Electric control box, air conditioner outdoor unit and air conditioner

Abstract

The utility model 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 a PCB and an electric device, and the electric device is installed on the PCB; the box assembly is provided with a first air duct and a second air duct which are arranged in the vertical direction and open towards one side of the PCB, the first air duct and the second air duct are independently arranged, the first air duct is arranged on the upper portion of the second air duct, and the box assembly is provided with a water guide surface at the inner bottom wall of the second air duct. And the water guide surface is used for guiding water in the second air duct to the outer side of the box assembly. Therefore, heat dissipation and cooling of the electric control box are achieved in an air cooling mode, the water guide face is arranged at the bottom of the second air channel, pollutants such as water in the second air channel can be guided out of the box assembly through the water guide face, and potential safety hazards of the electric control box due to the fact that the pollutants such as water are retained in the electric control box are avoided.

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] In related technologies, air conditioner outdoor units are usually used outdoors, resulting in a poor working environment for the air conditioner outdoor unit. Pollutants in the environment where the air conditioner outdoor unit is located (such as rainwater, dust, etc.) can enter the electrical control box through the outer casing of the air conditioner outdoor unit. If the electrical control box is contaminated, it will be at risk of being damaged. Utility Model Content

[0003] This application aims to at least solve one of the technical problems existing in the prior art. To this end, one objective of this application is to provide an electrical control box with good protection performance.

[0004] This application also proposes an outdoor unit for an air conditioner.

[0005] This application also proposes an air conditioner.

[0006] 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: a PCB board and electrical components, the electrical components being mounted on the PCB board; and a box assembly, the box assembly having a first air duct and a second air duct arranged vertically and open to one side of the PCB board, the first air duct and the second air duct being independently arranged, the first air duct being located above the second air duct, and the box assembly having a water guiding surface at the inner bottom wall of the second air duct, the water guiding surface being used to guide water in the second air duct to the outside of the box assembly.

[0007] In this application, the electrical control box has a first air duct and a second air duct arranged vertically to achieve heat dissipation and cooling of the electrical control box by air cooling. A water guide surface is provided at the bottom of the second air duct so that water and other contaminants in the second air duct can be discharged to the outside of the electrical control box components, so as to avoid water and other contaminants remaining in the electrical control box and causing safety hazards to the electrical control box.

[0008] 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 the vertical direction, and the water guiding surface being formed on the third enclosure; a second enclosure and a fourth enclosure, the second enclosure and the fourth enclosure being disposed opposite to each other and spaced apart, the second enclosure and the fourth enclosure being respectively connected between the first enclosure and the third enclosure, and the first enclosure, the second enclosure, the third enclosure and the fourth enclosure surrounding each other to form a second air duct.

[0009] According to some embodiments of this application, the third enclosure includes a first plate segment and a second plate segment. The first plate segment extends from the second air inlet of the second air duct to the second air outlet side of the second air duct, and the second plate segment extends from the second air outlet to the second air inlet side and is connected to the first plate segment.

[0010] According to some embodiments of this application, the first plate segment extends downward at an angle from the end connected to the second plate segment toward the second air inlet side; and / or, the second plate segment extends downward at an angle from the end connected to the first plate segment toward the second air outlet side.

[0011] According to some embodiments of this application, the third enclosure is provided with a drain outlet, which is used to connect the second air duct to the outside of the box assembly.

[0012] According to some embodiments of this application, the second enclosure has an opening opposite to one side of the fourth enclosure, and the lower edge of the opening is spaced apart from the third enclosure in the vertical direction.

[0013] According to some embodiments of this application, the box assembly further includes a baffle connected to the second enclosure and used to cover the opening.

[0014] According to some embodiments of this application, the distance between the lower edge of the opening and the third enclosure is L, and satisfies the relationship: 3mm≤L≤10mm.

[0015] According to some embodiments of this application, the fourth enclosure has a first clearance area, which is disposed opposite to the PCB board, and the first enclosure, the second enclosure, the third enclosure, and the fourth enclosure are integrally disposed.

[0016] According to some embodiments of this application, the fourth enclosure is provided with a first insertion slot that opens to one side of the second enclosure, the first insertion slot being used for insertion and engagement with the first enclosure; and / or, the fourth enclosure is provided with a second insertion slot that opens to one side of the second enclosure, the second insertion slot being used for insertion and engagement with the third enclosure.

[0017] An outdoor unit for an air conditioner according to a second aspect of this application includes the aforementioned electrical control box.

[0018] An air conditioner according to a third aspect of this application includes the above-described outdoor unit.

