Heat exchange device and air conditioner having the same

Abstract

The utility model provides a kind of heat exchange device and the air conditioner with it, comprising: heat exchanger, the first passage, second passage and third passage are equipped in the heat exchanger, the second passage and the third passage are all with the first passage heat exchange;Valve assembly, the valve assembly is located on the heat exchanger, and it includes at least one expansion valve, the expansion valve is communicated with at least one of the first passage, the second passage and the third passage.According to the heat exchange device of the utility model, valve assembly is arranged on heat exchanger, the integration of heat exchange device can be improved, so that the volume of heat exchange device can be reduced, the arrangement of heat exchange device is facilitated, simultaneously, flow can be adjusted according to the actual heat load of heat exchanger, the heat exchange efficiency is improved, and the stability of system can also be enhanced.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner manufacturing technology, and in particular to a heat exchange device and an air conditioner having the same. Background Technology

[0002] The heat exchange device in the existing air conditioner is relatively large, which makes it difficult to arrange. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a heat exchange device that can be easily arranged.

[0004] This application also proposes an air conditioner having the above-mentioned heat exchange device.

[0005] The heat exchange device according to an embodiment of the present invention includes: a heat exchanger having a first channel, a second channel, and a third channel therein, wherein the second channel and the third channel exchange heat with the first channel; and a valve assembly disposed on the heat exchanger and including at least one expansion valve, wherein the expansion valve communicates with at least one of the first channel, the second channel, and the third channel.

[0006] According to the heat exchange device of this utility model, the valve assembly on the heat exchanger can improve the integration of the heat exchange device, thereby reducing the size of the heat exchange device and facilitating its layout. At the same time, the flow rate can be adjusted according to the actual heat load of the heat exchanger to improve the heat exchange efficiency and enhance the stability of the system.

[0007] According to some embodiments of the present invention, one end of the first channel is formed as a first interface, and a first connecting pipe is connected to the first interface. The valve assembly includes a first expansion valve, which is connected to the first connecting pipe.

[0008] According to some optional embodiments of the present invention, one end of the second channel is formed as a second interface, and a second connecting pipe is connected to the second interface. The valve assembly includes a second expansion valve, one end of which is connected to the first expansion valve, and the other end of which is connected to the second connecting pipe.

[0009] According to some optional embodiments of the present invention, the heat exchange device includes: a first pipeline, one end of the first pipeline being connected to the first expansion valve, and the other end of the first pipeline being connected to the first connecting pipe and the second expansion valve respectively.

[0010] According to some optional embodiments of the present invention, the heat exchange device includes: a three-way connector, the three-way connector having a first port, a second port and a third port, the first port being connected to the end of the first pipeline away from the first expansion valve, the second port being connected to the first connecting pipe, and the third port being connected to the second expansion valve through the second pipeline.

[0011] According to some embodiments of the present invention, one end of the third channel is formed as a third interface, and a third connecting pipe is connected to the third interface. The valve assembly includes a third expansion valve, one end of which is connected to the first expansion valve, and the other end of which is connected to the third connecting pipe.

[0012] According to some optional embodiments of the present invention, the heat exchange device includes: a third pipeline, one end of which is connected to the first expansion valve, and the other end of which is connected to the third expansion valve.

[0013] According to some embodiments of the present invention, the heat exchange device further includes: a first external pipe and a filter, wherein the filter is connected between the first expansion valve and the first external pipe.

[0014] According to some optional embodiments of the present invention, the heat exchange device includes: a fourth pipeline, which is connected between the filter and the first expansion valve.

[0015] According to some embodiments of the present invention, the other end of the first channel is formed as a fourth interface, and a second external connector is connected to the fourth interface; and / or, the other end of the second channel is formed as a fifth interface, and a third external connector is connected to the fifth interface; and / or, the other end of the third channel is formed as a sixth interface, and a fourth external connector is connected to the sixth interface.

