Scroll compressor, air conditioner and vehicle
By adopting a four-point contact ball bearing structure in the scroll compressor, the problem of bearing damage has been solved, the service life of the bearing and compressor has been extended, reliability has been improved, and noise has been reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANQING WELLING AUTO PARTS CO LTD
- Filing Date
- 2024-08-30
- Publication Date
- 2026-06-02
AI Technical Summary
The bearings of scroll compressors are prone to damage, making it difficult to meet high-speed requirements, which affects the reliability and service life of scroll compressors.
The first bearing between the eccentric sleeve and the moving scroll is a four-point contact ball bearing, including an outer retaining ring, rolling elements, and an inner retaining ring. There are two contact points between the rolling elements and both the outer and inner retaining rings, which improves the load-bearing capacity.
It extends the service life of the first bearing, improves the service life and reliability of the scroll compressor, and reduces noise.
Smart Images
Figure CN224315168U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of compressor technology, and in particular to a scroll compressor, an air conditioner, and a vehicle. Background Technology
[0002] Scroll compressors are high-efficiency, low-noise, and stable-operating positive displacement compressors, widely used in automotive air conditioning systems.
[0003] In related technologies, a scroll compressor includes a compression assembly and a crankshaft. The compression assembly includes a moving scroll and a stationary scroll. An eccentric sleeve is provided at the end of the crankshaft. The crankshaft is adapted to drive the moving scroll to perform a revolution-translational motion relative to the stationary scroll through the eccentric sleeve to compress the refrigerant. A bearing is provided between the eccentric sleeve and the moving scroll to allow the eccentric sleeve to rotate relative to the moving scroll and prevent the moving scroll from rotating on its own axis.
[0004] As the speed requirements for scroll compressors become increasingly stringent, the bearings within the scroll compressor are prone to damage, making it difficult to meet the reliability requirements of scroll compressors and affecting their service life. Utility Model Content
[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a scroll compressor in which the first bearing between the eccentric sleeve and the moving scroll is constructed as a four-point contact ball bearing, effectively improving the load-bearing capacity of the first bearing and extending its service life, thereby extending the service life of the scroll compressor.
[0006] This utility model also proposes an air conditioner that includes the above-mentioned scroll compressor.
[0007] This utility model also proposes a vehicle that includes the above-mentioned air conditioner.
[0008] A scroll compressor according to an embodiment of the present invention includes: a housing, wherein a rotatable crankshaft is disposed within the housing; a compression assembly, wherein the compression assembly includes a stationary scroll and a moving scroll, the stationary scroll being stationary relative to the housing, the moving scroll cooperating with the stationary scroll to define a compression chamber suitable for compressing refrigerant, the end of the crankshaft being connected to the moving scroll via an eccentric sleeve to drive the moving scroll to perform a revolution-translational motion; and a first bearing, the first bearing being supported between the eccentric sleeve and the moving scroll, the first bearing including an outer retaining ring, rolling elements, and an inner retaining ring, the inner retaining ring being sleeved on the eccentric sleeve, the outer retaining ring being disposed on the moving scroll, the rolling elements being located between the outer retaining ring and the inner retaining ring, and the first bearing being constructed as a four-point contact ball bearing.
[0009] According to the scroll compressor of this utility model embodiment, the first bearing between the eccentric sleeve and the moving scroll is constructed as a four-point contact ball bearing, which effectively improves the load-bearing capacity of the first bearing and extends the service life of the first bearing, thereby extending the service life of the scroll compressor.
[0010] In some embodiments, the stationary scroll includes a first end plate and a stationary scroll, the first end plate being connected to the housing and the stationary scroll being disposed on the first end plate. The moving scroll includes a second end plate and a moving scroll disposed on the second end plate, the moving scroll engaging with the stationary scroll. A first groove is provided on the side of the second end plate away from the stationary scroll, and the first bearing is at least partially located within the first groove.
[0011] In some embodiments, the eccentric sleeve is provided with a limiting protrusion, which abuts against the first bearing to restrict the axial movement of the first bearing.
[0012] In some embodiments, the eccentric sleeve includes a main body, the main body and the limiting protrusion are separately machined parts, and the limiting member is fixed to the outer peripheral wall of the main body.
[0013] In some embodiments, a first limiting surface is provided in the first groove, and the first limiting surface abuts against the first bearing to restrict the axial movement of the first bearing. In the axial direction of the first bearing, the limiting protrusion and the first limiting surface are distributed on both sides of the first bearing.
