Chip cooling control method for air conditioner

Abstract

The present invention relates to a chip cooling control method for an air conditioner. The air conditioner comprises an outdoor unit, the outdoor unit comprising a computer board on which the chip is located, a heat sink connected to the computer board, and a cooling fan capable of dissipating heat from the heat sink. The chip cooling control method comprises: detecting an external ambient temperature Tw; determining an initial rotational speed of the cooling fan based on the external ambient temperature Tw; determining whether the external ambient temperature Tw is greater than or equal to an external ambient temperature threshold Tws; when the external ambient temperature Tw is greater than or equal to the external ambient temperature threshold Tws, detecting a chip temperature Td; and determining whether to increase the rotational speed of the cooling fan based on the chip temperature Td. By providing an independent cooling fan and employing a corresponding chip cooling control method, the air conditioner can more effectively cool the computer board and chip, thereby ensuring a good operating condition for the compressor, improving the air conditioner's temperature regulation effect, and thereby enhancing the user experience.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a chip temperature reduction control method for air conditioning. Background Art

[0002] Air conditioners are essential household appliances in today's lives. They primarily consist of a cooling system, ventilation system, electrical system, cabinet, and panel. Air conditioners allow users to adjust and control parameters such as temperature, humidity, and air flow within buildings or structures, providing a more comfortable living environment.

[0003] An air conditioner consists of an outdoor unit and an indoor unit. The outdoor unit is typically equipped with a computer board that controls the various components of the air conditioner. During operation, the computer board generates a significant amount of heat, which can cause the chips on the board to overheat. This can lead to compressor throttling and shutdown, limiting the air conditioner's ability to regulate temperature when the computer board is hot, and impacting the user experience. Therefore, a heat sink is typically attached to the computer board. By directing airflow generated by an external fan toward the heat sink, the air flowing between the heat sinks removes heat from the computer board, thereby cooling the computer board and chips.

[0004] However, using an external fan to dissipate heat has a limited amount of airflow, resulting in poor cooling. Furthermore, when the air conditioner is in cooling mode, the airflow generated by the external fan passes through the condenser and heats the condenser, affecting the heat dissipation efficiency of the heat sink. This can even cause the computer board to overheat, triggering the compressor to shut down. Furthermore, this technical solution makes it difficult to control the volume and speed of the air directed to the heat sink from the external fan.

[0005] Therefore, this field needs a new technical solution to solve the above problems. Summary of the Invention

[0006] To address the aforementioned problems in the prior art, namely, to address the technical issues in the prior art whereby the airflow generated by an air conditioner outdoor unit is directed to a heat sink to cool a computer board chip, which is poorly effective and difficult to control in terms of air volume and speed, the present invention provides a chip cooling control method for an air conditioner. The air conditioner comprises an outdoor unit, the outdoor unit comprising a computer board on which the chip is located, a heat sink connected to the computer board, and a cooling fan capable of dissipating heat from the heat sink. The chip cooling control method comprises:

[0007] Detect the external ambient temperature Tw;

[0008] Determining an initial rotation speed of the cooling fan based on the external ambient temperature Tw;

[0009] Determine whether the external environment temperature Tw is greater than or equal to an external environment temperature threshold Tws;

[0010] When the external environment temperature Tw is greater than or equal to the external environment temperature threshold Tws, detecting the chip temperature Td;

[0011] It is determined whether to increase the rotation speed of the cooling fan based on the chip temperature Td.

[0012] The air conditioner of the present invention, by providing an independent cooling fan on the outdoor unit, can assist the heat dissipation of the computer board's heat sink, thereby effectively reducing the temperature of the computer board and chips. By adopting the above-mentioned control method, the air conditioner of the present invention can determine whether to adjust the cooling fan speed based on the external ambient temperature, and adjust the cooling fan speed based on the chip temperature, thereby more effectively cooling the computer board and chips under high temperature conditions, thereby ensuring the optimal working condition of the compressor, improving the air conditioner's temperature regulation effect, and enhancing the user experience.

[0013] In the preferred technical solution of the above-mentioned chip cooling control method for air conditioning, the chip cooling control method includes:

[0014] Determine whether the chip temperature Td is greater than or equal to a first preset temperature Ta;

[0015] When the chip temperature Td is greater than or equal to the first preset temperature Ta, the rotation speed of the cooling fan is increased.

