Air conditioner connecting pipe

Abstract

The utility model relates to the technical field of household appliances, in particular to an air conditioner connecting pipe which is provided with a first three-way assembly connected with an indoor unit, a second three-way assembly connected with an outdoor unit and a connecting pipe located between the first three-way assembly and the second three-way assembly. According to the split type air conditioning system, the manufacturing cost of the air conditioner is reduced, and the problems that in an existing split type air conditioning system, the inner unit and the outer unit are connected through two connecting pipes, the manufacturing cost of the air conditioner is increased, and resource saving is not facilitated are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, specifically to an air conditioner connecting pipe. Background Art

[0002] In the fast-paced life of modern society, air conditioners, with their excellent temperature control performance and intelligent functions, have deeply integrated into people's daily life and working environment. It can not only provide a cool and pleasant indoor environment in the sweltering summer, but also bring a warm and comfortable feeling in the cold winter. At the same time, through advanced air purification technology, air conditioners can ensure indoor air quality and protect the health of residents. This all-round and intelligent environmental regulation ability makes people in modern life increasingly rely on air conditioners and become an indispensable technical support for the pursuit of high-quality life.

[0003] In a split air conditioner system, two connecting pipes are often used to connect the indoor unit and the outdoor unit. This configuration not only increases the manufacturing cost of the air conditioner but also is not conducive to saving resources.

[0004] The present utility model is studied and proposed in view of the deficiencies of the prior art. Summary of the Utility Model

[0005] In view of the problem that in the existing split air conditioner system mentioned above, two connecting pipes are often used to connect the indoor unit and the outdoor unit, and this configuration not only increases the manufacturing cost of the air conditioner but also is not conducive to saving resources, the technical solution adopted by the present utility model to solve its technical problems is as follows:

[0006] An air conditioner connecting pipe, including a device body, where the device body includes a first three-way component for connecting the indoor unit, a second three-way component for connecting the outdoor unit, and a connecting pipe located between the first three-way component and the second three-way component and used for transmitting refrigerant.

[0007] Further, the first three-way component includes a first connecting mechanism for connecting the evaporator, a second connecting mechanism located below the first connecting mechanism and used for connecting the expansion valve, and a third connecting mechanism. The second three-way component includes a fourth connecting mechanism for connecting the compressor, a fifth connecting mechanism located below the fourth connecting mechanism and used for connecting the condenser, and a sixth connecting mechanism. The sixth connecting mechanism is connected to the third connecting mechanism through the connecting pipe.

[0008] Further, the first connecting mechanism includes a first connecting pipe fitting, the second connecting mechanism includes a second connecting pipe fitting, the diameter of the first connecting pipe fitting is R1, the diameter of the second connecting pipe fitting is R2, and R1 < R2.

[0009] Further, the fourth connection mechanism includes a fourth connection pipe fitting, the fifth connection mechanism includes a fifth connection pipe fitting, the diameter of the fourth connection pipe fitting is R3, the diameter of the fifth connection pipe fitting is R4, and R3 < R4.

[0010] Further, a first connection protrusion is provided on one side of the first connection mechanism close to the evaporator, a second connection protrusion is provided on one side of the second connection mechanism close to the expansion valve, a fourth connection circular groove is provided on one side of the fourth connection mechanism close to the compressor, and a fifth connection circular groove is provided on one side of the fifth connection mechanism close to the condenser.

[0011] Further, the connecting pipe includes a pipe body, a first heat insulation sleeve sleeved on the outer side wall of the pipe body, a seventh connection mechanism for connecting with the first three-way assembly, and an eighth connection mechanism for connecting with the second three-way assembly.

[0012] Further, the seventh connection mechanism and the eighth connection mechanism are symmetrically arranged. The seventh connection mechanism includes a plug member connected to the pipe body, a nut located between the plug member and the pipe body, and a second heat insulation sleeve sleeved on the outer side of the plug member.

[0013] Further, the first three-way assembly includes a mounting base for respectively connecting the first connection mechanism, the second connection mechanism, and the third connection mechanism.

[0014] Further, the mounting base includes a first mounting port threadedly connected to the first connection mechanism, a second mounting port threadedly connected to the second connection mechanism, and a third mounting port threadedly connected to the third connection mechanism.

[0015] Further, the pipe body is made of copper material.

