CN213901281U - Outdoor machine of air conditioner - Google Patents

Abstract

The utility model provides an air condensing units belongs to air conditioning technology field. Comprises a casing, a shell and a cover, wherein an accommodating space is defined in the casing; the partition plate is arranged in the shell and divides the containing space into a fan cavity and a press cavity, and a ventilation channel connecting the fan cavity and the press cavity is arranged at the partition plate; the electric control board is arranged in the press cavity and is provided with a fan module and a radiator, and the radiator is connected with the fan module and arranged corresponding to the ventilation channel; the fan is arranged in the fan cavity, and the fan can enable the airflow in the press cavity to flow into the fan cavity through the ventilation channel in the rotating process so as to take away the heat on the radiator; wherein the air duct is formed by a louver hole provided on the partition plate. The air duct formed by the louver holes is arranged on the partition plate, so that the heat dissipation efficiency is improved, and rain water brought by the fan can be prevented from splashing to an electrical element through the air duct.

Description

Outdoor machine of air conditioner

Technical Field

The utility model relates to the technical field of household appliances, especially, relate to an air condensing units.

Background

In the related art, a fan module on an air conditioner electric control board generally radiates heat through a single small radiator, a special air duct and an air field do not exist, the radiating effect is poor, the temperature rise of the fan module is too high, and the rotating speed of a fan is influenced.

Disclosure of Invention

The utility model discloses solve one of the technical problem in the correlation technique at least to a certain extent.

To this end, an aspect of the present disclosure provides an outdoor unit of an air conditioner, which improves heat dissipation efficiency by forming an air duct at a radiator of a fan module, and effectively reduces a temperature of the fan module.

Another aspect of the present disclosure provides an outdoor unit of an air conditioner, which includes a ventilation duct formed by louver holes at a partition, and can prevent rainwater, which is carried by a fan, from being sprayed onto electrical components through the ventilation duct while improving heat dissipation efficiency.

An outdoor unit of an air conditioner according to an aspect of the present disclosure includes: a housing defining an accommodating space therein; the partition plate is arranged in the shell and divides the accommodating space into a fan cavity and a press cavity, and a ventilation channel for communicating the fan cavity with the press cavity is arranged at the partition plate; the fan is arranged in the fan cavity, and the fan can enable the airflow in the press cavity to flow into the fan cavity through the ventilation channel to form airflow flow in the rotating process; the electric control board is arranged in the press cavity, and is provided with a fan module and a radiator connected with the fan module so as to radiate the fan module; the radiator is arranged corresponding to the ventilation channel.

According to an embodiment of the outdoor unit of an air conditioner of the present disclosure, the heat sink is disposed on one side of the electric control board close to the air duct, so that the heat sink is located in an airflow flowing range near the air duct.

According to an embodiment of the outdoor unit of an air conditioner of the present disclosure, the heat sink has a plurality of heat sinks, and the plurality of heat sinks do not intersect with each other in a projection of a vertical plane of an air flow.

According to the embodiment of the outdoor unit of the air conditioner of the present disclosure, the plurality of radiators are equidistant from the air duct.

According to the embodiment of the outdoor unit of the air conditioner of the present disclosure, an area of an area occupied by the ventilation duct at the partition plate is not smaller than a projection area of the radiator on the partition plate.

According to an embodiment of the outdoor unit of an air conditioner of the present disclosure, the air path is formed by a plurality of micro through holes provided in the partition plate.

According to an embodiment of the outdoor unit of an air conditioner of the present disclosure, the outdoor unit of an air conditioner further includes: a mounting plate connected to the partition adjacent to the air duct, the mounting plate having: a bonding portion bonded to the separator; and the intersection part is connected with the fitting part at an included angle, and the electric control board is arranged on the intersection part.

According to the embodiment of the outdoor unit of an air conditioner of the present disclosure, the ventilation duct is provided at the partition plate and the attaching portion.

According to the embodiment of the outdoor unit of the air conditioner, the mounting plate and the electric control plate are vertically arranged in the press cavity, and the front face of the electric control plate faces forwards.

