CN115342445A

CN115342445A - Air condensing units and air conditioning equipment

Info

Publication number: CN115342445A
Application number: CN202211013911.9A
Authority: CN
Inventors: 潘成飞; 孙世孔; 钟国柱
Original assignee: GD Midea Heating and Ventilating Equipment Co Ltd; Hefei Midea Heating and Ventilating Equipment Co Ltd
Current assignee: GD Midea Heating and Ventilating Equipment Co Ltd; Hefei Midea Heating and Ventilating Equipment Co Ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2022-11-15

Abstract

The embodiment of the application provides an air condensing units and air conditioning equipment, can improve the radiating effect of automatically controlled box during refrigeration work, and simple structure, it is with low costs. The outdoor unit of an air conditioner includes: the shell is provided with a heat exchange air duct; the electric control box is connected with the shell; the first air guide piece is arranged in the heat exchange air channel and surrounds the first heat dissipation air channel communicated with the heat exchange air channel with the electric control box; and the first radiator is positioned in the first radiating air channel, is connected with the electric control box and is arranged for radiating heat of the electric control box.

Description

Air condensing units and air conditioning equipment

Technical Field

The application relates to but is not limited to the technical field of air treatment equipment, in particular to an air conditioner outdoor unit and air conditioning equipment.

Background

At present, an electric control board of an air conditioner outdoor unit can generate a large amount of heat when in work. If the electric control board has poor heat dissipation, the frequency of the compressor can be limited if the electric control board is light, the refrigeration effect is influenced, and the user experience is poor; and the aging and failure accidents of the electric control board elements can be caused, and the reliability of the air conditioner is influenced.

At present, in order to enhance the heat dissipation effect of the electric control board, the following two schemes are mainly adopted: 1) A first radiator is arranged at a heating part of the electric control board, the first radiator is arranged in an air duct of the outdoor unit of the air conditioner, and the heat of the first radiator is taken away by the air flow flowing through the outdoor heat exchanger. When the air conditioner works in a refrigerating mode, the outdoor heat exchanger generates a large amount of heat, so that the temperature of air flow flowing through the first radiator of the electric control box is high, and the radiating effect is poor; 2) There is also a scheme of adopting a water pump circulating system to radiate heat for the electric control plate, but the scheme has a complex structure and high cost.

Disclosure of Invention

The technical problem that this application will be solved provides an air condensing units, can improve the radiating effect of automatically controlled box during refrigeration work, and simple structure, it is with low costs.

The embodiment of the application provides an air condensing units, includes: the heat exchanger comprises a shell, a heat exchanger and a heat exchanger, wherein the shell is provided with a heat exchange air duct, and a fan is arranged in the heat exchange air duct; the electric control box is connected with the shell; the first air guide piece is arranged in the heat exchange air channel and surrounds the first heat dissipation air channel communicated with the heat exchange air channel with the electric control box; and the first radiator is positioned in the first radiating air channel, is connected with the electric control box and is arranged for radiating heat of the electric control box.

Compared with the scheme without the first air guide piece, the scheme has the advantages that the first air guide piece is additionally arranged, so that the first heat dissipation air channel for heat dissipation of the first radiator is formed in the heat exchange air channel, the airflow field near the first radiator can be changed, the airflow speed flowing through the first radiator is increased, the heat dissipation efficiency of the first radiator is improved, and the heat dissipation effect of the electric control box in various operation modes (including a refrigeration mode) is further improved. Compare in adopting water pump circulation system to be the radiating scheme of automatically controlled board, this scheme structure is comparatively simple, and is with low costs.

On the basis of the technical scheme, the method can be further improved as follows.

In an exemplary embodiment, the first heat dissipation air duct is provided with a first air inlet and a first air outlet, the first air inlet is communicated with an external space, and the first air outlet is communicated with the heat exchange air duct.

In an exemplary embodiment, the first air inlet is disposed at the bottom of the first heat dissipation air duct, and the top of the first heat dissipation air duct is open to form the first air outlet.

In an exemplary embodiment, the first air guiding member is provided with a plate-shaped air guiding portion, the air guiding portion is located at the first air outlet and extends obliquely towards a direction away from the electronic control box and away from the bottom wall of the casing along the airflow direction of the first heat dissipation air duct.

In an exemplary embodiment, the bottom of the first heat dissipation air duct is further provided with an air vent, and the air vent is communicated with the heat exchange air duct.

In an exemplary embodiment, the first heat dissipation air duct includes: the first air inlet is formed in one end of the transverse section; and the vertical section is communicated with the other end of the transverse section and extends towards the direction close to the top wall of the casing, the first radiator is positioned in the vertical section, the vertical section is close to the one end of the top wall of the casing is opened and is formed by the first air outlet, and the vertical section is far away from one end of the top wall of the casing is provided with the air vent.

In an exemplary embodiment, the electronic control box includes an electronic control portion and an extension portion, the electronic control portion is connected to the first heat sink, the extension portion is connected to a bottom wall of the casing, and the first air guide includes: side coamings and a bottom plate; the side coaming plate is covered on the first radiator and surrounds the vertical section with the electric control part and the bottom plate, and the upper end of the side coaming plate surrounds the first air outlet with the electric control part; the bottom plate with the lower extreme of side bounding wall links to each other, the bottom plate with the diapire of automatically controlled portion and the extension surrounds out horizontal section, first air intake is located the extension, the bottom plate is less than first air intake, the blow vent is located the bottom plate.

In an exemplary embodiment, one end of the side enclosing plate is clamped with the first heat sink, the other end of the side enclosing plate is connected with the first heat sink through a first fastener, and the bottom plate is connected with the extending portion through a second fastener.

In an exemplary embodiment, a second heat dissipation air duct is arranged in the electric control box.

In an exemplary embodiment, the second heat dissipation air duct is provided with a second air inlet and a second air outlet, the second air inlet is communicated with an external space, and the second air outlet is communicated with the heat exchange air duct.

In an exemplary embodiment, the outdoor unit of an air conditioner further includes: the second air guide piece is arranged in the heat exchange air duct and is opposite to the second air outlet; and the second air guide piece shields the second air outlet, an air guide space is formed between the second air outlet and the second air outlet, the air guide space is provided with an air outlet communicated with the heat exchange air channel, and the air outlet is positioned at the bottom of the air guide space.