[0014] In some embodiments, the second end plate has a protrusion on the side opposite to the stationary scroll, the first groove extends from the protrusion to the second end plate, and the scroll compressor further includes a bracket for supporting the crankshaft, the protrusion extending into the interior of the bracket.
[0015] In some embodiments, the scroll compressor is configured as a horizontal scroll compressor for a vehicle, the housing includes a first housing, a bracket and a second housing, the first housing has a refrigerant inlet and the second housing has a refrigerant outlet, the bracket is sandwiched between the first housing and the second housing, the moving scroll is disposed on the side of the bracket facing the second housing, and the crankshaft is disposed in the first housing and passes through the bracket.
[0016] In some embodiments, the outer diameter of the second end plate is d0, the outer diameter of the first bearing is d1, and the scroll compressor satisfies:
[0017] In some embodiments, the thickness of the second end plate is T, the length of the first bearing in the axial direction is B, and the scroll compressor satisfies:
[0018] The air conditioner according to an embodiment of the present invention includes: the scroll compressor described in the above technical solution.
[0019] The vehicle according to an embodiment of the present utility model includes: the air conditioner described in the above technical solution.
[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0022] Figure 1 This is a cross-sectional view of a scroll compressor according to some embodiments of the present invention;
[0023] Figure 2 This is a schematic diagram of the cooperation between the first bearing and the moving scroll according to some embodiments of the present utility model;
[0024] Figure 3 This is a cross-sectional view of a first bearing according to some embodiments of the present invention;
[0025] Figure 4 This is a schematic diagram of an eccentric sleeve according to some embodiments of the present invention.
[0026] Reference numerals: 100, scroll compressor; 1, housing; 11, first housing; 111, bracket; 112, crankshaft; 113, second bearing; 114, third bearing; 115, eccentric sleeve; 1151, main body; 1152, limiting protrusion; 117, refrigerant inlet; 12, second housing; 121, refrigerant outlet; 122, high-pressure chamber; 2, drive mechanism; 21, stator; 22, rotor; 3, compression assembly; 31, moving scroll; 311, second end plate; 3111, first groove; 3112, first limiting surface; 3113, protrusion; 312, moving scroll; 32, stationary scroll; 321, exhaust port; 322, first end plate; 323, stationary scroll; 33, compression chamber; 4, first bearing; 41, outer retaining ring; 42, rolling element; 43, inner retaining ring. Detailed Implementation
[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0028] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0030] The following is for reference. Figures 1-4 A scroll compressor 100 according to an embodiment of the present invention is described.
[0031] Reference Figure 1 , Figure 2 and Figure 3 According to an embodiment of the present invention, a scroll compressor 100 includes: a housing 1, a crankshaft 112, an eccentric sleeve 115, and a compression assembly 3. The compression assembly 3 includes a moving scroll 31 and a stationary scroll 32. The stationary scroll 32 is disposed on the housing 1 and stationary relative to the housing 1. The moving scroll 31 meshes with the stationary scroll 32, forming a compression chamber 33 between the moving scroll 31 and the stationary scroll 32. The moving scroll 31 is rotatable relative to the stationary scroll 32 to compress the refrigerant within the compression chamber 33.
[0032] The crankshaft 112 is rotatably mounted inside the housing 1 to drive the moving scroll 31 to rotate relative to the stationary scroll 32. One end of the crankshaft 112 is connected to the moving scroll 31 via an eccentric sleeve 115. A first bearing 4 is provided between the eccentric sleeve 115 and the moving scroll 31. When the crankshaft 112 rotates, the moving scroll 31 is driven to perform a revolution and translational motion under the transmission action of the eccentric sleeve 115 and the first bearing 4 to compress the refrigerant in the compression chamber 33.
[0033] In this embodiment of the present invention, the first bearing 4 includes an outer retaining ring 41, a rolling element 42 and an inner retaining ring 43. The inner retaining ring 43 is sleeved on an eccentric sleeve 115, the outer retaining ring 41 is disposed on a moving scroll 31, and the rolling element 42 is located between the outer retaining ring 41 and the inner retaining ring 43. The first bearing 4 is constructed as a four-point contact ball bearing.
