Electrically-controlled heat dissipation structure, outdoor unit of heating, ventilation and air conditioning (HVAC) device, and HVAC device

Abstract

The present application relates to the technical field of heating, ventilation and air conditioning (HVAC) devices. Disclosed are an electrically-controlled heat dissipation structure, an outdoor unit of a HVAC device, and a HVAC device. The electrically-controlled heat dissipation structure comprises a housing, a heat dissipation assembly and an electric control member; one side wall of the housing is provided with a service access, and the heat dissipation assembly is mounted in the housing and faces the service access; the electric control member is mounted in the housing and is located between the service access and the heat dissipation assembly; the electric control member and the heat dissipation assembly are connected by means of a first connection structure, and the first connection structure comprises a first connection member, the first connection member being detachably connected to the electric control member and the heat dissipation assembly, and the disassembly direction of the first connection member facing the service access. During disassembly of the electric control member of the electrically-controlled heat dissipation structure of the present application, the electric control member can be taken out in the direction of the service access without bypassing the heat dissipation assembly, thus facilitating removal. The electric control member and the heat dissipation assembly are detachably connected by means of the first connection member, and the disassembly direction of the first connection member faces the service access, thereby facilitating operations from the service access when the electric control member needs to be disassembled and assembled.

Description

Electrically controlled heat dissipation structure, outdoor unit of HVAC equipment and HVAC equipment

[0001] Cross-references to related applications

[0002] This application claims priority and rights to the following patents, the entire contents of which are incorporated herein by reference:

[0003] A Chinese patent application filed on October 16, 2024, entitled "Electrically controlled heat dissipation structure, outdoor unit of HVAC equipment and HVAC equipment", with application number 202411448493.5;

[0004] Chinese patent application filed on October 16, 2024, entitled "Refrigerant heat dissipation assembly, outdoor unit of HVAC equipment and HVAC equipment", with application number 202422511151.5. Technical Field

[0005] This application relates to the field of heating, ventilation and air conditioning (HVAC) equipment technology, and in particular to an electrically controlled heat dissipation structure, an outdoor unit of HVAC equipment, and HVAC equipment. Background Technology

[0006] In related technologies, HVAC systems include electrical control components. The circuit boards in these components are equipped with diode modules, and the IPM modules in the inverter section are high-heat-generating power devices. To ensure that these high-heat-generating power devices do not exceed their rated operating temperature due to their own heat generation during operation, a separate heat dissipation component is usually installed and thermally connected to the high-heat-generating power devices. This reduces the operating temperature of the power devices and extends the service life of the electrical control components and the entire system.

[0007] However, adding an extra heat dissipation component creates some inconvenience in terms of installation, disassembly, and maintenance. Summary of the Invention

[0008] The purpose of this application is to at least solve the problem of inconvenience in disassembling, assembling, and maintaining electronic control components. This purpose is achieved through the following technical solution:

[0009] The first aspect of this application proposes an electrically controlled heat dissipation structure, comprising:

[0010] The housing has a maintenance opening on one side wall;

[0011] A heat dissipation assembly is installed inside the housing and is positioned facing the maintenance port;

[0012] An electrical control unit is installed inside the housing and located between the maintenance port and the heat dissipation assembly. The electrical control unit and the heat dissipation assembly are connected via a first connection structure. The first connection structure includes a first connector, which is detachably connected to the electrical control unit and the heat dissipation assembly. The detachment direction of the first connector is towards the maintenance port.

[0013] The electronically controlled heat dissipation structure of this application places the electronic control component between the maintenance port and the heat dissipation component, so that the electronic control component is installed in front of the heat dissipation component and closer to the maintenance port. Compared with the solution where the heat dissipation component is close to the maintenance port, when disassembling the electronic control component, it is not necessary to go around the heat dissipation component to remove it from the direction of the maintenance port, thereby preventing scratches on the heat dissipation component and avoiding inconvenience in the removal process. The electronic control component and the heat dissipation component are detachably connected via a first connector, and the disassembly direction of the first connector is towards the maintenance port, so that it is convenient to operate from the maintenance port when it is necessary to disassemble and install the electronic control component.

[0014] In addition, the electronically controlled heat dissipation structure according to this application may also have the following additional technical features:

[0015] In some embodiments of this application, the first connection structure further includes a first connecting part and a first mating part. The first connecting part is disposed on the electrical control, and the first mating part is disposed on the heat dissipation assembly. The first connecting part and the first mating part are connected to each other through the first connecting member.

[0016] The first connector includes a first bolt, the first connecting part includes a first bolt hole disposed on the electrical control, the first mating part includes a second bolt hole disposed on the heat dissipation assembly and corresponding to the first bolt hole, and the first bolt passes through the first bolt hole and connects with the second bolt hole.

[0017] In some embodiments of this application, the heat dissipation assembly is made of plastic, and a copper nut is provided in the second bolt hole, the inner wall of which is provided with internal threads.

[0018] In some embodiments of this application, there are multiple first bolts and multiple first bolt holes, with the multiple first bolt holes spaced apart along the length of the electrical control component, and the multiple second bolt holes spaced apart along the length of the heat dissipation component.

[0019] In some embodiments of this application, the heat dissipation assembly includes a fluid heat dissipation section and a back fixing section. The fluid heat dissipation section is through which cooling fluid passes, and the back fixing section is further away from the electrical control component than the fluid heat dissipation section. The second bolt hole is disposed on the back fixing section.

[0020] A power element is provided on the back of the electrical control unit. The power element is closer to the maintenance port than the fluid heat dissipation part. A heat-conducting component is provided between the power element and the fluid heat dissipation part. The two sides of the heat-conducting component contact the fluid heat dissipation part and the power element respectively. The heat-conducting component is provided with through holes corresponding to the first bolt hole and the second bolt hole.

[0021] The first connector passes sequentially through the first stud hole and the through hole along the insertion direction, and is threadedly connected to the second stud hole.

[0022] In some embodiments of this application, the fluid heat dissipation section is configured as a pipe structure, and the cooling fluid is a refrigerant flow.

[0023] The back of the heat-conducting component is provided with a mounting groove, and a portion of the fluid heat dissipation part is at least accommodated in the mounting groove and in contact with the groove surface of the mounting groove.

[0024] The front side of the heat-conducting component is in contact with the plane of the power element.

[0025] In some embodiments of this application, a pressing groove corresponding to the mounting groove is provided on the surface of the back fixing part. The fluid heat dissipation part is installed in the mounting groove and the pressing groove. The pressing groove is used to press the fluid heat dissipation part so that the fluid heat dissipation part is in contact with the heat-conducting element.

[0026] In some embodiments of this application, the fluid heat dissipation section includes a heat dissipation block made of thermally conductive material and a pipe structure fixed to the heat dissipation block, the cooling fluid is a refrigerant flow, and the side of the heat dissipation block facing the maintenance port is a plate structure.

[0027] The front side of the heat-conducting component is in contact with the plane of the power element, and the back side of the heat-conducting component is in contact with the plane of the fluid heat dissipation part.

[0028] In some embodiments of this application, the fluid heat dissipation section is configured as a finned structure, the cooling fluid is an airflow, and the side of the fluid heat dissipation section facing the maintenance port is configured as a plate.

[0029] The front side of the heat-conducting component is in contact with the plane of the power element, and the back side of the heat-conducting component is in contact with the plane of the fluid heat dissipation part.

[0030] In some embodiments of this application, the first connecting portion further includes a guide member, the guide member including a head and a plurality of elastic walls extending from the head, the plurality of elastic walls being arranged circumferentially to form the first bolt hole, the head being exposed on the front of the electrical control, and the plurality of elastic walls passing through the electrical control and being exposed on the back of the electrical control.

[0031] In some embodiments of this application, a limiting structure is provided between the heat-conducting component and the back side of the electrical control component. The limiting structure is provided with a through hole, which corresponds to the through hole. A latching part is provided on the hole wall of the limiting structure near the back side of the electrical control component. The latching part is located on the inner wall of the through hole. Multiple elastic walls extend into the through hole and are latched to the latching part. A limiting post is provided on the side of the limiting structure near the heat-conducting component. The through hole passes through the limiting post. A limiting groove is provided on the side of the heat-conducting component near the limiting structure. The limiting post and the limiting groove are guided and engaged. The first bolt passes through the first bolt hole, the through hole, and the through hole along the insertion direction and is threadedly connected to the second bolt hole.

[0032] In some embodiments of this application, the back side of the electrical control component is further provided with at least two positioning blocks, the plurality of power components are arranged along the height direction, the at least two positioning blocks are respectively disposed on both sides of the height direction, the back side of the positioning blocks is provided with positioning grooves, the two ends of the heat-conducting component are respectively positioned in the two positioning grooves, and a fixing member passes through the front of the electrical control component and through the positioning blocks to be threadedly connected to one end of the heat-conducting component.

