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 which are arranged in the first direction, and a communicating hole is formed in the middle partition plate; an air inlet structure is arranged on a first side plate, opposite to the middle partition plate in the first direction, of the shell assembly on one side of the compressor cavity; the electric control box is connected between the middle partition plate and the first side plate, the electric control box comprises a box assembly, a heat dissipation air channel is formed in the box assembly, the air outlet side of the heat dissipation air channel communicates with the communicating hole, the air inlet side of the heat dissipation air channel can communicate with at least one of the air inlet structure and the compressor cavity, and the air outlet side of the heat dissipation air channel is provided with a waterproof structure; and the radiator is arranged in the heat dissipation air channel. Therefore, the air flow flowing through the heat dissipation air channel is formed by forming negative pressure on the fan cavity side, air cooling heat dissipation of the electric control box is achieved, and pollutants on one side of the fan cavity can be prevented from entering the electric control box through the communicating hole.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, in particular to an air conditioner outdoor unit and an air conditioner. BACKGROUND

[0002] At present, the air conditioner outdoor unit is arranged outdoors, resulting in a poor working environment of the air conditioner outdoor unit. In the related art, an electric control box is arranged in the air conditioner outdoor unit. When the air conditioner outdoor unit is in a poor weather condition, such as a rainy day, rainwater can enter the compressor cavity and splash at the electric control box. If the rainwater splashes on the electric control board, short circuit, sparking and other problems are easily caused, and there is a safety hazard. CONTENT OF THE UTILITY MODEL

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, one object of the present application is to provide an air conditioner outdoor unit, which has good protection effect at the electric control box.

[0004] According to the air conditioner outdoor unit of the first aspect of the present application, the air conditioner outdoor unit comprises: a shell assembly, the shell assembly having a cavity, a middle partition plate being arranged in the cavity, the middle partition plate dividing the cavity to form a fan cavity and a compressor cavity arranged along a first direction, the middle partition plate being formed with a communication hole, and the shell assembly being provided with an air inlet structure on a first side plate opposite to the middle partition plate on a side of the compressor cavity in the first direction; an electric control box connected between the middle partition plate and the first side plate, the electric control box comprising: a box assembly, the box assembly being formed with a heat dissipation air duct, an air outlet side of the heat dissipation air duct being communicated with the communication hole, an air inlet side of the heat dissipation air duct being communicated with at least one of the air inlet structure and the compressor cavity, and the air outlet side of the heat dissipation air duct being provided with a waterproof structure; and a radiator arranged in the heat dissipation air duct.

[0005] In the present application, the airflow flowing through the heat dissipation air duct is formed by forming negative pressure on the side of the fan cavity, air cooling and heat dissipation of the electric control box are realized, and the waterproof structure is arranged on the air outlet side of the heat dissipation air duct, so that the pollutants on the side of the fan cavity can be prevented from entering the electric control box through the communication hole, and the electric control box is protected from water.

[0006] According to some embodiments of the present application, the waterproof structure comprises a first waterproof part and a second waterproof part, and the heat dissipation air duct comprises: a first air duct, the first air duct being provided with the first waterproof part at a first air outlet; and a second air duct, the second air duct being arranged below the first air duct, the second air duct being provided with the second waterproof part at a second air outlet.

[0007] According to some embodiments of the present application, the first air duct has a first air inlet communicating with the compressor cavity and a first air outlet communicating with the communication hole; the second air duct has a second air inlet communicating with the air inlet structure and a second air outlet communicating with the communication hole, and the heat sink is arranged in the second air duct.

[0008] According to some embodiments of the present application, the box assembly has a mounting cavity arranged along the first direction and a communication cavity arranged along the first direction, the mounting cavity is arranged at a side of the box assembly adjacent to the middle partition plate, the communication cavity is arranged at a side of the box assembly adjacent to the first side plate, one end of the communication cavity communicates with part of the mounting cavity, and the other end of the communication cavity communicates with the air inlet structure and arranges the mounting cavity and the air inlet structure in the first direction.

[0009] According to some embodiments of the present application, the inner bottom wall of the communication cavity gradually rises from the side adjacent to the first side plate to the side of the mounting cavity; and / or, the cross-sectional dimension of the communication cavity in the first direction gradually decreases from the air inlet structure to the side of the mounting cavity.

[0010] According to some embodiments of the present application, the mounting cavity includes a first mounting cavity and a second mounting cavity arranged along the vertical direction, the first mounting cavity forms the first air duct, and the second mounting cavity communicates with the communication cavity and forms the second air duct.

[0011] According to some embodiments of the present application, the first mounting cavity and the second mounting cavity are respectively arranged open to the same side of the second direction, the electric control box includes a PCB board, the PCB board is arranged vertically at the open side of the first mounting cavity and the second mounting cavity, and the heat sink is arranged at the side opposite to the second mounting cavity of the PCB board.

[0012] According to some embodiments of the present application, the electric control box further includes the electrical device, the electrical device is arranged at the side opposite to the mounting cavity of the PCB board, and the height position of the electrical device is not lower than the bottom of the heat sink.

[0013] According to some embodiments of the present application, the heat sink includes: a heat dissipation base plate connected with the PCB board; a plurality of heat dissipation fins arranged on the side of the heat dissipation base plate away from the PCB board, any two adjacent heat dissipation fins form a heat dissipation flow channel, and the extension direction of the heat dissipation flow channel is parallel to the first direction.

[0014] According to some embodiments of the present application, the box assembly comprises: a first panel and a third panel, the first panel and the third panel are oppositely and spacedly arranged in a vertical direction; a second panel and a fourth panel, the second panel and the fourth panel are oppositely and spacedly arranged in a second direction, the first panel, the second panel, the third panel and the fourth panel surround to form the second air duct; wherein the second direction is perpendicular to the vertical direction.

[0015] According to some embodiments of the present application, the first panel is arranged above the third panel, and a side wall surface of the third panel opposite to the first panel is an inner bottom wall of the second air duct, the inner bottom wall extends upwardly or downwardly from a side of the second panel to a side of the fourth panel.

[0016] According to some embodiments of the present application, the third panel is formed with a drainage port, the drainage port communicates the second air duct with the compressor cavity.

[0017] According to some embodiments of the present application, the box assembly comprises: a fifth panel and a sixth panel, the fifth panel and the sixth panel are spacedly arranged in the vertical direction; a seventh panel, the seventh panel is arranged vertically and connected between the fifth panel and the sixth panel, and the fifth panel, the sixth panel and the seventh panel surround to form the first mounting cavity.

