Outdoor unit of air conditioner

Abstract

The utility model provides an outdoor unit of an air conditioner, and relates to the field of air conditioners. The outdoor unit comprises a machine shell and an electric control box arranged in the machine shell, the machine shell comprises a side plate, and the side plate is provided with an access hole and a first air inlet located above the access hole; a box body of the electric control box is provided with an element cavity and a heat dissipation channel which are separated by a partition wall of the box body, and the element cavity is opposite to the access hole; the horizontal section of the heat dissipation channel is located above the element cavity, and the air inlet end of the heat dissipation channel is arranged opposite to the first air inlet; the side plate is further detachably provided with an electric appliance cover plate, the electric appliance cover plate seals the access hole, an inner extension plate is arranged on the inner side of the electric appliance cover plate, the inner extension plate extends into the electric control box from the access hole, extends obliquely upwards and abuts against the end, close to the side plate, of the partition wall, and the front end of the inner extension plate abuts against the front wall of the box body. The rear end of the inner extending plate abuts against the rear wall of the box body. According to the outdoor unit, the electric control box can be conveniently overhauled, the heat dissipation effect of the electric control box is good, insect prevention can be effectively achieved, and cleaning is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioners, and in particular to an outdoor unit of an air conditioner. Background Art

[0002] The casing of an air conditioner's outdoor unit houses a heat exchanger, fan assembly, compressor, and electrical control box. To improve heat dissipation from the control box and ensure stable operation of the PCBs and other components within, a heat dissipation channel is installed above the component cavity housing the PCBs. The air inlet of the channel faces the heat dissipation inlet on the casing. However, this makes it easy for flying insects to enter the channel through the heat dissipation inlet and into the casing, adversely affecting the operation of the outdoor unit. Utility Model Content

[0003] The purpose of the utility model is to provide an air conditioner outdoor unit to solve the technical problem in the prior art that flying insects and the like can easily enter the heat dissipation channel from the heat dissipation air inlet of the air conditioner outdoor unit and then enter the casing through the heat dissipation channel.

[0004] The vents are located in the air conditioning unit and the heat dissipation channel is located in the heat dissipation channel.

[0005] The air conditioner outdoor unit provided by the utility model can produce the following beneficial effects:

[0006] The air conditioner outdoor unit provided by the present invention allows access to the electrical control box for maintenance or wiring operations through the inspection port after the electrical cover is removed. When the electrical control box is in operation, air entering the heat dissipation channel from the first air inlet on the side panel removes heat from the top wall, i.e., the partition wall, of the component cavity as it flows through the heat dissipation channel, thereby dissipating heat and cooling the partition wall and the component cavity. Because the inner extension plate disposed on the inner side of the electrical cover extends obliquely upward and abuts the front end of the partition wall between the heat dissipation channel and the component cavity, the cross-sectional area of ​​the heat dissipation channel is reduced along the air inlet direction, effectively preventing flying insects from entering the housing through the heat dissipation channel. Furthermore, the angle formed by the obliquely upward inner extension plate and the side panel of the housing, as well as the turbulent air pressure above, facilitates the killing of flying insects by trapping them. Furthermore, the obliquely upward extension of the inner extension plate facilitates the collection of fallen flying insects, making it easier to clean them after the electrical cover is removed.

[0007] In summary, the air conditioner outdoor unit provided by the present invention arranges the electric control box on the side panel of the casing and provides an inspection port on the side panel, which makes it very convenient to inspect and repair the electric control box; by providing a heat dissipation channel, the heat dissipation effect of the electric control box is very good; by providing an inner extension plate in the electrical cover, it can effectively prevent insects and facilitate cleaning.

[0008] Furthermore, the upper wall of the box body forms the top wall of the heat dissipation channel. In the direction opposite to the air inlet direction, the upper wall is sequentially provided with a lower extension section extending obliquely downward and a horizontal extension section extending horizontally. The horizontal extension section connects to the inner wall of the side panel. This arrangement creates a tortuous heat dissipation channel, making it difficult for flying insects to pass through.

