Heat source device and heating and ventilation equipment

Abstract

The application discloses a heat source device and a heating and ventilation equipment, and relates to the technical field of heating and ventilation equipment. The heat source device comprises a shell, a heat source heat exchanger, a compressor, a pipe assembly and an electric control device arranged in the shell, the shell is formed with a maintenance opening, and the electric control device is exposed to the maintenance opening. The electric control device comprises a fixing assembly, and the fixing assembly comprises a mounting rack, a first heat dissipation module and a second heat dissipation module. When the electronic components are disassembled and maintained, only the electric control assembly needs to be dismounted, and the connection between the first heat conduction member and the cooling pipeline does not need to be released, so that the first heat conduction member and the cooling pipeline always maintain the initial connection state, thereby eliminating the problems of reduced heat transfer efficiency and affected service life of the refrigerant pipeline caused by deformation of the refrigerant pipeline after the connection between the refrigerant pipeline and the heat dissipation member is released. Moreover, the electric control assembly is closer to the maintenance opening than the fixing assembly, so that the electric control assembly can be maintained more conveniently.

Description

Technical Field

[0001] This invention relates to the field of heating, ventilation and air conditioning (HVAC) equipment technology, and more particularly to a heat source device and HVAC equipment. Background Technology

[0002] This section provides only background information relevant to this disclosure and is not necessarily prior art.

[0003] The electrical control unit of the heat source device integrates electronic components such as frequency converters, microprocessors, and power semiconductors. The temperature of these electronic components rises sharply under high loads, affecting their performance and lifespan. Therefore, related technologies mount the electronic components on heat sinks, which then interface with low-temperature structures such as refrigerant piping. Heat exchange between the refrigerant piping, the heat sink, and the electronic components is achieved through this process.

[0004] However, when repairing electronic components, the heat sink needs to be removed as well. This is not only inconvenient to disassemble and reassemble, but also makes it difficult to restore the heat sink and refrigerant pipe to their original connection state before removal due to factors such as deformation of the refrigerant pipe. This reduces the heat transfer efficiency between the heat sink and the refrigerant pipe and also affects the service life of the refrigerant pipe. Summary of the Invention

[0005] The purpose of this invention is to at least solve the problem of reduced heat transfer efficiency and reduced service life of refrigerant piping caused by the removal, repair, and reinstallation of existing electronic components. This purpose is achieved through the following technical solution: In a first aspect, the present invention provides a heat source device applied to a refrigerant circulation system, comprising a housing, wherein a heat source heat exchanger, a compressor, a piping assembly, and an electrical control device are disposed within the housing, the gas side of the heat source heat exchanger is connected to the compressor via the piping assembly, the housing forms a maintenance port, and the electrical control device is exposed in the maintenance port; the electrical control device includes a fixing assembly, the fixing assembly including a mounting bracket and a first heat dissipation module, the mounting bracket being mounted on the housing, the first heat dissipation module including a first heat-conducting element and a cooling pipe fixed to the first heat-conducting element, the first heat-conducting element being... The heat-generating component is mounted on the mounting bracket, and the cooling pipe is connected to the liquid side of the heat source heat exchanger via the piping assembly. The electrical control assembly includes a circuit module and a second heat dissipation module. The circuit module includes a circuit board and multiple electronic components mounted on the circuit board. Among the multiple electronic components, at least one target cooling component is included. The second heat dissipation module includes a second heat-conducting component. The at least one target cooling component is in thermal contact with the second heat-conducting component and the two are fixedly connected. The electrical control assembly is detachably mounted on the fixed assembly, and the electrical control assembly is closer to the maintenance port than the fixed assembly.

[0006] By adopting the above technical solution, the first heat-conducting component is used in conjunction with the cooling pipe for heat conduction, and the second heat-conducting component is used as the mounting carrier for electronic components. When disassembling and repairing electronic components, only the electronic control component needs to be removed, without disconnecting the first heat-conducting component from the cooling pipe. This ensures that the first heat-conducting component and the cooling pipe always maintain their initial connection state, thereby eliminating the problem of reduced heat transfer efficiency and reduced service life of the refrigerant pipe caused by deformation after disconnecting the refrigerant pipe from the heat sink. Moreover, placing the electronic control component closer to the maintenance port than the fixed component makes it easier to maintain the electronic control component.

[0007] In some embodiments of the present invention, the housing encloses a receiving cavity, and the housing is provided with a partition that divides the receiving cavity into a first sub-cavity and a second sub-cavity. The heat source heat exchanger is located in the first sub-cavity, the compressor and the piping assembly are located in the second sub-cavity, and the electrical control device is mounted on the partition, with part of the electrical control device located in the first sub-cavity and another part located in the second sub-cavity.

[0008] By adopting the above technical solution, the partition not only separates the first sub-cavity and the second sub-cavity, but also carries the electrical control device, so that the electrical control device can be connected to the heat source heat exchanger, the compressor and the piping assembly respectively.

[0009] In some embodiments of the present invention, the electronic control device further includes a housing, which is mounted on the partition, has an open upper end, the mounting bracket is mounted on the housing, and the fixing component and the electronic control component are at least partially located inside the housing.

[0010] By adopting the above technical solution, the electrical control components and fixed components are integrated and protected by the housing, which facilitates the installation of the electrical control device.

[0011] In some embodiments of the present invention, the top of the partition is provided with a first connecting component with a support portion located on at least one of the two sides of the support portion, the support portion being used to support the box body, and the first connecting component being used to connect the box body.

[0012] By adopting the above technical solution, the stability of the electrical control device installation can be improved through the support part and the first connecting component.

[0013] In some embodiments of the present invention, the electronic control device further includes a first connector, which passes through the fixing component and the electronic control component to enable the fixing component and the electronic control component to be detachably connected.

[0014] By adopting the above technical solution, the first connector is used to pass through the fixing component and the electronic control component to achieve a detachable connection between the two, which not only facilitates disassembly and assembly, but also further improves the connection stability between the second heat-conducting component and the circuit board.

[0015] In some embodiments of the present invention, the electronic control device further includes a cover, the cover being disposed on the box body, the electronic control component being mounted on the cover, and the first connector passing through the cover.

[0016] By adopting the above technical solution, the cover protects the electronic control components and the fixing components, and the first connector connects the cover, the circuit board, the second heat-conducting component and the first heat-conducting component, so as to realize the detachable connection between the cover and the electronic control components. The structure is ingenious and multifunctional.

[0017] In some embodiments of the present invention, at least one positioning block is mounted on the side of the circuit board facing the second heat-conducting element, and the second heat-conducting element is positioned and engaged with the positioning block.

[0018] By adopting the above technical solution, the positioning and cooperation between the second heat-conducting component and the positioning block facilitates the assembly of the circuit board and the second heat-conducting component.