[0016] The beneficial effects of the present utility model are as follows:

[0017] By providing the first three-way assembly connected to the indoor unit, the second three-way assembly connected to the outdoor unit, and the connecting pipe located between the first three-way assembly and the second three-way assembly, the connecting pipe and the first three-way assembly and the second three-way assembly act together, which is beneficial to reducing the manufacturing cost of the air conditioner and effectively solves the problem that in the existing split air conditioner system, two connecting pipes are often used to connect the indoor unit and the outdoor unit. This configuration not only increases the manufacturing cost of the air conditioner but also is not conducive to saving resources.

[0018] The following will further illustrate the present utility model in conjunction with the drawings and specific embodiments. Description of the Drawings

[0019] Figure 1 is an exploded view of the device body of the present utility model;

[0020] Figure 2 One of the schematic structural diagrams of the first three-way component of the present utility model;

[0021] Figure 3 is Figure 2 The sectional view along line A-A;

[0022] Figure 4 Another schematic structural diagram of the first three-way component of the present utility model;

[0023] Figure 5 The exploded view of the first three-way component of the present utility model;

[0024] Figure 6 One of the schematic structural diagrams of the second three-way component of the present utility model;

[0025] Figure 7 is Figure 6 The sectional view along line B-B;

[0026] Figure 8 Another schematic structural diagram of the second three-way component of the present utility model;

[0027] Figure 9 The schematic flow diagram of the refrigeration mode of the present utility model;

[0028] Figure 10 The schematic flow diagram of the heating mode of the present utility model. Detailed implementation manners

[0029] The following will describe in detail the implementation manners of the present utility model with reference to the accompanying drawings.

[0030] As Figures 1 to 10 shown in the air-conditioning connecting pipe, it includes a device body 1, and the device body 1 includes a first three-way component 2 for connecting to the indoor unit, a second three-way component 3 for connecting to the outdoor unit, and a connecting pipe 4 located between the first three-way component 2 and the second three-way component 3 and used for transmitting refrigerant;

[0031] By providing a first three-way component connected to the indoor unit, a second three-way component connected to the outdoor unit, and a connecting pipe located between the first three-way component and the second three-way component, the connecting pipe acts together with the first three-way component and the second three-way component at the same time, so that both the gaseous refrigerant and the liquid refrigerant in the air conditioner can be transmitted through the same connecting pipe, which is beneficial to reducing the manufacturing cost of the air conditioner and effectively solves the problem that in the existing split air-conditioning system, two connecting pipes are often used to connect the indoor unit and the outdoor unit. This configuration not only increases the manufacturing cost of the air conditioner but also is not conducive to saving resources.

[0032] AsFigures 1 to 10 The first three-way component 2 shown includes a first connection mechanism 21 for connecting to an evaporator, a second connection mechanism 22 located below the first connection mechanism 21 and for connecting to an expansion valve, and a third connection mechanism 23. The second three-way component 3 includes a fourth connection mechanism 31 for connecting to a compressor, a fifth connection mechanism 32 located below the fourth connection mechanism 31 and for connecting to a condenser, and a sixth connection mechanism 33. The sixth connection mechanism 33 is connected to the third connection mechanism 23 through the connecting pipe 4;

[0033] Specifically, the first three-way component 2 includes a first connection mechanism 21, a second connection mechanism 22, and a third connection mechanism 23. In the indoor unit of the air conditioner, there are an evaporator and an expansion valve. The first connection mechanism 21 is connected to the evaporator, and the second connection mechanism 22 is connected to the expansion valve. The second three-way component 3 includes a fourth connection mechanism 31, a fifth connection mechanism 32, and a sixth connection mechanism 33. In the outdoor unit of the air conditioner, there are a compressor and a condenser. The fourth connection mechanism 31 is connected to the compressor, the fifth connection mechanism 32 is connected to the condenser, and the third connection mechanism 23 and the sixth connection mechanism 33 are connected through the connecting pipe 4. There is a communicating pipeline between the evaporator and the expansion valve, and there is also a communicating pipeline between the compressor and the condenser.

