Heat sink and heat source unit

Abstract

The present application discloses a heat dissipation device and a heat source unit, wherein the heat dissipation device is a part of a refrigerant circulation loop, the heat dissipation device comprises a first pipeline and a heat dissipation component connected to the first pipeline, the first pipeline is a part of a pipeline of the refrigerant circulation loop, and its main component is steel, the heat dissipation component comprises a heat dissipation body and a heat dissipation pipe, the heat dissipation body has a part of the flow path of the refrigerant circulation loop, the main component of the heat dissipation body is aluminum, and the heat dissipation body is thermally connected to a target cooling member; the heat dissipation pipe comprises a first adapter and a second adapter, the first end of the first adapter is connected to the heat dissipation body, and the main component of the first adapter is aluminum; the second adapter is arranged at the second end of the first adapter, and the main component of the second adapter is copper; wherein the first pipeline is connected to the second adapter. The present application aims to improve the stability of the pipeline of the refrigerant circulation loop, and at the same time ensure the connection stability of the heat dissipation device and the refrigerant circulation loop.

Description

Technical Field

[0001] The present application relates to the field of refrigerant transmission technology, and in particular to a heat dissipation device and a heat source unit. Background Art

[0002] Air conditioners and other HVAC equipment are equipped with a heat exchange system, and the core component of this system is the refrigerant circulation loop. The refrigerant circulation loop connects the various parts to each other, ensuring that the refrigerant can flow smoothly and efficiently throughout the system. This circulation process is the key to achieving cooling or heating functions.

[0003] In the related art, the pipes of the refrigerant circulation loop are usually made of widely used copper. However, in actual applications, copper pipes may be affected by environmental factors such as temperature, humidity, and mechanical stress under long-term use, causing changes in their performance and even leakage, thereby affecting the normal operation of the entire heat exchange system. Summary of the invention

[0004] The embodiments of the present application provide a heat dissipation device and a heat source unit, which can improve the stability of the pipeline of the refrigerant circulation loop and ensure the stability of the pipeline connection between the heat dissipation device and the refrigerant circulation loop.

[0005] The embodiment of the present application provides a heat dissipation device, which is a part of a refrigerant circulation loop. The heat dissipation device includes a first pipeline and a heat dissipation component connected to the first pipeline. The first pipeline is a part of the refrigerant circulation loop, and its main component is steel. The heat dissipation component includes:

[0006] A heat dissipation body, the heat dissipation body having a part of the flow path of the refrigerant circulation circuit, the main component of the heat dissipation body is aluminum, and the heat dissipation body is thermally connected to the target cooling member; and

[0007] A heat dissipation pipe, the heat dissipation pipe comprising:

[0008] A first adapter portion, wherein a first end of the first adapter portion is connected to the heat dissipation body, and a main component of the first adapter portion is aluminum;

[0009] A second transition portion, the second transition portion is arranged at a second end of the first transition portion, and a main component of the second transition portion is copper;

[0010] Wherein, the first pipeline is connected to the second adapter.

[0011] A heat dissipation device proposed in the embodiment of the present application constitutes part of the refrigerant circulation loop. The device is mainly composed of a first pipeline and a heat dissipation component. The first pipeline is an important channel for the circulation of the refrigerant, and its main body is made of steel. This change not only improves the structural strength and corrosion resistance of the pipeline, but also utilizes the good seismic resistance of steel to ensure the stable operation of the system. In addition, the thermal insulation performance of steel is better than that of copper pipes, which effectively avoids unnecessary cooling of the refrigerant during the transmission process, thereby improving the overall efficiency of the system.

[0012] In addition, the heat dissipation component integrates the heat dissipation body and the heat dissipation pipe. The heat dissipation body is another flow channel for the refrigerant. Aluminum is selected as the main material. With its excellent thermal conductivity, it can quickly conduct and dissipate the heat generated by the heating element. At the same time, the heat dissipation body and the target cooling part are connected by thermal conduction, which further enhances the heat dissipation effect. At the same time, the design of the heat dissipation pipe realizes the transition and connection between materials. One end of it, that is, the first adapter part, is directly connected to the heat dissipation body. The two are made of the same material, aluminum, to ensure good connection compatibility. The other end, that is, the second adapter part, is made of copper. This design enables it to be easily and stably connected to the first pipeline (steel), avoiding the connection problem caused by material mismatch. In summary, the heat dissipation device in the embodiment of the present application can not only improve the stability of the pipeline of the refrigerant circulation loop, but also ensure the stability of the pipeline connection between the heat dissipation device and the refrigerant circulation loop.

[0013] In some embodiments, the portion where the first pipeline is connected to the second transition portion is defined as a third transition portion, and a main component of the third transition portion is steel.

[0014] In some embodiments, a main component of the first pipeline is stainless steel, and a main component of the third transition portion is stainless steel.

[0015] In some embodiments, the portion where the first pipe is connected to the second transition portion is defined as a third transition portion, and a main component of the third transition portion is copper.

[0016] In some embodiments, the first pipeline includes a main pipe portion, the main component of which is steel, and the third transition portion is a coating provided on an inner pipe surface or an outer pipe surface of a first end portion of the main pipe portion, the main component of which is copper.

[0017] In some embodiments, the first pipeline includes a main pipe portion, the main pipe portion is mainly composed of steel, the third transition portion is a sleeve sleeved on the inner pipe surface or the outer pipe surface of the first end portion of the main pipe portion, the end of the sleeve away from the main pipe portion is sleeved on the inner pipe surface or the outer pipe surface of the second transition portion, and the main component of the sleeve is copper.

[0018] In some embodiments, the first end of the first pipeline is connected to the second adapter, and the second end of the first pipeline is connected to the heat source heat exchanger of the refrigerant circulation loop.

[0019] In some embodiments, the main pipe portion includes a first pipe segment, a transition pipe segment, and a second pipe segment connected in sequence, the coating covers the inner pipe surface and / or the outer pipe surface of the first pipe segment, the transition pipe segment, and the second pipe segment, and the first pipe segment is closer to the second transition portion than the second pipe segment;

[0020] The inner diameter of the first pipe segment is larger than or smaller than the inner diameter of the second pipe segment, or the inner diameters of the first pipe segment, the transition pipe segment and the second pipe segment are the same.

[0021] In some embodiments, the main pipe section includes a first pipe section, a transition pipe section, and a second pipe section connected in sequence, the first pipe section is closer to the second transition section than the second pipe section, and the sleeve is sleeved on the outer pipe surface of the first pipe section;

[0022] The inner diameter of the first pipe segment is larger than or smaller than the inner diameter of the second pipe segment, or the inner diameters of the first pipe segment, the transition pipe segment and the second pipe segment are the same.

[0023] In some embodiments, the main pipe section includes a first pipe section, a transition pipe section, and a second pipe section connected in sequence, the first pipe section is closer to the second transition section than the second pipe section, and the sleeve is nested in the inner pipe surface of the first pipe section;

[0024] The inner diameter of the first pipe segment is larger than or smaller than the inner diameter of the second pipe segment, or the inner diameters of the first pipe segment, the transition pipe segment and the second pipe segment are the same.

[0025] In some embodiments, the sleeve includes a first sub-tube, a transition sub-tube and a second sub-tube connected to each other, and the first sub-tube is farther away from the second transition portion than the second sub-tube;

[0026] The inner diameter of the first sub-tube is larger or smaller than the inner diameter of the second sub-tube, or the inner diameters of the first sub-tube, the transition sub-tube and the second sub-tube are the same.

[0027] In some of the embodiments, the target cooling element is a heat generating element on the refrigerant circulation loop or a heat generating electronic component of an electronic control unit.

[0028] In some embodiments, the heat dissipation body includes at least one plate tube, and each of the plate tubes includes at least one layer of microchannels.