In an exemplary embodiment, the outdoor unit of an air conditioner further includes: the water baffle is arranged in the air guide space, shields the second air outlet and forms a first air passing channel with the second air outlet; a second air passing channel is formed between the water baffle and the second air guide piece; along the air current flow direction, first air passing channel extends to the direction of keeping away from the gas outlet, second air passing channel extends to the direction that is close to the gas outlet.

In an exemplary embodiment, the bottom of the water baffle is lower than the second air outlet, and the top of the water baffle is not lower than the second air outlet; the bottom of the second air guide piece is lower than the bottom of the water baffle.

In an exemplary embodiment, the bottom of the water baffle is connected with the electronic control box, and the top of the water baffle extends obliquely to the direction close to the second air guide.

In an exemplary embodiment, the housing includes: the box body is connected with the electric control box and is provided with a third air inlet; the chassis is connected with the bottom of the box body and the bottom of the electric control box; and the top cover is covered on the top of the box body and the top of the electric control box, the top cover is provided with a third air outlet, and the second air guide piece is connected with the top cover and arranged along the circumferential direction of the third air outlet.

In an exemplary embodiment, the side wall of the housing is provided with a mounting notch, and the electrical control box includes: the box body is connected with the shell and covers the upper part of the installation gap, and the first radiator is connected with the box body; the first cover plate is covered on the box body and surrounds an installation space with the box body, and the bottom of the installation space is opened; the electric control plate is arranged in the mounting space; the second cover plate is used for sealing the lower part of the installation gap and the bottom open end of the installation space, and the second cover plate is provided with an avoidance gap for avoiding the refrigerant pipe; wherein the box body, the first cover plate and the electric control plate form an electric control part, and the second cover plate forms an extension part.

In an exemplary embodiment, a second heat dissipation air duct is disposed in the electronic control box, and the second heat dissipation air duct is provided with a second air inlet communicated with an external space and a second air outlet communicated with the heat exchange air duct, wherein: the second air inlet is formed in the second cover plate, and the second air outlet is formed in the box body; the second air inlet comprises at least one of the following: the air inlet is arranged on the second cover plate, the wire passing hole is arranged on the second cover plate, the assembly gap between the second cover plate and the box body is formed, and the assembly gap between the second cover plate and the first cover plate is formed.

The embodiment of the present application further provides an air conditioning equipment, including: an air-conditioning indoor unit; and the air conditioner outdoor unit in any one of the above embodiments, connected to the air conditioner indoor unit.

Drawings

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

fig. 2 is an exploded view of the outdoor unit of the air conditioner shown in fig. 1 (without the first air guide member);

FIG. 3 is an exploded view of the box and the outdoor heat exchanger in FIG. 2;

fig. 4 is a schematic structural view of the top cover and the air guide member in fig. 2;

fig. 5 is a schematic cross-sectional view of the outdoor unit of the air conditioner shown in fig. 1 (the first air guide is omitted), wherein solid arrows indicate the airflow direction;

FIG. 6 is an exploded view of the top cover, the air guide member, the electric control plate and the water guard plate shown in FIG. 2;

FIG. 7 is an assembled view of the structure of FIG. 6;

FIG. 8 is an enlarged view of section A of FIG. 7, wherein the dashed arrows indicate rain water and the arrows indicate air flow;

fig. 9 is a schematic perspective view of a box body of the electronic control box in fig. 2;

FIG. 10 is a schematic perspective view of the cartridge of FIG. 9 from another perspective;

fig. 11 is another exploded view of the outdoor unit of fig. 1;

FIG. 12 is an enlarged view of the portion B of FIG. 11;

fig. 13 is another sectional view of the outdoor unit of the air conditioner shown in fig. 1, in which solid arrows indicate the flow direction of air;

fig. 14 is a schematic perspective view of a first wind guiding component according to an embodiment of the present application;

fig. 15 is a schematic structural view of an assembled electronic control portion of an electronic control box and a first air guide according to an embodiment of the present application;

FIG. 16 is a cross-sectional schematic view of the structure shown in FIG. 15, wherein solid arrows indicate gas flow directions;

fig. 17 is an exploded schematic view of the electric control unit and the first wind guide shown in fig. 15;

fig. 18 is a schematic view of the structure of fig. 17 from another perspective.

In the drawings, the components represented by the respective reference numerals are listed below:

1, a machine shell, 11 boxes, 111 installation gaps, 112 third air inlets, 12 chassis, 13 top covers, 131 third air outlets and 14 heat exchange air ducts;

2, an electric control box, 21, 211, a second air outlet, 22, a first cover plate, 23, an electric control plate, 24, a second cover plate, 241 top plates, 2411, a second air inlet, 242 side plates, 2421 avoiding notches, 25 second radiators, 26 second radiating air ducts, 27 electric control parts and 28 extending parts;

3, a second air guide piece, a 31 air guide space, 311 a first air passing channel, 312 a second air passing channel and 32 air outlets;

4, a water baffle, 41, a water baffle part, 411, a first sub-plate, 412, a second sub-plate, 413, a third sub-plate and 42;

5 blower, 51 motor, 52 rotating fan blade;

6, an outdoor heat exchanger;

7, a compressor;

8, a first air guide piece, a 81-side enclosing plate, a 811 clamping hook, a 82 bottom plate, an 83 air guide part, 84 a first heat dissipation air duct, 841 a first air inlet, 842 a first air outlet, 843 an air vent, 844 transverse sections, 845 vertical sections, 85 a first connecting hole, 86 a second connecting hole and 87 a first fastener;

9 first heat sink, 91 bayonet.

Detailed Description

The principles and features of this application are described below in conjunction with the following drawings, the examples of which are set forth to illustrate the application and are not intended to limit the scope of the application.

As shown in fig. 1, 12 and 13, an embodiment of the present application provides an outdoor unit of an air conditioner, including: the electronic control box comprises a machine shell 1, an electronic control box 2, a first radiator 9 and a first air guide 8.

As shown in fig. 13, the casing 1 is provided with a heat exchange air duct 14, and a fan 5 is provided in the heat exchange air duct 14. An outdoor heat exchanger 6 is also arranged in the heat exchange air duct 14. The electric control box 2 is connected with the machine shell 1 and can be fixedly connected through fasteners such as screws and the like. The first air guiding member 8 is disposed in the heat exchange air duct 14, and encloses a first heat dissipation air duct 84 communicated with the heat exchange air duct 14 with the electronic control box 2, as shown in fig. 15 and 16. The first heat sink 9 is located in the first heat dissipation air duct 84, as shown in fig. 13 and 16, and is connected to the electronic control box 2, and configured to dissipate heat from the electronic control box 2.

