CN223484376U - Air conditioner external unit and air conditioner - Google Patents

Abstract

The application discloses an air conditioner external unit and an air conditioner, wherein the air conditioner external unit comprises a shell component, an electric control box and a box component, wherein the shell component is provided with a cavity, a middle partition plate is arranged in the cavity, the middle partition plate is formed into a fan cavity and a compressor cavity, the middle partition plate is provided with a communication hole for communicating the fan cavity with the compressor cavity, the middle partition plate is provided with a first shutter at the communication hole, the electric control box is arranged in the compressor cavity and is provided with a heat dissipation air duct, an electric device is arranged in the heat dissipation air duct, the air outlet end of the heat dissipation air duct is communicated with the communication hole, and the box component is provided with a second shutter at the air outlet end of the heat dissipation air duct. From this, automatically controlled box department can realize the circulation of air through the negative pressure that fan chamber one side produced to dispel the heat and cool down through the mode of forced air cooling, and first shutter and second shutter can form multiple protective structure in automatically controlled box and the cooperation position of intercommunicating pore, in order to prevent pollutant such as rainwater and get into automatically controlled box through intercommunicating pore department, promote automatically controlled box's security and reliability.

Description

Air conditioner external unit and air conditioner

Technical Field

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

Background

At present, the air conditioner external unit is applied to an outdoor environment, an electric control box is arranged in the air conditioner external unit, and the electric control box can radiate heat in an air cooling mode, namely, the electric control box is in an unsealed state.

In the related art, when the outdoor environment is severely regulated, such as typhoons, rainfall and other bad weather, the rainwater enters the electric control box and is sputtered on the circuit board, so that the problems of short circuit, ignition and the like are easily caused, and potential safety hazards exist.

Disclosure of utility model

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

The application also provides an air conditioner.

The air conditioner external unit comprises a shell assembly, an electric control box and a box assembly, wherein the shell assembly is provided with a cavity, a middle partition plate is arranged in the cavity, the middle partition plate is used for partitioning the cavity to form a fan cavity and a compressor cavity, a communication hole for communicating the fan cavity with the compressor cavity is formed in the middle partition plate, a first shutter is arranged at the communication hole of the middle partition plate, the electric control box is arranged in the compressor cavity and is provided with a heat dissipation air duct, an electric device is arranged in the heat dissipation air duct, the air outlet end of the heat dissipation air duct is communicated with the communication hole, and a second shutter is arranged at the air outlet end of the heat dissipation air duct of the box assembly.

According to the application, air circulation can be realized at the electric control box through negative pressure formed at the fan cavity so as to realize air cooling and heat dissipation, the first shutter and the second shutter are respectively arranged at the matching position of the communication hole and the air outlet end of the heat dissipation air duct, and the first shutter and the second shutter can form a multiple protection structure at the matching position of the electric control box and the communication hole so as to prevent pollutants such as rainwater from entering the electric control box through the communication hole, thereby improving the safety and reliability of the electric control box.

According to some embodiments of the application, the electric control box comprises a box assembly and a PCB, wherein the box assembly is provided with a mounting cavity which is open to one side, the PCB is vertically arranged at the open end of the mounting cavity and is limited with the box assembly to form the heat dissipation air duct, and the PCB is connected and matched with the electric device.

According to some embodiments of the application, the second louver has second blades, the second blades are vertically disposed, and the second blades extend from the air outlet end to a side of the heat dissipation air duct, which is far away from the PCB, and form a second window that is open to a side far away from the PCB.

According to some embodiments of the application, the second shutter is provided with a rib, and the rib is arranged on one side of the second blade adjacent to the PCB board and is used for shielding the electric device.

According to some embodiments of the application, the second blades are a plurality of, the rib is connected between two adjacent second blades, and/or the rib is connected between the second blades and the wall surface of the heat dissipation air duct.

According to some embodiments of the application, the first louver has first vanes disposed in a lateral direction, and the first vanes extend obliquely downward from a side adjacent to the compressor chamber to a side of the fan chamber.

According to some embodiments of the application, the plane of the first blade intersects the plane of the second blade.

According to some embodiments of the application, the box assembly comprises a first enclosing plate and a third enclosing plate, wherein the first enclosing plate and the third enclosing plate are opposite and are arranged at intervals in the vertical direction, a second enclosing plate is connected between the first enclosing plate and the third enclosing plate, the first enclosing plate, the second enclosing plate and the third enclosing plate enclose the mounting cavity, and the mounting cavity is opened to one side of the PCB.

According to some embodiments of the application, the first coaming is disposed below the third coaming, and the first coaming extends obliquely downward from an end adjacent to the PCB to a side away from the PCB.

