Oil baffle structure, rotor assembly and compressor

Abstract

The utility model relates to an oil baffle structure, a rotor assembly and a compressor, the oil baffle structure comprises an oil baffle cover, and the oil baffle cover is a hollow structure with an opening at one end; a plurality of vent holes are formed in the side wall of the oil blocking cover in a penetrating mode, the end, provided with an opening, of the oil blocking cover extends outwards in the radial direction to form a fixing part, and a plurality of rivet holes are formed in the fixing part in the axial direction in a penetrating mode. According to the oil baffle structure, the collision area of an oil-gas mixture and the baffle structure is increased, so that a high-pressure gas-phase refrigerant is separated from refrigerating machine oil more easily, the oil spitting amount of the compressor is effectively improved, and the performance of the compressor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to an oil baffle structure, a rotor assembly and a compressor. Background Art

[0002] At present, in order to improve the high-frequency performance of a compressor, generally, an oil baffle is added to the rotor to improve its oil discharge volume, thereby enhancing its high-frequency performance.

[0003] In the current oil baffle structure, the oil baffle is riveted to the balance weight on the end face of the rotor through rivets to achieve the oil baffle effect. However, since the existing oil baffle is a flat baffle structure with a shaft hole in the center, it is generally fixed on the end face of the balance weight away from the rotor, and the two are completely sealed after being matched with each other, resulting in that the refrigerant cannot be discharged radially from the end face of the balance weight away from the rotor, and can only be discharged from the side without the balance weight and from the middle, thus weakening the refrigerant fluidity and causing the adverse phenomenon of increased oil discharge volume. Summary of the Utility Model

[0004] Based on this, the purpose of the utility model is to overcome the deficiencies of the prior art, and provide an oil baffle structure, a rotor assembly and a compressor. The oil baffle structure is used for being assembled on the rotor assembly; according to the oil baffle structure of the embodiment of the utility model, by increasing the collision area between the oil-gas mixture and the baffle structure, it is made that the high-pressure gaseous refrigerant and the refrigerating oil are more easily separated, thereby effectively improving the oil discharge volume of the compressor and enhancing the performance of the compressor.

[0005] To achieve the above purpose, a first aspect of an embodiment of the utility model provides an oil baffle structure, including an oil baffle cover. The oil baffle cover is a hollow structure with one end open; a plurality of ventilation holes are penetrated and opened on the side wall of the oil baffle cover. One end of the oil baffle cover with an opening extends radially outward to form a fixing part, and a plurality of rivet holes are penetrated and opened along the axial direction on the fixing part.

[0006] Thus, according to the oil baffle structure of the embodiment of the utility model, through the oil baffle cover with one end open, ventilation holes are opened on the side wall of the oil baffle cover, and the fixing part is assembled on the balance weight of the rotor assembly; in this way, the inner cavity structure of the oil baffle cover can effectively increase the collision area between the oil-gas mixture and the oil baffle cover, making it easier for the high-pressure gaseous refrigerant and the refrigerating oil to be separated, thereby effectively improving the oil discharge volume of the compressor and enhancing the performance of the compressor.

[0007] As an implementation manner, the outer diameter of one end of the oil baffle cover with an opening is D, and the outer diameter of the end of the oil baffle cover away from its opening is d, where 0.85D ≤ d ≤ D.

[0008] As an implementation manner, the axial length of the oil baffle cover is H, where 0.2D ≤ H ≤ 0.5D.

[0009] As an implementation manner, the number of the vent holes is m, and the number of the rivet holes is n, where 1 < m ≤ n.

[0010] As an implementation manner, three vent holes are formed through the side wall of the oil baffle cover, and the three vent holes are equally spaced on the side wall of the oil baffle cover respectively; three rivet holes are formed through the fixing part, and the three rivet holes are equally spaced on the fixing part respectively.

[0011] As an implementation manner, the fixing part is in an annular structure, and the fixing part and the oil baffle cover form a cap-shaped structure.

[0012] As an implementation manner, the fixing part is in an arc-shaped structure.

