CN217029317U

CN217029317U - Rotor compressor, compressor assembly and air conditioner outdoor unit

Info

Publication number: CN217029317U
Application number: CN202220511159.XU
Authority: CN
Inventors: 黄康; 黄显炎; 赵学委; 叶晓飞; 李永刚
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2022-03-10
Filing date: 2022-03-10
Publication date: 2022-07-22
Anticipated expiration: 2032-03-10

Abstract

The utility model provides a rotor compressor, a compressor assembly and an air conditioner outdoor unit, wherein the rotor compressor comprises a shell, a driving assembly and an air guide assembly; the driving component is arranged in the shell and divides the interior of the shell into an upper cavity and a lower cavity, the upper cavity is provided with an exhaust port, and the lower cavity is provided with an air suction port; the pump body assembly is arranged in the lower cavity and driven by the driving assembly, the pump body assembly comprises a cylinder, an upper flange assembly and an upper flange cover plate, the upper flange assembly is sealed at the air outlet end of the cylinder, the upper flange assembly is provided with an exhaust valve seat, a sealing cavity is formed between the upper flange assembly and the upper flange cover plate, and the sealing cavity is provided with an air guide port; the air guide assembly is arranged outside the shell, one end of the air guide assembly is communicated with the sealing cavity, and the other end of the air guide assembly is communicated with the upper cavity. The refrigerant is led out of the compressor through the external air guide assembly, the original circulation path is changed, and the lubricating oil and the high-speed refrigerant are prevented from being further mixed, so that the reliability and the energy efficiency of the compressor are ensured.

Description

Rotor compressor, compressor assembly and air conditioner outdoor unit

Technical Field

The utility model relates to the technical field of compressors, in particular to a rotor compressor, a compressor assembly and an air conditioner outdoor unit.

Background

Rotor compressor obtains extensive application in the air conditioner field because of its simple structure, with low costs, and rotor compressor is when designing, and the design of oil circuit is the key of guarantee compressor normal operating, when the oil circuit design is unreasonable, leads to the compressor lubricated bad and sealed not tight easily to lead to compressor friction consumption to increase and the refrigeration volume descends, leads to compressor abnormal wear and tear and damage even when serious.

In the rotor compressor, the flow direction of the lubricating oil is opposite to the flow direction of the high-speed refrigerant, so that the lubricating oil is accumulated in the upper cavity of the motor and is further carried out of the compressor by the high-speed refrigerant, and the lubricating oil is accumulated in system components to influence the heat exchange of the evaporator and the condenser, thereby influencing the energy efficiency of the system.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a rotor compressor, a compressor assembly, and an outdoor unit of an air conditioner, which are at least used to solve the technical problem in the prior art that a large amount of lubricating oil of the compressor is brought out of an inner cavity of the compressor by a high-speed refrigerant due to collision between an internal oil path and an air path of the compressor, which affects the energy efficiency of the system, and specifically:

the utility model provides a rotor compressor, which comprises a shell and a driving component, wherein the shell is provided with a first end and a second end; the driving assembly is arranged in the shell and divides the inner part of the shell into an upper cavity and a lower cavity, the upper cavity is provided with an exhaust port, and the lower cavity is provided with an air suction port; the pump body assembly is arranged in the lower cavity and driven by the driving assembly, the pump body assembly comprises an air cylinder, an upper flange assembly and an upper flange cover plate, the upper flange assembly is sealed at the air outlet end of the air cylinder, the upper flange assembly is provided with an exhaust valve seat, a sealing cavity is formed between the upper flange assembly and the upper flange cover plate, and the sealing cavity is provided with an air guide port; the rotor compressor also comprises an air guide assembly, the air guide assembly is arranged outside the shell, one end of the air guide assembly is communicated with the sealing cavity, and the other end of the air guide assembly is communicated with the upper cavity; when a refrigerant enters the cylinder from the air suction port, the refrigerant is compressed and then discharged from the exhaust valve seat of the upper flange assembly, enters a sealing cavity formed by the upper flange assembly and the upper flange cover plate, then is discharged from the sealing cavity through the air guide port of the upper flange assembly, enters the air guide assembly, then enters the upper cavity through the air guide assembly, and finally is discharged from the air exhaust port of the rotor compressor.