[0016] Through the above settings, when the chip temperature is relatively high, that is, when the chip temperature is higher than the first preset temperature Ta, increasing the speed of the cooling fan can enhance the heat dissipation capacity of the heat sink, thereby promoting the cooling of the computer board and the chip to ensure the normal operation of the outdoor unit.

[0017] In the preferred technical solution of the above-mentioned chip cooling control method for air conditioners, the chip cooling control method further includes: when the chip temperature Td is greater than or equal to the first preset temperature, increasing the operating frequency of the compressor of the air conditioner.

[0018] Through the above settings, when the chip temperature is relatively high, the speed of the cooling fan is increased to promote the cooling of the computer board and the chip. Therefore, on this basis, the operating frequency of the compressor can be increased to a certain extent to keep the compressor running in good working conditions, thereby improving the temperature regulation effect of the air conditioner.

[0019] In the preferred technical solution of the above-mentioned chip cooling control method for air conditioning, the chip cooling control method includes:

[0020] After increasing the operating frequency of the compressor of the air conditioner, re-detecting the chip temperature Td;

[0021] Determining whether the re-measured chip temperature Td is greater than or equal to a second preset temperature Tb, and whether the second preset temperature Tb is greater than the first preset temperature Ta;

[0022] When the re-measured chip temperature Td is lower than the second preset temperature Tb, the current rotation speed of the cooling fan and the current operating frequency of the compressor are maintained.

[0023] Through the above settings, when the chip temperature is higher than the first preset temperature and lower than the second preset temperature, the chip is in a suitable operating temperature range. At this time, maintaining the current speed of the cooling fan and the operating frequency of the compressor is conducive to ensuring that the compressor maintains a good working condition, thereby ensuring the effect of air conditioning temperature regulation.

[0024] In the preferred technical solution of the above-mentioned chip cooling control method for air conditioning, the chip cooling control method includes:

[0025] When the re-measured chip temperature Td is greater than or equal to the second preset temperature Tb, determining whether the re-measured chip temperature is greater than a third preset temperature Tc, and the third preset temperature Tc is greater than the second preset temperature Tb;

[0026] When the re-measured chip temperature Td is greater than the third preset temperature Tc, the compressor is controlled to stop.

[0027] Through the above-mentioned setting, when the chip temperature is too high, that is, when the chip temperature is greater than the third preset temperature, the compressor shutdown protection is triggered, thereby avoiding damage to the machine.

[0028] In the preferred technical solution of the above-mentioned chip cooling control method for air conditioning, the chip cooling control method includes:

[0029] When the re-measured chip temperature Td is lower than the third preset temperature Tc, the rotation speed of the cooling fan is increased and the operating frequency of the compressor is reduced.

[0030] Through the above settings, when the chip temperature is between the second preset temperature and the third preset temperature, the chip temperature is high. Increasing the speed of the cooling fan is conducive to effectively enhancing the heat dissipation capacity of the heat sink, and reducing the operating frequency of the compressor can further reduce the temperature of the computer board and the chip, thereby ensuring the normal operation of the compressor.

[0031] In the preferred technical solution of the aforementioned chip cooling control method for an air conditioner, when the chip temperature Td is less than the first preset temperature Ta, the air conditioner's compressor operating frequency is increased while maintaining the current speed of the cooling fan. With this arrangement, when the chip temperature is low, i.e., when the chip temperature is below the first preset temperature, increasing the compressor operating frequency helps enhance the air conditioner's temperature regulation effectiveness, thereby improving the user experience.

[0032] In the preferred technical solution of the above-mentioned chip cooling control method for air conditioning, the chip cooling control method further includes:

[0033] When the external ambient temperature Tw is lower than the external ambient temperature threshold Tws, the initial rotation speed of the cooling fan is maintained.

[0034] Through the above-mentioned setting, the air conditioner of the present invention can control the speed of the cooling fan according to the external environment temperature, thereby cooling the computer board and chip according to actual conditions, which is more intelligent and reasonable.

