Air conditioner and heating method, device, equipment and computer readable medium thereof

Abstract

The application relates to an air conditioner and a heating method, device and equipment thereof and a computer readable medium. The method comprises the following steps: when the air conditioner is in heating operation, it is determined whether an intelligent power module is operated within a safe temperature range; when the intelligent power module is operated within the safe temperature range, a first current limit value of the air conditioner and an outdoor environment temperature are obtained, wherein the first current limit value is a current protection current value preset for the air conditioner under the condition that the outdoor environment temperature is greater than or equal to a first temperature and the air conditioner is in refrigeration operation; the first current limit value is adjusted according to the outdoor environment temperature value, and a second current limit value is obtained; and the second current limit value is taken as a current protection current value of the air conditioner under the current outdoor environment temperature and used for controlling the air conditioner in heating operation. The application solves the technical problem that the unit is prone to current value frequency limiting under low-temperature and ultralow-temperature heating conditions, leading to insufficient heat exchange capacity.

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to an air conditioner and its heating method, apparatus, equipment and computer-readable medium. Background Technology

[0002] Air conditioners are an essential appliance in public places such as restaurants, office buildings, shops, and business halls, as well as in daily life, and their comfort is receiving increasing attention. Comfort is inseparable from the unit's heat exchange capacity. Currently developed models use AC current protection to ensure reliable operation. This is typically achieved by setting the overcurrent value based on harsh high-temperature cooling conditions, ensuring the surface temperature rise of the mainboard components remains within a safe range. However, this limitation does not differentiate between cooling and heating. Especially under low-temperature and ultra-low-temperature heating conditions, the compressor's operating frequency rises rapidly due to the harsh outdoor temperature, increasing the current value. The unit is easily limited by the AC current value, resulting in insufficient heat exchange capacity. In reality, when the unit operates freely in low-temperature and ultra-low-temperature heating, the outdoor unit's mainboard components dissipate heat well, and the unit's temperature rises slowly during the compressor's frequency increase. Current limitation occurs first, thus the unit's heating capacity cannot be maximized, affecting user comfort.

[0003] There is currently no effective solution to the problem that units are prone to insufficient heat exchange capacity due to frequency limitation caused by AC current value under low temperature and ultra-low temperature heating conditions. Summary of the Invention

[0004] This application provides an air conditioner and its heating method, apparatus, equipment and computer-readable medium to solve the technical problem that the unit is prone to insufficient heat exchange capacity due to frequency limitation of AC current value under low temperature and ultra-low temperature heating conditions.

[0005] According to one aspect of the embodiments of this application, this application provides a heating method for an air conditioner, comprising: when the air conditioner is in heating mode, determining whether an intelligent power module is operating within a safe temperature range; when the intelligent power module is operating within the safe temperature range, acquiring a first current limit value of the air conditioner and an outdoor ambient temperature, wherein the first current limit value is an overcurrent protection current value pre-set for the air conditioner to operate in cooling mode under conditions where the outdoor ambient temperature is greater than or equal to a first temperature; adjusting the first current limit value according to the outdoor ambient temperature value to obtain a second current limit value; and using the second current limit value as the overcurrent protection current value for the air conditioner to operate in heating mode at the current outdoor ambient temperature to control the heating operation of the air conditioner.

[0006] Optionally, determining whether the intelligent power module is operating within a safe temperature range includes: obtaining a first maximum safe temperature of the intelligent power module under standard operating conditions, a correction value corresponding to the intelligent power module at the current outdoor ambient temperature, and the current module temperature of the intelligent power module; calculating a second maximum safe temperature of the intelligent power module at the current outdoor ambient temperature based on the correction value of the first maximum safe temperature; if the module temperature is less than or equal to the second maximum safe temperature, then determining that the intelligent power module is operating within the safe temperature range; if the module temperature is greater than the second maximum safe temperature, then determining that the intelligent power module is not operating within the safe temperature range.

[0007] Optionally, adjusting the first current limit based on the outdoor ambient temperature value to obtain the second current limit includes: when the outdoor ambient temperature is greater than or equal to a second temperature, using the first current limit as the second current limit, where the second temperature is less than the first temperature; when the outdoor ambient temperature is less than the second temperature but greater than or equal to a third temperature, multiplying the first current limit by a first correction coefficient to obtain the second current limit; when the outdoor ambient temperature is less than the third temperature but greater than or equal to a fourth temperature, multiplying the first current limit by a second correction coefficient to obtain the second current limit; when the outdoor ambient temperature is less than the fourth temperature but greater than or equal to a fifth temperature, multiplying the first current limit by a third correction coefficient to obtain the second current limit; and when the outdoor ambient temperature is less than the fifth temperature but greater than or equal to a sixth temperature, multiplying the first current limit by a fourth correction coefficient to obtain the second current limit.

