WO2021169449A1

WO2021169449A1 - Air conditioner outdoor unit

Info

Publication number: WO2021169449A1
Application number: PCT/CN2020/131859
Authority: WO
Inventors: 周学明
Original assignee: 海信（广东）空调有限公司
Priority date: 2020-02-25
Filing date: 2020-11-26
Publication date: 2021-09-02

Abstract

Provided is an air conditioner outdoor unit (1), comprising: a housing (100); a control panel (200), with the control panel (200) being arranged inside the housing (100); an air channel cover plate (300), with the air channel cover plate (300) being arranged inside the housing (100), and defining a heat dissipation air channel (301) in the housing (100); a heat pipe (400), with the heat pipe (400) being provided with an evaporation part (410) and a condensation part (420), the evaporation part (410) making contact with the control panel (200) for heat conduction, and the condensation part (420) being arranged in the heat dissipation air channel (301); fins (500), with the fins (500) being arranged on the condensation part (420) of the heat pipe (400) and located in the heat dissipation air channel (301), and the fins (500) being provided with heat dissipation windows (510); and a first air guide device (600), with the first air guide device (600) being mounted in the housing (100).

Description

Air conditioner outdoor unit

Technical field

The present disclosure relates to the technical field of air conditioners, and in particular to an outdoor unit of an air conditioner.

Background technique

In the related art outdoor unit of the air conditioner, the heating module of the control board generates a large amount of heat, and natural heat dissipation and refrigerant heat dissipation are generally used to dissipate heat from the control board. Among them, the heat dissipation effect of natural heat dissipation is limited, while the structure of refrigerant heat dissipation is complicated, the control logic is cumbersome and there is a loss of capacity, resulting in higher overall costs.

Summary of the invention

The present disclosure aims to solve at least one of the technical problems existing in the prior art. To this end, one objective of the present disclosure is to provide an air conditioner outdoor unit, which has the advantages of good heat dissipation effect and low cost.

In order to achieve the above objective, according to an embodiment of the present disclosure, an outdoor unit of an air conditioner is provided. The outdoor unit of the air conditioner includes: a casing; The channel cover plate is arranged in the housing and defines a heat dissipation air channel in the housing; a heat pipe, the heat pipe has an evaporating part and a condensing part, the evaporating part is in contact with the control board to conduct heat, and the condensing part is provided In the heat dissipation air duct; fins, the fins are provided in the condensing part of the heat pipe and are located in the heat dissipation air duct, and the fins are provided with heat dissipation windows; the first air guide device, the first guide The wind device is installed in the casing.

The outdoor unit of the air conditioner according to the embodiment of the present disclosure has the advantages of good heat dissipation effect and low cost.

The additional aspects and advantages of the present disclosure will be partially given in the following description, and some will become obvious from the following description, or be understood through the practice of the present disclosure.

Description of the drawings

The above and/or additional aspects and advantages of the present disclosure will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

Fig. 1 is a schematic structural diagram of an outdoor unit of an air conditioner according to an embodiment of the present disclosure.

Fig. 2 is a structural schematic diagram of an air duct cover and an electric control box of an outdoor unit of an air conditioner according to an embodiment of the present disclosure.

Fig. 3 is an assembly schematic diagram of the air duct cover, the control board and the electric control box of the outdoor unit of the air conditioner according to the embodiment of the present disclosure.

Fig. 4 is an assembly diagram of a control board and a heat conducting mounting plate of an outdoor unit of an air conditioner according to an embodiment of the present disclosure.

Fig. 5 is an exploded view of a control board and a heat conducting mounting plate of an outdoor unit of an air conditioner according to an embodiment of the present disclosure.

Fig. 6 is an assembly schematic diagram of a heat pipe, fins and a heat conducting mounting plate of an outdoor unit of an air conditioner according to an embodiment of the present disclosure.

Fig. 7 is an exploded view of a heat pipe, fins, and a heat conducting mounting plate of an outdoor unit of an air conditioner according to an embodiment of the present disclosure.

Fig. 8 is a schematic structural diagram of an air duct cover and a guide plate group of an outdoor unit of an air conditioner according to an embodiment of the present disclosure.

Fig. 9 is a schematic structural diagram of an outdoor unit of an air conditioner according to another embodiment of the present disclosure.

Fig. 10 is a schematic diagram of the connection of the air duct cover, the electric control box and the control board of the outdoor unit of the air conditioner according to another embodiment of the present disclosure.

Fig. 11 is an exploded view of an air duct cover, an electric control box and a control panel of an outdoor unit of an air conditioner according to another embodiment of the present disclosure.

Fig. 12 is a schematic structural diagram of an air duct cover of an outdoor unit of an air conditioner according to another embodiment of the present disclosure.

Reference signs:

Air conditioner outdoor unit 1,

The housing 100, the first chamber 101, the second chamber 102, the heat exchanger 103, the compressor 104,

Control board 200, electronic components 210,

Air duct cover 300, heat dissipation air duct 301, flaring part 302, air inlet 320, air outlet 330, drainage ring 340, first arc-shaped part 341, second arc-shaped part 342, upper straight part 343, lower flat Straight 344, drainage cavity 350,

Heat pipe 400, evaporation part 410, condensation part 420, plane 401, first heat pipe 430, first evaporation part 431, first condensation part 432, second heat pipe 440, second evaporation part 441, second condensation part 442,

Fin 500, heat dissipation window 510, flanged hole 520,

The first air guiding device 600,

Thermally conductive mounting plate 700, pipe groove 710, U-shaped pipe groove 701, L-shaped pipe groove 702,

Electric control box 800,

Air inlet 900 and air inlet 910.