[0019] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. Attached Figure Description

[0020] 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:

[0021] Figure 1 This is a schematic diagram of the structure of an air conditioner outdoor unit according to an embodiment of this application. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the structure of an air conditioner outdoor unit according to an embodiment of this application. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the structure of an air conditioner outdoor unit according to an embodiment of this application. Figure 2 ;

[0024] Figure 4 This is an exploded view of an air conditioner outdoor unit according to an embodiment of this application;

[0025] Figure 5 This is a schematic diagram of the structure of the electrical control box according to an embodiment of this application. Figure 1 ;

[0026] Figure 6 This is a schematic diagram of the structure of the electrical control box according to an embodiment of this application. Figure 2 ;

[0027] Figure 7 This is a front view of the electrical control box according to an embodiment of this application;

[0028] Figure 8 yes Figure 7 A cross-sectional view of the centerline AA;

[0029] Figure 9 yes Figure 7 Cross-sectional view of centerline BB;

[0030] Figure 10 yes Figure 7 A cross-sectional view of the center line CC;

[0031] Figure 11 yes Figure 7 Cross-sectional view of centerline DD;

[0032] Figure 12 This is an exploded view of the electrical control box according to one embodiment of this application;

[0033] Figure 13 This is a schematic diagram illustrating the interaction of a PCB board, electrical components, and a heat sink according to an embodiment of this application;

[0034] Figure 14 This is a schematic diagram of the structure of a box assembly according to an embodiment of this application. Figure 1 ;

[0035] Figure 15 This is a schematic diagram of the structure of a box assembly according to an embodiment of this application. Figure 2 ;

[0036] Figure 16 This is a schematic diagram of the structure of a box assembly according to an embodiment of this application. Figure 3 ;

[0037] Figure 17 This is a schematic diagram of the structure of a heat sink according to an embodiment of this application. Figure 1 ;

[0038] Figure 18 This is a schematic diagram of the structure of a heat sink according to an embodiment of this application. Figure 2 ;

[0039] Figure 19 This is a schematic diagram of the structure of the partition plate according to one embodiment of this application.

[0040] Figure label:

[0041] Air conditioner outdoor unit 100;

[0042] Electrical control box 10; First air duct 101; First air inlet 1011; First air outlet 1012; Second air duct 102; Second air inlet 1021; Second air outlet 1022;

[0043] PCB board 11; First area 111; Second area 112; Electrical component 12; First component 121; Second component 122; Heat sink 13; Heat dissipation substrate 131; Heat sink 132; Horizontal water channel 133; Vertical water channel 134

[0044] Box assembly 2; First enclosure 21; Second enclosure 22; Third enclosure 23; Water guide surface 231; Drain outlet 232; First plate segment 233; Second plate segment 234; Fourth enclosure 24; First insertion slot 241; Second insertion slot 242; Mounting frame 243; First clearance area 244; Fifth enclosure 25; Sixth enclosure 26; Seventh enclosure 27; Baffle 28; Support plate segment 29;

[0045] Casing assembly 30; fan cavity 301; compressor cavity 302; first side plate 312; panel 32; first panel 321; second panel 322; air inlet structure 33;

[0046] 40; 401; 41. Partition plate; 401; 41. Detailed Implementation

[0047] 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.

[0048] The following is for reference. Figures 1-19 The description of the electrical control box 10 according to an embodiment of the present application is as follows: the electrical control box 10 is applied in the outdoor unit 100 of the air conditioner to control the operating status of the equipment (such as: fan, compressor, etc.) in the outdoor unit 100 of the air conditioner.

[0049] The outdoor unit 100 of the air conditioner is usually used outdoors, which results in a poor working environment for the outdoor unit 100. Pollutants in the environment where the outdoor unit 100 is located (such as rainwater, dust, etc.) can enter the electrical control box 10 through the shell assembly 30 of the outdoor unit 100. If the electrical control box 10 is attached to pollutants, it will be at risk of being damaged.

[0050] According to an embodiment of this application, the electrical control box 10 includes a PCB board 11, electrical components 12, and a box assembly 2.

[0051] The electrical components 12 are mounted on the PCB board 11, and the PCB board 11 is arranged vertically in the box assembly 2.

[0052] Reference Figure 5 As shown, the box assembly 2 has a first air duct 101 and a second air duct 102 arranged vertically and open to one side of the PCB board 11, and the first air duct 101 and the second air duct 102 are arranged independently of each other.

[0053] In this assembly, the first air duct 101 and the second air duct 102 are also arranged vertically in the box assembly 2, and "arranged independently" means that the first air duct 101 and the second air duct 102 are not interconnected, that is, there is no crossflow between the first air duct 101 and the second air duct 102, which ensures the air circulation effect at the first air duct 101 and the second air duct 102. It can be understood that the first air duct 101 has a first air inlet 1011 and a first air outlet 1012, and the second air duct 102 has a second air inlet 1021 and a second air outlet 1022, and the air inlet and outlet actions of the first air duct 101 and the second air duct 102 are independent of each other.

[0054] Combination Figure 5 and Figure 16As shown, the PCB board 11 is arranged at the open portion of the first air duct 101 and the second air duct 102, and the PCB board 11 is provided with electrical components 12. The electrical components 12 can be arranged on the side surface of the PCB board 11 opposite to the first air duct 101 and the second air duct 102, so that the electrical components 12 can extend into the air ducts (i.e., the first air duct 101 and the second air duct 102 mentioned above) from the open side of the first air duct 101 and the second air duct 102 respectively, so as to dissipate heat and cool down the components arranged on the PCB board 11 by the air flowing through the first air duct 101 and the second air duct 102.

