Air conditioner outdoor unit and air conditioner

Abstract

The invention belongs to the technical field of air conditioning equipment, and particularly relates to an air conditioner outdoor unit and an air conditioner. The air conditioner outdoor unit comprises a box body, a fan assembly and an electric control box assembly, the fan assembly communicates with the interior of the box body and forms an exhaust channel, at least part of the electric control box assembly is arranged in the box body, a first heat dissipation channel and a second heat dissipation channel are formed in the electric control box assembly, a first heating piece is arranged in the first heat dissipation channel, and a second heating piece is arranged in the second heat dissipation channel. The electric control box assembly is further provided with a first air inlet and a second air inlet, the first heat dissipation channel and the second heat dissipation channel are communicated with the outside of the box body through the first air inlet, and at least one of the first heat dissipation channel and the second heat dissipation channel is communicated with the exhaust channel through the second air inlet. According to the air conditioner outdoor unit, the heat dissipation speed of the first heating piece and the second heating piece can be effectively increased, and then the heat dissipation speed of a power device in the electric control box assembly is increased.

Description

Technical Field

[0001] The present application belongs to the technical field of air-conditioning equipment, and specifically relates to an air-conditioner outdoor unit and an air-conditioner. Background Art

[0002] With the increasing popularity of high-power variable frequency air conditioners, the heat generated by the power devices on the electronic control board of its outdoor unit is also increasing. In particular, high-power devices such as electronic control modules will generate a large amount of heat when working, causing their temperature to rise rapidly. If they cannot be cooled in time, their performance will be reduced or even burned.

[0003] The existing heat dissipation method is to conduct the heat of the power devices on the electronic control board through the radiator, and then remove it through air convection heat exchange in the chassis. However, in the case of high-temperature and high-load cooling, the air temperature in the chassis is usually high, and the air flowing into the electronic control box and the air passing through the heat exchanger have low flow rates, resulting in this cooling method being unable to meet the heat dissipation requirements of the power devices, affecting the performance of the electronic devices. Summary of the invention

[0004] The purpose of this application is to at least solve the problem that the power devices in the electric control box cannot be effectively cooled. This purpose is achieved by:

[0005] The first aspect of the present application provides an air conditioner outdoor unit, the air conditioner outdoor unit comprising:

[0006] Box;

[0007] A fan assembly is connected to the interior of the box and forms an exhaust passage;

[0008] An electric control box assembly, at least part of which is arranged inside the box body, a first heat dissipation channel and a second heat dissipation channel are formed inside the electric control box assembly, a first heat dissipation channel is provided in the first heat dissipation channel, a second heat dissipation channel is provided in the second heat dissipation channel, the electric control box assembly is also provided with a first air inlet and a second air inlet, the first heat dissipation channel and the second heat dissipation channel are respectively connected to the outside of the box body through the first air inlet, and at least one of the first heat dissipation channel and the second heat dissipation channel is connected to the exhaust channel through the second air inlet.

[0009] According to the air conditioner outdoor unit of the present application, the first heat dissipation channel and the second heat dissipation channel are respectively connected to the outside of the box body through the first air inlet, so that the airflow outside the box body can be introduced into the first heat dissipation channel and the second heat dissipation channel, and are respectively used to dissipate heat and cool the first heating element and the second heating element. At the same time, at least one of the first heat dissipation channel and the second heat dissipation channel is connected to the exhaust channel through the second air inlet, so that the airflow in the exhaust channel can be introduced into the first heat dissipation channel and / or the second heat dissipation channel, and is used to dissipate heat and cool the first heating element and / or the second heating element, thereby effectively increasing the airflow in the electric control box assembly, increasing the heat dissipation speed of the first heating element and the second heating element, and then increasing the heat dissipation speed of the power device in the electric control box assembly.

[0010] In some embodiments of the present application, the electric control box assembly further includes a mounting plate, and two opposite plate surfaces of the mounting plate are respectively provided with the first heat dissipation channel and the second heat dissipation channel, and the first heat generating element and the second heat generating element are respectively connected to the mounting plate.