[0019] In some embodiments of the present invention, the positioning block is provided with one of a positioning protrusion and a positioning groove, and the second heat-conducting member is provided with the other of the positioning protrusion and the positioning groove, wherein the positioning protrusion and the positioning groove are positioned and engaged.

[0020] The above technical solution utilizes positioning protrusions and positioning grooves for positioning and engagement, resulting in a simple structure that is easy to assemble and disassemble.

[0021] In some embodiments of the present invention, the mounting bracket is provided with a first positioning part, the first heat-conducting member is provided with a second positioning part, and the first positioning part and the second positioning part are positioned and connected.

[0022] By adopting the above technical solution and utilizing the positioning connection between the first positioning part and the second positioning part, the mounting bracket and the first heat-conducting component can be quickly and accurately aligned, thereby improving assembly efficiency and accuracy.

[0023] In some embodiments of the present invention, the second heat-conducting member is provided with a third positioning part, and the first positioning part is respectively positioned and connected to the second positioning part and the third positioning part.

[0024] By adopting the above technical solution, the first positioning part is positioned and connected to the second positioning part and the third positioning part respectively, making it a multi-purpose unit.

[0025] In some embodiments of the present invention, the first positioning part is a positioning post, the second positioning part is a positioning hole, the second positioning part is a positioning groove, and the second positioning part and the third positioning part are in communication. The first positioning part is inserted into the second positioning part and the third positioning part to achieve positioning connection.

[0026] By adopting the above technical solution, the insertion and matching of positioning pins and positioning holes achieves rapid and accurate guidance and alignment, significantly improving assembly efficiency and accuracy. At the same time, it enhances the rigidity and vibration resistance of the connection structure, ensuring long-term reliability. Moreover, the structure is simple and practical, requiring no additional tooling, thus reducing production costs and operational difficulty.

[0027] In some embodiments of the present invention, the mounting bracket has a first receiving portion on the side facing the first heat-conducting element, and the first heat-conducting element has a second receiving portion on the side facing the mounting bracket, and the first receiving portion and the second receiving portion together form a receiving space for accommodating the cooling pipe.

[0028] By adopting the above technical solution, a portion of the cooling pipe is accommodated by the first accommodating part, and another portion of the cooling pipe is accommodated by the second accommodating part. During assembly, the cooling pipe can be installed in one of the first accommodating part and the second accommodating part first, and then connected to the other of the first accommodating part and the second accommodating part to realize the installation of the cooling pipe. The installation is convenient and the structure is simple, and the installation accuracy and stability of the cooling pipe after assembly can be improved.

[0029] In some embodiments of the present invention, the length direction of the mounting bracket is parallel to the length direction of the first heat-conducting element, the first receiving portion includes a first receiving groove with openings at both ends along the length direction of the mounting bracket, and the second receiving portion includes a second receiving groove with openings at both ends along the length direction of the first heat-conducting element.

[0030] Using the above technical solution, the cooling pipe can extend out of the receiving space through the opening of the first receiving groove and the opening of the second receiving groove, which facilitates the pipeline layout of the cooling pipe and its connection with other pipelines.

[0031] In some embodiments of the present invention, the mounting bracket is provided with a fourth positioning part and a first connecting part on the side opposite to the first heat-conducting element. The first connecting part is used to connect to the housing, and the fourth positioning part is used to position and connect with the housing of the electronic control device.

[0032] By adopting the above technical solution, the fourth positioning part is used to achieve a positioning connection with the box of the electronic control device, which can improve the assembly efficiency and accuracy of the mounting frame and the box of the electronic control device. Furthermore, the mechanical connection between the first connecting part and the box of the electronic control device can improve the connection stability and strength between the mounting frame and the box of the electronic control device.

[0033] In some embodiments of the present invention, the first connecting part is a buckle, the fourth positioning part is a positioning post, the positioning post is located between the two buckles, and the length of the positioning post is greater than the length of the buckle.

[0034] The above technical solution provides axial guidance and radial positioning, improving assembly accuracy; the two side buckles apply balanced locking force, which can further improve the connection stability between the mounting bracket and the electrical control device housing. This structure with a positioning column in the middle of the two side buckles integrates guiding, positioning and locking functions, improving assembly efficiency, connection rigidity and long-term reliability. At the same time, the structure is simple and compact, reducing manufacturing and maintenance costs.

[0035] In some embodiments of the present invention, the second thermal conductive element has a first surface and a second surface that are opposite or adjacent to each other, the first thermal conductive element has a third surface facing the second thermal conductive element, the first surface is used to mount the electronic component, and the second surface is in contact with the third surface.

[0036] By adopting the above technical solution, the second surface and the third surface are attached to each other, which can increase the heat exchange area between the second heat-conducting element and the first heat-conducting element, forming an efficient heat conduction path from the electronic component through the second heat-conducting element to the first heat-conducting element, thereby improving the heat dissipation efficiency of the electronic control device.

[0037] In some embodiments of the present invention, the first surface is provided with a recess, at least a portion of which is configured to face the electronic component.

[0038] By adopting the above technical solution, the recess can increase the creepage distance between electronic components and the second heat-conducting component.

[0039] In some embodiments of the invention, the recess includes a notch located on one or both sides of the first surface along its width direction.

[0040] By adopting the above technical solution, the recess is set as a notch located on one or both sides of the first surface, which not only facilitates processing and increases the creepage distance between electronic components and the second heat-conducting component, but also facilitates airflow to remove heat.

[0041] In some embodiments of the invention, the second thermally conductive element is configured to be detachably connected to the electronic component.

[0042] By adopting the above technical solution, the second heat-conducting component can be detachably connected to the electronic component, which facilitates the assembly and disassembly of the electronic component.

[0043] In a second aspect, the present invention provides a heating, ventilation, and air conditioning (HVAC) device, including the heat source device described above. Attached Figure Description

[0044] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A schematic diagram of the structure of a heat source device provided according to an embodiment of the present invention is shown. Figure 2 An exploded view schematically illustrates a heat source device provided according to an embodiment of the present invention; Figure 3 A schematic diagram of the structure of the electronic control device and the partition provided according to an embodiment of the present invention is shown. Figure 4 A schematic diagram of the structure of an electronic control device provided according to an embodiment of the present invention is shown. Figure 5 An exploded view of the electronic control device provided according to an embodiment of the present invention is shown schematically from one perspective. Figure 6 An exploded view of the electronic control device provided according to an embodiment of the present invention is shown schematically from another perspective; Figure 7 An exploded view schematically illustrating a first thermally conductive module and a second thermally conductive module provided according to an embodiment of the present invention is shown. Figure 8 A top view schematically illustrates the electronic control device provided in a fundamental embodiment of the present invention; Figure 9 for Figure 8 AA section diagram Figure 10 The diagram illustrates the structure of the first heat-conducting element and the cooling pipe provided according to an embodiment of the present invention from a first perspective. Figure 11 The schematic diagram illustrates the structure of the first heat-conducting element and the cooling pipe provided according to an embodiment of the present invention from a second perspective. Figure 12 A schematic diagram of the structure of the mounting bracket provided according to an embodiment of the present invention is shown. Figure 13 A schematic diagram of the structure of the second heat-conducting module provided according to an embodiment of the present invention is shown. Figure 14 A schematic diagram of the structure of the second heat-conducting element provided according to an embodiment of the present invention is shown. Figure 15 A schematic diagram illustrating the system principle of a heating, ventilation, and air conditioning (HVAC) device according to an embodiment of the present invention is shown.

