Radiator, electric control board and air conditioner

Abstract

The utility model provides a radiator, an electric control board and an air conditioner, relates to the technical field of air conditioners, and solves the technical problems that the radiator is complex in structure, large in thermal resistance and high in cost. The radiator comprises a base, a first heat exchange tube and a second heat exchange tube, wherein the base is integrally machined, and an integrated cavity runner is formed in the base; the first heat exchange pipe is located on one side of the base and communicates with one opening of the integrated cavity runner. And the second heat exchange tube is positioned on the other side of the base and is communicated with the other opening part of the integrated cavity flow channel. According to the utility model, the base which is integrally processed is adopted, the integrally formed flow channel is arranged in the base, and the two ends of the base are respectively connected with the heat exchange tubes, so that a complete refrigerant heat dissipation flow path is formed, and the heat exchanger has the characteristics of simple structure, good heat transfer effect, simple process and low cost, has excellent manufacturing manufacturability and is suitable for large-scale application and implementation.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to a radiator, an electronic control board, and an air conditioner. Background Technology

[0002] The power components on the air conditioner's control board generate significant heat and require timely cooling. Therefore, a heat sink is needed to dissipate heat and maintain the normal operation of these components. Current heat sink structures consist of two aluminum profile mounting bases sandwiching a U-shaped tube through which cooling refrigerant flows. The heat dissipated by the power components is first conducted to the aluminum bases, which then transfer it to the refrigerant inside the U-shaped tube. The refrigerant then exchanges heat with the air conditioning system for dissipation. The heat transfer path is: power components—thermal grease—mounting base—thermal grease—refrigerant pipe—refrigerant.

[0003] The applicant has discovered that the prior art has at least the following technical problems: First, judging from the above heat transfer path, the heat transfer process involves many media, resulting in high thermal resistance and low heat transfer efficiency; second, this type of radiator has a complex structure, many processing steps, and high cost. Utility Model Content

[0004] The purpose of this utility model is to provide a radiator, an electronic control board, and an air conditioner to solve the technical problems of complex radiator structure, high thermal resistance, and high cost in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] The present invention provides a radiator comprising a base, a first heat exchange tube, and a second heat exchange tube; wherein: the base is integrally machined and has an integrated cavity flow channel inside; the first heat exchange tube is located on one side of the base and communicates with one opening of the integrated cavity flow channel; the second heat exchange tube is located on the other side of the base and communicates with the other opening of the integrated cavity flow channel.

[0007] The radiator provided by this utility model adopts an integrally machined base and sets an integrally formed flow channel in the base. Heat exchange tubes are connected to both ends of the base to form a complete refrigerant heat dissipation flow path. It has the characteristics of simple structure, good heat transfer effect, simple process and low cost, and has excellent manufacturability, making it suitable for large-scale application.

[0008] As a further improvement of this utility model, the number of integrated cavity channels is two, which are arranged side by side with intervals.

[0009] The present invention has two integrated cavity flow channels, which can be used to form a circulating cooling flow path by utilizing the heat exchange tube at one end, thereby increasing the heat dissipation area and improving the heat dissipation effect.

[0010] As a further improvement of this utility model, the diameter of the integrated cavity flow channel is 7-12mm.

[0011] In this utility model, the diameter of the integrated cavity flow channel is 7-12mm. Using this specification of flow channel reduces the flow resistance of the refrigerant in the flow channel. Moreover, the diameter range is adapted to the size requirements of the radiator. The diameter requirement is selected based on a comprehensive consideration of the radiator volume, heat dissipation requirements, and refrigerant volume.

[0012] As a further improvement of this utility model, the distance between the two integrated cavity channels is 12-40mm.

[0013] This invention increases the heat exchange area while avoiding mutual interference by using appropriate flow channel spacing.

[0014] As a further improvement of this utility model, the cross-section of the integrated cavity flow channel is circular or elliptical.

[0015] As a further improvement of this utility model, the inner wall of the integrated cavity flow channel is a smooth wall surface, or the inner wall of the integrated cavity flow channel is a threaded wall surface.

[0016] When the flow channel has a smooth wall, it can reduce the resistance to refrigerant flow, increase the circulation speed, and improve the heat exchange effect; when a threaded wall is used, the microchannels formed by the threads are used as liquid wicks, and the liquid refrigerant can circulate back through the capillary action of these microchannels.