[0034] Specifically, refer to Figure 3 The rolling element 42 has two sets of contact points, each set including two contact points. The two contact points in each set are the contact point between the rolling element 42 and the outer retaining ring 41 and the contact point between the rolling element 42 and the inner retaining ring 43, respectively. Figure 3 (The dots in the diagram represent contact points, not specific structures.) That is, there are two contact points between the rolling element 42 and the outer retaining ring 41, and also two contact points between the rolling element 42 and the inner retaining ring 43. Compared to related technologies where there is only one contact point between the rolling element 42 and the outer retaining ring 41, and only one contact point between the rolling element 42 and the inner retaining ring 43, in this embodiment of the invention, the first bearing 4 of the scroll compressor 100 has a stronger load-bearing capacity and a longer service life, thereby extending the service life of the scroll compressor 100.
[0035] Specifically, the outer retaining ring 41 has two arc-shaped surfaces on the side facing the rolling element 42, each arc-shaped surface contacting the rolling element 42, thus creating two contact points between the rolling element 42 and the outer retaining ring 41; the inner retaining ring 43 has two arc-shaped surfaces on the side facing the rolling element 42, each arc-shaped surface contacting the rolling element 42, thus creating two contact points between the rolling element 42 and the inner retaining ring 43.
[0036] It should be understood that the side of the outer retaining ring 41 / inner retaining ring 43 facing the rolling element 42 is not limited to an arc surface, but can also be a contact surface of other shapes such as an inclined surface or a curved surface, as long as there are two contact points between the outer retaining ring 41 / inner retaining ring 43 and the rolling element 42. This utility model does not impose any restrictions on this.
[0037] According to the scroll compressor 100 of this utility model embodiment, the first bearing 4 between the eccentric sleeve 115 and the moving scroll 31 is constructed as a four-point contact ball bearing, which effectively improves the load-bearing capacity of the first bearing 4 and extends the service life of the first bearing 4, that is, extends the service life of the scroll compressor 100.
[0038] In some further embodiments, the rolling element 42 has two sets of contact points, each set including two contact points. The two contact points in each set are the contact point between the rolling element 42 and the outer retaining ring 41, and the contact point between the rolling element 42 and the inner retaining ring 43. The angle between the line connecting the two contact points in the same set and the radial direction of the first bearing 4 is θ, where 15°≤θ≤60°.
[0039] The above technical solution limits the range of θ, enabling the first bearing 4 to have sufficient load-bearing capacity while reducing the noise of the scroll compressor 100. In some specific embodiments, θ can be any point value among 15°, 25°, 35°, 45°, and 60°, or a range between any two.
[0040] Reference Figure 1 and Figure 2 In some embodiments, the stationary scroll 32 includes a first end plate 322 and a stationary scroll 323. The first end plate 322 is connected to the housing 1, and the stationary scroll 323 is disposed on the first end plate 322. The moving scroll 31 includes a second end plate 311 and a moving scroll 312 disposed on the second end plate 311. The moving scroll 312 meshes with the stationary scroll 323 to define the compression chamber 33. The second end plate 311 has a first groove 3111 on the side opposite to the stationary scroll 32, and the first bearing 4 is at least partially located in the first groove 3111.
[0041] In this embodiment of the invention, the connection between the first bearing 4 and the moving scroll 31 is simple, which improves the assembly efficiency of the scroll compressor 100 and reduces the cost of the scroll compressor 100.
[0042] It should be noted that the first end plate 322 connected to the housing 1 can be either entirely disposed inside the housing 1 or formed as part of the housing 1. For example, in some embodiments, the housing 1 includes a first housing 11 and a second housing 12 spaced apart, with the first end plate 322 sandwiched between the first housing 11 and the second housing 12. In this embodiment, the first end plate 322 is part of the housing 1. It should also be noted that in embodiments where the first end plate 322 is entirely disposed inside the housing 1, the first end plate 322 can be integrally formed with the housing 1, or it can be a separate formed part from the housing 1, as long as the first end plate 322 is fixedly disposed on the housing 1. In an embodiment where the first end plate 322 is sandwiched between the first housing 11 and the second housing 12, the first end plate 322 may be an integrally formed part with the first housing 11 and / or the second housing 12. Alternatively, the first end plate 322, the first housing 11, and the second housing 12 may be three separate parts, as long as the first end plate 322, the first housing 11, and the second housing 12 are fixedly arranged.