[0045] The attached figures are labeled as follows: 1000. Heating, ventilation, and air conditioning equipment; 100. Heat source device; 200. Indoor unit of HVAC equipment; 10. Piping assembly; 11. Four-way valve; 111. First port; 112. Second port; 113. Third port; 114. Fourth port; 12. First connecting pipe; 121. First valve body; 122. Oil separator; 13. Second connecting pipe; 14. Third connecting pipe; 15. Fourth connecting pipe; 151. First filter; 152. Gas-side shut-off valve; 16. Fifth connecting pipe; 161. First expansion valve; 162. Second filter; 163. Liquid-side shut-off valve; 164. Second expansion valve; 20. Compressor; 30. Heat source heat exchanger; 40. Load heat exchanger; 50. Gas-liquid separator; 60. Shell; 61. Top wall; 62. Bottom wall; 63. Side wall; 631. Front panel; 632. First side panel; 633. Rear panel; 634. Second side panel; 635. Air outlet; 64. Partition; 641. Support; 642. First connecting assembly; 70. Electronic control device; 71. Box body; 72. Electronic component heat sink; 721. Second heat-conducting component; 7211. First connecting hole; 7212. First surface; 7213. Second surface; 7214. Recess; 722. First heat-conducting component; 7221, Second receiving portion; 7222, Second positioning portion; 7223, Second connecting hole; 7224, Third surface; 723, Cooling pipe; 724, Mounting bracket; 7241, First receiving portion; 7242, First positioning portion; 7243, Fourth positioning portion; 7244, First connecting portion; 725, Electronic component; 726, Circuit board; 7261, Third connecting hole; 7262, Positioning block; 73, Cover; 731, Fourth connecting hole; 74, First connector; 80. Outdoor fan; 90. Indoor fan. Detailed Implementation

[0046] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0047] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also include the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0048] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0049] For ease of description, spatial relative terms may be used in the text to describe the relationship of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "over," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure is flipped, an element described as "below other elements or features" or "below other elements or features" would subsequently be oriented as "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in the text will be interpreted accordingly.

[0050] Combined with appendix Figure 1-14 As shown, this application provides a heat source device 100 for use in a refrigerant circulation system. In some embodiments, the heat source device 100 may be an outdoor unit of a heating, ventilation, and air conditioning (HVAC) system. The heat source device 100 includes a housing 60, a heat exchanger 30, a compressor 20, a piping assembly 10, and an electrical control device 70.

[0051] In this embodiment, the heat source heat exchanger 30, compressor 20, piping assembly 10 and electrical control device 70 are all disposed inside the housing 60. The gas side of the heat source heat exchanger 30 is connected to the compressor 20 through the piping assembly 10. The housing 60 has a maintenance port, and the electrical control device 70 is exposed in the maintenance port. The housing 60 includes a top wall 61, a bottom wall 62 and a side wall 63, wherein the top wall 61 is detachably installed in the maintenance port to facilitate the maintenance of the electrical control device 70.

[0052] The electronic control device 70 in this embodiment includes a housing 71, an electronic component heat sink 72, and a cover 73. The electronic component heat sink 72 includes a fixing component and an electronic control component. The fixing component includes a mounting bracket 724 and a first heat dissipation module. The mounting bracket 724 is mounted on the housing 60. The first heat dissipation module includes a first heat-conducting element 722 and a cooling pipe 723 fixed to the first heat-conducting element 722. The first heat-conducting element 722 is mounted on the mounting bracket 724. The cooling pipe 723 is connected to the liquid side of the heat source heat exchanger 30 via a piping assembly 10.

[0053] The electronic control assembly includes a circuit module and a second heat dissipation module. The circuit module includes a circuit board 726 and a plurality of electronic components 725 mounted on the circuit board 726. Among the plurality of electronic components 725, at least one target cooling component is included. The second heat dissipation module includes a second heat conduction component 721. At least one target cooling component is in thermal contact with the second heat conduction component 721 and the two are fixedly connected.

[0054] In this embodiment, the electronic control component can be detachably installed on the fixed component, and the electronic control component is closer to the maintenance port than the fixed component, which makes it easier to maintain the electronic control component.

[0055] In this embodiment, the housing 60 encloses the receiving cavity, and the partition 64 divides the receiving cavity into a first sub-cavity and a second sub-cavity (not shown in the figure). The heat source heat exchanger 30 is located in the first sub-cavity, the compressor 20 and the piping assembly 10 are located in the second sub-cavity, and the electrical control device 70 is installed on the partition 64. Part of the electrical control device 70 is located in the first sub-cavity, and the other part is located in the second sub-cavity.

[0056] In this embodiment, the housing 71 is mounted on the partition 64. The upper end of the housing 71 is open, and the mounting bracket 724 is mounted on the housing 71. The fixing components and electrical control components are at least partially located inside the housing 71. The partition 64 separates the first sub-cavity and the second sub-cavity. The partition 64 also serves to support the electrical control device 70, so that the electrical control device 70 can be connected to the heat source heat exchanger 30, the compressor 20, and the piping assembly 10 respectively.

[0057] The top of the partition 64 is provided with a support portion 641. A first connecting component 642 is located on at least one side of the support portion 641. The support portion 641 is used to support the box body 71, and the first connecting component 642 is used to connect the box body 71. The support portion 641 can be a plate-shaped or block-shaped structure extending from the top of the partition 64. The support portion 641 can improve the stability of the installation of the electronic control device 70.

[0058] The connection method between the first connecting component 642 and the housing 71 can be a mechanical connection method such as snap-fit, plug-in, or bolt connection, which will not be listed in detail in this embodiment.

[0059] The electronic control device 70 also includes a cover 73, which covers the housing 71. The electronic control components are mounted on the cover 73, and a first connector passes through the cover 73. The cover 73 protects the electronic control components and the fixing components, and the first connector connects the cover 73, the circuit board 726, the second heat-conducting component 721, and the first heat-conducting component 722, enabling a detachable connection between the cover 73 and the electronic control components. The structure is ingenious and multifunctional.

[0060] The electronic control device 70 in this embodiment further includes a first connector, which passes through the fixing component and the electronic control component to make the fixing component and the electronic control component detachably connected.

