Air conditioner outdoor unit

Abstract

The utility model discloses an air conditioner outdoor unit, and belongs to the technical field of air conditioners. The air conditioner outdoor unit comprises a machine shell, a heat exchanger, a draught fan, a compressor, an electric control box, a radiator, an air duct piece and a cooling fan. A first cavity and a second cavity are defined and formed in the machine shell; the first chamber and the second chamber are arranged independently; the heat exchanger and the fan are arranged in the first cavity, and the fan is located on the leeward side of the heat exchanger; the compressor is arranged in the second chamber; the electric control box is arranged in the machine shell. An electric control board is arranged in the electric control box and is configured to control the fan and the compressor to operate; the radiator is arranged in the second cavity, and the leeward side of the radiator is close to the electric control board; the air duct piece is arranged in the machine shell, a heat dissipation channel is defined by the air duct piece, an air inlet of the heat dissipation channel communicates with the exterior of the machine shell, and an air outlet of the heat dissipation channel corresponds to the windward side of the heat dissipater; and the heat dissipation fan is arranged in the heat dissipation channel. According to the air conditioner outdoor unit, the air channel piece is arranged, the heat dissipation channel is defined by the air channel piece, the heat dissipation air channel is formed in the heat dissipation channel, so that air outside the machine shell can be in contact with the heat dissipation device through the heat dissipation channel, and the heat dissipation effect of the heat dissipation device is improved.

Description

Technical Field

[0001] This application relates to the technical field of air conditioners, and particularly to an outdoor unit of an air conditioner. Background Art

[0002] With the continuous progress of air conditioner technology and the continuous expansion of its application fields, as an important part of the air conditioner system, the performance and reliability requirements of the outdoor unit of the air conditioner are increasing day by day. During the operation of the outdoor unit of the air conditioner, the electronic control board inside it is responsible for controlling the operation of the entire system, including key functions such as starting and stopping the compressor and adjusting the rotation speed of the fan. Since a large number of power devices are integrated on the electronic control board, these devices will generate a large amount of heat when working. If the heat cannot be dissipated in time, it will cause the temperature of the electronic control board to rise, which will in turn affect its performance and reliability, and may even cause failures, affecting the normal operation of the entire air conditioner system.

[0003] Although there are currently many heat dissipation solutions for the power devices on the electronic control board, these solutions still cannot well meet the requirements of the outdoor unit of the air conditioner. Utility Model Content

[0004] Aiming at the deficiencies in the related art, this application proposes an outdoor unit of an air conditioner, aiming to improve the heat dissipation efficiency of the power devices on the electronic control board, reduce the heat dissipation cost, and enhance the stability and reliability of the heat dissipation system.

[0005] This application provides an outdoor unit of an air conditioner, including:

[0006] A housing, which includes a housing air inlet and a housing air outlet, and the housing air outlet is arranged on the front side of the housing; a first chamber and a second chamber are defined inside the housing; the housing air inlet and the housing air outlet are respectively communicated with the first chamber;

[0007] A heat exchanger, which is arranged in the first chamber and is arranged close to the housing air inlet;

[0008] A fan, which is arranged in the first chamber, the fan is located on the leeward side of the heat exchanger and is arranged close to the housing air outlet;

[0009] A compressor, which is arranged in the second chamber;

[0010] An electric control box, which is arranged inside the housing; an electronic control board is arranged inside the electric control box, and the electronic control board is configured to control the operation of the fan and the compressor;

[0011] A radiator, which is arranged in the second chamber, and the leeward side of the radiator is arranged close to the electronic control board;

[0012] An air duct member, which is arranged inside the housing, and the air duct member defines a heat dissipation channel, the air inlet of the heat dissipation channel is communicated with the outside of the housing, and the air outlet of the heat dissipation channel is arranged corresponding to the windward side of the radiator;

[0013] A heat dissipation fan is arranged in the heat dissipation channel;

[0014] When the cooling fan is running, the air outside the casing enters the cooling channel from the air inlet of the cooling channel, passes through the air outlet of the cooling channel, and then exchanges heat with the radiator through convection.

[0015] The technical solution sets a duct member, uses the duct member to define a heat dissipation channel, and sets a heat dissipation duct in the heat dissipation channel, so that the air outside the casing can contact the radiator through the heat dissipation channel, thereby increasing the heat dissipation effect of the radiator.

[0016] In some embodiments, the air duct member is disposed in the second chamber, and the cavity wall of the second chamber is provided with a through portion, which is arranged corresponding to the air inlet of the heat dissipation channel so that the air outside the casing enters the heat dissipation channel through the through portion.