[0017] As a further improvement of this utility model, when the inner wall of the integrated cavity flow channel is a threaded wall surface, the threaded wall surface is a straight groove thread.

[0018] Straight groove threads can form microchannels while reducing adsorption resistance.

[0019] As a further improvement of this utility model, the groove bottom width of the straight groove thread is 0.1-0.3mm; the tooth height of the straight groove thread is 0.1-0.28mm.

[0020] The dimensions of the grooves in a straight-groove thread are selected based on the viscosity and filling volume of different refrigerants; only the parameter range is listed here.

[0021] As a further improvement of this utility model, the first heat exchange tube is a U-shaped tube, with its two free ends respectively connected to the two integrated cavity flow channels.

[0022] By setting a U-shaped heat exchange tube on one side of the base, the two cavity flow channels form a closed loop, forming an integrated cavity heat pipe radiator.

[0023] As a further improvement of this utility model, the number of the second heat exchange tubes is two, which are respectively connected to the two integrated cavity flow channels.

[0024] The present invention provides an electronic control board, which includes a plurality of power components and the heat sink; all the power components are fixed on the base.

[0025] The electrical control board provided by this utility model fixes the power components on the base of the heat sink, and the base is attached to the power components to achieve the purpose of heat dissipation and cooling of the power components. The heat dissipation process of the new integrated cavity base heat pipe heat sink is as follows: heat from the components → thermal grease → integrated base → refrigerant. The refrigerant is in the heat sink and completes self-driven heat dissipation based on the principle of heat pipe. The conduction path is short, the thermal resistance is small, and the heat exchange efficiency is high.

[0026] The present invention provides an air conditioner, including the aforementioned electronic control board.

[0027] The air conditioner of this utility model includes an electronic control board with an integrated cavity heat pipe radiator. Compared with the radiators in the prior art, it has the advantages of short heat conduction path, high heat exchange efficiency, simple and compact structure, and low cost, and can replace the current traditional radiators. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a three-dimensional structural schematic diagram (I) of the radiator of this utility model;

[0030] Figure 2 This is a three-dimensional structural schematic diagram (II) of the radiator of this utility model;

[0031] Figure 3 This is a schematic diagram of the base structure in the radiator of this utility model;

[0032] Figure 4 This is a schematic diagram of the end face structure of one embodiment of the base in the radiator of this utility model;

[0033] Figure 5 This is a schematic diagram of the end face structure of another embodiment of the base in the radiator of this utility model.

[0034] In the figure: 1. Base; 2. First heat exchange tube; 3. Second heat exchange tube; 4. Fixing hole; 5. Integrated cavity flow channel. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0036] Example 1:

[0037] like Figures 1-5 As shown, this utility model provides a heat sink for the main control board of an air conditioner. Specifically, the heat sink includes a base 1, a first heat exchange tube 2, and a second heat exchange tube 3.

[0038] The base 1 is integrally machined and has an integrated cavity flow channel 5 inside. The integral machining method can be mechanical machining or profile extrusion molding. The base 1 with integrated cavity flow channel 5 is made by mechanical machining or profile extrusion molding. In use, the base 1 directly contacts the power components through thermally conductive silicone and is fixed to the power components. The heat of the power components is directly conducted to the base 1 through the thermally conductive silicone, which achieves the purpose of heat dissipation and cooling of the power components. The cold medium flows in the integrated cavity flow channel 5 of the base 1. The heat can be directly transferred from the base 1 to the cold medium, reducing the transfer path, reducing thermal resistance, and improving the heat exchange effect.

[0039] In this embodiment, as Figure 4 and Figure 5 As shown, there are two integrated cavity channels 5, which are arranged side by side with intervals.

[0040] The integrated cavity flow channel 5 of this utility model is provided in two forms, so that the heat exchange tube at one end can be used to form a circulating cooling flow path, thereby increasing the heat dissipation area and improving the heat dissipation effect.

[0041] As a further improvement of this utility model, the diameter of the integrated cavity flow channel 5 is 7-12mm. Aluminum tubes, copper tubes and other heat exchange tubes are welded to the holes at both ends of the base 1 to form an integrated cavity heat pipe radiator. The refrigerant flows in the cavity flow channel, and the thermal resistance between the base 1 and the refrigerant is eliminated.