[0018] According to some embodiments of the present application, the first waterproof part is configured as a first louver; and / or, the second waterproof part is configured as a second louver; and / or, the partition plate is provided with a third louver at the communication hole.

[0019] The air conditioner according to the second aspect of the embodiments of the present application comprises the air conditioner outdoor unit.

[0020] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the appended drawings.

[0022] Figure 1 is a structural schematic diagram of an air conditioner outdoor unit according to an embodiment of the present application Figure 1 ;

[0023] Figure 2 is a structural schematic diagram of an air conditioner outdoor unit according to an embodiment of the present application Figure 2 ;

[0024] Figure 3is a structural diagram of an air conditioner outdoor unit according to an embodiment of the present application Figure 3 ;

[0025] Figure 4 is an exploded view of an air conditioner outdoor unit according to an embodiment of the present application

[0026] Figure 5 is a top view of an air conditioner outdoor unit according to an embodiment of the present application

[0027] Figure 6 is a structural diagram of an electric control box according to an embodiment of the present application Figure 1 ;

[0028] Figure 7 is a structural diagram of an electric control box according to an embodiment of the present application Figure 2 ;

[0029] Figure 8 is a front view of an electric control box according to an embodiment of the present application

[0030] Figure 9 is a sectional view of A-A in Figure 8 ;

[0031] Figure 10 is a sectional view of B-B in Figure 8 ;

[0032] Figure 11 is a sectional view of C-C in Figure 8 ;

[0033] Figure 12 is a sectional view of D-D in Figure 8 ;

[0034] Figure 13 is an exploded view of an electric control box according to an embodiment of the present application

[0035] Figure 14 is a structural diagram of an electric control assembly according to an embodiment of the present application

[0036] Figure 15 is a structural diagram of a box assembly according to an embodiment of the present application Figure 1 ;

[0037] Figure 16 is a structural diagram of a box assembly according to an embodiment of the present application Figure 2 ;

[0038] Figure 17 is a structural diagram of a box assembly according to an embodiment of the present application Figure 3 ;

[0039] Figure 1 is a structural diagram of a partition plate according to an embodiment of the present application Figure 19 ;

[0040] Figure 2 is a structural diagram of a partition plate according to an embodiment of the present application Figure 20 ;

[0041] Figure 1 is a structural diagram of a heat sink according to an embodiment of the present application Figure 21 ;

[0042] Figure 2 is a structural diagram of a heat sink according to an embodiment of the present application Figures 1-19 .

[0043] Reference Signs:

[0044] Air conditioner outdoor unit 100;

[0045] Electric control box 10; electric control assembly 1; PCB board 11; electric device 12; heat sink 13; heat dissipation base plate 131; heat dissipation fin 132; horizontal water guide groove 133; vertical water guide groove 134; heat sink support 14; heat dissipation air duct 101; first air duct 1011; first air inlet 10111; first air outlet 10112; second air duct 1012; second air inlet 10121; second air outlet 10122;

[0046] Box assembly 2; communication cavity 201; first installation cavity 2021; second installation cavity 2022; first enclosing plate 21; second enclosing plate 22; third enclosing plate 23; liquid discharge port 231; fourth enclosing plate 24; fifth enclosing plate 25; sixth enclosing plate 26; seventh enclosing plate 27; support plate segment 28; first waterproof part 291; second waterproof part 292;

[0047] Shell assembly 30; fan cavity 301; compressor cavity 302; first side plate 31; air inlet structure 311; panel 32; first panel 321; second panel 322;

[0048] Partition plate 40; communication hole 401; third louver 41. DETAILED DESCRIPTION

[0049] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation of the present application.

[0050] Reference is made below to Figure 2An air conditioner outdoor unit 100 according to an embodiment of the present application is described, which is usually arranged outdoors.

[0051] The air conditioner outdoor unit 100 according to an embodiment of the present application comprises a shell assembly 30 and an electric control box 10, which can be used to control and adjust the running state of devices (such as a compressor, a fan, etc.) in the air conditioner outdoor unit.

[0052] As shown in Figure 4 and Figure 3 The shell assembly 30 has a cavity, and a partition plate 40 is arranged in the cavity. The partition plate 40 divides the cavity and forms a fan cavity 301 and a compressor cavity 302 arranged along a first direction. The fan cavity 301 can be used to arrange devices such as a fan and a heat exchanger, so as to drive air in the fan cavity 301 to flow by the fan and realize air cooling heat exchange of the heat exchanger; the compressor cavity 302 is used to arrange devices such as a compressor and the electric control box 10.

[0053] Further, the partition plate 40 is formed with a communication hole 401, and the shell assembly 30 is provided with an air inlet structure 311 on a first side plate 31 opposite to the partition plate 40 on a side of the compressor cavity 302 in the first direction. Air outside the shell assembly 30 can enter the shell assembly 30 through the air inlet structure 311. The above-mentioned "first direction" refers to the left-right direction of the air conditioner outdoor unit 100.

[0054] As shown in Figure 4 and Figure 16 The electric control box 10 is connected between the partition plate 40 and the first side plate 31, and the electric control box 10 comprises a box assembly 2. The box assembly 2 is formed with a heat dissipation air duct 101. An air outlet side of the heat dissipation air duct 101 communicates with the communication hole 401, so that air flowing through the heat dissipation air duct 101 can be discharged to the side of the fan cavity 301 through the communication hole 401. An air inlet side of the heat dissipation air duct 101 can communicate with at least one of the air inlet structure 311 and the compressor cavity 302, so that air can be transported to the heat dissipation air duct 101 from the compressor cavity 302 and the outside of the shell assembly 30.

[0055] It can be understood that when the air inlet side of the heat dissipation air duct 101 communicates with the air inlet structure 311, air outside the shell assembly 30 can directly enter the heat dissipation air duct 101 through the air inlet structure 311 and be discharged to the side of the fan cavity 301 after flowing through the heat dissipation air duct 101; when the air inlet side of the heat dissipation air duct 101 communicates with the compressor cavity 302, air in the compressor cavity 302 can enter the heat dissipation air duct 101 and be discharged to the side of the fan cavity 301 after flowing through the heat dissipation air duct 101.