[0011] In some embodiments of the present application, the first heat-generating element includes an electric control board, the second heat-generating element includes a heat sink, and the electric control board is thermally connected to the heat sink.

[0012] In some embodiments of the present application, a third air inlet is provided at the bottom of the first heat dissipation channel, and the first air inlet, the third air inlet and the second air inlet are arranged in sequence along the horizontal direction from the outside of the box body to the inside of the box body, the first heat dissipation channel is connected to the first air inlet through the third air inlet, and the second heat dissipation channel is connected to the exhaust duct through the second air inlet.

[0013] In some embodiments of the present application, along the vertical direction, the second air inlet, the first air inlet and the third air inlet are arranged in sequence from bottom to top.

[0014] In some embodiments of the present application, a first air outlet is provided on the top of the electric control box assembly, and the first heat dissipation channel is connected to the exhaust channel through the first air outlet.

[0015] In some embodiments of the present application, a wind shield is also provided on the top of the electric control box assembly, and the wind shield is arranged outside the first heat dissipation channel and opposite to the first air outlet. A second air outlet is provided at the bottom of the wind shield, and the first air outlet is connected to the exhaust channel through the second air outlet.

[0016] In some embodiments of the present application, the third air inlet includes a plurality of hole-like structures; and / or the first air outlet includes a plurality of hole-like structures.

[0017] In some embodiments of the present application, the electrical control box assembly is also provided with an air guide cover, which is arranged on the outside of the second heating element, and a third air outlet is provided on the top of the air guide cover, and the third air outlet is arranged opposite to the second air outlet, and the second heat dissipation channel is connected with the exhaust channel through the third air outlet.

[0018] In some embodiments of the present application, the fan assembly is disposed above the electric control box assembly, and portions of the exhaust duct are respectively disposed above and below the electric control box assembly.

[0019] A second aspect of the present application provides an air conditioner, which has an air conditioner outdoor unit as described in any one of the above items, and further includes an air conditioner indoor unit, and the air conditioner indoor unit and the air conditioner outdoor unit are connected through a refrigerant pipeline.

[0020] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. In addition, the same reference numerals are used throughout the accompanying drawings to represent the same components. Among them:

[0022] Figure 1 It is a structural schematic diagram of an air conditioner outdoor unit according to an embodiment of the present application;

[0023] Figure 2 A schematic diagram of the disassembled structure of an air conditioner outdoor unit according to an embodiment of the present application;

[0024] Figure 3 AA is a schematic diagram of the cross-sectional structure of an air conditioner outdoor unit according to an embodiment of the present application;

[0025] Figure 4 It is a schematic diagram of the enlarged structure of part B of an air conditioner outdoor unit according to an embodiment of the present application;

[0026] Figure 5 It is a schematic diagram of the enlarged structure of the C part of the outdoor unit of the air conditioner according to an embodiment of the present application;

[0027] Figure 6 It is a partial structural schematic diagram of an electric control box assembly according to an embodiment of the present application;

[0028] Figure 7 It is a schematic diagram of the enlarged structure of the D part of the electric control box assembly according to one embodiment of the present application;

[0029] Figure 8 It is a schematic diagram of the enlarged structure of part E of the electric control box assembly according to one embodiment of the present application.

[0030] The reference numerals in the accompanying drawings represent the following:

[0031] 1. Air conditioner outdoor unit;

[0032] 10. Box body; 11. Air vent; 12. Open end;

[0033] 20. Outdoor heat exchanger;

[0034] 30. Compressor;

[0035] 40. Electric control box assembly; 41. Mounting plate; 411. First heat dissipation channel; 412. Second heat dissipation channel; 413. Third air inlet; 414. First air outlet; 42. Electric control board; 43. Heat sink; 44. Cover plate; 45. Wind guide cover; 451. Second air inlet; 452. Third air outlet; 453. Wind guide plate; 46. Lower side plate; 461. First air inlet; 462. Extending end; 47. Wind shield; 471. Second air outlet; 48. Mounting frame; 49. Water shield;

[0036] 50. Fan assembly. DETAILED DESCRIPTION

[0037] The exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present application and to fully convey the scope of the present application to those skilled in the art.

