Air conditioner outdoor unit and air conditioner

Abstract

The air conditioner outdoor unit comprises a shell assembly, the shell assembly is provided with a cavity, a middle partition plate is arranged in the cavity and divides the cavity into a fan cavity and a compressor cavity, a communicating hole communicating the fan cavity with the compressor cavity is formed in the middle partition plate, and a first shutter is arranged at the position, at the communicating hole, of the middle partition plate; and the electric control box is arranged in the compressor cavity and provided with a heat dissipation air channel, an electric device is arranged in the heat dissipation air channel, the air outlet end of the heat dissipation air channel communicates with the communicating hole, and the box assembly is provided with a second shutter at the air outlet end of the heat dissipation air channel. Therefore, air circulation can be achieved at the electric control box through negative pressure generated on one side of the fan cavity, heat dissipation and cooling are achieved in an air cooling mode, and the first shutter and the second shutter can form a multi-protection structure at the matched position of the electric control box and the communicating hole so as to prevent rainwater and other pollutants from entering the electric control box through the communicating hole. And the safety and the reliability of the electric control box are improved.

Description

Technical Field

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

[0002] Currently, air conditioner outdoor units are used in outdoor environments. The outdoor unit contains an electrical control box, which can dissipate heat through air cooling, meaning the electrical control box is not sealed.

[0003] In related technologies, when the outdoor environment is harsh, such as during typhoons or heavy rain, rainwater may enter the electrical control box and splash onto the circuit board, which can easily cause short circuits, sparks, and other problems, posing safety hazards. Utility Model Content

[0004] This application aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of this application is to provide an air conditioner outdoor unit with good protection at the electrical control box.

[0005] This application also proposes an air conditioner.

[0006] An outdoor unit for an air conditioner according to a first aspect of this application includes: a housing assembly having a cavity, a partition plate being provided within the cavity, the partition plate separating the cavity to form a fan cavity and a compressor cavity, the partition plate having a communicating hole connecting the fan cavity and the compressor cavity, and the partition plate having a first louver at the communicating hole; and an electrical control box being disposed in the compressor cavity and having a heat dissipation duct, an electrical component being arranged within the heat dissipation duct, and the air outlet end of the heat dissipation duct communicating with the communicating hole, the housing assembly having a second louver at the air outlet end of the heat dissipation duct.

[0007] In this application, the electrical control box can achieve air circulation through the negative pressure formed in the fan cavity to achieve air cooling. Furthermore, a first louver and a second louver are respectively provided at the air outlet of the connecting hole and the heat dissipation duct. The first louver and the second louver can form a multi-protection structure at the matching position of the electrical control box and the connecting hole to prevent rainwater and other pollutants from entering the electrical control box through the connecting hole, thereby improving the safety and reliability of the electrical control box.

[0008] According to some embodiments of this application, the electrical control box includes: a box assembly having a mounting cavity open to one side; and a PCB board vertically disposed at the open end of the mounting cavity, which, together with the box assembly, defines the heat dissipation channel, and the PCB board is connected and cooperates with the electrical components.

[0009] According to some embodiments of this application, the second louver has a second blade, which is arranged vertically and extends from the air outlet end toward the air inlet side of the heat dissipation duct toward the side away from the PCB board, forming a second window that opens toward the side away from the PCB board.

[0010] According to some embodiments of this application, the second louver is provided with a baffle, and the baffle is located on the side of the second louver adjacent to the PCB board and is used to shield the electrical components.

[0011] According to some embodiments of this application, there are multiple second blades, and the baffle is connected between two adjacent second blades; and / or, the baffle is connected between the second blade and the wall of the heat dissipation duct.

[0012] According to some embodiments of this application, the first louver has a first blade, the first blade is arranged laterally, and the first blade extends downwardly at an angle from the side adjacent to the compressor cavity toward the fan cavity side.

[0013] According to some embodiments of this application, the plane where the first blade is located intersects with the plane where the second blade is located.

[0014] 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 arranged opposite to each other and spaced apart in the vertical direction; a second enclosure, the second enclosure being connected between the first enclosure and the third enclosure, and the first enclosure, the second enclosure and the third enclosure surrounding each other to form the mounting cavity, the mounting cavity being open to one side of the PCB board.

[0015] According to some embodiments of this application, the first enclosure is disposed below the third enclosure, and the first enclosure extends downward at an angle from one end adjacent to the PCB board to the side away from the PCB board.

[0016] According to some embodiments of this application, the angle between the first enclosure and the horizontal direction is α, and satisfies the relationship: 2°≤α≤8°.

