Electric control box, air conditioner outdoor unit and air conditioner

Abstract

The application discloses an electric control box, an air conditioner outdoor unit and an air conditioner. The electric control box is used for the air conditioner outdoor unit. The electric control box comprises an electric control assembly, the electric control assembly comprises a radiator, a first device and a PCB board, the radiator is arranged in a first area of the PCB board, the first device is arranged in a second area of the PCB board, and the first area and the second area are arranged along a first direction. A 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 have independent air inlets and air outlets. The first air duct covers at least part of the first area, and 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 formed with two independent first and second air ducts, so that the radiator and the first device are respectively cooled by the first and second air ducts, and the heat dissipation effect of the radiator and the first device is improved. Meanwhile, the accumulation of dust and other pollutants is prevented, and the stability and reliability of the electric control box during operation are improved.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to an electrical control box, an outdoor unit of an air conditioner, and an air conditioner. Background Technology

[0002] Currently, in air conditioner outdoor units, the electrical control box is located inside the unit's casing and is cooled by air cooling.

[0003] In related technologies, the heat sink and other components (such as inductive and capacitive devices) in the control box are arranged in the same air duct cavity. Since these components also generate heat, the temperature of the air flowing through them increases, which affects the heat dissipation effect of the heat sink when it flows further through it. Similarly, the temperature of the air flowing through the heat sink also increases, which reduces the cooling effect on other components when it flows further through them. Summary of the Invention

[0004] This application aims to at least solve one of the technical problems existing in the prior art. To this end, one object of this application is to provide an electrical control box that has good heat dissipation and high safety.

[0005] This application also proposes an outdoor unit for an air conditioner.

[0006] This application also proposes an air conditioner.

[0007] According to an embodiment of the first aspect of this application, the electrical control box is used for an outdoor unit of an air conditioner. The electrical control box includes: an electrical control component, which includes a heat sink, a first device, and a PCB board. The heat sink is arranged in a first region of the PCB board, and the first device is arranged in a second region of the PCB board. The first region and the second region are arranged along a first direction. The box assembly forms a first air duct and a second air duct arranged side by side along the first direction and having independent air inlets and outlets respectively. The first air duct covers at least a portion of the first region, and the heat sink is disposed within the first air duct. The second air duct covers at least a portion of the second region, and at least a portion of the first device is disposed within the second air duct.

[0008] In this application, the box assembly has two independent first and second air ducts to achieve air cooling of the heat sink and the first device, respectively, thereby improving the heat dissipation effect of the heat sink and the first device. Simultaneously, it effectively prevents dust and other contaminants adhering to the heat sink from being blown towards the first device by the airflow, thus preventing the accumulation of dust and other contaminants on the first device and causing problems such as short circuits and breakdowns, further enhancing the stability and reliability of the electrical control box during operation.

[0009] According to some embodiments of this application, the box assembly includes: a first enclosure and a third enclosure, the first enclosure and the third enclosure being disposed opposite to each other in a first direction; a second enclosure and a fourth enclosure, the second enclosure and the fourth enclosure being disposed opposite to each other in a second direction, the first enclosure, the second enclosure, the third enclosure and the fourth enclosure surrounding each other to form the first air duct, and defining a first air inlet and a first air outlet.

[0010] According to some embodiments of this application, the fourth enclosure is disposed on the side of the first air duct adjacent to the PCB board, and the fourth enclosure forms a first clearance opening opposite to the PCB board in the second direction, and the heat sink is adapted to extend into the first air duct through the first clearance opening.

[0011] According to some embodiments of this application, the electronic control assembly further includes a power device disposed in the first region, and the power device is capable of exchanging heat with the heat sink and is disposed on the side of the heat sink away from the second enclosure.

[0012] According to some embodiments of this application, the heat sink includes: a heat sink substrate connected to the PCB board; and a plurality of heat sinks disposed on the side of the heat sink substrate adjacent to the second enclosure, the plurality of heat sinks being arranged at intervals along the first direction, and a heat dissipation channel being formed between any two adjacent heat sinks, the extension direction of the heat dissipation channel being the same as the extension direction of the first air duct.

[0013] According to some embodiments of this application, the electrical control box further includes a heat sink bracket, which is mounted on the PCB board and used to connect and cooperate with the heat sink substrate.