[0038] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0039] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0040] For ease of description, spatial relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure is turned over, then the elements described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." can include both upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative descriptors used in the text are interpreted accordingly.

[0041] At present, the heat dissipation method of the electric control box of the air conditioner outdoor unit is to conduct the heat of the power devices on the electric control board through the radiator, and then remove it through air convection heat exchange in the chassis. However, under high-temperature and high-load cooling conditions, the air temperature in the chassis is usually high, and the air flow rate flowing into the electric control box and passing through the heat exchanger is low, resulting in this cooling method being unable to meet the heat dissipation requirements of the power devices, affecting the performance of the electronic devices.

[0042] In order to solve the problem that the power devices in the electric control box cannot be effectively cooled, the present application proposes an air conditioner outdoor unit and an air conditioner having the air conditioner outdoor unit, which can effectively increase the air flow in the electric control box assembly, thereby increasing the heat dissipation speed of the power devices in the electric control box assembly.

[0043] For the convenience of description, in the embodiments of the present application, only the air conditioner is taken as an example of a central air conditioner.

[0044] Central air conditioning includes an air conditioner indoor unit and an air conditioner outdoor unit. The air conditioner outdoor unit is usually installed outdoors, and the air conditioner indoor unit is usually installed indoors. The air conditioner outdoor unit and the air conditioner indoor unit work together to achieve the air conditioner's cooling, heating, dehumidification and air purification functions to achieve comfortable air quality.

[0045] In a central air conditioner, there is usually one outdoor air conditioner unit, and there can be multiple indoor air conditioner units. Each indoor air conditioner unit is provided with one or more air outlets to discharge the cooled, heated, dehumidified or purified air into the room through the air outlets. An indoor heat exchanger is usually provided in the indoor air conditioner unit, and an outdoor heat exchanger is usually provided in the outdoor air conditioner unit. The indoor heat exchanger and the outdoor heat exchanger are usually connected through a refrigerant pipeline, so that the refrigerant can flow between the indoor heat exchanger and the outdoor heat exchanger.

[0046] During the cooling process of the central air conditioner, the indoor heat exchanger is the evaporator, and the refrigerant in the evaporator absorbs heat from liquid to gas. In the process of refrigerant evaporation and heat absorption, the evaporator exchanges heat with the air flowing through the evaporator, and takes away the heat in the air in the indoor unit of the air conditioner, so that the air discharged from the indoor unit of the air conditioner is the air after heat release and cooling, and the indoor unit of the air conditioner blows cold air. At the same time, the outdoor heat exchanger is the condenser, and the refrigerant in the condenser changes from gas to liquid. In the process of refrigerant condensation and heat release, the condenser exchanges heat with the air in the outdoor unit of the air conditioner flowing through the condenser, so that the air in the outdoor unit of the air conditioner brings the heat of the condenser to the outside of the outdoor unit of the air conditioner, realizing the cooling process.

[0047] During the heating process of the central air conditioner, the outdoor heat exchanger is the evaporator, and the refrigerant in the evaporator absorbs heat from liquid to gas. In the process of refrigerant evaporation and heat absorption, the evaporator exchanges heat with the air flowing through the evaporator, and replaces the heat carried by the air in the air conditioner outdoor unit with the refrigerant in the evaporator. At the same time, the indoor heat exchanger is the condenser, and the refrigerant in the condenser changes from gas to liquid. In the process of refrigerant condensation and heat release, the condenser exchanges heat with the air in the air conditioner indoor unit flowing through the condenser, so that the air in the air conditioner indoor unit takes away the heat carried by the condenser and discharges it from the air conditioner indoor unit to the room outside the air conditioner indoor unit, so that the indoor unit blows hot air, thereby realizing the heating process.

