CN223484380U - Electric control box, air conditioner external unit and air conditioner - Google Patents

Abstract

The application discloses an electric control box, an air conditioner external unit and an air conditioner, wherein the electric control box is used for the air conditioner external unit and comprises an electric control assembly, the electric control assembly comprises a radiator, a first device and a PCB, the radiator is arranged in a first area of the PCB, the first device is arranged in a second area of the PCB, the first area and the second area are arranged along a first direction, the box assembly is provided with a first air duct and a second air duct which are arranged side by side along the first direction and respectively provided with an air inlet and an air outlet which are independent of each other, the first air duct covers at least part of the first area, the radiator is arranged in the first air duct, the second air duct covers at least part of the second area, and at least part of the first device is arranged in the second air duct. The box assembly is provided with two mutually independent first air channels and two mutually independent second air channels, so that the air cooling of the radiator and the first device is realized through the first air channels and the second air channels respectively, and the radiating effect of the radiator and the first device is improved. Meanwhile, the accumulation of pollutants such as dust is prevented, and the stability and reliability of the electric control box during operation are improved.

Description

Electric control box, air conditioner external unit and air conditioner

Technical Field

The application relates to the technical field of air conditioners, in particular to an electric control box, an air conditioner external unit and an air conditioner.

Background

At present, in an air conditioner external unit, an electric control box is arranged in a shell of the air conditioner external unit, and cooling is realized through an air cooling mode.

In the related art, the radiator and other components (such as an inductive device, a capacitive device and the like) in the electric control box are arranged in the same air channel cavity, and as the components can generate heat, the temperature of air flowing through the components is increased, and the radiating effect of the radiator is affected when the air flows through the radiator further. Similarly, the temperature of the air flowing through the radiator will also rise, and the cooling effect on the components will also be poor when the air flows through other components.

Disclosure of utility model

The present application aims to solve at least one of the technical problems existing in the prior art. Therefore, an object of the present application is to provide an electric control box with good heat dissipation effect and high safety.

The application also provides an air conditioner external unit.

The application also provides an air conditioner.

According to the embodiment of the first aspect of the application, the electric control box is used for an air conditioner outdoor unit and comprises an electric control assembly, wherein the electric control assembly comprises a radiator, a first device and a PCB, the radiator is arranged in a first area of the PCB, the first device is arranged in a second area of the PCB, the first area and the second area are arranged along a first direction, the box assembly is formed with a first air duct and a second air duct which are arranged side by side along the first direction and respectively provided with an air inlet and an air outlet which are independent of each other, the first air duct covers at least part of the first area, the radiator is arranged in the first air duct, the second air duct covers at least part of the second area, and at least part of the first device is arranged in the second air duct.

In the application, the box assembly is provided with the first air duct and the second air duct which are mutually independent, so that the air cooling of the radiator and the first device is respectively realized through the first air duct and the second air duct, and the heat dissipation effect of the radiator and the first device is improved. Meanwhile, pollutants such as dust attached to the radiator can be effectively prevented from being blown to the first device under the action of air flow, so that the problems of short circuit, breakdown and the like caused by accumulation of the pollutants such as dust on the first device are prevented, and the stability and reliability of the electric control box during operation are further improved.

According to some embodiments of the application, the box assembly includes a first enclosure and a third enclosure disposed opposite each other in the first direction, and a second enclosure and a fourth enclosure disposed opposite each other in the second direction, the first enclosure, the second enclosure, the third enclosure, and the fourth enclosure enclosing the first air duct and defining a first air inlet and a first air outlet.

According to some embodiments of the application, the fourth coaming is disposed on a side of the first air duct adjacent to the PCB, the fourth coaming forms a first avoiding opening opposite to the PCB in the second direction, and the radiator is adapted to extend into the first air duct through the first avoiding opening.

According to some embodiments of the application, the electronic control assembly further comprises a power device, wherein the power device is arranged in the first area, can exchange heat with a radiator, and is arranged on one side of the radiator away from the second coaming.

According to some embodiments of the application, the radiator comprises a radiating substrate and a plurality of radiating fins, wherein the radiating substrate is connected with the PCB, the radiating fins are arranged on one side of the radiating substrate, which is close to the second coaming, the radiating fins are arranged at intervals along the first direction, a radiating runner is formed between any two adjacent radiating fins, and the extending direction of the radiating runner is the same as that of the first air duct.