[0055] It should be noted that the first air duct 101 and the second air duct 102 are respectively provided with open positions for corresponding arrangement with the PCB board 11, which facilitates the electrical components 12 arranged on the PCB board 11 to extend into the first air duct 101 and the second air duct 102.

[0056] The electrical components 12 on the PCB board 11 include a first component 121 and a second component 122. The first component 121 is arranged in a first region 111 on the PCB board 11 corresponding to the first air duct 101, and the second component 122 is arranged in a second region 112 on the PCB board 11 corresponding to the second air duct 102. When the PCB board 11 is connected to the box assembly 2, the first component 121 can extend into the first air duct 101 through the open side, and the air flowing through the first air duct 101 can carry away the heat from the first component 121 to achieve heat dissipation and cooling. When the PCB board 11 is connected to the box assembly 2, the second component 122 can extend into the second air duct 102 through the open side, and the air flowing through the second air duct 102 can carry away the heat from the second component 122 to achieve heat dissipation and cooling.

[0057] like Figure 5 As shown, the first air duct 101 is located above the second air duct 102. The box assembly 2 has a water guiding surface 231 on the inner bottom wall of the second air duct 102. The water guiding surface 231 is used to guide water in the second air duct 102 to the outside of the box assembly 2. When water or other contaminants enter the second air duct 102, the water can be discharged through the water guiding surface 231 to prevent water from stagnating in the second air duct 102. This avoids the devices arranged in the second air duct 102 from being in a humid environment and causing problems such as rusting and short circuits, thereby improving the safety and reliability of the electrical control box 10.

[0058] It should be noted that the above description of the orientation is based on the orientation of the control box 10 installed in the outdoor unit 100 of the air conditioner. That is, when the control box 10 is installed in the outdoor unit 100 of the air conditioner, the first air duct 101 is located above the second air duct 102.

[0059] In related technologies, the electrical control box 10 can achieve heat dissipation and cooling through air cooling. When the outdoor unit 100 of the air conditioner is running in inclement weather such as rain, rainwater in the air can enter the electrical control box 10 with the air and remain inside the electrical control box 10, which may cause short circuits and other faults in the electrical control box 10, posing a safety hazard.

[0060] In this application, the electrical control box 10 has a first air duct 101 and a second air duct 102 arranged vertically to achieve heat dissipation and cooling of the electrical control box 10 by air cooling. A water guide surface 231 is provided at the bottom of the second air duct 102. The water guide surface 231 can be used to discharge water and other contaminants from the second air duct 102 to the outside, so as to avoid water and other contaminants from being trapped in the electrical control box 10 and causing safety hazards to the electrical control box 10.

[0061] In some embodiments of this application, the electrical control box 10 further includes a heat sink 13, which is mounted on the PCB board 11 and can be used to exchange heat with the electrical components 12. This allows the electrical components 12 to transfer heat to the heat sink 13, and the heat sink 13 to transfer the heat outwards, thereby improving the heat dissipation efficiency of the electrical control box 10. It is understood that the heat sink 13 has good thermal conductivity and a large contact area with the air, thus improving the heat dissipation efficiency at the electrical control box 10.

[0062] Combination Figure 11 and Figure 12 As shown, the heat sink 13 is arranged in the second region 112 of the PCB board 11, and the heat sink 13 can be attached to the second device 122. The heat of the second device 122 can be transferred to the outside through the heat sink 13 to improve the heat dissipation efficiency of the second device 122.

[0063] It should be noted that "first device 121" refers to a type of device, that is, all electrical devices 12 arranged in the first area 111 of the PCB board 11 are collectively referred to as first device 121; "second device 122" also refers to a type of device, that is, all electrical devices 12 arranged in the second area 112 of the PCB board 11 are collectively referred to as second device 122. The specific types of "first device 121" and "second device 122" are not specifically limited here. For example, first device 121 may include capacitive devices, inductive devices, etc., and second device 122 may include power devices (such as bridge rectifiers, inverter modules, etc.).

[0064] It is understood that the second device 122 is used to cooperate with the heat sink 13 for heat exchange, so as to improve the heat dissipation effect at the second device 122 through the heat sink 13. Therefore, the second device 122 is preferably an electrical device 12 that generates a lot of heat when the control box 10 is in operation, such as a bridge rectifier or inverter module, so that the second device 122 can transfer heat to the heat sink 13, and exchange heat with the air flowing through the second air duct 102 through the heat sink 13 and transfer the heat to the outside of the control box 10, thereby improving the heat dissipation and cooling efficiency at the second device 122.

[0065] 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 each other in the vertical direction. The second enclosure 22 and the fourth enclosure 24 are respectively connected between the first enclosure 21 and the third enclosure 23. The second enclosure 22 and the fourth enclosure 24 are arranged opposite each other and spaced apart. The first enclosure 21, the second enclosure 22, the third enclosure 23, and the fourth enclosure 24 surround each other to form the second air duct 102 described above.

[0066] Therefore, by setting multiple enclosure structures (i.e. the first enclosure 21, the second enclosure 22, the third enclosure 23 and the fourth enclosure 24 mentioned above) to surround and define the second air duct 102, the structure of the box assembly 2 at the second air duct 102 is regular, which facilitates the installation and cooperation of the box assembly 2 with the electrical control assembly (including the PCB board 11 and the electrical components 12).

