CN215372706U

CN215372706U - Air conditioner outdoor unit, air conditioner indoor unit and air conditioning system

Info

Publication number: CN215372706U
Application number: CN202121481768.7U
Authority: CN
Inventors: 崔渊博; 张铁钢
Original assignee: GD Midea Heating and Ventilating Equipment Co Ltd; Hefei Midea Heating and Ventilating Equipment Co Ltd
Current assignee: GD Midea Heating and Ventilating Equipment Co Ltd; Hefei Midea Heating and Ventilating Equipment Co Ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2021-12-31
Anticipated expiration: 2031-06-30

Abstract

The utility model discloses an air conditioner outdoor unit, an air conditioner indoor unit and an air conditioner system, wherein the air conditioner outdoor unit comprises a compressor, a four-way valve and an outdoor heat exchanger, and the compressor is provided with an exhaust port and a return air port; the four-way valve is provided with a first port, a second port, a third port and a fourth port, the exhaust port is connected with the first port through a first pipe, the second port is connected with a second pipe, and the third port is connected with the air return port through a third pipe; the outdoor heat exchanger is provided with a first interface and a second interface, the first interface is connected with the fourth interface through a fourth pipe, and the second interface is connected with a fifth pipe; at least one of the first pipe, the second pipe, the third pipe, the fourth pipe, and the fifth pipe is a flexible pipe. The air conditioner outdoor unit provided by the embodiment of the utility model has the advantages of high reliability, low cost, convenience in installation and the like.

Description

Air conditioner outdoor unit, air conditioner indoor unit and air conditioning system

Technical Field

The utility model relates to the technical field of air conditioner manufacturing, in particular to an air conditioner outdoor unit, an air conditioner indoor unit and an air conditioning system.

Background

The air conditioner refers to an apparatus for cooling or heating an indoor space by using a refrigeration cycle. The refrigeration cycle includes a compressor, a condenser, an expansion device, an evaporator, and a plurality of pipes. The compressor, the condenser, the expansion device, and the evaporator are connected in sequence by a plurality of pipes, and the refrigerant circulates through the compressor, the condenser, the expansion device, and the evaporator through these pipes. The piping in the related art is mainly made of a copper material or a stainless steel material. In the case of a pipe having a large pipe diameter and a thick pipe wall, when the air conditioning system is installed on site, the pipe is difficult to be manually bent, which causes problems of high cost and poor reliability of the air conditioning system.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.

Therefore, the embodiment of the utility model provides an air conditioner outdoor unit to solve the technical problems of high cost and poor reliability of the air conditioner outdoor unit.

The embodiment of the utility model provides an air conditioner indoor unit, which aims to solve the technical problems of high cost and poor reliability of the air conditioner indoor unit.

The embodiment of the utility model provides an air conditioning system, which aims to solve the technical problems of high cost and poor reliability of the air conditioning system.

An outdoor unit of an air conditioner according to an embodiment of the present invention includes:

a compressor having a discharge port and a return port;

the four-way valve is provided with a first port, a second port, a third port and a fourth port, the exhaust port is connected with the first port through a first pipe, the second port is connected with a second pipe, and the third port is connected with the air return port through a third pipe; and

the outdoor heat exchanger is provided with a first interface and a second interface, the first interface is connected with the fourth interface through a fourth pipe, and the second interface is connected with a fifth pipe;

at least one of the first, second, third, fourth, and fifth piping is flexible piping including a flexible pipe section and a plurality of rigid pipe sections, two of the plurality of rigid pipe sections being end rigid pipe sections, the flexible pipe section being provided between the two end rigid pipe sections in an extending direction of the flexible piping.

The air conditioner outdoor unit provided by the embodiment of the utility model has the advantages of high reliability, low cost, convenience in installation and the like.

In some embodiments, the flexible tube segment and the plurality of rigid tube segments are a unitary structure.

In some embodiments, the flexible tube segment comprises a corrugated tube segment or a threaded tube segment.

In some embodiments, the flexible tube segment is a stainless steel tube segment or a rubber tube segment.

In some embodiments, the flexible pipe section has first and second connection portions opposing each other in an extending direction of the flexible pipe, each of the first and second connection portions being fitted over one of the plurality of rigid pipe sections.

