Integrated suction and oil baffle, compressor and fluid machinery apparatus

Abstract

The present disclosure relates to an integrated piece of suction seal and oil deflector, a compressor and a fluid machinery apparatus. The integrated piece of suction seal and oil deflector is disposed between a rotor and a rotor bearing of the compressor, such that the suction seal abuts a rotor suction end face of a compressor body and the oil deflector abuts the rotor bearing. The integrated piece of suction seal and oil deflector comprises a male integrated piece and a female integrated piece. The male integrated piece comprises a male suction seal and a male oil deflector joined together by a male connecting portion. The female integrated piece comprises a female suction seal and a female oil deflector joined together by a female connecting portion. The male connecting portion and the female connecting portion are fixedly abutted to each other, such that after assembly, the male suction seal and the female suction seal abut the rotor suction end face of the compressor body in the same plane. The integrated piece of suction seal and oil deflector according to the present disclosure can block the compressor rotor and the rotor bearing, at least partially seal the rotor suction end face, and / or ensure the presence of chilled oil at the rotor bearing.

Description

Technical Field

[0001] This disclosure relates to the field of fluid machinery equipment, and more particularly to an integrated suction seal and oil baffle, a compressor having the integrated assembly, and fluid machinery equipment. The integrated suction seal and oil baffle can be adapted to provide suction sealing and oil level control for compressors such as screw compressors. Background Technology

[0002] In screw compressors, the suction sealing device is divided into radial sealing structure and axial sealing structure. For axial sealing structure, such as... Figure 1A and Figure 1B As shown, the conventional axial sealing structure 10 is a separate component connected to the suction end face 24 of the compressor body 20. Because a sharp corner 22 exists at the intersection of the two rotor chambers of the compressor body 20, the axial sealing structure 10 needs to be designed with a clearance hole 12 to avoid the sharp corner 22 (e.g., ...). Figure 1C (As shown). Therefore, there is a gap 30 between the clearance hole 12 and the compressor body 20, which causes leakage when the compressor draws in air, resulting in poor suction sealing performance and affecting the reliability of the compressor.

[0003] Furthermore, in screw compressors, bearings rely heavily on refrigerant oil for lubrication and cooling. During operation, sufficient refrigerant oil must always be present around the bearings to ensure the reliable operation of the rotating mechanism (e.g., the compressor rotor) and the compressor as a whole. Especially during the initial compressor start-up and before starting after a long period of inactivity, refrigerant oil should be present around the bearings to ensure they are in a state of "oil lubrication and cooling" during operation. However, excessive oil can hinder rotor rotation at high speeds, requiring additional "refrigerant oil churning work" on top of the normal work done, which is undesirable. In short, refrigerant oil needs to be present around the bearings in the compressor at all times, but not excessively. Therefore, it is necessary to ensure an appropriate amount of refrigerant oil around the bearings to guarantee reliable and efficient compressor operation. Summary of the Invention

[0004] One objective of this disclosure is to solve the leakage problem caused by incomplete air intake sealing in existing air intake sealing devices.

[0005] Another objective of this disclosure is to address the problem of oil retention in compressors.

[0006] Another objective of this disclosure is to solve the problem of compressor oil quantity control.

[0007] Given the state of the prior art, the overall concept of this disclosure is to integrate the suction seal plate and the oil baffle plate into a single integrated component, which is positioned between the compressor rotor and the rotor bearing. This allows the suction seal plate to conform to the rotor suction end face of the compressor body, and the oil baffle plate to abut against the rotor bearing. This achieves reliable sealing of the rotor suction end face of the compressor body and / or ensures the presence of a suitable amount of refrigerant oil at the rotor bearing. In this way, at least one of the aforementioned technical problems is solved.

[0008] In one aspect, this disclosure provides an integrated assembly of a suction seal plate and an oil baffle plate, the integrated assembly being disposed between the rotor and rotor bearing of a compressor, such that the suction seal plate conforms to the suction end face of the compressor body's rotor and the oil baffle plate abuts against the rotor bearing. The integrated assembly of the suction seal plate and oil baffle plate includes a male integrated assembly and a female integrated assembly. The male integrated assembly includes a male suction seal plate and a male oil baffle plate joined together by a male connector. The female integrated assembly includes a female suction seal plate and a female oil baffle plate joined together by a female connector. The male and female connectors are fixed together in a close fit, such that after assembly, the male and female suction seal plates conform to the suction end face of the compressor body's rotor in the same plane.

