Chip cooling control method, device, air conditioner, and computer-readable storage medium

Abstract

This application provides a chip cooling control method, device, air conditioner, and computer-readable storage medium. The chip cooling control method is applicable to an air conditioner, which includes a reversing valve, an outdoor heat exchanger, an outdoor fan, an indoor fan, and a control chip. The reversing valve is connected to the outdoor heat exchanger, and the control chip is correspondingly arranged with the outdoor fan. An indoor fan is provided on the indoor unit side. The chip cooling control method includes: in response to the air conditioner being in a cooling operation mode, determining whether the temperature of the control chip is greater than or equal to a first stop temperature; in response to determining that the temperature of the control chip is greater than or equal to the first stop temperature, controlling the reversing valve to reverse and controlling the indoor fan to stop.

Description

Technical Field

[0001] This application relates to the field of air conditioner technology, specifically to a chip cooling control method, device, air conditioner, and computer-readable storage medium. Background Technology

[0002] Air conditioners are equipped with a control chip that controls the operation of various components. During operation, the temperature of the control chip continuously rises. When the temperature of the control chip becomes too high, it overheats and malfunctions, causing the air conditioner to suddenly stop operating. In severe cases, it can even damage other components of the air conditioner. Summary of the Invention

[0003] This application provides a chip cooling control method, device, air conditioner, and computer-readable storage medium, which can dissipate heat and cool the control chip when there is a risk of overheating, thereby ensuring the reliability of the air conditioner.

[0004] In a first aspect, embodiments of this application provide a chip cooling control method applicable to an air conditioner. The air conditioner includes a compressor, a reversing valve, an outdoor heat exchanger, an outdoor fan, an indoor fan, and a control chip. The reversing valve is connected to the outdoor heat exchanger, the control chip is correspondingly configured with the outdoor fan, and an indoor fan is provided on the indoor unit side. The chip cooling control method includes: in response to the air conditioner being in a cooling operation mode, determining whether the temperature of the control chip is greater than or equal to a first stop temperature; in response to determining that the temperature of the control chip is greater than or equal to the first stop temperature, controlling the reversing valve to reverse and controlling the indoor fan to stop.

[0005] In some embodiments, after controlling the reversing valve to switch, the chip cooling control method includes: after a preset cooling time has elapsed since the reversing valve switched, determining whether the temperature of the control chip is less than a first shutdown temperature; in response to determining that the temperature of the control chip is greater than or equal to the first shutdown temperature, controlling the compressor to shut down, and controlling the outdoor fan to run at maximum fan speed.

[0006] In some embodiments, after controlling the compressor to stop, the chip cooling control method includes: after a first preset shutdown time has elapsed since the compressor stopped, determining whether the temperature of the control chip is less than or equal to a second shutdown temperature; in response to determining that the temperature of the control chip is less than or equal to the second shutdown temperature, controlling the compressor to restart; in response to determining that the temperature of the control chip is greater than the second shutdown temperature, controlling the compressor to remain shut down; wherein the second shutdown temperature is less than the first shutdown temperature.

[0007] In some embodiments, after controlling the compressor to stop, the chip cooling control method includes: determining whether the temperature of the control chip is less than or equal to a second stop temperature after a second preset stop time has elapsed since the compressor stopped; in response to determining that the temperature of the control chip is greater than the second stop temperature, controlling the compressor to remain stopped, and controlling the air conditioner to display fault information on the indoor side; the second stop temperature is less than the first stop temperature.

[0008] In some embodiments, after controlling the reversing valve to switch, the chip cooling control method includes: controlling the compressor to reduce the frequency by a target frequency reduction margin every first frequency reduction time interval, and controlling the outdoor fan to continue running at the current fan speed or controlling the outdoor fan to increase the speed by a target speed increase margin every first speed increase time interval.

[0009] In some embodiments, before determining whether the temperature of the control chip is greater than or equal to a first shutdown temperature, the chip cooling control method includes: acquiring the internal temperature of the control chip; and determining the temperature of the control chip based on the internal temperature of the control chip and a preset calibration equation.