[0014] According to some embodiments of this application, the box assembly includes: a fifth enclosure and a sixth enclosure, the fifth enclosure and the sixth enclosure being disposed opposite to and spaced apart in a first direction; and a seventh enclosure, the seventh enclosure being connected between the fifth enclosure and the sixth enclosure, and the seventh enclosure being disposed opposite to the PCB board in a second direction.

[0015] According to some embodiments of this application, the fifth enclosure is disposed on the side of the sixth enclosure adjacent to the first air duct, and the first enclosure and the fifth enclosure are coplanar and integrally formed.

[0016] According to some embodiments of this application, the first air outlet and the second air outlet are located on the same side of the box assembly in a third direction.

[0017] According to some embodiments of this application, the box assembly further includes a mounting base for connecting and cooperating with the electronic control component, and the mounting base is disposed on the side of the PCB board away from the first air duct.

[0018] According to some embodiments of this application, the first device includes at least one of an inductive device and a capacitive device.

[0019] An outdoor unit for an air conditioner according to a second aspect of this application includes the aforementioned electrical control box.

[0020] An air conditioner according to a third aspect of this application includes the above-described outdoor unit.

[0021] Additional aspects and advantages of this 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 this application. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of the structure of the electrical control box according to an embodiment of this application. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the structure of the electrical control box according to an embodiment of this application. Figure 2 ;

[0025] Figure 3 The explosion of the electrical control box according to one embodiment of this application. Figure 1 ;

[0026] Figure 4 The explosion of the electrical control box according to one embodiment of this application. Figure 2 ;

[0027] Figure 5 The explosion of the electrical control box according to one embodiment of this application. Figure 3 ;

[0028] Figure 6 This is a schematic diagram of the air inlet and outlet of the electrical control box according to one embodiment of this application;

[0029] Figure 7 This is a cross-sectional view of the electrical control box according to one embodiment of this application. Figure 1 ;

[0030] Figure 8 This is a cross-sectional view of the electrical control box according to one embodiment of this application. Figure 2 ;

[0031] Figure 9 This is a schematic diagram of the structure of a box assembly according to an embodiment of this application. Figure 1 ;

[0032] Figure 10 This is a schematic diagram of the structure of a box assembly according to an embodiment of this application. Figure 2 ;

[0033] Figure 11 This is an exploded view of an electronic control component according to an embodiment of this application;

[0034] Figure 12 This is a schematic diagram of the structure of an air conditioner according to one embodiment of this application.

[0035] Figure label:

[0036] Air conditioner outdoor unit 100; casing assembly 20;

[0037] 10 electrical control boxes;

[0038] Electronic control component 1; PCB board 11; first area 101; second area 102; heat sink 12; heat dissipation substrate 121; heat sink 122; first device 13; power device 14; heat sink bracket 15;

[0039] Box assembly 2; First air duct 201; First air inlet 2011; First air outlet 2012; Second air duct 202; Second air inlet 2021; Second air outlet 2022; First enclosure 21; Second enclosure 22; Third enclosure 23; Fourth enclosure 24; First clearance opening 241; Fifth enclosure 25; Sixth enclosure 26; Seventh enclosure 27; Support plate segment 28; Mounting base 29. Detailed Implementation

[0040] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0041] The following is for reference. Figures 1-11 The present application describes an electrical control box 10, which is used in an outdoor unit of an air conditioner. The electrical control box 10 is disposed within the housing of the outdoor unit to control and regulate the operating status of equipment (such as compressors and fans) within the outdoor unit.

[0042] Combination Figure 1 and Figure 3As shown, the electrical control box 10 in this application includes an electrical control component 1 and a box component 2. The box component 2 forms a first air duct 201 and a second air duct 202 arranged side by side along a first direction and having independent air inlets and outlets. That is, 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. In other words, the air inlet and outlet modes of the first air duct 201 and the second air duct 202 are independent of each other and will not interfere with each other, so that the airflow in the first air duct 201 will not interfere with the airflow in the second air duct 202.

[0043] Reference Figure 3 As shown, the electronic control component 1 includes a heat sink 12, a first device 13, and a PCB board 11. The PCB board 11 is the mounting carrier for the first device 13 and the heat sink 12. The first device 13 and the heat sink 12 can be connected and cooperated with the PCB board 11 respectively.