[0017] In some of the embodiments, the electric control board is connected to a vapor chamber, and a side of the vapor chamber facing away from the electric control board is connected to a leeward side of the radiator.

[0018] In some of the embodiments, a temperature averaging plate is connected to a side of the heat spreader facing away from the electronic control board, and the temperature averaging plate is connected to the leeward side of the radiator.

[0019] The present application also provides an air conditioner outdoor unit, comprising:

[0020] The casing comprises a casing air inlet and a casing air outlet, wherein the casing air outlet is arranged at the front side of the casing; a first chamber and a second chamber are defined inside the casing; the casing air inlet and the casing air outlet are respectively connected to the first chamber;

[0021] A heat exchanger is disposed in the first chamber, and the heat exchanger is disposed near an air inlet of the casing;

[0022] A fan is arranged in the first chamber, the fan is located on the leeward side of the heat exchanger, and the fan is arranged close to the air outlet of the casing;

[0023] a compressor disposed in the second chamber;

[0024] An electric control box is arranged inside the casing; an electric control board is arranged inside the electric control box, and the electric control board is configured to control the operation of the fan and the compressor;

[0025] A radiator is disposed in the second chamber, with the leeward side of the radiator facing the electric control panel;

[0026] A heat spreader, which is arranged on the side of the electric control board facing the radiator;

[0027] A temperature evaporating plate is arranged on a side of the temperature evaporating plate away from the electronic control board, and a side of the temperature evaporating plate away from the temperature evaporating plate is in contact with a leeward side of the radiator;

[0028] The heat generated by the electronic control board is sequentially transferred to the radiator through the heat spreader and the heat equalizer plate.

[0029] In this technical solution, by setting the heat spreader and the heat equalizer plate, the heat generated by the electronic control board is transferred by the heat spreader and the heat equalizer plate, increasing the efficiency of heat transfer to the radiator and enhancing the heat transfer effect, thereby improving the heat dissipation effect of the radiator on the electronic control board.

[0030] In some embodiments, the heat spreader includes an evaporation surface and a condensation surface. The evaporation surface is in contact with the electronic control board, and the condensation surface is in contact with the heat equalizer plate.

[0031] In some embodiments, the heat equalizer plate is made of graphene.

[0032] In some embodiments, a middle partition is provided inside the housing. The first chamber and the second chamber are separated from each other by the middle partition; the radiator is installed on one side of the middle partition facing the second chamber.

[0033] In some embodiments, an installation shell is installed on the middle partition, and the radiator is installed in the installation shell with the windward side of the radiator facing the installation shell.

[0034] In some embodiments, the installation shell defines an installation cavity, and the radiator is disposed in the installation cavity; the installation cavity is provided with an installation cavity opening, and the installation cavity opening intersects with the windward side of the radiator; the installation cavity opening is correspondingly arranged with the air outlet of the heat dissipation channel.

[0035] In the above embodiments, an air conditioner outdoor unit forms a heat dissipation channel by arranging a duct member in the housing, and a heat dissipation duct is arranged in the heat dissipation channel, so that the air outside the housing can pass through the heat dissipation channel and contact the radiator, thereby enhancing the heat dissipation effect of the radiator.

[0036] An air conditioner outdoor unit increases the efficiency of heat transfer to the radiator and enhances the heat transfer effect by setting a heat spreader and a heat equalizer plate, and transferring the heat generated by the electronic control board through the heat equalizer plate and the heat equalizer plate, thereby improving the heat dissipation effect of the radiator on the electronic control board. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is a schematic structural diagram of an embodiment of an air conditioner outdoor unit in the present application;

[0038] Figure 2 is a sectional view of an embodiment of an air conditioner outdoor unit in the present application;

[0039] Figure 3 is a schematic structural diagram of an embodiment of an air conditioner outdoor unit in the present application without the fan cover assembled;

[0040] Figure 4It is a schematic diagram of the internal structure of the housing in an embodiment of the outdoor unit of the air conditioner in this application;

[0041] Figure 5 It is a schematic diagram of the installation position of the heat dissipation component in an embodiment of the outdoor unit of the air conditioner in this application;

[0042] Figure 6 It is a schematic diagram of the structure when the heat dissipation component is installed on the partition board and the side board in an embodiment of the outdoor unit of the air conditioner in this application;

[0043] Figure 7 It is a schematic diagram of the structure when the heat dissipation component and the air duct part are assembled with each other in an embodiment of the outdoor unit of the air conditioner in this application;

