Air conditioner outdoor unit and air conditioner

Abstract

Provided are an air conditioner outdoor unit (1) and an air conditioner. The air conditioner outdoor unit (1) comprises a box body (10), a fan assembly (50), and an electric control box assembly (40), wherein the fan assembly (50) is in communication with the interior of the box body (10) and forms an air exhaust channel, the electric control box assembly (40) is at least partially arranged inside the box body (10), a first heat dissipation channel (411) and a second heat dissipation channel (412) are formed in the electric control box assembly (40), a first heating member is provided in the first heat dissipation channel (411), and a second heating member is provided in the second heat dissipation channel (412); and the electric control box assembly (40) is further provided with a first air inlet (461) and a second air inlet (451), the first heat dissipation channel (411) and the second heat dissipation channel (412) are both in communication with the outside of the box body (10) by means of the first air inlet (461), and at least one of the first heat dissipation channel (411) and the second heat dissipation channel (412) is in communication with the air exhaust channel by means of the second air inlet (451), such that the rate of heat dissipation from the first heating member and the rate of heat dissipation from the second heating member can be effectively increased, which in turn increases the rate of heat dissipation from a power device inside the electric control box assembly (40).

Description

Air conditioner outdoor unit and air conditioner

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application number 202310768451.9, entitled “Air Conditioner Outdoor Unit and Air Conditioner,” filed with the State Intellectual Property Office of China on June 27, 2023. The entire contents of the application are incorporated herein by reference. Technical Field

[0003] 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

[0004] With the increasing popularity of high-power inverter air conditioners, the heat generated by the power components on the electronic control boards of their outdoor units is also increasing. In particular, high-power components such as the electronic control module generate a large amount of heat during operation, causing their temperature to rise rapidly. If heat is not dissipated in a timely manner, their performance will be reduced or even burnt out.

[0005] The existing heat dissipation method is to conduct heat from the power devices on the electronic control board through a radiator, and then remove it through air convection 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 flow rate flowing into the electronic control box and passing through the heat exchanger is low. As a result, this cooling method cannot meet the heat dissipation requirements of the power devices, affecting the performance of the electronic devices.

[0006] Summary of the Invention

[0007] The purpose of this application is to at least solve the problem of ineffective heat dissipation of power devices in the electric control box. This purpose is achieved by:

[0008] The first aspect of the present application provides an air conditioner outdoor unit, the air conditioner outdoor unit comprising:

[0009] Box;

[0010] a fan assembly, connected to the interior of the box and forming an exhaust passage;

[0011] An electrical 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 in the electrical control box assembly, a first heat dissipation channel is provided in the first heat dissipation channel, and a second heat dissipation channel is provided in the second heat dissipation channel, the electrical 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.

[0012] 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 through the first air inlet, so that the airflow outside the box 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 thereby increasing the heat dissipation speed of the power device in the electric control box assembly.

[0013] In some embodiments of the present application, the electric control box assembly further includes a mounting plate, and the first heat dissipation channel and the second heat dissipation channel are correspondingly provided on two opposite sides of the mounting plate, and the first heating element and the second heating element are respectively connected to the mounting plate.

[0014] In some embodiments of the present application, the first heating element includes an electric control board, the second heating element includes a heat sink, and the electric control board is thermally connected to the heat sink.

[0015] 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 to the inside of the box. 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.

[0016] 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.

[0017] 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.

[0018] In some embodiments of the present application, a wind shield is further provided on the top of the electrical control box assembly, the wind shield is arranged outside the first heat dissipation channel and opposite to the first air outlet, and 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.

[0019] 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.

[0020] In some embodiments of the present application, the electrical control box assembly is further provided with an air guide cover, which is arranged on the outside of the second heating element. 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. The second heat dissipation channel is connected to the exhaust channel through the third air outlet.

[0021] In some embodiments of the present application, the fan assembly is arranged above the electric control box assembly, and parts of the exhaust duct are respectively provided above and below the electric control box assembly.

[0022] 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.

[0023] 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

[0024] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. Throughout the drawings, the same reference numerals are used to denote the same components.

