A type of outdoor unit piping for split-type air conditioners

Abstract

This utility model relates to the field of air conditioner outdoor unit piping technology, and discloses a split-type air conditioner outdoor unit piping system. Filters are installed on both the connecting pipes and the second condenser connector. A gas pipe shut-off valve is installed at one end of the shut-off valve connector. A gas-liquid separator is installed on the compressor, and the gas-liquid separator is connected to the compressor via a pipe. The suction pipe is connected to the top of the gas-liquid separator. This utility model reduces pipe vibration by designing the shape of all connecting pipes in the four-way reversing valve piping assembly and the electronic expansion valve piping assembly. The shape design of all pipes conforms to the laws of mechanical rotation, preventing pipe breakage during compressor operation. Through three-dimensional spatial design of the four-way reversing valve piping assembly and the electronic expansion valve piping assembly, the vibration of related pipes or components in the four-way reversing valve piping assembly and the electronic expansion valve piping assembly is minimal during the operation of the split-type air conditioner outdoor unit compressor, resulting in stable pipe operating temperatures and no breakage or tearing.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner outdoor unit piping technology, specifically to an outdoor unit piping system for a split-type air conditioner. Background Technology

[0002] The outdoor unit of an air conditioner is the core of the heat exchange system, responsible for transferring indoor heat to the outdoors through refrigerant circulation to achieve cooling / heating effects. Its working principle includes processes such as compressor compressing the refrigerant, condenser dissipating heat, and fan accelerating airflow.

[0003] The outdoor unit of an air conditioner is made up of several copper pipes and refrigeration components that are brazed and sealed. The pipes are filled with refrigerant and refrigeration oil. The compressor drives the refrigerant to circulate in the pipes. The operation of the compressor is mainly due to the motor driving the mechanical parts to rotate and compress the refrigerant. During this process, the compressor connecting pipes will inevitably vibrate. If the vibration is too large, it can easily cause the pipes to break or tear. Therefore, a new type of pipe system for the outdoor unit of a split air conditioner is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a split-type air conditioner outdoor unit piping to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an outdoor unit piping system for a split-type air conditioner, comprising a chassis, a compressor mounted on the chassis, an exhaust pipe mounted on the compressor, a muffler mounted on the exhaust pipe, a four-way reversing valve mounted at one end of the exhaust pipe, a four-way reversing valve coil mounted on the four-way reversing valve, a first condenser connector, a shut-off valve connector, and a suction pipe respectively mounted on the bottom port of the four-way reversing valve, a condenser mounted on the chassis at the rear of the compressor, and an air intake pipe mounted at one end of the first condenser connector. The condenser is equipped with a second condenser connector, which is fitted with an electronic expansion valve body. An electronic expansion valve coil is mounted on the top of the electronic expansion valve body, and a liquid shut-off valve is connected to the bottom of the electronic expansion valve body via a connecting pipe. Filters are installed on both the connecting pipe and the second condenser connector. A gas shut-off valve is installed at one end of the shut-off valve connector. A gas-liquid separator is installed on the compressor, which is connected to the compressor via a pipe. The suction pipe is connected to the top of the gas-liquid separator.

[0006] Preferably, temperature sensor mounts are installed on both the exhaust pipe and the intake pipe.

[0007] Preferably, the angle between the exhaust pipe and the four-way reversing valve is 121 degrees, the angle between the four-way reversing valves is 76 degrees, the angle between the shut-off valve connector and the four-way reversing valve is 57 degrees, and the angle between the first condenser connector and the four-way reversing valve is 27 degrees.

[0008] Preferably, the vertical height between the intake end of the exhaust pipe and the shut-off valve connector is 87.5 mm, the horizontal distance between the centerline of the exhaust pipe and the centerline of the shut-off valve connector is 51 mm, and the vertical height between the intake pipe and the shut-off valve connector is 108 mm.

[0009] Preferably, the exhaust pipe includes pipes A, B, C, D, E, F, and G. Pipes A and B are connected by a first bend, and pipes B and C are connected by a first bend. The lengths of pipes A, B, and C are 41 mm, 42 mm, and 42 mm, respectively. Pipes D and E are connected by a first bend, and pipes E, F, and G are connected by a first bend. The lengths of pipes D, E, F, and G are 44 mm, 97.5 mm, 59 mm, and 32 mm, respectively. The outer diameter of pipes A, B, C, D, E, F, and G is 7.94 mm, and the wall thickness is 0.6 mm. The angle between pipes A and B is 114 degrees, the angle between pipes B and C is 66 degrees, and the angle between pipes E and F is 127 degrees.