[0010] Secondly, this application provides a chip cooling control device applicable to an air conditioner. The air conditioner includes a compressor, a reversing valve, an outdoor heat exchanger, an outdoor fan, an indoor fan, and a control chip. The reversing valve is connected to the outdoor heat exchanger, and the control chip is correspondingly arranged with the outdoor fan. An indoor fan is provided on the indoor unit side. The chip cooling control device includes: a temperature comparison module configured to determine whether the temperature of the control chip is greater than or equal to a first stop temperature in response to the air conditioner being in a cooling operation mode; and a reversing control module configured to control the reversing valve to reverse and control the indoor fan to stop in response to determining that the temperature of the control chip is greater than or equal to the first stop temperature.

[0011] Thirdly, this application provides an air conditioner, including a compressor, a reversing valve, an outdoor heat exchanger, an outdoor fan, an indoor fan, and a control chip. The reversing valve is connected to the outdoor heat exchanger, the control chip is correspondingly arranged with the outdoor fan, and an indoor fan is provided on the indoor unit side. A memory stores a computer program, and a processor executes the computer program to implement the chip cooling control method provided in any of the above embodiments.

[0012] In some embodiments, the air conditioner includes a main control circuit board, the main control circuit board has a chip mounting area, the control chip is disposed on the main control circuit board, and the chip mounting area has multiple heat dissipation holes.

[0013] In some embodiments, the cross-sectional area of ​​the heat dissipation via increases from one end away from the control chip to the end near the control chip; the control chip is disposed on the side of the main control circuit board away from the outdoor fan.

[0014] In some embodiments, the air conditioner includes a spray device disposed between the outdoor fan and the control chip, the spray device being configured to atomize outdoor condensate.

[0015] Fourthly, embodiments of this application provide a computer-readable storage medium having a computer program stored thereon, the computer program being loaded by a processor to execute the steps in the chip cooling control method described above.

[0016] The chip cooling control method provided in this application embodiment can control the reversing valve to switch the air conditioner to heating mode when it is determined that there is a risk of overheating of the control chip. The outdoor heat exchanger is used to cool the surrounding air to form cold air, and then the outdoor fan blows the cold air formed at the outdoor heat exchanger to the control chip. The cooling capacity provided by the outdoor heat exchanger is effectively used to quickly cool the control chip, and no additional cooling structure is required for cooling the control chip, resulting in low application cost. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a flowchart of a chip cooling control method provided in some embodiments of this application;

[0019] Figure 2 This is a partial flowchart of a chip cooling control method provided in some embodiments of this application;

[0020] Figure 3 This is another partial flowchart of a chip cooling control method provided in some embodiments of this application;

[0021] Figure 4 This is another partial flowchart of a chip cooling control method provided in some embodiments of this application;

[0022] Figure 5 This is another partial flowchart of a chip cooling control method provided in some embodiments of this application;

[0023] Figure 6This is another partial flowchart of a chip cooling control method provided in some embodiments of this application;

[0024] Figure 7 This is another partial flowchart of a chip cooling control method provided in some embodiments of this application;

[0025] Figure 8 This is a connection structure diagram of an air conditioner provided in some embodiments of this application;

[0026] Figure 9 This is a partial cross-sectional view of an air conditioner provided in some embodiments of this application.

[0027] Explanation of key component symbols:

[0028] 1-Air conditioner, 10-Reversing valve, 20-Outdoor heat exchanger, 30-Outdoor fan, 40-Control chip, 50-Indoor fan, 60-Compressor, 70-Indoor heat exchanger, 80-Throttling device, 90-Main control circuit board, 91-Heat dissipation hole, 101-Spray device. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0032] The use of "applies to" or "configured to" in this application implies open and inclusive language, which does not exclude the applicability to or configuration to devices performing additional tasks or steps. Additionally, the use of "based on" implies openness and inclusivity, because processes, steps, calculations, or other actions "based on" one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0033] In this application, the term "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be made without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0034] like Figure 1 and Figure 8 As shown, in a first aspect, embodiments of this application provide a chip cooling control method applicable to an air conditioner 1. Here, the chip cooling control method includes steps S10 to S20, which can dissipate heat and cool the control chip 40 when there is a risk of overheating, thereby ensuring the reliability of the air conditioner 1.