[0056] It should be noted that the heat dissipation air duct 101 can include multiple sub-air ducts, and the multiple sub-air ducts are arranged independently of each other, that is, the multiple sub-air ducts are not communicated with each other. That is, in the process of air flowing through the heat dissipation air duct 101, the air in any sub-air duct will not flow into other sub-air ducts, so as to ensure the heat dissipation efficiency at the electric control box 10.

[0057] Further, taking the heat dissipation air duct 101 having two sub-air ducts as an example, the two ends (i.e., the air inlet side and the air outlet side) of one sub-air duct are communicated between the compressor cavity 302 and the communication hole 401, and the two ends of the other sub-air duct are communicated between the air inlet structure 311 and the communication hole 401. At this time, the heat dissipation air duct 101 can realize air inlet through two air inlet modes (i.e., compressor cavity 302 air inlet, external air inlet of the shell assembly 30), so as to improve the heat dissipation efficiency at the electric control box 10.

[0058] Referring to Figure 12 It is shown that the air outlet side of the heat dissipation air duct 101 is provided with a waterproof structure, and the waterproof structure is used to improve the waterproof performance of the heat dissipation air duct 101 at the air outlet side, so as to play a waterproof protection role on the devices in the electric control box 10.

[0059] As Figure 6 It is shown that the heat sink 13 is arranged in the heat dissipation air duct 101, and the heat sink 13 is used to exchange heat with the electrical devices 12 arranged in the box assembly 2, so as to improve the heat dissipation efficiency at the electrical devices 12. When the air in the heat dissipation air duct 101 flows through the heat sink 13, the air can exchange heat with the heat sink 13 to transfer the heat at the heat sink 13 to the side of the fan cavity 301, so as to realize the heat dissipation and cooling of the heat sink 13.

[0060] It can be understood that the electric control box 10 is provided with electrical devices 12 in addition to the heat sink 13, and by arranging the waterproof structure at the air outlet side of the heat dissipation air duct 101, the problem that the water, dust and other pollutants on the side of the fan cavity 301 enter the heat dissipation air duct 101 through the communication hole 401 and adhere to the electrical devices 12 can be prevented, so as to improve the safety and reliability of the electric control box 10.

[0061] It should be noted that when the fan is running, the airflow flowing in the fan cavity 301 can form a negative pressure area near the side of the fan cavity 301 adjacent to the partition plate 40. Under the action of the negative pressure area, the air in the heat dissipation air duct 101 can be discharged to the side of the fan cavity 301 through the communication hole 401, and at the same time, air can be supplemented into the heat dissipation air duct 101 through the compressor cavity 302 or the outside of the shell assembly 30, so as to form a flowing airflow in the heat dissipation air duct 101. In turn, the heat at the electric control box 10 can be transferred to the side of the fan cavity 301 through the air, so as to realize the heat dissipation and cooling of the electric control box 10.

[0062] Currently, the air conditioner outdoor unit 100 is arranged outdoors, resulting in a poor working environment for the air conditioner outdoor unit 100. In the related art, the air conditioner outdoor unit 100 is provided with an electric control box 10, and when the air conditioner outdoor unit 100 is in a poor weather condition, such as a rainy day, rainwater can enter the compressor cavity 302 and splash at the electric control box 10. If the rainwater splashes on the electric control board, a short circuit, sparking, and other problems can be caused, and there is a safety hazard.

[0063] In the present application, the airflow flowing through the heat dissipation air duct 101 is formed by forming a negative pressure on the side of the fan cavity 301, achieving air cooling and heat dissipation of the electric control box 10, and a waterproof structure is provided on the air outlet side of the heat dissipation air duct 101, so that the pollutants on the side of the fan cavity 301 can be prevented from entering the electric control box 10 through the communication hole 401, thereby achieving waterproof protection for the electric control box 10.

[0064] In combination with Figure 7 and Figure 3 It is shown that in some embodiments of the present application, the waterproof structure includes a first waterproof part 291 and a second waterproof part 292, the heat dissipation air duct 101 includes a first air duct 1011 and a second air duct 1012, and the first air duct 1011 is provided with the first waterproof part 291 at the first air outlet 10112, so as to prevent water from entering the air outlet side of the first air duct 1011 through the first waterproof part 291. The second air duct 1012 is arranged below the first air duct 1011, and the second air duct 1012 is provided with the second waterproof part 292 at the second air outlet 10122, so as to prevent water from entering the air outlet side of the second air duct 1012 through the second waterproof part 292.

[0065] It can be understood that the heat dissipation air duct 101 has a plurality of sub-air ducts (i.e., the first air duct 1011 and the second air duct 1012 described above), so as to transfer the heat at the electric control box 10 to the side of the fan through the plurality of sub-air ducts, thereby improving the heat dissipation and cooling efficiency at the electric control box 10. At the same time, the waterproof structure is provided at the air outlet side of the first air duct 1011 and the second air duct 1012, respectively, so as to improve the protection effect at the electric control box 10.

[0066] Among them, the first air duct 1011 and the second air duct 1012 are arranged along the vertical direction. Referring to Figure 3 It can be known that Figure 4 the arrow in is the air flow route at the electric control box 10, the first air duct 1011 and the second air duct 1012 are both arranged horizontally, at the first air duct 1011, the air in the compressor cavity 302 flows into the first air duct 1011 and is discharged to the side of the fan cavity 301; at the second air duct 1012, the air outside the shell assembly 30 flows into the second air duct 1012 and is discharged to the side of the fan cavity 301.

[0067] It should be noted that the air flow directions in the first air duct 1011 and the second air duct 1012 are substantially horizontally arranged, and when the first air duct 1011 and the second air duct 1012 are arranged along the vertical direction, the electrical control assembly 1 in the electrical control box 10 can be matched with the heat dissipation air duct 101, that is, the plurality of electrical devices 12 in the PCB board 11 can be arranged in zones, and the electrical devices 12 arranged in zones are arranged in the first air duct 1011 and the second air duct 1012 respectively, so that the devices in the electrical control box 10 can be cooled by the first air duct 1011 and the second air duct 1012 respectively, which helps to improve the cooling efficiency of the electrical control box 10. The electrical control assembly 1 can include electrical devices 12, PCB boards 11, and other devices.

