Air conditioner outdoor unit and air conditioner

By setting partitions and fan components in the outdoor unit of the air conditioner, the direction of airflow is controlled to improve the heat dissipation effect of the main control board, the problem of poor heat dissipation of the main control board in multiple units of the air conditioner is solved, and a more efficient heat dissipation effect is achieved.

CN222143240UActive Publication Date: 2024-12-10MIDEA GRP WUHAN HEATING & VENTILATING EQUIP CO LTD +1
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Patent Information

Application Number
CN202420859118.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-23
Publication Date
2024-12-10
Estimated Expiration
2034-04-23

AI Technical Summary

Technical Problem

The main control board in the one-to-tour multiple units of the air conditioner has poor heat dissipation effect, which makes it difficult for the heat generation to spread rapidly, which may lead to excessive temperature and damage.

Method used

An outdoor air conditioning unit is designed. By setting a partition in the housing assembly, the main control board is set up in the press chamber, and the fan assembly is used to control the air flow in the cooling and heating modes. In order, drive the cold air flow into the press chamber for heat dissipation, and improve the heat dissipation effect of the main control board.

Benefits of technology

It effectively improves the heat dissipation effect of the main control board, prevents too high temperature, extends the service life of the main control board and improves the overall performance of the air conditioner.

✦ Generated by Eureka AI based on patent content.

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Abstract

The air conditioner outdoor unit comprises a shell assembly, a main control panel, a fan assembly and a controller, the shell assembly comprises a shell and a partition plate with a first air passing opening, the partition plate is arranged in the shell and divides the interior of the shell into a fan cavity and a press cavity, the main control panel is arranged in the shell, and the fan assembly is arranged in the shell. And at least part of the structure is located in the press cavity, the fan assembly comprises a first fan, the first fan is arranged at the first air passing opening, and the controller is in signal connection with the fan assembly so as to control the first fan to conduct heat dissipation on the press cavity in at least one of the refrigeration mode and the heating mode. According to the air conditioner outdoor unit, the heat dissipation effect of the main control board can be improved.
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Description

Technical Field

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

[0002] With the development of air conditioning technology, the functions of the main control board in the one-to-many air conditioning unit are gradually increasing, and the heat generated by the main control board is also further increased. Therefore, it is necessary to control the heat generated by the main control board during operation to prevent the temperature from being too high and causing damage to related components.

[0003] However, in the related art, the heat generated by the main control board of the one-to-many unit is difficult to dissipate quickly, and the heat dissipation effect of the main control board is relatively poor. Utility Model Content

[0004] In view of this, the embodiments of the present application hope to provide an air conditioner outdoor unit and an air conditioner that can improve the heat dissipation effect of the main control board.

[0005] To achieve the above object, an embodiment of the present application provides an air conditioner outdoor unit, comprising:

[0006] A shell assembly, the shell assembly comprising a shell and a partition having a first air outlet, the partition being disposed in the shell and separating a fan cavity and a compressor cavity in the shell;

[0007] A main control board disposed in the housing, wherein at least a portion of the main control board is located in the press chamber;

[0008] A fan assembly, the fan assembly comprising a first fan, wherein the first fan is arranged at the first air outlet;

[0009] A controller is connected to the fan assembly by signal to control the first fan to dissipate heat from the compressor cavity in at least one of a cooling mode and a heating mode.

[0010] In one embodiment, the main control board is located at the top side of the first air outlet along the height direction of the shell assembly; and / or,

[0011] The air conditioner outdoor unit includes two wind wheels arranged in the fan cavity, and the two wind wheels are spaced apart along the height direction of the shell assembly. On the projection plane parallel to the rotation axis of the wind wheels, the projection of the first air outlet is located between the projections of the rotation axis of the two wind wheels.

[0012] In one embodiment, the air conditioner outdoor unit includes a first water retaining cap having a first opening, the first water retaining cap is disposed in the fan cavity and blocks the first air outlet, and the first opening is staggered with the first air outlet.