According to some embodiments of the application, the electronic control box further comprises a radiator support, and the radiator support is mounted on the PCB and used for being connected and matched with the radiating substrate.

According to some embodiments of the application, the box assembly includes a fifth enclosure and a sixth enclosure, the fifth enclosure and the sixth enclosure being disposed opposite and spaced apart in the first direction, a seventh enclosure connected between the fifth enclosure and the sixth enclosure, and the seventh enclosure being disposed opposite the PCB in the second direction.

According to some embodiments of the application, the fifth shroud is disposed on a side of the sixth shroud adjacent to the first duct, and the first shroud and the fifth shroud are coplanar and integrally disposed.

According to some embodiments of the application, the first air outlet and the second air outlet are provided on the same side of the cartridge assembly in the third direction.

According to some embodiments of the application, the box assembly further comprises a mounting seat, wherein the mounting seat is used for being connected and matched with the electric control assembly, and the mounting seat is arranged on one side of the PCB, which is away from the first air duct.

According to some embodiments of the application, the first device comprises at least one of an inductive device and a capacitive device.

An external air conditioner according to an embodiment of the second aspect of the present application includes the above-described electronic control box.

An air conditioner according to an embodiment of a third aspect of the present application includes the air conditioner outdoor unit described above.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

The foregoing and/or additional aspects and advantages of the application will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic structural view of an electronic control box according to an embodiment of the present application;

Fig. 2 is a schematic diagram of a second embodiment of an electronic control box according to the present application;

Fig. 3 is an exploded view of an electronic control box according to one embodiment of the present application;

Fig. 4 is a second exploded view of the electronic control box according to one embodiment of the present application;

fig. 5 is an exploded view of a third electronic control box according to one embodiment of the present application;

fig. 6 is a schematic view of air inlet and outlet of the electronic control box according to an embodiment of the present application;

Fig. 7 is a cross-sectional view of a first electronic control box according to one embodiment of the present application;

Fig. 8 is a second cross-sectional view of an electronic control box according to an embodiment of the present application;

FIG. 9 is a schematic view of a cartridge assembly according to one embodiment of the application;

FIG. 10 is a schematic diagram II of a cartridge assembly according to one embodiment of the application;

FIG. 11 is an exploded view of an electronic control assembly according to one embodiment of the present application;

Fig. 12 is a schematic view illustrating a structure of an air conditioner according to an embodiment of the present application.

Reference numerals:

an air conditioner external unit 100;

An electronic control box 10;

The electronic control assembly 1, the PCB 11, the first area 101, the second area 102, the radiator 12, the radiating substrate 121, the radiating fin 122, the first device 13, the power device 14 and the radiator support 15;

The box assembly 2, the first air duct 201, the first air inlet 2011, the first air outlet 2012, the second air duct 202, the second air inlet 2021, the second air outlet 2022, the first shroud 21, the second shroud 22, the third shroud 23, the fourth shroud 24, the first escape opening 241, the fifth shroud 25, the sixth shroud 26, the seventh shroud 27, the support plate section 28, and the mounting base 29.

Detailed Description

Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application.

An electronic control box 10 according to an embodiment of the present application, the electronic control box 10 being used for an air conditioner external unit, is described below with reference to fig. 1 to 11. The electric control box 10 is arranged in a shell of the air conditioner external unit, so that the running state of equipment (such as a compressor, a fan and the like) in the air conditioner external unit can be controlled and regulated through the electric control box 10.

As shown in fig. 1 and 3, the electronic control box 10 of the present application includes an electronic control assembly 1 and a box assembly 2, where the box assembly 2 is formed with a first air duct 201 and a second air duct 202 which are arranged side by side along a first direction and have mutually independent air inlets and air outlets, respectively, i.e., the first air duct 201 has a first air inlet 2011 and a first air outlet 2012, and the second air duct 202 has a second air inlet 2021 and a second air outlet 2022. That is, the air inlet and outlet modes of the first air duct 201 and the second air duct 202 are independent of each other and do not interfere with each other, so that the air flow in the first air duct 201 does not interfere with the air flow in the second air duct 202.

Referring to fig. 3, the electronic control assembly 1 includes a heat sink 12, a first device 13, and a PCB 11, where the PCB 11 is a mounting carrier for the first device 13 and the heat sink 12, and the first device 13 and the heat sink 12 may be respectively connected and matched with the PCB 11.