[0048] Combination Figures 1 to 3As shown, in some embodiments of the present application, the air conditioner outdoor unit 1 includes a housing 10, and a mounting cavity for mounting various electrical components is formed inside the housing 10, wherein the various electrical components include an outdoor heat exchanger 20 and a compressor 30. Since the outdoor heat exchanger 20 and the compressor 30 release a large amount of heat during operation, and other electrical components also release a certain amount of heat during operation, in order to facilitate heat dissipation of the various electrical components in the housing 10, the air conditioner outdoor unit 1 also includes a fan assembly 50, which is connected to the mounting cavity and forms an exhaust passage, and the heat generated by the various electrical components in the housing 10 is discharged to the outside of the housing 10 through the action of the fan assembly 50. Among them, the fan assembly 50 can be arranged outside the housing 10 and placed above the housing 10, and the fan assembly 50 can also be placed inside the housing 10 and arranged near the top. The fan assembly 50 is placed above the box 10 or on the top of the box 10, and an air outlet is formed on the top of the fan assembly 50, so that the fan assembly 50 can be convenient for discharging air toward the top of the box 10, and the air flow will not directly act on the operators around the box 10, thereby reducing the occurrence of accidental injuries to the operators. Among them, the box 10 is provided with a plurality of air holes 11, and when the fan assembly 50 is working, the air outside the box 10 can enter the inside of the box 10 through the air holes 11 and form an airflow, thereby cooling and dissipating the heat of the electrical components in the box 10.

[0049] In some embodiments of the present application, the air conditioner outdoor unit 1 further includes an electric control box assembly 40, which is connected to various electrical components and used to control various electrical components. The electric control box assembly 40 is arranged on the side wall of the box body 10 and is connected to the box body 10 in a detachable manner, so as to facilitate the disassembly and maintenance of the electric control box assembly 40. Specifically, the side wall of the box body 10 is provided with an open end 12, and the electric control box assembly 40 is arranged at the open end 12 and is used to shield the open end 12. By disassembling the electric control box assembly 40, the electrical components inside the box body 10 can be repaired or replaced. Among them, most of the electrical components in the box body 10 are respectively connected to the electric control box assembly 40, such as the fan assembly 50, the outdoor heat exchanger 20 and the compressor 30, and are controlled by the electric control box assembly 40.

[0050] Combination Figure 3 and Figure 4As shown, in some embodiments of the present application, at least part of the electric control box assembly 40 is arranged inside the box body 10, and a first heat dissipation channel 411 and a second heat dissipation channel 412 are formed in the electric control box assembly 40, a first heat dissipation channel 411 is provided with a first heating element, and a second heat dissipation channel 412 is provided with a second heating element, and the electric control box assembly 40 is also provided with a first air inlet 461 and a second air inlet 451, and the first heat dissipation channel 411 and the second heat dissipation channel 412 are respectively connected to the outside of the box body 10 through the first air inlet 461, and at least one of the first heat dissipation channel 411 and the second heat dissipation channel 412 is connected to the exhaust channel through the second air inlet 451.

[0051] Specifically, the first heating element can be a power device or a heat sink thermally connected to the power device, and the second heating element can be a power device or a heat sink thermally connected to the power device. The airflow in the heat dissipation channel can directly dissipate heat and cool the power device, or the airflow in the heat dissipation channel dissipates heat and cools the heat sink thermally connected to the power device, thereby dissipating heat from the power device through the heat sink. The thermal connection in the present application includes contact thermal connection or non-contact thermal connection. Contact thermal connection means that the two are in contact and conduct heat, and non-contact thermal connection means that heat is conducted through hot air flow.

