CN218846306U - Outdoor unit of air conditioner - Google Patents

Abstract

The utility model discloses an air conditioner outdoor unit, which comprises an outer shell, an outdoor heat exchanger, a compressor and an electrical appliance box, wherein the electrical appliance box is arranged in an installation inner cavity and comprises a box body, a circuit board positioned in the box body, a cover body covered on the box body and a flame-retardant piece which is detachably connected outside the box body, a middle baffle part is formed in the box body and divides the box body into a first heat dissipation area and a second heat dissipation area; the flame retardant piece can prevent the burning objects from falling and contacting with the refrigerant after the electric appliance box is ignited, so that the safety of the outdoor unit of the air conditioner is improved; the middle partition part plays a role in blocking sparks and fragments generated by combustion under the condition that the electric appliance box is ignited, protects components connected outside the electric appliance box to a certain extent, is provided with the communicating hole on the middle partition part, guarantees ventilation and heat dissipation and wind field flow between the first heat dissipation area and the second heat dissipation area, and improves the heat dissipation effect of the circuit board.

Description

Outdoor unit of air conditioner

Technical Field

The utility model belongs to the technical field of the air conditioner, specifically speaking relates to an air-conditioner outdoor unit.

Background

Air conditioners are household appliances commonly used in daily life, and are classified into wall-mounted air conditioners and cabinet air conditioners. Among them, the air conditioner generally includes an indoor unit installed at an indoor side and an outdoor unit installed at an outdoor side.

Due to the limitation of installation space, the installation of the electric appliance box in the air conditioner outdoor unit is generally closer to the structures such as a fan, a pipeline and the like, and condensed water thrown out in the operation process of the fan or external rainwater and the like can splash into the electric appliance box to influence the normal work of internal electric appliances; therefore, a shielding structure is required to be designed to prevent external water from entering the electrical box.

In addition, the electrical apparatus in the electrical apparatus box can produce higher heat in the course of the work, and still have the risk that the electrical apparatus box is ignited because of reasons such as overload or static, and the electrical apparatus box burning thing drips, still can explode with the refrigerant contact in the pipeline.

Disclosure of Invention

An object of the utility model is to provide an outdoor machine of air-conditioner to solve the ventilation water-proof effects of electrical apparatus box among the existing outdoor machine of air-conditioner that exists among the prior art not good enough, and fire-retardant characteristic is relatively poor, electrical apparatus box is ignited the back, exists and causes explosion risk scheduling problem with the refrigerant contact.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:

the utility model provides an outdoor machine of air-conditioner, it includes:

an outer housing having an installation cavity formed therein;

an outdoor heat exchanger disposed in the installation inner cavity; the heat exchanger is used for exchanging heat between outdoor airflow and a refrigerant transmitted in the outdoor heat exchanger;

the compressor is arranged in the installation inner cavity, is connected with the outdoor heat exchanger through a pipeline and is used for compressing a low-pressure refrigerant into a high-pressure refrigerant;

electrical apparatus box, its setting is in the installation inner chamber, establish including box body, circuit board, the lid that is located the box body lid on the box body and can dismantle the connection be in the outer fire-retardant piece of box body, be formed with intermediate isolation portion in the box body, will first radiating area and second radiating area are separated into to the box body.

In some embodiments of the present application, a plurality of heat dissipation holes are dispersedly formed at the bottom of the box body corresponding to the first heat dissipation area, and are used for evacuating part of heat generated in the working process of the circuit board.

In some embodiments of the present application, a plurality of communication holes for communicating the first heat dissipation area and the second heat dissipation area are dispersedly formed on the intermediate barrier.

In some embodiments of the present application, the circuit board includes an element section and a fin section, and in an installation state, the element section and the fin section are respectively corresponding to the first heat dissipation section and the second heat dissipation section.

In some embodiments of the present application, an end of the second heat dissipation area is formed with an outer barrier, on which a waterproof louver is formed.

In some embodiments of the present application, the outer barrier portion is formed with a plurality of barrier portions extending outward along a length direction thereof in a dispersed manner, and a ventilation opening is opened at a side of each barrier portion.

In some embodiments of the application, the flame-retardant member is a sheet metal shell and comprises a flame-retardant end face, a flame-retardant side face and a flame-retardant bottom face, and the flame-retardant member is detachably connected to the outer side of the outer barrier part;

and a plurality of heat dissipation channels are formed on the flame-retardant end face, the flame-retardant side face and the flame-retardant bottom face of the flame-retardant piece.

