Air conditioner

Abstract

The application relates to an air conditioner. A second front panel is provided with a second area, and the second area is provided with a plurality of second air inlets. The distance between the second area and the bottom wall of the shell is greater than the distance between the first area and the bottom wall of the shell. When the outdoor fan is working, the condensed water raised loses the kinetic energy of upward splashing after being blocked by the first air inlets. Even if the condensed water enters the air flow interval between the first shell and the second shell, the condensed water will flow out of the first shell along the inner wall of the first shell under the action of gravity, so that the condensed water can be effectively prevented from entering the second shell with the outdoor air, and the condensed water can be effectively prevented from contacting the controller located in the second shell. Therefore, under the premise that the position of the first area is lower than the position of the second area, a larger number of air inlets can be arranged in the first area and the second area respectively, so that the ventilation and heat exchange effect of the second protective shell and the controller in the second protective shell can be improved.

Description

Technical Field

[0001] This application relates to the field of air treatment technology, and in particular to an air conditioner. Background Technology

[0002] In window air conditioners (also known as window units) in related technologies, the electronic control components are placed between the indoor unit and the outdoor unit. The electronic control components are located at the air inlet of the outdoor unit. The airflow generated at the air inlet when the outdoor unit is working can be used to dissipate heat from the electronic control components, reduce the temperature of the heat-generating components on the control board, and ensure the normal operation of the control board.

[0003] To improve the heat exchange efficiency of the outdoor heat exchanger, the outdoor fan blows air towards the heat exchanger and simultaneously atomizes the condensate stored in the chassis, thereby reducing the ambient temperature and the temperature of the outdoor heat exchanger. However, the atomized condensate can also hit the electrical control box of the control components. If the condensate enters the control box, it can contact and cause the control board inside to malfunction. When the control box is designed with a sealed, waterproof structure, its ventilation and heat dissipation efficiency is reduced, thus decreasing the performance of the air conditioner. Utility Model Content

[0004] Therefore, it is necessary to provide an air conditioner that can improve ventilation and heat dissipation while also being waterproof, to address the problem of not being able to simultaneously achieve both.

[0005] This application provides an air conditioner, including:

[0006] An outer shell that forms an internal receiving space, the internal receiving space being divided into an interior cavity and an exterior cavity;

[0007] An outdoor fan, wherein the outdoor fan is disposed within the outdoor cavity;

[0008] An electrical control assembly, wherein the electrical control assembly is disposed within the external cavity; the electrical control assembly includes:

[0009] Controller; and

[0010] Protective shell, the protective shell comprising:

[0011] A first protective shell, the first protective shell comprising:

[0012] A first front panel, facing away from the outdoor fan, is provided with a first area, and the first area is provided with a plurality of first air inlets;

[0013] A first back panel is provided, which is spaced apart from the first front panel, and the first back panel is provided with a first air vent.

[0014] A second protective shell is disposed inside the first protective shell, and the second protective shell and the first protective shell are spaced apart to form an airflow gap; the controller is disposed inside the second protective shell; the second protective shell includes:

[0015] The second front panel faces away from the outdoor fan. The second front panel is spaced apart from the first front panel. The second front panel has a second area with multiple second air inlets. The distance between the bottom edge of the second area and the bottom wall of the outer casing is greater than the distance between the top edge of the first area and the bottom wall of the outer casing.

[0016] The second back panel is disposed at a distance from the first back panel, and the second back panel is provided with a second air outlet.

[0017] In one embodiment, the first air outlet and the second air outlet are staggered along the thickness direction of the first back panel.

[0018] In one embodiment, the outdoor fan includes:

[0019] Drive motor;

[0020] Fan blades, and the drive motor is connected to the fan blades;

[0021] A support base, which is connected to the outer casing and also connected to the drive motor;

[0022] An air guide shell, the air guide shell being arranged circumferentially around the fan blades; and

[0023] A connecting arm, which connects the support base and the air guide shell;

[0024] The electronic control component is located above the support base. Both the first back panel and the second back panel are configured as curved plates, and the upper part of the first back panel and the upper part of the second back panel both protrude in a direction close to the air guide shell.

[0025] In one embodiment, the first back panel includes:

[0026] First main body panel;

[0027] A first horizontal plate, one end of which is connected to the top of the first main body plate at an angle; and

[0028] The first vertical plate has its bottom end connected to the other end of the first horizontal plate at an angle.

[0029] The second back panel includes:

[0030] Second main body panel;

[0031] The second horizontal plate, one end of which is connected to the top of the second main plate at an angle; and

[0032] The second vertical plate has its bottom end connected to the other end of the second horizontal plate at an angle.

[0033] In one embodiment, the first air outlet includes a plurality of first air outlets and a plurality of second air outlets, the plurality of first air outlets being disposed at one end of the first horizontal plate away from the first main body plate, and the plurality of second air outlets being disposed on the first vertical plate;

[0034] The second vent includes a plurality of third vent holes and a plurality of fourth vent holes. The third vent holes are disposed on the second main body plate, and the fourth vent holes are disposed on the second vertical plate. The distance between the fourth vent hole and the bottom wall of the outer shell is greater than the distance between the second vent hole and the bottom wall of the outer shell.

[0035] In one embodiment, the first protective shell further includes:

[0036] A first base plate, one end of which is connected to the first front panel, and the other end of which is connected to the first back panel. The first base plate is provided with a third air outlet.

[0037] The second protective shell also includes:

[0038] The second base plate has one end connected to the second front panel and the other end connected to the second back panel. The first base plate and the second base plate are spaced apart. The second base plate is provided with a fourth air outlet.

[0039] In one embodiment, the third air outlet and the fourth air outlet are staggered along the thickness direction of the first base plate; and / or,

[0040] The third air outlet includes a plurality of fifth air outlets; the fourth air outlet includes a plurality of sixth air outlets; and / or,

[0041] At least one of the first base plate and the second base plate is provided with a first protrusion that protrudes toward each other, so that the first base plate and the second base plate are spaced apart.