[0035] Here, the air conditioner 1 includes a compressor 60, a reversing valve 10, an outdoor heat exchanger 20, an outdoor fan 30, an indoor fan 50, and a control chip 40. The reversing valve 10 is connected to the outdoor heat exchanger 20; the control chip 40 and the outdoor fan 30 are correspondingly arranged, and the outdoor fan 30 can force airflow through the outdoor heat exchanger 20 and the control chip 40. An indoor fan 50 is provided on the indoor unit side. The structure of the air conditioner 1 can be determined according to actual needs. It can adopt a split-type air conditioning structure, such as a wall-mounted air conditioner or a cabinet air conditioner, or an integrated air conditioning structure, such as a window air conditioner. When the air conditioner 1 adopts a split-type air conditioning structure, the outdoor heat exchanger 20, the outdoor fan 30, and the control chip 40 can be installed in the outdoor unit, and the indoor fan 50 can be installed in the indoor unit. When the air conditioner 1 adopts an integrated air conditioning structure, the outdoor heat exchanger 20, the outdoor fan 30, and the control chip 40 can be installed on the outdoor side of the air conditioner casing, and the indoor fan 50 can be installed on the indoor side of the air conditioner casing.

[0036] S10: In response to the air conditioner 1 being in cooling operation mode, determine whether the temperature of the control chip 40 is greater than or equal to the first shutdown temperature.

[0037] Here, the temperature of the control chip 40 can be directly measured by a temperature sensor, or it can be determined after calibration and calculation based on the temperature data measured by the temperature sensor. The first shutdown temperature can be preset in the control system of the air conditioner 1 to determine whether the temperature of the control chip 40 is too high.

[0038] S20: In response to determining that the temperature of the control chip 40 is greater than or equal to the first shutdown temperature, control the reversing valve 10 to reverse and control the indoor fan 50 to stop.

[0039] When it is determined that the temperature of the control chip 40 is lower than the first shutdown temperature, it can be determined that the control chip 40 does not have an overheating risk and is still within the safe operating temperature range.

[0040] When the temperature of the control chip 40 is determined to be greater than or equal to the first shutdown temperature, it can be determined that the control chip 40 is at risk of overheating and requires cooling control. At this time, the reversing valve 10 can be controlled to switch the air conditioner 1 to the heating mode, causing the outdoor heat exchanger 20 to absorb heat from the surrounding air to cool it and form cold air. The outdoor fan 30 then blows the cold air formed at the outdoor heat exchanger 20 onto the control chip 40, thereby effectively cooling the control chip 40 using the cooling capacity provided by the outdoor heat exchanger 20. During this process, the indoor fan 50 needs to be stopped to prevent the indoor fan 50 from blowing hot air into the room, thus avoiding discomfort for the indoor users.

[0041] Compared with related technologies, the chip cooling control method provided in this application embodiment can control the reversing valve 10 to switch when it is determined that the control chip 40 has an overheating risk, so as to quickly generate cold air and use the cold air to quickly cool down the control chip 40. Moreover, there is no need to set up an additional cooling structure for cooling the control chip 40, and the application cost is low.

[0042] like Figure 2 As shown, in some embodiments, after the control reversing valve 10 in S20 reverses, the chip cooling control method may include S31 to S32.

[0043] S31: After a preset cooling time has elapsed since the reversing valve 10 reversed, determine whether the temperature of the control chip 40 is lower than the first shutdown temperature.

[0044] Here, the preset cooling time can be pre-set in the control system of the air conditioner 1; the value of the preset cooling time can be determined according to actual needs, and can be different values ​​such as 1 minute, 2 minutes or 3 minutes, etc., which are not limited in this embodiment. After the reversing valve 10 reverses, the air conditioner 1 switches to the heating operation mode and runs in the heating operation mode until the preset cooling time is reached; when the running time reaches the preset cooling time, the temperature of the control chip 40 is compared with the first shutdown temperature to determine whether the temperature of the control chip 40 has dropped to a safe temperature range.

[0045] S32: In response to determining that the temperature of the control chip 40 is greater than or equal to the first shutdown temperature, the compressor 60 is shut down and the outdoor fan 30 is operated at the maximum fan speed.