[0042] In this utility model, the integrated cavity flow channel 5 has a diameter of 7-12mm. Using this specification of flow channel reduces the flow resistance of refrigerant in the flow channel. Moreover, the diameter range is adapted to the size requirements of the radiator. The diameter requirement is selected based on a comprehensive consideration of the radiator volume, heat dissipation requirements, and refrigerant volume.

[0043] As a further improvement of this utility model, the distance between the two integrated cavity flow channels 5 is 12-40mm.

[0044] This invention increases the heat exchange area while avoiding mutual interference by using appropriate flow channel spacing.

[0045] As a further improvement of this utility model, the cross-section of the integrated cavity flow channel 5 is a straight circular or elliptical shape.

[0046] As an optional embodiment of this utility model, such as Figure 4 As shown, the inner wall of the integrated cavity flow channel 5 is a smooth wall surface.

[0047] As another optional embodiment of this utility model, such as Figure 5 As shown, the inner wall of the integrated cavity flow channel 5 is a threaded wall, and the main function of the thread is to enhance the adsorption and heat exchange effect of the refrigerant.

[0048] When the flow channel has a smooth wall, it can reduce the resistance to refrigerant flow, increase the circulation speed, and improve the heat exchange effect; when a threaded wall is used, the microchannels formed by the threads are used as liquid wicks, and the liquid refrigerant can circulate back through the capillary action of these microchannels.

[0049] As a further improvement of this utility model, when the inner wall of the integrated cavity flow channel 5 is a threaded wall surface, the threaded wall surface is a straight groove thread. The straight groove thread can form a microchannel and reduce adsorption resistance.

[0050] As a further improvement of this utility model, the groove bottom width of the straight groove thread is 0.1-0.3mm; the tooth height of the straight groove thread is 0.1-0.28mm.

[0051] The dimensions of the grooves in a straight-groove thread are selected based on the viscosity and filling volume of different refrigerants; only the parameter range is listed here.

[0052] In this embodiment, the integrated radiator is filled with refrigerant such as R22 / R32 / R410a / R134a, or it can be filled with pure water as the refrigerant.

[0053] In this embodiment, the base 1 is made of aluminum alloy, and its overall shape can be rectangular, circular, polygonal, or other shapes.

[0054] The first heat exchange tube 2 is located on one side of the base 1 and is connected to one opening of the integrated cavity flow channel 5. Specifically, the first heat exchange tube 2 can be connected to the base 1 by welding. The specifications of the first heat exchange tube 2 should be compatible with the specifications of the integrated cavity flow channel 5 to ensure the flow rate of the refrigerant, reduce the flow resistance changes caused by specification changes, and reduce problems such as leakage caused by specification mismatch.

[0055] The second heat exchange tube 3 is located on the other side of the base 1 and is connected to another opening of the integrated cavity flow channel 5.

[0056] Specifically, the second heat exchange tube 3 can be connected to the base 1 by welding. The specifications of the second heat exchange tube 3 should be compatible with the specifications of the integrated cavity flow channel 5 to ensure the flow rate of the refrigerant, reduce the flow resistance changes caused by specification changes, and reduce problems such as leakage caused by specification mismatch.

[0057] The heat exchange tube is connected to the integrated cavity base 1 to conduct electricity between the cavities of the base 1.

[0058] The radiator provided by this utility model adopts an integrally machined base 1 and an integrally formed flow channel is set in the base 1. Heat exchange tubes are connected to both ends of the base 1 to form a complete refrigerant heat dissipation flow path. It has the characteristics of simple structure, good heat transfer effect, simple process and low cost, and has excellent manufacturability, making it suitable for large-scale application.

[0059] As a further improvement of this utility model, the first heat exchange tube 2 is a U-shaped tube, with its two free ends connected to two integrated cavity flow channels 5 respectively.

[0060] By setting a U-shaped heat exchange tube on one side of the base 1, the two cavity flow channels form a closed loop, forming an integrated cavity heat pipe radiator.

[0061] As a further improvement of this utility model, there are two second heat exchange tubes 3, which are respectively connected to two integrated cavity flow channels 5.

[0062] It should be noted that, in this embodiment, the diameter of the first heat exchange tube 2 and the second heat exchange tube 3 ranges from 7mm to 12mm. Both the first heat exchange tube 2 and the second heat exchange tube 3 are internally threaded tubes. The internal threads are straight groove threads, with a groove bottom width ranging from 0.1mm to 0.3mm and a tooth height ranging from 0.10mm to 0.28mm. The microchannel grooves formed by the internal threads can form liquid wicks, allowing the liquid refrigerant to circulate back through the capillary action of these microchannel liquid wicks, forming a self-driven evaporation-condensation cycle.

