CN110953158A - Oil storage structure, horizontal scroll compressor and air conditioner - Google Patents

Oil storage structure, horizontal scroll compressor and air conditioner Download PDF

Info

Publication number
CN110953158A
CN110953158A CN201911300262.9A CN201911300262A CN110953158A CN 110953158 A CN110953158 A CN 110953158A CN 201911300262 A CN201911300262 A CN 201911300262A CN 110953158 A CN110953158 A CN 110953158A
Authority
CN
China
Prior art keywords
oil
oil storage
lubricating
storage structure
compressor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201911300262.9A
Other languages
Chinese (zh)
Inventor
魏会军
张俊杰
康小丽
陈肖汕
刘韵
陈江嘉
李雪峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Zhuhai Gree Energy Saving Environmental Protection Refrigeration Technology Research Center Co Ltd
Original Assignee
Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gree Green Refrigeration Technology Center Co Ltd of Zhuhai filed Critical Gree Green Refrigeration Technology Center Co Ltd of Zhuhai
Priority to CN201911300262.9A priority Critical patent/CN110953158A/en
Publication of CN110953158A publication Critical patent/CN110953158A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02Lubrication; Lubricant separation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04CROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02Lubrication; Lubricant separation
    • F04C29/026Lubricant separation

Abstract

The invention provides an oil storage structure, a horizontal scroll compressor and an air conditioner, wherein the oil storage structure comprises: the lubricating oil is collected into an oil pool in the oil storage cavity, the oil storage cavity is isolated from a motor assembly of the compressor, and the oil storage cavity can supply oil to a central oil hole of the crankshaft piece; and one end of the oil return pipe is communicated with the oil storage cavity, the other end of the oil return pipe is communicated with the lubricating part of the compressor, and lubricating oil supplied to the lubricating part from the central oil hole flows back to the oil storage cavity through the oil return pipe after the lubricating operation is finished. The oil storage structure of the invention prevents the direct contact between the lubricating oil and the motor rotor, when the compressor runs, the rotor can not stir the lubricating oil in a large area, the supply stability of the lubricating oil is improved, meanwhile, an oil pool with a certain oil level height is formed in the lubricating oil in the oil storage cavity, the liquid level of the oil pool is stable, the oil pool is closer to the central oil hole of the crankshaft, and the sufficient lubricating oil can be provided for lubricating each friction pair in the compressor system.

