Electric control box heat dissipation structure applied to outdoor unit of air conditioner

Abstract

An electric control box heat dissipation structure applied to an air conditioner outdoor unit comprises an electric control box body, an electric control box heat dissipation device and a PCB main control board used for connecting and controlling an electric control box, and the electric control box body is provided with an electric control box heat dissipation part, an electric control box air inlet and an electric control box air outlet. The electric control box air outlet communicates with the electric control box air inlet to form a first heat dissipation channel used for internal heat dissipation, and the PCB main control board is installed in the first heat dissipation channel and dissipates heat through the first heat dissipation channel. The electric control box radiator is connected to the electric control box heat dissipation part and is connected with the PCB main control board for heat conduction, and the electric control box radiator and the electric control box main body form a second heat dissipation channel; air on the outer side passes through the first heat dissipation channel and the second heat dissipation channel to conduct heat dissipation on the PCB main control board and the electric control box heat dissipation device. According to the scheme, the structural design of double heat dissipation channels is adopted, and the effects of improving the heat dissipation efficiency of the electric control box, improving the heat dissipation stability of the electric control box and prolonging the service life of the electric control box are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of the outdoor unit of the ejection air split type air conditioner, especially relates to a kind of electric control box heat dissipation structure applied to the outdoor unit of air conditioner. BACKGROUND

[0002] With the rapid development of electronic technology, the heat dissipation problem of air conditioner electric control box becomes particularly important, because it is directly related to the stability and service life of air conditioner;The electric control box in the prior art background is often designed in a closed state, and then relies on the heat radiation of structural members for heat dissipation, which has low heat dissipation efficiency and easily leads to temperature rise of heating components, affecting the long-term stable operation of the electric control box, therefore, the utility model proposes a new technical solution for the above technical problems. UTILITY MODEL CONTENT

[0003] The utility model is to provide a kind of electric control box heat dissipation structure applied to the outdoor unit of air conditioner, adopt the structure design of double heat dissipation channel, reach the effect of improving the heat dissipation efficiency of electric control box, improve the heat dissipation stability of electric control box and prolong the service life of electric control box.

[0004] Based on this, the utility model provides a kind of electric control box heat dissipation structure applied to the outdoor unit of air conditioner, comprising:

[0005] Electric control box main body, electric control box radiator and the PCB main control board for electric control box connection control, the electric control box main body is equipped with electric control box heat dissipation part, electric control box air inlet, electric control box air outlet, the electric control box air outlet is connected with the electric control box air inlet and forms the first heat dissipation channel for internal heat dissipation, the PCB main control board is installed in the first heat dissipation channel and is heat dissipated by the first heat dissipation channel;The electric control box radiator is connected in the electric control box heat dissipation part and is connected with the PCB main control board and is heat conducted, and the electric control box radiator and the electric control box main body form the second heat dissipation channel;The wind of outside passes through first heat dissipation channel and second heat dissipation channel respectively and is heat dissipated to PCB main control board and electric control box radiator.

[0006] The electric control box heat dissipation structure applied to the outdoor unit of air conditioner as described above, the electric control box main body is equipped with electric control box support seat, electric control box cover, the electric control box heat dissipation part, electric control box air inlet, electric control box air outlet are respectively arranged on the electric control box support seat;The electric control box cover is connected in the electric control box support seat and is surrounded to form electric control box installation cavity, the PCB main control board is connected in the electric control box installation cavity, the electric control box radiator is connected with the PCB main control board by the electric control box heat dissipation part and is heat conducted, the electric control box air inlet is connected with the electric control box air outlet by the electric control box installation cavity and forms the first heat dissipation channel and is heat dissipated.

[0007] The air-conditioner outdoor unit electric control box heat dissipation structure as described above, the electric control box support seat is further provided with a wind guide structure, the wind guide structure is arranged in the electric control box mounting cavity, and the wind guide structure is arranged between the electric control box air outlet and the electric control box mounting cavity to guide the hot air out.