[0013] In one embodiment, the housing has a second air outlet connected to the compressor cavity, the second air outlet is located on a side of the housing facing away from the fan cavity, and the fan assembly also includes a second fan arranged at the second air outlet.

[0014] In one embodiment, the housing has a terminal connection port and a valve avoidance port respectively connected to the press chamber on a side facing away from the fan chamber, the terminal connection port and the valve avoidance port are arranged at intervals along the height direction of the shell assembly, and the second air outlet is located between the terminal connection port and the valve avoidance port; and / or,

[0015] The air conditioner outdoor unit includes a second water retaining cap having a second opening, the second water retaining cap is arranged outside the shell and blocks the second air outlet, and the second opening is staggered with the second air outlet.

[0016] In one embodiment, the housing has an air outlet connected to the fan cavity and a third air outlet connected to the compressor cavity, the air outlet and the third air outlet are respectively located on opposite sides of the housing, and the fan assembly also includes a third fan arranged at the third air outlet.

[0017] In one embodiment, the third air outlet is disposed close to a bottom side of the outer shell along a height direction of the shell assembly.

[0018] In one embodiment, the air conditioner outdoor unit further includes a temperature sensor disposed in the compressor cavity, and the controller is connected to the temperature sensor signal to control the fan assembly according to the detection result of the temperature sensor.

[0019] In one embodiment, the partition is further provided with heat dissipation holes, and the heat dissipation holes are connected to the fan cavity and the compressor cavity.

[0020] In one embodiment, the air conditioner outdoor unit further includes a third water retaining cap having a third opening, wherein the third water retaining cap is disposed in the fan cavity and blocks the heat dissipation hole, and the third opening is staggered with the heat dissipation hole.

[0021] In one embodiment, in the cooling mode, the controller controls the first fan to rotate in a first direction to guide airflow from the compressor cavity to the fan cavity;

[0022] In the heating mode, the controller controls the first fan to rotate in a second direction opposite to the first direction to guide the airflow from the fan cavity to flow into the compressor cavity.

[0023] In one embodiment, the air conditioner outdoor unit further includes a heat dissipation module, and the heat dissipation module is disposed on the main control board.

[0024] Another embodiment of the present application provides an air conditioner, including the air conditioner outdoor unit described above.

[0025] The embodiment of the present application provides an air conditioner outdoor unit and an air conditioner, wherein the air conditioner outdoor unit includes a housing assembly, a main control board, a fan assembly and a controller, wherein the housing assembly includes a shell and a partition having a first air outlet, wherein the partition separates the inside of the shell into a compressor cavity and a fan cavity, and the fan assembly includes a first fan disposed at the first air outlet. By disposing the first fan at the first air outlet, the air conditioner outdoor unit can drive a cold air flow into the compressor cavity for heat dissipation in at least one of a cooling mode and a heating mode, thereby dissipating heat from the main control board having at least a portion of its structure located in the compressor cavity, thereby improving the heat dissipation effect of the main control board. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the structure of an air-conditioning outdoor unit according to an embodiment of the present application;

[0027] Figure 2 for Figure 1 The structure diagram of the air conditioner outdoor unit shown in the figure omits the second water retaining cap;

[0028] Figure 3 for Figure 1 The structure diagram of the air conditioner outdoor unit shown is a diagram with some structures omitted;

[0029] Figure 4 for Figure 3 The schematic diagram of the installation structure of the partition, the main control board, the heat dissipation module, and the first fan shown;

[0030] Figure 5 for Figure 4 The schematic diagram of the installation structure of the partition plate and the first water retaining cap and the third water retaining cap shown;

[0031] Figure 6 for Figure 4 A schematic diagram of the installation structure of the partition plate and another first water retaining cap and a third water retaining cap shown;

[0032] Figure 7 for Figure 6 The structural schematic diagram of the third water retaining cap is shown.