Description

Oil storage structure, horizontal scroll compressor and air conditioner
Technical Field
The invention belongs to the technical field of air conditioners, and particularly relates to an oil storage structure, a horizontal scroll compressor and an air conditioner.
Background
Horizontal scroll compressor is at the operation in-process, because its reason of placing, a large amount of flats of lubricating oil are in the compressor bottom, and in rotor partly can dip into lubricating oil, these lubricating oil of in-process of rotor pivoted can stir in a large number, make it splash in compressor housing, influence the stable supply of lubricating oil.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is that lubricating oil in the scroll compressor cannot be stably supplied, so that an oil storage structure, a horizontal scroll compressor and an air conditioner are provided.
In order to solve the above problems, the present invention provides an oil storage structure including:
the lubricating oil is collected into an oil pool in the oil storage cavity, the oil storage cavity is isolated from a motor assembly of the compressor, and the oil storage cavity can supply oil to a central oil hole of the crankshaft piece;
and one end of the oil return pipe is communicated with the oil storage cavity, the other end of the oil return pipe is communicated with the lubricating part of the compressor, and lubricating oil supplied to the lubricating part from the central oil hole flows back to the oil storage cavity through the oil return pipe after the lubricating operation is finished.
The object of the present invention and the technical problems solved thereby can be further achieved by the following technical measures.
Preferably, the end of the crank member remote from the scroll assembly is provided with an oil pump device for drawing lubricating oil from an oil pool of the oil storage chamber and injecting the lubricating oil into the central oil hole.
Preferably, the oil pump device is provided with an oil supply pipe, and the tail end of the oil supply pipe extends to a position below the liquid level of the oil pool in the oil storage cavity.
Preferably, the oil storage structure further comprises an air suction oil separation chamber, the air suction oil separation chamber is provided with an air suction port, refrigerant sucked by the compressor enters the air suction oil separation chamber through the air suction port to be subjected to oil-gas separation and then is discharged into the compressor, and lubricating oil separated by the air suction oil separation chamber flows to the oil storage cavity.
Preferably, an oil separator is arranged in the air suction oil separation chamber, and the oil separator is provided with an air outlet.
Preferably, the oil storage structure is further provided with an air suction cavity, the air suction cavity is separated from the oil storage cavity through an oil-gas separation plate, and the air suction cavity is communicated with the air outlet.
Preferably, the oil storage structure further comprises a first shell and a second shell, the first shell is concave, and the oil storage cavity is arranged between the first shell and the second shell.
Preferably, the second housing is provided with a mounting hole, one end of the crankshaft is mounted in the mounting hole, the end of the crankshaft penetrates out of the second housing, and/or the second housing is provided with a compressed air inlet, and a refrigerant in the suction cavity enters the compressor through the compressed air inlet.
Preferably, the oil-gas separation chamber is enclosed by a first partition member integrally formed on the inner wall of the first housing and/or an inner wall of the first housing.
Preferably, the vertical height of the oil return pipe is gradually reduced from the lubricating part to the direction of the oil storage cavity.
Preferably, the inner wall of the shell of the compressor is provided with a groove, and the oil return pipe is arranged in the groove.
A horizontal scroll compressor adopts any one of the oil storage structures.
An air conditioner adopts any one of the oil storage structures.
The oil storage structure, the horizontal scroll compressor and the air conditioner provided by the invention at least have the following beneficial effects:
the oil storage structure can intensively store the lubricating oil of the compressor, and avoids the direct contact between the lubricating oil and the motor rotor, when the compressor runs, the rotor can not stir the lubricating oil in a large area, so that the supply stability of the lubricating oil is improved, meanwhile, an oil pool with a certain oil level height is formed in the lubricating oil storage cavity, the liquid level of the oil pool is stable, the oil pool is closer to the central oil hole of the crankshaft, and the sufficient lubricating oil can be provided to lubricate each friction pair in the compressor system.
Drawings
FIG. 1 is a schematic structural diagram of an oil storage structure according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of an oil separator according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a first housing according to an embodiment of the invention;
fig. 4 is a partial structural schematic diagram of the second housing according to the embodiment of the invention.
The reference numerals are represented as:
1. an oil storage chamber; 2. an oil sump; 3. a motor assembly; 4. a crankshaft piece; 5. a central oil hole; 6. an oil return pipe; 7. a lubricating section; 8. a scroll assembly; 9. an oil pump device; 10. an oil supply pipe; 11. an intake oil separation chamber; 12. an air suction port; 13. an oil separator; 14. an air outlet; 15. an oil outlet; 16. an air suction cavity; 17. an oil-gas separation plate; 18. a first housing; 19. a second housing; 20. mounting holes; 21. a groove; 22. compressing the air inlet; 23. a first divider member; 24. an upper bracket oil hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, an embodiment of the present invention provides an oil storage structure, including: the lubricating oil storage device comprises an oil storage cavity 1, wherein lubricating oil is stored in the oil storage cavity 1, the lubricating oil is converged into an oil pool 2 in the oil storage cavity 1, the oil storage cavity 1 is isolated from a motor assembly 3 of the compressor, and the oil storage cavity 1 can supply oil to a central oil hole 5 of a crankshaft 4; and one end of the oil return pipe 6 is communicated with the oil storage cavity 1, the other end of the oil return pipe 6 is communicated with the lubricating part 7 of the compressor, and lubricating oil supplied to the lubricating part 7 by the central oil hole 5 flows back to the oil storage cavity 1 through the oil return pipe 6 after the lubricating operation is finished.
