processed into complex shapes according to the overall structural requirements of the compressor, precisely fitting the spatial design of the accommodating cavity 101 and ensuring the positional stability of each component when arranged in an orderly manner along the height of the housing 10. Simultaneously, the relatively lightweight sheet metal housing reduces the overall weight of the compressor while maintaining structural strength, facilitating transportation and installation.

[0050] The sheet metal frame and the sheet metal housing form a well-fitting connection structure, ensuring a stable relative position under fixing methods such as welding and snap-fitting. The sheet metal frame has good forming performance, thus enabling the first connecting hole 31 on the frame 30 to precisely correspond with the second connecting hole of the first bearing 221 and the third connecting hole of the cylinder 21, providing a precise positioning basis for the insertion of the first locking member 40 and ensuring assembly accuracy when multiple components are locked simultaneously. At the same time, the sheet metal frame also has a certain degree of toughness and strength, which can effectively bear the preload transmitted by the first locking member 40 and evenly distribute the force to the overall structure. Combined with its own thickness advantage, it further optimizes the surface pressure distribution, reduces deformation caused by excessive local stress, and works in synergy with the internal components to enhance the stability and reliability of the compressor's overall structure.

[0051] Furthermore, in this embodiment, the frame 30 and the housing 10 are fixedly connected by at least one of the following methods: welding, snap-fitting, interference fit, and laser grooving. That is to say, in this embodiment, the frame 30 and the housing 10 can be fixedly connected by welding, snap-fitting, interference fit, or laser grooving, or multiple methods of welding, snap-fitting, interference fit, and laser grooving can be used for fixed connection. This application does not make a specific limitation.

[0052] Specifically, welding is a connection method that uses heating, pressurization, or both to achieve atomic bonding of workpieces. It can fuse the frame 30 and the housing 10 into a whole, featuring high connection strength and good sealing, ensuring the long-term stability of the relative position between the frame 30 and the housing 10. Snap-fit ​​connections facilitate quick assembly and disassembly, saving time in production and maintenance. Interference fits utilize the interference between the frame 30 and the housing 10 to press the frame 30 into the housing 10, relying on the frictional force generated by the elastic deformation of the frame 30 material to achieve the connection. This connection method has a simple structure and strong load-bearing capacity. Laser grooving is a processing technology that uses a high-energy-density laser beam to irradiate the material surface, causing localized melting, evaporation, or chemical changes to form grooves on the surface. It is mainly used to change the surface morphology of materials, increasing the contact area of ​​the connection parts, enhancing friction, or providing a better bonding foundation for subsequent welding, bonding, and other processes. This embodiment, through the flexible selection of various methods, can not only adapt to different production scenarios and usage requirements, but also further ensure the stability of the connection between the frame 30 and the housing 10, providing reliable support for the stable operation of the pump body assembly 20.

[0053] Furthermore, in this embodiment, the frame 30 and the housing 10 are connected by at least one of gas shielded welding and laser welding. That is to say, in this embodiment, the frame 30 and the housing 10 can be connected by gas shielded welding or laser welding, or by a combination of gas shielded welding and laser welding; this application does not make any specific limitation.

[0054] Specifically, gas shielded welding, performed under a protective gas atmosphere, effectively isolates the weld pool from air intrusion, reducing defects such as porosity and cracks at the weld and ensuring stable weld quality. Laser welding, utilizing a highly focused laser beam, achieves high-precision welding, resulting in fine, uniform welds and a narrow heat-affected zone, minimizing damage to the base materials of the frame 30 and housing 10 during the welding process. This embodiment, through the flexible selection or combination of these two welding methods, can meet the connection requirements of different thicknesses, precisions, and materials, while ensuring a robust and reliable connection between the frame 30 and housing 10, effectively guaranteeing the stability and reliability of the compressor.

[0055] Further, see Figures 2 to 3As shown, the frame 30 in this embodiment is provided with multiple flow holes 32, which are spaced apart circumferentially along the frame 30 and extend circumferentially. This arrangement effectively guides the lubricating oil adhering to the surface of the frame 30 during the movement of the pump assembly 20. After the lubricating oil completes its lubrication at the lubrication points, it can flow back through the flow holes 32 to the oil storage area or circulation channel inside the pump assembly 20 by gravity and the fluid dynamics generated by the movement of the components. This not only prevents the lubricating oil from accumulating or leaking irregularly on the outside of the frame 30, reducing lubricating oil loss, but also ensures that the lubricating oil inside the pump assembly 20 is always maintained within a reasonable circulation range, continuously providing reliable lubrication for all moving parts, thereby improving the operational stability and service life of the pump assembly 20.