[0009] Furthermore, the top of the inner extension plate is not lower than the horizontal extension section, and a channel opening is formed between the inner extension plate and the lower extension section. With this technical solution, air entering the heat dissipation channel needs to flow upward, passing between the lower extension section and the inner extension plate. This makes the channel more tortuous, making it more difficult for flying insects to pass through.

[0010] Furthermore, the partition wall extends obliquely upward in a direction toward the inner extension plate and abuts against the inner extension plate.

[0011] In this technical solution, the partition wall is tilted, causing the cross-sectional area of ​​the horizontal section of the heat dissipation channel to first decrease and then increase along the air inlet direction. The initial decrease in cross-sectional area helps to hinder the advancement of flying insects, while the subsequent increase in cross-sectional area helps to increase the air intake volume and reduce the air intake rate, thereby facilitating sufficient heat exchange between the gas in the heat dissipation channel and the partition wall, thereby improving heat dissipation efficiency. The outer end of the partition wall abuts the inner extension plate, allowing the inner extension plate to effectively prevent flying insects and water vapor from entering the component cavity, thereby providing effective protection for the component cavity.

[0012] Furthermore, along the direction away from the main body of the electrical appliance cover, the inner extension plate includes a first plate and a second plate arranged in sequence, and the upward inclination angle of the second plate is greater than the upward inclination angle of the first plate.

[0013] This solution allows the second plate to be more upright, providing a better barrier against flying insects and the like. It also effectively reduces the distance between the inner extension plate and the side plates, minimizing space usage. Furthermore, the first plate's relatively shallow inclination angle makes it easier to catch falling flying insects.

[0014] Furthermore, the electrical cover is provided with an upper flange parallel to the side panels, the upper flange being located outside and connected to the side panels, and an insect exit being defined at the bottom of the upper flange, the insect exit being lower than the top edge of the inspection opening. This arrangement allows insects that enter between the inner extension plate and the side panels of the housing to escape through the insect exit.

[0015] Furthermore, there are multiple flying insect outlets, and the multiple flying insect outlets are evenly arranged in the horizontal direction. Such an arrangement can effectively prevent flying insects and other foreign objects from entering the housing through the flying insect outlets.

[0016] Furthermore, a shutter structure or an air inlet grille structure is provided at the first air inlet.

[0017] Furthermore, from top to bottom, the bottom wall of the electric control box, which is opposite the side panel, is tilted toward the side panel. That is, the bottom end of the bottom wall of the electric control box, which is opposite the side panel, is close to the side panel, while the top end is away from the side panel. Thus, the top end of the electric control box, which is away from the side panel, can fully utilize the space at the top of the casing, while the bottom end occupies relatively little space. This frees up more space for accommodating structures such as the compressor and the piping between it and the heat exchanger, thereby making the spatial layout within the casing more reasonable, improving the utilization rate of the casing space, and effectively shortening the left-right length of the casing, reducing the overall volume and saving costs.

[0018] Furthermore, the heat dissipation channel also includes an oblique straight section connected to the horizontal section. The oblique straight section is located on the side of the element cavity away from the side plate, and the channel wall of the oblique straight section opposite the bottom wall is parallel to the bottom wall. With this technical solution, the bottom end of the oblique straight section of the heat dissipation channel can also free up space, effectively avoiding structures such as the compressor or the piping between it and the heat exchanger.

[0019] The electrical control box further includes a cover, which is mounted on the box body and seals the opening of the component cavity. The cover can be opened at the inspection port. This technical solution protects the component cavity housing the PCB from insects and moisture. When maintenance is required, the electrical cover can be removed and then opened to perform wiring or maintenance operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0021] Figure 1 A schematic structural diagram of an air conditioner outdoor unit provided by an embodiment of the present utility model;

[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 A front cross-sectional view of a partial structure of an air conditioner outdoor unit provided by an embodiment of the present utility model;

[0024] Figure 4 for Figure 3 Enlarged view of point B in the middle.