According to some embodiments of the application, the angle between the first coaming and the horizontal direction is alpha, and the relation is 2 degrees less than or equal to alpha less than or equal to 8 degrees.

According to some embodiments of the application, the first coaming is arranged below the third coaming, a water blocking rib is arranged on the surface of one side of the first coaming opposite to the third coaming, and the water blocking rib is arranged adjacent to the PCB.

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

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

Drawings

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

Fig. 1 is a schematic view of an external air conditioner according to an embodiment of the present application;

fig. 2 is a schematic diagram of a second embodiment of an air conditioner outdoor unit according to the present application;

Fig. 3 is an exploded view of an air conditioner external unit according to an embodiment of the present application;

Fig. 4 is a schematic structural view of an electronic control box according to an embodiment of the present application;

Fig. 5 is a schematic diagram of a second embodiment of an electronic control box according to the present application;

fig. 6 is an exploded view of an electronic control box according to an embodiment of the present application;

FIG. 7 is a schematic view of a cartridge assembly according to one embodiment of the application;

FIG. 8 is a schematic diagram II of a cartridge assembly according to one embodiment of the application;

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

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

FIG. 11 is a front view of a cartridge assembly according to one embodiment of the application;

FIG. 12 is a schematic cross-sectional view taken along line A-A of FIG. 11;

FIG. 13 is a schematic cross-sectional view taken along line B-B of FIG. 11;

fig. 14 is a schematic view of a structure of a middle separator according to an embodiment of the present application.

Reference numerals:

an air conditioner outdoor unit 100;

The electric control box 1, the heat radiation air flue 101, the heat exchange air flue 102, the PCB 11, the electric device 12, the box assembly 13, the first enclosing plate 131, the water retaining rib 1311, the first water retaining segment 13111, the second water retaining segment 13112, the second enclosing plate 132, the third enclosing plate 133, the fourth enclosing plate 134, the fifth enclosing plate 135, the sixth enclosing plate 136, the seventh enclosing plate 137, the second louver 14, the second blade 141, the water retaining rib 142, the radiator 15, the heat radiation substrate 151, the radiating fin 152 and the radiator support 16;

Shell assembly 2, fan chamber 201, compressor chamber 202, first side plate 212, air intake structure 2121, panel 22, first panel 221, second panel 222;

The middle partition plate 3, the communication hole 301, the first louver 31, and the first vane 311.

Detailed Description

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

An air conditioner outdoor unit 100 according to an embodiment of the present application will be described below with reference to fig. 1 to 14, and the air conditioner outdoor unit 100 is applied to an outdoor environment.

The air conditioner external unit 100 according to the embodiment of the present application includes a case assembly 2 and an electronic control box 1.

Referring to fig. 2, the shell assembly 2 has a chamber in which a middle partition plate 3 is provided, the middle partition plate 3 partitions the chamber to form a blower chamber 201 and a compressor chamber 202 which are adjacently arranged, the middle partition plate 3 is formed with a communication hole 301, the communication hole 301 is provided through the middle partition plate 3 in a thickness direction, and the communication hole 301 can be used to communicate the blower chamber 201 with the compressor chamber 202 so that air on the side of the compressor chamber 202 can flow into the side of the blower chamber 201 through the communication hole 301.

Referring to fig. 13, the middle partition plate 3 is provided with a first shutter 31 at the communication hole 301 to shield the communication hole 301 by the first shutter 31, and the first shutter 31 can protect the communication hole 301 to prevent the pollutants (such as rainwater) on one side of the fan cavity 201 from entering the compressor cavity 202 through the communication hole 301 and being sputtered onto the electric device 12 of the electric control box 1, thereby improving the protection effect on the electric control box 1.

As shown in fig. 4, 5 and 6, the electronic control box 1 is provided with a heat dissipation air channel 101, an electric device 12 is arranged in the heat dissipation air channel 101, and air flowing through the heat dissipation air channel 101 can transfer heat at the electric device 12 to the outer side of the electronic control box 1 so as to realize heat dissipation and temperature reduction at the electric device 12.

The air outlet end of the heat dissipation air duct 101 is communicated with the communication hole 301, so that air in the heat dissipation air duct 101 can be discharged to one side of the fan cavity 201 through the communication hole 301. Meanwhile, the box assembly 13 is provided with the second louver 14 at the air outlet end of the heat dissipation air duct 101, and the second louver 14 can play a role in shielding the air outlet end of the heat dissipation air duct 101, so that pollutants (such as rainwater and the like) outside the electric control box 1 can be prevented from entering the electric control box 1 from the air outlet end of the heat dissipation air duct 101, the electric devices 12 in the electric control box 1 are protected, and the safety and reliability of the electric control box 1 are improved.