[0061] For example, a first connection hole 7211 may be provided in the second heat-conducting component 721, and a second connection hole 7223 may be provided in the first heat-conducting component 722. A third connection hole 7261 may also be provided on the circuit board 726. The first connection hole 7211 and the second connection hole 7223 may be connected by a first connector, which may be a bolt, screw or pin.

[0062] The connection between the second heat-conducting component 721 and the first heat-conducting component 722 is achieved by using bolts, screws, or pins to connect with holes. The structure is simple and reliable, and can achieve high-strength fastening, precise positioning, and convenient assembly and disassembly between the two second heat-conducting components 721 and the first heat-conducting component 722.

[0063] To further simplify the structure and reduce assembly costs, this embodiment also designs the first connector to pass through the circuit board 726 and the cover 73. The circuit board 726 is mounted on the cover 73. A third connection hole 7261 for the first connector to pass through can be opened on the circuit board 726, and a fourth connection hole 731 for the first connector to pass through can be opened on the cover 73.

[0064] The third connecting hole 7261 and the fourth connecting hole 731 can be screw holes or pin holes. In this way, the first connector can be used for multiple purposes in one piece, eliminating the need to configure the connection structure of the first heat-conducting component 722 and the mounting bracket 724, which is convenient for assembly and saves costs.

[0065] Taking the first connecting component as a bolt as an example, the nut at one end of the bolt can abut against the cover 73, and the other end of the bolt passes through the mounting bracket 724 and is locked with a nut, so that the cover 73, circuit board 726, second heat-conducting component 721, and first heat-conducting component 722 are connected as a whole. This improves the overall stability of the electronic control device 70 and facilitates the disassembly and assembly of the electronic control components and the fixing components.

[0066] Combined with appendix Figure 6 Appendix Figure 13 and 14 As shown, in this embodiment, at least one positioning block 7262 is mounted on the side of the circuit board 726 facing the second heat-conducting element 721, and the second heat-conducting element 721 is positioned and engaged with the positioning block 7262. The second positioning block 7262 can engage with the second heat-conducting element 721. For example, the positioning block 7262 is provided with one of a positioning protrusion and a positioning groove, and the second heat-conducting element 721 is provided with the other of a positioning protrusion and a positioning groove, and the positioning protrusion and the positioning groove are positioned and engaged.

[0067] In some embodiments, the cooling pipe 723 can be understood as part of the electronic control device 70. Of course, in addition to being part of the electronic control device 70, the cooling pipe 723 should also be considered as part of the piping assembly 10 of the HVAC equipment. That is, in addition to being used to dissipate heat from the electronic components 725, the cooling pipe 723 is also used for the flow of refrigerant.

[0068] The piping assembly 10 is used to connect the heat source heat exchanger 30, the load heat exchanger 40, the compressor 20, and the four-way valve 11 to form a refrigerant circulation. In some embodiments, the cooling pipe 723 can be regarded as a part of the fifth connecting pipe 16 of the piping assembly 10, or it can be regarded as an independent connecting pipe.

[0069] The second heat-conducting element 721 and the first heat-conducting element 722 can be made of metal materials such as copper, aluminum or stainless steel. They need to have good thermal conductivity so that the heat of the electronic component 725 can be transferred to the second heat-conducting element 721 and the first heat-conducting element 722, and finally transferred to the cooling pipe 723.

[0070] In some embodiments, the second heat-conducting element 721, the first heat-conducting element 722, and the cooling pipe 723 are all made of aluminum, which not only improves the heat dissipation efficiency of the electronic component 725, but also facilitates the processing and forming of the three components.

[0071] The electronic component 725 in this embodiment can be one or more of frequency converters, microprocessors, and power semiconductors. Of course, it can also be other electronic components 725 used in HVAC equipment. This embodiment will not list them all.

[0072] The thermally conductive fit between the electronic component 725 and the second heat-conducting component 721 means that the two can be attached and connected. The connection between the electronic component 725 and the second heat-conducting component 721 can be a fixed connection or a detachable connection. Taking a detachable connection as an example, the electronic component 725 can be installed on the second heat-conducting component 721 by means of bolts, screws, clips or pins, so as to facilitate the installation of the electronic component 725 relative to the second heat-conducting component 721.

[0073] There are several ways to achieve "detachable connection" in this embodiment. For example, based on the principle of connection and locking, detachable connection can be mechanical locking connection or magnetic connection. Both mechanical locking connection and magnetic connection have simple structure, convenient disassembly and assembly, and low maintenance and production costs.

[0074] Among them, mechanical locking connections include at least one of bolt connections, screw connections, snap-fit ​​connections, threaded connections, plug connections, and pin connections.

[0075] A bolted connection refers to a connection where two components have holes (which can be threaded holes or through holes), a bolt is passed through the two holes, and a nut is used to tighten the bolt. A screw connection refers to a connection where two components have threaded holes, and a screw is connected to the two threaded holes.

[0076] A snap-fit ​​connection refers to a connection between two components, one of which has an elastic snap and the other has a slot. The connection between the two components is achieved by the elastic snap deforming and fitting into the slot.

[0077] A threaded connection refers to a connection between two components, one of which has an external thread and the other has an internal thread. The two components are connected by the threaded connection of the external and internal threads.

[0078] A pin connection refers to a connection between two components with pin holes. A pin passes through the two holes and is pressed and fixed between the pin and the pin holes, thereby achieving the connection between the two components.

[0079] The aforementioned detachable connection methods can achieve the fixation and precise positioning of the two components, and have high connection strength, vibration resistance stability and repeatable assembly and disassembly performance, thereby improving the assembly efficiency and maintenance convenience of the electronic control device 70.

[0080] In addition to being mounted on the second heat-conducting component 721 in this embodiment, the electronic component 725 is also electrically connected to the circuit board 726 in the figure. The electronic component 725 can be directly mounted on the circuit board 726. The electrical connection can be a direct conductive connection. The circuit board 726 is mounted inside the housing 71 of the electronic control device 70.

[0081] Unlike related technologies that directly mount electronic components 725 onto heat sinks directly connected to cooling pipes 723, the first heat dissipation module in this embodiment connects to and thermally engages with cooling pipes 723 via a first thermally conductive component 722. The first thermally conductive component 722 of the first heat dissipation module is detachably connected to and thermally engaged with the second thermally conductive component 721 of the second heat dissipation module. The first thermally conductive component 722 serves as the mounting carrier for electronic components 725. When disassembling and repairing electronic components 725, only the second thermally conductive component 721 needs to be removed, without disconnecting the first thermally conductive component 722 from the cooling pipes 723. This ensures that the first thermally conductive component 722 and the cooling pipes 723 always maintain their initial connection state, thereby eliminating the possibility of deformation due to disconnection of the refrigerant pipeline from the heat sink. This reduces the likelihood of problems such as reduced heat transfer efficiency and service life of the refrigerant pipeline.