[0046] When the temperature of the control chip 40 is determined to be greater than or equal to the first shutdown temperature, it can be determined that the aforementioned cooling process failed to reduce the temperature of the control chip 40 to a safe temperature range in a timely manner, and the air conditioner 1 faces a significant risk of malfunction shutdown and component damage. In this case, the compressor 60 can be shut down first to prevent structural damage caused by sudden compressor shutdown and to reduce the operating load and heat generation of the control chip 40, enabling it to cool down rapidly. Simultaneously, the outdoor fan 30 is controlled to operate at its maximum speed to blow the continuously generated cold air from the outdoor heat exchanger 20 towards the control chip 40 at maximum wind speed, thereby maximizing the utilization of the cooling capacity provided by the outdoor heat exchanger 20 to reduce the temperature of the control chip 40 as quickly as possible.

[0047] When it is determined that the temperature of the control chip 40 is lower than the first shutdown temperature, it can be confirmed that the aforementioned cooling process has timely reduced the temperature of the control chip 40 to a safe temperature range. At this point, the reversing valve 10 can be controlled to reverse again, so that the air conditioner 1 switches back to the cooling operation mode; or, the air conditioner 1 can be controlled to continue operating in the heating operation mode until the temperature of the control chip 40 further decreases to a lower temperature range, for example, below the second shutdown temperature, and then the reversing valve 10 can be controlled to reverse again, so that the air conditioner 1 switches back to the cooling operation mode.

[0048] Here, the second shutdown temperature is lower than the first shutdown temperature. The value of the first shutdown temperature can be determined according to actual needs, and this application embodiment does not limit it; for example, the first shutdown temperature can be taken from 85 to 95°C, such as 85°C, 87°C, 88°C, 90°C, 91°C, 92°C, 94°C, or 95°C. The value of the second shutdown temperature can be determined according to actual needs, and this application embodiment does not limit it; for example, the second shutdown temperature can be taken from 75 to 85°C, such as 75°C, 77°C, 78°C, 80°C, 81°C, 82°C, 84°C, or 85°C.

[0049] By setting S31 to S32, the chip cooling control method provided in this application embodiment can, when the cooling effect is insufficient, on the one hand, promptly control the compressor 60 to stop for overheat protection, avoid structural damage caused by the sudden stop of the compressor 60, and reduce the operating load and heat generation of the control chip 40, so that the control chip 40 can achieve rapid cooling as soon as possible; on the other hand, control the outdoor fan 30 to operate at the maximum fan speed, so as to make full use of the remaining cooling capacity provided by the outdoor heat exchanger 20 and enable the control chip 40 to achieve maximum cooling.

[0050] like Figure 3 As shown, in some examples, after S32, the chip cooling control method may include S33 to S35.

[0051] S33: After the first preset shutdown time has elapsed since the compressor 60 stopped, determine whether the temperature of the control chip 40 is less than or equal to the second shutdown temperature.

[0052] Here, the first preset shutdown duration can be pre-set in the control system of the air conditioner 1, which is the minimum duration for the compressor 60 to remain in the shutdown state after shutdown. Here, the second shutdown temperature is lower than the first shutdown temperature. After the compressor 60 has been shut down and remained in the shutdown state for the first preset shutdown duration, the temperature of the control chip 40 can be compared with the second shutdown temperature to determine whether the temperature of the control chip 40 has dropped to a temperature range within which the compressor 60 can be safely restarted.

[0053] S34: In response to determining that the temperature of the control chip 40 is less than or equal to the second shutdown temperature, control the compressor 60 to restart.

[0054] When the temperature of the control chip 40 is determined to be less than or equal to the second shutdown temperature, it can be determined whether the temperature of the control chip 40 has dropped to a temperature range within which the compressor 60 can be safely restarted. At this time, the compressor 60 can be restarted to restore the air conditioner 1 to its operating state, and the increased load on the control chip 40 due to the restart of the compressor 60 will not cause the control chip 40 to overheat. After the compressor 60 restarts, the reversing valve 10 can be reversed again to allow the air conditioner 1 to switch back to the cooling operation mode.

[0055] S35: In response to determining that the temperature of the control chip 40 is greater than the second shutdown temperature, the compressor 60 is kept shut down.

[0056] If the temperature of control chip 40 is determined to be higher than the second shutdown temperature, it can be determined whether the temperature of control chip 40 has not yet dropped to a temperature range within which compressor 60 can be safely restarted. At this time, it is necessary to keep compressor 60 shut down to avoid increasing the operating load on control chip 40, and wait for the temperature of control chip 40 to continue to drop.