[0017] According to some embodiments of this application, the first enclosure is disposed below the third enclosure, and a water-blocking rib is provided on the side surface of the first enclosure opposite to the third enclosure, and the water-blocking rib is disposed near the PCB board.

[0018] The air conditioner according to the second aspect of this application includes the above-described outdoor unit.

[0019] 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

[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 an exploded view of an air conditioner outdoor unit according to an embodiment of this application;

[0024] Figure 4 This is a schematic diagram of the structure of the electrical control box according to an embodiment of this application. Figure 1 ;

[0025] Figure 5 This is a schematic diagram of the structure of the electrical control box according to an embodiment of this application. Figure 2 ;

[0026] Figure 6 This is an exploded view of the electrical control box according to one embodiment of this application;

[0027] Figure 7 This is a schematic diagram of the structure of a box assembly according to an embodiment of this application. Figure 1 ;

[0028] Figure 8 This is a schematic diagram of the structure of a box assembly according to an embodiment of this application. Figure 2 ;

[0029] Figure 9 This is a schematic diagram of the structure of a box assembly according to an embodiment of this application. Figure 3 ;

[0030] Figure 10 This is a schematic diagram of the structure of a box assembly according to an embodiment of this application. Figure 4 ;

[0031] Figure 11 This is a front view of a box assembly according to an embodiment of this application;

[0032] Figure 12 yes Figure 11 A cross-sectional view at the centerline AA;

[0033] Figure 13 yes Figure 11 A cross-sectional view at the centerline BB;

[0034] Figure 14 This is a schematic diagram of the structure of the partition plate according to one embodiment of this application.

[0035] Figure label:

[0036] Air conditioner outdoor unit 100;

[0037] Electrical control box 1; heat dissipation duct 101; heat exchange duct 102; PCB board 11; electrical components 12; box assembly 13; first enclosure 131; water baffle 1311; first water baffle section 13111; second water baffle section 13112; second enclosure 132; third enclosure 133; fourth enclosure 134; fifth enclosure 135; sixth enclosure 136; seventh enclosure 137; second louver 14; second blade 141; baffle 142; radiator 15; heat dissipation base plate 151; heat dissipation fins 152; radiator bracket 16;

[0038] Shell assembly 2; fan cavity 201; compressor cavity 202; first side plate 212; air inlet structure 2121; panel 22; first panel 221; second panel 222;

[0039] Partition plate 3; connecting hole 301; first louver 31; first blade 311. 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 1-14 This application describes an air conditioner outdoor unit 100 according to an embodiment of the present application, which is applied in an outdoor environment.

[0042] According to an embodiment of this application, the outdoor unit 100 of an air conditioner includes a housing assembly 2 and an electrical control box 1.

[0043] Reference Figure 2As shown, the shell assembly 2 has a cavity, and a partition 3 is provided in the cavity. The partition 3 separates the cavity to form a fan cavity 201 and a compressor cavity 202 arranged adjacent to each other. The partition 3 has a connecting hole 301, which is provided through the partition 3 along the thickness direction. The connecting hole 301 can be used to connect the fan cavity 201 and the compressor cavity 202, so that air on the compressor cavity 202 side can flow into the fan cavity 201 side through the connecting hole 301.

[0044] Reference Figure 13 As shown, the partition plate 3 is provided with a first louver 31 at the connecting hole 301, so as to block the connecting hole 301 through the first louver 31. The first louver 31 can protect the connecting hole 301 to prevent pollutants (such as rainwater) on the side of the fan cavity 201 from entering the compressor cavity 202 through the connecting hole 301 and splashing onto the electrical components 12 of the electrical control box 1, thereby improving the protection effect on the electrical control box 1.

[0045] Combination Figure 4 , Figure 5 and Figure 6 As shown, the electrical control box 1 has a heat dissipation duct 101, and an electrical component 12 is arranged inside the heat dissipation duct 101. The air flowing through the heat dissipation duct 101 can transfer the heat at the electrical component 12 to the outside of the electrical control box 1, so as to achieve heat dissipation and cooling at the electrical component 12.

[0046] The air outlet of the heat dissipation duct 101 is connected to the connecting hole 301, allowing air inside the heat dissipation duct 101 to be discharged to the fan cavity 201 through the connecting hole 301. Simultaneously, the box assembly 13 has a second louver 14 at the air outlet of the heat dissipation duct 101. The second louver 14 can shield the air outlet of the heat dissipation duct 101, thereby preventing external contaminants (such as rainwater) from entering the electrical control box 1 from the air outlet of the heat dissipation duct 101, protecting the electrical components 12 inside the electrical control box 1, and improving the safety and reliability of the electrical control box 1.

