Air conditioner outdoor unit and air conditioner

Abstract

This application relates to the field of air conditioning equipment technology and discloses an outdoor unit for an air conditioner, comprising: a housing with an internal cavity, the housing including a front panel at the front and a side panel at the side; a partition disposed within the housing, dividing the cavity into a fan compartment and a compressor compartment, wherein a heat exchanger and a fan are disposed in the fan compartment, and a compressor is disposed in the compressor compartment; an electrical control box disposed on the top or side of the partition, wherein a chip element is disposed in the electrical control box; and a first heat dissipation duct disposed within the fan compartment or the compressor compartment, wherein the first heat dissipation duct includes a first heat dissipation air inlet opened on the front panel or the side panel to introduce ambient temperature air from the first heat dissipation air inlet to dissipate heat from the chip element. This application also discloses an air conditioner.

Description

Technical Field

[0001] This application relates to the field of air conditioning equipment technology, such as an outdoor air conditioning unit and an air conditioner. Background Technology

[0002] Inverter air conditioners have become the mainstream in the air conditioning industry, but with the continued occurrence of high temperatures in recent years, with summer temperatures reaching 42°C or even close to 50°C across the globe, air conditioners failing to cool or experiencing reduced cooling capacity have become new complaints from users. To address these user pain points, air conditioning companies are focusing their research and development on air conditioners that maintain cooling performance even under high temperatures.

[0003] The inverter chip is a crucial component in inverter air conditioners, determining the compressor's operating frequency. A higher compressor frequency results in stronger cooling capacity in summer, but this also leads to a surge in heat generation from components on the control board. The main heat-generating components in the inverter control system include four power devices: IPM, IGBT, diodes, and a rectifier bridge, as well as inductors, reactance, capacitors, the fan IPM, and internal circuitry on the control board. With advancements in semiconductor technology, chip designs have become more compact, increasing the heat flux density of components, and miniaturizing the control board and its components. Simultaneously, the compressor compartment's ambient temperature significantly impacts the stable operation of the control components and the compressor. High temperatures can cause a sharp increase in compressor casing temperature and exhaust temperature, potentially leading to compressor shutdown due to high temperature. Therefore, the compressor compartment, inverter control system, and their components suffer from high temperatures, high heat flux density, and high power consumption, severely restricting the air conditioner's operational safety and high-temperature cooling capacity. Solving the high-temperature heat dissipation problem of the compressor compartment, inverter control system, and components is crucial for ensuring consistent high-temperature cooling performance, which is of paramount importance in the air conditioning industry.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art: Existing radiators have limited heat dissipation capacity for the chip components of the outdoor unit of the air conditioner, which affects the high-temperature cooling capacity and operational safety of the air conditioner.

[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0006] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0007] This disclosure provides an outdoor air conditioning unit and an air conditioner to address the problem that existing radiators have limited heat dissipation capacity for the chip components of the outdoor air conditioning unit, which affects the high-temperature cooling capacity and operational safety of the air conditioner.

[0008] In some embodiments, the outdoor unit of the air conditioner includes: a housing having an internally formed receiving chamber, the housing including a front panel at the front and a side panel at the side; a partition disposed within the housing, dividing the receiving chamber into a fan compartment and a compressor compartment, wherein a heat exchanger and a fan are disposed in the fan compartment and a compressor is disposed in the compressor compartment; an electrical control box disposed on the top or side of the partition, wherein a chip element is disposed in the electrical control box; and a first heat dissipation duct disposed within the fan compartment or the compressor compartment, wherein the first heat dissipation duct includes a first heat dissipation air inlet opened on the front panel or the side panel to introduce ambient temperature air from the first heat dissipation air inlet to dissipate heat from the chip element.

[0009] In some alternative embodiments, the first heat dissipation duct includes an air intake duct section, wherein the air intake duct section includes a first air intake port, and the first air intake port is connected to the first heat dissipation air inlet of the front panel so that the ambient temperature air introduced from the first heat dissipation air inlet enters the air intake duct section.

[0010] In some optional embodiments, the first heat dissipation duct further includes a heat dissipation duct section connected to the exhaust duct section, wherein the heat dissipation duct section is disposed on the periphery of the radiator so that the ambient temperature air flowing in from the exhaust duct section flows through the radiator.