[0044] Figure 8 It is a schematic diagram of the heat dissipation component in an embodiment of the outdoor unit of the air conditioner in this application;

[0045] Figure 9 It is an exploded view of the heat dissipation component in an embodiment of the outdoor unit of the air conditioner in this application;

[0046] Figure 10 It is a schematic diagram of the heat spreader in an embodiment of the outdoor unit of the air conditioner in this application;

[0047] Figure 11 It is a schematic diagram of the heat pipe in an embodiment of the outdoor unit of the air conditioner in this application;

[0048] Figure 12 It is a schematic diagram of the air duct part in an embodiment of the outdoor unit of the air conditioner in this application;

[0049] Figure 13 It is a schematic diagram of the air duct part from another angle in an embodiment of the outdoor unit of the air conditioner in this application;

[0050] Figure 14 It is a schematic diagram of the structure when the mounting shell is assembled on the partition board in an embodiment of the outdoor unit of the air conditioner in this application.

[0051] In the figure,

[0052] 100, housing; 200, fan cover; 300, heat exchanger; 400, fan; 500, compressor; 600, heat dissipation component; 700, air duct part;

[0053] 101, housing air inlet; 102, housing air outlet;

[0054] 110, front panel; 120, first side panel; 130, top panel; 140, bottom panel; 150, middle partition board;

[0055] 121, through part;

[0056] 610. Installation shell; 620. Radiator; 630. Power device; 640. Heat pipe; 650. Heat spreader;

[0057] 611. Connection part;

[0058] 641. Housing; 642. Wick; 643. Support pillar; 644. Vapor chamber;

[0059] 701. Heat dissipation air inlet;

[0060] 710. Heat dissipation channel; 720. Heat dissipation fan. Detailed implementation manners

[0061] To make the purpose and implementation manners of this application clearer, the following will clearly and completely describe the exemplary implementation manners of this application with reference to the accompanying drawings in the exemplary embodiments of this application. Obviously, the described exemplary embodiments are only a part of the embodiments of this application, rather than all of the embodiments.

[0062] It should be noted that the brief description of the terms in this application is only for facilitating the understanding of the subsequent described implementation manners, rather than intending to limit the implementation manners of this application. Unless otherwise specified, these terms should be understood in their ordinary and common meanings.

[0063] The terms "first", "second", etc. in the specification, claims and the above-mentioned drawings of this application are used to distinguish similar or like objects or entities, and do not necessarily mean to limit a specific order or sequence, unless otherwise noted. It should be understood that such terms can be interchanged under appropriate circumstances.

[0064] The terms "include" and "have" and any of their variations are intended to cover but not be exclusive of inclusion. For example, a product or device that includes a series of components does not necessarily have to be limited to all the clearly listed components, but may include other components that are not clearly listed or are inherent to these products or devices.

[0065] The air conditioner outdoor unit provided by this application can have various implementation forms. For example Figures 1-14 This is a specific implementation manner of the air conditioner outdoor unit of this application.

[0066] For example Figure 1As shown, the outdoor unit of the air conditioner provided by the present application includes a housing 100, and the housing 100 is used to form the overall appearance of the outdoor unit of the air conditioner. The top and bottom of the housing 100 are opposite ends, and the direction from the top of the housing 100 to the bottom of the housing 100 is the height direction of the housing 100; the left and right sides of the housing 100 are opposite sides, and the direction from the left side of the housing 100 to the right side of the housing 100 is the length direction of the housing 100; the front and rear sides of the housing 100 are opposite sides, and the direction from the front side of the housing 100 to the rear side of the housing 100 is the thickness direction of the housing 100.

[0067] A first chamber is defined inside the housing 100, and the first chamber is used for heat exchange of air.

[0068] As Figure 1 shown, the housing 100 includes a housing air inlet 101; the housing air inlet 101 is communicated with the first chamber, and the air outside the housing 100 enters the first chamber through the housing air inlet 101.

[0069] In some embodiments, the housing air inlet 101 is provided at the rear side of the housing 100.

[0070] In other embodiments, the housing air inlet 101 is provided at the rear side of the housing 100 and on the left side and / or the right side of the housing 100 to increase the air intake of the outdoor unit of the air conditioner.

[0071] In this embodiment, the housing air inlet 101 is opened at the rear side and the right side of the housing 100, so that the outdoor unit of the air conditioner has a large air intake, thereby enabling the outdoor unit of the air conditioner to have better performance.

