CN210423035U - Upper flange, pump body assembly, compressor and air conditioner - Google Patents
Upper flange, pump body assembly, compressor and air conditioner Download PDFInfo
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- CN210423035U CN210423035U CN201921393495.3U CN201921393495U CN210423035U CN 210423035 U CN210423035 U CN 210423035U CN 201921393495 U CN201921393495 U CN 201921393495U CN 210423035 U CN210423035 U CN 210423035U
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Abstract
The utility model provides an upper flange, pump body subassembly, compressor and air conditioner. Wherein go up the flange and include connecting portion, it has a plurality of oil return through-holes to be constructed on the connecting portion, and is a plurality of oil return through-hole's total area of through-hole is Sl, and is a plurality of the biggest first through-hole that is of through-hole area in the oil return through-hole, the through-hole area of first through-hole is Sm, the area of connecting portion is Sn, and 0.25 is less than or equal to Sl/Sn is less than or equal to 0.4, and 1/16 is less than or equal to Sm/Sl is less than or equal. According to the utility model discloses an go up flange, pump body subassembly, compressor and air conditioner, rationally injectd the area of oil return through-hole, reduced the refrigerant of going up flange department and to the rolling up of lubricating oil and inhale the effect, reduce the compressor oil output, guarantee the stability of the lubricated oil level of oil bath, guarantee the rigidity of going up the flange simultaneously, reduce the distortion degree.
Description
Technical Field
The utility model belongs to the technical field of air conditioning, concretely relates to go up flange, pump body subassembly, compressor and air conditioner.
Background
In order to make the refrigerating machine oil of the rotor compressor above the pump body smoothly return to the oil pool, an oil return channel needs to be arranged on an upper flange of the compressor. The prior art is provided with a plurality of oil return channels with large kidney-shaped hole structures. The large kidney-shaped hole has overlarge hole area, so that a large amount of oil in the oil pool can be brought out by an exhaust refrigerant, the liquid level of the oil pool is reduced, and the compressor is easy to lack oil, so that the reliability is reduced; meanwhile, the oil return channel with an excessively large area reduces the connection strength of the connecting part of the upper flange disc surface and the skirt edge and the rigidity of the whole structure, and when the compressor runs at a high speed, the upper flange has serious distortion deformation, so that the vibration and the noise of the compressor are increased.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model is to provide an go up flange, pump body subassembly, compressor and air conditioner, rationally inject the area of oil return through-hole, reduce the refrigerant of going up flange department and inhale the effect to the book of lubricating oil, reduce the compressor oil discharge capacity, guarantee the stability of the lubricated oil level in oil bath, guarantee the rigidity of going up the flange simultaneously, reduce the distortion degree.
In order to solve the problem, the utility model provides an upper flange, including connecting portion, be constructed with a plurality of oil return through-holes on the connecting portion, it is a plurality of oil return through-hole's total area of through-hole is Sl, and is a plurality of through-hole area is the biggest first through-hole in the oil return through-hole, the through-hole area of first through-hole is Sm, the area of connecting portion is Sn, and 0.25 is less than or equal to Sl/Sn and is less than or equal to 0.4, and 1/16 is less than or equal to Sm/Sl and is less than or equal to 1/8.
Preferably, the entity minimum distance between any two adjacent oil return through holes in the plurality of oil return through holes is defined as the length of connection between holes, the maximum value of the length of connection between holes is Lmax, the minimum value of the length of connection between holes is Lmin, and Lmin/Lmax is more than or equal to 0.7.
Preferably, a plurality of oil return through-hole middle through-hole area is the same, and a plurality of oil return through-hole is followed the even interval setting of circumference of upper flange.
Preferably, the oil return through hole is a circular through hole or a kidney-shaped hole.
Preferably, the oil return through hole is inclined from the upper side surface of the upper flange to the lower side surface, and the inclination direction of the oil return through hole is consistent with the rotation direction of the motor rotor.
Preferably, the oil return through hole is provided with a central axis, an included angle theta is formed between the central axis and a tangent line of a reference circle corresponding to the oil return through hole, and theta is more than or equal to 30 degrees and less than or equal to 60 degrees.
