A compressor

Abstract

The application discloses a compressor, which comprises a main shell formed with a motor slot, a main frame connected to the main shell at a slot opening side of the motor slot, and a compression assembly connected to the main frame away from the main shell, wherein the compression assembly is provided with an air suction hole; the main frame comprises an inner recess and an outer edge part connected to each other, the outer edge part surrounds the inner recess, the outer edge part is provided with a first through hole corresponding to the air suction hole, a bearing cavity is formed between the inner recess and the compression assembly, a side wall of the bearing cavity is provided with a second through hole, the first through hole and the second through hole correspond in the direction of gravity, and the compressor further comprises an oil filter assembly arranged in the first through hole. Thus, the second through hole communicates the motor slot and the bearing cavity, so that the low-temperature cooling oil in the motor slot is introduced into the bearing cavity through the oil filter assembly arranged in the first through hole, the rotating parts in the bearing cavity can be fully cooled and lubricated, and the risk that the compressor cannot work due to bearing damage is reduced.

Description

Technical Field

[0001] This application relates to the field of compressor technology, and in particular to a compressor. Background Technology

[0002] With the increasing adoption of automotive applications, automotive scroll compressor technology has also undergone continuous iteration and updates, achieving rapid development to meet demands for lightweight design, high reliability, low NVH (noise, vibration, and harshness), high energy efficiency, and low cost. Oil lubrication technology, as one of the core technologies of automotive scroll compressors, directly affects their reliability and performance.

[0003] The main bearing, drive bearing, and other moving parts rely on the cooling oil in the bearing housing for lubrication. However, the cooling oil in the bearing housing is often too hot and the oil volume is insufficient, which prevents the bearing from being adequately cooled and lubricated. As a result, the bearing will wear or even be damaged, and the compressor will not be able to work. Utility Model Content

[0004] The main objective of this application is to provide a compressor that addresses the aforementioned technical problems existing in the prior art.

[0005] To address the aforementioned problems, this application provides a compressor comprising a main housing, a main frame, and a compression assembly. The main housing has a motor slot. The main frame is connected to the main housing on one side of the motor slot. The compression assembly is connected to the main frame on the side away from the main housing and has an air intake port. The main frame includes an interconnected inner recess and an outer edge. The outer edge surrounds the inner recess and has a first through hole corresponding to the air intake port. A bearing cavity is formed between the inner recess and the compression assembly. A second through hole is provided on the sidewall of the bearing cavity. The first and second through holes correspond to each other in the direction of gravity. The compressor also includes an oil filter assembly disposed in the first through hole.

[0006] In some embodiments, the oil filter assembly includes a first frame clamp and a filter screen assembly. The filter screen assembly is connected between the first frame clamp and the outer edge. The first frame clamp includes a first frame body, which has a first clearance hole and a first notch. The filter screen assembly includes a filter screen portion, the first clearance hole corresponds to the filter screen portion, and the first notch is located between the first through hole and the second through hole in the direction of gravity.

[0007] In some embodiments, the oil filter assembly further includes a second frame clamp, the second frame clamp includes a second frame body, the filter assembly includes a support portion disposed around the periphery of the filter portion, the second frame body forms a second clearance hole corresponding to the filter portion, the first frame body and the second frame body are connected to opposite sides of the support portion, the radial dimension of the inner side of the first frame body and the second frame body is smaller than the radial dimension of the support portion, so that the support portion, the first frame body and the second frame body form a first drainage groove disposed around the periphery of the filter portion, the first drainage groove communicating with a first notch.

[0008] In some embodiments, the first through hole is arranged in the circumferential direction around the main frame, and the outer edge includes a second drainage groove. The opening of the second drainage groove faces the side away from the compression assembly. The second drainage groove extends in the direction of gravity. One end of the second drainage groove is connected to the first notch, and the other end of the second drainage groove is connected to the second through hole.

[0009] In some embodiments, the outer edge includes two stepped drainage portions located on the side of the first through hole near the recess in the radial direction of the main frame. The two stepped drainage portions extend in the circumferential direction and are spaced apart in the circumferential direction to form a second drainage groove between the two stepped drainage portions.

[0010] In some embodiments, the outer edge includes a mounting groove, which is disposed radially on the side of the two stepped drainage portions away from the recessed portion. The mounting groove is recessed toward the compression assembly. A first through hole is disposed on the bottom wall of the mounting groove. The mounting groove forms two mounting holes located on both sides of the first through hole in the circumferential direction. The oil filter assembly includes two fasteners that penetrate the first frame body and the second frame body and are respectively connected to one mounting hole.