[0011] In some optional embodiments, the heat dissipation duct section includes a duct side plate, wherein the duct side plate has a first air outlet of the first heat dissipation duct, the first air outlet being located in the fan nacelle, so as to discharge the hot air in the first heat dissipation duct into the fan nacelle from the first air outlet.

[0012] In some alternative embodiments, the first air outlet includes an air outlet leading edge near the front plate of the housing and an air outlet trailing edge away from the front plate. The housing is also provided with an air guide ring covering the fan, and the extension line of the air outlet leading edge of the first air outlet is located between the air guide ring and the heat exchanger.

[0013] In some optional embodiments, the heat dissipation duct section further includes a duct baffle disposed at the rear edge of the first air outlet, wherein a reserved gap is provided between the duct baffle and the heat exchanger.

[0014] In some optional embodiments, the outdoor unit of the air conditioner further includes: a second heat dissipation duct disposed in the compressor compartment, the second heat dissipation duct including a second air inlet opened on the side plate to introduce ambient temperature air from the second air inlet to dissipate heat from the electronic control components, the side plate of the housing including a first side plate portion provided with a handle and a second side plate portion located below the first side plate portion, wherein the second air inlet of the second heat dissipation duct is opened on the first side plate portion; and / or, the second air inlet of the second heat dissipation duct is opened on the second side plate portion.

[0015] In some alternative embodiments, the electrical control box includes a second electrical control housing located in the compressor compartment, wherein the rear shell of the second electrical control housing has a second air outlet for a second heat dissipation duct.

[0016] In some alternative embodiments, the electrical control box includes a first electrical control chamber located in the wind turbine nacelle and a second electrical control chamber located in the compressor nacelle, as well as an electrical control partition disposed between the first electrical control chamber and the second electrical control chamber, wherein the electrical control partition has a second air outlet of a second heat dissipation duct to discharge hot air in the second heat dissipation duct into the wind turbine nacelle through the first heat dissipation duct.

[0017] In some embodiments, the air conditioner includes an outdoor unit as described above.

[0018] The outdoor unit and air conditioner provided in this disclosure can achieve the following technical effects: An outdoor unit for an air conditioner includes a casing, partition, electrical control box, and first heat dissipation duct.

[0019] The housing forms an internal accommodating chamber. The housing includes a front plate at the front and a side plate at the side. A partition is disposed inside the housing, dividing the accommodating chamber into a fan compartment and a compressor compartment. The heat exchanger and fan are disposed in the fan compartment, and the compressor is disposed in the compressor compartment. An electrical control box is disposed on the top or side of the partition, and the chip element is disposed in the electrical control box.

[0020] The first heat dissipation duct is located in the fan compartment or compressor compartment. The first heat dissipation duct includes a first heat dissipation air inlet opened on the front panel or side panel to introduce room temperature air from the first heat dissipation air inlet to dissipate heat from the chip components.

[0021] The front panel of the casing has an air outlet for the fan, and the front or side panel has a first heat dissipation air inlet that introduces ambient temperature air into the first heat dissipation duct. When the fan of the outdoor unit of the air conditioner rotates, an air pressure difference is created between the inside and outside of the fan compartment. Ambient temperature air from outside enters the first heat dissipation duct through the first heat dissipation air inlet. In this way, the rectifier bridge, IGBT, diodes, IPM and other chip components located in the first electronic control chamber can be cooled by the ambient temperature air. Alternatively, the heat sink for cooling the chip components can be cooled by the ambient temperature air in the first heat dissipation duct, improving the heat dissipation effect on the chip components, thereby improving the high-temperature cooling capacity and operational safety of the air conditioner.

[0022] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0023] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are considered similar elements. The drawings do not constitute a limitation of scale, and wherein: Figure 1 This is a schematic diagram of the structure of an outdoor unit of an air conditioner provided in an embodiment of this disclosure; Figure 2 This is a schematic diagram of another air conditioner outdoor unit provided in an embodiment of this disclosure; Figure 3 This is a schematic diagram of another air conditioner outdoor unit provided in an embodiment of this disclosure; Figure 4 This is a schematic diagram of the structure of an electrical control box provided in an embodiment of this disclosure; Figure 5 This is a schematic diagram of another electrical control box provided in an embodiment of this disclosure; Figure 6 This is a schematic diagram of another electrical control box provided in an embodiment of this disclosure; Figure 7 This is a schematic diagram of another electrical control box provided in an embodiment of this disclosure; Figure 8 This is a schematic diagram of another air conditioner outdoor unit provided in an embodiment of this disclosure.