[0035] In the preferred technical solution of the chip cooling control method for air conditioners, the cooling fan speed is increased by 50 r / min. This configuration can increase the cooling fan's air volume and speed to a certain extent, effectively reducing the temperature of the computer board and chip, thereby helping the compressor maintain good operating conditions.

[0036] In the preferred technical solution of the chip cooling control method for air conditioning, the initial rotation speed is 1000-2000 r / min. Through the above setting, the cooling fan can effectively remove the heat from the heat sink, thereby helping to reduce the temperature of the computer board and chip. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0038] Figure 1 This is a flow chart of a chip temperature reduction control method for air conditioners according to the present invention;

[0039] Figure 2 It is a flow chart of an embodiment of the chip temperature reduction control method for air conditioner of the present invention. DETAILED DESCRIPTION

[0040] 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.

[0041] It should be noted that, in the description of the present invention, the terms "first", "second" and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance.

[0042] Furthermore, it should be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0043] To address the technical issues in the prior art whereby the airflow generated by an air conditioner outdoor unit is directed to a heat sink to cool a computer board chip, resulting in poor cooling performance and difficulty controlling the air volume and speed, the present invention provides a chip cooling control method for an air conditioner. The air conditioner of the present invention comprises an air conditioner outdoor unit, the air conditioner outdoor unit comprising a computer board on which a chip is located, a heat sink connected to the computer board, and a cooling fan capable of dissipating heat from the heat sink. The chip cooling control method comprises:

[0044] Detecting the external ambient temperature Tw (step S1);

[0045] Determining the initial speed of the cooling fan based on the external ambient temperature Tw (step S2);

[0046] Determine whether the external ambient temperature Tw is greater than or equal to the external ambient temperature threshold Tws (step S3);

[0047] When the external environment temperature Tw is greater than or equal to the external environment temperature threshold Tws, the chip temperature Td is detected (step S4);

[0048] Based on the chip temperature Td, it is determined whether to increase the rotation speed of the heat dissipation fan (step S5).

[0049] In one or more embodiments, the air conditioner of the present invention includes an outdoor unit. The outdoor unit includes, but is not limited to, an electronic control chassis, a computer board, a heat sink, and a cooling fan. The computer board is disposed in the electronic control chassis and is connected to the heat sink so that the heat sink can remove heat generated by the computer board. A cooling fan is also disposed on the electronic control chassis. The cooling fan is an axial flow fan and is configured to dissipate heat from the heat sink by forcing air to flow through the heat sink and remove heat from the heat sink, thereby achieving the purpose of cooling the computer board and the chips thereon. In alternative embodiments, the cooling fan may also be a centrifugal fan, a mixed flow fan, or any other suitable fan, as long as it can assist the heat sink in dissipating heat and thereby reduce the temperature of the computer board and chips.

[0050] Figure 1This is a flow chart of the chip cooling control method for air conditioners according to the present invention. Figure 1 As shown, in one or more embodiments, when the chip cooling control method for an air conditioner of the present invention begins, step S1 is first executed, namely, detecting the external ambient temperature Tw. An external ambient temperature sensor is provided on the electrical control box and is configured to establish a communication connection with the control system of the electrical control box so as to promptly transmit the measured temperature signal to the control system. Then, step S2 is executed, namely, determining the initial speed of the cooling fan based on the external ambient temperature Tw. The corresponding cooling fan speed varies depending on the external ambient temperature Tw. It is understood that the higher the external ambient temperature Tw, the higher the corresponding cooling fan speed. In one or more embodiments, the initial speed of the cooling fan is 1000-2000 r / min. In alternative embodiments, the initial speed of the cooling fan can be other suitable values and can be flexibly set according to actual needs, as long as the cooling fan can effectively remove heat from the heat sink, thereby promoting the reduction of the temperature of the computer board and chip. Simultaneously or subsequently, step S3 is executed, namely, determining whether the external ambient temperature Tw is greater than or equal to an external ambient temperature threshold Tws. In one or more embodiments, the external ambient temperature threshold Tws is 45 degrees Celsius. In an alternative embodiment, the external environment temperature threshold Tws may also be other suitable values, which can be flexibly set according to actual needs. Then, the chip cooling control method proceeds to step S4, that is, when the external environment temperature Tw is greater than or equal to the external environment temperature threshold Tws, the chip temperature Td is detected. Then, step S5 is executed, that is, based on the chip temperature Td, it is determined whether to increase the speed of the cooling fan. When the external environment temperature is too high, the air conditioner of the present invention can adjust the speed of the cooling fan according to the temperature of the chip, thereby more effectively cooling the computer board and the chip, ensuring that the compressor operates under good working conditions, and then ensuring the effect of the air conditioner in adjusting the temperature, which is conducive to improving the user experience. After executing step S5, the chip cooling control method ends.

