Heat exchange self-adaptive flow dividing structure of air conditioner outdoor unit

Abstract

The utility model belongs to the field of air conditioner heat exchangers, particularly relates to a heat exchange self-adaptive shunting structure of an air conditioner outdoor unit, and aims to solve the problems that although a liquid refrigerant can be conveyed through a pipeline in the prior art, the pipeline is inconvenient to connect with an external device pipeline during installation, and the heat exchange self-adaptive shunting structure of the air conditioner outdoor unit comprises a heat exchanger, a second pipeline, a third pipeline, a fourth pipeline and a fifth pipeline are arranged in the heat exchanger, a distribution pipe is arranged on one side of the heat exchanger, one end of the distribution pipe is of a closed structure, three conveying pipes used for conveying refrigerants are fixedly arranged on one side of the distribution pipe, one end of each conveying pipe penetrates through one side of the heat exchanger, and the other end of each conveying pipe is of a closed structure. Connection and installation with an external device pipeline are facilitated through the installation mechanism, dual sealing can be formed when the pipeline of the external device and the installation head are connected through the second sealing ring and the first sealing ring, and leakage is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of air-conditioning heat exchangers, in particular to a heat exchange adaptive shunt structure of an air-conditioning outdoor unit. Background Art

[0002] With the improvement of people's living standards, air conditioning has become an indispensable configuration in life. Existing air conditioning products are basically used for both cooling and heating. When cooling and heating, the indoor unit and outdoor unit have different functions. When cooling, the indoor unit is the evaporator and the outdoor unit is the condenser; when heating, the indoor unit is the condenser and the outdoor unit is the evaporator. The same heat exchanger can be used as both an evaporator and a condenser.

[0003] After searching, the patent with announcement number CN220169648U discloses an adaptive shunt structure of heat exchanger for air conditioner outdoor unit, including a distributor, a first one-way valve, a capillary tube, and a second one-way valve. The heat exchange flow path of the heat exchanger is evenly distributed into N paths, and N is 2-6. The distributor is connected to one end of the N heat exchange flow paths of the heat exchanger through N pipelines, and the second one-way valve is connected to the inlet pipeline of the distributor. The other end of the N heat exchange flow paths of the heat exchanger is connected to a branch respectively. The capillary tube is connected to the one-way valve through a pipeline, and the capillary tube is connected between a branch and the second one-way valve. The first one-way valve is connected between the two branches. By optimizing the shunt structure of the heat exchanger, the heat exchange efficiency is greatly improved, especially the heating effect is improved, while the flow resistance of the refrigerant in the copper tube is reduced, and the working efficiency of the whole machine is improved.

[0004] The technical solution has the following problems:

[0005] Although liquid refrigerant can be transported through pipelines, it is inconvenient to connect the pipelines to external device pipes during installation. Utility Model Content

[0006] The purpose of the utility model is to solve the problem in the prior art that although liquid refrigerant can be transported through pipelines, the pipelines are not easy to connect with external device pipelines during installation, which is relatively inconvenient, and to propose a heat exchange adaptive shunt structure for the outdoor unit of an air conditioner.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A heat exchange adaptive shunt structure for an air conditioner outdoor unit comprises a heat exchanger, wherein a second pipe, a third pipe, a fourth pipe and a fifth pipe are arranged in the heat exchanger, a distribution pipe is arranged on one side of the heat exchanger, one end of the distribution pipe is a closed structure, three delivery pipes for delivering refrigerant are fixedly arranged on one side of the distribution pipe, one end of the three delivery pipes all penetrates one side of the heat exchanger, one end of the three delivery pipes is fixedly connected to one end of the third pipe, the fourth pipe and the fifth pipe respectively, a capillary tube is fixedly arranged on one side of the distribution pipe, one end of the capillary tube penetrates one side of the heat exchanger and is fixedly connected to one end of the second pipe, a first pipe is arranged on one side of the heat exchanger, one end of the first pipe is a closed structure, four sixth pipes are fixedly arranged on one side of the first pipe, one end of the four sixth pipes all penetrates one side of the heat exchanger, one end of the four sixth pipes is fixedly connected to the other end of the second pipe, the third pipe, the fourth pipe and the fifth pipe respectively, a one-way valve is arranged on the distribution pipe, and a solenoid valve is arranged on the first pipe;

[0009] The installation mechanism is arranged on the first pipeline and the distribution pipe to facilitate the connection and installation of external device pipelines.