The air conditioner outdoor unit provided by the embodiment of the application comprises a machine shell 1, an electric control box 2, a first radiator 9 and a first air guide member 8. The shell 1 is provided with a heat exchange air duct 14, and the fan 5 and the outdoor heat exchanger 6 can be arranged in the heat exchange air duct 14. The fan 5 operates to generate negative pressure in the heat exchange air duct 14, so that the outside air can flow through the heat exchange air duct 14 to exchange heat with the outdoor heat exchanger 6, as shown in fig. 5 and 13. The first radiator 9 is connected with the electric control box 2, absorbs and dissipates heat of the electric control box 2 to ambient air by utilizing heat conduction, and plays a role in radiating the electric control box 2. The first air guide 8 is located in the heat exchange air duct 14, and surrounds the first heat dissipation air duct 84 with the electronic control box 2. The first heat-dissipation air duct 84 is used for heat exchange between air flow and the first heat sink 9, and taking away heat of the first heat sink 9. The first air guide 8 separates the first radiator 9 from the outdoor heat exchanger 6, so that the first radiator 9 is located in a single first single-person air duct 84. Since the first heat dissipation air duct 84 is communicated with the heat exchange air duct 14, the heat in the first heat dissipation air duct 84 can be dissipated into the heat exchange air duct 14, as shown in fig. 13. In this way, the first heat dissipation air duct 84 and the heat exchange air duct 14 can share one fan 5, which is beneficial to simplifying the product structure, reducing the product cost,

compared with the scheme without the first air guide 8, the scheme has the advantages that the first air guide 8 is additionally arranged, so that the first heat dissipation air duct 84 for dissipating heat of the first radiator 9 is formed in the heat exchange air duct 14, the airflow field near the first radiator 9 can be changed, the airflow speed flowing through the first radiator 9 is increased, the heat dissipation efficiency of the first radiator 9 is improved, and the heat dissipation effect on the electronic control box 2 in various operation modes (including a refrigeration mode) is further improved. Compare in adopting water pump circulation system to be the radiating scheme of automatically controlled board 23, this scheme structure is comparatively simple, and is with low costs.

The compressor 7, the piping, and other structures may be provided in the heat exchange air duct 14, as shown in fig. 5 and 13.

Alternatively, the compressor 7 and the piping may be provided in a press chamber, and the press chamber and the heat exchange air duct 14 may be partitioned by a partition plate. The electronic control box 2 can be arranged in the press cavity or the heat exchange air duct 14.

In one example, the fan 5 is an axial flow fan 5 and the heat exchange duct 14 forms an axial flow duct. The first heat sink 9 includes a plurality of heat dissipating fins arranged side by side, and a top portion of the first heat sink 9 extends downward in a direction close to a central axis of the fan 5 to avoid the fan 5, as shown in fig. 13.

The first heat sink 9 may be an aluminum heat sink.

In an exemplary embodiment, as shown in fig. 13, the first heat dissipating air duct 84 is provided with a first air inlet 841 and a first air outlet 842, the first air inlet 841 is communicated with an external space, and the first air outlet 842 is communicated with the heat exchanging air duct 14.

Thus, the first heat dissipation air duct 84 is communicated with the external space through the first air inlet 841, and the first heat dissipation air duct 84 is communicated with the heat exchange air duct 14 through the first air outlet 842, so that the first air inlet 841, the first heat dissipation air duct 84, the first air outlet 842, and the heat exchange air duct 14 are sequentially communicated. In the using process, negative pressure is generated in the heat exchange air duct 14, so that negative pressure is also generated in the first heat dissipation air duct 84 communicated with the heat exchange air duct 14, and therefore, the outside air can enter the first heat dissipation air duct 84 through the first air inlet 841, exchange heat with the first heat sink 9 in the first heat dissipation air duct 84, take away heat of the first heat sink 9, enter the heat exchange air duct 14 through the first air outlet 842, and is discharged out of the casing 1 along with the air flow in the heat exchange air duct 14.

Compared with the method that air in the heat exchange air duct 14 enters the first heat dissipation air duct 84 to exchange heat with the first heat sink 9, the method is beneficial to further improving the heat dissipation efficiency of the first heat sink 9 due to the lower temperature of the outside air, and further improving the heat dissipation effect of the electronic control box 2.

In an exemplary embodiment, as shown in fig. 13, the first air inlet 841 is disposed at the bottom of the first heat dissipation air duct 84, and the top of the first heat dissipation air duct 84 is opened to form the first air outlet 842.

According to the principle that cold air sinks and hot air rises, the first air inlet 841 is arranged at the lower side, the first air outlet 842 is arranged at the upper side, so that the cold air at the lower part is conveniently sucked into the first heat dissipation air duct 84, and the hot air after heat exchange with the first heat sink 9 is conveniently discharged upwards, therefore, the heat dissipation efficiency of the first heat sink 9 is further improved, and the heat dissipation effect of the electronic control box 2 is further improved.

The top of the first heat dissipation air duct 84 is open to form the first air outlet 842, which is beneficial to increase the area of the first air outlet 842, so as to improve the air flow of the first heat dissipation air duct 84, and is also beneficial to improve the heat dissipation efficiency of the first heat sink 9, and improve the heat dissipation effect of the electronic control box 2.

In an exemplary embodiment, as shown in fig. 13, 16 and 18, the first wind guide 8 is provided with a plate-shaped wind guide portion 83, and the wind guide portion 83 is located at the first wind outlet 842. Along the airflow direction of the first heat dissipation air duct 84, the air guiding portion 83 extends obliquely in a direction away from the electrical control box 2 and away from the bottom wall of the chassis 1.

The air guiding part 83 can change the air flow field, which is beneficial to improving the wind speed and further enhancing the heat dissipation effect.

In an exemplary embodiment, the bottom of the first heat dissipation air duct 84 is further provided with an air vent 843, as shown in fig. 12, 14 and 16, the air vent 843 is communicated with the heat exchange air duct 14.

During the operation of the machine, since the external atmospheric pressure is relatively high and the air pressure in the heat exchange air duct 14 is relatively low, the air flow preferentially enters the first heat dissipation air duct 84 through the first air inlet 841. When the first air inlet 841 is blocked by the foreign objects such as the leaves outside, the air pressure at the first air outlet 842 is lower than the air pressure at the air vent 843, so that the air in the heat exchange air duct 14 can enter the first heat dissipation air duct 84 through the air vent 843, then enter the heat exchange air duct 14 through the first air outlet 842, and then be discharged out of the heat exchange air duct 14.