According to the embodiment of the outdoor unit of the air conditioner, the radiator is arranged close to the upper end of the electric control board.

An outdoor unit of an air conditioner according to another aspect of the present disclosure includes: a housing defining an accommodating space therein; the partition plate is arranged in the shell and divides the accommodating space into a fan cavity and a press cavity, and a ventilation channel for communicating the fan cavity with the press cavity is arranged at the partition plate; the electric control board is arranged in the press cavity, a fan module and a radiator are arranged on the electric control board, and the radiator is connected with the fan module and arranged corresponding to the ventilation duct; the fan is arranged in the fan cavity, and the fan can enable the airflow in the press cavity to flow into the fan cavity through the ventilation channel in the rotating process so as to take away the heat on the radiator; wherein the air duct is formed by a louver hole provided on the partition plate.

According to an embodiment of the outdoor unit of an air conditioner of the present disclosure, the louver hole is disposed at the side of the fan chamber and opens toward the bottom of the casing.

According to an embodiment of the outdoor unit of an air conditioner of the present disclosure, the louver holes include a first louver hole provided at one side of the partition plate, and a second louver hole provided at the other side of the partition plate, and the first louver hole and the second louver hole are communicated and open in opposite directions.

According to an embodiment of the outdoor unit of an air conditioner of the present disclosure, an opening of one of the first louver and the second louver faces a bottom of the cabinet, and an opening of the other one faces a top of the cabinet.

According to an embodiment of the outdoor unit of an air conditioner of the present disclosure, an opening of one of the first louver and the second louver faces forward, and an opening of the other one faces backward.

According to an embodiment of the outdoor unit of an air conditioner of the present disclosure, a distance from a root of the first louver to a root of the second louver is e, and a vertical distance from the root of the first louver or the second louver to an open end thereof is f, 0 < e < 2 f.

According to the embodiment of the outdoor unit of the air conditioner, e is more than or equal to 1/3f and less than or equal to 2/3 f.

According to the embodiment of the air condensing units of the present disclosure, further comprising: the mounting plate is attached and connected with the partition plate; the partition board is provided with the first louver holes, and the mounting plate is provided with the second louver holes.

According to the embodiment of the outdoor unit of the air conditioner, the mounting plate is provided with the intersection part connected with the partition plate in an included angle, and the electric control plate is mounted on the intersection part.

According to the embodiment of the outdoor unit of the air conditioner, the width of the opening end of the louver hole is h, and h is less than or equal to 5 mm.

Advantageous effects

According to the air conditioner outdoor unit, the ventilating duct is arranged on the partition plate, when the fan rotates, air flow of the press cavity can flow into the fan cavity from the ventilating duct, the fan module and the radiator are arranged corresponding to the ventilating duct, the air flow can take away heat on the radiator, heat dissipation of the fan module is accelerated, and the temperature of the fan module is further reduced; in addition, the direction of the fins of the radiator is approximately parallel to the flow direction of the air flow, so that the contact area between the radiator and the air flow can be increased, and the radiating effect is further increased.

According to the air conditioner outdoor unit, the radiator and the fan module are arranged on one side, close to the air channel, of the electric control board, and air flow near the air channel can be fully utilized, so that the radiating effect is further improved.

According to the air conditioner outdoor unit, the ventilation channel of the air conditioner outdoor unit is arranged in the form of the louver holes or the double-layer louver holes, rain water can be effectively prevented from entering the electric components through the ventilation channel, and the air conditioner outdoor unit has good rain resistance.

According to the air conditioner outdoor unit, the projections of the plurality of radiators on the vertical plane of the air flow do not intersect, and the uniformity of heat dissipation of the radiators can be achieved.