[0033] In some embodiments of this application, a first positioning structure is provided between the heat-conducting component and the back fixing part. The first positioning structure includes a first positioning part disposed on the heat-conducting component and a first positioning mating part disposed on the back fixing part. The first positioning mating part is positioned and connected to the first positioning part and is guided and mated during the connection process.

[0034] In some embodiments of this application, the first positioning part includes one of a first positioning post and a first positioning hole, and the first positioning mating part includes the other of a first positioning post and a first positioning hole. The first positioning post and the first positioning hole are positioned and connected and guided to fit during the connection process.

[0035] In some embodiments of this application, there are multiple first positioning posts and multiple first positioning holes, with the multiple first positioning posts spaced apart along the length direction of the back fixing part and the multiple first positioning holes spaced apart along the length direction of the heat-conducting component.

[0036] In some embodiments of this application, the electronically controlled heat dissipation structure further includes a mounting plate, and a second positioning structure is provided between the electronic control component and the mounting plate. The second positioning structure includes a second positioning part disposed on the electronic control component and a second positioning mating part disposed on the mounting plate.

[0037] In some embodiments of this application, the mounting plate is provided with a clearance notch, the clearance notch extends along the length direction of the heat-conducting element, the heat-conducting element is placed in the clearance notch, and is connected to the fluid heat dissipation part and the back fixing part.

[0038] In some embodiments of this application, the fluid heat dissipation section includes a heat dissipation pipe, the heat dissipation pipe including at least two straight pipe sections arranged at intervals along a first direction, the straight pipe sections extending along a second direction, the first direction intersecting the second direction, and the length of the straight pipe section being greater than or equal to the length of the clearance gap.

[0039] In some embodiments of this application, the mounting groove extends through both ends of the heat-conducting element along its length, a portion of the straight tube is accommodated within the mounting groove, and the end of the straight tube is flush with the end of the mounting groove or extends beyond the end of the mounting groove.

[0040] In some embodiments of this application, the fluid heat dissipation section further includes a fixing reinforcement member, which is connected to at least two of the straight pipe sections respectively, and the fixing reinforcement member is used to define the distance between two adjacent straight pipe sections.

[0041] In some embodiments of this application, a second connection structure is provided between the back fixing part and the mounting plate. The second connection structure includes a second connecting part and a second mating part. The second connecting part is disposed on the back fixing part, and the second mating part is disposed on the mounting plate. The second connecting part and the second connecting mating part mate with each other.

[0042] In some embodiments of this application, the second connecting portion includes one of a snap-fit ​​arm and a slot, and the second mating portion includes the other of a snap-fit ​​arm and a slot, wherein the snap-fit ​​arm mates with the slot.

[0043] In some embodiments of this application, there are multiple snap-fit ​​arms and multiple snap-fit ​​slots. Multiple snap-fit ​​arms are respectively disposed on both sides of the back fixing part and are spaced apart along the length direction of the back fixing part. Multiple snap-fit ​​slots are respectively disposed on the mounting plate and are spaced apart along the length direction of the mounting plate.

[0044] A second aspect of this application provides an outdoor unit for a heating and ventilation system, including an electronically controlled heat dissipation structure as described in any of the preceding claims, wherein the housing of the electronically controlled heat dissipation structure includes a front panel, a right front panel, and a right rear panel connected together, and the right front panel covers the maintenance port of the electronically controlled heat dissipation structure.

[0045] In some embodiments of this application, the housing further includes a chassis and a partition plate disposed on the chassis. The partition plate divides the inner cavity of the housing into a fan chamber and a machine chamber. A mounting bracket is connected to the side of the partition plate facing the machine chamber, and the electrically controlled heat dissipation structure is mounted in the machine chamber through the mounting bracket.

[0046] In some embodiments of this application, the electrical control unit includes a first electrical control board and a second electrical control board connected together, and the first electrical control board and the second electrical control board are respectively connected to the mounting bracket. The first electrical control board is a main control board, the second electrical control board is a drive board, and a power element is provided on the second electrical control board. The first electrical control board is closer to the maintenance port than the second electrical control board.

[0047] In some embodiments of this application, the housing further includes a side panel with a maintenance window disposed opposite to the central partition, and the extension direction of the electronically controlled heat dissipation structure is parallel to the extension direction of the right front panel.

[0048] In some embodiments of this application, the housing further includes a side panel with a maintenance window disposed opposite to the central partition, and the end of the electronically controlled heat dissipation structure near the maintenance window extends obliquely toward the side away from the right front panel.

[0049] A third aspect of this application provides a heating, ventilation, and air conditioning (HVAC) system, including an indoor unit and an outdoor unit as described in any of the preceding claims, wherein the indoor unit and the outdoor unit are connected by piping. Attached Figure Description

[0050] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0051] Figure 1 schematically illustrates a structural diagram of an electronically controlled heat dissipation structure according to an embodiment of this application;

[0052] Figure 2 is a cross-sectional view of section AA in Figure 1;

[0053] Figure 3 is a cross-sectional view of section BB in Figure 1;

[0054] Figure 4 is an enlarged view of point C in Figure 2;

[0055] Figure 5 is an enlarged view of point D in Figure 3;

[0056] Figure 6 schematically illustrates a structural diagram of an electronically controlled heat dissipation structure according to another embodiment of the present application;

[0057] Figure 7 schematically shows a structural diagram of the guide component of the electronically controlled heat dissipation structure according to an embodiment of the present application;

[0058] Figure 8 schematically shows a top view of the guide component of the electrically controlled heat dissipation structure according to an embodiment of the present application;

[0059] Figure 9 is a cross-sectional view of EE in Figure 8;

[0060] Figure 10 is a cross-sectional view of FF in Figure 8;

[0061] Figure 11 schematically shows a partial structural diagram of the electrically controlled heat dissipation structure according to an embodiment of the present application from a first view.

[0062] Figure 12 schematically shows a partial structural diagram of the electrically controlled heat dissipation structure according to an embodiment of the present application from a second perspective;

[0063] Figure 13 schematically shows a partial assembly diagram of the electronically controlled heat dissipation assembly according to an embodiment of the present application;

[0064] Figure 14 schematically shows a partial exploded view of the electrically controlled heat dissipation structure according to an embodiment of the present application;

[0065] Figure 15 schematically shows a partial assembly diagram of the electronically controlled heat dissipation structure according to an embodiment of this application;

[0066] Figure 16 is an enlarged view of point G in Figure 15;

[0067] Figure 17 is an enlarged view of point H in Figure 15;

[0068] Figure 18 is an enlarged view of point I in Figure 15;

[0069] Figure 19 schematically shows a structural diagram of the positioning block of the electronically controlled heat dissipation structure according to an embodiment of the present application;

[0070] Figure 20 schematically shows a structural diagram of the back fixing part of the electronically controlled heat dissipation structure according to an embodiment of the present application;

[0071] Figure 21 is an enlarged view of point J in Figure 16;

[0072] Figure 22 is an enlarged view of point K in Figure 16;

[0073] Figure 23 schematically shows a structural diagram of an outdoor unit of a heating, ventilation, and air conditioning system according to an embodiment of this application;

[0074] Figure 24 schematically shows an assembly diagram of an outdoor unit of a heating, ventilation, and air conditioning system according to an embodiment of this application;

[0075] Figure 25 schematically shows a partial structural diagram of an outdoor unit of a heating, ventilation, and air conditioning system according to an embodiment of this application;

[0076] Figure 26 schematically shows an installation diagram of the electrically controlled heat dissipation structure of an outdoor unit of a heating and ventilation system according to an embodiment of this application;

[0077] Figure 27 schematically shows a second installation diagram of the electrically controlled heat dissipation structure of the outdoor unit of a heating and ventilation equipment according to an embodiment of this application;

[0078] Figure 28 schematically shows the installation diagram three of the electrically controlled heat dissipation structure of the outdoor unit of the HVAC equipment according to an embodiment of this application;

[0079] Figure 29 schematically illustrates the structure of an outdoor unit of a heating, ventilation, and air conditioning system according to an embodiment of this application;

[0080] Figure 30 schematically illustrates the structure of an outdoor unit of a heating, ventilation, and air conditioning system according to another embodiment of the present application;

[0081] Figure 31 schematically shows a structural diagram of the refrigerant circulation system of a heating, ventilation, and air conditioning (HVAC) device according to an embodiment of this application.