Therefore, the air vent 843 can serve as a standby air inlet of the first heat dissipation air duct 84, and when the first air inlet 841 is blocked by foreign matters such as external leaves, the first heat dissipation air duct 84 can also supply air through the air vent 843, so as to ensure continuous heat dissipation of the electronic control box 2. This is advantageous for improving the safety and reliability of the electronic control box 2.

In an exemplary embodiment, as shown in fig. 12, 14, and 16, the vent 843 includes a plurality of staggered strip-shaped holes. The vent 843 is provided on the sheet metal part.

The vent 843 adopts strip-shaped holes which are arranged in a staggered manner, so that the area of the vent 843 is increased, the air quantity of the first heat dissipation air duct 84 is further increased, and the heat dissipation effect is further improved; and the strength of the sheet metal part provided with the vent 843 is improved.

Of course, the vent 843 is not limited to the above-described form, and may be formed of aligned strip-shaped holes, circular holes, rectangular holes, or the like.

In an exemplary embodiment, as shown in fig. 13, the first heat dissipation air duct 84 includes: a transverse segment 844 and a vertical segment 845.

Wherein, one end of the transverse section 844 is provided with a first air inlet 841. The vertical section 845 communicates with the other end of the transverse section 844, and extends in a direction close to the top wall of the casing 1. The first radiator 9 is located within the vertical section 845. Vertical section 845 is close to the open setting in one end of the roof of casing 1 and forms first air outlet 842, and the one end that the roof of casing 1 was kept away from to vertical section 845 is equipped with blow vent 843.

In this embodiment, the first heat dissipation air duct 84 includes a transverse section 844 and a vertical section 845, the transverse section 844 extends along the horizontal direction or substantially along the horizontal direction, and the vertical section 845 extends along the vertical direction or substantially along the vertical direction, so that the first heat dissipation air duct 84 is L-shaped or substantially L-shaped. First air outlet 842 is located the upper end of vertical section 845, and blow vent 843 is located the lower extreme of vertical section 845. In use, airflow enters the transverse segment 844 through the first intake 841 and then turns upward to exit through the vertical segment 845. When the first air inlet 841 is blocked by outside leaves or other impurities, the air flow enters the vertical section 845 through the air opening 843 and is discharged vertically upwards.

In an exemplary embodiment, as shown in fig. 11, the electrical control box 2 includes an electrical control portion 27 and an extension portion 28. The electronic control section 27 is connected to the first radiator 9. The extension 28 is connected to the bottom wall of the casing 1. The first air guide 8 includes: side enclosing plates 81 and a bottom plate 82 as shown in fig. 13 and 14.

The side wall plate 81 covers the first heat sink 9, and encloses a vertical section 845 with the electric control portion 27 and the bottom plate 82. The upper end of the side enclosing plate 81 and the electric control part 27 enclose a first air outlet 842.

The bottom plate 82 is connected to the lower end of the side gusset 81. The bottom plate 82, the bottom wall of the electric control part 27 and the extending part 28 enclose a transverse section 844. The first air inlet 841 is disposed at the extension portion 28. The bottom plate 82 is lower than the first intake 841, and the vent 843 is formed in the bottom plate 82.

In this embodiment, the electronic control box 2 includes an electronic control portion 27 and an extending portion 28, and the extending portion 28 is connected to the electronic control board 23, protrudes downward from the electronic control portion 27, and is connected to the bottom wall of the housing 1. The electric control portion 27 is a main body portion of the electric control box 2, and an installation space is provided inside the electric control portion, and electric control elements such as the electric control board 23 are located in the installation space. Therefore, the electric control unit 27 is a position where the heat generation amount of the electric control box 2 is relatively high. Therefore, the electric control part 27 is connected with the first heat sink 9, and the heat generated by the electric control box 2 can be dissipated through the first heat sink 9 in time.

The first air guide 8 includes a side enclosing plate 81 and a bottom plate 82, the side enclosing plate 81 is in a half-enclosing structure, can cover the first radiator 9, and encloses a vertical section 845 with the electric control part 27 and the bottom plate 82. The bottom plate 82 is connected to the lower end of the side gusset 81, and covers the lower end of the side gusset 81 to be open, so that the vent 843 is provided on the bottom plate 82. The bottom plate 82 is lower than the first air inlet 841, and surrounds the transverse section 844 with the electric control portion 27 and the extending portion 28. The first intake opening 841 is formed at the extension part 28, and in order to facilitate the first intake opening 841 to communicate with the external space, the extension part 28 may be formed as a part of the external appearance of the outdoor unit of the air conditioner, and the extension part 28 may be formed in a plate structure.

In an exemplary embodiment, one end of the side frame 81 is engaged with the first heat sink 9, the other end of the side frame 81 is connected to the first heat sink 9 by a first fastening member, and the bottom plate 82 is connected to the extension 28 by a second fastening member.

As shown in fig. 18, one end of the side wall plate 81 and one of the first heat sinks 9 may be provided with a hook 811, the other one is correspondingly provided with a hook hole 91, and the hook 811 is engaged with the hook hole 91, so that the side wall plate 81 and the first heat sink 9 can be fastened and fixed. The other end of the side enclosing plate 81 and the first heat sink 9 may be both provided with a first connection hole 85, and the other end of the side enclosing plate 81 and the first heat sink 9 are fixed together by a first fastener (which may be, but is not limited to, a screw) passing through the first connection hole 85.

The bottom plate 82 and the electronic control box 2 may be provided with second connecting holes 86, and the bottom plate 82 and the electronic control box 2 are fixed together by a second fastening member (which may be, but is not limited to, a screw) passing through the second connecting hole 86.

In the assembling process, the side enclosing plates 81 and the first radiator 9 can be firstly utilized to be clamped and matched to realize the pre-fixing of the first air guide piece 8, then the first fastening piece and the second fastening piece are utilized to realize the fastening connection of the first air guide piece 8, the position stability of the first air guide piece 8 is ensured, and the use reliability of the first air guide piece 8 is further improved.

In an exemplary embodiment, the first intake 841 includes a plurality of bar-shaped holes arranged in a louver shape, as shown in fig. 12.