[0013] In the second aspect of the embodiments of the present invention, a rotor assembly is provided, which includes a rotor body and a balance weight, and further includes the oil baffle structure as described in any one of the above embodiments; the balance weight is arranged on the end face of the rotor body, and the fixing part is installed on the end face of the balance weight away from the rotor body. Thus, for the rotor assembly according to the embodiments of the present invention, through the improvement of the oil baffle structure, the collision area between the oil-gas mixture and the oil baffle cover can be effectively increased, so that the high-pressure gaseous refrigerant and the refrigerating oil are more easily separated, and further the oil discharge amount of the compressor is effectively improved, and the performance of the compressor is improved.

[0014] In the third aspect of the embodiments of the present invention, a compressor is provided, which includes the rotor assembly as described in any one of the above embodiments. Thus, for the compressor according to the embodiments of the present invention, through the improvement of the oil baffle structure, the collision area between the oil-gas mixture and the oil baffle cover can be effectively increased, so that the high-pressure gaseous refrigerant and the refrigerating oil are more easily separated, and further the oil discharge amount of the compressor is effectively improved, and the performance of the compressor is improved.

[0015] For better understanding and implementation, the present invention will be described in detail below with reference to the accompanying drawings. Description of the Drawings

[0016] Figure 1 is a perspective view of the oil baffle structure according to the embodiment of the present invention;

[0017] Figure 2 is a front view of the oil baffle structure according to the embodiment of the present invention;

[0018] Figure 3 is a top view of the oil baffle structure according to the embodiment of the present invention;

[0019] Figure 4 is Figure 3 a cross-sectional schematic view taken along the line A-A shown in

[0020] Description of reference numerals:

[0021] 100, oil retaining structure; 110, oil retaining cover; 111, vent hole; 120, fixing part; 121, rivet hole. DETAILED DESCRIPTION

[0022] To further illustrate each embodiment, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention.

[0023] In the current oil baffle structure, the oil baffle plate is riveted to the balance block on the rotor end face by rivets, so as to achieve the effect of oil baffle. However, since the existing oil baffle plate is a planar baffle structure with an axial hole in the center, it is generally fixed on the end face of the balance block away from the rotor, and the two are completely sealed after cooperating with each other, resulting in the refrigerant being unable to be discharged radially from the end face of the balance block away from the rotor, and can only be discharged through the side without the balance block and the middle, resulting in the undesirable phenomenon that the refrigerant flowability is weakened and the oil discharge volume is increased.

[0024] In view of this, the first aspect of an embodiment of the utility model provides an oil retaining structure 100, which is used to be assembled on a rotor assembly; according to the oil retaining structure 100 of the embodiment of the utility model, by increasing the collision area between the oil-gas mixture and the baffle structure, the high-pressure gas-phase refrigerant and the refrigeration oil are easier to separate, thereby effectively improving the oil output of the compressor and improving the performance of the compressor.

[0025] See also Figures 1 to 4 ; The first aspect of the embodiment of the utility model provides an oil baffle structure 100, including an oil baffle cover 110, which is a hollow structure with an opening at one end; a plurality of ventilation holes 111 are penetrated through the side wall of the oil baffle cover 110, and the oil baffle cover 110 is provided with a fixing portion 120 extending radially outward from one end of the opening, and a plurality of rivet holes 121 are penetrated through the fixing portion 120 along the axial direction.

[0026] Therefore, according to the oil baffle structure 100 of the embodiment of the utility model, an oil baffle cover 110 is opened at one end, a vent hole 111 is opened on the side wall of the oil baffle cover 110, and is assembled on the balancing block of the rotor assembly through a fixing portion 120; in this way, the oil baffle cover 110 can effectively increase the collision area between the oil-gas mixture and the oil baffle cover 110 by utilizing its inner cavity structure, so that the high-pressure gas-phase refrigerant and the refrigeration oil are easier to separate, thereby effectively improving the oil output of the compressor and improving the performance of the compressor.