[0029] In some of the embodiments, the heat dissipation body is constructed as a plate tube, and the plate tube includes a plurality of microchannels;

[0030] The heat dissipation pipe includes:

[0031] A connecting part, the connecting part is configured to be in a hollow flat shape for the plate tube to be inserted, and the main component of the connecting part is aluminum;

[0032] The first adapter portion is configured in a circular tube shape, and a first end of the first adapter portion is connected to the connecting portion;

[0033] The second adapter portion is configured in a circular tube shape, and the first adapter portion and the second adapter portion are coaxially arranged.

[0034] In some embodiments, the number of the heat dissipation pipes is two, which are respectively connected to two ends of the heat dissipation body, and the two heat dissipation pipes include:

[0035] Two connecting parts, each of which is configured to be a hollow flat shape and for inserting two ends of the plate tube respectively;

[0036] Two first transfer parts are connected to the two connection parts respectively;

[0037] Two second adapter parts, one of which is connected to the first pipeline, and the other second adapter part is connected to a steel liquid side outlet pipe, and the liquid side outlet pipe has a liquid side outlet of the refrigerant circulation loop.

[0038] In some embodiments, the heat dissipation body is constructed as a plurality of plate tubes, the plate surfaces of the plurality of plate tubes are located in the same plane and the plurality of plate tubes are sequentially spaced apart in a direction parallel to the plane;

[0039] The heat dissipation connecting pipe part comprises:

[0040] A header, the main component of which is aluminum, one end of each of the plurality of plate tubes being inserted into a tube cavity of the header;

[0041] The first adapter portion is configured as a circular tube, and a first end of the first adapter portion is connected to the header;

[0042] The second adapter portion is configured in a circular tube shape, and the first adapter portion and the second adapter portion are coaxially arranged.

[0043] In some embodiments, the number of the heat dissipation pipes is two, which are respectively connected to two ends of the heat dissipation body, and the two heat dissipation pipes include:

[0044] Two headers, defined as a first header and a second header, the first header is closer to the heat source heat exchanger of the refrigerant circulation loop than the second header, and the first header and the second header are respectively used for inserting two ends of the plurality of plate tubes;

[0045] Two first transfer parts are connected to the two connection parts respectively;

[0046] Two second adapter parts, one of which is connected to the first pipeline, and the other second adapter part is connected to the liquid side outlet pipe, and the liquid side outlet pipe has a liquid side outlet of the refrigerant circulation loop.

[0047] In some embodiments, the number of the heat dissipation pipes is four, and the four heat dissipation pipes include a main inlet pipe, a main outlet pipe, an auxiliary inlet pipe, and an auxiliary outlet pipe, the main inlet pipe and the auxiliary outlet pipe are arranged side by side and located on the same side of the heat dissipation body, and the main outlet pipe and the auxiliary inlet pipe are arranged side by side and located on the other side opposite to the heat dissipation body;

[0048] Each of the plate tubes at least comprises a first plate body and a second plate body which are attached to each other, the microchannels of the first plate body are respectively connected to the main inlet pipe and the main outlet pipe, the second adapter portion of the main inlet pipe is connected to the first pipeline, the second adapter portion of the main outlet pipe is connected to the liquid side outlet pipe, and the liquid side outlet pipe has a liquid side outlet of the refrigerant circulation loop;

[0049] The microchannels of the second plate body are respectively connected to the auxiliary inlet pipe and the auxiliary outlet pipe, the second adapter of the auxiliary inlet pipe is connected to the liquid side outlet pipe through an expansion valve, and the second adapter of the auxiliary outlet pipe is connected to the compressor.

[0050] In a second aspect, an embodiment of the present application provides a heat source unit, comprising:

[0051] A housing, constituting the outer shape of the heat source unit;

[0052] A compressor, compressing the refrigerant into a refrigerant circulation loop, the compressor having an exhaust port for discharging the refrigerant and an air return port for recovering the refrigerant;

[0053] A heat dissipation component, the heat dissipation component comprising:

[0054] A heat dissipation body, the heat dissipation body having a part of the flow path of the refrigerant circulation circuit, the main component of the heat dissipation body is aluminum, and the heat dissipation body is thermally connected to the target cooling member,

[0055] A heat dissipation pipe, the heat dissipation pipe comprising: a first adapter portion, a first end of the first adapter portion is connected to the heat dissipation body, the main component of the first adapter portion is aluminum, and a second adapter portion, the second adapter portion is arranged at the second end of the first adapter portion, the main component of the second adapter portion is copper;

[0056] A heat source heat exchanger, wherein the heat source heat exchanger has a near compressor side and a far compressor side, the refrigerant between the near compressor side and the far compressor side exchanges heat with the heat source, the far compressor side of the heat source heat exchanger is connected to the second adapter via a first steel pipeline, and the near compressor side of the heat source heat exchanger is connected to the exhaust port of the compressor via a second steel pipeline.

[0057] In some embodiments, a flow path switching device is further included, wherein the flow path switching device includes:

[0058] A first interface connected to an exhaust port of the compressor via an exhaust pipe;

[0059] A second interface, which is connected to the compressor-proximal side of the heat source heat exchanger via the second pipeline;

[0060] A third interface, which is connected to the gas outlet of the heat source unit via the gas outlet pipe; and

[0061] The fourth interface is connected to the return air port of the compressor via a return air pipe.

[0062] In some embodiments, the heat source unit comprises:

[0063] Electric control box;

[0064] An electronic control unit, comprising a circuit board and a plurality of electronic components arranged on the circuit board;

[0065] A partition plate is arranged in the electric control box body to divide the internal space of the electric control box body into a first cavity and a second cavity, and the circuit board and the plurality of electronic components are arranged in the first cavity;

[0066] The heat dissipation body is disposed in the second cavity, the partition plate includes a clearance hole, a heat dissipation plate is disposed in the clearance hole, and two plate surfaces are respectively thermally connected to the plurality of electronic components and the heat dissipation body;

[0067] The heat dissipation pipe extends from the second cavity outside the electric control box body, wherein the second adapter is located outside the electric control box body and is connected to the first pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0068] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0069] Figure 1 This is a schematic structural diagram of an embodiment of a heat source unit of the present application;

[0070] Figure 2 A schematic diagram of the structure of the heat dissipation pipe and the first pipeline of the heat dissipation device of the present application;

[0071] Figure 3 Schematic diagrams of three embodiments of the inner tube surface coating of the first pipeline of the present application;

[0072] Figure 4 Schematic diagrams of three embodiments of the inner tube surface coating and the outer tube surface coating of the first pipeline of the present application;

[0073] Figure 5 Schematic diagrams of three embodiments of the present application in which the sleeve of the first pipeline is sleeved on the outer pipe surface of the first pipe section;

[0074] Figure 6 Schematic diagrams of three embodiments of the present application in which the sleeve of the first pipeline is sleeved on the outer pipe surface of the first pipe section;

[0075] Figure 7 Schematic diagrams of three embodiments of the present application in which the sleeve of the first pipeline is sleeved on the outer pipe surface of the first pipe section;

[0076] Figure 8 Schematic diagrams of three embodiments of the present application in which the sleeve of the first pipeline is nested in the inner pipe surface of the first pipe section;

[0077] Fig. 9 Schematic diagrams of three embodiments of the present application in which the sleeve of the first pipeline is nested in the inner pipe surface of the first pipe section;

[0078] Fig.10 Schematic diagrams of three embodiments of the present application in which the sleeve of the first pipeline is nested in the inner pipe surface of the first pipe section;

[0079] Fig.11 This is a schematic structural diagram of an embodiment of a heat dissipation component of a heat source unit of the present application;

[0080] Fig.12 A schematic structural diagram of the heat dissipation component of the heat source unit of the present application from another perspective;

[0081] Fig.13This is a schematic structural diagram of another embodiment of the heat dissipation assembly of the heat source unit of the present application;

[0082] Fig.14 It is a partial structural schematic diagram of another embodiment of the heat dissipation component and the electronic control unit of the heat source unit of the present application;

[0083] Fig.15 This is a schematic diagram of the assembly structure of another embodiment of the heat dissipation component and the electric control box of the heat source unit of the present application;

[0084] Fig.16 A schematic diagram of the assembly structure of the heat dissipation component and the electric control box of another embodiment of the heat source unit of the present application from another perspective;

[0085] Fig.17 A schematic diagram of the partial structure of the heat dissipation component and the electronic control unit of the heat source unit of the present application;

[0086] Fig.18 for Fig.17 A partial enlarged view of the middle A;

[0087] Fig.19 It is a partial structural schematic diagram of the electric control box of the heat source unit of the present application;

[0088] Fig. 20 This is a partial structural schematic diagram of the electric control box of the heat source unit of the present application from another perspective.

