Air conditioner outdoor unit, air conditioner and control method of air conditioner

Abstract

The invention relates to the technical field of air conditioners, in particular to an air conditioner outdoor unit, an air conditioner and a control method of the air conditioner outdoor unit, and aims to solve the problem that an existing air conditioner outdoor compressor is poor in indoor temperature adjustment or halts due to large load. In order to achieve the purpose, the outdoor unit comprises a solar power generation module and an auxiliary fan electrically connected with the solar power generation module, the outdoor unit further comprises a machine shell, a compressor cabin is arranged in the machine shell, and the auxiliary fan is arranged on the machine shell and communicates with the compressor cabin through an air duct. The solar power generation module is arranged on the air conditioner outdoor unit, power is supplied to the auxiliary fan through solar energy, the electric quantity of the air conditioner is not consumed, the auxiliary fan communicates with the compressor cabin, when the load of the compressor is large, the compressor is cooled through the auxiliary fan, and then the exhaust temperature and the system pressure are reduced; and meanwhile, the temperature of the computer board outer box body can be reduced, compressor shutdown caused by high temperature is prevented, and the heat exchange effect of an air conditioner is better.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and specifically provides an air conditioner outdoor unit, an air conditioner and a control method thereof. Background Art

[0002] When the outdoor compressor of the air conditioner is cooling in a high temperature environment, the high frequency and heavy load of the air conditioner often lead to too high exhaust temperature of the compressor and too large current. In this case, the air conditioner needs to reduce the frequency, which affects the indoor temperature regulation, or the air conditioner may shut down due to the high load of the air conditioner. Similarly, when the air conditioner is heating, the large load of the air conditioner will also cause the above problems due to the temperature difference between indoor and outdoor.

[0003] Accordingly, there is a need in the art for a new air conditioner outdoor unit to solve the problem that the existing air conditioner outdoor compressor has poor indoor temperature regulation or shuts down due to heavy load. Summary of the invention

[0004] The present invention aims to solve the above technical problem, that is, to solve the problem that the outdoor compressor of the existing air conditioner cannot adjust the indoor temperature well or stops working due to heavy load.

[0005] In a first aspect, the present invention provides an air-conditioning outdoor unit, the outdoor unit comprising a solar power generation module and an auxiliary fan electrically connected to the solar power generation module, the outdoor unit further comprising a casing, a compressor compartment being arranged in the casing, the auxiliary fan being arranged on the casing and connected to the compressor compartment through an air duct.

[0006] When the above technical solution is adopted, a solar power generation module is arranged on the outdoor unit of the air conditioner of the present invention, and the auxiliary fan is powered by solar energy without consuming electricity of the air conditioner. The auxiliary fan is connected to the compressor cabin, so that when the compressor load is large, the compressor is cooled, thereby reducing the exhaust temperature and the system pressure. At the same time, the temperature of the outer box of the computer board can be reduced to prevent the compressor from shutting down due to high temperature, so as to achieve a better heat exchange effect of the air conditioner.

[0007] In an optional technical solution of the above-mentioned air conditioner outdoor unit, a return air baffle is provided in the air duct and can be flipped toward the inside of the air duct or the outside of the air duct.

[0008] When the above technical solution is adopted, when the auxiliary fan rotates forward, the auxiliary fan exhausts air outside the air duct, and the anti-return air baffle turns toward the outside of the air duct, exhausting the hot air in the compressor compartment to the outside of the compressor compartment. When the auxiliary fan rotates reversely, the auxiliary fan draws air into the air duct, and the anti-return air baffle turns toward the inside of the air duct, sucking the air outside the compressor compartment into the compressor compartment. When the auxiliary fan stops, the anti-return air baffle returns to a vertical state to prevent foreign objects outside from entering the compressor compartment and causing safety hazards.

[0009] In the optional technical solution of the above-mentioned air-conditioning outdoor unit, the solar power generation module includes a solar panel, a battery, a relay and a thermistor connected through a circuit, and the circuit is also connected to the auxiliary fan.