The first air inlet 841 is designed into a shutter shape, which is beneficial to increasing the area of the first air inlet 841, and further improving the heat dissipation effect of the electric control box 2.

The first air inlet 841 may be formed by stamping.

Of course, the first intake vent 841 may be provided in other shapes, such as a rectangular hole, a circular hole, etc.

In an exemplary embodiment, a second heat dissipation air duct 26 is provided in the electronic control box 2, as shown in fig. 8, 13 and 15.

In this scheme, still be equipped with second heat dissipation wind channel 26 in the automatically controlled box 2, therefore the heat in the automatically controlled box 2 can also scatter and disappear through second heat dissipation wind channel 26. Thus, the electronic control box 2 has an inner and outer dual heat dissipation air duct, which is beneficial to further improve the heat dissipation effect of the electronic control box 2 compared with the case where only the outer first heat dissipation air duct 84 is provided.

In an exemplary embodiment, as shown in fig. 5 and 13, the second heat dissipation air duct 26 is provided with a second air inlet 2411 and a second air outlet 211. The second air inlet 2411 is communicated with the external space, and the second air outlet 211 is communicated with the heat exchange air duct 14.

In this scheme, the second heat dissipation air duct 26 is communicated with the external space through the second air inlet 2411, and the second heat dissipation air duct 26 is communicated with the heat exchange air duct 14 through the second air outlet 211. Therefore, when the fan 5 works to make the heat exchange air duct 14 generate negative pressure, negative pressure is also generated inside the second heat dissipation air duct 26, so that the outside air can enter the second heat dissipation air duct 26 through the second air inlet 2411, and is discharged out of the second heat dissipation air duct 26 through the second air outlet 211 to enter the heat exchange air duct 14, and is merged with the air flow in the heat exchange air duct 14 and discharged out of the casing 1.

Therefore, the second heat dissipation air duct 26, the first heat dissipation air duct 84, and the heat exchange air duct 14 can share one fan 5 (i.e., the fan 5 of the heat exchange air duct 14), which is beneficial to simplifying the product structure and reducing the product cost.

In an exemplary embodiment, the outdoor unit of an air conditioner further includes: the second air guide 3 is as shown in fig. 2 to 7. The second air guiding element 3 is disposed in the heat exchanging air duct 14 and opposite to the second air outlet 211. The second air guide 3 blocks the second outlet 211, and forms an air guiding space 31 with the second outlet 211, as shown in fig. 8. The air guide space 31 has an air outlet 32 communicating with the heat exchange air duct 14. The air outlet 32 is located at the bottom of the air guiding space 31, as shown in fig. 8.

In this scheme, second air guide 3 establishes in heat transfer wind channel 14, can play the effect of sheltering from to second air outlet 211, as shown in fig. 8, avoids the rainwater directly to get into second air outlet 211. Since the air guiding space 31 is left between the second air guiding element 3 and the second air outlet 211, the air discharged from the second air outlet 211 can join with the air in the heat exchanging air duct 14 through the air guiding space 31 and then be discharged out of the cabinet 1 along with the air flow in the heat exchanging air duct 14, as shown in fig. 5. Because the air outlet 32 of the air guiding space 31 is located at the bottom of the air guiding space 31, the air discharged from the second heat dissipation air duct 26 can only flow downward, and can only join with the air in the heat exchange air duct 14 after flowing out of the air guiding space 31.

On the contrary, as shown in fig. 8, if rainwater enters the electrical control box 2 through the second air outlet 211, the rainwater must flow upward along the air guiding space 31 against gravity to reach the second air outlet 211, which greatly increases the difficulty of the rainwater reaching the second air outlet 211, thereby improving the rain-proof effect of the electrical control box 2, and being beneficial to improving the electrical control reliability and safety of the outdoor unit of the air conditioner. In addition, the area of the second air outlet 211 does not need to be reduced, so that the heat dissipation effect of the electric control box 2 is ensured.

In an exemplary embodiment, the cabinet 1 includes: a box 11, a bottom tray 12 and a top cover 13, as shown in fig. 2 and 11.

Wherein, the box body 11 is connected with the electric control box 2. The case 11 is provided with a third air inlet 112 as shown in fig. 4. The chassis 12 is connected with the bottom of the box body 11 and the bottom of the electric control box 2. The top cover 13 covers the top of the box body 11 and the top of the electric control box 2. The top cover 13 is provided with a third air outlet 131. The second wind guide 3 is connected to the top cover 13 and is disposed along the circumferential direction of the third air outlet 131, as shown in fig. 4 and 5.

In this scheme, casing 1 includes box 11, chassis 12 and top cap 13, and box 11, chassis 12 and top cap 13 link to each other to close and enclose heat transfer wind channel 14. The box body 11 forms the side wall of the machine shell 1 and forms a heat exchange air duct 14 with an upper opening and a lower opening. The chassis 12 supports the box 11, the internal compressor 7, the outdoor heat exchanger 6 and other structures, and covers the bottom opening of the heat exchange air duct 14. The top cover 13 covers the top of the box body 11 and is covered with the top opening of the heat exchange air duct 14.

Since the box 11 has the third air inlet 112 and the top cover 13 has the third air outlet 131, the air flow enters the heat exchange air duct 14 from the side of the casing 1 and is discharged upwards from the top of the casing 1, so the air conditioner outdoor unit of the present embodiment is a top-outlet type outdoor unit, as shown in fig. 5 and 13. Because the second wind guide 3 is connected to the top cover 13 and arranged along the circumferential direction of the third air outlet 131, it can guide the air flow in the heat exchange air duct 14, so that the air in the heat exchange air duct 14 flows to the third air outlet 131 along the second wind guide 3 and is discharged.

Conversely, rainwater easily enters the heat exchange air duct 14 along the third air outlet 131 and flows downward along the second air guide 3. Because the second air guide 3 shields the second air outlet 211, and the air guide space 31 with the air outlet 32 facing downwards is formed between the second air guide 3 and the second air outlet 211, rainwater can be effectively prevented from reaching the second air outlet 211 and entering the electronic control box 2, and the reliability of the electronic control box 2 in preventing rain is ensured.

The first heat dissipation air duct 84 is not communicated with the internal space of the electronic control box 2, and even if rainwater enters the first heat dissipation air duct 84, the electronic control elements in the electronic control box 2 are not affected, so that the use safety and reliability of the electronic control box 2 are not affected.