Wherein the PCB board 11 has a first area 101 and a second area 102 arranged in a first direction, and the heat sink 12 is arranged at the first area 101 and the first device 13 is arranged at the second area 102 to partition the devices in the electronic control assembly 1.

The "first device 13" refers to a type of electric device, including but not limited to a capacitive device, an inductive device, and the like. Meanwhile, as shown in fig. 3, when the PCB 11 is vertically arranged in the electronic control box 10, the "first direction" is a height direction of the PCB 11.

As shown in fig. 2 and 3, the first area 101 is arranged corresponding to the first air duct 201, and the second area 102 is arranged corresponding to the second air duct 202, so that the air flow flowing through the first air duct 201 can cool the radiator 12 arranged in the first area 101 in the PCB 11, the air flow flowing through the second air duct 202 can cool the first device 13 arranged in the second area 102 in the PCB 11, that is, the air flowing through the first device 13 and the air flowing through the radiator 12 are separated, so that the radiator 12 and the first device 13 can be cooled by air cooling respectively, the heat dissipation effect at the radiator 12 can be improved, and the overall reliability of the electronic control box 10 is improved.

In the present invention, in the air conditioner outdoor unit 100, the electronic control box 10 is disposed in a casing of the air conditioner outdoor unit 100, and cooling is achieved by air cooling. In the related art, the radiator 12 and other components (such as an inductive device and a capacitive device) in the electronic control box 10 are arranged in the same air channel cavity, and as the components generate heat, the temperature of the air flowing through the components increases, and the radiating effect of the radiator 12 is affected when the air flows through the radiator 12 further. Similarly, the temperature of the air flowing through the radiator 12 will also rise, and the cooling effect on the components will also be deteriorated when the air flows further through other components.

In the application, two mutually independent first air channels 201 and second air channels 202 are formed at the box assembly 2, so that the air cooling and the temperature reduction of the radiator 12 and the first device 13 are respectively realized through the first air channels 201 and the second air channels 202, and the heat dissipation effect of the radiator 12 and the first device 13 is improved.

It will be appreciated that in the first duct 201, air flowing through the heat sink 12 is prevented from flowing through the first component 13, and in the second duct 202, air flowing through the first component 13 is prevented from flowing through the heat sink 12. That is, by partitioning the components on the PCB 11 and by matching with the first air duct 201 and the second air duct 202 at the box assembly 2, the air for radiating the electric control box 10 can be split, so as to radiate and cool the radiator 12 and the first device 13 respectively, and improve the air-cooling effect on the radiator 12 and the first device 13.

It should be noted that, when the radiator 12 is at a high temperature during operation, air can flow through the radiator 12, and air around the radiator 12 will generate convection, so that particles (such as dust) in the air are easy to adhere to the radiator 12. If the radiator 12 and the first device 13 are disposed in the same space, under the action of the air flow, the pollutants such as dust attached to the radiator 12 are accumulated on the first device 13, which easily causes problems such as short circuit and breakdown, and affects the reliability of the electronic control box 10.

Further, by arranging the radiator 12 and the first device 13 at the first air duct 201 and the second air duct 202 respectively, it is also possible to effectively prevent contaminants such as dust attached to the radiator 12 from blowing to the first device 13 under the action of the air flow, so as to prevent the problems of short circuit, breakdown and the like caused by accumulation of contaminants such as dust on the first device 13, and further improve the stability and reliability of the electronic control box 10 during operation.

As shown in connection with fig. 9 and 10, in some embodiments of the present application, the box assembly 2 includes a first shroud 21, a second shroud 22, a third shroud 23, and a fourth shroud 24, the first shroud 21 and the third shroud 23 being disposed opposite in a first direction, the second shroud 22 and the fourth shroud 24 being disposed opposite in a second direction, the first shroud 21, the second shroud 22, the third shroud 23, and the fourth shroud 24 surrounding a first air duct 201 and defining a first air inlet 2011 and a first air outlet 2012.

Wherein, second bounding wall 22 and fourth bounding wall 24 connect respectively between first bounding wall 21 and third bounding wall 23 to enclose through first bounding wall 21, second bounding wall 22, third bounding wall 23 and fourth bounding wall 24 and form first wind channel 201, make box subassembly 2 the structure of first wind channel 201 department regular (roughly take the cuboid form), be convenient for with automatically controlled subassembly 1 installation cooperation.