[0025] Description of reference numerals:

[0026] 110-right side panel; 111-inspection port; 112-first air inlet; 113-louver structure; 120-base;

[0027] 200 - electrical control box; 201 - component cavity; 202 - heat dissipation channel; 203 - horizontal section; 204 - oblique straight section; 220 - rear wall; 230 - upper wall; 231 - lower extension section; 232 - horizontal extension section; 240 - partition wall; 250 - lower wall; 260 - bottom wall;

[0028] 270-PCB board; 280-radiator;

[0029] 300 - electrical cover; 310 - inner extension plate; 311 - first plate; 312 - second plate; 320 - top plate; 321 - upper flange; 322 - insect outlet; 331 - second air inlet; 332 - air inlet cavity; 340 - handle;

[0030] 400-Pipeline. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned objects, features and advantages of the present invention more clearly understood, the following describes in detail the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] First of all, it should be noted that in the drawings, the directions indicated by the arrows "ab" are left and right directions, the directions indicated by the arrows "cd" are front and rear directions, and the directions indicated by the arrows "ef" are up and down directions.

[0033] This embodiment provides an outdoor unit of an air conditioner, such as Figures 1 to 4 As shown, the air conditioner outdoor unit includes a casing and an electric control box 200 disposed in the casing. The casing includes a side panel, which is provided with an inspection port 111 and a first air inlet 112. The first air inlet 112 is located above the inspection port 111. The electric control box 200 includes a box body, which is provided with a component cavity 201 and a heat dissipation channel 202. The component cavity 201 and the inspection port 111 are disposed opposite to each other. The horizontal section 203 of the heat dissipation channel 202 is located above the component cavity 201. The air inlet end of the heat dissipation channel 202 is arranged opposite to the first air inlet 112; the side panel can also be detachably provided with an electrical cover 300, the electrical cover 300 closes the inspection port 111, and an inner extension plate 310 is provided on the inner side of the electrical cover 300, the inner extension plate 310 extends from the inspection port 111 into the electric control box 200, extends obliquely upward and abuts against one end of the partition wall 240 close to the side panel, the front end of the inner extension plate 310 abuts against the front wall of the box body, and the rear end of the inner extension plate 310 abuts against the rear wall 220 of the box body.

[0034] In the air conditioner outdoor unit provided in this embodiment, after the electrical cover 300 is removed, the electrical control box 200 can be inspected or wired through the inspection port 111. When the electrical control box 200 is in operation, air entering the heat dissipation channel 202 from the first air inlet 112 on the side panel removes heat from the top wall of the component cavity 201, i.e., the partition wall 240, as it flows through the heat dissipation channel 202, thereby dissipating heat and cooling the partition wall 240 and the component cavity 201. Because the inner extension plate 310 disposed on the inner side of the electrical cover 300 extends upward at an angle and abuts the front end of the partition wall 240 between the heat dissipation channel 202 and the component cavity 201, the cross-sectional area of ​​the heat dissipation channel 202 is reduced along the air inlet direction, effectively preventing flying insects from entering the housing through the heat dissipation channel 202. Furthermore, the angled space formed by the upwardly angled inner extension plate 310 and the side panel of the housing, as well as the turbulent air pressure above, facilitates trapping and killing flying insects. In addition, the configuration of the inner extension plate 310 extending obliquely upward is also conducive to collecting and storing fallen flying insects, thereby making it easy to clean up the flying insects after the electrical appliance cover 300 is removed.

[0035] In summary, the air conditioner outdoor unit provided in this embodiment has the electric control box 200 arranged on the side panel of the casing and an inspection port 111 provided on the side panel, which makes it very convenient to inspect and repair the electric control box 200; by providing the heat dissipation channel 202, the heat dissipation effect of the electric control box 200 is very good; by providing the inner extension plate 310 on the electrical cover 300, it can effectively prevent insects and facilitate cleaning.