[0067] Reference Figure 16 As shown, the first enclosure 21 is positioned above the third enclosure 23, meaning that the upper surface of the third enclosure 23 (the side of the third enclosure 23 opposite to the first enclosure 21) is constructed as the inner bottom wall of the second air duct 102. In other words, the water guiding surface 231 is formed on the third enclosure 23. When water in the second air duct 102 falls onto the water guiding surface 231, the water guiding surface 231 can guide the flow direction of the water, so that the water in the second air duct 102 can be discharged out of the second air duct 102.

[0068] like Figure 16 As shown in a further embodiment of this application, the third enclosure 23 includes a first section 233 and a second section 234. The first section 233 extends from the second air inlet 1021 of the second air duct 102 to the second air outlet 1022 of the second air duct 102. The second section 234 extends from the second air outlet 1022 to the second air inlet 1021 and is connected to the first section 233. Thus, water located on the third enclosure 23 can be discharged to the outside of the second air duct 102 through the first section 233 and the second section 234, thereby improving the safety of the electrical control box 10.

[0069] The third enclosure 23 extends from the second air inlet 1021 side of the second air duct 102 to the second air outlet 1022 side, so as to guide the water accumulation at the third enclosure 23 by setting the first plate segment 233 and the second plate segment 234.

[0070] In some embodiments of this application, the first plate segment 233 extends downward at an angle from the end connected to the second plate segment 234 toward the second air inlet 1021, so as to guide water at the first plate segment 233 toward the second air inlet 1021; in other embodiments of this application, the second plate segment 234 extends downward at an angle from the end connected to the first plate segment 233 toward the second air outlet 1022, so as to guide water at the second plate segment 234 toward the second air outlet 1022.

[0071] Specifically, the first plate segment 233 can guide the water located on the first plate segment 233 to the side of the second air outlet 1022, so that the accumulated water can be discharged from the second air inlet 1021; the second plate segment 234 can guide the water located on the second plate segment 234 to the side of the second air outlet 1022, so that the accumulated water can be discharged from the second air outlet 1022.

[0072] Therefore, by designing the third enclosure 23 in segments, the travel distance for guiding water outwards at the third enclosure 23 can be shortened, facilitating the rapid drainage of accumulated water at the third enclosure 23. It is understandable that, taking the water guiding surface 231 as an example, which slopes downwards from the second air outlet 1022 side towards the second air inlet 1021 side, accumulated water near the second air outlet 1022 side needs to flow through the entire third enclosure 23 before it can be discharged from the second air inlet 1021 side. This increases the flow distance required for water drainage and affects the drainage efficiency at the third enclosure 23.

[0073] In this application, by setting the first plate segment 233 and the second plate segment 234, the water guiding surface 231 can be constructed as a "V"-shaped water guiding surface 231 with the opening facing downward, so as to guide the water at the third enclosure 23 to the air inlet side or air outlet side of the second air duct 102 through the water guiding surface 231, so as to facilitate the rapid discharge of the water accumulated at the third enclosure 23.

[0074] In some embodiments of this application, the water guiding surface 231 is inclined relative to the horizontal plane, and the angle between the water guiding surface 231 and the horizontal plane is in the range of 2°-8°, so as to ensure the guiding effect of the water guiding surface 231 on water.

[0075] like Figure 16As shown, in some embodiments of this application, the third enclosure 23 is provided with a drain port 232, which is used to connect the second air duct 102 with the outside of the box assembly 2, so that the water accumulated at the third enclosure 23 can be discharged through the drain port 232, and the water is prevented from accumulating at the third enclosure 23.

[0076] Reference Figure 16 The drain port 232 is provided through the third enclosure 23 along the thickness direction. Since the third enclosure 23 is located at the bottom of the box assembly 2, the water flowing to the drain port 232 can be discharged downward from the drain port 232 to protect the electrical control box 10 from water damage.

[0077] It should be noted that the drain outlet 232 at the third enclosure 23 is preferably located downstream of the water guiding surface 231 in the water guiding direction. (Refer to...) Figure 16 As shown, the second plate segment 234 has the function of guiding water to the side of the second air outlet 1022. The drain outlet 232 is located on the second plate segment 234 near the second air outlet 1022 so that the water discharged to the second air outlet 1022 can be discharged downward through the drain outlet 232.

[0078] In some embodiments of this application, the water guiding surface 231 is inclined downward from the second enclosure 22 toward the fourth enclosure 24, so that the water guiding surface 231 can direct water toward the fourth enclosure 24. Correspondingly, the drain outlet 232 is located on the third enclosure 23 near the fourth enclosure 24, so that water at the third enclosure 23 can be discharged downward from the drain outlet 232.

[0079] In some embodiments of this application, the water guiding surface 231 is inclined downward from the fourth enclosure 24 toward the second enclosure 22, so that the water guiding surface 231 can direct water toward the second enclosure 22. Correspondingly, the drain outlet 232 is located on the third enclosure 23 near the second enclosure 22, so that water at the third enclosure 23 can be discharged downward from the drain outlet 232.