[0009] Because the male and female components are constructed separately, the male and female suction seal plates are also separate structures that can be fitted to the rotor suction end face, eliminating the need for clearance holes in existing technologies and thus preventing leakage at the rotor suction end face. Furthermore, this integrated suction seal plate and oil baffle plate structure also isolates the compressor rotor and rotor bearings and at least partially blocks the rotor suction end face through the suction seal plate, and allows refrigerant oil to be stored at the rotor bearings through the oil baffle plate.

[0010] In one or more embodiments, both the male and female suction seal plates are arc-shaped plates, and the arc-shaped plates of the male and female suction seal plates are arranged adjacent to each other in the same plane to at least partially block the rotor suction end face. This facilitates the partial blocking of the rotor suction end face of the compressor body by the male and female suction seal plates.

[0011] In one or more embodiments, the male suction seal includes a first male arcuate portion, and the female suction seal includes a first female arcuate portion, to match the corresponding structure at the sharp corner of the compressor body. This ensures reliable sealing of the compressor.

[0012] In one or more embodiments, the male intake seal includes a second male arcuate portion whose shape conforms to the male rotor shaft, and / or the female intake seal includes a second female arcuate portion whose shape conforms to the female rotor shaft. This prevents interference with the movement of the male rotor.

[0013] In one or more embodiments, the male suction seal plate further includes a planar male mating surface to fit snugly against the male rotor suction end face, and the female suction seal plate includes a planar female mating surface to fit snugly against the female rotor suction end face. This ensures reliable sealing of the compressor.

[0014] In one or more embodiments, both the male connector and the female connector are provided with at least one connection hole, and are detachably fixed together by a connector passing through the connection hole.

[0015] In one or more embodiments, the connecting hole is a threaded hole, and the connector is a threaded connector. Thus, a detachably connectable male and female assembly is provided.

[0016] In one or more embodiments, the male connector and the female connector are fixed together by adhesive or welding. This provides a permanently connected male and female assembly.

[0017] In one or more embodiments, the male intake seal and the male oil baffle are arranged parallel to each other, with the male connector extending vertically between the male intake seal and the male oil baffle; similarly, the female intake seal and the female oil baffle are arranged parallel to each other, with the female connector extending vertically between the female intake seal and the female oil baffle. This provides male and female integrated components that are easy to manufacture.

[0018] In one or more embodiments, both the male and female oil baffles are in the form of partially annular rings with a central hole. This provides an oil-blocking function for the rotor bearing.

[0019] In one or more embodiments, both the male and female oil baffles have a first surface that at least partially abuts against the compressor body and the outer ring of the corresponding rotor bearing, and a second surface opposite to the first surface. Thus, the male and female oil baffles reliably abut against the corresponding rotor bearing to achieve the oil-blocking function.

[0020] In one or more embodiments, the first surfaces of the male and female oil baffles are provided with recesses. This prevents the male and female oil baffles from contacting the inner rings of the corresponding rotor bearings and interfering with their operation.

[0021] In one or more embodiments, the diameter of the central hole of the male and female oil baffles is set to be less than or equal to the outer diameter of the inner ring of the corresponding rotor bearing, but greater than the diameter of the corresponding rotor shaft. Thus, the central hole does not obstruct the movement of the female rotor shaft and enables the oil-blocking function.

[0022] In one or more embodiments, both the male and female oil baffles are equipped with an oil level control mechanism. This mechanism ensures that an appropriate amount of refrigerant oil is present at the rotor bearing.

[0023] In one or more embodiments, both the male and female oil baffles are provided with an oil quantity control mechanism, which is configured such that the diameter of the central hole of the male and female oil baffles is approximately equal to the outer diameter of the inner ring of the corresponding bearing. This provides a first method of oil quantity control.