[0010] Preferably, the first condenser connector includes an H pipe and an I pipe, which are connected by a first bend. The lengths of the H pipe and the I pipe are 41.9 mm and 25 mm, respectively. The outer diameter of the connection end of the H pipe and the I pipe to the first bend is 12.7 mm, and the wall thickness is 0.7 mm.

[0011] Preferably, the aforementioned shut-off valve connector includes pipe J, pipe K, and pipe L. Pipe J is connected to pipe K via a first bend, pipe K is connected to pipe L via a first bend, pipe L has lengths of 31mm, 50mm, and 31mm respectively, and pipe J, pipe K, and pipe L have an outer diameter of 12.7mm and a wall thickness of 0.7mm.

[0012] Preferably, the aforementioned suction pipe includes an M pipe, an N pipe, an O pipe, a P pipe, a Q pipe, and an R pipe. The M pipe and the N pipe are connected by a pipe, the N pipe and the O pipe are connected by a first bend, the O pipe and the P pipe are connected by a first bend, the P pipe and the Q pipe are connected by a first bend, and the Q pipe and the R pipe are connected by a first bend. The lengths of the M pipe, N pipe, O pipe, P pipe, Q pipe, and R pipe are 232 mm, 55.1 mm, 72.1 mm, 275 mm, 30 mm, and 35 mm, respectively. The outer diameter of the M pipe, N pipe, O pipe, P pipe, Q pipe, and R pipe is 12.7 mm, and the wall thickness is 0.7 mm. The included angle between the N pipe and the O pipe is 125 degrees.

[0013] Preferably, the second condenser connector includes an S-pipe, a T-pipe, and a U-pipe. The S-pipe and the T-pipe are connected by a second bend, and the T-pipe and the U-pipe are connected by a second bend. The lengths of the S-pipe, T-pipe, and U-pipe are 35 mm, 31.1 mm, and 35 mm, respectively. The outer diameter of the S-pipe, T-pipe, and U-pipe is 7.94 mm, and the wall thickness is 0.6 mm.

[0014] Compared with the prior art, the present invention has the following technical effects: By designing the shape of all connecting pipes in the four-way reversing valve pipeline assembly and the electronic expansion valve pipeline assembly, the present invention reduces pipe vibration; the shape design of all pipelines conforms to the laws of mechanical rotation, preventing the pipelines from being broken by vibration when the compressor is running; through the three-dimensional spatial design of the pipelines in the four-way reversing valve pipeline assembly and the electronic expansion valve pipeline assembly, when the compressor of the outdoor unit of the split air conditioner is running, the vibration of the relevant pipelines or components of the four-way reversing valve pipeline assembly and the electronic expansion valve pipeline assembly is small, the pipeline operating temperature is high, and there is no phenomenon of breakage or tearing. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the chassis structure of this utility model;

[0018] Figure 3This is a schematic diagram of the condenser structure of this utility model;

[0019] Figure 4 This is a partial structural diagram of the exhaust pipe of this utility model;

[0020] Figure 5 This is a schematic diagram of the exhaust pipe structure of this utility model;

[0021] Figure 6 This is a bottom view schematic diagram of the suction tube structure of this utility model;

[0022] Figure 7 This is a schematic diagram of the four-way reversing valve structure of this utility model;

[0023] Figure 8 This is a schematic diagram of the suction tube structure of this utility model;

[0024] Figure 9 This is a schematic diagram of the first condenser pipe connection structure of this utility model;

[0025] Figure 10 This is a schematic diagram of the shut-off valve connecting pipe structure of this utility model;

[0026] Figure 11 This is a schematic diagram of the suction tube structure of this utility model;

[0027] Figure 12 This is a top view schematic diagram of the suction tube structure of this utility model;

[0028] Figure 13 This is a schematic diagram of the second condenser connecting pipe structure of this utility model;

[0029] Figure 14 This is a top view of the second condenser nozzle of this utility model;

[0030] Figure 15 This is a schematic diagram of the electronic expansion valve coil structure of this utility model;

[0031] Figure 16 This is a top view of the electronic expansion valve body of this utility model.