[0010] In a possible design, the installation mechanism includes two installation heads for facilitating the installation of external device pipelines and two limiting rings for resisting and limiting the installation heads. The two limiting rings are fixedly mounted on the first pipeline and the distribution pipe respectively, and the two installation heads are movably mounted on the first pipeline and the distribution pipe respectively. The limiting rings are located inside the installation heads, and the inner wall of the installation heads is provided with internal threads.

[0011] In a possible design, a first sealing ring for improving the sealing performance between the mounting head and the limiting ring is fixedly provided on one side of the limiting ring.

[0012] In a possible design, the mounting head is provided with an anti-slip groove for increasing the friction of a person's hand.

[0013] In a possible design, a mounting plate for facilitating installation is fixedly provided on one side of the heat exchanger, and a plurality of mounting holes are provided on the mounting plate.

[0014] In a possible design, a second sealing ring is fixedly provided on one side of the limiting ring for improving the sealing performance between the limiting ring and the external device pipeline.

[0015] In a possible design, the mounting holes of the mounting plate are provided with bolts for easy fixing.

[0016] In the present application, when in use, first install the heat exchanger in a suitable position through the mounting plate and bolts, then set the external thread of the pipe of the external device, place the pipe of the external device in the position of the distribution pipe and the first pipe, insert the pipe of the external device into the mounting head, align the threads, and then rotate the mounting head to make the mounting head and the external device pipe threadedly connected, so as to facilitate the connection and installation with the external device pipe. During the installation process, the first sealing ring and the second sealing ring will be squeezed and deformed, thereby improving the sealing between the mounting head and the limit ring and the device pipe to avoid leakage. After everything is installed, it can be used.

[0017] When the heat exchanger is used as a heat pump evaporator, the liquid refrigerant enters the second pipe in the heat exchanger from the distribution pipe through the capillary tube, and the liquid refrigerant in the distribution pipe enters the three delivery pipes through the one-way valve and enters the third pipe, fourth pipe and fifth pipe in the heat exchanger for evaporation, and then flows out from the first pipe through the four sixth pipes, where the one-way valve is only for outflow and not inflow, and the solenoid valve is opened. (In this state, the refrigerant inlet when the heat exchanger is used as an evaporator, and the refrigerant outlet when the heat exchanger is used as a condenser).

[0018] When the heat exchanger is used as a heat pump condenser, high-temperature and high-pressure gaseous refrigerant enters from the first pipe (the solenoid valve is closed at the same time). Since the solenoid valve closes the first pipe, it cannot pass through the second pipe and can only pass through the third pipe, the fourth pipe, and the fifth pipe to enter the heat exchanger for condensation. The three delivery pipes then merge and flow into the distribution pipe. Due to the one-way blocking of the one-way valve, the refrigerant enters the heat exchanger through the delivery pipe after converging to continue cooling. Finally, it is transported to the capillary tube through the third pipe, the sixth pipe, and the second pipe, and then flows out of the distribution pipe after throttling through the capillary tube (in this state, the refrigerant outlet when the heat exchanger is used as an evaporator and the refrigerant inlet when the heat exchanger is used as a condenser).