[0010] When the above technical solution is adopted, the solar panel generates electricity through light, and is directly connected to the auxiliary fan after passing through the controller. The controller is connected in parallel with the battery pack, which can store electricity for backup when the air conditioner is not turned on. When the relay is energized, the auxiliary fan is powered on and rotates, and the current value in the circuit is adjusted accordingly after the thermistor is heated, thereby realizing the automatic change of the auxiliary fan speed. The characteristic of the thermistor is that the resistance value decreases with the increase of temperature, showing negative temperature sensitivity. When the temperature in the compressor compartment increases, the thermistor value increases, the current in the circuit increases, and the auxiliary fan speed increases. When the temperature in the compressor compartment decreases, the thermistor value decreases, the current in the circuit decreases, and the speed of the auxiliary fan gradually decreases until the circuit is closed and the auxiliary fan stops.

[0011] In an optional technical solution of the above-mentioned air-conditioning outdoor unit, the solar power generation panel is arranged on the top of the casing.

[0012] When the above technical solution is adopted, the space on the top of the outdoor unit can be used for solar power generation.

[0013] In a second aspect, the present invention further provides a control method for an air conditioner, the air conditioner comprising an outdoor unit, the outdoor unit comprising a solar power generation module and an auxiliary fan electrically connected to the solar power generation module, the outdoor unit further comprising a casing, a compressor compartment being arranged in the casing, the auxiliary fan being arranged on the casing and being connected to the compressor compartment through an air duct; the control method for the air conditioner outdoor unit comprises:

[0014] Acquiring the temperature T in the compressor compartment;

[0015] When T≥preset temperature, the auxiliary fan is controlled to turn on.

[0016] When the above technical solution is adopted, the temperature inside the compressor compartment is detected by a temperature sensor. When the temperature inside the compressor compartment rises to a preset temperature, it means that the temperature inside the compressor compartment is high, so the solar-assisted fan is turned on to cool the compressor compartment.

[0017] In the optional technical solution of the control method of the air conditioner, the step of "when T≥preset temperature, controlling the auxiliary fan to turn on" further includes:

[0018] When the air conditioner is in cooling mode and T ≥ the preset temperature, the auxiliary fan is controlled to rotate forward to exhaust air outside the compressor compartment;

[0019] When the air conditioner is in heating mode and T≥preset temperature, the auxiliary fan is controlled to reverse to draw air into the compressor compartment.

[0020] When the above technical solution is adopted, the air conditioner is running in hot weather and performs cooling. Due to the high outdoor temperature, the temperature of the compressor compartment increases and is difficult to cool down after the compressor has been running for a long time, so the air in the compressor compartment is sucked out by the auxiliary fan powered by solar energy. When the air conditioner is heating in winter, the outdoor temperature is low, and the auxiliary fan rotates in the opposite direction to suck the low-temperature outdoor air into the compressor compartment, thereby cooling the inside of the compressor compartment.

[0021] In the optional technical solution of the control method of the air conditioner, the step of "controlling the auxiliary fan to rotate forward to exhaust air outside the compressor compartment when the air conditioner is cooling and T ≥ preset temperature" further includes:

[0022] When T>the first preset temperature, the speed of the auxiliary fan is increased by a first speed value based on the set speed;

[0023] When the second preset temperature ≤ T ≤ the first preset temperature, the rotation speed of the auxiliary fan is increased by a second rotation speed value based on the set rotation speed; wherein the second rotation speed value is less than the first rotation speed value.

[0024] When the temperature in the compressor compartment is higher than the first preset temperature, the first speed value is increased on the basis of the set speed, so as to quickly cool down. When the temperature in the compressor compartment is between the first preset temperature and the second preset temperature, the fan speed is reduced to save energy.