[0011] In some embodiments, the second frame body further forms a second notch, which communicates with a second clearance hole. The second notch is correspondingly disposed to the first notch. The second drainage groove extends radially away from the step drainage portion and is partially disposed on the bottom wall of the mounting groove so that the second notch is located within the second drainage groove.

[0012] In some embodiments, the filter assembly includes at least two filters arranged adjacent to each other in the thickness direction of the oil filter assembly. Each filter includes a plurality of spaced-apart baffles, and the baffles of adjacent filters intersect on their outer edges.

[0013] In some embodiments, at least a portion of the baffle includes two guide bars connected at one end near the main housing, the two guide bars being positioned toward the compression assembly at one end near the compression assembly, and each guide bar being positioned away from the other guide bar in the circumferential direction of the main frame.

[0014] In some embodiments, there are multiple first through holes, second through holes, and oil filter components. Each oil filter component corresponds to one first through hole and one second through hole. Multiple first through holes are spaced apart in the circumferential direction of the main frame, and each first through hole communicates with an air intake hole.

[0015] Compared with the prior art, the compressor provided in this application includes a main housing, a main frame, and a compression assembly. The main housing forms a motor slot; the main frame is connected to the main housing on the side of the motor slot opening; the compression assembly is connected to the side of the main frame away from the main housing and has an air intake port. The main frame includes an interconnected inner recess and an outer edge, with the outer edge surrounding the inner recess and having a first through hole corresponding to the air intake port. A bearing cavity is formed between the inner recess and the compression assembly, and a second through hole is provided on the sidewall of the bearing cavity. The first and second through holes correspond in the direction of gravity. The compressor also includes an oil filter assembly disposed in the first through hole. Through the above embodiment, the second through hole connects the motor slot and the bearing cavity, and the oil filter assembly in the first through hole allows the low-temperature cooling oil in the motor slot to flow into the bearing cavity, providing sufficient cooling and lubrication for the rotating parts in the bearing cavity, reducing the risk of compressor malfunction due to bearing damage. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a cross-sectional view of an embodiment of the compressor provided in this application; Figure 2 yes Figure 1 A schematic diagram of one embodiment of the mainframe is shown; Figure 3 yes Figure 2 A disassembled structural diagram of one embodiment of the oil filter assembly is shown; Figure 4 yes Figure 2 A cross-sectional view of an embodiment of the oil filter assembly shown; Figure 5 yes Figure 2 The enlarged structural diagram of the mainframe shown at the dashed box I; Figure 6 yes Figure 2 The diagram shows an enlarged structural schematic of the mainframe at the dashed box U. Figure 7 yes Figure 3The diagram shows a structural schematic of one embodiment of the baffle.

[0018] Reference numerals: Compressor 10; Main housing 100; Motor slot 110; Main frame 200; Recessed portion 210; Outer edge portion 220; First through hole 221; Second drainage groove 222; Stepped drainage portion 230; Mounting groove 240; Mounting hole 241; Bearing cavity 250; Second through hole 251; Compression assembly 300; Oil filter assembly 400; First frame clamp 410; First frame body 411; First clearance hole 412; First notch 413; Filter screen assembly 420; Filter screen portion 421; Baffle strip 4211; Guide strip 4212; Support portion 422; Second frame clamp 430; Second frame body 431; Second clearance hole 432; Second notch 433; First drainage groove 440; Fixing member 450. Detailed Implementation

[0019] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0020] 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 to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0021] In the description of the embodiments of this application, technical terms such as "first" and "second" 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.

[0022] 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 application. 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.

[0023] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0024] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0025] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" 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 application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0026] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" 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 mechanical connection or an electrical connection; 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. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0027] With the development of automotive applications, automotive scroll compressor technology has also been continuously iterating and updating, achieving rapid development to meet the demands for lightweight design, high reliability, low NVH (noise, vibration, and harshness), high energy efficiency, and low cost. Oil lubrication technology, as one of the core technologies of automotive scroll compressors, directly affects their reliability and performance. The main bearing, drive bearing, and other moving parts rely on cooling oil in the bearing housing for lubrication. However, the cooling oil in the bearing housing often has a high temperature and insufficient quantity, resulting in inadequate heat dissipation and lubrication of the bearings. This can lead to bearing wear or even damage, rendering the compressor inoperable.