[0034] Refrigeration mode:

[0035] The evaporator transports the low-temperature and low-pressure gaseous refrigerant to the first connecting mechanism 21. The first connecting mechanism 21 is connected to the third connecting mechanism 23 so that the low-temperature and low-pressure gaseous refrigerant enters the third connecting mechanism 23. A small portion of the low-temperature and low-pressure gaseous refrigerant enters the second connecting mechanism 22, and this portion of the gaseous refrigerant does not interact with the expansion valve. Most of the low-temperature and low-pressure gaseous refrigerant enters the connecting pipe 4. The other end of the connecting pipe 4 is connected to the sixth connecting mechanism 33. A small portion of the low-temperature and low-pressure gaseous refrigerant enters the fifth connecting mechanism 32, and this portion of the gaseous refrigerant also does not interact with the condenser. The remaining low-temperature and low-pressure gaseous refrigerant enters the compressor through the fourth connecting mechanism 31. Under the action of the compressor, the low-temperature and low-pressure gaseous refrigerant becomes a high-temperature and high-pressure gaseous refrigerant. The compressor is connected to the condenser so that the high-temperature and high-pressure gaseous refrigerant can enter the condenser. Under the action of the condenser, the high-temperature and high-pressure gaseous refrigerant releases heat and thus transforms into a low-temperature and low-pressure liquid refrigerant. The liquid refrigerant sequentially passes through the fifth connecting mechanism 32 and the sixth connecting mechanism 33 and enters the connecting pipe 4, and then passes through the third connecting mechanism 23 and the second connecting mechanism 22 in sequence. Under the action of the expansion valve, the temperature of the low-temperature and low-pressure liquid refrigerant drops sharply. The liquid refrigerant with a lower temperature enters the evaporator. Under the action of the evaporator, the liquid refrigerant absorbs heat and thus becomes a low-temperature and low-pressure gaseous refrigerant. At this time, under the action of the refrigerant, the heat of the surrounding air is absorbed and thus becomes air with a lower temperature, which is discharged outside the air conditioner to achieve the refrigeration effect. The low-temperature and low-pressure gaseous refrigerant then continues to enter the third connecting mechanism 23 through the first connecting mechanism 21 to form a refrigeration cycle.

[0036] Heating mode:

[0037] Under the action of the expansion valve, the low-temperature and low-pressure liquid refrigerant enters the third connection mechanism 23 through the second connection mechanism 22. The liquid refrigerant in the third connection mechanism 23 does not enter the first connection mechanism 21. The liquid refrigerant enters the sixth connection mechanism 33 under the action of the connecting pipe 4. The liquid refrigerant in the sixth connection mechanism 33 also does not enter the fourth connection mechanism 31. It is transmitted to the condenser under the action of the fifth connection mechanism 32. The liquid refrigerant absorbs heat and is converted into a low-temperature and low-pressure gaseous refrigerant under the action of the condenser. The condenser is connected to the compressor so that the gaseous refrigerant is transmitted to the compressor. Under the action of the compressor, the low-temperature and low-pressure gaseous refrigerant is converted into a high-temperature and high-pressure gaseous refrigerant. Through the fourth connection mechanism 31, the high-temperature and high-pressure gaseous refrigerant is transmitted to the sixth connection mechanism 33. The high-temperature and high-pressure gaseous refrigerant is sequentially transmitted to the first connection mechanism 21 through the connecting pipe 4 and the third connection mechanism 23. The high-temperature and high-pressure gaseous refrigerant releases heat around the evaporator to increase the temperature of the surrounding air and is discharged outside the air conditioner to achieve the heating effect. At this time, the high-temperature and high-pressure gaseous refrigerant releases heat and is converted into a low-temperature and low-pressure liquid refrigerant. The evaporator is connected to the expansion valve, and the low-temperature and low-pressure liquid refrigerant is transmitted to the expansion valve and continues to be transmitted to the third connection mechanism 23 through the second connection mechanism 22 to form a heating cycle.

[0038] Further, the third connection mechanism 23 and the second connection mechanism 22 are at the same horizontal height, and the fifth connection mechanism 32 and the sixth connection mechanism 33 are at the same horizontal height.