[0033] Description of Reference Numerals

[0034] 10. Shell assembly; 10a. Fan cavity; 10b. Press cavity; 11. Partition; 11a. First air outlet; 11b. Heat dissipation hole; 12. Shell; 12a. Second air outlet; 12b. Terminal connection port; 12c. Valve avoidance port; 12d. Air outlet; 12e. Third air outlet; 20. Main control board; 30. Fan assembly; 31. First fan; 32. Second fan; 33. Third fan; 40. Wind wheel; 50. First water retaining cap; 50a. First opening; 60. Second water retaining cap; 60a. Second opening; 70. Third water retaining cap; 70a. Third opening; 71. Stop section; 72. Interface section; 73. Grille; 80. Heat dissipation module. DETAILED DESCRIPTION

[0035] In the description of the embodiments of the present application, it should be noted that the term "height direction" is based on the attached Figure 3 , Attachment Figure 4 and attached Figure 6 These directional terms are only used to facilitate the description of the embodiments of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0036] The present application embodiment provides an air conditioner outdoor unit. Figure 3 and Figure 4 The air conditioner outdoor unit includes a housing assembly 10, a main control board 20, a fan assembly 30 and a controller.

[0037] The housing assembly 10 includes a shell 12 and a partition 11 having a first air outlet 11 a . The partition 11 is disposed in the shell 12 and separates a fan chamber 10 a and a compressor chamber 10 b in the shell 12 .

[0038] The fan chamber 10a is used to install the wind wheel 40, and the compressor chamber 10b is used to install the compressor.

[0039] The fan chamber 10a and the compressor chamber 10b are connected via a first air port 11a, so that air can flow between the fan chamber 10a and the compressor chamber 10b.

[0040] The main control board 20 is arranged in the outer shell 12, and at least part of its structure is located in the compressor cavity 10b. That is to say, the entire main control board 20 can be arranged in the outer shell 12, or part of the structure of the main control board 20 can be located in the compressor cavity 10b, and another part of the structure of the main control board 20 can be located in the fan cavity 10a.

[0041] The fan assembly 30 includes a first fan 31, which is disposed at the first air outlet 11a. The controller is signal-connected to the fan assembly 30 to control the first fan 31 to dissipate heat from the compressor chamber 10b in at least one of a cooling mode and a heating mode.

[0042] The first fan 31 may be disposed in the first air outlet 11 a or outside the first air outlet 11 a . The first fan 31 drives the air flow to flow between the fan chamber 10 a and the compressor chamber 10 b during operation.

[0043] Depending on the control method, the controller can control the first fan 31 only in the cooling mode to dissipate the heat of the compressor chamber 10b, or can control the first fan 31 only in the heating mode to dissipate the heat of the compressor chamber 10b, or can control the first fan 31 separately in the cooling mode and the heating mode, which is equivalent to dissipating the heat of the compressor chamber 10b in the cooling mode and the heating mode respectively.

[0044] Another embodiment of the present application provides an air conditioner, which includes the air conditioner outdoor unit described in any embodiment of the present application.

[0045] The air conditioner can be a one-to-many unit, that is, one air conditioner outdoor unit is connected to multiple air conditioner indoor units, or the air conditioner can be a one-to-one unit, that is, one air conditioner outdoor unit is connected to one air conditioner indoor unit.

[0046] When the air conditioner is in cooling mode, hot air is blown into the fan chamber 10a of the air conditioner outdoor unit, so the temperature in the fan chamber 10a is higher than the temperature in the compressor chamber 10b and the external ambient temperature. At this time, the controller can control the rotation of the first fan 31 to allow the air flow to flow from the compressor chamber 10b through the first air outlet 11a into the fan chamber 10a, and a negative pressure is generated inside the compressor chamber 10b, so that the cold air flow from the outside can be sucked into the interior of the compressor chamber 10b, and the main control board 20 is cooled and cooled.