[0072] As Figure 3 shown, the housing 100 includes a housing air outlet 102, the housing air outlet 102 is communicated with the first chamber, and the air in the first chamber is output to the outside through the housing air outlet 102.

[0073] The housing air outlet 102 is opened at the front side of the housing 100.

[0074] As Figure 2 and Figure 4 shown, the outdoor unit of the air conditioner includes a heat exchanger 300, the heat exchanger 300 is arranged in the first chamber, the heat exchanger 300 is arranged close to the housing air inlet 101, and the heat exchanger 300 is used for heat exchange of the air passing through it.

[0075] In some embodiments, the heat exchanger 300 extends from the right side of the housing 100 through the rear side of the housing 100 towards the left side of the housing 100, so as to increase the heat exchange area of the heat exchanger 300 as much as possible under the condition that the internal space of the housing 100 remains unchanged, thereby increasing the heat exchange effect of the heat exchanger 300 and further increasing the performance of the outdoor unit of the air conditioner.

[0076] As Figures 2-4 shown, the outdoor unit of the air conditioner includes a fan 400. The fan 400 is arranged in the first chamber, located on the leeward side of the heat exchanger 300, and is disposed near the air outlet 102 of the casing.

[0077] By the operation of the fan 400, the air outside the casing 100 enters the first chamber from the air inlet 101 of the casing, is heat-exchanged through the heat exchanger 300, and then is output to the outside of the casing 100 from the air outlet 102.

[0078] In this embodiment, the fan 400 is an axial flow fan.

[0079] As Figure 1 shown, the outdoor unit of the air conditioner includes a fan cover 200. The fan cover 200 is located at the air outlet 102 of the casing. On the one hand, it can protect the fan 400 to prevent sundries from entering the inside of the casing 100 from the air outlet 102 and contacting the fan 400, affecting the normal operation of the fan 400; on the other hand, it can make the gas inhaled by the fan more concentrated, thereby increasing the speed and pressure of the gas, and ultimately increasing the wind force output by the fan. In other words, the fan cover 200 can focus the blown air, improve the heat dissipation effect, and make the refrigeration and heating effects better.

[0080] A second chamber is defined inside the casing 100. The second chamber and the first chamber are arranged along the length direction of the casing 100 respectively; the second chamber and the first chamber are independently arranged.

[0081] As Figure 4 shown, the outdoor unit of the air conditioner includes a compressor 500. The compressor 500 is arranged in the second chamber. The compressor 500 is used to compress the refrigerant in the low-pressure state into the high-pressure state to drive the flow of the refrigerant.

[0082] It should be noted that the compressor is also connected with components such as a gas-liquid separator through pipelines. The components such as the gas-liquid separator are arranged in the second chamber. This belongs to the common general knowledge technology in the field and will not be elaborated here.

[0083] As Figure 4 and Figure 5 shown, the casing 100 includes a middle partition 150. The middle partition 150 is arranged inside the casing 100 and is disposed along the height direction of the casing 100; the first chamber and the second chamber are separated from each other by the middle partition 150.

[0084] As Figure 3 and Figure 5 shown, the casing 100 includes a front panel 110. The front panel 110 is located on the front side of the casing 100; the air outlet 102 of the casing is opened on the front panel 110. It should be noted that in this embodiment, the fan cover 200 is installed on the front panel 110.

[0085] The housing 100 includes a rear panel which is located at the rear side of the housing 100, and the rear panel and the front panel 110 are arranged corresponding to each other in the thickness direction of the housing 100.

[0086] As Figure 3 shown, the housing 100 includes a first side panel 120 which is used to form the inner wall of the second chamber.

[0087] The housing 100 includes a second side panel which is used to form the inner wall of the first chamber; the second side panel and the first side panel 120 are arranged corresponding to each other in the length direction of the housing 100.

[0088] In this application, the first side panel 120 is located on the left side of the housing 100, the second side panel is located on the right side of the housing 100, and the housing air inlet 101 is provided on the second side panel.

[0089] As Figure 3 shown, the housing 100 includes a bottom plate 140 which is located at the bottom of the housing 100, and the lower end of the middle partition plate 150 is connected to the bottom plate 140.

[0090] As Figure 3 shown, the housing 100 includes a top plate 130 which is located at the top of the housing 100, and the top plate 130 and the bottom plate 140 are arranged corresponding to each other in the height direction of the housing 100.