[0042] In one embodiment, the first protective shell further includes:

[0043] Two first side panels, each first side panel having multiple third air inlets, one side of the first front panel being connected to one side of the first back panel via one of the first side panels, and the other side of the first front panel being connected to the other side of the first back panel via the other first side panel;

[0044] The second protective shell also includes:

[0045] Two second side panels, one side of the second front panel is connected to one side of the second back panel through one of the second side panels, and the other side of the second front panel is connected to the other side of the second back panel through the other second side panel; the second side panels are arranged at intervals relative to the first side panel, and the second side panels are provided with a plurality of fourth air inlets.

[0046] In one embodiment, the first side panel has a third region, and a plurality of third air inlets are disposed in the third region; the second side panel has a fourth region, and a plurality of fourth air inlets are disposed in the fourth region; the distance between the top edge of the third region and the bottom wall of the housing is less than the distance between the bottom edge of the fourth region and the bottom wall of the housing; and / or,

[0047] At least one of the first side panel and the second side panel is provided with a second protrusion that protrudes outward from each other.

[0048] In one embodiment, the first protective shell is made of a metal material, and the second protective shell is made of a metal material.

[0049] In the aforementioned air conditioner, when the outdoor fan is operating, outdoor air enters the airflow gap through the first air inlet and then enters the second protective housing through the second air inlet. It is then discharged outwards through the first and second air outlets, thereby achieving ventilation and heat exchange for the second protective housing and the internal controller, effectively reducing the controller's temperature. Furthermore, because the distance between the second region and the bottom wall of the outer housing is greater than the distance between the first region and the bottom wall of the outer housing, any condensate water that is splashed upwards loses its kinetic energy after being blocked by the first air inlet. Even if it enters the airflow gap between the first and second housings, it will flow downwards along the inner wall of the first housing under gravity, effectively preventing condensate water from entering the second housing with the outdoor air, and consequently preventing condensate water from contacting the controller located inside the second housing. Therefore, provided that the position of the first region is lower than that of the second region, a larger number of air inlets can be provided in both the first and second regions to improve the ventilation and heat exchange effect of the second protective housing and the controller inside. Attached Figure Description

[0050] Figure 1This is a structural diagram of an air conditioner according to an embodiment of this application.

[0051] Figure 2 for Figure 1 The diagram shows another view of the air conditioner's structure.

[0052] Figure 3 for Figure 2 Cross-sectional view of the structure at point KK.

[0053] Figure 4 for Figure 3 The diagram shown conceals the compressor and the first throttling device.

[0054] Figure 5 for Figure 1 The diagram shows the structure of the electronic control components in the air conditioner.

[0055] Figure 6 for Figure 5 Another view of the structure of the electronic control component is shown.

[0056] Figure 7 for Figure 6 The diagram shows a cross-sectional view of the electronic control components.

[0057] Figure 8 for Figure 7 Enlarged structural diagram at point A.

[0058] Figure 9 for Figure 6 The diagram shown is an exploded view of the electronic control components.

[0059] Figure 10 The diagram shows the structure of the electronic control component shown in Figure 6 after the protective cover has been removed.

[0060] Figure 11 for Figure 10 Another view of the structure of the electronic control component is shown.

[0061] Figure 12 for Figure 9 The diagram shows the structure of the first front panel, the first back panel, the second front panel, and the second back panel.

[0062] Figure 13 for Figure 12 Another structural diagram of the structure shown.

[0063] Figure 14 for Figure 9 The diagram shows the structure of one set of first and second side panels.

[0064] Figure 15 for Figure 9 The diagram shows the structure of another set of first and second side panels.

[0065] Figure 16 This is a structural diagram showing the interconnection between the controller and the heat dissipation structure of an electronic control component according to an embodiment of this application.

[0066] Figure 17 This is a structural diagram of a controller and a heat dissipation structure separated according to an embodiment of this application.

[0067] Figure 18 This is a simplified structural diagram of an air conditioner according to an embodiment of this application.

[0068] Figure label:

[0069] 10. Compressor; 20. Outdoor heat exchanger; 30. First throttling device; 40. Indoor heat exchanger; 70. Outdoor fan; 74. Support base; 75. Air guide shell; 76. Connecting arm; 80. Outer shell; 92. Indoor fan; 94. Electrical control components; 941. Controller; 942. Protective shell; 943. First protective shell; 9431. First front panel; 94311. First air inlet; 9432. First back panel; 94321. First main body plate; 94322. First horizontal plate; 94323. First vertical plate; 94324. First air outlet; 94325. Second air outlet; 9433. First bottom plate; 94331. Fifth air outlet ; 9434, First side panel; 94341, Third air inlet; 944, Second protective shell; 9441, Second front panel; 94411, Second air inlet; 9442, Second back panel; 94421, Second main body plate; 94422, Second horizontal plate; 94423, Second vertical plate; 94424, Third air outlet; 94425, Fourth air outlet; 9443, Second bottom plate; 94431, Sixth air outlet; 9444, Second side panel; 94441, Fourth air inlet; 945, First protrusion; 946, Second protrusion; 947, Protective cover; 95, Heat dissipation mechanism; 951, Heat dissipation body; 96, Second throttling device. Detailed Implementation

[0070] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0071] It should be noted that, for ease of description and understanding, the terms "front," "rear," "up," "down," "left," and "right" in this embodiment refer to the installation state of the air conditioner during normal use. The direction from which the air outlet of the indoor heat exchanger faces the user is considered "front," and the direction away from the user is considered "rear." The vertical direction is the up-down direction, and the direction perpendicular to both the front-back and vertical directions is the left-right direction. For example... Figures 1 to 3 As shown.

[0072] This embodiment provides an air conditioner, which includes a refrigeration system for exchanging heat with indoor air to meet cooling or heating needs.

[0073] The refrigeration system includes a compressor, a condenser, a first throttling device, and an evaporator. In this application, the air conditioner performs the refrigeration cycle by using the compressor, condenser, first throttling device, and evaporator.

[0074] The compressor compresses refrigerant gas at a low temperature and low pressure and discharges the compressed, high-temperature, high-pressure refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

[0075] The first throttling device is, for example, an expansion valve, which causes the high-temperature, high-pressure liquid refrigerant condensed in the condenser to expand into a low-pressure liquid refrigerant. The evaporator evaporates the refrigerant that has expanded in the expansion valve and returns the low-temperature, low-pressure refrigerant gas to the compressor.