As shown in conjunction with fig. 2 and 3, the PCB board 11 is disposed on a side adjacent to the fourth peripheral board 24, and the second peripheral board 22 is disposed opposite at least part of the PCB board 11 in the second direction, with the heat sink 12 being disposed between the second peripheral board 22 and the PCB board 11. The air in the first air duct 201 can exchange heat with the radiator 12 when flowing through the radiator 12, so as to bring heat at the radiator 12 to the outside of the box assembly 2, thereby realizing heat dissipation and temperature reduction of the radiator 12.

In a further embodiment of the present application, as shown in fig. 1 and 4, the fourth surrounding plate 24 is disposed on a side of the first air duct 201 adjacent to the PCB 11, and the fourth surrounding plate 24 is formed with a first avoiding opening 241 for avoiding the PCB 11, so that the electronic control assembly 1 is disposed at the first avoiding opening 241 formed at the fourth surrounding plate 24, so as to facilitate the installation and matching of the electronic control assembly 1 and the box assembly 2.

It can be appreciated that the first avoiding opening 241 is provided at the fourth surrounding plate 24 of the box assembly 2 according to the present application, and the first avoiding opening 241 can avoid the radiator 12, so that the radiator 12 can extend into the first air duct 201 through the first avoiding opening 241, and the heat dissipation and cooling effect of the air in the first air duct 201 on the radiator 12 is improved. That is, the heat sink 12 is disposed on the airflow path in the first air duct 201, and the air flowing through the first air duct 201 can be fully contacted with the heat sink 12, thereby enhancing the heat dissipation effect at the heat sink 12.

As shown in conjunction with fig. 1 and 4, the PCB 11 is disposed on a side of the fourth enclosure 24 facing away from the second enclosure 22, and the heat sink 12 is disposed on a surface (i.e., the first region 101) of the PCB 11 opposite the second enclosure 22. After the electric control assembly 1 and the box assembly 2 are installed and matched, the radiator 12 stretches into the first air duct 201 from the first avoidance opening 241, and the PCB 11 can shield the first avoidance opening 241 so as to prevent air flow in the first air duct 201 from flowing out of the first avoidance opening 241 through the PCB 11, so that the air circulation effect in the first air duct 201 is ensured.

As shown in fig. 1, 2 and 6, in some embodiments of the present application, the first air inlet 2011 and the first air outlet 2012 of the first air duct 201 are formed at two sides of the box assembly 2 in the third direction, such that the first air inlet 2011 and the first air outlet 2012 are disposed at two sides of the radiator 12 in the third direction, and air entering the first air duct 201 through the first air inlet 2011 is discharged from the first air outlet 2012 after flowing through the radiator 12, so as to transfer heat at the radiator 12 to the outside of the box assembly 2.

As shown in fig. 11, in some embodiments of the application, the electronic control assembly 1 further comprises a power device 14, the power device 14 being arranged at the first region 101, and the power device 14 being heat exchangeable with the heat sink 12, and the power device 14 being arranged on a side of the heat sink 12 facing away from the second enclosure 22.

The "power device 14" may include a rectifier bridge, a semiconductor power device in a PFC (Power Factor Correction: power factor correction) circuit, an inverter module, and the like.

It should be noted that, the power device 14 is disposed on the PCB board 11 and located at the first area 101, the heat sink 12 is also disposed at the first area 101, and the heat sink 12 is disposed on a side of the power device 14 away from the PCB board 11, and the heat sink 12 may exchange heat with the power device 14 and shield the power device 14 to prevent the power device 14 from being exposed. Therefore, the heat at the power device 14 can be transmitted outwards through the radiator 12 to meet the heat dissipation requirement of the power device 14, and the power device 14 can be prevented from being exposed in the first air duct 201, so that the power device 14 is protected, the power device 14 is effectively prevented from being polluted by pollutants such as dust, and the stability and reliability of the electronic control box 10 during operation are improved.