[0089] Description of Figure Numbers:

[0090] 1000, heat source unit; 100, heat dissipation component; 10, heat dissipation body; 11, plate tube; 11a, microchannel; 111, first plate body; 112, second plate body; 20, heat dissipation pipe; 21, first adapter; 22, second adapter; 23, connection; 24, header; 241, first header; 242, second header; 20a, main inlet; 20b, main outlet; 20c, auxiliary inlet; 20d, auxiliary outlet; 200, first pipeline; 201, third adapter; 2011, first sub-pipe; 2012, transition sub-pipe; 2013, second sub-pipe; 202, main pipe; 2021, first pipe section; 2022, transition pipe section; 2023, second pipe section; 300, shell; 400, compressor; 401, exhaust port; 402, return air port; 400 A, heat source heat exchanger; 400a, near compressor side; 400b, far compressor side; 500, liquid side outlet pipe; 500A, liquid side stop valve; 600, gas side outlet pipe; 600A, gas side stop valve; 700, second pipeline; 700A, return air pipe; 800, flow path switching device; 801, first interface; 802, second interface; 803, third interface; 804, fourth interface; 900, electric control box body; 901, box body; 902, cover plate; 900A, electric control unit; 900a, circuit board; 900b, electronic components; 900B, partition plate; 900c, make way hole; 900d, ventilation hole; 900C, mounting block; 900D, gas-liquid separator; 900E, filter; 900F, exhaust pipe; 900G, expansion valve; 900H, heat sink.

[0091] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0092] In order to make the objectives, technical solutions and advantages of the present application clearer, the following part will further describe the embodiments of the present application in detail in conjunction with the accompanying drawings.

[0093] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0094] In the description of the present application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0095] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0096] HVAC equipment such as air conditioners have a built-in heat exchange system, which includes a refrigerant circulation loop that is interconnected through the refrigerant circulation loop to ensure that the refrigerant can flow smoothly throughout the system, thereby completing the cooling or heating process.

[0097] Air conditioners and other HVAC equipment are equipped with a heat exchange system, and the core component of this system is the refrigerant circulation loop. The refrigerant circulation loop connects the various parts to each other, ensuring that the refrigerant can flow smoothly and efficiently throughout the system. This circulation process is the key to achieving cooling or heating functions.

[0098] In the related art, the pipes of the refrigerant circulation loop are usually made of widely used copper. However, in actual applications, copper pipes may be affected by environmental factors such as temperature, humidity, and mechanical stress under long-term use, causing changes in their performance and even leakage, thereby affecting the normal operation of the entire heat exchange system.

[0099] To solve the above problems, please refer to Figure 1 and Figure 2 In the first aspect of the present application, a heat dissipation device is proposed, which is a part of a refrigerant circulation loop. The heat dissipation device includes a first pipeline 200 and a heat dissipation component 100 connected to the first pipeline 200. The first pipeline 200 is a part of the refrigerant circulation loop, and its main component is steel. In this way, the first pipeline 200 is completely made of steel, or the proportion of steel material is relatively large, and it is the main part of the first pipeline 200.

[0100] The heat dissipation assembly 100 includes a heat dissipation body 10 and a heat dissipation pipe 20. The heat dissipation body 10 also bears part of the flow path of the refrigerant circulation, and its main material is aluminum to utilize its excellent thermal conductivity. The heat dissipation body 10 is connected to the target cooling element by thermal conduction to ensure that heat can be efficiently transferred.

[0101] Among them, the target cooling part is a heating part on the refrigerant circulation loop or an electronic component 900b of the electronic control unit 900A. In the refrigerant circulation loop, the heating part generally refers to those components that generate heat during operation. Due to their working characteristics, these components consume electrical energy and convert it into thermal energy, thus becoming a heat source in the system, such as the compressor, four-way valve, expansion valve, etc. in the air conditioner, and the electronic component 900b of the electronic control unit 900A will also generate heat after long-term use. In this way, the heat dissipation body 10 is used to dissipate heat and cool the target cooling part.

[0102] The heat dissipation pipe 20 includes a first adapter 21 and a second adapter 22. The first end of the first adapter 21 is connected to the heat dissipation body 10. The main component of the first adapter 21 is aluminum. Since the two materials are the same, it is convenient to connect with the heat dissipation body 10. The second adapter 22 is arranged at the second end of the first adapter 21. The main component of the second adapter 22 is copper. It is worth noting that the first adapter 21 and the second adapter 22 are connected by resistance welding. Resistance welding uses the resistance heat generated by the current passing through the workpiece and the contact surface of the workpiece to heat the weldment to a molten or plastic state, and then applies pressure to make the weldment achieve atomic bonding. This method ensures that the connection between the first adapter 21 and the second adapter 22 is firm and reliable, while avoiding welding problems caused by material differences. Among them, the first pipeline 200 is connected to the second adapter 22.

[0103] In some structural forms, the first end of the first pipeline 200 is connected to the second adapter 22, and the second end of the first pipeline 200 is connected to the heat source heat exchanger 400A of the refrigerant circulation loop. It is understandable that in a heat exchange system such as an air conditioner, the heat source heat exchanger 400A can be used as a condenser of an outdoor unit. When the system is running, the condenser acts as a heat source heat exchanger 400A, and its main function is to cool and liquefy the high-temperature and high-pressure refrigerant gas after absorbing heat from the indoor room, while releasing a large amount of heat to the external environment. In this process, the refrigerant presents a medium-pressure and medium-temperature state. Subsequently, this part of the medium-pressure and medium-temperature refrigerant flow flows along the direction of the first pipeline 200, smoothly enters the second adapter 22, and then enters the heat dissipation body 10 to cool the target cooling part.

[0104] A heat dissipation device proposed in the embodiment of the present application constitutes part of the refrigerant circulation loop, and the device is mainly composed of a first pipeline 200 and a heat dissipation assembly 100. The first pipeline 200 is an important channel for the circulation of the refrigerant, and its main body is made of steel. This change not only improves the structural strength and corrosion resistance of the pipeline, but also utilizes the good seismic resistance of steel to ensure the stable operation of the system. In addition, the thermal insulation performance of steel is better than that of copper pipes, which effectively avoids unnecessary cooling of the refrigerant during the transmission process, thereby improving the overall efficiency of the system.

[0105] In addition, the heat dissipation component 100 integrates the heat dissipation body 10 and the heat dissipation pipe 20. The heat dissipation body 10 is another flow channel for the refrigerant. Aluminum is selected as the main material. With its excellent thermal conductivity, it can quickly conduct and dissipate the heat generated by the heating element. At the same time, the heat dissipation body 10 is connected to the target cooling part by thermal conduction, which further enhances the heat dissipation effect. At the same time, the design of the heat dissipation pipe 20 realizes the transition and connection between materials. One end of it, namely the first adapter 21, is directly connected to the heat dissipation body 10. Both are made of the same material, aluminum, to ensure good connection compatibility. The other end, namely the second adapter 22, is made of copper. This design enables it to be easily and stably connected to the first pipeline 200 (steel), avoiding the connection problem caused by material mismatch. In summary, the heat dissipation device in the embodiment of the present application can not only improve the stability of the pipeline of the refrigerant circulation loop, but also ensure the stability of the pipeline connection between the heat dissipation device and the refrigerant circulation loop.