[0068] Referring to Figure 17 In some embodiments of the present application, the first air inlet 10111 of the first air duct 1011 is in communication with the compressor cavity 302, and the first air outlet 10112 of the first air duct 1011 is in communication with the communication hole 401, so that the air in the compressor cavity 302 can enter the side of the fan cavity 301 after flowing through the first air duct 1011; the second air inlet 10121 of the second air duct 1012 is in communication with the air inlet structure 311, the second air outlet 10122 of the second air duct 1012 is in communication with the communication hole 401, and the heat sink 13 is arranged in the second air duct 1012, so that the air outside the air conditioner fan can enter the side of the fan cavity 301 after flowing through the second air duct 1012.

[0069] It can be understood that when a plurality of sub-air ducts are arranged at the electrical control box 10, if the plurality of sub-air ducts take in air through the same area, there will be a problem of uneven air entering the plurality of sub-air ducts, which affects the air inlet effect of part of the sub-air ducts, and causes the heat dissipation effect of the sub-air duct with less air inlet to weaken. In the present application, the air inlet modes of the first air duct 1011 and the second air duct 1012 are different, so as to ensure the air inlet effects of the first air duct 1011 and the second air duct 1012, and avoid the air inlet actions of the first air duct 1011 and the second air duct 1012 interfering with each other.

[0070] It should be noted that the shell assembly 30 also has a communication structure corresponding to the region of the compressor cavity 302, so as to communicate the compressor cavity 302 with the outside of the shell assembly 30, so that the air outside the shell assembly 30 can enter the compressor cavity 302 through the communication structure, so as to meet the demand of the compressor cavity 302 for delivering air to the first air duct 1011.

[0071] As Figure 16 shown, in some embodiments of the present application, the box assembly 2 has a mounting cavity and a communication cavity 201 arranged along a first direction.

[0072] The installation cavity is arranged on one side of the box assembly 2 close to the partition plate 40, the communication cavity 201 is arranged on one side of the box assembly 2 close to the first side plate 31, one end of the communication cavity 201 is communicated with part of the installation cavity, and the other end of the communication cavity 201 is communicated with the air inlet structure 311, so that the installation cavity and the air inlet structure 311 are arranged in the first direction through the communication cavity 201, a certain space is reserved between the installation cavity and the air inlet structure 311, the difficulty of the pollutants reaching the installation cavity through the air inlet structure 311 is increased, and the air inlet requirement of the installation cavity can be met while the device arranged in the installation cavity is protected.

[0073] It should be noted that the installation cavity is used to install the electric control assembly 1 and the like, and the communication cavity 201 is used to communicate the installation cavity with the air inlet structure 311. The air entering the shell assembly 30 through the air inlet structure 311 can enter the installation cavity after flowing through the air inlet cavity, so that a certain space is reserved between the installation cavity and the air inlet structure 311, and the difficulty of the rainwater and the like mixed in the air contacting the electric control assembly 1 is increased.

[0074] In combination with FIGS. 1 to 3, Figure 17 and Figure 16 In further embodiments of the present application, the inner bottom wall of the communication cavity 201 gradually rises from the side close to the first side plate 31 to the side of the installation cavity, so as to help the rainwater and the like entering the communication cavity 201 to flow out, and protect the electric control assembly 1 arranged on the side of the installation cavity.

[0075] It can be understood that the communication cavity 201 is communicated with the outside of the shell assembly 30 through the air inlet structure 311. When the air mixed with rainwater and the like enters the communication cavity 201 through the air inlet structure 311, the rainwater can adhere to the wall surface of the communication cavity 201 and flow downward (also away from the side of the installation cavity) under the action of gravity, reducing the risk of rainwater entering the installation cavity and improving the protection effect of the electric control assembly 1 in the electric control box 10. When the rainwater adheres to the bottom wall of the communication cavity 201, the rainwater at the bottom wall can flow downward and to the side of the air inlet structure 311, so as to facilitate the rainwater in the communication cavity 201 to flow out; when the rainwater adheres to the side wall (i.e. the vertically arranged wall surface) of the communication cavity 201, the rainwater can flow to the side of the bottom wall and flow outward to the side of the air inlet structure 311 along the extension direction of the bottom wall.

[0076] In some embodiments of the present application, the cross-sectional dimension of the communication cavity 201 in the first direction gradually decreases from the side of the air inlet structure 311 to the side of the installation cavity, so that the air flow rate in the communication cavity 201 gradually increases to the side of the installation cavity, the air flow effect at the communication cavity 201 is improved, and the air flow rate of the oil blown to the side of the installation cavity is ensured.

[0077] It can be understood that according to the fluid continuity equation Q = vA (Q: flow rate; A: flow area; v: flow rate), when the flow rate of the fluid (i.e. the air described above) remains constant, the flow rate of the fluid will increase as the flow area decreases.

[0078] In combination Figure 17 and Figure 3 As shown in FIGS. 1, 2, and 3, at the communication cavity 201 of the box assembly 2, the bottom wall can be inclined upward to the side of the mounting cavity, and the communication cavity 201 gradually decreases in cross-sectional area from the air inlet structure 311 to the side of the mounting cavity. Thus, the air flow rate to the side of the mounting cavity at the communication cavity 201 can be ensured while the protection effect of the communication cavity 201 on the side of the mounting cavity is improved, and the risk of short circuit and failure of the electric control assembly 1 due to contamination is reduced.

[0079] In combination Figure 17 and Figure 13 As shown in FIGS. 1, 2, and 3, in some embodiments of the present application, the mounting cavity includes a first mounting cavity 2021 and a second mounting cavity 2022 arranged along the vertical direction, and a first air duct 1011 is formed at the first mounting cavity 2021, and the second mounting cavity 2022 is connected to the communication cavity 201 and forms a second air duct 1012.

[0080] It can be understood that the number of electrical devices 12 in the electric control box 10 is multiple, and the first mounting cavity 2021 and the second mounting cavity 2022 are respectively used to cooperate with the electrical devices 12 in the electric control box 10, so that multiple electrical devices 12 can be arranged in the areas corresponding to the first mounting cavity 2021 and the second mounting cavity 2022 according to the heat dissipation requirements of the electrical devices 12, and the electrical devices 12 are cooled by the first air duct 1011 and the second air duct 1012 respectively.