Further optionally, the air guide assembly comprises an air guide tube, one end of the air guide tube is communicated with the sealing cavity, and the other end of the air guide tube is communicated with the upper cavity.

Further optionally, the air guide assembly comprises an oil separator, the air guide pipe comprises an air inlet section and an air outlet section, one end of the air inlet section is communicated with the air inlet end of the oil separator, and the other end of the air inlet section is communicated with the sealing cavity; one end of the exhaust section is communicated with the air outlet end of the oil separator, and the other end of the exhaust section is communicated with the upper cavity.

Further optionally, a lubricating oil pool is formed at the bottom of the pump body assembly in the lower cavity, and lubricating oil in the upper cavity flows back to the lubricating oil pool through the driving assembly and a gap between the driving assembly and the housing.

Further optionally, the pump body assembly further comprises a lower flange assembly, and the lower flange assembly is arranged at the bottom of the cylinder and is immersed in the lubricating oil pool.

The rotor compressor of the first aspect of the utility model provides another external circulation mode of high-speed refrigerants, and specifically comprises a shell and a driving assembly; the driving component is arranged in the shell and divides the inner part of the shell into an upper cavity and a lower cavity, the upper cavity is provided with an exhaust port, and the lower cavity is provided with an air suction port; the pump body assembly is arranged in the lower cavity and driven by the driving assembly, the pump body assembly comprises a cylinder, an exhaust port is arranged on the side wall of the cylinder, and an exhaust valve seat is arranged on the exhaust port; the rotor compressor also comprises an air guide assembly, the air guide assembly is arranged outside the shell, one end of the air guide assembly is communicated with the air outlet through the air outlet valve seat, and the other end of the air guide assembly is communicated with the upper cavity; when the refrigerant enters the cylinder from the air suction port, the refrigerant is compressed and then discharged from the exhaust valve seat, enters the air guide assembly, then enters the upper cavity through the air guide assembly, and finally is discharged out of the compressor from the exhaust port.

Further optionally, the air guide assembly comprises an air guide tube, one end of the air guide tube is communicated with the air outlet, and the other end of the air guide tube is communicated with the upper cavity body. In a further alternative,

further optionally, the air guide assembly comprises an oil separator, the air guide pipe comprises an air inlet section and an air outlet section, one end of the air inlet section is communicated with the air inlet end of the oil separator, and the other end of the air inlet section is communicated with the air outlet; one end of the exhaust section is communicated with the air outlet end of the oil separator, and the other end of the exhaust section is communicated with the upper cavity.

The utility model provides a compressor assembly, which comprises a gas-liquid separator and the rotor compressor, wherein the gas guide end of the gas-liquid separator is communicated with the air suction port of the lower cavity.

A third aspect of the present invention provides an outdoor unit of an air conditioner including the compressor assembly of the second aspect.

According to the utility model, the high-speed refrigerant flow path is arranged externally, and the high-speed refrigerant is led out from the lower part of the cavity of the compressor to the air guide assembly at the position of the compressor, so that the original flow path of the refrigerant is changed, the lubricating oil on the upper cavity of the motor is prevented from being further mixed with the high-speed refrigerant, the oil-spraying rate of the compressor is reduced, more lubricating oil is prevented from being reserved in the system, more lubricating oil is reserved at the bottom of the compressor, and the reliability and the capacity and energy efficiency of the compressor are ensured.

Drawings

The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely some embodiments of the present disclosure, and other drawings may be derived from those drawings by those of ordinary skill in the art without inventive effort.

