CN106440101A - Outdoor unit of air conditioner and air conditioner - Google Patents

Abstract

The invention discloses an outdoor unit of an air conditioner and the air conditioner. The outdoor unit includes: an outdoor casing; a partition, which is arranged in the outdoor casing to separate the outdoor casing into a first chamber and a second chamber; a compressor and an outdoor fan, and the compressor is arranged in the first chamber, The outdoor fan is located in the second chamber; the electric control device includes an electric control box, an electric control board, power devices, passive devices and a radiator, and the electric control box is provided with an air inlet located in the first chamber and a The air outlet of the second chamber is provided with a first waterproof structure positioned on the outside of the air outlet on the outer peripheral wall of the electric control box. The first waterproof structure has an air guide cavity, and the air guide cavity communicates with the air outlet. The air outlet is located on the side of the first waterproof structure away from the outdoor fan. The outdoor unit of the invention can improve the heat dissipation effect of the power device and the passive device, prolong the service life of the electric control device, ensure the reliability of the operation of the electric control device, and have good waterproof effect.

Description

Outdoor unit of air conditioner and air conditioner

technical field

The invention relates to the refrigeration field, in particular to an outdoor unit of an air conditioner and the air conditioner.

Background technique

In the existing electronically controlled heat dissipation structure of the outdoor unit of the air conditioner, the power devices can be concentrated and distributed on the radiator, and the contact area with the air can be increased through the radiator to improve the heat dissipation effect; while other passive devices cannot be installed with heat sinks, they can only rely on air contact Natural heat dissipation. In the case of outdoor high temperature and low voltage power supply, the heat generation of passive devices increases, so that the heat dissipation of these devices still cannot meet the heat design standards. In addition, the waterproof effect of the electronically controlled cooling structure is poor. When the fan of the outdoor unit is working, it is easy to blow water in rainy and snowy weather and/or condensed water of the heat exchanger to the electronically controlled cooling structure, which affects the normal use of the electronically controlled cooling structure. .

Contents of the invention

The present invention aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, the present invention proposes an outdoor unit of an air conditioner, which can accelerate the air flow in the electric control box, improve the heat dissipation effect of power devices and passive devices, and improve the heat dissipation effect of the electric control device.

The present invention also proposes an air conditioner provided with the above-mentioned outdoor unit.

An outdoor unit of an air conditioner according to an embodiment of the present invention includes: an outdoor casing; a partition provided in the outdoor casing to separate the outdoor casing into a first chamber and a second chamber ; A compressor and an outdoor fan, the compressor is arranged in the first chamber, the outdoor fan is arranged in the second chamber, the side wall of the first chamber is provided with ventilation holes; electric control device, the electric control device includes an electric control box, an electric control board, a power device, a passive device and a heat sink, the electric control box is set on the partition, and the electric control board and the heat sink are set on the In the electric control box, the power device and the passive device are respectively arranged on the electric control board, the radiator includes a heat dissipation pipe for circulating refrigerant, the power device is in contact with the radiator, The electric control box is provided with an air inlet located in the first chamber and an air outlet located in the second chamber, and an air outlet located outside the air outlet is provided on the peripheral wall of the electric control box. A first waterproof structure, the first waterproof structure has an air guide chamber inside, the air guide chamber communicates with the air outlet, and the air outlet of the air guide chamber is located in the first waterproof structure away from the outdoor side of the fan.

According to the outdoor unit of the air conditioner in the embodiment of the present invention, on the one hand, the outdoor casing is completely divided into two chambers due to the setting of the partition plate. When the outdoor fan in the second chamber rotates, the second chamber The air pressure in the room is reduced, which will make the air in the first chamber enter the electric control box and accelerate the flow from the air outlet to the second chamber, take away the heat in the electric control box, and accelerate the air flow in the electric control box , improve the heat dissipation effect of power devices and passive devices, and prolong the service life of the electric control device; on the other hand, the first waterproof structure located outside the air outlet is set on the outer peripheral wall of the electric control box, which can avoid when the outdoor fan is working. Water flows into the electric control box and affects the normal use of power devices and passive devices, ensuring the reliability of the electric control device and good waterproof effect.