[0016] According to some embodiments of the present invention, the heat exchanger includes: a heat exchange unit and a first end plate, the first end plate being arranged on one side of the heat exchange unit in the thickness direction, and the first and fourth interfaces of the first channel, the second and fifth interfaces of the second channel, and the third and sixth interfaces of the third channel being formed on the first end plate.

[0017] According to some optional embodiments of the present invention, the first interface and the fourth interface are arranged at intervals along the length direction of the first end plate, the second interface and the third interface are arranged at the same end of the first end plate along the length direction as the first interface, and the second interface and the third interface are respectively located on both sides of the first interface in the width direction of the first end plate, the fifth interface and the sixth interface are arranged at the same end of the first end plate along the length direction as the fourth interface, and the fifth interface and the sixth interface are respectively located on both sides of the first interface in the width direction of the first end plate.

[0018] According to some embodiments of this utility model, the heat exchanger is a plate heat exchanger.

[0019] An air conditioner according to a second aspect of the present invention includes a heat exchange device according to a first aspect of the present invention.

[0020] According to the present invention, by setting the heat exchange device of the first aspect embodiment above and setting the valve assembly on the heat exchanger, the integration of the heat exchange device can be improved, thereby reducing the volume of the heat exchange device and facilitating the arrangement of the heat exchange device. At the same time, the flow rate can be adjusted according to the actual heat load of the heat exchanger to improve the heat exchange efficiency and enhance the stability of the system.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] Figure 1 This is a system diagram of a heat exchange device according to an embodiment of the present utility model;

[0023] Figure 2 yes Figure 1 A schematic diagram of the heat exchange device at one angle;

[0024] Figure 3 yes Figure 2 A schematic diagram of the heat exchange device shown from another angle;

[0025] Figure 4 yes Figure 2 A schematic diagram of the heat exchange device shown from another angle;

[0026] Figure 5 yes Figure 2 A schematic diagram of the filter shown;

[0027] Figure 6 yes Figure 2 The diagram shows the flow direction of the refrigerant during refrigeration in the heat exchanger shown.

[0028] Figure 7 yes Figure 2 The diagram shows the flow direction of the refrigerant during heating in the heat exchanger.

[0029] Figure label:

[0030] 100. Heat exchange device;

[0031] 10. Heat exchanger; 11. Heat exchange unit; 12. First end plate;

[0032] 101. First Channel; 1011. First Interface; 1012. Fourth Interface; 102. Second Channel; 1021. Second Interface; 1022. Fifth Interface; 103. Third Channel; 1031. Third Interface; 1032. Sixth Interface;

[0033] 20. Valve assembly; 21. First expansion valve; 22. Second expansion valve; 23. Third expansion valve;

[0034] 31. First takeover; 32. Second takeover; 33. Third takeover;

[0035] 41. First pipeline; 42. Second pipeline; 43. Third pipeline; 44. Fourth pipeline;

[0036] 50. T-connector;

[0037] 61. First external control; 62. Second external control; 63. Third external control; 64. Fourth external control;

[0038] 70. Filter;

[0039] 81. Compressor; 82. Liquid side pipe; 83. Vapor side pipe; 84. Vapor-liquid separator; 85. DC motor; 86. Temperature sensing bulb. Detailed Implementation

[0040] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0041] The following is a reference appendix. Figure 1-7 A heat exchange device 100 according to an embodiment of the present utility model is described.

[0042] Reference Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7The heat exchange device 100 according to an embodiment of the present utility model includes: a heat exchanger 10 and a valve assembly 20.

[0043] Specifically, the heat exchanger 10 is provided with a first channel 101, a second channel 102 and a third channel 103, and the second channel 102 and the third channel 103 exchange heat with the first channel 101; the valve assembly 20 is provided on the heat exchanger 10 and includes at least one expansion valve, that is, the valve assembly 20 may include one, two or three or more expansion valves, and the expansion valve is connected to at least one of the first channel 101, the second channel 102 and the third channel 103, that is, the expansion valve may be connected to one, two or three of the first channel 101, the second channel 102 and the third channel 103.