[0091] The outdoor air conditioner includes an electric control box which is arranged inside the housing 100. An electric control board is installed in the electric control box and is electrically connected to the compressor 500 and the fan 400 for controlling the operation of the compressor 500 and the fan 400.

[0092] In some embodiments, the electric control box is located above the first chamber and the second chamber.

[0093] In some embodiments, the electric control box is arranged in the second chamber.

[0094] The electric control board includes a power device 630. The output power of the power device 630 is relatively large. The power device 630 generally includes transistors, intelligent power modules, etc. Generally, the heat generated during the operation of the electric control board mostly refers to the heat generated when the power device 630 operates; the power device 630 on the electric control board belongs to the well-known common sense technology in this field and will not be elaborated here.

[0095] As Figure 5 and Figure 6 shown, the outdoor air conditioner includes a heat dissipation component 600 which is arranged inside the housing 100. The heat dissipation component 600 is arranged close to the electric control box and is used to dissipate the heat generated when the electric control board operates.

[0096] AsFigure 7 and Figure 8 As shown in Figure 8 , the heat dissipation component 600 includes a radiator 620, which is disposed close to the electronic control board; the radiator 620 is disposed in the second chamber, and the heat generated when the electronic control board works is transferred to the radiator 620. The radiator 620 exchanges heat with the air through convection to dissipate the heat generated when the electronic control board works.

[0097] The radiator 620 includes a leeward side, and the leeward side of the radiator 620 is disposed close to the electronic control board; the heat is transferred from the leeward side of the radiator 620 to the radiator 620.

[0098] The radiator 620 includes a windward side, and the windward side of the radiator 620 is in contact with the air so that the radiator 620 exchanges heat with the air through convection.

[0099] The radiator 620 is disposed in the second chamber, and the radiator 620 exchanges heat with the air in the second chamber so that the air can take away the heat transferred from the windward surface of the radiator 620, thereby enabling the radiator 620 to dissipate the heat generated when the electronic control board works.

[0100] As Figure 7 and Figure 8 shown in Figure 8 , the heat dissipation component 600 includes a heat pipe 640, which is disposed on the side of the electronic control board facing the radiator 620 and is used to transfer the heat generated when the electronic control board works.

[0101] The heat pipe 640 is a vacuum cavity with a fine structure on its inner wall. When heat is conducted from the heat source to the evaporation area, the coolant in the cavity starts to vaporize under the action of heat in a low-vacuum environment. At this time, it absorbs heat energy and expands rapidly in volume. The gaseous cooling medium quickly fills the entire cavity. When the gaseous working medium contacts a relatively cold area, condensation occurs. The heat accumulated during evaporation is released through the condensation phenomenon. The condensed coolant will return to the evaporation heat source through the capillary pipes of the micro-structure, and this operation will be carried out repeatedly in the cavity.

[0102] Specifically, as Figure 10 shown in Figure 10 , the heat pipe 640 includes a housing 641, and a cavity is defined inside the housing 641. The housing 641 is usually made of copper.

[0103] The heat pipe 640 includes support columns 643, which are disposed in the cavity and are used to support the housing 641, improve the overall stiffness and strength of the heat pipe 640, and ensure the reliability of the cavity.

[0104] The vapor chamber 640 includes an evaporation surface, which is disposed toward the electric control board; the vapor chamber 640 includes a condensation surface, which is disposed away from the electric control board. When the vapor chamber 640 is working normally, heat is transferred from the evaporation surface to the inside of the vapor chamber 640 through heat conduction, and then transferred to other components by the condensation surface.

[0105] The heat spreader 640 includes a working medium, which is a medium for heat transfer. The heat transfer is achieved through the phase change of the working medium. The liquid working medium absorbs heat on the evaporation surface and becomes gaseous, and the gaseous working medium releases heat on the condensation surface and becomes liquid.

[0106] The heat spreader 640 includes a liquid wick 642, which is disposed in the cavity. A steam cavity 644 is defined inside the liquid wick 642. The liquid wick 642 is the starting position for the phase change of the liquid working medium. When the heat spreader 640 is working, the working medium stored in the liquid wick 642 absorbs heat and evaporates and boils to become a gaseous state. This is a key step for the heat spreader 640 to achieve heat transfer. The gaseous working medium entering the steam cavity 644 releases heat and becomes a liquid again and flows into the liquid wick 642.

[0107] It should be noted that the wick 642 can also support the shell 641 to improve the overall rigidity and strength of the heat spreader 640 .

[0108] In some embodiments, the support column 643 is disposed in the wick 642 to support the wick 642 to form a steam chamber 644 , and the support column 643 supports the shell 641 through the wick 642 .