[0008] Optionally, after using the second current limit as the overcurrent protection current value for the air conditioner to operate in heating mode at the current outdoor ambient temperature to control the air conditioner's heating operation, the method further includes: obtaining the initial operating frequency of the air conditioner at the current outdoor ambient temperature; determining a correction value for the initial operating frequency based on the outdoor ambient temperature; adjusting the initial operating frequency based on the correction value to obtain a target operating frequency; and controlling the air conditioner to operate at the target operating frequency.

[0009] Optionally, adjusting the initial operating frequency according to the correction value to obtain the target operating frequency includes: when the outdoor ambient temperature is greater than or equal to a second temperature, using a first initial operating frequency as the target operating frequency; when the outdoor ambient temperature is less than the second temperature but greater than or equal to a third temperature, using the sum of a second initial operating frequency and a first correction value as the target operating frequency; when the outdoor ambient temperature is less than the third temperature but greater than or equal to a fourth temperature, using the sum of a third initial operating frequency and a second correction value as the target operating frequency; when the outdoor ambient temperature is less than the fourth temperature but greater than or equal to a fifth temperature, using the sum of a fourth initial operating frequency and a third correction value as the target operating frequency; and when the outdoor ambient temperature is less than the fifth temperature but greater than or equal to a sixth temperature, using the sum of a fifth initial operating frequency and a fourth correction value as the target operating frequency.

[0010] Optionally, the method further includes: obtaining the pipe temperature of the outdoor evaporator pipe; determining whether to enter the defrosting state based on the pipe temperature of the outdoor evaporator pipe; if entering the defrosting state, adjusting the first current limit value according to the preset defrosting configuration to obtain a third current limit value; and using the third current limit value as the overcurrent protection current value for the air conditioner to operate in heating mode during defrosting to control the air conditioner's heating operation.

[0011] According to another aspect of the embodiments of this application, this application provides a heating device for an air conditioner, comprising: a determining module, configured to determine whether an intelligent power module is operating within a safe temperature range when the air conditioner is in heating mode; an acquiring module, configured to acquire a first current limit value of the air conditioner and an outdoor ambient temperature when the intelligent power module is operating within the safe temperature range, wherein the first current limit value is an overcurrent protection current value pre-set for the air conditioner to operate in cooling mode under conditions where the outdoor ambient temperature is greater than or equal to a first temperature; an adjusting module, configured to adjust the first current limit value according to the outdoor ambient temperature value to obtain a second current limit value; and a controlling module, configured to control the air conditioner to operate in heating mode by using the second current limit value as the overcurrent protection current value of the air conditioner for heating mode operation at the current outdoor ambient temperature.

[0012] According to another aspect of the embodiments of this application, this application provides an air conditioner, including an indoor unit and an outdoor unit. The indoor unit includes an indoor fan, an indoor fan component, an indoor unit control board, and an indoor unit heat exchanger. The outdoor unit includes an outdoor fan, an outdoor fan component, an outdoor unit control board, a compressor, a condenser, a four-way valve, and a throttling element. When the air conditioner is in heating mode, it performs any of the above-described air conditioner heating methods.

[0013] According to another aspect of the embodiments of this application, this application provides an electronic device, including a memory, a processor, a communication interface and a communication bus. The memory stores a computer program that can run on the processor. The memory and the processor communicate with each other through the communication bus and the communication interface. When the processor executes the computer program, it implements the steps of the above method.

[0014] According to another aspect of the embodiments of this application, this application also provides a computer-readable medium having processor-executable non-volatile program code that causes the processor to perform the above-described method.

[0015] Compared with related technologies, the technical solutions provided in this application have the following advantages:

[0016] This application provides a heating method for an air conditioner, comprising: when the air conditioner is in heating mode, determining whether an intelligent power module is operating within a safe temperature range; when the intelligent power module is operating within the safe temperature range, acquiring a first current limit value of the air conditioner and an outdoor ambient temperature, wherein the first current limit value is an overcurrent protection current value preset for the air conditioner to operate in cooling mode when the outdoor ambient temperature is greater than or equal to a first temperature; adjusting the first current limit value according to the outdoor ambient temperature value to obtain a second current limit value; and using the second current limit value as the overcurrent protection current value for the air conditioner to operate in heating mode at the current outdoor ambient temperature to control the air conditioner's heating operation. This application reasonably corrects the preset AC current overcurrent protection limit value of the air conditioner based on the temperature of the intelligent power module and the outdoor ambient temperature, avoiding insufficient heat exchange capacity, improving heating capacity, ensuring the heating effect of the air conditioner, improving indoor temperature comfort, and solving the technical problem that the unit is prone to insufficient heat exchange capacity due to AC current frequency limitation under low and ultra-low temperature heating conditions. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of an optional air conditioner heating method according to an embodiment of this application;