It will be appreciated that the air inlet end of the heat dissipation air duct 101 is used for air inflow to supplement air into the heat dissipation air duct 101. The air inlet end of the heat dissipation air channel 101 may be communicated with the compressor cavity 202, and the air inlet end of the heat dissipation air channel 101 may also be communicated with the outside of the shell assembly 2. When the air inlet end of the cooling air duct 101 is communicated with the compressor chamber 202, air in the compressor chamber 202 can enter the cooling air duct 101, and the compressor chamber 202 can be communicated with the outside of the shell assembly 2 to supplement air into the compressor chamber 202 through the outside of the air conditioner external unit 100, and when the air inlet end of the cooling air duct 101 is communicated with the outside of the shell assembly 2, air outside the air conditioner external unit 100 can directly enter the cooling air duct 101.

The fan chamber 201 is used for arranging a fan, a heat exchanger, and other devices, and the compressor chamber 202 is used for arranging a compressor, a pipeline, an electric control box 1, and other devices. In the application, the electric control box 1 is arranged in the compressor cavity 202, so that the electric control box 1 can be prevented from interfering with equipment such as a fan and the like, and the ventilation effect on one side of the fan cavity 201 is ensured.

When the fan is in an operating state, fast flowing air flow can be formed in the fan cavity 201, negative pressure can be formed on one side, facing the fan cavity 201, of the middle partition plate 3 under the action of the air flow, and air in the heat dissipation air duct 101 communicated with one side of the fan cavity 201 through the communication hole 301 can flow to one side of the fan cavity 201 under the action of the negative pressure, so that heat at the electric device 12 is transferred to one side of the fan cavity 201 through the air, and heat dissipation and cooling at the electric device 12 are realized through an air cooling mode.

Therefore, the air conditioner external unit 100 in the application forms negative pressure on one side of the fan cavity 201 of the middle partition plate 3 so as to pump air in the heat dissipation air duct 101 to one side of the fan cavity 201 through the communication hole 301, thereby transferring heat at the electric control box 1 to one side of the fan cavity 201 and dissipating heat and cooling the electric devices 12 in the electric control box 1. Meanwhile, by matching the first louver 31 and the second louver 14, a double protection structure is formed at the air outlet end of the heat dissipation air duct 101 and the communication hole 301, so that pollutants (such as rainwater and the like) on one side of the fan cavity 201 can be prevented from entering the electric control box 1 under the drive of air flow, the protection effect of the electric control box 1 is improved, and the stability and reliability of the electric control box 1 during operation are improved.

At present, the air conditioner outdoor unit 100 is applied to an outdoor environment, the electric control box 1 is arranged in the air conditioner outdoor unit 100, and the electric control box 1 can radiate heat in an air cooling mode, namely, the electric control box 1 is in an unsealed state. In the related art, when the outdoor environment is severely regulated, such as typhoons, rainfall and other bad weather, the rainwater enters the electric control box 1 and is sputtered on a circuit board, so that the problems of short circuit, ignition and the like are easily caused, and potential safety hazards exist.

Wherein, the electric device 12 can be directly exposed and arranged in the heat dissipation air duct 101, when air flows through the heat dissipation air duct 101, the air can exchange heat with the electric device 12 to take away the heat of the electric device 12, so as to realize heat dissipation and temperature reduction of the electric device 12. Since the electric device 12 is directly exposed in the heat dissipation air duct 101, if contaminants such as rainwater enter the electric control box 1, there is a risk of sputtering on the electric device 12, and problems such as short circuit and ignition are easily caused.

It should be noted that, in the air conditioner external unit 100, the fan chamber 201 is generally configured to be communicated with the outside of the shell assembly 2, and air outside the air conditioner external unit 100 may enter the fan chamber 201 from the shell assembly 2 and be discharged under the action of the fan after exchanging heat with the heat exchanger at the fan chamber 201, so that contaminants such as rainwater mixed in outdoor air may enter the fan chamber 201 together with air, thereby causing a risk that air mixed with rainwater enters the electronic control box 1 through the communication hole 301 under the driving of the fan, and having a safety hazard.

In the application, air circulation can be realized at the electric control box 1 through negative pressure formed at the fan cavity 201 to realize air cooling and heat dissipation, and a first louver 31 and a second louver 14 are respectively arranged at the matching position of the communication hole 301 and the air outlet end of the heat dissipation air duct 101, and the first louver 31 and the second louver 14 can form a multiple protection structure at the matching position of the electric control box 1 and the communication hole 301 so as to prevent pollutants such as rainwater from entering the electric control box 1 through the communication hole 301 and improve the safety and reliability of the electric control box 1.