[0082] The attached diagrams are labeled as follows: 1000, HVAC equipment; 100, HVAC outdoor unit; 101, heat source heat exchanger; 102, liquid-side shut-off valve; 103, gas-side shut-off valve; 200, HVAC indoor unit; 201, load heat exchanger; 300, external gas pipe; 301, gas-side external interface; 400, external liquid pipe; 401, liquid-side external interface; 500, four-way valve; 501, first interface; 502, second interface; 503, third interface; 504, fourth interface; 600, compressor; 601, exhaust pipe; 602, return gas pipe; 700, oil separator; 800, gas-liquid separator; 900, electrically controlled heat dissipation structure; 1. Housing; 10. Air Inlet; 11. Maintenance Port; 12. Front Panel; 13. Right Front Panel; 14. Right Rear Panel; 151. Chassis; 152. Top Plate; 16. Central Partition; 161. Ventilation Opening; 17. Mounting Bracket; 18. Side Panel; 181. Maintenance Window; 191. Fan Chamber; 192. Mechanical Chamber; 2. Heat Conducting Components; 21. Mounting Groove; 22. Through Hole; 3. Fluid Heat Dissipation Section; 31. Heat Dissipation Pipe; 311. Straight Pipe Section; 312. Bend Section; 313. Fixing Reinforcement Component; 32. Cooling Fluid; 33. Heat Dissipation Block; 4. Back Fixing Section; 41. Pressing Groove; 5. Electrical Control Components; 51. First Electrical Control Board; 511. Connecting Plate; 52. Second Electrical Control Board; 521. Power Component; 53. Clearance Hole; 61. First connector; 611. First bolt; 62. First connecting part; 621. First bolt hole; 63. First mating part; 631. Second bolt hole; 64. Copper nut; 65. Guide component; 651. Head; 652. Elastic wall; 6521. Buckle; 66. Limiting structure; 661. Through hole; 662. Buckle part; 67. Limiting groove; 68. Limiting post; 69. Positioning block; 691. Positioning groove; 692. Fixing component; 71. First positioning part; 711. First positioning hole; 72. First positioning mating part; 721. First positioning post; 73. Second positioning part; 731. Second positioning hole; 74. Second positioning mating part; 741. Second positioning post; 8. Mounting plate; 81. Clearing notch; 91. Second connecting part; 911. Snap-fit ​​arm; 92. Second mating part; 921. Snap groove; X. Disassembly direction. Detailed Implementation

[0083] The embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of this application by way of example, but should not be used to limit the scope of this application, that is, this application is not limited to the described embodiments.

[0084] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationships, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. "Vertical" is not vertical in the strict sense, but within the allowable tolerance range. "Parallel" is not parallel in the strict sense, but within the allowable tolerance range.

[0085] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0086] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0087] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0088] In this application, "multiple" means two or more (including two).

[0089] As shown in Figures 1 to 22, according to an embodiment of this application, an electronically controlled heat dissipation structure 900 is proposed, including a housing 1, a heat dissipation assembly, and an electronic control unit 5. A maintenance port 11 is provided on one side wall of the housing 1. The maintenance port 11 is an operation entrance reserved for subsequent maintenance, repair, or replacement of the electronic control unit 5 and / or the heat dissipation assembly. The heat dissipation assembly is installed inside the housing 1 and faces the maintenance port 11. The electronic control unit 5 is installed inside the housing 1 and is located between the maintenance port 11 and the heat dissipation assembly. The electronic control unit 5 and the heat dissipation assembly are connected via a first connection structure. The first connection structure includes a first connector 61. The first connector 61 is detachably connected to the electronic control unit 5 and the heat dissipation assembly. The disassembly direction X of the first connector 61 faces the maintenance port 11, so that maintenance personnel can directly complete the disassembly through the maintenance port 11 without complicated operations and reduce interference to other internal parts during the disassembly and assembly process.

[0090] The electronically controlled heat dissipation structure 900 of this application places the electronic control component 5 between the maintenance port 11 and the heat dissipation component, so that the electronic control component 5 is installed in front of the heat dissipation component and closer to the maintenance port 11. Compared with the solution where the heat dissipation component is closer to the maintenance port 11, when disassembling the electronic control component 5, it is not necessary to go around the heat dissipation component to remove it from the direction of the maintenance port 11, thereby preventing scratches on the heat dissipation component and avoiding inconvenience in the removal work. The electronic control component 5 and the heat dissipation component are detachably connected via the first connector 61, and the disassembly direction of the first connector 61 is towards the maintenance port 11, so that it is convenient to operate from the maintenance port 11 when it is necessary to disassemble and install the electronic control component 5.

[0091] In some embodiments of this application, the first connection structure further includes a first connecting portion 62 and a first mating portion 63. The first connecting portion 62 is disposed on the electrical control 5, and the first mating portion 63 is disposed on the heat dissipation assembly. The first connecting portion 62 and the first mating portion 63 are connected to each other through the first connecting member 61. The first connecting member 61 includes a first bolt 611, the first connecting portion 62 includes a first bolt hole 621 disposed on the electrical control 5, and the first mating portion 63 includes a second bolt hole 631 disposed on the heat dissipation assembly and corresponding to the first bolt hole 621. The first bolt 611 passes through the first bolt hole 621 and is connected to the second bolt hole 631.

[0092] The electrical control unit 5 and the heat dissipation component are detachably connected through a first connection structure. This first connection structure includes a first bolt hole 621 on the electrical control unit 5 and a second bolt hole 631 on the heat dissipation component. The two are positioned opposite each other, and the two are fixed together by a first bolt 611 passing through the first bolt hole 621 and the second bolt hole 631. By arranging the electrical control unit 5 and the heat dissipation component close to the maintenance port 11 and using a detachable bolt connection, this structure not only achieves a stable connection and efficient heat dissipation between the electrical control unit 5 and the heat dissipation component, but also allows the two to be easily disassembled and installed directly from the maintenance port 11, simplifying maintenance operations and improving disassembly and assembly efficiency and maintenance convenience.

[0093] In some embodiments of this application, the heat dissipation component is made of plastic, and a copper nut 64 is provided in the second bolt hole 631, with internal threads on the inner wall of the copper nut 64.

[0094] As shown in Figures 20 and 21, the heat dissipation component is made of plastic and has a second bolt hole 631 for connecting to the electrical control 5. A copper nut 64 is fixedly installed in the second bolt hole 631, and the inner wall of the copper nut 64 is machined with a standard internal thread. Since the plastic material itself has low strength and poor self-tapping performance, directly tapping or forming a threaded hole on the plastic part can easily lead to stripped threads, loose connection, or loose bolts. Therefore, by embedding a metal copper nut 64 in the second bolt hole 631, the structural strength and connection reliability of the connection point on the plastic heat dissipation component are enhanced. The internal thread on the inner wall of the copper nut 64 forms a reliable fit with the bolt, thereby achieving a stable threaded connection. This takes into account both structural function and processing feasibility, and improves the overall durability and maintenance convenience of the connection.

[0095] In some embodiments of this application, as shown in FIG3, there are multiple first bolts 611 and multiple first bolt holes 621. The multiple first bolt holes 621 are spaced apart along the length of the electrical control component 5, and the multiple second bolt holes 631 are spaced apart along the length of the heat dissipation assembly. Multiple first bolts 611 for connecting the electrical control component 5 and the heat dissipation assembly, and multiple first bolt holes 621 that mate with the first bolts 611, are provided. The multiple first bolt holes 621 are evenly spaced along the length of the electrical control component 5, and the multiple second bolt holes 631 are also correspondingly spaced along the length of the heat dissipation assembly. Each first bolt hole 621 corresponds one-to-one with the corresponding second bolt hole 631. By using multiple bolt connection points to evenly fix the electrical control component 5 and the heat dissipation assembly at multiple points, not only is the stability and vibration resistance of the connection significantly improved, preventing the electrical control component 5 from loosening or shifting, but the forces on both are also more balanced, avoiding local stress concentration and ensuring heat dissipation effect and structural reliability.

[0096] In some embodiments of this application, the heat dissipation assembly includes a fluid heat dissipation section 3 and a back fixing section 4. The fluid heat dissipation section 3 allows cooling fluid 32 to pass through. The back fixing section 4 is further away from the control unit 5 than the fluid heat dissipation section 3. A second bolt hole 631 is provided on the back fixing section 4. A power element 521 is provided on the back of the control unit 5. The power element 521 is closer to the maintenance port 11 than the fluid heat dissipation section 3. A heat-conducting element 2 is provided between the power element 521 and the fluid heat dissipation section 3. The two sides of the heat-conducting element 2 contact the fluid heat dissipation element and the power element 521 respectively. The heat-conducting element 2 is provided with through holes 22 corresponding to the first bolt hole 621 and the second bolt hole 631. The first connector 61 passes through the first stud hole and the through hole 22 in sequence along the insertion direction and is threadedly connected to the second stud hole.

