CN221975362U - Air conditioner outdoor unit, electric control box and heat dissipation structure thereof - Google Patents

Abstract

The utility model discloses an air conditioner outdoor unit, an electric control box and a heat dissipation structure thereof, comprising a wind-blocking vertical plate, an electrical housing, a main board and an electrical cover plate; the electrical housing is fixed on the wind-blocking vertical plate; the main board is fixed in the electrical housing, the main board comprises a compressor electric control area and a fan electric control area, a first radiator is installed on the electrical housing, the first radiator and the main board are respectively located on both sides of the wind-blocking vertical plate, a second radiator is installed on the main board, the second radiator is located in front of the main board, a first vent is provided on the main board, a second vent is provided on the electrical housing, and the second vent is located at the rear side of the main board; the electrical cover plate is fixed on the electrical housing, a third vent connected to the inside of the electrical housing is provided on the electrical cover plate, and the third vent is located at the front side of the main board; a fourth vent is provided on the wind-blocking vertical plate, and the fourth vent is located at the rear side of the electrical housing. The above structure can effectively ensure the heat dissipation effect of the main board and reduce the failure rate of the electric control components.

Description

Air conditioner outdoor unit, electric control box and heat dissipation structure thereof

Technical Field

The utility model relates to the field of air conditioners, in particular to an air conditioner outdoor unit, an electric control box and a heat dissipation structure thereof.

Background Art

The control motherboard of the air conditioner outdoor unit has strict temperature requirements. Generally speaking, the life of components shortens with increasing temperature, the most obvious of which is the electrolytic capacitor. An electrolytic capacitor with a maximum operating temperature of 85°C has a life of 1,000 hours at an operating temperature of 85°C, and can reach 10,000 hours at 60°C, and 80,000 hours at 40°C. An environment with excellent heat dissipation conditions can greatly increase the service life of the controller and reduce the after-sales maintenance rate of the controller.

The heating module of the air conditioner outdoor unit controller motherboard mainly has two major areas. One is the compressor control module, whose radiator is installed on the back of the motherboard, and the radiator is installed on the side of the axial fan blade through the wind-proof plate. The compressor control module radiator here can take away the heat generated by the components through the circulating air of the fan blade, thereby achieving cooling; the other heating module is the axial fan motor control module, where a radiator is installed on the front of the motherboard. Due to the priority of the motherboard space, the fan module radiator is about 1/10 of the size of the compressor module radiator; at the same time, since the radiator installation position here cannot directly contact the circulating air on the axial fan blade side, the temperature here is very likely to exceed the temperature rise test standard, resulting in a short life of the fan module and a high failure rate.

Utility Model Content

In order to solve the problem in the prior art that the radiator used for the fan electronic control module is small in size and has poor heat dissipation, resulting in a high mainboard failure rate, the purpose of the utility model is to provide an air-conditioning outdoor unit, an electronic control box and a heat dissipation structure thereof, which can effectively improve the heat dissipation capacity of the electronic control box and reduce the failure rate of the electronic controller.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a heat dissipation structure of an electric control box, including a wind-proof vertical plate, an electrical housing, a main board and an electrical cover plate; the electrical housing is fixed on the wind-proof vertical plate; the main board is fixed in the electrical housing, the main board includes a compressor electrical control area and a fan electrical control area, a first radiator for dissipating heat in the compressor electrical control area is installed on the electrical housing, the first radiator and the main board are respectively located on both sides of the wind-proof vertical plate, a second radiator for dissipating heat in the fan electrical control area is installed on the main board, the second radiator is located in front of the main board, a first vent is provided on the main board, a second vent is provided on the electrical housing, and the second vent is located on the rear side of the main board; the electrical cover plate is fixed on the electrical housing, a third vent connected to the interior of the electrical housing is provided on the electrical cover plate, and the third vent is located on the front side of the main board; a fourth vent is provided on the wind-proof vertical plate, and the fourth vent is located on the rear side of the electrical housing.

Preferably, the third vent is located below the main board.

Preferably, the plurality of third vents are arranged vertically.

Preferably, a plurality of fourth ventilation openings are arranged in an array.

Preferably, the first vent is located above the second radiator.

Preferably, the second vent and the fourth vent are inverted vents.

An electric control box comprises the heat dissipation structure of the electric control box.

