A control method, apparatus, air conditioner, and storage medium for an air conditioner.

Abstract

This invention discloses a control method, device, air conditioner, and storage medium for an air conditioner. The method includes: when the air conditioner is in heating mode, determining whether the electric auxiliary heating component needs to be activated based on the current indoor ambient temperature, target temperature, and current indoor heat exchanger pipe temperature; if activation is required, determining the number of electric auxiliary heating elements to be activated based on the current indoor ambient temperature, and controlling the activation of the corresponding number of electric auxiliary heating elements in the electric auxiliary heating component; after controlling the activation of the electric auxiliary heating component, controlling the operation of the electric auxiliary heating component and the operating frequency of the compressor based on the current indoor ambient temperature and current indoor heat exchanger pipe temperature. This solution, by optimizing the control mode of the air conditioner's electric auxiliary heating component, maximizes energy saving and user comfort while ensuring safety.

Description

Technical Field

[0001] This invention belongs to the field of air conditioner technology, specifically relating to a control method, device, air conditioner, and storage medium for an air conditioner, and particularly to a control method, device, air conditioner, and storage medium for the electric auxiliary heating function of an air conditioner. Background Technology

[0002] Air conditioners have become an indispensable household appliance, capable of cooling or heating the indoor environment to meet different heat exchange needs. When an air conditioner is in heating mode, if the outdoor temperature is low, its heat exchange capacity will decrease, affecting user comfort. In this case, activating the air conditioner's electric auxiliary heating function can greatly improve the heating effect, rapidly raising the room temperature. However, using the electric auxiliary heating function also brings problems such as high energy consumption and safety concerns.

[0003] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is prior art. Summary of the Invention

[0004] The purpose of this invention is to provide a control method, device, air conditioner, and storage medium for an air conditioner. This addresses the issue that when an air conditioner is in heating mode, if the outdoor temperature is low, activating the auxiliary electric heating function can significantly improve the heating effect and rapidly raise the indoor temperature. However, this also leads to high energy consumption and safety concerns. The invention aims to optimize the control mode of the auxiliary electric heating function by combining the indoor ambient temperature and the indoor heat exchanger pipe temperature during heating operation. This allows the air conditioner to maximize energy savings and enhance user comfort while ensuring safety.

[0005] This invention provides a control method for an air conditioner, wherein the air conditioner has an indoor unit and an outdoor unit; the indoor unit has an indoor heat exchanger and an electric auxiliary heating assembly; the electric auxiliary heating assembly includes: electric auxiliary heating elements, the number of which is two or more, the two or more electric auxiliary heating elements are arranged in parallel and can be turned on and off independently; the outdoor unit has a compressor; the control method for the air conditioner includes: when the air conditioner is operating in heating mode, acquiring the indoor ambient temperature of the air conditioner and recording it as the current indoor ambient temperature of the air conditioner; acquiring the pipe temperature of the indoor heat exchanger and recording it as the current indoor heat exchanger pipe temperature of the air conditioner; and acquiring the target temperature of the air conditioner; and based on the current indoor ambient temperature and the target temperature of the air conditioner... The system determines whether the electric auxiliary heating assembly needs to be activated based on the target temperature of the air conditioner and the current indoor heat exchanger pipe temperature. If it is determined that the electric auxiliary heating assembly needs to be activated, the system determines the number of electric auxiliary heating elements that need to be activated based on the current indoor ambient temperature of the air conditioner. Based on the determined number of electric auxiliary heating elements that need to be activated, the system controls the activation of the corresponding number of electric auxiliary heating elements in the electric auxiliary heating assembly. After the electric auxiliary heating assembly is activated, the system controls the operation of the activated electric auxiliary heating assembly and the operating frequency of the compressor based on the current indoor ambient temperature and the current indoor heat exchanger pipe temperature of the air conditioner.

[0006] In some implementations, determining whether the electric auxiliary heating component needs to be turned on is based on the current indoor ambient temperature of the air conditioner, the target temperature of the air conditioner, and the current indoor heat exchanger pipe temperature of the air conditioner. This includes: determining the temperature difference between the target temperature of the air conditioner and the current indoor ambient temperature of the air conditioner, denoted as the indoor temperature difference of the air conditioner; determining whether the current indoor ambient temperature of the air conditioner is less than a first preset temperature value and the indoor temperature difference of the air conditioner is greater than a first preset temperature threshold; if so, determining that the electric auxiliary heating component needs to be turned on; if not, determining whether the current indoor heat exchanger pipe temperature of the air conditioner is greater than or equal to a first set pipe temperature: if so, determining that the electric auxiliary heating component does not need to be turned on and keeping the electric auxiliary heating component in a closed state; otherwise, determining that the electric auxiliary heating component needs to be turned on.

[0007] In some implementations, when it is determined that the electric auxiliary heating assembly needs to be activated, the number of electric auxiliary heating elements in the electric auxiliary heating assembly that need to be activated is determined based on the current indoor ambient temperature of the air conditioner. This includes: determining whether the current indoor ambient temperature of the air conditioner is greater than or equal to a second preset temperature value; the second preset temperature value is less than a first preset temperature value; if the current indoor ambient temperature of the air conditioner is determined to be greater than or equal to the second preset temperature value, then the number of electric auxiliary heating elements in the electric auxiliary heating assembly that need to be activated is determined to be a first preset number; if the current indoor ambient temperature of the air conditioner is determined to be less than the second preset temperature value, then the number of electric auxiliary heating elements in the electric auxiliary heating assembly that need to be activated is determined to be a second preset number; the second preset number is greater than the first preset number.