[0097] As shown in Figures 2 to 5, the fluid heat dissipation section 3 is used to allow cooling fluid 32 (such as air, liquid, etc.) to pass through, so as to achieve heat dissipation function; the back fixing section 4 is located behind the fluid heat dissipation section 3, that is, on the side further away from the electrical control 5, and the back fixing section 4 is used to provide fixed support; the back of the electrical control 5, that is, the side in contact with the heat dissipation component, integrates power components 521, such as power chips, MOSFETs and other high heat-generating components. These power components 521 are located closer to the maintenance port 11 relative to the fluid heat dissipation section 3, that is, the power components 521 are located near the maintenance port; in order to efficiently conduct the heat generated by these high-heat power components 521 to the fluid heat dissipation section 3, a heat-conducting component 2 is provided between the two. In this embodiment, the heat-conducting component 2 is an aluminum block. Aluminum has a high thermal conductivity, which can quickly conduct the heat generated by the power components 521 to the fluid heat dissipation section 3, and then carry it away through the internal refrigerant flow, thereby improving the overall heat dissipation efficiency. The heat-conducting component 2 is in close contact with the fluid heat dissipation part 3 and the power element 521 on both sides, forming a good heat conduction path. The heat of the power element 521 is quickly transferred to the fluid heat dissipation part 3 and carried away by the cooling fluid 32. At the same time, the heat-conducting component 2 is also provided with through holes 22 corresponding to the first bolt hole 621 and the second bolt hole 631. The first bolt 611 passes through the first bolt hole 621 on the control component 5 and the through hole 22 on the heat-conducting component 2 in sequence according to the insertion direction, and then is threaded to the second bolt hole 631, thereby firmly connecting the control component 5, the heat-conducting component 2 and the heat dissipation assembly together.

[0098] As shown in Figure 4, in some examples, the fluid heat dissipation part 3 is optionally configured as a pipe structure, the cooling fluid 32 is a refrigerant flow, the back of the heat conductor 2 is provided with a mounting groove 21, a part of the fluid heat dissipation part 3 is at least accommodated in the mounting groove 21 and in contact with the groove surface of the mounting groove 21, and the front side of the heat conductor 2 is in contact with the plane of the power element 521.

[0099] The fluid heat dissipation section 3 is a pipe with a specific direction and internal channels, namely a heat dissipation pipe 31. A refrigerant (such as refrigerant or coolant) flows inside the heat dissipation pipe 31, carrying away heat and achieving efficient heat dissipation. A mounting groove 21 is machined on the side of the heat-conducting component 2 that contacts the heat dissipation pipe 31. This mounting groove 21 is a recessed structure, its shape adapted to the shape of the heat dissipation pipe 31, allowing at least a portion of the heat dissipation pipe 31 to be embedded in the mounting groove 21, forming direct surface-to-surface contact with the groove surface. This ensures a tighter fit between the heat-conducting component 2 and the heat dissipation pipe 31, improving heat transfer efficiency. The electrical control unit 5 has a clearance hole 53, through which a bolt passes to connect to the power element 521, and then to the heat-conducting component 2 via a threaded connection. The front side of the heat-conducting component 2 maintains planar contact with the power element 521 integrated on the back of the electrical control unit 5, ensuring that the heat generated by the power element 521 is efficiently conducted to the heat-conducting component 2. Multiple first bolts 611 pass sequentially through the first bolt hole 621 on the electrical control 5, the through hole 22 on the heat-conducting component 2, and are then threadedly connected to the second bolt hole 631 on the back fixing part 4 of the heat dissipation assembly. This ensures mechanical reliability while maintaining the continuity and tightness of the heat conduction path.

[0100] As shown in Figure 4, in some examples, optionally, a clamping groove 41 corresponding to the mounting groove 21 is provided on the surface of the back fixing part 4. The fluid heat dissipation part 3 is installed in the mounting groove 21 and the clamping groove 41. The clamping groove 41 is used to clamp the fluid heat dissipation part 3 so that the fluid heat dissipation part 3 fits against the heat-conducting component 2. A part of the refrigerant pipe is simultaneously embedded in the mounting groove 21 on the back of the heat-conducting component 2 and the clamping groove 41 on the surface of the back fixing part 4. The clamping groove 41 applies a clamping force from the back of the fluid heat dissipation part 3, making it fit tightly against the mounting groove 21 on the heat-conducting component 2. After fixing, the relative position between the refrigerant pipe and the heat-conducting component 2 remains stable, enhancing the mechanical reliability of the overall structure. At the same time, it can also ensure the continuity of the heat conduction path and the good heat conduction effect, thereby improving the overall heat dissipation performance.

[0101] As shown in Figure 6, in some examples, optionally, the fluid heat dissipation section 3 includes a heat dissipation block 33 made of thermally conductive material and a pipe structure fixed on the heat dissipation block 33. The cooling fluid 32 is a refrigerant flow. The side of the heat dissipation block 33 facing the maintenance port 11 is a plate structure, that is, this side is a relatively flat plane, which facilitates surface contact with the heat-conducting component 2. The power element 521 integrated on the back of the electrical control 5 maintains planar contact with the front side of the heat-conducting component 2, that is, the side facing the electrical control 5, which increases the contact area between the heat conduction interfaces, so that the heat generated by the power element 521 can be directly and uniformly conducted to the heat-conducting component 2. The back side of the heat-conducting component 2, that is, the side facing the heat dissipation block 33, maintains planar contact with the plate structure of the heat dissipation block 33, so that the heat can be quickly and stably conducted from the high-heat area in the electrical control 5 to the fluid heat dissipation section 3, and carried away by the flowing refrigerant flow in time, thereby effectively reducing the operating temperature of the electrical control 5 and ensuring the stable operation and service life of the equipment.

[0102] In some examples, the fluid heat dissipation section 3 is optionally configured as a finned structure, i.e., a structure composed of multiple slender, densely arranged heat dissipation fins. This structure can effectively increase the heat dissipation surface area, thereby improving the heat exchange efficiency with the surrounding air. The cooling fluid 32 is an airflow, which removes heat from the fin surface to achieve heat dissipation. The side of the fluid heat dissipation section 3 facing the maintenance port 11 is configured as a plate, i.e., this surface is a relatively flat plane, which facilitates good contact and positioning with the heat-conducting component 2 and increases the contact area between the heat conduction interfaces, thereby reducing the heat generated by the power element 521. The heat generated by the power element 521 can be directly and evenly conducted to the heat-conducting component 2. The power element 521 integrated on the back of the control unit 5 is in planar contact with the front side of the heat-conducting component 2, that is, the side facing the control unit 5, so that the heat generated by the power element 521 can be directly and evenly conducted to the heat-conducting component 2. The back side of the heat-conducting component 2, that is, the side facing the heat dissipation component, is also in planar contact with the plate-like side of the fin structure, so that the heat can be quickly and stably conducted from the high-heat area in the control unit 5 to the fluid heat dissipation part 3, and carried away by the flowing refrigerant in time, thereby effectively reducing the operating temperature of the control unit 5 and ensuring the stable operation and service life of the equipment.

[0103] In some embodiments of this application, the first connecting portion 62 further includes a guide member 65, which includes a head 651 and a plurality of elastic walls 652 extending from the head 651. The plurality of elastic walls 652 are arranged circumferentially to form a first bolt hole 621. The head 651 is exposed on the front side of the electrical control 5, and the plurality of elastic walls 652 pass through the electrical control 5 and are exposed on the back side of the electrical control 5.

[0104] As shown in Figures 5 and 7 to 10, the control unit 5 includes a circuit board. The head 651 is the visible portion of the guide component 65 located on one side of the front of the control unit 5. The diameter of the head 651 is slightly larger than the shape of the opening on the surface of the control unit 5, allowing the head 651 to be exposed on the front of the control unit 5. Multiple elastic walls 652 extend from the head 651 towards the back of the control unit 5, and are evenly distributed circumferentially, forming a hollow cylindrical or near-cylindrical structure. This hollow portion is the first bolt hole 621, used for the insertion of the first bolt 611. The head 651 is exposed on the front of the circuit board, thus guiding the operator to the installation position of the first bolt 611. The multiple elastic walls 652 pass through the circuit board and are exposed on the back of the circuit board, forming the first bolt hole 621. The inner wall of the elastic walls gradually tapers along the insertion direction of the first bolt 611, thereby guiding and correcting the insertion of the first bolt 611. Multiple elastic arms 652 are provided with buckles 6521. After passing through the circuit board, multiple elastic walls 652 enter the through hole 661 of the limiting structure 66 and cooperate with the buckles 6521 to restrict the guide component 65 from being dislodged from the circuit board.

