WO2019137036A1

WO2019137036A1 - Compressor and air conditioner having same

Info

Publication number: WO2019137036A1
Application number: PCT/CN2018/105747
Authority: WO
Inventors: 李旺宏; 陈泉; 王勇; 雷卫东; 谢利昌; 周学怀; 李永贵
Original assignee: 珠海凌达压缩机有限公司; 珠海格力电器股份有限公司
Priority date: 2018-01-11
Filing date: 2018-09-14
Publication date: 2019-07-18
Also published as: CN108105093A

Abstract

A compressor (1) and an air conditioner having same. The compressor (1) comprises: a housing (20), a rotor compression part provided within the housing (20), a vortex compression part provided within the housing (20) and arranged at one side of the rotor compression part, and a refrigerant that is compressed by the rotor compression part, introduced into the vortex compression part for recompression, and then discharged from the housing (20). The compressor (1) combines a rotating rotor-type compression structure and a vortex-type compression structure so as to implement effects of a two-stage compressor, thus effectively increasing the performance of the compressor (1). The compressor (1) is structurally simple, compact, lightweight, and highly reliable, combines the advantages of the structures of a rotor compressor and of a vortex compressor, satisfies requirements for a large volume with one compressor (1), and increases the applicability and reliability of the compressor (1).

Description

Compressor and air conditioner having the same

Technical field

The present invention relates to the field of air conditioner equipment, and in particular to a compressor and an air conditioner having the same.

Background technique

In the prior art, large and medium-sized units and refrigeration and refrigeration industries on the market generally adopt multi-stage parallel regulation (multiple compressors are used in parallel) in the refrigeration system to meet the demand of large capacity (high cooling capacity or high heating capacity). However, with the compressor equipment of the prior art, there are problems of complicated system, high control difficulty, and difficulty in returning oil to the system.

Summary of the invention

SUMMARY OF THE INVENTION A primary object of the present invention is to provide a compressor and an air conditioner having the same that solve the problems of the complicated compressor equipment system in the prior art.

In order to achieve the above object, according to an aspect of the invention, a compressor includes: a housing; a rotor compression portion disposed in the housing; and a scroll compression portion disposed in the housing and located at one side of the rotor compression portion The refrigerant is compressed by the rotor compression portion, enters the scroll compression portion, is compressed again, and is discharged outside the casing.

Further, the rotor compression portion includes a pump body assembly, and the pump body assembly includes: a cylinder having an air suction port and an exhaust passage, wherein the refrigerant enters the cylinder through the suction port and is compressed into the inner cavity of the casing through the exhaust passage. And enter the scroll compression section to perform compression again.

Further, the plurality of cylinders have an intake port and an exhaust passage, and the exhaust passages of the plurality of cylinders are all in communication with the inner cavity of the housing.

Further, the scroll compression portion includes: a fixed scroll; an orbiting scroll, the orbiting scroll is meshed with the fixed scroll to form a compression chamber, and the fixed scroll is opened for communicating with the housing. The inner cavity and the suction chamber of the compression chamber, the refrigerant compressed by the cylinder enters the compression chamber through the suction chamber to be compressed again.

Further, the compressor further includes: a high and low pressure partition plate, the high and low pressure partition plates are disposed on the outer side of the movable scroll, and a side of the high and low pressure partition plates away from the movable scroll and the inner wall of the casing are formed. The high-pressure exhaust chamber is provided with a scroll exhaust port connecting the compression chamber and the high-pressure exhaust chamber.

Further, the compressor further includes: an exhaust pipe that communicates with the high pressure exhaust cavity, and the exhaust pipe is configured to discharge the refrigerant in the high pressure exhaust cavity to the outside of the casing.

Further, the compressor further includes: a crankshaft, the first end of the crankshaft is provided with an eccentric portion, the eccentric portion is located in the cylinder, the first end of the crankshaft is connected with the movable scroll; the driving portion, the driving portion is connected with the crankshaft and located Between the cylinder and the fixed scroll, the driving portion drives the crankshaft to rotate the pump body assembly and the orbiting scroll.