[0025] In the optional technical solution of the control method of the air conditioner, the step of "controlling the auxiliary fan to reverse to draw air into the compressor compartment when the air conditioner is heating and T ≥ preset temperature" further includes:

[0026] When T>the fourth preset temperature, the speed of the auxiliary fan is increased by a third speed value based on the set speed;

[0027] When the fifth preset temperature ≤ T ≤ the fourth preset temperature, the rotation speed of the auxiliary fan is increased by a fourth rotation speed value on the basis of the set rotation speed; wherein the fourth rotation speed value is less than the third rotation speed value.

[0028] When the temperature in the compressor compartment is higher than the fourth preset temperature, the third speed value is increased on the basis of the set speed, so as to quickly reduce the temperature. When the temperature in the compressor compartment is between the fourth preset temperature and the fifth preset temperature, the fan speed is reduced to save energy.

[0029] In an optional technical solution of the above-mentioned air conditioner control method, the control method further includes:

[0030] When T≤the third preset temperature, the auxiliary fan is controlled to stop;

[0031] Among them, the first preset temperature>the second preset temperature>the third preset temperature; the fourth preset temperature>the fifth preset temperature>the third preset temperature.

[0032] When the above technical solution is adopted, when the temperature in the compressor compartment is lower than the third preset temperature, it means that the temperature in the compressor compartment is relatively reasonable, and the auxiliary fan is controlled to stop.

[0033] In a third aspect, the present invention further provides an air conditioner, comprising an air conditioner outdoor unit according to any one of the above technical solutions.

[0034] Those skilled in the art can understand that the outdoor unit of the present invention includes a solar power generation module and an auxiliary fan electrically connected to the solar power generation module, the outdoor unit also includes a casing, a compressor compartment is arranged in the casing, the auxiliary fan is arranged on the casing and is connected to the compressor compartment through an air duct.

[0035] When the above technical solution is adopted, a solar power generation module is arranged on the outdoor unit of the air conditioner of the present invention, and the auxiliary fan is powered by solar energy without consuming electricity of the air conditioner. The auxiliary fan is connected to the compressor cabin, and then when the compressor load is large, the compressor is cooled, thereby reducing the exhaust temperature and the system pressure. At the same time, the temperature of the outer box of the computer board can also be reduced to prevent the compressor from shutting down due to high temperature, so as to achieve a better heat exchange effect of the air conditioner. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0037] Figure 1 It is a structural schematic diagram of an air-conditioning outdoor unit of the present invention;

[0038] Figure 2 Schematic diagram of cross-section comparison of the anti-return air baffle of the present invention at various positions;

[0039] Figure 3 is a circuit schematic diagram of the auxiliary fan of the present invention;

[0040] Figure 4 The main steps of the control method of the air conditioner of the present invention are shown in the flowchart

[0041] Figure 5 is a flowchart of specific steps of an implementation method of the air conditioner control method of the present invention;

[0042] Figure 6 It is a flowchart of specific steps of another implementation method of the air conditioner control method of the present invention.

[0043] List of reference numerals:

[0044] 1. Solar power generation module; 11. Solar panel; 12. Relay; 13. Battery; 14. Thermistor;

[0045] 2. Auxiliary fan;

[0046] 3. Air duct;

[0047] 4. Anti-return air baffle;

[0048] 5. Filter;

[0049] 6. Controller. DETAILED DESCRIPTION

[0050] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific applications. For example, the air conditioner outdoor unit of the present invention can be used for wall-mounted air conditioners, cabinet air conditioners or multi-split air conditioners, etc., and those skilled in the art can set the application object of the air conditioner outdoor unit as needed.

[0051] It should be noted that in the description of the present invention, the terms "top", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0052] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] The air conditioner of the present invention comprises an outdoor unit, an indoor unit and a refrigerant circulation loop arranged between the indoor unit and the outdoor unit. The indoor unit comprises an indoor unit heat exchanger and an indoor unit fan; the outdoor unit comprises an outdoor unit heat exchanger, an outdoor unit fan and a compressor. The indoor unit heat exchanger, the outdoor unit heat exchanger and the compressor are all arranged on the refrigerant circulation loop, and the refrigerant circulates between indoor and outdoor through the refrigerant circulation loop to exchange heat with the indoor environment through the indoor unit, thereby meeting the heat exchange demand of the user.