[0105] In some embodiments of this application, as shown in FIG5, a limiting structure 66 is provided between the heat-conducting component 2 and the back side of the electrical control component 5. The limiting structure 66 is provided with a through hole 661, which corresponds to the through hole 22. A latching part 662 is provided on the hole wall of the limiting structure 66 near the back side of the electrical control component 5. The latching part 662 is provided on the inner wall of the through hole 661. Multiple elastic walls 652 extend into the through hole 661 and are connected to the latching part 662 to latch 6521, thereby realizing a stable connection and pre-positioning between the limiting structure 66 and the guiding component 65, and preventing the components from sliding or misaligning relative to each other during assembly. A limiting post 68 is provided on the side of the limiting structure 66 near the heat-conducting component 2. A through hole 661 passes through the limiting post 68. The wall of the limiting post 68 is adapted to the limiting groove 67 on the front of the heat-conducting component 2. A through hole 22 is provided at the bottom of the limiting groove 67. The first bolt hole 621 corresponds to the through hole 22 of the heat-conducting component 2. A limiting groove 67 is also provided on the back of the heat-conducting component 2, which is mutually guided and adapted to the back fixing part 4, so that the through hole 22 of the heat-conducting component 2 corresponds to the second bolt hole 631 of the back fixing part 4. A limiting groove 67 is provided on the side of the heat-conducting component 2 near the limiting structure 66. The limiting post 68 is guided and fitted with the limiting groove 67. The first bolt 611 passes through the first bolt hole 621, the through hole 661, the through hole 22, and is threadedly connected to the second bolt hole 631 along the insertion direction.

[0106] During installation, the operator identifies the position of head 651 and inserts the first bolt 611. Multiple elastic walls 652 guide the first bolt 611 through. After passing through the first bolt hole 621, the first bolt 611 exits through the through hole 661. Since the through hole 661 passes through the limiting post 68, and the limiting post 68 and the heat-conducting component 2 are mutually guided and adapted, the first bolt 611 can be inserted into the corresponding through hole 22 after exiting the through hole 661. After passing through the through hole 22, the first bolt 611 is then threaded into the corresponding stud hole. Because the heat dissipation component is located on the circuit board... On the back side, the first bolt 611 is inconvenient to insert due to "blind insertion". By using the guide component 65 to guide the first bolt 611, the cooperation between the heat-conducting component 2 and the limiting structure 66, the cooperation between the limiting structure 66 and the heat-conducting component 2, and the guiding cooperation between the heat-conducting component 2 and the back fixing part 4, the first bolt 611 can be accurately inserted into the second stud hole 631, which is convenient and quick to install. The first bolt 611 fixes the heat-conducting component 2 to the heat dissipation component, thereby ensuring the contact area between the heat-conducting component 2 and the heat dissipation component and effectively increasing the heating efficiency of the power component 521.

[0107] In some embodiments of this application, as shown in Figures 15 and 19, the back side of the electrical control 5 is further provided with at least two positioning blocks 69, and multiple power elements 521 are arranged along the height direction. The at least two positioning blocks 69 are respectively provided on both sides of the height direction. The back side of the positioning blocks 69 is provided with positioning grooves 691. The positioning grooves 691 are recessed guide structures used to accommodate the ends of the heat-conducting components 2, so that the heat-conducting components 2 can be accurately embedded in the two positioning grooves 691, thereby being reliably positioned in the horizontal direction. The two ends of the heat-conducting components 2 are respectively positioned in the two positioning grooves 691. A fixing member 692 passes through the electrical control 5 from the front side and through the positioning blocks 69 and is threadedly connected to one end of the heat-conducting components 2. By setting the positioning block 69, the heat-conducting component 2 can be positioned and fixed to ensure the accurate relative position between the heat-conducting component 2 and the electrical control component 5, and between the heat-conducting component 2 and the power component 521. In addition, in order to further enhance the connection stability between the heat-conducting component 2, the electrical control component 5, and the positioning block 69, a fixing component 692 is also provided. The fixing component 692 passes through the electrical control component 5 itself and the positioning block 69 from the front, and finally achieves a threaded connection with one end of the heat-conducting component 2, thereby firmly fixing the heat-conducting component 2, the positioning block 69, and the electrical control component 5 together.

[0108] In some embodiments of this application, a first positioning structure is provided between the heat-conducting component 2 and the back fixing part 4. The first positioning structure includes a first positioning part 71 disposed on the heat-conducting component 2 and a first positioning mating part 72 disposed on the back fixing part 4. The first positioning mating part 72 is positioned and connected to the first positioning part 71 and is guided and engaged during the connection process. The connection between the back fixing part 4 and the heat-conducting component 2 is precisely pre-positioned by the first positioning part 71 and the first positioning mating part 72, which facilitates assembly and reduces the shaking of the heat-conducting component 2, the back fixing part 4 and the fluid heat dissipation part 3, keeping the heat dissipation assembly as a whole stable, thereby efficiently dissipating heat for the electrical control component 5, improving heat dissipation efficiency and ensuring the working stability of the electrical control component 5.

[0109] In some embodiments of this application, the first positioning part 71 includes one of a first positioning post 721 and a first positioning hole 711, and the first positioning mating part 72 includes the other of a first positioning post 721 and a first positioning hole 711. The first positioning post 721 and the first positioning hole 711 are positioned and connected and guided to engage during the connection process. As shown in FIG5, in this embodiment, the heat-conducting component 2 is provided with a plurality of first positioning holes 711, which are spaced apart along the length direction of the heat-conducting component 2. The back fixing part 4 is provided with a plurality of first positioning posts 721, which correspond one-to-one with the plurality of first positioning holes 711. During the assembly of the heat dissipation assembly, the plurality of first positioning posts 721 on the back fixing part 4 are positioned and connected one-to-one with the plurality of first positioning holes 711 on the heat-conducting component 2 to accurately pre-position the back fixing part 4 and the heat-conducting component 2, reducing the relative movement between the back fixing part 4 and the heat-conducting component 2, keeping the heat dissipation assembly as a whole stable, and improving the heat dissipation efficiency.

[0110] In other embodiments, a first positioning hole 711 may be provided on the back fixing part 4, and a first positioning post 721 may be provided on the heat-conducting part 2. The number and arrangement of the first positioning post 721 and the first positioning hole 711 may also be set according to the requirements, and no specific limitation is made here.

[0111] In some embodiments of this application, the electronically controlled heat dissipation structure 900 further includes a mounting plate 8. A second positioning structure is provided between the electronic control unit 5 and the mounting plate 8. The second positioning structure includes a second positioning part 73 disposed on the electronic control unit 5 and a second positioning mating part 74 disposed on the mounting plate 8. By providing a second positioning structure between the electronic control unit 5 and the mounting plate 8, the relative movement between the electronic control unit 5 and the mounting plate 8 can be restricted, further reducing the relative movement between the electronic control unit 5 and the mounting plate 8, ensuring the overall stability of the heat dissipation assembly, and improving heat dissipation efficiency.

[0112] As shown in Figure 15, in this embodiment, the electronic control board is provided with a plurality of second positioning holes 731, which are spaced apart along the circumferential edge of the electronic control board. The mounting plate 8 is provided with a plurality of second positioning posts 741, which are spaced apart along the circumferential edge of the mounting plate 8. Each of the second positioning posts 741 corresponds one-to-one with one of the second positioning holes 731. During the assembly of the refrigerant heat dissipation assembly, the multiple second positioning posts 741 on the mounting plate 8 correspond one-to-one with the multiple second positioning holes 731 on the electronic control board to position the electronic control board and the mounting plate 8, reducing relative movement between the two and ensuring the overall stability of the refrigerant heat dissipation assembly, thereby improving heat dissipation efficiency.

[0113] In some embodiments of the present invention, there are multiple second positioning posts 741 and multiple second positioning holes 731. Multiple second positioning posts 741 are spaced apart on the side of the mounting plate 8 facing the electrical control 5, and multiple second positioning holes 731 are spaced apart along the length direction of the heat-conducting component 2.

[0114] In some embodiments of this application, as shown in FIG14, a clearance notch 81 is provided on the mounting plate 8. The clearance notch 81 extends along the length direction of the heat-conducting component 2. The heat-conducting component 2 is placed in the clearance notch 81 and connected to the fluid heat dissipation part 3 and the back fixing part 4. The shape of the clearance notch 81 matches the outline of the heat-conducting component 2 in the length direction, and its length is sufficient to accommodate the heat-conducting component 2 placed along its long side. During assembly, the heat-conducting component 2 is placed or embedded in the clearance notch 81, so that it obtains a stable and suitable positioning space on the mounting plate 8. At the same time, the heat-conducting component 2 can still maintain an effective connection with the fluid heat dissipation part 3 and the back fixing part 4, realizing the functions of heat conduction, heat dissipation and structural fixation.