Further, an oil passage is provided in the longitudinal direction of the crankshaft.

Further, the compressor further includes: an oil pump disposed on the first end of the crankshaft for pumping oil into the pump body assembly and/or the oil passage.

Further, the compressor further includes: a liquid storage device, wherein the liquid outlet of the liquid storage device is in communication with the air inlet.

According to another aspect of the present invention, an air conditioner including a compressor, which is the above-described compressor, is provided.

By applying the technical solution of the present invention, the rolling rotor compression structure and the scroll compression structure are combined to realize the efficiency of the two-stage compressor, and the performance of the compressor can be effectively improved. The compressor has the advantages of simple structure, small volume, light weight and high reliability. The compressor combines the advantages of the rotor compressor and the scroll compressor structure, and can realize the requirement of one compressor to meet the large capacity and improve the compressor. Practicality and reliability.

DRAWINGS

The accompanying drawings, which are incorporated in the claims of the claims In the drawing:

Figure 1 shows a schematic structural view of an embodiment of a compressor according to the present invention;

Figure 2 is a schematic view showing the structure of an embodiment of a rotor compression portion according to the present invention;

Figure 3 is a schematic view showing the structure of an embodiment of a cylinder of a rotor compression portion according to the present invention;

Figure 4 is a schematic view showing the structure of an embodiment of a scroll compression portion according to the present invention;

Fig. 5 is a view showing the structure of an embodiment of an air conditioner according to the present invention.

Wherein, the above figures include the following reference numerals:

1, compressor; 2, four-way valve; 3, condenser; 4, throttling device; 5, evaporator; 6, suction port; 7, exhaust port; 8, scroll compression structure; Rotor type compression structure; 10, lubricating oil; 11, rolling rotor type compression chamber; 11a, low pressure chamber; 11b, high pressure chamber; 12, scroll compression chamber; 12a, first compression chamber; 12b, second compression chamber; 12c, third compression chamber; 12d, fourth compression chamber; 13, reservoir; 14, drive portion; 14a, stator; 14b, rotor; 15, crankshaft; 16, oil passage; 17, oil pump; Partition plate; 19, high pressure exhaust chamber; 20, housing; 21, suction port; 22, cylinder; 23, roller; 24, exhaust passage; 25, upper flange exhaust port; 27, spring; 28, lower flange; 29, partition; 30, upper flange; 31, lower muffler; 32, upper muffler; 33, suction chamber; 34, vortex exhaust; 35, static vortex Rotary disk; 36, exhaust chamber; 37, moving scroll.

Detailed ways

It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The invention will be described in detail below with reference to the drawings in conjunction with the embodiments.

It is to be noted that the terminology used herein is for the purpose of describing particular embodiments, and is not intended to limit the exemplary embodiments. As used herein, the singular " " " " " " There are features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a specific order or order. It is to be understood that the terms so used are interchangeable as appropriate, such that the embodiments of the invention described herein can be implemented, for example, in a sequence other than those illustrated or described herein. In addition, the terms "comprises" and "comprises" and "the" and "the" are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to Those steps or units may include other steps or units not explicitly listed or inherent to such processes, methods, products or devices.

For convenience of description, spatially relative terms such as "above", "above", "on top", "above", etc., may be used herein to describe as in the drawings. The spatial positional relationship of one device or feature to other devices or features. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation of the device described. For example, if the device in the figures is inverted, the device described as "above other devices or configurations" or "above other devices or configurations" will be positioned "below other devices or configurations" or "at Under other devices or configurations." Thus, the exemplary term "above" can include both "over" and "under". The device can also be positioned in other different ways (rotated 90 degrees or at other orientations) and the corresponding description of the space used herein is interpreted accordingly.

Exemplary embodiments in accordance with the present application will now be described in more detail with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. It is to be understood that the embodiments are provided so that this disclosure will be thorough and complete, and the concept of the exemplary embodiments will be fully conveyed to those skilled in the art, in which The thicknesses of the layers and regions are denoted by the same reference numerals, and the description thereof will be omitted.

In conjunction with Figures 1 through 5, a compressor is provided in accordance with an embodiment of the present invention.