Guide plate group 1000, guide plate 1100, draft foot 1110, branch tower 1200, first branch plate 1210, second branch plate 1220, string trough 1300,

The second air guide device 2000, the motor 2100, the impeller 2200, the bracket 2300, the central part 2310, and the mounting arm 2320.

Detailed ways

The embodiments of the present disclosure are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, and are only used to explain the present disclosure, and should not be construed as limiting the present disclosure.

In the description of the present disclosure, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply the pointed device Or the element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure.

In the description of the present disclosure, “first feature” and “second feature” may include one or more of these features. In the description of the present disclosure, "plurality" means two or more, and "several" means one or more.

Hereinafter, an air conditioner outdoor unit 1 according to a first alternative embodiment of the present disclosure will be described with reference to the accompanying drawings.

As shown in FIGS. 1 to 12, the air conditioner outdoor unit 1 according to the embodiment of the present disclosure includes a housing 100, a control board 200, an air duct cover 300, a heat pipe 400, fins 500 and a first air guide device 600.

The control board 200 is provided in the housing 100. The air duct cover 300 is disposed in the housing 100, and the air duct cover 300 defines a heat dissipation air duct 301 in the housing 100. The heat pipe 400 has an evaporating part 410 and a condensing part 420. The evaporating part 410 contacts the control board 200 to conduct heat, and the condensing part 420 is provided in the heat dissipation air duct 301. The fin 500 is provided in the condensing part 420 of the heat pipe 400 and is located in the heat dissipation air duct 301, and the fin 500 is provided with a heat dissipation window 510. The first air guiding device 600 is installed in the housing 100. For example, the first air guiding device 600 is a fan. It is understandable here that the first air guiding device 600 may be the original fan of the outdoor unit of the air conditioner, or it may be an additional fan. Increased fan.

The heat dissipation process of the control panel 200 of the air conditioner outdoor unit 1 implemented according to the present disclosure will be described below.

The heat generated by the control board 200 is conducted to the heat pipe 400. The medium inside the heat pipe 400 absorbs the heat and vaporizes to form the evaporation part 410. The steam flows to the rest of the heat pipe 400 under a slight pressure difference, and passes through the heat dissipation air duct 301 in the first air guiding device. 600 generates negative pressure and introduces cold air with a lower temperature. After the steam exchanges with the cold air, the heat is released to liquefy and re-condenses into a liquid to form a condensation part 420. The liquefied liquid flows through the porous material (liquid wick) by capillary force. Return to the evaporation part 410. In such a reciprocating cycle, heat is transferred from the evaporation part 410 of the heat pipe 400 to the condensing part 420, and the heat of the control board 200 is continuously conducted to achieve the purpose of cooling the control board 200.

According to the air conditioner outdoor unit 1 of the embodiment of the present disclosure, the heat pipe 400 and the air duct cover 300 are provided, so that the heat pipe 400 and the outside cold air are used to continuously dissipate heat from the control board 200. Compared with the cooling method of the refrigerant in the related technology, the structure and control logic are simple, which can effectively reduce the cost. In addition, the heat pipe 400 is a closed loop system, which is not controlled by the air conditioning and refrigeration system, and forms an independent closed loop system.

In addition, the condensing part 420 of the heat pipe 400 is provided with fins 500, and the fins 500 are located in the heat dissipation air duct 301, so that the fins 500 can be used to improve the heat dissipation effect of the condensing part 420, and the fin 500 is further provided with a heat dissipation window 510. As a result, not only the flow velocity of the airflow on the surface of the fin 500 can be increased, but also the heat exchange area between the fin 500 and the airflow can be increased, thereby further improving the heat dissipation efficiency.

Therefore, the air conditioner outdoor unit 1 according to the embodiment of the present disclosure has the advantages of good heat dissipation effect and low cost.

Those skilled in the art can understand that the outdoor unit 1 of the air conditioner according to the embodiment of the present disclosure further includes a heat exchanger 103, a compressor 104 and other components, which will not be repeated here.

For example, Figures 1 and 9 show an example of an arrangement of these components. The housing 100 may have a first chamber 101 and a second chamber 102, and the heat exchanger 103 spans the first chamber 101 and the second chamber. In the second chamber 102, the first air guiding device 600 is set in the first chamber 101, the compressor 104, the control board 200, the air duct cover 300, the heat pipe 400 and the fin 500 are set in the second chamber 102, and the control board The components 200, the air duct cover 300, the heat pipe 400, and the fin 500 may be located above the compressor 104.

In some specific examples of the present disclosure, as shown in FIG. 6, the fin 500 is provided with a plurality of heat dissipation windows 510, and each heat dissipation window 510 extends along the length of the fin 500, and the plurality of heat dissipation windows 510 are on the fin 500. Arranged in multiple groups, the multiple sets of heat dissipation windows 510 are respectively distributed in an array along the length and width directions of the fin 500, thereby further increasing the flow velocity of the airflow on the surface of the fin 500 and the heat exchange area between the fin 500 and the airflow to further improve heat dissipation Effect.