[0028] To address the related technical problems, this application provides a compressor, for details please refer to [link / reference needed]. Figure 1 and Figure 2 , Figure 1 This is a cross-sectional view of an embodiment of the compressor provided in this application. Figure 2 yes Figure 1 The diagram shows a structural schematic of one embodiment of the mainframe.

[0029] The compressor 10 includes a main housing 100, a main frame 200, and a compression assembly 300. The main housing 100 has a motor slot 110. The main frame 200 is connected to the main housing 100 on the side of the motor slot 110. The compression assembly 300 is connected to the main frame 200 on the side away from the main housing 100 and has an air intake hole. The main frame 200 includes an inner recess 210 and an outer edge 220 connected to each other. The outer edge 220 surrounds the inner recess 210 and has a first through hole 221 corresponding to the air intake hole. A bearing cavity 250 is formed between the inner recess 210 and the compression assembly 300. A second through hole 251 is provided on the side wall of the bearing cavity 250. The first through hole 221 and the second through hole 251 correspond to each other in the direction of gravity. The compressor 10 also includes an oil filter assembly 400, which is disposed in the first through hole 221.

[0030] The compressor 10 may include a main housing 100, a main frame 200, a compression assembly 300, and a rear cover. The main housing 100 has a motor slot 110, and one end of the slot of the main housing 100 is connected to the main frame 200, thereby forming a motor cavity between the main housing 100 and the main frame 200. The motor cavity is used to install the motor assembly. The side of the main frame 200 away from the main housing 100 is connected to the compression assembly 300. Specifically, the main frame 200 may include an outer edge 220 and a recess 210. The outer edge 220 is disposed on the outer periphery of the recess 210. The recess 210 is recessed relative to the outer edge 220 in the axial direction of the motor assembly toward the main housing 100. The side of the outer edge 220 away from the main housing 100 is connected to the compression assembly 300, thereby forming a bearing cavity 250 between the recess 210 and the compression assembly 300. The bearing cavity 250 accommodates a main bearing and a drive bearing that power the main shaft of the motor assembly to rotate. The compression assembly 300 may include a moving scroll and a stationary scroll arranged opposite each other in the axial direction, with the moving scroll located on the side of the stationary scroll closer to the main frame 200. The side of the stationary scroll opposite the moving scroll is connected to a rear cover, thereby forming an exhaust chamber between the stationary scroll and the rear cover. The moving scroll may have an intake port. The moving and stationary scrolls mesh with each other to form a compression chamber, which communicates with the intake port. The stationary scroll has an exhaust port communicating with both the compression chamber and the exhaust chamber. A first through-hole 221 is also provided on the outer edge 220, communicating with the intake port and the motor cavity, allowing lubricant and refrigerant in the motor cavity to be sequentially introduced into the exhaust chamber through the first through-hole 221, the intake port, the compression chamber, and the exhaust port. The rear cover may also have an outlet, which is sequentially connected to a condenser, an expansion valve, and an evaporator. The evaporator is also connected to the compressor 10, thereby achieving refrigerant circulation.

[0031] The main frame 200 and the compression assembly 300 can jointly form an oil return channel, which connects the compression chamber and the bearing chamber 250, thereby allowing the high-temperature cooling oil in the compression chamber to be introduced into the bearing chamber 250, thus lubricating the rotating parts in the bearing chamber 250.

[0032] However, the cooling oil in the bearing cavity 250 is insufficient in quantity and has a high temperature, which prevents the rotating parts in the bearing cavity 250 from being adequately lubricated and cooled. This still results in bearing damage and the compressor 10 being unable to work.

[0033] To solve the above problems, an oil filter assembly 400 is provided in the first through hole 221, and a second through hole 251 is provided on the side wall of the recess 210 forming the bearing cavity 250. The first through hole 221 and the second through hole 251 are arranged correspondingly in the direction of gravity. The two ends of the second through hole 251 are connected to the bearing cavity 250 and the motor cavity, respectively. The lubricant and the low-temperature gaseous refrigerant in the motor cavity are in a mist-like mixed state under the agitation of the motor assembly. That is, the lubricant is in a mist state, and the refrigerant can be in a mist state, a gas state, or a mist-like mixed state. Thus, during the process of the low-temperature refrigerant and lubricant passing through the first through hole 221, the low-temperature refrigerant can pass directly through the first through hole 221, while some of the lubricant is blocked and accumulated by the oil filter assembly 400. The blocked lubricant is guided into the bearing cavity 250 through the second through hole 251 under the action of gravity. Understandably, during the mixing process of the lubricant in the motor cavity with the low-temperature refrigerant, the lubricant temperature is relatively low. The lubricant that enters the bearing cavity 250 directly from the motor cavity through the second through hole 251 can effectively dissipate heat from each rotating component. At the same time, it can also increase the amount of lubricant in the bearing cavity 250 and improve the lubrication effect on each rotating component.