[0076] An evaporator achieves a cooling effect by exchanging heat with the material being cooled using the latent heat of refrigerant evaporation. Throughout the cycle, the air conditioner regulates the temperature of the indoor space.

[0077] The outdoor unit of an air conditioner refers to the part that participates in the refrigeration cycle, including the compressor and the outdoor heat exchanger. The indoor unit of an air conditioner includes the indoor heat exchanger, and the expansion valve can be provided in either the indoor or outdoor unit.

[0078] The indoor and outdoor heat exchangers function as either condensers or evaporators. When the indoor heat exchanger is used as a condenser, the air conditioner functions as a heater in heating mode; when the indoor heat exchanger is used as an evaporator, the air conditioner functions as a cooler in cooling mode.

[0079] An air conditioner consists of an indoor unit and an outdoor unit, which can be configured as an integrated unit or a split unit.

[0080] The air conditioner includes, but is not limited to, integrated units and split units. An integrated unit refers to an air conditioner where the outdoor and indoor units are integrated into one unit. A split unit refers to an air conditioner where the outdoor and indoor units are separate units. For example, the air conditioner in this embodiment will be described using an integrated unit as a specific example.

[0081] The complete unit can be, for example, a window unit, a portable unit, a rooftop unit, or a kitchen air conditioner.

[0082] The refrigerant circulation loop in this application allows the refrigerant to circulate within a circuit consisting of a compressor, condenser, electronic expansion valve, and evaporator. One of the condensers and evaporator is an outdoor heat exchanger, and the other is an indoor heat exchanger. The indoor heat exchanger exchanges heat with the air inside the indoor unit, and the outdoor heat exchanger exchanges heat with the air inside the outdoor unit, thereby fulfilling the cooling or heating requirements of the air conditioner.

[0083] The indoor unit also includes an indoor fan, which is located near the return air vent or air outlet of the indoor heat exchanger. It is used to deliver the heat-exchanged air into the room. The indoor fan has multiple speed settings to change the airflow speed at the air outlet.

[0084] An air guide plate is installed at the air outlet. By changing its relative rotation angle with the air outlet, the air guide plate adjusts the direction of the airflow through the air outlet, thereby affecting the stratification of indoor air temperature.

[0085] The outdoor unit also includes an outdoor fan, which is located on one side of the outdoor heat exchanger so that outdoor air can be delivered to the outdoor heat exchanger for heat exchange.

[0086] In the embodiments shown in this application, the air conditioner also includes a controller, which is a device that can generate operation control signals according to instruction operation codes and timing signals to instruct the air conditioner to execute control commands. For example, in response to a power-on or power-off command issued by a user, the controller can perform an operation related to the object selected by the power-on or power-off command.

[0087] To improve ventilation while maintaining waterproofing, the electrical control box in related technologies is designed with a double-shell structure, with openings in both the inner and outer shells, and the opening positions are staggered. However, considering the need to prevent condensate stirred up by the outdoor fan from entering the electrical control box, the number and area of ​​openings in the double-shell structure are limited, resulting in poor ventilation.

[0088] For the reasons mentioned above, this application provides an air conditioner that improves ventilation and heat dissipation and has good waterproof performance.

[0089] The following is for reference. Figures 1-18This application describes an air conditioner according to an embodiment of the present application.

[0090] Please see Figures 1 to 3 This application provides an air conditioner, specifically a window air conditioner. The air conditioner includes a housing 80. The housing 80 forms an internal accommodating space, which is divided into an indoor cavity and an outdoor cavity.

[0091] The air conditioner also includes an outdoor unit. The outdoor unit is located inside the outdoor cavity. The outdoor unit includes an outdoor heat exchanger 20 and an outdoor fan 70. The outdoor fan 70 is used to drive outdoor air through the outdoor heat exchanger 20 so that the outdoor heat exchanger 20 exchanges heat with the outdoor air.

[0092] The air conditioner also includes an indoor unit. The indoor unit is located inside the indoor cavity. The indoor unit and the outdoor unit are spaced apart. The indoor unit includes an indoor heat exchanger 40 and an indoor fan 92. The indoor fan 92 is used to drive indoor air through the indoor heat exchanger 40 so that the indoor heat exchanger 40 and the indoor air can exchange heat.

[0093] Please see Figure 3 , Figure 4 and Figure 18 The outdoor unit also includes a compressor 10 and a first throttling device 30. Both the outdoor heat exchanger 20 and the indoor heat exchanger 40 are connected to the compressor 10, and the first throttling device 30 is connected between the outdoor heat exchanger 20 and the indoor heat exchanger 40.

[0094] Please see Figure 3 and Figure 4 For example, the air conditioner also includes an electronic control component 94. The electronic control component 94 is used to implement the electronic control functions of the air conditioner and is disposed within the outdoor cavity. Specifically, the electronic control component 94 is located on the air inlet side of the outdoor fan 70. The air inlet side of the outdoor fan 70 is the side of the outdoor fan 70 that faces away from the outdoor heat exchanger 20.

[0095] Please see Figure 3 , Figure 16 and Figure 17 Specifically, the electrical control component 94 includes a controller 941. The outdoor fan 70, the indoor fan 92, and the compressor 10 are all electrically connected to the controller 941. Under the control of the controller 941, various operations such as switching on and off, adjusting the fan speed, and adjusting the operating time can be realized.

[0096] Please see Figures 5 to 7 , Figure 16 and Figure 17 The electronic control assembly 94 also includes a protective housing 942. The controller 941 is housed within the protective housing 942, which protects the controller 941 from damage.

[0097] Please see Figure 4 , Figure 7 , Figure 9 , Figure 11 and Figure 12 In one embodiment, the protective shell 942 includes a first protective shell 943 and a second protective shell 944. The first protective shell 943 includes a first front panel 9431 and a first back panel 9432. The first front panel 9431 faces away from the outdoor fan 70 and has a first region with a plurality of first air inlets 94311. The first back panel 9432 is disposed opposite to the first front panel 9431 and has a first air outlet on the back side.

[0098] In one embodiment, the second protective shell 944 is disposed inside the first protective shell 943, and the second protective shell 944 and the first protective shell 943 are spaced apart to form an airflow gap, and the controller 941 is disposed inside the second protective shell 944.