[0047] Understandably, the air inlet of the cooling duct 101 is used to allow air to flow in and replenish the cooling duct 101. The air inlet of the cooling duct 101 can be connected to the compressor cavity 202, and can also be connected to the outside of the housing assembly 2. When the air inlet of the cooling duct 101 is connected to the compressor cavity 202, air in the compressor cavity 202 can enter the cooling duct 101, and the compressor cavity 202 can be connected to the outside of the housing assembly 2 to replenish the compressor cavity 202 with air from the outside of the air conditioner outdoor unit 100; when the air inlet of the cooling duct 101 is connected to the outside of the housing assembly 2, air located outside the air conditioner outdoor unit 100 can directly enter the cooling duct 101.

[0048] It should be noted that the fan cavity 201 is used to house equipment such as fans and heat exchangers, while the compressor cavity 202 is used to house equipment such as compressors, pipelines, and electrical control box 1. In this application, the electrical control box 1 is arranged in the compressor cavity 202, thereby avoiding interference between the electrical control box 1 and equipment such as fans, and ensuring the airflow effect on the fan cavity 201 side.

[0049] When the fan is running, a fast-flowing airflow can be formed in the fan cavity 201. Under the action of the airflow, a negative pressure can be formed on the side of the partition 3 facing the fan cavity 201. Under the action of the negative pressure, the air in the heat dissipation duct 101 connected to the side of the fan cavity 201 through the connecting hole 301 can flow to the side of the fan cavity 201, thereby transferring the heat of the electrical component 12 to the side of the fan cavity 201 through the air, so that the electrical component 12 can achieve heat dissipation and cooling through air cooling.

[0050] Therefore, the outdoor unit 100 of the air conditioner in this application creates a negative pressure on the fan cavity 201 side of the partition 3, thereby drawing air from the heat dissipation duct 101 through the connecting hole 301 to the fan cavity 201 side, thus transferring heat from the electrical control box 1 to the fan cavity 201 side and cooling the electrical components 12 in the electrical control box 1. At the same time, the first louver 31 and the second louver 14 cooperate to form a double protection structure at the air outlet of the heat dissipation duct 101 and the connecting hole 301, thereby preventing contaminants (such as rainwater) on the fan cavity 201 side from entering the electrical control box 1 under the influence of airflow, improving the protection effect of the electrical control box 1, and enhancing the stability and reliability of the electrical control box 1 during operation.

[0051] Currently, the outdoor unit 100 of the air conditioner is used in an outdoor environment. The outdoor unit 100 contains an electrical control box 1, which can dissipate heat through air cooling; that is, the electrical control box 1 is in an unsealed state. In related technologies, when the outdoor environment is harsh, such as during typhoons or heavy rain, rainwater may enter the electrical control box 1 and splash onto the circuit board, potentially causing short circuits, arcing, and other problems, posing a safety hazard.

[0052] The electrical components 12 can be directly exposed within the heat dissipation duct 101. When air flows through the heat dissipation duct 101, it can exchange heat with the electrical components 12 to carry away the heat, thus achieving heat dissipation and cooling. Since the electrical components 12 are directly exposed within the heat dissipation duct 101, there is a risk that rainwater or other contaminants entering the electrical control box 1 will splash onto the electrical components 12, potentially causing short circuits, arcing, or other problems.

[0053] It should be noted that in the outdoor unit 100 of the air conditioner, the fan cavity 201 is usually constructed to communicate with the outside of the shell assembly 2. The air outside the outdoor unit 100 can enter the fan cavity 201 from the shell assembly 2, exchange heat with the heat exchanger at the fan cavity 201, and then be discharged under the action of the fan. This allows pollutants such as rainwater mixed in the outdoor air to enter the fan cavity 201 along with the air. As a result, the air mixed with rainwater may enter the electrical control box 1 through the connecting hole 301 under the drive of the fan, which poses a safety hazard.

[0054] In this application, the electrical control box 1 can achieve air circulation through the negative pressure formed at the fan cavity 201 to achieve air cooling. Furthermore, a first louver 31 and a second louver 14 are respectively provided at the air outlet of the connecting hole 301 and the heat dissipation duct 101. The first louver 31 and the second louver 14 can form a multi-protection structure at the matching position of the electrical control box 1 and the connecting hole 301 to prevent rainwater and other pollutants from entering the electrical control box 1 through the connecting hole 301, thereby improving the safety and reliability of the electrical control box 1.

