A oil blocking assembly for a horizontal compressor and a horizontal compressor

Abstract

The application discloses an oil blocking assembly for a horizontal compressor and the horizontal compressor, the oil blocking assembly comprises an oil blocking plate, the oil blocking plate is arranged on one side of a first end surface of a motor rotor and is spaced apart from the first end surface of the motor rotor by a certain distance, the oil blocking plate is fixedly connected with the motor rotor, a side surface of the oil blocking plate opposite to the first end surface of the motor rotor is an inner side surface of the oil blocking plate, an oil blocking plate extension wall is fixedly sealed around a circumference of a crankshaft at a position corresponding to an oil outlet end of the crankshaft on the inner side surface of the oil blocking plate, the oil outlet end of the crankshaft extends into an inner cavity of the oil blocking plate extension wall by a certain depth, the oil blocking plate is used for blocking an oil outlet of a crankshaft oil passage and a motor cavity, and a cooperation gap between the oil blocking plate extension wall and the crankshaft forms an oil outlet passage. Through cooperation of the oil blocking plate and the crankshaft, the oil blocking plate can block the oil outlet of the crankshaft oil passage and the motor cavity, so that the oil outlet pressure of the crankshaft oil passage is reduced, and effective oil pumping is facilitated.

Description

Technical Field

[0001] This invention belongs to the field of horizontal compressor technology, specifically relating to an oil baffle assembly for a horizontal compressor and a horizontal compressor. Background Technology

[0002] Horizontal compressors, with their advantages of horizontal placement, compact structure, and small height footprint, can be used in cold storage, container refrigeration units, and automotive refrigeration units. Unlike vertical compressors, which utilize the centrifugal force of crankshaft rotation to pump oil, the oil pumping method of horizontal compressors is limited by their horizontal layout and typically relies on the principle of pressure differential to achieve the circulation and supply of lubricating oil.

[0003] Therefore, how to achieve effective oil pumping by reasonably controlling the pressure difference has become a core technical challenge affecting the long-term reliable operation of horizontal compressors. Summary of the Invention

[0004] In view of the above-mentioned deficiencies of the prior art, the present invention provides an oil baffle assembly for a horizontal compressor and a horizontal compressor. By cooperating with the crankshaft, the oil baffle plate can isolate the oil outlet of the crankshaft oil passage from the motor cavity, thereby reducing the oil outlet pressure of the crankshaft oil passage and facilitating effective oil pumping.

[0005] The technical solution adopted by this invention to solve its technical problem is:

[0006] An oil baffle assembly for a horizontal compressor, the horizontal compressor including a housing, a motor and a pump body housed within the housing, the inner cavity of the housing being divided into a motor cavity and a pump body cavity by an upper cylinder head of the pump body, the motor including a motor stator and a motor rotor, a crankshaft being inserted and fixed within the shaft hole of the motor rotor, a crankshaft oil passage extending through both ends of the crankshaft, one end of the crankshaft corresponding to the oil outlet of the crankshaft oil passage being the crankshaft oil outlet end, the crankshaft oil outlet end extending out of the shaft hole of the motor rotor, and the end face of one end of the motor rotor being the first end face of the motor rotor adjacent to the crankshaft oil outlet end;

[0007] The oil baffle assembly includes an oil baffle plate, which is disposed on one side of the first end face of the motor rotor and spaced a certain distance from the first end face of the motor rotor. The oil baffle plate is fixedly connected to the motor rotor. The side of the oil baffle plate facing the first end face of the motor rotor is the inner side of the oil baffle plate. An oil baffle cavity is provided on the inner side of the oil baffle plate around the crankshaft at a position corresponding to the oil outlet end of the crankshaft. The oil outlet end of the crankshaft extends into the oil baffle cavity to a certain depth. The oil baffle plate is used to isolate the oil outlet of the crankshaft oil channel from the motor cavity. An oil outlet channel is formed between the oil baffle cavity and the crankshaft.

