CN110749126A - Compressor assembly and air conditioning system with same - Google Patents
Compressor assembly and air conditioning system with same Download PDFInfo
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- CN110749126A CN110749126A CN201911114982.6A CN201911114982A CN110749126A CN 110749126 A CN110749126 A CN 110749126A CN 201911114982 A CN201911114982 A CN 201911114982A CN 110749126 A CN110749126 A CN 110749126A
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- heat exchanger
- oil return
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- indoor heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B31/00—Compressor arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/02—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat for separating lubricants from the refrigerant
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- General Engineering & Computer Science (AREA)
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- Power Engineering (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention provides a compressor assembly and an air conditioning system with the same, wherein the compressor assembly comprises: a housing having an air outlet; the first compression cylinder is arranged in the shell and provided with a first air suction port and a first air exhaust port, and the first air exhaust port is communicated with the air outlet; the second compression cylinder is arranged in the shell and is connected with the first compression cylinder in parallel, and the second compression cylinder is provided with a second air suction port and a second air exhaust port; the separating piece is arranged outside the shell and provided with a separating cavity, and the second air outlet is communicated with the separating cavity so as to separate the mixture discharged by the second air outlet through the separating piece; and an oil inlet of the oil return structure is communicated with an oil outlet of the separating piece, and an oil outlet of the oil return structure is communicated with an oil return port of the shell so as to enable oil separated by the separating piece to flow into the shell through the oil return port under the action of the oil return structure. The double-suction double-row compressor solves the technical problem that the double-suction double-row compressor in the prior art is easy to be worn due to oil shortage.
Description
Technical Field
The invention relates to the technical field of air conditioning equipment, in particular to a compressor assembly and an air conditioning system with the same.
Background
At present, the existing air conditioning system usually adopts a single-suction single-row compressor, and a refrigeration cycle loop is formed by the single-row compressor and single-row or multi-row heat exchangers inside and outside a room, so that indoor air is heated or cooled, and the requirement of indoor environment comfort is met. The air conditioning system can only realize one evaporation temperature and one condensation temperature because the compressor is only connected with the indoor heat exchanger and the outdoor heat exchanger through the suction port and the exhaust port. In order to realize the step heating or cooling of indoor air, a dual-temperature air conditioning system with double cylinders connected in parallel with a compressor is provided to improve the system energy efficiency and slow down the energy efficiency attenuation speed under the working condition of low-temperature heating and frosting.
However, the air conditioning system adopting the double-cylinder parallel compressor has the defects that the compressor directly exhausts air, the air cylinder has high exhaust and oil discharge rate due to the lack of a necessary oil blocking device, and the compressor is subjected to oil shortage and abrasion due to long-term operation.
Disclosure of Invention
The invention mainly aims to provide a compressor assembly and an air conditioning system with the same, and aims to solve the technical problem that a double-suction double-row compressor in the prior art is easy to have oil shortage and abrasion.
To achieve the above object, according to one aspect of the present invention, there is provided a compressor assembly including: a housing having an air outlet; the first compression cylinder is arranged in the shell and provided with a first air suction port and a first air exhaust port, and the first air exhaust port is communicated with the air outlet; the second compression cylinder is arranged in the shell and is connected with the first compression cylinder in parallel, and the second compression cylinder is provided with a second air suction port and a second air exhaust port; the separating piece is arranged outside the shell and provided with a separating cavity, and the second air outlet is communicated with the separating cavity so as to separate the mixture discharged by the second air outlet through the separating piece; an oil inlet of the oil return structure is communicated with an oil outlet of the separating piece, and an oil outlet of the oil return structure is communicated with an oil return port of the shell, so that oil separated by the separating piece flows into the shell through the oil return port under the action of the oil return structure; the oil return structure has a conduction state and a throttling state; when the exhaust pressure of the second exhaust port is equal to the exhaust pressure of the first exhaust port, the oil return structure is in a conducting state; when the exhaust pressure of the second exhaust port is larger than that of the first exhaust port, the oil return structure is in a throttling state.
Further, the oil return structure includes: the connecting pipe is provided with a first end and a second end which are oppositely arranged, the first end of the connecting pipe forms an oil inlet, and the second end of the connecting pipe forms an oil outlet; the oil return control valve is arranged on the connecting pipe and has an opening and conducting state and a closed throttling state; when the oil return control valve is in an open conduction state, the oil return structure is in a conduction state; when the oil return control valve is in a closed throttling state, the oil return structure is in a throttling state.
Further, the oil return structure includes: the connecting pipe is provided with a first end and a second end which are oppositely arranged, the first end of the connecting pipe forms an oil inlet, and the second end of the connecting pipe forms an oil outlet; the stop valve is arranged on the connecting pipe; and one end of the oil return capillary tube is connected with one end of the stop valve, and the other end of the oil return capillary tube is connected with the other end of the stop valve.
Further, the separating part is an oil separator for separating oil from the mixture discharged from the second exhaust port by the oil separator.
Furthermore, the number of the second compression cylinders is multiple, the number of the separating parts is multiple, the multiple separating parts and the multiple second compression cylinders are arranged in a one-to-one correspondence mode, and the second exhaust port of each second compression cylinder is communicated with the separating cavity of the corresponding separating part.
According to another aspect of the present invention, there is provided an air conditioning system including: a compressor assembly; the compressor component is the compressor component provided above; and the indoor heat exchanger assembly is connected with the compressor assembly.
Further, the indoor heat exchanger assembly includes: the first indoor heat exchanger is connected with a first compression cylinder of the compressor assembly; and the second indoor heat exchanger is connected with a second compression cylinder of the compressor assembly.
Further, the air conditioning system further includes: the first indoor heat exchanger is positioned on the windward side, and the second indoor heat exchanger is arranged between the indoor fan and the first indoor heat exchanger.
Further, the air conditioning system further includes: the outdoor heat exchanger, the first indoor heat exchanger and the second indoor heat exchanger are all connected with the outdoor heat exchanger.
Further, the air conditioning system further includes: the first throttling element is arranged between the first indoor heat exchanger and the outdoor heat exchanger; and the second throttling element is arranged between the second indoor heat exchanger and the outdoor heat exchanger.
Further, the air conditioning system further includes: one end of the first throttling element is connected with the outdoor heat exchanger, and the first indoor heat exchanger and the second indoor heat exchanger are both connected with the other end of the first throttling element; and a second throttle member between the first throttle member and the second indoor heat exchanger.
By applying the technical scheme of the invention, the oil return structure is arranged, the oil inlet of the oil return structure is communicated with the oil outlet of the separating piece, and the oil outlet of the oil return structure is communicated with the oil return port of the shell, so that the oil separated by the separating piece flows to the oil return port through the oil return structure to flow into the oil pool at the bottom of the compressor, thereby avoiding the condition of oil shortage and abrasion of the compressor caused by long-term operation. Specifically, the oil return structure may select the conduction state or the throttle state according to the exhaust condition of the second exhaust port, so that the oil brought out by the second exhaust port flows back through the oil return structure. Therefore, the technical problem that the double-suction double-row compressor in the prior art is easy to lack oil and wear can be solved through the technical scheme provided by the invention.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 illustrates a schematic view of an air conditioning system incorporating a compressor assembly provided in accordance with an embodiment of the present invention;
FIG. 2 illustrates a schematic view of a compressor assembly provided in accordance with an embodiment of the present invention;
FIG. 3 illustrates a schematic view of an air conditioning system incorporating a compressor assembly provided in accordance with embodiment two of the present invention;
FIG. 4 illustrates a schematic diagram of a compressor assembly provided in accordance with an embodiment two of the present invention;
fig. 5 shows a schematic view of a compressor provided according to the first and second embodiments of the present invention; and
fig. 6 shows a schematic diagram of an air conditioning system according to a third embodiment of the present invention.
Wherein the figures include the following reference numerals:
10. a housing; 11. an oil return port; 21. a first air intake port; 22. a first exhaust port; 31. a second air suction port; 32. a second exhaust port; 40. a separating member; 50. an oil return structure; 51. a connecting pipe; 52. an oil return control valve; 53. a stop valve; 54. an oil return capillary tube; 61. a first indoor heat exchanger; 62. a second indoor heat exchanger; 70. an indoor fan; 80. an outdoor heat exchanger; 91. a first orifice member; 92. a second orifice member; 110. a first four-way valve; 120. a second four-way valve; 130. an outdoor fan.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 and 2, an embodiment of the present invention provides a compressor assembly including a housing 10, a first compression cylinder, a second compression cylinder, a separating member 40, and an oil return structure 50, the housing 10 having an air outlet. A first compression cylinder is arranged in the housing 10, the first compression cylinder having a first suction opening 21 and a first discharge opening 22, the first discharge opening 22 communicating with the gas outlet, the gas-liquid mixture discharged from the first discharge opening 22 being separated by a separating structure inside the housing 10. The second compression cylinder is disposed in the housing 10, the second compression cylinder is disposed in parallel with the first compression cylinder, the second compression cylinder has a second suction port 31 and a second exhaust port 32, the second exhaust port 32 is a direct exhaust port, and the gas exhausted from the second exhaust port 32 is directly exhausted without being separated by a separation structure inside the housing 10. The oil return structure 50 in the present embodiment has a conduction state and a throttle state; when the discharge pressure of the second discharge port 32 is equal to the discharge pressure of the first discharge port 22, the oil return structure 50 is in a conducting state; when the discharge pressure of the second discharge port 32 is larger than the discharge pressure of the first discharge port 22, the oil return structure 50 is in the throttle state.
As shown in fig. 5, in particular, the housing 10, the first compression cylinder and the second compression cylinder are part of a compressor, by means of which a multi-temperature regulation can be achieved. Specifically, the second compression cylinder is disposed in parallel with the first compression cylinder, which means that the second compression cylinder and the first compression cylinder are completely independent structures.
Specifically, the separating member 40 in this embodiment is disposed outside the casing 10, the separating member 40 has a separating cavity, and the second air outlet 32 is disposed in communication with the separating cavity so as to separate the mixture discharged from the second air outlet 32 by the separating member 40. An oil inlet of the oil return structure 50 is communicated with an oil outlet of the separating element 40, and an oil outlet of the oil return structure 50 is communicated with an oil return port 11 of the housing 10, so that oil separated by the separating element 40 flows into an oil pool of the housing 10 through the oil return port 11 under the action of the oil return structure 50. Specifically, the oil return structure 50 is disposed between the separating member 40 and the oil return port 11 at the bottom of the housing 10. Meanwhile, by separately providing the first exhaust port 22 and the second exhaust port 32, the occurrence of the air cross-over phenomenon between the first exhaust port 22 and the second exhaust port 32 is avoided.
Adopt the compressor unit that this embodiment provided, the fluid with separator 40 separation department flows into oil return opening 11 department under oil return structure 50's effect to make fluid get into the oil return pond of casing 10 bottom through oil return opening 11 in, thereby make to have sufficient lubricating oil to lubricate in the oil return pond, avoided leading to the phenomenon of compressor oil shortage wearing and tearing because of long-term operation, control is simple, has realized low-cost oil return. Specifically, when the compressor assembly is in the cooling mode, the discharge pressure of the first discharge port 22 is the same as the discharge pressure of the second discharge port 32, and at this time, it is only necessary to make the oil return structure in the conducting state, and at this time, the oil brought out by the second discharge port 32 flows back through the oil return structure 50. When the compressor assembly is in the heating mode, the discharge pressure of the second discharge port 32 is greater than the discharge pressure of the first discharge port 22, and at this time, it is only necessary to make the oil return structure in the throttling state, and at this time, the oil brought out by the second discharge port 32 flows back through the oil return structure 50. The oil return structure 50 in this embodiment has only two states, which is convenient for operation and control, so that the purpose of recovering the oil discharged from the second exhaust port 32 can be achieved by changing the state of the oil return structure 50. Therefore, through the compressor unit spare that this embodiment provided, can solve the double suction double row compressor among the prior art and easily appear the technical problem of lack of oil wearing and tearing.
In the first embodiment, the oil return structure 50 includes a connecting pipe 51 and an oil return control valve 52, the connecting pipe 51 has a first end and a second end which are oppositely arranged, the first end of the connecting pipe 51 forms an oil inlet, and the second end of the connecting pipe 51 forms an oil outlet. The oil return control valve 52 is provided on the connection pipe 51, the oil return control valve 52 having an open conducting state and a closed throttle state; when the oil return control valve 52 is in the open conducting state, the oil return structure 50 is in the conducting state; when the oil return control valve 52 is in the closed throttle state, the oil return structure 50 is in the throttle state. With this arrangement, the control valve is in the open state or the closed throttle state according to the pressure conditions of the first exhaust port 22 and the second exhaust port 32, so that the oil separated by the separating member 40 flows into the oil return port 11 through the connecting pipe 51 to perform the oil return operation.
Specifically, in the first embodiment, when the return oil control valve 52 is in the open state, the passage diameter of the return oil control valve 52 is the same as that of the connection pipe 51, and the oil flows without resistance. When the oil return control valve 52 is in the closed throttle state, the diameter of the oil return control valve 52 is smaller than that of the connection pipe 51, and the oil flow has resistance.
Specifically, in the first embodiment, in the cooling mode, the pressures of the first exhaust port 22 and the second exhaust port 32 are the same, and the oil return control valve 52 is in the open and conductive state, at this time, the refrigerant discharged from the second exhaust port 32 contains a large amount of lubricating oil, and after being separated by the separator 40, the lubricating oil returns to the oil sump of the compressor through the oil return control valve 52 and the oil return port 11 under gravity. In the heating mode and the defrosting mode, the pressure of the second exhaust port 32 is higher than that of the first exhaust port 22, the oil return control valve 52 is in a closed throttling state, at this time, the refrigerant discharged from the second exhaust port 32 contains more lubricating oil, and after being separated by the separating member 40, the lubricating oil returns to the oil sump of the compressor through the oil return control valve 52 and the oil return port 11 under the action of gravity and pressure difference. In the stop mode, the oil return control valve 52 is in an open conducting state, and the residual lubricating oil in the separating member 40 is returned to the oil sump of the compressor through the oil return control valve 52 and the oil return port 11 by gravity.
As shown in fig. 3 and 4, the second embodiment of the present invention provides a compressor assembly, in which the oil return structure 50 of the compressor assembly includes a connection pipe 51, a stop valve 53 and an oil return capillary tube 54, the connection pipe 51 has a first end and a second end which are oppositely arranged, the first end of the connection pipe 51 forms an oil inlet, and the second end of the connection pipe 51 forms an oil outlet. The shutoff valve 53 is provided in the connection pipe 51, one end of the oil return capillary tube 54 is connected to one end of the shutoff valve 53, and the other end of the oil return capillary tube 54 is connected to the other end of the shutoff valve 53. With this arrangement, when the discharge pressure of the second discharge port 32 is equal to the pressure of the first discharge port 22, the stop valve 53 is opened, and the oil return structure 50 is in a conducting state, so that the oil separated by the separating member 40 directly flows into the oil return port 11; when the exhaust pressure of the second exhaust port 32 is greater than the pressure of the first exhaust port 22, the stop valve 53 is closed, and the oil return structure 50 is in a throttling state, so that the oil separated by the separator 40 flows into the oil return port 11 under the throttling action of the oil return capillary 54, so as to complete the oil return operation smoothly.
In the second embodiment, the oil return capillary 54 is determined to satisfy the requirement of normal oil return under different exhaust pressure differences and to prevent the occurrence of air cross-over between the first exhaust port 22 and the second exhaust port 32. In the cooling mode, the pressure of the first exhaust port 22 is the same as the pressure of the second exhaust port 32, and the shutoff valve 53 is in an open state, and at this time, the refrigerant discharged from the second exhaust port 32 contains a large amount of lubricating oil, and after being separated by the separator 40, the lubricating oil returns to the oil sump of the compressor through the shutoff valve 53 and the oil return port 11 by gravity. In the heating mode and the defrosting mode, the stop valve 53 is in a closed and stopped state, the pressure of the liquid-liquid mixture discharged from the second gas discharge port 32 is higher than that of the liquid-liquid mixture discharged from the first gas discharge port 22, at this time, the refrigerant discharged from the second gas discharge port 32 contains more lubricating oil, and after being separated by the separating member 40, the lubricating oil at the separation position returns to the oil sump at the bottom of the compressor through the oil return capillary tube 54 and the oil return port 11 under the action of gravity and pressure difference. In the stop mode, the stop valve 53 is in an open conducting state, and the residual lubricating oil in the separating member 40 returns to the oil sump of the compressor through the stop valve 53 and the oil return port 11 under the action of gravity.
Specifically, the separating member 40 in the first and second embodiments may be an oil separator, so as to separate oil from the mixture discharged from the second gas outlet 32 through the oil separator. The oil in the gas-liquid mixture discharged from the second gas outlet 32 can be conveniently separated by an oil separator. In particular, the oil separator may be of a scrubbing, centrifugal, packed or filter construction.
Specifically, in the first and second embodiments, the number of the second compression cylinders may be plural, and accordingly, the number of the separating members 40 may also be plural, the plural separating members 40 are provided in one-to-one correspondence with the plural second compression cylinders, and the second exhaust port 32 of each second compression cylinder communicates with the separating chamber of the corresponding separating member 40. With the arrangement, the situation of oil shortage and abrasion caused by long-term operation can be avoided for the compressor with multiple suction rows.
The third embodiment of the invention provides an air conditioning system which comprises a compressor assembly and an indoor heat exchanger assembly, wherein the compressor assembly is the compressor assembly provided by the first embodiment or the second embodiment, and the indoor heat exchanger assembly is connected with the compressor assembly. By adopting the arrangement, the condition that the compressor is easy to be subjected to oil-starved abrasion in long-term operation can be avoided. In this embodiment, the air conditioning system further includes a first four-way valve 110 and a second four-way valve 120.
Specifically, the indoor heat exchanger assembly in this embodiment includes a first indoor heat exchanger 61 and a second indoor heat exchanger 62, the first indoor heat exchanger 61 is connected to a first compression cylinder of the compressor assembly, and the second indoor heat exchanger 62 is connected to a second compression cylinder of the compressor assembly. First indoor heat exchanger 61 and second indoor heat exchanger 62 in this embodiment all set up indoor, adopt such setting, can compress the refrigerant in the first indoor heat exchanger 61, compress the refrigerant in the second indoor heat exchanger 62 through the second compression cylinder respectively through first compression cylinder to be convenient for to indoor heat transfer better through two indoor heat exchangers, with the comfort level of better improvement room air.
In the present embodiment, the air conditioning system further includes an indoor fan 70, the first indoor heat exchanger 61 is located on the windward side, and the second indoor heat exchanger 62 is disposed between the indoor fan 70 and the first indoor heat exchanger 61.
Specifically, the air conditioning system in this embodiment further includes an outdoor heat exchanger 80 and an outdoor fan 130, and the first indoor heat exchanger 61 and the second indoor heat exchanger 62 are both connected to the outdoor heat exchanger 80. The outdoor heat exchanger 80 and the outdoor fan 130 in this embodiment are both disposed outdoors.
In the third embodiment, the air conditioning system further includes a first throttle 91 and a second throttle 92, the first throttle 91 being disposed between the first indoor heat exchanger 61 and the outdoor heat exchanger 80, and the second throttle 92 being disposed between the second indoor heat exchanger 62 and the outdoor heat exchanger 80. With such an arrangement, by respectively providing the first throttling element 91 and the second throttling element 92, the refrigerants in the first indoor heat exchanger 61 and the second indoor heat exchanger 62 can be respectively throttled, so that the heat exchange of the indoor air can be better performed through the first indoor heat exchanger 61 and the second indoor heat exchanger 62.
As shown in fig. 6, a fourth embodiment of the present invention provides an air conditioning system, which further includes a first throttle 91 and a second throttle 92, wherein one end of the first throttle 91 is connected to the outdoor heat exchanger 80, and both the first indoor heat exchanger 61 and the second indoor heat exchanger 62 are connected to the other end of the first throttle 91. The second throttle member 92 is located between the first throttle member 91 and the second indoor heat exchanger 62. With such an arrangement, the refrigerant flowing through the second indoor heat exchanger 62 can be better throttled to better exchange heat with the indoor air to better improve the comfort of the indoor air.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects: the problem of oil return difficulty is solved, the condition that the compressor runs for a long time and is abraded due to oil shortage is avoided, and low-cost oil return is realized.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A compressor assembly, comprising:
a housing (10), the housing (10) having an air outlet;
a first compression cylinder disposed within the housing (10), the first compression cylinder having a first intake port (21) and a first exhaust port (22), the first exhaust port (22) communicating with the outlet port;
a second compression cylinder disposed within the housing (10), the second compression cylinder disposed in parallel with the first compression cylinder, the second compression cylinder having a second suction port (31) and a second discharge port (32);
a separating member (40) arranged outside the shell (10), wherein the separating member (40) is provided with a separating cavity, and the second air outlet (32) is communicated with the separating cavity so as to separate the mixture discharged from the second air outlet (32) through the separating member (40);
an oil inlet of the oil return structure (50) is communicated with an oil outlet of the separating piece (40), an oil outlet of the oil return structure (50) is communicated with an oil return port (11) of the shell (10), so that oil separated from the separating piece (40) flows into the shell (10) through the oil return port (11) under the action of the oil return structure (50); the oil return structure (50) has a conducting state and a throttling state; when the exhaust pressure of the second exhaust port (32) is equal to the exhaust pressure of the first exhaust port (22), the oil return structure is in the conduction state; when the discharge pressure of the second discharge port (32) is greater than the discharge pressure of the first discharge port (22), the oil return structure (50) is in the throttle state.
2. The compressor assembly of claim 1, wherein the oil return structure (50) comprises:
the connecting pipe (51) is provided with a first end and a second end which are oppositely arranged, the first end of the connecting pipe (51) forms the oil inlet, and the second end of the connecting pipe (51) forms the oil outlet;
an oil return control valve (52) provided on the connection pipe (51), the oil return control valve (52) having an open conducting state and a closed throttling state; when the oil return control valve (52) is in the open conducting state, the oil return structure (50) is in the conducting state; the oil return structure (50) is in the throttled state when the oil return control valve (52) is in the closed throttled state.
3. The compressor assembly of claim 1, wherein the oil return structure (50) comprises:
the connecting pipe (51) is provided with a first end and a second end which are oppositely arranged, the first end of the connecting pipe (51) forms the oil inlet, and the second end of the connecting pipe (51) forms the oil outlet;
a shut-off valve (53) provided on the connection pipe (51);
and one end of the oil return capillary tube (54) is connected with one end of the stop valve (53), and the other end of the oil return capillary tube (54) is connected with the other end of the stop valve (53).
4. The compressor assembly of claim 1, wherein the separator (40) is an oil separator to separate oil from the mixture discharged from the second discharge port (32) through the oil separator.
5. The compressor assembly of claim 1 wherein the second compression cylinder is plural, the separator (40) is plural, the plurality of separators (40) are disposed in one-to-one correspondence with the plurality of second compression cylinders, and the second discharge port (32) of each of the second compression cylinders communicates with the separation chamber of the corresponding separator (40).
6. An air conditioning system, characterized in that the air conditioning system comprises:
a compressor assembly; the compressor assembly is the compressor assembly of any one of claims 1 to 5;
and the indoor heat exchanger assembly is connected with the compressor assembly.
7. The air conditioning system of claim 6, wherein the indoor heat exchanger assembly comprises:
a first indoor heat exchanger (61), the first indoor heat exchanger (61) being connected to a first compression cylinder of the compressor assembly;
a second indoor heat exchanger (62), the second indoor heat exchanger (62) being connected with a second compression cylinder of the compressor assembly.
8. The air conditioning system of claim 7, further comprising:
an indoor fan (70), the first indoor heat exchanger (61) being located on the windward side, the second indoor heat exchanger (62) being disposed between the indoor fan (70) and the first indoor heat exchanger (61).
9. The air conditioning system of claim 7, further comprising:
an outdoor heat exchanger (80), the first indoor heat exchanger (61) and the second indoor heat exchanger (62) both being connected with the outdoor heat exchanger (80).
10. The air conditioning system of claim 9, further comprising:
a first throttle (91) provided between the first indoor heat exchanger (61) and the outdoor heat exchanger (80);
a second throttle (92) disposed between the second indoor heat exchanger (62) and the outdoor heat exchanger (80).
11. The air conditioning system of claim 9, further comprising:
a first throttle (91), one end of the first throttle (91) being connected to the outdoor heat exchanger (80), the first indoor heat exchanger (61) and the second indoor heat exchanger (62) both being connected to the other end of the first throttle (91);
a second throttle member (92), the second throttle member (92) being located between the first throttle member (91) and the second indoor heat exchanger (62).
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