[0052] In some embodiments of the present application, the first heating element is a power device, specifically an electric control board 42, and the second heating element is a heat sink, specifically a heat sink 43. The electric control board 42 is thermally connected to the heat sink 43, and the heat sink 43 increases the heat dissipation area of ​​the electric control board 42, thereby accelerating the heat dissipation speed of the electric control board 42 through the heat sink 43. Specifically, the heat sink 43 can be directly attached to the electric control board 42, or the heat sink 43 and the electric control board 42 can be connected by a connector, or the heat sink and the electric control board are spaced apart and thermally connected by airflow between the two.

[0053] According to the air conditioner outdoor unit 1 of the present application, the first heat dissipation channel 411 and the second heat dissipation channel 412 are respectively connected to the outside of the box body 10 through the first air inlet 461, so that the airflow outside the box body 10 can be introduced into the first heat dissipation channel 411 and the second heat dissipation channel 412, and are respectively used to dissipate heat and cool the electric control board 42 and the heat sink 43. At the same time, at least one of the first heat dissipation channel 411 and the second heat dissipation channel 412 is connected to the exhaust channel through the second air inlet 451, so that the airflow in the exhaust channel can be introduced into the first heat dissipation channel 411 and / or the second heat dissipation channel 412, and is used to dissipate heat and cool the electric control board 42 and / or the heat sink 43, thereby effectively increasing the airflow in the electric control box assembly 40, increasing the heat dissipation speed of the electric control board 42 and the heat sink 43, and further increasing the heat dissipation speed of the power devices in the electric control box assembly 40.

[0054] Recombination Figures 2 to 4 As shown, in some embodiments of the present application, the electric control box assembly 40 also includes a mounting plate 41, and two opposite plate surfaces of the mounting plate 41 are respectively provided with a first heat dissipation channel 411 and a second heat dissipation channel 412, and the first heat generating element and the second heat generating element are respectively connected to the mounting plate 41.

[0055] Specifically, the mounting plate 41 includes a first plate surface and a second plate surface that are oppositely arranged, wherein the first plate surface is arranged toward the outside of the box body 10, and the second plate surface is arranged toward the inside of the box body 10. The electric control box assembly 40 also includes a cover plate 44 and an air guide cover 45, wherein the cover plate 44 is arranged opposite to the first plate surface, and a first heat dissipation channel 411 is formed therebetween, and the air guide cover 45 is arranged opposite to the second plate surface, and a second heat dissipation channel 412 is formed therebetween. The cover plate 44 is arranged on the side of the first plate surface that faces the outside of the box body 10, and when the electric control box assembly 40 is installed to the box body 10, the cover plate 44 can form a part of the plate surface of the box body 10 and is used to cover the open end 12. When it is necessary to inspect and replace the components inside the electric control box assembly 40, it is not necessary to dismantle the electric control box assembly 40 as a whole, and only the cover plate 44 needs to be removed to inspect and replace the internal components of the electric control box assembly 40. The air guide cover 45 is disposed inside the housing 10 and is used to separate the second heat dissipation channel 412 from the exhaust channel inside the housing 10 , thereby allowing more airflow outside the housing 10 to enter the second heat dissipation channel 412 , thereby improving the heat dissipation effect on the heat sink 43 .

[0056] Combination Figure 3 and Figure 4 As shown, in some embodiments of the present application, a third air inlet 413 is provided at the bottom of the first heat dissipation channel 411, and the first air inlet 461, the third air inlet 413 and the second air inlet 451 are arranged in sequence along the horizontal direction from the outside of the box body 10 to the inside of the box body 10, the first heat dissipation channel 411 is connected to the first air inlet 461 through the third air inlet 413, and the second heat dissipation channel 412 is connected to the exhaust duct through the second air inlet 451.