[0034] Through the above implementation method, the second through hole 251 connects the motor slot 110 and the bearing cavity 250, and the oil filter assembly 400 is provided in the first through hole 221. The low-temperature lubricant in the motor slot 110 is guided into the bearing cavity 250 through the oil filter assembly 400, which can provide sufficient cooling and lubrication for the rotating parts in the bearing cavity 250, and reduce the risk of bearing damage causing the compressor 10 to fail to work.

[0035] See Figure 3 , Figure 3 yes Figure 2 A disassembled structural diagram of one embodiment of the oil filter assembly is shown.

[0036] In some embodiments, the oil filter assembly 400 includes a first frame clamp 410 and a filter screen assembly 420. The filter screen assembly 420 is connected between the first frame clamp 410 and the outer edge portion 220. The first frame clamp 410 includes a first frame body 411, which has a first clearance hole 412 and a first notch 413. The filter screen assembly 420 includes a filter screen portion 421, with the first clearance hole 412 corresponding to the filter screen portion 421. The first notch 413 is located between the first through hole 221 and the second through hole 251 in the direction of gravity.

[0037] The first frame clamp 410 can be understood as a frame structure with a window in the middle to allow refrigerant and lubricant to pass through. The first frame body 411 can be the frame portion of the first frame clamp 410, and the first frame body 411 fixes the filter assembly 420 between the first frame clamp 410 and the outer edge portion 220. The window portion of the first frame clamp 410 is the first clearance hole 412. In the direction of gravity, a first notch 413 communicating with the first clearance hole 412 is formed at the lower end of the first frame body 411. The filter assembly 420 includes a filter portion 421. As an example, the filter portion 421 can be a mesh structure, and as another example, the filter portion 421 can also be a strip structure, so that the filter portion 421 has a structure that blocks part of the lubricant and small holes that allow refrigerant and part of the lubricant to pass through. The first clearance hole 412 is provided correspondingly to the filter portion 421. After some lubricant is blocked by the filter section 421, this portion of lubricant can collect in the first clearance hole 412 and then in the first notch 413. The first notch 413 is also located between the first through hole 221 and the second through hole 251 in the direction of gravity, so that the lubricant collected in the first notch 413 can pass through the first notch 413 under the action of gravity and flow into the second through hole 251. Thus, the first clearance hole 412 can collect lubricant in the first notch 413, thereby allowing the lubricant blocked by the filter assembly 420 to flow more stably through the first notch 413 and the second through hole 251 into the bearing cavity 250, improving the stability of the blocked lubricant flowing into the bearing cavity 250, and improving the heat dissipation and lubrication effect on the rotating parts in the bearing cavity 250.

[0038] See Figure 4 , Figure 4 yes Figure 2 A cross-sectional view of one embodiment of the oil filter assembly shown.

[0039] In some embodiments, the oil filter assembly 400 further includes a second frame clamp 430, which includes a second frame body 431. The filter screen assembly 420 includes a support portion 422 disposed around the periphery of the filter screen portion 421. The second frame body 431 forms a second clearance hole 432 corresponding to the filter screen portion 421. The first frame body 411 and the second frame body 431 are connected to opposite sides of the support portion 422. The radial dimension of the inner side of the first frame body 411 and the second frame body 431 is smaller than the radial dimension of the support portion 422, so that the support portion 422, the first frame body 411 and the second frame body 431 form a first drainage groove 440 disposed around the periphery of the filter screen portion 421. The first drainage groove 440 communicates with the first notch 413.