[0032] Explanation of reference numerals in the attached diagram: 1. Compressor; 2. Exhaust pipe; 3. Silencer; 4. Four-way reversing valve; 5. Four-way reversing valve coil; 6. First condenser connection pipe; 7. Shut-off valve connection pipe; 8. Suction pipe; 9. Electronic expansion valve body; 10. Electronic expansion valve coil; 11. Filter; 12. Second condenser connection pipe; 13. Liquid line shut-off valve; 14. Gas line shut-off valve; 15. Chassis; 16. Condenser; 17. Gas-liquid separator; 18. Temperature sensor mount. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0035] Example

[0036] Please see Figure 1-16This utility model provides a technical solution: a split-type air conditioner outdoor unit piping system, including a chassis 15 made of galvanized sheet metal, stamped and formed, used to fix and install a compressor 1 and a condenser 16; the compressor 1 is installed on the chassis 15, an exhaust pipe 2 is installed on the compressor 1, a muffler 3 is installed on the exhaust pipe 2, and a four-way reversing valve 4 is installed at one end of the exhaust pipe 2, the four-way reversing valve 4 is used to switch the refrigerant flow path during cooling or heating; a four-way reversing valve coil 5 is installed on the four-way reversing valve 4, the four-way reversing valve coil 5 does not work when the air conditioner outdoor unit is cooling, and is energized when the air conditioner outdoor unit is heating to drive the four-way reversing valve 4 to switch the refrigerant flow path of the cooling system; a first condenser connector 6, a shut-off valve connector 7, and a suction pipe 8 are respectively installed at the bottom port of the four-way reversing valve 4; the condenser 16 is installed on the chassis 15 behind the compressor 1, one end of the first condenser connector 6 is installed on the condenser 16, a second condenser connector 12 is installed on the condenser 16, and an electronic... The expansion valve body 9 is an electronic expansion valve body that serves as a throttling mechanism for the outdoor unit's refrigeration system, operating in 500 pulse steps. An electronic expansion valve coil 10 is installed on the top of the electronic expansion valve body 9, driving the valve body 9 to change its opening from 0 to 500 steps, thus throttling and reducing pressure in the air conditioning refrigeration system. A liquid pipe shut-off valve 13, made of brass, is connected to the bottom of the electronic expansion valve body 9 via a connecting pipe. Both the connecting pipe and the second condenser pipe 12 are equipped with filters 11, which filter impurities in the piping system to prevent blockage of the electronic expansion valve body 9. A gas pipe shut-off valve 14, also made of brass, is installed at one end of the shut-off valve pipe 7, connecting the outdoor unit and indoor unit. A gas-liquid separator 17 is installed on the compressor 1, connected via a pipe, with a suction pipe 8 connected to the top of the gas-liquid separator 17.

[0037] The exhaust pipe 2, muffler 3, four-way reversing valve 4, first condenser connection pipe 6, shut-off valve connection pipe 7, and intake pipe 8 are brazed together to form a four-way valve assembly for easy production and assembly. When welding the four-way valve assembly, the four-way reversing valve 4 should be sprayed with water or placed in a water tank to be connected to other copper pipes for brazing to prevent the seals in the four-way reversing valve 4 from being damaged by high temperature.

[0038] The electronic expansion valve body 9, two filters 11, and the second condenser pipe 12 are brazed together to form an electronic expansion valve assembly, which facilitates production and assembly. When welding the electronic expansion valve assembly, the electronic expansion valve body 9 should be sprayed with water or placed in a water tank to be brazed with other copper pipes to prevent the seals in the electronic expansion valve body from being damaged by high temperature.

[0039] The special design of the pipe bend radius, bend angle, and copper pipe wall thickness of the exhaust pipe 2, first condenser connection pipe 6, shut-off valve connection pipe 7, suction pipe 8, and second condenser connection pipe 12 reduces pipe vibration. In addition, the arrangement of the welding space between the electronic expansion valve body 9, the two filters 11, the four-way reversing valve 4, the compressor 1, and the pipe ensures reduced pipe vibration.

[0040] Temperature sensor mounts 18 are installed on both the exhaust pipe 2 and the intake pipe 8. The temperature sensor mount 18 on the exhaust pipe 2 is used to fix the exhaust temperature sensor. The variable frequency compressor controls the compressor speed according to the exhaust temperature. If the exhaust temperature is too high, the variable frequency compressor will reduce the speed to reduce pipeline vibration. The temperature sensor mount 18 on the intake pipe 8 is used to fix the intake temperature sensor. The variable frequency compressor controls the compressor speed according to the intake temperature. If the intake temperature is too low, there is a risk of liquid return. The variable frequency compressor will reduce the speed to reduce pipeline vibration.