Specifically, as shown in FIG. 1, the compressor includes a housing 20, a rotor compression portion, and a scroll compression portion. The rotor compression portion is disposed in the housing 20. The scroll compression portion is provided in the casing 20 and located on one side of the rotor compression portion. The refrigerant is compressed by the rotor compression portion, enters the scroll compression portion, is compressed again, and is discharged outside the casing 20.

In the present embodiment, the rolling rotor compression structure and the scroll compression structure are combined to realize the efficiency of the two-stage compressor, and the performance of the compressor can be effectively improved. The compressor has the advantages of simple structure, small volume, light weight and high reliability. The compressor combines the advantages of the rotor compressor and the scroll compressor structure, and can realize the requirement of one compressor to meet the large capacity and improve the compressor. Practicality and reliability.

As shown in FIGS. 2 and 3, the rotor compression portion includes a pump body assembly including a cylinder 22. The cylinder 22 has an intake port 21 and an exhaust passage 24, and the refrigerant enters the cylinder 22 through the intake port 21, is compressed, and is discharged into the inner cavity of the casing 20 through the exhaust passage 24 and enters the scroll compression portion for recompression. This arrangement enables the rotor compression portion to form a primary compression mechanism, and the scroll compression portion forms a secondary compression mechanism, that is, the compressor using the structure can achieve secondary compression, effectively improving the compression performance of the compressor.

Preferably, in order to further increase the compression amount of the compressor, the cylinders 22 may be provided in plurality. The plurality of cylinders 22 each have an intake port 21 and an exhaust passage 24, and the exhaust passages of the plurality of cylinders 22 are all in communication with the inner cavity of the housing 20.

As shown in FIG. 4, the scroll compression portion includes a fixed scroll 35 and an orbiting scroll 37. The movable scroll 37 is disposed in mesh with the fixed scroll 35 to form a compression chamber, and the fixed scroll 35 is provided with an intake chamber 33 for communicating the inner chamber of the housing 20 with the compression chamber, through the cylinder 22 The compressed refrigerant enters the compression chamber through the suction chamber 33 to be compressed again. This arrangement can effectively improve the compression performance of the compressor.

As shown in FIG. 1, the compressor further includes a high and low pressure partition plate 18. The high and low pressure partition plates 18 are disposed on the outer side of the orbiting scroll 37, and a high pressure exhaust chamber 19 is formed between the side of the high and low pressure partition plates 18 away from the movable scroll 37 and the inner wall of the casing 20, and the fixed scroll The disk 35 is provided with a scroll exhaust port 34 that communicates with the compression chamber and the high pressure exhaust chamber 19. The arrangement is such that the refrigerant compressed by the scroll compression portion can be discharged into the high pressure exhaust chamber 19 through the swirl exhaust port 34.

Further, the compressor further includes an exhaust pipe 7. The exhaust pipe 7 communicates with a high pressure exhaust chamber 19 for discharging the refrigerant in the high pressure exhaust chamber 19 to the outside of the casing 20.

The compressor further includes a crankshaft 15, a drive portion 14, and an oil pump 17. The first end of the crankshaft 15 is provided with an eccentric portion, the eccentric portion is located in the cylinder 22, and the first end of the crankshaft 15 is connected to the orbiting scroll 37. The driving portion 14 is connected to the crankshaft 15 and located between the cylinder 22 and the fixed scroll 35. The driving portion 14 drives the crankshaft 15 to rotate to perform a compression operation of the pump body assembly and the orbiting scroll 37. Among them, the roller 23 is sleeved on the eccentric portion. In order to improve the compression performance of the compressor, the oil passage 16 is disposed in the longitudinal direction of the crankshaft 15. The oil pump 17 is disposed on the first end of the crankshaft 15. The oil pump 17 is used to pump oil into the pump body assembly and the oil passage 16, which effectively improves the reliability of the compressor. Preferably, the oil pump 17 is a centrifugal oil pump, such that the lubrication and sealing of the compressor are more reliable.

Further, the compressor further includes a reservoir 13. The liquid outlet of the accumulator 13 is in communication with the suction port 21. This arrangement can further improve the reliability and stability of the compressor.