[0024] In one or more embodiments, the oil level control mechanism includes an oil control orifice for controlling the maximum level of the refrigeration oil. This provides a second method of oil level control.

[0025] In one or more embodiments, the oil control holes of both the male and female oil baffles are configured such that the lowest edge of the corresponding oil control hole is equal to or slightly higher than the highest edge of the lowest rolling element of the corresponding rotor bearing. Thus, the oil control holes are configured to ensure that the amount of refrigerant oil just submerges the lowest rolling element of the rotor bearing, thereby sealing in an appropriate amount of refrigerant oil.

[0026] In one or more embodiments, the oil control holes of the male and female oil baffles are located on either side in the horizontal direction relative to the lowermost rolling element of the respective rotor bearing. This provides possible locations for the oil control holes.

[0027] In one or more embodiments, the horizontal distance between the central axes of the oil control holes of the male and female oil baffles and the central axis of the lowermost rolling element of the corresponding rotor bearing is less than the radius of the central hole of the corresponding oil baffle. This provides a possible location for the oil control holes.

[0028] In one or more embodiments, the male and female suction seals are embedded in the compressor body, while the male and female oil baffles are fixed to the compressor body by fasteners. Thus, the integrated suction seal and oil baffle are securely assembled to the compressor body in a simple manner.

[0029] On the other hand, this disclosure provides a compressor that includes an integrated suction seal and an oil baffle as described in this disclosure. Thus, the compressor can operate reliably and efficiently.

[0030] On the other hand, this disclosure provides a fluid machinery device including a compressor according to this disclosure. Thus, the fluid machinery device can operate reliably and efficiently. Attached Figure Description

[0031] This disclosure will be more readily understood through the following detailed description taken in conjunction with the accompanying drawings, wherein like reference numerals denote like elements. The drawings are schematic and not restrictive. Elements in the drawings are not necessarily drawn to scale; for example, elements may be enlarged for illustrative purposes or may be scaled down to maintain clarity and ease of understanding. In the drawings:

[0032] Figure 1A A schematic front view of a prior art air intake seal is shown;

[0033] Figure 1B A schematic front view of a prior art intake seal plate mounted on a compressor is shown.

[0034] Figure 1C Schematic illustration Figure 1B An enlarged view of the portion indicated by A in the middle;

[0035] Figure 2A A perspective view of the integrated intake seal and oil baffle according to the present disclosure is shown schematically.

[0036] Figure 2B A schematic front view of the integrated intake seal and oil baffle according to this disclosure is shown.

[0037] Figure 2C A schematic left-side view of the integrated intake seal and oil baffle according to this disclosure is shown.

[0038] Figure 3A The schematic diagram shows a front view of the integrated intake seal and oil baffle according to the present disclosure assembled in a compressor;

[0039] Figure 3B The schematic diagram shows a side sectional view of the integrated intake seal and oil baffle according to the present disclosure assembled in a compressor, cut along a vertical plane passing through the male rotor shaft.

[0040] Figure 4A A schematic diagram of a first example of an oil quantity control mechanism for an integrated intake seal and oil baffle according to the present disclosure is shown; and

[0041] Figure 4B A schematic diagram of a second example of an oil quantity control mechanism of an integrated intake seal and oil baffle according to the present disclosure is shown. Detailed Implementation

[0042] The present disclosure will now be described with reference to the accompanying drawings, which illustrate several embodiments of the present disclosure. However, it should be understood that the present disclosure can be presented in many different ways and is not limited to the embodiments described below. The embodiments described below are intended to make the disclosure more complete and to fully illustrate the scope of protection of the present disclosure to those skilled in the art. It should be understood that in all the drawings, the same reference numerals denote the same elements.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. For the sake of brevity and / or clarity, well-known functions or structures may not be described in detail. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The terms “comprising” and “having”, and any derivatives thereof, in the specification, claims, and accompanying drawings of this disclosure are intended to cover non-exclusive inclusion.

[0044] In the description of the embodiments disclosed herein, the terms “first”, “second”, etc., are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.