[0054] During use, the user can control the operation of the air conditioner by setting the temperature. It can be understood by those skilled in the art that the present invention does not impose any restrictions on the specific structure of the air conditioner, and the technician can set the specific structure of the air conditioner according to actual use requirements. Such changes in specific application objects do not deviate from the basic principles of the present invention and belong to the protection scope of the present invention.

[0055] Furthermore, the air conditioner further includes a temperature sensor for detecting the temperature in the compressor compartment and a controller 6. The temperature sensor can be arranged in the compressor compartment or on the housing of the compressor compartment, but there is no restriction on the arrangement position of the temperature sensor, and those skilled in the art can set it as required. The controller 6 can obtain the temperature in the compressor compartment, and the controller 6 can also control the operating state of the air conditioner.

[0056] Reference Figure 1 and Figure 2 In order to solve the problem that the outdoor compressor of the existing air conditioner cannot adjust the indoor temperature well or stops due to heavy load, the outdoor unit of the present invention includes a solar power generation module 1 and an auxiliary fan 2 electrically connected to the solar power generation module 1, the outdoor unit includes a casing, a compressor compartment is arranged in the casing, the auxiliary fan 2 is arranged on the casing, and is connected to the compressor compartment through an air duct 3.

[0057] A solar power generation module 1 is arranged on the outdoor unit of the air conditioner of the present invention, and the auxiliary fan 2 is powered by solar energy without consuming electricity of the air conditioner. The auxiliary fan 2 is connected to the compressor cabin, and thus when the compressor load is large, the compressor is cooled, thereby reducing the exhaust temperature and the system pressure. At the same time, the temperature of the outer box of the computer board can be reduced to prevent the compressor from shutting down due to high temperature, so as to achieve a better heat exchange effect of the air conditioner.

[0058] Continue to refer to Figure 1 and Figure 2In a possible embodiment, the outdoor unit of the present invention includes a solar power generation module 1 and an auxiliary fan 2 electrically connected to the solar power generation module 1. The outdoor unit also includes a casing, a compressor compartment is arranged in the casing, and a compressor is arranged in the compressor compartment. The auxiliary fan 2 is arranged near the upper part of the casing panel and is connected to the compressor compartment in the casing through an air duct 3, and the solar power generation panel is arranged on the top of the casing. The air duct 3 is connected to the internal area of ​​the compressor compartment. Since hot air rises, the heat generated by the compressor compartment and the heat generated by the air conditioner computer board are concentrated in the area near the top of the compressor compartment, so the auxiliary fan 2 is close to the top to improve the cooling effect.

[0059] Specifically, refer to Figure 3 The solar power generation module 1 includes a solar panel 11, a battery 13, a relay 12 and a thermistor 14 connected by a circuit, and the circuit is also connected to the controller 6 and the auxiliary fan 2. The battery 13 can store electric energy for the solar panel 11, so that the auxiliary fan 2 can still be powered when the solar panel 11 is not generating electricity.

[0060] The solar panel 11 generates electricity by light illumination, and is directly connected to the auxiliary fan 2 after passing through the controller 6. The controller 6 is connected in parallel to a battery pack, and can store electricity for standby when the air conditioner is not turned on. When the relay 12 is energized, the auxiliary fan 2 is powered on and rotates, and the current value in the circuit is adjusted accordingly after the thermistor 14 is heated, thereby realizing the automatic change of the rotation speed of the auxiliary fan 2. The characteristic of the thermistor 14 is that the resistance value decreases as the temperature increases, showing negative temperature sensitivity. When the temperature in the compressor compartment increases, the thermistor value increases, the current in the circuit increases, and the rotation speed of the auxiliary fan 2 increases. When the temperature in the compressor compartment decreases, the thermistor value decreases, the current in the circuit decreases, and the rotation speed of the auxiliary fan 2 gradually decreases until the circuit is closed and the auxiliary fan 2 stops.