[0044] For example, such as Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, the first channel 101 is located between the second channel 102 and the third channel 103. Since the first channel 101 is adjacent to the second channel 102 and the third channel 103, it is convenient for the first channel 101 to exchange heat with the second channel 102 and the third channel 103. The valve assembly 20 may include three expansion valves, one of which is connected to the second pipeline 42, one of which is connected to the third pipeline 43, and the other of which is connected to the main pipeline.

[0045] When heat exchange is performed in the heat exchange device 100, the refrigerant first flows from the valve assembly 20 to the heat exchanger 10. The refrigerant can exchange heat in the first channel 101, the second channel 102 and the third channel 103. The refrigerant in the first channel 101 can exchange heat with the refrigerant in the second channel 102 and the third channel 103, thereby realizing two-stage heat exchange and enabling rapid heat exchange.

[0046] The heat exchange device 100 of this utility model includes a valve assembly 20 on the heat exchanger 10. The valve assembly 20 is integrated on the heat exchanger 10, which can improve the integration of the heat exchange device 100, thereby reducing the volume of the heat exchange device 100 and the space occupied by the heat exchange device 100 in the air conditioner, making it easier to arrange the heat exchange device 100. At the same time, the valve assembly 20 can control the flow rate and velocity of the refrigerant, thereby responding to system requirements (such as temperature, pressure, superheat signals, etc.) in real time, accurately adjusting the refrigerant flow rate to adapt to variable load conditions. Furthermore, the flow rate can be adjusted according to the actual heat load of the heat exchanger 10 to avoid excessive or insufficient refrigerant supply, improve heat exchange efficiency, and enhance system stability.

[0047] Furthermore, the first channel 101 in the heat exchanger 10 can exchange heat with the second channel 102 and the third channel 103. Compared with the single-stage heat exchange plate in the prior art that only has two channels exchanging heat with each other, the heat exchange plate of this application has higher heat exchange efficiency, thereby further improving the heat exchange efficiency.

[0048] According to the embodiment of the present invention, the heat exchange device 100 is provided with a valve assembly 20 on the heat exchanger 10, which can improve the integration of the heat exchange device 100, thereby reducing the volume of the heat exchange device 100 and facilitating the arrangement of the heat exchange device 100. At the same time, the flow rate can be adjusted according to the actual heat load of the heat exchanger 10 to improve the heat exchange efficiency and enhance the stability of the system.

[0049] According to some embodiments of this utility model, refer to Figure 2 and Figure 3 One end of the first channel 101 (e.g.) Figure 2 The lower end of the first channel 101 shown is formed as a first interface 1011, and a first connecting pipe 31 is connected to the first interface 1011. The valve assembly 20 includes a first expansion valve 21, which is connected to the first connecting pipe 31. Therefore, by providing the first interface 1011, the first connecting pipe 31 can be easily connected to the first channel 101 through the first interface 1011. Simultaneously, by providing the first expansion valve 21, the flow rate of the refrigerant in the first connecting pipe 31 can be controlled, thereby improving heat exchange efficiency.

[0050] For example, such as Figure 2 and Figure 3 As shown, the lower end of the first channel 101 is formed as the first interface 1011. One end of the first connector 31 is connected to the first channel 101 through the first interface 1011, and the other end of the first connector 31 is connected to the first expansion valve 21.

[0051] According to some optional embodiments of the present invention, refer to Figure 2 and Figure 3 One end of the second channel 102 (e.g.) Figure 2 The lower end of the second channel 102 shown is formed as a second interface 1021, and a second connecting pipe 32 is connected to the second interface 1021. The valve assembly 20 includes: a second expansion valve 22, one end of the second expansion valve 22 (e.g., Figure 2 The upper end of the second expansion valve 22 shown is connected to the first expansion valve 21, and the other end (as shown) Figure 2 The lower end of the second expansion valve 22 shown is connected to the second connecting pipe 32.