[0045] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this disclosure. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0046] In the description of the embodiments of this disclosure, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships, such as A and / or B, which can represent: A existing alone, A and B existing simultaneously, and B existing alone.

[0047] In the description of the embodiments of this disclosure, the terms "inner", "outer", "horizontal", "vertical", "parallel", and "perpendicular" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this disclosure and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of this disclosure.

[0048] In the description of the embodiments of this disclosure, unless otherwise expressly specified and limited, the terms "installation," "assembly," and "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0049] As is known, suction seals in screw compressors act as a barrier between the rotor and the rotor bearing, preventing the bearing from contacting the rotor's suction face during operation and causing scratches. Therefore, existing suction seals are typically placed between the compressor rotor and the rotor bearing within the compressor housing, partially blocking the rotor's suction face. Figure 1A-1C As shown, due to the presence of a sharp corner 22 at the intersection of the two rotor chambers of the compressor body 20, the existing suction seal plate 10 needs to avoid this sharp corner 22. Therefore, the suction seal plate 10 is typically designed with two arc segments converging at the sharp corner 22 at its lower part. However, when machining these two arc segments of the suction seal plate 10, a tool clearance space is required at the final confluence of the two arc segments. Typically, an upward-cut clearance hole 12 is used, the diameter of which depends on the diameter of the tool used to machine the two arc segments. In mass production, to improve efficiency, the tool diameter is generally not less than 8 mm, and toolpath simulation shows that the clearance hole diameter needs to be above 5 mm. For screw compressors, the clearance values ​​at various points often need to be controlled within the range of 0.01 to 0.1 mm. Therefore, if the clearance caused by machining the clearance hole is too large, leakage will occur during compressor suction, resulting in poor suction sealing performance and affecting compressor performance. Therefore, it is necessary to eliminate the clearance hole 12.

[0050] In addition, a certain amount of refrigerant oil needs to be present around the rotor bearing of the compressor to ensure that the rotor bearing is in a state of "oil lubrication and cooling" when it is in motion. Therefore, an oil baffle needs to be installed at the rotor bearing to seal a certain amount of refrigerant oil.

[0051] In view of the current state of the technology, this disclosure envisions integrating the suction seal plate and the oil baffle plate into a single integrated component, which is then positioned between the compressor rotor and the rotor bearing. This not only achieves reliable sealing of the rotor suction end face of the compressor body but also ensures the presence of a certain amount of refrigerant oil at the rotor bearing.

[0052] The technical solutions of this disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0053] Figures 2A to 2C Perspective view, front view and side view of the integrated intake seal and oil baffle according to the present disclosure are shown schematically. Figure 3A and Figure 3B The front view and side sectional view schematically illustrate the integrated assembly of the intake seal and oil baffle according to the present disclosure in a compressor.

[0054] Reference Figure 2A and 2BThe integrated suction seal and oil baffle 1000 includes an integrated oil baffle and suction seal. The integrated suction seal and oil baffle can be used in compressors such as screw compressors. The integrated suction seal and oil baffle can be disposed between the compressor rotor and the rotor bearing of the compressor housing, such that the suction seal conforms to the rotor suction end face of the compressor housing and the oil baffle is mounted to the compressor housing against the rotor bearing. Thus, the integrated suction seal and oil baffle can isolate the compressor rotor from the rotor bearing, at least partially block the rotor suction end face of the compressor housing, and / or ensure the presence of refrigerant oil at the rotor bearing. Specifically, the suction seal is embedded within the housing of the compressor housing 20 and conforms to the rotor suction end face, and the oil baffle is fixed to the compressor housing by fasteners (such as screws). Since the suction seal plate does not require fasteners for installation, and only the oil baffle is fixed to the compressor body with fasteners, the integrated suction seal plate and oil baffle 1000 of this disclosure achieves its stable assembly in a simple manner.