[0051] Figure 2 FIG. 1 is a flow chart of an embodiment of the present invention for a chip cooling control method for an air conditioner. Figure 2As shown, in one or more embodiments, when the chip cooling control method for an air conditioner of the present invention begins, step S1 is first executed, namely, detecting the external ambient temperature Tw. An external ambient temperature sensor is provided on the electrical control box and is configured to establish a communication connection with the control system of the electrical control box so as to promptly transmit the measured temperature signal to the control system. Then, step S2 is executed, namely, determining the initial speed of the cooling fan based on the external ambient temperature Tw. The corresponding cooling fan speed varies depending on the external ambient temperature Tw. It is understood that the higher the external ambient temperature Tw, the higher the corresponding cooling fan speed. In one or more embodiments, the initial speed of the cooling fan is 1000-2000 r / min. In alternative embodiments, the initial speed of the cooling fan can be other suitable values and can be flexibly set according to actual needs, as long as the cooling fan can effectively remove heat from the heat sink, thereby promoting the reduction of the temperature of the computer board and chip. Simultaneously or subsequently, step S31 is executed, namely, determining whether the external ambient temperature Tw is greater than or equal to an external ambient temperature threshold Tws. In one or more embodiments, the external ambient temperature threshold Tws is 45 degrees Celsius. In alternative embodiments, the ambient temperature threshold Tws may be another suitable value and can be flexibly set based on actual needs. When the ambient temperature Tw is below 45 degrees Celsius, i.e., when the determination result of step S31 is negative, step S32 is executed, i.e., the initial speed of the cooling fan is maintained. After step S32 is executed, the control method ends.

[0052] If the judgment result in step S31 is yes, that is, when the external ambient temperature Tw is above 45 degrees Celsius, the air conditioner outdoor unit is operating at a very high ambient temperature. Step S41 is then executed to detect the chip temperature Td. In one or more embodiments, a chip temperature sensor is also provided within the electronic control chassis. The chip temperature sensor is capable of monitoring the chip temperature Td in real time and is configured to establish a communication connection with the control system to promptly transmit the measured temperature signal to the control system. Then, step S51 is executed to determine whether the chip temperature Td is greater than or equal to a first preset temperature Ta. In one or more embodiments, the first preset temperature Ta is 90 degrees Celsius. In alternative embodiments, the first preset temperature Ta can be any other suitable value and can be flexibly set according to actual needs. If the chip temperature Td is less than 90 degrees Celsius, that is, if the judgment in step S51 is no, step S52 is executed to increase the compressor operating frequency H while maintaining the current speed of the cooling fan. It is easy to imagine that when the chip temperature is below the first preset temperature Ta, it indicates that the chip temperature has not yet reached a relatively high state. Therefore, the compressor operating frequency H can be increased to a certain extent, thereby improving the temperature adjustment effect of the air conditioner. Specifically, the boosted compressor operating frequency H can be calculated according to the formula: H = H0 + m(Ta - Td). Here, H0 is the compressor operating frequency before the boost, and m is a frequency boost coefficient greater than 0.1 and less than 1. In alternative embodiments, m may also have other suitable values. It should be noted that in the chip cooling control method of the present invention, when the compressor operating frequency H calculated according to the formula is greater than the maximum allowable compressor operating frequency Hmax, the compressor defaults to operating at the maximum allowable compressor operating frequency Hmax. After boosting the compressor operating frequency, a determination is made as to whether the current compressor operating frequency H is greater than or equal to the maximum allowable compressor operating frequency Hmax, i.e., step S54. If the determination is negative, the process returns to step S41 and continues to detect the chip temperature Td. If the determination result of step S54 is yes, i.e., when the compressor operating frequency has reached the maximum allowable compressor operating frequency Hmax, the compressor operates at its maximum allowable compressor operating frequency Hmax, and step S42 is executed, i.e., detecting the chip temperature Td again.