In some embodiments, the flexible pipe section is provided in plurality, and the plurality of flexible pipe sections and the plurality of rigid pipe sections are alternately arranged in the extending direction of the flexible pipe.

In some embodiments, the oil separator further comprises a first inlet and a first outlet, the outlet is connected to the first inlet by a sixth tubing, the first outlet is connected to the first port by the first tubing, and the sixth tubing is flexible tubing.

In some embodiments, the gas-liquid separator further comprises a second inlet and a second outlet, the third port is connected to the second inlet through a third pipe, the second outlet is connected to the return port through a seventh pipe, and the seventh pipe is a flexible pipe.

An air conditioning indoor unit according to an embodiment of the present invention includes:

each expansion device is provided with an outdoor heat exchanger interface and an indoor heat exchanger interface, and each outdoor heat exchanger interface is connected with the outdoor heat exchanger through an eighth pipe; and

the indoor heat exchangers are in one-to-one correspondence with the expansion devices, each indoor heat exchanger is provided with a third interface and a fourth interface, the third interface of each indoor heat exchanger is connected with the corresponding indoor heat exchanger interface of the expansion device through a ninth pipe, and the fourth interface of each indoor heat exchanger is connected with a compressor through a tenth pipe;

at least one of the eighth pipe, the ninth pipe, and the tenth pipe is a flexible pipe including a flexible pipe section and a plurality of rigid pipe sections, two of the plurality of rigid pipe sections being end rigid pipe sections, the flexible pipe section being provided between the two end rigid pipe sections in an extending direction of the flexible pipe.

The air conditioner indoor unit provided by the embodiment of the utility model has the advantages of high reliability, low cost, convenience in installation and the like.

The air conditioning system comprises an air conditioning outdoor unit and an air conditioning indoor unit connected with the air conditioning outdoor unit, wherein the air conditioning outdoor unit is the air conditioning outdoor unit according to the embodiment of the utility model; and/or

The air-conditioning indoor unit is the air-conditioning indoor unit according to the embodiment of the utility model.

The air conditioning system provided by the embodiment of the utility model has the advantages of high reliability, low cost, convenience in installation and the like.

Drawings

Fig. 1 is a flowchart of an outdoor unit of an air conditioner according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of an outdoor unit of an air conditioner according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of the sixth pipe in fig. 2.

Fig. 4 is a schematic structural view of the seventh pipe in fig. 2.

Fig. 5 is another schematic structural view of a flexible pipe of an outdoor unit of an air conditioner according to an embodiment of the present invention.

Reference numerals:

an outdoor unit of an air conditioner 100;

a compressor 1; a return air port 101; an exhaust port 102;

a four-way valve 2; a first port 201; a second port 202; a third port 203; a fourth port 204;

an outdoor heat exchanger 3; a first interface 301; a second interface 302;

a first pipe 41; a second pipe 42; a third pipe 43; a fourth piping 44; a fifth pipe 45; a sixth pipe 46; a seventh pipe 47;

an oil separator 5; a first inlet 501; a first air outlet 502;

a gas-liquid separator 6; a second inlet 601; a second air outlet 602;

a rigid pipe section 401; an end rigid tube section 4011; an intermediate rigid tube section 4012; flexible tube segment 402; first flexible tube segment 4021; second flexible tube segment 4022; a first connection portion 4023; a second connection portion 4024;

a liquid side stop valve 7;

and a gas side stop valve 8.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

As shown in fig. 1 to 5, an outdoor unit 100 of an air conditioner according to an embodiment of the present invention includes a compressor 1, a four-way valve 2, and an outdoor heat exchanger 3.

The compressor 1 has a discharge port 102 and a return port 101. The four-way valve 2 has a first port 201, a second port 202, a third port 203, and a fourth port 204, the first port 201 is connected to the exhaust port 102 via a first pipe 41, the second port 202 is connected to a second pipe 42, and the third port 203 is connected to the return port 101 via a third pipe 43. The outdoor heat exchanger 3 has a first port 301 and a second port 302, the fourth port 204 is connected to the first port 301 via the fourth pipe 44, and the second port 302 is connected to the fifth pipe 45.