The oil storage structure provided by the embodiment of the invention can intensively store the lubricating oil of the compressor, so that the direct contact between the lubricating oil and the motor rotor is avoided, the rotor does not stir the lubricating oil in a large area when the compressor runs, the supply stability of the lubricating oil is improved, meanwhile, an oil pool with a certain oil level height is formed in the lubricating oil in the oil storage cavity 1, the liquid level of the oil pool is stable, the oil pool is closer to the central oil hole of the crankshaft, and the sufficient lubricating oil can be provided to lubricate each friction pair in the compressor system.
The lubricating part 7 of the embodiment of the invention mainly comprises a main bearing, an auxiliary bearing and a scroll assembly 8 of the crankshaft part 4 and other parts needing to be lubricated. The central oil hole 5 and the oil return pipe 6 form a complete lubricating oil circulation loop, the lubricating oil is not exposed in a cavity where the motor assembly 3 is located, little or no lubricating oil is basically arranged in a rotor part of the motor assembly 3, and the technical problems in the prior art can not occur. In order to prevent the lubricated oil from flowing into the oil storage cavity 1, the main bearing and the auxiliary bearing are sealed by shaft seal structures.
In order to ensure smooth oil return of the lubricating part 7, an upper bracket oil hole 24 is formed in the upper bracket, and lubricating oil which finishes lubricating is introduced into the oil return pipe 6 through the upper bracket oil hole 24 and flows back to the oil storage chamber 1 through the oil return pipe 6.
Preferably, in order to ensure that the crank member 4 can smoothly draw up the lubricating oil, the end of the crank member 4 far away from the scroll assembly 8 is provided with an oil pump device 9, and the oil pump device 9 is used for pumping the lubricating oil from the oil pool 2 of the oil storage chamber 1 and injecting the lubricating oil into the central oil hole 5.
Preferably, and taking into account that the level of the lubricating oil in the oil reservoir 2 may not reach the inlet of the oil pump device 9, the oil pump device 9 is provided with an oil feed pipe 10, the end of the oil feed pipe 10 extending below the level of the oil reservoir 2 in the oil reservoir 1, ensuring that the oil pump device 9 obtains a sufficient amount of oil.
Considering that a part of lubricating oil is mixed in the refrigerant sucked by the compressor, and the part of lubricating oil can reduce the refrigeration energy efficiency of the refrigerant, the oil storage structure of the embodiment further comprises an air suction oil separation chamber 11, the air suction oil separation chamber 11 is provided with an air suction port 12, the refrigerant sucked by the compressor enters the air suction oil separation chamber 11 through the air suction port 12 to be subjected to oil-gas separation and then is sucked into a pump body of the compressor to be compressed, and the lubricating oil separated from the air suction oil separation chamber 11 flows to the oil storage cavity 1. Specifically, an oil separator 13 is arranged in the intake oil separation chamber 11, and the oil separator 13 is provided with an air outlet 14 and an oil outlet 15.
Preferably, after the refrigerant flowing through the oil separator 13 is successfully subjected to oil-gas separation, the gas refrigerant is ensured not to contact with lubricating oil as much as possible, so that the oil storage structure is further provided with a suction cavity 16, the suction cavity 16 is separated from the oil storage cavity 1 by an oil-gas separation plate 17, and the suction cavity 16 is communicated with the gas outlet 14.
Preferably, in view of the structure of the existing horizontal scroll compressor, in order to reduce the structural change of the horizontal scroll compressor as much as possible, the oil storage structure further comprises a first housing 18 and a second housing 19, the first housing 18 is concave, the oil storage chamber 1 is arranged between the first housing 18 and the second housing 19, the second housing 19 is provided with a mounting hole 20, one end of the crankshaft 4 is mounted in the mounting hole 20, and the end of the crankshaft 4 penetrates out of the second housing 19. The second housing 19 is actually modified from the original end cover of the compressor.
Preferably, the oil-gas separation chamber is enclosed by a first partition member 23 with the inner wall of the first housing 18, the first partition member 23 being integrally formed on the inner wall of the first housing 18, and/or the oil-gas separation plate 17 being integrally formed on the inner wall of the first housing 18. A concave first shell 18 is additionally arranged on the outer side of the end cover of the compressor and buckled on a second shell 19 to form a closed cavity, and the cavity is divided into three parts, namely an oil-gas separation chamber 11, a suction chamber 16 and an oil storage chamber 1, through a first partition plate part 23 and an oil-gas partition plate 17.
Preferably, in order to improve the oil return effect, the vertical height of the oil return pipe 6 is gradually decreased from the lubricating part 7 to the direction of the oil storage chamber 1, that is, the oil return pipe 6 is placed at a certain inclination angle at the bottom of the compressor housing, and in consideration of manufacturability, a groove 21 with an inclination angle is formed at a corresponding position at the bottom of the housing, and the oil return pipe 6 is placed in the groove 21. In order to ensure an effective oil return effect, at least one, preferably a plurality of oil return pipes 6 may be provided.
When the compressor is running, under the action of the oil pump device 9, the lubricating oil in the oil pool 2 is introduced into the central oil hole 5 of the crankshaft 4, and then flows to each moving part along the hole, and the lubrication of the moving parts is completed. In order to prevent lubricating oil from falling into the bottom of the compressor under the action of gravity in the lubricating process, shaft seal structures are adopted in the auxiliary shaft neck and the main shaft neck, and the part of a shaft seal inner ring, which is in contact with a crankshaft, is sealed by adopting wear-resistant material PTFE and prevents friction between a shaft seal piece and the surface of the crankshaft.
A horizontal scroll compressor adopts any one of the oil storage structures.
An air conditioner adopts any one of the oil storage structures.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims (13)