[0055] In some embodiments of this application, the electrical control box 1 includes a box assembly 13 and a PCB board 11. The box assembly 13 forms a mounting cavity that opens to one side. The PCB board 11 is vertically disposed at the open end of the mounting cavity. The PCB board 11 cooperates with the box assembly 13 to define a heat dissipation channel 101. The PCB board 11 also serves as a mounting carrier for electrical components 12, which can be arranged on the PCB board 11, specifically on the side surface of the PCB board 11 opposite to the heat dissipation channel 101. Thus, when the PCB board 11 cooperates with the electrical control box 1 to define the heat dissipation channel 101, the electrical components 12 arranged on the PCB board 11 can be placed within the heat dissipation channel 101.

[0056] It should be noted that the "vertical" mentioned above refers to the position of the electrical control box 1 when it is installed in the outdoor unit 100 of the air conditioner. The vertically arranged PCB board 11 is not conducive to the adhesion of rainwater. Even if rainwater or other contaminants splash onto the PCB board 11, the water droplets can quickly slide off under the action of gravity, avoiding the risk of short circuits or arcing at the PCB board 11 due to water droplets adhering to the PCB board 11 for a long time.

[0057] Combination Figure 8 , Figure 9 and Figure 11 As shown, in some embodiments of this application, the second louver 14 has a second blade 141, which is arranged vertically and extends from the air outlet end toward the air inlet side of the heat dissipation duct 101 away from the PCB board 11, thereby forming a second window that is open to the side away from the PCB board 11.

[0058] Reference Figure 12As shown, the second louver 14 may include multiple second blades 141, and the second window may be defined by two adjacent second blades 141. The second blades 141 extend from the air outlet towards the inside of the heat dissipation duct 101, and are inclined in the direction of extension away from the PCB board 11, so that the second window opens away from the PCB board 11. That is, even if water droplets enter the heat dissipation duct 101 through the second louver 14, the water droplets will be directed towards the side panel structure opposite to the PCB board 11 in the box assembly 13 (i.e., the second panel 132 shown in the figure), preventing water droplets from hitting the PCB board 11 and improving the protection effect on the PCB board 11.

[0059] It is understandable that the electrical components 12 are arranged on the side of the PCB board 11 facing the heat dissipation duct 101 by means of electrical connection. If water droplets are sprayed onto one side of the PCB board 11, the water droplets will directly spray onto the side of the PCB board 11 where the electrical components 12 are connected and mated, which may easily cause faults such as short circuits and arcing.

[0060] In this application, since the PCB board 11 is arranged vertically, the vertically arranged second blade 141 can form a second window that opens to the side away from the PCB board 11. This can ensure the air outlet effect of the heat dissipation duct 101 while preventing water droplets entering the heat dissipation duct 101 through the second window from directly hitting the PCB board 11, thereby improving the protection effect on the PCB board 11 and electrical components 12 in the electrical control box 1.

[0061] like Figure 12 As shown, in some embodiments of this application, the second louver 14 is provided with a baffle 142, and the baffle 142 is disposed on the side of the second blade 141 adjacent to the PCB board 11. The baffle 142 is used to shield the electrical components 12 to improve the protection effect of the electrical components 12 and prevent water droplets entering the heat dissipation duct 101 through the second window from hitting the electrical components 12.

[0062] In a further embodiment of this application, there are multiple second blades 141, and baffles 142 are connected between two adjacent second blades 141. The baffles 142 can block the gap between two second blades 141, thereby improving the protective effect of the second louver 14 on the heat dissipation duct 101 at the air outlet. At the same time, the baffles 142 can also provide support between two second blades 141, thereby improving the structural strength of the second blades 141 and enhancing their local resistance to deformation, thus ensuring the protective effect of the second louver 14.

[0063] In some embodiments of this application, the baffle 142 is connected between the second blade 141 and the wall of the heat dissipation duct 101, so as to support the second blade 141 between the wall of the heat dissipation duct 101 and the second blade 141, thereby improving the structural strength of the second blade 141 and enhancing the deformation resistance of the second blade 141.

[0064] It is understandable that multiple baffles 142 can be provided at the second louver 14. The baffles 142 can be connected between two adjacent second blades 141. The baffles 142 can also be connected between the second blades 141 and the wall of the heat dissipation duct 101. The position and connection method of the baffles 142 can be set according to the position arrangement requirements of the second blades 141 and the shielding requirements of the electrical components 12 in the heat dissipation duct 101.

[0065] like Figure 14 As shown, in some embodiments of this application, the first louver 31 has a first blade, and the first blade is arranged laterally. Moreover, the first blade extends downward from the side adjacent to the compressor cavity 202 toward the fan cavity 201 side, thereby forming a first window that is tilted downward and open toward the fan cavity 201 side. This increases the difficulty for rainwater on the fan cavity 201 side to enter the fan cavity 201 side through the connecting hole 301, and improves the protective effect at the connecting hole 301.