[0057] By setting S33 to S35, the chip cooling control method provided in this application embodiment can promptly control the compressor 60 to restart after the overheating risk of the control chip 40 is eliminated, so that the air conditioner 1 can be restored to normal operation in a timely manner, avoiding user discomfort.

[0058] like Figure 4 or Figure 5 As shown, in some examples, after S32, the chip cooling control method may include S36 to S37.

[0059] S36: After the second preset shutdown time has elapsed since the compressor 60 stopped, determine whether the temperature of the control chip 40 is less than or equal to the second shutdown temperature.

[0060] Here, the second preset shutdown duration can be preset in the control system of the air conditioner 1; for example, the second preset shutdown duration can be the maximum shutdown duration that will not cause discomfort to indoor users. The value of the second preset shutdown duration can be determined according to actual needs, and this application embodiment does not limit it; for example, the second preset shutdown duration can be set to be greater than the first preset shutdown duration. Here, the second shutdown temperature is lower than the first shutdown temperature.

[0061] When the compressor 60 stops and remains in the stopped state for a period of time that reaches the second preset stop time, the temperature of the control chip 40 can be compared with the second stop temperature to determine whether the temperature of the control chip 40 is sufficient to be reduced to the temperature range within the second preset stop time that the compressor 60 can be safely restarted, so as to avoid causing obvious discomfort to indoor users.

[0062] S37: In response to determining that the temperature of the control chip 40 is greater than the second shutdown temperature, the compressor 60 is kept off, and the air conditioner 1 is controlled to display fault information on the indoor side.

[0063] If the temperature of the control chip 40 is determined to be higher than the second shutdown temperature, it can be determined that the temperature of the control chip 40 is insufficient to decrease to a temperature range within which the compressor 60 can be safely restarted within the second preset shutdown duration, and the air conditioner 1 is insufficient to return to normal operation within the second preset shutdown duration. At this time, it is necessary to control the compressor 60 to remain shut down and control the air conditioner 1 to display fault information on the indoor side, so as to promptly inform the user that the air conditioner 1 has experienced an overheat protection shutdown fault.

[0064] When the temperature of the control chip 40 is determined to be less than or equal to the second shutdown temperature, it can be determined that the temperature of the control chip 40 has decreased to a temperature range within which the compressor 60 can be safely restarted within the second preset shutdown time. The air conditioner 1 can then return to normal operation within the second preset shutdown time. At this point, the compressor 60 can be safely restarted to allow the air conditioner 1 to return to normal operation as quickly as possible, improving the comfort of indoor users.

[0065] like Figure 4 As shown, in some examples, S36 to S37 can be executed after S32. For example... Figure 5 As shown, in some other examples, S36 to S37 can be executed after S35.

[0066] By setting S36 to S37, the chip cooling control method provided in this application embodiment can control the compressor 60 to remain off when the air conditioner 1 is insufficient to return to normal operation in time, and control the air conditioner 1 to display fault information on the indoor side in time, so as to remind the user that the air conditioner 1 has experienced an overheat protection shutdown fault.

[0067] like Figure 6 As shown, in some embodiments, after S20, the chip cooling control method may include S38.

[0068] S38: Control the compressor 60 to reduce the frequency by the target frequency reduction margin every first frequency reduction time interval, and control the outdoor fan 30 to continue running at the current wind speed or control the outdoor fan 30 to increase the speed by the target speed increase margin every first speed increase time interval.

[0069] Here, the first frequency reduction time interval and the target frequency reduction amplitude can be preset in the control system of the air conditioner 1, or they can be calculated and determined according to the actual operating conditions. This application embodiment does not limit this. The values ​​of the first frequency reduction time interval and the target frequency reduction amplitude can be determined according to actual needs. This application embodiment does not limit this. The target frequency reduction amplitude can be a frequency value or a proportional value. This application embodiment does not limit this.