[0052] Therefore, the second interface 1021 is provided to facilitate the connection between the second connecting pipe 32 and the second channel 102. Simultaneously, the second expansion valve 22 is provided to control the flow rate of the refrigerant within the second connecting pipe 32, thereby improving heat exchange efficiency. Furthermore, the cooperation of the first expansion valve 21 and the second expansion valve 22 allows the refrigerant in the first channel 101 and the second channel 102 to have different flow rates and velocities, thus facilitating heat exchange between the refrigerant in the first channel 101 and the refrigerant in the second channel 102.

[0053] For example, such as Figure 2 and Figure 3 As shown, the lower end of one end of the second channel 102 is formed as the second interface 1021. The second connector 32 is connected to the second channel 102 through the second interface 1021. The second connector 32 is connected to the lower end of the second expansion valve 22. The upper end of the second expansion valve 22 is connected to the first expansion valve 21.

[0054] According to some optional embodiments of the present invention, refer to Figure 2 and Figure 3 The heat exchange device 100 includes: a first pipe 41, one end of the first pipe 41 (e.g., Figure 2 The right end of the first pipe 41 shown is connected to the first expansion valve 21, and the other end of the first pipe 41 (as shown) is connected to the first expansion valve 21. Figure 2 The left end of the first pipeline 41 shown is connected to the first connecting pipe 31 and the second expansion valve 22 respectively.

[0055] Therefore, by setting up the first pipeline 41, the first expansion valve 21 can be connected to the first connecting pipe 31 and the second expansion valve 22, thereby reducing the difficulty of connecting the first expansion valve 21 to the first connecting pipe 31 and the second expansion valve 22.

[0056] For example, such as Figure 2 and Figure 3 As shown, the right end of the first pipe 41 is connected to the lower end of the first expansion valve 21, and the left end of the first pipe 41 is connected to the first connecting pipe 31 and the second expansion valve 22 respectively.

[0057] According to some embodiments of this utility model, refer to Figure 2 and Figure 3 The heat exchange device 100 includes: a three-way connector 50, which has a first port, a second port, and a third port. The first port is connected to the end of the first pipeline 41 furthest from the first expansion valve 21 (e.g., Figure 2 (The left end of the first pipe 41 shown), the second pipe port is connected to the first connecting pipe 31, and the third pipe port is connected to the second expansion valve 22 through the second pipe 42.

[0058] In this way, by setting up a three-way connector 50, the first pipe 41, the first connecting pipe 31 and the second expansion valve 22 can be connected through the first pipe port, the second pipe port and the third pipe port of the three-way connector 50, thereby reducing the number of parts used and reducing production costs.

[0059] For example, such as Figure 2 and Figure 3 As shown, the front end of the tee connector 50 is provided with a first pipe port, which is connected to the left end of the first pipe 41. The lower side of the rear end of the tee connector 50 is provided with a second pipe port, which is connected to the first connecting pipe 31. The upper side of the rear end of the tee connector 50 is provided with a third pipe port, which is connected to the second expansion valve 22 through the second pipe 42.

[0060] According to some embodiments of this utility model, refer to Figure 2 and Figure 3 One end of the third channel 103 (e.g.) Figure 2 The lower end of the third channel 103 shown is formed as a third interface 1031, and a third connecting pipe 33 is connected to the third interface 1031. The valve assembly 20 includes: a third expansion valve 23, one end of the third expansion valve 23 (e.g., Figure 2 The upper end of the third expansion valve 23 shown is connected to the first expansion valve 21, and the other end (as shown) Figure 2 The lower end of the third expansion valve 23 shown is connected to the third connecting pipe 33.

[0061] Thus, by setting up the third interface 1031, the third connecting pipe 33 can be easily connected to the third channel 103 through the third interface 1031. At the same time, the third expansion valve 23 can control the flow rate of the refrigerant in the third connecting pipe 33, thereby improving the heat exchange efficiency. Furthermore, the third expansion valve 23, in conjunction with the second expansion valve 22, allows the refrigerant in the first channel 101 and the third channel 103 to have different flow rates and velocities, thereby facilitating heat exchange between the refrigerant in the first channel 101 and the refrigerant in the third channel 103.

