Scroll compressor rack, scroll compressor and refrigeration equipment

Abstract

The utility model discloses a scroll compressor rack, a scroll compressor and refrigeration equipment, and the scroll compressor rack comprises a bearing surface which is used for being in contact with a moving scroll plate; the sinking groove is formed by extending from the bearing face in the direction away from the moving scroll plate, so that a gap exists between the bearing face and the moving scroll plate when the bearing face makes contact with the moving scroll plate. The bearing surface is processed to form the sinking groove, so that the contact area between the bearing surface and the moving scroll plate is reduced on the basis that the bearing surface can still bear the moving scroll plate, on one hand, excessive high-precision processing planes can be avoided, the processing cost is reduced, on the other hand, the friction between the rack and the moving scroll plate can be reduced, and the service life of the rack is prolonged. In addition, when small impurities exist between the movable scroll plate and the rack, the sinking groove can reserve space for the impurities, normal movement of the movable plate is guaranteed, and therefore the service life of the compressor is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of scroll compressors, and in particular to a scroll compressor frame, a scroll compressor, and a refrigeration device. Background Art

[0002] The rotor and frame in the related art have a large contact surface, requiring very high precision in this contact surface. If the contact surface between the rotor and frame does not meet a certain precision or if impurities are present between them, the back of the rotor can easily wear and tear, causing it to become rough. Furthermore, during compressor operation, the rotor will also experience sliding friction with the sealing ring. This high-frequency friction can easily wear the sealing ring, significantly shortening its lifespan and making it difficult to maintain its original function. Summary of the Invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a scroll compressor frame that can reduce friction between the rotor plate and the frame support surface, ensure normal movement of the rotor plate, and extend the service life of the compressor.

[0004] The present application also provides a scroll compressor comprising the scroll compressor frame.

[0005] The present application also provides a refrigeration device comprising the scroll compressor.

[0006] A scroll compressor frame according to an embodiment of the first aspect of the present application includes:

[0007] A bearing surface for contacting the moving scroll;

[0008] The sunken groove is formed by extending from the supporting surface in a direction away from the moving scroll, so that a gap exists between the supporting surface and the moving scroll when the supporting surface contacts the moving scroll.

[0009] The scroll compressor frame according to the first aspect embodiment of the present application has at least the following beneficial effects: by forming a groove on the supporting surface, the supporting surface can still support the moving scroll plate, while reducing the contact area between the supporting surface and the moving scroll plate. On the one hand, it can avoid the existence of too many high-precision processing planes and reduce the processing cost. On the other hand, it can reduce the friction between the frame and the moving scroll plate, ensure the accuracy while reducing the wear on the sealing ring. In addition, when there are small impurities between the moving scroll plate and the frame, the setting of the groove can leave space for the impurities, ensure the normal movement of the moving plate, and thus extend the service life of the compressor.

[0010] According to the scroll compressor frame described in the embodiment of the first aspect of the present application, the depth of the sinking groove extending in the direction away from the moving scroll plate is 0.05mm-0.7mm.

[0011] According to the scroll compressor frame described in the embodiment of the first aspect of the present application, the sink is an annular sink;

[0012] Or the sink is an annular sink, and the sink is coaxial with the moving scroll.

[0013] According to the scroll compressor frame described in the embodiment of the first aspect of the present application, the outer ring diameter of the sink is Φ68.8mm~Φ76.8mm.

[0014] According to the scroll compressor frame described in the embodiment of the first aspect of the present application, a mounting groove is formed on the supporting surface, and the mounting groove is located on the inner side of the sinking groove. The mounting groove is used to set a sealing assembly so that sealing can be achieved through the sealing assembly when the supporting surface contacts the moving scroll plate.

[0015] According to the scroll compressor frame described in the embodiment of the first aspect of the present application, the inner circle of the sink groove is adjacent to the outer edge of the mounting groove.

[0016] According to the scroll compressor frame described in the embodiment of the first aspect of the present application, the mounting groove is an annular mounting groove, and the sealing assembly includes a sealing ring, which is arranged in the mounting groove.

[0017] According to the scroll compressor frame described in the embodiment of the first aspect of the present application, the sealing assembly includes an elastic retaining ring, and the sealing ring and the elastic retaining ring are sequentially arranged in the mounting groove in a direction away from the moving scroll plate.