As shown in fig. 11, in some embodiments of the present application, the heat sink 12 includes a heat dissipating substrate 121 and a plurality of heat dissipating fins 122, where the heat dissipating substrate 121 is connected to the PCB 11, and the plurality of heat dissipating fins 122 are disposed on a side of the heat dissipating substrate 121 adjacent to the second enclosure 22 (i.e., a side of the heat dissipating substrate 121 away from the PCB 11), and heat of the power device 14 can be transferred to the side of the heat dissipating fins 122 through the heat dissipating substrate 121. When the air in the first air duct 201 flows through the cooling fins 122, the heat at the cooling fins 122 can be transferred to the outside of the first air duct 201, so that the cooling of the power device 14 is realized.

Further referring to fig. 2 and 3, the plurality of cooling fins 122 are arranged at intervals along the first direction, and a cooling flow channel is formed between any two adjacent cooling fins 122, and the extending direction of the cooling flow channel is the same as that of the first air duct 201, so that the resistance of the air in the first air duct 201 when flowing through the cooling fins 122 can be reduced, and the air circulation effect in the first air duct 201 can be improved.

It should be noted that the "extending direction of the heat dissipation channel" refers to a general direction of the heat dissipation channel for air circulation, for example, an air inlet side and an air outlet side of the heat dissipation channel are respectively located at two sides of the heat sink 12 in the third direction, so as to facilitate the heat sink 12 to be arranged corresponding to the first air duct 201.

As shown in fig. 11, in some embodiments of the present application, the heat dissipation fins 122 extend in a wave manner in the second direction, so that the contact area between the heat dissipation fins 122 and the air in the first air duct 201 can be increased, and further the heat dissipation efficiency at the heat dissipation device 12 can be improved, and the heat dissipation and cooling effects of the heat dissipation device 12 on the power device 14 are improved.

Referring to fig. 11, in some embodiments of the present application, the heat sink 12 further includes a heat sink holder 15, the heat sink holder 15 is disposed on the PCB board 11, and the heat sink holder 15 is for connection-fitting with the heat sink substrate 121. The heat sink bracket 15 is a mounting carrier of the heat sink 12 to support the heat sink 12 in the second direction by the heat sink bracket 15 and fixedly connect the heat sink 12 with the PCB board 11.

In the assembly process of the radiator 12, the radiator support 15 and the PCB 11, the radiating substrate 121 may be connected with the radiator support first to fix the radiator 12 and the radiator support 15, and then the radiator 12 and the radiator support 15 are assembled and connected together on the PCB 11 to realize connection and fixation of the radiator 12 and the PCB 11.

Wherein the radiator support 15 is disposed at a side of the PCB 11 opposite to the second shroud 22, and the radiator support 15 may surround and shield the power device 14 in a circumferential direction, i.e., prevent air on an air inlet side of the first duct 201 from being directly blown toward the power device 14, reducing a risk of dust and other pollutants adhering to the power device 14.

It will be appreciated that the heat sink bracket 15 is configured as a direct structure penetrating along the second direction, so as to avoid the power device 14 while meeting the connection and matching requirements with the PCB 11 and the heat sink 12, so as to match the heat dissipation substrate 121 with the power device 14. Preferably, the power device 14 is in fit with the heat dissipation substrate 121 to improve the heat exchange efficiency between the power device 14 and the heat sink 12.

As shown in fig. 2, in some embodiments of the present application, the case assembly 2 includes a fifth enclosure 25, a sixth enclosure 26, and a seventh enclosure 27, the fifth enclosure 25 and the sixth enclosure 26 being disposed opposite and spaced apart in a first direction, the seventh enclosure 27 being connected between the fifth enclosure 25 and the sixth enclosure 26, and the seventh enclosure 27 being disposed opposite the PCB panel 11 in the second direction.

With further reference to fig. 10, a second air duct 202 opened to one side of the PCB panel 11 is formed around by the fifth, sixth and seventh enclosures 25, 26 and 27, and a second air inlet 2021 and a second air outlet 2022 are formed.

As shown in fig. 2, 3 and 10, after the PCB 11 is assembled with the box assembly 2, the PCB 11 may be blocked at the open side of the second air duct 202 to define an air flow path in the second air duct 202, so that air flowing through the second air duct 202 may be fully contacted with the first device 13, so as to achieve heat dissipation and temperature reduction of the first device 13.

It will be appreciated that the second air duct 202, which is open to one side of the PCB board 11, may be formed around by the fifth enclosure 25, the sixth enclosure 26 and the seventh enclosure 27 to form an open structure at the second air duct 202 adapted to receive the first device 13, thereby facilitating the first device 13 on the PCB board 11 to extend into the second air duct 202 from the open side of the second air duct 202 (i.e., the side opposite the seventh enclosure 27).