[0057] Specifically, Figure 4 The direction indicated by the black arrow is the direction of the airflow in the electric control box assembly 40. Since the third air inlet 413 is disposed between the first air inlet 461 and the second air inlet 451, the airflow entering the second heat dissipation channel 412 through the second air inlet 451 flows toward one side of the air guide cover 45 under the action of the airflow of the first air inlet 461, thereby reducing the airflow in the exhaust channel entering the first heat dissipation channel 411 through the third air inlet 413, thereby making the airflow entering the first heat dissipation channel 411 all the airflow outside the box 10, or making the airflow entering the first heat dissipation channel 411 mostly the airflow outside the box 10, thereby improving the heat dissipation effect on the electric control board 42 in the first heat dissipation channel 411.

[0058] Combination Figure 3 and Figure 4 As shown, in some embodiments of the present application, along the vertical direction, the second air inlet 451, the first air inlet 461 and the third air inlet 413 are arranged in sequence from bottom to top.

[0059] Since the second air inlet 451 is arranged below the first air inlet 461, after the airflow in the exhaust channel enters the middle electric control box assembly 40 through the second air inlet 451, the airflow moves toward the side of the air guide cover 45 under the action of the airflow entering the electric control box assembly 40 from the first air inlet 461. At the same time, the airflow entering the electric control box assembly 40 from the first air inlet 461 moves toward the second heat dissipation channel 412 under the action of the airflow from the second air inlet 451, thereby forming a mixed airflow in the second heat dissipation channel 412, increasing the airflow volume in the second heat dissipation channel 412, and improving the heat dissipation effect on the heat sink 43.

[0060] Since the third air inlet 413 is arranged above the first air inlet 461, the airflow outside the box 10 enters the interior of the electric control box assembly 40 through the first air inlet 461, and then bends upward and enters the first heat dissipation channel 411 through the third air inlet 413, thereby forming a bent air inlet flow channel, which can specifically be a 90° bending angle, thereby preventing mosquitoes or rainwater from entering the first heat dissipation channel 411 through the third air inlet 413.

[0061] Combination Figure 3 and Figure 5 As shown, in some embodiments of the present application, a first air outlet 414 is provided on the top of the electric control box assembly 40 , and the first heat dissipation channel 411 is connected to the exhaust channel through the first air outlet 414 .

[0062] The first heat dissipation channel 411 is connected to the exhaust channel through the first air outlet 414. The airflow discharged from the first heat dissipation channel 411 can be quickly discharged to the outside of the box 10 under the action of the airflow in the exhaust channel, thereby increasing the airflow flow speed in the first heat dissipation channel 411 and further increasing the heat dissipation speed of the electronic control board 42.

[0063] Combination Figure 3 and Figure 5 As shown, in some embodiments of the present application, a wind shield 47 is also provided on the top of the electric control box assembly 40. The wind shield 47 is arranged outside the first heat dissipation channel 411 and is arranged opposite to the first air outlet 414. A second air outlet 471 is provided at the bottom of the wind shield 47. The first air outlet 414 is connected to the exhaust channel through the second air outlet 471.

[0064] Specifically, a second air outlet 471 is formed between the bottom of the wind shield 47 and the mounting plate 41, and the second air outlet 471 is arranged below the first air outlet 414. The airflow discharged from the first heat dissipation channel 411 through the first air outlet 414 moves toward the direction of the second air outlet 471 under the action of the wind shield 47, and is discharged into the exhaust channel through the second air outlet 471, thereby forming a bent exhaust flow channel, which can be specifically a 90° bending angle, thereby preventing mosquitoes or rainwater from entering the first heat dissipation channel 411 through the first air outlet 414. Among them, the bottom of the wind shield 47 has a bent section bent toward the mounting plate 41, thereby gradually reducing the area of ​​the airflow flow path along the first air outlet 414 toward the second air outlet 471, further preventing mosquitoes or rainwater from entering the first heat dissipation channel 411 through the first air outlet 414.

[0065] Combination Figures 3 to 8 As shown, in some embodiments of the present application, the third air inlet 413 includes a plurality of hole-like structures; and / or the first air outlet 414 includes a plurality of hole-like structures.