[0020] Figure 2This is a schematic diagram of an optional overall heating process according to an embodiment of this application;

[0021] Figure 3 This is a block diagram of an optional heating device for an air conditioner according to an embodiment of this application;

[0022] Figure 4 This is a schematic diagram of an optional air conditioner according to an embodiment of this application;

[0023] Figure 5 This is a schematic diagram of an optional electronic device structure provided in an embodiment of this application. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, 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, 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.

[0025] In the following description, the use of suffixes such as "module," "part," or "unit" to denote elements is solely for the purpose of illustration and has no specific meaning in itself. Therefore, "module" and "part" may be used interchangeably.

[0026] To address the problems mentioned in the background art, according to one aspect of the embodiments of this application, an embodiment of a heating method for an air conditioner is provided. For example... Figure 1 As shown, the method may include the following steps:

[0027] Step S102: When the air conditioner is in heating mode, determine whether the intelligent power module is operating within a safe temperature range;

[0028] Step S104: When the intelligent power module is operating within the safe temperature range, the first current limit of the air conditioner and the outdoor ambient temperature are obtained, wherein the first current limit is an overcurrent protection current value pre-set for the air conditioner to operate in cooling mode under the condition that the outdoor ambient temperature is greater than or equal to the first temperature.

[0029] Step S106: Adjust the first current limit value according to the outdoor ambient temperature value to obtain the second current limit value;

[0030] Step S108: Use the second current limit as the overcurrent protection current value for the air conditioner to operate in heating mode at the current outdoor ambient temperature to control the air conditioner's heating operation.

[0031] Through the above steps S102 to S108, this application reasonably corrects the overcurrent protection limit of the AC current preset by the air conditioner based on the temperature of the intelligent power module and the outdoor ambient temperature, so as to avoid insufficient heat exchange capacity, improve heating capacity, ensure the heating effect of the air conditioner, improve the comfort of the indoor temperature, and solve the technical problem that the unit is prone to insufficient heat exchange capacity due to frequency limitation of AC current value under low temperature and ultra-low temperature heating conditions.

[0032] The technical solution of this application can be applied to the heating control of air conditioners, especially to the heating control of air conditioners in low and ultra-low temperature environments. In the embodiments of this application, low temperature can refer to 0 to 7 degrees Celsius, and ultra-low temperature can refer to the temperature range below 0 degrees Celsius. The following is in conjunction with... Figure 2 The complete heating process shown will be used to provide a detailed explanation of the technical solution of this application.

[0033] In step S102, determining whether the intelligent power module (IPM module) is operating within a safe temperature range aims to detect whether the intelligent power module is damaged. Under normal circumstances, the temperature of the IPM module should be less than 80 degrees Celsius when the ambient temperature is below 35 degrees Celsius, and the maximum temperature should not exceed 95 degrees Celsius. This is to ensure that the IPM module does not experience performance degradation or damage under normal operating conditions.

[0034] In an optional embodiment, determining whether the smart power module is operating within a safe temperature range includes:

[0035] Step 1: Obtain the first maximum safe temperature of the intelligent power module under standard operating conditions, the correction value of the intelligent power module under the current outdoor ambient temperature, and the current module temperature of the intelligent power module.

[0036] In the embodiments of this application, such as Figure 2 As shown, the first maximum safe temperature T is the highest temperature at which the intelligent power module can safely operate under standard operating conditions. The correction value ΔT is a value adjusted according to the outdoor ambient temperature and is used to calculate the maximum safe temperature of the intelligent power module under the current outdoor ambient temperature. The current module temperature is the current actual operating temperature of the intelligent power module.

[0037] Step 2: Calculate the second maximum safe temperature of the smart power module under the current outdoor ambient temperature based on the correction value of the first maximum safe temperature.

[0038] In the embodiments of this application, such as Figure 2 As shown, the second maximum safe temperature is the highest temperature at which the intelligent power module can operate safely under the current outdoor ambient temperature, i.e., Tset - ΔT.

[0039] Step 3: If the module temperature is less than or equal to the second maximum safe temperature, then the smart power module is determined to be operating within the safe temperature range; if the module temperature is greater than the second maximum safe temperature, then the smart power module is determined to be not operating within the safe temperature range.