[0099] The second protective shell 944 includes a second front panel 9441 and a second back panel 9442. The second front panel faces away from the outdoor fan 70, and the second front panel 9441 is spaced apart from the first front panel 9431. The second front panel 9441 has a second region, and the second region has multiple second air inlets 94411. The distance between the bottom edge of the second region and the bottom wall of the outer shell 80 is greater than the distance between the top edge of the first region and the bottom wall of the outer shell 80. That is, the second region is positioned higher than the first region, so that the opening position of the second air inlets 94411 is higher than the opening position of the first air inlets 94311.

[0100] The second back panel 9442 is disposed at a distance from the first back panel 9432, and the second back panel 9442 is provided with a second air outlet.

[0101] In the aforementioned air conditioner, when the outdoor fan 70 is operating, outdoor air enters the airflow interval through the first air inlet 94311 and can enter the second protective shell 944 through the second air inlet 94411, and is discharged outward through the first and second air outlets. This achieves ventilation and heat exchange for the second protective shell 944 and the controller 941 inside, effectively reducing the temperature of the controller 941. Furthermore, since the distance between the second region and the bottom wall of the outer shell 80 is greater than the distance between the first region and the bottom wall of the outer shell 80, the condensate water that is splashed up loses its upward splashing kinetic energy after being blocked by the first air inlet 94311. Even if it enters the airflow interval between the first and second outer shells 80, it will flow downward along the inner wall of the first outer shell 80 under the action of gravity. Therefore, it can effectively prevent condensate water from entering the second outer shell 80 with the outdoor air, and thus effectively prevent condensate water from contacting the controller 941 located inside the second outer shell 80. Therefore, provided that the position of the first region is lower than that of the second region, a greater number of air inlets can be provided in both the first and second regions to improve the ventilation and heat exchange effect of the second protective shell 944 and the controller 941 inside it.

[0102] In this embodiment, the first back panel 9432 is closer to the outdoor fan 70 than the first front panel 9431. Therefore, more condensate water stirred up by the outdoor fan 70 splashes onto the first back panel 9432. Based on this, the first and second air outlets in this embodiment are staggered along the thickness direction of the first back panel 9432. With this arrangement, condensate water stirred up by the outdoor fan 70 during operation is blocked by the first air outlet. Furthermore, due to the staggered arrangement of the first and second air outlets, condensate water entering the second housing 80 through the first air outlet will continue to be blocked by the second housing 80, effectively preventing condensate water from entering the second housing 80. In addition, when the outdoor fan 70 is operating, a negative pressure is generated at the first and second air outlets, causing outdoor air to enter through the first and second air inlets 94311 and 94411 and exit through the second and first air outlets.

[0103] For example, the first air intake 94311 in the first region is arranged in one or more rows along the vertical direction, so that the air intake effect is uniform at all positions in the first region. For example, the first air intake 94311 is set to one row, two rows, three rows or more, and the number of first air intake 94311 in each row is, for example, 5, 10, 20, 30 or more.

[0104] For example, the second air intakes 94411 in the second region are arranged in one or more rows along the vertical direction, so that the air intake effect is uniform at all positions in the second region. For example, the second air intakes 94411 are set in one row, two rows, three rows or more, and the number of second air intakes 94411 in each row is, for example, 5, 10, 20, 30 or more.

[0105] Please see Figure 3 and Figure 4 For example, the outdoor fan 70 includes a drive motor and fan blades. The drive motor is connected to the fan blades and drives the fan blades to rotate. To facilitate the removal of condensate from the water storage tank of the outer casing 80, the outdoor fan 70 may also include a water-spraying ring. The water-spraying ring is arranged circumferentially around the fan blades, with its bottom extending into the water storage tank of the outer casing 80. When the water-spraying ring rotates, it splashes the condensate. Thus, when the outdoor fan 70 is working, it not only allows outdoor air to flow through the outdoor heat exchanger 20, but also uses the high-speed rotating water-spraying ring to carry away the condensate in the water storage tank. The condensate splashed by the water-spraying ring evaporates, further reducing its temperature, thereby lowering the temperature of the outdoor heat exchanger.

[0106] For example, the outdoor fan 70 also includes a support base 74, a connecting arm 76, and an air guide shell 75. The support base 74 is fixed inside and connected to the outer casing 80, and the connecting arm 76 connects the support base 74 and the air guide shell 75. The support base 74 is connected to the drive motor and provides stable support for the drive motor. The air guide shell 75 is connected to the support base 74 and is supported by the support base 74. The air guide shell 75 has an annular structure and is arranged around the fan blades, which helps to direct the airflow from the fan blades towards the outdoor heat exchanger 20. Outdoor air is drawn in by the outdoor fan 70, enters the air guide shell 75 through the gap between two adjacent connecting arms 76, and is blown towards the outdoor heat exchanger 20 under the guidance of the air guide shell 75. A water-applying ring extends to the outside of the air guide shell 75 to facilitate insertion into the water storage tank. That is, the water-applying ring is closer to the outdoor heat exchanger 20 than the air guide shell 75.

[0107] The number of connecting arms 76 includes, but is not limited to, two, three, four, or more. One end of the connecting arm 76 is connected to the support base 74, and the other end is connected to the air guide shell 75. Since the inner diameter of the outer circumference of the air guide shell 75 is larger than the outer diameter of the cross-sectional profile of the support base 74 along its axial direction, the distance between the connecting arm 76 and the central axis of the drive motor increases along the air outlet direction of the outdoor fan 70, thereby achieving the connection between the support base 74 and the air guide shell 75.

[0108] For example, the electronic control component 94 is located above the support base 74. Specifically, the projection of the electronic control component 94 in the vertical direction at least partially overlaps or completely overlaps with the support base 74. Both the first back panel 9432 and the second back panel 9442 are configured as curved plates, and the first back panel 9432 and the second back panel 9442 are configured in a contoured manner, so that the first back panel 9432 and the second back panel 9442 are spaced apart to form an airflow gap.

