Outdoor unit and air conditioner

Abstract

The invention discloses an outdoor unit and an air conditioner, and belongs to the technical field of electrical equipment. The outdoor unit comprises a shell, a compressor, an outdoor heat exchanger, a fan and an electric control assembly. The shell is provided with a first chamber and a second chamber which are independent, the compressor is arranged in the first chamber, and the fan and the outdoor heat exchanger are arranged in the second chamber; the electric control assembly comprises a circuit board and a heat dissipation piece, the heat dissipation piece is in heat conduction connection with the circuit board and is provided with a first heat dissipation channel and a second heat dissipation channel, the first heat dissipation channel communicates with the first cavity and the second cavity, and the second heat dissipation channel communicates with the second cavity and is disconnected from the first cavity.

Description

Technical Field

[0001] The present application belongs to the technical field of electrical equipment, and in particular, relates to an outdoor unit and an air conditioner. Background Art

[0002] In air conditioner products, some electronic components used in the electronic control components will generate a lot of heat during operation, causing local temperature rise and damage to the circuit board. Therefore, the electronic control components need to be cooled.

[0003] In the related art, the circuit board is generally cooled by air cooling. In the cooling mode, the temperature of the air heated by the outdoor heat exchanger is relatively high, basically higher than the outdoor ambient temperature. If the air after heat exchange is directly used to dissipate the heat of the electronic control components, the heat dissipation effect is not good because the air temperature after heat exchange is relatively high, about 50 degrees Celsius. If the air in the outdoor environment is directly used to dissipate the heat of the electronic control components, the heat dissipation effect is not good due to the slow flow rate. If the fan of the outdoor unit is used to increase the air in the outdoor environment to dissipate the heat of the electronic control components, it is easy for the normal temperature air in the outdoor environment to be heated by the high temperature air after heat exchange before dissipating the heat of the electronic control components, resulting in an increase in the temperature of the normal temperature air, thereby affecting the heat dissipation efficiency of the electronic control components. Summary of the invention

[0004] The present application aims to solve the technical problem of low heat dissipation efficiency of heat dissipation components of an electrical box to a certain extent at least. To this end, the present application provides an outdoor unit and an air conditioner.

[0005] In a first aspect, an outdoor unit provided in an embodiment of the present application includes:

[0006] A housing having an independent first chamber and a second chamber;

[0007] A compressor, an outdoor heat exchanger and a fan, wherein the compressor is arranged in the first chamber, and the fan and the outdoor heat exchanger are arranged in the second chamber;

[0008] The electronic control component includes a circuit board and a heat sink, wherein the heat sink is thermally connected to the circuit board, and the heat sink has a first heat dissipation channel and a second heat dissipation channel, wherein the first heat dissipation channel connects the first chamber and the second chamber, and the second heat dissipation channel connects the second chamber and is disconnected from the first chamber.

[0009] In the outdoor unit proposed in the embodiment of the present application, since the heat sink has a first heat dissipation channel and a second heat dissipation channel, the first heat dissipation channel connects the first chamber and the second chamber, and the second heat dissipation channel connects the second chamber and is disconnected from the first chamber. Therefore, when the air conditioner operates in the cooling mode, the normal temperature air and the high temperature air for dissipating heat of the electric control component can be separated, and the situation in which the normal temperature air is heated by the high temperature air before dissipating heat to the electric control component is improved as much as possible, so that the normal temperature air can more fully cool down the electric control component, thereby improving the heat dissipation efficiency and heat dissipation effect of the electric control component.

[0010] In some embodiments, of the first heat dissipation channel and the second heat dissipation channel, the first heat dissipation channel is disposed closer to the circuit board.

[0011] In some embodiments, of the first heat dissipation channel and the second heat dissipation channel, the second heat dissipation channel is disposed closer to the fan.

[0012] In some embodiments, the heat sink is at least partially disposed within the second chamber.

[0013] In some embodiments, the second heat dissipation channel is connected to the second chamber in at least two different directions.

[0014] In some embodiments, the heat sink includes a substrate, a partition plate, a plurality of first fins and a plurality of second fins, the substrate is connected to the circuit board, the plurality of first fins connect the substrate and the partition plate, the gap between two adjacent first fins forms the first heat dissipation channel, the plurality of second fins are connected to a side of the partition plate away from the first fins, and the gap between two adjacent second fins forms the second heat dissipation channel.

[0015] In some embodiments, the second fin is disposed within the second chamber.

[0016] In some embodiments, one end of the second heat dissipation channel away from the partition plate is connected to the second chamber, and in the airflow direction of the first heat dissipation channel, one side of the second heat dissipation channel is connected to the second chamber and the other side is disconnected from the first chamber.