[0024] Figure label: 1. Housing; 11. Front panel; 12. Side panel; 111. First heat dissipation air inlet; 2. Partition; 21. Fan nacelle; 22. Compressor nacelle; 3. Electrical control box; 31. First electrical control chamber; 32. Second electrical control chamber; 33. Electrical control partition; 4. Computer board; 5. Radiator; 51. First fin; 52. Second fin; 6. First heat dissipation air duct; 61. Air intake duct section; 611. First air intake port; 62. Heat dissipation air duct section; 621. First air outlet; 6211. Leading edge of air outlet; 6212. Rear edge of air outlet; 6213. Upper edge of first air outlet; 622. Air duct baffle; 71. Heat exchanger; 72. Fan; 73. Air guide ring; 8. Second heat dissipation air duct; 81. Second air inlet; 82. Second air outlet; 821. Upper edge of the second air outlet; 822. Lower edge of the second air outlet. Detailed Implementation

[0025] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0026] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0027] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.

[0028] Furthermore, the terms "setup," "connection," and "installation" should be interpreted broadly. For example, "connection" can refer to an installation connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can refer to the internal communication between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0029] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.

[0031] This disclosure provides an outdoor unit for an air conditioner.

[0032] Optionally, the outdoor unit of the air conditioner includes a housing 1, a partition 2, and an electrical control box 3.

[0033] The housing 1 forms an internal accommodating chamber. The housing 1 includes a front plate 11 located at the front and a side plate 12 located at the side. A partition 2 is disposed inside the housing 1, dividing the accommodating chamber into a fan compartment 21 and a compressor compartment 22. A heat exchanger 71 and a fan 72 are disposed in the fan compartment 21, and a compressor is disposed in the compressor compartment 22. An electrical control box 3 is disposed on the top or side of the partition 2, and the chip element is disposed in the electrical control box 3.

[0034] Optionally, the outdoor unit of the air conditioner also includes a first heat dissipation duct 6.

[0035] The first heat dissipation air duct 6 is disposed in the fan compartment 21 or the compressor compartment 22. The first heat dissipation air duct 6 includes a first heat dissipation air inlet 111 opened on the front panel 11 or the side panel 12, so as to introduce room temperature air from the first heat dissipation air inlet 111 to dissipate heat from the chip components.

[0036] Optionally, the outdoor unit of the air conditioner is provided with a first heat dissipation duct 6, and the front panel 11 of the casing 1 has a first heat dissipation air inlet 111 for the first heat dissipation duct 6. When the fan 72 of the outdoor unit of the air conditioner rotates, an air pressure difference is formed between the inside and outside of the fan compartment 21. The ambient temperature air from the outside, which has not been heated by heat sources such as the heat exchanger 71 in the fan compartment 21, enters the first heat dissipation duct 6 through the first heat dissipation air inlet 111. The air temperature is low and the heat dissipation temperature difference is large. In this way, the chip components in the first electrical control chamber 31 of the electrical control box 3 can be cooled by the ambient temperature air. Alternatively, the radiator 5 that cools the chip components can be cooled by the ambient temperature air in the first heat dissipation duct 6, which improves the heat dissipation effect on the chip components and thus improves the high-temperature cooling capacity and operational safety of the air conditioner.

[0037] Optionally, the location of the first heat dissipation duct 6 in the outdoor unit of the air conditioner can be determined based on the location of the chip components in the outdoor unit of the air conditioner.

[0038] Optionally, the electrical control box 3 includes a first electrical control chamber 31 located in the fan nacelle 21 and a second electrical control chamber 32 located in the compressor nacelle 22, and the chip element is disposed in the first electrical control chamber 31; the heat sink 5 is thermally connected to the chip element for heat dissipation of the chip element.

[0039] For example, when the chip components are housed in the fan compartment, the first heat dissipation duct 6 can be opened in the fan compartment 21. In this case, the first heat dissipation air inlet 111 of the first heat dissipation duct 6 can be opened on the front panel 11 of the housing 1. This shortens the length of the first heat dissipation duct 6, reducing the airflow loss of room temperature air within the first heat dissipation duct 6. Furthermore, the front panel 11 has an air outlet for the fan 72, with the first heat dissipation air inlet 111 located close to the air outlet of the fan 72. Thus, the first heat dissipation air inlet 111 is located in the pressure difference area formed by the rotation of the fan 72, increasing the airflow of room temperature air into the first heat dissipation air inlet 111, thereby improving the heat dissipation effect on the heat sink 5 and the chip components.