[0055] The intake seal and oil baffle assembly 1000 includes a male assembly 100 and a female assembly 200. The male assembly 100 and the female assembly 200 have similar constructions. The male assembly 100 and the female assembly 200 are configured to be fixed together in a close fit. The male assembly 100 includes a male oil baffle 110 and a male intake seal 120 joined together by a male connector 130. The female assembly 200 includes a female oil baffle 210 and a female intake seal 220 joined together by a female connector 230. The male connector 130 and the female connector 230 are fixed together in a close fit such that, after assembly, the male intake seal 120 and the female intake seal 220 abut against the rotor intake end face of the compressor body in the same plane. At this time, the male and female oil baffles can abut against the rotor bearing in another plane parallel to the same plane. The male oil baffle 110 and the female oil baffle 210 can be respectively fixed to the compressor body by fasteners (such as multiple screws) (see...). Figure 3A ).exist Figure 2A and Figure 2B In the example, the male baffle 110 and the female baffle 210 each have four connection holes. The male baffle 110 and the male suction seal 120 may be arranged parallel to each other. The female baffle 210 and the female suction seal 220 may be arranged parallel to each other. The male connector 130 may be configured to extend vertically between the male suction seal 120 and the male baffle 110, and the female connector 230 may be configured to extend vertically between the female suction seal 220 and the female baffle 210. The male connector 130 and the female connector 230 may be detachably connected together by means of a connector 300. The connector 300 may be a threaded connector, such as a screw or bolt. The male connector 130 and the female connector 230 may also be glued or welded together.

[0056] Since the male component 100 and the female component 200 are constructed separately, the male suction seal plate 120 and the female suction seal plate 220 are also constructed separately and can be fitted to the rotor suction end face. This eliminates the need for clearance holes required by the cutting tools used in the prior art for machining integrated suction seal plates, thereby avoiding leakage at the rotor suction end face.

[0057] like Figure 2B As shown, the male suction seal 120 is in the form of an arc-shaped plate. The male suction seal 120 is embedded within the compressor housing and fits against the suction end face of the male rotor. Furthermore, the male suction seal 120 is positioned inside the male rotor shaft of the compressor to facilitate partial sealing of the suction end face of the male rotor of the compressor housing 20. In this document, the "inner side" of the compressor rotor shaft refers to the side between the adjacent male and female rotor shafts; the side opposite to the inner side is the outer side. The male suction seal 120 includes a first male arc-shaped portion 124 and a second male arc-shaped portion 122. The first male arc-shaped portion 124 is configured to match the corresponding structure at the pointed corner 22 of the compressor housing 20. The arc shape of the second male arc-shaped portion 122 conforms to the shape of the male rotor shaft to avoid interfering with the movement of the male rotor. The male intake seal 120 also includes a planar male engagement surface 126 configured to fit snugly against the intake end face of the male rotor. The male engagement surface 126 extends parallel to the second surface 114 of the male baffle 110. The male connection portion 130 extends perpendicularly from the second surface 114 of the male baffle 110 to the male engagement surface 126 of the male intake seal 120.

[0058] The male oil baffle 110 is in the form of a partially annular shape with a central hole. The diameter of the central hole in the male oil baffle 110 can be set to be less than or equal to the outer diameter of the inner ring 420 of the male rotor bearing, but greater than the diameter of the male rotor shaft. Therefore, the central hole does not obstruct the movement of the male rotor shaft and can achieve the oil-blocking function. See also... Figure 3B The male oil baffle 110 has a first surface 112 that can at least partially abut against the compressor body and the outer ring 410 of the male rotor bearing 400, and a second surface 114 opposite to the first surface. The first surface 112 of the male oil baffle 110 may also be provided with a recess 116 to avoid contact with the inner ring 420 of the male rotor bearing and thus avoid interfering with its operation, and also to reduce weight.

[0059] Similarly, as Figure 2BAs shown, the female suction seal 220 is in the form of an arc-shaped plate. The female suction seal 220 is embedded within the compressor housing and fits against the female rotor suction end face. Furthermore, the female suction seal 220 is positioned inside the compressor's female rotor shaft to facilitate partial sealing of the female rotor suction end face on the compressor housing 20. The female suction seal 220 includes a first female arc-shaped portion 224 and a second female arc-shaped portion 222. The first female arc-shaped portion 224 is configured to match the corresponding structure at the pointed corner 22 of the compressor housing 20. The arc shape of the second female arc-shaped portion 222 conforms to the shape of the male rotor shaft to avoid interfering with the movement of the female rotor. The female suction seal 220 also includes a planar female mating surface 226, which is configured to fit snugly against the female rotor suction end face. The male mating surface 126 and the female mating surface 226 of the planar male mating surface are arranged adjacent to each other on the same plane and achieve a close contact with the corresponding rotor intake end face to seal the rotor intake end face at least on the inside. The female mating surface 226 extends parallel to the second surface of the female oil baffle 210. The female connection portion 230 extends perpendicularly from the second surface of the female oil baffle 210 to the female mating surface 226 of the female gas seal plate 220.