[0040] In this embodiment, if the module temperature is less than or equal to the second maximum safe temperature, it can be determined that the intelligent power module is operating within a safe temperature range and its operating temperature is safe. If the module temperature is greater than the second maximum safe temperature, it can be determined that the intelligent power module is not operating within a safe temperature range, and its operating temperature exceeds the safe limit, which may lead to equipment damage or performance degradation. In this case, some measures need to be taken to reduce the operating temperature of the intelligent power module, such as adding heat dissipation devices or reducing the workload.

[0041] In step S102, the first current limit is an overcurrent protection current value preset for the air conditioner to operate in cooling mode when the outdoor ambient temperature is greater than or equal to a first temperature. The condition of being greater than or equal to the first temperature refers to severe high-temperature conditions, such as 35 degrees Celsius and above. Currently, air conditioners all use AC current protection function to ensure the reliable operation of the unit. Usually, its overcurrent current value is set according to severe high-temperature cooling conditions, which can ensure that the surface temperature rise of the main board components is within a safe range. However, this limitation does not distinguish between cooling and heating. Especially under low-temperature and ultra-low-temperature heating conditions, the compressor operating frequency rises rapidly due to the severe outdoor ambient temperature, and the current value increases. The unit is easily limited by the AC current value, resulting in insufficient heat exchange capacity. Therefore, this application appropriately adjusts the limit value of the AC circuit according to the outdoor ambient temperature to ensure sufficient heat exchange capacity.

[0042] In an optional embodiment, adjusting the first current limit based on the outdoor ambient temperature value to obtain the second current limit includes:

[0043] When the outdoor ambient temperature is greater than or equal to the second temperature, the first current limit is used as the second current limit, and the second temperature is less than the first temperature;

[0044] When the outdoor ambient temperature is lower than the second temperature and greater than or equal to the third temperature, the first current limit is multiplied by the first correction factor to obtain the second current limit.

[0045] When the outdoor ambient temperature is less than the third temperature and greater than or equal to the fourth temperature, the first current limit is multiplied by the second correction coefficient to obtain the second current limit.

[0046] When the outdoor ambient temperature is less than the fourth temperature and greater than or equal to the fifth temperature, the first current limit is multiplied by the third correction factor to obtain the second current limit.

[0047] When the outdoor ambient temperature is less than the fifth temperature and greater than or equal to the sixth temperature, the first current limit is multiplied by the fourth correction factor to obtain the second current limit.

[0048] In the embodiments of this application, such as Figure 2 As shown, the second temperature T0, the third temperature T1, the fourth temperature T2, the fifth temperature T3, and the sixth temperature T4 can be 7 degrees Celsius, 2 degrees Celsius, 0 degrees Celsius, -7 degrees Celsius, and -15 degrees Celsius, respectively. The first correction coefficient K1, the second correction coefficient K2, the third correction coefficient K3, and the fourth correction coefficient K4 can be 1.05, 1.1, 1.2, and 1.3, respectively. It can be seen that when the outdoor ambient temperature is greater than 7 degrees Celsius, there is no need to modify the first current limit value, while the lower the temperature, the greater the modification. The specific temperature division and correction coefficient settings can be set according to actual needs. Here, I is set to the first current limit value, which is specifically the overcurrent protection current value of the AC current (alternating current) when the air conditioner is operating in cooling mode under conditions where the outdoor ambient temperature is greater than or equal to the first temperature.

[0049] In an optional embodiment, after controlling the air conditioner's heating operation by using the second current limit as the overcurrent protection current value for the air conditioner under the current outdoor ambient temperature, the method further includes:

[0050] Step 1: Obtain the initial operating frequency of the air conditioner at the current outdoor ambient temperature;

[0051] Step 2: Determine the correction value for the initial operating frequency based on the outdoor ambient temperature;

[0052] Step 3: Adjust the initial operating frequency according to the correction value to obtain the target operating frequency;

[0053] Step 4: Control the air conditioner to operate at the target operating frequency.

[0054] In this embodiment, after adjusting the AC current limit, to further enhance the internal heat exchange capacity, the compressor's operating frequency can be appropriately adjusted according to the outdoor ambient temperature. Specifically, adjusting the initial operating frequency according to the correction value to obtain the target operating frequency includes:

[0055] When the outdoor ambient temperature is greater than or equal to the second temperature, the first initial operating frequency is taken as the target operating frequency;

[0056] When the outdoor ambient temperature is lower than the second temperature and greater than or equal to the third temperature, the sum of the second initial operating frequency and the first correction value is taken as the target operating frequency.