1. An oil storage structure, characterized by comprising:
the lubricating oil storage device comprises an oil storage cavity (1), wherein lubricating oil is stored in the oil storage cavity (1), the lubricating oil is converged into an oil pool (2) in the oil storage cavity (1), the oil storage cavity (1) is isolated from a motor assembly (3) of the compressor, and the oil storage cavity (1) can supply oil to a central oil hole (5) of a crankshaft piece (4);
the oil return pipe (6), the one end intercommunication of returning oil pipe (6) oil storage chamber (1), lubricating portion (7) of other end intercommunication compressor, lubricating oil that central oilhole (5) supplied to lubricating portion (7), after accomplishing lubricated work, the warp return oil pipe (6) flow back to oil storage chamber (1).
2. An oil storage structure according to claim 1, wherein the end of the crank member (4) remote from the scroll assembly (8) is provided with an oil pump device (9), and the oil pump device (9) is used for drawing lubricating oil from the oil pool (2) of the oil storage chamber (1) and injecting the lubricating oil into the central oil hole (5).
3. An oil storage structure according to claim 2, characterized in that the oil pump device (9) is provided with an oil feed pipe (10), and the end of the oil feed pipe (10) extends to a position below the liquid level of the oil pool (2) in the oil storage chamber (1).
4. The oil storage structure according to claim 1, further comprising a getter-oil separation chamber (11), wherein the getter-oil separation chamber (11) is provided with a suction port (12), refrigerant sucked by a compressor enters the getter-oil separation chamber (11) through the suction port (12) for oil-gas separation and then is discharged into the compressor, and lubricant oil separated by the getter-oil separation chamber (11) flows to the oil storage chamber (1).
5. An oil storage structure according to claim 4, wherein an oil separator (13) is provided in the intake oil separation chamber (11), and the oil separator (13) is provided with an air outlet (14).
6. The oil storage structure of claim 5, characterized in that the oil storage structure is further provided with an air suction cavity (16), the air suction cavity (16) is separated from the oil storage cavity (1) through an oil-gas separation plate (17), and the air suction cavity (16) is communicated with the air outlet (14).
7. An oil storage structure according to claim 5, further comprising a first housing (18), a second housing (19), said first housing (18) being concave, said oil storage chamber (1) being provided between said first housing (18) and said second housing (19).
8. The oil storage structure according to claim 7, wherein the second housing (19) is provided with a mounting hole (20), one end of the crankshaft (4) is mounted in the mounting hole (20), and the end of the crankshaft (4) penetrates through the second housing (19), and/or a compression air inlet is formed in the second housing (19), and the refrigerant in the air suction cavity (16) enters the compressor through the compression air inlet.
9. An oil and gas storage structure according to claim 7, characterized in that the oil and gas separation chamber is enclosed by a first partition member integrally formed on the inner wall of the first casing (18) and the inner wall of the first casing (18), and/or the oil and gas partition plate (17) is integrally formed on the inner wall of the first casing (18).
10. The oil storage structure according to any one of claims 1 to 9, wherein the vertical height of the oil return pipe (6) decreases from the lubricating portion (7) toward the oil storage chamber (1), and/or the number of the oil return pipes (6) is at least one.
11. An oil storage structure according to claim 10, characterized in that the inner wall of the shell of the compressor is provided with a groove (21), and the oil return pipe (6) is arranged in the groove (21).
12. A horizontal scroll compressor characterized by employing the oil storage structure according to any one of claims 1 to 11.
13. An air conditioner characterized by employing the oil storage structure according to any one of claims 1 to 11.
CN201911300262.9A 2019-12-16 2019-12-16 Oil storage structure, horizontal scroll compressor and air conditioner Pending CN110953158A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911300262.9A CN110953158A (en) 2019-12-16 2019-12-16 Oil storage structure, horizontal scroll compressor and air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911300262.9A CN110953158A (en) 2019-12-16 2019-12-16 Oil storage structure, horizontal scroll compressor and air conditioner