[0060] The female oil baffle 210 is a partially annular shape with a central hole. The diameter of the central hole of the female oil baffle 210 can be set to be less than or equal to the outer diameter of the inner ring of the female rotor bearing, but greater than the diameter of the female rotor shaft. Therefore, the central hole does not obstruct the movement of the female rotor shaft and can achieve the oil-blocking function. The female oil baffle 210 has a first surface that can at least partially abut against the compressor body and the outer ring of the female rotor, and a second surface opposite to the first surface. The first surface of the female oil baffle 210 may have a recess to avoid contact with the inner ring of the female rotor bearing and thus prevent interference with its operation, and also to reduce weight.

[0061] The male connector 130 has opposing male inner and male outer surfaces, the male inner surface facing the central hole of the male baffle 110. The female connector 230 has opposing female inner and female outer surfaces, the female inner surface facing the central hole of the female baffle 210. The male outer surface of the male connector 130 and the female outer surface of the female connector 230 abut against each other. The male connector 130 and the female connector 230 may also be provided with at least one connecting hole for fastening together by a connector 300. Figure 2A and 2BIn the example shown, the male connector 130 and the female connector 230 each have a corresponding threaded hole. The male connector 130 and the female connector 230 are fastened together by means of a threaded fastener. The male suction seal 120 and the female suction seal 220 are located in the same plane after assembly, closely fitting the suction end face of the rotor. Because the male connector 130 and the female connector 230 fit together, and the first male arcuate portion 124 of the male suction seal 120 and the first female arcuate portion 224 of the female suction seal 220 respectively match the corresponding structures at the sharp corners of the compressor body (see...). Figure 3A This design allows for a tight fit between the male suction seal plate 120 and the female suction seal plate 220 and the compressor body, eliminating the need for the clearance hole 12 found in existing technologies. Since the only gap exists due to the fit between the male connector 130 and the female connector 230, and this gap is on the order of 0.01 to 0.1 mm, far smaller than the clearance hole diameter of 5 mm or more in existing technologies, the leakage area of ​​this gap is significantly smaller than the leakage area of ​​the clearance hole 12 in existing technologies. This results in a better seal on the rotor suction end face.

[0062] The oil baffle may be equipped with an oil level control mechanism to maintain an appropriate amount of refrigerant oil around the rotor bearing. Specifically, the male oil baffle 110 and the female oil baffle 210 may be configured to ensure an appropriate amount of refrigerant oil around the rotor bearing by having an appropriately sized central hole. Furthermore, the male oil baffle 110 and the female oil baffle 210 may each be equipped with an oil level control mechanism, such as an oil control hole, to ensure an appropriate oil level.

[0063] The design principle of the male oil baffle 110 and the female oil baffle 210 is to ensure the presence of refrigerant oil and to control the maximum liquid level of the refrigerant oil. The maximum liquid level needs to ensure that the amount of refrigerant oil just submerges the lowest rolling element of the rotor bearing, and the liquid level plane is approximately tangent to the lowest edge of the inner ring of the bearing.

[0064] To meet this requirement, in one embodiment, the oil quantity control mechanism can be configured to achieve this by designing the diameter of the central holes of the male baffle 110 and the female baffle 210. For example... Figure 4A As shown, when the diameter D of the central hole of the male oil baffle 110 and the female oil baffle 210 is equivalent to the outer diameter d of the inner ring of the corresponding bearing, the liquid level control of the refrigeration oil can be satisfied. In other words, in this case, the oil level control mechanism can be the central hole of the male oil baffle 110 and the central hole of the female oil baffle 210.