[0036] More specifically, in this embodiment, Figure 4 As shown, the box body of the electric control box 200 includes a front wall (not shown) and a rear wall 220 that are spaced and relatively arranged along the front-to-back direction, and an upper wall 230, a partition wall 240 and a lower wall 250 that are arranged in sequence along the upper-lower direction. The front wall is connected to the front ends of the upper wall 230, the partition wall 240 and the lower wall 250, and the rear wall 220 is connected to the rear ends of the three. The side of the front wall, the rear wall 220, the partition wall 240 and the lower wall 250 away from the side plate is connected to the bottom wall 260. In this way, the front wall, the partition wall 240, the rear wall 220, the lower wall 250 and the bottom wall 260 together form the component cavity 201; and the top of the front wall, the upper wall 230, the top of the rear wall 220 and the partition wall 240 together form the horizontal section 203 of the heat dissipation channel 202.

[0037] Specifically, in this embodiment, Figure 4 As shown, the upper wall 230 of the box body forms the top wall of the heat dissipation channel 202. Along the direction opposite to the air inlet, the upper wall 230 is provided with a lower extension section 231 extending diagonally downward and a horizontal extension section 232 extending horizontally. The horizontal extension section 232 connects to the inner wall of the side panel. This arrangement creates a tortuous heat dissipation channel 202, making it difficult for flying insects to pass through.

[0038] Specifically, in this embodiment, continue as Figure 4 As shown, the top of the inner extension plate 310 is higher than the horizontal extension section 232 and forms a channel opening with the lower extension section 231. This means that air entering the heat dissipation channel 202 must flow upward, passing between the lower extension section 231 and the inner extension plate 310. This makes the channel more tortuous, making it more difficult for flying insects to pass through. Of course, in other embodiments of the present application, the top of the inner extension plate 310 can also be flush with the horizontal extension section 232.

[0039] Specifically, in this embodiment, continue as Figure 4As shown, the partition wall 240 extends obliquely upward toward the inner extension plate 310 and abuts against the inner extension plate 310. In this configuration, the partition wall 240 is tilted, causing the cross-sectional area of ​​the horizontal section 203 of the heat dissipation channel 202 to first decrease and then increase along the air inlet direction. The initial decrease in cross-sectional area helps prevent flying insects from continuing to advance, while the subsequent increase in cross-sectional area helps increase the air intake volume and reduce the air intake rate, thereby facilitating sufficient heat exchange between the gas in the heat dissipation channel 202 and the partition wall 240, thereby improving heat dissipation efficiency. The outer end of the partition wall 240 abuts against the inner extension plate 310, allowing the inner extension plate 310 to effectively prevent flying insects and water vapor from entering the component cavity 201, thereby providing good protection for the component cavity 201.

[0040] Specifically, in this embodiment, continue as Figure 4 As shown, the inner extension plate 310 comprises a first plate 311 and a second plate 312, arranged in sequence, away from the main body of the appliance cover 300. The second plate 312 is tilted upward at a greater angle than the first plate 311. This arrangement allows the second plate 312 to be more vertical, effectively blocking flying insects and the like. It also effectively reduces the distance between the inner extension plate 310 and the side panels, thereby minimizing space usage. Furthermore, the first plate 311 has a relatively shallow tilt angle, making it more suitable for catching fallen flying insects.

[0041] Specifically, in this embodiment, Figure 2 and Figure 4 As shown, the electrical cover 300 is further provided with an upper flange 321 parallel to the side panels. The upper flange 321 is located outside the side panels and connected to the side panels. The bottom of the upper flange 321 is provided with an insect outlet 322, which is lower than the top edge of the inspection opening 111. This arrangement allows insects that enter between the inner extension plate 310 and the side panels of the housing to escape through the insect outlet 322.

[0042] More specifically, in this embodiment, Figures 1 to 4 As shown, the electrical appliance cover 300 is in an outwardly convex shape, and has a top plate 320 and a bottom plate. The inner extension plate 310 is connected to the top plate 320 , and the upper flange 321 is provided on the top plate 320 .