At least one of the first pipe 41, the second pipe 42, the third pipe 43, the fourth pipe 44, and the fifth pipe 45 is a flexible pipe including a flexible pipe segment 402 and a plurality of rigid pipe segments 401, two of the plurality of rigid pipe segments 401 are end rigid pipe segments 4011, and the flexible pipe segment 402 is provided between the two end rigid pipe segments 4011 in an extending direction of the flexible pipe.

The second pipe 42 is used for connecting to an indoor heat exchanger of the indoor unit of the air conditioner, and the fifth pipe 45 is used for connecting to an expansion device of the indoor unit of the air conditioner, thereby connecting the outdoor unit of the air conditioner to the indoor unit of the air conditioner. Preferably, the second pipe 42 is provided with a liquid side shutoff valve 7, and the fifth pipe 45 is provided with a gas side shutoff valve 8.

The flexible pipe as at least one of the first pipe 41, the second pipe 42, the third pipe 43, the fourth pipe 44, and the fifth pipe 45 is: one of the first pipe 41, the second pipe 42, the third pipe 43, the fourth pipe 44, and the fifth pipe 45 is a flexible pipe, and the other of the first pipe 41, the second pipe 42, the third pipe 43, the fourth pipe 44, and the fifth pipe 45 is a rigid pipe in the related art; alternatively, two of the first pipe 41, the second pipe 42, the third pipe 43, the fourth pipe 44, and the fifth pipe 45 are flexible pipes, and the other of the first pipe 41, the second pipe 42, the third pipe 43, the fourth pipe 44, and the fifth pipe 45 are rigid pipes in the related art; alternatively, three of the first pipe 41, the second pipe 42, the third pipe 43, the fourth pipe 44, and the fifth pipe 45 are flexible pipes, and the other of the first pipe 41, the second pipe 42, the third pipe 43, the fourth pipe 44, and the fifth pipe 45 is a rigid pipe in the related art; alternatively, one of the first pipe 41, the second pipe 42, the third pipe 43, the fourth pipe 44, and the fifth pipe 45 is a rigid pipe in the related art, and the other of the first pipe 41, the second pipe 42, the third pipe 43, the fourth pipe 44, and the fifth pipe 45 is a flexible pipe; alternatively, all of the first pipe 41, the second pipe 42, the third pipe 43, the fourth pipe 44, and the fifth pipe 45 are flexible pipes. The number of flexible pipes in the first pipe 41, the second pipe 42, the third pipe 43, the fourth pipe 44, and the fifth pipe 45 can be determined according to the field situation, the position of the member to be connected, and the like.

The two end rigid pipe segments 4011 are used as joints of flexible piping to connect two members to be connected. Specifically, when two connected components are connected by flexible piping, one of the two end rigid pipe sections 4011 is connected to an interface of one of the two connected components, and the other of the two end rigid pipe sections 4011 is connected to an interface of the other of the two connected components, so that the two connected components are connected by the flexible piping. For example, when the fourth piping 41 is flexible piping, one of the two end rigid pipe sections 4011 is connected to the first port 301 of the outdoor heat exchanger 3, and the other of the two end rigid pipe sections 4011 is connected to the fourth port 204 of the four-way valve 2, so that the outdoor heat exchanger 3 is connected to the four-way valve 2.

In the related art, a compressor, a four-way valve, and an outdoor heat exchanger in an outdoor unit of an air conditioner are connected by a plurality of pipes. If the pipe diameter of the pipe is large and the pipe wall is thick, the pipe is difficult to be manually bent when the air conditioner outdoor unit is installed on site. Therefore, the pipes are required to satisfy a certain processing accuracy, and when the pipes are connected to the corresponding connected member (compressor, four-way valve, or outdoor heat exchanger) in the field, the pipes are also required to satisfy a certain assembling accuracy so that the pipes can be reliably connected to the corresponding connected member, which results in a high cost of the outdoor unit of the air conditioner. When one of the machining precision and the assembling precision does not meet the requirement, the joint of the pipe can only be forcibly aligned with the interface of the corresponding connected part, so that stress exists between the joint of the pipe and the interface of the corresponding connected part, the connection stability between the pipe and the corresponding connected part is poor, the joint of the pipe and the corresponding connected part has a large risk of refrigerant leakage, and the air conditioner outdoor unit is inconvenient to assemble and poor in reliability.

