CN219415016U - Air conditioner outdoor unit and air conditioner - Google Patents

Abstract

The application provides an air conditioner outdoor unit and an air conditioner, wherein an electric control box is vertically arranged on a middle partition plate, so that the space utilization rate in a shell can be improved, and the volume of the air conditioner outdoor unit is further reduced; and set up the heat dissipation wind channel in intercommunication fan chamber and press chamber in automatically controlled box inside, when the air conditioner off-premises station was operated, the fan intracavity was the negative pressure, and it can drive the air current in the press chamber and flow into the fan chamber through the heat dissipation wind channel, and then drives the air current and pass through the radiator fast to cool down to automatically controlled box fast. In addition, the bottom side wall at one end of the cooling air duct communicated with the fan cavity is provided with a waterproof groove and is spaced from the middle partition plate, when the wind wheel of the air conditioner outdoor unit reverses or is in a humid environment, part of water vapor can enter the cooling air duct, the waterproof groove can effectively prevent the water vapor from being gathered into water flow to connect the radiator and the middle partition plate, and further, a conductive 'water bridge' is effectively avoided between the radiator and the middle partition plate, so that electric leakage of the air conditioner outdoor unit is effectively avoided.

Description

Air conditioner outdoor unit and air conditioner

Technical Field

The present disclosure relates to air conditioning apparatuses, and particularly to an air conditioning outdoor unit and an air conditioner.

Background

The air conditioner outdoor unit is arranged on the outer side of the air conditioner room, when the temperature is high in summer, the heat productivity of the air conditioner outdoor unit is huge, the working environment of each electric appliance element in the air conditioner outdoor unit is severe, and the electric control box and the like need to be cooled, so that the electric control box and the like are prevented from being stopped or damaged due to the high temperature.

When the air conditioner outdoor unit works, the fan runs at a high speed, air directly enters the shell of the outdoor unit from the rear side of the outdoor unit after passing through the heat exchanger, and the flowing air flow can take away heat on the radiator of the electric control box, so that the electric control box is cooled.

However, when the fan of the outdoor unit of the air conditioner is reversed or in a humid environment, part of water vapor enters the heat dissipation air duct, and the converged water vapor may cause the heat radiator and the middle partition plate to form a conductive water bridge, so that electric leakage of the outdoor unit of the air conditioner is caused, and the safety of a user is influenced.

Disclosure of Invention

The application provides an air condensing units and air conditioner to solve the inside easy technical problem who leaks of air condensing units among the prior art.

In one aspect, the present application provides an air conditioner outdoor unit, including:

a housing having an installation cavity formed therein;

a middle partition plate which is arranged in the shell and divides the installation cavity into a fan cavity and a press cavity;

the electric control box is arranged on the middle partition plate, a heat dissipation air duct is formed in the electric control box, a radiator is arranged in the heat dissipation air duct, and air inlets are formed at two ends of the heat dissipation air duct to be respectively communicated with the fan cavity and the press cavity;

the heat dissipation air duct is communicated with the bottom side wall of one end of the fan cavity and the middle partition plate are arranged at intervals and are provided with waterproof grooves, and the waterproof grooves are used for isolating the electric control box from water contact with the surface of the middle partition plate.

In one possible implementation manner of the present application, the cross-sectional shape of the waterproof groove is U-shaped, and the opening of the waterproof groove is arranged to extend downward vertically.

In one possible implementation manner of the present application, the distance between the inner wall surfaces of two sides of the waterproof groove is B, where B satisfies: b is more than or equal to 5mm and less than or equal to 8mm.

In one possible implementation manner of the present application, an insulating layer is attached to an inner wall surface of one side, close to the middle partition, of the waterproof groove.

In one possible implementation manner of the present application, the shell is formed by enclosing a bottom plate, a top plate, a side plate, a front panel and a heat exchanger together;

the included angle between the plane of the middle partition plate and the plane of the heat exchanger is B, wherein B satisfies: b is more than or equal to 60 degrees and less than or equal to 90 degrees.