As shown in fig. 10, in some embodiments of the present application, the box assembly 2 further includes a support plate section 28, the support plate section 28 being connected between the fifth and sixth enclosures 25, 26 to support the fifth and sixth enclosures 25, 26 in the first direction by the support plate section 28, improving the structural strength of the box assembly 2.

As shown in connection with fig. 3 and 10, the support plate segment 28 is disposed adjacent to the air outlet side of the second air duct 202, and the support plate segment 28 may define, together with the fifth shroud 25, the sixth shroud 26, and the seventh shroud 27, a second air outlet 2022 forming the second air duct 202 to promote structural strength of the cartridge assembly 2 at the second air outlet 2022. Meanwhile, the supporting plate section 28 can avoid the first device 13 arranged on the PCB 11, so that interference between the supporting plate section 28 and the first device 13 is effectively prevented, and the electric control assembly 1 and the box assembly 2 are convenient to assemble.

Referring to fig. 10, in some embodiments of the present application, the first and fifth enclosures 21, 25 are coplanar and integrally provided, so that space occupied by the cartridge assembly 2 in the first direction can be saved and the layout of the electronic control assembly 1 in the electronic control cartridge 10 can be made compact.

The fifth shroud 25 is disposed on a side of the sixth shroud 26 adjacent to the first air passage 201 in the first direction. That is, when the fifth shroud 25 and the first shroud 21 are integrally arranged, the sixth shroud 26, the fifth shroud 25 (also the first shroud 21), and the third shroud 23 are sequentially arranged at intervals in the first direction.

It will be appreciated that the first and fifth enclosures 21, 25 in the box assembly 2 are arranged co-planar such that the first and fifth enclosures 21, 25 are constructed as a single partition structure by which the first and second air ducts 201, 202 are separated, i.e. the two side surfaces of the partition structure in the first direction face the first and second air ducts 201, 202, respectively. The above arrangement mode of integrating the first coaming 21 and the fifth coaming 25 can reduce the number of plate structures in the first air duct 201 and the second air duct 202 in the box assembly 2, and enable the first air duct 201 and the second air duct 202 to be closely arranged in the first direction, so that devices (such as the radiator 12, the first device 13, the power device 14 and the like) on the PCB 11 are compactly arranged, and the space utilization rate of the electronic control box 10 is improved.

As shown in fig. 2, in some embodiments of the present application, the first air outlet 2012 and the second air outlet 2022 are disposed on the same side of the box assembly 2 in the third direction, so as to ensure the air outlet effect at the first air duct 201 and the second air duct 202, prevent the air discharged through the first air outlet 2012 from entering the second air duct 202, and prevent the air discharged through the second air outlet 2022 from entering the first air duct 201, thereby improving the heat dissipation and cooling effects on devices at the first air duct 201 and the second air duct 202.

It should be noted that, when the electronic control box 10 is applied to the air conditioner external unit 100, the arrangement of the first air outlet 2012 and the second air outlet 2022 on the same side of the electronic control box 10 facilitates the arrangement of the electronic control box 10 in the air conditioner external unit 100, so as to communicate the first air outlet 2012 and the second air outlet 2022 with the same exhaust space (such as a fan chamber side) in the air conditioner external unit 100.

As shown in fig. 3, in some embodiments of the present application, the box assembly 2 further includes a mounting seat for mounting the electronic control assembly 1, and the mounting seat is disposed on a side of the PCB board 11 facing away from the first air duct 201.

Wherein, mount pad 29 is used for connecting and cooperating with the coaming structure in box subassembly 2 (first coaming 21, second coaming 22, third coaming 23, fourth coaming 24, fifth coaming 25, sixth coaming 26 and seventh coaming 27 as described above), and fix electric control subassembly 1 on box subassembly 2, in order to prevent electric control subassembly 1 from rocking relative to box subassembly 2, promote the cooperation reliability of electric control subassembly 1 and box subassembly 2.

It can be understood that during the assembly process of the electronic control box 10, the electronic control assembly 1 may be assembled on the mounting seat 29, and then the plurality of coaming structures in the box assembly 2 and the mounting seat 29 are connected and matched (such as positioning and matching, clamping and matching, and fixing connection, etc.), and then the electronic control assembly 1 and the mounting seat 29 are assembled and fixed on the plurality of coaming structures together, so as to realize the assembly of the electronic control box 10.

