Top air outlet type air conditioner outdoor unit

Abstract

The utility model discloses a top-air-out type air conditioner outdoor unit which comprises a machine shell, an outdoor air outlet and an outdoor air inlet are formed in the top and the side portion of the machine shell respectively. The electric control box is connected with the machine shell, a containing cavity is formed in the electric control box, and the electric control box comprises a supporting plate connected to the machine shell; the box body is arranged in the accommodating cavity and is provided with an opening; the electric control board is installed on the box body and provided with a first through hole, the heating module is installed on the electric control board through a supporting frame and penetrates through the open hole, and the heating module or the box body or the supporting frame is provided with a second through hole; the refrigerant heat dissipation component is connected to the supporting plate and abuts against the heating module, and a first mounting hole is formed in the refrigerant heat dissipation component; the first positioning part is arranged on the supporting plate; and the second positioning part is arranged on the box body. According to the invention, the first positioning part is adaptively connected with the second positioning part, so that the first via hole and the second via hole are aligned with the first mounting hole, manual alignment is not needed when the first fastener is used for connection and fixation, and the assembly efficiency is improved.

Description

A top-discharge air conditioner outdoor unit Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to a top-discharge type outdoor air conditioning unit. Background Technology

[0002] Top-discharge air conditioning outdoor units are a common type of air conditioning outdoor unit. In a top-discharge air conditioning outdoor unit, the outdoor air outlet is located at the top of the casing, the outdoor air inlet is located on the side of the casing, the outdoor heat exchanger is installed along the height of the outdoor unit and extends along the inner circumferential wall of the casing, and the outdoor fan is located inside the casing and is positioned corresponding to the outdoor air outlet along the height of the casing. Top-discharge air conditioning outdoor units also include an electrical control box, which provides a reliable operating environment for the electrical control board. During operation, the components on the electrical control board generate a large amount of heat, causing its temperature to rise rapidly. If this heat is not dissipated in time, it can lead to a decrease in the performance of the components or even burnout, reducing the operating efficiency and reliability of the entire air conditioning system. Therefore, to ensure the stable operation of the air conditioning outdoor unit, effective heat dissipation of the electrical control box is essential.

[0003] In related technologies, air cooling or refrigerant cooling methods are used to dissipate heat from the control board. The heat sink is typically installed on the side of the control board facing the outdoor fan, in close contact with the heat-generating modules on the board. When using air cooling, the heat sink fins penetrate the control box and extend into the mounting cavity, effectively transferring the heat generated by the control board to the surrounding air, utilizing the airflow from the outdoor fan for heat dissipation. However, the heat sink fins are exposed inside the mounting cavity and are susceptible to clogging from dust, catkins, willow catkins, leaves, and other foreign objects in the external environment. Clogging reduces heat dissipation efficiency, increases the temperature of components on the control board, and affects cooling performance and the lifespan of the control board.

[0004] Using refrigerant cooling can effectively solve the aforementioned technical problems. However, the refrigerant cooling component is installed inside the electrical control box and on a sheet metal part. During assembly, the electrical control component and the refrigerant cooling component need to be fixed with screws and other fasteners, but the lack of a positioning structure between them makes it difficult to align the screw holes with the mounting holes, resulting in low assembly efficiency. In addition, the refrigerant cooling component has cooling pipes for circulating refrigerant, which need to be welded to the refrigerant pipeline. During the welding of the cooling pipes, sufficient welding space cannot be guaranteed, which can easily burn other materials. At the same time, when the air conditioner is heating, the air temperature inside the sheet metal electrical control box is much higher than the outside temperature, which greatly increases the risk of condensation inside the sheet metal electrical control box, posing a short circuit risk to the operation of the electrical control board and affecting the operational reliability of the top-discharge air conditioner outdoor unit.

[0005] In view of the above, this application is hereby submitted. Summary of the Invention

[0006] This utility model aims to at least partially solve one of the technical problems in related technologies. Therefore,

[0007] According to embodiments of this disclosure, a top-discharge air conditioning outdoor unit is provided, comprising:

[0008] The housing has an internal mounting cavity, and the top and side of the housing are respectively provided with an outdoor air outlet and an outdoor air inlet communicating with the mounting cavity.

[0009] An outdoor fan is installed inside the mounting cavity and located near the outdoor air outlet.

[0010] An outdoor heat exchanger is located inside the mounting cavity, and the outdoor heat exchanger is positioned close to the outdoor air inlet.

[0011] The compressor is located within the mounting cavity and below the outdoor fan.

[0012] An electrical control box, connected to the housing and located outside the mounting cavity, the electrical control box defining a receiving cavity, the electrical control box comprising:

[0013] A support plate, connected to the housing, is used to separate the receiving cavity from the mounting cavity;

[0014] A box body is disposed within the receiving cavity, and the box body is provided with a through opening;

[0015] An electronic control board is mounted on the housing, and the electronic control board has a first through hole for the first fastener to pass through.

[0016] The heating module is mounted on the side of the electronic control board facing the support plate via a support frame. The heating module passes through the opening. A second through hole is provided on the heating module, the box, or the support frame.

[0017] A refrigerant heat dissipation component is connected to the support plate. The refrigerant heat dissipation component abuts against the heating module and uses the cooling capacity of the refrigerant to dissipate heat from the heating module. The refrigerant heat dissipation component is provided with a first mounting hole.

[0018] The first positioning part is provided on the side of the support plate opposite to the mounting cavity;

[0019] A second positioning part is provided on the box body. The first positioning part and the second positioning part are adapted and connected to each other so that the first through hole, the second through hole and the first mounting hole are aligned.

[0020] The first fastener passes sequentially through the first through hole and the second through hole, and then connects and fixes itself to the first mounting hole, so that the box body is mounted on the support plate and the heating module abuts against the refrigerant heat dissipation component. The above technical solution has the following advantages or beneficial effects: The refrigerant heat dissipation component is used to dissipate heat from the heating module of the electronic control board, improving the heat dissipation efficiency of the heating module inside the electronic control box. The box body achieves positioning through the cooperation of the first positioning part and the second positioning part, so that the first through hole, the second through hole, and the first mounting hole are automatically aligned during box body installation, improving the assembly efficiency of the electronic control box; at the same time, the first fastener adopts a front-mounted disassembly method, so that when the electronic control board needs to be repaired or replaced, it is not necessary to disassemble other components, greatly improving the convenience and efficiency of maintenance.

[0021] According to embodiments of this disclosure, the top-mounted air conditioner outdoor unit further includes:

[0022] The third positioning part is provided on the side of the support plate opposite to the mounting cavity;

[0023] The fourth positioning part is disposed on the refrigerant heat dissipation component, and the third positioning part is adapted to the fourth positioning part to position the refrigerant heat dissipation component on the support plate.

[0024] The above technical solution has the following advantages or beneficial effects: the cooperation between the third positioning part and the fourth positioning part improves the positioning accuracy and installation stability of the refrigerant heat dissipation component on the support plate.

[0025] According to embodiments of this disclosure, the refrigerant heat dissipation component includes:

[0026] A refrigerant radiator abuts against the heating module, and the refrigerant radiator is provided with the first mounting hole;

[0027] An isolator is connected between the refrigerant radiator and the support plate to block heat conduction between the refrigerant radiator and the support plate, and the fourth positioning part is provided on the isolator.

[0028] The above technical solution has the following advantages or beneficial effects: by setting up an isolation component to block heat conduction between the support plate and the refrigerant radiator, the risk of condensation on the support plate is reduced; at the same time, it can prevent the condensation on the support plate from flowing to the refrigerant radiator, effectively preventing the condensation from contacting the control board through the heating module, and ensuring the stable operation of the control board.

[0029] According to an embodiment of this disclosure, the isolation member and the support plate are respectively provided with a third through hole and a second mounting hole, the third positioning part and the fourth positioning part are adapted to be connected so that the third through hole and the second mounting hole are aligned, and the second fastener passes through the third through hole and is connected to the second mounting hole so that the isolation member is detachably connected to the support plate.

[0030] The above technical solution has the following advantages or beneficial effects: The fastener connection enhances the stability of the connection between the isolator and the support plate, and also facilitates the installation and disassembly of the isolator. Furthermore, the cooperation between the third and fourth positioning parts enables the first-time alignment of the third through hole with the second mounting hole, improving the assembly efficiency of the isolator.

[0031] According to an embodiment of this disclosure, the isolation member has a mounting position on the side opposite to the support plate, the mounting position has a first snap-fit ​​part, and the refrigerant radiator has a second snap-fit ​​part. The first snap-fit ​​part and the second snap-fit ​​part are adapted to be connected so that the refrigerant radiator is positioned and snapped onto the mounting position.

[0032] The above technical solution has the following advantages or beneficial effects: the refrigerant heat sink is snapped onto the isolation component, and the cooperation between the first snap-fit ​​part and the second snap-fit ​​part facilitates the installation of the refrigerant heat sink component and helps to improve assembly efficiency.

[0033] According to an embodiment of this disclosure, the support plate includes:

[0034] The first support plate is connected to the housing and is used to install the box body and the refrigerant heat dissipation component. The first support plate is provided with the first positioning part.

[0035] A receiving portion is formed on the first support plate and extends to the bottom end of the first support plate. The receiving portion is recessed relative to the first support plate in the direction of the mounting cavity for accommodating the refrigerant heat dissipation component. The refrigerant heat dissipation component has a cooling pipe for supplying refrigerant flow. The inlet and outlet ends of the cooling pipe extend to the bottom of the first support plate and are welded to the refrigerant pipeline.

[0036] The second support plate is located below the first support plate and the box body. The second support plate is connected to the housing to cover the welding points of the cooling pipe.

[0037] The above technical solution has the following advantages or beneficial effects: the above arrangement makes the first support plate the electrical control area and the second support plate the welding area of ​​the cooling pipe. During the assembly of the electrical control box, the first support plate can be installed first, and after the welding of the cooling pipe is completed, the second support plate can be installed to cover the welding point, ensuring sufficient welding space for the cooling pipe and avoiding burning other materials on the electrical control box.

[0038] According to embodiments of this disclosure, the electrical control box further includes:

[0039] A base plate, which is connected to the second support plate to form the bottom wall of the receiving cavity;

[0040] The cover is connected to the base plate, the first support plate, and the second support plate, forming the receiving cavity with an open top.

[0041] The above technical solution has the following advantages or beneficial effects: the cover, support plate, and bottom plate form a cavity to provide a reliable installation and working environment for the electronic control board.

[0042] According to an embodiment of this disclosure, the base plate is provided with a ventilation inlet communicating with the receiving cavity, and the support plate is provided with a ventilation outlet communicating with the mounting cavity and the receiving cavity, the ventilation outlet being located above the electronic control board.

[0043] The above technical solution has the following advantages or beneficial effects: external air can enter the housing cavity through the ventilation inlet, carry away heat through the electronic control board, and enter the installation cavity through the ventilation outlet, and finally flow out through the outdoor outlet. This allows the electronic control board to use a combination of refrigerant cooling and air cooling for heat dissipation, which improves the overall heat dissipation efficiency and effect, and ensures that the temperature of each part of the electronic control board is within a reasonable range.