[0017] In some embodiments, the base plate, the partition plate, the first fins, and the second fins are integrally formed.

[0018] In some embodiments, at least one of the partition plate, the first fin, and the second fin is wavy.

[0019] In some embodiments, the outdoor unit further includes a flow guide, which is disposed at a connection between the first heat dissipation channel and the first chamber to guide the gas in the first chamber into the first heat dissipation channel.

[0020] In some embodiments, the first chamber has an air inlet, and the air inlet can allow outdoor air to enter the first chamber and flow into the first heat dissipation channel;

[0021] Wherein, the guide member is arranged to be inclined toward the air inlet.

[0022] In some embodiments, the outdoor unit further includes a baffle, which is disposed at a connection between the second heat dissipation channel and the first chamber to disconnect the second heat dissipation channel from the first chamber.

[0023] In some embodiments, the outdoor unit further includes an integrally formed flow guide and baffle;

[0024] The guide member is disposed at the connection between the first heat dissipation channel and the first chamber to guide the gas in the first chamber into the first heat dissipation channel;

[0025] The baffle is disposed at a connection between the second heat dissipation channel and the first chamber to disconnect the second heat dissipation channel from the first chamber.

[0026] In a second aspect, an embodiment of the present application provides an air conditioner, comprising the outdoor unit described above.

[0027] The air conditioner proposed in the second aspect has the same beneficial effects as the outdoor unit proposed in the first aspect, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 The internal structure diagram of the outdoor unit is shown;

[0030] Figure 2 Shows Figure 1 A partial enlarged view of the center

[0031] Figure 3 Shows Figure 1 Schematic diagram of the local structure;

[0032] Figure 4Shows Figure 3 A partial enlarged view of point B in the middle;

[0033] Figure 5 Shows Figure 1 A partial cross-sectional view of

[0034] Figure 6 Shows Figure 1 Schematic diagram of the two-point structure of the heat sink.

[0035] Reference numerals:

[0036] 100-outdoor unit, 110-housing, 111-first chamber, 112-second chamber, 113-air inlet, 120-compressor, 130-outdoor heat exchanger, 140-fan, 150-electronic control component, 151-circuit board, 152-heat sink, 152a-first heat dissipation channel, 152b-second heat dissipation channel, 152c-base board, 152d-partition plate, 152e-first fin, 152f-second fin, 160-guide member, 161-guide plate, 170-baffle. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0038] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0039] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] In addition, in this application, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0041] The air conditioner includes an outdoor heat exchanger, an expansion valve, an indoor heat exchanger and a compressor. The outdoor heat exchanger and the compressor constitute the outdoor unit of the air conditioner. In the cooling mode, the high-temperature and high-pressure heat exchange medium output by the compressor flows to the outdoor heat exchanger, and forms a low-temperature and high-pressure heat exchange medium after passing through the outdoor heat exchanger and exchanging heat with the outdoor air. After passing through the electronic expansion valve, it forms a low-temperature and low-pressure heat exchange medium. The low-temperature and low-pressure heat exchange medium enters the indoor heat exchanger, exchanges heat with the indoor air, absorbs the heat of the indoor air, forms a high-temperature and low-pressure heat exchange medium, and flows back to the compressor, and so on. In the heating mode, the high-temperature and high-pressure heat exchange medium output by the compressor flows to the indoor heat exchanger, and after exchanging heat with the indoor air, it releases the heat to the indoor environment, forming a low-temperature and high-pressure heat exchange medium. The low-temperature and high-pressure heat exchange medium passes through the expansion valve to form a low-temperature and low-pressure heat exchange medium. The low-temperature and low-pressure heat exchange medium flows into the outdoor heat exchanger, and after heat exchange with the outdoor environment, it forms a high-temperature and low-pressure heat exchange medium and flows back to the compressor, and so on.

[0042] In the related art, in air conditioner products, some electronic components used in the electric control assembly will generate a lot of heat during operation, causing local temperature rise and damaging the circuit board. Therefore, the electric control assembly needs to be cooled. The heat dissipation of the electric control assembly of the outdoor unit is mostly done by air cooling.

[0043] In the heating mode, the low-temperature and low-pressure heat exchange medium will flow into the outdoor heat exchanger to form a high-temperature and low-pressure heat exchange medium after heat exchange with the outdoor environment. In this process, the heat exchange medium will absorb the heat of the surrounding air, so that the surrounding air is cooled. The temperature of the air cooled by the outdoor heat exchanger is relatively low, basically lower than the outdoor ambient temperature, and the temperature difference with the electronic control components is large. Therefore, directly using the air cooled by the outdoor heat exchanger to dissipate the heat of the electronic control components can achieve a better heat dissipation effect.