[0109] The working principle of the heat spreader 640 is as follows: heat is input to the evaporation surface, the working fluid inside the heat spreader 640 absorbs heat on the evaporation surface to evaporate or boil, the liquid working fluid turns into steam, and under the action of the pressure difference, the steam flows to the condensation surface, condenses and releases heat, and at the same time, the working fluid flows back to the evaporation surface under the action of gravity or the capillary force of the liquid absorption core 642, continues to change phase and forms a working cycle.

[0110] The heat dissipation assembly 600 includes a temperature averaging plate 650 , which is disposed on a side of the heat averaging plate 640 away from the electronic control board. The side of the temperature averaging plate 650 away from the heat averaging plate 640 is in contact with the leeward side of the radiator 620 .

[0111] In the present application, the temperature homogenizing plate 650 is made of graphene material to increase the heat conduction effect of the temperature homogenizing plate 650 .

[0112] like Figure 11As shown, the lattice structure of graphene presents a hexagonal honeycomb arrangement, and carbon atoms are connected by covalent bonds. This structure endows graphene with high structural stability and a close arrangement, which is conducive to heat conduction. Heat conduction in graphene is mainly achieved through phonon conduction. Phonons are thermal vibration particles in crystals, and they transfer heat in the lattice structure. The phonon conduction speed in graphene is very high, and the thermal conductivity is very large, enabling rapid heat transfer. The quantity of heat input is not limited to one.

[0113] The heat generated during the operation of the electronic control board is successively transferred to the heat sink 620 through the vapor chamber 640 and the heat spreader 650.

[0114] In this application, by arranging the vapor chamber 640 and the heat spreader 650, the heat generated during the operation of the electronic control board is transferred to the heat sink 620, so that the heat generated during the operation of the electronic control board can be transferred to the heat sink 620 in a timely and efficient manner, thereby enabling the heat sink 620 to dissipate heat in a timely and effective manner.

[0115] It should be noted that the vapor chamber 640 and the heat spreader 650 can be designed in size according to the position of the power device 630 on the electronic control board, giving full play to the optimal heat dissipation performance of the heat pipe as much as possible and ensuring the lowest cost, thereby improving the heat dissipation performance of the electronic control board.

[0116] It should also be noted that the vapor chamber 640 and the heat spreader 650 are usually connected and fixed by fasteners such as bolts or screws. In this embodiment, the vapor chamber 640 and the heat spreader 650 are arranged in parallel, and the same fastener successively passes through the vapor chamber 640 and the heat spreader 650 to be connected to the heat sink 620, so as to save the number of fasteners, reduce the assembly cost, and improve the assembly efficiency.

[0117] As Figure 7 and Figure 8 shown, the heat dissipation assembly 600 includes an installation shell 610, and the installation shell 610 is used to fix the heat sink 620; the installation shell 610 is arranged in the second chamber, and the installation shell 610 is connected to one side of the middle partition 150 facing the second chamber.

[0118] The installation shell 610 has a U-shaped structure. The middle partition 150 and the installation shell 610 jointly define an installation cavity. The installation cavity is provided with an installation opening, and the opening direction of the installation opening is set facing the electronic control board. The heat sink 620 is arranged in the installation cavity through the installation opening.

[0119] There is a gap between the windward side of the heat sink 620 and the inner wall of the installation cavity facing it, so that air can flow in the installation cavity, thereby ensuring the heat exchange effect between the heat sink 620 and the air.

[0120] As Figure 14As shown, the installation housing 610 is provided with a connecting portion 611. The connecting portion 611 is provided at the outer edge of the installation housing 610. The connecting portion 611 and the middle partition 150 are connected to each other by fasteners such as bolts or screws. The connecting portion 611 can not only facilitate the connection between the installation housing 610 and the middle partition 150, but also increase the contact area between the installation housing 610 and the middle partition 150.

[0121] As Figures 5-7 shown, the outdoor unit of the air conditioner includes an air duct member 700. The air duct member 700 is provided in the second chamber. A heat dissipation channel 710 is defined inside the air duct member 700. The heat dissipation channel 710 communicates with the outside of the housing 100 and is used to introduce the air outside the housing 100 into the second chamber, so that the radiator 620 and the air outside the housing 100 perform convective heat exchange, and avoid the radiator 620 contacting the air with a higher temperature and reducing the convective heat exchange effect of the radiator 620.