[0043] In some embodiments, the outer diameter of the second end plate 311 is d0, the outer diameter of the first bearing 4 is d1, and the scroll compressor 100 satisfies:
[0044] With the outer diameter d0 of the second end plate 311 remaining constant, the larger the outer diameter d1 of the first bearing 4, the higher the load-bearing capacity of the first bearing 4. However, if the outer diameter d1 of the first bearing 4 is too large, it will affect the compactness of the overall structure of the scroll compressor 100. In this embodiment of the present invention, the range of the ratio of the outer diameter d1 of the first bearing 4 to the outer diameter d0 of the second end plate 311 is limited, ensuring the compactness of the overall structure of the scroll compressor 100 while ensuring that the first bearing 4 has sufficient load-bearing capacity.
[0045] In some specific embodiments, It can be any point value among 0.3, 0.4, 0.5, 0.6, and 0.8, or a range of values between any two.
[0046] In some embodiments, the thickness of the second end plate 311 is T, the length of the first bearing 4 in the axial direction is B, and the scroll compressor 100 satisfies:
[0047] With T remaining constant, the larger B is, the higher the load-bearing capacity of the first bearing 4. However, if B is too large, it will affect the compactness of the overall structure of the scroll compressor 100. In this embodiment of the invention, the range of the ratio of B to T is limited to ensure the compactness of the overall structure of the scroll compressor 100, while also ensuring that the first bearing 4 has sufficient load-bearing capacity.
[0048] In some specific embodiments, It can be any one of the point values 1.2, 1.4, 1.5, 1.8, and 2, or a range of values between any two.
[0049] Reference Figure 1 , Figure 2 and Figure 4 In some embodiments, the eccentric sleeve 115 is provided with a limiting protrusion 1152, which abuts against the first bearing 4 to restrict the axial movement of the first bearing 4, effectively improving the stability of the first bearing 4 and ensuring the stability of the revolution translational motion of the moving vortex disk 31.
[0050] In some further embodiments, the eccentric sleeve 115 includes a main body 1151, the main body 1151 and the limiting protrusion 1152 are separately machined parts, and the limiting protrusion 1152 is fixed to the outer peripheral wall of the main body 1151.
[0051] In this embodiment of the utility model, the main body 1151 and the limiting protrusion 1152 are separately processed parts. That is, the main body 1151 and the limiting protrusion 1152 can be processed separately, and then the limiting protrusion 1152 is fixed to the main body 1151 to form the eccentric sleeve 115. This is beneficial to improve the processing accuracy of the eccentric sleeve 115, increase the production speed of the eccentric sleeve 115, and reduce the cost of the eccentric sleeve 115, thereby reducing the cost of the scroll compressor 100.
[0052] In some embodiments, the main body 1151 is cylindrical in shape, allowing the outer diameter of the main body 1151 to be precision ground using a centerless grinding process, effectively improving the machining accuracy and speed of the main body 1151. The limiting protrusion 1152 is formed into a ring shape and is fitted onto the main body 1151. The limiting protrusion 1152 can be formed using a sheet metal stamping process, effectively improving the machining speed of the eccentric sleeve 115.
[0053] In this embodiment of the utility model, the main body 1151 and the limiting protrusion 1152 have simple structures, which improves the overall processing speed of the eccentric sleeve 115 and reduces the cost of the eccentric sleeve 115.
[0054] It should be understood that the main body 1151 and the limiting protrusion 1152 can also be processed by other processing methods, and this utility model does not limit them.
[0055] In some further embodiments, the limiting protrusion 1152 is interference-fitted with the main body 1151.
[0056] In this embodiment of the utility model, the limiting protrusion 1152 is tightly connected to the main body 1151 and is not easy to loosen, which ensures the overall strength of the eccentric sleeve 115 and the reliability of the eccentric sleeve 115. Furthermore, no other fasteners need to be set between the limiting protrusion 1152 and the main body 1151, which simplifies the structure of the eccentric sleeve 115 and further reduces the cost of the eccentric sleeve 115.
[0057] It should be understood that in other embodiments, the limiting protrusion 1152 can also be fixed to the main body 1151 by means of threaded connection, snap-fit, etc. As long as the limiting protrusion 1152 can be fixed to the main body 1151, this utility model does not limit the specific connection method.
[0058] Reference Figure 1 , Figure 2 and Figure 4In some embodiments, a first limiting surface 3112 is provided in the first groove 3111. The first limiting surface 3112 abuts against the first bearing 4 to restrict the axial movement of the first bearing 4. In the axial direction of the first bearing 4, the limiting protrusion 1152 of the eccentric sleeve 115 and the first limiting surface 3112 are distributed on both sides of the first bearing 4, which further improves the stability of the first bearing 4.