[0082] Combined with appendix Figure 7 and attached Figure 12 As shown, the mounting bracket 724 serves both a positioning and a connecting function. The positioning function refers to its use for positioning the first heat-conducting component 722 during installation, while the connecting function is used to install and support the first heat-conducting component 722 and to indirectly connect the first heat-conducting component 722 to the housing 71.

[0083] During assembly, the first heat-conducting component 722 of this embodiment is installed on the mounting bracket 724. The installation method can be the detachable connection described above, or a fixed connection method such as welding. The mounting bracket 724 is used to connect to the housing 71 of the electronic control device 70 of the heat source device 100. Through the connection between the mounting bracket 724 and the housing 71 of the electronic control device 70, the first heat-conducting component 722, the second heat-conducting component 721, and the electronic component 725 are fixed in the housing 71 of the electronic control device 70, thereby improving the installation stability of the electronic component 725.

[0084] Combined with appendix Figure 10-12 As shown, the connection method between the cooling pipe 723 and the first heat-conducting element 722 can be that an insertion hole is directly provided in the first heat-conducting element 722, and the cooling pipe 723 is directly inserted into the insertion hole (this embodiment is not shown in the figure), or the first heat-conducting element 722 and the mounting bracket 724 together form a space to accommodate the cooling pipe 723.

[0085] The mounting bracket 724 has a first receiving portion 7241 on the side facing the first heat-conducting component 722, and correspondingly, the first heat-conducting component 722 has a second receiving portion 7221 on the side facing the mounting bracket 724. The first receiving portion 7241 and the second receiving portion 7221 enclose and form a receiving space for accommodating the cooling pipe 723.

[0086] The first receiving part 7241 can be a groove or a clamp, and the second receiving part 7221 can also be a groove or a clamp. The first receiving part 7241 accommodates a portion of the cooling pipe 723, and the second receiving part 7221 accommodates the other portion of the cooling pipe 723. During assembly, the cooling pipe 723 can be installed in one of the first receiving part 7241 and the second receiving part 7221 first, and then the first receiving part 7241 and the second receiving part 7221 can be connected to achieve the installation of the cooling pipe 723. The installation is convenient and the structure is simple, and it can improve the installation accuracy of the cooling pipe 723 and the stability after assembly.

[0087] In this embodiment, the first receiving portion 7241 is a first receiving groove, and the second receiving portion 7221 is a second receiving groove. The cross-section of the first receiving groove is a first arc shape, and the cross-section of the second receiving groove is a second arc shape. When the cross-section of the cooling pipe 723 is annular, the arc of the first arc shape and the arc of the second arc shape are added together to 360°, thereby enabling the outer wall surface of the cooling pipe 723 to fit with the inner wall surface of the first receiving groove and the second receiving groove, thereby improving the heat conduction efficiency.

[0088] Furthermore, in this embodiment, the length direction of the mounting bracket 724 is parallel to the length direction of the first heat-conducting element 722. Along the length direction of the mounting bracket 724, the first receiving groove is a groove structure with openings at both ends. Similarly, along the length direction of the first heat-conducting element 722, the second receiving groove is a groove structure with openings at both ends. In this way, the cooling pipe 723 can extend out of the receiving space through the openings of the first receiving groove and the second receiving groove, which facilitates the pipe laying of the cooling pipe 723 and its connection with other pipes.

[0089] For example, the cooling pipe 723 in the figure forms a bend during installation. The extension design of this bend can be understood as entering from one end opening of the first receiving groove and then extending from one end opening of the first receiving groove. Although it bends into one end opening of the second receiving groove and then extends from the other end opening of the second receiving groove, it does not change the direction of the entire piping assembly 10. It only makes a bend extension at the electronic control device 70 to dissipate heat from the electronic component 725.

[0090] Combined with appendix Figure 8 , 9 As shown in Figure 12, the mounting bracket 724 of this embodiment is provided with a first positioning part 7242, and correspondingly, the first heat-conducting component 722 is provided with a second positioning part 7222. The mounting bracket 7242 and the first heat-conducting component 722 are positioned and connected to achieve rapid and accurate alignment between the mounting bracket 724 and the first heat-conducting component 722, thereby improving assembly efficiency and accuracy.

[0091] The first positioning part 7242 can be one of the positioning post and the second positioning part 7222 can be the other of the positioning post and the positioning hole. Specifically, the first positioning part 7242 can be a positioning post and the second positioning part 7222 can be a positioning hole. The positioning hole can be a through hole or a blind hole.

[0092] A third positioning part (not shown in the figure) can also be provided on the second heat-conducting element 721. The first positioning part 7242 passes through the second positioning part 7222 and the third positioning part. The positioning connection of the second heat-conducting element 721 and the first heat-conducting element 722 can be realized simultaneously by using the first positioning part 7242.

[0093] At this point, the first positioning part 7242 is a positioning post, the second positioning part 7222 is a positioning hole, and the third positioning part is a positioning hole or positioning groove. The positioning hole of the second heat-conducting element 721 communicates with the positioning hole of the first heat-conducting element 722. During assembly, the second heat-conducting element 721 and the first heat-conducting element 722 can be connected first, and then the whole formed by the two can be directly positioned and fitted with the first positioning part 7242.

[0094] This embodiment utilizes the insertion and engagement of positioning pins and positioning holes (or positioning slots) to achieve rapid and precise guidance and alignment, significantly improving assembly efficiency and accuracy. At the same time, it enhances the rigidity and vibration resistance of the connection structure, ensuring long-term reliability. Moreover, the structure is simple and practical, requiring no additional tooling, thus reducing production costs and operational difficulty.

[0095] Of course, in addition to the implementation of positioning pins and positioning holes, other methods such as keyway positioning fit, bevel fit, and protrusion-recessed positioning fit can also be used, but these will not be listed one by one in this implementation.

[0096] Combined again with the appendix Figure 7 As shown, in order to facilitate the installation of the mounting bracket 724 on the housing 71 of the electronic control device 70, this embodiment provides a fourth positioning part 7243 and a first connecting part 7244 on the side of the mounting bracket 724 away from the first heat-conducting member 722.

[0097] The fourth positioning part 7243 is used to position and connect with the housing 71 of the electronic control device 70 during the assembly of the mounting bracket 724. By using the fourth positioning part 7243 to achieve positioning connection with the housing 71 of the electronic control device 70, the assembly efficiency and accuracy of the mounting bracket 724 and the housing 71 of the electronic control device 70 can be improved.

[0098] Furthermore, the mechanical connection between the first connecting part 7244 and the housing 71 of the electronic control device 70 can improve the stability and strength of the connection between the mounting bracket 724 and the housing 71 of the electronic control device 70.

[0099] The fourth positioning part 7243 can have various structural forms. For example, the fourth positioning part 7243 can be any one of the above-mentioned positioning pins, keys, grooves, inclined surfaces, protrusions, and recesses.