[0044] In cooling mode, the temperature of the air heated by the outdoor heat exchanger is relatively high, basically higher than the outdoor ambient temperature. If the air after heat exchange is used directly to dissipate the heat of the electronic control components, the heat dissipation effect is not good because the temperature of the air after heat exchange is relatively high, roughly around 50 degrees Celsius. If the air in the outdoor environment is used directly to dissipate the heat of the electronic control components due to the slow flow rate, the heat dissipation effect is not good. If the fan of the outdoor unit is used to increase the air in the outdoor environment to dissipate the heat of the electronic control components, it is easy for the normal temperature air in the outdoor environment to be heated by the high temperature air after heat exchange before it dissipates the heat of the electronic control components, resulting in an increase in the temperature of the normal temperature air, thereby affecting the heat dissipation efficiency of the electronic control components.

[0045] In order to solve the problems existing in the related technology to a certain extent, the embodiments of the present application provide an outdoor unit and an air conditioner, which can separate the normal temperature air and high temperature air for dissipating heat to the electronic control components in the cooling mode, and improve the situation where the normal temperature air is heated by the high temperature air before dissipating heat to the electronic control components as much as possible, so that the normal temperature air can cool down the electronic control components more fully, thereby improving the heat dissipation efficiency and heat dissipation effect of the electronic control components.

[0046] The present application is described below with reference to the accompanying drawings and specific embodiments:

[0047] Combination Figure 1 and Figure 5 The embodiment of the present application provides an outdoor unit 100. In the cooling mode, the outdoor unit 100 provided in the embodiment of the present application can separate the normal temperature air and the high temperature air for dissipating heat from the electric control component 150, and improve the situation where the normal temperature air is heated by the high temperature air before dissipating heat to the electric control component 150 as much as possible, so that the normal temperature air can more fully cool down the electric control component 150, thereby improving the heat dissipation efficiency and heat dissipation effect of the electric control component 150.

[0048] In the embodiment of the present application, for the convenience of description, the air entering the first chamber 111 is defined as normal temperature air. In the cooling mode, the air after heat exchange through the outdoor heat exchanger 130 is high temperature air. In the heating mode, the air after heat exchange through the outdoor heat exchanger 130 is low temperature air, wherein the temperature value of the low temperature air is lower than the temperature value of the normal temperature air, and the temperature value of the high temperature air is higher than the temperature value of the normal temperature air.

[0049] An outdoor unit 100 provided in an embodiment of the present application includes a housing 110, a compressor 120, an outdoor heat exchanger 130, a fan 140, and an electric control component 150. The housing 110 has an independent first chamber 111 and a second chamber 112, the compressor 120 is arranged in the first chamber 111, and the fan 140 and the outdoor heat exchanger 130 are arranged in the second chamber 112; the electric control component 150 includes a circuit board 151 and a heat sink 152, the heat sink 152 is thermally connected to the circuit board 151, and the heat sink 152 has a first heat dissipation channel 152a and a second heat dissipation channel 152b, the first heat dissipation channel 152a communicates with the first chamber 111 and the second chamber 112, and the second heat dissipation channel 152b communicates with the second chamber 112 and is disconnected from the first chamber 111.

[0050] The housing 110 is a basic component of the outdoor unit 100 of the present application. The housing 110 can provide a mounting base for at least some of the other components of the outdoor unit 100, and can also protect at least some of the other components of the outdoor unit 100. The housing 110 has an independent first chamber 111 and a second chamber 112. The first chamber 111 and the second chamber 112 can be arranged side by side or stacked, and there is no limitation on this.

[0051] When the air conditioner is in cooling mode, the heat exchange medium entering the outdoor heat exchanger 130 is a high-temperature, low-pressure heat exchange medium. The heat exchange medium releases heat under the action of the outdoor heat exchanger 130 to form a low-temperature, low-pressure heat exchange medium. Therefore, the fan 140 blows out high-temperature air. Similarly, when the air conditioner is in heating mode, the heat exchange medium entering the outdoor heat exchanger 130 is a low-temperature, low-pressure heat exchange medium. Under the action of the outdoor heat exchanger 130, the heat in the outdoor air is absorbed to form a high-temperature, low-pressure heat exchange ring. Therefore, the fan 140 blows out cold air, that is, low-temperature air. Whether it is high-temperature air or low-temperature air, it will have a certain impact on the compressor 120. In order to avoid the impact of the high-temperature air of the outdoor heat exchanger 130 on the compressor, the compressor 120, the outdoor heat exchanger 130 and the fan 140 are arranged in different chambers, that is, the compressor 120 is arranged in the first chamber 111, and the fan 140 and the outdoor heat exchanger 130 are arranged in the second chamber 112.