[0044] According to an embodiment of this disclosure, a heat-conducting plate is sandwiched between the refrigerant heat dissipation component and the heat-generating module.

[0045] The above technical solution has the following advantages or beneficial effects: by sandwiching a heat-conducting plate between the refrigerant heat dissipation component and the heating module, the efficiency of heat transfer can be improved, so that the heat generated by the heating module can be transferred to the refrigerant heat dissipation component more effectively, and then the heat can be dissipated through the cold energy of the refrigerant, thereby improving the heat dissipation effect.

[0046] According to embodiments of this disclosure, a top-discharge air conditioning outdoor unit is also provided, comprising:

[0047] A housing having an internal mounting cavity, the housing including an outdoor air outlet and an outdoor air inlet communicating with the mounting cavity, the outdoor air outlet being located at the top of the housing and the outdoor air inlet being located on the side wall of the housing.

[0048] An outdoor fan is disposed in the mounting cavity and near the outdoor air outlet, and the axis of the outdoor fan extends along the height direction of the housing.

[0049] An outdoor heat exchanger is located inside the mounting cavity, and the outdoor heat exchanger is positioned close to the outdoor air inlet.

[0050] A compressor is disposed within the mounting cavity, and the compressor is located below the outdoor fan;

[0051] An electronic control board, wherein a heating module is provided on the side of the electronic control board, and a first through hole is provided on the electronic control board;

[0052] A refrigerant heat dissipation component is in contact with the heating module. The refrigerant heat dissipation component has a cooling pipe for circulating refrigerant and uses the cooling capacity of the refrigerant to dissipate heat from the heating module.

[0053] An electrical control box, connected to the housing and located outside the mounting cavity, the electrical control box defining a receiving cavity, the electrical control box comprising:

[0054] A housing, located within the receiving cavity, is used to mount the electronic control board. The housing has an opening for the heating module to pass through.

[0055] The first support plate is connected to the housing and is used to install the refrigerant heat dissipation component. The box body positions itself on the first support plate through a positioning structure and is fixedly connected to the refrigerant heat dissipation component through the first fastener. The inlet and outlet ends of the cooling pipe extend to the bottom of the first support plate and are welded to the refrigerant pipeline.

[0056] The second support plate is connected to the housing and located below the first support plate to cover the inlet and outlet ends. The second support plate and the first support plate are spliced ​​together to form a support plate, which is used to separate the receiving cavity from the mounting cavity.

[0057] The above technical solution has the following advantages or beneficial effects: the first and second support plates are spliced ​​together to form a support plate, and the box with the electrical control board is connected to the first support plate. The area on the first support plate is the electrical control area, and the area on the second support plate is the welding area of ​​the cooling pipe. During the assembly of the electrical control box, the first support plate can be installed first, and after the welding of the cooling pipe is completed, the second support plate can be installed to cover the welding point, ensuring sufficient welding space for the cooling pipe, avoiding burning other materials on the electrical control box, and improving the installation reliability of the electrical control box. Attached Figure Description

[0058] Figure 1 is a structural schematic diagram of the outdoor unit of the top-discharge air conditioner of this application;

[0059] Figure 2 is a structural schematic diagram of the outdoor unit of the top-discharge air conditioner of this application without the air outlet cover;

[0060] Figure 3 is a structural schematic diagram of the outdoor unit of the top-discharge air conditioner of this application without the top cover and air outlet cover;

[0061] Figure 4 is a schematic diagram of the internal structure of the outdoor unit of the top-discharge air conditioner of this application.

[0062] Figure 5 is a structural schematic diagram of the outdoor unit of the top-discharge air conditioner of this application from another perspective;

[0063] Figure 6 is a schematic diagram of the internal structure of the outdoor unit of the top-discharge air conditioner of this application;

[0064] Figure 7 is a schematic diagram of the structure of the outdoor unit of the top-discharge air conditioner of this application, which has an air guide component.

[0065] Figure 8 is a schematic diagram of the internal structure of the outdoor unit of the top-discharge air conditioner of this application, which has a baffle.

[0066] Figure 9 is a cross-sectional view of the outdoor unit of the top-discharge air conditioner of this application;

[0067] Figure 10 is a magnified view of point C in Figure 9;

[0068] Figure 11 is a diagram showing the airflow path in the electrical control box of the outdoor unit of the top-discharge air conditioner of this application;

[0069] Figure 12 is a structural schematic diagram of the baffle in the outdoor unit of the top-discharge air conditioner of this application;

[0070] Figure 13 is a partial schematic diagram of the outdoor unit of the top-discharge air conditioner of this application;

[0071] Figure 14 is a schematic diagram of the electrical control components in the outdoor unit of the top-discharge air conditioner of this application.

[0072] Figure 15 is an exploded schematic diagram of the electrical control components in the outdoor unit of the top-discharge air conditioner of this application;

[0073] Figure 16 is a schematic diagram of the outdoor unit of the top-discharge air conditioner of this application, omitting the cover;

[0074] Figure 17 is a schematic diagram of the connection between the box and the electronic control board in the outdoor unit of the top-discharge air conditioner of this application.

[0075] Figure 18 is a schematic diagram of the connection between the box and the electronic control board in the outdoor unit of the top-discharge air conditioner of this application from another perspective.

[0076] Figure 19 is an exploded view of the casing and electrical control board in the outdoor unit of the top-discharge air conditioner of this application;

[0077] Figure 20 is a structural schematic diagram of the casing in the outdoor unit of the top-discharge air conditioner of this application;

[0078] Figure 21 is a cross-sectional view of the outdoor unit of a top-discharge air conditioner according to another embodiment of this application;

[0079] Figure 22 is a magnified view of part D in Figure 21;

[0080] Figure 23 is a schematic diagram of the electrical control components of the outdoor unit of the top-discharge air conditioner in another embodiment of this application;

[0081] Figure 24 is a schematic diagram of the partial explosion in Figure 23;

[0082] Figure 25 is a schematic diagram of the assembly of the refrigerant radiator with the housing and isolation components in another embodiment of this application;

[0083] Figure 26 is a schematic diagram of a partial explosion in Figure 25;

[0084] Figure 27 is a partial explosion diagram of the refrigerant radiator, housing, and isolation component in another embodiment of this application;

[0085] Figure 28 is an exploded schematic diagram of a refrigerant radiator in another embodiment of this application;

[0086] Figure 29 is an assembly diagram of the refrigerant radiator, the isolation component and the support plate in another embodiment of this application;

[0087] Figure 30 is a partial cross-sectional view of the connection between the spacer and the support plate in another embodiment of this application;

[0088] Figure 31 is a schematic diagram of the assembly of the electronic control board and the housing in another embodiment of this application;

[0089] Figure 32 is a schematic diagram of the assembly of the electronic control board and the housing from another perspective in another embodiment of this application;

[0090] Figure 33 is a structural schematic diagram of a refrigerant heat dissipation component in another embodiment of this application;

[0091] Figure 34 is a structural schematic diagram of the support plate in another embodiment of this application;

[0092] Figure 35 is a structural schematic diagram of the refrigerant heat dissipation component in another embodiment of this application from another perspective.

[0093] Figure 36 is an exploded schematic diagram of a refrigerant heat dissipation component in another embodiment of this application;

[0094] Figure 37 is a schematic diagram of the electronic control component from another perspective in another embodiment of this application;

[0095] Figure 38 is a schematic diagram of a partial explosion in Figure 37;

[0096] Figure 39 is a partial explosion diagram of the electronic control component from another perspective in another embodiment of this application;

[0097] Figure 40 is a schematic diagram of the installation process of the electronic control component in another embodiment of this application;

[0098] Figure 41 is a cross-sectional view of the connection between the electronic control board, the housing, the heat conduction plate and the refrigerant heat dissipation component in another embodiment of this application.

[0099] Figure 42 is a partial exploded view of the electronic control component in another embodiment of this application.

[0100] In the above figures:

[0101] Top-discharge air conditioner outdoor unit 100; casing 1; outdoor air inlet 11; outdoor air outlet 12; top cover 13; chassis 14; side panel 15; air outlet cover 16; mounting cavity 17; outdoor heat exchanger 2; outdoor fan 3; compressor 4; electrical control box 5; base plate 51; ventilation air inlet 512; electrical control board 52; heating module 521; first through hole 522; support plate 53; through part 531; ventilation air outlet 532; accommodating part 533; first positioning part 534; third positioning part 535; first support plate 536; second support plate 537; second mounting hole 538; box body 54; opening 541; support frame 542; second positioning part 543; cover 55; air-cooled radiator 56; heat dissipation fins 561; heat dissipation Air inlet 57; receiving cavity 58; terminal block 591; mounting plate 592; baffle 10; ventilation louver 101; first plate 102; second plate 103; third plate 104; air outlet duct 105; air guide 20; heat dissipation air outlet 201; heat dissipation duct 202; refrigerant radiator 30; heat dissipation base plate 301; groove 3011; cooling pipe 302; inlet / outlet end 3021; ​​first mounting hole 303; second snap-fit ​​part 304; isolation part 40; flow guide part 401; third through hole 402; mounting position 403; first snap-fit ​​part 404; fourth positioning part 405; flow guide channel 406; heat conduction plate 50; fourth through hole 501; second through hole 60; first fastener 70; second fastener 80. Detailed Implementation

[0102] To make the objectives and implementation methods of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the exemplary embodiments described are only some embodiments of this application, and not all embodiments.

[0103] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0104] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar or related objects or entities, and do not necessarily imply a specific order or sequence, unless otherwise specified. It should be understood that such terms are interchangeable where appropriate.

[0105] The terms “include” and “have”, and any variations thereof, are intended to cover but not exclusively include, for example, a product or device that includes a range of components is not necessarily limited to all of the components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.

[0106] The top-discharge air conditioner outdoor unit provided in this application can have various implementation forms. Figures 1 to 42 show one specific embodiment of the top-discharge air conditioner outdoor unit of this application. In this embodiment, the top-discharge air conditioner outdoor unit serves as the outdoor unit of the air conditioner, used to carry indoor heat to the outside.

[0107] As shown in Figure 1, the top-discharge air conditioner outdoor unit provided in this application may include a housing 1. The housing 1 is installed outdoors, and the housing 1 forms the overall appearance of the air conditioner outdoor unit 100.

[0108] As shown in Figure 2, the housing 1 defines an installation cavity 17, which is used to install and fix the various components of the outdoor unit 100 of the air conditioner. Referring to Figure 1, the housing 1 has a top and a bottom, which are opposite ends of the housing 1 in the height direction.

[0109] The housing 1 may include an outdoor air outlet 12, which is located at the top of the housing 1. The outdoor air outlet 12 communicates with the mounting cavity 17 and serves as an outlet for the heat-exchanged air to flow out from inside the housing 1.

[0110] The housing 1 may include an outdoor air inlet 11, which is located on the side wall of the outer periphery of the housing 1. The outdoor air inlet 11 communicates with the mounting cavity 17 and serves as the inlet for external air to flow into the housing 1.

[0111] Referring to Figures 1 and 2, in some embodiments, the air outlet direction of the outdoor air inlet 11 intersects with the air inlet direction of the outdoor air outlet 12.