In some embodiments of the present application, a plurality of first clamping groove portions are formed on the flame retardant member, first clamping portions corresponding to the first clamping groove portions are formed on the box body, and in an installation state, the first clamping groove portions are connected with the first clamping portions at corresponding positions.

In some embodiments of this application, the lid with can dismantle the connection through the buckle between the box body, the lid includes the apron and forms the outer edge of connection of the week downwardly extending of apron week, be formed with a plurality of second draw-in groove portions on the edge outside the connection, be formed with on the box body with each the second joint portion of second draw-in groove portion position looks adaptation, under the mounted state, each second draw-in groove portion is connected to and corresponds on the second joint portion.

In some embodiments of the present application, an outwardly extending handle is further formed at an end of the cover for facilitating removal of the cover from the case; and/or

And reinforcing ribs are formed on the inner wall of the cover plate and used for improving the structural strength of the cover body.

Compared with the prior art, the utility model discloses an advantage is with positive effect:

according to the air conditioner outdoor unit, the flame-retardant piece and the middle spacing baffle part are arranged on the electric appliance box arranged in the air conditioner outdoor unit, and the flame-retardant piece can prevent a burning object from falling to contact with a refrigerant after the electric appliance box is ignited, so that the safety of the air conditioner outdoor unit is improved;

the middle blocking part has a blocking effect on the outward splashing of sparks and fragments generated by combustion under the condition that the electric appliance box is ignited, and protects components connected outside the electric appliance box to a certain extent, and the middle blocking part is provided with the communicating hole to ensure the ventilation and heat dissipation and the wind field flow between the first heat dissipation area and the second heat dissipation area.

Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when read in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural view illustrating an embodiment of an electrical box of an outdoor unit of an air conditioner according to the present invention;

FIG. 2 is a schematic diagram of a disassembled structure of the electrical box;

FIG. 3 is one of the schematic diagrams of the box structure;

FIG. 4 is a schematic view of the air flow in the box;

FIG. 5 is a second schematic view of the case structure;

FIG. 6 is a schematic diagram of a circuit board structure;

FIG. 7 is a view showing the structure of a flame retardant member;

FIG. 8 is a second schematic view of the structure of the flame retardant member;

FIG. 9 is a schematic view of a cover structure;

FIG. 10 is a second schematic view of the cover structure;

in the figure, the position of the upper end of the main shaft,

100. a box body;

101. a first heat dissipation area; 1011. heat dissipation holes; 102. a second heat dissipation area;

110. a middle barrier portion; 111. a communicating hole;

120. an outer barrier portion; 121. a vent;

130. a connecting portion;

140. a wind-dispelling port;

150. a first clamping part;

160. a second clamping part;

200. a cover body;

210. a cover plate; 220. connecting the outer edges; 230. a second slot part; 240. a hand-held portion;

300. a circuit board;

301. a component section;

302. a fin region;

310. a heat sink;

400. a flame retardant member;

410. a flame retardant end face;

420. a flame retardant side;

430. a flame retardant bottom surface;

440. a heat dissipation channel;

450. a first slot part;

460. a handle portion.

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, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically coupled, may be directly coupled, or may be indirectly coupled through an intermediary. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed.

The air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator.

The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.

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

The expansion valve expands the high-temperature and high-pressure liquid-phase refrigerant condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.

The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit.

The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in a cooling mode.

The refrigeration working principle of the air conditioner is as follows: the compressor works to enable the interior of the indoor heat exchanger (in the indoor unit, the evaporator at the moment) to be in an ultralow pressure state, liquid refrigerant in the indoor heat exchanger is rapidly evaporated to absorb heat, air blown out by the indoor fan is cooled by the coil pipe of the indoor heat exchanger to become cold air which is blown into a room, the evaporated and vaporized refrigerant is compressed by the compressor, is condensed into liquid in a high-pressure environment in the outdoor heat exchanger (in the outdoor unit, the condenser at the moment) to release heat, and the heat is dissipated into the atmosphere through the outdoor fan, so that the refrigeration effect is achieved by circulation.

The heating working principle of the air conditioner is as follows: the gaseous refrigerant is pressurized by the compressor to become high-temperature and high-pressure gas, and the high-temperature and high-pressure gas enters the indoor heat exchanger (the condenser at this time), is condensed, liquefied and released heat to become liquid, and simultaneously heats indoor air, thereby achieving the purpose of increasing the indoor temperature. The liquid refrigerant is decompressed by the throttling device, enters the outdoor heat exchanger (an evaporator at the moment), is evaporated, gasified and absorbs heat to form gas, absorbs heat of outdoor air (the outdoor air becomes cooler) to form gaseous refrigerant, and enters the compressor again to start the next cycle.