The heat dissipation structure of the electrical control box also includes an external housing, and a wind-blocking plate is fixed inside the external housing. The wind-blocking plate divides the external housing into a fan chamber and a mechanical chamber. The electrical housing is arranged in the mechanical chamber, and the mechanical chamber and the fan chamber are connected through a fourth vent. The electrical cover is arranged on the external housing, and the third vent can connect the outside of the external housing and the inside of the electrical housing.

Preferably, a fan is installed in the fan cavity, and after the fan is started, air can enter the fan cavity from the rear side of the fan, and the air in the fan cavity can be discharged from the outer casing from the front side of the fan; the fourth vent is located at the rear side of the fan.

An air conditioner outdoor unit comprises the heat dissipation structure of the above-mentioned electric control box.

The beneficial effect of the technical solution of the utility model is that the third vent, the first vent, the second vent and the fourth vent are combined to form an air duct that flows through the main board and the second radiator, thereby effectively dissipating the heat inside the electric control box and reducing the failure rate of the electric control components.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the structure of an air conditioner outdoor unit from a top view;

FIG2 is a structural schematic diagram of an electric control box;

FIG3 is a second structural diagram of the electric control box;

FIG. 4 is a schematic diagram of the structure of the electrical appliance housing.

Figure numerals: 1. external machine casing; 2. wind-shielding vertical plate; 3. mechanical cavity; 4. fan cavity; 5. electrical casing; 6. electrical cover; 7. third vent; 8. main board; 9. first vent; 10. second radiator; 11. second vent; 12. fourth vent; 13. first radiator; 14. condenser; 15. fan.

DETAILED DESCRIPTION

The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more, unless otherwise clearly defined.

In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

Example

As shown in Figures 1-4, a heat dissipation structure of an electric control box includes a wind-proof vertical plate 2, an electrical housing 5, a main board 8 and an electrical cover 6; the electrical housing 5 is fixed on the wind-proof vertical plate 2; the main board 8 is fixed in the electrical housing 5, the main board 8 includes a compressor electronic control area and a fan electronic control area, a first radiator 13 for dissipating heat in the compressor electronic control area is installed on the electrical housing 5, the first radiator 13 and the main board 8 are respectively located on both sides of the wind-proof vertical plate 2, a second radiator 10 for dissipating heat in the fan electronic control area is installed on the main board 8, the second radiator 10 is located in front of the main board 8, a first vent 9 is provided on the main board 8, a second vent 11 is provided on the electrical housing 5, and the second vent 11 is located at the rear side of the main board 8; the electrical cover 6 is fixed on the electrical housing 5, a third vent 7 connected to the inside of the electrical housing 5 is provided on the electrical cover 6, and the third vent 7 is located in front of the main board 8; a fourth vent 12 is provided on the wind-proof vertical plate 2, and the fourth vent 12 is located at the rear side of the electrical housing 5, so as to improve the service life of components.

In this way, the third vent 7, the first vent 9, the second vent 11 and the fourth vent 12 are combined to form an air duct that flows through the main board 8 and the second radiator 10, thereby effectively dissipating the heat inside the electric control box and reducing the failure rate of the electric controller.

In this embodiment, the third vent 7 is preferably located below the mainboard 8; a plurality of third vents 7 are arranged vertically; a plurality of fourth vents 12 are arranged in an array; and the first vent 9 is located above the second radiator 10. Such an arrangement can effectively ensure that sufficient air flows in the air duct.

In this embodiment, the second vent 11 and the fourth vent 12 are preferably inverted vents. Such a configuration is conducive to increasing the opening ventilation area, increasing the air circulation efficiency, and improving the heat exchange efficiency; the inverted form is mainly to prevent external water droplets from flowing into the electric control box. The inverted ventilation grille of the wind-blocking vertical plate 2 is also designed to ensure ventilation while having a waterproof function.

An electric control box comprises the heat dissipation structure of the electric control box.

In this embodiment, the heat dissipation structure of the electrical control box includes an external housing 1, and a wind-blocking plate 2 is fixed inside the external housing 1. The wind-blocking plate 2 divides the external housing 1 into a fan cavity 4 and a mechanical cavity 3. The electrical housing 5 is arranged in the mechanical cavity 3, and the mechanical cavity 3 and the fan cavity 4 are connected through the fourth vent 12; the electrical cover 6 is arranged on the external housing 1, and the third vent 7 can connect the outside of the external housing 1 and the inside of the electrical housing 5.