In one example, as shown in fig. 5 and 13, the fan 5 includes a motor 51 and a rotating fan 52, and the second wind guide 3 covers the motor 51, so that the second wind guide 3 can protect the motor 51 well.

In an exemplary embodiment, the third air inlet 112 is a grid hole formed in the box 11, as shown in fig. 2 and 3. The third air outlet 131 is a mesh enclosure hole formed in the top lid 13 (a mesh enclosure may be formed on the top lid 13 to exhaust air through the mesh enclosure), as shown in fig. 2 and 4. The area of screen panel is less than the area of top cap 13, and automatically controlled box 2 also is located top cap 13 downside, and the top of automatically controlled box 2 is blocked the protection by top cap 13.

Therefore, the areas of the third air inlet 112 and the third air outlet 131 are increased, the heat exchange effect of the air conditioner outdoor unit is improved, and the refrigerating and heating efficiency of the air conditioner is improved.

In one example, the top cover 13 is integrally formed with the second air guide 3, and a ventilation net is installed in the middle of the top cover 13.

In an exemplary embodiment, as shown in fig. 2 and 5, the outdoor unit of an air conditioner further includes: and a water baffle 4 provided in the air guide space 31. As shown in fig. 8, the water baffle 4 shields the second air outlet 211, and a first air passing channel 311 is formed between the water baffle and the second air outlet 211; and a second air passage 312 is formed between the water baffle 4 and the second air guide 3. As shown in fig. 8, in the airflow direction, the first air passing channel 311 extends in a direction away from the air outlet 32, and the second air passing channel 312 extends in a direction close to the air outlet 32.

In this embodiment, since the air outlet 32 is located at the bottom of the air guiding space 31, the direction away from the air outlet 32 is an upward direction, and the direction close to the air outlet 32 is a downward direction. Therefore, along the airflow direction, the first air passing channel 311 extends upward, and the second air passing channel 312 extends downward.

Thus, if the rainwater reaches the second outlet 211, the rainwater must flow upward and then flow downward after passing over the water baffle 4, so as to reach the second outlet 211. Like this, manger plate 4 can play better interception effect that blocks to the rainwater that gets into wind-guiding space 31 on the one hand, is favorable to preventing that the rainwater that gets into in the wind-guiding space 31 from reacing second air outlet 211 to further improve automatically controlled box 2's the effect of preventing drenching with rain. On the other hand, increased the flow path of rainwater like this, can improve the loss of rainwater at the flow in-process, and then the rainfall volume that significantly reduces can reach second air outlet 211 further improves automatically controlled box 2's rain-proof effect.

In an exemplary embodiment, as shown in fig. 8, the bottom of the water baffle 4 is lower than the second air outlet 211, that is: the lower end of the water baffle 4 is lower than the lowest point of the second air outlet 211. The top of breakwater 4 is not less than second air outlet 211, promptly: the upper end of the water baffle 4 is not lower than the highest point of the first air outlet 842. The bottom of the second wind guide 3 is lower than the bottom of the water baffle 4, namely: the lower end of the second wind guide 3 is lower than the lower end of the water baffle 4.

Guaranteed like this that breakwater 4 can shelter from second air outlet 211 completely, be favorable to improving the interception of breakwater 4 to the rainwater and blockked the effect. And the bottom of second air guide 3 is less than the bottom of breakwater 4, is favorable to increasing the vertical distance between gas outlet 32 and the second air outlet 211, and the extension rainwater reaches the path length of second air outlet 211 to further improve automatically controlled box 2's the effect of preventing raining.

In an exemplary embodiment, as shown in fig. 8, the bottom of the water baffle 4 is connected to the electrical control box 2, and the top of the water baffle 4 extends obliquely to approach the second air guide 3.

Thus, the rainwater entering the air guiding space 31 may impact the water baffle 4 head-on, and then flow downward along the water baffle 4 to drip, and cannot easily cross the water baffle 4 to reach the second air outlet 211.

On the other hand, the arrangement can reduce the occupation of the water baffle 4 on the air guide space 31, so that the effective air passing space in the air guide space 31 is larger, thereby being beneficial to reducing the air flow resistance and further being beneficial to improving the heat dissipation effect of the electronic control box 2.

In one example, as shown in fig. 8, the water guard plate 4 includes a water guard portion 41 and a connection portion 42. As shown in fig. 9, the water blocking portion 41 includes a first sub-plate 411, a second sub-plate 412, and a third sub-plate 413, and the first sub-plate 411, the second sub-plate 412, and the third sub-plate 413 are connected in sequence to form a U-shaped structure. The first sub-plate 411 and the third sub-plate 413 are located at both sides of the second air outlet 211 in the length direction. The second sub-board 412 is disposed obliquely and faces the air outlet 32 of the air passing through, so that the surface of the second sub-board 412 facing the air outlet 32 forms a water retaining surface. The connection portion 42 is located at a lower side of the second outlet 211 and connected to a lower end of the second sub-board 412. The connecting part 42 is connected with the electric control box 2 through a fastening piece and the like, so that the connecting function of the water baffle 4 and the electric control box 2 is realized.

In an exemplary embodiment, the second air guiding member 3 has a plate-like structure, and a bottom of the second air guiding member 3 extends obliquely in a direction approaching the electrical control box 2, as shown in fig. 8.

On one hand, the area of the air outlet 32 of the air guide space 31 is reduced, so that the difficulty of rainwater entering the air guide space 31 is improved, and the rain-proof effect of the electric control box 2 is further improved; on the other hand, the rainwater is guided to fall along the second air guide component 3, the risk that the rainwater splashes upwards to enter the air guide space 31 is reduced, and therefore the rainwater prevention effect of the electric control box 2 is further improved.

The bottom of the second air guide 3 may extend obliquely along a straight line or may extend obliquely along a curved line (as shown in fig. 8).

In an exemplary embodiment, the second outlet 211 includes a plurality of bar-shaped holes arranged in a louver shape, as shown in fig. 10, 17 and 18, and the opening of the second outlet 211 is upward.

The second air outlet 211 is designed to be in a shutter shape, so that the area of the second air outlet 211 is increased, and the heat dissipation effect of the electric control box 2 is improved. The second air outlet 211 is opened upwards, which is beneficial to exhausting air flow upwards, thereby improving the heat dissipation effect of the electric control box 2; and the shutter also can play a certain water retaining role, and is also favorable for increasing the difficulty of rainwater entering the second air outlet 211 upwards, thereby further improving the rain-proof effect of the electric control box 2.