[0008] The air-conditioner outdoor unit electric control box heat dissipation structure as described above, the wind guide structure is provided with a first wind guide plate, a second wind guide plate, a third wind guide plate and a fourth wind guide plate, the second wind guide plate is fixedly connected in the electric control box mounting cavity, the first wind guide plate is connected to the second wind guide plate and forms an inclined slope; the fourth wind guide plate is fixedly connected to the electric control box air outlet relative to the first wind guide plate, and the fourth wind guide plate is parallel to the second wind guide plate; one end of the third wind guide plate is connected to the second wind guide plate, and the other end is connected to the fourth wind guide plate to guide the hot air in the electric control box mounting cavity out.

[0009] The air-conditioner outdoor unit electric control box heat dissipation structure as described above, the electric control box cover is provided with an electric control box connection terminal seat, the electric control box connection terminal seat is connected to the PCB main control board, and the electric control box connection terminal seat is provided with a plurality of electric control box wiring ports, the electric control box wiring ports can be accessed by external connecting lines for power supply.

[0010] The air-conditioner outdoor unit electric control box heat dissipation structure as described above, the electric control box heat dissipation device is provided with a heat dissipation device protection shell and a heat dissipation device main body, the heat dissipation device protection shell is arranged outside the electric control box heat dissipation part and forms a second heat dissipation channel with the electric control box main body; one end of the heat dissipation device main body is connected to the PCB main control board, and the other end extends out of the electric control box main body through the electric control box heat dissipation part to dissipate heat in the second heat dissipation channel.

[0011] The air-conditioner outdoor unit electric control box heat dissipation structure as described above, the heat dissipation device main body is provided with a heat conduction fin group and a heat dissipation fin fixing part, the heat conduction fin group is fixedly connected to the heat dissipation fin fixing part, the heat dissipation device main body is connected to the PCB main control board through the heat dissipation fin fixing part, and the heat conduction fin group extends to the second heat dissipation channel to dissipate heat through the electric control box heat dissipation part.

[0012] The air-conditioner outdoor unit electric control box heat dissipation structure as described above, the heat conduction fin group is provided with a first heat conduction fin, a second heat conduction fin, a third heat conduction fin, a fourth heat conduction fin, a fifth heat conduction fin and a plurality of sixth heat conduction fins, the first heat conduction fin, the second heat conduction fin, the third heat conduction fin, the fourth heat conduction fin, the fifth heat conduction fin and the plurality of sixth heat conduction fins are equidistantly connected to the heat dissipation fin fixing part for heat conduction.

[0013] The heat dissipation structure of the electric control box applied to the outdoor unit of the air conditioner, the heat radiator protection shell is provided with a first heat radiator air vent, a second heat radiator air vent and a third heat radiator air vent, the first heat radiator air vent is arranged opposite to the third heat radiator air vent, and the second heat radiator air vent is arranged opposite to the electric control box air outlet, so that hot air is blown out from the third heat radiator air vent and the second heat radiator air vent respectively for heat dissipation.

[0014] The heat dissipation structure of the electric control box applied to the outdoor unit of the air conditioner, the second heat radiator air vent, the third heat radiator air vent and the electric control box air inlet are designed as grilles.

[0015] The embodiment of the present application has the following beneficial effects:

[0016] 1. The structure design of the double heat dissipation channels is adopted, the electric control box air outlet is communicated with the electric control box air inlet to form a first heat dissipation channel for internal heat dissipation, the PCB main control board is installed in the first heat dissipation channel and enters the first heat dissipation channel through the outside air, the air passing through the PCB main control board is heat-conducted in a heat convection manner to take away part of the heat, and then the electric control box radiator is connected to the electric control box heat dissipation part and connected with the PCB main control board for heat conduction heat dissipation; the electric control box radiator and the electric control box main body form a second heat dissipation channel, and the electric control box radiator conducts the heat out to the second heat dissipation channel; the outside air enters the second heat dissipation channel, and the air passing through the electric control box radiator takes away the heat conducted out of the electric control box radiator in a heat convection manner, so that the PCB main control board is quickly heat-dissipated through the double channels to maintain the temperature stability inside the electric control box, and the effects of improving the heat dissipation efficiency of the electric control box, improving the heat dissipation stability of the electric control box and prolonging the service life of the electric control box are achieved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0018] Figure 1 The structural schematic diagram of the embodiment of the present application is shown in the figure.