[0062] For example, such as Figure 2 and Figure 3 As shown, the lower end of one end of the third channel 103 is formed as the third interface 1031. The third connector 33 is connected to the third channel 103 through the third interface 1031. The third connector 33 is connected to the lower end of the third expansion valve 23. The upper end of the third expansion valve 23 is connected to the first expansion valve 21.

[0063] According to some embodiments of this utility model, refer to Figure 2 and Figure 3 The heat exchange device 100 includes: a third pipe 43, one end of the third pipe 43 (e.g., Figure 2 The right end of the third pipe 43 shown is connected to the first expansion valve 21, and the other end (as shown) Figure 2 The left end of the third pipe 43 shown is connected to the third expansion valve 23. Therefore, the third pipe 43 facilitates the connection between the first expansion valve 21 and the third expansion valve 23, thereby reducing the difficulty of connecting the first expansion valve 21 and the third expansion valve 23 and reducing the impact of fit tolerances.

[0064] For example, such as Figure 2 and Figure 3 As shown, the right end of the third pipe 43 is connected to the first expansion valve 21, and the left end of the third pipe 43 is connected to the third expansion valve 23.

[0065] According to some embodiments of this utility model, refer to Figure 2 , Figure 3 and Figure 7 The heat exchange device 100 includes a first external pipe 61 and a filter 70, with the filter 70 connected between the first expansion valve 21 and the first external pipe 61. Therefore, the first external pipe 61 facilitates the connection between external structures and the heat exchanger 10. For example, the compressor 81 can be connected to the heat exchanger through the first external pipe 61, thereby reducing the difficulty of connecting the heat exchanger 10 to external structures. Simultaneously, as the main pipeline connecting the heat exchanger 10 to external structures, the first external pipe 61 allows for better control of the refrigerant within the heat exchanger 10, thus ensuring the efficiency and stability of the heat exchange system.

[0066] Furthermore, the filter 70 can filter out mechanical impurities such as metal shavings, welding slag, oxide scale, and dust in the refrigerant, preventing them from entering the heat exchanger 10 and the expansion valve, thereby effectively protecting the heat exchanger 10 and the expansion valve.

[0067] For example, such as Figure 2 , Figure 3 and Figure 7 As shown, filter 70 is connected between the first expansion valve 21 and the first external pipe 61, and the first external pipe 61 is connected to the compressor 81. Preferably, multiple filters 70 can be provided, and multiple filters 70 can ensure the filtration effect.

[0068] According to some optional embodiments of the present invention, refer to Figure 2 and Figure 3 The heat exchange device 100 includes a fourth pipe 44, which connects the filter 70 and the first expansion valve 21. Therefore, the fourth pipe 44 facilitates the connection between the filter 70 and the first expansion valve 21, thereby reducing the difficulty of connecting them.

[0069] According to some embodiments of this utility model, refer to Figure 2 , Figure 3 , Figure 6 and Figure 7 The other end of the first channel 101 (such as...) Figure 6 The upper end of the first channel 101 shown is formed as a fourth interface 1012, and a second external connector 62 is connected to the fourth interface 1012; and / or, the other end of the second channel 102 (such as...) Figure 6 The upper end of the second channel 102 shown is formed as a fifth interface 1022, and a third external connector 63 is connected to the fifth interface 1022; and / or, the other end of the third channel 103 (as shown) ... Figure 6 The upper end of the third channel 103 shown is formed as the sixth interface 1032, and the fourth external connector 64 is connected to the sixth interface 1032.