[0044] The PCB board 11 has a first region 101 and a second region 102 arranged along a first direction, and the heat sink 12 is arranged in the first region 101 and the first device 13 is arranged in the second region 102, so as to divide the devices in the electronic control assembly 1 into zones.

[0045] It should be noted that "first device 13" refers to a class of electrical devices, including but not limited to capacitive devices, inductive devices, and other electrical devices. Also, if... Figure 3 As shown, when the PCB board 11 is arranged vertically in the electrical control box 10, the "first direction" is the height direction of the PCB board 11.

[0046] Combination Figure 2 and Figure 3 As shown, the first region 101 is arranged correspondingly to the first air duct 201, and the second region 102 is arranged correspondingly to the second air duct 202. Thus, the airflow flowing through the first air duct 201 can cool the heat sink 12 arranged in the first region 101 of the PCB board 11, and the airflow flowing through the second air duct 202 can cool the first device 13 arranged in the second region 102 of the PCB board 11. In other words, the air flowing through the first device 13 and the air flowing through the heat sink 12 are separated, so that the heat sink 12 and the first device 13 can be cooled by air respectively, which can improve the heat dissipation effect at the heat sink 12 and improve the overall reliability of the electrical control box 10.

[0047] It should be noted that currently, in the outdoor unit 100 of the air conditioner, the electrical control box 10 is located within the casing of the outdoor unit 100 and is cooled by air cooling. In related technologies, the heat sink 12 and other components (such as inductive and capacitive components) in the electrical control box 10 are arranged in the same air duct cavity. Since the components also generate heat, the temperature of the air flowing through the components increases, which will affect the heat dissipation effect of the heat sink 12 when it flows further through it. Similarly, the temperature of the air flowing through the heat sink 12 will also increase, and the cooling effect on other components will also deteriorate when it flows further through them.

[0048] In this application, two independent first air ducts 201 and second air ducts 202 are formed at the box assembly 2, so as to achieve air cooling of the heat sink 12 and the first device 13 through the first air ducts 201 and the second air ducts 202 respectively, thereby improving the heat dissipation effect of the heat sink 12 and the first device 13.

[0049] It is understandable that within the first air duct 201, air flowing through the heat sink 12 is prevented from flowing through the first device 13; and within the second air duct 202, air flowing through the first device 13 is prevented from flowing through the heat sink 12. In other words, by zoning the components on the PCB board 11 and cooperating with the first air duct 201 and the second air duct 202 at the box assembly 2, the airflow used for heat dissipation of the electrical control box 10 can be diverted to dissipate heat from the heat sink 12 and the first device 13 respectively, thereby improving the air cooling effect on the heat sink 12 and the first device 13.

[0050] It should be noted that the heat sink 12 operates at a high temperature. Airflow is possible through the heat sink 12, and convection occurs around it, making it easy for airborne particles (such as dust) to adhere to it. If the heat sink 12 and the first device 13 are located in the same space, the dust and other contaminants adhering to the heat sink 12 may accumulate on the first device 13 due to airflow, potentially causing short circuits, breakdowns, and other problems, thus affecting the reliability of the control box 10.

[0051] Furthermore, by arranging the heat sink 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 dust and other pollutants attached to the heat sink 12 from being blown toward the first device 13 by the airflow, thereby preventing dust and other pollutants from accumulating on the first device 13 and causing short circuits, breakdowns and other problems, so as to further improve the stability and reliability of the operation of the electrical control box 10.

[0052] Combination Figure 9 and Figure 10As shown, in some embodiments of this application, the box assembly 2 includes a first enclosure 21, a second enclosure 22, a third enclosure 23, and a fourth enclosure 24. The first enclosure 21 and the third enclosure 23 are arranged opposite to each other in a first direction, and the second enclosure 22 and the fourth enclosure 24 are arranged opposite to each other in a second direction. The first enclosure 21, the second enclosure 22, the third enclosure 23, and the fourth enclosure 24 surround each other to form a first air duct 201 and define a first air inlet 2011 and a first air outlet 2012.

[0053] The second enclosure 22 and the fourth enclosure 24 are respectively connected between the first enclosure 21 and the third enclosure 23, so that the first enclosure 21, the second enclosure 22, the third enclosure 23 and the fourth enclosure 24 together form the first air duct 201, making the structure of the box assembly 2 at the first air duct 201 regular (roughly rectangular), which is convenient for installation and cooperation with the electrical control assembly 1.