[0008] Furthermore, a counterweight is provided between the oil baffle and the motor rotor, and the oil baffle, the counterweight, and the motor rotor are fixedly connected by fasteners.

[0009] Furthermore, an oil baffle extension wall is integrally provided on the inner side of the oil baffle at a position corresponding to the oil outlet end of the crankshaft around the crankshaft. The inner cavity of the oil baffle extension wall forms an oil baffle cavity, and the oil outlet end of the crankshaft extends into the inner cavity of the oil baffle extension wall, forming an oil outlet channel between the oil baffle extension wall and the crankshaft.

[0010] Furthermore, the fit clearance between the free end of the extended wall of the oil baffle and the crankshaft forms the first oil outlet port of the oil outlet channel.

[0011] Furthermore, the free end of the extended wall of the oil baffle plate is sealed to the outer peripheral surface of the crankshaft, and the extended wall of the oil baffle plate is provided with a plurality of second oil outlet ports that are connected to the oil outlet channel.

[0012] Furthermore, the free end of the extended wall of the oil baffle plate is sealed to the crankshaft through a sealing ring. The sealing ring is located on the inner circumferential surface of the free end of the extended wall of the oil baffle plate, or on the outer circumferential surface of the crankshaft near the free end of the extended wall of the oil baffle plate.

[0013] Furthermore, the outer circumferential surface of the crankshaft oil outlet is a radially outwardly expanding slope surface, and the free end of the oil baffle extension wall is engaged on the slope surface to achieve a sealing fit.

[0014] Furthermore, multiple second oil outlet ports are distributed circumferentially along the extended wall of the oil baffle, and the second oil outlet ports are oil outlet grooves and / or oil outlet holes.

[0015] Furthermore, the circumferential spacing between any two adjacent second oil outlet ports along the extended wall of the oil baffle is equal.

[0016] Furthermore, an oil-blocking groove is formed on the inner side of the oil baffle plate around the crankshaft at a position corresponding to the oil outlet end of the crankshaft. The inner cavity of the oil-blocking groove forms an oil-blocking chamber. The oil outlet end of the crankshaft extends into the inner cavity of the oil-blocking groove. The fitting clearance between the groove wall of the oil-blocking groove and the crankshaft forms an oil outlet channel.

[0017] Furthermore, the oil baffle is circular, the wall of the oil baffle cavity is cylindrical, and the axes of the oil baffle, the oil baffle cavity, and the crankshaft coincide; the outer diameter of the crankshaft is denoted as Dz, the inner diameter of the oil baffle cavity is denoted as Dy, and the height is denoted as Hh, wherein Dy is controlled to be 1.05Dz-1.5Dz, and the depth of the crankshaft oil outlet end extending into the oil baffle cavity is controlled to be 0.2Hh-0.8Hh.

[0018] A horizontal compressor includes the oil baffle assembly for a horizontal compressor described above.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0020] The oil baffle assembly for a horizontal compressor in this invention includes an oil baffle plate, which is disposed on one side of the first end face of the motor rotor and spaced a certain distance from the first end face of the motor rotor. The oil baffle plate is fixedly connected to the motor rotor. The side of the oil baffle plate facing the first end face of the motor rotor is the inner side of the oil baffle plate. An oil baffle cavity is provided around the crankshaft at a position corresponding to the oil outlet end of the crankshaft. The oil outlet end of the crankshaft extends into the oil baffle cavity to a certain depth. The oil baffle plate is used to isolate the oil outlet of the crankshaft oil passage from the motor cavity. An oil outlet passage is formed between the oil baffle cavity and the crankshaft. This invention, through the cooperation of an oil baffle plate and crankshaft, can isolate the oil outlet of the crankshaft oil passage from the motor cavity. This prevents the high-pressure refrigerant discharged from the upper muffler into the motor cavity during high-speed rotation of the horizontal compressor's motor rotor from entering the crankshaft oil passage through the oil outlet. This reduces the pressure at the crankshaft oil passage outlet, thus effectively utilizing the differential pressure pumping principle to facilitate efficient oil pumping, increasing the oil supply speed and the amount of lubricating oil entering the crankshaft oil passage. This invention comprehensively solves the problem of difficult oil supply in horizontal compressors in the prior art. The lubricating oil in the crankshaft oil passage is then indirectly discharged into the motor cavity through the oil outlet and oil passage sequentially. Attached Figure Description