[0106] Reference Figure 2 In one embodiment of the present application, the portion where the first pipeline 200 is connected to the second adapter 22 is defined as the third adapter 201, and the main component of the third adapter 201 is steel. This ensures that the material of the connection portion is consistent with the first pipeline 200, thereby improving the reliability and stability of the connection. Since the main component of the first pipeline 200 is steel, the third adapter 201 is also made of steel, which can effectively avoid problems such as insufficient connection strength or welding difficulties caused by material differences.

[0107] Furthermore, the main component of the first pipeline 200 is stainless steel, and the main component of the third adapter part 201 is stainless steel. In this way, since the first pipeline 200 and the third adapter part 201 are both made of stainless steel, the connection between the two becomes tighter and more stable. The welding performance between stainless steel materials is excellent, which can ensure that the connection part 23 still maintains good sealing and strength when it is subjected to the flow of high-pressure and high-temperature refrigerant. At the same time, stainless steel pipes have lower material costs. By adopting stainless steel pipes, it is beneficial to reduce costs as a whole, and the use of stainless steel pipes can also effectively avoid rusting of pipelines and improve pipeline reliability. Of course, the first pipeline 200 can also be made of carbon steel, and the embodiments of the present application do not make specific limitations on this.

[0108] In another embodiment of the present application, the portion where the first pipeline 200 is connected to the second adapter 22 is defined as a third adapter 201, and the main component of the third adapter 201 is copper. Among them, since the copper material has good ductility and plasticity, this enables the third adapter 201 to flexibly adapt to various complex connection requirements during the design and manufacturing process. Through fine processing and molding, it can be ensured that the connection between the third adapter 201 and the first pipeline 200 and the second adapter 22 is both tight and reliable, thereby avoiding the risk of refrigerant leakage and connection failure. In addition, the copper material also has a certain corrosion resistance, which can resist the corrosion effects that may be caused by the refrigerant and the external environment to a certain extent.

[0109] Reference Figure 3 In a connection mode between the first pipeline 200 and the second adapter 22, the first pipeline 200 includes a main pipe 202, the main component of the main pipe 202 is steel, and the third adapter 201 is a coating arranged on the inner pipe surface or the outer pipe surface of the first end of the main pipe 202, and the main component of the coating is copper. Since the heat dissipation device needs to withstand the circulating pressure and temperature fluctuations of the refrigerant during operation, if the connection part 23 is unstable, it is easy to cause refrigerant leakage or connection failure, thereby affecting the normal operation of the entire system. The copper coating has excellent adhesion and durability due to its good ductility and close bonding with the substrate (such as steel), and is not easy to fall off during long-term use, thereby ensuring the firmness of the connection between the main pipe 202 and the second adapter 22, and can effectively resist the influence of these external factors and maintain the stability and reliability of the connection.

[0110] Furthermore, the main pipe section 202 includes a first pipe section 2021, a transition pipe section 2022 and a second pipe section 2023 which are connected in sequence. The coating can only cover the inner pipe surface or the outer pipe surface of the three pipe sections, which can save coating materials and save costs. Of course, the coating can also cover the inner pipe surface and the outer pipe surface of the three pipe sections at the same time. For example, Figure 4 , so as to achieve flexibility of connection. The first pipe section 2021 is closer to the second adapter 22 than the second pipe section 2023. The inner diameter of the first pipe section 2021 is larger or smaller than the inner diameter of the second pipe section 2023, or the inner diameters of the first pipe section 2021, the transition pipe section 2022 and the second pipe section 2023 are the same, depending on the specific application scenario and requirements. This design enables the main pipe section 202 to adapt to different flow and pressure requirements, thereby improving the adaptability and flexibility of the heat dissipation device. In particular, when the inner diameter of the first pipe section 2021 is larger or smaller than the inner diameter of the second pipe section 2023, the flow resistance of the fluid in the main pipe section 202 can be changed to ensure that the refrigerant can be stably transported to the heat dissipation area.

[0111] Reference Figures 5 to 7In another connection method between the first pipeline 200 and the second adapter 22, the first pipeline 200 includes a main pipe 202, the main pipe 202 is mainly composed of steel, and the third adapter 201 is a sleeve sleeved on the inner pipe surface or the outer pipe surface of the first end of the main pipe 202, and the end of the sleeve away from the main pipe 202 is sleeved on the inner pipe surface or the outer pipe surface of the second adapter 22, and the main component of the sleeve is copper. The third adapter 201 in the form of such a sleeve also shows flexibility in design and installation. It can be customized according to the size and shape of the main pipe 202 to ensure a perfect match with the main pipe 202, and it is also convenient for subsequent maintenance and replacement. This design not only meets the requirements of connection stability and heat dissipation performance, but also takes into account cost-effectiveness and operability, and provides an efficient and reliable solution for the connection between the first pipeline 200 and the second adapter 22.

[0112] In the embodiment where the sleeve is sleeved on the outer pipe surface of the first pipe section 2021, the main pipe section 202 includes the first pipe section 2021, the transition pipe section 2022 and the second pipe section 2023 connected in sequence, the first pipe section 2021 is closer to the second adapter 22 than the second pipe section 2023, and the sleeve is sleeved on the outer pipe surface of the first pipe section 2021. The inner diameter of the first pipe section 2021 is greater than or less than the inner diameter of the second pipe section 2023, or the inner diameters of the first pipe section 2021, the transition pipe section 2022 and the second pipe section 2023 are the same.

[0113] In this way, when the inner diameter of the first pipe section 2021 is larger than that of the second pipe section 2023, the fluid will encounter less flow resistance when flowing through the first pipe section 2021, which is conducive to the smooth transportation of refrigerant or other media; on the contrary, when the inner diameter of the first pipe section 2021 is smaller than that of the second pipe section 2023, the fluid pressure can be increased to ensure that the medium can still maintain a stable flow state in a complex environment. When the inner diameters of the three are the same, the most direct fluid channel is provided, simplifying fluid management. At the same time, the sleeve and the first pipe section 2021 can be tightly fitted by welding to ensure the firmness and sealing of the connection, effectively preventing the leakage of refrigerant or other media, and improving the safety and reliability of the system.

[0114] Further, the sleeve includes a first sub-tube 2011, a transition sub-tube 2012 and a second sub-tube 2013 connected to each other, and the first sub-tube 2011 is farther away from the second adapter 22 than the second sub-tube 2013. The inner diameter of the first sub-tube 2011 is larger or smaller than the inner diameter of the second sub-tube 2013, or the inner diameters of the first sub-tube 2011, the transition sub-tube 2012 and the second sub-tube 2013 are the same. When the inner diameter of the first sub-tube 2011 is larger than the inner diameter of the second sub-tube 2013, the fluid will encounter a smaller flow resistance when flowing through the first sub-tube 2011, which is conducive to the smooth transportation of the refrigerant or other medium; on the contrary, when the inner diameter of the first sub-tube 2011 is smaller than the inner diameter of the second sub-tube 2013, the fluid pressure can be increased to ensure that the medium can still maintain a stable flow state in a complex environment. When the inner diameters of the three are the same, the most direct fluid channel is provided, simplifying the fluid management. In addition, the design and manufacture of the transition sub-pipe 2012, which serves as a bridge connecting the first sub-pipe 2011 and the second sub-pipe 2013, have also been carefully considered. The transition sub-pipe 2012 not only ensures a smooth transition between the sub-pipes, but also further reduces the energy loss of the fluid during the flow process by optimizing its shape and size, thereby improving the overall fluid efficiency.