Drawings

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

Fig. 1 and 2 are views of an external appearance of an outdoor unit of an air conditioner according to an embodiment of the present disclosure;

fig. 3 to 5 are partial schematic views of an outdoor unit of an air conditioner according to an embodiment of the present disclosure;

fig. 6 is a schematic view of an electric control plate and a mounting plate of an outdoor unit of an air conditioner according to an embodiment of the present disclosure;

fig. 7 and 8 are schematic views of a partition plate of an outdoor unit of an air conditioner according to an embodiment of the present disclosure;

fig. 9 is a partial sectional view of a partition plate of an outdoor unit of an air conditioner at a ventilation duct according to an embodiment of the present disclosure;

fig. 10 is a partial sectional view of an outdoor unit of an air conditioner at a ventilation duct according to an embodiment of the present disclosure;

FIG. 11 is an enlarged view of A of FIG. 10;

in the above figures: 1. an air conditioner outdoor unit; 10. a housing; 11. a partition plate; 12. a base plate; 13. a top plate; 14. a front panel; 15. a rear panel; 16. a side panel; 17. an air inlet side; 18. an air outlet grille; 19. maintaining the plate; 20. a fan; 30. an electric control board; 31. a fan module; 32. a heat sink; 321. a fin; 322. a heat dissipation channel; 41 a fan cavity; 42. a press cavity; 43. an air duct; 44. a through hole; 45. a baffle plate; 46. an opening; 50. mounting a plate; 51. a bonding section; 52. an intersection portion; 60 louver openings; 61. a first louver aperture; 62. a second louver aperture; 71. hanging a piece; 72. a slot; 81. an outdoor heat exchanger; 82. a compressor; 83. a refrigerant pipe.

Detailed Description

The present invention is specifically described below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

The air conditioner in the present disclosure 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 compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. 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 liquid-phase refrigerant in a high-temperature and high-pressure state 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 of the air conditioner.

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.

Referring to fig. 1 to 3, an outdoor unit of an air conditioner according to an embodiment of the present disclosure includes a casing 10, a fan 20, an electric control panel 30, an outdoor heat exchanger 81, and a compressor 82.

The cabinet 10 may form an overall appearance of the outdoor unit of the air conditioner, and a receiving space is defined therein, and the partition 11 is disposed in the cabinet 10 and divides the receiving space into a blower chamber 41 and a compressor chamber 42.

Specifically, the chassis 10 may include a front panel 14, a rear panel 15 disposed behind the front panel 14, a pair of side panels 16 disposed between the front panel 14 and the rear panel 15, a top panel 13 disposed above the pair of side panels 16, and a bottom panel 12 disposed below the pair of side panels 16. An open air inlet side 17 is arranged on the part of the rear panel 15 corresponding to the fan cavity 41, an air outlet grille 18 is arranged on the part of the front panel 14 corresponding to the fan cavity 41, and the air inlet side 17 and the air outlet grille 18 are arranged in a front-back opposite mode.

The outdoor heat exchanger 81 is installed on the air inlet side 17, the fan 20 is installed between the outdoor heat exchanger 81 and the outlet grille 18, and the outdoor air is heat-exchanged by the outdoor heat exchanger 81 and then blown out from the outlet grille 18 under the action of the fan 20.

The compressor 82 and the electric control board 30 are installed in the press cavity 42, the compressor 82 is connected with the outdoor heat exchanger 81 through a refrigerant pipe 83, and the electric control box 30 is used for realizing an electric control function of the air conditioner.

Referring to fig. 4 to 6, a fan module 31 and a heat sink 32 are disposed on the electronic control board 30, and the heat sink 32 is connected to the fan module 31 and is used for dissipating heat of the fan module 31.

The outdoor unit of the air conditioner may include a mounting plate 50 for fixedly mounting the electric control board 30, the mounting plate 50 having a fitting portion 51 fitted to the partition plate 11 and an intersecting portion 52 connected to the fitting portion 51 at an included angle; the electronic control board 30 is fixedly mounted to the intersection 52 of the mounting plate 50.

Specifically, referring to fig. 6 and 7, two hanging pieces 71 are disposed on one side of the attaching portion 51 close to the partition 11, the hanging pieces 71 are vertically distributed, two slots 72 are correspondingly disposed on the partition 11, the hanging pieces 71 are hung in the slots 72 to connect the mounting plate 50 with the partition 11, and then the mounting plate 50 and the partition 11 can be fastened by screws, so as to ensure the firmness and stability of the mounting plate 50 on the partition 11. The mounting plate 50 is hung on the partition plate 11, so that the mounting plate 50 and the partition plate 11 can be fixedly connected in advance, and subsequent screwing operation is facilitated.