[0054] Combination Figure 2 and Figure 3 As shown, PCB board 11 is arranged on one side adjacent to the fourth enclosure 24, and the second enclosure 22 is arranged opposite to at least part of PCB board 11 in the second direction. Heat sink 12 is arranged between the second enclosure 22 and PCB board 11. Air in the first air duct 201 can exchange heat with heat sink 12 as it flows through it, so as to carry the heat at heat sink 12 to the outside of the box assembly 2, thereby achieving heat dissipation and cooling of heat sink 12.

[0055] Combination Figure 1 and Figure 4 As shown, in a further embodiment of this application, the fourth enclosure 24 is provided on the side of the first air duct 201 near the PCB board 11, and the fourth enclosure 24 forms a first clearance opening 241 to avoid the PCB board 11, so that the electronic control component 1 is arranged at the first clearance opening 241 formed at the fourth enclosure 24, which facilitates the installation and cooperation of the electronic control component 1 and the box assembly 2.

[0056] Understandably, the box assembly 2 of this application has a first clearance opening 241 at the fourth enclosure 24. The first clearance opening 241 can allow the radiator 12 to pass through the first clearance opening 241 and extend into the first air duct 201, thereby improving the heat dissipation and cooling effect of the air in the first air duct 201 on the radiator 12. In other words, the radiator 12 is arranged in the airflow path in the first air duct 201, and the air flowing through the first air duct 201 can fully contact the radiator 12, improving the heat dissipation effect at the radiator 12.

[0057] Combination Figure 1 and Figure 4As shown, the PCB board 11 is disposed on the side of the fourth enclosure 24 opposite to the second enclosure 22, and the heat sink 12 is disposed on the surface of the PCB board 11 opposite to the second enclosure 22 (i.e., the first region 101). When the electronic control assembly 1 and the box assembly 2 are installed and mated, the heat sink 12 extends into the first air duct 201 from the first clearance opening 241, and the PCB board 11 can block the first clearance opening 241 to prevent the airflow in the first air duct 201 from flowing out from the first clearance opening 241, thereby ensuring the airflow effect in the first air duct 201.

[0058] Combination Figure 1 , Figure 2 and Figure 6 As shown, in some embodiments of this application, the first air inlet 2011 and the first air outlet 2012 of the first air duct 201 are formed on both sides of the box assembly 2 in the third direction, such that the first air inlet 2011 and the first air outlet 2012 are located on both sides of the radiator 12 in the third direction. The air that enters the first air duct 201 through the first air inlet 2011 flows through the radiator 12 and is discharged from the first air outlet 2012, transferring the heat at the radiator 12 to the outside of the box assembly 2.

[0059] like Figure 11 As shown, in some embodiments of this application, the electronic control component 1 further includes a power device 14, which is disposed in the first region 101 and can exchange heat with the heat sink 12. The power device 14 is arranged on the side of the heat sink 12 away from the second enclosure 22.

[0060] The aforementioned "power device 14" may include a rectifier bridge, semiconductor power devices in a PFC (Power Factor Correction) circuit, and an inverter module, etc.

[0061] It should be noted that the power device 14 is arranged on the PCB board 11 and located in the first region 101. The heat sink 12 is also arranged in the first region 101, and the heat sink 12 is arranged on the side of the power device 14 away from the PCB board 11. The heat sink 12 can exchange heat with the power device 14 and shield the power device 14 to prevent the power device 14 from being exposed. Thus, the heat at the power device 14 can be transferred outward through the heat sink 12 to meet the heat dissipation requirements of the power device 14, and the power device 14 can be prevented from being exposed in the first air duct 201, thus protecting the power device 14 and effectively preventing the power device 14 from being contaminated by dust and other pollutants, thereby improving the stability and reliability of the operation of the control box 10.

[0062] like Figure 11As shown, in some embodiments of this application, the heat sink 12 includes a heat sink substrate 121 and a plurality of heat sinks 122. The heat sink substrate 121 is connected to the PCB board 11, and the plurality of heat sinks 122 are disposed on the side of the heat sink substrate 121 adjacent to the second enclosure 22 (i.e., the side of the heat sink substrate 121 facing away from the PCB board 11). The heat of the power device 14 can be transferred to the heat sinks 122 through the heat sink substrate 121. When the air in the first air duct 201 flows through the heat sinks 122, it can transfer the heat at the heat sinks 122 to the outside of the first air duct 201, thereby achieving cooling of the power device 14.