[0100] In this embodiment, the first connecting part 7244 is a buckle, which is used to engage with the slot (not shown in the figure) on the housing 71 of the electronic control device 70, thereby realizing the connection between the mounting bracket 724 and the housing 71 of the electronic control device 70.

[0101] In this embodiment, the fourth positioning part 7243 is a positioning post. The two buckles are located on both sides of the mounting bracket 724 along the length direction, and the positioning post is located between the two buckles. Specifically, the positioning post can be located in the middle of the mounting bracket 724 along the length direction, and the length of the positioning post is greater than the length of the buckle.

[0102] When the mounting bracket 724 is assembled with the housing 71 of the electronic control device 70, since the length of the positioning post is longer than the buckle, it can first contact the housing 71 for initial positioning. Then, the mounting bracket 724 is moved to deform the buckle, so that the buckle is engaged in the slot.

[0103] During the assembly process described above, the positioning post provides axial guidance and radial positioning, improving assembly accuracy; the two side buckles apply a balanced locking force, which can further improve the connection stability between the mounting bracket 724 and the housing 71 of the electrical control device 70. This structure, with the positioning post in the middle of the two side buckles, integrates guiding, positioning and locking functions, improving assembly efficiency, connection rigidity and long-term reliability. At the same time, the structure is simple and compact, reducing manufacturing and maintenance costs.

[0104] Combined with appendix Figure 8-14 As shown, the detachable connection method between the second heat-conducting component 721 and the first heat-conducting component 722 in this embodiment can be bolt connection, screw connection or pin connection.

[0105] The second heat-conducting element 721 in this embodiment has a first surface 7212 and a second surface 7213 that are opposite or adjacent. The first surface 7212 and the second surface 7213 in the figure are opposite surfaces. The first surface 7212 is used to connect electronic components 725.

[0106] Accordingly, the first heat-conducting element 722 in this embodiment has a third surface 7224 facing the second heat-conducting element 721. The second surface 7213 of the second heat-conducting element 721 is in contact with the third surface 7224. This can increase the heat exchange area between the second heat-conducting element 721 and the first heat-conducting element 722, forming an efficient heat conduction path from the electronic component 725 through the second heat-conducting element 721 to the first heat-conducting element 722, thereby improving the heat dissipation efficiency of the electronic control device 70.

[0107] In this embodiment, the first surface 7212 is provided with a recess 7214, which may be entirely or partially facing a part of the electronic component 725.

[0108] The main function of the recess 7214 is to increase the creepage distance of the second heat-conducting element 721 and the electronic component 725.

[0109] The recess 7214 is a notch, which refers to a recessed structure located on one or both sides of the first surface 7212 along the width direction and having openings in at least two directions. The recess 7214 in the figure has openings in three directions: one opening in the length direction of the second heat-conducting element 721, one opening in the width direction of the second heat-conducting element 721, and one opening in the thickness direction of the second heat-conducting element 721.

[0110] Alternatively, it could have two notch structures with an opening in the width direction and an opening in the thickness direction of the second heat-conducting element 721.

[0111] The second heat-conducting element 721 is configured to be detachably connected to the electronic component 725. The method of detachable connection has been described above and will not be repeated in this embodiment. Detachably connecting the second heat-conducting element 721 to the electronic component 725 facilitates the assembly and disassembly of the electronic component 725.

[0112] In some embodiments, the cooling pipe 723 may be a section of the fifth connecting pipe 16, and the heat source device 100 includes an electronic control device 70. The electronic control device 70 includes a housing 71, a cover 73, a circuit board 726, electronic components 725, a second heat-conducting element 721, a first heat-conducting element 722, and a mounting bracket 724, all of which are installed inside the housing 71.

[0113] Electronic component 725 is electrically connected to circuit board 726. Circuit board 726 is electrically connected to functional devices such as compressor 20, four-way valve 11, first expansion valve 161, gas-side shut-off valve 152, liquid-side shut-off valve 163, and second expansion valve 164. Electronic component 725 and circuit board 726 form electronic control of the above-mentioned functional devices to open and close the above-mentioned functional devices and switch their functions.

[0114] The compressor 20, heat exchanger 30, and electrical control device 70 are all installed inside the housing 60. Specifically, the compressor 20 can be installed in the lower part of the housing 60. The piping assembly 10 includes a first connecting pipe 12, a second connecting pipe 13, a third connecting pipe 14, a fourth connecting pipe 15, and a fifth connecting pipe 16. The first connecting pipe 12, the second connecting pipe 13, and the third connecting pipe 14 are all located inside the housing 60, and all or part of the fourth connecting pipe 15 and the fifth connecting pipe 16 are located inside the housing 60.

[0115] The side wall 63 can be mechanically connected to the top wall 61 and the bottom wall 62 by welding, bolting or other means, which will not be described in detail in this embodiment.

[0116] The top wall 61, bottom wall 62 and side wall 63 enclose a shell 60 in the form of a box, thereby forming a receiving cavity. In order to achieve functional partitioning, the shell 60 in this embodiment also includes a partition 64, which is connected to the bottom wall 62, the top wall 61 and the side walls 63 on both sides, so that the partition 64 divides the receiving cavity into a first sub-cavity and a second sub-cavity.

[0117] The heat source heat exchanger 30 is located in an independent first sub-cavity, which can form a directional airflow channel, allowing the outside air to fully contact the heat exchanger fins to improve heat exchange efficiency, while avoiding interference from heat-generating components such as the compressor 20 on the inlet air temperature.

[0118] The compressor 20, heat exchanger 30, gas-liquid separator 50, and piping assembly 10 are located in the second sub-cavity. The electrical control device 70 can be partially located in the first sub-cavity and partially in the second sub-cavity, or the entire electrical control device 70 can be located in the second sub-cavity. The second sub-cavity can reduce the outward transmission of operating noise and can also reduce the vibration generated by the compressor 20 and other structures during operation through targeted structural design (such as shock-absorbing pads and sound-absorbing cotton).

[0119] This partitioned layout physically isolates high-temperature, high-pressure pipelines from low-temperature heat exchange areas, reducing unnecessary heat transfer losses and facilitating zoned maintenance of different functional modules. The partition 64 structure also enhances the overall rigidity of the shell 60, providing additional protection for internal components during transportation or installation, thus achieving a dual improvement in space utilization and equipment reliability.

[0120] Combined again with the appendix Figure 2 As shown, in this embodiment, the housing 60 is also designed as a structure with side air intake and front air exhaust. Specifically, the side wall 63 of this embodiment includes a front panel 631, a first side panel 632, a rear panel 633, and a second side panel 634.

[0121] The heat source heat exchanger 30 is located on the bottom wall 62. One side of the first side panel 632 is connected to one side of the front panel 631, and the other side of the first side panel 632 is connected to one side of the heat source heat exchanger 30. One side of the second side panel 634 is connected to the other side of the front panel 631, and the other side of the second side panel 634 is connected to the rear panel 633. The rear panel 633 is connected to the other side of the heat source heat exchanger 30. The top wall 61, bottom wall 62, front panel 631, first side panel 632 and second side panel 634 together form a receiving cavity.