In some embodiments of the present application, the electronic control box 1 includes a box assembly 13 and a PCB board 11, the box assembly 13 is formed with a mounting cavity opened to one side, the PCB board 11 is vertically disposed at an open end of the mounting cavity, and the PCB board 11 cooperates with the box assembly 13 and defines a heat dissipation air duct 101, and the PCB board 11 is a mounting carrier for the electrical device 12, the electrical device 12 may be disposed on the PCB board 11, and the electrical device 12 is disposed on a surface of the PCB board 11 opposite to the heat dissipation air duct 101. Thus, when the heat dissipation duct 101 is defined by the PCB 11 in cooperation with the electronic control box 1, the electric device 12 disposed on the PCB 11 may be placed in the heat dissipation duct 101.

It should be noted that, the above-mentioned "vertical" refers to the position of the electric control box 1 when assembled in the air conditioner outdoor unit 100, the vertically arranged PCB 11 is inconvenient for rainwater to adhere, even if there are pollutants such as rainwater splashed onto the PCB 11, the water drops can also slide down rapidly under the action of gravity, so as to avoid the risk of short circuit, fire striking and the like at the position of the PCB 11 due to the long-time adhesion of the water drops on the PCB 11.

As shown in connection with fig. 8, 9 and 11, in some embodiments of the present application, the second louver 14 has second blades 141, the second blades 141 are disposed vertically, and the second blades 141 extend from the air outlet end to a side of the air intake side of the heat dissipation duct 101 away from the PCB 11, thereby forming a second window that is disposed open to a side away from the PCB 11.

Referring to fig. 12, the second louver 14 may include a plurality of second vanes 141, and the second window may be defined by two adjacently disposed second vanes 141 together. The second blades 141 extend from the air outlet end to the inner side of the heat dissipation air duct 101, and the second blades 141 are obliquely arranged at a side far away from the PCB 11 in the extending direction, so that the second window is opened at a side far away from the PCB 11. That is, even if water drops enter the heat dissipation air duct 101 through the second louver 14, the water drops will be shot onto the side wall plate structure (i.e. the second wall plate 132 shown in the drawing) opposite to the PCB 11 in the box assembly 13, so as to avoid the water drops from being shot onto the PCB 11, and improve the protection effect on the PCB 11.

It can be understood that the electrical device 12 is disposed on a surface of the PCB 11 facing the heat dissipation air duct 101 in an electrical connection manner, and if water drops are directed to one side of the PCB 11, the water drops are directed to a surface of the PCB 11, which is in connection with the electrical device 12, so that faults such as short circuit and ignition are easily caused.

In the application, as the PCB 11 is vertically arranged, the vertically arranged second blades 141 can form a second window which is open to one side far away from the PCB 11, so that water drops entering the heat dissipation air duct 101 through the second window can be prevented from directly radiating to the PCB 11 while the air outlet effect of the heat dissipation air duct 101 is ensured, and the protection effect on the PCB 11 and the electric devices 12 in the electric control box 1 is improved.

As shown in fig. 12, in some embodiments of the present application, the second louver 14 is provided with a rib 142, and the rib 142 is disposed on a side of the second blade 141 adjacent to the PCB 11, and the rib 142 is used to shield the electrical device 12, so as to improve the protection effect on the electrical device 12, and prevent water drops entering the heat dissipation air duct 101 through the second window from being directed to the electrical device 12.

In a further embodiment of the present application, the plurality of second blades 141 are provided, the rib 142 is connected between two second blades 141 disposed adjacently, and the rib 142 can play a role in shielding the gap between two second blades 141, so as to improve the protection effect of the second shutter 14 on the air outlet end of the heat dissipation air duct 101. Meanwhile, the rib 142 can support the two second blades 141, so that the structural strength of the second blades 141 is improved, the local deformation resistance of the second blades 141 is improved, and the protection effect of the second shutter 14 is ensured.

In some embodiments of the present application, the rib 142 is connected between the second vane 141 and the wall surface of the heat dissipation air duct 101 to be supported between the wall surface of the heat dissipation air duct 101 and the second vane 141 through the rib 142, and structural strength at the second vane 141 is improved, thereby improving deformation resistance of the second vane 141.

It will be appreciated that a plurality of ribs 142 may be disposed at the second louver 14, the ribs 142 may be connected between two second blades 141 disposed adjacently, and the ribs 142 may also be connected between the second blades 141 and the wall surface of the heat dissipation air duct 101, so as to correspondingly set the positions and connection modes of the ribs 142 according to the position arrangement requirement of the second blades 141 and the shielding requirement of the electric device 12 in the heat dissipation air duct 101.