[0043] More specifically, in this embodiment, Figure 2 As shown, there are multiple flying insect outlets 322, and the multiple flying insect outlets 322 are evenly arranged in the horizontal direction. Such an arrangement can effectively prevent flying insects and other foreign objects from entering the housing through the flying insect outlets 322.

[0044] Specifically, in this embodiment, continue as Figure 2As shown, a shutter structure 113 is provided at the first air inlet 112, which can effectively prevent rainwater and other foreign matter from entering the heat dissipation channel 202. Of course, in other embodiments of the present application, an air inlet grille structure or other structure may also be provided at the first air inlet 112.

[0045] Specifically, in this embodiment, Figure 4 As shown, along the top-down direction, the bottom wall 260 of the electric control box 200 opposite to the side panel is tilted toward the side panel, that is, the bottom end of the bottom wall 260 of the electric control box 200 opposite to the side panel is close to the side panel and the top end is away from the side panel. Thus, the top end of the side of the electric control box 200 away from the side panel can make full use of the space at the top of the casing, and the space occupied by the bottom end is relatively small, thereby freeing up more space for accommodating structures such as the compressor and the pipeline 400 between it and the heat exchanger, making the space layout in the casing more reasonable, and improving the utilization rate of the space in the casing. It can also effectively shorten the left and right lengths of the casing, reduce the volume of the entire machine, and save costs.

[0046] Specifically, in this embodiment, continue as Figure 4 As shown, the heat dissipation channel 202 also includes an oblique straight section 204 connected to the horizontal section 203. The oblique straight section 204 is located on the side of the element cavity 201 away from the side panel, and the channel wall of the oblique straight section 204 opposite the bottom wall 260 is parallel to the bottom wall 260. More specifically, the end of the upper wall 230 away from the side panel first extends away from the bottom wall 260 to form an extended section. Then, the three sides of the extended section not connected to the upper wall 230 extend downward, thereby forming the oblique straight section 204 of the heat dissipation channel 202 together with the bottom wall 260. This configuration also frees up space at the bottom end of the oblique straight section 204 of the heat dissipation channel 202, effectively avoiding structures such as the compressor or the pipeline 400 between it and the heat exchanger.

[0047] Specifically, in this embodiment, continue as Figure 4 As shown, the PCB 270 is provided with a heat sink 280, and the bottom wall 260 is provided with a relief opening. The heat sink 280 extends through the relief opening and at least partially extends into the oblique straight section 204. In this arrangement, outside air enters the heat dissipation channel 202 from the air inlet end of the heat dissipation channel 202 through the first air inlet 112 on the side panel, exchanges heat with the heat sink 280 in the heat dissipation channel 202, and is then discharged from the air outlet end of the heat dissipation channel 202. The heat exchange between the air in the heat dissipation channel 202 and the heat sink 280 accelerates the heat dissipation of the heat sink 280, thereby improving the heat dissipation efficiency of the heat sink 280 for the PCB 270 and the electronic components thereon.

[0048] Specifically, in this embodiment, Figure 3As shown, the electrical cover 300 is provided with a second air inlet 331, which communicates with the component cavity 201; the box body is provided with an air outlet (not shown), which communicates with the component cavity 201 and the heat dissipation channel 202. In this arrangement, external air enters the component cavity 201 through the second air inlet 331 on the electrical cover 300 and the inspection port 111 on the side panel, exchanges heat with the PCB board 270 and the electronic components thereon, and is then discharged through the air outlet of the component cavity 201. The air in this channel directly exchanges heat with the PCB board 270 and the electronic components thereon within the component cavity 201, thereby quickly reducing the temperature of the PCB board 270 and the electronic components thereon.

[0049] Specifically, in this embodiment, the air outlet is disposed at the top of the bottom wall 260. With this arrangement, if rainwater or the like enters the heat dissipation channel 202 through the first air inlet 112 on the side panel, it is unlikely to enter the component cavity 201 through the air outlet. However, at the same time, the heated and rising air in the component cavity 201 can relatively easily enter the oblique straight section 204 of the heat dissipation channel 202 and, after exchanging heat with the radiator 280, be discharged from the air outlet end of the heat dissipation channel 202. This improves the utilization rate of the gas, thereby facilitating improved heat dissipation efficiency and enhancing the heat dissipation effect.