The application provides an outdoor machine of air-conditioner, including the shell body, be formed with the installation inner chamber in the shell body, be provided with working member such as compressor, outdoor heat exchanger, fan, electrical apparatus box in the installation inner chamber.

The outdoor heat exchanger is used for exchanging heat between outdoor airflow and a refrigerant transmitted in the outdoor heat exchanger.

The compressor is connected with the outdoor heat exchanger through a pipeline and used for compressing low-pressure refrigerant into high-pressure refrigerant, and the compressor is connected with the outdoor heat exchanger and the indoor heat exchanger through the four-way valve and forms a refrigerant loop.

As shown in fig. 1 and 2, the electrical box specifically includes a box body 100, a circuit board 300 located in the box body 100, a cover body 200 covering the box body 100, and a flame retardant member 400 detachably connected to the outside of the box body 100.

The case 100 is formed with an inner cavity of the case 100 opened at an upper side, the cover 200 is covered above the inner cavity of the case 100, and the circuit board 300 is installed in the inner cavity of the case 100.

As shown in fig. 3 to 6, a middle barrier 110 is formed in the inner cavity of the case 100 to divide the inner cavity of the case 100 into a first heat dissipation area 101 and a second heat dissipation area 102.

The circuit board 300 includes a component area 301 and a heat sink area 302, the component area 301 is installed with circuit components such as capacitors and inductors, a plurality of heat sinks 310 are vertically arranged on the heat sink area 302 at intervals, and the heat sinks 310 are used for dissipating heat on the circuit board 300.

In some embodiments of the present application, the connecting portion 130 is formed on a side wall of the mounting cavity, and a supporting end surface for supporting the circuit board 300 is formed on the connecting portion 130, and the circuit board 300 is supported on the supporting end surface in a connecting manner and fixed to the connecting portion 130 by a fastening member such as a screw.

In the mounted state, the circuit board 300 is placed in the case 100, and the component section 301 and the heat sink section 302 are positioned to correspond to the first heat dissipation section 101 and the second heat dissipation section 102, respectively.

The middle barrier part 110 can prevent sparks or fragments from splashing outwards to play a role of protection when the circuit board 300 is overloaded or ignited due to static electricity or the like.

The middle blocking part 110 is dispersedly provided with a plurality of communication holes 111 for communicating the first heat dissipation area 101 with the second heat dissipation area 102, and the communication holes 111 can ensure the circulation of air flow between the first heat dissipation area 101 and the second heat dissipation area 102 in the ventilation and heat dissipation process, and have the blocking function and simultaneously do not influence the communication between the first heat dissipation area 101 and the second heat dissipation area 102, so as to realize ventilation and heat dissipation.

A plurality of heat dissipation holes 1011 are dispersedly formed at the bottom of the box 100 corresponding to the first heat dissipation region 101 for dissipating part of heat generated during the operation of the circuit board 300.

The diameter of the heat dissipation holes 1011 is 2.5mm or other sizes, so that sparks and fragments formed by deflagration of circuit components such as capacitors and inductors at the initial stage of combustion are prevented from splashing, parts outside an electric box such as heat insulation cotton and sensors are ignited, and meanwhile, the ventilation and heat dissipation area and the wind field flow of the circuit board 300 are ensured.

Two ends of the box 100 where the first heat dissipation area 101 and the second heat dissipation area 102 are located are both formed with an opening structure, and two sidewalls of the second heat dissipation area 102 are of a sealed flat plate structure, so as to ensure that the wind field completely passes through the second heat dissipation area 102 for heat dissipation of the heat dissipation fins 310.

A wind-dispersing port 140 is formed at one side of the first heat-dissipating region 101, and an air flow is input from the wind-dispersing port 140 and the port at the side of the first heat-dissipating region 101, passes through the first heat-dissipating region 101 and the second heat-dissipating region 102 along the longitudinal direction of the case 100, and is finally output from the port at the side of the second heat-dissipating region 102.

An outer barrier 120 is formed at an end of the second heat dissipation area 102, and the outer barrier 120 can separate condensed water thrown away by the fan and external rainwater, and can also separate mosquitoes.

Waterproof shutters are formed on the outer partition portion 120, so that the effects of water resistance, mosquito prevention and ventilation and heat dissipation are achieved.

In other embodiments, the outer barrier 120 includes a plurality of barriers extending outward along its length, and one side of each barrier is opened with a vent 121.