[0115] In some embodiments of this application, the fluid heat dissipation part 3 includes a heat dissipation pipe 31. The heat dissipation pipe 31 includes at least two straight pipe sections 311 spaced apart along a first direction. The straight pipe sections 311 extend along a second direction, intersecting the first and second directions. The length of the straight pipe section 311 is greater than or equal to the length of the clearance notch 81. Specifically, as shown in Figures 14 to 16, the heat dissipation pipe 31 includes multiple straight pipe sections 311 and multiple bent pipe sections 312. The multiple straight pipe sections 311 are spaced apart along the first direction. A portion of the straight pipe section 311 is accommodated in the mounting groove 21. The length of each straight pipe section 311 is designed to be greater than or equal to the length of the clearance notch 81, thereby ensuring that the straight pipe section 311 can completely cover or fit the area where the clearance notch 81 is located during assembly, ensuring sufficient contact length between the heat dissipation pipe 31 and the heat-conducting component 2, and achieving efficient heat conduction and heat dissipation. The bent pipe section 312 is connected to the multiple straight pipe sections 311, and the bent pipe section 312 can connect the multiple straight pipe sections 311 in series, in parallel, or in a mixed series-parallel configuration. The bend 312 can be roughly V-shaped, C-shaped, U-shaped, etc.

[0116] In some embodiments of this application, the mounting groove 21 extends through both ends of the heat conductor 2 along its length. A portion of the straight tube 311 is accommodated within the mounting groove 21, with the end of the straight tube 311 flush with or extending beyond the end of the mounting groove 21. In the assembled state, the end of the straight tube 311 can be flush with the end of the mounting groove 21, meaning that after the straight tube 311 is inserted into the groove, its two ends are perfectly aligned with the two ends of the groove, resulting in a neat overall appearance and precise assembly. Alternatively, the end of the straight tube 311 can slightly extend beyond the end of the mounting groove 21, meaning that the straight tube 311 is slightly longer than the mounting groove 21, with its two ends slightly protruding beyond the groove. This provides a certain adjustment margin during assembly or facilitates connection with other components without affecting its main heat conduction function with the heat conductor 2.

[0117] As shown in Figures 14, 15, and 17, in some embodiments of this application, the fluid heat dissipation section 3 further includes a fixing reinforcement 313. The fixing reinforcement 313 is connected to at least two straight pipe sections 311 respectively, and the fixing reinforcement 313 is used to limit the spacing between two adjacent straight pipe sections 311. By setting the fixing reinforcement 313, the spacing dimensions of each straight pipe section 311 can be ensured to be accurate, improving reliability and production efficiency; in addition, it is also beneficial to ensure the uniformity of heat exchange and improve the strength of the refrigerant heat dissipation pipe 31.

[0118] In some embodiments of this application, a second connection structure is provided between the back fixing part 4 and the mounting plate 8. The second connection structure includes a second connecting part 91 and a second mating part 92. The second connecting part 91 is disposed on the back fixing part 4, and the second mating part 92 is disposed on the mounting plate 8. The second connecting part 91 and the second mating part cooperate with each other. By providing the second connection structure, the back fixing part 4 can be securely connected to the mounting plate 8, preventing the heat dissipation components from loosening, shifting, or falling off during equipment operation, and ensuring the structural stability of the entire heat dissipation system and electronic control components.

[0119] In some embodiments of this application, the second connecting part 91 includes one of a snap-fit ​​arm 911 and a snap-fit ​​groove 921, and the second mating part 92 includes the other of a snap-fit ​​arm 911 and a snap-fit ​​groove 921, with the snap-fit ​​arm 911 mating with the snap-fit ​​groove 921. As shown in FIG13, in this embodiment, the back fixing part 4 is provided with a plurality of snap fasteners 6521, which are spaced apart circumferentially along the back fixing part 4. The mounting plate 8 is provided with a clearance notch 81, which extends along the length direction of the heat-conducting component 2, and the heat-conducting component 2 is placed inside the clearance notch 81. The mounting plate 8 is provided with a plurality of snap-fit ​​grooves 921, which are spaced apart circumferentially along the clearance notch 81, and each of the snap-fit ​​grooves 921 corresponds to a snap fastener 6521. During assembly, multiple clips 6521 on the back fixing part 4 engage with multiple slots 921 on the mounting plate 8 to pre-install the back fixing part 4 and the mounting plate 8, and to fix the heat dissipation pipe 31 located between the mounting plate 8 and the back fixing part 4.

[0120] In other embodiments, a slot 921 may be provided on the back fixing part 4, and a buckle 6521 may be provided on the mounting plate 8. The number and arrangement of the slot 921 and the buckle 6521 may also be set according to the requirements, and no specific limitation is made here.

[0121] As shown in Figures 23 to 30, the second aspect of this application proposes an outdoor unit 100 for HVAC equipment, including the aforementioned electrically controlled heat dissipation structure 900. The housing 1 of the electrically controlled heat dissipation structure 900 includes a front panel 12, a right front panel 13, and a right rear panel 14 connected together. The right front panel 13 covers the maintenance port 11 of the electrically controlled heat dissipation structure 900. The maintenance port 11 is an opening specifically reserved for subsequent maintenance, repair, or replacement of the electrical components 5 and heat dissipation components. The right front panel 13 can be assembled using clips 6521, screws, etc. After assembly, the right front panel 13 is located on the front of the maintenance port 11, serving the purpose of daily protection and maintaining a neat appearance. At the same time, when maintenance is required, the right front panel 13 can be disassembled or opened, allowing operators to directly operate the internal electrical components 5 and heat dissipation components through the maintenance port 11. The housing 1 also has an air inlet 10 for introducing outside air to provide the necessary airflow for the heat exchange process inside the equipment, thereby assisting in heat dissipation or maintaining the normal operating temperature of the internal components.

[0122] In some embodiments of this application, the housing 1 further includes a chassis 151, a partition 16 disposed on the chassis 151, and a top plate 152 disposed on the top. The partition 16 divides the inner cavity of the housing 1 into a fan chamber 191 and a machine chamber 192. A mounting bracket 17 is connected to the side of the partition 16 facing the machine chamber 192, and the electrically controlled heat dissipation structure 900 is installed in the machine chamber 192 through the mounting bracket 17. Specifically, as shown in Figures 23 to 25, the partition 16 is arranged along the vertical direction of the inner cavity of the housing 1, dividing the inner cavity of the housing 1 into a fan chamber 191 and a machine chamber 192. A vent 161 is provided on the partition 16 to connect the fan chamber 191 and the machine chamber 192. The fan chamber 191 is used to install the fan, air duct, and related airflow guiding components to realize the airflow circulation required for heat exchange; the machine chamber 192 is used to install the compressor 600, electrical control system, etc. The mounting bracket 17 can be connected to the side of the partition 16 facing the machine room 192 by means of clips 6521, screws, etc., so that the electronic control heat dissipation structure 900 can be firmly and stably installed in the machine room 192, ensuring the stable operation of the electronic control 5 and the heat dissipation components.

[0123] In some embodiments of this application, the electrical control unit 5 includes a first electrical control board 51 and a second electrical control board 52 connected together. The first electrical control board 51 and the second electrical control board 52 are respectively connected to the mounting bracket 17. The first electrical control board 51 is the main control board, and the second electrical control board 52 is the drive board. The second electrical control board 52 is provided with power components 521. The first electrical control board 51 is closer to the maintenance port 11 than the second electrical control board 52. Specifically, the first electrical control board 51 serves as the main control board and is used for the core functions of logic control, signal processing, operation management, and coordination control of the entire electrical control system. The second electrical control board 52 serves as the drive board and is used to receive instructions from the main control board to drive and control the compressor 600, fan, and other actuators. It also integrates power components 521, such as power transistors, MOSFETs, IGBTs, and other high-heat-generating components, which are the part of the electrical control unit 5 that generates a large amount of heat. The first control board 51 is connected to the connecting plate 511, and the second control board 52 is connected to the aforementioned mounting plate 8. The connecting plate 511 and the mounting plate 8 are respectively connected to the mounting bracket 17. The connecting plate 511 and the mounting plate 8 can be detachably connected to the mounting bracket 17 by means of clips 6521, screws, etc., which facilitates disassembly, assembly, and maintenance.