[0050] It should be noted here that in other embodiments of the present application, the air outlet is not limited to being set at the top of the bottom wall 260, but can also be set at positions such as the partition wall 240, the front wall or the rear wall 220 of the box body. Moreover, the air outlet is not limited to being set at one position, and the air outlet can be set at multiple positions, for example: the bottom wall 260 is provided with a first air outlet, the partition wall 240 is provided with a second air outlet, the front wall is provided with a third air outlet, and so on.

[0051] Specifically, in this embodiment, combined with Figure 3 and Figure 4As shown, the electrical cover 300 is fixed to the side panel and encloses an air inlet cavity 332 therebetween. The inspection port 111 is connected to the air inlet cavity 332. A second air inlet 331 is provided on the bottom panel of the electrical cover 300. External air enters the air inlet cavity 332 through the second air inlet 331 and then enters the component cavity 201 through the inspection port 111. In this arrangement, external air enters the air inlet cavity 332 through the second air inlet 331 at the bottom of the electrical cover 300, passes through the inspection port 111, and then enters the component cavity 201. After cooling the PCB board 270 and the electrical components thereon within the component cavity 201, the air enters the heat dissipation channel 202 through the air outlet. An air inlet cavity 332 is enclosed between the electrical cover 300 and the side panel, providing an air inlet channel for external gas to enter the component cavity 201, and the second air inlet 331 is opened on the bottom plate of the electrical cover 300, which can effectively prevent rainwater and other foreign matter from entering the air inlet cavity 332 through the second air inlet 331.

[0052] Specifically, in this embodiment, the electrical control box 200 may also include a cover. The cover is mounted on the box body and seals the opening of the component chamber 201. The cover can be opened at the inspection port 111. This arrangement protects the component chamber 201, where the PCB 270 is located, from insects and moisture. When maintenance is required, the electrical cover 300 is removed and then opened to perform wiring or maintenance operations.

[0053] Specifically, in this embodiment, Figures 1 to 4 As shown, the electrical appliance cover 300 is provided with a handle 340. Under this arrangement, the entire air conditioner outdoor unit can be easily lifted and moved by the handle 340.

[0054] Specifically, in this embodiment, Figure 3 As shown, the interior of the casing is an integrated cavity, that is, the air-conditioning outdoor unit provided in this embodiment cancels the setting of the wind-proof vertical plate, and the space inside the casing is not divided into two chambers. This not only reduces costs and simplifies the assembly process, but also helps to make more full use of the space inside the outdoor unit and reduce the overall size of the outdoor unit.

[0055] Because of this, the electrical control box 200 can no longer be placed on the wind-blocking vertical plate. Therefore, in this embodiment, it is placed on the side panel of the casing. Furthermore, in this embodiment, the electrical control box 200 is placed on the right side panel 110 of the casing, and the electrical control box 200 is fixedly connected to the inner wall of the right side panel 110. The inspection port 111 and the first air inlet 112 are both provided on the right side panel 110. In addition, the heat exchanger and fan assembly of the air conditioner outdoor unit are located on the left side of the integrated cavity, while the compressor of the air conditioner outdoor unit is located on the right side of the integrated cavity together with the electrical control box 200. The heat exchanger, fan assembly, and compressor are placed on the base 120 of the casing directly or through a bracket.

[0056] However, it should be noted that in other embodiments of the present application, the electrical control box 200 may also be located on the left side panel of the housing, with the electrical control box 200 fixedly connected to the inner wall of the left side panel; the inspection port 111 and the first air inlet 112 are both located on the left side panel. Furthermore, the heat exchanger and fan assembly of the air conditioner outdoor unit are located on the right side of the integrated cavity, while the compressor of the air conditioner outdoor unit and the electrical control box 200 are both located on the left side of the integrated cavity.