According to some embodiments of the present invention, the first waterproof structure is formed in a substantially cuboid shape.

According to some embodiments of the present invention, the first waterproof structure is arranged on the bottom wall of the electric control box, and the air outlet is arranged on a side of the first waterproof structure facing the partition.

According to some embodiments of the present invention, the first waterproof structure is formed in a substantially "L" shape.

According to some embodiments of the present invention, the vertical part of the first waterproof structure is fixed on the bottom wall of the electric control box, and the horizontal part of the first waterproof structure is connected to the lower end of the vertical part along the Extending towards the direction of the partition, the air outlet is provided on a side of the horizontal part and/or the vertical part close to the electric control box.

According to some embodiments of the present invention, the ventilation hole is a through-hole structure provided in the center or lower part of the side wall of the first chamber.

According to some embodiments of the present invention, the outer wall of the first chamber is provided with a second waterproof structure located outside the ventilation hole.

According to some embodiments of the present invention, the second waterproof structure is formed in a substantially "L" shape, the horizontal plate of the second waterproof structure is fixed on the first chamber, and the vertical plate of the second waterproof structure A plate is located on the outside of the vent.

According to some embodiments of the present invention, the first chamber and the second chamber communicate only through the air outlet and the air inlet.

An air conditioner according to an embodiment of the present invention includes an outdoor unit of the air conditioner according to the above-mentioned embodiments of the present invention.

An air conditioner according to an embodiment of the present invention. By providing the outdoor unit of the air conditioner according to the above embodiments of the present invention, it is beneficial to improve the service life of the outdoor unit of the air conditioner.

Description of drawings

Fig. 1 is a schematic structural diagram of an outdoor unit according to some embodiments of the present invention;

Fig. 2 is a front view of an outdoor unit according to some embodiments of the present invention;

Fig. 3 is a schematic diagram of the connection between the electric control box and the first waterproof structure according to some embodiments of the present invention;

Fig. 4 is a schematic diagram of another direction of the electric control box and the first waterproof structure according to some embodiments of the present invention;

5 is a schematic diagram of an electronic control device according to some embodiments of the present invention;

Fig. 6 is a schematic diagram of another direction of the electric control device according to some embodiments of the present invention.

Reference signs:

outdoor unit 100;

Outdoor shell 1;

The partition 2; the first chamber 21; the second chamber 22;

Compressor 3; Outdoor fan 4;

Electric control device 5; electric control box 51; air inlet 511; air outlet 512; electric control board 52; power device 53; passive device 54; radiator 55; heat dissipation pipe 551;

The first waterproof structure 6 ; the air outlet 61 .

detailed description

Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or element Must be in a particular orientation, be constructed in a particular orientation, and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; can be mechanically connected, can also be electrically connected or can communicate with each other; can be directly connected, can also be indirectly connected through an intermediary, can be the internal communication of two components or the interaction relationship between two components, Unless expressly defined otherwise. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

In the present invention, unless otherwise clearly specified and limited, the first feature may be in direct contact with the first feature or the first and second feature may be in direct contact with the second feature through an intermediary. touch. Moreover, "above", "above" and "above" the first feature on the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "beneath" and "beneath" the first feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontally than the second feature.

An outdoor unit 100 of an air conditioner according to an embodiment of the present invention will be described below with reference to FIGS. 1-6 . The outdoor unit 100 of the air conditioner and the indoor unit of the air conditioner form an air conditioner for adjusting the indoor ambient temperature.

As shown in FIGS. 1-2 , an outdoor unit 100 of an air conditioner according to an embodiment of the present invention may include: an outdoor casing 1 , a partition 2 , a compressor 3 , an outdoor fan 4 and an electric control device 5 .

Specifically, the partition plate 2 is arranged in the outdoor casing 1 to separate the outdoor casing 1 into a first chamber 21 and a second chamber 22, the compressor 3 is arranged in the first chamber 21, and the outdoor fan 4 is arranged in the In the second chamber 22 , ventilation holes are provided on the sidewall of the first chamber 21 . For example, the ventilation hole is provided on the side wall of the first chamber 21 away from the second chamber 22 , and air can flow into the first chamber 21 through the ventilation hole.