[0112] As shown in Figure 1, the housing 1 may include a top cover 13, which is located at the top of the housing 1, and an outdoor air outlet 12 is formed on the top cover 13. In some embodiments, the outdoor air outlet 12 is circular and located in the middle of the top cover 13.

[0113] The housing 1 may include a side panel 15, which surrounds the edge of the top cover 13. As shown in Figure 2, the side panel 15 is located below the top cover 13, and the outdoor air inlet 11 is opened on the side panel 15.

[0114] The top cover 13 can be detachably connected to the side plate 15 by means of bolts or screws.

[0115] As shown in Figure 2, the housing 1 may include a chassis 14, which is disposed opposite to the top cover 13 along the height direction of the housing. The chassis 14 is connected to the lower part of the side plate 15, and the chassis 14, the side plate 15 and the top cover 13 together define and enclose to form a mounting cavity 17.

[0116] In some embodiments, the top cover 13 is connected to an air guide ring, which is located at the outdoor air outlet 12. The interior of the air guide ring defines a cavity extending along the height direction of the housing 1, and the impeller of the outdoor fan 3 is located within the cavity. The air guide ring is used to guide the airflow within the mounting cavity 17, so that the outdoor fan 3 can better perform its air guiding function.

[0117] In some embodiments, the air guide ring can be integrally formed with the top cover 13 to facilitate the manufacturing and assembly of the outdoor unit of the air conditioner.

[0118] As shown in Figure 1, an air outlet shroud 16 is connected to the casing 1. The air outlet shroud 16 is located at the outdoor air outlet 12 and covers the outside of the air guide ring. The air outlet shroud 16 can guide the airflow to be discharged in a specific direction. By optimizing the airflow path, the air outlet shroud 16 ensures that the heat exchange air discharged by the air conditioner can be quickly dispersed, reducing the energy loss during the operation of the outdoor unit 100 of the air conditioner and improving the performance and energy efficiency of the air conditioning system.

[0119] In some embodiments of this application, as shown in FIG3, the outdoor unit of the top-discharge air conditioner may include an outdoor heat exchanger 2, which is disposed in the mounting cavity 17 for heat exchange with the air inside the casing 1. The outdoor heat exchanger 2 is mounted on the chassis 14 and is positioned close to the outdoor air inlet 11.

[0120] Referring to Figure 4, the outdoor heat exchanger 2 is installed inside the outdoor air inlet 11 to exchange heat with the outdoor air entering the installation cavity 17 through the outdoor air inlet 11.

[0121] The outdoor heat exchanger 2 extends along the inner peripheral wall of the casing 1 within the mounting cavity 17 to increase the heat exchange area of ​​the outdoor heat exchanger 2 within the mounting cavity 17, thereby increasing the heat exchange effect of the outdoor heat exchanger 2.

[0122] In this embodiment, the outdoor heat exchanger 2 is installed on the chassis 14. The outdoor heat exchanger 2 is enclosed on the chassis 14 to form a semi-enclosed heat exchange space, which increases the area of ​​the outdoor heat exchanger 2 and thus increases the heat exchange effect of the outdoor heat exchanger 2.

[0123] As shown in Figures 2 and 3, in some embodiments of this application, the outdoor unit 100 of the air conditioner may include an outdoor fan 3. The outdoor fan 3 is disposed in the mounting cavity 17 and is used to drive outdoor air outside the housing 1 to enter the mounting cavity 17 through the outdoor air inlet 11, and drive the air in the mounting cavity 17 to flow along the outdoor air inlet 11 toward the outdoor air outlet 12.

[0124] The outdoor fan 3 is positioned close to the outdoor air outlet 12. As shown in Figure 2, the outdoor fan 3 is located inside the outdoor air outlet 12.

[0125] Outdoor fan 3 can be an axial flow fan. When an axial flow fan is used in the outdoor unit 100 of an air conditioner, its low aerodynamic noise and high air volume can improve the performance of the outdoor unit, thereby improving the performance of the entire air conditioning system.

[0126] As shown in Figure 4, the outdoor unit 100 of the air conditioner may include a compressor 4, which is disposed in the mounting cavity 17 within the housing 1. Referring again to Figure 4, the compressor 4 may be mounted on the chassis 14. The compressor 4 may be located below the outdoor fan 3.

[0127] An air conditioner may include an indoor unit, also known as an indoor air conditioning unit, which is installed indoors and used for heat exchange with the indoor environment. The indoor air conditioning unit includes an indoor heat exchanger.

[0128] The air conditioner may include a throttling device for flow control. The throttling device may be located in the indoor unit of the air conditioner or in the outdoor unit 100 of a top-discharge air conditioner.

[0129] An air conditioner may include a refrigerant circuit. This circuit uses connecting pipes to connect the indoor unit and the outdoor unit (for top-discharge air conditioners) to form a refrigerant circulation loop. Through this loop, the air conditioner allows the refrigerant to circulate sequentially through the compressor, condenser, throttling device, and evaporator, enabling it to perform indoor cooling or heating.

[0130] The indoor heat exchanger and outdoor heat exchanger 2 are used as condensers or evaporators. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in heating mode; when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in cooling mode.

[0131] Refrigeration and heating cycles include compression, condensation, expansion, and evaporation processes. They provide cooling or heating to the indoor space through the heat absorption and release processes of the refrigerant, thereby regulating the temperature of the indoor space.

[0132] The compressor compresses the refrigerant gas into a high-temperature, high-pressure state and discharges the compressed refrigerant gas, which then flows into the condenser.

[0133] The condenser condenses the compressed, high-temperature, high-pressure gaseous refrigerant into a liquid refrigerant, and the heat is released to the surrounding environment through the condensation process.

[0134] The liquid refrigerant flowing out of the condenser enters the throttling device, which expands the high-temperature, high-pressure liquid refrigerant after condensation in the condenser into a low-pressure liquid refrigerant.

[0135] The low-pressure liquid refrigerant flowing out of the throttling device enters the evaporator. As the liquid refrigerant flows through the evaporator, it absorbs heat and evaporates into a low-temperature, low-pressure refrigerant gas. The low-temperature, low-pressure refrigerant gas returns to the compressor.

[0136] The evaporator achieves its cooling effect by exchanging heat with the material being cooled using the latent heat of refrigerant evaporation. Throughout this entire cycle, the air conditioner regulates the temperature of the indoor space.

[0137] As shown in Figures 4 and 5, in some embodiments of this application, the chassis 14 may be a quadrilateral structure with chamfered corners, and the housing 1 is generally a cuboid structure.

[0138] The top-discharge air conditioner outdoor unit 100 may include an electronic control component for controlling the operating status of multiple components in the top-discharge air conditioner outdoor unit 100. Some of the electronic control component may be located in the mounting cavity 17.

[0139] As shown in Figures 10 and 11, the electronic control component may include an electronic control board 52, which is used to receive signals, analyze signals, and issue control commands to realize the electronic control function of the top-discharge air conditioner outdoor unit 100.

[0140] The electronic control board 52 is electrically connected to at least the compressor 4, the throttling device, and the outdoor fan 3 to control the operation of the compressor, the throttling device, and the outdoor fan.

[0141] It is understandable that the electronic control board 52 is equipped with the components required to control the operation of the top-discharge air conditioner outdoor unit 100. This is prior art in the field and will not be described in detail here.

[0142] As shown in Figures 2 and 5, the electronic control assembly may include an electronic control box 5, which is mounted on the housing 1 and located outside the mounting cavity 17. As shown in Figure 2, the electronic control box 5 is positioned above the chamfered corner of the chassis 14.

[0143] Referring to Figures 7 and 11, the interior of the electrical control box 5 has a receiving cavity 58, which is used to receive the electrical control board 52, so as to provide a reliable installation and working environment for the electrical control board 52.

[0144] It should be noted that the cavity 58 here can be closed or partially open, and should be regarded as a three-dimensional space.

[0145] Referring to Figures 6 and 7, in some embodiments, the top of the receiving cavity 58 has an opening that cooperates with the top cover 13 of the housing 1 to cover the opening, thereby preventing dust, impurities, rainwater and the like from entering the receiving cavity 58 through the opening.

[0146] As shown in Figure 10, during the operation of the electronic control board 52, the components on it will generate a lot of heat, causing their temperature to rise rapidly. If they cannot be dissipated in time, the performance of the components will be reduced or even burned out.

[0147] In order to dissipate heat from the electronic control board 52 and ensure its normal operation, in some embodiments, the top electronic control assembly may include a heat dissipation component.

[0148] The heat dissipation component is installed on the side of the electronic control board 52 facing the mounting cavity 17. It absorbs and dissipates the heat generated by the electronic control board 52 into the surrounding air through heat conduction, thus playing a role in heat dissipation for the electronic control box 5.

[0149] In this embodiment, the heat dissipation component can be an air-cooled radiator 56. As shown in Figures 6 and 7, the heat dissipation fins 561 of the air-cooled radiator 56 penetrate through the electrical control box 5 and extend into the mounting cavity 17, so as to use the airflow generated by the outdoor fan to carry away the heat around the heat dissipation fins 561, thereby improving the heat dissipation effect of the electrical control components.

[0150] It should be noted that the air-cooled heat sink 56 may include a base plate, which is connected to the electronic control board. The air-cooled heat sink 56 may include multiple heat dissipation fins 56 disposed on the base plate. The multiple heat dissipation fins 56 are arranged in the same direction and are spaced apart along the same direction. The arrangement of heat dissipation fins 56 can increase the heat dissipation area of ​​the air-cooled heat sink 56, and the gaps between the heat dissipation fins 56 facilitate airflow and heat dissipation.

[0151] Referring to Figures 6 and 7, the heat dissipation fins 561 of the air-cooled radiator 56 penetrate through the electrical control box 5 and extend into the mounting cavity 17, so as to use the airflow generated by the outdoor fan to carry away the heat around the heat dissipation fins 561 and improve the heat dissipation effect of the electrical control components.

[0152] As shown in Figure 7, in some embodiments, the electronic control component may include an air guide 20 located in the mounting cavity 17. By setting the air guide 20, the airflow can be guided so that the air can flow along a predetermined path, thereby improving the heat dissipation efficiency.

[0153] Referring again to Figure 7, the air guide 20 is connected to the electrical control box 5 to cover at least part of the heat dissipation fins 561. This arrangement allows the air guide 20 and the electrical control box 5 to form a relatively closed and independent heat dissipation area, which can isolate the heat dissipation fins 561 from external debris, while ensuring the concentration and efficiency of heat dissipation.

[0154] As shown in Figures 9 and 11, in some embodiments, the air guide 20 defines a heat dissipation duct 202. The bottom of the heat dissipation duct 202 is connected to the outdoor environment, and the top of the heat dissipation duct 202 is provided with a heat dissipation outlet 201. The air from the external environment enters the heat dissipation duct 202 and carries away the heat from the air-cooled radiator 56. Then, it flows into the mounting cavity 17 through the heat dissipation outlet 201 and is discharged to the outdoor environment by the outdoor fan. This avoids heat accumulation that could cause the temperature of the electronic control board 52 to rise, thereby ensuring the normal operating temperature of the electronic control board 52 and improving the cooling performance and reliability of the outdoor unit of the air conditioner.