[0061] Further, refer to Figure 2 A filter screen 5 and a backflow prevention baffle 4 which can be flipped forward or backward are arranged in the air duct 3, and the filter screen 5 is arranged on a side close to the compressor compartment. Figure 2 The first picture on the left side is a schematic diagram of the auxiliary fan 2 rotating forward. When the auxiliary fan 2 rotates forward, the auxiliary fan 2 exhausts air to the outside of the air duct 3, and the anti-return air baffle 4 flips toward the outside of the air duct 3 to discharge the hot air in the compressor compartment to the outside of the compressor compartment. Figure 2 The first picture on the right side is a schematic diagram of the auxiliary fan 2 when it is reversed. When the auxiliary fan 2 is reversed, the auxiliary fan 2 draws air into the air duct 3, and the anti-return air baffle 4 flips toward the air duct 3, sucking the air outside the compressor compartment into the compressor compartment. Figure 2 The middle picture is a schematic diagram of the auxiliary fan being shut down. When the auxiliary fan 2 is shut down, the anti-return air baffle 4 returns to a vertical state to prevent foreign objects outside from entering the compressor compartment and causing safety hazards.

[0062] In summary, the air conditioner of the present invention increases the air volume and heat dissipation of the compressor through solar power supply, thereby improving the heat exchange effect without additional power consumption, reducing the system pressure, and improving the cooling and heating effects.

[0063] As stated in the first paragraph of this section, the above implementation mode is only used to illustrate the principles of the present invention and is not intended to limit the scope of protection of the present invention. Without departing from the principles of the present invention, those skilled in the art can adjust the above structure so that the present invention can be applied to more specific application scenarios.

[0064] In addition, the present invention also provides a method for controlling an air conditioner, referring to Figure 4 , the main steps of the control method include:

[0065] Step S10: obtaining the temperature T in the compressor compartment;

[0066] Step S20: When T≥preset temperature, the auxiliary fan is controlled to turn on.

[0067] The temperature in the compressor compartment is detected by a temperature sensor. When the temperature in the compressor compartment rises to a preset temperature, it indicates that the temperature in the compressor compartment is relatively high. Therefore, the solar-assisted fan 2 is turned on to cool the compressor compartment.

[0068] Specifically, refer to Figure 5 The specific steps of the air conditioner control method of the present invention include:

[0069] Step S31: the air conditioner is in cooling operation;

[0070] Step S32: obtaining the temperature T in the compressor compartment;

[0071] Step S33: Determine whether T>first adjustment temperature holds.

[0072] Step S34: If the judgment result is yes, the relay is closed to control the auxiliary fan to rotate forward to exhaust air outside the compressor compartment;

[0073] Step S35: when T>the first preset temperature, the fan speed is increased by a first speed value based on the set speed;

[0074] Step S36: when the second preset temperature ≤ T ≤ the first preset temperature, the fan speed is increased by a second speed value based on the set speed;

[0075] Step S37: When T≤the third preset temperature, the auxiliary fan stops; wherein, the first speed value>the second speed value; the first preset temperature>the second preset temperature>the third preset temperature, and the second preset temperature>the first adjustment temperature>the third preset temperature.

[0076] When the air conditioner is running in high temperature weather, the air conditioner performs cooling. Due to the high outdoor temperature, the temperature of the compressor compartment rises and is difficult to cool down after the compressor has been running for a long time. Therefore, the auxiliary fan 2 powered by solar energy is used to suck out the air in the compressor compartment to cool down the compressor compartment.

[0077] As an example, the first adjustment temperature is set to 70°C, the first preset temperature is set to 80°C, the second preset temperature is set to 75°C, the third preset temperature is set to 60°C, the first speed value is set to 200 rpm, and the second speed value is set to 100 rpm.