[0122] In this embodiment, the partition 64 is installed inside the receiving cavity. The top wall 61, the front panel 631, the first side panel 632, the partition 64, the heat source heat exchanger 30, and the bottom wall 62 enclose the first sub-cavity. The top wall 61, the front panel 631, the second side panel 634, the partition 64, the heat source heat exchanger 30, and the bottom wall 62 enclose the second sub-cavity.

[0123] The first side panel 632 of this embodiment is provided with an air inlet communicating with the first sub-chamber, and the front panel 631 of this embodiment is provided with an air outlet 635 communicating with the first sub-chamber.

[0124] This side-intake, front-outtake housing structure 60 design has a positive impact on improving heat exchange efficiency. Specifically, because the independent air duct formed by the first sub-cavity allows cold outside air to be evenly drawn in through the air inlet of the first side panel 632, fully exchanged with the heat source heat exchanger 30, and then concentratedly discharged through the air outlet 635 of the front panel 631, avoiding the short-circuit airflow and heat backflow phenomena caused by traditional air intake methods. Moreover, the physical separation of the two sub-cavities by the partition 64 ensures that the heat from the second sub-cavity does not interfere with the air intake temperature of the first sub-cavity, keeping the heat source heat exchanger 30 in constant contact with the low-temperature fresh air and maintaining the optimal heat exchange temperature difference. The front-outtake method effectively increases the air handling capacity per unit time while reducing fan energy consumption.

[0125] Combined with appendix Figure 15 As shown, based on the heat source device 100 described above, this embodiment provides a heating and ventilation system, including an indoor unit 200 and the heat source device 100 described above, wherein the indoor unit 200 and the heat source device 100 are connected by pipes.

[0126] The indoor unit 200 of the HVAC equipment in this embodiment includes a load heat exchanger 40 and an indoor fan 90. The heat source device 100 includes a housing 60, a compressor 20, a heat source heat exchanger 30, a gas-liquid separator 50, an electrical control device 70, an outdoor fan 80, and a piping assembly 10. The piping assembly 10 includes a four-way valve 11, a first connecting pipe 12, a second connecting pipe 13, a third connecting pipe 14, a fourth connecting pipe 15, and a fifth connecting pipe 16. The first connecting pipe 12, the second connecting pipe 13, the third connecting pipe 14, and the fourth connecting pipe 15 are respectively connected to the four-way valve 11, and the fifth connecting pipe 16 is used to connect the heat source heat exchanger 30 and the load heat exchanger 40.

[0127] Specifically, the first connecting pipe 12 in this embodiment can be understood as the exhaust pipe of the HVAC equipment. One end of the first connecting pipe 12 is connected to the first interface 111, and the other end is used to connect to the exhaust port of the compressor 20, so that the high-temperature and high-pressure gaseous refrigerant discharged by the compressor 20 flows into the four-way valve 11, and participates in the refrigerant circulation through the four-way valve 11, the second connecting pipe 13, the third connecting pipe 14 and the fourth connecting pipe 15.

[0128] The second connecting pipe 13 in this embodiment can be understood as the return pipe of the HVAC equipment. One end of the second connecting pipe 13 is used to connect to the second interface 112, and the other end of the second connecting pipe 13 is used to connect to the return port of the compressor 20. The main function of the second connecting pipe 13 is to send the low-temperature and low-pressure gaseous refrigerant that has passed through the four-way valve 11 back to the compressor 20, thereby facilitating the circulation of the refrigerant.

[0129] In this embodiment, the third connecting pipe 14 is a function switching pipe. One end of the third connecting pipe 14 is connected to the third interface 113, and the other end of the third connecting pipe 14 is used to connect to the heat source heat exchanger 30. In the cooling mode of the HVAC equipment, the third connecting pipe 14 delivers the high-temperature, high-pressure gaseous refrigerant discharged from the compressor 20 to the first connecting pipe 12 to the heat source heat exchanger 30 for heat release. In the heating mode of the HVAC equipment, the third connecting pipe 14 delivers the refrigerant of the load heat exchanger 40 to the four-way valve 11.

[0130] In this embodiment, the fourth connecting pipe 15 is also a function switching pipe. One end of the fourth connecting pipe 15 is connected to the fourth interface 114, and the other end of the fourth connecting pipe 15 is used to connect to the load heat exchanger 40. In the cooling mode of the HVAC equipment, the fourth connecting pipe 15 sends the low-temperature, low-pressure gaseous refrigerant after the load heat exchanger 40 absorbs heat back to the compressor 20 through the four-way valve 11 and the second connecting pipe 13. In the heating mode of the HVAC equipment, the fourth connecting pipe 15 transports the high-temperature, high-pressure gaseous refrigerant discharged from the compressor 20 to the first connecting pipe 12 to the load heat exchanger 40 for heat release through the four-way valve 11 and the third connecting pipe 14.

[0131] The fourth connecting pipe 15 is equipped with a first filter 151 and a gas-side shut-off valve 152. The fifth connecting pipe 16 is equipped with a first expansion valve 161, a second filter 162, a liquid-side shut-off valve 163, and a second expansion valve 164. In this embodiment, a gas-liquid separator 50 is connected in series on the second connecting pipe 13. In the cooling or heating mode described below, the liquid-side shut-off valve 163 is used to open and close the fifth connecting pipe 16, and the gas-side shut-off valve 152 is used to open and close the sixth connecting pipe.

[0132] In cooling mode, compressor 20 discharges high-temperature, high-pressure refrigerant gas. First valve 121 opens, and the refrigerant gas enters four-way valve 11 through first connecting pipe 12. It then passes through third port 113 and third connecting pipe 14 into heat source heat exchanger 30 for condensation and heat release. The condensed liquid refrigerant enters fifth connecting pipe 16, and after being throttled by first expansion valve 161 and second expansion valve 164, and filtered by second filter 162, it enters load heat exchanger 40 for evaporation and heat absorption. The refrigerant gas after evaporation and heat absorption enters fourth port 114 through fourth connecting pipe 15, and then passes through second port 112, second connecting pipe 13, and gas-liquid separator 50 before finally returning to compressor 20.

[0133] In heating mode, compressor 20 discharges high-temperature, high-pressure refrigerant gas. After the first valve body 121 opens, the refrigerant gas enters the four-way valve 11 through the first connecting pipe 12, and then enters the load heat exchanger 40 through the fourth port 114 and the fourth connecting pipe 15 for condensation and heat release. In the fourth connecting pipe 15, the refrigerant needs to be filtered by the first filter 151. After condensation and heat release, the refrigerant enters the fifth connecting pipe 16, and then enters the heat source heat exchanger 30 for evaporation and heat absorption after throttling by the first expansion valve 161 and the second expansion valve 164 and filtration by the second filter 162. Subsequently, the refrigerant gas after evaporation and heat absorption returns to the expansion valve through the third connecting pipe 14, and is processed by the second port 112, the second connecting pipe 13, and the gas-liquid separator 50 before finally returning to compressor 20.