[0109] Since the connecting arm 76 is inclined relative to the central axis of the motor, in order to accommodate installation above the support base 74 and the connecting arm 76, the upper parts of the first back panel 9432 and the second back panel 9442 are both protruding towards the air guide shell 75. Thus, compared to making both the first back panel 9432 and the second back panel 9442 flat, their arrangement closer to the air inlet side of the outdoor fan 70 not only makes the overall structure more compact and reduces the size of the outer casing 80, but also improves the negative pressure suction capacity at the first air outlet, thereby improving the ventilation and heat exchange efficiency of the electronic control component 94.

[0110] It should be noted that the specific complete shape of the curved plate includes, but is not limited to, regular shapes such as Z-shape, stepped shape, L-shape, or other irregular shapes. There are no major restrictions here, as long as the space above the support base 74 and the connecting arm 76 can be fully utilized and adjusted and set to match the shape of the connecting arm 76. In this embodiment, a stepped shape of the curved plate is used as an example, but it is not limited to this.

[0111] Please see Figure 7 , Figure 12 and Figure 13 In one embodiment, the first back panel 9432 includes a first main body plate 94321, a first horizontal plate 94322, and a first vertical plate 94323. One end of the first horizontal plate 94322 is connected to the top end of the first main body plate 94321 at an angle. The bottom end of the first vertical plate 94323 is connected to the other end of the first horizontal plate 94322 at an angle. The second back panel 9442 includes a second main body plate 94421, a second horizontal plate 94422, and a second vertical plate 94423. One end of the second horizontal plate 94422 is connected to the top end of the second main body plate 94421 at an angle. The bottom end of the second vertical plate 94423 is connected to the other end of the second horizontal plate 94422 at an angle.

[0112] For example, the first vent section includes a plurality of first vent holes 94324. The specific number of the plurality of first vent holes 94324 may be, for example, 10, 30, or 100 or more, and is not limited here. The plurality of first vent holes 94324 may be arranged in one or more rows, for example, with the number in each row being any value between 2 and 30.

[0113] For example, the first vent also includes a plurality of second vent holes 94325. The plurality of second vent holes 94325 are disposed on the first vertical plate 94323. The number and arrangement of the second vent holes 94325 are similar to the number and rows of the first vent holes 94324, and are not limited here. Under the suction force of the outdoor fan 70, not only is a negative pressure suction force generated at the first vent holes 94324, but also at the second vent holes 94325, which facilitates the extraction of gas from the protective casing 942.

[0114] Since multiple first air outlets 94324 are located on the end of the first horizontal plate 94322 away from the first main body plate 94321, they are relatively close to the outdoor fan 70, which can improve the negative pressure suction force. Furthermore, the multiple first air outlets 94324 located on the first horizontal plate 94322 can effectively prevent condensate from splashing into the second protective shell 944.

[0115] For example, the second vent includes a plurality of third vent holes 94424. The plurality of third vent holes 94424 are disposed on the second main body plate 94421. The number and arrangement of the third vent holes 94424 are similar to the number and arrangement of the first vent holes 94324, and are not limited here. Specifically, the first vent holes 94324 are located at the end of the first transverse plate 94322 away from the first main body plate 94321, and the third vent holes 94424 are located on the second main body plate 94421, resulting in a large distance between the third vent holes 94424 and the first vent holes 94324, effectively preventing condensate from splashing into the second protective shell 944.

[0116] For example, the second vent also includes a plurality of fourth vent holes 94425. The fourth vent holes 94425 are disposed on the second vertical plate 94423. In this way, gas inside the second protective shell 944 can also be discharged outward through the fourth vent holes 94425.

[0117] For example, the distance between the fourth vent 94425 and the bottom wall of the outer casing 80 is greater than the distance between the second vent 94325 and the bottom wall of the outer casing 80. That is, the fourth vent 94425 is positioned higher than the second vent 94325. This effectively prevents condensate from entering the second protective casing 944.

[0118] For example, the first protective shell 943 also includes a first base plate 9433. One end of the first base plate 9433 is connected to the first front panel 9431, and the other end of the first base plate 9433 is connected to the first back panel 9432. Optionally, the first base plate 9433, the first front panel 9431, and the first back panel 9432 are an integrated structure, specifically formed by sheet metal processing or die casting.

[0119] Optionally, the first base plate 9433 is provided with a third air outlet. In this way, when the outdoor fan 70 is working, a negative pressure can be generated at the third air outlet, so that the gas and condensate inside the first protective shell 943 can be discharged to the outside through the third air outlet.

[0120] For example, the second protective shell 944 also includes a second base plate 9443. One end of the second base plate 9443 is connected to the second front panel 9441, and the other end of the second base plate 9443 is connected to the second back panel 9442. Optionally, the second base plate 9443, the second front panel 9441, and the second back panel 9442 are an integrated structure, specifically formed by sheet metal processing or die casting.

[0121] The first base plate 9433 and the second base plate 9443 are spaced apart. The second base plate 9443 is provided with a fourth air outlet. Thus, when the outdoor fan 70 is working, a negative pressure can be generated at the fourth air outlet, allowing the gas and condensate inside the second protective shell 944 to be discharged outward through the fourth air outlet into the gap between the first base plate 9433 and the second base plate 9443, and then discharged outward through the third air outlet.

[0122] In addition, a fourth exhaust section and a third exhaust section are added to the bottom of the protective shell 942 to discharge air outwards, which increases the airflow outlet area, facilitates the ventilation and heat dissipation of the controller 941, and facilitates the discharge of accumulated condensate inside the protective shell 942.

[0123] For example, the third vent section includes multiple fifth vent holes 94331. The number and arrangement of the fifth vent holes 94331 are similar to those of the first vent holes 94324, and will not be described in detail here. This facilitates the discharge of condensate and gas from the protective shell 942, and also provides a certain degree of water-blocking effect, preventing condensate from entering the protective shell 942.

[0124] For example, the fourth vent section includes multiple sixth vent holes 94431. The number and arrangement of the sixth vent holes 94431 are similar to those of the first vent holes 94324, and will not be described in detail here. This facilitates the discharge of condensate and gas from the protective shell 942, and also provides some water-blocking effect, preventing condensate from entering the protective shell 942.

[0125] For example, the third and fourth air outlets are staggered along the thickness direction of the first base plate 9433. This effectively blocks condensate and prevents it from entering the second protective shell 944.