[0066] Reference Figure 14 The first louver 31 has multiple first blades, which are arranged sequentially at intervals in the vertical direction at the connecting hole 301. The air discharged from the heat dissipation duct 101 to the side of the fan cavity 201 can pass through the air between two adjacent first blades, ensuring the air discharge effect at the heat dissipation duct 101.

[0067] It is understandable that the first window can be defined by two adjacent first blades and the frame of the first louver 31, so that multiple ventilation structures can be formed at the first louver 31 through multiple first blades. While ensuring the air passage effect at the ventilation hole, the protective shielding effect of the first louver 31 on the connecting hole 301 is improved, preventing rainwater and other pollutants on the side of the fan cavity 201 from entering the heat dissipation air duct 101 through the connecting hole 301.

[0068] In some embodiments of this application, the plane of the first blade intersects with the plane of the second blade 141. That is, among the multiple first blades and multiple second blades 141, any one first blade and any one second blade 141 are not parallel or coplanar. This increases the difficulty for water droplets on one side of the fan cavity 201 to enter the heat dissipation duct 101 through the connecting hole 301, and improves the protective effect of the first blade and the second blade 141 on the heat dissipation duct 101 at the air outlet end where it meets the connecting hole 301.

[0069] It should be noted that the tilt angle and arrangement position of the first blade at the connecting hole 301, and the tilt angle and arrangement position of the second blade 141 at the air outlet of the heat dissipation duct 101 can be designed according to the protection requirements of the electrical control box 1 at the interface with the connecting hole 301.

[0070] In a preferred embodiment of this application, the plane of the first blade is perpendicular to the plane of the second blade 141, thereby significantly improving the protection effect of the first louver 31 and the second louver 14 on the heat dissipation duct 101 at the air outlet and the connecting hole 301.

[0071] like Figure 9 and Figure 10 As shown, in some embodiments of this application, the box assembly 13 includes a first enclosure 131, a second enclosure 132, and a third enclosure 133.

[0072] The first enclosure 131 and the third enclosure 133 are arranged opposite each other and spaced apart in the vertical direction. The second enclosure 132 is connected between the first enclosure 131 and the third enclosure 133. The first enclosure 131, the second enclosure 132 and the third enclosure 133 surround each other to form a mounting cavity, which is open to one side of the PCB board 11.

[0073] After the PCB board 11 is installed and fitted with the box assembly 13, the PCB board 11 and the second enclosure 132 are positioned opposite each other and spaced apart. The electrical components 12 are arranged on the side surface of the PCB board 11 opposite to the second enclosure 132, so that the electrical components 12 are arranged in the heat dissipation air duct 101 defined by the PCB board 11 and the enclosure structure (i.e. the first enclosure 131, the second enclosure 132 and the third enclosure 133 mentioned above).

[0074] In a further embodiment of this application, the first enclosure 131 is disposed below the third enclosure 133, and the first enclosure 131 extends downward at an angle from the end adjacent to the PCB board 11 to the side away from the PCB board 11, so that the first enclosure 131 can guide water droplets away from the PCB board 11 to prevent water droplets from contacting the PCB board 11 or the electrical components 12 arranged on the PCB board 11, thereby improving the protection effect on the PCB board 11 and the electrical components 12 arranged on the PCB board 11.

[0075] It is understandable that when water enters the heat dissipation duct 101, the water will flow downwards under the action of gravity to the first enclosure 131. Since the first enclosure 131 is inclined relative to the horizontal direction, the water can be guided to the outside of the heat dissipation duct 101 through the first enclosure 131 to prevent water from stagnating in the heat dissipation duct 101.

[0076] The first enclosure 131 forms the inner bottom wall of the heat dissipation duct 101, and the first enclosure 131 extends downward at an angle away from the PCB board 11, thereby guiding water away from the PCB board 11 and preventing water from flowing to the PCB board 11, thus ensuring the drainage effect at the heat dissipation duct 101.

[0077] In a further embodiment of this application, the angle between the first enclosure 131 and the horizontal direction is α, and satisfies the relationship: 2°≤α≤8°. When the angle between the first enclosure 131 and the horizontal direction satisfies the above relationship, the guiding effect of the first enclosure 131 on the water flow can be guaranteed, which facilitates the drainage of water in the heat dissipation duct 101.

[0078] like Figure 7 and Figure 8 As shown, in some embodiments of this application, the first enclosure 131 is located below the third enclosure 133, and a water-blocking rib 1311 is provided on the surface of the first enclosure 131 opposite to the third enclosure 133. The water-blocking rib 1311 on the first enclosure 131 is located close to the PCB board 11, so as to restrict the water flow to the PCB board 11 through the water-blocking rib 1311, thereby protecting the PCB board 11.