[0008] In some implementations, after the electric auxiliary heating component is activated, the operation of the activated electric auxiliary heating component is controlled based on the current indoor ambient temperature of the air conditioner and the current indoor heat exchanger pipe temperature of the air conditioner, and the operating frequency of the compressor is also controlled. This includes determining whether the current indoor ambient temperature of the air conditioner is greater than a third preset temperature value, or whether the current indoor heat exchanger pipe temperature of the air conditioner is greater than a second set pipe temperature; the third preset temperature value is greater than a first preset temperature value, and the second set pipe temperature is greater than the first set pipe temperature; if these conditions are met, the activated electric auxiliary heating component is activated. If the conditions are not met, the electric auxiliary heating component remains in its current on state, and after a first set time, it is re-determined whether the current indoor ambient temperature of the air conditioner is greater than a third preset temperature value, or whether the current indoor heat exchanger pipe temperature of the air conditioner is greater than a second preset pipe temperature. If the conditions are met, the electric auxiliary heating component is controlled to shut down; if the conditions are not met, the electric auxiliary heating component is controlled to shut down, and at the same time, the operating frequency of the compressor is increased to the preset maximum frequency of the compressor, and the compressor is controlled to operate at the preset maximum frequency of the compressor.

[0009] In some implementations, after controlling the electric auxiliary heating component to turn on, the operation of the turned-on electric auxiliary heating component is controlled based on the current indoor ambient temperature of the air conditioner and the current indoor heat exchanger pipe temperature of the air conditioner, and the operating frequency of the compressor is also controlled. This further includes: after controlling the compressor to run at its preset maximum frequency for a second set time, determining whether the current indoor heat exchanger pipe temperature of the air conditioner has decreased; wherein the second set time is shorter than the first set time; if it is determined that the current indoor heat exchanger pipe temperature of the air conditioner has decreased, then the electric auxiliary heating component, which was turned on and then off, is controlled to turn on again, so that the operating state of the electric auxiliary heating component returns to the state when the electric auxiliary heating component was off. The system returns to its previous operating state and continues to control the compressor to run at its preset maximum frequency. Then, it returns to its previous state. After the electric auxiliary heating component, which had been turned on and then off, is turned on again, the system re-integrates the current indoor ambient temperature and the current indoor heat exchanger pipe temperature of the air conditioner to control the operation of the reopened electric auxiliary heating component and the operating frequency of the compressor. If it is determined that the current indoor heat exchanger pipe temperature of the air conditioner has not decreased, the electric auxiliary heating component, which had been turned on and then off, remains off, and the compressor continues to run at its preset maximum frequency. Then, according to the normal heating logic in the heating mode, the compressor is controlled to operate normally for heating.

[0010] In accordance with the above method, another aspect of the present invention provides a control device for an air conditioner, the air conditioner having an indoor unit and an outdoor unit; the indoor unit having an indoor heat exchanger and an electric auxiliary heating assembly; the electric auxiliary heating assembly including: two or more electric auxiliary heating elements, the two or more electric auxiliary heating elements being arranged in parallel and capable of being turned on and off independently; the outdoor unit having a compressor; the control device for the air conditioner including: an acquisition unit configured to, when the air conditioner is operating in heating mode, acquire the indoor ambient temperature of the air conditioner, and record it as the current indoor ambient temperature of the air conditioner; acquire the pipe temperature of the indoor heat exchanger, and record it as the current indoor heat exchanger pipe temperature of the air conditioner; and acquire the target temperature of the air conditioner; and a control unit configured to, based on the current indoor ambient temperature of the air conditioner... The control unit is configured to determine whether the electric auxiliary heating assembly needs to be activated based on the temperature and the target temperature of the air conditioner, combined with the current indoor heat exchanger pipe temperature of the air conditioner; the control unit is further configured to, if it is determined that the electric auxiliary heating assembly needs to be activated, determine the number of electric auxiliary heating elements in the electric auxiliary heating assembly that need to be activated based on the current indoor ambient temperature of the air conditioner; and, based on the determined number of electric auxiliary heating elements in the electric auxiliary heating assembly that need to be activated, control the activation of the corresponding number of electric auxiliary heating elements in the electric auxiliary heating assembly to control the activation of the electric auxiliary heating assembly; the control unit is further configured to, after controlling the activation of the electric auxiliary heating assembly, control the operation of the activated electric auxiliary heating assembly and control the operating frequency of the compressor, combined with the current indoor ambient temperature of the air conditioner and the current indoor heat exchanger pipe temperature of the air conditioner.

[0011] In some embodiments, the control unit determines whether the electric auxiliary heating component needs to be turned on based on the current indoor ambient temperature of the air conditioner, the target temperature of the air conditioner, and the current indoor heat exchanger pipe temperature of the air conditioner. This includes: determining the temperature difference between the target temperature of the air conditioner and the current indoor ambient temperature of the air conditioner, denoted as the indoor temperature difference of the air conditioner; determining whether the current indoor ambient temperature of the air conditioner is less than a first preset temperature value and the indoor temperature difference of the air conditioner is greater than a first preset temperature threshold; if satisfied, determining that the electric auxiliary heating component needs to be turned on; if not satisfied, determining whether the current indoor heat exchanger pipe temperature of the air conditioner is greater than or equal to a first set pipe temperature; if yes, determining that the electric auxiliary heating component does not need to be turned on and keeping the electric auxiliary heating component in a closed state; otherwise, determining that the electric auxiliary heating component needs to be turned on.

[0012] In some embodiments, when the control unit determines that the electric auxiliary heating assembly needs to be activated, it determines the number of electric auxiliary heating elements in the electric auxiliary heating assembly that need to be activated based on the current indoor ambient temperature of the air conditioner. This includes: determining whether the current indoor ambient temperature of the air conditioner is greater than or equal to a second preset temperature value; the second preset temperature value is less than a first preset temperature value; if the current indoor ambient temperature of the air conditioner is determined to be greater than or equal to the second preset temperature value, then the number of electric auxiliary heating elements in the electric auxiliary heating assembly that need to be activated is determined to be a first preset number; if the current indoor ambient temperature of the air conditioner is determined to be less than the second preset temperature value, then the number of electric auxiliary heating elements in the electric auxiliary heating assembly that need to be activated is determined to be a second preset number; the second preset number is greater than the first preset number.