[0124] As shown in Figure 29, in some examples, the housing 1 may optionally include a side plate 18, on which a maintenance window 181 is provided opposite to the central partition 16. The opening size of the maintenance window 181 is relatively small, serving as an auxiliary and supplementary maintenance opening. The maintenance window 181 can be directly used for disassembly or maintenance operations on certain internal components near the side plate 18. On the other hand, the maintenance window 181 can also serve as an auxiliary entrance to the maintenance port 11. When performing the main maintenance operation of the electronically controlled heat dissipation structure 900 through the maintenance port 11, if space is limited, the viewing angle is poor, or the operation is inconvenient, the operator can simultaneously use the maintenance window 181 to perform auxiliary operations from the side, thereby improving the overall flexibility, convenience, and efficiency of maintenance. The extension direction of the electronically controlled heat dissipation structure 900 is parallel to the extension direction of the right front panel 13, making the internal layout more reasonable, optimizing space utilization, and simplifying the assembly and maintenance path.

[0125] As shown in Figure 30, in some examples, the housing 1 may optionally include a side plate 18, on which a maintenance window 181 is provided opposite to the central partition 16. The end of the electrically controlled heat dissipation structure 900 near the maintenance window 181 extends obliquely away from the right front panel 13. Inside the outdoor unit 100 of the HVAC equipment, space is often very limited, and various functional components (such as the electrical control system, heat dissipation components, fan, compressor 600, etc.) need to be arranged closely together. By extending the end of the electrically controlled heat dissipation structure 900 near the maintenance window 181 obliquely away from the right front panel 13, that is, by deflecting this end to the side at a certain angle, the disassembly direction X of the electrically controlled heat dissipation structure 900 is biased towards the maintenance window 181. When the electrically controlled heat dissipation structure 900 needs to be disassembled, the operating space and tool force direction required for disassembly are better matched with the position of the maintenance window 181, making the disassembly process smoother and more direct. At the same time, the oblique arrangement can better adapt to the space constraints in the machine room 192 and meet the layout requirements of the compact space inside the equipment.

[0126] A third aspect of this application discloses a heating, ventilation, and air conditioning (HVAC) system 1000, comprising an indoor unit 200 and an outdoor unit 100, wherein the indoor unit 200 and the outdoor unit 100 are connected by pipes.

[0127] The HVAC equipment 1000 also includes an external gas pipe 300 and an external liquid pipe 400. The indoor unit 200 of the HVAC equipment is used to regulate the temperature of the target space. The external gas pipe 300 connects the gas-side external interface 301 of the outdoor unit 100 of the HVAC equipment and the gas-side external interface 301 of the indoor unit 200 of the HVAC equipment. The external liquid pipe 400 connects the liquid-side external interface 401 of the outdoor unit 100 of the HVAC equipment and the liquid-side external interface 401 of the indoor unit 200 of the HVAC equipment. The outdoor unit 100, the indoor unit 200, the external gas pipe 300 and the external liquid pipe 400 form a refrigerant circulation loop.

[0128] Referring to Figure 31, the indoor unit 200 of the HVAC system includes a load heat exchanger 201, which absorbs heat from the target space by vaporizing low-pressure, low-temperature refrigerant liquid to lower the temperature of the target space. The outdoor unit 100 of the HVAC system includes a heat source heat exchanger 101, which exchanges heat with the environment through the flow of refrigerant to release or absorb heat. An external gas pipe 300 and an external liquid pipe 400 connect the heat source heat exchanger 101 and the load heat exchanger 201, ensuring that the refrigerant flows between the heat source heat exchanger 101 and the load heat exchanger 201. A portion of the external liquid pipe 400 near the heat source heat exchanger 101 is cooled by a heat dissipation component. An external gas-side shut-off valve 103 is installed on the external gas pipe 300, and a liquid-side shut-off valve 102 is installed on the external liquid pipe 400. The refrigerant circulation system also includes a four-way valve 500 and a throttling device. The four-way valve 500 includes a main valve body and four ports: a first port 501, a second port 502, a third port 503, and a fourth port 504. The first port 501 is connected to the discharge port of the compressor 600, the second port 502 is connected to the return port of the compressor 600, the third port 503 is connected to the heat source heat exchanger 101, and the fourth port 504 is connected to the load heat exchanger 201. The throttling device can be an expansion valve or a capillary tube. When the high-pressure, low-temperature refrigerant liquid is throttled through the expansion valve or capillary tube, the pressure drops sharply and the temperature decreases significantly, turning it into a low-pressure, low-temperature liquid.

[0129] In some embodiments of this application, the refrigerant circulation system further includes a gas-liquid separator 800 and an oil separator 700. The compressor 600 is connected to an exhaust pipe 601 and a return pipe 602. The gas-liquid separator 800 is connected to the return pipe 602 and is used to separate the refrigerant gas returning from the indoor unit 200 of the HVAC equipment into gas and liquid components, ensuring that only gaseous refrigerant enters the outdoor unit 100 of the HVAC equipment and preventing liquid refrigerant from causing liquid slugging damage to the heat exchanger 101. The oil separator 700 is connected to the exhaust pipe 601 and is used to separate the lubricating oil in the high-temperature and high-pressure gaseous refrigerant discharged by the compressor 600 and return it to the compressor 600 to ensure the lubrication of the compressor 600 and the stable operation of the system.

[0130] In cooling mode, the load heat exchanger 201 acts as an evaporator, where low-pressure, low-temperature liquid refrigerant absorbs heat from the target space and vaporizes into low-pressure gaseous refrigerant, thereby lowering the indoor temperature. The gaseous refrigerant returns to the outdoor unit 100 of the HVAC system through the external gas pipe 300, where it first undergoes gas-liquid separation in the gas-liquid separator 800. Subsequently, the gaseous refrigerant enters the heat source heat exchanger 101, where it releases heat to the external environment and condenses into high-pressure liquid refrigerant. The high-pressure liquid refrigerant then flows back to the indoor unit 200 of the HVAC system through the external liquid pipe 400, re-enters the load heat exchanger 201 for heat absorption and evaporation, and so on in a continuous cycle.

[0131] In heating mode, the load heat exchanger 201 acts as a condenser, where high-pressure liquid refrigerant releases heat to the target space and condenses into high-pressure medium-temperature refrigerant or liquid refrigerant, thereby increasing the indoor temperature. Subsequently, the refrigerant flows back to the outdoor unit 100 of the HVAC system through the external liquid pipe 400. In the outdoor unit 100, the refrigerant enters the heat source heat exchanger 101 through the external gas pipe 300. The heat source heat exchanger 101 then acts as an evaporator, absorbing heat from the external environment and evaporating the refrigerant into low-pressure gaseous refrigerant. Before returning to the indoor unit 200 of the HVAC system through the external gas pipe 300, the low-pressure gaseous refrigerant undergoes gas-liquid separation through the gas-liquid separator 800 to ensure that only gaseous refrigerant enters the load heat exchanger 201. Afterward, the gaseous refrigerant re-enters the load heat exchanger 201 for heat release and condensation, and the cycle repeats continuously.

[0132] Although this application has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of this application. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An electrically controlled heat dissipating structure, wherein, include: The housing has a maintenance opening on one side wall; A heat dissipation assembly is installed inside the housing and is positioned facing the maintenance port; An electrical control unit is installed inside the housing and located between the maintenance port and the heat dissipation assembly. The electrical control unit and the heat dissipation assembly are connected via a first connection structure. The first connection structure includes a first connector, which is detachably connected to the electrical control unit and the heat dissipation assembly. The detachment direction of the first connector is towards the maintenance port.

2. The electrically controlled heat dissipating structure according to claim 1, wherein, The first connection structure further includes a first connecting part and a first mating part. The first connecting part is disposed on the electrical control component, and the first mating part is disposed on the heat dissipation component. The first connecting part and the first mating part are connected to each other through the first connecting member. The first connector includes a first bolt, the first connecting part includes a first bolt hole disposed on the electrical control, the first mating part includes a second bolt hole disposed on the heat dissipation assembly and corresponding to the first bolt hole, and the first bolt passes through the first bolt hole and connects with the second bolt hole.

3. The electrically controlled heat dissipating structure according to claim 2, wherein, The heat dissipation component is made of plastic, and a copper nut is provided in the second bolt hole, with internal threads on the inner wall of the copper nut.

4. The electrically controlled heat dissipating structure according to claim 2, wherein, There are multiple first bolts and multiple first bolt holes, with the multiple first bolt holes spaced apart along the length of the electrical control component, and the multiple second bolt holes spaced apart along the length of the heat dissipation component.