[0079] Reference Figure 7 The water-blocking ribs 1311 are arranged vertically corresponding to the PCB board 11, and are located at the bottom of the heat dissipation duct 101 (i.e., on the first enclosure 131). When water droplets are attached to the first enclosure 131, the water-blocking ribs 1311 can prevent the water droplets from flowing to the PCB board 11 under the influence of airflow (i.e., air flowing through the heat dissipation duct 101), thus improving the protection effect on the PCB board 11.

[0080] like Figure 7 As shown in a further embodiment of this application, the water-blocking rib 1311 includes a first water-blocking section 13111 and a second water-blocking section 13112. The first water-blocking section 13111 is located at one end of the first enclosure 131 near the PCB board 11 and is arranged along the extension direction of the heat dissipation duct 101. One end of the second water-blocking section 13112 is connected to the first water-blocking section 13111 and extends along the width direction of the first enclosure 131 (i.e., the arrangement direction of the second enclosure 132 and the PCB board 11). The water on the first enclosure 131 is guided to the outside of the heat dissipation duct 101 by the cooperation of the first water-blocking section 13111 and the second water-blocking section 13112, thereby improving the protection effect on the PCB board 11 and electrical components 12 in the electrical control box 1.

[0081] Combination Figure 9 and Figure 10As shown, in some embodiments of this application, the box assembly 13 further includes a fourth enclosure 134, a fifth enclosure 135, a sixth enclosure 136, and a seventh enclosure 137.

[0082] The fifth enclosure 135 and the seventh enclosure 137 are arranged opposite each other in the vertical direction. The fourth enclosure 134 and the sixth enclosure 136 are arranged opposite each other and connected between the fifth enclosure 135 and the seventh enclosure 137. The fourth enclosure 134, the fifth enclosure 135, the sixth enclosure 136 and the seventh enclosure 137 surround to form a heat exchange air duct 102 that opens to one side of the PCB board 11. The PCB board 11 can block the opening of the heat exchange air duct 102, and the electrical components 12 arranged on the PCB board 11 can extend into the heat exchange air duct 102 through the opening of the heat exchange air duct 102 so that the heat in the heat exchange air duct 102 can be transferred outward by the air flowing through the heat exchange air duct 102, thereby realizing the heat dissipation and cooling of the components (such as electrical components 12, heat sink 15, etc.) in the electrical control box 1.

[0083] It is understandable that the box assembly 13 can form a heat exchange air duct 102 that is independent of the heat dissipation air duct 101 by setting the fourth enclosure 134, the fifth enclosure 135, the sixth enclosure 136 and the seventh enclosure 137. The heat exchange air duct 102 can also be used to dissipate heat and cool down the electrical components 12 arranged on the PCB board 11, thereby forming two air flow paths at the electrical control box 1, so as to transfer the heat at the electrical control box 1 to the outside by the air flowing through the heat dissipation air duct 101 or the heat exchange air duct 102, thereby achieving heat dissipation and cooling at the electrical control box 1.

[0084] The heat dissipation air duct 101 and the heat exchange air duct 102 are set independently, that is, the air in the heat dissipation air duct 101 will not cross flow with the air in the heat exchange air duct 102. This can ensure the stability of air flow in the heat dissipation air duct 101 and the heat exchange air duct 102, and can prevent the heated air (i.e. the air after heat exchange with the device) from flowing to other air ducts and affecting the heat dissipation and cooling efficiency of the electrical control box 1.

[0085] It should be noted that there are multiple electrical components 12 in the electrical control box 1, such as capacitive components, inductive components, and power components. These multiple electrical components 12 can be arranged in the areas of the PCB board 11 corresponding to the heat dissipation air duct 101 or the heat exchange air duct 102. By arranging the electrical components 12 in sections, the air flowing through the heat dissipation air duct 101 or the heat exchange air duct 102 can be used to dissipate heat and cool down the electrical components 12, thereby improving the heat dissipation efficiency of the electrical components 12 in the electrical control box 1.

[0086] The arrangement of the electrical components 12 on the PCB board 11 can be set according to the heat dissipation requirements of the electrical components 12. For example, the capacitive and inductive components of the multiple electrical components 12 can be arranged in the area of ​​the PCB board 11 corresponding to the heat dissipation airflow 101; the power components (such as bridge rectifiers) of the multiple electrical components 12 can be arranged in the area of ​​the PCB board 11 corresponding to the heat exchange airflow 102.