[0052] The electronic control component 150 includes a circuit board 151 and a heat sink 152. The circuit board 151 is used to control the daily operation of the outdoor unit 100. The heat sink 152 can be connected to the circuit board 151 through heat-conducting connectors such as thermal conductive glue. The heat of the circuit board 151 is transferred to the air through the heat sink 152, thereby cooling the circuit board 151. The high-temperature air and the normal-temperature air cool the heat sink 152 at the same time, accelerating the heat dissipation of the circuit board 151 and improving the heat dissipation efficiency of the heat sink 152.

[0053] Figure 1The left arrow indicates the flow direction of high-temperature air, and the right arrow indicates the flow direction of normal-temperature air. When the air conditioner operates in cooling mode, the fan 140 rotates to generate negative pressure in the second chamber 112 , and the normal-temperature air in the first chamber 111 will be sucked into the second chamber 112 . Since the heat sink 152 has a first heat dissipation channel 152a and a second heat dissipation channel 152b, the first heat dissipation channel 152a is connected to the first chamber 111 and the second chamber 112, and the second heat dissipation channel 152b is connected to the second chamber 112 and disconnected from the first chamber 111, the normal temperature air in the first chamber 111 will flow toward the second chamber 112 through the first heat dissipation channel 152a, and the air in the second chamber 112 heated by the outdoor heat exchanger 130 will mainly enter the second heat dissipation channel 152b, thereby separating the normal temperature air and the high temperature air at the heat sink 152 to a certain extent, preventing the normal temperature air from being heated by the high temperature air, and since the temperature difference between the normal temperature air and the circuit board 151 is larger, the heat sink 152 can be cooled more fully, thereby improving the heat dissipation efficiency of the heat sink 152.

[0054] It should be noted that since the rotation of the fan 140 will generate negative pressure, the normal temperature air in the first chamber 111 will be sucked into the second chamber 112 through the first heat dissipation channel 152a, and the high temperature air generated by the fan 140 will basically not flow from the second chamber 112 to the first chamber 111, but will only enter the second heat dissipation channel 152b. The normal temperature air in the first chamber 111 can take away the heat of the heat sink 152 during the flow in the first heat dissipation channel 152a. After the normal temperature air dissipates the heat, the excess heat is supplemented by the high temperature air. The normal temperature air and the high temperature air jointly cool down the heat sink 152, thereby improving the heat dissipation efficiency of the heat sink 152.

[0055] In some embodiments, of the first heat dissipation channel 152 a and the second heat dissipation channel 152 b , the first heat dissipation channel 152 a is disposed closer to the circuit board 151 .

[0056] Since the heating element is the circuit board 151, the closer the position on the heat sink 152 is to the circuit board 151, the higher the temperature. Since the temperature difference between the normal temperature air and the circuit board 151 is greater, more heat on the heat sink 152 can be taken away, and the heat sink 152 can be cooled more fully, that is, the normal temperature air has a better heat dissipation effect on the heat sink 152. Therefore, the first heat dissipation channel 152a is arranged closer to the circuit board 151, which can make the normal temperature air be arranged closer to the circuit board 151, thereby improving the heat dissipation effect on the circuit board 151.

[0057] In some embodiments, of the first heat dissipation channel 152 a and the second heat dissipation channel 152 b , the second heat dissipation channel 152 b is disposed closer to the fan 140 .

[0058] The high-temperature airflow in the second chamber 112 is generated by the rotation of the fan 140. The closer the area is to the fan 140, the faster the air flow rate is. Therefore, the second heat dissipation channel 152b is arranged closer to the fan 140, which can make the high-temperature air flow rate entering the second heat dissipation channel 152b faster, thereby improving the heat dissipation effect on the heat sink 152, and further improving the heat dissipation efficiency of the heat sink 152.

[0059] Specifically, the first chamber 111 and the second chamber 112 are arranged side by side, the circuit board 151 is arranged on the top of the shell 110, the heat sink 152 is arranged below the circuit board 151, the fan 140 is arranged below the heat sink 152, and the first heat dissipation channel 152a is arranged above the second heat dissipation channel 152b, so that the first heat dissipation channel 152a is arranged closer to the circuit board 151, and the second heat dissipation channel 152b is arranged closer to the fan 140.

[0060] In some embodiments, the heat sink 152 is at least partially disposed within the second chamber 112 .