The second air outlet 211 may be formed by stamping.

Of course, the second air outlet 211 may be provided in other shapes, such as a rectangular hole, a circular hole, etc.

In an exemplary embodiment, as shown in fig. 3, the side wall of the cabinet 1 is provided with a mounting notch 111. The electronic control box 2 includes: a box body 21, a first cover plate 22, an electric control plate 23 and a second cover plate 24, as shown in fig. 6.

Wherein the box body 21 is connected to the cabinet 1 and covers the upper portion of the installation notch 111. The first heat sink 9 is connected to the case 21. The first cover 22 covers the box 21 and encloses an installation space with the box 21. The bottom of the installation space is arranged in an open mode. The electric control board 23 is provided in the installation space. The second cover plate 24 covers the lower portion of the installation notch 111 and the bottom open end of the installation space. The second cover plate 24 is provided with an avoidance notch 2421 for avoiding the refrigerant pipe.

The box body 21, the first cover plate 22 and the electric control plate 23 form an electric control part 27. The second cover plate 24 forms an extension 28.

In the scheme, the side wall of the casing 1 is provided with the installation notch 111, and the electric control box 2 is arranged at the installation notch 111 and covers the installation notch 111 to ensure the integrity of the outdoor unit of the air conditioner in appearance. Wherein, box body 21 is connected with first apron 22, and box body 21 encloses out installation space with first apron 22, and automatically controlled board 23 installs in installation space, specifically can fix on box body 21. The box body 21 and the second cover plate 24 are distributed up and down. The case body 21 covers an upper portion of the installation recess 111, and the second cover 24 covers a lower portion of the installation recess 111. Meanwhile, the second cover plate 24 also covers the bottom opening of the installation space to protect the electric control board 23. The second cover plate 24 may include a top plate 241 and a side plate 242, the top plate 241 covering the bottom of the mounting space being open, and the side plate 242 covering the lower portion of the mounting notch 111. The second cover plate 24 is provided with an avoiding notch 2421, so that a refrigerant pipe connected with the compressor 7 in the casing 1 can be connected with an external refrigerant pipe, and further communicated with a refrigerant pipe of an indoor unit of an air conditioner. The escape notch 2421 may be provided at the bottom of the second cover plate 24.

In an exemplary embodiment, a second heat dissipation air duct 26 is disposed in the electronic control box 2, and the second heat dissipation air duct 26 is provided with a second air inlet 2411 communicated with the external space and a second air outlet 211 communicated with the heat exchange air duct 14. Wherein:

the second air inlet 2411 is provided in the second cover plate 24, as shown in fig. 12. The second outlet 211 is provided in the box body 21, as shown in fig. 10, 17, and 18.

The second air inlet 2411 includes at least one of: an air inlet arranged on the second cover plate 24, a wire passing hole arranged on the second cover plate 24, an assembly gap between the second cover plate 24 and the box body 21, and an assembly gap between the second cover plate 24 and the first cover plate 22.

Since the box body 21 is located between the heat exchange air duct 14 and the installation space, the second air outlet 211 is disposed on the box body 21, so that the second air outlet 211 can be communicated with the heat exchange air duct 14 and the second heat dissipation air duct 26.

The second air inlet 2411 may be arranged in various forms, such as: the air inlet can be separately arranged on the second cover plate 24, the air inlet function can be realized by utilizing the wire passing hole on the second cover plate 24, the air inlet function can be realized by utilizing the assembly gap between the second cover plate 24 and the box body 21, the air inlet function can be realized by utilizing the assembly gap between the second cover plate 24 and the first cover plate 22, and the air inlet function can also be realized by any combination of the above. Can be reasonably arranged according to the requirement in the specific production process.

In an exemplary embodiment, as shown in fig. 6 and 8, the electronic control box 2 further includes: and a second radiator 25 provided on the electronic control board 23. The distance between the second heat sink 25 and the second air outlet 211 is smaller than the distance between the second heat sink 25 and the second air inlet 2411.

In other words, the second heat sink 25 is provided at a position close to the second air outlet 211. Because the wind speed near the second air outlet 211 is relatively high, the second heat radiator 25 is arranged at a position close to the second air outlet 211, so that heat of the second heat radiator 25 can be discharged through the second air outlet 211 quickly, and the heat dissipation effect of the electric control box 2 is further improved.

The second heat sink 25 may include, but is not limited to, a plurality of heat dissipation fins arranged side by side. The second heat sink 25 may be an aluminum heat sink. The second heat sink 25 is smaller in size than the first heat sink 9. A second radiator 25 may be provided to the fan 5 module of the electronic control board 23.

The heat dissipation and rain-proof principle of the outdoor unit of the air conditioner is as follows:

as shown in fig. 5 and 13, when the machine is in operation, the motor 51 drives the rotating fan 52 to rotate, so that negative pressure is formed inside the casing 1, and outside air flows through the outdoor heat exchanger 6 through the third air inlet 112 on the box body 11, exchanges heat with the outdoor heat exchanger 6, and is finally discharged through the third air outlet 131 on the top cover 13.

As shown in fig. 13, negative pressure is formed inside the chassis 1, so that negative pressure is also formed inside the electronic control box 2 and inside the first heat dissipation air duct 84, and air with low temperature outside enters the first heat dissipation air duct 84 from the first air inlet 841, enters the electronic control box 2 from the air inlet, enters the chassis 1 through the first air outlet 842 and the second air outlet 211, and finally exits the chassis 1 through the third air outlet 131 under the action of the rotating fan 52. Therefore, when the machine works, under the action of the rotating fan blades 52, the external air flow continuously enters the interior of the electronic control box 2 and the interior of the first heat dissipation air duct 84 and is finally discharged, so that the continuous heat dissipation of the interior of the electronic control box 2 is realized.

As shown in fig. 8, when the machine is placed in an outdoor rainy environment, rainwater is first blocked by the second wind guide 3. The water drops bypassing the second air guide 3 move upwards to be further blocked by the water baffle 4, so that the scattered water drops are prevented from entering the electric control box 2. In addition, because the second air outlet 211 of the electronic control box 2 is designed to be a louver structure with an upward opening, the water beads can be better prevented from entering the electronic control box 2.

Thus, the second air guide piece 3, the water baffle 4, the second air outlet 211 of the shutter structure and the position matching of the three can effectively prevent water drops from entering the electric control box 2 when raining. Meanwhile, because the gaps among the second air outlet 211, the water baffle 4 and the air guide piece are large, the air flow resistance is small, and the electric control heat dissipation efficiency can be improved.