[0065] In actual design, considering the assembly process, it is difficult to ensure that the diameter D of the center hole of the male oil baffle 110 and the female oil baffle 210 is equivalent to the outer diameter d of the inner ring of the bearing. In this case, to meet the oil quantity control requirements, in another embodiment, the oil quantity control mechanism can be an oil control hole located at an appropriate position on the oil baffle. The shape of the oil control hole is not limited to circular; it can be any shape of through opening, as long as it ensures that no excessive refrigerant oil remains at the bearing. Specifically, as shown... Figure 4B As shown, the oil quantity control mechanism may include a male oil control hole 118 provided on the male oil baffle 110 and a female oil control hole 218 provided on the female oil baffle 210.

[0066] The following explanation uses the male oil control port 118 as an example. The female oil control port 218 can be set similarly and will not be detailed further. For example... Figure 4B As shown, the male rotor bearing has a cylindrical roller bearing rolling element 430 located at the bottom. The height of the oil control hole 118 of the male oil baffle 110 can be designed with the cylindrical roller bearing rolling element 430 as a reference. The lowermost edge of the oil control hole 118 is equal to or slightly higher than the uppermost edge of the cylindrical roller bearing rolling element 430. The oil control hole 118 can be located on either side of the cylindrical roller bearing rolling element 430 in the horizontal direction. The horizontal distance between the central axis of the oil control hole 118 and the central axis of the cylindrical roller bearing rolling element 430 is less than the radius of the central hole of the male oil baffle 110. Thus, the refrigerant oil can submerge the lowermost cylindrical roller bearing rolling element to facilitate the lubrication and cooling of the internal bearings of the compressor, but the amount of oil is not excessive to avoid hindering the rotation of the rotor when it rotates at high speed, thus avoiding the need for additional "refrigerant oil stirring work" in addition to the normal work of the rotor.

[0067] Thus, the integrated suction seal plate and oil baffle plate according to this disclosure ensures that an appropriate amount of refrigerant oil is present at the rotor bearing through the oil control holes provided by the male oil baffle plate 110 and the female oil baffle plate 210.

[0068] This disclosure also relates to a compressor that includes an integrated suction seal and an oil baffle as described in this disclosure. Thus, the compressor can operate reliably and efficiently.

[0069] This disclosure also relates to a fluid machinery device including the aforementioned compressor. Since the compressor of this disclosure can improve energy efficiency, the fluid machinery device of this disclosure also has the aforementioned beneficial technical effects.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An integrated assembly of a suction seal plate and an oil baffle plate, wherein the integrated assembly is disposed between the rotor and the rotor bearing of a compressor, such that the suction seal plate fits against the suction end face of the compressor body and the oil baffle plate abuts against the rotor bearing. Its features are, The integrated assembly of the air intake seal and the oil baffle includes: Anode assembly, the anode assembly comprising a anode suction seal and anode oil baffle joined together by anode connectors; and A female integrated component, the female integrated component comprising a female air intake seal and a female oil baffle plate joined together by a female connector; The male connector and the female connector are fixed together so that after assembly, the male suction seal plate and the female suction seal plate are attached to the rotor suction end face of the compressor body in the same plane.

2. The integrated assembly of the air intake seal plate and the oil baffle plate according to claim 1, characterized in that, Both the male and female intake sealing plates are arc-shaped plates, and the arc-shaped plates of the male and female intake sealing plates are arranged adjacent to each other in the same plane to at least partially block the intake end face of the rotor.

3. The integrated assembly of the air intake seal plate and the oil baffle plate according to claim 1, characterized in that, The male suction seal includes a first male arc-shaped portion, and the female suction seal includes a first female arc-shaped portion, to match the corresponding structure at the sharp corner of the compressor body.

4. The integrated assembly of the air intake seal plate and the oil baffle plate according to claim 3, characterized in that, The male intake seal includes a second male arc-shaped portion whose shape corresponds to the male rotor shaft, and / or the female intake seal includes a second female arc-shaped portion whose shape corresponds to the female rotor shaft.