[0047] When the air conditioner is in heating mode, cold air is blown in the fan chamber 10a of the air conditioner outdoor unit, so the temperature in the fan chamber 10a is lower than the temperature in the compressor chamber 10b. At this time, the controller can control the rotation of the first fan 31 to allow the cold air flow in the fan chamber 10a to flow from the fan chamber 10a through the first air outlet 11a into the compressor chamber 10b, and dissipate heat and cool the main control board 20.

[0048] It is understandable that when the controller controls the fan assembly 30 so that the first fan 31 dissipates heat to the compressor chamber 10b only in one of the cooling mode and the heating mode, the controller actually only controls the first fan 31 to rotate in the corresponding mode. When the controller controls the fan assembly 30 so that the first fan 31 can dissipate heat to the compressor chamber 10b in the cooling mode and the heating mode, the controller can control the first fan 31 to change the rotation direction so that the first fan 31 can drive the airflow to flow in the set direction in the corresponding mode.

[0049] The air conditioner outdoor unit of the embodiment of the present application is configured with a first air outlet 11a on the partition 11 that separates the compressor chamber 10b and the fan chamber 10a, and a first fan 31 is configured at the first air outlet 11a. This allows a cold air flow to be driven into the compressor chamber 10b for heat dissipation in at least one of the cooling mode and the heating mode. This allows the main control board 20, at least part of which is located in the compressor chamber 10b, to be cooled, thereby improving the heat dissipation effect of the main control board 20.

[0050] In one embodiment, please refer to Figure 3 and Figure 4 In order to better utilize the airflow near the first air outlet 11a to cool the main control board 20, the main control board 20 can be set on the top side of the first air outlet 11a along the height direction of the shell assembly 10 to effectively increase the flow rate of the airflow near the main control board 20 and further enhance the heat dissipation effect. In addition, this setting method is also convenient for arranging the main control board 20.

[0051] For further information, please refer to Figure 3 , the air conditioner outdoor unit may be provided with two wind wheels 40 in the fan cavity 10a, the two wind wheels 40 are spaced apart in the height direction of the housing assembly 10, and the projection of the first air outlet 11a may be located between the projections of the rotation axes of the two wind wheels 40 on the projection plane parallel to the rotation axis of the wind wheels 40. That is to say, for the air conditioner outdoor unit with two wind wheels 40, the first air outlet 11a may be arranged between the two wind wheels 40 as much as possible, so that the two wind wheels 40 can jointly drive the airflow to flow, so as to enhance the heat dissipation effect.

[0052] In one embodiment, please refer to Figure 3 , Figure 5 and Figure 6 The air conditioner outdoor unit includes a first water retaining cap 50 having a first opening 50a. The first water retaining cap 50 is arranged in the fan cavity 10a and blocks the first air outlet 11a. The first opening 50a is staggered with the first air outlet 11a, that is, the first air outlet 11a is indirectly connected to the fan cavity 10a through the first opening 50a, but the first opening 50a is not directly opposite to the first air outlet 11a.

[0053] Exemplarily, the first opening 50 a may be oriented toward the bottom side of the housing 12 , or may be oriented toward the partition 11 , or may be consistent with the air outlet direction of the wind wheel 40 .

[0054] Since water such as rainwater from the outside will enter the fan cavity 10a, the water will splash under the action of the wind wheel 40 during the operation of the wind wheel 40. Therefore, a first water retaining cap 50 is provided to prevent the splashing water from entering the fan cavity 10a from the first air outlet 11a and damaging the components in the fan cavity 10a.

[0055] In one embodiment, please refer to Figure 2 and Figure 3 The housing 12 has a second air outlet 12a connected to the compressor chamber 10b, and the second air outlet 12a is located on the side of the housing 12 away from the fan chamber 10a. The fan assembly 30 also includes a second fan 32 arranged at the second air outlet 12a, and the second fan 32 is used to drive the air flow to flow between the compressor chamber 10b and the external environment.