[0063] Further integration Figure 2 and Figure 3 As shown, multiple heat sinks 122 are arranged at intervals along the first direction, and a heat dissipation channel is formed between any two adjacent heat sinks 122. The extension direction of the heat dissipation channel is the same as the extension direction of the first air duct 201, thereby reducing the resistance encountered by the air in the first air duct 201 when it flows through the heat sinks 122, so as to improve the air circulation effect in the first air duct 201.

[0064] It should be noted that "the extension direction of the heat dissipation channel" refers to the general direction of airflow in the heat dissipation channel. For example, the air inlet side and air outlet side of the heat dissipation channel are located on both sides of the radiator 12 in a third direction, so as to arrange the radiator 12 and the first air duct 201 in a corresponding manner.

[0065] like Figure 11 As shown, in some embodiments of this application, the heat sink 122 extends in a wave-like manner in the second direction, thereby increasing the contact area between the heat sink 122 and the air in the first air duct 201, which in turn improves the heat dissipation efficiency of the heat sink 12 and enhances the heat dissipation and cooling effect of the heat sink 12 on the power device 14.

[0066] Reference Figure 11 As shown, in some embodiments of this application, the heat sink 12 further includes a heat sink bracket 15, which is disposed on the PCB board 11 and is used to connect and cooperate with the heat sink substrate 121. The heat sink bracket 15 serves as a mounting carrier for the heat sink 12, supporting the heat sink 12 in a second direction and fixing the heat sink 12 to the PCB board 11.

[0067] During the assembly process of the heat sink 12, the heat sink bracket 15 and the PCB board 11, the heat sink base plate 121 can be connected to the heat sink bracket first to fix the heat sink 12 and the heat sink bracket 15. Then, the heat sink 12 and the heat sink bracket 15 can be assembled and connected together on the PCB board 11 to achieve the connection and fixation of the heat sink 12 and the PCB board 11.

[0068] The heat sink bracket 15 is arranged on the side of the PCB board 11 opposite to the second enclosure 22, and the heat sink bracket 15 can surround and shield the power device 14 in the circumferential direction, that is, prevent the air intake side of the first air duct 201 from blowing directly onto the power device 14, reducing the risk of dust and other pollutants adhering to the power device 14.

[0069] It is understood that the heat sink bracket 15 is constructed as a direct structure that runs through the second direction, so as to meet the connection and cooperation requirements with the PCB board 11 and the heat sink 12 while avoiding the power device 14, so as to facilitate the cooperation between the heat sink substrate 121 and the power device 14. Preferably, the power device 14 is fitted to the heat sink substrate 121 to improve the heat exchange efficiency between the power device 14 and the heat sink 12.

[0070] like Figure 2 As shown, in some embodiments of this application, the box 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 are arranged opposite to each other and spaced apart in a first direction. The seventh enclosure 27 is connected between the fifth enclosure 25 and the sixth enclosure 26, and the seventh enclosure 27 is arranged opposite to the PCB board 11 in a second direction.

[0071] Further integration Figure 10 A second air duct 202, which opens to one side of the PCB board 11, is formed by the fifth enclosure 25, the sixth enclosure 26 and the seventh enclosure 27, and a second air inlet 2021 and a second air outlet 2022 are formed therein.

[0072] Combination Figure 2 , Figure 3 and Figure 10 As shown, when the PCB board 11 is installed and assembled with the box assembly 2, the PCB board 11 can block the open side of the second air duct 202 to limit the airflow path in the second air duct 202, so that the air flowing through the second air duct 202 can fully contact the first device 13 to achieve heat dissipation and cooling of the first device 13.

[0073] It is understood that the fifth enclosure 25, the sixth enclosure 26 and the seventh enclosure 27 can surround and form a second air duct 202 that opens to one side of the PCB board 11, so as to form an opening structure at the second air duct 202 suitable for avoiding 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 to the seventh enclosure 27).