[0040] Optionally, when the electrical control box 3 is installed in the press chamber 22, for example, when the electrical control box 3 is installed vertically in the press chamber 22, the first heat dissipation air duct 6 can be opened in the press chamber 22, and the first heat dissipation air inlet 111 of the first heat dissipation air duct 6 can be opened in the side plate 12 of the housing 1, so as to introduce room temperature air from the side plate 12 to dissipate heat from the chip components.

[0041] Optionally, the first heat dissipation duct 6 is arranged in a straight line along the horizontal direction, which shortens the length of the first heat dissipation duct 6 and reduces the air volume loss of room temperature air in the first heat dissipation duct 6.

[0042] Optionally, the chip components include rectifier bridges, IGBTs, diodes, IPMs, etc.

[0043] Optionally, the radiator 5 is an aluminum finned radiator 5.

[0044] Optionally, the first heat dissipation air inlet 111 is provided with downward-sloping louvers, which prevents rainwater, dust and other debris from entering the first heat dissipation air duct 6 and improves the safety of the computer board 4.

[0045] The outdoor unit of the air conditioner provided in this embodiment uses a first heat dissipation duct 6 to individually dissipate heat from the chip components, which are the core heat-generating components. This avoids interference from other heat sources such as the compressor, resulting in highly targeted and efficient heat dissipation.

[0046] Optionally, the first heat dissipation duct 6 includes an air intake duct section 61, wherein the air intake duct section 61 includes a first air intake port 611, and the first air intake port 611 is connected to the first heat dissipation air inlet 111 of the front panel 11 so that the normal temperature air introduced from the first heat dissipation air inlet 111 enters the air intake duct section 61.

[0047] The first air intake 611 of the air duct section 61 is connected to the first heat dissipation air inlet 111, so that the ambient temperature air outside the casing 1 of the outdoor unit of the air conditioner enters the air duct section 61 from the first heat dissipation air inlet 111 through the first air intake 611. The electrical control box 3 includes a first electrical control housing located in the fan compartment 21, which encloses a first electrical control chamber 31. Optionally, the air duct section 61 is located at the lower part of the first electrical control housing, so that the air duct section 61 is connected to the first electrical control chamber 31 to guide the ambient temperature air of the air duct section 61 to the radiator 5. Optionally, the air duct section 61 is integrally formed with the first electrical control housing. Optionally, the air duct section 61 is connected to the first electrical control housing through a sheet metal part.

[0048] Optionally, the first heat dissipation duct 6 further includes a heat dissipation duct section 62 connected to the exhaust duct section 61, wherein the heat dissipation duct section 62 is disposed on the periphery of the radiator 5 so that the ambient temperature air flowing in from the exhaust duct section 61 flows through the radiator 5.

[0049] The heat dissipation air duct section 62 is located on the periphery of the radiator 5. In this way, the normal temperature air from the exhaust air duct section 61 can be accurately guided to the heat dissipation air duct section 62, reducing the disorderly diffusion of normal temperature air in the fan compartment 21 and improving the exhaust efficiency of the exhaust air duct section 61 and the heat dissipation efficiency of the heat dissipation air duct section 62.

[0050] Optionally, the heat dissipation duct section 62 is disposed at the lower part of the first electronic control housing. Optionally, the heat dissipation duct section 62 is integrally formed with the first electronic control housing. Optionally, the heat dissipation duct section 62 is connected to the first electronic control housing via sheet metal parts.

[0051] Optionally, the air intake duct section 61 and the heat dissipation duct section 62 are integrally formed.

[0052] Optionally, the heat dissipation air duct section 62 forms a semi-enclosed state for the heat sink 5.

[0053] Optionally, the air intake section 61 and the heat dissipation section 62 of the first heat dissipation duct 6 extend in the front-to-back direction, and the ambient temperature air forms a front-to-back airflow path in the first heat dissipation duct 6. The heat dissipation fins of the radiator 5 also extend in the front-to-back direction, which improves the heat exchange effect between the ambient temperature air and the heat dissipation fins in the first heat dissipation duct 6.