[0056] According to different control requirements, the controller can control the second fan 32 to rotate so that the airflow in the external environment flows into the compressor chamber 10b, or the controller can control the second fan 32 to rotate so that the airflow in the compressor chamber 10b flows into the external environment.

[0057] The second fan 32 can be configured to rotate in only one direction, or can be configured to be able to change the rotation direction under the control of the controller, that is, the controller can control the second fan 32 to rotate forward or reverse as needed.

[0058] In addition, the controller may control the second fan 32 to rotate independently, or may control the second fan 32 to rotate simultaneously with the first fan 31 .

[0059] The second air outlet 12a is not limited in its location, as long as it is located on the side of the housing 12 away from the fan chamber 10a. Figure 3 The side of the housing 12 away from the fan chamber 10a has a terminal connection port 12b and a valve avoidance port 12c respectively connected to the compressor chamber 10b. The terminal connection port 12b is used for connection between the air conditioner outdoor unit and the air conditioner indoor unit, and the valve avoidance port 12c is used to avoid the valve assembly of the air conditioner outdoor unit. The terminal connection port 12b and the valve avoidance port 12c are arranged at intervals along the height direction of the housing assembly 10, and the second air vent 12a can be located between the terminal connection port 12b and the valve avoidance port 12c, so that the second air vent 12a can be closer to the main control board 20 and other components in the compressor chamber 10b.

[0060] The second fan 32 can also be provided to dissipate heat for the press chamber 10 b, thereby dissipating heat for the main control board 20 . In particular, when the second fan 32 rotates simultaneously with the first fan 31 , the heat dissipation effect of the main control board 20 can be greatly improved.

[0061] For further information, please refer to Figure 1 and Figure 2 The air conditioner outdoor unit can also be provided with a second water retaining cap 60 having a second opening 60a. The second water retaining cap 60 is arranged outside the shell 12 and blocks the second air outlet 12a. The second opening 60a is staggered with the second air outlet 12a. The second water retaining cap 60 is used to enable the second air outlet 12a to be indirectly connected to the external environment through the second opening 60a to effectively prevent debris or water in the external environment from entering the compressor cavity 10b from the second air outlet 12a.

[0062] In one embodiment, please refer to Figures 1 to 3 The housing 12 has an air outlet 12d connected to the fan chamber 10a and a third air outlet 12e connected to the compressor chamber 10b. The wind wheel 40 drives the air flow out of the air outlet 12d during operation. The air outlet 12d and the third air outlet 12e are respectively located on opposite sides of the housing 12. The fan assembly 30 also includes a third fan 33 arranged at the third air outlet 12e. The third fan 33 can also be used to drive the air flow to flow between the compressor chamber 10b and the external environment.

[0063] See also Figures 1 to 3 The third air outlet 12e can be arranged close to the bottom side of the shell 12 along the height direction of the shell assembly 10. The third air outlet 12e arranged on the bottom side is far away from the components and cables in the compressor cavity 10b. Therefore, a water retaining cap may not be provided at the third air outlet 12e, thereby ensuring the air flow velocity at the third air outlet 12e.

[0064] In one embodiment, please refer to Figure 3 and Figure 4 The partition 11 may also be provided with a heat dissipation hole 11b, which connects the fan chamber 10a and the compressor chamber 10b. For example, the heat dissipation hole 11b may be provided near the main control board 20. Since the wind wheel 40 forms a negative pressure in the fan chamber 10a during the rotation process, the airflow in the compressor chamber 10b may also flow into the fan chamber 10a through the heat dissipation hole 11b, thereby also playing a heat dissipation role in the compressor chamber 10b.

[0065] Exemplarily, for an air-conditioning outdoor unit that can control the first fan 31 to dissipate heat in cooling mode, the controller can control the first fan 31 to rotate in a first direction to guide the airflow from the compressor cavity 10b to the fan cavity 10a. At the same time, under the action of the wind wheel 40, the airflow can also flow from the compressor cavity 10b into the fan cavity 10a through the heat dissipation holes 11b, thereby increasing the overall air output of the compressor cavity 10b and effectively improving the heat dissipation effect on the main control board 20.