[0019] Figure 2 The structural schematic diagram of the embodiment of the present application is shown in the figure. Figure 1 The structural schematic diagram of the embodiment of the present application is shown in the figure.

[0020] Figure 3 The structural schematic diagram of the embodiment of the present application is shown in the figure. Figure 2 The structural schematic diagram of the embodiment of the present application is shown in the figure.

[0021] Figure 4 The structural schematic diagram of the embodiment of the present application is shown in the figure.Figure 3 Structure diagram of another direction;

[0022] Figure 5 For corresponding Figure 4 A-A sectional view;

[0023] Figure 6 Structure explosion map of the embodiment of the utility model;

[0024] Figure 7 For corresponding Figure 6 B part enlarged view;

[0025] Figure 8 For corresponding Figure 6 Structure diagram of another direction;

[0026] Figure 9 For corresponding Figure 8 Structure diagram of another direction;

[0027] Figure 10 Structure diagram of radiator main body of the embodiment of the utility model;

[0028] Figure 11 Structure diagram of electric control box support seat of the embodiment of the utility model;

[0029] Figure 12 For corresponding Figure 11 Structure diagram of another direction.

[0030] In the diagram: 1-Control box body, 11-Control box support base, 111-Control box heat dissipation section, 112-Control box air inlet, 113-Control box air outlet, 114-Air guide structure, 1141-First air guide plate, 1142-Second air guide plate, 1143-Third air guide plate, 1144-Fourth air guide plate, 115-Radiator fastening limit hole, 12-Control box cover, 121-Control box connection terminal block, 122-First control box cover removal section, 123-Second control box cover removal section, 124-Control box wiring connection hole, 125-Control box wire clamping plate, 126-Control box cover fixing hole, 13-Control box mounting cavity, 14-First heat dissipation channel, 15-Second heat dissipation channel, 16-P CB main control board connecting post; 2-Electrical control box heat sink, 21-Heat sink protective shell, 211-First heat sink vent, 212-Second heat sink vent, 213-Third heat sink vent, 22-Heat sink body, 221-Heat-conducting fin assembly, 2211-First heat-conducting fin, 2212-Second heat-conducting fin, 2213-Third heat-conducting fin, 2214-Fourth heat-conducting fin, 2215-Fifth heat-conducting fin, 2216-Sixth heat-conducting fin, 222-Heat sink fin fixing part, 2221-Heat-conducting contact part, 2222-Heat sink fin fixing part connecting hole, 23-Heat sink fastener, 231-Heat sink fin fixing part mounting slot; 3-PCB main control board, 31-Heat-conducting connection part. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] like Figures 1 to 12 As shown, this utility model embodiment provides a heat dissipation structure for the electrical control box of an air conditioner outdoor unit, comprising:

[0033] The electric control box body 1, the electric control box radiator 2 and the PCB main control board 3 for connecting and controlling the electric control box, the electric control box body 1 is provided with the electric control box heat dissipation part 111, the electric control box air inlet 112, the electric control box air outlet 113, the electric control box air outlet 113 is communicated with the electric control box air inlet 112 to form the first heat dissipation channel 14 for internal heat dissipation, the PCB main control board 3 is installed in the first heat dissipation channel 14 and dissipates heat through the first heat dissipation channel 14; the electric control box radiator 2 is connected to the electric control box heat dissipation part 111 and connected with the PCB main control board 3 for heat conduction, and the electric control box radiator 2 and the electric control box body 1 form the second heat dissipation channel 15; the outside wind passes through the first heat dissipation channel 14 and the second heat dissipation channel 15 to dissipate heat for the PCB main control board 3 and the electric control box radiator 2 respectively, so as to maintain the stability of the temperature in the electric control box.