[0041] By redesigning the shape of all connecting pipes in the four-way reversing valve piping assembly and the electronic expansion valve piping assembly, pipe vibration is reduced. The shape design of all pipes conforms to the laws of mechanical rotation, preventing pipe breakage during compressor operation. Through three-dimensional spatial design of the piping in the four-way reversing valve piping assembly and the electronic expansion valve piping assembly, vibration of related pipes or components is minimal when the compressor 1 of the outdoor unit of the split air conditioner is running. Pipe operating temperature is reliable, and there are no breakage or tearing phenomena. The specific piping design is as follows:

[0042] The angle between exhaust pipe 2 and four-way reversing valve 4 is 121 degrees, the angle between four-way reversing valve 4 and four-way reversing valve 4 is 76 degrees, the angle between shut-off valve pipe 7 and four-way reversing valve 4 is 57 degrees, and the angle between first condenser pipe 6 and four-way reversing valve 4 is 27 degrees.

[0043] The vertical height between the intake end of the exhaust pipe 2 and the shut-off valve connector 7 is 87.5 mm, the horizontal distance between the centerline of the exhaust pipe 2 and the centerline of the shut-off valve connector 7 is 51 mm, and the vertical height between the intake pipe 8 and the shut-off valve connector 7 is 108 mm.

[0044] Exhaust pipe 2 includes pipes A, B, C, D, E, F, and G. Pipes A and B are connected by a first bend, and pipes B and C are connected by a first bend. The lengths of pipes A, B, and C are 41 mm, 42 mm, and 42 mm, respectively. Pipes D, E, F, and G are connected by a first bend, respectively. The lengths of pipes D, E, F, and G are 44 mm, 97.5 mm, 59 mm, and 32 mm, respectively. The outer diameter of pipes A, B, C, D, E, F, and G is 7.94 mm, and the wall thickness is 0.6 mm. The angle between pipes A and B is 114 degrees, the angle between pipes B and C is 66 degrees, and the angle between pipes E and F is 127 degrees.

[0045] The first condenser connection pipe 6 includes pipe H and pipe I, which are connected by a first bend. The lengths of pipe H and pipe I are 41.9 mm and 25 mm, respectively. The outer diameter of the connection end of pipe H and pipe I to the first bend is 12.7 mm, and the wall thickness is 0.7 mm.

[0046] The shut-off valve connector 7 includes pipes J, K, and L. Pipes J and K are connected by a first bend, and pipes K and L are connected by a first bend. The lengths of pipes J, K, and L are 31mm, 50mm, and 31mm, respectively. The outer diameter of pipes J, K, and L is 12.7mm, and the wall thickness is 0.7mm.

[0047] The suction pipe 8 includes pipes M, N, O, P, Q, and R. Pipes M and N are connected by pipes, pipes N and O are connected by a first bend, pipes O and P are connected by a first bend, pipes P and Q are connected by a first bend, and pipes Q and R are connected by a first bend. The lengths of pipes M, N, O, P, Q, and R are 232 mm, 55.1 mm, 72.1 mm, 275 mm, 30 mm, and 35 mm, respectively. The outer diameter of pipes M, N, O, P, Q, and R is 12.7 mm, and the wall thickness is 0.7 mm. The angle between pipes N and O is 125 degrees.

[0048] The second condenser connector 12 includes an S pipe, a T pipe, and a U pipe. The S pipe and the T pipe are connected by a second bend, and the T pipe and the U pipe are connected by a second bend. The lengths of the S pipe, the T pipe, and the U pipe are 35 mm, 31.1 mm, and 35 mm, respectively. The outer diameter of the S pipe, the T pipe, and the U pipe is 7.94 mm, and the wall thickness is 0.6 mm.

[0049] The bending radius of the first bend is 25mm, and the bending radius of the second bend is 15mm.

[0050] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A split-type air conditioner outdoor unit piping system, comprising a chassis (15), characterized in that: A compressor (1) is mounted on the chassis (15). An exhaust pipe (2) is mounted on the compressor (1). A muffler (3) is mounted on the exhaust pipe (2). A four-way reversing valve (4) is mounted at one end of the exhaust pipe (2). A four-way reversing valve coil (5) is mounted on the four-way reversing valve (4). A first condenser connector (6), a shut-off valve connector (7), and a suction pipe (8) are respectively mounted on the bottom port of the four-way reversing valve (4). A condenser (16) is mounted on the chassis (15) behind the compressor (1). One end of the first condenser connector (6) is mounted on the condenser (16). A second condenser connector is mounted on the condenser (16). The second condenser connector (12) is equipped with an electronic expansion valve body (9), an electronic expansion valve coil (10) is installed on the top of the electronic expansion valve body (9), and a liquid pipe shut-off valve (13) is connected to the bottom of the electronic expansion valve body (9) through a connecting pipe. A filter (11) is installed on both the connecting pipe and the second condenser connector (12). A gas pipe shut-off valve (14) is installed at one end of the shut-off valve connector (7). A gas-liquid separator (17) is installed on the compressor (1). The gas-liquid separator (17) is connected to the compressor (1) through a pipe. The suction pipe (8) is connected to the top of the gas-liquid separator (17).