[0078] If the temperature T in the compressor compartment is greater than 70°C, it means that the compressor compartment needs to be cooled, and the control relay 12 is closed, and the auxiliary fan 2 rotates forward to exhaust air to the outside of the compressor compartment for cooling. If the temperature in the compressor compartment is lower than 70°C, it means that the compressor compartment does not need to be cooled at present.

[0079] After the auxiliary fan is turned on, the temperature in the compressor compartment continues to be detected. When the temperature in the compressor compartment is higher than 80°C, it means that the temperature in the compressor compartment has not dropped rapidly, so 200 revolutions are added to the set speed to increase the cooling speed. If the temperature in the compressor compartment drops to between 75°C and 80°C, the speed of the auxiliary fan 2 can be appropriately lowered, that is, the fan speed is increased by 100 revolutions based on the set speed. If the temperature in the compressor compartment drops below 60°C, it means that the temperature in the compressor compartment has dropped to a suitable temperature, the control relay 12 is turned on, and the auxiliary fan 2 stops running. Among them, the set speed of the auxiliary fan 2 during operation can be set by those skilled in the art according to actual needs, and the present invention does not impose any restrictions on this.

[0080] Reference Figure 6 , the control method of the air conditioner further comprises the following steps:

[0081] Step S41: the air conditioner operates in heating mode;

[0082] Step S42: obtaining the temperature T in the compressor compartment;

[0083] Step S43: Determine whether T>second adjustment temperature holds.

[0084] Step S44: If the judgment result is yes, the relay is closed to control the auxiliary fan to reverse to draw air into the compressor compartment;

[0085] Step S45: When T> the fourth preset temperature, the auxiliary fan is turned on to rotate in reverse, and the fan speed is increased by a third speed value based on the set speed;

[0086] Step S46: when the fifth preset temperature ≤ T ≤ the fourth preset temperature, the fan speed is increased by a fourth speed value based on the set speed; the third speed value is greater than the fourth speed value;

[0087] Step S47: When T≤the third preset temperature, the auxiliary fan is stopped; wherein the fourth preset temperature>the fifth preset temperature>the third preset temperature, the fifth preset temperature>the second adjustment temperature>the third preset temperature.

[0088] When the air conditioner is heating in winter, the outdoor temperature is low. As the compressor runs at high speed for a long time, the temperature in the compressor compartment rises. The auxiliary fan 2 needs to rotate in the opposite direction to draw the low-temperature outdoor air into the compressor compartment, thereby cooling the inside of the compressor compartment.

[0089] As an example, the second adjustment temperature is set to 80°C, the third preset temperature is set to 60°C, the fourth preset temperature is set to 90°C, the fifth preset temperature is set to 85°C, the third speed value is 100 rpm, and the fourth speed value is 50 rpm. Specifically, when the air conditioner is heating, when the temperature in the compressor compartment is higher than 80°C, it means that the compressor compartment needs to be cooled down, the control relay 12 is closed, the auxiliary fan 2 is reversed, and the low-temperature air outside is sucked into the compressor compartment, thereby cooling the inside of the compressor compartment. After the auxiliary fan 2 is turned on, the temperature in the compressor compartment continues to be detected. When the temperature in the compressor compartment is higher than 90°C, 100 rpm is added to the set speed to quickly cool down. When the temperature in the compressor compartment is between 85°C and 90°C, the fan speed is reduced and 50 rpm is added to the set speed. Until the temperature in the compressor compartment is lower than 60°C, it means that the temperature in the compressor compartment is relatively reasonable, the control relay 12 is turned on, and the auxiliary fan 2 is stopped.

[0090] However, it should also be noted that the present invention does not impose any restrictions on the specific numerical values ​​of the first adjustment temperature, the second adjustment temperature, and the first to fifth preset temperatures, nor does it impose any restrictions on the first to fourth speed values ​​of the auxiliary fan. Technical personnel in this field can set them according to their needs, and they all fall within the protection scope of the present invention.