Preferably, the number of the oil return through holes is at least 8.
The utility model also provides a pump body subassembly, including foretell last flange.
The utility model also provides a compressor, including foretell pump body subassembly.
The utility model also provides an air conditioner, including foretell compressor.
The utility model provides a pair of go up flange, pump body subassembly, compressor and air conditioner, it is right through the ratio of the total area of the through-hole area of oil return through-hole and the total area of the through-hole of oil return through-hole and connecting portion rationally prescribes a limit to, can reduce the refrigerant of upper flange department and to the entrainment effect of lubricating oil, reduce the compressor oil extraction volume, guarantee the stability of the lubricated oil level in oil bath, guarantee the rigidity of upper flange simultaneously, reduce the distortion degree, and then can reduce the vibration and the noise level of compressor.
Drawings
FIG. 1 is a schematic structural view of a prior art upper flange;
FIG. 2 is a diagram illustrating the deformation simulation effect of an upper flange in the prior art;
fig. 3 is a schematic structural view of an upper flange according to an embodiment of the present invention;
fig. 4 is a schematic structural view of an upper flange according to another embodiment of the present invention;
fig. 5 is a schematic view of an internal structure of a compressor according to an embodiment of the present invention;
fig. 6 is a graph showing the correlation test of the natural frequency and the oil return rate of the pump body assembly after the upper flange of the embodiment of the present invention is adopted;
fig. 7 is a graph illustrating a correlation test between the arrangement of the oil return through holes on the upper flange and the first-order natural frequency of the upper flange according to the embodiment of the present invention;
fig. 8 is a diagram illustrating a deformation simulation effect of the upper flange according to an embodiment of the present invention.
The reference numerals are represented as:
11. a connecting portion; 12. a flange portion; 13. a skirt portion; 14. a bearing neck; 111. an oil return through hole; 111', large kidney shaped holes; 100. a motor assembly; 101. a rotating shaft; 102. a housing.
Detailed Description
Referring to fig. 3 to 8 in combination, according to an embodiment of the present invention, there is provided an upper flange, which includes a flange portion 12, a skirt portion 13, and a connecting portion 11, wherein the flange portion 12 is integrally connected to the skirt portion 13 through the connecting portion 11, the flange portion 12 has a bearing neck portion 14 for movably connecting to a rotating shaft 101 of a pump body assembly, the skirt portion 13 is used for being connected to a casing 102 of a compressor in a matching manner, the connecting portion 11 is configured with a plurality of oil return through holes 111, a total through hole area of the plurality of oil return through holes 111 is Sl, a largest through hole area of the plurality of oil return through holes 111 is a first through hole, a through hole area of the first through hole is Sm, an area of the connecting portion 11 is Sn, Sl/Sn is 0.25 or more and less than 0.4, Sm/Sl is 1/16 or less than or equal to 1/8, it can be understood that through hole areas of the plurality of oil return through holes 111 can be different from each other, the first through holes may be the same as each other, or may be partially the same as each other, that is, only one first through hole may be provided in the plurality of oil return through holes 111, or a plurality of first through holes may be provided, or all of the first through holes may be the first through holes, which is not limited herein. In the technical scheme, the ratio of the area of the through hole of the oil return through hole 111 and the total area of the through hole of the oil return through hole 111 to the total area of the connecting part is reasonably limited, the rolling suction effect of the refrigerant at the upper flange on the lubricating oil can be reduced, the oil discharge amount of the compressor is reduced, the stability of the lubricating oil level of the oil pool is ensured, the rigidity of the upper flange is ensured, the distortion degree is reduced, and the vibration and noise level of the compressor can be reduced.
Fig. 6 shows the inherent frequency and oil return rate correlation test curve chart of the pump body assembly behind the upper flange according to the embodiment of the present invention, and as can be seen from fig. 6, when Sl/Sn is not less than 0.25 and not more than 0.4, the upper flange has a higher oil return rate (solid line in the figure) when being applied to the pump body assembly, and simultaneously, the first-order inherent frequency (dotted line in the figure) of the pump body assembly can be ensured to be higher.