[0070] After the reversing valve 10 is switched, the frequency of the compressor 60 can be controlled to decrease by the target frequency reduction amount every first frequency reduction time interval until the frequency of the compressor 60 drops to the lower limit of the compressor 60 frequency, or until the compressor 60 stops. For example, the frequency of the compressor 60 can be controlled to decrease by 8Hz every 90s until the frequency of the compressor 60 drops to the lower limit of the compressor 60 frequency, or until the compressor 60 stops. In this way, the frequency of the compressor 60 gradually decreases, which on the one hand gradually reduces the operating load of the control chip 40 so that the control chip 40 can cool down as soon as possible; on the other hand, it can prevent the temperature in the indoor side of the air conditioner 1 from rising rapidly, thereby avoiding discomfort to the indoor users.

[0071] Here, the first acceleration time interval and the target acceleration amplitude can be preset in the control system of the air conditioner 1, or they can be calculated and determined according to the actual operating conditions. This embodiment of the application does not limit this. The values ​​of the first acceleration time interval and the target acceleration amplitude can be determined according to actual needs. This embodiment of the application does not limit this. The target acceleration amplitude can be a speed value, a gear value, or a proportional value. This embodiment of the application does not limit this. The first acceleration time interval and the first frequency reduction time interval can be the same or different values. This embodiment of the application does not limit this.

[0072] After the reversing valve 10 is switched, in addition to controlling the frequency of the compressor 60 to decrease by the target frequency reduction margin every first frequency reduction time interval, the outdoor fan 30 can be controlled to continue running at the current fan speed. This ensures the convective cooling effect on the control chip 40 while avoiding increasing the operating load on the control chip 40. Alternatively, the outdoor fan 30 can be controlled to increase its speed by the target speed increase margin every first speed increase time interval until the fan speed or rotation speed of the outdoor fan 30 reaches its upper limit, gradually improving the convective cooling effect on the control chip 40. For example, the fan speed or rotation speed of the outdoor fan 30 can be controlled to increase by one level or 30 rpm every 90s or 120s until the fan speed or rotation speed of the outdoor fan 30 reaches its upper limit.

[0073] like Figure 7 As shown, in some embodiments, before S10, the chip cooling control method may include S01 to S02.

[0074] S01: Obtain the internal temperature of the control chip 40. Here, the internal temperature of the control chip 40 can be obtained by a temperature sensor integrated inside the control chip 40, without the need for an additional temperature sensor to measure the temperature of the control chip 40.

[0075] S02: Determine the temperature of the control chip 40 based on its internal temperature and the preset calibration equation.

[0076] Here, the preset calibration equation can be pre-set in the control system of the air conditioner 1. The preset calibration equation uses the internal temperature of the control chip 40 as the input value and the actual temperature of the control chip 40 as the output value, and can be pre-determined based on calibration experiments. The specific expression of the preset calibration equation can be determined according to actual needs, and this embodiment does not limit it. After obtaining the internal temperature of the control chip 40, the internal temperature of the control chip 40 can be input into the preset calibration equation to obtain the actual temperature of the control chip 40, which is used as the temperature of the control chip 40 in the above control steps.

[0077] Secondly, this application provides a chip cooling control device applicable to the aforementioned air conditioner 1. The chip cooling control device includes: a temperature comparison module configured to determine whether the temperature of the control chip 40 is greater than or equal to a first shutdown temperature in response to the air conditioner 1 being in cooling operation mode; and a reversing control module configured to control the reversing valve 10 to reverse and control the indoor fan 50 to stop in response to determining whether the temperature of the control chip 40 is greater than or equal to the first shutdown temperature.

[0078] Thirdly, this application provides an air conditioner 1, including a compressor 60, a reversing valve 10, an outdoor heat exchanger 20, an outdoor fan 30, an indoor fan 50, and a control chip 40. The reversing valve 10 is connected to the outdoor heat exchanger 20, the control chip 40 is correspondingly arranged with the outdoor fan 30, and an indoor fan 50 is provided on the indoor unit side. A memory stores a computer program, which, when executed by a processor, implements the chip cooling control method as provided in any of the above embodiments.

[0079] The processor is connected to the memory and can perform various actions and processes according to the programs stored in the memory. Specifically, the processor can be an integrated circuit chip with signal processing capabilities. The aforementioned processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components, capable of implementing or executing the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor, and can be based on an x86 architecture or an ARM architecture.