[0040] The structure of the second frame clamp 430 is similar to that of the first frame clamp 410. The second frame clamp 430 includes a second frame body 431, and a second clearance hole 432 is formed in the middle of the second frame body 431. The second clearance hole 432 corresponds to the filter part 421 and the first clearance hole 412. The filter assembly 420 also includes a support part 422 disposed on the outer periphery of the filter part 421 to provide support for the filter part 421. The two opposite sides of the support part 422 are respectively connected between the first frame body 411 and the second frame body 431 to clamp and fix the filter assembly 420 to the outer edge 220. The radial dimension of the inner side of the first frame body 411 and the second frame body 431 is smaller than the radial dimension of the support part 422, thereby forming a first drainage groove 440 in the first frame body 411, the second frame body 431 and the support part 422. Specifically, a first drainage groove 440 is formed on the opposite sides of the first frame body 411 and the second frame body 431, as well as on the inner side of the support portion 422 near the filter portion 421, and the first drainage groove 440 is also connected to the first notch 413. Thus, a first drainage groove 440 communicating with the first notch 413 is formed on the inner circumference of the filter assembly 420, allowing lubricant blocked by the filter portion 421 to flow into the first drainage groove 440. The lubricant in the first drainage groove 440 enters the bearing cavity 250 through the first notch 413 and the second through hole 251, thereby further improving the stability of the blocked lubricant flowing into the bearing cavity 250 and improving the heat dissipation and lubrication effects on the rotating components within the bearing cavity 250.

[0041] See Figure 5 , Figure 5 yes Figure 2 The diagram shows an enlarged view of the mainframe at the dashed box I.

[0042] In some embodiments, the first through hole 221 is arranged around the circumferential direction of the main frame 200, and the outer edge 220 includes a second drainage groove 222. The opening of the second drainage groove 222 faces the side away from the compression assembly 300. The second drainage groove 222 extends in the direction of gravity. One end of the second drainage groove 222 is connected to the first notch 413, and the other end of the second drainage groove 222 is connected to the second through hole 251.

[0043] The first through-hole 221 is provided on the outer edge 220 of the main frame 200 in the circumferential direction, which can increase the flow rate of refrigerant and lubricant into the compression assembly 300 and the bearing cavity 250, thereby improving the lubrication and heat dissipation effect. The outer edge 220 is provided with a second drainage groove 222. The second drainage groove 222 is a through groove, and the groove opening of the second drainage groove 222 faces the side away from the compression assembly 300. The two ends of the second drainage groove 222 are respectively connected to the first notch 413 and the second through-hole 251, so that the lubricant collected in the first notch 413 can be guided into the bearing cavity 250 through the second drainage groove 222 and the second through-hole 251. Since the first through-hole 221 is provided in the circumferential direction, the filter assembly 420 is also provided in the circumferential direction to correspond to the first through-hole 221. The first notch 413 can be located at the lower end of the first frame body 411 in the gravity direction, so that the lubricant collects in the first notch 413 under the action of gravity. Therefore, the two ends of the second drainage groove 222 are connected to the second through hole 251 and the first notch 413 respectively, so that more lubricant can enter the bearing cavity 250 through the second drainage groove 222, reducing the possibility of lubricant flowing back into the motor cavity. This further improves the stability of the blocked lubricant flowing into the bearing cavity 250, and improves the heat dissipation and lubrication effect on the rotating parts in the bearing cavity 250.

[0044] In some embodiments, the outer edge 220 includes two stepped drainage portions 230, which are located on the side of the first through hole 221 near the recess 210 in the radial direction of the main frame 200. The two stepped drainage portions 230 extend in the circumferential direction and are spaced apart in the circumferential direction to form a second drainage groove 222 between the two stepped drainage portions 230.

[0045] The stepped drainage portion 230 has a stepped structure and can also extend in the circumferential direction to match the filter assembly 420. Two stepped drainage portions 230 are spaced apart in the circumferential direction to form a second drainage groove 222 between them, and the stepped drainage portions 230 are located on the side of the first through hole 221 near the recess 210. Exemplarily, the stepped drainage portion 230 may include at least one step, which extends in the circumferential direction, with one end of the step connected to the recess 210 in the radial direction and the other end located within the recess 210. The upper stepped drainage portion 230 in the gravity direction may have a larger circumferential dimension than the corresponding other stepped drainage portion 230, so that the second drainage groove 222 is located lower in the gravity direction and corresponds to the first notch 413. Thus, the two stepped drainage sections 230 can not only improve the structural strength of the main frame 200, but also guide the lubricant into the second drainage groove 222.