It should be noted that the present disclosure is not limited to the connection form of the mounting plate 50 and the partition plate 11, and the two may also adopt other connection forms, such as only adopting screw connection, welding, or the like.

With continued reference to fig. 4, the electronic control board 30 and the mounting plate 50 are vertically disposed within the press cavity 42 with the front side of the electronic control board 30 facing the front side; meanwhile, the part of the front panel 14 corresponding to the press cavity 42 is provided with a maintenance plate 19, and the maintenance plate 19 is detachably connected on the housing 10, so that the maintenance plate 19 can be conveniently taken down to maintain the electric control board 30.

With continued reference to fig. 5, the partition 11 is provided with an air duct 43 connecting the air blower chamber 41 and the air blower chamber 42, the air blower chamber 42 is communicated with the outside, the pressure of the air blower chamber 41 is substantially equal to the atmospheric pressure, and the pressure of the air blower chamber 41 is lower than the atmospheric pressure during the rotation of the fan 20; according to the air cooling device, the pressure difference between the two sides of the press cavity 42 and the fan cavity 41 is utilized, so that the air flow of the press cavity 42 flows into the fan cavity 41 through the air duct 43, the heat on the radiator 32 can be taken away by the air flow formed between the press cavity 42 and the fan cavity 41, and the fan module 31 is cooled.

Specifically, the air duct 43 may be formed by a plurality of small through holes disposed on the partition board 11, so that the difficulty of rainwater entering the electric control board 30 through the air duct 43 can be increased while the formation of the air duct 43 is ensured.

Alternatively, referring to fig. 7 and 8, the ventilation duct 43 may be formed by a louver 60 disposed on the partition 11, the louver 60 is disposed on the side of the fan chamber 41, the opening of the louver 60 faces downward, the outer wall of the louver 60 blocks rain water, and rain water brought up by the fan can flow down along the outer wall of the louver 60 when reaching the partition, so as to better prevent rain water from entering the electric control board 30.

Specifically, referring to fig. 9, an arrow indicates an airflow flowing direction, a through hole 44 is formed in the partition plate 11, a baffle plate 45 connected to a peripheral portion of the through hole 44 is connected to one side of the partition plate 11 located in the fan chamber 41, an opening 46 is formed between a lower end of the baffle plate 45 and the partition plate 11, the opening 46 is communicated with the through hole 44 to form a louver 61, and the baffle plate 45 can block the through hole 44 to prevent rainwater from directly entering the through hole 44.

The baffle 45 may be integrally formed with the partition 11, or the baffle 45 and the partition 11 may be separately connected.

Alternatively, referring to fig. 10 and 11, the arrows indicate the direction of the air flow, the air duct 43 may be provided in the form of a double-layer louver 60, a first louver 61 is provided on the side of the blower chamber 41 at the partition 11, a second louver 62 is provided on the side of the compressor chamber 42 at the partition 11, and the first louver 61 and the second louver 62 communicate to form the air duct 43. The first louver holes 61 and the second louver holes 62 enable the air duct 43 to become zigzag, the outer walls of the two louver holes form double-layer blocking for rain water, the difficulty of rain water entering the electric control board 30 through the air duct 43 can be further increased, and the effect of rain water prevention can be achieved while an effective air duct is formed.

The openings of the first louver holes 61 and the second louver holes 62 are opposite, for example, the opening of the first louver hole 61 faces downwards, the opening of the second louver hole 62 faces upwards, and the first louver hole 61 and the second louver hole 62 can be bent at an obtuse angle while rainwater is prevented from being drenched, so that resistance to airflow is reduced, and smooth passing of the airflow is guaranteed.

In other embodiments, the first louvers 61 open upward and the second louvers 62 open downward; or the openings of the first and second louvers 61, 62 may be oriented horizontally, such as one facing forward and the other facing rearward, while still achieving the objectives of the present disclosure.