In one possible implementation manner of the present application, the heat dissipation air duct is an L-shaped air duct, the L-shaped air duct includes a vertical section and a horizontal section that are mutually communicated and are arranged at an included angle, an air port at one end of the vertical section Duan Yuan is communicated with the fan cavity, and an air port at one end of the horizontal section far away from the vertical section is communicated with the press cavity;

the air port communicated with the transverse section is not lower than the air port communicated with the vertical section.

In one possible implementation of the present application, an included angle between an inner sidewall located at the top of the lateral section and a horizontal plane is C, where C satisfies: c is more than or equal to 5 degrees and less than or equal to 10 degrees.

In one possible implementation manner of the application, a wire passing groove is formed on the outer surface of the electric control box, a wire inlet and a wire outlet are formed at two ends of the wire passing groove, the wire inlet extends to the fan cavity, and the wire outlet extends to the inside of the electric control box;

a plurality of water blocking ribs are arranged at the bottom of the inner side of the wire passing groove at intervals.

In one possible implementation manner of the present application, an arc-shaped cutting-preventing plate is arranged at the wire inlet, and is used for isolating the wire from contacting with the middle partition plate;

the electric control box is characterized in that a water baffle is further formed on the outer surface of the electric control box, the water baffle is located on one side, close to the fan cavity, of the wire inlet, and the water baffle covers the wire inlet on the orthographic projection of the plane where the wire inlet is located.

On the other hand, the application also provides an air conditioner, which comprises an air conditioner indoor unit and the air conditioner outdoor unit, wherein the air conditioner indoor unit is communicated with the air conditioner outdoor unit.

According to the air conditioner outdoor unit and the air conditioner, the electric control box is vertically arranged on the middle partition plate, so that the space utilization rate in the shell can be improved, and the volume of the air conditioner outdoor unit is further reduced; and set up the heat dissipation wind channel in intercommunication fan chamber and press chamber in automatically controlled box inside, when the air conditioner off-premises station was operated, the fan intracavity was the negative pressure, and it can drive the air current in the press chamber and flow into the fan chamber through the heat dissipation wind channel, and then drives the air current and pass through the radiator fast to cool down to automatically controlled box fast. In addition, the bottom side wall at one end of the cooling air duct communicated with the fan cavity is provided with a waterproof groove and is spaced from the middle partition plate, when the wind wheel of the air conditioner outdoor unit reverses or is in a humid environment, part of water vapor can enter the cooling air duct, the waterproof groove can effectively prevent the water vapor from being gathered into water flow to connect the radiator and the middle partition plate, and further, a conductive 'water bridge' is effectively avoided between the radiator and the middle partition plate, so that electric leakage of the air conditioner outdoor unit is effectively avoided.

Drawings

Technical solutions and other advantageous effects of the present application will be made apparent from the following detailed description of specific embodiments of the present application with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of an outdoor unit of an air conditioner according to an embodiment of the present disclosure;

FIG. 2 is an enlarged schematic view of FIG. 1 at E;

fig. 3 is a schematic structural diagram of an electronic control box according to an embodiment of the present application;

FIG. 4 is a side cross-sectional view of an electronic control box provided in an embodiment of the present application mounted on a midplane;

FIG. 5 is an enlarged schematic view of the portion K of FIG. 4;

fig. 6 is a schematic structural diagram of a heat sink according to an embodiment of the present application.

Reference numerals:

the outdoor unit 100, the casing 200, the bottom plate 210, the side plates 220, the heat exchanger 230, the fan chamber 240, the press chamber 250, the compressor 251, the wind wheel 260, the motor bracket 270, the middle partition 300, the insulating layer 310, the electric control box 400, the heat dissipation air duct 410, the air port 411, the vertical section 412, the horizontal section 413, the radiator 420, the heat dissipation fin 421, the wire passing groove 430, the wire inlet 431, the wire outlet 432, the water blocking rib 433, the arc-shaped anti-cutting plate 434, the buckle 435, the water blocking plate 436, the waterproof groove 500, and the wire 600.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different structures of the present application. In order to simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not in themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.