[0066] Exemplarily, for an air-conditioning outdoor unit that can control the first fan 31 to dissipate heat in the heating mode, the controller can control the first fan 31 to rotate in a second direction opposite to the first direction to guide the airflow from the fan chamber 10a to the compressor chamber 10b. At the same time, under the action of the wind wheel 40, the airflow can also flow from the compressor chamber 10b into the fan chamber 10a through the heat dissipation holes 11b, which is equivalent to the airflow being able to circulate between the compressor chamber 10b and the fan chamber 10a through the first air outlet 11a and the heat dissipation holes 11b. Thereby, the airflow in the compressor chamber 10b can be increased, and the heat dissipation effect on the main control board 20 can be effectively improved.

[0067] In one embodiment, please refer to Figure 5 and Figure 6 The air conditioner outdoor unit also includes a third water retaining cap 70 having a third opening 70a. The third water retaining cap 70 is arranged in the fan cavity 10a and blocks the heat dissipation hole 11b. The third opening 70a is staggered with the heat dissipation hole 11b. The third water retaining cap 70 is used to enable the heat dissipation hole 11b to be indirectly connected to the fan cavity 10a through the third opening 70a, effectively preventing splashing water from entering the compressor cavity 10b from the heat dissipation hole 11b.

[0068] The structure of the third water retaining cap 70 is not limited, for example, please refer to Figure 7 The third water retaining cap 70 includes an interface section 72 and a stop section 71 having a third opening 70a. The interface section 72 is covered on the peripheral side of the heat dissipation hole 11b. The stop section 71 is located on the bottom side of the interface section 72 along the shell assembly 10 and is connected to the interface section 72. The third opening 70a faces the partition 11.

[0069] See also Figure 7 The third water retaining cap 70 may also be provided with a grille 73, which is provided at the connection between the interface section 72 and the stop section 71 to block debris entering the third water retaining cap 70 from the third opening 70a.

[0070] In one embodiment, please refer to Figure 4 The air conditioner outdoor unit further includes a heat dissipation module 80 , which is disposed on the main control board 20 to dissipate heat for the main control board 20 .

[0071] In one embodiment, the outdoor unit of the air conditioner further includes a temperature sensor disposed in the compressor chamber 10b. The controller is signal-connected to the temperature sensor to control the fan assembly 30 according to the detection result of the temperature sensor.

[0072] Specifically, please refer to Figures 2 to 4 , taking the example that the outdoor unit of the air conditioner is simultaneously configured with a first fan 31, a second fan 32, and a third fan 33, and the fan assembly 30 can dissipate heat from the compressor chamber 10b in the cooling mode and the heating mode. The set temperature T0 can be determined according to the limit temperature T of the main control board 20. T0 is lower than T. For example, T0 = T - 5°C.

[0073] In the cooling mode, control the first fan 31 to rotate in the first direction to guide the air flow to flow from the compressor chamber 10b into the fan chamber 10a. When the detected temperature T1 of the temperature sensor is greater than the set temperature T0 and less than the limit temperature T, that is, T > T1 > T0, the third fan 33 can be turned on. After the first set time period t1, use the temperature sensor for detection again.

[0074] If the detected temperature T1 is less than the set temperature T0, that is, T1 < T0, the first fan 31 and the third fan 33 maintain their existing working states.

[0075] If the detected temperature T1 is greater than the set temperature T0, that is, T1 > T0, turn on the second fan 32, which is equivalent to the first fan 31, the third fan 33, and the second fan 32 running simultaneously. After the second fan 32 is turned on and after the second set time period t2, use the temperature sensor for temperature detection again.

[0076] If T > T1 > T0, the first fan 31, the third fan 33, and the second fan 32 maintain their existing working states.