[0063] Example 2:

[0064] The present invention provides an electronic control board, which includes several power components and a heat sink; all power components are fixed on the base 1.

[0065] like Figures 1-5 As shown, the radiator includes a base 1, a first heat exchange tube 2, and a second heat exchange tube 3.

[0066] The base 1 is integrally machined and has an integrated cavity flow channel 5 inside. The integral machining method can be mechanical machining or profile extrusion molding. The base 1 with integrated cavity flow channel 5 is made by mechanical machining or profile extrusion molding. In use, the base 1 directly contacts the power components through thermally conductive silicone and is fixed to the power components. The heat of the power components is directly conducted to the base 1 through the thermally conductive silicone, which achieves the purpose of heat dissipation and cooling of the power components. The cold medium flows in the integrated cavity flow channel 5 of the base 1. The heat can be directly transferred from the base 1 to the cold medium, reducing the transfer path, reducing thermal resistance, and improving the heat exchange effect.

[0067] In this embodiment, as Figure 4 and Figure 5 As shown, there are two integrated cavity channels 5, which are arranged side by side with intervals.

[0068] The integrated cavity flow channel 5 of this utility model is provided in two forms, so that the heat exchange tube at one end can be used to form a circulating cooling flow path, thereby increasing the heat dissipation area and improving the heat dissipation effect.

[0069] As a further improvement of this utility model, the diameter of the integrated cavity flow channel 5 is 7-12mm. Aluminum tubes, copper tubes and other heat exchange tubes are welded to the holes at both ends of the base 1 to form an integrated cavity heat pipe radiator. The refrigerant flows in the cavity flow channel, and the thermal resistance between the base 1 and the refrigerant is eliminated.

[0070] In this utility model, the integrated cavity flow channel 5 has a diameter of 7-12mm. Using this specification of flow channel reduces the flow resistance of refrigerant in the flow channel. Moreover, the diameter range is adapted to the size requirements of the radiator. The diameter requirement is selected based on a comprehensive consideration of the radiator volume, heat dissipation requirements, and refrigerant volume.

[0071] As a further improvement of this utility model, the distance between the two integrated cavity flow channels 5 is 12-40mm.

[0072] This invention increases the heat exchange area while avoiding mutual interference by using appropriate flow channel spacing.

[0073] As a further improvement of this utility model, the cross-section of the integrated cavity flow channel 5 is a straight circular or elliptical shape.

[0074] As an optional embodiment of this utility model, such as Figure 4 As shown, the inner wall of the integrated cavity flow channel 5 is a smooth wall surface.

[0075] As another optional embodiment of this utility model, such as Figure 5 As shown, the inner wall of the integrated cavity flow channel 5 is a threaded wall, and the main function of the thread is to enhance the adsorption and heat exchange effect of the refrigerant.

[0076] When the flow channel has a smooth wall, it can reduce the resistance to refrigerant flow, increase the circulation speed, and improve the heat exchange effect; when a threaded wall is used, the microchannels formed by the threads are used as liquid wicks, and the liquid refrigerant can circulate back through the capillary action of these microchannels.

[0077] As a further improvement of this utility model, when the inner wall of the integrated cavity flow channel 5 is a threaded wall surface, the threaded wall surface is a straight groove thread. The straight groove thread can form a microchannel and reduce adsorption resistance.

[0078] As a further improvement of this utility model, the groove bottom width of the straight groove thread is 0.1-0.3mm; the tooth height of the straight groove thread is 0.1-0.28mm.

[0079] The dimensions of the grooves in a straight-groove thread are selected based on the viscosity and filling volume of different refrigerants; only the parameter range is listed here.

[0080] In this embodiment, the integrated radiator is filled with refrigerant such as R22 / R32 / R410a / R134a, or it can be filled with pure water as the refrigerant.

[0081] In this embodiment, the base 1 is made of aluminum alloy, and its overall shape can be rectangular, circular, polygonal, or other shapes.