[0027] In some embodiments of the present utility model, the outer diameter of one end of the oil baffle 110 with an opening is D, and the outer diameter of the end of the oil baffle 110 away from its opening is d, where 0.85D ≤ d ≤ D. Further, the axial length of the oil baffle 110 is H, and 0.2D ≤ H ≤ 0.5D. With such a structural design, the axial length of the oil baffle 110 is not too high, which can not only meet the requirement of increasing the collision area between the oil-gas mixture and the oil baffle 110, but also avoid the problem of large occupied space in the axial direction when the oil baffle 110 and the rotor assembly are assembled and then installed into the compressor interior.

[0028] In some embodiments of the present utility model, the number of ventilation holes 111 is m, and the number of rivet holes 121 is n, where 1 < m ≤ n.

[0029] In some embodiments of the present utility model, the fixing part 120 is a circular ring structure, and the fixing part 120 and the oil baffle 110 form a cap-like structure.

[0030] In some embodiments of the present utility model, the fixing part 120 is an arc-shaped structure. With such a structural design, the shape of the fixing part 120 can be adapted to the shape of the balance weight.

[0031] Next, refer to Figures 1 to 4 Describe in detail the oil baffle structure 100 according to an alternative embodiment of the present utility model. It should be understood that the following description is only an exemplary illustration and should not be construed as a limitation to the present utility model.

[0032] As Figures 1 to 4As shown, the oil baffle structure 100 of this embodiment includes an oil baffle cover 110. The oil baffle cover 110 is a hollow structure with one end open, and its internal chamber can be used as a collision chamber for the oil-gas mixture. Three ventilation holes 111 are penetrated through the side wall of the oil baffle cover 110, and the three ventilation holes 111 are equally spaced on the side wall of the oil baffle cover 110 respectively. One end of the oil baffle cover 110 with an opening extends radially outward to form a fixing part 120. Three rivet holes 121 are penetrated through the fixing part 120 along the axial direction, and the three rivet holes 121 are equally spaced on the fixing part 120 respectively. The fixing part 120 is a circular ring structure, and the fixing part 120 and the oil baffle cover 110 form a cap-like structure. In addition, in this embodiment, the outer diameter of the end of the oil baffle cover 110 with an opening is D, and the outer diameter of the end of the oil baffle cover 110 far from its opening is d, and d = 0.85D; further, the axial length of the oil baffle cover 110 is H, and H = 0.2D. Thus, according to the oil baffle structure 100 of this embodiment, when the oil-gas mixture comes out from the end face of the rotor assembly, it enters the inside of the oil baffle cover 110 from the opening of the oil baffle cover 110 for collision. In this way, the gaseous refrigerant is discharged from the ventilation holes 111 on the side wall of the oil baffle cover 110, while the refrigeration oil slides down from the inner side wall of the oil baffle cover 110. The inner wall of the oil baffle cover 110 can make it easier to separate the high-pressure gaseous refrigerant from the refrigeration oil, thereby effectively improving the oil discharge amount of the compressor and enhancing the performance of the compressor.

[0033] The following details the oil baffle structure 100 according to an alternative embodiment of the present invention. It should be understood that the following description is only illustrative and should not be construed as a limitation of the present invention.

[0034] The oil baffle structure 100 of this embodiment includes an oil baffle cover 110. The oil baffle cover 110 is a hollow structure with one end open, and its internal chamber can be used as a collision chamber for the oil-gas mixture. Three ventilation holes 111 are penetrated through the side wall of the oil baffle cover 110, and the three ventilation holes 111 are equally spaced on the side wall of the oil baffle cover 110 respectively. One end of the oil baffle cover 110 with an opening extends radially outward to form a fixing part 120. Three rivet holes 121 are penetrated through the fixing part 120 along the axial direction, and the three rivet holes 121 are equally spaced on the fixing part 120 respectively. The fixing part 120 is a circular ring structure, and the fixing part 120 and the oil baffle cover 110 form a cap-like structure. In addition, in this embodiment, the outer diameter of the end of the oil baffle cover 110 with an opening is D, and the outer diameter of the end of the oil baffle cover 110 far from its opening is d, and d = D; further, the axial length of the oil baffle cover 110 is H, and H = 0.5D.

[0035] The following details the oil baffle structure 100 according to an alternative embodiment of the present invention. It should be understood that the following description is only illustrative and should not be construed as a limitation of the present invention.