[0155] In this embodiment, the bottom of the heat dissipation duct 202 is connected to the outdoor environment, and the top of the heat dissipation duct 202 is provided with a heat dissipation outlet 201, so that the heat dissipation duct 202 takes in air from the bottom and exits air from the top, which conforms to the characteristic of hot air flow to flow upward, and prevents the heat dissipation duct 202 from failing to play its role effectively due to chaotic or obstructed air flow direction, thus affecting heat dissipation efficiency and cooling performance.

[0156] As shown in Figures 5 and 7, in some other embodiments, the electrical control box 5 is provided with a heat dissipation air inlet 57, and the air guide 20 is connected to the electrical control box 5 to cover at least part of the heat dissipation fins 561 and the heat dissipation air inlet 57.

[0157] The heat dissipation air inlet 57 connects the mounting cavity 17 to the external environment, serving as an inlet for air to flow into the external environment of the housing 11. By providing a heat dissipation air inlet, it is convenient to introduce external air, providing the necessary air source for subsequent heat dissipation processes.

[0158] Referring to Figures 7 and 9, the heat dissipation air inlet 57 is located below the heat dissipation fins 561, and the top of the air guide 20 is provided with a heat dissipation air outlet 201 that communicates with the mounting cavity 17. The heat dissipation air inlet 57 and the heat dissipation air outlet 201 communicate to form a heat dissipation air duct 202.

[0159] As shown in Figures 7, 9, and 11, the heat dissipation fins 561 are located in the heat dissipation duct 202. When the outdoor fan operates, it drives air from the external environment into the heat dissipation duct 202 through the lower heat dissipation air inlet 57, and the air flows through the heat dissipation fins 561, carrying away heat. The air then flows out through the heat dissipation air outlet 201 and finally out to the external environment through the outdoor air outlet, achieving effective heat dissipation circulation. The arrows in Figure 11 indicate the direction of airflow.

[0160] In this embodiment, the heat dissipation vent 201 can be an open opening at the top of the air guide 20.

[0161] In related technologies, the outdoor unit 100 of a top-discharge air conditioner is installed outdoors, with the outdoor air outlet 12 located at the top of the casing 1. Dust, cottonwood fluff, willow catkins, leaves, and other impurities can drift into the mounting cavity 17 from the air outlet shroud. The top of the air guide 20 has a heat dissipation outlet 201, which exposes the top of the air-cooled radiator 56 to harsh environments, making it highly susceptible to clogging. Clogging of the heat dissipation fins 561 reduces heat dissipation efficiency, leading to increased temperature of components on the electronic control board 52, affecting cooling performance, and in severe cases, impacting the lifespan of the components.

[0162] As shown in Figure 8, in order to solve the above-mentioned technical problems, in some embodiments, the top-discharge air conditioner outdoor unit 100 may include a baffle 10, which is disposed above the air-cooled radiator 56.

[0163] Referring to Figures 8 to 10, the top of the baffle 10 is connected to the electrical control box 5, which can form a physical barrier above the air-cooled radiator 56, effectively preventing foreign objects such as sand, poplar catkins, willow catkins, and leaves from drifting into the installation cavity 17 from the outdoor air outlet 12 and clogging the heat dissipation fins 561.

[0164] Referring to Figure 10, the downward projection of the baffle 10 along the height direction of the casing 1 covers the heat dissipation fins 561, ensuring that the baffle 10 can fully cover the upper area of ​​the heat dissipation fins 561. The bottom of the baffle 10 is no higher than the height of the blade tip of the outdoor fan, ensuring effective protection for the heat dissipation fins 561.

[0165] In some embodiments, by setting a baffle 10 and making the bottom height of the baffle 10 lower than the blade tip height of the outdoor fan, while the projection of the baffle 10 downward along the height direction of the housing 1 covers the heat dissipation fins 561, foreign objects can be effectively blocked from entering the heat dissipation fins 561 area, preventing them from getting dirty and clogged, thereby improving heat dissipation efficiency, ensuring the normal operating temperature of the components on the electronic control board 52, improving cooling performance and extending the life of the electronic control board 52.

[0166] As shown in Figure 12, in some embodiments, in order not to affect the heat dissipation effect of the air-cooled radiator 56, the baffle 10 is provided with a plurality of ventilation louvers 101. The ventilation louvers 101 allow air circulation, meet the heat dissipation requirements, and can block large particles of foreign objects from entering directly, thus taking into account both dust prevention and heat dissipation functions, so that the air-cooled radiator 56 can be effectively dissipated, and the heat dissipation effect is not affected by adding the baffle 10.

[0167] In some embodiments, the projection of the ventilation louvers 101 onto the electrical control box 5 extends along the height direction of the housing 1. That is, the ventilation louvers 101 tend to be vertically arranged.

[0168] The vertical arrangement of the ventilation louvers 101 conforms to the natural law of hot air rising, which can guide the airflow direction, allowing the hot air passing through the heat dissipation fins 561 to be quickly discharged, optimizing the heat dissipation airflow field, reducing airflow dead zones, and improving heat dissipation efficiency.

[0169] Meanwhile, by setting the projection of the ventilation louvers 101 on the electrical control box 5 to extend along the height direction of the casing 1, the horizontal ventilation area can be reduced, making it difficult for dust and impurities to enter the space between the baffle 10 and the electrical control box 5 through the ventilation louvers 101, reducing the possibility of foreign objects drifting in horizontally, and achieving an effective balance between dust prevention and heat dissipation.

[0170] Referring to Figure 10, in some embodiments of this application, the distance between the bottom end of the baffle 10 and the blade tip of the outdoor fan in the axial direction of the outdoor fan is m. m ≤ 60 mm.

[0171] By controlling the distance between the bottom of the baffle 10 and the tip of the outdoor fan blades within a reasonable range, the dustproof effect of the baffle 10 is ensured, the airflow of the outdoor fan is not excessively interfered with, and the noise generation is reduced.

[0172] The distance m cannot be too large. An excessively large distance m would result in an excessively large vertical distance between the bottom of the baffle 10 and the outdoor fan, increasing the height of the casing 1 and affecting the wind performance. To avoid increasing the overall size of the unit, the distance m is set to no greater than the first parameter value, which can be any value between 55mm and 60mm.

[0173] When designing, consider selecting a suitable and specific parameter. For example, the first parameter value could be 60mm to meet the requirements for heat dissipation and dust protection.

[0174] It should be noted that in this embodiment, without considering increasing the height of the casing 1, the distance m is set within the range of 0 to 60 mm. A reasonable distance setting helps maintain the uniformity of the outdoor fan's airflow and avoids airflow turbulence caused by the baffle 10 being too close to or too far from the fan.

[0175] In some embodiments of this application, the distance between the bottom end of the baffle 10 and the blade tip of the outdoor fan is m. m ≥ 0 mm. m ≤ 40 mm.

[0176] In some embodiments, the distance m is set to: m≥0mm, m≤40mm. The layout design within this size range, while ensuring dustproof effect, is more inclined to ensure good airflow, so that air can pass smoothly through the air-cooled heat sink 56, thereby ensuring the heat sink's air outlet efficiency, which is conducive to maintaining the normal working temperature of the heat sink, ensuring its efficient heat dissipation performance, and thus maintaining the temperature of the components on the electronic control board 52 within a reasonable range, ensuring stable cooling performance, and also helping to extend the service life of the module.

[0177] In some embodiments of this application, the distance between the bottom end of the baffle 10 and the blade tip of the outdoor fan is m. m > 40 mm. m ≤ 60 mm.

[0178] In some embodiments, the distance m is set to: m > 40mm and m ≤ 60mm. Layout designs within this size range ensure dustproof performance while reducing the noise of the outdoor fan, thus improving the user experience.

[0179] Referring to Figures 11 and 12, in some embodiments of this application, the baffle 10 may include a first plate 102, the top of which is connected to the side wall of the electrical control box 5, so that the baffle 10 and the electrical control box 5 form an integral structure, which improves the stability and reliability of the connection, and also facilitates installation and fixing.

[0180] Referring again to Figures 11 and 12, the baffle 10 may include a second plate 103, the top end of which is connected to the bottom end of the first plate 102.

[0181] The baffle 10 may include a third plate 104, the top end of the third plate 104 being connected to the bottom end of the second plate 103, and the bottom end of the third plate 104 being a free end.

[0182] In this embodiment, the baffle 10 formed by the first plate 102, the second plate 103 and the third plate connected from top to bottom has a tendency to tilt downwards toward the side wall away from the electrical control box 5, which can better guide the airflow after passing through the heat dissipation fins 561 to flow in a specific direction and improve heat dissipation efficiency.

[0183] By designing the baffle 10 as a series of connected plates, it can better adapt to different structural and spatial requirements, improve the versatility and flexibility of the baffle 10, and also facilitate air guidance and circulation.

[0184] Referring to Figure 13, the third plate 104 forms an acute angle α with the plane perpendicular to the axial direction F of the outdoor fan 3, where α ≥ 10°.

[0185] In this embodiment, the third body 104 forms an acute angle of not less than 10° with the plane perpendicular to the axial direction F of the outdoor fan 3, which is beneficial to guide the airflow direction, allowing the air to pass through the heat dissipation duct 202 more smoothly, reducing the airflow resistance and improving the heat dissipation efficiency.

[0186] The acute angle α cannot be too small. If it is too small, the third body will tend to be horizontal, causing greater resistance and turbulence when the cooling airflow passes through the heat dissipation fins 561 and then through the third plate 104. This will affect the heat dissipation effect and make it impossible to guide the airflow direction. To improve the heat dissipation effect, the acute angle α is set to be no less than the second parameter value, which can be any value between 10° and 20°.

[0187] When designing, consider selecting a suitable parameter. For example, a second parameter value of 10° can effectively prevent the problem of insufficient change in airflow direction due to an angle that is too small, thus improving heat dissipation.

[0188] Referring again to Figure 13, in some embodiments of this application, the second plate 103 extends along the axial direction F of the outdoor fan 3, and the horizontal distance between the second plate 103 and the outdoor fan 3 is L. L≥15mm.

[0189] The horizontal distance L cannot be too small; otherwise, a safe distance cannot be guaranteed between the second plate 103 and the outdoor fan 3, affecting the operation of the outdoor fan. To ensure a sufficient safe distance between the second plate 103 and the outdoor fan, the horizontal distance L is set to be no less than the third parameter value, which can be any value between 15mm and 25mm. A suitable specific parameter should be selected during the design process. For example, the third parameter value could be 15mm.

[0190] In this embodiment, the second plate 103 is configured to extend vertically, and the distance L is reasonably set to ensure sufficient distance between the second plate 103 and the outdoor fan, so as to avoid interference or collision with the second plate 103 when the outdoor fan rotates, and at the same time provide sufficient space for the flow of heat dissipation air to ensure the smooth flow of heat dissipation air duct 202.

[0191] Referring to Figures 10 and 13, in some embodiments, an air outlet duct 105 is defined between the baffle 10 and the electrical control box 5, and the air outlet duct 105 has a trend of being wide at the bottom and narrow at the top.