[0080] like Figure 12 As shown, in some embodiments of this application, the second enclosure 22 is provided with an opening opposite to one side of the fourth enclosure 24, and the lower edge of the opening is spaced apart from the third enclosure 23 in the vertical direction, thereby ensuring the connection strength between the lower part of the second enclosure 22 where the opening is formed and the third enclosure 23.

[0081] Understandably, if the opening formed at the second panel 22 extends downward to the third panel 23, the connection strength between the second panel 22 and the third panel 23 at the opening will be weaker. At the same time, it can also reduce the processing and forming difficulty at the second panel 22.

[0082] In a further embodiment of this application, the box assembly 2 further includes a baffle 28 connected to the second enclosure 22. The baffle 28 is used to block the opening to prevent air in the second air duct 102 from flowing out of the opening and instead blowing onto the devices arranged in the second air duct 102, thus ensuring the airflow effect in the second air duct 102. Specifically, the baffle 28 at least covers the opening of the second enclosure 22 to fully block the opening and prevent air in the second air duct 102 from flowing out of the opening.

[0083] Therefore, by setting an opening structure at the second enclosure 22, the processing difficulty of the second enclosure 22 can be reduced, and the opening can be blocked by the baffle 28 to prevent air in the second air duct 102 from flowing out of the opening, thus ensuring the air circulation effect at the second air duct 102.

[0084] It should be noted that the baffle 28 and the second enclosure 22 can be connected and fixed by a snap-fit ​​mechanism, without the need for additional connecting parts. This satisfies the connection requirements between the baffle 28 and the second enclosure 22 while reducing the installation difficulty of assembling the baffle 28 onto the second enclosure 22.

[0085] Reference Figure 12 As shown, in some embodiments of this application, the distance between the lower edge of the opening and the third enclosure 23 is L, and satisfies the relationship: 3mm≤L≤10mm, thereby ensuring the connection strength between the second enclosure 22 and the third enclosure 23 below the opening position.

[0086] like Figure 16 As shown, in some embodiments of this application, the fourth enclosure 24 forms a first clearance area 244, the first clearance area 244 is disposed opposite to the PCB board 11, and the first enclosure 21, the second enclosure 22, the third enclosure 23 and the fourth enclosure 24 are integrally disposed.

[0087] Further integration Figure 5 and Figure 13 As shown, the first clearance area 244 is arranged corresponding to a portion of the PCB board 11 to form a clearance area open to one side of the PCB board 11 at the second air duct 102, so that devices arranged on the PCB board 11 and corresponding to the second air duct 102 (such as heat sink 13, etc.) can extend into the second air duct 102 through the first clearance area 244.

[0088] It is understandable that the PCB board 11 is arranged on the outside of the second air duct 102, and the PCB board 11 is arranged vertically on the open side of the second air duct 102 where the first clearance area 244 is provided. Thus, the PCB board 11 can block the first clearance area 244 and constrain and guide the airflow path in the second air duct 102, so that the air flowing through the PCB board 11 can further flow to the second air outlet 1022 side of the second air duct 102, ensuring the airflow effect in the second air duct 102.

[0089] When the first enclosure 21, the second enclosure 22, the third enclosure 23, and the fourth enclosure 24 are integrated, the box assembly 2 has a high degree of integration, which reduces the assembly steps and assembly difficulty. Simultaneously, it improves the structural consistency of the box assembly 2 at the second air duct 102, reduces product quality issues caused by processing differences, and ensures effective airflow within the second air duct 102.

[0090] like Figure 12 As shown, in some embodiments of this application, the fourth enclosure 24 is provided with a first insertion slot 241 that opens to the side of the second enclosure 22, and the first insertion slot 241 is used to insert and cooperate with the first enclosure 21 to connect the first enclosure 21 to the fourth enclosure 24 by means of insertion and cooperation.

[0091] like Figure 12 As shown, in some other embodiments of this application, the fourth enclosure 24 is provided with a second insertion slot 242 that opens to the side of the second enclosure 22, and the second insertion slot 242 is used to insert and cooperate with the third enclosure 23 so as to connect the third enclosure 23 to the fourth enclosure 24 by means of insertion and cooperation.

[0092] Reference Figure 12 The fourth enclosure panel is provided with both a first insertion slot 241 and a second insertion slot 242. This allows for a simple assembly method for the enclosure structure of the box assembly 2 defining the second air duct 102, where the first enclosure panel 21 engages with the first insertion slot 241, and the third enclosure panel 23 engages with the second insertion slot 242. Furthermore, the insertion engagement method facilitates mutual positioning between the enclosure panel structures, reducing the assembly difficulty.