[0054] Optionally, the heat dissipation duct section 62 includes a duct side plate, wherein the duct side plate has a first air outlet 621 of the first heat dissipation duct 6, and the first air outlet 621 is located in the fan compartment 21 to discharge hot air in the first heat dissipation duct 6 into the fan compartment 21 from the first air outlet 621.

[0055] The side plate of the heat dissipation air duct section 62 has a first air outlet 621. The normal temperature air in the first heat dissipation air duct 6 exchanges heat with the radiator 5 and its temperature rises, becoming hot air. The hot air after heat exchange is discharged into the fan nacelle 21 through the first air outlet 621 located in the fan nacelle 21, and then discharged from the casing 1 of the outdoor unit of the air conditioner by the fan 72.

[0056] Optionally, the duct side panel is inclined, which provides clearance for the rotation of the fan 72. Furthermore, the inclined duct side panel more precisely guides the hot air discharged from the first air outlet 621 to the main negative pressure zone between the fan 72's guide ring 73 and the heat exchanger 71. Simultaneously, it avoids noise and pressure loss caused by sudden changes or impacts in airflow direction, thus reducing the overall operating noise of the outdoor unit of the air conditioner and improving the efficiency of the fan 72.

[0057] Optionally, the air duct section 61 is a narrow air duct along the airflow direction, which speeds up the airflow velocity in the air duct section 61 and improves the heat exchange effect between the ambient temperature air and the radiator 5.

[0058] Optionally, the first air inlet 611 of the air duct section 61 is provided with a flange, which improves the sealing performance of the connection between the first air inlet 611 and the first heat dissipation air inlet 111.

[0059] Optionally, the side panel of the heat dissipation duct section 62 can extend to the air intake duct section 61, utilizing... Figure 5 In this context, a1 represents the angle between the duct side plate and the horizontal line. Optionally, the radiator 5 includes an unequal-length fin assembly near the fan 72. This assembly includes a first fin 51 near the fan 72 and a second fin 52 away from the fan 72. The end of the first fin 51 to the end of the second fin 52 forms a fin end line, and the angle between this line and the horizontal line is a2. Figure 7 As shown. Where a1 = a2.

[0060] Optionally, the first air outlet 621 includes a leading edge 6211 near the front plate 11 of the housing 1 and a trailing edge 6212 away from the front plate 11. A guide ring 73 is also provided inside the housing 1, covering the fan 72. Furthermore, the extension line of the leading edge 6211 of the first air outlet 621 is located between the guide ring 73 and the heat exchanger 71. Figure 4 and Figure 8 As shown.

[0061] The fan 72 of the outdoor unit of the air conditioner is surrounded by an air guide ring 73. Inside the casing 1 of the outdoor unit, due to the blocking effect of the air guide ring 73, the distance h0 between the air guide ring 73 and the front panel 11 is a windless zone. Figure 8 As shown. If the first air outlet 621 is located between the air guide ring 73 and the front panel 11, the first heat dissipation air duct 6 will form a part of the windless area, reducing the heat dissipation effect of the first heat dissipation air duct 6.

[0062] Figure 8 In this embodiment, the distance between the air guide ring 73 and the heat exchanger 71 is H. Since the air speed generated by the rotation of the fan 72 is relatively fast, the extension line of the air outlet leading edge 6211 of the first air outlet 621 is located between the air guide ring 73 and the heat exchanger 71. This facilitates the rapid discharge of hot air from the first air outlet 621 to the outside of the housing 1 of the outdoor unit of the air conditioner with the fan 72, thereby increasing the flow rate of the heat dissipation air in the first heat dissipation duct 6 and improving the heat dissipation efficiency of the chip components.

[0063] As a comparative example, the first air outlet is located between the air guide ring 73 and the front panel 11. Testing showed that in this embodiment, the extension line of the leading edge 6211 of the first air outlet 621 is located between the air guide ring 73 and the heat exchanger 71, and the air velocity within the first heat dissipation duct 6 is 1 to 4 times higher than in the comparative example.

[0064] Optionally, the distance between the guide ring 73 and the extended line of the leading edge 6211 of the first air outlet 621 is h1, and the distance between the heat exchanger 71 and the extended line of the leading edge 6211 of the first air outlet 621 is h3. The area formed by h3, relative to the area formed by h1, is the area with the greatest negative pressure and the largest airflow. In this embodiment, the area from the guide ring 73 to the leading edge 6211 of the first air outlet 621 is located in the area with the largest airflow inside the outdoor unit of the air conditioner, increasing the flow rate of the cooling air in the first heat dissipation duct 6. Optionally, the difference between h1 and h3 is less than or equal to a preset difference hx, where the preset difference hx is 1 / 4H. This makes the leading edge 6211 of the first air outlet 621 closer to the tail of the fan blades of the fan 72.