[0034] Specifically, the electric control box body 1 is provided with the electric control box support seat 11, the electric control box cover 12, the electric control box heat dissipation part 111, the electric control box air inlet 112 and the electric control box air outlet 113 are arranged on the electric control box support seat 11 respectively; the electric control box cover 12 is connected to the electric control box support seat 11 to form the electric control box mounting cavity 13, the PCB main control board connecting column 16 is arranged in the electric control box mounting cavity 13, the PCB main control board 3 is provided with the PCB main control board mounting hole matched with the PCB main control board connecting column 16; the PCB main control board 3 is connected to the PCB main control board connecting column 16 through the PCB main control board mounting hole, and the PCB main control board 3 is fastened in the electric control box mounting cavity 13 through the first threaded fastener, so that the PCB main control board 3 connecting surface forms the heat dissipation gap with the electric control box body 1, the outside wind passes through the heat dissipation gap to cool the PCB main control board 3, so as to improve the stability of the PCB main control board 3 installation and the heat dissipation efficiency in the working process; the electric control box radiator 2 is connected with the PCB main control board 3 through the electric control box heat dissipation part 111 for heat conduction, so as to transfer the heat on the PCB main control board 3 to the outside through heat conduction, thereby improving the heat dissipation efficiency of the PCB main control board 3; the electric control box air inlet 112 is communicated with the electric control box air outlet 113 through the electric control box mounting cavity 13 to form the first heat dissipation channel 14, so that the heat accumulated in the electric control box mounting cavity 13 can be dissipated through the first heat dissipation channel 14, avoiding the influence of heat accumulation in the electric control box mounting cavity 13 on the normal operation of the electric control box; the inner surface of the electric control box cover 12 can also be coated with a heat conduction coating, so that part of the heat can be dissipated through the electric control box cover 12, thereby improving the efficiency of heat conduction from the electric control box to the external environment.

[0035] Further, the electric control box support seat 11 is further provided with a wind guide structure 114, the wind guide structure 114 is arranged in the electric control box mounting cavity 13, and the wind guide structure 114 is arranged between the electric control box air outlet 113 and the electric control box mounting cavity 13, so that the wind outside enters the electric control box mounting cavity 13 and accelerates the air flow in the electric control box body 1 to exchange heat, and then the hot air is guided out through the wind guide structure 114, and the heat exchange efficiency is effectively improved.

[0036] Further, the wind guide structure 114 is provided with a first air guide plate 1141, a second air guide plate 1142, a third air guide plate 1143 and a fourth air guide plate 1144, the second air guide plate 1142 is fixedly connected in the electric control box mounting cavity 13, and the second air guide plate 1142 is parallel to the electric control box cover 12, so as to accelerate the air flow in the electric control box and improve the heat dissipation efficiency; the first air guide plate 1141 is connected on the second air guide plate 1142 and forms an inclined slope, the inclined slope can improve the air flow path in the electric control box, so that the hot air can be smoothly guided out of the electric control box body 1 through the wind guide structure 114, so as to improve the heat exchange efficiency; the fourth air guide plate 1144 is fixedly connected to the electric control box air outlet 113 relative to the first air guide plate 1141, and the fourth air guide plate 1144 is parallel to the second air guide plate 1142, so as to avoid the backflow of hot air and improve the heat dissipation efficiency; one end of the third air guide plate 1143 is connected to the second air guide plate 1142, and the other end is connected to the fourth air guide plate 1144; in the embodiment of the utility model, the third air guide plate 1143 is preferably two, which can improve the connection stability of the wind guide structure 114, and help to guide the hot air in the electric control box mounting cavity 13 out of the outside, so as to improve the heat dissipation effect.

[0037] Further, the electric control box cover 12 is provided with an electric control box connecting terminal seat 121, a first electric control box cover dismounting part 122, a second electric control box cover dismounting part 123, an electric control box wiring connecting hole 124, an electric control box wiring pressing plate 125, and an electric control box cover fixing hole 126. The electric control box connecting terminal seat 121 is connected to the PCB main control board 3, and the electric control box connecting terminal seat 121 is provided with a plurality of electric control box wiring ports 1211 arranged oppositely up and down, so that the external connecting wire can be connected to the electric control box body 1 through the plurality of electric control box wiring ports 1211 and fastened by a second threaded fastener, to ensure the reliability of the connection. The first electric control box cover dismounting part 122 is symmetrically arranged on both sides of the electric control box cover 12, to facilitate the dismounting of the electric control box cover 12. A plurality of electric control box wiring connecting holes 124 are equidistantly arranged on the side of the electric control box connecting terminal seat 121 close to the electric control box air inlet 112, to connect the electric control box component connecting wire with the outside, improving the convenience of wiring connection. The electric control box wiring pressing plate 125 is arranged on the side of the electric control box wiring connecting hole 124, to facilitate the fastening of the electric control box component connecting wire or the external connecting wire, to avoid shaking or being accidentally touched during use, improving the safety of the electric control box and the aesthetic appearance of the overall structure connection. The second electric control box cover dismounting part 123 is arranged on the side of the electric control box wiring pressing plate 125, to cooperate with the first electric control box cover dismounting part 122 to quickly mount and dismount the electric control box cover 12. The electric control box support seat 11 is also provided with an electric control box cover fixing column corresponding to the electric control box cover fixing hole 126, which is connected to the electric control box cover fixing column through the electric control box cover fixing hole and fastened by a third threaded fastener, to improve the connection stability of the electric control box body 1.