[0059] In some embodiments, the second end plate 311 has a protrusion 3113 on the side opposite to the stationary vortex disk 32, and the first groove 3111 extends from the protrusion 3113 to the second end plate 311.
[0060] In this embodiment of the utility model, the protrusion 3113 deepens the depth of the first groove 3111, increases the contact area between the first bearing 4 and the first groove 3111, and improves the stability of the cooperation between the first bearing 4 and the moving scroll 31.
[0061] In some further embodiments, the housing 1 is provided with a bracket 111 for supporting the crankshaft 112, and the protrusion 3113 extends into the interior of the bracket 111, which effectively improves the compactness of the scroll compressor 100 and is conducive to the miniaturization of the scroll compressor 100.
[0062] Reference Figure 1 , Figure 2 and Figure 4 In some embodiments, the scroll compressor 100 is configured as a horizontal scroll compressor for a vehicle, and the scroll compressor 100 includes: a housing 1, a drive mechanism 2, and a compression assembly 3.
[0063] The housing 1 includes a first housing 11, a bracket 111, and a second housing 12, with the bracket 111 sandwiched between the first housing 11 and the second housing 12. A rotatable crankshaft 112 is disposed within the first housing 11, and a second bearing 113 is provided in the first housing 11 to support the crankshaft 112. The bracket 111 is provided with a third bearing 114 to support the crankshaft 112. That is, one end of the crankshaft 112 is rotatably mounted on the first housing 11 via the second bearing 113, and the other end of the crankshaft 112 is rotatably mounted on the bracket 111 via the third bearing 114.
[0064] The drive mechanism 2 is disposed inside the first housing 11 and is located between the second bearing 113 and the third bearing 114. The drive mechanism 2 includes a stator 21 and a rotor 22. The stator 21 is disposed on the inner wall of the first housing 11, and the rotor 22 is sleeved on the crankshaft 112. The stator 21 and the rotor 22 are coupled together. When the drive mechanism 2 is working, the stator 21 drives the crankshaft 112 to rotate through the rotor 22, so that the crankshaft 112 can drive the rotating scroll 31 to rotate.
[0065] The compression assembly 3 includes a moving scroll 31, a stationary scroll 32, and an anti-rotation structure. The stationary scroll 32 is disposed on the side of the support 111 facing away from the first housing 11, and is fixedly disposed relative to the support 111. The stationary scroll 32 includes a first end plate 322 and a stationary scroll 323. The first end plate 322 is sandwiched between the support 111 and the second housing 12. The moving scroll 31 is located between the stationary scroll 32 and the support 111. The moving scroll 31 includes a second end plate 311 and a moving scroll 312. The stationary scroll 323 and the moving scroll 312 mesh with each other, thereby defining a compression cavity 33 between the stationary scroll 323 and the moving scroll 312. The anti-rotation structure is used to limit the rotation of the moving scroll 31 while allowing the moving scroll 31 to perform a revolution-translational motion relative to the stationary scroll 32.
[0066] An eccentric sleeve 115 is provided at one end of the crankshaft 112 facing the moving scroll 31. The crankshaft 112 is adapted to drive the moving scroll 31 to rotate through the eccentric sleeve 115. A first bearing 4 is provided between the eccentric sleeve 115 and the moving scroll 31. The first bearing 4 is constructed as a four-point contact ball bearing so that the crankshaft 112 can drive the moving scroll 31 to perform a revolution translational motion relative to the stationary scroll 32.
[0067] The first housing 11 is provided with a refrigerant inlet 117, which communicates with the internal space of the first housing 11. The internal space of the first housing 11 is also communicated with the air intake of the compression chamber 33. The second housing 12 is located on the side of the stationary scroll 32 away from the moving scroll 31. The second housing 12 is provided with a high-pressure chamber 122. The stationary scroll 32 is provided with an exhaust port 321 that communicates with the high-pressure chamber 122. The second housing 12 is also provided with a refrigerant outlet 121 that communicates with the high-pressure chamber 122. The refrigerant in the compression chamber 33 can enter the high-pressure chamber 122 through the exhaust port 321 and then be discharged through the refrigerant outlet 121.
[0068] When the scroll compressor 100 is working, the stator 21 drives the crankshaft 112 to rotate through the rotor 22. The crankshaft 112 drives the moving scroll 31 to revolve relative to the stationary scroll 32 through the eccentric sleeve 115, so that the refrigerant can be compressed in the compression chamber 33. The refrigerant in the external working circuit is drawn into the internal space of the first housing 11 through the refrigerant inlet 117, and then drawn into the compression chamber 33 through the suction port for compression. The compressed high-pressure refrigerant enters the high-pressure chamber 122 through the exhaust port 321, and then is discharged through the refrigerant outlet 121.