The vent 121 is arranged on the side edge, so that the blocking effect of condensed water thrown out by a fan and the like can be improved, the condensed water is blocked outside, external water is prevented from directly entering the inner cavity of the box body 100 to influence the work of the circuit board 300, and the safety is improved.

When the electrical box burns due to overload or static electricity and the like, the damage of the fan and the pipeline can be caused when the comburent drops on the fan or the pipeline, the refrigerant is conveyed in the pipeline, the refrigerant has flammability and explosiveness, the comburent can cause explosion after contacting the refrigerant, and great potential safety hazards exist.

Referring to fig. 7 and 8, in order to further reduce the potential safety hazard, a flame retardant member 400 is disposed outside the electrical appliance box, and the flame retardant member 400 is a sheet metal casing, so that the electrical appliance box can effectively prevent the combustibles from dripping to ignite the fan and detonate the refrigerant, and the safety of the entire outdoor unit of the air conditioner is improved.

The flame-retardant member 400 is a housing structure, and has connection ports formed at one end and the top thereof, specifically, the flame-retardant member 400 includes a flame-retardant end surface, a flame-retardant side surface and a flame-retardant bottom surface, and the flame-retardant member 400 is detachably connected to the outer side of the outer barrier portion 120.

In order to prevent the flame retardant member 400 from affecting the ventilation and heat dissipation process, a plurality of heat dissipation channels are formed on the flame retardant end face, the flame retardant side face and the flame retardant bottom face of the flame retardant member 400, so as to ensure gas circulation and heat evacuation.

Through the mode of buckle connection between fire-retardant piece 400 and the box body 100, all be formed with a plurality of first draw-in groove portions on the fire-retardant side of fire-retardant piece 400 and the fire-retardant terminal surface, be formed with the first joint portion 150 that corresponds with each first draw-in groove portion on the box body 100, under the installation, first draw-in groove portion is connected with the first joint portion 150 that corresponds the position.

Referring to fig. 9 and 10, the cover 200 includes a cover 210 and a connection outer edge 220 formed on the periphery of the cover 210 and extending downward, and in the mounted state, the connection outer edge 220 is connected to an end surface of the case 100 for fixing the cover 200 above the case 100.

In some embodiments of the present application, the cover 200 and the case 100 are detachably connected by a buckle, a plurality of second clamping groove portions 230 are formed on the connecting outer edge 220, second clamping portions 160 adapted to the positions of the second clamping groove portions 230 are formed on the case 100, and in an installation state, each second clamping groove portion 230 is connected to a corresponding second clamping portion 160.

First joint portion 150 and second joint portion 160 are the connection arch that forms on box body 100 terminal surface and outside extension, and in order to improve the efficiency when connecting, all are formed with the direction of leading inclined plane to the outward slope on first joint portion 150 and the second joint portion 160 along the installation direction, and first joint portion and second joint portion 230 are the through-hole structure.

In the installation process, under the effect of the guiding inclined plane, the flame-retardant piece 400 and the cover body 200 are expanded outward until the first clamping groove portion and the second clamping groove portion 230 are clamped on the corresponding first clamping portion 150 and the second clamping portion 160.

Specifically, the installation directions of the second clamping groove portion 230 and the second clamping portion 160 are the same as the installation direction of the cover body 200, and are all from top to bottom, the cover body 200 moves downwards to connect the second clamping groove portion 230 to the second clamping portion 160, then a guiding inclined plane is formed above the second clamping portion 160, and the guiding inclined plane gradually inclines downwards along the direction away from the box body 100.

In the installation process of the cover body 200, as the cover body 200 is installed downwards, the connection outer edge 220 is gradually expanded outwards under the action of the guide inclined plane until the second clamping groove portion 230 is completely connected to the second clamping portion 160.

The installation direction of first draw-in groove portion and first joint portion 150 is unanimous with fire-retardant piece 400, is from bottom to top, and fire-retardant piece 400 is installed from the lower extreme of box body 100 upwards, and the direction inclined plane on the first joint portion 150 sets up along the installation direction of fire-retardant piece 400, and in the installation, the fire-retardant side and the fire-retardant terminal surface of fire-retardant piece 400 expand outward gradually, until first draw-in groove portion on it is connected to on the first joint portion 150 completely.

In order to facilitate the detachment of the cover body 200 and the fire retardant member 400 by an operator during maintenance, a hand-held portion 240 extending outward is further formed at an end of the cover body 200; a handle portion 460 protruding downward is formed on the flame-retardant bottom surface 430 of the flame-retardant member 400.