[0046] See Figure 6 , Figure 6 yes Figure 2 The diagram shows an enlarged view of the mainframe at the dashed box U.

[0047] In some embodiments, the outer edge 220 includes a mounting groove 240, which is radially disposed on the side of the two stepped drainage portions 230 away from the recessed portion 210. The mounting groove 240 is recessed toward the compression assembly 300. A first through hole 221 is disposed on the bottom wall of the mounting groove 240. The mounting groove 240 has two mounting holes 241 located on both sides of the first through hole 221 in the circumferential direction. The oil filter assembly 400 includes two fasteners 450, which pass through the first frame body 411 and the second frame body 431 and are respectively connected to one mounting hole 241.

[0048] The mounting groove 240 is located radially away from the recess 210. A first through hole 221 is provided in the bottom wall of the mounting groove 240 so that the oil filter assembly 400 can be installed in the mounting groove 240. Exemplarily, the mounting groove 240 may have two mounting holes 241, located on either side of the first through hole 221 in the circumferential direction. The oil filter assembly 400 includes two fasteners 450 corresponding to the two mounting holes 241. The fasteners 450 may be bolts or locating pins. The two fasteners 450 can pass through the first frame body 411, the second frame body 431, and the filter assembly 420, and are respectively connected to one mounting hole 241, thereby fixing the oil filter assembly 400 in the mounting groove 240. Therefore, the first frame body 411 and the second frame body 431 are each provided with a pair of through holes. Each pair of through holes can be located on both sides of their respective clearance holes in the circumferential direction. After the oil filter assembly 400 is placed in the mounting groove 240, the pair of through holes of the first frame body 411 and the second frame body 431 can correspond to the two mounting holes 241 respectively. Then, the oil filter assembly 400 is fixed in the mounting groove 240 by connecting the two fasteners 450 to the two mounting holes 241. Thus, the installation efficiency of the oil filter assembly 400 is improved by positioning the through holes of the oil filter assembly 400 with the mounting holes 241.

[0049] In some embodiments, the second frame body 431 is further formed with a second notch 433, which communicates with the second clearance hole 432. The second notch 433 is correspondingly disposed with the first notch 413. The second drainage groove 222 extends in the radial direction away from the step drainage portion 230 and is partially disposed on the bottom wall of the mounting groove 240 so that the second notch 433 is located in the second drainage groove 222.

[0050] The second frame body 431 also has a second notch 433 corresponding to the first notch 413. The second notch 433 communicates with the second clearance hole 432 so that the lubricant located in the second clearance hole 432 can be guided to the second notch 433. The second drainage groove 222 also extends radially toward the mounting groove 240, and part of the second drainage groove 222 is located on the bottom wall of the mounting groove 240, thereby deepening the depth of the second drainage groove 222 so that the second notch 433 is also located in the second drainage groove 222. Thus, the second frame body 431 has a second notch 433 communicating with the second clearance hole 432, and the second drainage groove 222 is partly formed on the bottom wall of the mounting groove 240 and partly located between the two stepped drainage portions 230, so that the second notch 433 is located in the second drainage groove 222. This can further improve the stability of the blocked lubricant flowing into the bearing cavity 250, and improve the heat dissipation and lubrication effect on the rotating parts in the bearing cavity 250.

[0051] In some embodiments, the filter assembly 420 includes at least two filters arranged adjacent to each other in the thickness direction of the oil filter assembly 400. Each filter includes a plurality of spaced-apart baffles 4211, and the baffles 4211 of adjacent filters intersect on the orthographic projection of their outer edges 220.

[0052] The filter assembly 420 may include at least two filter screens, which may be arranged adjacent to each other in the thickness direction of the oil filter assembly 400, which can be understood as a stacked arrangement. Each filter screen may include multiple baffles 4211, and the two ends of each baffle 4211 are respectively connected to the inner side of the support portion 422, so that the support portion 422 supports each baffle 4211. As an example, the multiple baffles 4211 may be spaced apart in the circumferential direction and may extend in the radial direction. As another example, the multiple baffles 4211 may be spaced apart in the radial direction and extend in the circumferential direction. As yet another example, the multiple baffles 4211 are divided into two parts, and the two parts of baffles 4211 are intersecting. One part of the multiple baffles 4211 are spaced apart in the circumferential direction and this part of the baffles 4211 extends in the radial direction, while the other part of the multiple baffles 4211 are spaced apart in the radial direction, and each baffle 4211 in this part extends in the circumferential direction. Furthermore, the baffles 4211 of each filter screen can intersect on the orthographic projection of their outer edges 220. This allows for a suitable increase in the amount of lubricant collected in the oil filter assembly 400, thereby improving the heat dissipation and lubrication effects on the rotating parts within the bearing cavity 250.