In the outdoor unit 100 of the air conditioner according to the embodiment of the present invention, at least one of the first pipe 41, the second pipe 42, the third pipe 43, the fourth pipe 44, and the fifth pipe 45 is a flexible pipe, and the flexible pipe includes a flexible pipe section 402 and two end rigid pipe sections 4011. When the outdoor unit 100 of the air conditioner is installed on site, the flexible pipe segment 402 of the flexible pipe is bent, so that the rigid pipe segments 4011 at both ends of the flexible pipe can be aligned with the joints of the two connected members, thereby ensuring stable connection between the flexible pipe and the two connected members.

In addition, when the machining precision of the flexible pipe is low or the field assembly precision is low, the flexible pipe section 402 can be bent to align the two end rigid pipe sections 4011 of the flexible pipe with the interfaces of the two connected components, so that the stable connection between the flexible pipe and the two connected components can be ensured.

Therefore, the risk of refrigerant leakage caused by stress between the flexible pipe and the connected component can be reduced, and the reliability of the air conditioner outdoor unit can be improved. And the processing precision and the assembly precision of the flexible tubing can be reduced, the cost of the air conditioner outdoor unit is reduced, and the installation of the air conditioner outdoor unit is convenient.

Therefore, the outdoor unit 100 of the air conditioner according to the embodiment of the present invention has the advantages of high reliability, low cost, and convenience in installation.

In addition, when welding is carried out in a workshop or maintenance is carried out on site, the flexible pipe can be easily bent, so that the manufacturing and the maintenance of the air conditioner outdoor unit are convenient.

In some embodiments, the outdoor unit 100 further includes an oil separator 5, the oil separator 5 has a first inlet 501 and a first outlet 502, the outlet 102 is connected to the first inlet 501 via a sixth pipe 46, the first outlet 502 is connected to the first port 201 via a first pipe 41, and the sixth pipe 46 is a flexible pipe.

Specifically, as shown in fig. 1, the sixth piping 46 includes a flexible pipe section 402 and two end rigid pipe sections 4011, one of the two end rigid pipe sections 4011 is connected to the gas discharge port 102 of the compressor 1, and the other of the two end rigid pipe sections 4011 is connected to the first inlet 501 of the oil separator 5. One end of the first pipe 41 is connected to the first outlet 502 of the oil separator 5, and the other end of the first pipe 41 is connected to the first port 201 of the four-way valve 2.

Thus, when the compressor 1 and the oil separator 5 are connected by the sixth pipe 46, the flexible pipe section 402 of the sixth pipe 46 is bent to align the two end rigid pipe sections 4011 of the sixth pipe 46 with the exhaust port 102 of the compressor 1 and the first inlet 501 of the oil separator 5, respectively, thereby ensuring reliable connection of the compressor 1 and the oil separator 5.

In some embodiments, the outdoor unit 100 further includes a gas-liquid separator 6, the gas-liquid separator 6 has a second inlet 601 and a second outlet 602, the third port 203 is connected to the second inlet 601 through a third pipe 43, the second outlet 602 is connected to the return port 101 through a seventh pipe 47, and the seventh pipe 47 is a flexible pipe.

Specifically, as shown in fig. 1, one end of the third pipe 43 is connected to the third port 203 of the four-way valve 2, and the other end of the third pipe 43 is connected to the second inlet 601 of the gas-liquid separator 6. The seventh piping 47 includes a flexible pipe section 402 and two end rigid pipe sections 4011, one of the two end rigid pipe sections 4011 is connected to the second outlet port 602 of the gas-liquid separator 6, and the other of the two end rigid pipe sections 4011 is connected to the return port 101 of the compressor 1.

Thus, when the gas-liquid separator 6 is connected to the compressor 1 by the seventh pipe 47, the flexible pipe section 402 of the seventh pipe 47 is bent to align the two end rigid pipe sections 4011 of the seventh pipe 47 with the second gas outlet 602 of the gas-liquid separator 6 and the return port 101 of the compressor 1, respectively, thereby ensuring reliable connection of the gas-liquid separator 6 to the compressor 1.