[0122] The air duct member 700 includes a heat dissipation air inlet 701. The heat dissipation air inlet 701 communicates with the heat dissipation channel 710. The air outside the housing 100 enters the heat dissipation channel 710 through the heat dissipation air inlet 701.

[0123] The air duct member 700 includes a heat dissipation air outlet. The heat dissipation air outlet communicates with the heat dissipation channel 710. The heat dissipation air outlet is arranged corresponding to the windward side of the radiator 620.

[0124] As Figure 12 and Figure 13 shown, the air duct member 700 includes a heat dissipation fan 720. The heat dissipation fan 720 is arranged in the heat dissipation channel 710. By the operation of the heat dissipation fan 720, the air outside the housing 100 enters the heat dissipation channel 710 from the heat dissipation air inlet 701 and is blown to the radiator 620 through the heat dissipation air outlet, so that the air and the radiator 620 perform convective heat exchange.

[0125] In some embodiments, the heat dissipation air inlet 701 is a grille opening. The heat dissipation air inlet 701 communicates with the outside of the housing 100 to prevent debris outside the housing 100 from entering the heat dissipation channel 710 and affecting the operation of the heat dissipation fan 720.

[0126] In some embodiments, a plurality of heat dissipation fans 720 are provided. The plurality of heat dissipation fans 720 work synchronously to increase the suction force of the heat dissipation fans 720 on the air outside the housing 100, thereby increasing the air intake volume of the heat dissipation channel 710, further increasing the convective heat exchange effect between the air and the heat dissipation fans 720, and increasing the heat dissipation effect of the radiator 620.

[0127] It should be noted that in this application, the heat dissipation fan 720 is a centrifugal fan, and the heat dissipation fan 720 is installed on the air duct member 700.

[0128] As Figure 14As shown, the first side plate 120 is provided with a through portion, and the heat dissipation air inlet 701 is correspondingly arranged with the through portion, so that the air outside the casing 100 can enter the heat dissipation channel 710 through the through portion and the heat dissipation air inlet 701.

[0129] In this embodiment, the through portion is an opening provided on the first side plate 120, and the second chamber and the outside of the casing 100 communicate with each other through the through portion.

[0130] In this application, the radiator 620 is vertically arranged in the second chamber. The windward side of the radiator 620 faces the rear side of the casing 100, and the leeward side of the radiator 620 faces the front side of the casing 100. The air duct member 700 is located on the left side of the radiator 620 facing the casing 100.

[0131] It should be noted that the installation position of the radiator 620 in the second chamber includes but is not limited to being vertically arranged. The installation position of the air duct member 700 in the second chamber is adjusted according to the installation position of the radiator 620. However, it can be determined that the air output from the heat dissipation air outlet faces the windward side of the radiator 620, so that the radiator 620 can contact the air outside the casing 100 in time.

[0132] The working principle of the above air conditioner outdoor unit is as follows: When the power device 630 works, the heat generated is transferred to the radiator 620 through the electric control board, the heat equalizing plate 640, and the temperature equalizing plate 650, improving the efficiency of heat transfer to the radiator 620; moreover, by the operation of the heat dissipation fan 720, the air outside the casing 100 enters the heat dissipation channel 710 through the through portion and the heat dissipation air inlet 701 and is blown from the heat dissipation air outlet to the windward side of the radiator 620, and the air undergoes convective heat transfer with the heat dissipation, so as to increase the heat dissipation effect of the radiator 620.

[0133] The above air conditioner outdoor unit forms a heat dissipation channel 710 by setting the air duct member 700 in the casing 100, and sets a heat dissipation air duct in the heat dissipation channel 710, so that the air outside the casing 100 can contact the radiator 620 through the heat dissipation channel 710, thereby increasing the heat dissipation effect of the radiator 620; by setting the heat equalizing plate 640 and the temperature equalizing plate 650, the heat generated by the electric control board is transferred by the temperature equalizing plate 650 and the heat equalizing plate 650, increasing the efficiency of heat transfer to the radiator 620 and the heat transfer effect, thereby increasing the heat dissipation effect of the radiator 620 on the electric control board, which can greatly reduce the temperature of each heat generating component of the electric control board in a high temperature environment, and further improve the high temperature refrigeration capacity of the air conditioner and the operating frequency of the air conditioner in a high temperature environment, greatly improving the user comfort experience.

[0134] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0135] For the sake of explanation, the above description has been presented in connection with specific embodiments. However, the above exemplary discussions are not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Many modifications and variations are possible in light of the above teachings. The selection and description of the embodiments are intended to best explain the principles and practical applications, thereby enabling those skilled in the art to best utilize the embodiments and various embodiments adapted to specific uses.