Fig. 7 shows the utility model discloses the experimental curve chart of the correlation between the setting of the oil return through-hole on the upper flange and the first-order natural frequency of upper flange, can know from fig. 7, when 1/16(0.0625) is less than or equal to Sm/Sl is less than or equal to 1/8, can guarantee that the first-order natural frequency of pump body subassembly is more than 1000Hz, can not lead to single oil return through-hole area undersize simultaneously, and influence the backward flow of lubricating oil, and further, it can prevent effectively that the noise that the resonance that is in below 1000Hz of the first-order natural frequency of pump body subassembly can prevent to be difficult to take place with the phenomenon of noise cancelling techniques such as conventional sound absorption cotton more than 1000 Hz.
Fig. 8 shows the utility model discloses the deformation simulation effect picture of last flange, fig. 2 then has given the deformation simulation effect picture of the last flange among the prior art, can obviously reach through the contrast, the last flange among the prior art is because of adopting the waist type hole of large tracts of land, the skirt portion of last flange and the rigidity of connecting portion are inhomogeneous, and overall rigidity is little, and there is more serious distortion in skirt portion, and compressor operation, pump body subassembly have serious swing mode, and the vibration noise of compressor is big, and the utility model discloses an go up the flange and adopt the oil return through-hole structure of a plurality of less areas, under the circumstances of guaranteeing the oil return hole area, the connecting portion rigidity of going up the flange is promoted by a wide margin, goes up the flange deformation and is showing and improves.
Meanwhile, the plurality of round small oil return through holes enable oil return channels to be more and more uniformly distributed, so that the refrigerating machine oil on the upper portion of the pump body can flow back to an oil pool at the bottom of the compressor, and the lubrication and the reliability of the compressor are guaranteed. On the other hand, the area of a single oil return through hole is small, so that the entrainment effect of the refrigerant on the upper part of the pump body on the refrigerating machine oil in the oil pool can be reduced.
Further, the minimum physical distance between any two adjacent oil return through holes in the plurality of oil return through holes 111 is defined as the length of connection between holes, the maximum value of the length of connection between holes is Lmax, and the minimum value of the length of connection between holes is Lmin, that is, the minimum physical distance between any two adjacent oil return through holes in the plurality of oil return through holes 111 may be different, which can provide convenience for space selection for the design of other pore passages of the upper flange, such as an exhaust port, but in order to effectively ensure the structural rigidity of the upper flange, the aforementioned length of connection between holes should not be too large or too small, which will also result in uneven layout of each oil return through hole 111 on the connection portion, and therefore, Lmin/Lmax is limited to be greater than or equal to 0.7, which can ensure that the difference in the length of connection between holes will not be too large, which may cause adverse effects on the local rigidity of the upper flange, as can be seen from FIG. 7, when Lmin/Lmax is greater than or equal to 0.7, the first-order natural frequency of the pump body assembly can be guaranteed to be greater than or equal to 1200 Hz.
Preferably, it is a plurality of through-hole area is the same in the oil return through-hole 111, and is a plurality of oil return through-hole 111 follows the even interval setting of circumference of upper flange, the homogeneity of oil return can be guaranteed to the oil return through-hole 111 that the even interval set up.
The oil return through hole 111 can be a circular through hole, can consider convenient processing, and arrange more evenly, oil return through hole 111 also can adopt waist type hole, can adopt cast mode to form go up the flange, be favorable to reducing go up the processing manufacturing cost of flange.
When the upper flange is applied to a pump body assembly and a compressor, a rotating shaft 101 of a motor assembly 100 in the pump body assembly is movably installed in a bearing neck 14 of the upper flange, when the motor assembly 100 rotates, refrigerant near the motor assembly 100 is driven to rotate and flow, and the rotation direction of the motor assembly 100, that is, the rotation direction of a motor rotor, is substantially consistent with the rotation direction of the refrigerant, as shown by a dotted arrow (the rotation direction of the motor assembly 100) and a solid arrow (the rotation direction of the refrigerant) in fig. 5, at this time, the oil return through hole 111 is inclined from the upper side surface (that is, the side where the bearing neck is located) to the lower side surface (the side opposite to the upper side surface) of the upper flange, and the inclination direction of the oil return through hole 111 is consistent with the rotation direction of the motor rotor, and the rotating refrigerant carrying the oil accumulated on the upper side surface of the upper flange timely flows back to an oil pool at the bottom of the shell, the stability of the liquid level of the oil pool is ensured. Furthermore, the oil return through hole 111 has a central axis, an included angle θ is formed between the central axis and a tangent line of a reference circle corresponding to the oil return through hole 111, θ is greater than or equal to 30 degrees and less than or equal to 60 degrees, and the oil return smoothness is ensured while the oil return through hole 111 is conveniently machined.