[0115] Reference Figures 8 to 10 In the embodiment where the sleeve is nested on the inner pipe surface of the first pipe section 2021, the main pipe section 202 includes the first pipe section 2021, the transition pipe section 2022 and the second pipe section 2023 which are connected in sequence. The first pipe section 2021 is closer to the second adapter 22 than the second pipe section 2023, and the sleeve is nested on the inner pipe surface of the first pipe section 2021. The inner diameter of the first pipe section 2021 is greater than or less than the inner diameter of the second pipe section 2023, or the inner diameters of the first pipe section 2021, the transition pipe section 2022 and the second pipe section 2023 are the same. Similar to the embodiment where the sleeve is sleeved on the outer pipe surface, the inner diameter of the first pipe section 2021 can be greater than, less than or equal to the inner diameter of the second pipe section 2023. This design flexibility ensures that the main pipe section 202 can adapt to the needs of different application scenarios. When the inner diameter of the first pipe section 2021 is larger than that of the second pipe section 2023, the fluid will encounter less flow resistance when flowing through the first pipe section 2021, which is conducive to the smooth transportation of refrigerant or other media. On the contrary, when the inner diameter of the first pipe section 2021 is smaller than that of the second pipe section 2023, the fluid pressure can be increased to ensure that the medium can still maintain a stable flow state in a complex environment. When the inner diameters of the three are the same, the most direct fluid channel is provided, simplifying fluid management.

[0116] Similarly, in this embodiment, the casing is also designed to include a first sub-pipe 2011, a transition sub-pipe 2012 and a second sub-pipe 2013 connected to each other, wherein the first sub-pipe 2011 is further away from the second adapter 22 than the second sub-pipe 2013. This design not only enhances the adaptability and flexibility of the casing, but also further optimizes fluid management by adjusting the inner diameter of the sub-pipe. The transition sub-pipe 2012 serves as a bridge connecting the first sub-pipe 2011 and the second sub-pipe 2013, ensuring a smooth transition between the sub-pipes and reducing the energy loss of the fluid during the flow process.

[0117] Reference Fig.11 and Fig.12 In some structural forms, the heat dissipation body 10 includes at least one plate tube 11, and each plate tube 11 includes at least one layer of microchannels 11a. Such a design allows the refrigerant to flow in a smaller space, thereby increasing the heat dissipation area and improving the heat dissipation efficiency. The use of the microchannels 11a also promotes heat exchange between the refrigerant and the heat dissipation body 10, so that heat can be taken away more quickly, ensuring efficient and stable operation of the system.

[0118] Furthermore, the heat dissipation body 10 is constructed as a plate tube 11, and the plate tube 11 includes a plurality of microchannels 11a. This design not only greatly increases the heat dissipation area, but also realizes a more efficient heat exchange between the refrigerant and the heat dissipation body 10 through the precise layout of the microchannels 11a. The heat dissipation pipe 20 includes a connecting portion 23, which is constructed into a hollow flat shape for the plate tube 11 to be inserted, and the main component of the connecting portion 23 is aluminum. This shape perfectly fits the shape of the plate tube 11, so that the plate tube 11 can be easily inserted and firmly connected. It is worth noting that the main material of the connecting portion 23 is aluminum, which not only has good thermal conductivity, but also has the characteristics of light weight and corrosion resistance, which further improves the overall performance of the heat dissipation pipe 20.

[0119] In addition, the first adapter 21 is designed as a circular tube, and its first end is closely connected to the connection portion 23 of the heat dissipation pipe 20, ensuring that the refrigerant can flow smoothly between the two. The second adapter 22 is also designed as a circular tube and is coaxially arranged with the first adapter 21. Such a layout not only simplifies the system structure, but also improves the stability and reliability of the system.

[0120] Reference Fig.13 and Fig.14In some embodiments, the number of heat dissipation pipes 20 is set to two, which are respectively connected to the two ends of the heat dissipation body 10. This design brings significant beneficial effects. First, the two heat dissipation pipes 20 and the connecting parts 23, the first adapter part 21 and the second adapter part 22 included therein provide stable connection and support for the two ends of the plate tube 11, ensuring the smooth flow of the refrigerant in the heat dissipation body 10. The connecting part 23 is configured as a hollow flat shape, which perfectly fits the shape of the plate tube 11, so that the two ends of the plate tube 11 can be easily inserted and firmly connected, reducing the risk of refrigerant leakage. Secondly, the connection of the two first adapter parts 21 with the two connecting parts 23 respectively further enhances the connection strength between the heat dissipation body 10 and other parts of the system, ensuring the overall stability of the system. The setting of the two second adapter parts 22 realizes the flexible connection between the heat dissipation body 10 and the first pipeline 200 and the liquid side outlet pipe 500. Among them, the connection of a second adapter part 22 with the first pipeline 200 enables the refrigerant to circulate smoothly between the heat dissipation body 10 and other cooling parts of the system. Another second adapter 22 is connected to the steel liquid side outlet pipe 500, which serves as the liquid side outlet of the refrigerant circulation loop, ensuring that the refrigerant cooled in the heat source unit 1000 can be smoothly discharged from the system. In summary, by setting two heat dissipation pipes 20 and rationally arranging the connection part 23, the first adapter 21 and the second adapter 22, this embodiment not only improves the connection strength and stability between the heat dissipation body 10 and other parts of the system, but also ensures the smooth circulation of the refrigerant between the heat dissipation body 10 and the system, thereby improving the operating efficiency and reliability of the entire refrigerant circulation loop.

[0121] Reference Fig.13 and Fig.14In an optional design scheme, the heat dissipation body 10 is constructed to include a plurality of plate tubes 11, the plate surfaces of which are all located on the same plane and are arranged in sequence in a direction parallel to the plane. Such a layout not only makes full use of the space, but also increases the heat dissipation area, thereby improving the heat dissipation efficiency. A key component, a header 24, is introduced into the heat dissipation connection 20, the main component of which is aluminum and has good thermal conductivity. One end of the plurality of plate tubes 11 is cleverly inserted into the tube cavity of the header 24. Such a connection method is not only stable, but also ensures the smooth flow of the refrigerant between the plate tube 11 and the header 24. The design of the header 24 enables the plurality of plate tubes 11 to distribute and collect the refrigerant as a whole, thereby improving the integration and operation efficiency of the system. In addition, the first adapter 21 is constructed in a round tube shape and is closely connected to the header 24. Such a design ensures that the refrigerant can flow smoothly from the header 24 into the first adapter 21 and then flow to other parts of the system. The second adapter 22 also adopts a circular tubular design and is coaxially arranged with the first adapter 21. Such a layout not only simplifies the system structure, but also improves the stability and reliability of the system. In summary, by constructing the heat dissipation body 10 into a structure of multiple plate tubes 11, introducing the key component of the manifold 24, and rationally arranging the first adapter 21 and the second adapter 22, the design scheme has shown significant beneficial effects in improving heat dissipation efficiency and enhancing system stability and reliability. At the same time, such a design also facilitates the installation and maintenance of the system and reduces operating costs.