[0057] Here, it should also be noted that, in other embodiments of the present application, a wind-blocking vertical plate may also be provided inside the casing, while the electrical control box 200 is still provided on the side panel of the casing.

[0058] Finally, it should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprise," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0059] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to the embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An air conditioner outdoor unit, characterized in that: The invention comprises a casing and an electric control box (200) arranged in the casing, wherein the casing comprises a side panel, the side panel is provided with an inspection port (111) and a first air inlet (112), and the first air inlet (112) is located above the inspection port (111); The electric control box (200) comprises a box body, wherein the box body is provided with a component cavity (201) and a heat dissipation channel (202), which are separated by a partition wall (240) of the box body, and the component cavity (201) is arranged opposite to the inspection port (111); the horizontal section (203) of the heat dissipation channel (202) is located above the component cavity (201), and the air inlet end of the heat dissipation channel (202) is arranged opposite to the first air inlet (112); The side panel is further provided with an electrical appliance cover (300) in a detachable manner. The electrical appliance cover (300) closes the inspection port (111), and an inner extension plate (310) is provided on the inner side of the electrical appliance cover (300). The inner extension plate (310) extends from the inspection port (111) into the electric control box (200), extends obliquely upward, and abuts against an end of the partition wall (240) close to the side panel. The front end of the inner extension plate (310) abuts against the front wall of the box body, and the rear end of the inner extension plate (310) abuts against the rear wall (220) of the box body.

2. The air conditioner outdoor unit according to claim 1, characterized in that: The upper wall (230) of the box body forms the top wall of the heat dissipation channel (202); in the opposite direction of the air inlet direction, the upper wall (230) is sequentially provided with a lower extension section (231) extending obliquely downward and a horizontal extension section (232) extending horizontally; the horizontal extension section (232) is connected to the inner wall of the side plate.

3. The air conditioner outdoor unit according to claim 2, characterized in that: The top end of the inner extension plate (310) is not lower than the horizontal extension section (232), and a passage opening is formed between the top end of the inner extension plate (310) and the lower extension section (231).

4. The air conditioner outdoor unit according to claim 3, characterized in that: The partition wall (240) extends obliquely upward in a direction toward the inner extension plate (310) and abuts against the inner extension plate (310).

5. The air conditioner outdoor unit according to any one of claims 1 to 4, characterized in that: Along the direction away from the main body of the electrical appliance cover (300), the inner extension plate (310) includes a first plate (311) and a second plate (312) arranged in sequence, and the upward inclination angle of the second plate (312) is greater than the upward inclination angle of the first plate (311).

6. The air conditioner outdoor unit according to any one of claims 1 to 4, characterized in that: The electrical appliance cover (300) is further provided with an upper flange (321) parallel to the side panel, the upper flange (321) is located outside the side panel and connected to the side panel, and a flying insect outlet (322) is provided at the bottom of the upper flange (321), and the flying insect outlet (322) is lower than the top edge of the inspection port (111).

7. The air conditioner outdoor unit according to any one of claims 1 to 4, characterized in that: A shutter structure (113) or an air inlet grille structure is provided at the first air inlet (112).

8. The air conditioner outdoor unit according to any one of claims 1 to 4, characterized in that: In a direction from top to bottom, the bottom wall (260) of the electric control box (200) opposite to the side plate is tilted toward the direction close to the side plate.

9. The air conditioner outdoor unit according to claim 8, characterized in that: The heat dissipation channel (202) further comprises an oblique straight section (204) communicating with the horizontal section (203); the oblique straight section (204) is located on a side of the component cavity (201) away from the side plate; and a channel wall of the oblique straight section (204) opposite to the bottom wall (260) is parallel to the bottom wall (260).

10. The air conditioner outdoor unit according to any one of claims 1 to 4, characterized in that: The electric control box (200) further comprises a box cover, which is arranged on the box body and closes the opening of the component cavity (201), and the box cover can be opened at the inspection port (111).

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