[0192] In this embodiment, the cooling airflow exiting the heat dissipation fins 561 is hot airflow, which tends to rise. By setting the air outlet duct 105 to be wide at the bottom and narrow at the top, the airflow can gradually accelerate after entering the air outlet duct 105, increasing the wind speed and thus more effectively and quickly carrying away the heat around the air-cooled radiator 56 and expelling it to the external environment. At the same time, the above arrangement makes the baffle 10 tend to tilt downwards, avoiding the accumulation of dust and impurities on the baffle 10.

[0193] As shown in Figures 7 and 14, in some embodiments of this application, the electrical control box 5 may include a support plate 53. The support plate 53 is connected to the housing 1 and serves to separate the receiving cavity 58 from the mounting cavity 17.

[0194] By connecting the support plate 53 to the housing 1, the receiving cavity 58 and the mounting cavity 17 can be effectively separated to form two relatively independent spaces, which can be used to separate the electrical control area and the heat exchange area, and avoid mutual interference between electrical control components and other components.

[0195] The support plate 53 is a sheet metal part. Using sheet metal as the support plate 53 provides high strength and rigidity, enabling it to provide a stable and reliable support structure for the electrical control box 5, ensuring the stability of the electrical control box 5 during installation and use.

[0196] As shown in Figure 16, the electrical control box 5 may include a base plate 51, which is disposed on the side of the support plate 53 away from the mounting cavity 17, to form the bottom wall of the receiving cavity 58.

[0197] The base plate 51 provides a stable bottom wall structure for the receiving cavity 58, enhancing the overall structural strength of the receiving cavity 58.

[0198] As shown in Figure 15, the electrical control box 5 may include a through portion 531, which is formed on the support plate 53 for the heat dissipation fins 561 to pass through.

[0199] As shown in Figures 7 and 15, by providing the through section 531, the heat dissipation fins 561 can pass through the support plate 53 from the receiving cavity 58 and enter the mounting cavity 17, which provides conditions for the formation of the heat dissipation air duct 202 and for the use of an outdoor fan to dissipate heat from the air-cooled radiator 56.

[0200] Referring to Figure 15, the through section 531 is located above the heat dissipation air inlet section 57. The heat dissipation air duct 202 is configured such that air enters from the bottom heat dissipation air inlet section 57, flows upward through the heat dissipation fins 561, and then flows out through the ventilation louvers 101, forming a reasonable and efficient heat dissipation circulation path, which is beneficial to improving the heat dissipation efficiency of the electrical control box 5.

[0201] Referring again to Figure 15, the electrical control box 5 may include a box body 54, which is mounted on the support plate 53 for mounting the electrical control board 52. The box body 54 is made of plastic.

[0202] Using plastic parts as the housing 54 has advantages such as light weight, low cost, and good insulation performance, and facilitates the installation and fixing of the electrical control board 52.

[0203] In this embodiment, a mounting groove is provided on the housing 54, and the electronic control board 52 is placed in the mounting groove. A snap-fit ​​structure is provided on the side wall of the mounting groove, which snaps into the side of the electronic control board 52 away from the housing 54 to prevent the electronic control board 52 from detaching from the mounting groove.

[0204] Referring to Figures 14 and 15, the electrical control box 5 may include a cover 55, which covers the support plate 53. The cover 55, the support plate 53, and the base plate 51 together form a receiving cavity 58 with an open top, and a heat dissipation air inlet 57 is provided on the support plate 53 and located below the base plate 51.

[0205] In this embodiment, the enclosure of the cover 55, the support plate 53 and the bottom plate 51 forms a receiving cavity 58 with an open top, providing reasonable space for the arrangement of the electronic control board 52 and the box 54.

[0206] Meanwhile, the heat dissipation air intake 57 is located below the base plate 51, which not only facilitates air to enter the heat dissipation air duct 202 from the bottom and form a good heat dissipation circulation, but also prevents rainwater and dust from entering the mounting cavity 17 through the heat dissipation air intake 57 to a certain extent.

[0207] As shown in Figures 1 and 15, in some embodiments, the cover 55 is connected to the top cover 13 by fasteners. On the one hand, the top cover 13 constrains the cover 55, increasing the firmness of the connection of the electrical control box 5. On the other hand, the top cover 13 can seal the opening at the top of the receiving cavity 58, preventing foreign objects such as dust and rainwater from entering the receiving cavity 58, further improving the sealing and protection performance of the electrical control box 5.

[0208] As shown in Figures 14 and 16, further to improve the heat dissipation efficiency of the control board 52, the control box 5 is provided with a ventilation inlet 512, which is connected to the receiving cavity 58, allowing outdoor air to enter the receiving cavity 58 through the ventilation inlet 512. The control box 5 is also provided with a ventilation outlet 532, allowing air in the receiving cavity 58 to exit the receiving cavity 58 through the ventilation outlet 532.

[0209] The outdoor fan 3 operates, drawing outdoor air into the housing cavity 58 through the ventilation inlet 512. After passing through the electronic control board 52 for heat exchange, the air exits the housing cavity 58 through the ventilation outlet 532. The air carries away the heat generated by the operation of the electronic control board 52, thereby dissipating heat from the electronic control board 52.

[0210] It should be noted that the air temperature after passing through the electronic control board 52 is usually higher than the air temperature before passing through the electronic control board 52. Since hot air has a low density, according to air thermodynamics, setting the ventilation inlet 512 lower than the ventilation outlet 532 can allow for better airflow.

[0211] As shown in Figures 14 and 16, in some embodiments, in order to increase the airflow speed in the receiving cavity 58 and increase the heat dissipation effect of the air on the electrical control box 5, a ventilation outlet 532 is provided on the support plate 53.

[0212] The ventilation outlet 532 is located above the electronic control board 52. The ventilation outlet 532 connects the mounting cavity 17 and the receiving cavity 58 so that the air in the receiving cavity 58 can flow faster under the driving action of the outdoor fan 3.

[0213] The electrical control box 5 contains a terminal block 591, which is connected to the electrical control board 52. The terminal block 591, also known as a terminal block or wiring terminal, is an electrical component used to connect and arrange wires and cables. Its main function is to connect multiple wires to a single terminal, thereby enabling circuit connection and power distribution.

[0214] It should be noted that terminal blocks typically consist of rails with multiple metal terminals and screws. These screws are used to clamp the wires, ensuring that current can be smoothly transmitted through the terminal block. This is common knowledge in the field and will not be elaborated further.

[0215] The terminal block also generates heat during operation. The heat inside the electrical control box 5 includes the heat generated by the electrical components on the electrical control board 52 during operation, as well as the heat generated by the terminals during operation.

[0216] Referring to Figure 16, in order to dissipate heat from the terminal block 591, the terminal block 591 is positioned close to the ventilation inlet 512 so that the heat generated by the terminal block 591 during operation can be dissipated in a timely manner.

[0217] The terminal block 591 is located below the electrical control board 52, which not only facilitates wiring connections, but also saves the horizontal space occupied by the terminal block 591 and the electrical control board 52, making it easier to arrange the terminal block 591 and the electrical control board 52 inside the electrical control box 5.

[0218] Referring again to Figure 16, the electrical control box 5 may include a mounting plate 592 for placing terminal blocks 591. Since the terminal blocks 591 are located below the electrical control board 52, the mounting plate 59 is also located below the electrical control board 52. The mounting plate 59 is positioned close to the base plate 51, and there is a certain distance between the mounting plate 59 and the base plate 51 along the height direction of the housing 100 to prevent the mounting plate 59 from obstructing the ventilation inlet 512 and blocking the air entering the receiving cavity 58 from the ventilation inlet 512.

[0219] It should be noted that since the terminal block 591 is located close to the ventilation inlet 512, water droplets splashed back into the receiving cavity 58 from the ventilation inlet 512 can easily affect the normal operation of the terminal block 591. By installing the terminal block 591 with the mounting plate 59, the mounting plate 59 can block the water droplets and prevent the water droplets splashed back into the receiving cavity 58 from the ventilation inlet 512 from contacting the terminal block 591.

[0220] The mounting plate 59 and the base plate 51 together define a connecting ventilation channel, through which air flows in the receiving cavity 58 via the ventilation inlet 512.

[0221] In related technologies, terminal blocks are typically placed horizontally to reduce wire bending and ensure the stability and safety of the connection cables. However, horizontal placement increases the space occupied by the terminal block in the horizontal direction, while vertical placement may require operators to stand or bend over during wiring, which can increase the difficulty and inconvenience of wiring. Moreover, if vertically placed terminal blocks are not securely fixed or are subjected to external forces, they may sway or tilt. This may not only affect the stability of the wiring but also pose a potential threat to the overall safety of the outdoor unit of the air conditioner.

[0222] Based on this, in this embodiment, a placement surface is defined on the mounting plate 592. The placement surface is an inclined surface that slopes downward in the horizontal direction away from the support plate 53, so that the terminal block is placed at an angle in the receiving cavity 58. This not only facilitates the wire connection operation, but also reduces the space occupied by the terminal block in the horizontal direction in the receiving cavity 58.

[0223] Since the electrical control box 5 is located outside the mounting cavity 17, rainwater or dust may enter the housing cavity 58 through the ventilation inlet 512 and / or ventilation outlet 532, affecting the normal operation of the electrical control board 52 and / or terminal block.

[0224] Based on this, as shown in Figures 15 and 16, the ventilation inlet 512 is provided on the base plate 51, with the opening of the ventilation inlet 512 facing downwards, so as to prevent dust or water droplets from entering the receiving cavity 58 through the ventilation inlet 512.

[0225] Referring again to Figures 15 and 16, the ventilation outlet 532 is provided on the support plate 53. The ventilation outlet 532 is located near the top of the support plate 53 to prevent dust or water droplets from entering the receiving cavity 58 through the ventilation outlet 532.

[0226] In some embodiments, referring to Figures 16 and 19, a heating module 521 is provided on the side of the control board 52 facing the support plate 53. The air-cooled heat sink 56 abuts against the heating module 521. The heat of the heating module 521 is transferred to the air-cooled heat sink 56 by heat transfer, and the heat of the heating module is dissipated by the air-cooled heat sink 56.

[0227] The heating module 521 has pins that are soldered to the control board 52. The heating module 521 is located away from other modules and is the module most prone to overheating during operation of the control board 52. The heating module 521 can be all or part of the compressor's IPM module, IGBT switching transistor, PFC diode FRD, rectifier bridge, and outdoor fan's IPM module.

[0228] As shown in Figures 19 and 20, in some embodiments, the housing 54 is provided with an opening 541, through which the heating module 521 passes. In this embodiment, a fan-cooled radiator 56 is connected to the side of the opening 541 of the housing 54, so that the fan-cooled radiator 56 abuts against the heating module 521.

[0229] Furthermore, as shown in Figures 16, 19, and 20, the heating module 521 is mounted on the side of the control board 52 facing the support plate 53 via a support bracket 542. The air-cooled radiator 56 and the support bracket 542 are fixedly connected, thereby clamping the heating module 521 between the support bracket 542 and the air-cooled radiator 56, eliminating the need for separate fixing of the heating module 521 and improving assembly / disassembly efficiency.