[0122] Reference Fig.13 and Fig.14In another optional solution, the number of heat dissipation pipes 20 is two, which are respectively connected to the two ends of the heat dissipation body 10, providing stable support and connection for the heat dissipation body 10, ensuring the effective operation of the heat dissipation body 10 in the refrigerant circulation loop. The two heat dissipation pipes 20 include two headers 24, namely the first header 24124 and the second header 24224. Such a design enables the two ends of multiple plate tubes 11 to be inserted into the two headers 24 respectively. The first header 24124 is closer to the heat source heat exchanger 400A of the refrigerant circulation loop than the second header 24224. Such a layout is conducive to the rapid transfer of heat and the improvement of heat dissipation efficiency. Through the arrangement of the first header 24124 and the second header 24224, multiple plate tubes 11 are effectively connected in series to form an integral heat dissipation structure, which improves the heat dissipation area and heat dissipation efficiency. The two first adapters 21 are closely connected to the two connecting parts 23 respectively, ensuring that the refrigerant can flow smoothly between the heat dissipation body 10 and other parts of the system. At the same time, the setting of the two second adapters 22 also realizes the flexible connection between the heat dissipation body 10 and the first pipeline 200 and the liquid side outlet pipe 500. One of the second adapters 22 is connected to the first pipeline 200, so that the refrigerant can flow out of the heat dissipation body 10 and enter other cooling parts of the system. The other second adapter 22 is connected to the liquid side outlet pipe 500, which serves as the liquid side outlet of the refrigerant circulation loop to ensure that the refrigerant cooled in the heat source unit 1000 can be discharged smoothly from the system. In summary, by setting two heat dissipation pipes 20 and rationally arranging the first header 24124 and the second header 24224, the first adapter 21 and the second adapter 22, this design not only improves the heat dissipation efficiency, but also enhances the stability and reliability of the system. At the same time, such a design also simplifies the structure of the system, reduces the difficulty of installation and maintenance, and improves the overall performance of the system.

[0123] Reference Figures 15 to 18 In another optional solution, the number of the heat dissipation pipes 20 is four, and the four heat dissipation pipes 20 include a main inlet pipe 20a, a main outlet pipe 20b, an auxiliary inlet pipe 20c and an auxiliary outlet pipe 20d. The main inlet pipe 20a and the auxiliary outlet pipe 20d are arranged side by side and located on the same side of the heat dissipation body 10, and the main outlet pipe 20b and the auxiliary inlet pipe 20c are arranged side by side and located on the other side of the heat dissipation body 10, so as to facilitate the connection of the pipes.

[0124] Each plate tube 11 at least includes a first plate body 111 and a second plate body 112 that are attached to each other. The microchannel 11a of the first plate body 111 is connected to the main inlet pipe 20a and the main outlet pipe 20b respectively. The second adapter 22 of the main inlet pipe 20a is connected to the first pipeline 200, and the second adapter 22 of the main outlet pipe 20b is connected to the liquid side outlet pipe 500. The liquid side outlet pipe 500 has a liquid side outlet of the refrigerant circulation loop. In this way, the refrigerant enters the main inlet pipe 20a from the first pipeline 200, passes through the microchannel 11a of the first plate body 111, flows out from the main outlet pipe 20b, and finally enters the liquid side outlet pipe 500, completing a heat dissipation cycle. This path ensures that the refrigerant can effectively take away heat from the heat source unit 1000.

[0125] At the same time, the microchannel 11a of the second plate body 112 is connected to the auxiliary road inlet pipe 20c and the auxiliary road outlet pipe 20d respectively, forming an auxiliary road refrigerant flow path. In this path, the refrigerant flow of the auxiliary road inlet pipe 20c is regulated by the expansion valve and converted from a medium-pressure medium-temperature state to a low-pressure low-temperature state. After such a refrigerant flow enters the microchannel 11a of the second plate body 112, it can not only absorb heat from the external environment, but also indirectly absorb a small amount of heat from the medium-pressure medium-temperature refrigerant flow in the microchannel 11a of the first plate body 111, thereby achieving supercooling of the microchannel 11a of the first plate body 111, thereby improving the heat dissipation efficiency. Subsequently, the gasified refrigerant flows out from the auxiliary road outlet pipe 20d, and as a refrigerant source for jet enthalpy increase, the compressor 400 is jet enthalpy increase. In this process, the compressor 400 obtains additional refrigerant flow, improves its compression efficiency, and thus improves the refrigeration capacity of the air-conditioning system. In summary, by increasing the number of heat dissipation pipes 20, optimizing the layout, introducing the expansion valve 900G and the specific refrigerant flow path design, and combining the heat conduction heat dissipation method of the first plate 111 microchannel 11a to the target cooling part, this solution not only significantly improves the heat dissipation efficiency, but also improves the refrigeration capacity of the air conditioning system through the jet enthalpy increase technology. Such a design not only meets the heat dissipation requirements, but also optimizes the overall performance of the air conditioning system.

[0126] Reference Figure 1 , Fig.19 as well as Fig. 20 The present application also proposes a heat source unit 1000, which may be a heating and ventilation device such as an air conditioner. The air conditioner includes an outdoor unit and an indoor unit. The following is an example in which the heat source unit 1000 is an outdoor unit of the air conditioner. The heat source unit 1000 includes a housing 300, a compressor 400, a heat dissipation assembly 100, a liquid side outlet pipe 500, and a gas side outlet pipe 600.

[0127] The shell 300 forms the outer shape of the heat source unit 1000, and also provides necessary protection for the internal compressor 400 and the heat dissipation component 100, thereby preventing the external environment from corroding the internal parts. The compressor 400 compresses the refrigerant into the refrigerant circulation loop, and the compressor 400 has an exhaust port 401 for discharging the refrigerant and a return port 402 for recovering the refrigerant. As the core component of the heat source unit 1000, the compressor 400 bears the heavy responsibility of compressing the refrigerant, ensuring the continuous flow of the refrigerant in the circulation loop. The setting of the exhaust port 401 and the return port 402 provides a channel for the discharge and recovery of the refrigerant, thereby ensuring the continuity and stability of the refrigerant circulation. One end of the liquid side outlet pipe 500 is connected to the exhaust port 401, and the other end is provided with a liquid side stop valve 500A, which is used to control the liquid path between the liquid side outlet pipe 500 and the indoor unit. One end of the gas outlet pipe 600 is connected to the gas return port 402, and the other end is provided with a gas stop valve 600A, which is used to control the on-off of the gas path between the gas outlet pipe 600 and the indoor unit.

[0128] The heat dissipation assembly 100 includes a heat dissipation body 10, a heat dissipation pipe 20, and a heat source heat exchanger 400A. The heat dissipation body 10 has a part of the flow path of the refrigerant circulation circuit. The main component of the heat dissipation body 10 is aluminum. The heat dissipation body 10 is thermally connected to the target cooling element. The heat dissipation body 10 uses aluminum as the main material. Due to its good thermal conductivity, it can quickly extract heat from the target cooling element.

[0129] The heat dissipation pipe 20 includes a first adapter portion 21 and a second adapter portion 22. The first end of the first adapter portion 21 is connected to the heat dissipation body 10. The main component of the first adapter portion 21 is aluminum. The first adapter portion 21 uses the same aluminum material as the heat dissipation body 10, which can not only ensure the stability of the connection with the heat dissipation body 10, but also ensure the continuity and efficiency of heat conduction. The second adapter portion 22 is arranged at the second end of the first adapter portion 21, and the main component of the second adapter portion 22 is copper.

[0130] The heat source heat exchanger 400A has a near compressor side 400a and a far compressor side 400b, and the refrigerant and the heat source exchange heat between the near compressor side 400a and the far compressor side 400b. The far compressor side 400b of the heat source heat exchanger 400A is connected to the second adapter 22 via a first steel pipeline 200, and the near compressor side of the heat source heat exchanger 400A is connected to the exhaust port 401 of the compressor 400 via a second steel pipeline 700.

[0131] For example, in the refrigeration operation of the air conditioner, the refrigerant circulates in the above-mentioned refrigerant circulation loop as a heat exchange medium, the indoor heat exchanger of the indoor unit is an evaporator, the heat source heat exchanger 400A is a condenser, and the heat source heat exchanger 400A is arranged on the liquid side outlet pipe 500. The compressor 400 inhales the low-temperature and low-pressure refrigerant vapor generated in the evaporator through the return air port 402, and outputs the high-temperature and high-pressure gaseous refrigerant at the exhaust port 401 through mechanical compression. The high-temperature and high-pressure gaseous refrigerant exchanges heat with the outdoor air in the condenser and condenses into a liquid refrigerant at room temperature and high pressure. The liquid refrigerant passes through the throttling element and becomes a low-temperature and low-pressure gas-liquid mixture. After the low-temperature and low-pressure gas-liquid mixture enters the evaporator, the liquid refrigerant evaporates rapidly under low-pressure conditions, absorbs heat from the air and becomes a gaseous refrigerant. In this way, the circulation of the heat exchange medium in the above-mentioned refrigerant circulation loop is completed.