[0070] In this way, the second external pipe 62 is connected to the fourth interface 1012, the third external pipe 63 is connected to the fifth interface 1022, and the fourth external pipe 64 is connected to the sixth interface 1032, so that the other end of the first channel 101, the other end of the second channel 102, and the other end of the third channel 103 can all be connected to other structures, thereby improving the connection efficiency. At the same time, the second external pipe 62, the third external pipe 63, and the fourth external pipe 64 are all integrated on the heat exchanger 10, which can further improve the integration of the heat exchange device 100, thereby reducing the overall volume of the heat exchange device 100.

[0071] For example, such as Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, the upper end of the first channel 101 forms a fourth interface 1012, and the second external pipe 62 connects the fourth interface 1012 to other structures, such as connecting the fourth interface 1012 to the liquid side pipe 82 through the second external pipe 62. The upper end of the second channel 102 forms a fifth interface 1022, and the third external pipe 63 connects the fifth interface 1022 to other structures, such as connecting the fifth interface 1022 to the compressor 81 through the third external pipe 63. The upper end of the third channel 103 forms a sixth interface 1032, and the fourth external pipe 64 connects the sixth interface 1032 to other structures, such as connecting the sixth interface 1032 to the vapor-liquid separator 84 through the fourth external pipe 64.

[0072] According to some embodiments of this utility model, refer to Figure 2 and Figure 4 The heat exchanger 10 includes a heat exchange unit 11 and a first end plate 12, the first end plate 12 being arranged on the heat exchange unit 11 in the thickness direction (e.g., ...). Figure 4 One side of the front-back direction (as shown) Figure 4(The front side of the heat exchange unit 11 shown) The first interface 1011 and the fourth interface 1012 of the first channel 101, the second interface 1021 and the fifth interface 1022 of the second channel 102, and the third interface 1031 and the sixth interface 1032 of the third channel 103 are all formed on the first end plate 12.

[0073] In this way, the first end plate 12 facilitates the arrangement of the first interface 1011, the second interface 1021, the third interface 1031, the fourth interface 1012, the fifth interface 1022, and the sixth interface 1032. At the same time, the heat exchange unit 11 facilitates the arrangement of the first channel 101, the second channel 102, and the third channel 103. Furthermore, after the refrigerant passes through the heat exchange unit 11, it can flow out from the interface corresponding to the channel, thereby ensuring the normal functioning of the heat exchange device 100.

[0074] For example, such as Figure 2 and Figure 4 As shown, the first end plate 12 is arranged on the front side of the heat exchange unit 11 in the front-rear direction. The first interface 1011, the second interface 1021, the third interface 1031, the fourth interface 1012, the fifth interface 1022 and the sixth interface 1032 are all formed on the first end plate 12. The first channel 101, the second channel 102 and the third channel 103 are formed in the heat exchange unit 11.

[0075] According to some embodiments of this utility model, refer to Figure 3 , Figure 6 and Figure 7 The first interface 1011 and the fourth interface 1012 are located along the length of the first end plate 12 (e.g., ...). Figure 6 The first end plate 12 shown is arranged at intervals in the vertical direction. The second interface 1021 and the third interface 1031 are arranged at the same end of the first end plate 12 in the length direction as the first interface 1011. Figure 6 The lower end of the first end plate 12 shown), and the second interface 1021 and the third interface 1031 are respectively located at the first interface 1011 in the width direction of the first end plate 12 (e.g., the lower end of the first end plate 12). Figure 6 On both sides of the first end plate 12 (in the left-right direction shown), the fifth interface 1022 and the sixth interface 1032 are arranged with the fourth interface 1012 at the same end of the first end plate 12 in the length direction (e.g., on both sides in the left-right direction). Figure 6 The upper end of the first end plate 12 shown), and the fifth interface 1022 and the sixth interface 1032 are respectively located on both sides of the first interface 1011 in the width direction of the first end plate 12.

[0076] In this way, the arrangement of the first interface 1011, the second interface 1021, the third interface 1031, the fourth interface 1012, the fifth interface 1022 and the sixth interface 1032 is reasonable, so that the first channel 101, the second channel 102 and the third channel 103 can make full use of the heat exchange unit 11, thereby effectively ensuring the heat exchange efficiency.