[0013] In some embodiments, after the control unit controls the electric auxiliary heating component to turn on, it combines the current indoor ambient temperature of the air conditioner and the current indoor heat exchanger pipe temperature of the air conditioner to control the operation of the turned-on electric auxiliary heating component and control the operating frequency of the compressor, including: determining whether the current indoor ambient temperature of the air conditioner is greater than a third preset temperature value, or whether the current indoor heat exchanger pipe temperature of the air conditioner is greater than a second set pipe temperature; the third preset temperature value is greater than a first preset temperature value, and the second set pipe temperature is greater than the first set pipe temperature; if satisfied, then controlling the turned-on electric auxiliary heating component to turn on... The electric auxiliary heating component is turned off; if not, the currently turned-on electric auxiliary heating component remains on, and after a first set time, it is re-determined whether the current indoor ambient temperature of the air conditioner is greater than a third preset temperature value, or whether the current indoor heat exchanger pipe temperature of the air conditioner is greater than a second preset pipe temperature: if satisfied, the currently turned-on electric auxiliary heating component is turned off; if not, the currently turned-on electric auxiliary heating component is turned off, and at the same time, the operating frequency of the compressor is increased to the preset maximum frequency of the compressor, and the compressor is controlled to operate at the preset maximum frequency of the compressor.

[0014] In some embodiments, after the control unit controls the electric auxiliary heating component to turn on, it combines the current indoor ambient temperature of the air conditioner and the current indoor heat exchanger pipe temperature of the air conditioner to control the operation of the turned-on electric auxiliary heating component and control the operating frequency of the compressor. The control unit further includes: after controlling the compressor to run at the compressor's preset maximum frequency for a second set time, determining whether the current indoor heat exchanger pipe temperature of the air conditioner has decreased; wherein the second set time is shorter than the first set time; if it is determined that the current indoor heat exchanger pipe temperature of the air conditioner has decreased, then controlling the electric auxiliary heating component, which was turned on and then off, to turn on again, so that the operating state of the electric auxiliary heating component returns to the normal operating state. The system returns to its previous operating state before the component is shut down, and continues to control the compressor to run at its preset maximum frequency. Then, it returns to the previous state so that after the electric auxiliary heating component, which was turned on and then off, is turned back on, the system re-integrates the current indoor ambient temperature and the current indoor heat exchanger pipe temperature of the air conditioner to control the operation of the reopened electric auxiliary heating component and the operating frequency of the compressor. If it is determined that the current indoor heat exchanger pipe temperature of the air conditioner has not decreased, the electric auxiliary heating component, which was turned on and then off, remains off, and the compressor continues to run at its preset maximum frequency. Then, according to the normal heating logic in the heating mode, the compressor is controlled to operate normally for heating.

[0015] In conjunction with the above-described device, the present invention further provides an air conditioner, comprising: the control device for the air conditioner described above.

[0016] In conjunction with the above method, the present invention further provides a storage medium comprising a stored program, wherein, when the program is executed, the device on which the storage medium is located controls the air conditioner control method described above to be performed.

[0017] Therefore, the solution of the present invention implements the electric auxiliary heating function of the air conditioner by setting a set of electric auxiliary heating elements at the indoor heat exchanger of the air conditioner; the set of electric auxiliary heating elements includes at least two electric auxiliary heating elements arranged in parallel, and each electric auxiliary heating element can be turned on and off independently; when the air conditioner is in heating mode, the indoor ambient temperature and the indoor heat exchanger pipe temperature are detected; based on the indoor ambient temperature, the difference between the indoor ambient temperature and the set temperature, and the indoor heat exchanger pipe temperature, it is determined whether the electric auxiliary heating function of the air conditioner needs to be activated; after determining that the electric auxiliary heating function of the air conditioner needs to be activated, the current... The indoor ambient temperature determines the number of electric auxiliary heating elements to be activated in the electric auxiliary heating function. Simultaneously, after activating the determined number of electric auxiliary heating elements, based on the indoor ambient temperature and the indoor heat exchanger pipe temperature, it is determined whether the air conditioner's electric auxiliary heating function needs to be deactivated, and the compressor's operating frequency is adjusted accordingly. Thus, by combining the indoor ambient temperature and the indoor heat exchanger pipe temperature during air conditioner heating operation to control the activation and deactivation of the air conditioner's electric auxiliary heating function and the compressor's operating frequency, the control mode of the air conditioner's electric auxiliary heating function is optimized, enabling the air conditioner to maximize energy saving and user comfort while ensuring safety.

[0018] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention.

[0019] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0020] Figure 1 This is a flowchart illustrating an embodiment of the control method for an air conditioner according to the present invention;

[0021] Figure 2 This is a flowchart illustrating an embodiment of the method of the present invention for determining whether the electric auxiliary heating component needs to be turned on;

[0022] Figure 3 This is a flowchart illustrating an embodiment of the method of the present invention for determining the number of electric auxiliary heating elements that need to be activated in the electric auxiliary heating assembly;

[0023] Figure 4 This is a schematic flowchart of an embodiment of the method of the present invention, which combines the current indoor ambient temperature of the air conditioner and the current indoor heat exchanger tube temperature of the air conditioner to control the operation of the activated electric auxiliary heating component.

[0024] Figure 5 This is a schematic flowchart of an embodiment of the method of the present invention, which combines the operating frequency of the compressor 10 to control the operation of the activated electric auxiliary heating component.

[0025] Figure 6 This is a schematic diagram of the structure of an embodiment of the control device for an air conditioner according to the present invention;

[0026] Figure 7 A schematic diagram of one embodiment of an air conditioner;

[0027] Figure 8 A flowchart illustrating an embodiment of the activation logic for the electric auxiliary heating function of an air conditioner;

[0028] Figure 9 A flowchart illustrating an embodiment of the shutdown logic for the electric auxiliary heating function of an air conditioner.