The main connection and matching mode of the mounting seat 29 and the electric control assembly 1 is realized through the matching between the mounting seat 29 and the PCB 11. For example, when the mounting seat 29 is provided with a chute, the PCB 11 may be arranged on the mounting seat 29 in a sliding manner, and when the mounting seat 29 is provided with a buckle, the PCB 11 may be fixed on the mounting seat 29 in a snap-fit manner with the mounting seat 29. Thus, the manner of assembling the mount 29 and the PCB 11 is not particularly limited.

Meanwhile, the connection and matching mode between the mounting seat 29 and the coaming structure in the box assembly 2 is not particularly limited, and the mounting seat 29 and the coaming structure can be matched through clamping connection, threaded connection of a threaded piece and the like, namely, the fixing and matching of the mounting seat 29 and the coaming structure can be met.

It should be noted that, the assembly mode of the electronic control box 10 is not limited to the design according to the assembly requirement of the electronic control box 10, for example, the electronic control assembly 1 (i.e. the PCB board 11 and the devices arranged on the PCB board 11) is first matched with a plurality of coaming structures in the box assembly 2, so that the first devices 13 and the heat sink 12 are correspondingly arranged in the corresponding air duct structures, at this time, the positions of the electronic control assembly 1 and the coaming structures are relatively fixed, and then the electronic control assembly 1 can be fixed on the box assembly 2 through the matching of the mounting seat 29 and the coaming structures, so as to realize the assembly of the electronic control assembly 1.

In some embodiments of the application, the first device 13 comprises at least one of an inductive device and a capacitive device. It will be appreciated that the first device 13 may include, but is not limited to, the inductive device and the capacitive device described above, and may also include a functional device that generates less heat when the electronic control box 10 is in an operating state, which is not specifically limited herein.

In the present application, by disposing the first device 13, which generates less heat in the operation state of the electronic control box 10, in the second air duct 202, the first device 13 can be cooled by the air flowing through the second air duct 202. Referring to fig. 1, when the electronic control assembly 1 is assembled to the cartridge assembly 2, at least a portion of the first device 13 is exposed outside the cartridge assembly 2, that is, a portion of the first device 13 is disposed outside the second air path 202.

It should be noted that, the first device 13 disposed at the outer portion of the second air duct 202 is disposed adjacent to the air inlet area of the second air duct 202, so that when the air outside the box assembly 2 flows into the second air duct 202, the air can flow through the first device 13, so as to dissipate heat and cool the first device 13 disposed outside the second air duct 202. The number of the first devices 13 may be plural, and the meaning of "at least part of the first devices 13" may include at least one of the plural first devices 13, and may also be a part of one first device 13.

In summary, the electronic control box 10 according to the embodiment of the present application at least includes the following advantages:

(1) By forming two mutually independent air channels in the box assembly 2, the radiator 12 and the power device 14 matched with the radiator 12 in a heat exchange manner are arranged at the same air channel (namely the first air channel 201), and the first device 13 is arranged at the other air channel, so that air in the box assembly 2 can flow separately, namely, air flowing through the radiator 12 can not flow through the first device 13 in the second air channel 202 any more, air flowing through the first device 13 can not flow through the radiator 12 in the first air channel 201 any more, the heat dissipation efficiency of the electronic control box 10 can be improved, the temperature of short circuit, breakdown and the like caused by dust accumulation on the devices can be effectively prevented, and the reliability of the electronic control box 10 is improved.

(2) The layout of each part in the electric control box 10 is compact, so that the space can be saved while the heat dissipation requirement of the device is fully met, and the space utilization rate of the electric control box 10 is improved.

According to the air conditioner external unit 100 of the embodiment of the application, the air conditioner external unit 100 comprises the electric control box 10, and the electric control box 10 has high heat dissipation efficiency, good stability and high reliability during operation.

As shown in fig. 12, in some embodiments of the present application, the air conditioner external unit 100 includes a case assembly 20, and the electronic control box 10 is disposed within the case assembly 20 to supply air to the electronic control box 10 by air flowing into the case assembly 20, thereby implementing a heat dissipation function of the electronic control box 10.