[0018] A scroll compressor according to an embodiment of the second aspect of the present application includes: a scroll compressor frame as described in the embodiment of the first aspect of the present application.

[0019] The refrigeration device according to the third embodiment of the present application includes: the scroll compressor as described in the second embodiment of the present application.

[0020] It is not difficult to understand that the scroll compressor in the embodiment of the second aspect of the present application and the refrigeration equipment in the embodiment of the third aspect of the present application both have the technical effects of the scroll compressor frame in the embodiment of the first aspect described above, and therefore will not be described in detail.

[0021] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present application is further described below with reference to the accompanying drawings and embodiments;

[0023] Figure 1 A cross-sectional view of an embodiment of the present application;

[0024] Figure 2 for Figure 1 A magnified view of middle A;

[0025] Figure 3 for Figure 1 A in the middle is an enlarged view of only the rack;

[0026] Figure 4 This is a top view of the rack in the embodiment of the present application.

[0027] Reference numerals:

[0028] 100, frame; 110, supporting surface; 111, sink; 112, mounting slot;

[0029] 200, moving scroll;

[0030] 300, sealing assembly; 310, sealing ring; 320, elastic retaining ring. DETAILED DESCRIPTION

[0031] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0032] In the description of this application, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0033] In the description of this application, "several" means one or more, "more" means at least two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly specifying the number or order of the technical features.

[0034] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense. Technical personnel in the relevant technical field can reasonably determine the specific meanings of the above terms in this application after combining the specific content of the technical solution.

[0035] Reference Figures 1 to 4 The scroll compressor frame 100 of the first embodiment of the present application is applied to a scroll compressor, and the scroll compressor frame 100 includes a supporting surface 110.

[0036] The supporting surface 110 is used to contact the moving scroll 200 ; the sinking groove 111 extends from the supporting surface 110 in a direction away from the moving scroll 200 , so that a gap exists between the supporting surface 110 and the moving scroll 200 when the supporting surface 110 contacts the moving scroll 200 .

[0037] The support surface 110 of the rotating scroll 200 is provided to prevent the rotating scroll 200 from rotating.

[0038] It should be noted that the depth of the groove 111 machined on the supporting surface 110 needs to be within an appropriate range to ensure that the supporting surface 110 can properly contact and support the moving scroll 200. On this basis, by limiting the groove depth of the groove 111, it is possible to reduce friction between the frame 100 and the moving scroll 200 while leaving more space for impurities. In this regard, in some embodiments of the present application, the depth of the groove 111 extending away from the moving scroll 200 is 0.05mm to 0.7mm. It can be understood that based on the above-mentioned dimensional limitations, wear on the sealing ring 310 is reduced, normal movement of the moving disk is ensured, and the service life of the compressor is extended.

[0039] In some embodiments, the depth of the groove 111 can be adaptively adjusted according to the size of the scroll compressor frame 100 or the contact area between the supporting surface 110 and the moving scroll plate 200, so that the compressor can still maintain its original working efficiency, the processing cost of the frame 100 can be significantly reduced, and the service life of the sealing ring 310 can be extended.

[0040] In some embodiments of the present application, the groove 111 is an annular groove 111. It can be understood that the supporting surface 110 is a surface with a certain processing accuracy and contacts the moving scroll 200. Considering that the moving scroll 200 will continue to rotate when the compressor is working, the groove 111 is designed to be an annular groove 111. On the one hand, it conforms to the movement characteristics of the moving scroll 200 and achieves a better friction reduction effect. On the other hand, it can accommodate smaller impurities between the moving scroll 200 and the frame 100 in all directions along the rotation direction, thereby achieving a better effect.

[0041] In some embodiments, the sink 111 is an annular sink 111 , and the sink 111 is coaxial with the moving scroll 200 . The coaxial arrangement makes the structural design of the sink 111 more reasonable.

[0042] In some embodiments, the coaxial arrangement of the sink 111 and the moving scroll 200 can be understood as assembly while satisfying the coaxiality, that is, after the coaxiality is determined according to actual conditions, it can be regarded as a coaxial arrangement while satisfying the processing and assembly requirements.