[0029] Referring to the accompanying drawings, the reference numerals in the embodiments of the present invention are as follows:

[0030] 10-Compressor; 20-Four-way valve; 30-Outdoor heat exchanger; 40-Electronic expansion valve; 50-Indoor heat exchanger; 51-First electric auxiliary heating element; 52-Second electric auxiliary heating element; 102-Acquisition unit; 104-Control unit. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0032] Considering that when an air conditioner is in heating mode, if the outdoor temperature is low, using the air conditioner's electric auxiliary heating function can greatly improve the air conditioner's heating effect and quickly raise the indoor temperature, but using the electric auxiliary heating function also brings high energy consumption and safety issues.

[0033] In the relevant solutions, the air conditioner's electric auxiliary heating function uses a single electric auxiliary heating element. The activation and deactivation of the air conditioner's electric auxiliary heating function are controlled based on the indoor ambient temperature and the indoor heat exchanger pipe temperature. For example, when the difference between the indoor ambient temperature and the set temperature is large, and the indoor heat exchanger pipe temperature is less than a set value, it is determined that the air conditioner's electric auxiliary heating function can be activated; when the difference between the indoor ambient temperature and the set temperature is small, or the indoor heat exchanger pipe temperature is greater than another set value, and either condition is met, the air conditioner's electric auxiliary heating function is deactivated. However, the control method for the electric auxiliary heating function of the air conditioner in the relevant solutions cannot control the on / off state of the electric auxiliary heating function according to the specific indoor temperature. When the indoor temperature is too low, a single electric auxiliary heating element cannot meet the heating comfort requirements at the beginning of the air conditioner's operation, requiring an increase in the number of electric auxiliary heating elements. When the indoor temperature is high, if there is only one electric auxiliary heating element, the power of that single electric auxiliary heating element will be too high, resulting in the indoor heat exchanger temperature of the air conditioner being too high, posing a safety hazard. At the same time, when the outdoor temperature is very low, once the electric auxiliary heating function of the air conditioner is turned on, the conditions for turning off the air conditioner's electric auxiliary heating function cannot be met, causing the air conditioner's electric auxiliary heating function to remain on, resulting in increased power consumption.

[0034] Therefore, in order to ensure that users can still have a good comfort experience when the outdoor temperature is low, the control mode of the air conditioner's electric auxiliary heating function needs to be optimized to maximize energy saving and user comfort while meeting safety requirements.

[0035] Therefore, the present invention proposes a control method for an air conditioner, specifically a control method for the electric auxiliary heating function of an air conditioner, to optimize the control mode of the electric auxiliary heating function of the air conditioner, so that the air conditioner can maximize energy saving and user comfort while ensuring safety.

[0036] According to embodiments of the present invention, a control method for an air conditioner is provided, such as... Figure 1 The diagram shows a flowchart of an embodiment of the method of the present invention. The air conditioner has an indoor unit and an outdoor unit; the indoor unit has an indoor heat exchanger 50 and an electric auxiliary heating assembly; the electric auxiliary heating assembly includes: electric auxiliary heating elements, the number of which is two or more, such as a first electric auxiliary heating element 51 and a second electric auxiliary heating element 52, the two or more electric auxiliary heating elements are arranged in parallel and can be turned on and off independently; the outdoor unit has a compressor 10.

[0037] Specifically, Figure 7 This is a structural schematic diagram of one embodiment of an air conditioner. Figure 7The air conditioner shown comprises an indoor unit and an outdoor unit. The indoor unit consists of an indoor heat exchanger 50, a first electric auxiliary heating element 51 (i.e., electric auxiliary heater 1), and a second electric auxiliary heating element 52 (i.e., electric auxiliary heater 2). The outdoor unit consists of an outdoor heat exchanger 30, a compressor 10, a four-way valve 20, and an electronic expansion valve 40. The exhaust port of the compressor 10 is connected to the first port of the four-way valve 20. The second port of the four-way valve 20, after passing through the outdoor heat exchanger 30, the electronic expansion valve 40, and the indoor heat exchanger 50, is connected to the fourth port of the four-way valve 20. The third port of the four-way valve 20 returns to the suction port of the compressor 10.

[0038] The first electric auxiliary heating element 51 (i.e., electric auxiliary heating 1) and the second electric auxiliary heating element 52 (i.e., electric auxiliary heating 2) are arranged in parallel. Specifically, the first electric auxiliary heating element 51 (i.e., electric auxiliary heating 1) and the second electric auxiliary heating element 52 (i.e., electric auxiliary heating 2) can be arranged in parallel on the air outlet side of the indoor heat exchanger 50. Preferably, the first electric auxiliary heating element 51 (i.e., electric auxiliary heating 1) and the second electric auxiliary heating element 52 (i.e., electric auxiliary heating 2) can be arranged in parallel inside the air outlet of the indoor unit to heat the air at the air outlet of the indoor unit, thereby increasing the air outlet temperature of the indoor unit. Furthermore, the first electric auxiliary heating element 51 (i.e., electric auxiliary heating 1) and the second electric auxiliary heating element 52 (i.e., electric auxiliary heating 2) can be controlled to turn on and off separately; that is, the first electric auxiliary heating element 51 (i.e., electric auxiliary heating 1) and the second electric auxiliary heating element 52 (i.e., electric auxiliary heating 2) can be controlled to turn on and off separately.

[0039] For example: Electric auxiliary heater 1 and electric heater 2 are connected in parallel and placed in front of indoor heat exchanger 50; the air conditioner draws air in from the air inlet, and the air is heated by passing through indoor heat exchanger 50 and electric heater (i.e., electric auxiliary heater 1 and electric heater 2) in sequence before being blown into the room; the two electric auxiliary heaters (i.e., electric auxiliary heater 1 and electric heater 2) are connected in parallel, and electric auxiliary heater 1 and / or electric heater 2 can be selectively turned on according to the actual situation. When the indoor ambient temperature is very low, both electric auxiliary heaters (i.e., electric auxiliary heater 1 and electric heater 2) are put into use. When the indoor ambient temperature is not too low, only one electric auxiliary heater (i.e., electric auxiliary heater 1 or electric heater 2) can be turned on.

[0040] In the solution of the present invention, such as Figure 1 As shown, the control method of the air conditioner includes steps S110 to S140.