[0126] Please see Figure 7 and Figure 8 For example, at least one of the first base plate 9433 and the second base plate 9443 is provided with a first protrusion 945 protruding towards each other, so that the first base plate 9433 and the second base plate 9443 are spaced apart. Specifically, in this embodiment, each of the first base plate 9433 and the second base plate 9443 is provided with a first protrusion 945 protruding towards each other. The first base plate 9433 and the second base plate 9443 abut against each other through the first protrusion 945, so that the first base plate 9433 and the second base plate 9443 are spaced apart, that is, an airflow gap is formed to ensure ventilation and heat exchange effect.

[0127] Please see Figure 9 , Figure 14 and Figure 15 For example, the first protective shell 943 further includes two first side panels 9434. One side of the first front panel 9431 is connected to one side of the first back panel 9432 via one of the first side panels 9434, and the other side of the first front panel 9431 is connected to the other side of the first back panel 9432 via the other first side panel 9434. The second protective shell 944 further includes two second side panels 9444. One side of the second front panel 9441 is connected to one side of the second back panel 9442 via one of the second side panels 9444, and the other side of the second front panel 9441 is connected to the other side of the second back panel 9442 via the other second side panel 9444. The second side panels 9444 are spaced apart from the first side panels 9434. The first side panels 9434 are provided with a plurality of third air inlets 94341, and the second side panels 9444 are provided with a plurality of fourth air inlets 94441. Thus, when the outdoor fan 70 is working, outdoor air can enter the protective shell 942 not only through the first air inlet 94311 and the second air inlet 94411, but also through the third air inlet 94341 and the fourth air inlet 94441, which can increase the ventilation and heat dissipation effect.

[0128] For example, the third air inlet 94341 and the fourth air inlet 94441 are staggered. This effectively prevents condensate from entering the second protective shell 944, thereby improving the waterproof effect. Specifically, the first side panel 9434 has a third region where multiple third air inlets 94341 are located; the second side panel 9444 has a fourth region where multiple fourth air inlets 94441 are located. The distance between the top edge of the third region and the bottom wall of the outer shell 80 is less than the distance between the bottom edge of the fourth region and the bottom wall of the outer shell 80, that is, the height of the third region is lower than the height of the fourth region.

[0129] Please see Figure 14 and Figure 15 For example, at least one of the first side panel 9434 and the second side panel 9444 is provided with a second protrusion 946 protruding toward each other, so that the first side panel 9434 and the second side panel 9444 are spaced apart. Specifically, in this embodiment, the second side panel 9444 is provided with a second protrusion 946 protruding toward the first side panel 9434. The first side panel 9434 and the second side panel 9444 abut against each other through the second protrusion 946, so that the first side panel 9434 and the second side panel 9444 are spaced apart, that is, an airflow gap is formed, ensuring ventilation and heat exchange effect.

[0130] Please see Figures 5 to 9 In any example, the protective housing 942 further includes a protective cover 947. The top of the first protective housing 943 has a first opening, and the top of the second protective housing 944 has a second opening. The second protective housing 944 is installed inside the first protective housing 943 through the first opening. The controller 941 is installed inside the second protective housing 944 through the second opening. The protective cover 947 is connected to the top of both the first protective housing 943 and the second protective housing 944.

[0131] For example, the edge of the first opening has a first flange, and the edge of the second opening has a second flange. The second flange overlaps the first flange and is connected and fixed to the first flange by pins, screws, etc. In this way, the first protective shell 943 supports the second flange through the first flange, thereby supporting the second protective shell 944, so that an airflow gap is formed between the first protective shell 943 and the second protective shell 944. Of course, the first protective shell 943 and the second protective shell 944 can also be supported at other locations, so that the two are spaced apart to form an airflow gap. The specific arrangement can be flexibly adjusted and set according to actual needs, and is not limited here.

[0132] Generally, the second protective shell 944 in related technologies is made of fire-retardant plastic material, which, while providing fire protection, reduces heat dissipation performance. Therefore, in this embodiment, both the first and second protective shells 943 and 944 are made of metal. This not only facilitates radiative heat dissipation but also improves fire resistance, meaning that when the controller 941 catches fire, there are fewer flammable materials and the fire is less likely to spread outwards.

[0133] In summary, the protective shell 942 in this application adopts a double-layer design with inner and outer layers, and staggered openings for ventilation and waterproofing. In addition, both the first protective shell 943 and the second protective shell 944 are made of metal materials, which have good fire resistance. The airflow of the outdoor fan 70 is used to form a heat dissipation airflow channel inside the electronic control component 94, which better meets the functional requirements of the electronic control component 94.

[0134] For example, controller 941 is equipped with a heating element.

[0135] The heat-generating components include power devices, which generate a large amount of heat when operating. The controller 941 includes a circuit board on which the power devices are integrated. The power devices include, but are not limited to, IPM (Insulated Gate Bipolar Transistor), CIB (Intelligent Power Module), IGBT (Converter-Inverter-Brake) or diodes.

[0136] In order to dissipate heat from the heating element, the air conditioner also includes a heat dissipation mechanism 95. The heat dissipation mechanism 95 is in contact with the heating element and can dissipate heat from the heating element to reduce its temperature.

[0137] For example, the heat dissipation mechanism 95 includes a heat dissipation body 951. The heat dissipation body 951 abuts against the heating element. The heat dissipation body 951 is provided with a heat exchange channel. One end of the heat exchange channel is connected to the outlet of the outdoor heat exchanger 20, and the other end of the heat exchange channel is connected to the inlet of the first throttling device 30. Thus, in use, the refrigerant flowing from the outlet of the outdoor heat exchanger 20 enters the heat exchange channel. During the flow of the refrigerant within the heat dissipation body 951, it exchanges heat with the heat dissipation body 951. The heat dissipation body 951 abuts against the heating element to achieve heat exchange. The heat of the controller 941 is carried away by the refrigerant, thereby reducing the temperature of the controller 941 to meet the heat dissipation requirements of the controller 941 in high-temperature environments.

[0138] For example, after the heat sink 951 and the controller 941 are installed in correspondence, they can be placed into the protective shell 942 and fixed. The protective shell 942 protects the heat sink 951 and the controller 941.