Claims

1. An air conditioner outdoor unit, characterized in that: include: A casing, comprising a casing air inlet and a casing air outlet, wherein the casing air outlet is arranged at the front side of the casing; a first chamber and a second chamber are defined inside the casing; the casing air inlet and the casing air outlet are respectively connected to the first chamber; A heat exchanger, which is disposed in the first chamber, and the heat exchanger is disposed near the air inlet of the casing; A fan, which is arranged in the first chamber, the fan is located on the leeward side of the heat exchanger, and the fan is arranged close to the air outlet of the casing; a compressor disposed in the second chamber; An electric control box is arranged inside the casing; an electric control board is arranged inside the electric control box, and the electric control board is configured to control the operation of the fan and the compressor; A radiator is disposed in the second chamber, and a leeward side of the radiator is disposed close to the electric control board; An air duct member is arranged inside the housing, the air duct member defines a heat dissipation channel, an air inlet of the heat dissipation channel is connected to the outside of the housing, and an air outlet of the heat dissipation channel is arranged corresponding to the windward side of the radiator; A heat dissipation fan, which is arranged in the heat dissipation channel; When the heat dissipation fan is running, the air outside the housing enters the heat dissipation channel through the air inlet of the heat dissipation channel, passes through the air outlet of the heat dissipation channel, and then exchanges heat with the radiator through convection.

2. The air conditioner outdoor unit according to claim 1, characterized in that: The air duct member is arranged in the second chamber, and a through portion is arranged on the cavity wall of the second chamber. The through portion is arranged corresponding to the air inlet of the heat dissipation channel so that the air outside the casing passes through the through portion and enters the heat dissipation channel.

3. The air conditioner outdoor unit according to claim 1, characterized in that: The electric control board is connected to a heat spreader, and a side of the heat spreader facing away from the electric control board is connected to the leeward side of the radiator.

4. The air conditioner outdoor unit according to claim 3, characterized in that: A temperature averaging plate is connected to the side of the heat spreader away from the electric control board, and the temperature averaging plate is connected to the leeward side of the radiator.

5. An air conditioner outdoor unit, characterized in that: include: A casing, comprising a casing air inlet and a casing air outlet, wherein the casing air outlet is arranged at the front side of the casing; a first chamber and a second chamber are defined inside the casing; the casing air inlet and the casing air outlet are respectively connected to the first chamber; A heat exchanger, which is disposed in the first chamber, and the heat exchanger is disposed near the air inlet of the casing; A fan, which is arranged in the first chamber, the fan is located on the leeward side of the heat exchanger, and the fan is arranged close to the air outlet of the casing; a compressor disposed in the second chamber; An electric control box is arranged inside the casing; an electric control board is arranged inside the electric control box, and the electric control board is configured to control the operation of the fan and the compressor; a radiator, which is disposed in the second chamber, with the leeward side of the radiator disposed toward the electric control board; A heat spreader, which is arranged on a side of the electric control board facing the radiator; A temperature evaporating plate, which is arranged on a side of the temperature evaporating plate away from the electric control board, and a side of the temperature evaporating plate away from the temperature evaporating plate is in contact with a leeward side of the radiator; The heat generated by the electric control board is transferred to the radiator through the heat spreader and the temperature spreader in sequence.

6. The air conditioner outdoor unit according to claim 4 or 5, characterized in that: The heat spreader includes an evaporation surface and a condensation surface. The evaporation surface is in contact with the electric control board, and the condensation surface is in contact with the heat spreader.

7. The air conditioner outdoor unit according to claim 4 or 5, characterized in that: The temperature balancing plate is made of graphene.

8. The air conditioner outdoor unit according to claim 1 or 5, characterized in that: A middle partition is provided inside the housing, and the first chamber and the second chamber are separated from each other by the middle partition; the radiator is installed on a side of the middle partition facing the second chamber.

9. The air conditioner outdoor unit according to claim 8, characterized in that: The middle partition is installed with a mounting shell, the radiator is installed on the mounting shell, and the windward side of the radiator is arranged toward the mounting shell.

10. The air conditioner outdoor unit according to claim 9, characterized in that: The mounting shell defines a mounting cavity, and the radiator is arranged in the mounting cavity; the mounting cavity is provided with a mounting cavity opening, and the mounting cavity opening intersects with the windward side of the radiator; the mounting cavity opening is arranged corresponding to the air outlet of the heat dissipation channel.

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