[0041] In step S110, after the air conditioner turns on the heating mode, the electric auxiliary heating component is in the off state by default; when the air conditioner is running in the heating mode and the electric auxiliary heating component is not prohibited from being turned on, the indoor ambient temperature of the air conditioner is obtained and recorded as the current indoor ambient temperature of the air conditioner; the pipe temperature of the indoor heat exchanger 50 is obtained and recorded as the current indoor heat exchanger pipe temperature of the air conditioner; and the target temperature of the air conditioner is obtained.

[0042] In step S120, based on the current indoor ambient temperature of the air conditioner and the target temperature of the air conditioner, and in conjunction with the current indoor heat exchanger pipe temperature of the air conditioner, it is determined whether the electric auxiliary heating component needs to be turned on.

[0043] In some implementations, the specific process of determining whether the electric auxiliary heating component needs to be turned on in step S120 is based on the current indoor ambient temperature of the air conditioner and the target temperature of the air conditioner, combined with the current indoor heat exchanger pipe temperature of the air conditioner. See the following exemplary description.

[0044] The following is combined with Figure 2 The schematic diagram shown is a flowchart of an embodiment of the method of the present invention for determining whether the electric auxiliary heating component needs to be turned on. It further illustrates the specific process of determining whether the electric auxiliary heating component needs to be turned on in step S120, including steps S210 to S240.

[0045] Step S210: Determine the temperature difference between the target temperature of the air conditioner and the current indoor ambient temperature of the air conditioner, and record it as the indoor temperature difference of the air conditioner.

[0046] Step S220: Determine whether the current indoor ambient temperature of the air conditioner is lower than a first preset temperature value, and whether the indoor temperature difference of the air conditioner is greater than a first preset temperature threshold. The first preset temperature value is, for example, temperature T. 预设值1 The first preset temperature threshold is such as temperature Δt1.

[0047] Step S230: If the conditions are met, it is determined that the electric auxiliary heating component needs to be turned on.

[0048] Step S240: If the condition is not met, determine whether the current indoor heat exchanger pipe temperature of the air conditioner is greater than or equal to the first set pipe temperature. If yes, determine that the electric auxiliary heating component does not need to be turned on and keep the electric auxiliary heating component in the off state; otherwise, determine that the electric auxiliary heating component needs to be turned on. The first set pipe temperature is, for example, temperature T0.

[0049] Specifically, Figure 8 This is a flowchart illustrating an embodiment of the activation logic for the electric auxiliary heating function of an air conditioner. Figure 8As shown, the activation logic of the air conditioner's electric auxiliary heating function includes:

[0050] Step 11: During the heating operation of the air conditioner, when it is detected that the user has not set the electric auxiliary heating function of the air conditioner to be turned off, the current indoor ambient temperature is obtained and the difference between the indoor ambient temperature and the user-set temperature is calculated. Then, step 12 is executed to determine whether the electric auxiliary heating function of the air conditioner needs to be turned on based on the current indoor ambient temperature of the air conditioner, the difference between the indoor ambient temperature and the user-set temperature, and the indoor heat exchanger temperature.

[0051] Step 12: Determine if the indoor ambient temperature of the air conditioner is less than the temperature T. 预设值1 Furthermore, if the difference between the indoor ambient temperature and the user-set temperature is greater than temperature Δt1: if so, proceed to step 13 to determine the number of electric auxiliary heating elements that need to be activated based on the indoor heat exchanger temperature; otherwise, keep the air conditioner's electric auxiliary heating function off. Wherein, temperature T... 预设值1 The recommended value for temperature Δt1 is 25℃. Temperatures above this indicate that the indoor temperature is relatively high, and the user's heating comfort needs can be met without turning on the air conditioner's electric auxiliary heating function. The recommended value for temperature Δt1 is 3℃. Temperatures below this indicate that the indoor temperature is close to the user's set temperature, and the air conditioner's electric auxiliary heating function does not need to be turned on.

[0052] Step 13: When the indoor ambient temperature detected by the air conditioner is <T 预设值1 When the difference between the indoor ambient temperature and the user-set temperature is greater than Δt1, the pipe temperature of the indoor heat exchanger 50 is further obtained as the indoor heat exchanger temperature, and step 14 is executed, that is, in combination with the indoor heat exchanger temperature, it is confirmed whether the electric auxiliary heating function of the air conditioner needs to be turned on, and the number of electric auxiliary heating elements that need to be turned on when the electric auxiliary heating function of the air conditioner needs to be turned on is determined.

[0053] Step 14: Based on the different temperature ranges of the indoor heat exchanger, determine whether the electric auxiliary heating function of the air conditioner needs to be turned on, and determine the number of electric auxiliary heating elements that need to be turned on when the electric auxiliary heating function of the air conditioner needs to be turned on. For details, please refer to Step 141 and Step 142.

[0054] Step 141: When the indoor heat exchanger temperature is greater than or equal to T0, the air conditioner's electric auxiliary heating function remains off. The recommended value for temperature T0 is 45℃.

[0055] During the heating operation of the air conditioner, the system obtains the current indoor ambient temperature, the difference between the indoor ambient temperature and the user-set temperature, and the indoor heat exchanger temperature to determine whether the air conditioner's electric auxiliary heating function needs to be activated. Once the electric auxiliary heating function is activated and in use, it is then controlled to deactivate based on the current indoor ambient temperature and the indoor heat exchanger pipe temperature. In this way, by optimizing the control mode of the air conditioner's electric auxiliary heating function, the air conditioner's energy consumption is reduced while meeting the user's comfort needs.

[0056] In step S130, if it is determined that the electric auxiliary heating assembly needs to be turned on, the number of electric auxiliary heating elements in the electric auxiliary heating assembly that need to be turned on is determined according to the current indoor ambient temperature of the air conditioner; and, according to the determined number of electric auxiliary heating elements in the electric auxiliary heating assembly that need to be turned on, the corresponding number of electric auxiliary heating elements in the electric auxiliary heating assembly are controlled to be turned on, so as to control the electric auxiliary heating assembly to be turned on.