[0093] like Figure 12As shown, both the first insertion slot 241 and the second insertion slot 242 are configured to open towards the second enclosure 22, and the opening direction of the first insertion slot 241 and the second insertion slot 242 is perpendicular to the air inlet and outlet direction of the second air duct 102. That is, the insertion installation direction between the first enclosure 21 and the fourth enclosure 24, and between the third enclosure 23 and the fourth enclosure 24, is perpendicular to the air supply direction within the second air duct 102, thereby ensuring effective airflow within the second air duct 102 and preventing air from flowing out through the gaps between the first enclosure 21 and the fourth enclosure 24, and between the third enclosure 23 and the fourth enclosure 24. It can be understood that the cross-section of the insertion slot is U-shaped, thus forming a labyrinth structure at the insertion points of the first enclosure 21 and the fourth enclosure 24, and between the third enclosure 23 and the fourth enclosure 24, preventing air from escaping from the second air duct 102 through these insertion points.

[0094] The first enclosure 21, the second enclosure 22, and the third enclosure 23 can be installed as a whole, and the first enclosure 21 and the third enclosure 23 can be inserted into the fourth enclosure 24 to achieve the assembly and fixation of multiple enclosure structures.

[0095] Reference Figure 12 and Figure 16 As shown, it should be noted that the fourth enclosure 24 may include multiple parts. In some embodiments, one part of the fourth enclosure 24 may be integrated with the first enclosure 21, the second enclosure 22 and the third enclosure 23 as one unit, while another part of the fourth enclosure 24 may be separately set with the first enclosure 21, the second enclosure 22 and the third enclosure 23 and connected and cooperated by means of snap-fit, plug-in or other methods. The arrangement of the fourth enclosure 24 can be adaptively adjusted according to the structure of the box assembly 2 and the assembly requirements of components such as the PCB board 11.

[0096] Combination Figure 5 and Figure 12 As shown, in some embodiments of this application, the fourth enclosure 24 is formed with a mounting frame 243, the shape of which is adapted to the shape of the PCB board 11, and mounting holes are used for mounting and engaging with the PCB board 11. During the assembly process of the electrical control box 10, the PCB board 11 can be connected and engaged with the mounting frame 243 first, and then the fourth enclosure 24 and the PCB board 11 can be mounted and engaged together on the side of the first enclosure 21, the second enclosure 22, and the third enclosure 23, thereby reducing the assembly difficulty of the PCB board 11.

[0097] The connection and engagement method between the PCB board 11 and the mounting frame 243 is not specifically limited here. For example, the PCB board 11 is embedded in the mounting frame 243 so that the mounting frame 243 and the PCB board 11 are positioned and engaged; or the PCB board 11 is snapped into the mounting frame 243 so that the PCB board 11 is snapped and fixed in the mounting frame 243.

[0098] Combination Figure 14 and Figure 16 As shown, in some embodiments of this application, the box assembly 2 further 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 the vertical direction. The seventh enclosure 27 is connected between the fifth enclosure 25 and the sixth enclosure 26 and is arranged opposite to the PCB board 11.

[0099] The first air duct 101, 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. When the PCB board 11 is installed and fitted with the box assembly 2, the PCB board 11 can block the open side of the first air duct 101 to limit the airflow path within the first air duct 101.

[0100] It is understood that the fifth enclosure 25, the sixth enclosure 26 and the seventh enclosure 27 can surround and form a first air duct 101 that opens to one side of the PCB board 11, and form an opening structure (defined by the fifth enclosure 25 and the sixth enclosure 26) at the first air duct 101 to allow the electrical components 12 arranged on the PCB board 11 to pass through, thereby facilitating the electrical components 12 on the PCB board 11 to extend into from the open side of the first air duct 101 (i.e. the side of the PCB board 11 opposite to the seventh enclosure 27).

[0101] like Figure 16 As shown, in some embodiments of this application, the box assembly 2 further includes a support plate segment 29, which is connected between the fifth enclosure 25 and the sixth enclosure 26 to provide vertical support for the fifth enclosure 25 and the sixth enclosure 26, thereby improving the structural strength of the box assembly 2.

[0102] Reference Figure 16As shown, the support plate segment 29 is disposed on the air outlet side adjacent to the first air duct 101, and the support plate segment 29, together with the fifth enclosure plate 25, the sixth enclosure plate 26, and the seventh enclosure plate 27, can jointly define the first air outlet 1012 of the first air duct 101 to improve the structural strength of the box assembly 2 at the first air outlet 1012. At the same time, the support plate segment 29 can also avoid the electrical components 12 arranged on the PCB board 11 to effectively prevent interference between the support plate segment 29 and the electrical components 12, and facilitate the assembly of the electronic control components (including the aforementioned PCB board 11 and electrical components 12) with the box assembly 2.

[0103] Reference Figure 16 In some embodiments of this application, the first enclosure 21 and the fifth enclosure 25 are coplanar and integrally arranged, thereby saving the space occupied by the box assembly 2 in the vertical direction and making the electrical components 12 arranged on the PCB board 11 in the electrical control box 10 compactly arranged.

[0104] It should be noted that the fifth enclosure 25 is arranged vertically on the side of the sixth enclosure 26 adjacent to the second air duct 102. That is, when the fifth enclosure 25 and the first enclosure 21 are integrated, the sixth enclosure 26, the fifth enclosure 25 (which is also the first enclosure 21), and the third enclosure 23 are arranged alternately in the vertical direction.