[0057] When the outdoor ambient temperature is less than the third temperature and greater than or equal to the fourth temperature, the sum of the third initial operating frequency and the second correction value is taken as the target operating frequency.

[0058] When the outdoor ambient temperature is less than the fourth temperature and greater than or equal to the fifth temperature, the sum of the fourth initial operating frequency and the third correction value is taken as the target operating frequency.

[0059] When the outdoor ambient temperature is less than the fifth temperature and greater than or equal to the sixth temperature, the sum of the fifth initial operating frequency and the fourth correction value is taken as the target operating frequency.

[0060] In the embodiments of this application, such as Figure 2 As shown, when the outdoor ambient temperature is greater than 7 degrees Celsius, there is no need to correct the compressor's first initial operating frequency f0. When the outdoor ambient temperature is less than 7 degrees Celsius but greater than or equal to 2 degrees Celsius, the corrected target operating frequency is f1 (the second initial operating frequency corresponding to the current temperature range) + ΔF1 (the first correction value). Similarly, when the outdoor ambient temperature is less than 2 degrees Celsius but greater than or equal to 0 degrees Celsius, the corrected target operating frequency is f2 + ΔF2. When the outdoor ambient temperature is less than 0 degrees Celsius but greater than or equal to -7 degrees Celsius, the corrected target operating frequency is f3 + ΔF3. When the outdoor ambient temperature is less than -7 degrees Celsius but greater than or equal to -15 degrees Celsius, the corrected target operating frequency is f4 + ΔF4. Among them, f0<f1<f2<f3<f4 can be 70Hz, 90Hz, 100Hz, 105Hz, 110Hz, △F1>△F2>△F3>△F4>0, and the frequency can be increased to 8Hz, 6Hz, 4Hz, 2Hz.

[0061] In an optional embodiment, the method further includes:

[0062] Step 1: Obtain the pipe temperature of the outdoor evaporator side pipe;

[0063] Step 2: Determine whether to enter the defrosting state based on the pipe temperature of the outdoor evaporator side pipe;

[0064] Step 3: If defrosting mode is entered, adjust the first current limit according to the preset defrosting configuration to obtain the third current limit;

[0065] Step 4: Use the third current limit as the overcurrent protection current value for the air conditioner in defrosting mode when it is in heating mode to control the air conditioner's heating operation.

[0066] In this embodiment, the outdoor evaporator pipe refers to the copper pipe used for heat exchange in the outdoor unit of an air conditioner. It is typically installed in the outdoor environment to exchange heat with the indoor unit, thereby absorbing or releasing heat. In an air conditioning system, the outdoor evaporator pipe usually works in conjunction with components such as outdoor fins and a fan to draw in outdoor air and exchange heat with the refrigerant. In this way, the outdoor evaporator pipe can transfer the cooling capacity of the refrigerant to the outdoor air, thus achieving a cooling effect.

[0067] In this embodiment, the air conditioner can adjust the overcurrent protection current value based on the outdoor evaporator side pipe temperature during both unsteady-state and steady-state heating defrosting processes. When the outdoor evaporator side pipe temperature is below -6 degrees Celsius for more than 5 minutes, and the compressor's cumulative running time exceeds 45 minutes, and the indoor coil temperature is below 48 degrees Celsius, the air conditioner enters the unsteady-state heating defrosting state. At this time, the outdoor unit stops absorbing heat, the indoor unit switches to cooling mode, the four-way valve reverses, and the outdoor heat exchanger dissipates heat to the outside, initiating defrosting. When the outdoor evaporator side pipe temperature gradually rises above 0 degrees Celsius, or the defrosting time reaches the set maximum defrosting time (e.g., 10 minutes), the air conditioner exits the defrosting state and enters the steady-state heating state. At this time, the four-way valve reverses again, and the indoor and outdoor units resume heating mode. When entering defrosting mode, the first current limit is adjusted according to the preset defrosting configuration to obtain the third current limit. The third current limit is used as the overcurrent protection current value for the air conditioner in defrosting mode to control the air conditioner's heating operation, thereby increasing the defrosting frequency and ensuring thorough defrosting.

[0068] This application reasonably modifies the overcurrent protection limit of the AC current preset by the air conditioner based on the temperature of the intelligent power module and the outdoor ambient temperature, so as to avoid insufficient heat exchange capacity, improve heating capacity, ensure the heating effect of the air conditioner, improve the comfort of the indoor temperature, and solve the technical problem that the unit is prone to insufficient heat exchange capacity due to frequency limitation of AC current value under low temperature and ultra-low temperature heating conditions.