As shown in fig. 14, in some embodiments of the present application, the first louver 31 has the first blades, and the first blades are disposed in a lateral direction, and the first blades extend obliquely downward from a side adjacent to the compressor chamber 202 toward the fan chamber 201 side, thereby forming a first window opened obliquely downward toward the fan chamber 201 side, increasing difficulty of rainwater on the fan chamber 201 side entering toward the fan chamber 201 side through the communication hole 301, and improving a protective effect at the communication hole 301.

Referring to fig. 14, the first louver 31 has a plurality of first blades sequentially spaced apart from each other in the vertical direction at the communication hole 301, and air discharged to one side of the fan chamber 201 from the cooling air duct 101 can pass through between two adjacently arranged first blades, ensuring an air discharge effect at the cooling air duct 101.

It will be appreciated that the first window may be defined by two first blades disposed adjacently together with the frame of the first louver 31, so as to form a plurality of ventilation structures at the first louver 31 through the plurality of first blades, so as to promote the shielding effect of the first louver 31 on the communication hole 301 while guaranteeing the air passing effect of the ventilation hole, and prevent contaminants such as rainwater on one side of the fan cavity 201 from entering the heat dissipation air duct 101 through the communication hole 301.

In some embodiments of the present application, the plane of the first blade and the plane of the second blade 141 are intersected, that is, any one of the first blades and the second blades 141 is not parallel or coplanar with any one of the second blades 141, so that the difficulty of water drops on one side of the fan cavity 201 entering the heat dissipation air duct 101 through the communication hole 301 can be increased, and the protection effect of the first blades and the second blades 141 on the position where the air outlet end of the heat dissipation air duct 101 is matched with the communication hole 301 is improved.

It should be noted that, the inclination angle and the arrangement position of the first blade at the communication hole 301, and the inclination angle and the arrangement position of the second blade 141 at the air outlet end of the cooling air duct 101 may be designed according to the protection requirement of the electronic control box 1 at the position matched with the communication hole 301.

In a preferred embodiment of the present application, the plane of the first vane is perpendicular to the plane of the second vane 141, so that the protection effect of the first louver 31 and the second louver 14 on the matching position of the air outlet end and the communication hole 301 of the heat dissipation air duct 101 can be fully improved.

As shown in fig. 9 and 10, in some embodiments of the application, the cartridge assembly 13 includes a first enclosure plate 131, a second enclosure plate 132, and a third enclosure plate 133.

Wherein, first bounding wall 131 and third bounding wall 133 are relative and the interval sets up in vertical direction, and second bounding wall 132 connects between first bounding wall 131 and third bounding wall 133, and first bounding wall 131, second bounding wall 132 and third bounding wall 133 are around forming the installation cavity moreover, and the installation cavity is opened to PCB board 11 one side and is set up.

When the PCB 11 is mounted in engagement with the box assembly 13, the PCB 11 is disposed opposite and spaced from the second enclosure 132, and the electrical device 12 is disposed on a side surface of the PCB 11 disposed opposite the second enclosure 132 to dispose the electrical device 12 within the heat dissipation tunnel 101 defined by the PCB 11 and the enclosure structures (i.e., the first enclosure 131, the second enclosure 132, and the third enclosure 133 described above).

In a further embodiment of the present application, the first enclosing plate 131 is disposed below the third enclosing plate 133, and the first enclosing plate 131 extends from one end adjacent to the PCB 11 to a side far from the PCB 11 in a downward inclined manner, so that the first enclosing plate 131 can guide water drops to a side far from the PCB 11 to prevent the water drops from contacting the PCB 11 or the electric devices 12 disposed on the PCB 11, thereby improving the protection effect on the PCB 11 and the electric devices 12 disposed on the PCB 11.

It will be appreciated that when water enters the heat dissipation air duct 101, the water will flow downwards to the first enclosing plate 131 under the action of gravity, and the first enclosing plate 131 is inclined relative to the horizontal direction, so that the water can be guided to the outer side of the heat dissipation air duct 101 by the first enclosing plate 131, so as to prevent the water from being retained in the heat dissipation air duct 101.

Wherein, first bounding wall 131 forms the interior bottom wall of heat dissipation wind channel 101 to first bounding wall 131 is to keeping away from PCB board 11 one side slope downwardly extending, thereby is directed to keeping away from PCB board 11 one side with water, avoids water flow direction PCB board 11, guarantees the drainage effect of heat dissipation wind channel 101 department.

In a further embodiment of the present application, the angle between the first coaming 131 and the horizontal direction is α, and the relation of 2≤α≤8 is satisfied. When the inclination angle between the first coaming 131 and the horizontal direction satisfies the above relationship, the guiding effect of the first coaming 131 on the water flow can be ensured, so that the water in the heat dissipation air duct 101 can be conveniently discharged.