[0021] Figure 1 This is a cross-sectional view of a horizontal compressor including an oil baffle assembly in a first preferred embodiment of one of the present invention.

[0022] Figure 2 for Figure 1 Enlarged structural diagram of the intermediate oil baffle assembly;

[0023] Figure 3 for Figure 1 A three-dimensional structural diagram of the rotor, counterweight, oil baffle, and crankshaft of the electric motor.

[0024] Figure 4 for Figure 3 A magnified view of a portion of the image;

[0025] Figure 5 for Figure 1 A three-dimensional structural diagram of the middle oil baffle and the extended wall of the oil baffle;

[0026] Figure 6 This is a cross-sectional view of a horizontal compressor including an oil baffle assembly in a second preferred embodiment of one of the present invention.

[0027] Figure 7 for Figure 6 Enlarged structural diagram of the intermediate oil baffle assembly;

[0028] Figure 8 for Figure 6 A three-dimensional structural diagram of the fit between the center oil baffle and the crankshaft;

[0029] Figure 9 for Figure 8 A magnified view of a portion of the image;

[0030] Figure 10 for Figure 6 A three-dimensional structural diagram of the middle oil baffle, the oil baffle extension wall, and the sealing end plate;

[0031] Figure 11 This is an initial oil level and oil-gas distribution cloud map of a horizontal compressor including an oil baffle assembly in a first preferred embodiment of the present invention.

[0032] Figure 12 This is an oil and gas distribution cloud map of a horizontal compressor, including the oil baffle assembly in a first preferred embodiment of the present invention, after 90 cycles of operation.

[0033] Figure 13 This is a distribution diagram showing the difference between the average pressure P1 in the motor cavity and the average pressure P2 in the pump cavity of a horizontal compressor in a first preferred embodiment of the present invention, and the difference between the average pressure P3 at the oil outlet of the crankshaft oil passage and the average pressure P2 in the pump cavity during one cycle.

[0034] Figure 14 A cross-sectional view of a horizontal compressor including an oil baffle assembly according to another embodiment of the present invention;

[0035] Figure 15 for Figure 14 Enlarged structural diagram of the intermediate oil baffle assembly.

[0036] Figure reference numerals: 1. Housing; 101. Motor cavity; 102. Pump cavity; 2. Motor stator; 3. Motor rotor; 301. First end face of motor rotor; 4. Crankshaft; 401. Upper eccentric part; 402. Lower eccentric part; 403. Crankshaft oil passage; 40301. Oil suction port; 40302. Oil outlet port; 404. Vane; 405. Crankshaft oil outlet end; 5. Upper muffler; 6. Upper cylinder head; 7. Upper air intake. 8. Cylinder, 9. Intermediate plate, 10. Lower cylinder, 11. Lower cylinder head, 12. Lower muffler, 13. Upper piston, 14. Lower piston, 15. Suction pipe, 1501. Oil baffle, 150101. Inner side of oil baffle, 1502. Oil baffle extension wall, 1503. Oil baffle groove, 16. Oil outlet channel, 17. First oil outlet port, 18. Second oil outlet port, 19. Counterweight, 20. Bolt, 21. Sealing ring. Detailed Implementation

[0037] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. These embodiments are for illustrative purposes only and are not intended to limit the scope of the invention.