[0077] For example, such as Figure 3 , Figure 6 and Figure 7 As shown, the first interface 1011 and the fourth interface 1012 are arranged at intervals in the vertical direction of the first end plate 12, with the first interface 1011 located below the fourth interface 1012. The second interface 1021 and the fifth interface 1022 are arranged at intervals in the vertical direction of the first end plate 12, with the second interface 1021 located below the fifth interface 1022 and to the left of the first interface 1011, and the fifth interface 1022 located to the left of the fourth interface 1012. The third interface 1031 and the sixth interface 1032 are arranged at intervals in the vertical direction of the first end plate 12, with the third interface 1031 located below the sixth interface 1032 and to the right of the first interface 1011, and the sixth interface 1032 located to the right of the fourth interface 1012.

[0078] Preferably, the pipes are welded together with each other and with the interfaces to ensure the sealing between the pipes and prevent leakage. At the same time, the pipes are made of high-purity copper pipes to ensure sealing.

[0079] According to some embodiments of this utility model, refer to Figure 3 , Figure 6 and Figure 7 The heat exchanger 10 is a plate heat exchanger 10. Therefore, the plate heat exchanger 10 has good heat transfer efficiency, thus ensuring the heat exchange efficiency of the heat exchanger 10 for the refrigerant. Preferably, the plate heat exchanger 10 is made of carbon steel, thereby reducing the manufacturing cost of the heat exchanger 10.

[0080] Furthermore, such as Figure 6 As shown, the heat exchange device 100 also includes: a compressor 81, a liquid-side pipe 82, a steam-side pipe 83, a steam-liquid separator 84, a DC motor 85, and a temperature sensor 86. The compressor 81 is connected to the third external pipe 63, the liquid-side pipe 82 is connected to the second external pipe 62, the steam-side pipe 83 is connected to the heat exchanger 10, the steam-liquid separator 84 is connected to the fourth external pipe 64, and the temperature sensor 86 is located on the pipeline.

[0081] An air conditioner according to a second aspect embodiment of the present invention, referring to... Figure 1 , Figure 2 and Figure 3 This includes the heat exchange device 100 of the first aspect of this embodiment.

[0082] According to the embodiments of the present invention, by providing the heat exchange device 100 of the first aspect embodiment and providing the valve assembly 20 on the heat exchanger 10, the integration of the heat exchange device 100 can be improved, thereby reducing the volume of the heat exchange device 100 and facilitating the arrangement of the heat exchange device 100. At the same time, the flow rate can be adjusted according to the actual heat load of the heat exchanger 10, thereby improving the heat exchange efficiency and enhancing the stability of the system.

[0083] Furthermore, such as Figure 6 As shown, when the air conditioner is cooling, the refrigerant flows from the first external pipe 61 through the filter 70 to the fourth pipe 44. Then, the refrigerant flows through the fourth pipe 44 to the first expansion valve 21. Afterward, the refrigerant flows from the first expansion valve 21 from the first pipe 41 to the tee connector 50. There are two flow paths for the refrigerant: In the first path, the refrigerant flows through the tee connector 50 to the first pipe 31, then from the first pipe 31 through the first interface 1011 to the first channel 101, and then from the fourth interface 1012 of the first channel 101 to the second external pipe 62. Afterward, the refrigerant flows from the second external pipe 62 to the liquid side pipe 82. In the second path, the refrigerant flows through the tee connector 50 from the second pipe 42 to the first external pipe 62. The refrigerant flows from the second expansion valve 22 to the second connecting pipe 32, then from the second connecting pipe 32 through the second interface 1021 to the second channel 102, then from the fifth interface 1022 of the second channel 102 to the third external connecting pipe 63, and then from the third external connecting pipe 63 to the compressor 81. Additionally, the refrigerant flowing to the first expansion valve 21 can also flow from the third pipe 43 to the third expansion valve 23, then from the third expansion valve 23 to the third connecting pipe 33, then from the third connecting pipe 33 through the third interface 1031 to the third channel 103, then from the sixth interface 1032 to the fourth external connecting pipe 64, and then from the fourth external connecting pipe 64 to the vapor-liquid separator 84. At this time, the refrigerant in the first channel 101 can exchange heat with the refrigerant in the second channel 102 and the third channel 103 within the heat exchange unit 11.