In some embodiments, flexible pipe section 402 is provided in plurality, and a plurality of flexible pipe sections 402 and a plurality of rigid pipe sections 401 are alternately arranged along the extending direction of the flexible pipe.

For example, as shown in fig. 3, flexible tube segment 402 of sixth tubing 46 is provided in two segments, first flexible tube segment 4021 and second flexible tube segment 4022, respectively, and sixth tubing 46 further includes an intermediate rigid tube segment 4012, with first flexible tube segment 4021 being provided between one of end rigid tube segments 4011 and intermediate rigid tube segment 4012, and second flexible tube segment 4022 being provided between the other of end rigid tube segments 4011 and intermediate rigid tube segment 4012.

Thus, the flexible pipe can be bent at a plurality of positions by the plurality of flexible pipe sections 402, so that stable connection between two connected parts can be easily achieved by the flexible pipe.

Of course, in other embodiments, only one of flexible tube segments 402 may be provided. For example, as shown in fig. 4 and 5, only one flexible tube segment 402 is provided, only two rigid tube segments 401 are provided, and both rigid tube segments 401 are end rigid tube segments 4011 with flexible tube segment 402 disposed between two rigid tube segments 401.

It should be noted that flexible tube segment 402 may be disposed at a bend location. For example, first flexible tube segment 4021 and second flexible tube segment 4022 are shown in FIG. 3 as being disposed at a bend. Flexible tube segment 402 may also be disposed in a straight tube location. For example, flexible pipe segment 402 as shown in FIG. 4 is disposed in a straight pipe section.

In some embodiments, flexible tube section 402 and plurality of rigid tube sections 401 are a unitary structure.

That is, flexible tube section 402 and plurality of rigid tube sections 401 are integrally formed. Therefore, the design and processing of the flexible piping are convenient, and the manufacturing cost of the air conditioner outdoor unit is favorably reduced.

Alternatively, flexible tube segment 402 may be, but is not limited to, a corrugated tube segment or a threaded tube segment.

It will be appreciated that where flexible pipe segment 402 is a threaded pipe segment, the outer surface of flexible pipe segment 402 is formed with a helical recess and a helical protrusion.

Where flexible tube segment 402 is a corrugated tube segment, the outer surface of flexible tube segment 402 is formed with alternating annular ridges and annular valleys.

Thus, flexible tube segment 402 may not only bend, but may also undergo a small amount of elongation or shortening. Thus, by deforming the flexible pipe section 402, the two end rigid pipe sections 4011 of the flexible pipe can be more easily aligned with the interfaces of the two connected components, and stable connection between the pipe and the two connected components can be ensured. The method is favorable for further improving the reliability of the air conditioner outdoor unit, reducing the cost of the air conditioner outdoor unit and facilitating the installation of the air conditioner outdoor unit.

In some embodiments, flexible tube segment 402 is a stainless steel tube segment or a rubber tube segment.

For example, flexible tube section 402 is a bellows section, and bellows section 402 is formed from a stainless steel material. Alternatively, as shown in fig. 5, the flexible pipe section 402 is a rubber pipe section, two ends of the rubber pipe section are connected to two adjacent rigid pipe sections 401, respectively, and the two adjacent rigid pipe sections 401 are disposed at intervals along the extending direction of the flexible pipe.

When bellows section 402 is formed from a stainless steel material, it is preferred that the stainless steel material be 304L or 304.

Of course, the flexible tube section may also be a copper tube section. For example, the flexible tube section is a corrugated tube section, which is made of copper material.

In some embodiments, flexible tube section 402 has first and

second connectors

4023, 4024 opposite in the direction of extension thereof, each of first and

second connectors

4023, 4024 being sleeved over one of the plurality of rigid tube sections 401.

For example, as shown in fig. 5, a first connection 4023 and a second connection 4024 are formed at two ends of a rubber pipe section, and the two ends of the rubber pipe section are respectively sleeved on two adjacent rigid pipe sections 401.