[0038] In the description of this invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not 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 invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0041] An oil baffle assembly for a horizontal compressor, such as Figures 1-10 as well as Figures 14-15 As shown, the horizontal compressor includes a housing 1. The housing 1 contains a motor and a pump body. The inner cavity of the housing 1 is divided into a motor cavity 101 and a pump body cavity 102 by the upper cylinder head 6 of the pump body. The motor includes a motor stator 2 and a motor rotor 3. A crankshaft 4 is inserted and fixed in the shaft hole of the motor rotor 3. The crankshaft 4 has a crankshaft oil passage 403 that passes through both ends of the crankshaft 4. One end of the crankshaft 4 corresponding to the oil outlet 40302 of the crankshaft oil passage 403 is the crankshaft oil outlet 405. The crankshaft oil outlet 405 extends out of the shaft hole of the motor rotor 3. The end face of one end of the motor rotor 3 is the first end face 301 of the motor rotor that is adjacent to the crankshaft oil outlet 405.

[0042] The oil baffle assembly includes an oil baffle plate 1501, which is disposed on one side of the first end face 301 of the motor rotor and spaced a certain distance from the first end face 301 of the motor rotor. The oil baffle plate 1501 is fixedly connected to the motor rotor 3. The side of the oil baffle plate 1501 facing the first end face 301 of the motor rotor is the inner side 150101 of the oil baffle plate. An oil baffle cavity is provided on the inner side 150101 of the oil baffle plate around the crankshaft 4 at a position corresponding to the crankshaft oil outlet 405. The crankshaft oil outlet 405 extends into the oil baffle cavity to a certain depth. The oil baffle plate 1501 is used to isolate the oil outlet 40302 of the crankshaft oil passage 403 from the motor cavity 101. An oil outlet channel 16 is formed between the oil baffle cavity and the crankshaft 4.

[0043] This invention, through the cooperation of the oil baffle 1501 and the crankshaft 4, can achieve the isolation between the oil outlet 40302 of the crankshaft oil passage 403 and the motor cavity 101. In this way, during the high-speed rotation of the motor rotor 3 of the horizontal compressor, the high-pressure refrigerant discharged from the upper muffler 5 into the motor cavity 101 cannot enter the crankshaft oil passage 403 through the oil outlet 40302, thereby reducing the pressure at the oil outlet 40302. Therefore, by effectively utilizing the differential pressure pumping principle, it is easy to effectively pump oil, making the oil supply speed faster and increasing the amount of lubricating oil entering the crankshaft oil passage 403. This invention can universally solve the problem of difficult oil supply in horizontal compressors in the background art. The lubricating oil in the crankshaft oil passage 403 is then indirectly discharged into the motor cavity 101 through the oil outlet 40302 and the oil outlet passage 16.

[0044] In one embodiment, such as Figures 1-4 , Figures 6-7 as well as Figures 14-15 As shown, a counterweight 19 is provided between the oil baffle 1501 and the motor rotor 3, and the oil baffle 1501, the counterweight 19 and the motor rotor 3 are fixedly connected by fasteners.

[0045] By setting the counterweight 19, the moment of inertia of the crankshaft 4 during its rotation along with the motor rotor 3 can be balanced.

[0046] Preferably, the fastener is a bolt 20.

[0047] During assembly, the oil baffle 1501 and the counterweight 19 are first assembled onto the motor rotor 3 using bolts 20, and then the crankshaft 4 is pressed into the shaft hole of the motor rotor 3.

[0048] In one embodiment, such as Figures 1-10As shown, an oil baffle extension wall 1502 is integrally provided on the inner side 150101 of the oil baffle at a position corresponding to the crankshaft oil outlet end 405 around the crankshaft 4. The inner cavity of the oil baffle extension wall 1502 forms an oil baffle cavity. The crankshaft oil outlet end 405 extends into the inner cavity of the oil baffle extension wall 1502, and an oil outlet channel 16 is formed between the oil baffle extension wall 1502 and the crankshaft 4.