[0069] According to another aspect of the embodiments of this application, such as Figure 3 As shown, a heating device for an air conditioner is provided, comprising:

[0070] The determination module 301 is used to determine whether the intelligent power module is operating within a safe temperature range when the air conditioner is in heating mode.

[0071] The acquisition module 303 is used to acquire the first current limit value of the air conditioner and the outdoor ambient temperature when the intelligent power module is operating within the safe temperature range, wherein the first current limit value is an overcurrent protection current value preset for the air conditioner to operate in cooling mode under the condition that the outdoor ambient temperature is greater than or equal to the first temperature.

[0072] Adjustment module 305 is used to adjust the first current limit value according to the outdoor ambient temperature value to obtain the second current limit value;

[0073] The control module 307 is used to control the air conditioner to operate in heating mode by using the second current limit value as the overcurrent protection current value of the air conditioner under the current outdoor ambient temperature.

[0074] It should be noted that the determining module 301 in this embodiment can be used to execute step S102 in this application embodiment, the obtaining module 303 in this embodiment can be used to execute step S104 in this application embodiment, the adjusting module 305 in this embodiment can be used to execute step S106 in this application embodiment, and the controlling module 307 in this embodiment can be used to execute step S108 in this application embodiment.

[0075] It should be noted that the examples and application scenarios implemented by the above modules and corresponding steps are the same, but are not limited to the content disclosed in the above embodiments. It should also be noted that the above modules, as part of the device, can be implemented in software or hardware.

[0076] Optionally, the determining module is specifically configured to: obtain the first maximum safe temperature of the intelligent power module under standard operating conditions, the correction value corresponding to the intelligent power module under the current outdoor ambient temperature, and the current module temperature of the intelligent power module; calculate the second maximum safe temperature of the intelligent power module under the current outdoor ambient temperature based on the correction value of the first maximum safe temperature; if the module temperature is less than or equal to the second maximum safe temperature, determine that the intelligent power module is operating within the safe temperature range; if the module temperature is greater than the second maximum safe temperature, determine that the intelligent power module is not operating within the safe temperature range.

[0077] Optionally, the determining module is further configured to: when the outdoor ambient temperature is greater than or equal to a second temperature, use the first current limit as the second current limit, wherein the second temperature is less than the first temperature; when the outdoor ambient temperature is less than the second temperature and greater than or equal to a third temperature, multiply the first current limit by a first correction coefficient to obtain the second current limit; when the outdoor ambient temperature is less than the third temperature and greater than or equal to a fourth temperature, multiply the first current limit by a second correction coefficient to obtain the second current limit; when the outdoor ambient temperature is less than the fourth temperature and greater than or equal to a fifth temperature, multiply the first current limit by a third correction coefficient to obtain the second current limit; and when the outdoor ambient temperature is less than the fifth temperature and greater than or equal to a sixth temperature, multiply the first current limit by a fourth correction coefficient to obtain the second current limit.

[0078] Optionally, the heating device of the air conditioner further includes a frequency correction module, specifically used for: obtaining the initial operating frequency of the air conditioner at the current outdoor ambient temperature; determining a correction value for the initial operating frequency based on the outdoor ambient temperature; adjusting the initial operating frequency based on the correction value to obtain a target operating frequency; and controlling the air conditioner to operate according to the target operating frequency.

[0079] Optionally, the frequency correction module is further configured to: when the outdoor ambient temperature is greater than or equal to a second temperature, use a first initial operating frequency as the target operating frequency; when the outdoor ambient temperature is less than the second temperature but greater than or equal to a third temperature, use the sum of a second initial operating frequency and a first correction value as the target operating frequency; when the outdoor ambient temperature is less than the third temperature but greater than or equal to a fourth temperature, use the sum of a third initial operating frequency and a second correction value as the target operating frequency; when the outdoor ambient temperature is less than the fourth temperature but greater than or equal to a fifth temperature, use the sum of a fourth initial operating frequency and a third correction value as the target operating frequency; and when the outdoor ambient temperature is less than the fifth temperature but greater than or equal to a sixth temperature, use the sum of a fifth initial operating frequency and a fourth correction value as the target operating frequency.

[0080] Optionally, the heating device of the air conditioner further includes a defrosting module, specifically used for: obtaining the pipe temperature of the outdoor evaporator pipe; determining whether to enter the defrosting state based on the pipe temperature of the outdoor evaporator pipe; if entering the defrosting state, adjusting the first current limit value according to the preset defrosting configuration to obtain a third current limit value; and using the third current limit value as the overcurrent protection current value for the air conditioner to operate in the defrosting state to control the heating operation of the air conditioner.