[0082] The first heat exchange tube 2 is located on one side of the base 1 and is connected to one opening of the integrated cavity flow channel 5. Specifically, the first heat exchange tube 2 can be connected to the base 1 by welding. The specifications of the first heat exchange tube 2 should be compatible with the specifications of the integrated cavity flow channel 5 to ensure the flow rate of the refrigerant, reduce the flow resistance changes caused by specification changes, and reduce problems such as leakage caused by specification mismatch.

[0083] The second heat exchange tube 3 is located on the other side of the base 1 and is connected to another opening of the integrated cavity flow channel 5.

[0084] Specifically, the second heat exchange tube 3 can be connected to the base 1 by welding. The specifications of the second heat exchange tube 3 should be compatible with the specifications of the integrated cavity flow channel 5 to ensure the flow rate of the refrigerant, reduce the flow resistance changes caused by specification changes, and reduce problems such as leakage caused by specification mismatch.

[0085] The heat exchange tube is connected to the integrated cavity base 1 to conduct electricity between the cavities of the base 1.

[0086] The radiator provided by this utility model adopts an integrally machined base 1 and an integrally formed flow channel is set in the base 1. Heat exchange tubes are connected to both ends of the base 1 to form a complete refrigerant heat dissipation flow path. It has the characteristics of simple structure, good heat transfer effect, simple process and low cost, and has excellent manufacturability, making it suitable for large-scale application.

[0087] As a further improvement of this utility model, the first heat exchange tube 2 is a U-shaped tube, with its two free ends connected to two integrated cavity flow channels 5 respectively.

[0088] By setting a U-shaped heat exchange tube on one side of the base 1, the two cavity flow channels form a closed loop, forming an integrated cavity heat pipe radiator.

[0089] As a further improvement of this utility model, there are two second heat exchange tubes 3, which are respectively connected to two integrated cavity flow channels 5.

[0090] It should be noted that, in this embodiment, the diameter of the first heat exchange tube 2 and the second heat exchange tube 3 ranges from 7mm to 12mm. Both the first heat exchange tube 2 and the second heat exchange tube 3 are internally threaded tubes. The internal threads are straight groove threads, with a groove bottom width ranging from 0.1mm to 0.3mm and a tooth height ranging from 0.10mm to 0.28mm. The microchannel grooves formed by the internal threads can form liquid wicks, allowing the liquid refrigerant to circulate back through the capillary action of these microchannel liquid wicks, forming a self-driven evaporation-condensation cycle.

[0091] The electrical control board provided by this utility model fixes the power components on the base 1 of the heat sink. The base 1 is attached and fixed to the power components, which serves to dissipate heat and cool the power components. The heat dissipation process of the new integrated cavity base 1 type heat pipe heat sink is as follows: heat from the components → thermal grease → integrated base 1 → refrigerant. The refrigerant is in the heat sink and completes self-driven heat dissipation based on the principle of heat pipe. The conduction path is short, the thermal resistance is small, and the heat exchange efficiency is high.

[0092] The working principle of this novel radiator is as follows: the refrigerant absorbs heat and evaporates at the hot end, while condensing at the cold end. It then flows back to the hot end through capillary action in the internally threaded microchannels, where it absorbs heat and evaporates again, forming a circulating cooling cycle. This radiator can be used for heat dissipation of power devices in air conditioning systems.

[0093] Example 3:

[0094] The present invention provides an air conditioner, including the aforementioned electronic control board.

[0095] The control board includes several power components and a heat sink; all power components are fixed on the base 1.

[0096] like Figures 1-5As shown, the radiator includes a base 1, a first heat exchange tube 2, and a second heat exchange tube 3.

[0097] The base 1 is integrally machined and has an integrated cavity flow channel 5 inside. The integral machining method can be mechanical machining or profile extrusion molding. The base 1 with integrated cavity flow channel 5 is made by mechanical machining or profile extrusion molding. In use, the base 1 directly contacts the power components through thermally conductive silicone and is fixed to the power components. The heat of the power components is directly conducted to the base 1 through the thermally conductive silicone, which achieves the purpose of heat dissipation and cooling of the power components. The cold medium flows in the integrated cavity flow channel 5 of the base 1. The heat can be directly transferred from the base 1 to the cold medium, reducing the transfer path, reducing thermal resistance, and improving the heat exchange effect.

[0098] In this embodiment, as Figure 4 and Figure 5 As shown, there are two integrated cavity channels 5, which are arranged side by side with intervals.