[0074] like Figure 10As shown, in some embodiments of this application, the box assembly 2 further includes a support plate segment 28, which is connected between the fifth enclosure 25 and the sixth enclosure 26 to support the fifth enclosure 25 and the sixth enclosure 26 in a first direction, thereby improving the structural strength of the box assembly 2.

[0075] Combination Figure 3 and Figure 10 As shown, the support plate segment 28 is arranged on the air outlet side adjacent to the second air duct 202, and the support plate segment 28, together with the fifth enclosure plate 25, the sixth enclosure plate 26, and the seventh enclosure plate 27, can define the second air outlet 2022 of the second air duct 202 to improve the structural strength of the box assembly 2 at the second air outlet 2022. At the same time, the support plate segment 28 can also avoid the first device 13 arranged on the PCB board 11 to effectively prevent interference between the support plate segment 28 and the first device 13, and facilitate the assembly of the electronic control component 1 and the box assembly 2.

[0076] Reference Figure 10 In some embodiments of this application, the first enclosure 21 and the fifth enclosure 25 are coplanar and integrally disposed, thereby saving the space occupied by the box assembly 2 in the first direction and making the layout of the electrical control assembly 1 in the electrical control box 10 compact.

[0077] It should be noted that the fifth enclosure 25 is arranged in the first direction on the side of the sixth enclosure 26 adjacent to the first air duct 201. That is to say, when the fifth enclosure 25 and the first enclosure 21 are integrated and arranged, in the first direction, the sixth enclosure 26, the fifth enclosure 25 (which is also the first enclosure 21), and the third enclosure 23 are arranged alternately.

[0078] It is understood that the first enclosure 21 and the fifth enclosure 25 in the box assembly 2 are arranged coplanarly, thereby constructing the first enclosure 21 and the fifth enclosure 25 as a single partition structure. The partition structure separates the first air duct 201 and the second air duct 202, that is, the two sides of the partition structure in the first direction face the first air duct 201 and the second air duct 202 respectively. The above-mentioned arrangement of integrating the first enclosure 21 and the fifth enclosure 25 can reduce the number of board structures in the first air duct 201 and the second air duct 202 in the box assembly 2, and make the first air duct 201 and the second air duct 202 close to each other in the first direction, so that the components on the PCB board 11 (such as: heat sink 12, first device 13, power device 14, etc.) are arranged compactly, improving the space utilization of the electrical control box 10.

[0079] like Figure 2As shown, in some embodiments of this application, the first air outlet 2012 and the second air outlet 2022 are located on the same side of the box assembly 2 in a third direction, thereby ensuring the air outlet effect at the first air duct 201 and the second air duct 202, preventing the air discharged through the first air outlet 2012 from entering the second air duct 202 and the air discharged through the second air outlet 2022 from entering the first air duct 201, and improving the heat dissipation and cooling effect of the device at the first air duct 201 and the second air duct 202.

[0080] It should be noted that the electrical control box 10 is used in the outdoor unit 100 of the air conditioner. Arranging the first air outlet 2012 and the second air outlet 2022 on the same side of the electrical control box 10 helps to arrange the electrical control box 10 in the outdoor unit 100 of the air conditioner, so as to connect the first air outlet 2012 and the second air outlet 2022 with the same exhaust space (e.g., the fan cavity side) in the outdoor unit 100 of the air conditioner.

[0081] like Figure 3 As shown, in some embodiments of this application, the box assembly 2 further includes a mounting base for mounting the electronic control assembly 1, and the mounting base is located on the side of the PCB board 11 away from the first air duct 201.

[0082] The mounting base 29 is used to connect and cooperate with the surrounding structure (such as the first surrounding plate 21, the second surrounding plate 22, the third surrounding plate 23, the fourth surrounding plate 24, the fifth surrounding plate 25, the sixth surrounding plate 26 and the seventh surrounding plate 27 mentioned above) in the box assembly 2, and to fix the electronic control component 1 on the box assembly 2 to prevent the electronic control component 1 from shaking relative to the box assembly 2 and improve the reliability of the cooperation between the electronic control component 1 and the box assembly 2.

[0083] It is understandable that during the assembly of the electrical control box 10, the electrical control component 1 can be assembled on the mounting base 29 first, and then the multiple enclosure structures in the box component 2 can be connected and matched with the mounting base 29 (such as positioning matching, snap-fit ​​matching, fixed connection, etc.). Then, the electrical control component 1 and the mounting base 29 can be assembled and fixed together on the multiple enclosure structures, thereby realizing the assembly of the electrical control box 10.