[0038] Further, the electric control box radiator 2 is provided with a radiator protection shell 21 and a radiator body 22. The fourth air deflector 1144 is also provided with a first radiator protection shell positioning column, and the electric control box support seat 11 is provided with a second radiator protection shell positioning column and a radiator protection shell fixing hole. The radiator protection shell 21 is provided with a positioning column connecting hole and a radiator protection shell connecting hole. The radiator protection shell 21 is arranged outside the electric control box heat dissipation part 111 and forms a second heat dissipation channel 15 with the electric control box body 1. The positioning column connecting hole is connected to the first and second radiator protection shell positioning columns respectively for positioning, and the radiator protection shell connecting hole is connected to the radiator protection shell fixing hole and fastened by a fourth threaded fastener, to improve the fastening of the connection. One end of the radiator body 22 is connected to the PCB main control board 3, and the other end extends out of the electric control box body 1 through the electric control box heat dissipation part 111 to the second heat dissipation channel 15, to dissipate the heat conducted by the radiator body 22 through the outside wind, improving the heat dissipation efficiency.

[0039] Further, the heat sink body 22 is provided with a heat-conducting fin group 221 and a heat dissipation fin fixing portion 222, the heat-conducting fin group 221 is fixedly connected to the heat dissipation fin fixing portion 222; the heat dissipation fin fixing portion 222 is provided with a heat-conducting contact portion 2221, the PCB main control board 3 is provided with a heat-conducting connecting portion 31, the heat sink body 22 is connected to the heat-conducting connecting portion 31 of the PCB main control board 3 through the heat-conducting contact portion 2221 of the heat dissipation fin fixing portion 222, so as to conduct heat to the heat-conducting fin group 221 for dissipation; the electric control box heat dissipation portion 111 is designed as an opening, the heat-conducting fin group 221 extends to the second heat dissipation channel 15 through the electric control box heat dissipation portion 111, so as to dissipate the heat conducted by the heat-conducting fin group 221, thereby improving the heat dissipation efficiency of the electric control box; the heat-conducting contact portion 2221 and the heat-conducting connecting portion 31 can be coated with a high-heat-conducting coating, so as to improve the heat conduction efficiency after contact, thereby accelerating the heat dissipation efficiency of the electric control box.

[0040] Further, the heat-conducting fin group 221 is provided with a first heat-conducting fin 2211, a second heat-conducting fin 2212, a third heat-conducting fin 2213, a fourth heat-conducting fin 2214, a fifth heat-conducting fin 2215 and a plurality of sixth heat-conducting fins 2216, the first heat-conducting fin 2211, the second heat-conducting fin 2212, the third heat-conducting fin 2213, the fourth heat-conducting fin 2214, the fifth heat-conducting fin 2215 and the plurality of sixth heat-conducting fins 2216 are equidistantly connected to the heat dissipation fin fixing portion 222 for heat conduction; the heights of the first heat-conducting fin 2211, the second heat-conducting fin 2212, the third heat-conducting fin 2213, the fourth heat-conducting fin 2214, the fifth heat-conducting fin 2215 and the sixth heat-conducting fin 2216 increase in sequence, thereby reducing the wind resistance and improving the air flow in the second heat dissipation channel 15, so that the air generates disturbance when flowing through the heat-conducting fin group 221, increasing the contact area and contact time with the heat-conducting fin group 221, thereby improving the convective heat transfer efficiency and accelerating heat dissipation.