Further, there are multiple fins 500, each fin 500 is provided with a flanged hole 520, and the heat pipe 400 passes through the flanged hole 520 of the plurality of fins 500 to realize the fixation of the plurality of fins 500 and the condensing part 420 , The use of multiple fins 500 to improve the heat dissipation effect, the multiple fins 500 are arranged at intervals along the length of the heat pipe 400, and the distance between adjacent fins 500 is limited by the turning of the burring hole 520 to ensure that the multiple fins 500 are opposed to each other. The stability of the location.

In order to facilitate heat dissipation and improve heat dissipation efficiency, the distance between adjacent fins 500 is 0.5 mm-10 mm.

In some specific embodiments of the present disclosure, as shown in FIGS. 3-7, the air conditioner outdoor unit 1 further includes a heat-conducting mounting plate 700, the heat-conducting mounting plate 700 is mounted on the control board 200, and the heat-conducting mounting plate 700 is configured with a pipe groove 710, The evaporation part 410 is fitted in the pipe groove 710, and the heat-conducting mounting plate 700 presses the evaporation part 410 against the control board 200. Wherein, the heat-conducting mounting plate 700 may be an aluminum alloy plate, and the pipe groove 710 may be formed by an extrusion process.

By providing the heat-conducting mounting plate 700, not only can the evaporation part 410 of the heat pipe 400 be fixed, so that the evaporation part 410 and the control board 200 can be reliably bonded, but also the heat-conducting mounting plate 700 has thermal conductivity, so that the surface area of the evaporation part 410 can be fully utilized. The heat of the control board 200 is fully conducted to all parts of the evaporating part 410 in the circumferential direction, thereby improving the efficiency of heat conduction.

Specifically, as shown in FIG. 5, one side surface of the control board 200 is provided with electronic components 210, including but not limited to IPM (Intelligent Power Module), IGBT (Insulated Gate Bipolar Transistor), diode, silicon bridge, etc., The heat-conducting mounting board 700 is installed on the surface of the control board 200 where the electronic components 210 are arranged. The heat-conducting mounting board 700 presses the evaporating part 410 against the electronic components 210, and thermally conductive silica gel can be coated between the electronic components 210 and the evaporating part 410 , The heat generated by the electronic component 210 can be conducted to the evaporation part 410 in time.

Further, as shown in FIGS. 6 and 7, the surface of the evaporation part 410 facing the control board 200 is configured as a plane 401, so as to ensure the degree of adhesion between the evaporation part 410 and the electronic components 210 and increase the heat exchange area. The surface of the evaporation part 410 facing away from the control board 200 may be configured as an arc-shaped surface adapted to the pipe groove 710.

In some specific examples of the present disclosure, as shown in FIGS. 1 to 3, and 9 to 11, the air conditioner outdoor unit 1 further includes an electric control box 800, and the electric control box 800 is arranged in the housing 100, for example, in the first The second chamber 102 is located above the compressor 104. The control board 200 is installed in the electric control box 800 to protect the control board 200 by the electric control box 800. The air duct cover 300 is installed on the electric control box 800 and the air duct cover 300 A heat dissipation air duct 301 is defined together with the control board 200. In this way, the electric control box 800 provides a mounting carrier for the air duct cover 300, and the side surface of the control board 200 without the electronic components 210 is located in the heat dissipation air duct 301 , Further improve the heat dissipation effect of the control board 200.

In some specific embodiments of the present disclosure, as shown in FIGS. 2 and 3, the air duct cover 300 has an air inlet end and an air outlet end, and the air outlet end of the air duct cover 300 is configured with a flaring portion 302, which is expanded The cross-sectional area of the heat dissipation air duct 301 where the mouth 302 is located is larger than the cross-sectional area of the rest of the heat dissipation air duct 301, and the condensing part 420 and the fins 500 on it are located in the flaring part 302, thus, on the one hand, The condensing part 420 and the fin 500 provide a larger accommodating space, and on the other hand, the heat exchange efficiency between the airflow and the condensing part 420 and the fin 500 is improved.

In some specific examples of the present disclosure, as shown in FIGS. 1 to 3, the air conditioner outdoor unit 1 further includes an air inlet 900, which is installed on the air duct cover 300, and the air inlet 900 is respectively connected to the heat dissipation air duct. 301 communicates with the outside of the housing 100, and the air inlet 900 is configured with an air inlet 910. The cross-sectional area of the air inlet 910 gradually decreases in the direction from the heat dissipation air duct 301 to the outside of the housing 100, which can make the air intake more Smooth and increase the air intake.

Those skilled in the art can understand that the air outlet of the outdoor unit 1 of the air conditioner may use the original air outlet of the housing 100, or a separate air outlet may be additionally provided.

In some specific embodiments of the present disclosure, as shown in FIG. 8, the air conditioner outdoor unit 1 further includes a guide plate group 1000.

There are a plurality of heat pipes 400, the guide plate group 1000 is arranged in the heat dissipation air duct 301, and the guide plate group 1000 guides the air flow in the heat dissipation air duct 301 to the condensing parts of the heat pipes 400 respectively. Therefore, by arranging multiple heat pipes 400 and air duct cover 300, the multiple heat pipes 400 and external cold air are used to continuously dissipate heat from the control board 200, which not only has a good heat dissipation effect, but also enables reliable temperature control of the control board 200, and is also comparable. Compared with the cooling method of the refrigerant in the related technology, the structure and control logic are simpler, and the cost can be effectively reduced. In addition, the heat pipe 400 is a closed loop system, which is not controlled by the air conditioning and refrigeration system, and forms an independent closed loop system.