[0025] FIG1 is a schematic structural diagram of an air conditioner outdoor unit according to an embodiment of the present application;

[0026] FIG2 is a schematic diagram of the disassembled structure of an air conditioner outdoor unit according to an embodiment of the present application;

[0027] FIG3 is a schematic diagram of the AA cross-sectional structure of an air conditioner outdoor unit according to an embodiment of the present application;

[0028] FIG4 is an enlarged structural diagram of part B of an air conditioner outdoor unit according to an embodiment of the present application;

[0029] FIG5 is an enlarged structural diagram of part C of an air conditioner outdoor unit according to an embodiment of the present application;

[0030] FIG6 is a partial structural diagram of an electric control box assembly according to an embodiment of the present application;

[0031] FIG7 is an enlarged structural diagram of portion D of an electric control box assembly according to one embodiment of the present application;

[0032] FIG8 is a schematic diagram of the enlarged structure of portion E of the electric control box assembly according to one embodiment of the present application.

[0033] The reference numerals in the accompanying drawings represent as follows: 1. Air conditioner outdoor unit; 10. Box body; 11. Air vent; 12. Open end; 20. Outdoor heat exchanger; 30. Compressor; 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; 45. Air guide hood; 451. Second air inlet; 452. Third air outlet; 453. Air guide plate; 46. Lower side panel; 461. First air inlet; 462. Protruding end; 47. Wind shield; 471. Second air outlet; 48. Mounting frame; 49. Water shield; 50. Fan assembly. DETAILED DESCRIPTION

[0034] The following describes exemplary embodiments of the present application in more detail with reference to the accompanying drawings. Although 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. Instead, these embodiments are provided 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.

[0035] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only 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 "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence 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 to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0036] 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 otherwise, 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.

[0037] For ease of description, spatially 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 figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "below" or "below" another element or feature would then be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be otherwise oriented (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein are interpreted accordingly.

[0038] Currently, the heat dissipation method for the electronic control box of the air conditioner outdoor unit is to conduct the heat from the power devices on the electronic control board through a radiator, and then remove it through air convection exchange within the chassis. However, under high-temperature and high-load cooling conditions, the air temperature within the chassis is usually high, and the air flow rate flowing into the electronic control box and passing through the heat exchanger is low. As a result, this cooling method cannot meet the heat dissipation requirements of the power devices, affecting the performance of the electronic devices.

[0039] In order to solve the problem that the power devices in the electronic control box cannot be effectively dissipated, 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 rate in the electronic control box assembly, thereby increasing the heat dissipation speed of the power devices in the electronic control box assembly.

[0040] For the convenience of description, in the embodiments of the present application, only the air conditioner as a central air conditioner is used as an example for illustration.

[0041] Central air conditioning includes an indoor unit and an outdoor unit. The outdoor unit is usually installed outdoors, and the indoor unit is usually installed indoors. The outdoor unit and the indoor unit work together to achieve the cooling, heating, dehumidification and air purification functions of the air conditioner to achieve comfortable air quality.

[0042] In a central air conditioner, there is typically one outdoor unit and multiple indoor units. Each indoor unit is equipped with one or more air outlets to discharge cooled, heated, dehumidified, or purified air into the room. The indoor unit typically houses an indoor heat exchanger, while the outdoor unit typically houses an outdoor heat exchanger. These two units are typically connected by a refrigerant pipe, allowing refrigerant to circulate between them.

[0043] 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, taking 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 that has released heat and cooled down, 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.

[0044] 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 outdoor unit of the air conditioner 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 indoor unit of the air conditioner flowing through the condenser, so that the air in the indoor unit of the air conditioner takes away the heat carried by the condenser and is discharged from the indoor unit of the air conditioner to the room outside the indoor unit of the air conditioner, so that the indoor unit blows hot air, thus realizing the heating process.