Specifically, the air duct 43 may be provided at a joint of the partition plate 11 and the mounting plate 50, the partition plate 11 being provided with a first louver 61 extending toward the blower chamber 41, and the joint portion 51 being provided with a second louver 62 extending toward the press chamber 42. Thus, the first louver 61 can be integrally formed on the partition plate 11, and the second louver 62 can be integrally formed on the mounting plate 50, which is simple to manufacture and does not increase the cost.

In other embodiments, two sides of the partition 11 may be separately connected with a baffle 45 to form a first louver 61 and a second louver 62. Alternatively, the baffle plate 45 is separately connected to one side of the partition plate 11, a first louver hole 61 is formed between the baffle plate and the partition plate 11, and a second louver hole 62 is integrally formed on the other side of the partition plate 11.

With continued reference to fig. 11, in the longitudinal section of the air duct 43, the end of the baffle 45 connected to the partition 11 is the root of the louver 60, and the opening 46 formed by the baffle 45 and the partition 11 is the opening end of the louver 60. The vertical distance from the root of the louver 60 to the open end thereof is f, and the distance from the root of the first louver 61 to the root of the second louver 62 is e, the relationship between e and f is satisfied: e is more than 0 and less than 2f, thus, e is more than 0 and can ensure the communication of the air duct 43, e is less than 2f and can ensure that the two baffles 45 forming the two layers of louver holes 60 form a block in the direction vertical to the partition plate 11, thereby playing the role of rain water prevention.

The less the e value is, the effect of preventing drenching with rain is better, and nevertheless the ventilation flue 43 is narrower be unfavorable for the air current heat dissipation air current to pass through, and the more the e value is big, and ventilation flue 43 widen, and the radiating effect is good, nevertheless prevents that the effect of drenching with rain can weaken, for compromise radiating effect and prevent the effect of drenching with rain, further set up the relation of e, f in this disclosure and satisfy: e is not less than 1/3f and not more than 2/3f, so that the heat dissipation effect and the rain-proof effect can be both considered, the heat dissipation effect of the air duct 43 can be ensured, and the rain-proof effect of the baffle 45 can be ensured.

In addition, the width of the opening end of the louver hole 60 is h, if the h is set to be larger, the difficulty of rainwater entering the electric control board 30 from the air duct 43 can be weakened, so that the h is set to be less than or equal to 5mm in the disclosure, and a better rain-proof effect can be achieved.

With continued reference to fig. 10, the heat dissipation airflow in the press cavity 42 must enter the fan cavity 41 through the air duct 43, so the present disclosure provides the heat sink 32 and the fan module 31 at one end of the electronic control board 30 close to the partition 11, and the heat sink 32 is close to and corresponding to the air duct 43, so that the heat sink 32 is completely located in the airflow flowing range near the air duct 43, and a better heat dissipation effect is achieved.

In addition, the radiator 32 and the air duct 43 are disposed near the upper end of the outdoor unit of the air conditioner, so that it is possible to reduce rainwater carried by the fan 20 from reaching the air duct 43.

With continued reference to fig. 6 and 10, the heat sink 32 has a plurality of parallel fins 321, the spacing between the fins 321 forms the heat dissipation channel 322, and the direction of the fins 321 is substantially parallel to the airflow direction, so that the contact area between the heat sink 32 and the airflow can be increased, and the heat dissipation effect can be further increased.

In some embodiments of the present disclosure, the area occupied by the air duct 43 at the partition 11 is not smaller than the projection area of the heat sink 32 on the partition 11, so that the air flow can completely cover the heat sink 32, and the heat dissipation effect of the heat sink 32 can be ensured.

In some embodiments of the present disclosure, if the fan module 31 and the heat sinks 32 have a plurality of heat sinks 32, and if the plurality of heat sinks 32 intersect on the projection of the vertical plane of the airflow, indicating that there is a front-back arrangement between the heat sinks 32 on the airflow flow path, the airflow first passes through the next heat sink 32, the temperature rises, and then the efficiency of taking away the heat of the next heat sink 32 is affected, so that the heat of the heat sink 32 is not uniformly radiated. Therefore, the radiators 32 are arranged in a non-intersecting manner on the projection of the vertical plane of the air flow, so that the heat of all the radiators 32 can be uniformly taken away by the air flow, the uneven heat dissipation of the radiators 32 cannot be caused, and the uniform heat dissipation effect of all the radiators 32 is ensured.