[0049] In a first preferred embodiment, the fit clearance between the free end of the oil baffle extension wall 1502 and the crankshaft 4 forms the first oil outlet port 17 of the oil outlet channel 16, see... Figure 2 .

[0050] In this way, the lubricating oil in the crankshaft oil passage 403 is indirectly discharged into the motor cavity 101 through the oil outlet 40302, the oil outlet passage 16 and the first oil outlet port 17.

[0051] This includes the initial oil level of the horizontal compressor in the preferred embodiment of the oil baffle assembly. Figure 11 After 90 cycles of operation, the amount of lubricating oil in crankshaft oil passage 403 is sufficient. Figure 12 This demonstrates that the technical solution adopted in this embodiment facilitates efficient oil pumping.

[0052] For a horizontal compressor including the oil baffle assembly in this preferred embodiment, the average pressure P1 in the motor cavity 101 is greater than the average pressure P2 in the pump body cavity 102 within one cycle, but the average pressure P3 at the oil outlet 40302 of the crankshaft oil passage 403 is less than the average pressure P2 in the pump body cavity 102. Figure 13 Therefore, it is convenient to pump oil effectively.

[0053] In the second preferred embodiment, the free end of the oil baffle extension wall 1502 is sealed to the outer peripheral surface of the crankshaft 4, and the oil baffle extension wall 1502 is provided with a plurality of second oil outlet ports 18 that are connected to the oil outlet channel 16.

[0054] In this way, the lubricating oil in the crankshaft oil passage 403 is indirectly discharged into the motor cavity 101 through the oil outlet 40302, the oil outlet passage 16 and multiple second oil outlet ports 18.

[0055] Among them, such as Figures 6-10 As shown, the free end of the oil baffle extension wall 1502 is sealed to the crankshaft 4 through a sealing ring 21. The sealing ring 21 is located on the inner circumferential surface of the free end of the oil baffle extension wall 1502, or on the outer circumferential surface of the crankshaft 4 near the free end of the oil baffle extension wall 1502.

[0056] Preferably, the sealing convex ring 21 is parallel to the oil baffle plate 1501.

[0057] Among them, the outer peripheral surface of the crankshaft oil outlet end 405 is a radially outwardly expanding sloping surface, and the free end of the oil baffle plate extension wall 1502 is stuck on the sloping surface to achieve a sealing fit.

[0058] Among them, multiple second oil outlet ports 18 are distributed circumferentially along the oil baffle plate extension wall 1502, and the second oil outlet ports 18 are oil outlet grooves and / or oil outlet holes.

[0059] Preferably, the spacing between any two adjacent second oil outlet ports 18 along the circumferential direction of the oil baffle plate extension wall 1502 is equal.

[0060] In one embodiment, such as Figure 14 and Figure 15 As shown, an oil baffle 1503 is provided on the inner side 150101 of the oil baffle plate around the crankshaft 4 at a position corresponding to the crankshaft oil outlet 405. The inner cavity of the oil baffle 1503 forms an oil baffle chamber. The crankshaft oil outlet 405 extends into the inner cavity of the oil baffle 1503. The fit clearance between the groove wall of the oil baffle 1503 and the crankshaft 4 forms an oil outlet channel 16.

[0061] In one embodiment, the oil baffle 1501 is circular, and the cavity wall of the oil baffle cavity is cylindrical. Figures 3-5 , Figures 8-10 as well as Figures 14-15 The axes of the oil baffle 1501, the oil baffle cavity, and the crankshaft 4 are coincident; the outer diameter of the crankshaft 4 is denoted as Dz, the inner diameter of the oil baffle cavity is denoted as Dy, and the height is denoted as Hh, where Dy is controlled to be 1.05Dz-1.5Dz, and the depth of the crankshaft oil outlet 405 extending into the oil baffle cavity is controlled to be 0.2Hh-0.8Hh.