[0139] Based on the aforementioned embodiments, the heat dissipation body 951 directly contacts the heating element, for example. That is, no substrate is needed between the heat dissipation body 951 and the heating element. Therefore, the heat from the heating element can be quickly conducted to the heat dissipation body 951, and the heat dissipation body 951 directly exchanges heat with the refrigerant, carrying away the heat through the refrigerant, thus achieving a better heat dissipation effect. Furthermore, since no substrate needs to be installed between the heat dissipation body 951 and the heating element, the installation efficiency of the heat dissipation mechanism 95 on the controller 941 can be improved.

[0140] Based on the aforementioned embodiments, the heat exchanger body 951 does not require heat exchange copper pipes; instead, a heat exchange channel is directly provided inside. This can also be understood as the refrigerant entering the heat exchanger body 951 directly exchanging heat with it, and then exchanging heat with the heating element through the heat exchanger body 951. This reduces the energy transfer path and improves the heat dissipation effect on the heating element.

[0141] Based on the aforementioned embodiments, the heat dissipation channel includes a first channel and a second channel. One end of the first channel is connected to one end of the second channel, and the other ends of both the first and second channels are connected to a refrigerant circulation loop. Refrigerant in the circulation loop flows into the first channel and out through the second channel. The flow area of ​​the first channel is larger than that of the second channel. This larger flow area in the first channel results in a greater outflow velocity of the refrigerant from the second channel than its inflow velocity into the first channel. This accelerates the refrigerant outflow, carrying away heat from the heating element and further improving the heat dissipation effect to meet the heat dissipation requirements in high-temperature environments.

[0142] Specifically, taking the first and second channels connected in series in the refrigerant circulation loop as an example, the other end of the first channel is connected to the outlet of the condenser through a pipe, and the other end of the second channel is connected to the inlet of the throttling device through a pipe. Of course, the first and second channels can also be connected in parallel in the refrigerant circulation loop. Specifically, the branch formed by the first and second channels is connected in parallel with the pipeline between the outlet of the condenser and the inlet of the throttling device.

[0143] When the air conditioner is running, the refrigerant in the refrigerant circulation loop flows into the first channel and out through the second channel. The flow area of ​​the first channel is larger than that of the second channel.

[0144] Furthermore, when the volume of the heat dissipation mechanism 95 is the same as that of the heat dissipation component in the related technology, since there is no heat exchange copper pipe inside the heat dissipation body 951 and no substrate is provided between the heat dissipation body 951 and the heat-generating element, the flow area of ​​the first channel and the second channel can be larger than the flow area of ​​the heat exchange copper pipe. That is, the amount of refrigerant introduced is larger, and the contact area between the refrigerant and the heat dissipation body 951 is larger, thereby improving the heat dissipation effect.

[0145] When the heat dissipation effect of the heating element is effectively improved, the lifespan and function of the heating element can be improved accordingly. In high-temperature environments, the frequency of operation can be increased, thereby improving the cooling or heating effect of the air conditioner.

[0146] The heat dissipation body 951 includes, but is not limited to, a heat dissipation block in the shape of an elongated strip. This application uses a heat dissipation body 951 in the shape of an elongated strip as an example, but it is not limited thereto.

[0147] For example, the first channel and the second channel are arranged side by side, each extending from one end of the heat dissipation body 951 to the other, specifically along the longitudinal direction of the heat dissipation body 951. Thus, the relatively long length of the first and second channels increases the heat dissipation area between the refrigerant and the heat dissipation body 951, thereby improving the heat dissipation effect.

[0148] For example, the shapes of the first and second channels can be flexibly adjusted and set according to actual needs, including but not limited to straight channels or curved channels. In this embodiment, in order to facilitate the processing of the heat dissipation body 951, both the first and second channels are set as straight channels, for example.

[0149] Of course, the first channel and the second channel can also be arranged along the width of the heat dissipation body 951. The specific arrangement is not limited here and can be flexibly adjusted and set according to actual needs.

[0150] For example, the first channel includes multiple first branches arranged in parallel. These first branches are arranged sequentially, for example, along the width of the heat dissipation body 951. The number of first branches can be, for example, two, three, four, five, or other numbers, and can be flexibly adjusted and set according to actual needs. A larger number of first branches increases the heat exchange area between the refrigerant and the heat dissipation body 951, thereby removing more heat and improving heat dissipation efficiency.

[0151] Specifically, the first router's heat dissipation unit 951 extends from one end to the other.

[0152] For example, the second channel includes multiple second branches arranged in parallel. These second branches are arranged sequentially, for example, along the width of the heat dissipation body 951. The number of second branches can be, for example, two, three, four, five, or other numbers, and can be flexibly adjusted and set according to actual needs. A greater number of second branches increases the heat exchange area between the refrigerant and the heat dissipation body 951, thereby improving the heat dissipation effect.

[0153] Similar to the first branch, the second branch extends from one end of the heat dissipation unit 951 to the other end.

[0154] The number of the second branch can be the same as or different from the number of the first branch; there is no limitation here, and it can be set according to actual needs. The diameter of the second branch can also be the same as or different from the diameter of the first branch; there is no limitation here, and it can be set according to actual needs.

[0155] In a specific example, all first branches have the same diameter, all second branches have the same diameter, and the diameters of the first and second branches are identical. Furthermore, the number of first branches is greater than the number of second branches. Specifically, there are three first branches and two second branches. This ensures that the flow area of ​​the first channel is greater than the flow area of ​​the second channel.

[0156] Optionally, the cross-sectional profiles of the first and second branches along their respective extension directions can be independently adjusted and set according to actual needs, including but not limited to circles, polygons, or other regular and irregular shapes.

[0157] For example, the heat dissipation body 951 is made of metal material through extrusion molding.

[0158] Specifically, the heat sink body 951 is made of aluminum through extrusion molding. This results in high production efficiency and good heat dissipation. Furthermore, the heat sink body 951 has a one-piece structure, making installation convenient and efficient on the controller 941.

[0159] For example, the electronic control assembly 94 also includes a connector. The heat dissipation body 951 is connected and fixed to the controller 941 via the connector. In this way, the heat dissipation mechanism 95 can be connected and fixed to the controller 941.