[0056] Optionally, the flow holes 32 in this embodiment may include two, three, four, or more; this application does not impose a specific limitation. Figure 2 The diagram shows the case where the flow holes 32 are set to six.

[0057] Further, see Figure 1 As shown, the compressor in this embodiment also includes a silencing component 60, which is disposed on the side of the frame 30 away from the pump body assembly 20 and integrally formed with the frame 30.

[0058] Specifically, in this embodiment, the silencer 60 is positioned on the side of the frame 30 away from the pump body assembly 20. This effectively blocks and absorbs the noise generated during compressor operation, reducing the intensity of noise propagation to the outside. Simultaneously, the silencer 60 and the frame 30 are integrally molded, reducing additional assembly steps, improving the overall structural stability, preventing vibration noise caused by assembly gaps, simplifying the production process, and helping to control manufacturing costs.

[0059] Specifically, in this embodiment, the muffler 60 and the frame 30 are integrally formed by stamping, casting, or other methods. Of course, in other embodiments of this application, the muffler 60 and the frame 30 can also be connected by welding, screwing, or other methods. Any other modifications within the concept of this application are within the protection scope of this application.

[0060] Further, see Figure 1 and Figure 3As shown, along the height direction of the housing 10, the thickness T of the frame 30 satisfies the relationship: 2.8mm ≤ T ≤ 4.5mm. For example, T can be set to 2.8mm, 2.9mm, 3mm, 3.1mm, 3.2mm, 3.3mm, 3.4mm, 3.5mm, 3.6mm, 3.7mm, 3.8mm, 3.9mm, 4mm, 4.1mm, 4.2mm, 4.3mm, 4.4mm, 4.5mm, etc. It should be noted that "height direction of the housing 10" in this application refers to... Figure 1 The direction indicated by the middle arrow X.

[0061] Specifically, when T is less than 2.8mm, the structural strength and support stiffness of the frame 30 will be significantly insufficient. During compressor operation, it will be difficult to stably support the weight of the internal components and will not effectively resist vibrations and external impacts, easily leading to deformation, bending, or even breakage, thus compromising the overall stability of the compressor structure. When T is greater than 4.5mm, it will result in excessive material consumption, increasing the manufacturing cost and weight of the frame 30. It will also excessively occupy the limited space inside the casing 10, squeezing the installation and layout space for other functional components. In other words, in this embodiment, by ensuring that the thickness T of the frame 30 satisfies the relationship: 2.8mm ≤ T ≤ 4.5mm, sufficient structural strength and support stiffness can be provided for the frame 30 to stably support the weight of the components and resist vibrations and external impacts during compressor operation, ensuring the overall reliability of the compressor's operation. This also avoids material waste due to excessive thickness.

[0062] Further, see Figure 1 As shown, along the width direction of the housing 10, the inner diameter D of the housing 10 in this embodiment satisfies the relationship: 89mm ≤ D ≤ 120mm. For example, D can be set to 89mm, 90mm, 92mm, 94mm, 96mm, 98mm, 100mm, 102mm, 104mm, 106mm, 108mm, 110mm, 112mm, 114mm, 116mm, 118mm, 120mm, etc. It should be noted that "the width direction of the housing 10" in this application refers to... Figure 1 The direction indicated by the middle arrow Y.

[0063] Specifically, when D is less than 89mm, the usable space inside the housing 10 is significantly reduced, making it difficult to accommodate core components such as the frame 30, bearing component 22, and cylinder 21, thus hindering a reasonable layout. When D is greater than 120mm, the overall volume of the housing 10 becomes too large, increasing material usage and resulting in higher manufacturing costs. In other words, by ensuring that the inner diameter D of the housing 10 satisfies the relationship 89mm≤D≤120mm, sufficient and suitable installation space is provided for all internal components, ensuring that the layout of components such as the frame 30, bearing component 22, and cylinder 21 is not limited or interfered with due to space constraints during assembly. This also reduces material usage and lowers manufacturing costs.

[0064] Furthermore, the compressor in this embodiment includes a single-cylinder compressor or a dual-cylinder compressor. This allows for flexible selection of the appropriate type based on the needs of different application scenarios. The single-cylinder compressor has a relatively simple structure and fewer parts, which not only facilitates manufacturing and subsequent maintenance but also effectively controls the overall size and weight. The dual-cylinder compressor, with its alternating operation of two cylinders, significantly improves gas compression efficiency and output power, enabling faster energy output in scenarios requiring temperature control in larger spaces or higher operational stability.