[0062] A horizontal compressor includes the aforementioned oil baffle assembly for a horizontal compressor.

[0063] The pump body of the horizontal compressor also includes an upper muffler 5, an upper cylinder 7, an intermediate plate 8, a lower cylinder 9, a lower cylinder head 10, and a lower muffler 11; the crankshaft 4 passes sequentially through the shaft hole of the upper cylinder head 6, the cavity of the upper cylinder 7, the shaft hole of the intermediate plate 8, the cavity of the lower cylinder 9, and the shaft hole of the lower cylinder head 10. The part of the crankshaft 4 located in the cavity of the upper cylinder 7 is the upper eccentric part 401, and the part located in the cavity of the lower cylinder 9 is the lower eccentric part 402. An upper piston 12 is fixedly fitted on the outer side of the eccentric part 401, and a lower piston 13 is fixedly fitted on the outer side of the lower eccentric part 402; an upper cylinder head external flow hole is provided at the outer edge of the upper cylinder head 6 of the pump body, which connects the motor cavity 101 and the pump body cavity 102; an oil suction port 40301 at one end of the crankshaft oil passage 403 is connected to the pump body cavity 102 through an oil suction pipe 14; a vane 404 is provided in the crankshaft oil passage 403 near the oil suction port 40301.

[0064] In this invention, lubricating oil in the pump body cavity 102 is sequentially drawn into the crankshaft oil passage 403 through the oil suction pipe 14 and the oil suction port 40301. Under the action of the rotating vane 404, the lubricating oil in the crankshaft oil passage 403 is indirectly discharged into the motor cavity 101 through the oil outlet 40302 and the oil outlet passage 16. The lubricating oil in the motor cavity 101 enters the pump body cavity 102 through the upper cylinder head external flow hole at the lower part of the upper cylinder head 6, and the lubricating oil in the pump body cavity 102 then enters the oil suction pipe 14 to form a circulation. In summary, by cooperating with the crankshaft 4, the oil baffle 1501 of this invention can achieve the isolation between the oil outlet 40302 of the crankshaft oil passage 403 and the motor cavity 101, thereby reducing the pressure at the oil outlet 40302 of the crankshaft oil passage 403 and facilitating effective oil pumping.

[0065] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. An oil baffle assembly for a horizontal compressor, the horizontal compressor comprising a housing (1), wherein a motor and a pump body are disposed within the housing (1), the inner cavity of the housing (1) is divided into a motor cavity (101) and a pump body cavity (102) by an upper cylinder head (6) of the pump body, the motor comprising a motor stator (2) and a motor rotor (3), a crankshaft (4) is fixedly inserted into the shaft hole of the motor rotor (3), the crankshaft (4) is provided with a crankshaft oil passage (403) penetrating both ends of the crankshaft (4), one end of the crankshaft (4) corresponding to the oil outlet (40302) of the crankshaft oil passage (403) is a crankshaft oil outlet end (405), the crankshaft oil outlet end (405) extends out of the shaft hole of the motor rotor (3), and the end face of one end of the motor rotor (3) is the first end face (301) of the motor rotor adjacent to the crankshaft oil outlet end (405); characterized in that: The oil baffle assembly includes an oil baffle plate (1501). The oil baffle plate (1501) is disposed on one side of the first end face (301) of the motor rotor and is spaced a certain distance from the first end face (301) of the motor rotor. The oil baffle plate (1501) is fixedly connected to the motor rotor (3). The side of the oil baffle plate (1501) facing the first end face (301) of the motor rotor is the inner side surface (150101) of the oil baffle plate. An oil baffle cavity is provided around the crankshaft (4) at a position corresponding to the crankshaft oil outlet (405). The crankshaft oil outlet (405) extends into the oil baffle cavity to a certain depth. The oil baffle plate (1501) is used to separate the oil outlet (40302) of the crankshaft oil passage (403) from the motor cavity (101). An oil outlet channel (16) is formed between the oil baffle cavity and the crankshaft (4).