[0081] According to another aspect of the embodiments of this application, this application provides an air conditioner, such as... Figure 4 As shown, the air conditioner includes an indoor unit and an outdoor unit. The indoor unit includes an indoor fan, an indoor fan assembly, an indoor unit control board, and an indoor unit heat exchanger. The outdoor unit includes an outdoor fan, an outdoor fan assembly, an outdoor unit control board, a compressor, a condenser, a four-way valve, and a throttling element. When the air conditioner is in heating mode, it performs any of the heating methods described above.

[0082] According to another aspect of the embodiments of this application, this application provides an electronic device, such as... Figure 5 As shown, the system includes a memory 501, a processor 503, a communication interface 505, and a communication bus 507. The memory 501 stores a computer program that can run on the processor 503. The memory 501 and the processor 503 communicate through the communication interface 505 and the communication bus 507. When the processor 503 executes the computer program, it implements the steps of the above method.

[0083] The memory and processor in the aforementioned electronic devices communicate with each other via a communication bus and a communication interface. The communication bus can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. This communication bus can be divided into an address bus, a data bus, a control bus, etc.

[0084] The memory may include random access memory (RAM) or non-volatile memory, such as at least one disk storage device. Optionally, the memory may also be at least one storage device located remotely from the aforementioned processor.

[0085] The processors mentioned above can be general-purpose processors, including central processing units (CPUs), network processors (NPs), etc.; they can also be digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components.

[0086] According to another aspect of the embodiments of this application, a computer program product or computer program is also provided, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the steps of any of the above embodiments.

[0087] Optionally, in embodiments of this application, the computer-readable medium is configured to store program code for the processor to perform the following steps:

[0088] When the air conditioner is in heating mode, determine whether the intelligent power module is operating within a safe temperature range;

[0089] When the intelligent power module is operating within the safe temperature range, the first current limit of the air conditioner and the outdoor ambient temperature are obtained, wherein the first current limit is an overcurrent protection current value pre-set for the air conditioner to operate in cooling mode under the condition that the outdoor ambient temperature is greater than or equal to the first temperature.

[0090] The first current limit is adjusted according to the outdoor ambient temperature value to obtain the second current limit;

[0091] The second current limit is used as the overcurrent protection current value for the air conditioner to operate in heating mode under the current outdoor ambient temperature, thereby controlling the air conditioner's heating operation.

[0092] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0093] In specific implementation, the embodiments of this application can be referred to the above embodiments and have corresponding technical effects.

[0094] It is understood that the embodiments described herein can be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions described herein, or combinations thereof.

[0095] For software implementation, the techniques described herein can be implemented by units that perform the functions described herein. The software code can be stored in memory and executed by a processor. The memory can be implemented in the processor or external to the processor.

[0096] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0097] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0098] In the embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of modules is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple modules or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interfaces, devices, or units, and may be electrical, mechanical, or other forms.

[0099] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0100] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0101] If the aforementioned function is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiments of this application, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, ROM, RAM, magnetic disks, or optical disks. It should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In the absence of further restrictions, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0102] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A method of heating for an air conditioner, characterized by, include: When the air conditioner is in heating mode, determine whether the intelligent power module is operating within a safe temperature range; When the intelligent power module is operating within the safe temperature range, the first current limit of the air conditioner and the outdoor ambient temperature are obtained, wherein the first current limit is an overcurrent protection current value pre-set for the air conditioner to operate in cooling mode under the condition that the outdoor ambient temperature is greater than or equal to the first temperature. The first current limit is adjusted according to the outdoor ambient temperature value to obtain the second current limit value, wherein the lower the outdoor ambient temperature value, the greater the increase in the adjustment of the first current limit value; The second current limit is used as the overcurrent protection current value of the air conditioner when it is in heating operation at the current outdoor ambient temperature to control the heating operation of the air conditioner; The method further includes: obtaining the pipe temperature of the outdoor evaporator pipe; determining whether to enter the defrosting state based on the pipe temperature of the outdoor evaporator pipe; if entering the defrosting state, adjusting the first current limit value according to the preset defrosting configuration to obtain a third current limit value; and using the third current limit value as the overcurrent protection current value for the air conditioner to operate in the defrosting state to control the air conditioner's heating operation.