[0084] The main connection and cooperation between the mounting base 29 and the electronic control component 1 is achieved through the cooperation between the mounting base 29 and the PCB board 11. For example, when the mounting base 29 is provided with a sliding groove, the PCB board 11 can be arranged on the mounting base 29 by sliding in; when the mounting base 29 is provided with a snap-fit, the PCB board 11 can be fixed on the mounting base 29 by snap-fitting with it. Therefore, the specific assembly method of the mounting base 29 and the PCB board 11 is not limited here.

[0085] Meanwhile, the connection and engagement method between the mounting base 29 and the enclosure structure in the box assembly 2 is not specifically limited. It can be achieved through snap-fit ​​engagement or threaded connection, etc., as long as it can satisfy the fixed engagement between the mounting base 29 and the enclosure structure.

[0086] It should be noted that the assembly method of the electrical control box 10 is not limited to this. It can also be designed according to the assembly requirements of the electrical control box 10. For example, the electrical control component 1 (i.e., PCB board 11 and the components arranged on PCB board 11) can be matched with multiple enclosure structures in the box assembly 2 to arrange the first component 13 and the heat sink 12 in the corresponding air duct structure. At this time, the position of the electrical control component 1 and the multiple enclosure structures is relatively fixed. Then, by matching the mounting base 29 with the multiple enclosure structures, the electrical control component 1 can be fixed on the box assembly 2 to realize the assembly of the electrical control component 1.

[0087] In some embodiments of this application, the first device 13 includes at least one of an inductive device and a capacitive device. It is understood that the first device 13 may include, but is not limited to, the inductive and capacitive devices described above, and may also include functional devices that generate less heat when the control box 10 is in operation, without specific limitations here.

[0088] In this application, by arranging the first device 13, which generates less heat during operation, within the second air duct 202, the first device 13 can be cooled by the air flowing through the second air duct 202. (Refer to...) Figure 1 As shown, when the electronic control component 1 is assembled on the box assembly 2, at least a portion of the first device 13 is exposed on the outside of the box assembly 2, that is, a portion of the first device 13 is arranged on the outside of the second air duct 202.

[0089] It should be noted that the first device 13, located on the outer side of the second air duct 202, is positioned near the air inlet area of ​​the second air duct 202. This allows air from outside the housing assembly 2 to flow into the second air duct 202, passing through the first device 13 to dissipate heat and cool the first device 13 located outside the second air duct 202. The number of first devices 13 can be multiple. The phrase "at least some of the first devices 13" can include at least one of multiple first devices 13, or a portion of a single first device 13.

[0090] In summary, the electronic control box 10 according to the embodiments of this application has at least the following advantages:

[0091] (1) By forming two independent air ducts in the box assembly 2, the heat sink 12 and the power device 14 that cooperates with the heat sink 12 for heat exchange are arranged in the same air duct (i.e., the first air duct 201), and the first device 13 is arranged in another air duct, so that the airflow in the box assembly 2 can flow separately. That is, the air flowing through the heat sink 12 will not flow through the first device 13 in the second air duct 202, and the air flowing through the first device 13 will not flow through the heat sink 12 in the first air duct 201. This can improve the heat dissipation efficiency of the electrical control box 10 and effectively prevent dust from accumulating on the device and causing short circuits, breakdowns and other temperature problems, thereby improving the reliability of the electrical control box 10.

[0092] (2) The components in the electrical control box 10 are arranged in a compact manner, which can save space while fully meeting the heat dissipation requirements of the devices and improve the space utilization rate of the electrical control box 10.

[0093] According to the embodiments of this application, the outdoor unit 100 of the air conditioner includes the aforementioned electrical control box 10. The electrical control box 10 has high heat dissipation efficiency and good stability and reliability during operation.

[0094] like Figure 12 As shown, in some embodiments of this application, the outdoor unit 100 of the air conditioner includes a housing assembly 20, and an electrical control box 10 is arranged inside the housing assembly 20 so as to deliver air to the electrical control box 10 by means of air flowing into the housing assembly 20, thereby realizing the heat dissipation function of the electrical control box 10.