[0057] In some embodiments, the specific process of determining the number of electric auxiliary heating elements that need to be turned on in step S130, when it is determined that the electric auxiliary heating assembly needs to be turned on, based on the current indoor ambient temperature of the air conditioner, is described in the following exemplary description.

[0058] The following is combined with Figure 3 The flowchart shown is a schematic diagram of an embodiment of the method of the present invention for determining the number of electric auxiliary heating elements that need to be turned on in the electric auxiliary heating assembly. The specific process of determining the number of electric auxiliary heating elements that need to be turned on in the electric auxiliary heating assembly in step S130 is further explained, including steps S310 to S330.

[0059] Step S310: If the current indoor ambient temperature of the air conditioner is lower than a first preset temperature value, determine whether the current indoor ambient temperature of the air conditioner is greater than or equal to a second preset temperature value; the second preset temperature value is less than the first preset temperature value. The second preset temperature value is, for example, temperature T. 预设值2 .

[0060] Step S320: If it is determined that the current indoor ambient temperature of the air conditioner is greater than or equal to a second preset temperature value, then the number of electric auxiliary heating elements that need to be activated in the electric auxiliary heating assembly is determined to be a first preset number; then, based on the determined number of electric auxiliary heating elements that need to be activated in the electric auxiliary heating assembly, i.e., the first preset number, the first preset number of electric auxiliary heating elements in the electric auxiliary heating assembly is controlled to be activated, so as to control the electric auxiliary heating assembly to be activated. The first preset number is, for example, one.

[0061] Step S330: If it is determined that the current indoor ambient temperature of the air conditioner is less than a second preset temperature value, then the number of electric auxiliary heating elements that need to be activated in the electric auxiliary heating assembly is determined to be a second preset number; the second preset number is greater than the first preset number; then, according to the determined number of electric auxiliary heating elements that need to be activated in the electric auxiliary heating assembly, i.e., the second preset number, the second preset number of electric auxiliary heating elements in the electric auxiliary heating assembly is controlled to be activated, so as to control the electric auxiliary heating assembly to be activated. Wherein, the second preset number is two.

[0062] Specifically, such as Figure 8 As shown, the activation logic of the electric auxiliary heating function of the air conditioner also includes: in step 14, step 142, when the indoor heat exchanger temperature is < T0, it is determined that the electric auxiliary heating function of the air conditioner needs to be activated, and the number of electric auxiliary heating elements activated in the electric auxiliary heating function is determined according to the current indoor ambient temperature. For details, please refer to steps 1421 and 1422.

[0063] Step 1421: When the indoor ambient temperature is ≥ temperature T 预设值2 At that time, only the first electric auxiliary heating element 51 (i.e., electric auxiliary heating 1) is activated. Among them, T 预设值 The recommended value for 2 is 10℃.

[0064] Step 1422, when the indoor ambient temperature < T 预设值2 At the same time, the first electric auxiliary heating element 51 (i.e., electric auxiliary heating 1) and the second electric auxiliary heating element 52 (i.e., electric auxiliary heating 2) are turned on.

[0065] In the present invention, by setting multiple parallel electric auxiliary heating elements that can be turned on and off individually, such as the first electric auxiliary heating element 51 (i.e., electric auxiliary heating 1) and the second electric auxiliary heating element 52 (i.e., electric auxiliary heating 2), when the air conditioner is in heating mode, different electric auxiliary heating elements can be turned on according to different indoor ambient temperatures. For example, when the indoor ambient temperature is high, turning on one electric auxiliary heating element can meet the user's heating comfort needs, while when the indoor ambient temperature is low and the user needs to raise the indoor ambient temperature as soon as possible, two or more electric auxiliary heating elements can be turned on, making the use of the electric auxiliary heating function of the air conditioner more flexible.

[0066] In step S140, after controlling the electric auxiliary heating component to turn on, the operation of the turned-on electric auxiliary heating component is controlled in combination with the current indoor ambient temperature of the air conditioner and the current indoor heat exchanger pipe temperature of the air conditioner, and the operating frequency of the compressor 10 is controlled.

[0067] This invention proposes a control scheme for the electric auxiliary heating function of an air conditioner. The scheme involves setting up two or more parallel electric auxiliary heating elements. During air conditioner heating operation, the indoor ambient temperature and the indoor heat exchanger pipe temperature are acquired, and the difference between the set temperature and the ambient temperature is calculated. Based on the indoor ambient temperature, the difference between the indoor ambient temperature and the set temperature, and the indoor heat exchanger pipe temperature, it is determined whether to activate the air conditioner's electric auxiliary heating function. After determining that the electric auxiliary heating function needs to be activated, the number of electric auxiliary heating elements to be activated is determined based on the current indoor ambient temperature. Simultaneously, after the air conditioner's electric auxiliary heating function is activated and put into use, it is determined whether to deactivate the air conditioner's electric auxiliary heating function based on the indoor ambient temperature and the indoor heat exchanger pipe temperature, and the compressor's operating frequency is adjusted synchronously to enable the air conditioner to achieve greater energy savings while meeting the user's heating comfort requirements.

[0068] In some embodiments, after controlling the electric auxiliary heating component to turn on in step S140, the operation of the turned-on electric auxiliary heating component is controlled in combination with the current indoor ambient temperature of the air conditioner and the current indoor heat exchanger pipe temperature of the air conditioner, and the operating frequency of the compressor 10 is controlled. This includes a first process of controlling the operation of the turned-on electric auxiliary heating component in combination with the current indoor ambient temperature of the air conditioner and the current indoor heat exchanger pipe temperature of the air conditioner.

[0069] The following is combined with Figure 4 The flowchart shown is a schematic diagram of an embodiment of the method of the present invention, which combines the current indoor ambient temperature of the air conditioner and the current indoor heat exchanger pipe temperature of the air conditioner to control the operation of the activated electric auxiliary heating component. It further illustrates the specific process of controlling the operation of the activated electric auxiliary heating component in step S140 by combining the current indoor ambient temperature of the air conditioner and the current indoor heat exchanger pipe temperature of the air conditioner, including steps S410 to S430.