[0230] In the above embodiments, the air-cooled heat sink 56 is used to dissipate heat from the electronic control board 52. However, the heat dissipation duct and the air-cooled heat sink 56 are exposed to wind, rain, and dust, which can easily cause the heat sink fins to become clogged, affecting the heat dissipation effect. By setting up a baffle, foreign objects can be effectively blocked from entering the heat sink fin area, preventing them from becoming clogged, thereby improving heat dissipation efficiency, ensuring the normal operating temperature of the components on the electronic control board 52, improving cooling performance, and extending the life of the electronic control board 52. However, when using the air-cooled heat sink 56 for heat dissipation during high-temperature cooling, there are drawbacks such as poor heat dissipation effect and low cooling capacity.

[0231] Therefore, in some other embodiments, as shown in Figures 21 and 22, the heat dissipation component can be a refrigerant heat dissipation component. The refrigerant heat dissipation component uses the cooling capacity of the refrigerant to dissipate heat from the heat-generating module 521 of the electronic control board 52. Compared with the air-cooled radiator 56, the heat dissipation effect of using refrigerant heat dissipation is better.

[0232] Referring to Figure 22, in some embodiments, the refrigerant heat dissipation component may include a refrigerant radiator 30. The refrigerant radiator 30 abuts against the heat-generating module 521, and uses the circulating refrigerant to quickly remove heat, so that the heat generated by the electronic control board 52 is directly absorbed by the refrigerant radiator 30, thereby meeting the requirement of rapid heat dissipation of the electronic control board 52 and improving the heat dissipation efficiency of the electronic control board 52 in the electronic control box 5.

[0233] As shown in Figures 24 and 26, in this embodiment, the refrigerant radiator 30 can directly absorb and remove the heat released by the electronic control board 52, achieving efficient heat dissipation. Combined with the ventilation inlet 512 and ventilation outlet 532, the airflow generated by the outdoor fan carries away the absorbed heat for auxiliary heat dissipation. This composite heat dissipation method can rationally allocate heat dissipation resources according to the different heat-generating components and heat dissipation requirements on the electronic control board 52, improving the overall heat dissipation efficiency and effect, and ensuring that the temperature of each part of the electronic control board 52 remains within a reasonable range.

[0234] When the air conditioner is heating and the refrigerant radiator 30 is used to dissipate heat from the control board 52, the air temperature inside the mounting cavity 17 is about 3°C ​​lower than the external ambient temperature, while the refrigerant temperature inside the refrigerant radiator 30 is about 2°C higher than the indoor temperature. Therefore, the air temperature inside the support plate 53 is much higher than the outside temperature, meaning the air temperature inside the containment cavity is much higher than the air temperature inside the mounting cavity, significantly increasing the risk of condensation forming inside the support plate 53.

[0235] The conventional solution is to apply PE insulation cotton to the support plate 53 to solve the condensation problem. However, this solution has many drawbacks, such as the unevenness of the support plate 53, the easy peeling off of the insulation cotton, and the fact that this area is exposed to sunlight and wind and rain, which further increases the risk of the insulation cotton falling off. This solution cannot effectively solve the condensation problem, affects the normal operation and service life of the outdoor unit of the air conditioner, and increases maintenance costs and safety hazards.

[0236] Referring to Figure 22, in some embodiments, in order to solve the condensation problem on the support plate 53, the refrigerant heat dissipation component may include an isolation member 40, which is disposed on the support plate 53.

[0237] The isolator 40 is connected between the support plate 53 and the heating module 521 to block the heat conduction between the refrigerant radiator 30 and the support plate 53. It can effectively prevent the temperature of the refrigerant in the refrigerant radiator 30 from being transferred to the support plate 53, thus avoiding condensation caused by temperature difference.

[0238] In this embodiment, by setting the isolation element 40 to block the heat conduction between the support plate 53 and the refrigerant radiator 30, the risk of condensation on the support plate 53 is reduced. At the same time, even if condensation occurs on the support plate 53, the isolation element 40 can prevent the condensation on the support plate 53 from flowing to the refrigerant radiator 30, effectively preventing the condensation from contacting the control board 52 through the heating module, and ensuring the stable operation of the control board 52.

[0239] Referring to Figure 24, in some embodiments, the side of the spacer 40 away from the support plate 53 is provided with a mounting position 403 for mounting the refrigerant radiator 30. The refrigerant radiator 30 is mounted on the mounting position 403 so that the refrigerant radiator 30 and the spacer 40 define a refrigerant heat dissipation component.

[0240] By setting the mounting position 403 for installing the refrigerant radiator 30, the installation of the refrigerant radiator 30 can be made more stable and the positioning more accurate. At the same time, it is easier for the refrigerant radiator 30 to fit tightly with the heat-generating module 521, thereby improving heat dissipation efficiency.

[0241] The mounting position 403 can be a receiving slot. Referring to Figures 24 and 29, the refrigerant radiator 30 is fitted into the receiving slot.

[0242] The receiving slot allows part of the refrigerant radiator 30 to be embedded into the isolation member 40, which not only saves space but also enhances the bonding strength between the refrigerant radiator 30 and the isolation member 40, further improving the heat dissipation effect and installation stability.

[0243] In some embodiments of this application, the spacer 40 is mounted on the support plate 53 by fasteners such as screws or bolts.

[0244] The isolation component 40 is installed using fasteners such as screws or bolts to ensure a stable connection between the isolation component 40 and the support plate 53, thereby ensuring that the isolation component 40 can stably perform its function of blocking heat conduction and preventing condensation for a long period of time.

[0245] Referring to Figure 30, in some embodiments of this application, a flow guiding structure is provided between the isolation member 40 and the support plate 53. The flow guiding structure is used to guide the condensate generated on the support plate 53. The flow guiding structure defines a flow guiding channel 406 between the isolation member 40 and the support plate 53.

[0246] Understandably, the flow channel 406 can guide the condensate generated on the support plate 53 to a preset position. Guiding the condensate to the preset position allows for centralized collection or discharge of the condensate, reducing its impact on other components and extending the service life of the electrical control components.

[0247] In this embodiment, by setting a flow guiding structure, the condensate generated on the support plate 53 can be guided in an orderly manner, avoiding the condensate from flowing randomly or accumulating on the support plate 53 and making it difficult to drain. This prevents problems such as short circuits and corrosion of the electrical control board 52 caused by condensate, and reduces the risk of damage to the internal components of the electrical control box caused by condensate.

[0248] Referring to Figure 25, in some embodiments, the flow guiding structure may include a plurality of flow guiding portions 401 disposed on the separator 40. The plurality of flow guiding portions 401 extend along the height direction of the housing and are spaced apart in the same direction.

[0249] The guide section 401 extends along the height of the casing, which can effectively guide the condensate downwards and prevent the condensate from accumulating on the isolation member 40 and flowing along the isolation member 40 to the refrigerant radiator 30. This further improves the condensate discharge efficiency and avoids the risk of short circuit during the operation of the electronic control board 52.

[0250] In some embodiments, the guide portion 401 may be a rib or a groove.

[0251] The raised ribs or grooves, serving as the flow guide 401, have excellent flow guiding performance. They can not only effectively guide the flow direction of condensate to meet different design requirements and spatial layout requirements, but also make the processing technology of the flow guide 401 simple and easy to implement.

[0252] Referring to Figure 30, in some embodiments of this application, the width dimension of the flow guiding structure is w, where w ≥ 1 mm.

[0253] By setting the width of the flow guiding structure within a reasonable range, the flow guiding channel can be ensured to be spacious enough so that the condensate can pass through smoothly. This avoids condensate blockage or overflow caused by the flow guiding channel being too narrow, which would affect the flow guiding effect and the normal operation of the electronic control board 52.

[0254] The width of the flow guiding structure should not be too small; otherwise, the condensate water will not be able to pass through smoothly, affecting the flow guiding effect. To avoid the flow guiding channel being too narrow and affecting the flow guiding effect, the width W of the flow guiding structure should be set to be no less than the fourth parameter value, which can be any value between 1mm and 3mm.

[0255] In the specific design, consider selecting a suitable parameter. For example, the fourth parameter value could be 1mm. Properly setting the width of the guide structure ensures sufficient space for condensate drainage, guaranteeing its smooth flow.

[0256] It is understandable that the width of the flow guiding structure is the distance between the isolation element 40 and the support plate 53.

[0257] In some embodiments of this application, the spacer 40 may be made of plastic.

[0258] In this embodiment, the plastic insulating component 40 has good thermal insulation properties, which can better block heat conduction between the support plate 53 and the refrigerant radiator 30, avoiding the possibility of condensation on the support plate 53. At the same time, the plastic insulating component 40 has good corrosion resistance, resisting the erosion of condensate and improving its service life.

[0259] As shown in Figures 22 and 29, in some embodiments of this application, the side of the support plate 53 is recessed in the direction of the mounting cavity to form a receiving portion 533. The receiving portion 533 is used to accommodate the isolation member 40 and the refrigerant radiator 30 so that the box body fits against the support plate 53.

[0260] In this embodiment, by concealing the refrigerant radiator 30 and the isolation member 40 within the accommodating portion 533, the box body is made to fit with the support plate 53, thereby isolating the refrigerant radiator 30 from external rainwater, sand, and dust. No additional sealing structure is required, which simplifies the structure and improves the reliability of rain and dust protection.

[0261] As shown in Figure 28, in some embodiments of this application, the refrigerant radiator 30 may include a heat dissipation substrate 301, which is used to conduct heat.

[0262] The heat dissipation substrate 301 can be made of materials with excellent thermal conductivity, such as aluminum or copper. The heat dissipation substrate 301 made of aluminum or copper can quickly conduct the heat generated by the heat-generating module 521, improve the heat dissipation efficiency of the refrigerant radiator 30, ensure that the heat-generating module 521 operates at a suitable temperature, and ensure the stable operation of the electronic control board 52.

[0263] Referring again to Figure 28, the refrigerant radiator 30 may include a cooling pipe 302 for supplying refrigerant. The cooling pipe 302 is embedded in the heat dissipation substrate 301, allowing the refrigerant to directly absorb the heat transferred by the heat dissipation substrate 301 and carry it away, thereby achieving efficient heat exchange, enhancing the heat dissipation capacity of the refrigerant radiator 30, and effectively reducing the temperature of the heat-generating module 521.

[0264] Referring to Figure 28, a groove 3011 is provided on one side of the heat dissipation substrate 301, and the cooling pipe 302 is fixed in the groove 3011 by a pressing process. The heat dissipation module 521 is attached to the other side of the heat dissipation substrate 301.

[0265] The cooling pipe 302 has a refrigerant flow channel for refrigerant flow. The refrigerant flowing into the refrigerant circuit in the refrigerant flow channel absorbs heat and removes heat.

[0266] In this embodiment, one end of the cooling pipe 302 can be connected to the throttling device of the outdoor unit of the air conditioner through a pipe, and the other end of the cooling pipe 302 is connected to the low-pressure gas pipe of the outdoor unit of the air conditioner through a pipe.

[0267] It is understood that one end of the refrigerant pipe in the refrigerant circuit can serve as the cooling pipe 302. That is to say, the cooling pipe 302 in this application can be directly connected to and formed by the refrigerant pipe in the refrigerant circuit.