[0077] If T1 < T0, turn off the third fan 33, and the first fan 31 and the second fan 32 remain on. After the third set time t3, use the temperature sensor for detection again. If T1 < T0, the first fan 31 and the second fan 32 maintain their existing working states. If T1 > T0, turn on the third fan 33 again, which is equivalent to the first fan 31, the third fan 33, and the second fan 32 running simultaneously.

[0078] Wherein, when the second fan 32 and the third fan 33 are turned on, both are used to guide the air flow to flow from the external environment into the compressor chamber 10b.

[0079] In addition, when the detected temperature T1 is greater than or equal to the limit temperature T, i.e., T1≥T, the first fan 31, the second fan 32, and the third fan 33 can be turned on simultaneously to control the compressor in the compressor chamber 10b to stop or switch to a low-frequency operation state, and the impeller 40 keeps running to meet the heat dissipation and cooling requirements. When the detected temperature T1 is less than or equal to the set temperature T0, i.e., T1≤T0, the compressor is then controlled to switch to the normal working state.

[0080] In the heating mode, when T>T1>T0, the first fan 31 can be turned on, and the first fan 31 is controlled to rotate in the second direction opposite to the first direction to guide the air flow to flow from the blower chamber 10a into the compressor chamber 10b. After the fourth set time t4, detection is carried out using the temperature sensor.

[0081] If T1<T0, the first fan 31 maintains its existing working state.

[0082] If T1>T0, the second fan 32 and the third fan 33 are turned on simultaneously. Among them, when the second fan 32 and the third fan 33 are turned on, both are used to guide the air flow to flow from the external environment into the compressor chamber 10b. In addition, if T1≥T, when the second fan 32 and the third fan 33 are turned on, the compressor in the compressor chamber 10b can also be controlled to stop or switch to a low-frequency operation state, and the impeller 40 keeps running. When the detected temperature T1 is less than or equal to the set temperature T0, i.e., T1≤T0, the compressor is then controlled to switch to the normal working state.

[0083] The method for controlling the fan assembly 30 according to the detection result of the temperature sensor reasonably controls the start and stop of the first fan 31, the second fan 32, and the third fan 33 under different temperature conditions, and can effectively reduce the overall energy consumption of the fan assembly 30.

[0084] When the air conditioner is first turned on or when the air conditioner stops, the first fan 31, the second fan 32, and the third fan 33 can be turned on. The first fan 31 is controlled to rotate in the second direction, and the second fan 32 and the third fan 33 are controlled to rotate in reverse, that is, to guide the air flow to flow from the blower chamber 10a into the compressor chamber 10b and then from the compressor chamber 10b into the external environment, so as to discharge substances such as dust and light impurities accumulated on the first fan 31, the second fan 32, and the third fan 3.

[0085] In addition, if there are substances such as snow accumulation and light impurities at the second air outlet 12a and / or the third air outlet 12e, by controlling the second fan 32 and the third fan 33 to rotate in reverse, the snow accumulation and light impurities at the second air outlet 12a and / or the third air outlet 12e can also be discharged, so that the second air outlet 12a and / or the third air outlet 12e remains unobstructed.

[0086] When the air conditioner outdoor unit needs to be cleaned internally, no matter whether the air conditioner is in cooling mode or heating mode, the first fan 31, the second fan 32 and the third fan 33 can be turned on, and the first fan 31 can be controlled to rotate in the second direction, and the second fan 32 and the third fan 33 can be controlled to reverse, that is, the airflow is guided to flow from the fan chamber 10a into the compressor chamber 10b, and then from the compressor chamber 10b into the external environment, so as to discharge dust, light impurities and other substances from the interior of the air conditioner outdoor unit, especially on the main control board 20 and the compressor.

[0087] In the description of the present application, the description with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" 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 embodiments of the present application. In the present application, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0088] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application are included in the protection scope of the present application.