[0070] Step S410: Determine whether the current indoor ambient temperature of the air conditioner is greater than a third preset temperature value, or whether the current indoor heat exchanger pipe temperature of the air conditioner is greater than a second set pipe temperature; the third preset temperature value is greater than the first preset temperature value, and the second set pipe temperature is greater than the first set pipe temperature. The third preset temperature value is, for example, temperature T. 预设值3 The second set tube temperature is temperature T1.

[0071] Step S420: If the following conditions are met, i.e., if it is determined that the current indoor ambient temperature of the air conditioner is greater than the third preset temperature value, or if it is determined that the current indoor heat exchanger pipe temperature of the air conditioner is greater than the second set pipe temperature, then the already activated electric auxiliary heating component is controlled to shut down.

[0072] Step S430: If the conditions are not met (i.e., if the current indoor ambient temperature of the air conditioner is determined to be less than or equal to a third preset temperature value, and the current indoor heat exchanger pipe temperature of the air conditioner is determined to be less than or equal to a second set pipe temperature), then the currently activated electric auxiliary heating component remains in its active state. After a first set time, it is re-determined whether the current indoor ambient temperature of the air conditioner is greater than the third preset temperature value, or whether the current indoor heat exchanger pipe temperature of the air conditioner is greater than the second set pipe temperature. If the conditions are met, the activated electric auxiliary heating component is controlled to shut down. If the conditions are not met, the activated electric auxiliary heating component is controlled to shut down, and simultaneously, the operating frequency of the compressor is increased to the preset maximum frequency of the compressor, and the compressor is controlled to operate at the preset maximum frequency. The first set time is, for example, time m0.

[0073] Specifically, Figure 9 This is a flowchart illustrating an embodiment of the logic for shutting down the electric auxiliary heating function of an air conditioner. Figure 9 As shown, the shutdown logic for the electric auxiliary heating function of the air conditioner includes:

[0074] Step 21: After the electric auxiliary heating function of the air conditioner is turned on, obtain the current indoor ambient temperature and the indoor heat exchanger pipe temperature, and execute step 22, that is, control the electric auxiliary heating function of the air conditioner to turn off according to the current indoor ambient temperature and the indoor heat exchanger pipe temperature.

[0075] Step 22: Based on the current indoor ambient temperature and the different temperature ranges of the indoor heat exchanger pipe temperature, control the air conditioner's electric auxiliary heating function to turn off. See steps 221 and 222 for details.

[0076] Step 221: When the indoor ambient temperature is greater than the temperature T 预设值3 If the indoor heat exchanger pipe temperature exceeds temperature T1, turn off the air conditioner's electric auxiliary heating function. Temperature T... 预设值3 The recommended value is 27℃, and the recommended value for temperature T1 is 50℃.

[0077] Step 222: When the indoor ambient temperature is ≤T 预设值3 When the indoor heat exchanger pipe temperature is ≤ temperature T1, the air conditioner's electric auxiliary heating function remains on. After the air conditioner's electric auxiliary heating function has been on for time m0, the current indoor ambient temperature and indoor heat exchanger pipe temperature are checked again to see if they meet the above requirements. If they do, the air conditioner's electric auxiliary heating function is turned off; otherwise, step 23 is executed to control the increase of the indoor ambient temperature in conjunction with the compressor's operating frequency. The recommended value for time m0 is 30 minutes.

[0078] Step 23: Control the indoor ambient temperature increase based on the compressor's operating frequency. Specifically, turn off the air conditioner's electric auxiliary heating function and simultaneously increase the compressor's operating frequency to the highest operable frequency. After the compressor has been running at the highest operating frequency for a time m1, proceed to step 24, which checks whether the current indoor heat exchanger pipe temperature has decreased. The recommended value for time m1 is 10 minutes.

[0079] In some embodiments, step S140, after controlling the electric auxiliary heating component to turn on, combines the current indoor ambient temperature of the air conditioner and the current indoor heat exchanger pipe temperature of the air conditioner to control the operation of the turned-on electric auxiliary heating component and control the operating frequency of the compressor 10, and further includes: a second process of controlling the operation of the turned-on electric auxiliary heating component in combination with the operating frequency of the compressor 10.

[0080] The following is combined with Figure 5 The flowchart shown is a schematic diagram of an embodiment of the method of the present invention, which controls the operation of the activated electric auxiliary heating component in conjunction with the operating frequency of the compressor 10. The specific process of controlling the operation of the activated electric auxiliary heating component in conjunction with the operating frequency of the compressor 10 in step S140 is further explained, including steps S510 to S530.

[0081] Step S510: After controlling the compressor to run at the compressor's preset highest frequency for a second set time, determine whether the current indoor heat exchanger pipe temperature of the air conditioner has decreased; wherein, the second set time is less than the first set time. The second set time is, for example, time m1.

[0082] Step S520: If it is determined that the current indoor heat exchanger pipe temperature of the air conditioner has decreased, the electric auxiliary heating component, which was turned on and then off, is restarted to restore its operating state to the state before it was turned off. The compressor is then controlled to run at its preset maximum frequency. After that, the process returns to the previous step. After the electric auxiliary heating component is turned on and off again, the current indoor ambient temperature and the current indoor heat exchanger pipe temperature of the air conditioner are combined to control the operation of the restarted electric auxiliary heating component and control the operating frequency of the compressor 10.

[0083] Step S530: If it is determined that the current indoor heat exchanger pipe temperature of the air conditioner has not decreased, the electric auxiliary heating component, which was turned on and then off, remains closed, and the compressor continues to be controlled to run at the preset maximum frequency. Then, while keeping the electric auxiliary heating component closed, the compressor is controlled to operate normally in heating mode according to the normal heating logic of the heating mode. That is, the compressor is controlled to run according to the normal operation mode of the air conditioner in heating mode. Specifically, it may be: determining whether the indoor temperature difference of the air conditioner is less than a second preset temperature threshold; if so, the compressor is controlled to run at a reduced frequency, and then the process is returned to re-determine whether the indoor temperature difference of the air conditioner is less than the second preset temperature threshold; otherwise, the compressor continues to be controlled to run at the preset maximum frequency, and then the process is returned to re-determine whether the indoor temperature difference of the air conditioner is less than the second preset temperature threshold.