[0268] Of course, the cooling pipe 302 of this application can also be a pipe of similar material and shape to the refrigerant pipe. The refrigerant pipe is connected to the cooling pipe 302, so that the refrigerant in the refrigerant pipe can enter the cooling pipe 302 and use its own cooling capacity to dissipate heat. There is no need to set up a separate refrigerant supply system, but to directly use the refrigerant circuit of the air conditioner.

[0269] In some embodiments of this application, referring to FIG27, a heat-conducting plate 50 is sandwiched between the refrigerant radiator 30 and the heating module 521, and the heat-conducting plate 50 is used to conduct heat. The arrangement of the heat-conducting plate 50 can further optimize the heat conduction path and reduce the contact thermal resistance between the refrigerant radiator 30 and the heating module 521.

[0270] Referring to Figures 24 and 27, in this embodiment, the heat-conducting plate 50 is sandwiched between the refrigerant radiator 30 and the heating module 521, and the heat-conducting plate 50 is thermally connected to both the refrigerant radiator 30 and the heating module 521. When the control board 52 is working, the heat generated by the heating module 521 is directly absorbed by the heat-conducting plate 50. Utilizing the excellent thermal conductivity of the heat-conducting plate 50, the heat generated by the heating module 521 is transferred to the refrigerant radiator 30 more efficiently, improving the overall heat dissipation effect.

[0271] The heat-conducting plate 50 can be made of a material with good thermal conductivity, such as aluminum or copper.

[0272] As shown in Figure 41, in some embodiments, the heat dissipation substrate 301 is connected to the heat conduction plate 50. This arrangement can form a complete heat dissipation channel, ensuring that heat can be transferred from the heat-generating module 521 through the heat conduction plate 50 and the heat dissipation substrate 301 to the refrigerant in the cooling pipe 302, thus ensuring the continuity and effectiveness of the refrigerant heat dissipation process.

[0273] In order to achieve the connection between the control board 52, the housing 54 and the refrigerant heat dissipation component, as shown in Figures 31 and 32, the control board 52 is provided with a first through hole 522, and the heating module 521, the housing 54 or the support frame 542 is provided with a second through hole 60.

[0274] As shown in Figures 41 and 42, the first through hole 522 and the second through hole 60 are used for the first fastener 70 to pass through.

[0275] It is understandable that when multiple second vias 60 are provided, the multiple second vias 60 can be provided on at least one of the heating module 521, the housing 54, and the support frame 542.

[0276] Referring to Figure 32, in this embodiment, three second through holes 60 are provided, and the three through holes are opened on the box body 54 and the support frame 542.

[0277] The refrigerant heat dissipation component is connected to the support plate 53, as shown in Figure 33. The refrigerant heat dissipation component is provided with a first mounting hole 303.

[0278] As shown in Figures 39, 41 and 42, the first fastener 70 passes through the first through hole 522 and the second through hole 60 in sequence and is connected to the first mounting hole 303 so that the housing 54 is mounted on the support plate 53 and the refrigerant heat dissipation component abuts against the heating module 521 so as to use the cold energy of the refrigerant to dissipate heat from the heating module 521.

[0279] In the above configuration, the first fastener 70 is installed and removed from the front, so that when the control board 52 needs to be repaired or replaced, only the first fastener 70 needs to be removed, without the need to disassemble other parts, which greatly improves the convenience and efficiency of maintenance.

[0280] In related technologies, when installing the housing 54, the operator needs to manually align the above-mentioned mounting holes and through holes. The lack of a positioning structure makes positioning difficult and affects the assembly effect.

[0281] In order to solve the above-mentioned technical problems, in some embodiments of this application, the box 54 positions itself on the support plate 53 by a positioning structure.

[0282] Referring to Figure 34, in some embodiments, the positioning structure may include a first positioning part 534. The first positioning part 534 is disposed on the side of the support plate 53 opposite to the mounting cavity 17, and is used to provide a stable positioning base for the installation of the housing 54.

[0283] Referring to Figure 32, in some embodiments, the positioning structure may include a second positioning part 543, which is disposed on the housing 54 and is adapted to be connected with the first positioning part 534.

[0284] Referring to Figure 42, the first positioning part 534 and the second positioning part 543 are adapted to be connected so that the first through hole 522, the second through hole 60 and the first mounting hole 303 are aligned, providing accurate guidance for the subsequent installation of the first fastener 70 and ensuring the reliability of the connection.

[0285] When the first positioning part 534 and the second positioning part 543 are adapted and connected, the first fastener 70 passes through the first through hole 522 and the second through hole 60 in sequence and is connected and fixed to the first mounting hole 303 so that the box body 54 is installed on the support plate 53.

[0286] In this embodiment, the first fastener connection method is used to achieve a firm connection between the box 54 and the support plate 53, thereby ensuring the stability of the electronic control board 52 during use and preventing loosening or displacement.

[0287] Referring to Figures 41 and 42, further, through the cooperation of the first positioning part 534 and the second positioning part 543, the first through hole 522, the second through hole 60 and the first mounting hole 303 are automatically aligned during the installation of the box body 54, ensuring that the box body 54 can be accurately positioned and aligned during installation, ensuring that the relative position between the refrigerant heat dissipation component installed on the support plate 53 and the box body 54 is accurate, and improving installation efficiency.

[0288] In this embodiment, the first positioning part 534 can be one of a positioning pin and a positioning hole, and the second positioning part 543 can be the other of a positioning pin and a positioning hole. In this embodiment, the first positioning part 534 is a positioning pin, and the second positioning part 543 is a positioning hole.

[0289] For example, referring to Figures 33 and 42, three first mounting holes 303 are provided, and the number of first through holes 522 and second through holes 60 is the same as the number of first mounting holes 303. Of course, in some other embodiments, the number of first mounting holes 303 may be configured to be other.

[0290] It should be noted that the design of multiple first mounting holes 303 and their corresponding multiple through holes enhances the strength and stability of the connection. Furthermore, the number of first mounting holes 303 can be adjusted according to actual needs during the production of the electronic control components.

[0291] Referring to Figures 34 and 22, in some embodiments of this application, the top-mounted air conditioner outdoor unit may include a third positioning part 535, which is disposed on the side of the support plate 53 away from the mounting cavity, providing a positioning basis for the refrigerant heat dissipation component.

[0292] Referring to Figures 35 and 42, the top-mounted air conditioner outdoor unit may include a fourth positioning part 405, which is disposed on the refrigerant heat dissipation component and is used to cooperate with the third positioning part 535 to achieve precise positioning of the refrigerant heat dissipation component during installation.

[0293] The third positioning part 535 is adapted to the fourth positioning part 405 to position the refrigerant heat dissipation component on the support plate 53, ensuring that its relative position with the support plate 53 is accurate.

[0294] In this embodiment, the positioning accuracy and installation stability of the refrigerant heat dissipation component on the support plate 53 are improved by the cooperation of the third positioning part 535 and the fourth positioning part 405.

[0295] In this embodiment, the third positioning part 535 can be one of a positioning pin and a positioning hole, and the fourth positioning part 405 can be the other of a positioning pin and a positioning hole. In this embodiment, the third positioning part 535 is a positioning pin, and the fourth positioning part 405 is a positioning hole.

[0296] Referring to Figure 33, in this embodiment, the refrigerant heat dissipation component may include a refrigerant radiator 30, which has a through first mounting hole 303. The first mounting hole 303 is positioned to avoid the cooling pipe 302.

[0297] Referring to Figures 29 and 35, the refrigerant heat dissipation component may include an isolator 40, which is mounted on a support plate 53 and connects the refrigerant radiator 30 and the support plate 53. A fourth positioning part 405 is provided on the isolator 40.

[0298] In this embodiment, by setting the isolation component 40 to block the heat conduction between the support plate 53 and the refrigerant radiator, the risk of condensation on the support plate 53 is reduced. At the same time, the isolation component 40 can prevent the condensation on the support plate 53 from flowing to the refrigerant radiator, effectively preventing the condensation from contacting the control board 52 through the heating module 521, thus ensuring the stable operation of the control board 52.

[0299] Furthermore, referring to Figures 34 and 35, the isolation member 40 and the support plate 53 are respectively provided with a third through hole 402 and a second mounting hole 538.

[0300] Referring to Figures 24 and 42, the third positioning part 535 is adapted to the fourth positioning part 405 so that the third through hole 402 is aligned with the second mounting hole 538, providing accurate guidance for the subsequent installation of the second fastener 80 and ensuring the reliability of the connection.

[0301] When the third positioning part 535 and the fourth positioning part 405 are adapted and connected, the second fastener 80 passes through the third through hole 402 and is connected to the second mounting hole 538, so that the isolation member 40 can be detachably connected to the support plate 53.

[0302] In this embodiment, the detachable connection method facilitates the installation and removal of the isolation component 40, making maintenance and replacement convenient. At the same time, it ensures the connection stability between the isolation component 40 and the support plate 53.

[0303] Furthermore, by utilizing the cooperation between the third positioning part 535 and the fourth positioning part 405, the third through hole 402 and the second mounting hole 538 are aligned at one time, thereby improving the assembly efficiency of the isolation member 40.

[0304] Referring to Figures 36 and 29, a first snap-fit ​​part 404 is provided on the mounting position 403, and a second snap-fit ​​part 304 is provided on the refrigerant radiator 30. The first snap-fit ​​part 404 and the second snap-fit ​​part 304 are adapted to be connected to position the refrigerant radiator 30 relative to the support plate 53.

[0305] The cooperation between the first snap-fit ​​part 404 and the second snap-fit ​​part 304 allows the refrigerant radiator to be positioned and snapped onto the mounting position 403, accurately positioning the position of the refrigerant radiator relative to the support plate 53, that is, accurately positioning the position of the first mounting hole 303 on it relative to the support plate 53. This provides a basis for subsequent alignment with the first through hole 522 and the second through hole 60, facilitating the installation of the refrigerant radiator and the subsequent housing 54, and improving assembly efficiency.

[0306] In this embodiment, the first engaging portion 404 can be either a positioning pin or a positioning hole, and the second engaging portion 304 can be the other of the positioning pin and the positioning hole. In this embodiment, the first engaging portion 404 is a positioning pin, and the second engaging portion 304 is a positioning hole.

[0307] In related technologies, refrigerant heat dissipation components include cooling pipes 302, which are used for refrigerant circulation. The inlet and outlet ends 3021 of the cooling pipes 302 need to be welded to the refrigerant piping of the outdoor unit. However, the welding space is difficult to guarantee, and it is impossible to effectively prevent other materials from being burned during the welding process.

[0308] To address this technical problem, in this embodiment, the support plate 53 is divided into zones, with a reasonable plan for the electrical control zone and the welding zone. The installation sequence of different components is also specified to ensure the convenience and safety of the welding operation and to prevent damage to the components on the electrical control board 52.

[0309] Specifically, referring to Figures 37 and 38, the support plate 53 may include a first support plate 536, which is connected to the housing for mounting the box 54 and the refrigerant heat dissipation components.

[0310] As shown in Figure 34, the first positioning part 534 and the third positioning part 535 are both disposed on the first support plate 536 to provide a positioning basis for the installation of the box 54 and the refrigerant heat dissipation component.