[0091] Those skilled in the art can understand that the above-mentioned air conditioner also includes some other well-known structures, the memory includes but is not limited to random access memory, flash memory, read-only memory, programmable read-only memory, volatile memory, non-volatile memory, serial memory, parallel memory or register, etc., and the processor includes but is not limited to CPLD / FPGA, DSP, ARM processor, MIPS processor, etc. In order to unnecessarily obscure the embodiments of the present disclosure, these well-known structures are not shown in the drawings.

[0092] Although the various steps in the above embodiment are described in the above order, those skilled in the art can understand that in order to achieve the effect of the present embodiment, different steps do not have to be executed in such an order, and they can be executed simultaneously (in parallel) or in a reverse order. For example, those skilled in the art can set the order of the steps as needed, and all of them fall within the protection scope of the present invention.

[0093] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An air conditioner outdoor unit, characterized in that: The outdoor unit includes a solar power generation module and an auxiliary fan electrically connected to the solar power generation module. The outdoor unit includes a casing, a compressor compartment is arranged in the casing, and the auxiliary fan is arranged on the casing and connected to the compressor compartment through an air duct.

2. The air conditioner outdoor unit according to claim 1, characterized in that: The air duct is provided with an anti-return air baffle which can be turned toward the inside of the air duct or the outside of the air duct.

3. The air conditioner outdoor unit according to claim 1, characterized in that: The solar power generation module includes a solar panel, a battery, a relay and a thermistor connected by a circuit, and the circuit is also connected to the auxiliary fan.

4. The air conditioner outdoor unit according to claim 3, characterized in that: The solar panel is arranged on the top of the casing.

5. A method for controlling an air conditioner, characterized in that: The air conditioner comprises an outdoor unit, the outdoor unit comprises a solar power generation module and an auxiliary fan electrically connected to the solar power generation module, the outdoor unit comprises a casing, a compressor compartment is arranged in the casing, the auxiliary fan is arranged on the casing and communicated with the compressor compartment through an air duct; The control method of the air conditioner outdoor unit comprises: Acquiring the temperature T in the compressor compartment; When T≥preset temperature, the auxiliary fan is controlled to turn on.

6. The air conditioner control method according to claim 5, characterized in that: The step of "when T≥preset temperature, controlling the auxiliary fan to turn on" further includes: When the air conditioner is in cooling mode and T ≥ the preset temperature, the auxiliary fan is controlled to rotate forward to exhaust air outside the compressor compartment; When the air conditioner is in heating mode and T≥preset temperature, the auxiliary fan is controlled to reverse to draw air into the compressor compartment.

7. The air conditioner control method according to claim 6, characterized in that: The step of "controlling the auxiliary fan to rotate forward to exhaust air outside the compressor compartment when the air conditioner is cooling and T ≥ preset temperature" further includes: When T>the first preset temperature, the speed of the auxiliary fan is increased by a first speed value based on the set speed; When the second preset temperature ≤ T ≤ the first preset temperature, the rotation speed of the auxiliary fan is increased by a second rotation speed value based on the set rotation speed; wherein the second rotation speed value is less than the first rotation speed value.

8. The control method of the air conditioner according to claim 7, characterized in that: The step of "controlling the auxiliary fan to reverse to draw air into the compressor compartment when the air conditioner is heating and T ≥ preset temperature" further includes: When T>the fourth preset temperature, the speed of the auxiliary fan is increased by a third speed value based on the set speed; When the fifth preset temperature ≤ T ≤ the fourth preset temperature, the rotation speed of the auxiliary fan is increased by a fourth rotation speed value on the basis of the set rotation speed; wherein the fourth rotation speed value is less than the third rotation speed value.

9. The air conditioner control method according to claim 6, characterized in that: The control method further comprises: When T≤the third preset temperature, the auxiliary fan is controlled to stop; Among them, the first preset temperature>the second preset temperature>the third preset temperature; the fourth preset temperature>the fifth preset temperature>the third preset temperature.

10. An air conditioner, characterized in that: The air conditioner comprises the air conditioner outdoor unit according to any one of claims 1 to 4.

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