[0045] As shown in Figures 1 to 3, in some embodiments of the present application, an air conditioner outdoor unit 1 includes a housing 10, wherein the housing 10 has an installation cavity formed therein for installing various electrical components, 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 within the housing 10, the air conditioner outdoor unit 1 also includes a fan assembly 50. The fan assembly 50 is connected to the installation cavity and forms an exhaust passage. Through the action of the fan assembly 50, the heat generated by the various electrical components within the housing 10 is discharged to the outside of the housing 10. The fan assembly 50 can be disposed outside the housing 10 and placed above the housing 10, or it can be disposed inside the housing 10 and arranged near the top. The fan assembly 50 is placed above the housing 10 or on the top of the housing 10, and an air outlet is formed on the top of the fan assembly 50, so that the fan assembly 50 can discharge air toward the top of the housing 10, and the air flow will not directly affect the operators around the housing 10, thereby reducing the occurrence of accidental injuries to the operators. The housing 10 is provided with a plurality of air holes 11. When the fan assembly 50 is in operation, air outside the housing 10 can enter the interior of the housing 10 through the air holes 11 and form an airflow, thereby cooling and dissipating heat for the electrical components in the housing 10.

[0046] 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 is used to control the various electrical components. The electric control box assembly 40 is located on the side wall of the housing 10 and is detachably connected to the housing 10, thereby facilitating disassembly, assembly, and maintenance of the electric control box assembly 40. Specifically, the side wall of the housing 10 is provided with an open end 12, and the electric control box assembly 40 is located at the open end 12 and is used to shield the open end 12. By removing the electric control box assembly 40, the electrical components inside the housing 10 can be inspected or replaced. Among them, most of the electrical components inside the housing 10 are 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.

[0047] As shown in Figures 3 and 4, 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 heating element is provided in the first heat dissipation channel 411, and a second heating element is provided in the second heat dissipation channel 412. The electric control box assembly 40 is also provided with a first air inlet 461 and a second air inlet 451. 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.

[0048] 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 this 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.

[0049] 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 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 connected to the electric control board 42 by a connector, or the heat sink 43 and the electric control board can be spaced apart and thermally connected by airflow between them.

[0050] 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 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 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 thereby increasing the heat dissipation speed of the power devices in the electric control box assembly 40.

[0051] In combination with Figures 2 to 4, in some embodiments of the present application, the electrical control box assembly 40 also includes a mounting plate 41, and the 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 heating element and the second heating element are respectively connected to the mounting plate 41.

[0052] Specifically, the mounting plate 41 includes a first plate surface and a second plate surface disposed opposite each other, wherein the first plate surface is disposed toward the exterior of the housing 10, and the second plate surface is disposed toward the interior of the housing 10. The electrical control box assembly 40 also includes a cover plate 44 and an air scoop 45. The cover plate 44 is disposed opposite the first plate surface, forming a first heat dissipation channel 411 therebetween. The air scoop 45 is disposed opposite the second plate surface, forming a second heat dissipation channel 412 therebetween. The cover plate 44 is disposed on the side of the first plate surface facing the exterior of the housing 10. When the electrical control box assembly 40 is mounted to the housing 10, the cover plate 44 forms a portion of the housing 10 surface and serves to shield the open end 12. When components within the electrical control box assembly 40 need to be inspected or replaced, the entire electrical control box assembly 40 need not be disassembled; only the cover plate 44 needs to be removed to inspect and replace the internal components of the electrical control box assembly 40. The air guide cover 45 is arranged inside the box body 10 and is used to separate the second heat dissipation channel 412 from the exhaust channel inside the box body 10, so that more air flow outside the box body 10 can enter the second heat dissipation channel 412, thereby improving the heat dissipation effect of the heat sink 43.

[0053] As shown in Figures 3 and 4, 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.

[0054] Specifically, the direction indicated by the black arrow in FIG4 is the direction of airflow within the electrical control box assembly 40. Because 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 is directed toward one side of the air guide hood 45 by the airflow from the first air inlet 461, thereby reducing the amount of airflow within the exhaust channel that enters the first heat dissipation channel 411 through the third air inlet 413. Consequently, the airflow entering the first heat dissipation channel 411 is entirely from the outside of the housing 10, or the majority of the airflow entering the first heat dissipation channel 411 is from the outside of the housing 10, thereby improving the heat dissipation effect on the electrical control board 42 within the first heat dissipation channel 411.