An embodiment of the present application further provides an air conditioning apparatus (not shown in the drawings), including: an indoor unit of an air conditioner and an outdoor unit of an air conditioner as in any one of the above embodiments are connected to the indoor unit of an air conditioner.

The air conditioning equipment provided by the embodiment of the application has the beneficial effects together because the air conditioning equipment comprises the outdoor unit of the air conditioner in any one of the embodiments, and the description is omitted.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, 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 at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

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

the heat exchanger comprises a shell, a heat exchanger and a fan, wherein the shell is provided with a heat exchange air duct;

the electric control box is connected with the shell;

the first air guide piece is arranged in the heat exchange air channel and surrounds the first heat dissipation air channel communicated with the heat exchange air channel with the electric control box; and

and the first radiator is positioned in the first radiating air channel, is connected with the electric control box and is arranged for radiating heat of the electric control box.

2. The outdoor unit of claim 1, wherein,

the first heat dissipation air duct is provided with a first air inlet and a first air outlet, the first air inlet is communicated with the external space, and the first air outlet is communicated with the heat exchange air duct.

3. The outdoor unit of claim 2, wherein,

the first air inlet is arranged at the bottom of the first heat dissipation air duct, and the top of the first heat dissipation air duct is arranged in an open mode to form the first air outlet.

4. The outdoor unit of claim 3, wherein,

the first air guide piece is provided with a plate-shaped air guide part, the air guide part is positioned at the first air outlet and obliquely extends towards the direction far away from the electric control box and the bottom wall of the shell along the airflow direction of the first heat dissipation air duct.

5. An outdoor unit of an air conditioner according to claim 3,

the bottom in first heat dissipation wind channel still is equipped with the blow vent, the blow vent with heat transfer wind channel intercommunication.

6. The outdoor unit of claim 5, wherein the first cooling air duct comprises:

the first air inlet is formed in one end of the transverse section; and

vertical section, with the other end intercommunication of horizontal section, and to being close to the direction of the roof of casing extends, first radiator is located in the vertical section, the vertical section is close to the one end of the roof of casing opens to set up and forms first air outlet, vertical section is kept away from the one end of the roof of casing is equipped with the blow vent.

7. The outdoor unit of claim 6, wherein the electric control box comprises an electric control part connected to the first heat sink and an extension part connected to a bottom wall of the casing, and the first air guide member comprises: side coamings and a bottom plate;

the side coaming plate is covered on the first radiator and surrounds the vertical section with the electric control part and the bottom plate, and the upper end of the side coaming plate surrounds the first air outlet with the electric control part;

the bottom plate with the lower extreme of side bounding wall links to each other, the bottom plate with the diapire of automatically controlled portion and the extension surrounds out horizontal section, first air intake is located the extension, the bottom plate is less than first air intake, the blow vent is located the bottom plate.

8. The outdoor unit of claim 7, wherein,

one end of the side enclosing plate is connected with the first radiator in a clamped mode, the other end of the side enclosing plate is connected with the first radiator through a first fastener, and the bottom plate is connected with the extending portion through a second fastener.

9. The outdoor unit of an air conditioner according to any one of claims 1 to 8,

and a second heat dissipation air duct is arranged in the electric control box.

10. The outdoor unit of claim 9, wherein,

the second heat dissipation air duct is provided with a second air inlet and a second air outlet, the second air inlet is communicated with the external space, and the second air outlet is communicated with the heat exchange air duct.

11. The outdoor unit of claim 10, further comprising:

the second air guide piece is arranged in the heat exchange air duct and is opposite to the second air outlet; and the second air guide piece shields the second air outlet, an air guide space is formed between the second air outlet and the second air outlet, the air guide space is provided with an air outlet communicated with the heat exchange air channel, and the air outlet is positioned at the bottom of the air guide space.

12. The outdoor unit of claim 11, further comprising:

the water baffle is arranged in the air guide space, shields the second air outlet and forms a first air passing channel with the second air outlet; a second air passing channel is formed between the water baffle and the second air guide piece; along the air current flow direction, first air passing channel extends to the direction of keeping away from the gas outlet, second air passing channel extends to the direction that is close to the gas outlet.

13. The outdoor unit of claim 12, wherein,

the bottom of the water baffle is lower than the second air outlet, and the top of the water baffle is not lower than the second air outlet; the bottom of the second air guide piece is lower than the bottom of the water baffle.

14. The outdoor unit of claim 13, wherein,

the bottom of the water baffle is connected with the electric control box, and the top of the water baffle extends towards the direction close to the second air guide piece in an inclined mode.

15. The outdoor unit of claim 11, wherein the casing comprises:

the box body is connected with the electric control box and is provided with a third air inlet;

the chassis is connected with the bottom of the box body and the bottom of the electric control box; and

the top cap, the lid is located the top of box with the top of automatically controlled box, the top cap is equipped with the third air outlet, the second wind guide with the top cap links to each other and along the circumference setting of third air outlet.

16. The outdoor unit of any one of claims 1 to 8, wherein a sidewall of the cabinet is provided with a mounting notch, and the electric control box comprises:

the box body is connected with the shell and covers the upper part of the installation gap, and the first radiator is connected with the box body;

the first cover plate is covered on the box body and surrounds an installation space with the box body, and the bottom of the installation space is opened;

the electric control plate is arranged in the mounting space; and

the second cover plate is used for sealing the lower part of the installation gap and the bottom open end of the installation space, and the second cover plate is provided with an avoidance gap for avoiding a refrigerant pipe;

wherein the box body, the first cover plate and the electric control plate form an electric control part, and the second cover plate forms an extension part.

17. The outdoor unit of claim 16, wherein a second heat dissipation air duct is provided in the electric control box, and the second heat dissipation air duct has a second air inlet communicating with an external space and a second air outlet communicating with the heat exchange air duct, wherein:

the second air inlet is formed in the second cover plate, and the second air outlet is formed in the box body;

the second air inlet comprises at least one of the following components: the air inlet is arranged on the second cover plate, the wire passing hole is arranged on the second cover plate, the assembly gap between the second cover plate and the box body is formed, and the assembly gap between the second cover plate and the first cover plate is formed.

18. An air conditioning apparatus, characterized by comprising:

an air-conditioning indoor unit; and

the outdoor unit of any one of claims 1 to 17, connected to the indoor unit.