[0080] The memory can be volatile or non-volatile, or may include both. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM) used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct memory bus random access memory (DRRAM). It should be noted that the memory used in the methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0081] The structure of air conditioner 1 can be determined according to actual needs. It can adopt a split air conditioning structure, such as a wall-mounted air conditioner or a cabinet air conditioner, or an integrated air conditioning structure, such as a window air conditioner. When air conditioner 1 adopts a split air conditioning structure, the outdoor heat exchanger 20, the outdoor fan 30, and the control chip 40 can be installed in the outdoor unit, and the indoor fan 50 can be installed in the indoor unit. When air conditioner 1 adopts an integrated air conditioning structure, the outdoor heat exchanger 20, the outdoor fan 30, and the control chip 40 can be installed on the outdoor side of the air conditioner casing, and the indoor fan 50 can be installed on the indoor side of the air conditioner casing.

[0082] In some embodiments, the air conditioner 1 may include a main control circuit board 90. The main control circuit board 90 has a chip mounting area, and a control chip 40 is disposed on the main control circuit board 90. The chip mounting area has multiple heat dissipation holes 91. Thus, the control chip 40 covers the multiple heat dissipation holes 91. When the outdoor fan 30 blows the cold air generated at the outdoor heat exchanger 20 towards the control chip 40, the cold air can pass through the multiple heat dissipation holes 91 to achieve convection, quickly absorbing heat from the control chip 40 and the main control circuit board 90. After absorbing heat, the air quickly leaves the area where the main control circuit board 90 and the control chip 40 are located, thereby quickly achieving the purpose of cooling.

[0083] The shape of the heat dissipation through-hole 91 can be determined according to actual needs, and this application embodiment does not limit it. In some examples, the flow cross-sectional area of ​​the heat dissipation through-hole 91 increases from the end away from the control chip 40 to the end closer to the control chip 40; for example, the heat dissipation through-hole 91 can be a tapered hole with a trapezoidal axial cross-sectional shape, and the flow cross-sectional area of ​​the tapered hole increases from the end away from the control chip 40 to the end closer to the control chip 40. As the flow cross-sectional area of ​​the heat dissipation through-hole 91 gradually increases, the heat and flow rate of the cold air gradually decrease when it passes through the heat dissipation through-hole 91 and approaches the control chip 40. The heat exchange area and heat exchange time of the cold air and the control chip 40 / main control circuit board 90 gradually increase, which can achieve rapid heat dissipation of the control chip 40 and the main control circuit board 90.

[0084] In some embodiments, the air conditioner 1 may include a spray device 101. The spray device 101 is disposed between the outdoor fan 30 and the control chip 40, and is configured to atomize outdoor condensate. By atomizing the outdoor condensate into tiny water droplets using the spray device 101, the forced convection of the outdoor fan 30 allows these tiny water droplets to quickly pass through the area where the control chip 40 is located. This not only utilizes the cooling capacity of the tiny water droplets to further enhance the cooling effect on the control chip 40, but also prevents the tiny water droplets from condensing on the control chip 40, ensuring the safety of the control chip 40.

[0085] Fourthly, embodiments of this application provide a computer-readable storage medium having a computer program stored thereon, the computer program being loaded by a processor to execute the steps in the control method of any of the above embodiments.

[0086] For example, the aforementioned computer-readable storage media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks, or magnetic tapes), optical discs (e.g., CDs (Compact Disks), DVDs (Digital Versatile Disks), etc.), smart cards, and flash memory devices (e.g., EPROMs (Erasable Programmable Read-Only Memory), cards, sticks, or key drives, etc.). The various computer-readable storage media described in the embodiments of this application may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0087] The above provides a detailed description of a chip cooling control method, apparatus, air conditioner, and computer-readable storage medium provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A chip cooling control method, characterized in that, Applicable to an air conditioner, the air conditioner includes a compressor, a reversing valve, an outdoor heat exchanger, an outdoor fan, an indoor fan, and a control chip. The reversing valve is connected to the outdoor heat exchanger, the control chip is correspondingly configured with the outdoor fan, and the indoor fan is provided on the indoor unit side. The chip-based cooling control method includes: In response to the air conditioner being in cooling operation mode, determine whether the temperature of the control chip is greater than or equal to the first shutdown temperature; In response to determining that the temperature of the control chip is greater than or equal to the first shutdown temperature, the reversing valve is controlled to reverse, and the indoor fan is controlled to stop. After controlling the reversing valve to switch, the chip cooling control method includes: The compressor is controlled to reduce its frequency by a target reduction margin every first frequency reduction time interval, and the outdoor fan is controlled to continue operating at the current wind speed or to increase its speed by a target increase margin every first speed increase time interval.