[0065] Optionally, the distance between the tail of the fan blade and the extension line of the leading edge 6211 of the first air outlet 621 is h2, where h2 is less than or equal to a preset difference hx.

[0066] Optionally, the heat dissipation air duct section 62 further includes an air duct baffle 622 disposed at the rear edge 6212 of the first air outlet 621, wherein a reserved gap is provided between the air duct baffle 622 and the heat exchanger 71.

[0067] The duct baffle 622, located at the rear edge 6212 of the first air outlet 621, prevents high-temperature air from entering the first heat dissipation duct 6 through the heat exchanger 71, thus enhancing the heat exchange capacity between the ambient temperature air and the radiator 5 within the first heat dissipation duct 6. A pre-reserved gap is provided between the duct baffle 622 and the heat exchanger 71, ensuring a certain distance between them and preventing the heat from the heat exchanger 71 from affecting the temperature within the first heat dissipation duct 6.

[0068] Optionally, the outdoor unit of the air conditioner also includes a second heat dissipation duct 8.

[0069] The second heat dissipation duct 8 is disposed inside the compressor compartment 22. The second heat dissipation duct 8 includes a second air inlet 81 opened in the housing 1. The second air inlet 81 connects the outside of the housing 1 with the receiving chamber inside the housing 1, so as to introduce ambient temperature air from the outside through the second air inlet 81 to dissipate heat from the electronic control components inside the compressor compartment 22.

[0070] In this way, ambient temperature air can be introduced from the second air inlet 81 to dissipate heat from the compressor, PCB board, reactors, inductors, IPMs, common-mode inductors, capacitors, and other electronic control components inside the compressor compartment 22. Figure 3 As shown.

[0071] Optionally, the side plate 12 of the housing 1 includes a first side plate portion with a handle and a second side plate portion located below the first side plate portion, wherein the second air inlet 81 of the second heat dissipation duct 8 is opened in the first side plate portion; and / or, the second air inlet 81 of the second heat dissipation duct 8 is opened in the second side plate portion.

[0072] When the fan 72 of the outdoor unit of the air conditioner rotates, a pressure difference is generated between the fan compartment 21, the compressor compartment 22 and the outside air. The outside normal temperature air enters the compressor compartment 22 through the second air inlet 81, then enters the fan compartment 21 through the second air outlet 82 of the second electrical control housing of the electrical control box 3, and finally is discharged from the outdoor unit of the air conditioner through the fan 72.

[0073] The side plate 12 of the housing 1 can be provided with a second air inlet 81 located at the top and another second air inlet 81 located at the bottom. In this way, when one of the second air inlets 81 is clogged or has other problems that affect the air volume of normal temperature air, normal temperature air can be introduced from the other second air inlet 81, thus ensuring the heat dissipation effect of the second heat dissipation duct 8.

[0074] Optionally, the housing 1 also includes a back panel opposite to the front panel 11, wherein the back panel may also have a second air inlet 81. For example, under certain installation conditions of the outdoor unit of the air conditioner, the back panel is not mounted against the wall. In this case, a second air inlet 81 connected to the second heat dissipation duct 8 can be opened on the back panel.

[0075] Optionally, the second air outlet 82 of the second heat dissipation duct 8 is connected to the fan nacelle 21 so that the hot air in the second heat dissipation duct 8 is discharged into the fan nacelle 21 through the second air outlet 82.

[0076] The second air outlet 82 of the second heat dissipation duct 8 is connected to the fan compartment 21. In this way, when the fan 72 rotates, the hot air in the second heat dissipation duct 8 can enter the fan compartment 21 and be discharged from the casing 1.

[0077] Optionally, the electrical control box 3 includes a second electrical control housing located in the compressor compartment 22, wherein the second air outlet 82 of the second heat dissipation duct 8 is located on the rear shell of the second electrical control housing. Optionally, a heat insulation baffle is provided between the second air outlet 82 and the heat exchanger 71, so that the second air outlet 82 located on the rear shell of the second electrical control housing and the heat insulation baffle form an upward, downward, and leftward airflow duct. Furthermore, the heat insulation baffle can prevent high-temperature air from entering the second heat dissipation duct 8 through the heat exchanger 71, thereby improving the heat dissipation capacity of the second heat dissipation duct 8 and also providing waterproof and dustproof functions.