As shown in fig. 7 and 8, in some embodiments of the present application, the first enclosing plate 131 is disposed under the third enclosing plate 133, and a water blocking rib 1311 is disposed on a surface of the first enclosing plate 131 opposite to the third enclosing plate 133, and the water blocking rib 1311 on the first enclosing plate 131 is disposed adjacent to the PCB 11 to limit water flowing to the PCB 11 through the water blocking rib 1311, thereby protecting the PCB 11.

Referring to fig. 7, the water blocking rib 1311 is disposed corresponding to the PCB board 11 in the vertical direction, and the water blocking rib 1311 is disposed at the bottom of the heat dissipation duct 101 (i.e., on the first coaming plate 131). When the water drops adhere to the first enclosing plate 131, the water blocking ribs 1311 can prevent the water drops from flowing to the PCB 11 under the driving of the air flow (i.e. the air flowing through the heat dissipation air duct 101), so as to improve the protection effect on the PCB 11.

As shown in fig. 7, in a further embodiment of the present 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 disposed at one end of the first shroud 131 adjacent to the PCB board 11, and the first water blocking section 13111 is disposed along the extending direction of the cooling air duct 101, and 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 shroud 131 (i.e., the arrangement direction of the second shroud 132 and the PCB board 11), so as to guide the water on the first shroud 131 to the outside of the cooling air duct 101 through 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 the electrical device 12 in the electronic control box 1.

As shown in connection with fig. 9 and 10, in some embodiments of the application, the cassette assembly 13 further includes a fourth shroud 134, a fifth shroud 135, a sixth shroud 136, and a seventh shroud 137.

The fifth enclosing plate 135 and the seventh enclosing plate 137 are oppositely arranged in the vertical direction, the fourth enclosing plate 134 and the sixth enclosing plate 136 are oppositely arranged and connected between the fifth enclosing plate 135 and the seventh enclosing plate 137, the fourth enclosing plate 134, the fifth enclosing plate 135, the sixth enclosing plate 136 and the seventh enclosing plate 137 surround a heat exchange air duct 102 which is formed to be opened to one side of the PCB 11, the PCB 11 can shield the opening of the heat exchange air duct 102, and the electric device 12 arranged on the PCB 11 can extend into the heat exchange air duct 102 through the opening of the heat exchange air duct 102, so that heat in the heat exchange air duct 102 is outwards transferred through air flowing through the heat exchange air duct 102, and heat dissipation and cooling of devices (such as the electric device 12, the radiator 15 and the like) in the electric control box 1 are realized.

It can be appreciated that the box assembly 13 can form the heat exchange air duct 102 independent from the heat dissipation air duct 101 by arranging the fourth enclosing board 134, the fifth enclosing board 135, the sixth enclosing board 136 and the seventh enclosing board 137, and the heat exchange air duct 102 can also be used for dissipating heat and reducing temperature of the electric device 12 arranged on the PCB board 11, so that two air flow paths are formed at the electric control box 1, so that heat at the electric control box 1 is transferred outwards through air flowing through the heat dissipation air duct 101 or the heat exchange air duct 102, and heat dissipation and reduction at the electric control box 1 are realized.

The heat dissipation air channel 101 and the heat exchange air channel 102 are mutually independent, that is, air in the heat dissipation air channel 101 and air in the heat exchange air channel 102 cannot flow in series, so that air circulation stability in the heat dissipation air channel 101 and the heat exchange air channel 102 can be ensured, and air (namely, air after heat exchange with devices) heated up can be prevented from flowing to other air channels to influence heat dissipation and cooling efficiency at the electronic control box 1.

It should be noted that, the number of the electrical devices 12 in the electrical control box 1 is plural, such as capacitive devices, inductive devices, power devices, etc., and the plurality of electrical devices 12 may be respectively arranged in the areas corresponding to the heat dissipation air duct 101 or the heat exchange air duct 102 in the PCB board 11, so that the heat dissipation and cooling efficiency of the electrical devices 12 in the electrical control box 1 is improved by arranging the electrical devices 12 in a partitioned manner so as to respectively dissipate heat and cool the electrical devices 12 through air flowing through the heat dissipation air duct 101 or the heat exchange air duct 102.

The arrangement positions of the electric devices 12 on the PCB 11 may be set according to the heat dissipation requirements of the electric devices 12, for example, the capacitive devices and the inductive devices in the electric devices 12 are arranged in the area corresponding to the heat dissipation air duct 101 in the PCB 11, and the power devices (such as bridge stacks and the like) in the electric devices 12 are arranged in the area corresponding to the heat exchange air duct 102 in the PCB 11.