[0160] Optionally, there may be one or more connectors. In this embodiment, there are multiple connectors, and the heat dissipation body 951 is connected to the controller 941 through multiple connectors, so that the heat dissipation body 951 can be stably mounted on the controller 941.

[0161] Optionally, the connectors include, but are not limited to, screws, pins, rivets, or snap-fit ​​components.

[0162] Please see Figure 18 For example, the air conditioner also includes a second throttling device 96. The second throttling device 96 is connected between the outlet of the outdoor heat exchanger 20 and the inlet of the heat dissipation mechanism 95. Thus, the refrigerant flowing out of the outlet of the outdoor heat exchanger 20 enters the second throttling device 96, which further reduces the temperature of the refrigerant, resulting in a more ideal heat dissipation effect. This allows the lower-temperature refrigerant to enter the heat dissipation mechanism 95, improving its heat dissipation efficiency. This effectively solves the problem of the controller 941 overheating and failing to operate normally in high-temperature environments, enabling the air conditioner to operate normally at high frequencies and improving its cooling capacity.

[0163] Similar to the first throttling device 30, the second throttling device 96 in this embodiment is, for example, an expansion valve. The expansion valve causes the high-temperature, high-pressure liquid refrigerant condensed in the condenser to expand into a low-pressure liquid refrigerant, thereby reducing the temperature of the refrigerant.

[0164] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, the term "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0165] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0166] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0167] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An air conditioner, characterized in that, include: An outer shell that forms an internal receiving space, the internal receiving space being divided into an interior cavity and an exterior cavity; An outdoor fan, wherein the outdoor fan is disposed within the outdoor cavity; An electronic control assembly, wherein the electronic control assembly is disposed within the external cavity; The electronic control component includes: Controller; and Protective shell, the protective shell comprising: A first protective shell, the first protective shell comprising: A first front panel, facing away from the outdoor fan, is provided with a first area, and the first area is provided with a plurality of first air inlets; A first back panel is provided, which is spaced apart from the first front panel, and the first back panel is provided with a first air vent. A second protective shell is disposed inside the first protective shell, and the second protective shell and the first protective shell are spaced apart to form an airflow gap; the controller is disposed inside the second protective shell; the second protective shell includes: The second front panel faces away from the outdoor fan. The second front panel is spaced apart from the first front panel. The second front panel has a second area with multiple second air inlets. The distance between the bottom edge of the second area and the bottom wall of the outer casing is greater than the distance between the top edge of the first area and the bottom wall of the outer casing. The second back panel is disposed at a distance from the first back panel, and the second back panel is provided with a second air outlet.

2. The air conditioner according to claim 1, characterized in that, The first air outlet and the second air outlet are staggered along the thickness direction of the first back panel.

3. The air conditioner according to claim 1, characterized in that, The outdoor fan includes: Drive motor; Fan blades, and the drive motor is connected to the fan blades; A support base, which is connected to the outer casing and also connected to the drive motor; An air guide shell, the air guide shell being arranged circumferentially around the fan blades; and A connecting arm, which connects the support base and the air guide shell; The electronic control component is located above the support base. Both the first back panel and the second back panel are configured as curved plates, and the upper part of the first back panel and the upper part of the second back panel both protrude in a direction close to the air guide shell.

4. The air conditioner according to claim 3, characterized in that, The first back panel includes: First main body panel; A first horizontal plate, one end of which is connected to the top of the first main body plate at an angle; and The first vertical plate has its bottom end connected to the other end of the first horizontal plate at an angle. The second back panel includes: Second main body panel; The second horizontal plate, one end of which is connected to the top of the second main plate at an angle; and The second vertical plate has its bottom end connected to the other end of the second horizontal plate at an angle.

5. The air conditioner according to claim 4, characterized in that, The first air outlet includes a plurality of first air outlets and a plurality of second air outlets. The plurality of first air outlets are disposed at one end of the first horizontal plate away from the first main body plate, and the plurality of second air outlets are disposed on the first vertical plate. The second vent includes a plurality of third vent holes and a plurality of fourth vent holes. The third vent holes are disposed on the second main body plate, and the fourth vent holes are disposed on the second vertical plate. The distance between the fourth vent hole and the bottom wall of the outer shell is greater than the distance between the second vent hole and the bottom wall of the outer shell.

6. The air conditioner according to claim 1, characterized in that, The first protective shell also includes: A first base plate, one end of which is connected to the first front panel, and the other end of which is connected to the first back panel. The first base plate is provided with a third air outlet. The second protective shell also includes: The second base plate has one end connected to the second front panel and the other end connected to the second back panel. The first base plate and the second base plate are spaced apart. The second base plate is provided with a fourth air outlet.

7. The air conditioner according to claim 6, characterized in that, The third air outlet and the fourth air outlet are staggered along the thickness direction of the first base plate; and / or, The third air outlet includes a plurality of fifth air outlets; the fourth air outlet includes a plurality of sixth air outlets; and / or, At least one of the first base plate and the second base plate is provided with a first protrusion that protrudes toward each other, so that the first base plate and the second base plate are spaced apart.

8. The air conditioner according to claim 1, characterized in that, The first protective shell also includes: Two first side panels, each first side panel having multiple third air inlets, one side of the first front panel being connected to one side of the first back panel via one of the first side panels, and the other side of the first front panel being connected to the other side of the first back panel via the other first side panel; The second protective shell also includes: Two second side panels, one side of the second front panel is connected to one side of the second back panel through one of the second side panels, and the other side of the second front panel is connected to the other side of the second back panel through the other second side panel; the second side panels are arranged at intervals relative to the first side panel, and the second side panels are provided with a plurality of fourth air inlets.

9. The air conditioner according to claim 8, characterized in that, The first side panel has a third region, and a plurality of third air inlets are disposed in the third region; the second side panel has a fourth region, and a plurality of fourth air inlets are disposed in the fourth region; the distance between the top edge of the third region and the bottom wall of the outer casing is less than the distance between the bottom edge of the fourth region and the bottom wall of the outer casing; and / or, At least one of the first side panel and the second side panel is provided with a second protrusion that protrudes outward from each other.

10. The air conditioner according to claim 1, characterized in that, The first protective shell is made of metal, and the second protective shell is made of metal.

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