[0066] Specifically, the bottom of the mounting plate 41 is provided with a convex plate extending toward the outside of the box body 10, and the surface of the convex plate is provided with a plurality of hole-like structures, which together form the third air inlet 413, which may be a strip hole, a circle, a directional hole or other regular or irregular hole-like structures, thereby preventing mosquitoes or rainwater from entering the first heat dissipation channel 411 through the third air inlet 413. The top of the mounting plate 41 is also provided with a plurality of hole-like structures, which together form the first air outlet 414, which may be a strip hole, a circle, a directional hole or other regular or irregular hole-like structures, thereby preventing mosquitoes or rainwater from entering the first heat dissipation channel 411 through the first air outlet 414.

[0067] like Figure 3 As shown, in some embodiments of the present application, a third air outlet 452 is provided on the top of the air guide cover 45 , the third air outlet 452 is arranged opposite to the second air outlet 471 , and the second heat dissipation channel 412 is connected to the exhaust channel through the third air outlet 452 .

[0068] Specifically, a second air inlet 451 is formed at the bottom of the air guide cover 45, and a third air outlet 452 is provided at the top of the air guide cover 45. A second heat dissipation channel 412 is formed between the second air inlet 451 and the third air outlet 452. The airflow outside the box 10 and the airflow inside the box 10 enter the second heat dissipation channel 412 through the second air inlet 451, and are discharged from the second heat dissipation channel 412 through the third air outlet 452. The airflow discharged from the second heat dissipation channel 412 can be quickly discharged to the outside of the box 10 under the action of the exhaust airflow, thereby increasing the airflow flow speed in the second heat dissipation channel 412, and then increasing the heat dissipation speed of the heat sink 43. At the same time, due to the presence of the wind shield 47, the airflow discharged from the second air outlet 471 moves downward, and by relatively arranging the third air outlet 452 and the second air outlet 471, the airflow discharged from the second air outlet 471 and the airflow discharged from the third air outlet 452 can interact with each other and move toward the exhaust channel together, thereby being discharged to the outside of the box 10 through the exhaust channel.

[0069] In some embodiments of the present application, an air guide plate 453 is further provided on the top of the air guide cover 45, and the air guide plate 453 extends from bottom to top in a direction away from the mounting plate 41, so as to guide the airflow discharged from the second heat dissipation channel 412 to move in the direction of the exhaust channel.

[0070] Combination Figure 3 , Figure 4 and Figure 6 As shown, in some embodiments of the present application, the electric control box assembly 40 further includes a lower side plate 46, which is disposed below the electric control board 42, and the lower side plate 46 passes through the first air inlet 461, and the first air inlet 461 may be a shutter structure, thereby increasing the air intake of the electric control box assembly 40, or the first air inlet 461 may also include a plurality of hole-like structures, thereby preventing mosquitoes or rainwater from entering the interior of the box body 10 through the first air inlet. The top of the lower side plate 46 is also provided with an extension end 462 extending toward the outside of the box body 10, and the extension end 462 is used to cover the opening between the cover plate 44 and the bottom of the mounting plate 41.

[0071] Combination Figure 3 and Figure 6 As shown, in some embodiments of the present application, the electric control box assembly 40 further includes a mounting frame 48, which is disposed on the mounting plate 41 and below the electric control board 42 for fixing some power devices.

[0072] Combination Figure 3 and Figure 6As shown, in some embodiments of the present application, the electric control box assembly 40 further includes a water baffle 49, which is disposed on the top of the mounting plate 41, and is used to shield the electric control board 42 above the electric control board 42, thereby reducing the occurrence of water passing through the top of the electric control board 42 and falling onto the electric control board 42.

[0073] Combination Figures 1 to 3 As shown, in some embodiments of the present application, the fan assembly 50 is disposed above the electric control box assembly 40 , and partial exhaust ducts are respectively disposed above and below the electric control box assembly 40 .