As shown in Figures 5 and 6, the electric control device 5 includes an electric control box 51, an electric control board 52, a power device 53, a passive device 54 and a radiator 55, the electric control box 51 is located on the partition 2, and the electric control board 52 and radiator 55 are arranged in the electric control box 51, and power device 53 and passive device 54 are respectively arranged on the electric control board 52, and radiator 55 comprises the cooling pipe 551 (black among Fig. 5-Fig. The solid line arrow indicates the direction of the refrigerant entering and exiting the cooling pipe 551), and the power device 53 is in contact with the radiator 55, so that when the refrigerant flows through the cooling pipe 551, the heat of the power device 53 can be taken away so as to cool down the power device 53 and avoid power consumption. The device 53 is overheated and burned out.

As shown in FIGS. 3 and 4 , the electric control box 51 is provided with an air inlet 511 located in the first chamber 21 and an air outlet 512 located in the second chamber 22 . Thus, when the outdoor fan 4 in the second chamber 22 rotates, the air pressure in the second chamber 22 decreases, and the air in the external environment can enter the first chamber 21 through the ventilation hole, and the first chamber 21 The air inside enters the electric control box 51 through the air inlet 511 on the electric control box 51, and the air entering the electric control box 51 performs heat exchange with the power device 53 and the passive device 54 to cool the power device 53 and the passive device 54 To dissipate heat, the air after heat exchange is discharged into the second chamber 22 from the air outlet 512, thereby accelerating the air flow in the electric control box 51, that is to say, the space in the electric control box 51 limits the passive The heat dissipation channel of the device 54 communicates with the air inlet 511 and the air outlet 512 . The air outside the outdoor casing 1 can enter the first chamber 21 through the ventilation hole, which can accelerate the air flow in the outdoor casing 1 .

Preferably, the first chamber 21 and the second chamber 22 communicate only through the air outlet 512 and the air inlet 511 . Therefore, the air in the first chamber 21 can only flow to the second chamber 22 through the air inlet 511 and the air outlet 512 , which is beneficial to increase the amount of air entering the electric control box 51 and improve the heat dissipation effect.

It can be understood that the power device 53 may include components such as intelligent power modules, IGBTs, rectifier bridges, and fast recovery diodes, and the passive device 54 may include components such as common-mode inductors, PFC inductors, and electrolytic capacitors.

As shown in Figures 1 and 2, a first waterproof structure 6 positioned outside the air outlet 512 is provided on the outer peripheral wall of the electric control box 51, and the first waterproof structure 6 has an air guide chamber inside, and the air guide chamber is connected to the air guide chamber. The air outlet 512 is connected, and the air outlet 61 of the air guide chamber is located on the side of the first waterproof structure 6 away from the outdoor fan 4, so that when the outdoor fan 4 is working, water can be prevented from flowing into the electric control box 51 and affecting the power devices. The normal use of 53 and passive device 54 has guaranteed the reliability of electric control device 5 work, and waterproof effect is good.

According to the outdoor unit 100 of an air conditioner according to the embodiment of the present invention, on the one hand, the outdoor casing 1 is completely divided into two chambers due to the setting of the partition plate 2. When the outdoor fan located in the second chamber 22 4 When rotating, the air pressure in the second chamber 22 decreases, so that the air in the first chamber 21 enters the electric control box 51 and accelerates to flow from the air outlet 512 to the second chamber 22, taking away the electricity The heat in the control box 51 accelerates the air flow in the electric control box 51, improves the heat dissipation effect of the power device 53 and the passive device 54, and prolongs the service life of the electric control device 5; The first waterproof structure 6 located on the outside of the air outlet 512 is arranged on the top, and when the outdoor fan 4 is working, it can prevent water from flowing into the inside of the electric control box 51 and affect the normal use of the power device 53 and passive device 54, ensuring that the electric control device 5 work reliability, waterproof effect is good.