[0069] Other configurations and operations of the scroll compressor 100 according to embodiments of the present invention are known to those skilled in the art and will not be described in detail here.
[0070] The air conditioner according to the present invention includes the scroll compressor 100 described above.
[0071] According to the embodiment of the present invention, the first bearing 4 between the eccentric sleeve 115 and the moving scroll 31 is constructed as a four-point contact ball bearing, which effectively improves the load-bearing capacity of the first bearing 4, extends the service life of the first bearing 4, extends the service life of the scroll compressor 100, and improves the reliability of the air conditioner.
[0072] The vehicle according to the present utility model embodiment includes the air conditioner in the above technical solution, or includes the scroll compressor 100 in the above technical solution.
[0073] According to the vehicle of the present invention, in the scroll compressor 100, the first bearing 4 between the eccentric sleeve 115 and the moving scroll 31 is constructed as a four-point contact ball bearing, which effectively improves the load-bearing capacity of the first bearing 4, extends the service life of the first bearing 4, extends the service life of the scroll compressor 100, and improves the reliability of the air conditioner.
[0074] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0075] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A scroll compressor characterized by, include: A housing, wherein a rotatable crankshaft is disposed within the housing; A compression assembly, comprising a stationary scroll and a moving scroll, wherein the stationary scroll is stationary relative to the housing, and the moving scroll cooperates with the stationary scroll to define a compression chamber suitable for compressing refrigerant; the end of the crankshaft is connected to the moving scroll via an eccentric sleeve to drive the moving scroll to perform a revolution-translational motion. A first bearing is supported between the eccentric sleeve and the moving scroll. The first bearing includes an outer retaining ring, rolling elements, and an inner retaining ring. The inner retaining ring is sleeved on the eccentric sleeve, the outer retaining ring is disposed on the moving scroll, and the rolling elements are located between the outer retaining ring and the inner retaining ring. The first bearing is constructed as a four-point contact ball bearing.
2. The scroll compressor of claim 1, wherein The stationary scroll includes a first end plate and a stationary scroll. The first end plate is connected to the housing, and the stationary scroll is disposed on the first end plate. The moving scroll includes a second end plate and a moving scroll disposed on the second end plate. The moving scroll meshes with the stationary scroll. The second end plate has a first groove on the side away from the stationary scroll, and the first bearing is at least partially located in the first groove.
3. The scroll compressor of claim 2, wherein, The eccentric sleeve is provided with a limiting protrusion, which abuts against the first bearing to restrict the axial movement of the first bearing.
4. The scroll compressor of claim 3, wherein The eccentric sleeve includes a main body, and the main body and the limiting protrusion are separately machined parts, with the limiting protrusion fixed to the outer peripheral wall of the main body.
5. The scroll compressor of claim 3, wherein The first groove is provided with a first limiting surface, which abuts against the first bearing to restrict the axial movement of the first bearing. On the axial direction of the first bearing, the limiting protrusion and the first limiting surface are distributed on both sides of the first bearing.
6. The scroll compressor of claim 2, wherein, The second end plate has a protrusion on the side opposite to the stationary scroll, and the first groove extends from the protrusion to the second end plate. The scroll compressor also includes a bracket for supporting the crankshaft, and the protrusion extends into the bracket.
7. The scroll compressor of claim 1, wherein The scroll compressor is configured as a horizontal scroll compressor for vehicles. The housing includes a first housing, a bracket, and a second housing. The first housing has a refrigerant inlet, and the second housing has a refrigerant outlet. The bracket is sandwiched between the first housing and the second housing. The moving scroll is disposed on the side of the bracket facing the second housing. The crankshaft is disposed in the first housing and passes through the bracket.
8. The scroll compressor of claim 2, wherein, The outer diameter of the second end plate is d0, the outer diameter of the first bearing is d1, and the scroll compressor satisfies:
9. The scroll compressor of claim 2, wherein, The thickness of the second end plate is T, the length of the first bearing in the axial direction of the first bearing is B, and the scroll compressor satisfies:
10. An air conditioner characterized by comprising: include: The scroll compressor according to any one of claims 1-9.
11. A vehicle characterized by comprising: include: The air conditioner according to claim 10; Alternatively, a scroll compressor according to any one of claims 1-9.