[0099] The integrated cavity flow channel 5 of this utility model is provided in two forms, so that the heat exchange tube at one end can be used to form a circulating cooling flow path, thereby increasing the heat dissipation area and improving the heat dissipation effect.

[0100] As a further improvement of this utility model, the diameter of the integrated cavity flow channel 5 is 7-12mm. Aluminum tubes, copper tubes and other heat exchange tubes are welded to the holes at both ends of the base 1 to form an integrated cavity heat pipe radiator. The refrigerant flows in the cavity flow channel, and the thermal resistance between the base 1 and the refrigerant is eliminated.

[0101] In this utility model, the integrated cavity flow channel 5 has a diameter of 7-12mm. Using this specification of flow channel reduces the flow resistance of refrigerant in the flow channel. Moreover, the diameter range is adapted to the size requirements of the radiator. The diameter requirement is selected based on a comprehensive consideration of the radiator volume, heat dissipation requirements, and refrigerant volume.

[0102] As a further improvement of this utility model, the distance between the two integrated cavity flow channels 5 is 12-40mm.

[0103] This invention increases the heat exchange area while avoiding mutual interference by using appropriate flow channel spacing.

[0104] As a further improvement of this utility model, the cross-section of the integrated cavity flow channel 5 is a straight circular or elliptical shape.

[0105] As an optional embodiment of this utility model, such as Figure 4 As shown, the inner wall of the integrated cavity flow channel 5 is a smooth wall surface.

[0106] As another optional embodiment of this utility model, such as Figure 5 As shown, the inner wall of the integrated cavity flow channel 5 is a threaded wall, and the main function of the thread is to enhance the adsorption and heat exchange effect of the refrigerant.

[0107] When the flow channel has a smooth wall, it can reduce the resistance to refrigerant flow, increase the circulation speed, and improve the heat exchange effect; when a threaded wall is used, the microchannels formed by the threads are used as liquid wicks, and the liquid refrigerant can circulate back through the capillary action of these microchannels.

[0108] As a further improvement of this utility model, when the inner wall of the integrated cavity flow channel 5 is a threaded wall surface, the threaded wall surface is a straight groove thread. The straight groove thread can form a microchannel and reduce adsorption resistance.

[0109] As a further improvement of this utility model, the groove bottom width of the straight groove thread is 0.1-0.3mm; the tooth height of the straight groove thread is 0.1-0.28mm.

[0110] The dimensions of the grooves in a straight-groove thread are selected based on the viscosity and filling volume of different refrigerants; only the parameter range is listed here.

[0111] In this embodiment, the integrated radiator is filled with refrigerant such as R22 / R32 / R410a / R134a, or it can be filled with pure water as the refrigerant.

[0112] In this embodiment, the base 1 is made of aluminum alloy, and its overall shape can be rectangular, circular, polygonal, or other shapes.

[0113] The first heat exchange tube 2 is located on one side of the base 1 and is connected to one opening of the integrated cavity flow channel 5. Specifically, the first heat exchange tube 2 can be connected to the base 1 by welding. The specifications of the first heat exchange tube 2 should be compatible with the specifications of the integrated cavity flow channel 5 to ensure the flow rate of the refrigerant, reduce the flow resistance changes caused by specification changes, and reduce problems such as leakage caused by specification mismatch.

[0114] The second heat exchange tube 3 is located on the other side of the base 1 and is connected to another opening of the integrated cavity flow channel 5.

[0115] Specifically, the second heat exchange tube 3 can be connected to the base 1 by welding. The specifications of the second heat exchange tube 3 should be compatible with the specifications of the integrated cavity flow channel 5 to ensure the flow rate of the refrigerant, reduce the flow resistance changes caused by specification changes, and reduce problems such as leakage caused by specification mismatch.

[0116] The heat exchange tube is connected to the integrated cavity base 1 to conduct electricity between the cavities of the base 1.

[0117] The radiator provided by this utility model adopts an integrally machined base 1 and an integrally formed flow channel is set in the base 1. Heat exchange tubes are connected to both ends of the base 1 to form a complete refrigerant heat dissipation flow path. It has the characteristics of simple structure, good heat transfer effect, simple process and low cost, and has excellent manufacturability, making it suitable for large-scale application.

[0118] As a further improvement of this utility model, the first heat exchange tube 2 is a U-shaped tube, with its two free ends connected to two integrated cavity flow channels 5 respectively.