Further preferably, a fan 15 is installed in the fan cavity 4. After the fan 15 is started, air can enter the fan cavity 4 from the rear side of the fan 15, and the air in the fan cavity 4 can be discharged from the outer casing 1 from the front side of the fan 15; the fourth vent 12 is located at the rear side of the fan 15.

An air conditioner outdoor unit includes the above-mentioned electric control box and the heat dissipation structure of the above-mentioned electric control box. A condenser 14 is also installed on the outdoor unit housing 1. The axial flow blades of the fan 15 divide the fan cavity 4 into a blade rear cavity and a blade front cavity. The pressure in the frame outdoor unit is as follows: blade front cavity < blade rear cavity < mechanical cavity 3; therefore, the air outside the air conditioner outdoor unit passes through the third vent 7, the first vent 9, the second vent 11, the fourth vent 12, the blade rear cavity and the blade front cavity in sequence and is discharged from the front side of the extension.

In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims (10)

1. A heat dissipation structure of an electric control box, characterized by comprising a wind-shielding vertical plate (2), an electric housing (5), a main board (8) and an electric cover plate (6); The electrical appliance housing (5) is fixed on the windproof vertical plate (2); The main board (8) is fixed in the electrical housing (5), the main board (8) comprises a compressor electric control area and a fan electric control area, a first radiator (13) for dissipating heat for the compressor electric control area is installed on the electrical housing (5), the first radiator (13) and the main board (8) are respectively located on both sides of the wind-blocking vertical plate (2), a second radiator (10) for dissipating heat for the fan electric control area is installed on the main board (8), the second radiator (10) is located in front of the main board (8), a first vent (9) is provided on the main board (8), a second vent (11) is provided on the electrical housing (5), and the second vent (11) is located on the rear side of the main board (8); The electrical appliance cover plate (6) is fixed on the electrical appliance housing (5), and a third ventilation opening (7) communicating with the interior of the electrical appliance housing (5) is provided on the electrical appliance cover plate (6), and the third ventilation opening (7) is located on the front side of the main board (8); A fourth ventilation opening (12) is provided on the wind-blocking vertical plate (2), and the fourth ventilation opening (12) is located at the rear side of the electrical appliance housing (5). 2. The heat dissipation structure of an electric control box according to claim 1, characterized in that the third vent (7) is located below the main board (8). 3. The heat dissipation structure of an electric control box according to claim 1, characterized in that: a plurality of third vents (7) are arranged vertically. 4. The heat dissipation structure of an electric control box according to claim 1, characterized in that: a plurality of fourth ventilation openings (12) are arranged in an array. 5. The heat dissipation structure of an electric control box according to claim 1, characterized in that the first vent (9) is located above the second radiator (10). 6. The heat dissipation structure of an electric control box according to claim 1, characterized in that the second vent (11) and the fourth vent (12) are inverted vents. 7. A heat dissipation structure of an electric control box according to claim 1, characterized in that it also includes an external housing (1), a wind-blocking plate (2) fixed inside the external housing (1), the wind-blocking plate (2) dividing the external housing (1) into a fan chamber (4) and a mechanical chamber (3), an electrical housing (5) arranged in the mechanical chamber (3), the mechanical chamber (3) and the fan chamber (4) being connected via a fourth vent (12); an electrical cover (6) arranged on the external housing (1), and the third vent (7) being able to connect the outside of the external housing (1) with the inside of the electrical housing (5). 8. A heat dissipation structure of an electric control box according to claim 7, characterized in that: a fan (15) is installed in the fan cavity (4), and after the fan (15) is started, air can enter the fan cavity (4) from the rear side of the fan (15), and the air in the fan cavity (4) can be discharged from the outer housing (1) from the front side of the fan (15); and the fourth ventilation port (12) is located at the rear side of the fan (15). 9. An electric control box, characterized by comprising a heat dissipation structure of an electric control box according to any one of claims 1 to 6. 10. An air conditioner outdoor unit, characterized by comprising a heat dissipation structure of an electric control box according to any one of claims 1 to 8.