For example, the first air inlet 2011 of the first air duct 201 and the first air inlet 2011 of the second air duct 202 in the electronic control box 10 are communicated with the compressor cavity of the shell assembly 20, air in the compressor cavity can flow into the first air duct 201 and the second air duct 202 respectively, and the first air outlet 2012 of the first air duct 201 and the second air outlet 2022 of the second air duct 202 are communicated with the fan cavity respectively, so that negative pressure is generated on the fan cavity side through the operation of the fan, and the air on the compressor cavity side is sucked into the first air duct 201 and the second air duct 202, so that the heat dissipation requirement of electronic control devices in the electronic control box 10 is met.

It should be noted that, the connection and matching manner of the electronic control box 10 and the shell assembly 20 is not limited herein, and can meet the air inlet and outlet requirements of the electronic control box 10.

According to an embodiment of the present application, an air conditioner includes the air conditioner outdoor unit 100 described above.

The advantages of the air conditioner and the air conditioner external unit compared with the prior art are the same, and are not described in detail herein.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

In the description of the application, a "first feature" or "second feature" may include one or more of such features.

In the description of the present application, "plurality" means two or more.

In the description of the application, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween.

In the description of the application, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," 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, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.

Claims (13)

1. An automatically controlled box, its characterized in that, automatically controlled box is used for the outer machine of air conditioner, automatically controlled box includes:

The electronic control assembly comprises a radiator, a first device and a PCB, wherein the radiator is arranged in a first area of the PCB, the first device is arranged in a second area of the PCB, and the first area and the second area are arranged along a first direction;

The box assembly is provided with a first air duct and a second air duct which are arranged side by side along the first direction and respectively provided with an air inlet and an air outlet which are independent of each other, the first air duct is covered on at least part of the first area, the radiator is arranged in the first air duct, the second air duct is covered on at least part of the second area, and at least part of the first device is arranged in the second air duct.

2. The electronic control cartridge of claim 1, wherein the cartridge assembly comprises:

the first coaming and the third coaming are oppositely arranged in the first direction;

The first air inlet and the first air outlet are defined by surrounding the first surrounding plate, the second surrounding plate, the third surrounding plate and the fourth surrounding plate.

3. The electronic control box according to claim 2, wherein the fourth coaming is disposed on a side of the first air duct adjacent to the PCB, the fourth coaming forms a first avoiding opening opposite to the PCB in the second direction, and the radiator is adapted to extend into the first air duct through the first avoiding opening.

4. The electrical control box of claim 3, wherein the electrical control assembly further comprises a power device, wherein the power device is disposed in the first region, is capable of exchanging heat with a heat sink, and is disposed on a side of the heat sink facing away from the second enclosure.

5. An electronic control box according to claim 3, wherein the heat sink comprises:

the heat dissipation substrate is connected with the PCB;

The radiating fins are arranged on one side, close to the second coaming, of the radiating substrate, the radiating fins are distributed at intervals along the first direction, a radiating runner is formed between any two adjacent radiating fins, and the extending direction of the radiating runner is the same as that of the first air duct.

6. The electronic control box of claim 5, further comprising a heat sink bracket mounted to the PCB and adapted to be in a mating connection with the heat sink substrate.

7. The electronic control cartridge of claim 2, wherein the cartridge assembly comprises:

The fifth coaming and the sixth coaming are opposite to each other in the first direction and are arranged at intervals;

And the seventh coaming is connected between the fifth coaming and the sixth coaming, and is arranged opposite to the PCB in the second direction.

8. The electronic control box of claim 7, wherein the fifth shroud is disposed on a side of the sixth shroud adjacent the first air duct, and the first shroud and the fifth shroud are coplanar and integrally disposed.

9. The electronic control box of claim 7, wherein the first air outlet and the second air outlet of the second air duct are disposed on the same side of the box assembly in a third direction.

10. The electronic control box of claim 2, wherein the box assembly further comprises a mounting seat for connection mating with the electronic control assembly, and wherein the mounting seat is disposed on a side of the PCB that faces away from the first air duct.

11. The electronic control cartridge of claim 1, wherein the first device comprises at least one of an inductive device and a capacitive device.

12. An air conditioner external unit comprising the electronic control box according to any one of claims 1 to 11.

13. An air conditioner comprising the air conditioner external unit according to claim 12.