Referring to fig. 1 to 6, an embodiment of the present application provides an air conditioner outdoor unit 100, including:

a housing 200 having a mounting cavity formed therein;

a middle partition plate 300 installed in the case 200 and dividing the installation cavity to form a fan cavity 240 and a press cavity 250;

the electric control box 400 is arranged on the middle partition plate 300, a heat dissipation air duct 410 is formed in the electric control box 400, a radiator 420 is arranged in the heat dissipation air duct 410, and air ports 411 are arranged at two ends of the heat dissipation air duct 410 to be respectively communicated with the fan cavity 240 and the press cavity 250;

the bottom side wall of the cooling air duct 410, which is connected with one end of the fan chamber 240, is spaced from the middle partition 300 and is formed with a waterproof groove 500, and the waterproof groove 500 is used for isolating the electric control box 400 from water contact with the surface of the middle partition 300.

It should be noted that, in the fan chamber 240 of the outdoor unit 100 of the air conditioner provided in this embodiment, a wind wheel 260, a driving motor (not shown in the figure), a motor bracket 270 and other parts are further installed, wherein the motor bracket 270 is fixed in the fan chamber 240, the driving motor is installed on the motor bracket 270, the driving motor is connected with the wind wheel 260 and is used for driving the wind wheel 260 to rotate, and when the wind wheel 260 rotates, it can drive the air flow in the fan chamber 240 to flow rapidly. The compressor 251 and other components are installed in the compressor chamber 250 of the air conditioner outdoor unit 100.

It should be noted that, an electric control board (PCB board) is further installed on a side of the electric control box 400 close to the press cavity 250, a radiator 420 is installed on a side of the electric control board facing the heat dissipation air duct 410, and the radiator 420 is connected with the electric control board and may be electrified; the electric control box 400 and the electric control board are mostly made of plastic, but the radiator 420 and the middle partition 300 exposed in the radiating air duct 410 are mostly made of metal, water vapor in part of the external space may be blown into the radiating air duct 410 by the wind wheel 260, water flow collected by the water vapor may flow vertically downwards along the radiating air duct 410 under the action of self gravity, and flow along the bottom side wall of the radiating air duct 410, which is communicated with one end of the fan cavity 240, to contact with water flow collected on the middle partition 300 to form a conductive "water bridge", so that the electric conduction on the radiator 420 flows onto the middle partition 300.

By vertically installing the electronic control box 400 on the middle partition plate 300, the space utilization rate in the housing 200 can be improved, thereby reducing the volume of the air conditioner outdoor unit 100; and a heat dissipation air duct 410 is arranged in the electric control box 400 and is communicated with the fan cavity 240 and the press cavity 250, when the air conditioner outdoor unit 100 operates, negative pressure is arranged in the fan cavity 240, and the negative pressure can drive air flow in the press cavity 250 to flow into the fan cavity 240 through the heat dissipation air duct 410, so that the air flow is driven to rapidly pass through the radiator 420, and the electric control box 400 is rapidly cooled. In addition, a waterproof groove 500 is formed between the bottom side wall of one end of the cooling air duct 410, which is communicated with the fan cavity 240, and the middle partition 300, so that when the wind wheel 260 of the air conditioner outdoor unit 100 is reversed or in a humid environment, part of water vapor enters the cooling air duct 410, the waterproof groove 500 can effectively prevent the water flow collected by the part of water vapor from connecting the radiator 420 and the middle partition 300, and further effectively prevent a conductive 'water bridge' from being formed between the radiator 420 and the middle partition 300, thereby effectively avoiding electric leakage of the air conditioner outdoor unit 100.

Specifically, the heat sink 420 is composed of a plurality of heat dissipation fins 421.

In some embodiments, the electrical control box 400 is removably coupled to the septum 300.

Which can improve the assembling and disassembling efficiency of the electronic control box 400, thereby improving the assembling efficiency of the air conditioner outdoor unit 100.

In some embodiments, the waterproof groove 500 has a U-shaped cross-sectional shape, and the opening of the waterproof groove 500 is disposed to extend vertically downward.

By providing the waterproof groove 500 as a U-shaped groove with its opening direction vertically downward, i.e., the groove extends vertically upward to be convex; since the water flow can only flow downward or horizontally under the action of the self-gravity, the water flow flowing out of the heat dissipation duct 410 drops before flowing into the waterproof groove 500, and does not flow to the middle partition 300 along the inner wall surface of the waterproof groove 500. Thereby effectively avoiding the formation of a conductive 'water bridge' by the contact of the middle partition 300 and the water flow on the electric control box 400.