[0074] By setting a partial exhaust channel below the electrical control box assembly 40, the airflow in the exhaust channel can enter the second heat dissipation channel 412 through the second air inlet 451, thereby increasing the airflow in the second heat dissipation channel 412. By setting a partial exhaust channel above the electrical control box assembly 40, it is convenient to guide the exhaust airflow of the first heat dissipation channel 411 and the second heat dissipation channel 412 into the exhaust channel, and quickly discharge it to the outside of the box body 10 through the exhaust channel, thereby accelerating the airflow speed in the first heat dissipation channel 411 and the second heat dissipation channel 412, thereby increasing the heat dissipation speed of the electrical control board 42 and the heat sink 43.

[0075] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. An outdoor unit of an air conditioner, characterized in that: include: Box; A fan assembly is connected to the interior of the box and forms an exhaust passage; An electric control box assembly, at least part of which is arranged inside the box body, a first heat dissipation channel and a second heat dissipation channel are formed inside the electric control box assembly, a first heat dissipation channel is provided in the first heat dissipation channel, a second heat dissipation channel is provided in the second heat dissipation channel, the electric control box assembly is also provided with a first air inlet and a second air inlet, the first heat dissipation channel and the second heat dissipation channel are respectively connected to the outside of the box body through the first air inlet, and at least one of the first heat dissipation channel and the second heat dissipation channel is connected to the exhaust channel through the second air inlet.

2. The air conditioner outdoor unit according to claim 1, characterized in that: The electric control box assembly also includes a mounting plate, and the first heat dissipation channel and the second heat dissipation channel are correspondingly arranged on two opposite plate surfaces of the mounting plate, and the first heat generating element and the second heat generating element are respectively connected to the mounting plate.

3. The air conditioner outdoor unit according to claim 2, characterized in that: The first heating element comprises an electric control board, the second heating element comprises a heat sink, and the electric control board is thermally connected to the heat sink.

4. The air conditioner outdoor unit according to claim 1, characterized in that: A third air inlet is provided at the bottom of the first heat dissipation channel. In the horizontal direction from the outside of the box body to the inside of the box body, the first air inlet, the third air inlet and the second air inlet are arranged in sequence. The first heat dissipation channel is connected with the first air inlet through the third air inlet, and the second heat dissipation channel is connected with the exhaust duct through the second air inlet.

5. The air conditioner outdoor unit according to claim 4, characterized in that: Along the vertical direction, the second air inlet, the first air inlet and the third air inlet are arranged in sequence from bottom to top.

6. The air conditioner outdoor unit according to claim 4, characterized in that: A first air outlet is provided on the top of the electric control box assembly, and the first heat dissipation channel is connected with the exhaust channel through the first air outlet.

7. The air conditioner outdoor unit according to claim 6, characterized in that: A wind shield is also provided on the top of the electric control box assembly. The wind shield is arranged outside the first heat dissipation channel and opposite to the first air outlet. A second air outlet is provided at the bottom of the wind shield. The first air outlet is connected to the exhaust channel through the second air outlet.

8. The air conditioner outdoor unit according to claim 7, characterized in that: The third air inlet includes a plurality of hole-like structures; and / or the first air outlet includes a plurality of hole-like structures.

9. The air conditioner outdoor unit according to claim 7, characterized in that: The electric control box assembly is also provided with an air guide cover, which is arranged on the outside of the second heating element. A third air outlet is arranged on the top of the air guide cover, and the third air outlet is arranged opposite to the second air outlet. The second heat dissipation channel is connected with the exhaust channel through the third air outlet.

10. The air conditioner outdoor unit according to any one of claims 1 to 9, characterized in that: The fan assembly is arranged above the electric control box assembly, and parts of the exhaust duct are respectively arranged above and below the electric control box assembly.

11. An air conditioner, characterized in that: An air conditioner outdoor unit according to any one of claims 1 to 10 is provided, wherein the air conditioner further comprises an air conditioner indoor unit, and the air conditioner indoor unit and the air conditioner outdoor unit are connected via a refrigerant pipeline.

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