[0039] As Figures 1 to 10 shown, the first connection mechanism 21 includes a first connection pipe fitting 211, the second connection mechanism 22 includes a second connection pipe fitting 221. The diameter of the first connection pipe fitting 211 is R1, and the diameter of the second connection pipe fitting 221 is R2, where R1 < R2;

[0040] Further, the first connection pipe fitting 211 is used to transmit gaseous refrigerant. When the gaseous refrigerant flows in the pipeline, its flow rate is relatively fast and it occupies a relatively large space. Since the gas is compressible, the first connection pipe fitting 211 can adopt a relatively small diameter R1. Secondly, while meeting the transmission requirements, the relatively small diameter setting of the first connection pipe fitting 211 is beneficial to saving resources and effectively reducing the material cost.

[0041] Further, the second connection pipe fitting 221 is used to transmit liquid refrigerant. When the liquid refrigerant flows in the pipeline, its flow rate is relatively slow and it occupies a relatively small space. The second connection pipe fitting 222 adopts a relatively large diameter R2, which can reduce the flow rate of the liquid refrigerant in the pipeline, thereby reducing the pressure drop and frictional loss, and at the same time ensuring that enough flow passes through.

[0042] Furthermore, stable refrigerant flow rate and pressure are crucial for the normal operation of the air conditioning system. By reasonably setting the diameters of the first connecting pipe fitting 211 and the second connecting pipe fitting 221, it is beneficial to ensure the stable transmission of the refrigerant in the system, thereby maintaining the stability and reliability of the system.

[0043] As Figures 1 to 10 shown, the fourth connecting mechanism 31 includes a fourth connecting pipe fitting 311, the fifth connecting mechanism 32 includes a fifth connecting pipe fitting 321, the diameter of the fourth connecting pipe fitting 311 is R3, the diameter of the fifth connecting pipe fitting 321 is R4, and R3 < R4;

[0044] Furthermore, the fourth connecting pipe fitting 311 is used to transmit gaseous refrigerant. When the gaseous refrigerant flows in the pipeline, its flow rate is relatively fast and it occupies a relatively large space. Due to the compressibility of the gas, the fourth connecting pipe fitting 311 can adopt a relatively small diameter R1; secondly, while meeting the transmission requirements, the relatively small diameter setting of the fourth connecting pipe fitting 311 is beneficial to saving resources and effectively reducing the material cost.

[0045] Furthermore, the fifth connecting pipe fitting 321 is used to transmit liquid refrigerant. When the liquid refrigerant flows in the pipeline, its flow rate is relatively slow and it occupies a relatively small space. The fifth connecting pipe fitting 321 adopts a relatively large diameter R2, which can reduce the flow rate of the liquid refrigerant in the pipeline, thereby reducing the pressure drop and frictional loss, and at the same time ensuring sufficient flow through.

[0046] Furthermore, stable refrigerant flow rate and pressure are crucial for the normal operation of the air conditioning system. By reasonably setting the diameters of the fourth connecting pipe fitting 311 and the fifth connecting pipe fitting 321, it is beneficial to ensure the stable transmission of the refrigerant in the system, thereby maintaining the stability and reliability of the system.

[0047] Furthermore, the diameter of the first connecting pipe fitting 211 is equal to the diameter of the fourth connecting pipe fitting 311, and the diameter of the second connecting pipe fitting 221 is equal to the diameter of the fifth connecting pipe fitting 321.

[0048] As Figures 1 to 10 shown, the first connecting mechanism 21 is provided with a first connecting protrusion 212 on the side close to the evaporator, the second connecting mechanism 22 is provided with a second connecting protrusion 222 on the side close to the expansion valve, the fourth connecting mechanism 31 is provided with a fourth connecting circular groove 312 on the side close to the compressor, and the fifth connecting mechanism 32 is provided with a fifth connecting circular groove 322 on the side close to the condenser;

[0049] Furthermore, the first connecting mechanism 21 can be tightly connected to the evaporator through the first connecting protrusion 212, the second connecting mechanism 22 can be tightly connected to the expansion valve through the second connecting protrusion 222, the fourth connecting mechanism 31 can be tightly connected to the compressor through the fourth connecting circular groove 312, and the fifth connecting mechanism 32 can be tightly connected to the condenser through the fifth connecting circular groove 322. This is conducive to ensuring that different connecting parts can only be correctly fitted together, effectively preventing connection errors, and reducing system failures or performance degradation caused by connection errors.