[0081] The first air duct 1011 and the second air duct 1012 are independently arranged, and "independently" means that the first air duct 1011 and the second air duct 1012 are not connected to each other. That is, the air in the first air duct 1011 will not flow into the second air duct 1012, avoiding the air flowing through the electrical devices 12 in the first air duct 1011 flowing into the second air duct 1012 and affecting the heat dissipation effect of the electrical devices 12 arranged in the second air duct 1012. Similarly, the air in the second air duct 1012 will not flow into the first air duct 1011, avoiding the air flowing through the electrical devices 12 in the second air duct 1012 flowing into the first air duct 1011 and affecting the heat dissipation effect of the electrical devices 12 arranged in the first air duct 1011.

[0082] In combination Figure 17 and Figure 3As shown, in some embodiments of the present application, the first mounting cavity 2021 and the second mounting cavity 2022 are respectively open to the same side of the second direction, the electric control box 10 comprises a PCB 11, the PCB 11 is arranged vertically on the open side of the first mounting cavity 2021 and the second mounting cavity 2022, and the heat sink 13 is arranged on the side of the PCB 11 opposite to the second mounting cavity 2022, so that the heat sink 13 can be arranged at the second air duct 1012 (formed by the second mounting cavity 2022 and the communication cavity 201).

[0083] It should be noted that the "second direction" described above is the front-rear direction of the air conditioner outdoor unit 100. In combination with Figure 13 and Figure 14 As shown, the PCB 11 is arranged in the vertical direction, and part of the PCB 11 is arranged opposite to the first mounting cavity 2021 in the second direction, and part of the PCB 11 is arranged opposite to the second mounting cavity 2022 in the second direction. Therefore, the air flow direction in the first mounting cavity 2021 and the second mounting cavity 2022 can be guided by the PCB 11 to prevent the air in the mounting cavity (i.e. the first mounting cavity 2021 and the second mounting cavity 2022) from being discharged from the open side in the second direction.

[0084] Among them, since the first mounting cavity 2021 and the second mounting cavity 2022 are open to the side of the PCB 11, the devices (such as: electrical devices 12 and heat sinks 13, etc.) arranged on the PCB 11 can be inserted through the open side of the mounting cavity, which facilitates the installation and cooperation of the electric control assembly 1 and the box assembly 2.

[0085] Referring to Figure 12 As shown, the electrical devices 12 and the heat sink 13 are arranged on the same side of the PCB 11, i.e. the side of the PCB 11 opposite to the mounting cavity, so that the heat sink 13 and the electrical devices 12 arranged on the PCB 11 can be placed in the mounting cavity to achieve air cooling, and the installation difficulty of the electrical devices 12 and the PCB 11 can be reduced, avoiding double-sided welding at the PCB 11, and improving the production efficiency of the electric control assembly 1.

[0086] In combination with Figure 13 and Figure 20 As shown, in some embodiments of the present application, the electric control box 10 is provided with electrical devices 12, which are arranged on the side of the PCB 11 opposite to the mounting cavity, so that the electrical devices 12 can be inserted into the mounting cavity when the PCB 11 cooperates with the box assembly 2, and cooled by the air flowing through the mounting cavity.

[0087] Among them, the height position of the electrical devices 12 is not lower than the bottom of the heat sink 13, so as to prevent the water attached to the heat sink 13 from falling on the electrical devices 12 below the heat sink 13. Referring to Figure 21As shown in the drawings, a transverse water guide groove 133 extending transversely is formed in the lower part of the heat sink 13, which can drain water at the heat sink 13 to prevent water and other pollutants from staying on the heat sink 13; refer to Figure 6 As shown in the drawings, a vertical water guide groove 134 extending vertically is formed on the heat dissipation substrate 131 (the side surface opposite to the power device) of the heat sink 13, which can guide and drain the water at the heat dissipation substrate 131 downward to prevent water and other pollutants from staying on the heat sink 13. In this way, the height position of the electrical device 12 is arranged at a position not lower than the bottom of the heat sink 13, which can effectively prevent the water dripping at the heat sink 13 from falling on the electrical device 12.

[0088] It should be noted that the electrical device 12 can include power devices (such as bridge stacks, etc.), capacitive devices, and inductive devices, etc., and the heat generated by the electrical device 12 during operation is different, for example, compared to other electrical devices 12 (such as capacitive devices, etc.), the power device generates more heat during operation, so that the electrical device 12 can be arranged in different zones according to the difference in heat generated by the electrical device 12 during operation. For example, the power device is arranged in the second mounting cavity 2022, and the power device can be heat exchanged with the heat sink 13 to improve the heat dissipation efficiency at the power device through the heat sink 13. In this way, the electrical device 12 can be arranged in different zones in the PCB 11 according to the heat dissipation requirement of the electrical device 12 to improve the heat dissipation and cooling effect of the electrical device 12 in the electrical control box 10.

[0089] Refer to Figure 7 and Figure 20 As shown in the drawings, when the electrical control assembly 1 is installed and matched with the box assembly 2, part of the electrical device 12 can be placed outside the first mounting cavity 2021, and the air entering the first mounting cavity 2021 through the compressor cavity 302 can also flow through the electrical device 12 outside the first mounting cavity 2021 to achieve heat dissipation and cooling of the electrical device 12.

[0090] In some embodiments of the present application, the heat sink 13 includes a heat dissipation substrate 131 and a plurality of heat dissipation fins 132, the heat dissipation substrate 131 is connected with the PCB 11, and the plurality of heat dissipation fins 132 are arranged on the side of the heat dissipation substrate 131 away from the PCB 11. The heat of the power device can be transferred to the side of the heat dissipation fin 132 through the heat dissipation substrate 131. When the air in the second air duct 1012 flows through the heat dissipation fin 132, it can exchange heat with the heat dissipation fin 132 and transfer the heat to the side of the fan cavity 301, thereby achieving cooling at the power device. And through the cooperation of the heat sink 13 and the power device, the heat dissipation and cooling efficiency at the power device can be improved.

[0091] Further combined with Figure 21 and Figure 14As shown, the plurality of fins 132 are arranged in the vertical direction and spaced apart, and a heat dissipation flow channel is formed between any two adjacent fins 132, and the extension direction of the heat dissipation flow channel is substantially the same as the extension direction of the second air duct 1012, so that the resistance of the air in the second air duct 1012 when flowing through the fins 132 can be reduced, and the air circulation effect in the second air duct 1012 can be improved. It should be noted that the "extension direction of the heat dissipation flow channel" refers to the general direction of the heat dissipation flow channel for air circulation.

[0092] In some embodiments of the present application, the fins 132 extend in a wave shape in the second direction, so that the contact area of the fins 132 with the air in the first air duct 1011 can be increased, and the heat dissipation efficiency of the heat sink 13 can be improved, and the heat dissipation and cooling effect of the heat sink 13 on the power device can be improved.