Further, in other embodiments, the cross-sectional shape of the waterproof groove 500 may be M-shaped, or inverted "u" shaped, that is, the connection of the inner wall surfaces of the waterproof groove 500 is 90 ° right angle contact, etc., which is not limited herein.

In some embodiments, the spacing between the inner wall surfaces of both sides of the waterproof groove 500 is B, wherein B satisfies: b is more than or equal to 5mm and less than or equal to 8mm.

It should be noted that, the creepage distance refers to a charging area where the insulating material is charged due to the electric polarization of the insulating material around the conductor under different usage conditions between two conductive parts measured along the insulating surface. I.e., the distance between the heat sink 420 and the septum 300 that may form a conductive "water bridge" in embodiments of the present application, is preferably no less than 6.3mm.

By setting the interval between the inner wall surfaces of both sides of the waterproof groove 500 to B, and the distance between the bottom edge of the radiator 420 and the air outlet 411 at one end of the fan cavity 240, which is generally connected with the heat dissipation air duct 410, is greater than 2mm, it can effectively ensure that the distance between the radiator 420 and the middle partition 300 is greater than 6.3mm.

In some embodiments, an insulating layer 310 is attached to an inner wall surface of one side of the waterproof groove 500 adjacent to the middle separator 300.

Since the middle partition 300 is usually a metal sheet metal part, an insulating layer 310 is disposed on a surface of one side of the middle partition 300 where the waterproof groove 500 is formed, which can effectively block water vapor on the inner sidewall of the waterproof groove 500 from contacting with water vapor on the middle partition 300.

In some embodiments, the housing 200 is enclosed by a bottom plate 210, a top plate, side plates 220, a front plate, and a heat exchanger 230;

the included angle between the plane of the middle partition 300 and the plane of the heat exchanger 230 is B, where B satisfies: b is more than or equal to 60 degrees and less than or equal to 90 degrees.

The casing 200 is cuboid, through setting up the middle baffle 300 slope, for the middle baffle 300 perpendicular to heat exchanger 230 setting commonly used among the prior art, it can increase the surface area of middle baffle 300 under the same casing 200 volume condition, and then has increased the installation shell usable floor area of automatically controlled box 400 for automatically controlled box 400 can be equipped with bigger heat dissipation wind channel 410 and radiator 420, has improved the radiating efficiency of automatically controlled box 400.

In addition, the middle partition plate 300 is obliquely arranged to enable the electric control box 400 mounted on the middle partition plate to be obliquely arranged, so that more signals and/or power interfaces and the like on the surface of the electric control box 400 can be exposed, the assembly of technicians is facilitated, and the assembly efficiency of the air conditioner outdoor unit 100 is improved.

In some embodiments, the heat dissipation air duct 410 is an L-shaped air duct, the L-shaped air duct includes a vertical section 412 and a lateral section 413 that are mutually communicated and disposed at an included angle, a wind port 411 at an end of the vertical section 412 away from the lateral section 413 is communicated with the fan cavity 240, and a wind port 411 at an end of the lateral section 413 away from the vertical section 412 is communicated with the press cavity 250;

the tuyere 411 communicating with the lateral section 413 is not lower than the tuyere 411 communicating with the vertical section 412.

It should be noted that, the outdoor unit 100 is installed at the outdoor side, but the outdoor environment is more changeable, and when the outdoor air contains a large amount of water vapor, a part of water vapor may enter the heat dissipation air duct 410, and condensed water is easily formed on the inner side wall of the heat dissipation air duct 410 and the inner side wall of the press cavity 250, which may cause leakage risk.

The inside of the L-shaped heat dissipation air duct 410 turns once, and the structure is simple; and because the air port 411 communicated with the transverse section 413 is not lower than the air port 411 communicated with the vertical section 412, the air flow forms a chimney effect in the heat dissipation air duct 410, the air flow quantity and the air flow speed entering the heat dissipation air duct 410 are improved, and the heat dissipation efficiency of the electronic control box 400 is further improved.