[0105] 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 101 and the second air duct 102, that is, the two sides of the partition structure in the vertical direction face the first air duct 101 and the second air duct 102 respectively. The above-mentioned arrangement of integrating the first enclosure 21 and the fifth enclosure 25 can reduce the number of enclosure structures required to form the first air duct 101 and the second air duct 102 in the box assembly 2, and make the first air duct 101 and the second air duct 102 arranged adjacent to each other in the vertical direction, so that the components on the PCB board 11 (such as heat sink 13, capacitive devices, power devices, etc.) are arranged compactly, improving the space utilization of the electrical control box 10.

[0106] In some embodiments of this application, the heat sink 13 includes a heat sink substrate 131 and a plurality of heat sinks 132. The heat sink substrate 131 is connected to the PCB board 11, and the plurality of heat sinks 132 are disposed on the side of the heat sink substrate 131 facing away from the PCB board 11. The heat from the power device can be transferred from the heat sink substrate 131 to the heat sinks 132. When the air in the second air duct 102 flows through the heat sinks 132, it can exchange heat with the heat sinks 132, thereby achieving cooling at the power device. Furthermore, by cooperating with the power device, the heat sink 13 can improve the heat dissipation and cooling efficiency at the power device.

[0107] Reference Figure 17 As shown, a horizontally extending water guide channel 133 is formed at the lower part of the radiator 13. The horizontal water guide channel 133 can drain water and other contaminants from the radiator 13 to prevent water and other contaminants from accumulating on the radiator 13; combined with Figure 11 and Figure 18 As shown, a vertically extending vertical water guide groove 134 is formed on the heat dissipation substrate 131 (the side surface opposite to the power device 122) of the heat sink 13. The vertical water guide groove 134 can guide water at the heat dissipation substrate 131 downwards to prevent water and other contaminants from remaining on the heat sink 13. Therefore, the height of the electrical device 12 can be arranged at a position not lower than the bottom of the heat sink 13, which can effectively prevent water dripping from the heat sink 13 from falling onto the electrical device 12.

[0108] The electronic control box 10 according to the embodiments of this application has at least the following advantages over the prior art:

[0109] (1) The electrical control box 10 has two air ducts arranged independently in the vertical direction, and a water guiding surface 231 is provided at the lower second air duct 102. The water guiding surface 231 can guide the water in the second air duct 102 to the outside of the second air duct 102 to improve the safety and reliability of the electrical control box 10.

[0110] (2) The water guide surface 231 is designed in two sections, so that water can be guided to the second air outlet 1022 or the second air inlet 1021 of the second air duct 102 respectively, which can improve the drainage effect at the second air duct 102.

[0111] (3) The box assembly 2 has a first air duct 101 and a second air duct 102. The first air duct 101 and the second air duct 102 can respectively dissipate heat and cool down the electrical components 12 arranged in different areas of the PCB board 11, which can improve the heat dissipation efficiency while meeting the heat dissipation requirements of the electrical components 12.

[0112] According to the embodiment of this application, the outdoor unit 100 of the air conditioner includes the above-mentioned electrical control box 10, which makes the outdoor unit 100 of the air conditioner have a good waterproof effect at the electrical control box 10, and can quickly drain the water in the second air duct 102 of the electrical control box 10, thereby improving the safety and reliability of the electrical control box 10 during operation.

[0113] In some embodiments of this application, the outdoor unit 100 of the air conditioner includes a housing assembly 30, which has a cavity. A partition 40 is provided inside the cavity, which separates the cavity and forms a fan cavity 301 and a compressor cavity 302 arranged in a horizontal direction. The fan cavity 301 can be used to house equipment such as a fan and a heat exchanger, so that the air in the fan cavity 301 is driven by the fan to achieve air-cooled heat exchange of the heat exchanger; the compressor cavity 302 is used to house equipment such as a compressor and an electrical control box 10.

[0114] Furthermore, a connecting hole 401 is formed at the partition plate 40, and an air inlet structure 33 is provided on the first sidewall of the housing assembly 30 on the side of the compressor cavity 302, which is opposite to the partition plate 40 in the first direction. Air outside the housing assembly 30 can enter the housing assembly 30 through the air inlet structure 33. Here, the "first direction" refers to the left-right direction of the outdoor unit 100 of the air conditioner.

[0115] Combination Figure 2 and Figure 3 As shown, the electrical control box 10 is connected between the middle partition 40 and the first side plate 312, and the electrical control box 10 includes a box assembly 2. The box assembly 2 forms a heat dissipation air duct (i.e., the first air duct 101 and the second air duct 102 mentioned above). The air outlet side of the heat dissipation air duct (i.e., the first air outlet 1012 and the second air outlet 1022 mentioned above) is connected to the connecting hole 401, so that the air flowing through the heat dissipation air duct can be discharged to the fan cavity 301 side through the connecting hole 401. The second air inlet 1021 of the second air duct 102 can be connected to the air inlet structure 33, so that air can be directly supplied to the second air duct 102 through the outside of the shell assembly 30. At the same time, the first air inlet 1011 of the first air duct 101 can be connected to the compressor cavity 302, so that air can be supplied to the first air duct 101 through the compressor cavity 302.