In addition, the heat dissipation air duct 301 is provided with a guide plate group 1000, and the guide plate group 1000 can respectively guide the airflow in the heat dissipation air duct 301 to the condensing part of the multiple heat pipes 400, so that the flow can be drawn according to the positions of the multiple heat pipes 400. Different heat pipes 400 are distinguished by the wind, so as to effectively improve the efficiency of the cold air, thereby improving the heat dissipation efficiency of each heat pipe 400.

In some specific embodiments of the present disclosure, as shown in FIG. 8, the guide plate group 1000 includes a plurality of guide plates 1100 and at least one branch tower 1200.

Each baffle 1100 extends along the length of the heat dissipation air duct 301, and the plurality of baffles 1100 are arranged in one-to-one correspondence with the condensing parts 420 of the plurality of heat pipes 400, and the plurality of baffles 1100 are located on the sides of the heat pipes 400. Upstream of the condensing part 420. The splitter tower 1200 is arranged between adjacent baffles 1100. Wherein, each baffle 1100 guides the airflow in the heat dissipation air duct 301 to both sides of the corresponding condensation part 420 to guide and position the airflow, and the splitter tower 1200 divides the airflow in the heat dissipation air duct 301 to the condensation on both sides. In this way, the airflow can be guided to the heat pipe 400, so that the airflow in the heat dissipation air duct 301 and the condensing portion 420 of the heat pipe 400 can fully exchange heat, so as to improve the utilization rate of cold air.

The figure shows an example in which there are two heat pipes 400 and baffles 1100, and one splitter tower 1200.

Specifically, as shown in FIG. 8, the splitter tower 1200 includes a first splitter plate 1210 and a second splitter plate 1220.

One end of the first splitter plate 1210 and one end of the second splitter plate 1220 are connected, and the distance between the first splitter plate 1210 and the second splitter plate 1220 gradually increases along the airflow direction in the heat dissipation air duct 301, thus, the first The one splitter plate 1210 and the second splitter plate 1220 can guide the airflow to the condensing part 420 of the heat pipe 400 on both sides of the downstream side, so as to prevent the airflow from flowing between adjacent heat pipes 400 and failing to sufficiently exchange heat.

In some specific examples of the present disclosure, as shown in FIG. 8, an end of each deflector 1100 away from the condensing portion 420 is configured with an air induction foot 1110 bent toward the central axis of the heat dissipation air duct 301, and the air induction foot 1110 The airflow can be guided into the airflow channels formed by the baffle 1100 in the heat dissipation air duct 301, thereby increasing the air inlet volume.

Further, as shown in FIG. 8, the first dividing plate 1210 and the second dividing plate 1220 of the deflector 1100 and the dividing tower 1200 are all provided with a string trough 1300. The first splitter plate 1210 and the second splitter plate 1220 of the 1200 are evenly distributed, so that the airflow can be communicated, so that the airflow temperature at the condensing part 420 of each heat pipe 400 is more balanced, thereby improving the uniformity of heat dissipation and avoiding the control board 200 The local temperature is too high.

Among them, in order to facilitate the installation and fixation of the drainage plate assembly 1000, the drainage plate assembly 1000 is installed on the air duct cover 300.

In some specific embodiments of the present disclosure, as shown in FIG. 7, the heat pipe 400 includes a first heat pipe 430.

The first heat pipe 430 has a first evaporation part 431 and a first condensation part 432. The first evaporation part 431 is formed into a U shape, and the first evaporation part 431 contacts the control board 200 to conduct heat, that is, the first heat pipe 430 and the control board 200 The part contacting the heat conduction is U-shaped, and the first condensing portion 432 is provided in the heat dissipation air duct 301. Thus, the first evaporation portion 431 of the first heat pipe 430 is configured in a U shape, and the U-shaped first evaporation portion 431 is used to contact the control board 200 to conduct heat, thereby increasing the heat conduction area and further improving the resistance to the control board 200. Heat dissipation efficiency.

In some specific embodiments of the present disclosure, as shown in FIG. 7, the heat pipe 400 further includes a second heat pipe 440. The second heat pipe 440 has a second evaporating portion 441 and a second condensing portion 442, and the second evaporating portion 441 is configured as L The second condensing part 442 is arranged in the heat dissipation air duct 301. Therefore, the first heat pipe 430 and the second heat pipe 440 can be used to simultaneously dissipate heat to the control board 200 to improve the heat dissipation effect, and the first evaporation portion 431 of the first heat pipe 430 is configured in a U shape, which is similar to the heat conduction area of the control board 200 The second evaporation part 441 of the second heat pipe 440 is configured in an L shape and can be set in a relatively small space on the control board 200, so as to provide a relatively small space for the control board 200. 200 for full heat dissipation.

Among them, the outer diameter of the first heat pipe 430 may be 8mm, and the outer diameter of the second heat pipe 440 may be 6mm.