Further, in other embodiments, the heat dissipation air duct 410 may be a Z-type air duct, an inverted U-type air duct, or the like, which is not limited herein.

In some embodiments, the angle between the inner sidewall at the top of the transverse segment 413 and the horizontal is C, where C satisfies: c is more than or equal to 5 degrees and less than or equal to 10 degrees.

It should be noted that, when the wind wheel 260 of the outdoor unit 100 of the air conditioner is reversed or is in a humid environment, and the heat dissipation air duct 410 is an L-shaped air duct, part of water vapor is collected on the inner sidewall at the top of the transverse section 413, and then drops into the press cavity 250, which may cause short circuit damage of the compressor 251.

By arranging the inner side wall at the top of the transverse section 413 obliquely upwards at an angle C relative to the horizontal plane, the water vapor collected on the inner side wall at the top of the transverse section 413 can flow back into the heat dissipation air duct 410 and drop into the fan cavity 240, so that the short circuit damage caused by water vapor collection on the compressor 251 is effectively avoided.

In some embodiments, a wire passing groove 430 is formed on the outer surface of the electric control box 400, two ends of the wire passing groove 430 are provided with a wire inlet 431 and a wire outlet 432, the wire inlet 431 extends to the fan cavity 240, and the wire outlet 432 extends to the interior of the electric control box 400;

a plurality of water blocking ribs 433 are arranged at the bottom of the inner side of the wire passing groove 430 at intervals.

By providing the wire passing groove 430 on the electric control box 400, various wires 600 of the air conditioner outdoor unit 100 can be regularly accommodated, thereby facilitating the installation and wiring of technicians and improving the assembly efficiency of the air conditioner outdoor unit 100. In addition, by arranging the water blocking ribs 433 inside the wire passing groove 430, water vapor in the fan cavity 240 can be effectively prevented from being collected into water flow in the wire passing groove 430 and flowing into the electric control board inside the electric control box 400 along the wire passing groove 430, so that the electric safety of the air conditioner outdoor unit 100 is improved.

Optionally, a plurality of wire passing grooves 430 are provided on the outer surface of the electric control box 400, which are used for accommodating different types of wires 600 of the indoor unit of the air conditioner, such as a press wire, an external temperature sensing wire, and the like.

Specifically, a plurality of buckles 435 are formed on the outer surface of the electrical control box 400 at intervals, and can cooperate with the wire passing groove 430 to stabilize the storage of the wire 600.

In some embodiments, an arc-shaped anti-cutting plate 434 is provided at the wire inlet 431, the arc-shaped anti-cutting plate 434 being used to isolate the wire 600 from contact with the septum 300;

the outer surface of the electric control box 400 is also provided with a water baffle 436, the water baffle 436 is positioned on one side of the inlet 431 close to the fan cavity 240, and the water baffle 436 covers the inlet 431 on the orthographic projection of the plane where the inlet 431 is positioned.

It can be understood that the middle partition 300 is mostly made of metal sheet metal, and the thickness of the middle partition 300 is thinner, and the top end of the middle partition 300 in the embodiment of the application extends to the wire inlet 431 of the electric control box 400, and the wire 600 is easily cut by the edge of the middle partition 300 when entering the wire passing groove 430 through the wire inlet 431 in a turning and clamping manner.

By arranging the arc-shaped anti-cutting plate 434 at the edge of the wire inlet 431, the wire 600 is prevented from being in direct contact with the middle partition 300 in the process of being clamped into the wire passing groove 430 in a turning way, and further the middle partition 300 is effectively prevented from cutting the wire 600; and the arc-shaped plate body can smoothly guide the turning of the wire 600, so that the large-angle bending of the wire 600 is effectively avoided, and the service life of the wire 600 is prolonged.

It should be noted that, since the inlet 431 is disposed towards the fan cavity 240, the water vapor blown by the wind wheel 260 may also enter the through-slot 430 from the inlet 431.