The compressor in the above embodiment can also be used in the technical field of air conditioner equipment, that is, according to another aspect of the present invention, an air conditioner is provided. The air conditioner includes a compressor which is the compressor in the above embodiment. The compressor includes a housing 20, a rotor compression portion, and a scroll compression portion. The rotor compression portion is disposed in the housing 20. The scroll compression portion is provided in the casing 20 and located on one side of the rotor compression portion. The refrigerant is compressed by the rotor compression portion, enters the scroll compression portion, is compressed again, and is discharged outside the casing 20.

Specifically, the lower portion of the compressor is a rolling rotor type compression structure 9, and the upper portion is a scroll compression structure 8. The drive unit 14 is an electric motor including a stator 14a and a rotor 14b. An electric motor is disposed within the housing 20 for driving the crankshaft 15 and rotating about a central axis of the crankshaft 15. The structure of the rolling rotor compression structure is as shown in the figure, and the closed flange is composed of the lower flange 28, the upper flange 30 and the cylinder 22. The eccentric portion of the crankshaft drives the roller 23 to perform a rotary motion, and the sliding piece 26 is biased by the spring 27. The end portion is brought into close contact with the roller 23, and the rolling rotor type compression chamber 11 is divided by the sliding piece 26 into the low pressure chamber 11a and the high pressure chamber 11b, and the slider 26 reciprocates along the groove on the cylinder as the motor rotates.

The refrigerant enters the rolling rotor compression chamber from the suction port 6 of the accumulator through the accumulator 13 and enters the low pressure chamber from the suction port of the cylinder. As the motor drives the crankshaft to rotate, the gas pressure in the low pressure chamber and the high pressure chamber is closed. The size varies with the size of the volume to complete the first stage of compression.

The rolling rotor compression structure is divided into upper and lower compression chambers (ie, two cylinders) separated by a partition plate 29. The intermediate stage pressure gas of the lower chamber is discharged from the upper flange exhaust port 25 into the exhaust chamber composed of the lower flange 28 and the lower muffler 31, and then passes through the exhaust passage 24 between the parts of the rolling rotor compression structure. It is mixed with the intermediate stage pressure gas compressed by the upper compression chamber, and finally discharged from the exhaust hole on the upper muffler 32 to the inside of the casing 20 of the compressor.

As shown in FIG. 4, the scroll compression structure 8 is mainly composed of a fixed scroll 35, an orbiting scroll 37, an anti-rotation mechanism, a frame, etc., and is realized by a periodic change of a closed volume formed by the mutual engagement of the wraps. Intake, compression and venting of gases. The intermediate stage pressure gas is sucked into the scroll compression chamber 12 from the suction chamber 33, and the compression process is gradually performed from the outside to the inside, and the first compression chamber 12a, the second compression chamber 12b, the third compression chamber 12c, and the fourth compression chamber 12d are The pressure is gradually increased, and the high pressure gas is discharged from the exhaust chamber 36 on the fixed scroll 35 to the high pressure exhaust chamber 19 formed by the casing 20 and the high and low pressure partition plates 18, and then enters the refrigeration cycle system from the exhaust pipe 7. , thus completing the second level of compression.

The refrigeration cycle system of the air conditioner works as follows: the refrigeration cycle system is composed of a compressor 1, a four-way valve 2, a condenser 3, a throttling device 4, and an evaporator 5. The compressor 1 is subjected to two-stage compression to discharge a high-temperature high-pressure gaseous refrigerant, enters the condenser 3, is cooled and condensed to a supercooled liquid, and then the refrigerant liquid flows through the throttling device 4, and is equalized into a saturated liquid. The saturated liquid absorbs heat in the evaporator 5, and the refrigerant becomes a low-pressure gas and returns to the compressor through the suction port 6 to complete a refrigeration cycle. Figure 1 shows a schematic diagram of the pressure state of each part of the compressor during operation.