Therefore, the connection reliability between the flexible pipe section 402 and the rigid pipe section can be improved, the risk of refrigerant leakage from the connection between the flexible pipe section 402 and the rigid pipe section can be reduced, and the reliability of the outdoor unit 100 of the air conditioner can be further improved.

The air conditioner indoor unit provided by the embodiment of the utility model comprises a plurality of expansion devices and a plurality of indoor heat exchangers, wherein the plurality of indoor heat exchangers correspond to the plurality of expansion devices one by one. Each expansion device is provided with an outdoor heat exchanger interface and an indoor heat exchanger interface, and each outdoor heat exchanger interface is connected with the outdoor heat exchanger through an eighth pipe. Each indoor heat exchanger has a third port and a fourth port, and the third port of each indoor heat exchanger is connected to the indoor heat exchanger port of the corresponding expansion device by a ninth pipe. And the fourth interface of each indoor heat exchanger is connected with the compressor through a tenth pipe.

Each of the outdoor heat exchanger ports may be connected to the fifth pipe 45 of the outdoor unit 100 of the air conditioner according to the embodiment of the present invention by an eighth pipe, so that each of the outdoor heat exchanger ports is connected to the outdoor heat exchanger 3 by an eighth pipe, and each of the expansion devices is connected to the outdoor heat exchanger 3. The fourth interface of each indoor heat exchanger may be connected to the second pipe 42 through a tenth pipe, so that the fourth interface of each indoor heat exchanger is connected to the compressor 1, and each indoor heat exchanger is connected to the compressor 1. And then the indoor unit of the air conditioner is connected with the outdoor unit of the air conditioner.

The flexible pipe as at least one of the eighth pipe, the ninth pipe, and the tenth pipe means: one of the eighth pipe, the ninth pipe, and the tenth pipe is a flexible pipe, and the other of the eighth pipe, the ninth pipe, and the tenth pipe is a rigid pipe in the related art; alternatively, one of the eighth pipe, the ninth pipe, and the tenth pipe is a rigid pipe in the related art, and the other of the eighth pipe, the ninth pipe, and the tenth pipe is a flexible pipe; alternatively, all of the eighth pipe, the ninth pipe, and the tenth pipe are flexible pipes. The number of flexible pipes in the eighth pipe, the ninth pipe, and the tenth pipe can be determined according to the field situation, the position of the member to be connected, and the like.

The two end rigid pipe sections are used as joints of flexible piping to realize the connection of two connected parts. Specifically, when two connected parts are connected by flexible piping, one of the two end rigid pipe sections is connected to the joint of one of the two connected parts, and the other of the two end rigid pipe sections is connected to the joint of the other of the two connected parts, so that the two connected parts are connected by the flexible piping. For example, when the ninth pipe is a flexible pipe, one of the two end rigid pipe sections is connected to the third port of the indoor heat exchanger, and the other of the two end rigid pipe sections is connected to the indoor heat exchanger port of the corresponding expansion device, so that the indoor heat exchanger is connected to the corresponding expansion device.

In the related art, an expansion device and an indoor heat exchanger in an indoor unit of an air conditioner are connected by a plurality of pipes. If the pipe diameter of the pipe is large and the pipe wall is thick, the pipe is difficult to be manually bent when the indoor unit of the air conditioner is installed on site. Therefore, the piping is required to satisfy a certain processing accuracy, and when the piping is connected to the corresponding connected member (expansion device or indoor heat exchanger) on site, the piping is also required to satisfy a certain assembling accuracy so that the reliable connection between the piping and the corresponding connected member can be ensured, resulting in a high cost of the air conditioning indoor unit. When one of the machining precision and the assembling precision does not meet the requirement, the joint of the pipe can only be forcibly aligned with the interface of the corresponding connected part, so that stress exists between the joint of the pipe and the interface of the corresponding connected part, the connection stability between the pipe and the corresponding connected part is poor, the joint of the pipe and the corresponding connected part has a large risk of refrigerant leakage, and the air conditioner indoor unit is inconvenient to assemble and poor in reliability.