[0043] It should be noted that the area of ​​the groove 111 machined on the supporting surface 110 needs to be within an appropriate range to ensure that the supporting surface 110 can properly contact and support the moving scroll 200. On this basis, by limiting the area size of the groove 111, the friction between the frame 100 and the moving scroll 200 can be reduced while controlling the processing cost of the frame 100 within an appropriate range and leaving more space for impurities. To this end, in some embodiments of the present application, the outer diameter of the groove 111 is Φ68.8mm to Φ76.8mm. It can be understood that based on the above-mentioned size limitation, within this range, the compressor still maintains its original operating efficiency, the processing cost of the frame 100 is significantly reduced, and the service life of the sealing ring 310 is extended.

[0044] In some embodiments, when the outer diameter of the sink 111 is Φ68.8, the contact area between the frame 100 and the rotor plate is reduced by approximately 25.87% of the original area. When the outer diameter of the sink 111 is increased to Φ76.8, the contact area between the frame 100 and the rotor plate is reduced by approximately 55.63% of the original area. Therefore, within this range, the compressor maintains its original operating efficiency, significantly reduces the manufacturing cost of the frame 100, and extends the service life of the sealing ring 310.

[0045] In some embodiments of the present application, a mounting groove 112 is formed on the supporting surface 110. The mounting groove 112 is located inside the sink 111. The mounting groove 112 is used to mount a sealing assembly 300 so that a seal can be achieved through the sealing assembly 300 when the supporting surface 110 contacts the moving scroll 200. It is understood that the sealing assembly 300 is disposed between the supporting surface 110 and the moving scroll 200 and performs a sealing function. By arranging the mounting groove 112 inside the sink 111, the sealing assembly 300 plays a corresponding role as the sink 111 structure without affecting the sealing performance of the sealing assembly 300. In addition to ensuring that the sealing assembly 300 can isolate the high-pressure chamber from the medium-pressure chamber, it can also control the amount of oil flowing from the high-pressure chamber to the medium-pressure chamber, thereby preventing the compression space between the moving plate and the fixed plate from containing too much oil, which would reduce the compression efficiency.

[0046] In some embodiments of the present application, the mounting groove 112 is an annular mounting groove 112, and the sealing assembly 300 includes a sealing ring 310, which is disposed in the mounting groove 112. It is understood that the sealing ring 310 can meet the sealing requirements between the moving scroll 200 and the frame 100, and therefore the mounting groove 112 is designed to be an annular mounting groove 112 based on the structural adaptability of the sealing ring 310.

[0047] In some embodiments, the sealing assembly 300 includes a circlip 320. The sealing ring 310 and the circlip 320 are sequentially disposed within the mounting groove 112 in a direction away from the moving scroll 200. It is understood that the circlip 320 allows the sealing ring 310 to be tightly attached to the bottom surface of the moving scroll.

[0048] In some embodiments, the circlip 320 is a wave shaped circlip 320 , thereby improving the operation accuracy and stability.

[0049] It should be noted that when small impurities are present between the rotor plate and the frame 100, the recessed groove 111 machined into the supporting surface 110 can serve as a space to accommodate the impurities. Therefore, to better reduce wear on the contact surface between the rotor plate and the frame 100 and protect the bottom surface of the rotor plate, in some embodiments of the present application, the inner ring of the recessed groove 111 is adjacent to the outer edge of the mounting groove 112. It will be appreciated that by designing the inner ring of the recessed groove 111 adjacent to and connected to the outer edge of the mounting groove 112, impurities can more easily fall into the recessed groove 111, thereby preventing damage to the sealing ring 310 and extending the service life of the compressor.

[0050] In some embodiments of the present application, a recessed groove 111 is machined on the support surface 110 of the frame 100 near the sealing ring 310. The outer portion of recessed groove 111 remains the support surface 110 of the frame 100 for the rotor disc, directly contacting the rotor disc. The sealing ring 310 is located within the recessed groove, separating the intermediate and high-pressure chambers. This design reduces the contact area between the rotor disc and the frame 100, avoiding the presence of excessive high-precision machining surfaces and reducing machining costs. It also reduces friction between the rotor disc and the support surface 110 of the frame 100 during compressor operation, ensuring the accuracy of the rotor disc's bottom surface and thereby preventing wear on the sealing ring 310 during relative motion between the bottom surface of the rotor disc and the sealing ring 310. Furthermore, it provides space for small impurities between the rotor disc and the frame 100, ensuring normal motion of the rotor disc, reducing wear at the friction points between the rotor disc and the frame 100, and protecting the back of the rotor disc, thereby preventing damage to the sealing ring 310 and extending the service life of the compressor.