According to the present disclosure, the partition 11 is provided with the ventilation channel 43, so that when the fan 20 rotates, the airflow in the pressing cavity 42 can flow into the fan cavity 41 from the ventilation channel 43, and the fan module 31 and the radiator 32 are arranged in the airflow flowing range, so that the airflow can take away the heat in the radiator 32, thereby accelerating the heat dissipation of the fan module 31 and further reducing the temperature of the fan module 31; further, the fins 321 provided in the heat sink 32 are arranged in a direction substantially parallel to the airflow direction, so that the contact area between the heat sink 32 and the airflow can be increased, and the heat radiation effect can be further increased.

According to the present disclosure, the heat sink 32 and the fan module 31 are disposed on the electric control board 30 on a side close to the air duct 43, so that the airflow near the air duct 43 can be fully utilized, and the heat dissipation effect can be further improved.

According to the present disclosure, the ventilation duct 43 of the outdoor unit of the air conditioner is configured as the double-layer louver 60, so that rainwater can be effectively prevented from entering the electric control board 30 through the ventilation duct 43, and a better rainwater-proof effect is achieved.

According to the present disclosure, the air conditioner outdoor unit has a plurality of radiators 32 that do not intersect with each other in the projection of the vertical plane of the air flow, so that the uniformity of heat dissipation of the radiators 32 can be achieved.

In the description of the present invention, 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 merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

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 invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (12)

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

a housing defining an accommodating space therein;

the partition plate is arranged in the shell and divides the accommodating space into a fan cavity and a press cavity, and a ventilation channel for communicating the fan cavity with the press cavity is arranged at the partition plate;

the electric control board is arranged in the press cavity, a fan module and a radiator are arranged on the electric control board, and the radiator is connected with the fan module and arranged corresponding to the ventilation duct; and

the fan is arranged in the fan cavity, and the fan can enable the airflow in the press cavity to flow into the fan cavity through the ventilation channel in the rotating process so as to take away the heat on the radiator;

wherein the air duct is formed by a louver hole provided on the partition plate.

2. The outdoor unit of claim 1, wherein the louver hole is formed at the side of the blower chamber and opened toward the bottom of the casing.

3. The outdoor unit of claim 1, wherein the louver holes include a first louver hole provided at one side of the partition, and a second louver hole provided at the other side of the partition, the first louver hole and the second louver hole being communicated and opened in opposite directions.

4. The outdoor unit of claim 3, wherein one of the first louver and the second louver is opened toward a bottom of the casing, and the other is opened toward a top of the casing.

5. The outdoor unit of claim 3, wherein one of the first louver and the second louver has a front opening and the other has a rear opening.

6. The outdoor unit of claim 3, wherein a distance from a root of the first louver to a root of the second louver is e, and a vertical distance from the root of the first louver or the second louver to an open end thereof is f, and 0 < e < 2 f.

7. The outdoor unit of claim 6, wherein 1/3f e 2/3 f.

8. The outdoor unit of claim 3, further comprising:

the mounting plate is attached and connected with the partition plate;

the partition board is provided with the first louver holes, and the mounting plate is provided with the second louver holes.

9. An outdoor unit of an air conditioner according to claim 8, wherein the mounting plate is provided with an intersecting portion which is connected to the partition at an angle, and the electric control plate is mounted on the intersecting portion.

10. The outdoor unit of claim 1, wherein the width of the open end of the louver hole is h, h ≦ 5 mm.

11. The outdoor unit of claim 1, wherein the heat sink has a plurality of heat sinks, and the plurality of heat sinks do not intersect with each other in a projection of a vertical plane of the air flow.

12. The outdoor unit of claim 1, wherein the radiator is disposed on a side of the electric control board adjacent to the air duct so that the radiator is within a flow range of an air current near the air duct.

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