[0053] In this embodiment, the total area of ​​the pores formed by the multiple baffles 4211 of the filter section 421 can account for 40%-60% of the total area of ​​the filter section 421, so that the amount of lubricant entering the bearing cavity 250 through the second through hole 251 is within a suitable range. This allows the lubricant entering the compression cavity through the first through hole 221 to effectively lubricate the moving scroll and the stationary scroll. At the same time, the lubricant entering the bearing cavity 250 through the second through hole 251 can also effectively cool and lubricate the rotating parts in the bearing cavity 250.

[0054] See Figure 7 , Figure 7 yes Figure 3 The diagram shows a structural schematic of one embodiment of the baffle.

[0055] In some embodiments, at least a portion of the baffle 4211 includes two guide bars 4212 connected at one end near the main housing 100, the two guide bars 4212 being arranged in a direction close to the compression assembly 300 at one end near the compression assembly 300, and each guide bar 4212 being arranged in a direction away from the other guide bar 4212 in the circumferential direction of the main frame 200.

[0056] At least a portion of the baffles 4211 of each filter section 421 includes two guide bars 4212; that is, each baffle 4211 of each filter section 421 may include two guide bars 4212; or, a portion of the baffles 4211 may include two guide bars 4212. The baffles 4211 with guide bars 4212 may be partially adjacent and spaced apart, or may be adjacent and spaced apart from baffles 4211 without guide bars 4212. The two baffles 4211 are connected to each other at one end near the main housing 100 in the thickness direction of the oil filter assembly 400, and the two baffles 4211 extend towards the compression assembly 300 at one end away from the main housing 100 in the thickness direction of the oil filter assembly 400. Each guide bar 4212 extends circumferentially away from the other connected guide bar 4212. This allows the two guide strips 4212 to form long groove-shaped structures with a "V" or "U" shaped cross-section, and the openings of the long groove-shaped structures face away from the main housing 100. Thus, the baffle 4211 with two guide strips 4212 can both block the lubricant and reduce the risk of reduced compression effect of the compressor 10 due to the oil filter assembly 400 blocking the refrigerant.

[0057] In some embodiments, there are multiple first through holes 221, second through holes 251 and oil filter components 400. Each oil filter component 400 corresponds to one first through hole 221 and one second through hole 251. Multiple first through holes 221 are spaced apart in the circumferential direction of the main frame 200, and each first through hole 221 is connected to an air intake hole.

[0058] The outer edge 220 may be provided with multiple first through holes 221 and second through holes 251. The number of oil filter components 400 may also be multiple, with each oil filter component 400 corresponding to one first through hole 221 and one second through hole 251. The multiple first through holes 221 are spaced apart in the circumferential direction. It is understood that the compressor 10 can be placed horizontally, meaning the thickness direction of the oil filter component 400 is horizontal. In the vertical direction, at the center of the height direction, a cross-section is provided in the horizontal direction to divide the main frame 200 into upper and lower parts. Multiple first through holes 221 located on the upper side of the cross-section or intersecting the cross-section may be matched with second through holes 251 and oil filter components 400, as well as the aforementioned stepped drainage portion 230, mounting groove 240, and second drainage groove 222. The first through holes 221 located on the lower side of the cross-section may not have matched second through holes 251 and oil filter components 400. This allows the lubricant passing through the oil filter assembly 400 to enter the bearing cavity 250 under the influence of gravity. Furthermore, each first through-hole 221 can communicate with a suction port, allowing a portion of the lubricant and refrigerant passing through the first through-hole 221 to enter the suction port. The first through-holes 221 that match the oil filter assembly 400 all have suction, thereby collecting the lubricant and allowing it to flow into the bearing cavity 250. Thus, the outer edge 220 is provided with a plurality of circumferentially spaced first through-holes 221, which improves the efficiency of lubricant and refrigerant entering the compression chamber, as well as the efficiency of a portion of the lubricant entering the bearing cavity 250, thereby improving the lubrication and heat dissipation effects on the rotating components within the bearing cavity 250.