Claims

1. An air conditioner outdoor unit, It is characterized in that include: A shell assembly, the shell assembly comprising a shell and a partition having a first air outlet, the partition being disposed in the shell and separating a fan cavity and a compressor cavity in the shell; A main control board disposed in the housing, wherein at least a portion of the main control board is located in the press chamber; A fan assembly, the fan assembly comprising a first fan, wherein the first fan is arranged at the first air outlet; A controller is connected to the fan assembly by signal to control the first fan to dissipate heat from the compressor cavity in at least one of a cooling mode and a heating mode.

2. The air conditioner outdoor unit according to claim 1, It is characterized in that The main control board is located at the top side of the first air outlet along the height direction of the shell assembly; and / or, The air conditioner outdoor unit includes two wind wheels arranged in the fan cavity, and the two wind wheels are arranged at intervals along the height direction of the shell assembly. On the projection plane parallel to the rotation axis of the wind wheels, the projection of the first air outlet is located between the projections of the rotation axis of the two wind wheels.

3. The air conditioner outdoor unit according to claim 1 or 2, It is characterized in that The air conditioner outdoor unit includes a first water retaining cap having a first opening, the first water retaining cap is arranged in the fan cavity and blocks the first air outlet, and the first opening is staggered with the first air outlet.

4. The air conditioner outdoor unit according to claim 1 or 2, It is characterized in that The housing has a second air outlet connected to the compressor cavity, the second air outlet is located on a side of the housing away from the fan cavity, and the fan assembly also includes a second fan arranged at the second air outlet.

5. The air conditioner outdoor unit according to claim 4, It is characterized in that The housing has a terminal connection port and a valve avoidance port respectively connected to the press chamber on one side away from the fan chamber, the terminal connection port and the valve avoidance port are arranged at intervals along the height direction of the shell assembly, and the second air outlet is located between the terminal connection port and the valve avoidance port; and / or, The air conditioner outdoor unit includes a second water retaining cap having a second opening, the second water retaining cap is arranged outside the shell and blocks the second air outlet, and the second opening is staggered with the second air outlet.

6. The air conditioner outdoor unit according to claim 1 or 2, It is characterized in that The housing has an air outlet connected to the fan cavity and a third air outlet connected to the compressor cavity. The air outlet and the third air outlet are respectively located on opposite sides of the housing. The fan assembly also includes a third fan arranged at the third air outlet.

7. The air conditioner outdoor unit according to claim 6, It is characterized in that The third air outlet is disposed close to the bottom side of the outer shell along the height direction of the shell assembly.

8. The air conditioner outdoor unit according to claim 1 or 2, It is characterized in that The air conditioner outdoor unit also includes a temperature sensor disposed in the compressor cavity, and the controller is connected to the temperature sensor signal to control the fan assembly according to the detection result of the temperature sensor.

9. The air conditioner outdoor unit according to claim 1 or 2, It is characterized in that The partition is also provided with heat dissipation holes, and the heat dissipation holes are connected with the fan cavity and the compressor cavity.

10. The air conditioner outdoor unit according to claim 9, It is characterized in that The air conditioner outdoor unit also includes a third water retaining cap having a third opening, the third water retaining cap is arranged in the fan cavity and blocks the heat dissipation hole, and the third opening is staggered with the heat dissipation hole.

11. The air conditioner outdoor unit according to claim 9, It is characterized in that In the cooling mode, the controller controls the first fan to rotate in a first direction to guide airflow from the compressor cavity to the fan cavity; In the heating mode, the controller controls the first fan to rotate in a second direction opposite to the first direction to guide the airflow from the fan cavity to flow into the compressor cavity.

12. The air conditioner outdoor unit according to claim 1 or 2, It is characterized in that The air conditioner outdoor unit further comprises a heat dissipation module, and the heat dissipation module is arranged on the main control board.

13. An air conditioner, It is characterized in that An air conditioner outdoor unit comprising any one of claims 1-12.