[0087] In some embodiments of this application, the electrical control box 1 further includes a heat sink 15 and a heat sink bracket 16. The heat sink bracket 16 is connected to the PCB board 11, and the heat sink bracket 16 can be configured to surround the electrical component 12 corresponding to the heat exchange duct 102 in the circumferential direction. The heat sink bracket 16 is used to mount the heat sink 15, so that the heat sink 15 is arranged in a suitable position for heat exchange with the electrical component 12, thereby the electrical component 12 corresponding to the heat exchange duct 102 can transfer heat outward through the heat sink 15. The heat sink 15 has a large contact area with the air in the heat exchange duct 102 and high heat exchange efficiency, which can improve the heat dissipation and cooling efficiency of the electrical control box 1 at the heat exchange duct 102.

[0088] In some embodiments of this application, the heat sink 15 includes a heat sink substrate 151 and a heat sink 152. The heat sink substrate 151 is connected to the heat sink bracket 16 and is used to exchange heat with the electrical device 12. That is, the heat at the electrical device 12 can be transferred to the heat sink substrate 151 and further transferred to the heat sink 152 through the heat sink substrate 151.

[0089] Furthermore, heat sinks 152 are connected to the side of the heat dissipation substrate 151 facing away from the PCB board 11, and extend from the heat dissipation substrate 151 away from the PCB board 11. Multiple heat sinks 152 are present, and the orientation of each heat sink 152 is approximately the same as the airflow direction in the heat exchange duct 102, to reduce the resistance encountered by the airflow through the radiator 15 and ensure effective airflow at the radiator 15. It is understood that the radiator 15 has multiple heat sinks 152, thereby increasing the contact area between the radiator 15 and the air in the heat dissipation duct 101, and improving the heat dissipation efficiency of the radiator 15 by increasing the heat dissipation area.

[0090] In some embodiments of this application, the heat exchange duct 102 is connected between the partition plate 3 and the first side plate 212 of the shell assembly 2, and an air inlet structure 2121 is provided on the first side plate 212. The air inlet structure 2121 can connect the compressor cavity 202 with the outside of the shell assembly 2. When the electrical control box 1 is connected and arranged between the partition plate 3 and the first side plate 212, the air inlet end of the heat exchange duct 102 is connected with the air inlet structure 2121, and the air outlet end of the heat exchange duct 102 can be connected and cooperated with the connecting hole 301. The air outside the shell assembly 2 can enter the heat exchange duct 102 through the air inlet structure 2121 and be discharged to the side of the fan cavity 201 through the connecting hole 301.

[0091] In some embodiments of this application, the fifth enclosure 135 is disposed above the seventh enclosure 137, and the fifth enclosure 135 and the first enclosure 131 are coplanar and integrally disposed, thereby saving the space occupied by the box assembly 13 in the vertical direction and making the electrical components 12 arranged on the PCB board 11 in the electrical control box 1 compactly arranged.

[0092] It is understood that the fifth enclosure 135 and the first enclosure 131 in the box assembly 13 are arranged coplanarly, thereby integrating the fifth enclosure 135 and the first enclosure 131 into a single partition structure. The partition structure separates the heat dissipation air duct 101 and the heat exchange air duct 102, that is, the two sides of the partition structure in the vertical direction face the heat dissipation air duct 101 and the heat exchange air duct 102 respectively. The above-mentioned arrangement of integrating the fifth enclosure 135 and the first enclosure 131 can reduce the number of enclosure structures in the box assembly 13 that form the heat dissipation air duct 101 and the heat exchange air duct 102, and make the heat dissipation air duct 101 and the heat exchange 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 15, capacitive devices, power devices, etc.) are arranged compactly, improving the space utilization of the electrical control box 1.

[0093] In some embodiments of this application, the shell assembly 2 further includes a panel 22, which includes a first panel 221 and a second panel 222. The first panel 221 and the second panel 222 are arranged sequentially and connected along a first direction. The adjacent portions of the first panel 221 and the second panel 222 are connected and fitted with the partition plate 3. That is, the first panel 221 is the component in panel 22 corresponding to the fan cavity 201, and the second panel 222 is the component in panel 22 corresponding to the compressor cavity 202. This facilitates the assembly of the shell assembly 2 with the partition plate 3 and facilitates the inspection and maintenance of the devices in the fan cavity 201 and the compressor cavity 202.

[0094] Understandably, when it is necessary to disassemble the electrical control box 1, only the second panel 222 needs to be removed to open the compressor cavity 202 on one side of the panel 22, making it convenient for operators to install and remove the electrical control box 1 from the side of the panel 22. Similarly, if it is necessary to inspect and repair the devices (such as fans, heat exchangers, etc.) in the fan cavity 201, the devices in the fan cavity 201 can be fully exposed from one side of the panel 22 after the first panel 221 is removed, making it convenient for operators to operate.