[0053] Continue to see Figure 2If the judgment in step S51 is yes, that is, when the chip temperature Td is higher than 90 degrees Celsius, step S53 is executed to increase the speed of the cooling fan and the compressor operating frequency H. When the chip temperature Td is higher than the first preset temperature Ta, it indicates that the chip temperature has reached a high state, and the cooling fan speed can be increased. In one or more embodiments, the chip cooling control method of the present invention increases the cooling fan speed at an increase rate of 50 r / min. In alternative embodiments, the cooling fan speed can also be increased at any other suitable increase rate, such as 100 r / min. It should be noted that in the chip cooling control method of the present invention, when the increased cooling fan speed exceeds the maximum allowable speed of the cooling fan, the cooling fan defaults to operating at its maximum allowable speed. While increasing the cooling fan speed, the compressor operating frequency H can be appropriately increased to improve the temperature adjustment effect of the air conditioner. Specifically, the increased compressor operating frequency H can be calculated according to the formula: H = H0 + p(Tb-Ta). Where H0 is the compressor operating frequency before the increase, and p is the frequency increase coefficient greater than 0.1 and less than 1. In alternative embodiments, p may also be other suitable values. It should be noted that in the chip cooling control method of the present invention, when the compressor operating frequency H calculated according to the formula is greater than the maximum allowable operating frequency Hmax of the compressor, the default setting is to operate at the maximum allowable operating frequency Hmax of the compressor. In alternative embodiments, it is also possible to increase only the speed of the cooling fan without increasing the operating power of the compressor. After executing step S53, step S42 is executed, i.e., the chip temperature Td is detected again.

[0054] like Figure 2 As shown, after executing step S42, step S55 is executed, i.e., determining whether the re-measured chip temperature Td is greater than or equal to the second preset temperature Tb. It should be noted that the second preset temperature Tb is greater than the first preset temperature Ta. In one or more embodiments, the second preset temperature Tb is 95 degrees Celsius. In alternative embodiments, the second preset temperature Tb may also be other suitable values, which can be flexibly set according to actual needs. When the re-measured chip temperature Td is less than the second preset temperature Tb, it means that the chip is at a more appropriate operating temperature, and step S56 is executed, i.e., maintaining the current speed of the cooling fan and the current operating frequency of the compressor. Then, step S61 is executed, i.e., determining whether to shut down. When the judgment is no, return to step S41, i.e., detect the chip temperature Td. When the judgment is yes, the compressor is shut down, and the chip cooling control method ends.

[0055] When the remeasured chip temperature Td is greater than or equal to the second preset temperature Tb, that is, when the judgment result of step S55 is yes, step S57 is executed to determine whether the remeasured chip temperature Td is greater than or equal to the third preset temperature Tc. It should be noted that the third preset temperature Tc is greater than the second preset temperature Tb. In one or more embodiments, the third preset temperature Tc is 100 degrees Celsius. In alternative embodiments, the third preset temperature Tc can also be any other suitable value and can be flexibly set according to actual needs. If the judgment result of step S57 is no, it indicates that the remeasured chip temperature is between 95 degrees Celsius and 100 degrees Celsius, indicating that the chip temperature is already very high, and it is necessary to increase the heat dissipation of the computer board and chip. Therefore, step S58 is executed to increase the fan speed and reduce the compressor operating frequency. In one or more embodiments, the chip cooling control method of the present invention increases the cooling fan speed at an increase rate of 50 rpm. In alternative embodiments, the cooling fan speed can also be increased at any other suitable increase rate, such as 100 rpm. It should be noted that in the chip cooling control method of the present invention, when the speed of the cooling fan after the increase in speed exceeds the maximum speed allowed for the cooling fan, the cooling fan defaults to running at the maximum speed allowed for its operation. While increasing the speed of the cooling fan, the operating frequency H of the compressor is appropriately reduced to ensure the normal operation of the compressor and avoid shutdown protection. Specifically, the operating frequency H of the compressor after frequency reduction can be calculated according to the formula: H = H0-n(Td-Ta). Among them, H0 is the operating frequency of the compressor before frequency reduction, and n is a frequency reduction coefficient greater than 0.1 and less than 1. In an alternative embodiment, n can also be other suitable values. It should be noted that in the chip cooling control method of the present invention, when the compressor operating frequency H calculated according to the formula is lower than the minimum operating frequency Hmin allowed for the compressor, the default is to run according to the minimum operating frequency Hmin allowed for the compressor. After executing step S58, return to step S42, that is, detect the chip temperature Td again.