[0019] The beneficial effects of the present invention are:

[0020] In the utility model, the heat exchange adaptive shunt structure of the air conditioner outdoor unit is used to insert the pipe of the external device into the installation head through the installation mechanism, align the threads, and then rotate the installation head to make the installation head and the external device pipe threadedly connected, so as to facilitate the connection and installation with the external device pipe;

[0021] In the utility model, the installation mechanism facilitates the connection and installation with the pipeline of the external device, and the second sealing ring and the first sealing ring can form a double seal when the pipeline of the external device is connected to the installation head to avoid leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the main structure of a heat exchange adaptive shunt structure for an air conditioner outdoor unit proposed by the utility model;

[0023] Figure 2 This is a schematic diagram of the internal structure of a heat exchanger of an air conditioner outdoor unit with a heat exchanger adaptive shunt structure proposed by the utility model;

[0024] Figure 3 This is a side view structural diagram of a heat exchange adaptive shunt structure for an air conditioner outdoor unit proposed by the utility model;

[0025] Figure 4 This is a schematic cross-sectional structure diagram of a mounting head of a heat exchange adaptive shunt structure for an air conditioner outdoor unit proposed by the utility model.

[0026] In the figure: 1. mounting head; 2. distribution pipe; 3. capillary tube; 4. one-way valve; 5. solenoid valve; 6. first pipeline; 7. heat exchanger; 8. mounting plate; 9. bolt; 10. second pipeline; 11. third pipeline; 12. fourth pipeline; 13. fifth pipeline; 14. sixth pipeline; 15. delivery pipe; 16. limit ring; 17. first sealing ring. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0028] Embodiment 1

[0029] Reference Figure 1-4 , an air conditioner outdoor unit heat exchange adaptive shunt structure, which is used in the field of air conditioner heat exchangers, includes: a heat exchanger 7, in which a second pipe 10, a third pipe 11, a fourth pipe 12 and a fifth pipe 13 are arranged, and these pipes form a complex flow channel structure inside the heat exchanger 7 to optimize the flow and heat exchange effect of the refrigerant.

[0030] On one side of the heat exchanger 7, we set a distribution pipe 2, one end of which is a closed structure to ensure the unidirectional flow of the refrigerant in the pipeline. Three delivery pipes 15 are fixedly set on one side of the distribution pipe 2. One end of these three delivery pipes 15 passes through one side of the heat exchanger 7 and is fixedly connected to one end of the third pipe 11, the fourth pipe 12 and the fifth pipe 13 respectively. In addition, a capillary tube 3 is fixedly set on the other side of the distribution pipe 2, one end of which also passes through the heat exchanger 7 and is connected to one end of the second pipe 10.

[0031] On the other side of the heat exchanger 7, a first pipe 6 is provided, one end of which is also a closed structure. Four sixth pipes 14 are fixedly provided on one side of the first pipe 6. One ends of the four sixth pipes 14 all pass through one side of the heat exchanger 7 and are fixedly connected to the other ends of the second pipe 10, the third pipe 11, the fourth pipe 12 and the fifth pipe 13, respectively. Such a design allows the refrigerant to circulate multiple times inside the heat exchanger to improve the heat exchange efficiency.

[0032] In order to realize the one-way flow of the refrigerant, a one-way valve 4 is set on the distribution pipe 2, and a solenoid valve 5 is set on the first pipe 6. These two valves can control the flow direction and flow rate of the refrigerant as needed to realize the function of adaptive diversion.

[0033] In order to facilitate the connection and installation with the pipelines of external devices, we set up an installation mechanism on the first pipeline 6 and the distribution pipe 2. The installation mechanism includes two installation heads 1 and two limit rings 16. The two limit rings 16 are fixedly mounted on the first pipeline 6 and the distribution pipe 2 respectively, and the two installation heads 1 are movably mounted on the first pipeline 6 and the distribution pipe 2 respectively. The limit rings 16 are located in the installation head 1 and are used to resist and limit the installation head 1. The inner wall of the installation head 1 is provided with an internal thread, which can be threadedly connected to the pipeline of the external device.

[0034] Embodiment 2

[0035] refer to Figure 1-4 , improved on the basis of the first embodiment:

[0036] In order to improve the sealing between the mounting head 1 and the limiting ring 16, a first sealing ring 17 is fixedly arranged on one side of the limiting ring 16. In this way, when the mounting head 1 is sleeved on the pipe, the first sealing ring 17 will fit tightly between the pipe and the mounting head 1 to prevent refrigerant leakage.