[0132] Since the first pipeline 200 and the second pipeline 700 are both steel pipes, not only the material cost is low, but also the processing is simpler, which is conducive to improving production efficiency. In addition, the steel pipe also has better anti-corrosion performance than the copper pipe, thereby effectively improving the reliability of the outdoor unit. In addition, more importantly, the second adapter 22 is mainly composed of copper and is connected to the far compressor side 400b of the heat source exchanger via the steel first pipeline 200, which effectively avoids the welding problem caused by material mismatch, not only enhances the stability of the connection, but also improves the overall durability of the system, and effectively avoids problems such as refrigerant leakage caused by unstable connection.

[0133] Further, the heat source unit 1000 also includes a flow switching device, and the flow switching device 800 includes a first interface 801, a second interface 802, a third interface 803 and a fourth interface 804. The first interface 801 is connected to the exhaust port 401 of the compressor 400 via the exhaust pipe 900F, and the second interface 802 is connected to the near compressor side 400a of the heat source heat exchanger 400A via the second pipeline 700. Such a setting realizes the exhaust conduction between the compressor 400 and the heat source heat exchanger 400A, ensuring that the high-pressure refrigerant can smoothly enter the heat source heat exchanger 400A for heat exchange. The third interface 803 is connected to the gas side outlet of the heat source unit 1000 via the gas side outlet pipe 600 to realize the transmission of gaseous refrigerant with the indoor unit. The fourth interface 804 is connected to the return air port 402 of the compressor 400 via the return air pipe 700A, ensuring that the low-pressure refrigerant can smoothly flow back to the compressor 400 and maintain the continuity of the refrigerant cycle. It is understandable that the flow switching device can specifically be a four-way valve. As a commonly used flow control element, the four-way valve can flexibly switch the air conditioner's cooling, heating or defrosting functions by changing the flow direction of the heat exchange medium.

[0134] In addition, the heat source unit 1000 also includes a gas-liquid separator 900D and a filter 900E, and the gas-liquid separator 900D is arranged between the fourth interface 804 and the return air port 402 of the compressor 400. It can be understood that the gas-liquid separator 900D is used to separate the water vapor in the heat exchange medium to reduce the liquid content of the heat exchange medium entering the compressor 400, so as to improve the energy efficiency of the compressor 400. The filter 900E is arranged between the third interface 803 and the gas side outlet pipe 600. By setting the filter 900E in this position, these impurities and particulate matter can be effectively prevented from entering the gas side outlet pipe 600, thereby protecting other parts of the system from damage. At the same time, this also ensures that the refrigerant can remain clean and pure during the circulation process, thereby improving the operating efficiency and stability of the system.

[0135] Combined with reference Figures 15 to 17 Furthermore, the heat source unit 1000 includes an electric control box body 900, an electric control unit 900A and a partition plate 900B. The electric control box body 900 is composed of a box body 901 and a cover plate 902. As the main structure of the electric control box body 900, sufficient internal space is provided to accommodate the electric control unit 900A and the heat dissipation component 100. The cover plate 902 is covered on the box body 901 and fixed by hanging or other connection methods. This design not only enhances the overall structural strength of the electric control box body 900, but also provides a convenient inspection and maintenance channel, so that technicians can easily open the cover plate 902 to inspect and maintain the inside of the box body.

[0136] The electric control unit 900A is the control core of the heat source unit 1000, mainly including a circuit board 900a and a plurality of electronic components 900b arranged on the circuit board 900a. These electronic components 900b are responsible for controlling the various functions of the heat source unit 1000, such as starting, running, monitoring, etc. The circuit board 900a, as a carrier of the electronic components 900b, provides a stable electrical connection and signal transmission path. The electronic components 900b include but are not limited to resistors, capacitors, transistors, integrated circuits, etc., which work together to achieve accurate control of the heat source unit 1000.

[0137] The partition plate 900B is arranged in the electric control box body 900, and the internal space of the electric control box body 900 is divided into a first cavity and a second cavity. The circuit board 900a and a plurality of electronic components 900b are arranged in the first cavity, and the heat dissipation body 10 is arranged in the second cavity. The partition plate 900B includes a clearance hole 900c, a heat dissipation plate 900H is arranged in the clearance hole 900c, and the two plate surfaces are respectively thermally connected to the plurality of electronic components 900b and the heat dissipation body 10. Thus, effective heat transfer is achieved. This design not only improves the heat dissipation efficiency, but also ensures the stable operation of the electronic components 900b. The heat dissipation pipe 20 extends from the second cavity to the outside of the electric control box body 900, wherein the second adapter 22 is located outside the electric control box body 900 and connected to the first pipeline 200, providing a convenient connection channel. At the same time, the outer wall surface of the first adapter 21 is provided with a mounting block 900C, and the mounting block 900C can be fixed on the partition plate 900B by screw connection or the like.

[0138] In addition, the partition plate may be provided with a ventilation hole 900d connecting the first cavity and the second cavity, and a fan may be provided in the electric control box body 900 to accelerate the air flow in the first cavity and improve the heat dissipation efficiency.

[0139] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0140] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A heat dissipation device, which is a part of a refrigerant circulation circuit, characterized in that: The invention comprises a first pipeline and a heat dissipation component connected to the first pipeline, wherein the first pipeline is a part of a refrigerant circulation loop and its main component is steel, and the heat dissipation component comprises: A heat dissipation body, the heat dissipation body having a part of the flow path of the refrigerant circulation circuit, the main component of the heat dissipation body is aluminum, and the heat dissipation body is thermally connected to the target cooling member; and A heat dissipation pipe, the heat dissipation pipe comprising: A first adapter portion, wherein a first end of the first adapter portion is connected to the heat dissipation body, and a main component of the first adapter portion is aluminum; A second transition portion, the second transition portion is arranged at a second end of the first transition portion, and a main component of the second transition portion is copper; The internal space of the electric control box is divided into a first cavity and a second cavity, the heat dissipation body is arranged in the second cavity, the heat dissipation pipe extends from the second cavity out of the electric control box, and the second adapter is located outside the electric control box and connected to the first pipeline; The first pipeline includes a main pipe part and a third transition part, the third transition part is connected to the second transition part, the main pipe part is mainly composed of steel, and the main component of the third transition part is copper.

2. The heat dissipation device according to claim 1, characterized in that: The third transition portion is a plating layer provided on the inner tube surface or the outer tube surface of the first end portion of the main tube portion, and a main component of the plating layer is copper.

3. The heat dissipation device according to claim 1, characterized in that: The third adapter part is a sleeve sleeved on the inner tube surface or outer tube surface of the first end of the main tube part, and the end of the sleeve away from the main tube part is sleeved on the inner tube surface or outer tube surface of the second adapter part, and the main component of the sleeve is copper.

4. The heat dissipation device according to claim 1, characterized in that: The first end of the first pipeline is connected to the second adapter, and the second end of the first pipeline is connected to the heat source heat exchanger of the refrigerant circulation loop.

5. The heat dissipation device according to claim 2, characterized in that: The main pipe section comprises a first pipe section, a transition pipe section and a second pipe section which are connected in sequence, the coating covers the inner pipe surface and / or the outer pipe surface of the first pipe section, the transition pipe section and the second pipe section, and the first pipe section is closer to the second transition section than the second pipe section; The inner diameter of the first pipe segment is larger than or smaller than the inner diameter of the second pipe segment, or the inner diameters of the first pipe segment, the transition pipe segment and the second pipe segment are the same.