[0041] Further, the heat sink protection shell 21 is provided with a first heat sink air vent 211, a second heat sink air vent 212 and a third heat sink air vent 213, the first heat sink air vent 211 and the third heat sink air vent 213 are oppositely arranged, the second heat sink air vent 212 is oppositely arranged with the electric control box air outlet 113, so that the hot air is blown out from the third heat sink air vent 213 and the second heat sink air vent 212 respectively for heat dissipation; the arrangement angles of the first heat sink air vent 211, the second heat sink air vent 212 and the third heat sink air vent 213 are optimized according to the aerodynamic principle, so as to reduce the air flow resistance and improve the heat dissipation efficiency.

[0042] Further, the second radiator vent 212, the third radiator vent 213 and the electric control box air inlet 112 are designed as grilles, the grille design can improve air flow efficiency, reduce wind resistance and noise, prevent impurities from entering the electric control box, optimize the arrangement of the heat dissipation air duct, and help improve the heat dissipation effect of the electric control box.

[0043] In the embodiment of the utility model, the electric control box radiator 2 is further provided with a radiator fastener 23, the radiator fastener 23 is provided with a radiator fin fixing part mounting groove 231, the radiator fin fixing part mounting groove 231 is provided with a radiator fin fixing part fastening hole, the radiator fin fixing part 222 is provided with a radiator fin fixing part connecting hole 2222 corresponding to the radiator fin fixing part fastening hole one by one, and the electric control box support base 11 is further provided with a radiator fastener limiting hole 115 corresponding to the radiator fin fixing part fastening hole one by one, the radiator fin fixing part 222 is connected in the radiator fin fixing part mounting groove 231, and the fifth threaded fastener is connected in the radiator fastener limiting hole 115 to fasten the radiator fin fixing part 222 on the electric control box support base 11, so as to improve the connection stability of the electric control box radiator 2.

[0044] It should be understood that the utility model uses the terms "first", "second" and the like to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the utility model, the "first" information can also be referred to as "second" information, and similarly, the "second" information can also be referred to as "first" information. In addition, the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0045] The above is the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled persons in the technical field, without departing from the principle of the utility model, a number of improvements and deformations can be made, and these improvements and deformations are also regarded as the protection range of the utility model.

Claims

1. A heat dissipation structure of an electric control box applied to an outdoor unit of an air conditioner, characterized in that, Including: The electric control box body (1), the electric control box radiator (2) and the PCB main control board (3) for connecting control of electric control box, the electric control box body (1) is equipped with electric control box heat dissipation part (111), electric control box air inlet (112), electric control box air outlet (113), the electric control box air outlet (113) is communicated with the electric control box air inlet (112) and forms the first heat dissipation channel (14) for internal heat dissipation, the PCB main control board (3) is installed in the first heat dissipation channel (14) and is cooled through the first heat dissipation channel (14); The electric control box radiator (2) is connected in the electric control box heat dissipation part (111) and is connected with the PCB main control board (3) and is heat-conducted, and the electric control box radiator (2) forms the second heat dissipation channel (15) with the electric control box body (1);The wind of outside passes through the first heat dissipation channel (14) and the second heat dissipation channel (15) respectively and is cooled to the PCB main control board (3) and the electric control box radiator (2).

2. The heat dissipation structure of an electric control box applied to an outdoor unit of an air conditioner according to claim 1, characterized in that, The electric control box body (1) is equipped with electric control box support seat (11), electric control box cover (12), the electric control box heat dissipation part (111), electric control box air inlet (112), electric control box air outlet (113) are respectively arranged on the electric control box support seat (11);The electric control box cover (12) is connected in the electric control box support seat (11) and is surrounded to form the electric control box mounting cavity (13), the PCB main control board (3) is connected in the electric control box mounting cavity (13), the electric control box radiator (2) is connected with the PCB main control board (3) through the electric control box heat dissipation part (111) and is heat-conducted, the electric control box air inlet (112) is communicated with the electric control box air outlet (113) through the electric control box mounting cavity (13) and forms the first heat dissipation channel (14) and is cooled.