In some embodiments of the present application, the electronic control box 1 further includes a heat sink 15 and a heat sink holder 16, the heat sink holder 16 is connected with the PCB board 11, and the heat sink holder 16 may be configured to be disposed around the electric device 12 corresponding to the heat exchanging channel 102 in a circumferential direction, and the heat sink holder 16 is used to mount the heat sink 15 to arrange the heat sink 15 in a fitting position adapted to exchange heat with the electric device 12, so that the electric device 12 corresponding to the heat exchanging channel 102 may transfer heat outwards through the heat sink 15. The heat radiator 15 has large contact area with air in the heat exchange air duct 102 and high heat exchange efficiency, so that the heat dissipation and cooling efficiency of the electric control box 1 at the heat exchange air duct 102 can be improved.

In some embodiments of the present application, the heat sink 15 includes a heat-dissipating substrate 151 and a heat-dissipating fin 152, the heat-dissipating substrate 151 is connected to the heat-dissipating bracket 16, and the heat-dissipating substrate 151 is used to exchange heat with the electric device 12, that is, heat at the electric device 12 can be transferred to the heat-dissipating substrate 151 side and further transferred to the heat-dissipating fin 152 side through the heat-dissipating substrate 151.

Further, the heat sink 152 is connected to a side of the heat sink 151 facing away from the PCB 11, and the heat sink 152 extends from the heat sink 151 to a side facing away from the PCB 11. The number of the fins 152 is plural, and the direction of each fin 152 is approximately the same as the air flowing direction in the heat exchange air duct 102, so as to reduce the resistance of the air flowing through the radiator 15 and ensure the circulation effect of the air flowing through the radiator 15. It can be appreciated that the radiator 15 has a plurality of fins 152, so that the contact area between the radiator 15 and the air in the cooling air duct 101 can be increased, and the heat dissipation efficiency of the radiator 15 can be improved by increasing the heat dissipation area.

In some embodiments of the present application, the heat exchange air duct 102 is connected between the middle partition 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 communicate the compressor chamber 202 with the outside of the shell assembly 2, when the electric control box 1 is connected and arranged between the middle partition 3 and the first side plate 212, the air inlet end of the heat exchange air duct 102 is communicated with the air inlet structure 2121, the air outlet end of the heat exchange air duct 102 can be communicated and matched with the communication hole 301, and air outside the shell assembly 2 can enter the heat exchange air duct 102 through the air inlet structure 2121 and be discharged to one side of the fan chamber 201 through the communication hole 301.

In some embodiments of the present application, the fifth enclosure plate 135 is disposed above the seventh enclosure plate 137, and the fifth enclosure plate 135 and the first enclosure plate 131 are coplanar and integrally disposed, so that space occupied by the box assembly 13 in the vertical direction can be saved, and the layout of the electric devices 12 disposed on the PCB board 11 in the electronic control box 1 can be made compact.

It will be appreciated that the fifth shroud 135 and the first shroud 131 in the box assembly 13 are arranged coplanar, so that the fifth shroud 135 and the first shroud 131 are integrally constructed as one and the same partition structure, and the heat dissipation air duct 101 and the heat exchange air duct 102 are partitioned by the partition structure, that is, two side surfaces of the partition structure in the vertical direction face the heat dissipation air duct 101 and the heat exchange air duct 102, respectively. The arrangement mode of integrating the fifth coaming 135 and the first coaming 131 can reduce the number of coaming structures of the box assembly 13 for defining the heat dissipation air duct 101 and the heat exchange air duct 102, and enable the heat dissipation air duct 101 and the heat exchange air duct 102 to be arranged in close proximity in the vertical direction, so that devices (such as a radiator 15, a capacitive device, a power device and the like) on the PCB 11 are arranged compactly, and the space utilization rate of the electric control box 1 is improved.

In some embodiments of the present application, the housing assembly 2 further comprises a panel 22, the panel 22 comprising a first panel 221 and a second panel 222, the first panel 221 and the second panel 222 being arranged and connected in sequence along the first direction. Wherein the adjacent parts of the first panel 221 and the second panel 222 are in connection and fit with the middle partition plate 3, that is, the first panel 221 is a member corresponding to the fan cavity 201 in the panel 22, and the second panel 222 is a member corresponding to the compressor cavity 202 in the panel 22, so that the assembly of the shell assembly 2 and the middle partition plate 3 is facilitated, and the detection and maintenance of the devices in the fan cavity 201 and the compressor cavity 202 are facilitated.

It will be appreciated that when the electronic control box 1 needs to be disassembled, the compressor chamber 202 can be opened on the side of the panel 22 only by disassembling the second panel 222, so that the operator can conveniently disassemble the electronic control box 1 from the side of the panel 22. Similarly, if the devices (such as a fan, a heat exchanger, etc.) in the fan cavity 201 need to be detected and maintained, the devices in the fan cavity 201 can be fully exposed from the side of the panel 22 after the first panel 221 is disassembled, so that the operation of operators is facilitated.