Preferably, the number of the oil return through holes 111 is at least 8.
According to the utility model discloses an embodiment still provides a pump body subassembly, including foretell last flange.
According to the utility model discloses an embodiment still provides a compressor, including foretell pump body subassembly, further, the compressor can be the birotor compressor, does to be single rotor or many rotors compressor, even the rolling rotor compressor of various forms such as multi-cylinder doublestage, multi-cylinder multistage, and it can be understood, under certain circumstances, the compressor can also be any one in vertical or horizontal compressor, the utility model discloses do not do the special limitation.
According to the utility model discloses an embodiment still provides an air conditioner, including foretell compressor.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides an upper flange, its characterized in that includes connecting portion (11), be constructed a plurality of oil return through-hole (111) on connecting portion (11), it is a plurality of the total area of through-hole of oil return through-hole (111) is Sl, and is a plurality of the biggest first through-hole that is of through-hole area in oil return through-hole (111), the through-hole area of first through-hole is Sm, the area of connecting portion (11) is Sn, and 0.25 is not less than Sl/Sn and is not less than 0.4, and 1/16 is not less than Sm/Sl and is not less than 1/8.
2. The upper flange according to claim 1, wherein the physical minimum spacing between any two adjacent oil return through holes of the plurality of oil return through holes (111) is defined as an inter-hole connection length, the maximum value of the inter-hole connection length is Lmax, and the minimum value of the inter-hole connection length is Lmin, wherein Lmin/Lmax is more than or equal to 0.7.
3. The upper flange according to claim 1, wherein the plurality of oil return through holes (111) have the same through hole area, and the plurality of oil return through holes (111) are evenly spaced along the circumferential direction of the upper flange.
4. Upper flange according to claim 1, characterized in that the oil return through hole (111) is a circular through hole or a kidney-shaped hole.
5. The upper flange according to claim 1, wherein the oil return through hole (111) is inclined from the upper side to the lower side of the upper flange, and the direction of inclination of the oil return through hole (111) coincides with the direction of rotation of the motor rotor.
6. The upper flange according to claim 5, characterized in that the oil return through hole (111) has a central axis, and the central axis forms an included angle θ with a tangent line of a reference circle corresponding to the oil return through hole (111), and θ is greater than or equal to 30 ° and less than or equal to 60 °.
7. The upper flange according to claim 1, characterized in that the number of oil return through holes (111) is at least 8.
8. A pump body assembly comprising an upper flange, wherein the upper flange is as claimed in any one of claims 1 to 7.
9. A compressor comprising a pump body assembly, characterized in that it is the pump body assembly of claim 8.
10. An air conditioner comprising a compressor, wherein the compressor is the compressor of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921393495.3U CN210423035U (en) | 2019-08-26 | 2019-08-26 | Upper flange, pump body assembly, compressor and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921393495.3U CN210423035U (en) | 2019-08-26 | 2019-08-26 | Upper flange, pump body assembly, compressor and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210423035U true CN210423035U (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921393495.3U Active CN210423035U (en) | 2019-08-26 | 2019-08-26 | Upper flange, pump body assembly, compressor and air conditioner |
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| Country | Link |
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| CN (1) | CN210423035U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388323A (en) * | 2019-08-26 | 2019-10-29 | 珠海格力节能环保制冷技术研究中心有限公司 | Upper flange, pump assembly, compressor and air conditioner |
-
2019
- 2019-08-26 CN CN201921393495.3U patent/CN210423035U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110388323A (en) * | 2019-08-26 | 2019-10-29 | 珠海格力节能环保制冷技术研究中心有限公司 | Upper flange, pump assembly, compressor and air conditioner |
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