[0093] Referring to Figure 17 As shown, in some embodiments of the present application, the heat sink 13 further comprises a heat sink support 14, the heat sink support 14 is arranged on the PCB 11, and the heat sink support 14 is used in connection with the heat dissipation base plate 131. The heat sink support 14 is a mounting carrier of the heat sink 13, so as to support the heat sink 13 in the second direction through the heat sink support 14, and fix the heat sink 13 on the PCB 11.

[0094] The heat sink support 14 is arranged on the side of the PCB 11 opposite to the second mounting cavity 2022, and the heat sink support 14 can surround and shield the power device in the circumferential direction, and the heat sink 13 can also shield the power device, so as to fully shield the power device and avoid the power device being attached with dust and other pollutants.

[0095] As Figure 17 As shown, in some embodiments of the present application, the box assembly 2 comprises a first surrounding plate 21, a second surrounding plate 22, a third surrounding plate 23 and a fourth surrounding plate 24, the first surrounding plate 21 and the third surrounding plate 23 are arranged opposite in the vertical direction, the second surrounding plate 22 and the fourth surrounding plate 24 are arranged opposite in the second direction, and the first surrounding plate 21, the second surrounding plate 22, the third surrounding plate 23 and the fourth surrounding plate 24 surround to form the second air duct 1012.

[0096] The second surrounding plate 22 and the fourth surrounding plate 24 are connected between the first surrounding plate 21 and the third surrounding plate 23 respectively, so that the second air duct 1012 is formed by the first surrounding plate 21, the second surrounding plate 22, the third surrounding plate 23 and the fourth surrounding plate 24, and the structure of the box assembly 2 at the second air duct 1012 is regular (substantially cuboid), which is convenient for installation and cooperation with the electronic control assembly 1.

[0097] In further embodiments of the present application, the fourth surrounding plate 24 is arranged at a side of the second air duct 1012 close to the PCB 11, and the fourth surrounding plate 24 is formed with a first avoiding opening, and a device (such as the heat sink 13) arranged on the PCB 11 can extend into the second air duct 1012 through the first avoiding opening.

[0098] It can be understood that the box assembly 2 of the present application is provided with the first avoiding opening at the fourth surrounding plate 24, and the first avoiding opening can avoid the heat sink 13 arranged on the PCB 11, so that the heat sink 13 can extend into the second air duct 1012 through the first avoiding opening, and the air in the second air duct 1012 can improve the heat dissipation cooling effect of the heat sink 13. That is, the heat sink 13 is arranged in the flow path of the airflow in the second air duct 1012, and the air flowing through the second air duct 1012 can fully contact the heat sink 13, thereby improving the heat dissipation effect of the heat sink 13.

[0099] As shown in Figure 17 In some embodiments of the present application, the first surrounding plate 21 is arranged above the third surrounding plate 23, and the side wall surface of the third surrounding plate 23 opposite to the first surrounding plate 21 is an inner bottom wall of the second air duct 1012, and the inner bottom wall extends upward or downward from the side of the second surrounding plate 22 to the side of the fourth surrounding plate 24.

[0100] It can be understood that the third surrounding plate 23 is connected between the second surrounding plate 22 and the fourth surrounding plate 24, and the second surrounding plate 22 and the fourth surrounding plate 24 are arranged opposite in the second direction (also the front-rear direction of the air conditioner outdoor unit 100). Taking the case that the second surrounding plate 22 is arranged at the front side of the fourth surrounding plate 24 as an example, when the inner bottom wall extends downwardly and obliquely to the side of the second surrounding plate 22, if water falls on the third surrounding plate 23, the inner bottom wall can guide the water to the side of the second surrounding plate 22 (i.e. the front side of the box assembly 2), so that the water is difficult to stay on the third surrounding plate 23; when the inner bottom wall extends downwardly and obliquely to the side of the fourth surrounding plate 24, if water falls on the third surrounding plate 23, the inner bottom wall can guide the water to the side of the fourth surrounding plate 24 (i.e. the rear side of the box assembly 2), so that the water is difficult to stay on the third surrounding plate 23.

[0101] In further embodiments of the present application, the third surrounding plate 23 is formed with a drain opening 231, and the drain opening 231 communicates the second air duct 1012 and the compressor cavity 302, and the water located in the second air duct 1012 can be drained out through the drain opening 231, so as to avoid the water and other pollutants from staying in the second air duct 1012.

[0102] It can be understood that the setting position of the drain port 231 in the third baffle plate 23 can be designed according to the drainage requirement, and the drain port 231 is preferably arranged on the side of the third baffle plate 23 to which the water flow is guided. Since the inner bottom wall formed by the third baffle plate 23 is arranged to be inclined downward, the water located in the second air duct 1012 is difficult to stay on the third baffle plate 23, and under the action of gravity, the third baffle plate 23 can guide the water to the drain port 231, so as to facilitate the water in the second air duct 1012 to be drained out from the drain port 231. If there is rainwater or other pollutants in the electric control box 10, the electric control assembly 1 will be in a humid environment, which can cause rust and other problems at the electric control assembly 1 (such as the soldering position).

[0103] In some embodiments of the present application, the box assembly 2 comprises a fifth baffle plate 25, a sixth baffle plate 26 and a seventh baffle plate 27, the fifth baffle plate 25 and the sixth baffle plate 26 are oppositely and spacedly arranged in the first direction, and the seventh baffle plate 27 is connected between the fifth baffle plate 25 and the sixth baffle plate 26, and the seventh baffle plate 27 is oppositely arranged with the PCB plate 11 in the second direction.

[0104] Among them, the first installation cavity 2021 open to the side of the PCB plate 11 is formed by surrounding the fifth baffle plate 25, the sixth baffle plate 26 and the seventh baffle plate 27. After the PCB plate 11 is installed and matched with the box assembly 2, the PCB plate 11 can block the open side of the first air duct 1011 to limit the air flow path in the first air duct 1011.

[0105] It can be understood that the first installation cavity 2021 open to the side of the PCB plate 11 is formed by surrounding the fifth baffle plate 25, the sixth baffle plate 26 and the seventh baffle plate 27, and an opening structure suitable for arranging the electrical device 12 on the PCB plate 11 is formed at the first installation cavity 2021, so as to facilitate the electrical device 12 on the PCB plate 11 to extend from the open side of the first installation cavity 2021 (i.e. the side opposite to the seventh baffle plate 27).