Reinforcing ribs are formed on the inner wall of the cover plate 210 to improve the structural strength of the cover body 200 and prevent deformation.

The box body 100 and the cover body 200 are made of PC + ABS material or other similar flame-retardant and antistatic materials, the PC + ABS material belongs to one of thermoplastic engineering plastics, is also called engineering plastic alloy, is a mixture of polycarbonate and acrylonitrile-butadiene-styrene copolymer, and has good mechanical property, impact strength, temperature resistance, processing fluidity and other properties.

According to the air conditioner outdoor unit, the flame-retardant piece 400 and the middle partition 110 are arranged on the electrical box arranged in the air conditioner outdoor unit, and after the electrical box is ignited, the flame-retardant piece 400 can prevent a burning object from falling to contact with a refrigerant, so that the safety of the air conditioner outdoor unit is improved.

The middle partition part 110 has a blocking effect on the external splash of sparks and fragments generated by combustion under the condition that the electric appliance box is ignited, and protects components connected outside the electric appliance box to a certain extent, the communication hole 111 is formed in the middle partition part 110, ventilation and heat dissipation and wind field flow between the first heat dissipation area 101 and the second heat dissipation area 102 are guaranteed, and the heat dissipation effect is better.

In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above embodiments of the present invention are only examples, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also intended to be covered by the scope of the present invention.

Claims (10)

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

an outer housing having an installation cavity formed therein;

an outdoor heat exchanger disposed in the installation inner cavity; the heat exchanger is used for exchanging heat between outdoor airflow and a refrigerant transmitted in the outdoor heat exchanger;

the compressor is arranged in the installation inner cavity, is connected with the outdoor heat exchanger through a pipeline, and is used for compressing a low-pressure refrigerant into a high-pressure refrigerant;

the electrical box, it sets up in the installation inner chamber, establish including box body, the circuit board that is located the box body, lid on the box body and can dismantle the connection and be in the outer fire-retardant piece of box body, be formed with intermediate separation portion in the box body, will first radiating area and second radiating area are separated into to the box body.

2. The outdoor unit of claim 1, wherein,

the bottom of the box body corresponding to the first heat dissipation area is dispersedly provided with a plurality of heat dissipation holes for evacuating part of heat generated in the working process of the circuit board.

3. The outdoor unit of claim 1, wherein,

and a plurality of communication holes for communicating the first heat dissipation area with the second heat dissipation area are formed on the middle baffle part in a dispersed manner.

4. The outdoor unit of claim 1, wherein,

the circuit board comprises a component area and a radiating fin area, and the component area and the radiating fin area correspond to the first radiating area and the second radiating area respectively in position in an installation state.

5. The outdoor unit of claim 1,

an outer partition part is formed at the end part of the second heat dissipation area, and waterproof shutters are formed on the outer partition part.

6. The outdoor unit of claim 5, wherein,

the outer baffle parts are dispersedly formed with a plurality of baffle parts extending outwards along the length direction of the outer baffle parts, and the sides of the baffle parts are provided with ventilation openings.

7. The outdoor unit of claim 5, wherein,

the flame-retardant part is a sheet metal shell and comprises a flame-retardant end face, a flame-retardant side face and a flame-retardant bottom face, and the flame-retardant part is detachably connected to the outer side of the outer barrier part;

and a plurality of heat dissipation channels are formed on the flame-retardant end face, the flame-retardant side face and the flame-retardant bottom face of the flame-retardant piece.

8. The outdoor unit of claim 7, wherein,

the flame-retardant part is provided with a plurality of first clamping groove parts, the box body is provided with first clamping parts corresponding to the first clamping groove parts, and the first clamping groove parts are connected with the first clamping parts at corresponding positions in an installation state.

9. The outdoor unit of claim 1, wherein,

the lid with can dismantle the connection through the buckle between the box body, the lid includes the apron and forms apron week side downwardly extending's connection outer edge, be formed with a plurality of second draw-in groove portions on the connection outer edge, be formed with on the box body with each the second draw-in groove portion position looks adaptation's second draw-in groove portion, under the installation status, each second draw-in groove portion is connected to and corresponds on the second draw-in groove portion.

10. The outdoor unit of claim 9, wherein,

a hand-held part extending outwards is formed at the end part of the cover body and is used for facilitating the detachment of the cover body from the box body; and/or

And reinforcing ribs are formed on the inner wall of the cover plate and used for improving the structural strength of the cover body.

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