[0056] Continue to see Figure 2 When the judgment result of step S57 is yes, that is, when the chip temperature Td is greater than or equal to the third preset temperature Tc, step S62 is executed, that is, the compressor is controlled to shut down. At this time, the chip temperature Td exceeds 100 degrees Celsius, which is too high, triggering the compressor shutdown protection. After executing step S62, the chip cooling control method ends. It can be understood that after shutdown, the chip will gradually cool down on its own. When the chip temperature is lower than its recovery operating temperature T0 (for example, lower than 20 degrees Celsius), the air conditioner resumes operation and restarts the chip cooling control method of the present invention.

[0057] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A chip cooling control method for air conditioning, characterized in that: The air conditioner has an air conditioner outdoor unit, the air conditioner outdoor unit has a computer board on which the chip is located, a heat sink connected to the computer board, and a cooling fan capable of dissipating heat from the heat sink, and the chip temperature control method includes: Detect the external ambient temperature Tw; Determining an initial rotation speed of the cooling fan based on the external ambient temperature Tw; Determine whether the external environment temperature Tw is greater than or equal to an external environment temperature threshold Tws; When the external environment temperature Tw is greater than or equal to the external environment temperature threshold Tws, detecting the chip temperature Td; Determine whether to increase the speed of the cooling fan based on the chip temperature Td, Wherein, determining whether the chip temperature Td is greater than or equal to a first preset temperature Ta; When the chip temperature Td is greater than or equal to the first preset temperature Ta, the rotation speed of the cooling fan is increased, and the operating frequency of the compressor of the air conditioner is increased.

2. The chip cooling control method for air conditioner according to claim 1, characterized in that: The chip temperature reduction control method includes: After increasing the operating frequency of the compressor of the air conditioner, re-detecting the chip temperature Td; Determining whether the re-measured chip temperature Td is greater than or equal to a second preset temperature Tb, and whether the second preset temperature Tb is greater than the first preset temperature Ta; When the re-measured chip temperature Td is lower than the second preset temperature Tb, the current rotation speed of the cooling fan and the current operating frequency of the compressor are maintained.

3. The chip cooling control method for air conditioner according to claim 2, characterized in that: The chip temperature reduction control method includes: When the re-measured chip temperature Td is greater than or equal to the second preset temperature Tb, determining whether the re-measured chip temperature is greater than a third preset temperature Tc, and the third preset temperature Tc is greater than the second preset temperature Tb; When the re-measured chip temperature Td is greater than the third preset temperature Tc, the compressor is controlled to stop.

4. The chip cooling control method for air conditioner according to claim 3, characterized in that: The chip temperature reduction control method includes: When the re-measured chip temperature Td is lower than the third preset temperature Tc, the rotation speed of the cooling fan is increased and the operating frequency of the compressor is reduced.

5. The chip temperature reduction control method for air conditioner according to claim 1, characterized in that: When the chip temperature Td is lower than the first preset temperature Ta, the operating frequency of the compressor of the air conditioner is increased, and the current speed of the cooling fan is maintained.

6. The chip cooling control method for air conditioner according to claim 1, characterized in that: The chip temperature reduction control method further includes: When the external ambient temperature Tw is lower than the external ambient temperature threshold Tws, the initial rotation speed of the cooling fan is maintained.

7. The chip cooling control method for air conditioner according to claim 1, characterized in that: The speed of the cooling fan is increased by 50 r / min.

8. The chip cooling control method for air conditioner according to claim 1, characterized in that: The initial rotation speed is 1000-2000 r / min.

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