5. The integrated assembly of the suction seal plate and the oil baffle plate according to any one of claims 1-4, characterized in that, The male intake seal plate also includes a planar male mating surface to fit snugly against the intake end face of the male rotor, and the female intake seal plate includes a planar female mating surface to fit snugly against the intake end face of the female rotor.

6. The integrated assembly of the suction seal plate and the oil baffle plate according to any one of claims 1-4, characterized in that, Both the male connector and the female connector are provided with at least one connecting hole, and are detachably fixed together by a connector passing through the connecting hole.

7. The integrated assembly of the suction seal plate and the oil baffle plate according to claim 6, characterized in that, The connecting hole is a threaded hole, and the connecting component is a threaded connector.

8. The integrated assembly of the suction seal plate and the oil baffle plate according to any one of claims 1-4, characterized in that, The male connector and the female connector are fixed together by adhesive or welding.

9. The integrated assembly of the suction seal plate and the oil baffle plate according to any one of claims 1-4, characterized in that, The male air intake seal and the male oil baffle are arranged parallel to each other, and the male connecting part extends vertically between the male air intake seal and the male oil baffle. Similarly, the female air intake seal and the female oil baffle are arranged parallel to each other, and the female connecting part extends vertically between the female air intake seal and the female oil baffle.

10. The integrated assembly of the suction seal plate and the oil baffle plate according to any one of claims 1-4, characterized in that, Both the male and female oil baffles are in the form of a partial ring with a central hole.

11. The integrated assembly of the suction seal plate and the oil baffle plate according to claim 10, characterized in that, Both the male and female oil baffles have a first surface that at least partially abuts against the outer ring of the compressor body and the corresponding rotor bearing, and a second surface opposite to the first surface.

12. The integrated assembly of the suction seal plate and the oil baffle plate according to claim 11, characterized in that, The first surface of the male oil baffle and the first surface of the female oil baffle are provided with recesses.

13. The integrated assembly of the suction seal plate and the oil baffle plate according to claim 10, characterized in that, The diameter of the center hole of the male and female oil baffles is set to be less than or equal to the outer diameter of the inner ring of the corresponding rotor bearing, but greater than the diameter of the corresponding rotor shaft.

14. The integrated assembly of the suction seal plate and the oil baffle plate according to any one of claims 1-4, characterized in that, Both the male and female oil baffles are equipped with oil quantity control mechanisms.

15. The integrated assembly of the suction seal plate and the oil baffle plate according to claim 10, characterized in that, Both the male and female oil baffles are equipped with an oil quantity control mechanism, which is configured such that the diameter of the central hole of the male and female oil baffles is equivalent to the outer diameter of the inner ring of the corresponding bearing.

16. The integrated assembly of the suction seal plate and the oil baffle plate according to claim 14, characterized in that, The oil level control mechanism includes an oil control orifice for controlling the maximum liquid level of the refrigeration oil.

17. The integrated assembly of the suction seal plate and the oil baffle plate according to claim 16, characterized in that, The oil control holes of the male and female oil baffles are both configured such that the lowest edge of the corresponding oil control hole is equal to or slightly higher than the highest edge of the lowest rolling element of the corresponding rotor bearing.

18. The integrated assembly of the suction seal plate and the oil baffle plate according to claim 17, characterized in that, The oil control holes of the male and female oil baffles are located on either side of the lowest rolling element of the corresponding rotor bearing in the horizontal direction.

19. The integrated assembly of the suction seal plate and the oil baffle plate according to claim 17 or 18, characterized in that, The horizontal distance between the central axis of the oil control hole of the male and female oil baffles and the central axis of the lowest rolling element of the corresponding rotor bearing is less than the radius of the central hole of the corresponding oil baffle.

20. The integrated assembly of the suction seal plate and the oil baffle plate according to any one of claims 1-4, characterized in that, The male and female suction seal plates are embedded in the compressor body, while the male and female oil baffle plates are fixed to the compressor body by fasteners.

21. A compressor comprising an integrated suction seal and an oil baffle according to any one of claims 1-20.

22. A fluid machinery device, the fluid machinery device comprising the compressor according to claim 21.

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