[0084] Furthermore, such as Figure 7 As shown, when the air conditioner is heating, the refrigerant flows in the direction of... Figure 6 The refrigerant flows in the opposite direction during refrigeration.

[0085] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0086] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0087] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0088] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0089] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A heat exchange device, characterized by, include: A heat exchanger having a first channel, a second channel, and a third channel, wherein the second channel and the third channel exchange heat with the first channel. A valve assembly disposed on the heat exchanger and including at least one expansion valve, the expansion valve being in communication with at least one of the first channel, the second channel and the third channel.

2. The heat exchange device according to claim 1, characterized in that, One end of the first channel is formed as a first interface, and a first connecting pipe is connected to the first interface. The valve assembly includes a first expansion valve, which is connected to the first connecting pipe.

3. The heat exchange device according to claim 2, characterized in that, One end of the second channel is formed as a second interface, and a second connecting pipe is connected to the second interface. The valve assembly includes a second expansion valve, one end of which is connected to the first expansion valve, and the other end of which is connected to the second connecting pipe.

4. The heat exchange device according to claim 3, characterized in that, include: The first pipeline has one end connected to the first expansion valve and the other end connected to the first connecting pipe and the second expansion valve.

5. The heat exchange device according to claim 4, characterized in that, include: The tee connector has a first port, a second port and a third port. The first port is connected to the end of the first pipeline away from the first expansion valve, the second port is connected to the first connecting pipe, and the third port is connected to the second expansion valve through the second pipeline.

6. The heat exchange device according to claim 2, characterized in that, One end of the third channel is formed as a third interface, and a third connecting pipe is connected to the third interface. The valve assembly includes a third expansion valve, one end of which is connected to the first expansion valve, and the other end of which is connected to the third connecting pipe.

7. The heat exchange device according to claim 6, characterized in that, include: The third pipeline has one end connected to the first expansion valve and the other end connected to the third expansion valve.

8. The heat exchange device according to claim 2, characterized in that, Also includes: A first external pipe and a filter, wherein the filter is connected between the first expansion valve and the first external pipe.

9. The heat exchange device according to claim 8, characterized in that, include: A fourth pipeline is connected between the filter and the first expansion valve.

10. The heat exchange device according to claim 1, characterized in that, The other end of the first channel forms a fourth interface, and a second external connector is connected to the fourth interface; and / or, The other end of the second channel forms a fifth interface, and a third external connector is connected to the fifth interface; and / or, The other end of the third channel forms a sixth interface, and a fourth external pipe is connected to the sixth interface.

11. The heat exchange device according to claim 1, characterized in that, The heat exchanger includes a heat exchange unit and a first end plate. The first end plate is arranged on one side of the heat exchange unit in the thickness direction. The first and fourth interfaces of the first channel, the second and fifth interfaces of the second channel, and the third and sixth interfaces of the third channel are all formed on the first end plate.

12. The heat exchange device according to claim 11, characterized in that, The first interface and the fourth interface are arranged at intervals along the length of the first end plate. The second interface and the third interface are arranged at the same end of the first end plate along the length direction as the first interface, and the second interface and the third interface are respectively located on both sides of the first interface along the width direction of the first end plate. The fifth interface and the sixth interface are arranged at the same end of the first end plate along the length direction as the fourth interface, and the fifth interface and the sixth interface are respectively located on both sides of the first interface along the width direction of the first end plate.

13. The heat exchange device according to claim 1, characterized in that, The heat exchanger is a plate heat exchanger.

14. An air conditioner, characterized in that, The heat exchange device includes any one of claims 1-13.

Images