The air conditioner outdoor unit 100 according to the embodiment of the present application has at least the following advantages compared to the prior art:

(1) Negative pressure is formed on one side of a fan cavity 201 of the air conditioner external unit 100, the electric control box 1 arranged in the compressor cavity 202 can realize heat dissipation and temperature reduction in an air cooling mode, and the first louver 31 and the second louver 14 are respectively arranged at the communication hole 301 of the middle partition plate 3 and the air outlet end of the electric control box 1 so as to form multiple protection in a communication matching area of the electric control box 1 and the fan cavity 201, thereby preventing pollutants such as rainwater from entering the electric control box 1 from one side of the fan cavity 201.

(2) The bottom of the heat dissipation air duct 101 forms a drainage structure through the first coaming 131 so as to drain water in the heat dissipation air duct 101, prevent pollutants such as rainwater and the like from being detained in the heat dissipation air duct 101, and improve the safety of the electric control box 1.

(3) The water retaining ribs 1311 are arranged at the first enclosing plate 131 to prevent water at the first enclosing plate 131 from flowing to one side of the PCB 11, and the protection effect on the PCB 11 is improved.

The air conditioner according to the embodiment of the present application includes the air conditioner external unit 100 described above.

The air conditioner according to the embodiment of the present application has the same advantages as the air conditioner outdoor unit 100 compared with the prior art, and is not described herein.

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

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

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

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

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

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

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

Claims (12)

1. An air conditioner outdoor unit, comprising: A shell assembly, the shell assembly having a cavity, a middle partition plate provided in the cavity, the middle partition plate dividing the cavity into a fan cavity and a compressor cavity, the middle partition plate forming a communication hole connecting the fan cavity and the compressor cavity, and the middle partition plate having a first louver provided at the communication hole; An electric control box is arranged in the compressor cavity and has a heat dissipation air duct. Electrical components are arranged in the heat dissipation air duct, and the air outlet end of the heat dissipation air duct is connected to the connecting hole. The electric control box is provided with a second louver at the air outlet end of the heat dissipation air duct. 2. The air conditioner outdoor unit according to claim 1, wherein the electric control box comprises: a box assembly, wherein the box assembly is formed with a mounting cavity open to one side; A PCB board is vertically arranged at the open end of the installation cavity and defines the heat dissipation duct with the box assembly, and the PCB board is connected and matched with the electrical component. 3. The air conditioner outdoor unit according to claim 2, characterized in that the second louver has a second blade, the second blade is arranged vertically, and the second blade extends from the air outlet end toward the air inlet side of the heat dissipation duct away from the PCB board, and forms a second window open to the side away from the PCB board. 4. The air conditioner outdoor unit according to claim 3, wherein the second louver is provided with a blocking rib, and the blocking rib is provided on a side of the second blade adjacent to the PCB board and is used to shield the electrical component. 5. The air conditioner outdoor unit according to claim 4, wherein the second blades are multiple, and the retaining rib is connected between two adjacent second blades; And/or, the blocking rib is connected between the second blade and the wall surface of the heat dissipation duct. 6. The air conditioner outdoor unit according to claim 3, wherein the first louver has a first blade, the first blade is arranged in a transverse direction, and the first blade extends obliquely downward from a side adjacent to the compressor chamber to a side of the fan chamber. 7 . The air conditioner outdoor unit according to claim 6 , wherein the plane where the first blade is located intersects with the plane where the second blade is located. 8. The air conditioner outdoor unit according to claim 2, wherein the box assembly comprises: A first enclosing plate and a third enclosing plate, wherein the first enclosing plate and the third enclosing plate are arranged opposite to each other and spaced apart in a vertical direction; The second enclosure is connected between the first enclosure and the third enclosure, and the first enclosure, the second enclosure and the third enclosure surround to form the installation cavity, and the installation cavity is open to one side of the PCB board. 9. The air conditioner outdoor unit according to claim 8, wherein the first enclosing plate is provided below the third enclosing plate, and the first enclosing plate extends downwardly and obliquely from an end adjacent to the PCB board to a side away from the PCB board. 10 . The air conditioner outdoor unit according to claim 9 , wherein the angle between the first enclosure and the horizontal direction is α, and satisfies the relationship: 2°≤α≤8°. 11. The air conditioner outdoor unit according to claim 8, wherein the first enclosure is arranged below the third enclosure, a water retaining rib is provided on a surface of the first enclosure opposite to the third enclosure, and the water retaining rib is arranged adjacent to the PCB board. 12. An air conditioner, comprising the air conditioner outdoor unit according to any one of claims 1 to 11.