[0050] Furthermore, the first connecting protrusion 212, the second connecting protrusion 222, the fourth connecting circular groove 312, and the fifth connecting circular groove 322 can all increase the contact area and sealing performance of the connecting parts, which is conducive to reducing the risk of refrigerant leakage, effectively improving the operating efficiency of the system, and reducing energy loss.

[0051] As Figures 1 to 10 shown, the connecting pipe 4 includes a pipe body 41, a first heat-insulating sleeve 42 sleeved on the outer side wall of the pipe body 41, a seventh connecting mechanism 43 for connecting with the first three-way assembly 2, and an eighth connecting mechanism 44 for connecting with the second three-way assembly 3;

[0052] Specifically, the pipe body 41 is used to simultaneously transport liquid refrigerant and gaseous refrigerant. When transporting liquid refrigerant, it is located below the inner wall of the pipe body 41, and when transporting gaseous refrigerant, it is located above the inner wall of the pipe body 41, so that gaseous refrigerant and liquid refrigerant can be transported simultaneously in the pipe body 41.

[0053] Furthermore, the first heat-insulating sleeve 42 sleeved on the outer side wall of the pipe body 41 can effectively reduce the heat exchange between the pipe body 41 and the external environment, which is conducive to maintaining the temperature stability inside the pipe body 41, effectively preventing the refrigerant from losing cold or increasing heat due to the influence of the external temperature during the transmission process, and thus conducive to improving the energy efficiency of the system.

[0054] Furthermore, the seventh connecting mechanism 43 and the eighth connecting mechanism 44 are respectively used to connect with the first three-way assembly 2 and the second three-way assembly 3. Their settings are conducive to ensuring the stability and sealing performance of the connection, preventing refrigerant leakage. A stable connection can reduce connection looseness caused by vibration or pressure changes, while good sealing performance can ensure the efficient operation of the system.

[0055] As Figures 1 to 10 shown, the seventh connecting mechanism 43 and the eighth connecting mechanism 44 are symmetrically arranged. The seventh connecting mechanism 43 includes a plug member 431 connected to the pipe body 41, a nut 432 located between the plug member 431 and the pipe body 41, and a second heat-insulating sleeve 433 sleeved on the outer side of the plug member 431;

[0056] Furthermore, the symmetric arrangement of the seventh connecting mechanism 43 and the eighth connecting mechanism 44 helps to enhance the stability of the entire connecting structure. They can jointly bear various forces and torques from the pipe body 41 and the external environment, thereby reducing the risk of deformation or damage caused by asymmetric stress.

[0057] Furthermore, the plug member 431 can seal the hole or connecting component to prevent leakage of liquid or gas. In pipeline connection, the plug member 431 can closely fit on the pipe body 41 to form an effective sealing layer, which is beneficial to ensuring the safe operation of the pipeline system.

[0058] Furthermore, the nut 432 is used in cooperation with the plug member 431. By rotating the nut 432, a certain pressing force can be generated to make the connection between the plug member 431 and the pipe body 41 tighter, thereby further improving the sealing performance.

[0059] Furthermore, the second heat-insulating sleeve 433 covers the outside of the plug member 431, which can effectively isolate the external heat or cold air, reduce heat transfer to the pipeline or refrigerant, is beneficial to maintaining the thermal efficiency of the system, helps to maintain the temperature stability inside the pipeline, and reduces energy consumption.

[0060] Optionally, the nut 432 is a non-standard nut. The non-standard nut can be customized according to specific connection requirements, the size and material of the pipe body 41, and working environment and other factors, which is beneficial to ensuring the accuracy and stability of the connection. In some special application scenarios, such as high-pressure and high-temperature environments, the non-standard nut can provide better performance guarantee.

[0061] Installation method:

[0062] First, sleeved the first heat-insulating sleeve 42 on the outer wall of the pipe body 41, connect it with the pipe body 41 using the nut 432, and then process the flared portions at both ends of the pipe body 41; then, tighten the plug member 431 with the nut 432 to avoid loosening or falling off; finally, sleeved the second heat-insulating sleeve 433 on the nut 432 and the plug member 431, without leaving a gap between the second heat-insulating sleeve 433 and the first heat-insulating sleeve 42. At the same time, ensure that the plug member 431 is not exposed.