2. The chip cooling control method according to claim 1, characterized in that, After controlling the reversing valve to switch, the chip cooling control method includes: After a preset cooling time has elapsed since the reversing valve reversed, determine whether the temperature of the control chip is lower than the first shutdown temperature; In response to determining that the temperature of the control chip is greater than or equal to the first shutdown temperature, the compressor is controlled to stop and the outdoor fan is controlled to operate at the maximum fan speed.

3. The chip cooling control method according to claim 2, characterized in that, After controlling the compressor to stop, the chip cooling control method includes: After a first preset shutdown time has elapsed since the compressor stopped, determine whether the temperature of the control chip is less than or equal to the second shutdown temperature; In response to determining that the temperature of the control chip is less than or equal to the second shutdown temperature, the compressor is controlled to restart; In response to determining that the temperature of the control chip is greater than the second shutdown temperature, the compressor is controlled to remain shut down. The second shutdown temperature is lower than the first shutdown temperature.

4. The chip cooling control method according to claim 2, characterized in that, After controlling the compressor to stop, the chip cooling control method includes: When the compressor stops, after a second preset shutdown time has elapsed, determine whether the temperature of the control chip is less than or equal to the second shutdown temperature; In response to determining that the temperature of the control chip is greater than the second shutdown temperature, the compressor is kept off, and the air conditioner is controlled to display fault information on the indoor side; The second shutdown temperature is lower than the first shutdown temperature.

5. The chip cooling control method according to claim 1, characterized in that, Before determining whether the temperature of the control chip is greater than or equal to the first shutdown temperature, the chip cooling control method includes: Obtain the internal temperature of the control chip; The temperature of the control chip is determined based on its internal temperature and a preset calibration equation.

6. A chip cooling control device, characterized in that, Applicable to air conditioners, the air conditioner includes a compressor, a reversing valve, an outdoor heat exchanger, an outdoor fan, an indoor fan, and a control chip. The reversing valve is connected to the outdoor heat exchanger, the control chip is correspondingly arranged with the outdoor fan, and the indoor fan is provided on the indoor unit side. The chip cooling control device includes: The temperature comparison module is configured to determine whether the temperature of the control chip is greater than or equal to the first shutdown temperature in response to the air conditioner being in cooling operation mode; The reversing control module is configured to, in response to determining that the temperature of the control chip is greater than or equal to a first shutdown temperature, control the reversing valve to reverse and control the indoor fan to stop; after controlling the reversing valve to reverse, control the compressor to reduce its frequency by a target reduction margin every first reduction time interval, and control the outdoor fan to continue running at the current fan speed or control the outdoor fan to increase its speed by a target increase margin every first increase time interval.

7. An air conditioner, characterized in that, include: The unit includes a compressor, a reversing valve, an outdoor heat exchanger, an outdoor fan, an indoor fan, and a control chip. The reversing valve is connected to the outdoor heat exchanger, the control chip is correspondingly set to the outdoor fan, and the indoor fan is provided on the indoor unit side. Memory, which stores computer programs; A processor, wherein the computer program, when executed by the processor, implements the chip cooling control method as described in any one of claims 1 to 5.

8. The air conditioner according to claim 7, characterized in that, The air conditioner includes a main control circuit board, on which a chip mounting area is provided, and the control chip is disposed on the main control circuit board. The chip mounting area is provided with multiple heat dissipation holes.

9. The air conditioner according to claim 8, characterized in that, Along the direction from the end of the heat dissipation hole away from the control chip to the end closer to the control chip, the cross-sectional area of ​​the heat dissipation hole increases progressively; the control chip is located on the side of the main control circuit board away from the outdoor fan.

10. The air conditioner according to claim 7, characterized in that, The air conditioner includes a spray device disposed between the outdoor fan and the control chip, and the spray device is configured to atomize the outdoor condensate.

11. A computer-readable storage medium, characterized in that, It stores a computer program, which is loaded by a processor to execute the steps of the chip cooling control method according to any one of claims 1 to 5.

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