Publications (1)

Publication Number Publication Date
CN110953158A true CN110953158A (en) 2020-04-03

Family

ID=69982171

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201911300262.9A Pending CN110953158A (en) 2019-12-16 2019-12-16 Oil storage structure, horizontal scroll compressor and air conditioner

Country Status (1)

Country Link
CN (1) CN110953158A (en)

Similar Documents

Publication Publication Date Title
KR870001784B1 (en) Scroll compressor
CN100366913C (en) Horizontal rotary compressor
CN1982714B (en) Oil pump for scroll compressor
RU2600206C1 (en) Scroll compressor
CN202926628U (en) Compressor and refrigerating device
JP2007315261A (en) Hermetic compressor
CN204003477U (en) Horizontal compressor
CN202789539U (en) Oil return device of scroll compressor
US4391573A (en) Horizontal rotary compressor with oil forced by gas discharge into crankshaft bore
CN211778004U (en) Oil storage structure, horizontal scroll compressor and air conditioner
CN110953158A (en) Oil storage structure, horizontal scroll compressor and air conditioner
CN108087276B (en) Low back pressure compressor
US11781548B2 (en) Oil separation apparatus and horizontal compressor
CN209244821U (en) Scroll compressor having a plurality of scroll members
JP2017025789A (en) Rotary compressor
CN203906297U (en) Horizontal type and rotary type compressor
CN207229384U (en) Horizontal scroll compressor
CN114109834B (en) Compressor oil guide assembly and compressor
CN219101595U (en) Auxiliary bearing oil supply assembly and horizontal scroll compressor
CN103982438A (en) Horizontal type rotary compressor
CN214698328U (en) Low-oil-quantity rotary compressor
JP2007247624A (en) Hermetic compressor
CN209129847U (en) Eccentric bushing and screw compressor
CN110319005B (en) Rotary compressor
CN219932448U (en) Compressor and refrigeration equipment

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination