CN217057999U

CN217057999U - Air conditioning system

Info

Publication number: CN217057999U
Application number: CN202220659581.XU
Authority: CN
Inventors: 骆雄飞
Original assignee: GD Midea Air Conditioning Equipment Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2022-07-26
Anticipated expiration: 2032-03-24

Abstract

The utility model discloses an air conditioning system. The air conditioning system comprises a compressor, a four-way valve, an outdoor heat exchanger, a throttling device and an indoor heat exchanger which are communicated with each other and form a refrigerant circulation loop; the refrigerant circulation loop comprises an exhaust pipeline communicated with an exhaust port of the compressor; the compressor includes: the pump body is internally provided with an oil pool; the hollow interlayer is arranged close to one side of the pump body, which is provided with the oil pool, and is provided with an air inlet port and an air outlet port which are communicated with each other, the air inlet port is communicated with the exhaust pipeline through a first connecting pipeline, and the air outlet port is communicated with the exhaust pipeline through a second connecting pipeline; and the liquid storage tank is arranged on one side of the hollow interlayer far away from the pump body. The technical scheme of the utility model can promote air conditioning system's operational reliability.

Description

Air conditioning system

Technical Field

The utility model relates to an air conditioning technology field, in particular to air conditioning system.

Background

In a conventional integrated compressor, a liquid storage tank is generally arranged below an oil pool of a pump body, and the temperature of the liquid storage tank is low, so that large-amplitude heat exchange exists between the oil pool and the liquid storage tank, and the oil temperature in the oil pool is reduced. When the air conditioner is in the extreme operation working condition, the oil temperature of the oil pool of the compressor is lower under the influence of the temperature reduction of the low-temperature liquid storage tank, the viscosity of the lubricating oil is increased, and each friction pair in the compressor cannot be lubricated in time, so that the compressor finally fails to work, and the operation reliability of an air conditioning system is further influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main objective provides an air conditioning system aims at promoting air conditioning system's operational reliability.

In order to achieve the purpose, the utility model provides an air conditioning system, which comprises a compressor, a four-way valve, an outdoor heat exchanger, a throttling device and an indoor heat exchanger, wherein the compressor, the four-way valve, the outdoor heat exchanger, the throttling device and the indoor heat exchanger are mutually communicated and form a refrigerant circulation loop; the refrigerant circulation loop comprises an exhaust pipeline communicated with an exhaust port of the compressor; the compressor includes:

the pump body is internally provided with an oil pool;

the hollow interlayer is arranged close to one side of the pump body, which is provided with the oil pool, and is provided with an air inlet port and an air outlet port which are communicated with each other, the air inlet port is communicated with the exhaust pipeline through a first connecting pipeline, and the air outlet port is communicated with the exhaust pipeline through a second connecting pipeline; and

and the liquid storage tank is arranged on one side of the hollow interlayer far away from the pump body.

In one embodiment, the oil pool is located at the lower end of the interior of the pump body, the hollow interlayer is located on the lower side of the oil pool, and the liquid storage tank is located on the lower side of the hollow interlayer.

In one embodiment, the air conditioning system further comprises a check valve disposed in the second connecting line, and the check valve is used for preventing the fluid in the second connecting line from flowing back towards the air outlet port.

In one embodiment, the first connecting pipeline is provided with a switch valve for controlling the on-off of the pipeline.

In one embodiment, the switching valve is a solenoid valve.

In one embodiment, the refrigerant circulation circuit further includes a gas return pipe communicating with a gas return port of the compressor.

In one embodiment, the muffler is provided with a filter.

The technical scheme of the utility model through be equipped with the cavity intermediate layer on air conditioning system's compressor, the cavity intermediate layer communicates with refrigerant circulation circuit's exhaust pipe through first connecting tube way and second connecting tube way. High-temperature gas in the exhaust pipeline can enter the hollow interlayer through the gas inlet port and then returns to the exhaust pipeline through the gas outlet port. High-temperature gas gets into can the synchro heating pump body behind the cavity intermediate layer for lubricating oil temperature in the oil bath of the pump body risees, thereby can avoid the long-term low frequency operation of compressor or under the outdoor environment of low temperature, the oil temperature is cooled off excessively and leads to the too big condition of lubricating oil viscosity, guarantees that lubricating oil has better mobility and can in time lubricate each inside friction of compressor vice, thereby can promote the operational reliability of compressor, and then promotes air conditioning system's operational reliability. In addition, the air conditioning system adopts the heat source generated by the exhaust pipeline to heat the hollow interlayer, so that the energy can be fully utilized, and the energy consumption is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of an air conditioning system according to the present invention.

The reference numbers indicate:

reference numerals	Name(s)	Reference numerals	Name(s)
				100	Air conditioning system	40	Indoor heat exchanger
10	Compressor	50	Four-way valve
				11	Pump body	60	Exhaust pipeline
111	Oil pool	70	First connecting line
				12	Hollow interlayer	71	Switch valve
121	Air inlet port	80	Second connecting pipeline
				122	Air outlet port	81	One-way valve
13	Liquid storage tank	16	Communicating pipe
				14	Air return pipe	20	Outdoor heat exchanger
15	Filter	30	Throttling device

The realization, the functional characteristics and the advantages of the utility model are further explained by combining the embodiment and referring to the attached drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, if the meaning of "and/or" and/or "appears throughout, the meaning includes three parallel schemes, for example," A and/or B "includes scheme A, or scheme B, or a scheme satisfying both schemes A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides an air conditioning system 100.

Referring to fig. 1, in an embodiment of the present invention, the air conditioning system 100 includes a compressor 10, a four-way valve 50, an outdoor heat exchanger 20, a throttling device 30, and an indoor heat exchanger 40, which are communicated with each other and form a refrigerant circulation loop; the refrigerant circulation circuit includes an exhaust line 60 communicated with an exhaust port of the compressor 10; the compressor 10 includes a pump body 11, a hollow interlayer 12 and a liquid storage tank 13. Wherein, an oil pool 111 is arranged inside the pump body 11; the hollow interlayer 12 is arranged adjacent to the side of the pump body 11 where the oil sump 111 is arranged, the hollow interlayer 12 is provided with an air inlet port 121 and an air outlet port 122 which are communicated with each other, the air inlet port 121 is communicated with the exhaust pipeline 60 through a first connecting pipeline 70, and the air outlet port 122 is communicated with the exhaust pipeline 60 through a second connecting pipeline 80; the liquid storage tank 13 is arranged on one side of the hollow interlayer 12 far away from the pump body 11.

Specifically, the air conditioning system 100 includes a compressor 10, a four-way valve 50, an outdoor heat exchanger 20 (e.g., a condenser), a throttling device 30, and an indoor heat exchanger 40 (e.g., a heat exchanger) that communicate with each other and form a refrigerant circulation circuit. The four-way valve 50 has a first port, a second port, a third port and a fourth port, the compressor 10 includes an exhaust port disposed on the pump body 11 and a return air port disposed on the liquid storage tank 13, the first port is communicated with the exhaust port, the second port is communicated with the return air port, the third port is communicated with the outdoor heat exchanger 20, and the fourth port is communicated with the indoor heat exchanger 40. The four-way valve 50 can change the flow direction of the refrigerant in the refrigerant circulation circuit, thereby implementing different functional modes of the air conditioning system 100. When the first port is communicated with the third port and the second port is communicated with the fourth port, the air conditioning system 100 realizes a refrigeration function or a dehumidification function; when the first port is communicated with the fourth port and the second port is communicated with the third port, the air conditioning system 100 realizes a heating function.

Taking the cooling mode as an example, the exhaust port of the compressor 10 is communicated with the input end of the outdoor heat exchanger 20 (condenser) via the four-way valve 50, the output end of the outdoor heat exchanger 20 is communicated with the input end of the indoor heat exchanger 40 (evaporator) via the throttle device 30, and the output end of the indoor heat exchanger 40 is communicated with the return air port of the compressor 10 via the four-way valve 50, thereby forming a refrigerant circulation circuit. In a refrigeration mode, the pump body 11 of the compressor 10 compresses the refrigerant into a high-temperature high-pressure gaseous refrigerant, and transmits the gaseous refrigerant to the outdoor heat exchanger 20 through the exhaust pipe 60, the refrigerant is liquefied and cooled in the outdoor heat exchanger 20 to form a medium-temperature high-pressure liquid refrigerant, the medium-temperature high-pressure liquid refrigerant passes through the throttling device 30 to form a low-temperature low-pressure liquid refrigerant, and transmits the low-temperature low-pressure liquid refrigerant to the indoor heat exchanger 40, the refrigerant evaporates and absorbs heat in the indoor heat exchanger 40 to form a low-temperature low-pressure gaseous refrigerant, and then the low-temperature low-pressure gaseous refrigerant is transmitted into the liquid storage tank 14 through the air return port, so that a cycle period is formed. The operation of the air conditioning system 100 is well known to those skilled in the art and will not be described in detail herein.

In the air conditioning system 100, the compressor 10 is a power unit that realizes the circulation of the refrigerant along the refrigerant circulation circuit. The compressor 10 is an integrated compressor 10 in which a pump body 11 and a liquid storage tank 13 are integrated, has a compact overall structure and a small occupied space, and can be well applied to the miniaturization development of the compressor 10 and an air conditioner outdoor unit. The pump body 11 is a core power component, an oil sump 111 is disposed inside the pump body 11, the oil sump 111 is generally disposed at the bottom of the pump body 11, correspondingly, the liquid storage tank 13 is disposed below the pump body 11, and a hollow interlayer 12 is disposed between the pump body 11 and the liquid storage tank 13. The oil pool 111 is used for storing lubricating oil, the liquid storage tank 13 is used for storing low-temperature refrigerant and returned lubricating oil, the liquid storage tank 13 is connected with the pump body 11 through a communication pipe 16, and the refrigerant and the lubricating oil in the liquid storage tank 13 can be conveyed into the pump body 11 through the communication pipe 16. The hollow interlayer 12 is arranged between the liquid storage tank 13 and the pump body 11, so that a certain heat insulation effect can be achieved. The hollow sandwich 12 has an inlet port 121, an outlet port 122, and a hollow cavity communicating the inlet port 121 with the outlet port 122. The air inlet port 121 is communicated with the exhaust line 60 through the first connection line 70, the air outlet port 122 is communicated with the exhaust line 60 through the second connection line 80, and the first connection line 70 can be connected or disconnected by controlling the switch valve 71. The switching valve 71 includes, but is not limited to, a mechanical valve or an electromagnetic valve, as long as the conduction and the interruption of the pipeline can be controlled. Alternatively, in the present embodiment, the on-off valve 71 employs a solenoid valve.

The technical scheme of the utility model through be equipped with cavity intermediate layer 12 on air conditioning system 100's compressor 10, cavity intermediate layer 12 communicates with refrigerant circulation circuit's exhaust pipe 60 through first connecting line 70 and second connecting line 80. The high temperature gas in the exhaust duct 60 can enter the hollow sandwich 12 through the inlet port 121 and then return to the exhaust duct 60 through the outlet port 122. High-temperature gas can heat pump body 11 after getting into cavity intermediate layer 12 in step for the lubricating oil temperature in the oil bath 111 of pump body 11 risees, thereby can avoid compressor 10 long-term low frequency operation or under the low temperature outdoor environment, the oil temperature is cooled off excessively and leads to the too big condition of lubricating oil viscosity, guarantee that lubricating oil has better mobility and can in time lubricate each inside friction of compressor 10 vice, thereby can promote compressor 10's operational reliability, and then promote air conditioning system 100's operational reliability. In addition, the air conditioning system 100 heats the hollow interlayer 12 by using a heat source generated by the exhaust pipe 60, so that energy can be fully utilized and energy consumption can be reduced.

It should be noted that, in practical applications, according to different application scenarios of the compressor 10, the compressor 10 may be a vertical structure or a horizontal structure, and accordingly, the pump body 11, the hollow interlayer 12, and the liquid storage tank 13 may be vertically arranged next to each other, or may be horizontally arranged next to each other. In order to better adapt the air conditioning system 100, the compressor 10 is generally of a vertical structure, and in one embodiment, the oil pool 111 is located at the lower end of the interior of the pump body 11, the hollow interlayer 12 is located at the lower side of the oil pool 111, and the liquid storage tank 13 is located at the lower side of the hollow interlayer 12.

In order to facilitate the on-off control of the lines, in one embodiment the first connecting line 70 is provided with an on-off valve 71 for controlling the on-off of the lines. In a normal case, the on-off valve 71 is in a closed state by default after the air conditioner is turned on, and the first connection pipe 70 is blocked at this time; when the oil sump 111 in the compressor 10 needs to be heated, the switching valve 71 is opened and the first connection line 70 is conducted.

In order to prevent the high-temperature gas in the exhaust pipe 60 from entering the hollow interlayer 12 without heating the oil pool 111, in one embodiment, the air conditioning system 100 further includes a check valve 81 disposed in the second connecting pipe 80, and the check valve 81 is used for preventing the fluid in the second connecting pipe 80 from flowing back towards the air outlet port 122. Specifically, by providing the check valve 81 on the second connecting line 80, when the on-off valve 71 is opened, the gas in the hollow interlayer 12 flows back to the exhaust line 60 through the outlet port 122 and the check valve 81. When the switch valve 71 is closed, the high-temperature gas in the exhaust pipe 60 does not enter the hollow interlayer 12 through the second connecting pipe 80 and the gas outlet port 122.

In one embodiment, the refrigerant circulation loop further includes a muffler 14 communicating with the return air port of the compressor 10, and the muffler 14 is provided with a filter 15. Specifically, the refrigerant and the lubricating oil in the refrigerant circulation loop can return to the compressor 10 through the air return pipe 14, and the filter 15 is arranged on the air return pipe 14, so that impurities can be filtered, the phenomenon that the compressor 10 is damaged due to the fact that the impurities enter the compressor 10 for a long time and are accumulated is avoided, and the operation reliability of the compressor 10 and the air conditioning system 100 can be further improved.

In addition, to avoid significant heat transfer from the hollow interlayer to the reservoir, in one embodiment, the compressor 10 further includes a thermal insulation layer disposed between the hollow interlayer 12 and the reservoir 13. The heat transfer from hollow sandwich layer 12 to liquid storage tank 13 can be isolated by the thermal insulation layer, so as to ensure that the heat in hollow sandwich layer 13 can be transferred to pump body 11 as much as possible. Optionally, the heat insulation layer has a hollow cavity, and the hollow cavity is filled with a heat insulation material or subjected to vacuum pumping treatment, so that a better heat insulation effect is achieved.

The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the inventive concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. An air conditioning system comprises a compressor, a four-way valve, an outdoor heat exchanger, a throttling device and an indoor heat exchanger which are communicated with each other and form a refrigerant circulation loop; the refrigerant circulation loop comprises an exhaust pipeline communicated with an exhaust port of the compressor; characterized in that the compressor comprises:

the pump body is internally provided with an oil pool;

2. The air conditioning system as claimed in claim 1, wherein said oil sump is located at a lower end of an interior of said pump body, said hollow sandwich is located at a lower side of said oil sump, and said liquid reservoir is located at a lower side of said hollow sandwich.

3. The air conditioning system as claimed in claim 1, further comprising a check valve provided in the second connecting line for preventing the fluid in the second connecting line from flowing back toward the outlet port.

4. The air conditioning system as claimed in claim 1, wherein the first connection pipe is provided with a switching valve for controlling on/off of the pipe.

5. The air conditioning system as claimed in claim 4, wherein the switching valve employs a solenoid valve.

6. The air conditioning system as claimed in claim 1, wherein said refrigerant circulation circuit further includes a return air pipe communicating with a return air port of said compressor.

7. An air conditioning system as claimed in claim 6, wherein the return air duct is provided with a filter.