Optionally, as shown in Fig. 1 and Fig. 2, the first waterproof structure 6 is formed in a substantially cuboid shape. Therefore, the structure is simple. Specifically, the cuboid-shaped first waterproof structure 6 is arranged on the bottom wall of the electric control box 51, and the air outlet 61 is arranged on the side of the first waterproof structure 6 facing the partition plate 2, thereby effectively Prevent water from entering into the electric control box 51 and improve the working reliability of the electric control device 5 .

Of course, the present invention is not limited thereto, and the first waterproof structure 6 may also be formed in other shapes, such as a cube shape. Optionally, the first waterproof structure 6 is formed in a substantially "L" shape. Specifically, the vertical part of the first waterproof structure 6 is fixed on the bottom wall of the electric control box 51, the horizontal part of the first waterproof structure 6 is connected to the lower end of the vertical part and extends along the direction toward the partition 2, and the air exhaust The opening 61 is provided on the side of the horizontal part and/or the vertical part close to the electric control box 51, that is to say, the air exhaust port 61 can be provided on the side of the vertical part close to the electric control box 51, such as air exhaust The opening 61 is set on the side of the vertical part facing the partition plate 2, and the air outlet 61 can also be set on the side of the horizontal part close to the electric control box 51. For example, the air outlet 61 can be set on the side of the horizontal part facing the electric control box One side of the control box 51 or the side facing the partition 2, or the air exhaust port 61 is provided on the vertical part and the horizontal part at the same time, the side close to the electric control box 51, for example, the air exhaust port 61 is respectively provided on the vertical part The side facing the partition 2 and the side of the horizontal part facing the partition 2.

According to some embodiments of the present invention, the ventilation hole is a through-hole structure provided in the center or lower part of the side wall of the first chamber 21 . Therefore, the structure of the ventilation hole is simple, which can ensure that the air pressure in the first chamber 21 is equivalent to the external air pressure. When the outdoor fan 4 in the second chamber 22 rotates, the air pressure in the first chamber 21 is guaranteed to be higher than that in the second chamber. 22, so that the air will accelerate from the first chamber 21 to the second chamber 22 through the heat dissipation channel in the electric control box 51 under the action of pressure. At the same time, the air outside the outdoor casing 1 can enter the outdoor unit 100, and the temperature of the external air is lower than the temperature of the gas in the outdoor casing 1, so that the temperature in the electric control box 51 can be reduced more effectively, and the power device 53 can be improved. And the heat dissipation effect of the passive device 54. In addition, the ventilation hole is arranged at the center or lower part of the side wall of the first chamber 21 , so as to prevent the water outside the casing from directly entering the outdoor unit 100 and affecting the normal operation of the outdoor unit 100 .

Further, the outer wall of the first chamber 21 is provided with a second waterproof structure (not shown) located outside the ventilation hole. Therefore, by setting the second waterproof mechanism, it is possible to further prevent the water outside the housing from entering the outdoor unit 100 , thus ensuring the normal operation of the outdoor unit 100 .

Optionally, the second waterproof structure is formed in a substantially "L" shape, the horizontal plate of the second waterproof structure is fixed on the first chamber 21, and the vertical plate of the second waterproof structure is located outside the ventilation hole. Water in the vertical direction can be prevented from entering the outdoor unit 100 by fixing the horizontal plate on the first chamber 21, and the vertical plate is located on the outside of the ventilation hole, which can prevent water flowing down from the horizontal plate from entering the outdoor casing 1. At the same time, it can also prevent part of the water outside the casing from being blown into the outdoor casing 1 when there is wind outside. The "L" type waterproof structure design ensures the waterproof effect and prevents the water outside the casing from entering into the outdoor casing 1. The normal operation of the outdoor unit 100 is affected. At the same time, the structure of the second waterproof structure is simplified.