2. The oil baffle assembly for a horizontal compressor according to claim 1, characterized in that: A counterweight (19) is provided between the oil baffle (1501) and the motor rotor (3), and the oil baffle (1501), the counterweight (19) and the motor rotor (3) are fixedly connected by fasteners.

3. An oil baffle assembly for a horizontal compressor according to claim 1, characterized in that: An oil baffle extension wall (1502) is integrally provided on the inner side (150101) of the oil baffle at a position corresponding to the crankshaft oil outlet end (405) around the crankshaft (4). The inner cavity of the oil baffle extension wall (1502) forms an oil baffle cavity. The crankshaft oil outlet end (405) extends into the inner cavity of the oil baffle extension wall (1502). An oil outlet channel (16) is formed between the oil baffle extension wall (1502) and the crankshaft (4).

4. An oil baffle assembly for a horizontal compressor according to claim 3, characterized in that: The free end of the extended wall of the oil baffle (1502) and the crankshaft (4) form the first oil outlet port (17) of the oil outlet channel (16) through the fit gap between them.

5. An oil baffle assembly for a horizontal compressor according to claim 3, characterized in that: The free end of the oil baffle extension wall (1502) is sealed to the outer circumferential surface of the crankshaft (4), and the oil baffle extension wall (1502) is provided with a plurality of second oil outlet ports (18) connected to the oil outlet channel (16).

6. An oil baffle assembly for a horizontal compressor according to claim 5, characterized in that: The free end of the oil baffle extension wall (1502) is sealed to the crankshaft (4) through a sealing ring (21). The sealing ring (21) is located on the inner circumferential surface of the free end of the oil baffle extension wall (1502) or on the outer circumferential surface of the crankshaft (4) near the free end of the oil baffle extension wall (1502).

7. An oil baffle assembly for a horizontal compressor according to claim 5, characterized in that: The outer circumferential surface of the crankshaft oil outlet end (405) is a radially outwardly expanding sloping surface, and the free end of the oil baffle extension wall (1502) is engaged on the sloping surface to achieve a sealing fit.

8. An oil baffle assembly for a horizontal compressor according to claim 5, characterized in that: Multiple second oil outlet ports (18) are distributed circumferentially along the oil baffle plate extension wall (1502), and the second oil outlet ports (18) are oil outlet grooves and / or oil outlet holes.

9. An oil baffle assembly for a horizontal compressor according to claim 8, characterized in that: The spacing between any two adjacent second oil outlet ports (18) along the circumference of the oil baffle extension wall (1502) is equal.

10. An oil baffle assembly for a horizontal compressor according to claim 1, characterized in that: On the inner side (150101) of the oil baffle, an oil baffle groove (1503) is provided around the crankshaft (4) at a position corresponding to the crankshaft oil outlet end (405). The inner cavity of the oil baffle groove (1503) forms an oil baffle cavity. The crankshaft oil outlet end (405) extends into the inner cavity of the oil baffle groove (1503). The fit clearance between the groove wall of the oil baffle groove (1503) and the crankshaft (4) forms an oil outlet channel (16).

11. An oil baffle assembly for a horizontal compressor according to claim 1, characterized in that: The oil baffle (1501) is circular, and the cavity wall of the oil baffle cavity is cylindrical. The axes of the oil baffle (1501), the oil baffle cavity, and the crankshaft (4) are coincident. The outer diameter of the crankshaft (4) is denoted as Dz, the inner diameter of the oil baffle cavity is denoted as Dy, and the height is denoted as Hh. Dy is controlled to be 1.05Dz-1.5Dz, and the depth of the crankshaft oil outlet (405) extending into the oil baffle cavity is controlled to be 0.2Hh-0.8Hh.

12. A horizontal compressor, characterized in that: Includes the oil baffle assembly for a horizontal compressor as described in any one of claims 1-11.

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