[0119] By setting a U-shaped heat exchange tube on one side of the base 1, the two cavity flow channels form a closed loop, forming an integrated cavity heat pipe radiator.

[0120] As a further improvement of this utility model, there are two second heat exchange tubes 3, which are respectively connected to two integrated cavity flow channels 5.

[0121] It should be noted that, in this embodiment, the diameter of the first heat exchange tube 2 and the second heat exchange tube 3 ranges from 7mm to 12mm. Both the first heat exchange tube 2 and the second heat exchange tube 3 are internally threaded tubes. The internal threads are straight groove threads, with a groove bottom width ranging from 0.1mm to 0.3mm and a tooth height ranging from 0.10mm to 0.28mm. The microchannel grooves formed by the internal threads can form liquid wicks, allowing the liquid refrigerant to circulate back through the capillary action of these microchannel liquid wicks, forming a self-driven evaporation-condensation cycle.

[0122] The electrical control board provided by this utility model fixes the power components on the base 1 of the heat sink. The base 1 is attached and fixed to the power components, which serves to dissipate heat and cool the power components. The heat dissipation process of the new integrated cavity base 1 type heat pipe heat sink is as follows: heat from the components → thermal grease → integrated base 1 → refrigerant. The refrigerant is in the heat sink and completes self-driven heat dissipation based on the principle of heat pipe. The conduction path is short, the thermal resistance is small, and the heat exchange efficiency is high.

[0123] The working principle of this novel radiator is as follows: the refrigerant absorbs heat and evaporates at the hot end, while condensing at the cold end. It then flows back to the hot end through capillary action in the internally threaded microchannels, where it absorbs heat and evaporates again, forming a circulating cooling cycle. This radiator can be used for heat dissipation of power devices in air conditioning systems.

[0124] The air conditioner of this utility model includes an electronic control board with an integrated cavity heat pipe radiator. Compared with the radiators in the prior art, it has the advantages of short heat conduction path, high heat exchange efficiency, simple and compact structure, and low cost, and can replace the current traditional radiators.

[0125] It should be noted that, as Figures 1-2 In the middle, the notch on the base 1 is not a necessary structure; whether there is a notch or not is determined by the radiator mounting structure.

[0126] like Figures 1-3 As shown, the several circular holes on the base 1 are the fixing holes 4 of the power chip, and their distribution is irregular and determined by the chip position.

[0127] First, it should be noted that "inward" refers to the direction towards the center of the storage space, while "outward" refers to the direction away from the center of the storage space.

[0128] 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," and "circumferential" indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are 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.

[0129] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0130] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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 or an electrical 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0131] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0132] 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.

[0133] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A radiator, characterized in that, It includes a base, a first heat exchange tube, and a second heat exchange tube; wherein: the base is integrally machined and has an integrated cavity flow channel inside; the first heat exchange tube is located on one side of the base and communicates with one opening of the integrated cavity flow channel; the second heat exchange tube is located on the other side of the base and communicates with the other opening of the integrated cavity flow channel.

2. The radiator according to claim 1, characterized in that, The number of integrated cavity flow channels is two, arranged side by side with intervals.

3. The radiator according to claim 2, characterized in that, The distance between the two integrated cavity channels is 12-40 mm.

4. The radiator according to claim 1, characterized in that, The integrated cavity flow channel has a circular or elliptical cross-section.

5. The radiator according to claim 1, characterized in that, The inner wall of the integrated cavity flow channel is either smooth or threaded.

6. The radiator according to claim 5, characterized in that, When the inner wall of the integrated cavity flow channel is a threaded wall, the threaded wall is a straight groove thread.

7. The radiator according to claim 6, characterized in that, The groove bottom width of the straight groove thread is 0.1-0.3mm; the tooth height of the straight groove thread is 0.1-0.28mm.

8. The radiator according to claim 2, characterized in that, The first heat exchange tube is a U-shaped tube, with its two free ends connected to the two integrated cavity flow channels respectively.

9. The radiator according to claim 2, characterized in that, The second heat exchange tube consists of two tubes, which are respectively connected to the two integrated cavity flow channels.

10. An electronic control board, characterized in that, It includes several power components and a heat sink as described in any one of claims 1-9; all of the power components are fixed on the base.

11. An air conditioner, characterized in that, Includes the electronic control board as described in claim 10.

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