[0078] Optionally, the electrical control box 3 includes a first electrical control chamber 31 located in the fan nacelle 21 and a second electrical control chamber 32 located in the compressor nacelle 22, and an electrical control partition 33 disposed between the first electrical control chamber 31 and the second electrical control chamber 32, wherein the first electrical control chamber 31 is connected to the fan nacelle 21, and the second air outlet 82 is opened in the electrical control partition 33 so that the second air outlet 82 is connected to the fan nacelle 21.

[0079] The second air outlet 82 is located on the electrical control partition 33 of the electrical control box 3. In this way, the hot air in the second heat dissipation duct 8 can enter the first electrical control chamber 31 through the second air outlet 82 of the electrical control partition 33, and then be discharged into the fan compartment 21. Optionally, multiple second air outlets 82 can be provided.

[0080] The second air outlet 82 of the electronic control partition 33, together with the fins of the radiator and the first air outlet 621, forms a downward air outlet duct.

[0081] Optionally, the electronic control partition 33 is divided along the front-to-back direction. The electronic control partition 33 includes a front electronic control board section near the front panel 11 and a rear electronic control board section near the back panel. The second air outlet 82 is located in the rear electronic control board section. This facilitates the flow of air from the second heat dissipation duct 8 through the first air outlet 621 along a predetermined path. Furthermore, it creates a certain distance between the second air outlet 82 and the first air intake 611 of the first heat dissipation duct 6, preventing the ambient temperature air from the first heat dissipation duct 6 from failing to dissipate heat from the chip components and instead entering the second heat dissipation duct 8 through the second air outlet 82.

[0082] Optionally, the radiator 5 is configured to correspond to the second air outlet 82.

[0083] Optionally, the second air outlet 82 of the second heat dissipation duct 8 is connected to the first air outlet 621 of the first heat dissipation duct 6, so that the hot air from the second air outlet 82 is discharged into the fan compartment 21 through the first air outlet 621.

[0084] The upper edge of the second air outlet 82 is the second air outlet upper edge 821, the lower edge of the second air outlet 82 is the second air outlet lower edge 822, the upper edge of the first air outlet 621 is the first air outlet upper edge 6213, and the lower edge of the second air outlet 82 is the first air outlet lower edge. The setting height of the second air outlet upper edge 821 is higher than the setting height of the first air outlet upper edge; and / or, the setting height of the second air outlet lower edge 822 is higher than the setting height of the first air outlet lower edge.

[0085] The second air outlet 82 of the second heat dissipation duct 8 is staggered with the first air outlet 621 of the first heat dissipation duct 6, that is, the second air outlet 82 is located above the first air outlet 621. This avoids the hot air in the first heat dissipation duct 6 flowing back into the second heat dissipation duct 8 and helps to discharge hot air of different temperatures in the first heat dissipation duct 6 and the second heat dissipation duct 8 along a set path.

[0086] Furthermore, the first air outlet 621 and the second air outlet 82 are arranged at different heights to ensure the relative independence of the airflow in the two independent heat dissipation channels.

[0087] In this embodiment, no additional guide plate or complex air duct isolation structure is required. The problem of mutual interference between the airflow of the first heat dissipation air duct 6 and the second heat dissipation air duct 8 is solved simply by optimizing the relative positions of the two air outlets.

[0088] Optionally, the distance between the second air outlet 82 and the radiator 5 is greater than or equal to the first preset distance.

[0089] Optionally, the first preset spacing is 10mm. Setting the first preset spacing facilitates the flow of hot air from the second heat dissipation duct 8 into the fan compartment 21 via the first heat dissipation duct 6, thus preventing the radiator 5 from blocking the second air outlet 82.

[0090] In this embodiment, a second heat dissipation duct 8 is used to dissipate heat from the electronic control components inside the compressor compartment 22. Thus, the independent airflow from the first heat dissipation duct 6 and the second heat dissipation duct 8 solves the problems of insufficient airflow and low air volume in certain areas of the power chip heat sink 5, as well as the high temperature problem caused by the airtight and lack of airflow in the compressor compartment 22, thereby resolving the heat dissipation issues of the electronic control components and the compressor compartment 22.