In the air conditioning indoor unit according to the embodiment of the present invention, at least one of the eighth pipe, the ninth pipe, and the tenth pipe is a flexible pipe, and the flexible pipe includes a flexible pipe section and two rigid pipe sections having end portions. When the air conditioner indoor unit is installed on site, the flexible pipe sections of the flexible pipe are bent, so that the rigid pipe sections at the two ends of the flexible pipe can be aligned with the interfaces of the two connected parts, and the stable connection between the flexible pipe and the two connected parts is ensured.

In addition, when the processing precision of the flexible pipe is low or the field assembly precision is low, the flexible pipe section of the flexible pipe can be bent to align the rigid pipe sections at the two ends of the flexible pipe with the interfaces of the two connected parts, so that the stable connection between the flexible pipe and the two connected parts can be ensured.

Therefore, the risk of refrigerant leakage caused by stress between the flexible pipe and the connected part can be reduced, and the reliability of the air conditioning indoor unit can be improved. And the processing precision and the assembly precision of the flexible tubing can be reduced, the cost of the air-conditioning indoor unit is reduced, and the installation of the air-conditioning indoor unit is convenient.

Therefore, the air conditioner indoor unit provided by the embodiment of the utility model has the advantages of high reliability, low cost, convenience in installation and the like.

In addition, when welding is carried out in a workshop or maintenance is carried out on site, the flexible tubing can be easily bent, and therefore manufacturing and maintenance of the indoor unit of the air conditioner are facilitated.

For example, the flexible tube section of the eighth tubing is provided in two sections, a first flexible tube section and a second flexible tube section, the eighth tubing further comprising an intermediate rigid tube section, the first flexible tube section being provided between one of the end rigid tube sections and the intermediate rigid tube section, and the second flexible tube section being provided between the other of the end rigid tube sections and the intermediate rigid tube section.

Therefore, the flexible tubing can be bent at multiple positions through the plurality of flexible tube sections, so that stable connection between two connected parts can be realized through the flexible tubing more easily.

Of course, in other embodiments, only one flexible tube segment may be provided.

It should be noted that the flexible pipe section may be disposed at a curved portion, or may be disposed at a straight pipe portion.

That is, the flexible tube segment and the plurality of rigid tube segments are integrally formed. Therefore, the design and the processing of the flexible tubing are convenient, and the manufacturing cost of the air conditioner indoor unit is favorably reduced.

Preferably, the flexible tube section is a corrugated tube section.

Thereby, the flexible tube section may not only bend, but also undergo a small amount of elongation or shortening. Therefore, the two end rigid pipe sections of the flexible pipe can be more easily aligned with the interfaces of the two connected parts through the deformation of the flexible pipe sections, and the stable connection between the pipe and the two connected parts is ensured. The air conditioner indoor unit is favorable for further improving the reliability of the air conditioner indoor unit, reducing the cost of the air conditioner indoor unit and facilitating the installation of the air conditioner outdoor indoor unit.

For example, the flexible tube section is a bellows section that is made of a stainless steel material. Or the flexible pipe section is a rubber pipe section, two ends of the rubber pipe section are respectively connected with two adjacent rigid pipe sections, and the two adjacent rigid pipe sections are arranged at intervals along the extending direction of the flexible pipe.

In some embodiments, the flexible tube segment has first and second opposing connections in its direction of extension, each of the first and second connections fitting over one of the plurality of rigid tube segments.

For example, the two ends of the rubber pipe section form a first connecting part and a second connecting part respectively, and the two ends of the rubber pipe section are sleeved on the two adjacent rigid pipe sections respectively.

Therefore, the connection reliability between the flexible pipe section and the rigid pipe section can be improved, the risk of leakage of the refrigerant from the connection part of the flexible pipe section and the rigid pipe section is reduced, and the reliability of the air-conditioning indoor unit is further improved.

The air conditioning system comprises an air conditioning outdoor unit and an air conditioning indoor unit connected with the air conditioning outdoor unit, wherein the air conditioning outdoor unit is the air conditioning outdoor unit according to the embodiment of the utility model. The air-conditioning indoor unit can be an air-conditioning indoor unit in the prior art or an air-conditioning indoor unit according to an embodiment of the utility model.