[0061] Since the rapid flow of normal temperature air in the first chamber 111 is caused by the negative pressure generated by the rotation of the fan 140 in the second chamber 112, the air flows faster in an area closer to the fan 140. Therefore, the heat sink 152 is at least partially arranged in the second chamber 112, so that the heat sink 152 can be closer to the fan 140, so that the normal temperature air flowing through the first heat dissipation channel 152a flows faster, thereby improving the heat dissipation effect of the heat sink 152.

[0062] The high-temperature air in the second chamber 112 is generated by the fan 140, and the air flow rate is faster in an area closer to the fan 140. Therefore, the heat sink 152 is at least partially disposed in the second chamber 112, and the second heat dissipation channel 152b can also be disposed closer to the fan 140, so that the high-temperature air flow rate entering the second heat dissipation channel 152b can be faster, thereby improving the heat dissipation efficiency of the heat sink 152.

[0063] Specifically, the heat sink 152 may be partially or completely disposed in the second chamber 112 .

[0064] Of course, in other embodiments, the heat sink 152 may not be disposed in the second chamber 112 , and this is not limited to this.

[0065] In some embodiments, the second heat dissipation channel 152 b is connected to the second chamber 112 in at least two different directions.

[0066] The air volume, air velocity and heat dissipation area will affect the heat dissipation effect of the circuit board 151. The greater the air volume, the faster the air velocity and the larger the heat dissipation area, the better the heat dissipation effect. Conversely, the worse the heat dissipation effect. When the air velocity and heat dissipation area remain unchanged, the second heat dissipation channel 152b is connected to the second chamber 112 in at least two different directions, that is, the second heat dissipation channel 152b has high-temperature air entering in at least two different directions, so that more high-temperature air can enter the second heat dissipation channel 152b, that is, the air volume is increased, thereby improving the heat dissipation efficiency of the heat sink 152.

[0067] Specifically, the second heat dissipation channel 152b can be in a rectangular, circular, polygonal or other shape. When the second heat dissipation channel 152b is rectangular, the bottom and side of the second heat dissipation channel 152b are connected to the second chamber 112, that is, the second heat dissipation channel 152b is connected to the second chamber 112 in two different directions; when the second heat dissipation channel is circular or polygonal, the second heat dissipation channel 152b is connected to the second chamber 112 in multiple different directions, and there is no limitation on this.

[0068] In some embodiments, the heat sink 152 includes a substrate 152c, a partition plate 152d, a plurality of first fins 152e and a plurality of second fins 152f, the substrate 152c is connected to the circuit board 151, the plurality of first fins 152e connect the substrate 152c and the partition plate 152d, the gap between two adjacent first fins 152e forms a first heat dissipation channel 152a, the plurality of second fins 152f are connected to a side of the partition plate 152d away from the first fins 152e, and the gap between two adjacent second fins 152f forms a second heat dissipation channel 152b.

[0069] That is, there are multiple first heat dissipation channels 152a, and adjacent first heat dissipation channels 152a are separated by first fins 152e. When normal temperature air enters the first heat dissipation channels 152a, the first fins 152e can increase the contact area between the normal temperature air and the heat sink 152, thereby increasing the heat dissipation area of ​​the heat sink 152 and improving the heat dissipation efficiency of the heat sink 152.

[0070] Similarly, there are multiple second heat dissipation channels 152b, and adjacent second heat dissipation channels 152b are separated by second fins 152f. When high-temperature air enters the second heat dissipation channels 152b, the second fins 152f can increase the contact area between the high-temperature air and the heat sink 152, thereby increasing the heat dissipation area of ​​the heat sink 152 and improving the heat dissipation efficiency of the heat sink 152.

[0071] Specifically, the first heat dissipation channel 152a and the second heat dissipation channel 152b may be rectangular, trapezoidal, circular, etc. The first heat dissipation channel 152a and the second heat dissipation channel 152b may be arranged in a one-to-one correspondence or may be arranged in a staggered manner, which is not limited.

[0072] Of course, the heat sink 152 as a whole needs to be made of a material with good thermal conductivity, such as aluminum, copper and magnesium among metal materials, and there is no limitation on this.

[0073] In some embodiments, the second fin 152 f is disposed within the second chamber 112 .

[0074] Since the second fin 152f is in contact with the high-temperature air in the second chamber 112, so that the high-temperature air in the second chamber 112 dissipates heat from the heat sink 152, the second fin 152f is arranged in the second chamber 112, so that each part of the second fin 152f can fully contact with the high-temperature air in the second chamber 112, thereby increasing the heat dissipation area of ​​the heat sink 152, thereby improving the heat dissipation efficiency of the heat sink 152.