[0106] As shown in Figure 17 In some embodiments of the present application, the box assembly 2 further comprises a support plate segment 28 connected between the fifth baffle plate 25 and the sixth baffle plate 26, so as to support the fifth baffle plate 25 and the sixth baffle plate 26 in the vertical direction by the support plate segment 28, and improve the structural strength of the box assembly 2.

[0107] Referring to Figure 17As shown, the support plate segment 28 is arranged adjacent to the air outlet side of the first air duct 1011, and the support plate segment 28 can jointly define the first air outlet 10112 of the first air duct 1011 with the fifth surrounding plate 25, the sixth surrounding plate 26 and the seventh surrounding plate 27 to improve the structural strength of the box assembly 2 at the first air outlet 10112. At the same time, the support plate segment 28 can also avoid the electrical devices 12 arranged on the PCB board 11 to effectively prevent interference between the support plate segment 28 and the electrical devices 12, facilitating assembly of the electrical control assembly 1 and the box assembly 2.

[0108] With reference to Figure 16 In some embodiments of the present application, the first surrounding plate 21 and the fifth surrounding plate 25 are coplanar and integrally arranged, so that the space occupied by the box assembly 2 in the vertical direction can be saved, and the electrical control assembly 1 in the electrical control box 10 is arranged compactly.

[0109] It should be noted that the fifth surrounding plate 25 is arranged adjacent to one side of the sixth surrounding plate 26 in the vertical direction. That is, when the fifth surrounding plate 25 and the first surrounding plate 21 are integrally arranged, the sixth surrounding plate 26, the fifth surrounding plate 25 (also the first surrounding plate 21) and the third surrounding plate 23 are sequentially and spacedly arranged in the vertical direction.

[0110] It can be understood that the first surrounding plate 21 and the fifth surrounding plate 25 in the box assembly 2 are coplanar, so that the first surrounding plate 21 and the fifth surrounding plate 25 are constructed as the same partition structure, and the first air duct 1011 and the second air duct 1012 are separated by the partition structure, that is, the two side surfaces of the partition structure in the vertical direction are respectively directed to the first air duct 1011 and the second air duct 1012. The above arrangement of integrating the first surrounding plate 21 and the fifth surrounding plate 25 can reduce the number of plate structures when the box assembly 2 defines the first air duct 1011 and the second air duct 1012, and the first air duct 1011 and the second air duct 1012 are arranged adjacent to each other in the vertical direction, so that the devices (such as the heat sink 13, the capacitive device, the power device, etc.) on the PCB board 11 are arranged compactly, and the space utilization of the electrical control box 10 is improved.

[0111] With reference to Figure 16 In some embodiments of the present application, the first waterproof part 291 is constructed as a first louver, and the first louver can shield the first air outlet 10112 of the first air duct 1011 to prevent pollutants on the side of the fan cavity 301 from entering the first air duct 1011 through the first air outlet 10112 of the first air duct 1011, thereby protecting the electrical devices 12 arranged at the first air duct 1011.

[0112] With reference to Figure 18In some embodiments of this application, the second waterproof part 292 is constructed as a second louver. The second louver in the second louver can block the second air outlet 10122 of the second air duct 1012 to prevent pollutants on the fan cavity 301 side from entering the second air duct 1012 through the second air outlet 10122, thereby protecting the devices (such as electrical components 12, heat sinks 13, etc.) arranged in the second air duct 1012.

[0113] like Figure 4 As shown, in some embodiments of this application, the partition plate 40 is provided with a third louver 41 at the connecting hole 401, so as to block the connecting hole 401 through the louvers of the third louver 41, so as to prevent pollutants on the fan cavity 301 side from passing through the connecting hole 401 and entering the heat dissipation air duct 101, and to protect the electrical control box 10 arranged on the compressor cavity 302 side.

[0114] It is understandable that the third louver 41 also has a protective function. When the heat dissipation duct 101 is provided with the first louver and the second louver on the air outlet side and the third louver 41 is provided at the connecting hole 401, a multi-layer protective structure can be formed at the connection between the heat dissipation duct 101 and the fan cavity 301 to improve the waterproof effect at the connection between the heat dissipation duct 101 and the fan cavity 301.

[0115] like ​ As shown, in some embodiments of this application, the air inlet structure 311 is constructed as a fourth louver, which can protect the air inlet side of the heat dissipation duct 101 through the louvers of the fourth louver, so as to prevent contaminants outside the housing assembly 30 from directly entering the heat dissipation duct 101 through the air inlet structure 311, and thus protect the electrical control box 10.

[0116] In some embodiments of this application, panel 32 includes a first panel 321 and a second panel 322, which 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 fitted 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 housing assembly 30 and the partition plate 40, and also facilitates the inspection and maintenance of the devices in the fan cavity 202 and the compressor cavity 302.

[0117] It can be understood that when the electric control box 10 needs to be disassembled, only the second panel 322 needs to be disassembled, so that the compressor cavity 302 is opened on the side of the panel 32, and the electric control box 10 can be disassembled from the side of the panel 32 by the operator. Similarly, if the device (such as a fan, a heat exchanger, etc.) in the fan cavity 301 needs to be detected and maintained, the first panel 321 is disassembled, and the device in the fan cavity 202 is fully exposed from the side of the panel 32, which is convenient for the operator to operate.

[0118] The air conditioner outdoor unit 100 according to the embodiment of the present application has at least the following advantages:

[0119] (1) The electric control box 10 arranged in the compressor cavity 302 is formed with a heat dissipation air duct 101, and the air outlet side of the heat dissipation air duct 101 is communicated with the fan cavity 301, so that the air in the heat dissipation air duct 101 can be discharged to the side of the fan cavity 301 through the negative pressure formed on the side of the fan cavity 301, thereby realizing the air cooling heat dissipation of the electric control box 10, and at the communication position of the heat dissipation air duct 101 and the fan cavity 301, a protection structure (such as the louver structure described above) is arranged to improve the protection effect of the electric control box 10 and prevent rainwater and other pollutants from entering the electric control box 10 from the side of the fan cavity 301.