Specifically, as shown in FIG. 7, the first evaporating portion 431 is located at the middle portion in the longitudinal direction of the first heat pipe 430, and the first condensing portion 432 is located at both ends of the first heat pipe 430 in the longitudinal direction. The second evaporation portion 441 is located at one end of the second heat pipe 440 in the longitudinal direction, and the second condensing portion 442 is located at the other end of the second heat pipe 440 in the longitudinal direction. As a result, the first heat pipe 430 and the second heat pipe 440 aim at different positions of the control board 200, making full use of their high conductivity and structure to efficiently dissipate heat.

In some specific embodiments of the present disclosure, as shown in FIG. 7, the fins 500 are provided in the first condensing part 432 and the second condensing part 442 and are located in the heat dissipation air duct 301. For the first heat pipe 430, both ends are the first condensing part 432, the first condensing part 432 at both ends and the second condensing part 442 of the second heat pipe 440 are installed on the same fin 500, and the number of fins 500 may be more than one. And are arranged at intervals along the length of the first condensation portion 432 and the second condensation portion 442, each fin 500 is provided with a flanged hole 520, and the first heat pipe 430 and the second heat pipe 440 pass through the plurality of fins 500 Flanging holes 520 realize the fixation of a plurality of fins 500. The plurality of fins 500 are arranged at intervals along the length direction of the first heat pipe 430 and the second heat pipe 440, and the distance between adjacent fins 500 is turned over by the flanging holes 520 It is limited to ensure the stability of the relative positions of the plurality of fins 500. The plurality of fins 500 are arranged in a group, and the use of a group of fins 500 can improve the heat dissipation effect of the first condensing part 432 and the second condensing part 442.

In some specific embodiments of the present disclosure, as shown in FIG. 7, the thermally conductive mounting plate 700 is configured with a U-shaped pipe groove 701 and an L-shaped pipe groove 702, the first evaporation part 431 is fitted in the U-shaped pipe groove 701, and the second The evaporation part 441 fits into the L-shaped pipe groove 702, and the heat-conducting mounting plate 700 presses the first evaporation part 431 and the second evaporation part 441 to the control board 200. The heat-conducting mounting plate 700 may be an aluminum alloy plate, and the U-shaped pipe groove 701 and the L-shaped pipe groove 702 may be formed by an extrusion process.

By providing the heat-conducting mounting plate 700, not only can the first evaporating part 431 and the second evaporating part 441 be fixed, so that the first evaporating part 431 and the second evaporating part 441 can be reliably attached to the control board 200, and the heat-conducting mounting plate 700 has Thermal conductivity, so that the surface area of the first evaporation part 431 and the second evaporation part 441 can be fully utilized, and the heat of the control board 200 can be fully transferred to the circumference of the first evaporation part 431 and the second evaporation part 441, thereby improving the heat transfer s efficiency.

Specifically, one side surface of the control board 200 is provided with electronic components 210, including but not limited to IPM (Intelligent Power Module), IGBT (Insulated Gate Bipolar Transistor), diodes, silicon bridges, etc. The thermally conductive mounting board 700 is mounted on The surface of the control board 200 where the electronic component 210 is provided, the thermally conductive mounting board 700 presses the first evaporation part 431 and the second evaporation part 441 against the electronic component 210, between the electronic component 210 and the first evaporation part 431 and The electronic component 210 and the second evaporation part 441 may be coated with thermally conductive silica gel, and the heat generated by the electronic component 210 can be conducted to the first evaporation part 431 and the second evaporation part 441 in time.

Further, as shown in FIG. 7, the surface of the first evaporation part 431 facing the control board 200 and the surface of the second evaporation part 441 facing the control board 200 are configured as a plane 401, so as to ensure that the first evaporation part 431 and the second evaporation part 431 The bonding degree between the part 441 and the electronic component 210 increases the heat exchange area. The surface of the first evaporation part 431 facing away from the control board 200 and the surface of the second evaporation part 441 facing away from the control board 200 may be configured as arc-shaped surfaces that are adapted to the pipe groove 710.

In some specific embodiments of the present disclosure, as shown in FIG. 5, the side surface of the control board 200 facing away from the heat dissipation air duct 301 is provided with electronic components 210, including but not limited to IPM (Intelligent Power Module), IGBT ( Insulated gate bipolar transistors), diodes, silicon bridges, etc. The heat pipe 400 has an evaporation part 410 and a condensation part 420. The evaporation part 410 is in contact with the electronic component 210 to conduct heat. The electronic component 210 and the evaporation part 410 can be coated with thermally conductive silica gel, and the heat generated by the electronic component 210 can be transferred to the evaporation in time The condensing part 410 and the condensing part 420 are arranged in the heat dissipation air duct 301.

Thus, the air duct cover 300 and the control board 200 jointly define a heat dissipation air duct 301, and one side surface of the control board 200 is located in the heat dissipation duct 301, which further improves the heat dissipation effect of the control board 200, and the electronic components 210 are provided On the side surface of the control board 200 facing away from the heat dissipation air duct 301, dust and impurities in the air flow in the heat dissipation air duct 301 can be prevented from accumulating on the surface of the control board 200, contaminating the electronic components 210, thereby preventing The effect of dust increases the service life of the electronic components 210.