[0065] Further, see Figure 1 As shown, the compressor in this embodiment also includes a motor 70, and the pump assembly 20 includes a crankshaft 23. The crankshaft 23 is rotatably disposed in the accommodating cavity 101, and passes through the motor 70, the frame 30, the first bearing 221, the cylinder 21, and the second bearing 222. Specifically, when the compressor is operating, the motor 70 drives the crankshaft 23 to rotate, thereby driving the piston in the cylinder 21 to rotate synchronously, compressing the refrigerant and other components inside the pump assembly 20.

[0066] On the other hand, embodiments of this application also provide a refrigeration system including the aforementioned compressor, thus encompassing all the technical effects of the compressor. Since the technical effects of the compressor have already been described in detail above, they will not be repeated here.

[0067] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0068] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0069] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A compressor, characterized in that, include: Housing (10), the housing (10) having a receiving cavity (101); Pump body assembly (20), the pump body assembly (20) is disposed in the receiving cavity (101), the pump body assembly (20) includes a cylinder (21) and a bearing component (22) connected to the cylinder (21); The frame (30) is fixedly connected to the housing (10) via the cylinder (21) and / or the bearing component (22). The bearing component (22) includes a first bearing (221) and a second bearing (222), the cylinder (21) includes a powder metallurgy cylinder and / or the first bearing (221) includes a first powder metallurgy bearing and / or the second bearing (222) includes a second powder metallurgy bearing.

2. The compressor according to claim 1, characterized in that, The frame (30) is fixedly connected to the bearing component (22), and the frame (30), the first bearing (221), the cylinder (21), and the second bearing (222) are arranged sequentially along the height direction of the housing (10); The frame (30) is provided with a plurality of first connecting holes (31), the first bearing (221) is provided with a plurality of second connecting holes, the cylinder (21) is provided with a plurality of third connecting holes, and the second bearing (222) is provided with a plurality of fourth connecting holes. The plurality of first connecting holes (31), the plurality of second connecting holes, the plurality of third connecting holes and the plurality of fourth connecting holes are provided in a one-to-one correspondence, and the first connecting holes (31), the second connecting holes and the third connecting holes are locked together by a first locking member (40), and the third connecting holes and the fourth connecting holes are locked together by a second locking member (50).

3. The compressor according to claim 1, characterized in that, The first bearing (221) includes the first powder metallurgy bearing and the cylinder (21) includes the powder metallurgy cylinder; or, The second bearing (222) includes the second powder metallurgy bearing and the cylinder (21) includes the powder metallurgy cylinder.

4. The compressor according to claim 3, characterized in that, The powder metallurgy cylinder has a different type of metal powder and / or a different ratio of metal powder than the first powder metallurgy bearing or the second powder metallurgy bearing.

5. The compressor according to claim 1, characterized in that, The first bearing (221) includes the first powder metallurgy bearing and the second bearing (222) includes the second powder metallurgy bearing; or, The first bearing (221) includes the first powder metallurgy bearing, the second bearing (222) includes the second powder metallurgy bearing, and the cylinder (21) includes the powder metallurgy cylinder.

6. The compressor according to claim 5, characterized in that, The first powder metallurgy bearing and the second powder metallurgy bearing both use the same type of metal powder and have the same proportion of metal powder; and / or, The powder metallurgy cylinder has a different type of metal powder and / or a different ratio of metal powder than the first powder metallurgy bearing or the second powder metallurgy bearing.

7. The compressor according to any one of claims 1 to 6, characterized in that, The housing (10) includes a sheet metal housing, and the frame (30) includes a sheet metal frame.

8. The compressor according to any one of claims 1 to 6, characterized in that, The compressor also includes a silencing component (60), which is disposed on the side of the frame (30) away from the pump body assembly (20) and integrally formed with the frame (30).

9. The compressor according to any one of claims 1 to 6, characterized in that, Along the height direction of the housing (10), the thickness T of the frame (30) satisfies the following relationship: 2.8mm ≤ T ≤ 4.5mm; and / or, Along the width direction of the housing (10), the inner diameter D of the housing (10) satisfies the following relationship: 89mm≤D≤120mm.

10. The compressor according to any one of claims 1 to 6, characterized in that, The compressor includes a single-cylinder compressor or a dual-cylinder compressor.

11. A refrigeration system, characterized in that, The refrigeration system includes the compressor according to any one of claims 1 to 10.

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