[0134] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention 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 the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A heat source device (100) applied to a refrigerant circulation system, characterized in that, include: The housing (60) contains a heat exchanger (30), a compressor (20), a piping assembly (10), and an electrical control device (70). The gas side of the heat exchanger (30) is connected to the compressor (20) via the piping assembly (10). The housing (60) has a maintenance port, and the electrical control device (70) is exposed in the maintenance port. The electronic control device (70) includes: The fixing assembly includes a mounting bracket (724) and a first heat dissipation module. The mounting bracket (724) is mounted on the housing (60). The first heat dissipation module includes a first heat-conducting element (722) and a cooling pipe (723) fixed to the first heat-conducting element (722). The first heat-conducting element (722) is mounted on the mounting bracket (724). The cooling pipe (723) is connected to the liquid side of the heat source heat exchanger (30) via the piping assembly (10). An electronic control assembly includes a circuit module and a second heat dissipation module. The circuit module includes a circuit board (726) and a plurality of electronic components (725) mounted on the circuit board (726). Among the plurality of electronic components (725), at least one target cooling component is included. The second heat dissipation module includes a second heat-conducting component (721). The at least one target cooling component is in thermal contact with the second heat-conducting component (721) and the two are fixedly connected. The electronic control component is detachably installed on the fixed component, and the electronic control component is closer to the maintenance port than the fixed component; the housing (60) surrounds the receiving cavity, and the housing (60) is provided with a partition (64) that divides the receiving cavity into a first sub-cavity and a second sub-cavity. The heat source heat exchanger (30) is located in the first sub-cavity, the compressor (20) and the piping assembly (10) are located in the second sub-cavity, and the electronic control device (70) is installed on the partition (64). Part of the electronic control device (70) is located in the first sub-cavity, and the other part is located in the second sub-cavity. When disassembling and repairing the electronic component (725), only the second heat-conducting component (721) needs to be removed, and there is no need to disconnect the first heat-conducting component (722) from the cooling pipe (723).

2. The heat source device (100) according to claim 1, characterized in that, The electronic control device (70) also includes a housing (71), which is mounted on the partition (64). The upper end of the housing (71) is open. The mounting bracket (724) is mounted on the housing (71). The fixing component and the electronic control component are at least partially located inside the housing (71).

3. The heat source device (100) according to claim 2, characterized in that, The top of the partition (64) is provided with a support portion (641) and a first connecting component (642) located on at least one side of the support portion (641). The support portion (641) is used to support the box body (71), and the first connecting component (642) is used to connect the box body (71).

4. The heat source device (100) according to claim 2, characterized in that, The electronic control device (70) further includes a first connector (74) which passes through the circuit board (726), the second heat-conducting component (721), and the first heat-conducting component (722) to make the fixing component and the electronic control component detachably connected.

5. The heat source device (100) according to claim 4, characterized in that, The electronic control device (70) also includes a cover (73), which covers the box body (71), the electronic control component is installed on the cover (73), and the first connector (74) passes through the cover (73).

6. The heat source device (100) according to claim 1, characterized in that, At least one positioning block (7262) is mounted on the side of the circuit board (726) facing the second heat-conducting component (721), and the second heat-conducting component (721) is positioned and engaged with the positioning block (7262).

7. The heat source device (100) according to claim 6, characterized in that, The positioning block (7262) is provided with one of a positioning protrusion and a positioning groove, and the second heat-conducting component (721) is provided with the other of the positioning protrusion and the positioning groove, and the positioning protrusion and the positioning groove are positioned and engaged.

8. The heat source device (100) according to any one of claims 1-7, characterized in that, The mounting bracket (724) is provided with a first positioning part (7242), and the first heat-conducting component (722) is provided with a second positioning part (7222). The first positioning part (7242) and the second positioning part (7222) are positioned and connected.

9. The heat source device (100) according to claim 8, characterized in that, The second heat-conducting component (721) is provided with a third positioning part, and the first positioning part (7242) is positioned and connected to the second positioning part (7222) and the third positioning part respectively.

10. The heat source device (100) according to claim 9, characterized in that, The first positioning part (7242) is a positioning post, the second positioning part (7222) is a positioning hole, and the third positioning part is a positioning groove. The second positioning part (7222) and the third positioning part are connected. The first positioning part (7242) is inserted into the second positioning part (7222) and the third positioning part to achieve positioning connection.

11. The heat source device according to any one of claims 2 to 5, characterized in that, The mounting bracket (724) has a first receiving portion (7241) on the side facing the first heat-conducting component (722), and the first heat-conducting component (722) has a second receiving portion (7221) on the side facing the mounting bracket (724). The first receiving portion (7241) and the second receiving portion (7221) together form a receiving space for accommodating the cooling pipe (723).

12. The heat source device according to claim 11, characterized in that, The length direction of the mounting bracket (724) is parallel to the length direction of the first heat-conducting element (722). The first receiving portion (7241) includes a first receiving groove with openings at both ends along the length direction of the mounting bracket (724). The second receiving portion (7221) includes a second receiving groove with openings at both ends along the length direction of the first heat-conducting element (722).

13. The heat source device according to claim 12, characterized in that, The mounting bracket (724) has a fourth positioning part (7243) and a first connecting part (7244) on the side away from the first heat-conducting component (722). The first connecting part (7244) is connected to the box body (71), and the fourth positioning part (7243) is positioned and connected to the box body (71).

14. The heat source device according to claim 13, characterized in that, The first connecting part (7244) is a buckle, and the fourth positioning part (7243) is a positioning post. The fourth positioning part (7243) is located between the two buckles, and the length of the fourth positioning part (7243) is greater than the length of the buckle.

15. The heat source device according to any one of claims 1 to 7, characterized in that, The second heat-conducting element (721) has a first surface (7212) and a second surface (7213) that are opposite or adjacent to each other. The first heat-conducting element (722) has a third surface (7224) facing the second heat-conducting element (721). The first surface (7212) is used to mount the electronic component (725). The second surface (7213) is in contact with the third surface (7224).

16. The heat source device according to claim 15, characterized in that, The first surface (7212) is provided with a recess (7214), at least a portion of which is configured to face the electronic component (725).

17. The heat source device according to claim 16, characterized in that, The recess (7214) includes a notch located on one or both sides of the first surface (7212) along the width direction.

18. The heat source device according to any one of claims 1 to 7, characterized in that, The second heat-conducting element (721) is detachably connected to the electronic component (725).

19. A heating, ventilation, and air conditioning (HVAC) device, characterized in that, Includes the heat source device as described in any one of claims 1-18.

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