In some specific embodiments of the present disclosure, as shown in FIGS. 3 to 5, the heat-conducting mounting plate 700 is installed on the side surface of the control board 200 facing away from the heat dissipation air duct 301, and the heat-conducting mounting plate 700 presses the evaporation part 410 tightly.于Electronic components 210. By providing the heat conducting mounting plate 700, not only can the evaporation part 410 of the heat pipe 400 be fixed, so that the evaporation part 410 and the electronic components 210 can be reliably bonded, but also the heat conduction mounting plate 700 has thermal conductivity, which can make full use of the surface area of the evaporation part 410 , The heat of the electronic component 210 is fully conducted to all parts of the evaporating part 410 in the circumferential direction, thereby improving the efficiency of heat conduction.

In some specific examples of the present disclosure, as shown in FIG. 5, the side surface of the control board 200 provided with the electronic components 210 faces the inside of the electric control box 800, so that the electric control box 800 is used to protect the control board 200 and its upper surface.的电子components 210.

In some specific examples of the present disclosure, in order to further improve the heat dissipation efficiency, there are multiple heat pipes 400, the evaporation portion 410 of each heat pipe 400 is in contact with the electronic component 210 to conduct heat, and the condensation portion 420 of each heat pipe 400 is provided for heat dissipation. Inside the air duct 301.

In other specific embodiments of the present disclosure, as shown in FIGS. 9-12, the air conditioner outdoor unit 1 according to the embodiment of the present disclosure includes a housing 100, a control panel 200, an air duct cover 300, a heat pipe 400, and a first air guide. The device 600 and the second air guiding device 2000.

The control board 200 is arranged in the housing 100, the air duct cover 300 is arranged in the housing 100 and defines a heat dissipation air duct 310 in the housing 100, and the heat pipe 400 has an evaporating part and a condensing part, and the evaporating part and the control board 200 Contact heat conduction, the condensing part is arranged in the heat dissipation air duct 310, the first air guiding device 600 is installed in the housing 100 and outside the heat dissipation air duct 310, and the second air guiding device 2000 is installed in the heat dissipation air duct 310.

Wherein, the outside air intake of the housing 100 may pass through the original outside air intake, or a separate outside air intake may be additionally provided to facilitate the introduction of outside air into the housing 100 and increase the heat dissipation effect.

For example, the second air guiding device 600 is disposed in the second chamber 102 and the second air guiding device 600 is located above the compressor 104.

Among them, the first air guide device 600 is used to accelerate the air flow rate in the first chamber 101 of the air conditioner outdoor unit 1 and increase the heat exchange efficiency of the heat exchanger 103. In addition, the heat dissipation air duct 310 is connected to the first chamber 101, and the air flow rate in the first chamber 101 is accelerated, thereby speeding up the air flow rate of the heat dissipation air duct 310, and also increasing the heat dissipation efficiency of the heat pipe 400.

According to the air conditioner outdoor unit 1 of the embodiment of the present disclosure, the heat pipe 400 and the air duct cover 300 are provided, so that the cold air outside the heat pipe 400 and the heat dissipation air duct 310 is used to continuously dissipate heat from the control board 200. 200 performs reliable temperature control, and compared with the cooling method of the related technology, the structure and control logic are simple, which can effectively reduce the cost. In addition, the heat pipe 400 is a closed loop system, which is not controlled by the air conditioning and refrigeration system, and forms an independent closed loop system.

In addition, the second air guiding device 2000 can increase the efficiency of actively introducing cold air into the heat dissipation air duct 310, increase the flow speed and air volume of the airflow on the surface of the heat pipe 400, increase the heat exchange efficiency of the heat pipe 400, and further increase the heat dissipation efficiency.

In this way, the outdoor unit of the air conditioner according to the embodiment of the present disclosure has the advantages of good heat dissipation effect and low cost.

According to some specific embodiments of the present disclosure, as shown in FIGS. 11 and 12, the air duct cover 300 is provided with an air inlet 320 and an air outlet 330, and the second air guiding device 2000 is installed on the air duct cover 300 and located at the air inlet. 320 locations. Through the arrangement of the air inlet 320 and the air outlet 330, the air flow rate in the heat dissipation air duct 310 is further increased, and the heat exchange efficiency of the heat pipe 400 is increased. In addition, the second air guide device 2000 is installed on the air duct cover 300. Since the air duct cover 300 has a certain structural strength spontaneously, the installation stability of the second air guide device 2000 can be increased. Moreover, the second air guiding device 2000 is located at the air inlet 320 to facilitate contact between the second air guiding device 2000 and the air outside the heat dissipation air duct 310, increasing the working efficiency of the second air guiding device 2000, and further improving the heat dissipation efficiency.

According to some specific embodiments of the present disclosure, as shown in FIG. 9, FIG. 11 and FIG.

For example, the air inlet 320 may be circular, and the air outlet 330 may be an open opening of the air duct cover 300, so as to ensure the stability of the installation of the second air guide device 2000 and save the cost of the air duct cover 300. Cost of production. By arranging the air inlet 320 and the air outlet 330 opposite to each other, the resistance to the air flow in the heat dissipation air duct 310 is reduced, thereby increasing the efficiency of air circulation in the heat dissipation air duct 310, and further improving the heat dissipation efficiency. In addition, the air inlet 320 and the air outlet 330 are both located in the housing 100, thereby reducing the probability of dust and impurities entering the heat dissipation air duct 310, thereby playing a dust-proof effect and improving the service life of electrical components of the outdoor unit 1 of the air conditioner.