FIG. 1 is a schematic view showing a structure of a rotary compressor according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of an upper flange according to an embodiment of the present invention;

FIG. 3 shows a schematic structural view of a pump body assembly according to an embodiment of the present invention;

FIG. 4a shows one of the structural schematics of a stator assembly of an embodiment of the present invention;

fig. 4b shows a second schematic view of the stator assembly according to the embodiment of the utility model;

figure 4c shows a third schematic structural view of a stator assembly according to an embodiment of the utility model;

fig. 5 is a schematic view illustrating a refrigerant flow path of the rotor compressor according to the embodiment of the present invention;

fig. 6 shows a schematic view of an air conditioning system according to an embodiment of the present invention.

In the figure:

1, a rotor compressor, 10 upper cavities, 20 lower cavities, 30 driving assemblies, 40 pump body assemblies, 41 cylinders, 42 upper flange assemblies, 43 upper flange cover plates, 44 sealing cavities, 45 lower flange assemblies, 50 air guide assemblies, 51 air inlet sections, 52 oil separators, 53 air exhaust sections, 60 lubricating oil pools and 70 stator assemblies;

2 compressor assembly, 21 gas-liquid separator.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

The terminology used in the embodiments of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in the examples of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and "a" and "an" generally include at least two, but do not exclude at least one, unless the context clearly dictates otherwise.

It should be understood that the term "and/or" as used herein is merely a relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B, may represent: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of additional like elements in the article of commerce or system in which the element is comprised.

The utility model provides a rotor compressor 1, as shown in fig. 1 and fig. 2, comprising a shell, a driving component 30 and a pump body component 40, wherein the driving component 30 and the pump body component 40 are arranged in the shell, the driving component 30 divides the space in the shell into an upper cavity 10 and a lower cavity 20, the upper cavity 10 is provided with an exhaust port, and the lower cavity 20 is provided with an air suction port. The pump body assembly 40 is disposed in the lower cavity 20 and is driven by the driving assembly 30. That is, the driving assembly 30 is disposed above the pump body assembly 40, the pump body assembly 40 includes a cylinder 41, an upper flange assembly 42 and an upper flange cover plate 43, the upper flange cover plate 43 is covered on the upper flange assembly 42 in a sealing manner, and the upper flange cover plate 43 is covered behind the upper flange assembly 42, a sealing cavity 44 for the circulation of refrigerant can be formed therebetween, wherein the upper flange assembly 42 is provided with a vent valve seat, and the vent valve seat is mounted at the air outlet end of the cylinder 41 in a sealing manner. That is, the refrigerant flows from the inside of the cylinder 41 through the discharge valve seat of the upper flange assembly 42 into the sealed chamber 44 formed by the upper flange assembly 42 and the upper flange cover 43.

As shown in fig. 4a, 4b, 4c, the drive assembly 30 further includes a stator assembly 70.

The rotary compressor 1 further includes an air guide unit 50, and the air guide unit 50 is disposed outside the casing, that is, the air guide unit 50 is disposed independently from the casing. The gas guide assembly 50 has one end communicating with the sealing chamber 44 and the other end communicating with the upper chamber body 10. That is, the refrigerant in the sealed chamber 44 can be conducted to the outside of the housing through the air guide assembly 50, and finally conducted to the upper chamber 10, and discharged from the exhaust port of the upper chamber 10.

As shown in fig. 5, specifically, after the refrigerant enters the lower cavity 20 from the air inlet of the casing, the refrigerant enters the cylinder 41 to do work, is guided into the sealed cavity 44 from the air outlet valve seat of the upper flange assembly 42, is guided into the air guide assembly 50 through the air guide opening of the sealed cavity 44, is conducted to the upper cavity 10 through the air guide assembly 50, and is finally discharged out of the rotor compressor 1 through the air outlet of the upper cavity 10. Fig. 5 is a schematic view of a flow path of a refrigerant in the compressor.