[0120] (2) A plurality of sub-air ducts are formed at the heat dissipation air duct 101, the sub-air duct (such as the first air duct 1011) can be communicated between the compressor cavity 302 and the fan cavity 301, and the sub-air duct (such as the second air duct 1012) can be communicated between the outside of the shell assembly 30 and the fan cavity 301, so that the electric control box 10 can be cooled through multiple flow paths, thereby improving the heat dissipation effect of the electric control box 10.

[0121] (3) The bottom of the box assembly 2 is provided with a drainage structure, and the water in the box assembly 2 (such as the second air duct 1012) can be discharged through the drainage structure, thereby preventing rainwater and other pollutants from being retained in the electric control box 10, and improving the reliability of the electric control box 10.

[0122] The air conditioner according to the embodiment of the present application comprises the above-mentioned air conditioner outdoor unit 100, and the advantages of the air conditioner and the air conditioner outdoor unit 100 are the same, and details are not repeated here.

[0123] In the description of the application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0124] In the description of the application, "first feature" and "second feature" can include one or more of the features.

[0125] In the description of the application, "a plurality of" means two or more.

[0126] In the description of the application, "above" or "below" the first feature of the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them.

[0127] In the description of the application, "above", "over" and "on" the first feature of the second feature includes that the first feature is directly above and obliquely above the second feature, or only means that the first feature is higher than the second feature in horizontal height.

[0128] In the description of the application, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the application. In the description of the application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0129] Although embodiments of the application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirit of the application, and the scope of the application is defined by the claims and their equivalents.

Claims

1. An air conditioner outdoor unit, characterized by comprising: The application relates to a shell assembly, an electric control box and a radiator. The shell assembly comprises a cavity, a partition plate is arranged in the cavity, the partition plate divides the cavity into a fan cavity and a compressor cavity arranged along a first direction, the partition plate is provided with a communication hole, and a first side plate opposite to the partition plate in the first direction is provided with an air inlet structure on the side of the compressor cavity. The electric control box is connected between the partition plate and the first side plate, and comprises a box assembly, a PCB and an electric device. The box assembly is provided with a heat dissipation air duct, the outflow side of the heat dissipation air duct is communicated with the communication hole, the inflow side of the heat dissipation air duct is communicated with at least one of the air inlet structure and the compressor cavity, and the outflow side of the heat dissipation air duct is provided with a waterproof structure. The waterproof structure comprises a first waterproof part and a second waterproof part.

2. The outdoor unit of claim 1, wherein The first air duct is provided with the first waterproof part at a first air outlet. The second air duct is arranged below the first air duct, and the second air duct is provided with the second waterproof part at a second air outlet. The first air inlet of the first air duct is communicated with the compressor cavity, and the first air outlet of the first air duct is communicated with the communication hole.

3. The air conditioner outdoor unit according to claim 2, characterized by The second air inlet of the second air duct is communicated with the air inlet structure, the second air outlet of the second air duct is communicated with the communication hole, and the radiator is arranged in the second air duct. The box assembly is provided with a mounting cavity arranged along the first direction and a communication cavity, the mounting cavity is arranged on the side of the box assembly close to the partition plate, the communication cavity is arranged on the side of the box assembly close to the first side plate, one end of the communication cavity is communicated with part of the mounting cavity, and the other end of the communication cavity is communicated with the air inlet structure and separates the mounting cavity and the air inlet structure in the first direction.

4. The air conditioner outdoor unit according to claim 2, wherein The inner bottom wall of the communication cavity gradually rises from the side close to the first side plate to the side of the mounting cavity.

5. The air conditioner outdoor unit according to claim 4, wherein The cross-sectional dimension of the communication cavity in the first direction gradually decreases from the air inlet structure to the side of the mounting cavity. The mounting cavity comprises a first mounting cavity and a second mounting cavity arranged along a vertical direction, the first mounting cavity forms the first air duct, and the second mounting cavity forms the second air duct together with the communication cavity.

6. The air conditioner outdoor unit according to claim 4, wherein The first mounting cavity and the second mounting cavity are respectively arranged open to the same side of a second direction, the electric control box comprises a PCB, the PCB is arranged vertically on the open side of the first mounting cavity and the second mounting cavity, and the radiator is arranged on the side opposite to the second mounting cavity of the PCB.

7. The air conditioner outdoor unit according to claim 6, characterized in that, The electric control box further comprises an electric device, the electric device is arranged on the side opposite to the mounting cavity of the PCB, and the height position of the electric device is not lower than the bottom of the radiator.

8. The air conditioner outdoor unit according to claim 7, characterized in that, The radiator comprises a heat dissipation substrate connected with the PCB.

9. The air conditioner outdoor unit according to claim 7, wherein ​ ​ A plurality of fins are arranged on the side of the heat dissipation substrate away from the PCB, and a heat dissipation flow channel is formed between any two adjacent fins, and the extension direction of the heat dissipation flow channel is parallel to the first direction.

10. The air conditioner outdoor unit according to claim 6, wherein The box assembly comprises: A first surrounding plate and a third surrounding plate are oppositely and spacedly arranged in the vertical direction; A second surrounding plate and a fourth surrounding plate are oppositely and spacedly arranged in the second direction, and the first surrounding plate, the second surrounding plate, the third surrounding plate and the fourth surrounding plate surround the second air duct; The second direction is perpendicular to the vertical direction.

11. The air conditioner outdoor unit according to claim 10, wherein The first surrounding plate is arranged above the third surrounding plate, and the side wall surface of the third surrounding plate opposite to the first surrounding plate is an inner bottom wall of the second air duct, and the inner bottom wall extends upward or downward from the side of the second surrounding plate to the side of the fourth surrounding plate. 12.The outdoor unit of claim 11, wherein A drainage port is formed at the third surrounding plate, and the drainage port communicates the second air duct and the compressor cavity. 13.The outdoor unit of claim 10, wherein The box assembly comprises: A fifth surrounding plate and a sixth surrounding plate are spacedly arranged in the vertical direction; A seventh surrounding plate is arranged in the vertical direction and connected between the fifth surrounding plate and the sixth surrounding plate, and the fifth surrounding plate, the sixth surrounding plate and the seventh surrounding plate surround the first mounting cavity.

14. The air conditioner outdoor unit according to claim 2, wherein The first waterproof part is configured as a first louver; And / or, the second waterproof part is configured as a second louver; And / or, the partition plate is provided with a third louver at the communication hole.

15. An air conditioner characterized by comprising: An air conditioner outdoor unit comprising any one of the air conditioner outdoor units according to claims 1-14.

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