[0036] The oil baffle structure 100 of this embodiment includes an oil baffle cover 110. The oil baffle cover 110 is a hollow structure with one end open, and its internal chamber can serve as a collision chamber for the oil-gas mixture. Two ventilation holes 111 are penetrated through the side wall of the oil baffle cover 110, and the two ventilation holes 111 are symmetrically distributed on the side wall of the oil baffle cover 110 respectively. One end of the oil baffle cover 110 with an opening extends radially outward to form a fixing part 120. Three rivet holes 121 are penetrated through the fixing part 120 along the axial direction, and the three rivet holes 121 are equally spaced on the fixing part 120 respectively. The fixing part 120 is an arc-shaped structure. In addition, in this embodiment, the outer diameter of the end of the oil baffle cover 110 with an opening is D, and the outer diameter of the end of the oil baffle cover 110 far from its opening is d, and d = 0.9D; further, the axial length of the oil baffle cover 110 is H, and H = 0.35D.

[0037] The second aspect of the embodiment of the present invention provides a rotor assembly, which includes a rotor body and a balance weight, and also includes the oil baffle structure 100 of any one of the above embodiments; the balance weight is arranged on the end face of the rotor body, and the fixing part 120 is installed on the end face of the balance weight far from the rotor body. Thus, for the rotor assembly according to the embodiment of the present invention, through the improvement of the oil baffle structure 100, the collision area between the oil-gas mixture and the oil baffle cover 110 can be effectively increased, so that the high-pressure gaseous refrigerant and the refrigeration oil are more easily separated, thereby effectively improving the oil discharge volume of the compressor and improving the performance of the compressor.

[0038] The third aspect of the embodiment of the present invention provides a compressor, which includes the rotor assembly of any one of the above embodiments. Thus, for the compressor according to the embodiment of the present invention, through the improvement of the oil baffle structure 100, the collision area between the oil-gas mixture and the oil baffle cover 110 can be effectively increased, so that the high-pressure gaseous refrigerant and the refrigeration oil are more easily separated, thereby effectively improving the oil discharge volume of the compressor and improving the performance of the compressor.

[0039] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0040] The above embodiments only illustrate several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the oil retaining structure 100, the rotor assembly and the compressor of the utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all fall within the protection scope of the present utility model.

Claims

1. An oil retaining structure, characterized in that: It includes an oil baffle cover, which is a hollow structure with an opening at one end; a plurality of ventilation holes are penetrated through the side wall of the oil baffle cover, and a fixing portion is radially extended outward from the open end of the oil baffle cover, and a plurality of rivet holes are penetrated through the fixing portion along the axial direction.

2. The oil retaining structure according to claim 1, characterized in that: The outer diameter of one end of the oil deflector cover provided with an opening is D, and the outer diameter of the end of the oil deflector cover away from the opening is d, and 0.85D≤d≤D.

3. The oil retaining structure according to claim 2, characterized in that: The axial length of the oil retaining cover is H, 0.2D≤H≤0.5D.

4. The oil retaining structure according to claim 1, characterized in that: The number of the ventilation holes is m, the number of the rivet holes is n, and 1<m≤n.

5. The oil retaining structure according to claim 4, characterized in that: The side wall of the oil baffle cover is provided with three ventilation holes, which are evenly spaced on the side wall of the oil baffle cover; the fixing portion is provided with three rivet holes, which are evenly spaced on the fixing portion.

6. The oil retaining structure according to claim 1, characterized in that: The fixing portion is a circular ring structure, and the fixing portion and the oil baffle cover form a cap-shaped structure.

7. The oil retaining structure according to claim 1, characterized in that: The fixing portion is an arc-shaped structure.

8. A rotor assembly, characterized in that: It comprises a rotor body, a balancing block, and also comprises the oil retaining structure as claimed in any one of claims 1 to 7; the balancing block is arranged on the end face of the rotor body, and the fixing part is installed on the end face of the balancing block away from the rotor body.

9. A compressor, characterized in that: Comprising a rotor assembly as claimed in claim 8.

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