[0051] Reference Figures 1 to 4 The scroll compressor of the second embodiment of the present application includes the scroll compressor frame 100 of the first embodiment of the present application. By forming a groove 111 on the supporting surface 110, the supporting surface 110 can still support the moving scroll 200. The contact area between the supporting surface 110 and the moving scroll 200 is reduced by the setting of the groove 111. On the one hand, it can avoid the existence of too many high-precision machined planes such as the supporting surface 110 and the corresponding surfaces in the moving scroll 200 that contact the supporting surface 110, thereby reducing the processing cost. On the other hand, it can reduce the friction between the frame 100 and the moving scroll 200, ensuring accuracy while reducing the wear on the sealing ring 310. In addition, when there are small impurities between the moving scroll 200 and the frame 100, the setting of the groove 111 can leave space for the impurities, ensuring the normal movement of the moving disk, thereby extending the service life of the compressor.

[0052] In some embodiments, the parts of the scroll compressor include a moving scroll 200 (referred to as the moving scroll), a fixed scroll (referred to as the fixed scroll), a frame 100, a crankshaft, a motor, a casing, and the like. After the compressor is powered on, the motor drives the crankshaft to rotate, and the eccentric portion of the crankshaft drives the moving scroll to rotate around the axis, causing the moving scroll to continuously engage with the fixed scroll, thereby continuously sucking in and compressing the gaseous refrigerant. The sealing ring 310 is located in a groove at the bottom of the moving scroll and in the center of the supporting surface 110 of the frame 100. Under the action of the corrugated elastic retaining ring 320, the sealing ring 310 is tightly attached to the bottom surface of the moving scroll. In some embodiments, one of the uses of the sealing ring 310 is to isolate the high-pressure chamber from the medium-pressure chamber; the second use is to control the amount of oil flowing from the high-pressure chamber to the medium-pressure chamber, thereby preventing the compression space between the moving scroll and the fixed scroll from containing too much oil, which would reduce the compression efficiency.

[0053] The refrigeration equipment of the third embodiment of the present application may be a heat pump, an air conditioner, a freezing and refrigeration equipment, etc. The refrigeration equipment includes the scroll compressor of the second embodiment of the present application.

[0054] It is not difficult to understand that the scroll compressor in the embodiment of the second aspect of the present application and the refrigeration equipment in the embodiment of the third aspect of the present application both have the technical effects of the scroll compressor frame in the embodiment of the first aspect described above, and therefore will not be described in detail.

[0055] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present application.

Claims

1. A scroll compressor frame, characterized in that: include: A bearing surface for contacting the moving scroll; The sunken groove is formed by extending from the supporting surface in a direction away from the moving scroll, so that a gap exists between the supporting surface and the moving scroll when the supporting surface contacts the moving scroll.

2. The scroll compressor frame according to claim 1, characterized in that: The sinking groove extends in a direction away from the moving scroll and has a depth of 0.05 mm to 0.7 mm.

3. The scroll compressor frame according to claim 1, characterized in that: The sink is an annular sink; Or the sink is an annular sink, and the sink is coaxial with the moving scroll.

4. The scroll compressor frame according to claim 3, characterized in that: The outer ring diameter of the sink is Φ68.8mm~Φ76.8mm.

5. The scroll compressor frame according to claim 3, characterized in that: A mounting groove is formed on the supporting surface, and the mounting groove is located inside the sink. The mounting groove is used to set a sealing assembly so that sealing can be achieved through the sealing assembly when the supporting surface contacts the moving scroll.

6. The scroll compressor frame according to claim 5, characterized in that: The inner circle of the sink is adjacent to the outer edge of the mounting groove.

7. The scroll compressor frame according to claim 5, characterized in that: The mounting groove is an annular mounting groove, and the sealing assembly includes a sealing ring, which is arranged in the mounting groove.

8. The scroll compressor frame according to claim 7, characterized in that: The sealing assembly includes an elastic retaining ring, and the sealing ring and the elastic retaining ring are sequentially arranged in the mounting groove in a direction away from the moving scroll.

9. A scroll compressor, characterized in that: include: A scroll compressor frame according to any one of claims 1 to 8.

10. A refrigeration device, characterized in that: include: The scroll compressor according to claim 9.

Images