In order to ensure long-term reliable operation of the compressor, the compressor of the present invention passes the oil pump 17, and under the action of centrifugal force, the lubricating oil 10 at the bottom of the compressor rises through the oil passage 16 to each axial passage and radial passage, and flows in. Each lubrication point ensures the tightness of each compression chamber and prevents dry friction and abnormal wear between the compression parts.

In addition to the above, it should be noted that "one embodiment", "another embodiment", "an embodiment" and the like referred to in the specification refers to a specific feature, structure or structure described in connection with the embodiment. Features are included in at least one embodiment of the general description of the application. The appearance of the same expression in various places in the specification does not necessarily refer to the same embodiment. Further, when a particular feature, structure, or feature is described in conjunction with any embodiment, it is claimed that such features, structures, or characteristics are also included in the scope of the invention.

In the above embodiments, the descriptions of the various embodiments are different, and the details that are not detailed in a certain embodiment can be referred to the related descriptions of other embodiments.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

A compressor, comprising:

Housing (20);

a rotor compression portion disposed in the housing (20);

a scroll compression portion is disposed in the casing (20) and located on one side of the rotor compression portion, and the refrigerant is compressed by the rotor compression portion, enters the scroll compression portion, and is compressed again to discharge the casing. Outside the body (20).
The compressor according to claim 1, wherein said rotor compression portion comprises a pump body assembly, and said pump body assembly comprises:

a cylinder (22) having an intake port (21) and an exhaust passage (24), and the refrigerant enters the cylinder (22) through the intake port (21) and is compressed and passed through The exhaust passage (24) is discharged into the inner cavity of the casing (20) and enters the scroll compression portion for recompression.
The compressor according to claim 2, wherein said plurality of cylinders (22) are plural, and said plurality of said cylinders (22) each have an intake port (21) and an exhaust passage (24), a plurality of The exhaust passages of the cylinders (22) are all in communication with the inner cavity of the housing (20).
The compressor according to claim 2, wherein said scroll compression portion comprises:

Static scroll (35);

a scroll (37), the orbiting scroll (37) is engaged with the fixed scroll (35) to form a compression chamber, and the fixed scroll (35) is provided for opening Connecting the inner cavity of the casing (20) with the suction chamber (33) of the compression chamber, and the refrigerant compressed by the cylinder (22) enters the compression chamber through the suction chamber (33) Recompress it indoors.
The compressor according to claim 4, wherein said compressor further comprises:

a high and low pressure partition plate (18), the high and low pressure partition plate (18) is disposed outside the movable scroll (37), and the high and low pressure partition plate (18) is away from the movable scroll A high pressure exhaust chamber (19) is formed between one side of the disc (37) and an inner wall of the casing (20), and the static scroll (35) is open to communicate with the compression chamber and the high pressure The venting opening (34) of the exhaust chamber (19).
The compressor according to claim 5, wherein said compressor further comprises:

An exhaust pipe (7) communicating with the high pressure exhaust chamber (19) for venting the high pressure exhaust chamber (19) The refrigerant is discharged to the outside of the casing (20).
The compressor according to claim 4, wherein said compressor further comprises:

a crankshaft (15), a first end of the crankshaft (15) is provided with an eccentric portion, the eccentric portion is located in the cylinder (22), a first end of the crankshaft (15) and the orbiting scroll (37) connected;

a driving portion (14), the driving portion (14) is connected to the crankshaft (15) and located between the cylinder (22) and the fixed scroll (35), the driving portion (14) The crankshaft (15) is driven to rotate to perform compression operations on the pump body assembly and the orbiting scroll (37).
The compressor according to claim 7, characterized in that the crankshaft (15) is provided with an oil passage (16) in the longitudinal direction.
The compressor according to claim 8, wherein said compressor further comprises:

An oil pump (17), the oil pump (17) is disposed on the first end of the crankshaft (15), and the oil pump (17) is used in the pump body assembly and/or the oil passage (16) Pump oil.
The compressor according to claim 2, wherein said compressor further comprises:

The accumulator (13), the liquid outlet of the accumulator (13) is in communication with the suction port (21).
An air conditioner comprising a compressor, characterized in that the compressor is the compressor according to any one of claims 1 to 10.