[0311] In this embodiment, the first support plate 536 provides a mounting base for the housing 54 and the refrigerant heat dissipation component. The housing 54 and the refrigerant heat dissipation component are mounted on the first support plate 536, making the area where the first support plate 536 is located an electronically controlled area.

[0312] Referring to Figure 34, the support plate 53 may further include a receiving portion 533, which is formed on the first support plate 536 and extends to the bottom end of the first support plate 536.

[0313] The receiving portion 533 is recessed relative to the first support plate 536 and the second support plate 537 towards the mounting cavity to accommodate the refrigerant heat dissipation component. The inlet and outlet ends 3021 of the cooling pipe 302 extend to the bottom of the first support plate 536 and are welded to the refrigerant pipeline.

[0314] In this embodiment, the accommodating part 533 provides a space for the refrigerant heat dissipation component, making its installation more compact. At the same time, the recessed design of the accommodating part 533 facilitates the connection and welding of the cooling pipe 302.

[0315] Referring to Figures 37 and 38, the support plate 53 may further include a second support plate 537, which is located below the first support plate 536 and the box body 54.

[0316] The second support plate 537 is connected to the housing to cover the welding point of the cooling pipe 302, so that the welding point of the cooling pipe 302 is located inside the mounting cavity.

[0317] In this embodiment, referring to Figure 39, a first support plate 536 and a second support plate 537 are separately configured to divide the support plate 53 into regions. The area on the first support plate 536 is the electrical control area, and the area on the second support plate 537 is the welding area for the cooling pipe 302. The cooling pipe 302 is welded in the welding area, and after the welding is completed, the second support plate 537 is installed to cover the welding point, ensuring sufficient welding space for the cooling pipe 302 and avoiding burning other materials on the electrical control box.

[0318] Specifically, referring to Figure 40, during the assembly of the electrical control box, the first support plate 536 can be installed first, followed by the installation of the refrigerant heat dissipation components on the first support plate 536, and the cooling pipe 302 can be welded. At this time, the box body 54 with the electrical control board 52 is not installed, and the inlet and outlet ports 3021 of the cooling pipe 302 are welded within the welding area, effectively preventing burns to the electrical control board 52 and the box body 54. After the inlet and outlet ports 3021 of the cooling pipe 302 are welded, the box body 54 with the electrical control board 52 is installed. After the box body 54 is installed, the second support plate 537 is finally installed to cover the welding points, thereby protecting the cooling pipe 302 and the weld points.

[0319] Furthermore, referring to Figures 40 and 23, the base plate 51 of the electrical control box is connected to the second support plate 537. The cover 55 is connected to the base plate 51, the first support plate 536 is connected to the second support plate 537, and they enclose to form a receiving cavity 58 with an open top, which provides a reliable installation and working environment for the electrical control board 52.

[0320] In this embodiment, after the second support plate 537 is installed, the base plate 51 and the cover 55 are further installed to achieve the overall assembly of the electrical control box, thereby improving the assembly efficiency of the electrical control box. Referring again to Figure 40, the mounting plate 592 is installed on the second support plate 537.

[0321] In some embodiments of this application, referring to Figures 41 and 42, a heat-conducting plate 50 is sandwiched between the refrigerant heat dissipation component and the heat-generating module 521. The heat-conducting plate 50 has a fourth through hole 501 for a first fastener 70 to pass through. The first fastener 70 passes sequentially through the first through hole 522 and the second through hole 60.

[0322] In this embodiment, by sandwiching a heat-conducting plate 50 between the refrigerant heat dissipation component and the heating module 521, the efficiency of heat transfer can be improved, so that the heat generated by the heating module 521 can be more effectively transferred to the refrigerant heat dissipation component, and then the heat dissipation can be achieved through the cooling capacity of the refrigerant, thereby improving the heat dissipation effect.

[0323] In some other embodiments, the control box may include a first support plate 536 on which a refrigerant heat dissipation component and a box body 54 are mounted, and the inlet and outlet ends 3021 of the cooling pipe 302 in the refrigerant heat dissipation component extend to the bottom of the first support plate 536.

[0324] The electrical control box may include a second support plate 537 located below the first support plate 536. The first support plate 536 and the second support plate 537 are joined together to form a support plate 53 for separating the receiving cavity and the mounting cavity. The second support plate 537 is connected to the housing to cover the inlet and outlet ends 3021 of the cooling pipe 302.

[0325] In this embodiment, a support plate 53 is formed by splicing a first support plate 536 and a second support plate 537, which are separately configured, to separate the mounting cavity and the receiving cavity. The housing 54, on which the electronic control board 52 is mounted, is connected to the first support plate 536, and the inlet and outlet pipes of the cooling pipe 302 are extended to the area of ​​the second support plate 537 below the first support plate 536. This makes the area on the first support plate 536 the electronic control area, and the area on the second support plate 537 the welding area of ​​the cooling pipe 302, ensuring the convenience and safety of the welding operation and preventing damage to the components on the electronic control board 52.

[0326] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0327] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A top-discharge outdoor unit for an air conditioner, characterized in that, include: The housing has an internal mounting cavity, and the top and side of the housing are respectively provided with an outdoor air outlet and an outdoor air inlet communicating with the mounting cavity. An outdoor fan is located inside the mounting cavity and near the outdoor air outlet; an outdoor heat exchanger is located inside the mounting cavity and near the outdoor air inlet. The compressor is located within the mounting cavity and below the outdoor fan. An electrical control box, connected to the housing and located outside the mounting cavity, defines a receiving cavity within the electrical control box. The electrical control box includes: a support plate connected to the housing to separate the receiving cavity from the mounting cavity; a box body disposed within the receiving cavity, the box body having a through opening; an electrical control board mounted on the box body, the electrical control board having a first through hole for a first fastener to pass through; a heating module mounted on the side of the electrical control board facing the support plate via a support frame, the heating module passing through the opening; a second through hole on the heating module, the box body, or the support frame; and a refrigerant heat dissipation component connected to the support plate, the refrigerant heat dissipation component... The component abuts against the heating module to dissipate heat from the heating module using the cooling capacity of the refrigerant. The refrigerant heat dissipation component is provided with a first mounting hole. A positioning structure is included, comprising: a first positioning part disposed on the side of the support plate opposite to the mounting cavity; and a second positioning part disposed on the housing. The first positioning part and the second positioning part are adapted to each other so that the first through hole and the second through hole are aligned with the first mounting hole. A first fastener passes through the first through hole and the second through hole in sequence and is then connected and fixed to the first mounting hole, so that the housing is mounted on the support plate and the heating module abuts against the refrigerant heat dissipation component.

2. The top-discharge outdoor unit of an air conditioner according to claim 1, characterized in that, Also includes: The third positioning part is provided on the side of the support plate opposite to the mounting cavity; The fourth positioning part is disposed on the refrigerant heat dissipation component, and the third positioning part is adapted to the fourth positioning part to position the refrigerant heat dissipation component on the support plate.

3. The top-discharge outdoor unit of an air conditioner according to claim 2, characterized in that, The refrigerant heat dissipation component includes: a refrigerant radiator, which abuts against the heat-generating module, and the refrigerant radiator is provided with the first mounting hole; an isolator, which is connected between the refrigerant radiator and the support plate to block heat conduction between the refrigerant radiator and the support plate, and the fourth positioning part is provided on the isolator.

4. The top-discharge outdoor unit of an air conditioner according to claim 3, characterized in that, The isolation member and the support plate are respectively provided with a third through hole and a second mounting hole. The third positioning part and the fourth positioning part are adapted to be connected so that the third through hole and the second mounting hole are aligned. The second fastener passes through the third through hole and is connected to the second mounting hole so that the isolation member can be detachably connected to the support plate.

5. The top-discharge outdoor unit of an air conditioner according to claim 3 or 4, characterized in that, The isolation member has a mounting position on the side opposite to the support plate. The mounting position has a first snap-fit ​​part, and the refrigerant radiator has a second snap-fit ​​part. The first snap-fit ​​part and the second snap-fit ​​part are adapted to be connected so that the refrigerant radiator is positioned and snapped into the mounting position.

6. The top-discharge outdoor unit of an air conditioner according to claim 1, characterized in that, The support plate includes: a first support plate connected to the housing for mounting the box body and the refrigerant heat dissipation component, the first support plate having a first positioning portion; a receiving portion formed on the first support plate and extending to the bottom end of the first support plate, the receiving portion being recessed relative to the first support plate towards the mounting cavity for accommodating the refrigerant heat dissipation component, the refrigerant heat dissipation component having a cooling pipe for supplying refrigerant flow, the inlet and outlet ends of the cooling pipe extending below the first support plate and welded to the refrigerant pipeline; and a second support plate located below the first support plate and the box body, the second support plate being connected to the housing to cover the welding points of the cooling pipe.

7. The top-discharge outdoor unit of an air conditioner according to claim 6, characterized in that, The electrical control box further includes: a base plate connected to the second support plate to form the bottom wall of the receiving cavity; and a cover connected to the base plate, the first support plate, and the second support plate to enclose and form the receiving cavity with an open top.

8. The top-discharge outdoor unit of an air conditioner according to claim 7, characterized in that, The base plate is provided with a ventilation inlet that communicates with the receiving cavity, and the support plate is provided with a ventilation outlet that communicates with the mounting cavity and the receiving cavity. The ventilation outlet is located above the electronic control board.

9. The top-discharge outdoor unit of an air conditioner according to claim 1, characterized in that, A heat-conducting plate is sandwiched between the refrigerant heat dissipation component and the heating module.

10. A top-discharge outdoor unit for an air conditioner, characterized in that, include: A housing, which defines an installation cavity, includes an outdoor air outlet and an outdoor air inlet communicating with the installation cavity. The outdoor air outlet is located at the top of the housing, and the outdoor air inlet is located on the side wall of the housing. An outdoor fan is located in the installation cavity and near the outdoor air outlet, and the axis of the outdoor fan extends along the height direction of the housing. An outdoor heat exchanger is located inside the mounting cavity, and the outdoor heat exchanger is positioned close to the outdoor air inlet. A compressor is located inside the mounting cavity, below the outdoor fan; an electronic control board has a heating module on its side and a first through hole; a refrigerant heat dissipation component abuts against the heating module and has a cooling pipe for circulating refrigerant, using the cooling capacity of the refrigerant to dissipate heat from the heating module. An electrical control box is connected to the housing and located outside the mounting cavity. The electrical control box defines a receiving cavity. The electrical control box includes: a box body disposed in the receiving cavity for mounting the electrical control board, and the box body is provided with an opening for the heating module to pass through. The first support plate is connected to the housing and is used to install the refrigerant heat dissipation component. The housing is positioned on the first support plate by a positioning structure and is fixedly connected to the refrigerant heat dissipation component by a first fastener. The inlet and outlet ends of the cooling pipe extend to the bottom of the first support plate and are welded to the refrigerant pipeline. The second support plate is connected to the housing and located below the first support plate to cover the inlet and outlet ends. The second support plate and the first support plate are spliced ​​together to form a support plate, which is used to separate the receiving cavity from the mounting cavity.

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