According to a further embodiment of the present invention, the outdoor unit 100 further includes an air guide baffle, and two ends of the air guide baffle cooperate with the ventilation hole and the air inlet 511 to guide air to the air inlet 511 . Therefore, it is ensured that the air entering the first chamber 21 from the ventilation hole directly flows along the air guide partition to the air inlet 511 of the electric control box 51 to enter the interior of the electric control box 51, increasing the air flow rate in the electric control box 51 At the same time, the temperature of the air entering the first chamber 21 from the ventilation hole is lower than the temperature inside the outdoor housing 1, thereby improving the heat exchange efficiency between the air and the power device 53 and the passive device 54, and further improving the power device 53 and the passive device 54. The heat dissipation effect of the device 54.

According to some embodiments of the present invention, the air outlet 512 is set directly to the passive device 54 . Therefore, the contact area between the passive device 54 and the external air is maximized, and the heat exchange efficiency is also maximized.

According to some embodiments of the present invention, the electric control device 5 is placed above the partition 2 . Thus, the assembly of the electronic control device 5 is facilitated. Of course, it can be understood that the placement method of the electronic control device 5 is not limited thereto, for example, a placement hole may also be provided in the middle of the partition 2, and the electronic control device 5 may be placed in the placement hole.

The air conditioner according to the embodiment of the present invention includes the outdoor unit 100 of the air conditioner according to the above embodiments of the present invention.

An air conditioner according to an embodiment of the present invention. By providing the outdoor unit 100 of the air conditioner according to the above embodiments of the present invention, it is beneficial to improve the service life of the outdoor unit 100 of the air conditioner.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (10)

1. An outdoor unit of an air conditioner, comprising: outdoor housing; a partition provided in the outdoor housing to divide the outdoor housing into a first chamber and a second chamber; A compressor and an outdoor fan, the compressor is arranged in the first chamber, the outdoor fan is arranged in the second chamber, and the side wall of the first chamber is provided with ventilation holes; An electric control device, the electric control device includes an electric control box, an electric control board, a power device, a passive device and a heat sink, the electric control box is arranged on the partition, and the electric control board and the heat sink Located in the electric control box, the power device and the passive device are respectively arranged on the electric control board, the radiator includes a heat dissipation pipe for circulating refrigerant, and the power device and the radiator contact, the electric control box is provided with an air inlet located in the first chamber and an air outlet located in the second chamber, and an air outlet located in the air outlet is provided on the outer peripheral wall of the electric control box The first waterproof structure on the outside, the first waterproof structure has an air guide chamber, the air guide chamber communicates with the air outlet, and the air outlet of the air guide chamber is located far away from the first waterproof structure. One side of the outdoor fan. 2. The outdoor unit of an air conditioner according to claim 1, wherein the first waterproof structure is formed in a substantially rectangular parallelepiped shape. 3. The outdoor unit of an air conditioner according to claim 1, wherein the first waterproof structure is arranged on the bottom wall of the electric control box, and the air outlet is arranged on the first waterproof structure the side facing the bulkhead. 4. The outdoor unit of an air conditioner according to claim 1, wherein the first waterproof structure is formed in a substantially "L" shape. 5. The outdoor unit of an air conditioner according to claim 4, wherein the vertical part of the first waterproof structure is fixed on the bottom wall of the electric control box, and the horizontal part of the first waterproof structure Connected to the lower end of the vertical portion and extending toward the partition, the air outlet is provided on the horizontal portion and/or a side of the vertical portion close to the electric control box. 6 . The outdoor unit of an air conditioner according to claim 1 , wherein the ventilation hole is a through-hole structure provided at the center or lower part of the side wall of the first chamber. 7 . The outdoor unit of an air conditioner according to claim 1 , wherein a second waterproof structure located outside the ventilation hole is provided on the outer wall of the first chamber. 8. The outdoor unit of an air conditioner according to claim 7, wherein the second waterproof structure is formed in a substantially "L" shape, and the horizontal plate of the second waterproof structure is fixed in the first chamber Above, the vertical plate of the second waterproof structure is located outside the ventilation hole. 9. The outdoor unit of an air conditioner according to any one of claims 1-8, wherein the first chamber and the second chamber communicate only through the air outlet and the air inlet . 10. An air conditioner, characterized by comprising the outdoor unit of the air conditioner according to any one of claims 1-9.