[0095] The air conditioner outdoor unit 100 according to the embodiments of this application has at least the following advantages compared to the prior art:

[0096] (1) A negative pressure is formed on one side of the fan cavity 201 of the outdoor unit 100 of the air conditioner. The electrical control box 1 arranged in the compressor cavity 202 can achieve heat dissipation and cooling by air cooling. A first louver 31 and a second louver 14 are respectively provided at the connecting hole 301 of the partition plate 3 and the air outlet of the electrical control box 1, so as to form multiple protections in the connecting and cooperating area between the electrical control box 1 and the fan cavity 201, thereby preventing rainwater and other pollutants from entering the electrical control box 1 from the fan cavity 201 side.

[0097] (2) The bottom of the heat dissipation duct 101 forms a drainage structure through the first enclosure 131 to drain the water in the heat dissipation duct 101, prevent rainwater and other pollutants from accumulating in the heat dissipation duct 101, and improve the safety of the electrical control box 1.

[0098] (3) A water-blocking rib 1311 is provided at the first enclosure 131 to prevent water from flowing to the PCB board 11 side at the first enclosure 131, thereby improving the protection effect on the PCB board 11.

[0099] The air conditioner according to an embodiment of this application includes the above-described outdoor unit 100.

[0100] The air conditioner and the outdoor unit 100 of the air conditioner according to the embodiments of this application have the same advantages as the prior art, and will not be repeated here.

[0101] 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.

[0102] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0103] In the description of this application, "multiple" means two or more.

[0104] 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 it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0105] 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.

[0106] 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.

[0107] 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 outdoor unit for an air conditioner, characterized in that, include: A shell assembly having a cavity, a partition plate being provided in the cavity, the partition plate separating the cavity to form a fan cavity and a compressor cavity, the partition plate having a connecting hole connecting the fan cavity and the compressor cavity, and the partition plate having a first louver at the connecting hole; An electrical control box is provided in the compressor cavity and has a heat dissipation duct. Electrical components are arranged in the heat dissipation duct, and the air outlet of the heat dissipation duct is connected to the connecting hole. The electrical control box is provided with a second louver at the air outlet of the heat dissipation duct.

2. The outdoor unit of the air conditioner according to claim 1, characterized in that, The electrical control box includes: A box assembly having a mounting cavity that opens to one side; The PCB board is vertically disposed at the open end of the mounting cavity and defines the heat dissipation channel with the box assembly, and the PCB board is connected and cooperated with the electrical components.

3. The outdoor unit of the air conditioner according to claim 2, characterized in that, The second louver has a second blade, which is arranged vertically and extends from the air outlet end toward the air inlet side of the heat dissipation duct away from the PCB board, forming a second window that opens away from the PCB board.

4. The outdoor unit of the air conditioner according to claim 3, characterized in that, The second louver is provided with a baffle, and the baffle is located on the side of the second louver near the PCB board, and is used to shield the electrical components.

5. The outdoor unit of the air conditioner according to claim 4, characterized in that, There are multiple second blades, and the baffles are connected between two adjacent second blades; And / or, the baffle is connected between the second blade and the wall of the heat dissipation duct.

6. The outdoor unit of the air conditioner according to claim 3, characterized in that, The first louver has a first blade, which is arranged laterally and extends downward at an angle from the side adjacent to the compressor cavity toward the fan cavity.

7. The outdoor unit of the air conditioner according to claim 6, characterized in that, The plane containing the first blade intersects with the plane containing the second blade.

8. The outdoor unit of the air conditioner according to claim 2, characterized in that, The box assembly includes: The first enclosure and the third enclosure are arranged opposite each other and spaced apart in the vertical direction; A second enclosure plate is connected between the first enclosure plate and the third enclosure plate, and the first enclosure plate, the second enclosure plate, and the third enclosure plate surround to form the mounting cavity, which is open to one side of the PCB board.

9. The outdoor unit of the air conditioner according to claim 8, characterized in that, The first enclosure is located below the third enclosure, and the first enclosure extends downward at an angle from the end adjacent to the PCB board to the side away from the PCB board.

10. The outdoor unit of the air conditioner according to claim 9, characterized in that, The angle between the first enclosure and the horizontal direction is α, and it satisfies the relationship: 2°≤α≤8°.

11. The outdoor unit of the air conditioner according to claim 8, characterized in that, The first enclosure is located below the third enclosure, and a water-blocking rib is provided on the side surface of the first enclosure opposite to the third enclosure, and the water-blocking rib is located near the PCB board.

12. An air conditioner, characterized in that, Includes an outdoor air conditioning unit according to any one of claims 1-11.

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