[0055] 3 and 4 , in some embodiments of the present application, the second air inlet 451 , the first air inlet 461 , and the third air inlet 413 are arranged in sequence from bottom to top along the vertical direction.

[0056] Since the second air inlet 451 is arranged below the first air inlet 461, after the air flow in the exhaust channel enters the middle electronic control box assembly 40 through the second air inlet 451, it moves toward the side of the air guide cover 45 under the action of the air flow entering the electronic control box assembly 40 from the first air inlet 461. At the same time, the air flow entering the electronic control box assembly 40 from the first air inlet 461 moves toward the second heat dissipation channel 412 under the action of the air flow 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.

[0057] 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, will bend upward and then enter 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.

[0058] As shown in conjunction with FIG. 3 and FIG. 5 , 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 .

[0059] 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.

[0060] As shown in Figures 3 and 5, in some embodiments of the present application, a wind shield 47 is further provided on the top of the electrical 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.

[0061] Specifically, a second air outlet 471 is formed between the bottom of the windshield 47 and the mounting plate 41. The second air outlet 471 is located below the first air outlet 414. Airflow from the first heat dissipation channel 411 through the first air outlet 414 moves toward the second air outlet 471 under the action of the windshield 47 and is discharged into the exhaust channel through the second air outlet 471, thereby forming a curved exhaust flow path, specifically a 90° bend angle. This prevents insects or rainwater from entering the first heat dissipation channel 411 through the first air outlet 414. The bottom of the windshield 47 has a curved section that bends toward the mounting plate 41, thereby gradually reducing the area of ​​the airflow path from the first air outlet 414 toward the second air outlet 471, further preventing insects or rainwater from entering the first heat dissipation channel 411 through the first air outlet 414.

[0062] 3 to 8 , 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.

[0063] Specifically, the bottom of the mounting plate 41 is provided with a convex plate extending toward the exterior of the housing 10. The surface of the convex plate is provided with a plurality of hole-like structures, which together form a third air inlet 413. These hole-like structures can be strip-shaped, circular, directional, 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 a first air outlet 414. These hole-like structures can be strip-shaped, circular, directional, 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.

[0064] As shown in FIG3 , 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 .

[0065] 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. By arranging the third air outlet 452 and the second air outlet 471 relative to each other, the airflow discharged from the second air outlet 471 and the airflow discharged from the third air outlet 452 can move toward the exhaust channel together under the interaction, and thus be discharged to the outside of the box 10 through the exhaust channel together.

[0066] 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, thereby guiding the airflow discharged from the second heat dissipation channel 412 to move toward the exhaust channel.

[0067] As shown in Figures 3, 4, and 6, in some embodiments of the present application, the electric control box assembly 40 further includes a lower side panel 46, which is disposed below the electric control board 42. The lower side panel 46 passes through a first air inlet 461. The first air inlet 461 may be a louver structure, thereby increasing the air intake of the electric control box assembly 40. Alternatively, the first air inlet 461 may include a plurality of hole-like structures, thereby preventing mosquitoes or rainwater from entering the interior of the housing 10 through the first air inlet. The top of the lower side panel 46 is further provided with an extension end 462 extending toward the exterior of the housing 10. The extension end 462 is used to cover the opening between the cover plate 44 and the bottom of the mounting plate 41.

[0068] 3 and 6 , in some embodiments of the present application, the electric control box assembly 40 further includes a mounting bracket 48 , which is disposed on the mounting plate 41 and below the electric control board 42 for fixing some power devices.

[0069] As shown in Figures 3 and 6, in some embodiments of the present application, the electrical control box assembly 40 also includes a water baffle 49, which is arranged on the top of the mounting plate 41 and is used to shield the electrical control board 42 above the electrical control board 42, thereby reducing the occurrence of water passing through the top of the electrical control board 42 and falling onto the electrical control board 42.

[0070] 1 to 3 , 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 .

[0071] By setting up 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 up a partial exhaust channel above the electrical control box assembly 40, the exhaust airflow of the first heat dissipation channel 411 and the second heat dissipation channel 412 can be guided into the exhaust channel and quickly discharged 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.

[0072] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. An air conditioner outdoor unit, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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, wherein: 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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