2. The method of claim 1, wherein the air conditioner is a multi-split air conditioner. Determining whether the intelligent power module is operating within a safe temperature range includes: The first maximum safe temperature of the intelligent power module under standard operating conditions, the correction value of the intelligent power module under the current outdoor ambient temperature, and the current module temperature of the intelligent power module are obtained. Calculate the second maximum safe temperature of the intelligent power module under the current outdoor ambient temperature based on the correction value of the first maximum safe temperature; If the module temperature is less than or equal to the second maximum safe temperature, then the intelligent power module is determined to be operating within the safe temperature range. If the module temperature is greater than the second maximum safe temperature, then it is determined that the intelligent power module is not operating within the safe temperature range.

3. The method of claim 2, wherein the air conditioner is a multi-split air conditioner. The step of adjusting the first current limit based on the outdoor ambient temperature value to obtain the second current limit includes: When the outdoor ambient temperature is greater than or equal to the second temperature, the first current limit is used as the second current limit, and the second temperature is less than the first temperature; When the outdoor ambient temperature is lower than the second temperature and greater than or equal to the third temperature, the first current limit is multiplied by the first correction factor to obtain the second current limit. When the outdoor ambient temperature is less than the third temperature and greater than or equal to the fourth temperature, the first current limit is multiplied by the second correction coefficient to obtain the second current limit. When the outdoor ambient temperature is less than the fourth temperature and greater than or equal to the fifth temperature, the first current limit is multiplied by the third correction factor to obtain the second current limit. When the outdoor ambient temperature is less than the fifth temperature and greater than or equal to the sixth temperature, the first current limit is multiplied by the fourth correction factor to obtain the second current limit.

4. The method of claim 3, wherein the air conditioner is a multi- split air conditioner. After controlling the air conditioner's heating operation by using the second current limit as the overcurrent protection current value for the air conditioner under the current outdoor ambient temperature, the method further includes: Obtain the initial operating frequency of the air conditioner at the current outdoor ambient temperature; The correction value for the initial operating frequency is determined based on the outdoor ambient temperature. The initial operating frequency is adjusted according to the correction value to obtain the target operating frequency; Control the air conditioner to operate at the target operating frequency.

5. The method of claim 4, wherein the air conditioner is a multi-split air conditioner. The step of adjusting the initial operating frequency according to the correction value to obtain the target operating frequency includes: When the outdoor ambient temperature is greater than or equal to the second temperature, the first initial operating frequency is taken as the target operating frequency; When the outdoor ambient temperature is lower than the second temperature and greater than or equal to the third temperature, the sum of the second initial operating frequency and the first correction value is taken as the target operating frequency. When the outdoor ambient temperature is less than the third temperature and greater than or equal to the fourth temperature, the sum of the third initial operating frequency and the second correction value is taken as the target operating frequency. When the outdoor ambient temperature is less than the fourth temperature and greater than or equal to the fifth temperature, the sum of the fourth initial operating frequency and the third correction value is taken as the target operating frequency. When the outdoor ambient temperature is less than the fifth temperature and greater than or equal to the sixth temperature, the sum of the fifth initial operating frequency and the fourth correction value is taken as the target operating frequency.

6. A heating device of an air conditioner for implementing the heating method of the air conditioner according to any one of claims 1 to 5, characterized by, include: The determination module is used to determine whether the intelligent power module is operating within a safe temperature range when the air conditioner is in heating mode. The acquisition module is used to acquire the first current limit value of the air conditioner and the outdoor ambient temperature when the intelligent power module is operating within the safe temperature range, wherein the first current limit value is an overcurrent protection current value preset for the air conditioner to operate in cooling mode under the condition that the outdoor ambient temperature is greater than or equal to the first temperature. An adjustment module is used to adjust the first current limit value according to the outdoor ambient temperature value to obtain a second current limit value; The control module is used to control the air conditioner to operate in heating mode by using the second current limit as the overcurrent protection current value of the air conditioner under the current outdoor ambient temperature.

7. An air conditioner comprising an indoor unit and an outdoor unit, the indoor unit comprising an indoor fan, an indoor fan component, an indoor unit control board and an indoor unit heat exchanger, the outdoor unit comprising an outdoor fan, an outdoor fan component, an outdoor unit control board, a compressor, a condenser, a four-way valve and a throttling element, characterized in that, When the air conditioner is in heating mode, the heating method of the air conditioner as described in any one of claims 1 to 5 is executed.

8. An electronic device comprising a memory, a processor, a communication interface and a communication bus, the memory storing a computer program executable on the processor, the memory, the processor communicating through the communication bus and the communication interface, characterized in that, When the processor executes the computer program, it implements the heating method of the air conditioner according to any one of claims 1 to 5.

9. A computer readable medium having a non-transitory program code executable by a processor, the program code comprising instructions for: The program code causes the processor to execute the heating method of the air conditioner according to any one of claims 1 to 5.

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