Through set up the breakwater 436 in the one side that the inlet 431 is close to fan chamber 240, and the area of breakwater 436 is greater than the area of inlet 431 in order to cover inlet 431 as far as possible for the breakwater 436 can effectively block the steam that wind wheel 260 blown from inlet 431 to get into wire passing groove 430, thereby has reduced the electric leakage possibility of automatically controlled box 400.

The present application further provides an air conditioner, which includes an air conditioning indoor unit (not shown in the drawings) and the air conditioning outdoor unit 100 described above, where the air conditioning indoor unit is connected to the air conditioning outdoor unit 100. Since the air conditioner has the above-mentioned air conditioner outdoor unit 100, the present utility model is not repeated here.

In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to related descriptions of other embodiments.

The above describes an air conditioner outdoor unit 100 and an air conditioner provided in the embodiments of the present application in detail, and specific examples are applied to describe the principles and embodiments of the present application, where the description of the above embodiments is only for helping to understand the technical solution and core ideas of the present application; those of ordinary skill in the art will appreciate that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims (10)

1. An outdoor unit of an air conditioner, comprising:

a housing having an installation cavity formed therein;

a middle partition plate which is arranged in the shell and divides the installation cavity into a fan cavity and a press cavity;

the electric control box is arranged on the middle partition plate, a heat dissipation air duct is formed in the electric control box, a radiator is arranged in the heat dissipation air duct, and air inlets are formed at two ends of the heat dissipation air duct to be respectively communicated with the fan cavity and the press cavity;

the heat dissipation air duct is communicated with the bottom side wall of one end of the fan cavity and the middle partition plate are arranged at intervals and are provided with waterproof grooves, and the waterproof grooves are used for isolating the electric control box from water contact with the surface of the middle partition plate.

2. The outdoor unit of claim 1, wherein the waterproof groove has a U-shaped cross-section, and the opening of the waterproof groove extends vertically downward.

3. The outdoor unit of claim 2, wherein the distance between the inner wall surfaces of both sides of the waterproof groove is B, wherein B satisfies: b is more than or equal to 5mm and less than or equal to 8mm.

4. The outdoor unit of claim 1, wherein an insulating layer is attached to an inner wall surface of the waterproof groove adjacent to one side of the middle partition plate.

5. The outdoor unit of any one of claims 1 to 4, wherein the casing is formed by combining a bottom plate, a top plate, side plates, a front plate and a heat exchanger;

the included angle between the plane of the middle partition plate and the plane of the heat exchanger is B, wherein B satisfies: b is more than or equal to 60 degrees and less than or equal to 90 degrees.

6. The outdoor unit of any one of claims 1 to 4, wherein the heat dissipation air duct is an L-shaped air duct, the L-shaped air duct comprises a vertical section and a lateral section that are mutually communicated and disposed at an angle, an air port at one end of the vertical section Duan Yuan is communicated with the fan cavity, and an air port at one end of the lateral section that is far from the vertical section is communicated with the press cavity;

the air port communicated with the transverse section is not lower than the air port communicated with the vertical section.

7. The outdoor unit of claim 6, wherein an angle between an inner sidewall at a top of the lateral section and a horizontal plane is C, wherein C satisfies: c is more than or equal to 5 degrees and less than or equal to 10 degrees.

8. The outdoor unit of any one of claims 1 to 4, wherein a wire passing groove is formed on an outer surface of the electric control box, both ends of the wire passing groove are provided with a wire inlet and a wire outlet, the wire inlet extends to the fan cavity, and the wire outlet extends to the inside of the electric control box;

a plurality of water blocking ribs are arranged at the bottom of the inner side of the wire passing groove at intervals.

9. The outdoor unit of claim 8, wherein the wire inlet is provided with an arc-shaped cutting prevention plate for isolating wires from contact with the middle partition plate;

the electric control box is characterized in that a water baffle is further formed on the outer surface of the electric control box, the water baffle is located on one side, close to the fan cavity, of the wire inlet, and the water baffle covers the wire inlet on the orthographic projection of the plane where the wire inlet is located.

10. An air conditioner, characterized in that the air conditioner comprises an air conditioner indoor unit and an air conditioner outdoor unit according to any one of claims 1 to 9, wherein the air conditioner indoor unit is communicated with the air conditioner outdoor unit.