[0075] Moreover, the high-temperature airflow in the second chamber 112 is generated by the rotation of the fan 140, and the air flow rate is faster in an area closer to the fan 140. Therefore, the second fin 152f is arranged in the second chamber 112 and can be arranged closer to the fan 140, so that the high-temperature air flow rate entering the second heat dissipation channel 152b is faster, thereby improving the heat dissipation effect on the heat sink 152, and further improving the heat dissipation efficiency of the heat sink 152.

[0076] Of course, the first fins 152 e may also be disposed in the second chamber 112 , so that the normal temperature air flowing through the first heat dissipation channel 152 a flows faster, thereby improving the heat dissipation effect of the heat dissipation element 152 .

[0077] In some embodiments, one end of the second heat dissipation channel 152b away from the partition plate 152d is connected to the second chamber 112. In the airflow direction of the first heat dissipation channel 152a, one side of the second heat dissipation channel 152b is connected to the second chamber 112, and the other side is disconnected from the first chamber 111.

[0078] It is obvious that in the airflow direction of the first heat dissipation channel 152a, one side of the second heat dissipation channel 152b is the first chamber 111, and the other side is the second chamber 112. The side of the second heat dissipation channel 152b close to the second chamber 112 is connected to the second chamber 112, and the side close to the first chamber 111 is disconnected from the first chamber 111. Therefore, after the fan 140 rotates to generate negative pressure, the normal temperature air in the first chamber 111 cannot enter the second heat dissipation channel 152b, and can only flow toward the second chamber 112 through the first heat dissipation channel 152a. The air in the second chamber 112 heated by the outdoor heat exchanger 130 mainly enters the second heat dissipation channel 152b, thereby separating the normal temperature air and the high temperature air at the heat sink 152 to a certain extent, preventing the normal temperature air from being heated by the high temperature air. Since the temperature difference between the normal temperature air and the circuit board 151 is larger, the heat sink 152 can be cooled more fully, thereby improving the heat dissipation efficiency of the heat sink 152.

[0079] One end of the second heat dissipation channel 152b away from the partition plate 152d is connected to the second chamber 112, and in the airflow direction of the first heat dissipation channel 152a, one side of the second heat dissipation channel 152b is connected to the second chamber 112, that is, the first heat dissipation channel 152a is connected to the second chamber 112 in two directions, so that more high-temperature air can enter the second heat dissipation channel 152b, thereby improving the heat dissipation effect of the heat sink 152, and further improving the heat dissipation efficiency of the heat sink 152.

[0080] Specifically, the second heat dissipation channel 152b is a rectangle, and one end of the second heat dissipation channel 152b away from the partition plate 152d is the bottom of the rectangle. In the airflow direction of the first heat dissipation channel 152a, one side of the second heat dissipation channel 152b is the side of the rectangle, that is, the bottom and side of the second heat dissipation channel 152b are connected to the second chamber 112.

[0081] Combination Figure 1-Figure 6 In some embodiments, the base plate 152c, the partition plate 152d, the plurality of first fins 152e and the plurality of second fins 152f are integrally formed.

[0082] The base plate 152c, the partition plate 152d, the plurality of first fins 152e and the plurality of second fins 152f are integrally formed, that is, form a whole. Therefore, when installing the heat sink 152, the heat sink 152 can be connected to the circuit board 151 as a whole, without the need to assemble each component separately, thereby improving the installation efficiency of the outdoor unit 100.

[0083] In addition, the base plate 152c, the partition plate 152d, the plurality of first fins 152e and the plurality of second fins 152f are integrally formed, which can also increase the overall strength of the heat sink 152, prevent the heat sink 152 from splitting and being damaged to a certain extent, and increase the service life of the heat sink 152.

[0084] In some embodiments, at least one of the partition plate 152d, the first fin 152e, and the second fin 152f is wavy.

[0085] One or two of the partition plate 152d, the first fin 152e and the second fin 152f may be wavy, or all of the partition plate 152d, the first fin 152e and the second fin 152f may be wavy. The wavy setting can increase the contact area between the high-temperature air / normal-temperature air and the heat sink 152, increase the heat dissipation area of ​​the heat sink 152, and thus improve the heat dissipation efficiency of the heat sink 152.

[0086] Of course, in other embodiments, at least one of the partition plate 152d, the first fin 152e and the second fin 152f may be serrated, which can also increase the contact area between the high-temperature air / normal-temperature air and the heat sink 152, and there is no limitation on this.

[0087] In some embodiments, the outdoor unit 100 further includes a flow guide 160 , which is disposed at a connection between the first heat dissipation channel 152 a and the first chamber 111 to guide the gas in the first chamber 111 into the first heat dissipation channel 152 a .