[0091] This disclosure also provides an air conditioner.

[0092] Optionally, the air conditioner includes an outdoor unit as described above.

[0093] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An outdoor unit for an air conditioner, characterized in that, include: The housing (1) has an internal cavity, and the housing (1) includes a front plate (11) located at the front and a side plate (12) located at the side. A partition (2) is provided inside the shell (1) to divide the receiving chamber into a fan compartment (21) and a compressor compartment (22). The heat exchanger (71) and the fan (72) are provided in the fan compartment (21), and the compressor is provided in the compressor compartment (22). An electrical control box (3) is disposed on the top or side of the partition (2), and chip components are disposed in the electrical control box (3); and, The first heat dissipation air duct (6) is installed in the fan compartment (21) or compressor compartment (22). The first heat dissipation duct (6) includes a first heat dissipation air inlet (111) opened on the front panel (11) or the side panel (12) to introduce room temperature air from the first heat dissipation air inlet (111) to dissipate heat from the chip components.

2. The outdoor unit of the air conditioner according to claim 1, characterized in that, The first heat dissipation air duct (6) includes an air intake duct section (61), The air duct section (61) includes a first air inlet (611), and the first air inlet (611) is connected to the first heat dissipation air inlet (111) of the front panel (11) so that the normal temperature air introduced from the first heat dissipation air inlet (111) enters the air duct section (61).

3. The outdoor unit of the air conditioner according to claim 2, characterized in that, The first heat dissipation air duct (6) also includes a heat dissipation air duct section (62) that is connected to the air intake air duct section (61). Among them, the heat dissipation air duct section (62) is set on the periphery of the radiator (5) so that the normal temperature air flowing in from the air duct section (61) flows through the radiator (5).

4. The outdoor unit of the air conditioner according to claim 3, characterized in that, The heat dissipation air duct section (62) includes the air duct side plate. The side plate of the air duct is provided with a first air outlet (621) of the first heat dissipation air duct (6). The first air outlet (621) is located in the fan compartment (21) so that the hot air in the first heat dissipation air duct (6) is discharged into the fan compartment (21) from the first air outlet (621).

5. The outdoor unit of the air conditioner according to claim 4, characterized in that, The first air outlet (621) includes an air outlet leading edge (6211) near the front plate (11) of the housing (1) and an air outlet trailing edge (6212) away from the front plate (11). The housing (1) is also provided with a guide ring (73) covering the fan (72), and the extension line of the leading edge (6211) of the first air outlet (621) is located between the guide ring (73) and the heat exchanger (71).

6. The outdoor unit of the air conditioner according to claim 5, characterized in that, The heat dissipation air duct section (62) also includes an air duct baffle (622) disposed at the rear edge (6212) of the first air outlet (621). A reserved gap is provided between the air duct baffle (622) and the heat exchanger (71).

7. The outdoor unit of the air conditioner according to any one of claims 1 to 6, characterized in that, Also includes: A second heat dissipation duct (8) is provided inside the compressor chamber (22). The second heat dissipation duct (8) includes a second air inlet (81) opened on the side plate (12) to introduce room temperature air from the second air inlet (81) to dissipate heat from the electronic control components. The side plate (12) of the housing (1) includes a first side plate portion with a handle and a second side plate portion located below the first side plate portion. The second air inlet (81) of the second heat dissipation duct (8) is located on the first side panel; and / or, The second air inlet (81) of the second heat dissipation duct (8) is located on the second side panel.

8. The outdoor unit of the air conditioner according to claim 7, characterized in that, The electrical control box (3) includes a second electrical control housing located in the compressor compartment (22), wherein, The rear shell of the second electronic control housing has a second air outlet (82) of the second heat dissipation duct (8).

9. The outdoor unit of the air conditioner according to claim 7, characterized in that, The electrical control box (3) includes a first electrical control chamber (31) located in the wind turbine nacelle (21) and a second electrical control chamber (32) located in the compressor nacelle (22), and an electrical control partition (33) disposed between the first electrical control chamber (31) and the second electrical control chamber (32), wherein, The electronic control partition (33) has a second air outlet (82) of the second heat dissipation duct (8) so that the hot air in the second heat dissipation duct (8) is discharged into the fan compartment (21) through the first heat dissipation duct (6).

10. An air conditioner, characterized in that, Includes the outdoor unit of an air conditioner as described in any one of claims 1 to 9.

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