3. The heat dissipation structure of an electric control box applied to an outdoor unit of an air conditioner according to claim 2, characterized in that, The electric control box support seat (11) is also equipped with air guide structure (114), the air guide structure (114) is arranged in the electric control box mounting cavity (13), and the air guide structure (114) is arranged between the electric control box air outlet (113) and the electric control box mounting cavity (13) and exports hot air.

4. The heat dissipation structure of an electric control box applied to an outdoor unit of an air conditioner according to claim 3, characterized in that, The air guide structure (114) is equipped with first air guide plate (1141), second air guide plate (1142), third air guide plate (1143), fourth air guide plate (1144), the second air guide plate (1142) is fixedly connected in the electric control box mounting cavity (13), the first air guide plate (1141) is connected on the second air guide plate (1142) and forms an inclined slope;The fourth air guide plate (1144) is fixedly connected to the electric control box air outlet (113) relative to the first air guide plate (1141), and the fourth air guide plate (1144) is parallel to the second air guide plate (1142);One end of the third air guide plate (1143) is connected to the second air guide plate (1142), and the other end is connected to the fourth air guide plate (1144), which can export hot air in the electric control box mounting cavity (13).

5. The heat dissipation structure of an electric control box applied to an outdoor unit of an air conditioner according to claim 2, characterized in that, The electric control box cover (12) is provided with an electric control box connecting terminal seat (121), the electric control box connecting terminal seat (121) is connected on the PCB main control board (3), and the electric control box connecting terminal seat (121) is provided with a plurality of electric control box wiring ports (1211), which can be accessed by external connecting lines for power supply.

6. The heat dissipation structure of an electric control box applied to an outdoor unit of an air conditioner according to claim 1, characterized in that, The electric control box radiator (2) is provided with a radiator protection shell (21) and a radiator main body (22), the radiator protection shell (21) is arranged outside the electric control box heat dissipation part (111) and forms a second heat dissipation channel (15) with the electric control box main body (1); one end of the radiator main body (22) is connected with the PCB main control board (3), and the other end extends out of the electric control box main body (1) through the electric control box heat dissipation part (111) to dissipate heat in the second heat dissipation channel (15).

7. The heat dissipation structure of an electric control box applied to an outdoor unit of an air conditioner according to claim 6, characterized in that, The radiator main body (22) is provided with a heat conduction fin group (221) and a heat dissipation fin fixing part (222), the heat conduction fin group (221) is fixedly connected on the heat dissipation fin fixing part (222), the radiator main body (22) is connected with the PCB main control board (3) through the heat dissipation fin fixing part (222), and the heat conduction fin group (221) extends to the second heat dissipation channel (15) to dissipate heat through the electric control box heat dissipation part (111).

8. The heat dissipation structure of an electric control box applied to an outdoor unit of an air conditioner according to claim 7, characterized in that, The heat conduction fin group (221) is provided with a first heat conduction fin (2211), a second heat conduction fin (2212), a third heat conduction fin (2213), a fourth heat conduction fin (2214), a fifth heat conduction fin (2215) and a plurality of sixth heat conduction fins (2216), the first heat conduction fin (2211), the second heat conduction fin (2212), the third heat conduction fin (2213), the fourth heat conduction fin (2214), the fifth heat conduction fin (2215) and the plurality of sixth heat conduction fins (2216) are equidistantly connected on the heat dissipation fin fixing part (222) for heat conduction.

9. The heat dissipation structure of an electric control box applied to an outdoor unit of an air conditioner according to claim 7, characterized in that, The radiator protection shell (21) is provided with a first radiator air vent (211), a second radiator air vent (212) and a third radiator air vent (213), the first radiator air vent (211) and the third radiator air vent (213) are oppositely arranged, and the second radiator air vent (212) is oppositely arranged with the electric control box air outlet (113), so that hot air is blown out from the third radiator air vent (213) and the second radiator air vent (212) respectively for heat dissipation.

10. The heat dissipation structure of an electric control box applied to an outdoor unit of an air conditioner according to claim 9, characterized in that, The second radiator air vent (212), the third radiator air vent (213) and the electric control box air inlet (112) are designed as grilles.

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