In the related art, oil circulation of a compressor is divided into an external circulation and an internal circulation, the internal circulation is oil circulation inside the compressor, and the external circulation is external circulation of the compressor. The internal circulation is that the lubricating oil in the upper cavity of the motor needs to return to the bottom of the compressor from the upper cavity of the motor, and the high-speed refrigerant needs to pass through the rotor flow hole and the stator trimming from the lower cavity of the motor to reach the upper cavity of the motor so as to be discharged out of the compressor. The flow direction of the lubricating oil is opposite to that of the high-speed refrigerant, so that the lubricating oil is accumulated in the upper cavity of the motor and is further carried out of the compressor by the high-speed refrigerant, and is accumulated in system components to influence the heat exchange of the evaporator condenser, thereby influencing the energy efficiency of the system. Meanwhile, lubricating oil is difficult to return to the bottom of the compressor, so that the oil pumping of the compressor is difficult, the lubrication and the sealing of the compressor are poor, and the abnormal abrasion of the compressor is caused.

It can be understood that, the original circulation path of the refrigerant has been changed in this disclosure, and the high-speed refrigerant is conducted to compressor upper portion through external air guide pipeline, and the motor epicoele lubricating oil and the high-speed refrigerant are avoided further mixing, thereby reducing the compressor oil-spitting rate, avoiding more remain inside the system of lubricating oil, let more remain in the compressor bottom of lubricating oil, thereby guaranteed compressor reliability and ability efficiency.

In the related technology, a high-speed refrigerant discharged from an upper flange needs to pass through a rotor circulation hole from a lower motor cavity, a stator trimming, an enameled wire gap, a stator and rotor gap to an upper motor cavity, and then is discharged out of a compressor through an exhaust pipe, lubricating oil flows to the lower motor cavity through the stator trimming and then flows to the bottom of the compressor, the upward high-speed refrigerant can drive the lubricating oil flowing downwards to go upwards, the pressure of the lower motor cavity of the compressor is higher than that of the upper motor cavity when the compressor exhausts, the lubricating oil is not beneficial to flowing back to the lower motor cavity from the upper motor cavity, and the lubricating oil can flow from the upper motor cavity to the lower motor cavity only when the compressor stops exhausting. When the displacement of the compressor is large, the lubricating oil cannot flow from the upper cavity of the motor to the lower cavity of the motor in time, so that the lubricating oil is accumulated in the upper cavity of the motor, high-speed refrigerant and the lubricating oil are further mixed, and the lubricating oil is taken out of the compressor to influence the heat exchange of a system and the lubrication and sealing of the compressor.

In the present disclosure, the oil path and the air path are separated, the oil path and the air path do not interfere with each other, the high-speed coolant flow path is externally arranged, and the high-speed coolant discharged from the upper flange assembly 42 is directly discharged from the sealing cavity 44 to the inside of the external air guide assembly 50 and conducted to the upper cavity 10, so that not only can the system performance be ensured, but also the rotor circulation hole can be reduced or even eliminated, the motor efficiency is further improved, and the possibility is provided for further miniaturization of the compressor.

Preferably, in this embodiment, the airway assembly 50 includes an airway tube, one end of which communicates with the seal chamber 44 and the other end of which communicates with the upper chamber body 10. Specifically, the air guide assembly 50 is connected to the housing through an air guide tube, and the connection end of the air guide tube is connected to the sealing cavity 44 and the upper cavity 10 in a sealing manner, so that the tightness of refrigerant circulation is ensured.

Specifically, the air guide assembly 50 comprises an oil separator 52, the air guide tube comprises an air inlet section 51 and an air outlet section 53, the air inlet section 51 is in sealed communication with the sealing cavity 44, the other end of the air inlet section 51 is communicated with the air inlet end of the oil separator 52, the air outlet section 53 is in sealed connection with the upper cavity 10, and the other end of the air outlet section 53 is communicated with the air outlet end of the oil separator 52. That is, the oil separator 52 is provided in the path of the air guide unit 50 through which the air flows, so that oil in the air path is separated, thereby better guiding the high-speed refrigerant.