5. The electrically controlled heat dissipation structure according to claim 2, wherein, The heat dissipation assembly includes a fluid heat dissipation section and a back fixing section. The fluid heat dissipation section is for cooling fluid to pass through, and the back fixing section is further away from the electrical control section than the fluid heat dissipation section. The second bolt hole is provided on the back fixing section. A power element is provided on the back of the electrical control unit. The power element is closer to the maintenance port than the fluid heat dissipation part. A heat-conducting component is provided between the power element and the fluid heat dissipation part. The two sides of the heat-conducting component contact the fluid heat dissipation part and the power element respectively. The heat-conducting component is provided with through holes corresponding to the first bolt hole and the second bolt hole. The first connector passes sequentially through the first stud hole and the through hole along the insertion direction, and is threadedly connected to the second stud hole.

6. The electrically controlled heat dissipation structure according to claim 5, wherein, The fluid heat dissipation section is constructed as a pipe structure, and the cooling fluid is a refrigerant flow. The back of the heat-conducting component is provided with a mounting groove, and a portion of the fluid heat dissipation part is at least accommodated in the mounting groove and in contact with the groove surface of the mounting groove. The front side of the heat-conducting component is in contact with the plane of the power element.

7. The electrically controlled heat dissipation structure according to claim 6, wherein, The surface of the back fixing part is provided with a clamping groove corresponding to the mounting groove. The fluid heat dissipation part is installed in the mounting groove and the clamping groove. The clamping groove is used to clamp the fluid heat dissipation part so that the fluid heat dissipation part is in contact with the heat-conducting component.

8. The electrically controlled heat dissipation structure according to claim 6, wherein, The fluid heat dissipation unit includes a heat dissipation block made of thermally conductive material and a pipe structure fixed on the heat dissipation block. The cooling fluid is a refrigerant flow, and the side of the heat dissipation block facing the maintenance port is a plate structure. The front side of the heat-conducting component is in contact with the plane of the power element, and the back side of the heat-conducting component is in contact with the plane of the fluid heat dissipation part.

9. The electrically controlled heat dissipation structure according to claim 5, wherein, The fluid heat dissipation section is configured as a finned structure, the cooling fluid is airflow, and the side of the fluid heat dissipation section facing the maintenance port is configured as a plate. The front side of the heat-conducting component is in contact with the plane of the power element, and the back side of the heat-conducting component is in contact with the plane of the fluid heat dissipation part.

10. The electrically controlled heat dissipation structure according to claim 5, wherein, The first connecting portion further includes a guide component, which includes a head and a plurality of elastic walls extending from the head. The plurality of elastic walls are arranged circumferentially to form the first bolt hole. The head is exposed on the front of the electrical control component, and the plurality of elastic walls pass through the electrical control component and are exposed on the back of the electrical control component.

11. The electrically controlled heat dissipation structure according to claim 10, wherein, A limiting structure is provided between the heat-conducting component and the back side of the electrical control component. The limiting structure is provided with a through hole, which corresponds to the through hole. A latching part is provided on the hole wall of the limiting structure near the back side of the electrical control component. The latching part is located on the inner wall of the through hole. Multiple elastic walls extend into the through hole and are latched to the latching part. A limiting post is provided on the side of the limiting structure near the heat-conducting component. The through hole passes through the limiting post. A limiting groove is provided on the side of the heat-conducting component near the limiting structure. The limiting post and the limiting groove are guided and engaged. The first bolt passes through the first bolt hole, the through hole, and the through hole along the insertion direction and is threadedly connected to the second bolt hole.

12. The electrically controlled heat dissipation structure according to claim 5, wherein, The back side of the electrical control component is also provided with at least two positioning blocks. The plurality of power components are arranged along the height direction. The at least two positioning blocks are respectively set on both sides of the height direction. The back side of the positioning block is provided with a positioning groove. The two ends of the heat-conducting component are respectively positioned in the two positioning grooves. A fixing member passes through the electrical control component from the front and through the positioning block and is threaded to one end of the heat-conducting component.

13. The electrically controlled heat dissipation structure according to claim 5, wherein, The heat-conducting component and the back fixing part have a first positioning structure. The first positioning structure includes a first positioning part disposed on the heat-conducting component and a first positioning mating part disposed on the back fixing part. The first positioning mating part is positioned and connected to the first positioning part and is guided and mated during the connection process.

14. The electrically controlled heat dissipation structure according to claim 13, wherein, The first positioning part includes one of a first positioning post and a first positioning hole, and the first positioning mating part includes the other of a first positioning post and a first positioning hole. The first positioning post and the first positioning hole are positioned and connected and guided to fit during the connection process.

15. The electrically controlled heat dissipation structure according to claim 14, wherein, There are multiple first positioning posts and multiple first positioning holes. The multiple first positioning posts are spaced apart along the length direction of the back fixing part, and the multiple first positioning holes are spaced apart along the length direction of the heat-conducting component.

16. The electrically controlled heat dissipation structure according to claim 6, wherein, The electronically controlled heat dissipation structure also includes a mounting plate, and a second positioning structure is provided between the electronic control component and the mounting plate. The second positioning structure includes a second positioning part disposed on the electronic control component and a second positioning mating part disposed on the mounting plate.

17. The electrically controlled heat dissipation structure according to claim 16, wherein, The mounting plate is provided with a clearance notch, which extends along the length of the heat-conducting component. The heat-conducting component is placed inside the clearance notch and is connected to the fluid heat dissipation part and the back fixing part.

18. The electrically controlled heat dissipation structure according to claim 17, wherein, The fluid heat dissipation section includes a heat dissipation pipe, which includes at least two straight pipe sections spaced apart along a first direction. The straight pipe sections extend along a second direction, where the first direction intersects the second direction. The length of the straight pipe section is greater than or equal to the length of the clearance gap.

19. The electrically controlled heat dissipation structure according to claim 18, wherein, The mounting groove extends through both ends of the heat-conducting element along its length. A portion of the straight tube is accommodated within the mounting groove, and the end of the straight tube is flush with the end of the mounting groove or extends beyond the end of the mounting groove.

20. The electrically controlled heat dissipation structure according to claim 18, wherein, The fluid heat dissipation section further includes a fixing reinforcement member, which is connected to at least two of the straight pipe sections respectively, and the fixing reinforcement member is used to define the distance between two adjacent straight pipe sections.

21. The electrically controlled heat dissipation structure of claim 16, wherein, A second connection structure is provided between the back fixing part and the mounting plate. The second connection structure includes a second connecting part and a second mating part. The second connecting part is disposed on the back fixing part, and the second mating part is disposed on the mounting plate. The second connecting part and the second connecting mating part mate with each other.

22. The electrically controlled heat dissipation structure according to claim 21, wherein, The second connecting part includes one of a snap-fit ​​arm and a snap-fit ​​slot, and the second mating part includes the other of a snap-fit ​​arm and a snap-fit ​​slot, wherein the snap-fit ​​arm mates with the snap-fit ​​slot.

23. The electrically controlled heat dissipation structure of claim 22, wherein, The number of the snap-fit ​​arms and the number of the snap-fit ​​slots are both multiple. The multiple snap-fit ​​arms are respectively disposed on both sides of the back fixing part and are spaced apart along the length direction of the back fixing part. The multiple snap-fit ​​slots are respectively disposed on the mounting plate and are spaced apart along the length direction of the mounting plate.

24. A heating and ventilating apparatus outdoor unit, wherein, The device includes an electronically controlled heat dissipation structure as described in any one of claims 1 to 23, wherein the housing of the electronically controlled heat dissipation structure includes a front panel, a right front panel, and a right rear panel connected together, and the right front panel covers the maintenance port of the electronically controlled heat dissipation structure.

25. The heating and ventilation outdoor unit of claim 24, wherein, The housing also includes a chassis and a partition plate disposed on the chassis. The partition plate divides the inner cavity of the housing into a fan chamber and a machine chamber. A mounting bracket is connected to the side of the partition plate facing the machine chamber, and the electrically controlled heat dissipation structure is installed in the machine chamber through the mounting bracket.

26. The heating and ventilation outdoor unit of claim 25, wherein, The electrical control unit includes a first electrical control board and a second electrical control board connected together, and the first electrical control board and the second electrical control board are respectively connected to the mounting bracket. The first electrical control board is the main control board, and the second electrical control board is the drive board. The second electrical control board is provided with power components. The first electrical control board is closer to the maintenance port than the second electrical control board.

27. The heating and ventilation outdoor unit of claim 25, wherein, The housing also includes a side panel, on which a maintenance window is provided opposite to the central partition. The extension direction of the electronically controlled heat dissipation structure is parallel to the extension direction of the right front panel.

28. The heating and ventilation outdoor unit of claim 25, wherein, The housing also includes a side panel, on which a maintenance window is provided opposite to the central partition. The end of the electronically controlled heat dissipation structure near the maintenance window extends at an angle away from the right front panel.

29. A heating and ventilating apparatus wherein, The air conditioning device indoor unit and the air conditioning device outdoor unit are connected through a pipe.

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