[0037] In order to facilitate the operation of personnel, we have opened an anti-skid groove on the installation head 1 to increase the friction of the personnel's hands and prevent slipping during the installation process.

[0038] In order to facilitate the installation of the entire heat exchanger 7, a mounting plate 8 is fixed on one side thereof, and a plurality of mounting holes are opened on the mounting plate 8. These mounting holes can be aligned with the bolt holes on the external bracket or the wall, and then fixed by bolts 9.

[0039] In addition, in order to further improve the sealing between the limiting ring 16 and the external device pipeline, we also fixedly set a second sealing ring on one side of the limiting ring 16. In this way, when the pipeline of the external device is connected to the mounting head 1, the second sealing ring will fit tightly between the pipeline and the limiting ring 16, forming double sealing protection.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An air conditioner outdoor unit heat exchange adaptive flow splitting structure, comprising a heat exchanger (7), characterized in that: The heat exchanger (7) is provided with a second pipe (10), a third pipe (11), a fourth pipe (12) and a fifth pipe (13). A distribution pipe (2) is provided on one side of the heat exchanger (7). One end of the distribution pipe (2) is a closed structure. Three delivery pipes (15) for delivering refrigerant are fixedly provided on one side of the distribution pipe (2). One end of the three delivery pipes (15) passes through one side of the heat exchanger (7). One end of the three delivery pipes (15) is fixedly connected to one end of the third pipe (11), the fourth pipe (12) and the fifth pipe (13). A capillary tube (3) is fixedly provided on one side of the distribution pipe (2). The capillary tube (3) One end of the first pipe (10) passes through one side of the heat exchanger (7) and is fixedly connected to one end of the second pipe (10); one side of the heat exchanger (7) is provided with a first pipe (6); one end of the first pipe (6) is a closed structure; one side of the first pipe (6) is fixedly provided with four sixth pipes (14); one end of each of the four sixth pipes (14) passes through one side of the heat exchanger (7); one end of each of the four sixth pipes (14) is fixedly connected to the other end of the second pipe (10), the third pipe (11), the fourth pipe (12) and the fifth pipe (13); a one-way valve (4) is provided on the distribution pipe (2); and a solenoid valve (5) is provided on the first pipe (6); The installation mechanism is arranged on the first pipeline (6) and the distribution pipe (2) to facilitate the connection and installation of external device pipelines.

2. The heat exchange adaptive shunt structure of the air conditioner outdoor unit according to claim 1, characterized in that: The installation mechanism comprises two installation heads (1) for facilitating the installation of external device pipelines and two limiting rings (16) for resisting and limiting the installation heads (1); the two limiting rings (16) are respectively fixedly sleeved on the first pipeline (6) and the distribution pipe (2); the two installation heads (1) are respectively movably sleeved on the first pipeline (6) and the distribution pipe (2); the limiting rings (16) are located in the installation heads (1); and the inner wall of the installation heads (1) is provided with internal threads.

3. The heat exchange adaptive shunt structure of the air conditioner outdoor unit according to claim 2, characterized in that: A first sealing ring (17) is fixedly provided on one side of the limiting ring (16) for improving the sealing performance between the mounting head (1) and the limiting ring (16).

4. The heat exchange adaptive shunt structure of the air conditioner outdoor unit according to claim 2, characterized in that: The mounting head (1) is provided with an anti-slip groove for increasing the friction force of a person's hand.

5. The heat exchange adaptive flow splitting structure of the air conditioner outdoor unit according to claim 1, characterized in that: A mounting plate (8) is fixedly provided on one side of the heat exchanger (7) for facilitating installation, and a plurality of mounting holes are provided on the mounting plate (8).

6. The heat exchange adaptive shunt structure of the air conditioner outdoor unit according to claim 2, characterized in that: A second sealing ring for improving the sealing performance between the limiting ring (16) and an external device pipeline is fixedly arranged on one side of the limiting ring (16).

7. The heat exchange adaptive flow splitting structure of the air conditioner outdoor unit according to claim 5, characterized in that: Bolts (9) are provided in the mounting holes of the mounting plate (8) for easy fixing.

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