[0063] As Figures 1 to 10 shown, the first tee component 2 includes an installation base 5 for respectively connecting the first connecting mechanism 21, the second connecting mechanism 22, and the third connecting mechanism 23;

[0064] Furthermore, the connection structures of the connecting mechanisms of the first tee component 2 are the same as those of the connecting mechanisms of the second tee component 3.

[0065] Optionally, in some embodiments, the second connecting mechanism 22 and the third connecting mechanism 23 are integrally formed, a connecting hole is provided between the second connecting mechanism 22 and the third connecting mechanism 23, and the first connecting mechanism 21 is threadedly connected to the connecting hole.

[0066] Optionally, in some embodiments, the first connecting mechanism 21, the second connecting mechanism 22, and the third connecting mechanism 23 are integrally formed.

[0067] Optionally, in some other embodiments, the first tee assembly 2 includes a mounting base 5, and a plurality of mounting ports connected to each connecting mechanism are respectively provided on the mounting base 5. The connection relationship between the mounting ports and each connecting mechanism can adopt connection methods such as threaded connection, snap connection, slot connection, welding, etc.

[0068] Furthermore, as the core connecting part of the first tee assembly 2, the mounting base 5 can centrally connect three different connecting mechanisms, making the structure of the first tee assembly 2 more compact; secondly, the integration of the three connecting mechanisms through the mounting base 5 is beneficial to simplifying the complexity of the device and improving the overall integration degree.

[0069] Furthermore, the mounting base 5 provides a stable support and connection platform for the three connecting mechanisms, which is beneficial to ensuring the firm and reliable connection between them and helping to reduce the problems of connection loosening or falling off caused by factors such as vibration and impact.

[0070] As Figures 1 to 10 shown, the mounting base 5 includes a first mounting port 51 threadedly connected to the first connecting mechanism 21, a second mounting port 52 threadedly connected to the second connecting mechanism 22, and a third mounting port 53 threadedly connected to the third connecting mechanism 23;

[0071] Furthermore, as a preferred but non-limiting manner of the present invention, the connection between the first connecting mechanism 21 and the first mounting port 51, the connection between the second connecting mechanism 22 and the second mounting port 52, and the connection between the third connecting mechanism 23 and the third mounting port 53 all adopt threaded connections. The threaded connection provides a firm mechanical fixation, which is beneficial to ensuring that each connecting mechanism will not loosen or fall off during use; secondly, the setting of the threaded connection can withstand a large mechanical load, which is beneficial to enhancing the stability of the system.

[0072] Furthermore, the threaded connection makes the installation and disassembly processes simpler and faster. Users can fix the connecting mechanism to the mounting port by rotating nuts or bolts, quickly completing installation or maintenance, which is beneficial to reducing the installation time and difficulty.

[0073] As Figures 1 to 10 shown, the pipe body 41 is made of copper material;

[0074] Optionally, in some embodiments, the pipe body 41 can be made of stainless steel.

[0075] Optionally, in some embodiments, the pipe body 41 can be made of aluminum.

[0076] Furthermore, as a preferred mode rather than a limitation of the present utility model, the pipe body 41 is made of copper material. The copper material has excellent heat conduction performance and can transfer heat efficiently, which helps to quickly transfer heat from one place to another during the refrigeration or heating process, thereby improving the heat exchange efficiency and overall performance of the system.

[0077] Furthermore, copper has strong corrosion resistance and can remain stable especially in the refrigerant or humid environment, which helps to extend the service life of the pipe body 41 and reduce the risk of leakage or system failure caused by corrosion.

[0078] The implementation manner of this embodiment is as follows:

[0079] An air-conditioning connecting pipe, including a device body 1. The device body 1 includes a first three-way component 2 for connecting to the indoor unit, a second three-way component 3 for connecting to the outdoor unit, and a connecting pipe 4 located between the first three-way component 2 and the second three-way component 3 and used for transmitting refrigerant. The first three-way component 2 includes a first connecting mechanism 21 for connecting to the evaporator, a second connecting mechanism 22 located below the first connecting mechanism 21 and used for connecting to the expansion valve, and a third connecting mechanism 23. The second three-way component 3 includes a fourth connecting mechanism 31 for connecting to the compressor, a fifth connecting mechanism 32 located below the fourth connecting mechanism 31 and used for connecting to the condenser, and a sixth connecting mechanism 33. The sixth connecting mechanism 33 is connected to the third connecting mechanism 23 through the connecting pipe 4, so that both the gaseous refrigerant and the liquid refrigerant in the air conditioner can be transmitted through the same connecting pipe, which is beneficial to reducing the manufacturing cost of the air conditioner and effectively solves the problem that in the existing split air-conditioning system, two connecting pipes are often used to connect the indoor unit and the outdoor unit. This configuration not only increases the manufacturing cost of the air conditioner but also is not conducive to saving resources.