Preferably, a lubricant sump 60 is formed at the position of the lower cavity 20, specifically, at the bottom of the pump body assembly 40, and the lubricant of the upper cavity 10 flows back into the lubricant sump 60 through the driving assembly 30 and the gap between the driving assembly 30 and the housing. That is, the oil return path of the lubricant is returned to the lubricant sump 60 through the pump body assembly 40 and the gap between it and the housing, so that the lubricant is held at the lubricant bottom.

Further, the pump body assembly 40 further includes a lower flange assembly 45, and the lower flange assembly 45 is disposed at the bottom of the cylinder 41 and is immersed in the lubricating oil pool 60. This body subassembly of disclosure still includes the lower flange subassembly, and lower flange subassembly 45 sets up in the below of cylinder 41, that is to say, and cylinder 41 sets up between upper and lower flange, through the fixed connection between the upper and lower flange subassembly, fixes cylinder 41 between the upper and lower flange subassembly, has guaranteed the stability of cylinder 41 work.

Another way of realizing an external high-speed refrigerant channel can be adopted in the rotor compressor 1 of the first aspect of the present disclosure, and a specific refrigerant circulation way is to introduce the refrigerant into the external air guide assembly 50, introduce the refrigerant into the upper cavity 10 through the air guide assembly 50, and discharge the refrigerant from the air outlet of the upper cavity 10, specifically, the pump body assembly 40 includes the cylinder 41, an air outlet is provided on a side wall of the cylinder 41, an air discharge valve seat is provided on the air outlet, the rotor compressor 1 includes the air guide assembly 50, and the air guide assembly 50 is respectively communicated with the air outlet and the upper cavity 10.

The high-speed refrigerant enters the cylinder 41 from the air suction port, performs work through compression, is guided into the air guide assembly 50 through the air outlet at the exhaust valve seat, then enters the upper cavity 10 of the compressor from the air guide assembly 50, and finally is discharged from the air outlet of the upper cavity 10.

Through set up the discharge valve seat at cylinder 41 lateral wall to make high-speed refrigerant directly conduct to external air guide assembly 50 through the gas outlet after being compressed to do work, thereby avoid the flow path conflict of refrigerant flow path and oil return, this disclosure is external to be avoided refrigerant flow and is interfered with the oil return flow path emergence, thereby make the inside of staying the compressor that lubricating oil can be more, thereby ensure the smooth and easy nature of the pump oil of compressor, thereby guarantee the lubrication and the sealing of compressor, thereby ensure the high-efficient and reliable operation of compressor.

Further, the air guide assembly 50 includes an air guide tube, one end of the air guide tube is hermetically connected to the air outlet of the air cylinder 41, and the other end of the air guide tube is communicated with the upper chamber 10.

Further, the air guide assembly 50 includes an oil separator 52, the air guide tube includes an air inlet section 51 and an air outlet section, one end of the air inlet section 51 is communicated with an air inlet end of the oil separator 52, the other end is communicated with an air outlet of the cylinder 41, one end of the air outlet section 53 is connected with the oil separator 52, and the other end is connected with the upper chamber 10. The refrigerant is conducted to the air guide assembly 50 through the air outlet of the cylinder 41, and after being separated by the oil separator 52, the refrigerant is conducted to the upper cavity 10 and is discharged out of the casing through the air outlet.

The second aspect of the present disclosure provides a compressor assembly 2, which includes the rotor compressor 1 described in the first aspect, and therefore includes all the beneficial technical effects of the rotor compressor 1 of the first aspect, which are not described in detail herein.

The compressor assembly 2 further includes a gas-liquid separator 21, and an air guide end of the gas-liquid separator 21 is communicated with the air suction port of the lower cavity 20, so that the high-speed refrigerant separated in the gas-liquid separator 21 is conducted to the inside of the cylinder 41 through the air guide end and the air suction port of the gas-liquid separator 21.

The third aspect of the present disclosure provides an outdoor unit of an air conditioner, including the compressor assembly 2 described in the second aspect, and therefore, all the beneficial technical effects of the compressor assembly 2 in the second aspect are included, and details are not repeated herein.

Fig. 6 is a schematic view showing an air conditioning system using the outdoor unit.

Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the disclosure is not limited to the precise construction, arrangements, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. A rotor compressor is characterized by comprising a shell, a driving assembly, a pump body assembly and an air guide assembly;

the driving assembly is arranged in the shell and divides the inner part of the shell into an upper cavity and a lower cavity, the upper cavity is provided with an exhaust port, and the lower cavity is provided with an air suction port;

the pump body assembly is arranged in the lower cavity and driven by the driving assembly, the pump body assembly comprises an air cylinder, an upper flange assembly and an upper flange cover plate, the upper flange assembly is sealed at the air outlet end of the air cylinder, the upper flange assembly is provided with an exhaust valve seat, a sealing cavity is formed between the upper flange assembly and the upper flange cover plate, and the sealing cavity is provided with an air guide port;

the air guide assembly is arranged outside the shell, one end of the air guide assembly is communicated with the sealing cavity, and the other end of the air guide assembly is communicated with the upper cavity;

when a refrigerant enters the cylinder from the air suction port, the refrigerant is compressed and then discharged from the exhaust valve seat of the upper flange assembly, enters a sealing cavity formed by the upper flange assembly and the upper flange cover plate, then is discharged from the sealing cavity through the air guide port, enters the air guide assembly, then enters the upper cavity through the air guide assembly, and finally is discharged from the air exhaust port to the rotor compressor.

2. The rotary compressor of claim 1, wherein: the air guide assembly comprises an air guide tube, one end of the air guide tube is communicated with the sealing cavity, and the other end of the air guide tube is communicated with the upper cavity body.

3. The rotary compressor of claim 2, wherein: the air guide assembly comprises an oil separator, the air guide pipe comprises an air inlet section and an air outlet section, one end of the air inlet section is communicated with the air inlet end of the oil separator, and the other end of the air inlet section is communicated with the sealing cavity;

one end of the exhaust section is communicated with the air outlet end of the oil separator, and the other end of the exhaust section is communicated with the upper cavity.

4. The rotary compressor of claim 3, wherein the lower cavity forms a lubricant sump at a bottom of the pump body assembly, and the lubricant in the upper cavity flows back to the lubricant sump through the driving assembly and a gap between the driving assembly and the casing.

5. The rotary compressor of claim 4, wherein: the pump body assembly further comprises a lower flange assembly, and the lower flange assembly is arranged at the bottom of the cylinder and is immersed in the lubricating oil pool.

6. A rotor compressor is characterized by comprising a shell, a driving assembly, a pump body assembly and an air guide assembly;

the pump body assembly is arranged in the lower cavity and driven by the driving assembly, the pump body assembly comprises a cylinder, an air outlet is formed in the side wall of the cylinder, and an exhaust valve seat is arranged on the air outlet;

the rotor compressor also comprises an air guide assembly, the air guide assembly is arranged outside the shell, one end of the air guide assembly is communicated with the air outlet through the air outlet valve seat, and the other end of the air guide assembly is communicated with the upper cavity;

when the refrigerant enters the cylinder from the air suction port, the refrigerant is compressed and then discharged from the exhaust valve seat, enters the air guide assembly, then enters the upper cavity through the air guide assembly, and finally is discharged out of the rotor compressor from the exhaust port.

7. The rotary compressor of claim 6, wherein:

the air guide assembly comprises an air guide tube, one end of the air guide tube is communicated with the air outlet, and the other end of the air guide tube is communicated with the upper cavity.

8. The rotary compressor of claim 7, wherein:

the air guide assembly comprises an oil separator, the air guide pipe comprises an air inlet section and an air outlet section, one end of the air inlet section is communicated with the air inlet end of the oil separator, and the other end of the air inlet section is communicated with the air outlet;

9. A compressor assembly comprising a gas-liquid separator and a rotor compressor according to any one of claims 1 to 8, wherein an air-guiding end of the gas-liquid separator is communicated with an air suction port of the lower cavity.

10. An outdoor unit for an air conditioner, comprising the compressor assembly of claim 9.