[0088] The guide member 160 can guide the gas in the first chamber 111 to flow in the direction of the first heat dissipation channel 152a to avoid gas mixing and swirl, and can accelerate the flow speed of the gas, so that the high-temperature air flow rate entering the first heat dissipation channel 152a is faster, thereby improving the heat dissipation effect of the heat sink 152, and further improving the heat dissipation efficiency of the heat sink 152.

[0089] Specifically, the guide member 160 may include a plurality of guide plates 161 arranged at intervals, and guide channels are formed between adjacent guide plates 161 , so that the gas in the first chamber 111 enters the first heat dissipation channel 152 a through the guide channels.

[0090] In some embodiments, the first chamber 111 has an air inlet 113 , which allows outdoor air to enter the first chamber 111 and flow into the first heat dissipation channel 152 a ; wherein the guide member 160 is tilted toward the air inlet 113 .

[0091] The first chamber 111 has an air inlet 113, so that outdoor gas can continuously enter the first chamber 111 through the air inlet 113, so that the gas in the first chamber 111 is sufficient. When the fan 140 in the second chamber 112 rotates to generate negative pressure, it is ensured that enough room temperature air in the first chamber 111 is introduced into the first heat dissipation channel 152a to take away the heat of the heat sink 152, thereby improving the heat dissipation effect of the heat sink 152.

[0092] In addition, outdoor gas can continuously flow into the first chamber 111, and the air circulation in the first chamber 111 can also be accelerated, so that the air in the first chamber 111 is always at room temperature, ensuring that the air entering the first heat dissipation channel 152a is at room temperature, thereby improving the heat dissipation effect of the heat sink 152.

[0093] The guide member 160 is tilted toward the air inlet 113 so that the gas entering from the air inlet 113 can flow toward the first heat dissipation channel 152 a , further ensuring that the air entering the first heat dissipation channel 152 a is at room temperature, thereby improving the heat dissipation effect of the heat dissipation member 152 .

[0094] The air inlet 113 is disposed on the housing 110 , and there may be one or more air inlets 113 , which is not limited. It should be noted that the arrangement of the air inlet 113 needs to ensure that sufficient air from the outside enters the first chamber 111 while not affecting the strength of the housing 110 .

[0095] Specifically, the air inlet 113 can be a shutter that can be opened or closed. When the air conditioner is in working state, the shutter can be opened to allow external air to enter the first chamber 111. When the air conditioner is not in working state, the shutter can be closed to prevent external impurities from entering the first chamber 111.

[0096] In some embodiments, the outdoor unit 100 further includes a baffle 170 , which is disposed at a connection between the second heat dissipation channel 152 b and the first chamber 111 to disconnect the second heat dissipation channel 152 b from the first chamber 111 .

[0097] The baffle 170 and the heat sink 152 are independent components. The baffle 170 is disposed at the connection between the second heat dissipation channel 152b and the first chamber 111 to disconnect the second heat dissipation channel 152b from the first chamber 111, that is, the baffle 170 covers the connection between the second heat dissipation channel 152b and the first chamber 111 to prevent the gas in the first chamber 111 from flowing into the second heat dissipation channel 152b without further changing the structure of the heat sink 152, thereby reducing the manufacturing cost of the heat sink 152.

[0098] Of course, in other embodiments, a baffle 170 may be provided in the second heat dissipation channel 152 b , and the second heat dissipation channel 152 b may also be disconnected from the first chamber 111 , and this is not limited to this.

[0099] In some embodiments, the outdoor unit 100 also includes an integrally formed guide member 160 and a baffle 170; the guide member 160 is arranged at the connection between the first heat dissipation channel 152a and the first chamber 111 to guide the gas in the first chamber 111 to the first heat dissipation channel 152a; the baffle 170 is arranged at the connection between the second heat dissipation channel 152b and the first chamber 111 to disconnect the second heat dissipation channel 152b from the first chamber 111.

[0100] Since the air guide 160 is arranged at the connection between the first heat dissipation channel 152a and the first chamber 111, and the baffle 170 is arranged at the connection between the second heat dissipation channel 152b and the first chamber 111, that is, the air guide 160 and the baffle 170 are arranged on the same side, the air guide 160 and the baffle 170 are integrally formed, so that the air guide 160 and the baffle 170 can be installed at one time without separate installation, thereby reducing the assembly process and assembly time of the outdoor unit 100.

[0101] In addition, the guide member 160 and the baffle plate 170 are integrally formed, which can also increase the overall strength of the guide member 160 and the baffle plate 170 , prevent the guide member 160 and the baffle plate 170 from splitting and being damaged to a certain extent, and increase the service life of the guide member 160 and the baffle plate 170 .

[0102] Of course, in other embodiments, the guide member 160 and the baffle 170 may also be provided separately, which is not limited to this.