6. The heat dissipation device according to claim 3, characterized in that: The main pipe section comprises a first pipe section, a transition pipe section and a second pipe section which are connected in sequence, the first pipe section is closer to the second transition section than the second pipe section, and the sleeve is sleeved on the outer pipe surface of the first pipe section; The inner diameter of the first pipe segment is larger than or smaller than the inner diameter of the second pipe segment, or the inner diameters of the first pipe segment, the transition pipe segment and the second pipe segment are the same.

7. The heat dissipation device according to claim 3, characterized in that: The main pipe section comprises a first pipe section, a transition pipe section and a second pipe section which are connected in sequence, the first pipe section is closer to the second transition section than the second pipe section, and the sleeve is nested in the inner pipe surface of the first pipe section; The inner diameter of the first pipe segment is larger than or smaller than the inner diameter of the second pipe segment, or the inner diameters of the first pipe segment, the transition pipe segment and the second pipe segment are the same.

8. The heat dissipation device according to claim 6 or 7, characterized in that: The sleeve comprises a first sub-tube, a transition sub-tube and a second sub-tube connected to each other, wherein the first sub-tube is farther away from the second transition portion than the second sub-tube; The inner diameter of the first sub-tube is larger or smaller than the inner diameter of the second sub-tube, or the inner diameters of the first sub-tube, the transition sub-tube and the second sub-tube are the same.

9. The heat dissipation device according to claim 1, characterized in that: The target cooling component is a heating component on the refrigerant circulation loop or a heating electronic component of an electronic control unit.

10. The heat dissipation device according to claim 1, characterized in that: The heat dissipation body includes at least one plate tube, and each of the plate tubes includes at least one layer of microchannels.

11. The heat dissipation device according to claim 10, characterized in that: The heat dissipation body is constructed as a plate tube, and the plate tube includes a plurality of microchannels; The heat dissipation pipe includes: A connecting part, the connecting part is configured to be in a hollow flat shape for the plate tube to be inserted, and the main component of the connecting part is aluminum; The first adapter portion is configured in a circular tube shape, and a first end of the first adapter portion is connected to the connecting portion; The second adapter portion is configured in a circular tube shape, and the first adapter portion and the second adapter portion are coaxially arranged.

12. The heat dissipation device according to claim 10, characterized in that: There are two heat dissipation pipes, which are respectively connected to the two ends of the heat dissipation body. The two heat dissipation pipes include: Two connecting parts, each of which is configured to be a hollow flat shape and for inserting two ends of the plate tube respectively; Two first transfer parts are connected to the two connecting parts respectively; Two second adapter parts, one of which is connected to the first pipeline, and the other second adapter part is connected to a steel liquid side outlet pipe, and the liquid side outlet pipe has a liquid side outlet of the refrigerant circulation loop.

13. The heat dissipation device according to claim 10, characterized in that: The heat dissipation body is constructed into a plurality of plate tubes, the plate surfaces of the plurality of plate tubes are located in the same plane and the plurality of plate tubes are sequentially spaced apart in a direction parallel to the plane; The heat dissipation pipe also includes: A header, the main component of which is aluminum, one end of each of the plurality of plate tubes being inserted into a tube cavity of the header; The first adapter portion is configured as a circular tube, and a first end of the first adapter portion is connected to the header; The second adapter portion is configured in a circular tube shape, and the first adapter portion and the second adapter portion are coaxially arranged.

14. The heat dissipation device according to claim 10, characterized in that: There are two heat dissipation pipes, which are respectively connected to the two ends of the heat dissipation body. The two heat dissipation pipes include: Two headers, defined as a first header and a second header, the first header is closer to the heat source heat exchanger of the refrigerant circulation loop than the second header, and the first header and the second header are respectively used for inserting two ends of the plurality of plate tubes; Two first adapters, respectively connected to the first header and the second header; Two second adapter parts, one of which is connected to the first pipeline, and the other second adapter part is connected to the liquid side outlet pipe, and the liquid side outlet pipe has a liquid side outlet of the refrigerant circulation loop.

15. The heat dissipation device according to claim 10, characterized in that: The number of the heat dissipation pipes is four, and the four heat dissipation pipes include a main inlet pipe, a main outlet pipe, an auxiliary inlet pipe, and an auxiliary outlet pipe. The main inlet pipe and the auxiliary outlet pipe are arranged side by side and located on the same side of the heat dissipation body, and the main outlet pipe and the auxiliary inlet pipe are arranged side by side and located on the other side opposite to the heat dissipation body. Each of the plate tubes at least comprises a first plate body and a second plate body which are attached to each other, the microchannels of the first plate body are respectively connected to the main inlet pipe and the main outlet pipe, the second adapter portion of the main inlet pipe is connected to the first pipeline, the second adapter portion of the main outlet pipe is connected to the liquid side outlet pipe, and the liquid side outlet pipe has a liquid side outlet of the refrigerant circulation loop; The microchannels of the second plate body are respectively connected to the auxiliary inlet pipe and the auxiliary outlet pipe, the second adapter of the auxiliary inlet pipe is connected to the liquid side outlet pipe through an expansion valve, and the second adapter of the auxiliary outlet pipe is connected to the compressor.

16. A heat source unit, characterized in that: include: A housing, constituting the outer shape of the heat source unit; A compressor, compressing the refrigerant into a refrigerant circulation loop, the compressor having an exhaust port for discharging the refrigerant and an air return port for recovering the refrigerant; Electric control box; A heat dissipation component, the heat dissipation component comprising: A heat dissipation body, the heat dissipation body having a part of the flow path of the refrigerant circulation circuit, the main component of the heat dissipation body is aluminum, and the heat dissipation body is thermally connected to the target cooling member, A heat dissipation pipe, the heat dissipation pipe comprising: a first adapter portion, a first end of the first adapter portion is connected to the heat dissipation body, the main component of the first adapter portion is aluminum, and a second adapter portion, the second adapter portion is arranged at the second end of the first adapter portion, the main component of the second adapter portion is copper; A heat source heat exchanger, the heat source heat exchanger having a near compressor side and a far compressor side, the refrigerant between the near compressor side and the far compressor side performs heat exchange with the heat source, the far compressor side of the heat source heat exchanger is connected to the second adapter via a first steel pipeline, and the near compressor side of the heat source heat exchanger is connected to the exhaust port of the compressor via a second steel pipeline; The inner space of the electric control box body is divided into a first cavity and a second cavity, the heat dissipation body is arranged in the second cavity, the heat dissipation pipe extends from the second cavity out of the electric control box body, and the second adapter is located outside the electric control box body and connected to the first pipeline; The first pipeline includes a main pipe part and a third transition part, the third transition part is connected to the second transition part, the main pipe part is mainly composed of steel, and the main component of the third transition part is copper.

17. The heat source unit according to claim 16, wherein: It also includes a flow path switching device, the flow path switching device comprising: A first interface connected to an exhaust port of the compressor via an exhaust pipe; A second interface, which is connected to the compressor-proximal side of the heat source heat exchanger via the second pipeline; A third interface, which is connected to the gas outlet of the heat source unit via a gas outlet pipe; and The fourth interface is connected to the return air port of the compressor via a return air pipe.

18. The heat source unit according to claim 17, wherein: The heat source unit comprises: An electronic control unit, comprising a circuit board and a plurality of electronic components arranged on the circuit board; a partition plate, which is arranged in the electric control box body to divide the internal space of the electric control box body into a first cavity and a second cavity, and the circuit board and the plurality of electronic components are arranged in the first cavity; The heat dissipation body is arranged in the second cavity, the partition plate comprises a clearance hole, a heat dissipation plate is arranged in the clearance hole and two plate surfaces are respectively thermally connected to the plurality of electronic components and the heat dissipation body.

Images