2. The outdoor unit piping of a split-type air conditioner according to claim 1, characterized in that: Temperature sensor mounts (18) are installed on both the exhaust pipe (2) and the intake pipe (8).

3. The outdoor unit piping of a split-type air conditioner according to claim 1, characterized in that: The angle between the exhaust pipe (2) and the four-way reversing valve (4) is 121 degrees, the angle between the four-way reversing valve (4) and the four-way reversing valve (4) is 76 degrees, the angle between the shut-off valve connector (7) and the four-way reversing valve (4) is 57 degrees, and the angle between the first condenser connector (6) and the four-way reversing valve (4) is 27 degrees.

4. The outdoor unit piping of a split-type air conditioner according to claim 1, characterized in that: The vertical height between the air intake end of the exhaust pipe (2) and the shut-off valve connector (7) is 87.5 mm, the horizontal distance between the center line of the exhaust pipe (2) and the center line of the shut-off valve connector (7) is 51 mm, and the vertical height between the air intake pipe (8) and the shut-off valve connector (7) is 108 mm.

5. The outdoor unit piping of a split-type air conditioner according to claim 1, characterized in that: The exhaust pipe (2) includes pipes A, B, C, D, E, F, and G. Pipes A and B are connected by a first bend, and pipes B and C are connected by a first bend. The lengths of pipes A, B, and C are 41 mm, 42 mm, and 42 mm, respectively. Pipes D and E are connected by a first bend, and pipes E, F, and G are connected by a first bend. The lengths of pipes D, E, F, and G are 44 mm, 97.5 mm, 59 mm, and 32 mm, respectively. The outer diameter of pipes A, B, C, D, E, F, and G is 7.94 mm, and the wall thickness is 0.6 mm. The angle between pipes A and B is 114 degrees, the angle between pipes B and C is 66 degrees, and the angle between pipes E and F is 127 degrees.

6. The outdoor unit piping of a split-type air conditioner according to claim 1, characterized in that: The first condenser connector (6) includes an H pipe and an I pipe, which are connected by a first bend. The lengths of the H pipe and the I pipe are 41.9 mm and 25 mm, respectively. The outer diameter of the connection end of the H pipe and the I pipe to the first bend is 12.7 mm, and the wall thickness is 0.7 mm.

7. The outdoor unit piping of a split-type air conditioner according to claim 1, characterized in that: The shut-off valve connector (7) includes pipe J, pipe K and pipe L. Pipe J is connected to pipe K by a first bend. Pipe J and pipe K are connected by a first bend. Pipe K and pipe L are connected by a first bend. The lengths of pipe J, pipe K and pipe L are 31mm, 50mm and 31mm respectively. The outer diameter of pipe J, pipe K and pipe L is 12.7mm and the wall thickness is 0.7mm.

8. The outdoor unit piping of a split-type air conditioner according to claim 1, characterized in that: The intake pipe (8) includes pipes M, N, O, P, Q, and R. Pipes M and N are connected by pipes, pipe N and O are connected by a first bend, pipe O and P are connected by a first bend, pipe P and Q are connected by a first bend, and pipe Q and R are connected by a first bend. The lengths of pipes M, N, O, P, Q, and R are 232 mm, 55.1 mm, 72.1 mm, 275 mm, 30 mm, and 35 mm, respectively. The outer diameter of pipes M, N, O, P, Q, and R is 12.7 mm, and the wall thickness is 0.7 mm. The angle between pipes N and O is 125 degrees.

9. The outdoor unit piping of a split-type air conditioner according to claim 1, characterized in that: The second condenser connector (12) includes an S pipe, a T pipe, and a U pipe. The S pipe and the T pipe are connected by a second bend, and the T pipe and the U pipe are connected by a second bend. The lengths of the S pipe, T pipe, and U pipe are 35 mm, 31.1 mm, and 35 mm, respectively. The outer diameter of the S pipe, T pipe, and U pipe is 7.94 mm, and the wall thickness is 0.6 mm.

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