[0095] 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 control box 10 are connected to the compressor cavity of the housing assembly 20. Air in the compressor cavity can flow into the first air duct 201 and the second air duct 202 respectively. The first air outlet 2012 of the first air duct 201 and the second air outlet 2022 of the second air duct 202 are connected to the fan cavity respectively. By generating negative pressure on the fan cavity side through the operation of the fan, air from the compressor cavity side is drawn into the first air duct 201 and the second air duct 202, thereby meeting the heat dissipation requirements of the electronic control devices in the control box 10.

[0096] It should be noted that the connection and cooperation method between the electrical control box 10 and the shell assembly 20 is not specifically limited here, as long as it can meet the air intake and exhaust requirements of the electrical control box 10.

[0097] According to an embodiment of this application, the air conditioner includes the outdoor unit 100 described above.

[0098] The advantages of air conditioners and outdoor units compared to existing technologies are the same, and will not be repeated here.

[0099] In the description of this 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., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0100] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0101] In the description of this application, "multiple" means two or more.

[0102] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0103] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0104] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0105] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An electrical control box, characterized in that, The electrical control box is used for the outdoor unit of the air conditioner, and the electrical control box includes: An electronic control component, comprising a heat sink, a first device, and a PCB board, wherein the heat sink is arranged in a first region of the PCB board, the first device is arranged in a second region of the PCB board, and the first region and the second region are arranged along a first direction; The box assembly has a first air duct and a second air duct arranged side by side along the first direction and having independent air inlets and outlets respectively. The first air duct covers at least a portion of the first region and the heat sink is disposed within the first air duct. The second air duct covers at least a portion of the second region and at least a portion of the first device is disposed within the second air duct.

2. The electrical control box according to claim 1, characterized in that, The box assembly includes: A first enclosure panel and a third enclosure panel are disposed opposite to each other in the first direction; The second and fourth enclosures are arranged opposite each other in a second direction. The first, second, third, and fourth enclosures surround each other to form the first air duct and define the first air inlet and the first air outlet.

3. The electrical control box according to claim 2, characterized in that, The fourth enclosure is located on the side of the first air duct adjacent to the PCB board, and the fourth enclosure forms a first clearance opening opposite to the PCB board in the second direction, and the heat sink is adapted to extend into the first air duct through the first clearance opening.

4. The electrical control box according to claim 3, characterized in that, The electronic control assembly also includes a power device located in the first region, which can exchange heat with the heat sink and is located on the side of the heat sink away from the second enclosure.

5. The electrical control box according to claim 3, characterized in that, The heat sink includes: A heat dissipation substrate, which is connected to the PCB board; Multiple heat sinks are disposed on the side of the heat dissipation substrate adjacent to the second enclosure. The multiple heat sinks are arranged at intervals along the first direction, and a heat dissipation channel is formed between any two adjacent heat sinks. The extension direction of the heat dissipation channel is the same as the extension direction of the first air duct.

6. The electrical control box according to claim 5, characterized in that, The electrical control box also includes a heat sink bracket, which is mounted on the PCB board and used to connect and cooperate with the heat sink substrate.

7. The electrical control box according to claim 2, characterized in that, The box assembly includes: The fifth and sixth enclosure panels are arranged opposite to each other and spaced apart in the first direction; A seventh enclosure plate is connected between the fifth enclosure plate and the sixth enclosure plate, and the seventh enclosure plate is disposed opposite to the PCB board in the second direction.

8. The electrical control box according to claim 7, characterized in that, The fifth enclosure is located on the side of the sixth enclosure adjacent to the first air duct, and the first enclosure and the fifth enclosure are coplanar and integrally formed.

9. The electrical control box according to claim 7, characterized in that, The first air outlet and the second air outlet of the second air duct are located on the same side of the box assembly in a third direction.

10. The electrical control box according to claim 2, characterized in that, The box assembly also includes a mounting base for connecting and cooperating with the electronic control component, and the mounting base is located on the side of the PCB board away from the first air duct.

11. The electrical control box according to claim 1, characterized in that, The first device includes at least one of an inductive device and a capacitive device.

12. An outdoor unit for an air conditioner, characterized in that, Includes the electrical control box according to any one of claims 1-11.

13. An air conditioner, characterized in that, Includes the outdoor unit of the air conditioner as described in claim 12.

Images