[0103] To sum up, in the outdoor unit 100 proposed in the embodiment of the present application, since the heat sink 152 has a first heat dissipation channel 152a and a second heat dissipation channel 152b, the first heat dissipation channel 152a is connected to the first chamber 111 and the second chamber 112, and the second heat dissipation channel 152b is connected to the second chamber 112 and disconnected from the first chamber 111. Therefore, when the air conditioner operates in the cooling mode, the normal temperature air and the high temperature air dissipated by the electric control component 150 can be separated, and the situation in which the normal temperature air is heated by the high temperature air before dissipating the heat to the electric control component 150 is improved as much as possible, so that the normal temperature air can more fully cool down the electric control component 150, thereby improving the heat dissipation efficiency and heat dissipation effect of the electric control component 150.

[0104] Based on the same inventive concept, an embodiment of the present application provides an air conditioner, including the outdoor unit 100 described above.

[0105] Since the air conditioner provided in the embodiment of the present application includes the outdoor unit 100 as proposed above, it has all the beneficial effects of the outdoor unit 100 as proposed above, which will not be described in detail here.

[0106] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples described in this specification.

[0107] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0108] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. An outdoor unit, characterized in that: include: A housing having an independent first chamber and a second chamber; A compressor, an outdoor heat exchanger and a fan, wherein the compressor is arranged in the first chamber, and the fan and the outdoor heat exchanger are arranged in the second chamber; The electronic control component includes a circuit board and a heat sink, wherein the heat sink is thermally connected to the circuit board, and the heat sink has a first heat dissipation channel and a second heat dissipation channel, wherein the first heat dissipation channel connects the first chamber and the second chamber, and the second heat dissipation channel connects the second chamber and is disconnected from the first chamber.

2. The outdoor unit according to claim 1, characterized in that: Of the first heat dissipation channel and the second heat dissipation channel, the first heat dissipation channel is arranged closer to the circuit board.

3. The outdoor unit according to claim 2, characterized in that: Of the first heat dissipation channel and the second heat dissipation channel, the second heat dissipation channel is arranged closer to the fan.

4. The outdoor unit according to claim 1, characterized in that: The heat sink is at least partially disposed in the second chamber.

5. The outdoor unit according to claim 1, characterized in that: The second heat dissipation channel is connected to the second chamber in at least two different directions.

6. The outdoor unit according to any one of claims 1 to 5, characterized in that: The heat sink includes a substrate, a partition plate, a plurality of first fins and a plurality of second fins, the substrate is connected to the circuit board, the plurality of first fins connect the substrate and the partition plate, the gap between two adjacent first fins forms the first heat dissipation channel, the plurality of second fins are connected to a side of the partition plate away from the first fins, and the gap between two adjacent second fins forms the second heat dissipation channel.

7. The outdoor unit according to claim 6, characterized in that: The second fin is disposed in the second chamber.

8. The outdoor unit according to claim 6, characterized in that: One end of the second heat dissipation channel away from the partition plate is connected to the second chamber. In the airflow direction of the first heat dissipation channel, one side of the second heat dissipation channel is connected to the second chamber, and the other side is disconnected from the first chamber.

9. The outdoor unit according to claim 6, characterized in that: The base plate, the partition plate, the first fins, and the second fins are integrally formed.

10. The outdoor unit according to claim 6, characterized in that: At least one of the partition plate, the first fin, and the second fin is wavy.

11. The outdoor unit according to any one of claims 1 to 5, characterized in that: The outdoor unit further includes a flow guide, which is disposed at a connection between the first heat dissipation channel and the first chamber to guide the gas in the first chamber into the first heat dissipation channel.

12. The outdoor unit according to claim 11, characterized in that: The first chamber has an air inlet, and the air inlet can allow outdoor air to enter the first chamber and flow into the first heat dissipation channel; Wherein, the guide member is arranged to be inclined toward the air inlet.

13. The outdoor unit according to any one of claims 1 to 5, characterized in that: The outdoor unit further includes a baffle, which is disposed at a connection between the second heat dissipation channel and the first chamber to disconnect the second heat dissipation channel from the first chamber.

14. The outdoor unit according to any one of claims 1 to 5, characterized in that: The outdoor unit also includes an integrally formed flow guide and baffle; The guide member is disposed at the connection between the first heat dissipation channel and the first chamber to guide the gas in the first chamber into the first heat dissipation channel; The baffle is disposed at a connection between the second heat dissipation channel and the first chamber to disconnect the second heat dissipation channel from the first chamber.

15. An air conditioner, characterized in that: Comprising an outdoor unit as described in any one of claims 1-14.

Images