According to some specific embodiments of the present disclosure, as shown in FIG. 11, the second air guiding device 2000 includes a motor 2100 and an impeller 2200. The motor 2100 is installed on the air duct cover 300 through the bracket 2300, the impeller 2200 is installed on the motor 2100 and is located in the air duct cover 300, and the impeller 2200 is driven to rotate by the motor 2100.

Among them, the motor 2100 and the impeller 2200 can be an integrated structure, which also reduces installation steps and improves production efficiency. The impeller 2200 is located in the air duct cover 300, which can prevent the impeller 2200 from colliding with other parts of the air conditioner outdoor unit 1 when the air duct cover 300 is installed, and save space.

According to some specific embodiments of the present disclosure, as shown in FIG. 10, the bracket 2300 includes a central portion 2310 and a plurality of mounting arms 2320. The motor 2100 is installed in the central part 2310. One end of each installation arm 2320 is connected to the central part 2310 and the other end is connected to the air duct cover 300. A plurality of installation arms 2320 are arranged at intervals along the circumferential direction of the central part 2310. Wherein, the bracket 2300 may be welded or integrally formed by the air duct cover 300. This increases the stability of the connection between the bracket 2300 and the air duct cover 300, thereby improving the stability of the installation of the second air guiding device 2000, ensuring the reliability of the air conditioner outdoor unit 1, and the wind resistance is small.

According to some specific embodiments of the present disclosure, as shown in FIG. 12, the inner surface of the air duct cover 300 is provided with a drainage ring 340 arranged around the air inlet 320, the drainage ring 340 surrounds the drainage cavity 350, and the cross section of the drainage cavity 350 The area gradually increases toward the inside of the heat dissipation air duct 310. Wherein, the drainage ring 340 extends from the air inlet 320 toward the air outlet 330. In this way, the air intake can be smoother and the air intake volume can be increased.

According to some specific embodiments of the present disclosure, as shown in FIG. 12, the drainage ring 340 includes a first arc-shaped portion 341, a second arc-shaped portion 342, an upper straight portion 343 and a lower straight portion 344.

The first arc-shaped portion 341 and the second arc-shaped portion 342 are spaced apart in the horizontal direction. Two ends of the straight portion 344 are respectively connected to the lower end of the second arc-shaped portion 342 and the lower end of the second arc-shaped portion 342.

In this way, the space required for the installation of the drainage ring 340 can be reduced, thereby avoiding increasing the volume of the air duct cover 300, and improving the space utilization rate of the air conditioner outdoor unit 1. In addition, the upper straight portion 343 and the lower straight portion 344 can adapt to the height of the air duct cover 300, reducing the size of the air duct cover 300 in the height direction. The arrangement of the first arc-shaped portion 341 and the second arc-shaped portion 342 can further smooth the air intake and increase the air intake volume.

Other configurations of the air conditioner outdoor unit 1 according to the embodiment of the present disclosure are known to those of ordinary skill in the art, and will not be described in detail here.

In the description of this specification, the description with reference to the terms "specific embodiment", "specific example", etc. means that the specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or In the example. In this specification, the schematic representations of the above-mentioned terms do not necessarily refer to the same embodiment or example.

Although the embodiments of the present disclosure have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and modifications can be made to these embodiments without departing from the principle and purpose of the present disclosure. The scope of the present disclosure is defined by the claims and their equivalents.

Claims

An outdoor unit of an air conditioner, characterized in that it comprises:

case;

A control board, the control board is arranged in the housing;

An air duct cover, the air duct cover is arranged in the housing and defines a heat dissipation air duct in the housing;

A heat pipe, the heat pipe having an evaporating part and a condensing part, the evaporating part is in contact with the control board to conduct heat, and the condensing part is arranged in the heat dissipation air duct;

Fins, the fins are provided in the condensing part of the heat pipe and are located in the heat dissipation air duct, and the fins are provided with heat dissipation windows;

The first air guiding device is installed in the housing.
The air conditioner outdoor unit of claim 1, wherein the fin is provided with a plurality of the heat dissipation windows, each of the heat dissipation windows extends along the length of the fin, and the plurality of heat dissipation windows The fins are arranged in multiple groups, and the multiple groups of the heat dissipation windows are respectively arranged in an array along the length direction and the width direction of the fin.
The air conditioner outdoor unit according to claim 1, characterized in that there are a plurality of said fins, each said fin is provided with a flanging hole, and said heat pipe penetrates through the flanging of said plurality of fins. A plurality of the fins are arranged at intervals along the length direction of the heat pipe.
The air conditioner outdoor unit according to claim 3, wherein the distance between adjacent fins is 0.5 mm to 10 mm.
The outdoor unit of the air conditioner according to claim 1, further comprising:

A heat-conducting installation board, the heat-conducting installation board is installed on the control board and is configured with a pipe groove, the evaporation part is fitted in the pipe groove, and the heat-conducting installation plate presses the evaporation part against the control board .
The air conditioner outdoor unit according to claim 5, wherein a surface of the evaporating portion facing the control panel is configured as a plane.
The outdoor unit of the air conditioner according to claim 5, wherein electronic components are provided on one side surface of the control board, and the heat-conducting mounting board is installed on the surface of the control board on which the electronic components are provided. The thermally conductive mounting plate presses the evaporation part against the electronic component.
The outdoor unit of the air conditioner according to claim 1, further comprising:

An electric control box, the electric control box is arranged in the housing, the control board is installed in the electric control box, and the air duct cover is installed in the electric control box and defined together with the control board Out of the heat dissipation air duct.
The air conditioner outdoor unit according to claim 1, wherein the air duct cover plate has an air inlet end and an air outlet end, the air outlet end of the air duct cover plate is configured with a flaring part, and the condensing part The fins thereon are located in the flared part.
The outdoor unit of the air conditioner according to claim 1, further comprising:

An air inlet, the air inlet is installed on the air duct cover, the air inlet is respectively communicated with the heat dissipation air duct and the outside of the housing, the air inlet is configured with an air inlet, so The cross-sectional area of the air inlet gradually decreases in the direction from the heat dissipation air duct to the outside of the housing.
The outdoor unit of the air conditioner according to claim 1, further comprising:

The guide plate group, the heat pipes are multiple, and the guide plate group is arranged in the heat dissipation air duct and guides the airflow in the heat dissipation air duct to the condensing parts of the plurality of heat pipes.
The outdoor unit of the air conditioner according to claim 11, wherein the guide plate group comprises:

A plurality of baffles, each of the baffles extends along the length of the heat dissipation air duct, and the plurality of baffles are arranged in a one-to-one correspondence with the condensing parts of the plurality of heat pipes and are located in a plurality of Upstream of the condensing part of the heat pipe, each of the baffles guides the airflow in the heat dissipation air duct to both sides of the corresponding condensing part;

At least one splitter tower, the splitter tower is arranged between the adjacent guide plates, and the splitter tower splits the airflow in the heat dissipation air duct to the condensation parts on both sides.
The outdoor unit of the air conditioner according to claim 12, wherein the splitter tower comprises:

The first splitter plate and the second splitter plate, one end of the first splitter plate and one end of the second splitter plate are connected, and the distance between the first splitter plate and the second splitter plate is along the The direction of the airflow in the heat dissipation air duct gradually increases.
The outdoor unit of the air conditioner according to claim 12, wherein an end of each of the baffle plates away from the condensing portion is configured with an air guide foot bent toward the central axis of the heat dissipation air duct.
The outdoor unit of the air conditioner according to claim 12, wherein the baffle plate and the branch tower are both provided with stringing grooves.
The air conditioner outdoor unit according to claim 11, further comprising:

An electric control box, the electric control box is arranged in the housing, the control board is installed in the electric control box, and the air duct cover is installed in the electric control box and defined together with the control board The heat dissipation air duct is exited, and the guide plate group is installed on the air duct cover plate.
The outdoor unit of the air conditioner according to claim 1, wherein the heat pipe comprises:

A first heat pipe, the first heat pipe has a first evaporating part and a first condensing part, the first evaporating part is configured in a U shape and contacts the control board to conduct heat, and the first condensing part is provided on the heat sink Inside the air duct.
The outdoor unit of the air conditioner according to claim 17, wherein the heat pipe further comprises:

The second heat pipe, the second heat pipe has a second evaporating part and a second condensing part, the second evaporating part is configured in an L shape and contacts the control board to conduct heat, and the second condensing part is provided on the heat sink Inside the air duct.
The air conditioner outdoor unit of claim 18, wherein the first evaporating portion is located in the middle of the length direction of the first heat pipe, and the first condensing portion is located in the length direction of the first heat pipe The ends of

The second evaporating portion is located at one end of the second heat pipe in the longitudinal direction, and the second condensing portion is located at the other end of the second heat pipe in the longitudinal direction.
The air conditioner outdoor unit of claim 18, further comprising:

A heat-conducting installation board, the heat-conducting installation board is installed on the control board and is configured with a U-shaped pipe groove and an L-shaped pipe groove, the first evaporating portion is fitted in the U-shaped pipe groove, and the second evaporating portion Fitted in the L-shaped pipe groove, the thermally conductive mounting plate presses the first evaporating part and the second evaporating part to the control board.
The outdoor unit of the air conditioner according to claim 1, wherein electronic components are provided on a surface of the control board facing away from the heat dissipation air duct.
The air conditioner outdoor unit according to claim 21, further comprising:

A heat-conducting installation board, the heat-conducting installation board is installed on the side surface of the control board facing away from the heat dissipation air duct and is configured with a pipe groove, the evaporation part is fitted in the pipe groove, and the heat-conducting installation plate The evaporation part is pressed against the electronic component.
The air conditioner outdoor unit according to claim 21, further comprising:

An electric control box, the electric control box is arranged in the housing, the control board is installed in the electric control box, and the side surface of the control board on which the electronic components are arranged faces the electric control Inside the box, the air duct cover is installed on the electric control box.
The outdoor unit of the air conditioner according to claim 1, further comprising:

The second air guide device is installed in the heat dissipation air duct.
The air conditioner outdoor unit of claim 24, wherein the air duct cover is provided with an air inlet and an air outlet, and the second air guiding device is installed on the air duct cover and located at the air inlet Place.
The outdoor unit of the air conditioner according to claim 25, wherein the second air guide device comprises:

A motor, the motor is installed on the air duct cover through a bracket;

The impeller is installed in the motor and located in the air duct cover, and the impeller is driven to rotate by the motor.
The air conditioner outdoor unit of claim 25, wherein the inner surface of the air duct cover is provided with a drainage ring arranged around the air inlet, the drainage ring surrounds a drainage cavity, and the drainage cavity The cross-sectional area gradually increases toward the inside of the heat dissipation air duct.