When the air conditioning indoor unit is the air conditioning indoor unit according to the embodiment of the present invention, each of the outdoor heat exchanger ports is connected to the fifth pipe 45 of the air conditioning outdoor unit 100 according to the embodiment of the present invention by an eighth pipe, and each of the fourth ports of the indoor heat exchangers is connected to the second pipe 42 by a tenth pipe, so that the connection between the air conditioning indoor unit and the air conditioning outdoor unit is achieved.

Therefore, the air conditioning system has the advantages of high reliability, low cost, convenience in installation and the like.

The air conditioning system provided by the embodiment of the utility model has the following advantages:

(1) the flexible pipe section 402 is arranged on the flexible pipe, so that the flexibility of the pipe is increased, and the pipe can be easily bent during workshop welding or field maintenance of the pipe;

(2) due to the increase of the flexibility of the piping, the requirement on the dimensional accuracy of the pipe orifice of the piping is reduced, a small dimensional error is allowed to exist in the pipe orifice of the piping, and the requirement on the processing accuracy of the piping is reduced;

(3) due to the increase of the flexibility of the tubing, the stress problem caused by forced assembly of the tubing is reduced, and the reliability of the whole air conditioning system is improved.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are 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 the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. An outdoor unit of an air conditioner, comprising:

a compressor having a discharge port and a return port;

the outdoor heat exchanger is provided with a first interface and a second interface, the fourth interface is connected with the first interface through a fourth pipe, and the second interface is connected with a fifth pipe;

2. The outdoor unit of claim 1, wherein the flexible pipe section and the plurality of rigid pipe sections are of an integrated structure.

3. The outdoor unit of claim 1, wherein the flexible pipe section comprises a bellows pipe section or a screw pipe section.

4. The outdoor unit of claim 1, wherein the flexible pipe section is a stainless steel pipe section or a rubber pipe section.

5. The outdoor unit of claim 4, wherein the flexible pipe section has a first connection portion and a second connection portion opposite to each other in an extending direction of the flexible pipe, and each of the first connection portion and the second connection portion is fitted over one of the plurality of rigid pipe sections.

6. The outdoor unit of any one of claims 1 to 5, wherein the flexible pipe section is provided in plurality, and the plurality of flexible pipe sections and the plurality of rigid pipe sections are alternately arranged in an extending direction of the flexible pipe.

7. The outdoor unit of any one of claims 1 to 5, further comprising an oil separator having a first inlet and a first outlet, wherein the discharge port is connected to the first inlet by a sixth pipe, wherein the first outlet is connected to the first port by the first pipe, and wherein the sixth pipe is a flexible pipe.

8. The outdoor unit of any one of claims 1 to 5, further comprising a gas-liquid separator having a second inlet and a second outlet, the third port being connected to the second inlet by a third pipe, the second outlet being connected to the return port by a seventh pipe, the seventh pipe being a flexible pipe.

9. An indoor unit of an air conditioner, comprising:

10. An indoor unit of an air conditioner according to claim 9, wherein the flexible pipe section and the plurality of rigid pipe sections are of an integral structure.

11. An indoor unit of an air conditioner according to claim 9, wherein the flexible pipe section comprises a bellows pipe section or a screw pipe section.

12. An indoor unit of an air conditioner according to claim 9, wherein the flexible pipe section is a stainless steel pipe section or a rubber pipe section.

13. An indoor unit of an air conditioner according to claim 12, wherein the flexible pipe section has a first connection portion and a second connection portion opposed to each other in an extending direction of the flexible pipe, and each of the first connection portion and the second connection portion is fitted over one of the plurality of rigid pipe sections.

14. An indoor unit of an air conditioner according to any one of claims 9 to 13, wherein the flexible pipe section is provided in plurality, and the plurality of flexible pipe sections and the plurality of rigid pipe sections are alternately arranged in an extending direction of the flexible pipe.

15. An air conditioning system, comprising an outdoor unit of an air conditioner and an indoor unit of an air conditioner connected to the outdoor unit of the air conditioner, wherein the outdoor unit of the air conditioner is the outdoor unit of any one of claims 1 to 8; and/or

The indoor air-conditioning unit according to any one of claims 9 to 14.