[0080] The above only further illustrates the technical content of the present utility model with embodiments to make it easier for readers to understand, but it does not mean that the implementation manners of the present utility model are limited to this. Any technical extension or re-creation made according to the present utility model is protected by the present utility model. The protection scope of the present utility model is subject to the claims.

Claims

1. Air conditioner connecting pipe, comprising a device body (1), characterized in that: The device body (1) includes a first three-way assembly (2) for connecting to the indoor unit, a second three-way assembly (3) for connecting to the outdoor unit, and a connecting pipe (4) located between the first three-way assembly (2) and the second three-way assembly (3) and used for transmitting refrigerant.

2. The air conditioner connecting pipe according to claim 1, wherein: The first three-way assembly (2) includes a first connecting mechanism (21) for connecting to the evaporator, a second connecting mechanism (22) located below the first connecting mechanism (21) and used for connecting to the expansion valve, and a third connecting mechanism (23). The second three-way assembly (3) includes a fourth connecting mechanism (31) for connecting to the compressor, a fifth connecting mechanism (32) located below the fourth connecting mechanism (31) and used for connecting to the condenser, and a sixth connecting mechanism (33). The sixth connecting mechanism (33) is connected to the third connecting mechanism (23) through the connecting pipe (4).

3. The air-conditioning connecting pipe according to claim 2, wherein: The first connecting mechanism (21) includes a first connecting pipe fitting (211), the second connecting mechanism (22) includes a second connecting pipe fitting (221). The diameter of the first connecting pipe fitting (211) is R1, the diameter of the second connecting pipe fitting (221) is R2, and R1 < R2.

4. The air-conditioning connecting pipe according to claim 2, characterized in that: The fourth connecting mechanism (31) includes a fourth connecting pipe fitting (311), the fifth connecting mechanism (32) includes a fifth connecting pipe fitting (321). The diameter of the fourth connecting pipe fitting (311) is R3, the diameter of the fifth connecting pipe fitting (321) is R4, and R3 < R4.

5. The air-conditioning connecting pipe according to claim 2, characterized in that: A first connecting protrusion (212) is provided on the side of the first connecting mechanism (21) close to the evaporator, a second connecting protrusion (222) is provided on the side of the second connecting mechanism (22) close to the expansion valve, a fourth connecting circular groove (312) is provided on the side of the fourth connecting mechanism (31) close to the compressor, and a fifth connecting circular groove (322) is provided on the side of the fifth connecting mechanism (32) close to the condenser.

6. The air-conditioning connecting pipe according to claim 1, wherein: The connecting pipe (4) includes a pipe body (41), a first heat-insulating sleeve (42) sleeved on the outer side wall of the pipe body (41), a seventh connecting mechanism (43) for connecting to the first three-way assembly (2), and an eighth connecting mechanism (44) for connecting to the second three-way assembly (3).

7. The air-conditioning connecting pipe according to claim 6, characterized in that: The seventh connecting mechanism (43) and the eighth connecting mechanism (44) are symmetrically arranged. The seventh connecting mechanism (43) includes a plug member (431) connected to the pipe body (41), a nut (432) located between the plug member (431) and the pipe body (41), and a second heat-insulating sleeve (433) sleeved on the outer side of the plug member (431).

8. The air-conditioning connecting pipe according to claim 2, wherein: The first three-way assembly (2) includes a mounting base (5) for respectively connecting the first connecting mechanism (21), the second connecting mechanism (22), and the third connecting mechanism (23).

9. The air conditioner connecting pipe according to claim 8, wherein: The installation base (5) includes a first installation port (51) threadedly connected to the first connection mechanism (21), a second installation port (52) threadedly connected to the second connection mechanism (22), and a third installation port (53) threadedly connected to the third connection mechanism (23).

10. The air-conditioning connecting pipe according to claim 6, wherein: The pipe body (41) is made of copper material.

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