[0059] In summary, the second through hole 251 connects the motor slot 110 and the bearing cavity 250, and the oil filter assembly 400 is provided in the first through hole 221. The low-temperature cooling oil in the motor slot 110 is guided into the bearing cavity 250 through the oil filter assembly 400, which can provide sufficient cooling and lubrication for the rotating parts in the bearing cavity 250, reducing the risk of bearing damage that could cause the compressor 10 to fail to work.

[0060] 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. 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 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. A compressor, characterized in that, The compressor includes: The main housing has a motor slot. The main frame is connected to the main housing on the side of the slot located in the motor slot; A compression assembly is connected to the side of the main frame away from the main housing, and the compression assembly has an air intake port; The main frame includes an inner recess and an outer edge that are connected to each other. The outer edge surrounds the inner recess and is provided with a first through hole, which corresponds to the air intake hole. A bearing cavity is formed between the inner recess and the compression assembly. A second through hole is provided on the side wall of the bearing cavity. The first through hole and the second through hole correspond to each other in the direction of gravity. The compressor also includes an oil filter assembly, which is disposed in the first through hole.

2. The compressor according to claim 1, characterized in that, The oil filter assembly includes a first frame clamp and a filter screen assembly. The filter screen assembly is connected between the first frame clamp and the outer edge. The first frame clamp includes a first frame body, which has a first clearance hole and a first notch. The filter screen assembly includes a filter screen portion. The first clearance hole corresponds to the filter screen portion. The first notch is located between the first through hole and the second through hole in the direction of gravity.

3. The compressor according to claim 2, characterized in that, The oil filter assembly further includes a second frame clamp, which includes a second frame body. The filter assembly includes a support portion disposed around the periphery of the filter portion. The second frame body forms a second clearance hole corresponding to the filter portion. The first frame body and the second frame body are connected to opposite sides of the support portion. The radial dimension of the inner side of the first frame body and the second frame body is smaller than the radial dimension of the support portion, so that the support portion, the first frame body, and the second frame body form a first drainage groove disposed circumferentially around the filter portion. The first drainage groove communicates with the first notch.

4. The compressor according to claim 3, characterized in that, The first through hole is arranged around the circumferential direction of the main frame, and the outer edge includes a second drainage groove. The opening of the second drainage groove faces away from the compression assembly. The second drainage groove extends in the direction of gravity. One end of the second drainage groove is connected to the first notch, and the other end of the second drainage groove is connected to the second through hole.

5. The compressor according to claim 4, characterized in that, The outer edge includes two stepped drainage portions, which are located on the side of the first through hole near the inner recess in the radial direction of the main frame. The two stepped drainage portions extend in the circumferential direction and are spaced apart in the circumferential direction to form a second drainage groove between the two stepped drainage portions.

6. The compressor according to claim 5, characterized in that, The outer edge includes a mounting groove, which is disposed in the radial direction on the side of the two stepped drainage portions away from the concave portion. The mounting groove is recessed towards the compression assembly. The first through hole is disposed on the bottom wall of the mounting groove. The mounting groove forms two mounting holes located on both sides of the first through hole in the circumferential direction. The oil filter assembly includes two fixing members, which penetrate the first frame body and the second frame body and are respectively connected to one of the mounting holes.

7. The compressor according to claim 6, characterized in that, The second frame body also has a second notch, which communicates with the second clearance hole. The second notch is corresponding to the first notch. The second drainage groove extends in the radial direction away from the step drainage portion and is partially disposed on the bottom wall of the mounting groove so that the second notch is located in the second drainage groove.

8. The compressor according to claim 2, characterized in that, The filter assembly includes at least two filter screens, which are arranged adjacent to each other in the thickness direction of the oil filter assembly. Each filter screen includes a plurality of spaced-apart baffles, and the baffles of adjacent filter screens intersect on their orthographic projections on their outer edges.

9. The compressor according to claim 8, characterized in that, At least part of the baffle includes two guide bars, the two guide bars are connected at one end near the main housing, the two guide bars are arranged in a direction close to the compression assembly at one end near the compression assembly, and each guide bar is arranged in a direction away from the other guide bar in the circumferential direction of the main frame.

10. The compressor according to claim 2, characterized in that, There are multiple first through holes, second through holes and oil filter components. Each oil filter component corresponds to one first through hole and one second through hole. Multiple first through holes are spaced apart in the circumferential direction of the main frame. Each first through hole is connected to the air intake hole.

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