[0116] It should be noted that when the fan is running, the airflow in the fan cavity 301 can form a negative pressure area on the side of the partition plate 40 adjacent to the fan cavity 301. Under the action of the negative pressure area, the air in the first air duct 101 and the second air duct 102 can be discharged to one side of the fan cavity 301 through the connecting hole 401. At the same time, air can be supplied to the second air duct 102 and the first air duct 101 from the outside of the compressor cavity 302 and the shell assembly 30, respectively, thereby forming airflow in the second air duct 102 and the first air duct 101. In turn, the heat at the electrical control box 10 can be transferred to the side of the fan cavity 301 through the air, thereby achieving heat dissipation and cooling at the electrical control box 10.

[0117] like Figure 19As shown, in some embodiments of this application, a louver 41 is provided at the connecting hole 401. The louver 41 can improve the protection effect at the connecting hole 401 to prevent rainwater and other pollutants on the side of the fan cavity 301 from entering the electrical control box 10 through the connecting hole 401.

[0118] In some embodiments of this application, the shell assembly 30 further includes a panel 32, which includes a first panel 321 and a second panel 322. The first panel 321 and the second panel 322 are arranged sequentially and connected along a first direction. The adjacent portions of the first panel 321 and the second panel 322 are connected and cooperate with the partition plate 40. That is, the first panel 321 is the component in panel 32 corresponding to the fan cavity 301, and the second panel 322 is the component in panel 32 corresponding to the compressor cavity 302. This facilitates the assembly of the shell assembly 30 and the partition plate 40, and also facilitates the inspection and maintenance of the devices in the fan cavity 301 and the compressor cavity 302.

[0119] Understandably, when it is necessary to disassemble the electrical control box 10, only the second panel 322 needs to be removed to open the compressor cavity 302 on one side of the panel 32, making it convenient for operators to install and remove the electrical control box 10 from the side of the panel 32. Similarly, if it is necessary to inspect and maintain the devices (such as fans, heat exchangers, etc.) in the fan cavity 301, removing the first panel 321 will fully expose the devices in the fan cavity 301 from one side of the panel 32, making it convenient for operators to operate.

[0120] According to an embodiment of this application, the air conditioner includes the outdoor unit 100 described above.

[0121] 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.

[0122] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0123] In the description of this application, "multiple" means two or more.

[0124] 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.

[0125] 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.

[0126] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0127] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application 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: A PCB board and electrical components, wherein the electrical components are mounted on the PCB board; The box assembly has a first air duct and a second air duct arranged vertically and open to one side of the PCB board. The first air duct and the second air duct are independently arranged. The first air duct is located above the second air duct. The box assembly has a water guiding surface on the inner bottom wall of the second air duct. The water guiding surface is used to guide water in the second air duct to the outside of the box assembly.

2. The electrical control box according to claim 1, characterized in that, The box assembly includes: A first enclosure and a third enclosure are arranged opposite each other in the vertical direction, and the water guiding surface is formed on the third enclosure; The second and fourth enclosure panels are positioned opposite each other and spaced apart. The second and fourth enclosure panels are respectively connected between the first and third enclosure panels. The first, second, third, and fourth enclosure panels surround each other to form the second air duct.

3. The electrical control box according to claim 2, characterized in that, The third enclosure panel includes a first panel segment and a second panel segment. The first panel segment extends from the second air inlet of the second air duct to the second air outlet of the second air duct, and the second panel segment extends from the second air outlet to the second air inlet and is connected to the first panel segment.

4. The electrical control box according to claim 3, characterized in that, The first plate segment extends downward at an angle from the end connected to the second plate segment toward the second air inlet side; And / or, the second plate segment extends downward at an angle from the end connected to the first plate segment toward the second air outlet side.

5. The electrical control box according to claim 2, characterized in that, The third enclosure is provided with a drain outlet, which is used to connect the second air duct to the outside of the box assembly.

6. The electrical control box according to claim 2, characterized in that, The second enclosure has an opening opposite to one side of the fourth enclosure, and the lower edge of the opening is spaced apart from the third enclosure in the vertical direction.

7. The electrical control box according to claim 6, characterized in that, The box assembly also includes a baffle connected to the second enclosure and used to cover the opening.

8. The electrical control box according to claim 6, characterized in that, The distance between the lower edge of the opening and the third enclosure is L, and satisfies the relationship: 3mm≤L≤10mm.

9. The electrical control box according to claim 2, characterized in that, The fourth enclosure has a first clearance area, which is disposed opposite to the PCB board, and the first enclosure, the second enclosure, the third enclosure, and the fourth enclosure are integrally disposed.

10. The electrical control box according to claim 2, characterized in that, The fourth enclosure is provided with a first insertion slot that opens to one side of the second enclosure, and the first insertion slot is used to insert and cooperate with the first enclosure. And / or, the fourth enclosure is provided with a second insertion slot that opens to one side of the second enclosure, the second insertion slot being used for insertion and engagement with the third enclosure.

11. An outdoor unit for an air conditioner, characterized in that, Includes the electrical control box according to any one of claims 1-10.

12. An air conditioner, characterized in that, Includes the outdoor unit of the air conditioner as described in claim 11.

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