[0084] Specifically, such as Figure 9 As shown, the shutdown logic for the electric auxiliary heating function of the air conditioner also includes:

[0085] Step 24: Detect whether the current indoor heat exchanger tube temperature has decreased: If yes, proceed to step 241; otherwise, proceed to step 242. For example, a temperature sensor is installed on the indoor heat exchanger 50 to detect the indoor heat exchanger tube temperature. By comparing the current indoor heat exchanger tube temperature with the temperature before the electric auxiliary heating was turned off, it can be confirmed whether the indoor heat exchanger tube temperature has decreased. If the difference is large, it indicates that the current indoor heat exchanger tube temperature has decreased.

[0086] Step 241: If the indoor heat exchanger temperature decreases, restart and run the air conditioner's electric auxiliary heating function. Specifically, restarting and running the air conditioner's electric auxiliary heating function can be done by restarting and running it for a time *m0* (e.g., 5 minutes) based on the number of electric auxiliary heating elements that were active before the function was turned off. Then, return to step 21 to re-acquire the current indoor ambient temperature and the indoor heat exchanger pipe temperature for cyclical control. Here, running the electric auxiliary heating function for *m0* (e.g., 5 minutes) after restarting before returning to step 21 for judgment avoids frequent switching of the electric auxiliary heating.

[0087] Step 242: If the indoor heat exchanger pipe temperature rises, keep the air conditioner's electric auxiliary heating function off, and the compressor frequency will run at the increased frequency. After the compressor runs at the increased frequency for a period of time, determine whether the compressor needs to reduce its frequency based on the difference between the indoor ambient temperature and the user-set temperature. For example, if the difference between the indoor ambient temperature and the user-set temperature is less than or equal to the third preset temperature threshold (e.g., 2°C), control the compressor to reduce its frequency. If the difference between the indoor ambient temperature and the user-set temperature is greater than the third preset temperature threshold, control the compressor to continue running at the highest operating frequency.

[0088] By adopting the solution of the present invention, when the outdoor ambient temperature is low and the air conditioner is turned on for heating, after the electric auxiliary heating function of the air conditioner has been turned on for a period of time, the operating frequency of the compressor is increased and the electric auxiliary heating function of the air conditioner is turned off, thereby reducing power consumption while meeting the user's heating needs; thus, by optimizing the control mode of the electric auxiliary heating function of the air conditioner, the energy consumption of the air conditioner is reduced while meeting the user's comfort needs.

[0089] The technical solution of this embodiment involves installing a set of electric auxiliary heating elements at the indoor heat exchanger of the air conditioner to realize the electric auxiliary heating function of the air conditioner. This set of electric auxiliary heating elements includes at least two parallel electric auxiliary heating elements, and each electric auxiliary heating element can be individually turned on and off. When the air conditioner is in heating mode, the indoor ambient temperature and the indoor heat exchanger pipe temperature are detected. Based on the indoor ambient temperature, the difference between the indoor ambient temperature and the set temperature, and the indoor heat exchanger pipe temperature, it is determined whether the electric auxiliary heating function of the air conditioner needs to be activated. After determining that the electric auxiliary heating function needs to be activated, further adjustments are made based on the current... The number of electric auxiliary heating elements to be activated in the electric auxiliary heating function is determined by the indoor ambient temperature. Simultaneously, after activating the determined number of electric auxiliary heating elements, the system determines whether the electric auxiliary heating function of the air conditioner needs to be turned off based on the indoor ambient temperature and the indoor heat exchanger pipe temperature. The compressor's operating frequency is adjusted accordingly. Thus, by combining the indoor ambient temperature and the indoor heat exchanger pipe temperature during the air conditioner's heating operation to control the activation and deactivation of the air conditioner's electric auxiliary heating function and the compressor's operating frequency, the control mode of the air conditioner's electric auxiliary heating function is optimized. This allows the air conditioner to maximize energy saving and user comfort while ensuring safety.

[0090] According to an embodiment of the present invention, a control device for an air conditioner corresponding to the control method for an air conditioner is also provided. See also Figure 6The diagram shows a structural schematic of an embodiment of the device of the present invention. The air conditioner has an indoor unit and an outdoor unit; the indoor unit has an indoor heat exchanger 50 and an electric auxiliary heating assembly; the electric auxiliary heating assembly includes: electric auxiliary heating elements, the number of which is two or more, such as a first electric auxiliary heating element 51 and a second electric auxiliary heating element 52, the two or more electric auxiliary heating elements are arranged in parallel and can be turned on and off independently; the outdoor unit has a compressor 10.

[0091] Specifically, Figure 7 This is a structural schematic diagram of one embodiment of an air conditioner. Figure 7 The air conditioner shown comprises an indoor unit and an outdoor unit. The indoor unit consists of an indoor heat exchanger 50, a first electric auxiliary heating element 51 (i.e., electric auxiliary heater 1), and a second electric auxiliary heating element 52 (i.e., electric auxiliary heater 2). The outdoor unit consists of an outdoor heat exchanger 30, a compressor 10, a four-way valve 20, and an electronic expansion valve 40. The exhaust port of the compressor 10 is connected to the first port of the four-way valve 20. The second port of the four-way valve 20, after passing through the outdoor heat exchanger 30, the electronic expansion valve 40, and the indoor heat exchanger 50, is connected to the fourth port of the four-way valve 20. The third port of the four-way valve 20 returns to the suction port of the compressor 10.

[0092] The first electric auxiliary heating element 51 (i.e., electric auxiliary heating 1) and the second electric auxiliary heating element 52 (i.e., electric auxiliary heating 2) are arranged in parallel. Specifically, the first electric auxiliary heating element 51 (i.e., electric auxiliary heating 1) and the second electric auxiliary heating element 52 (i.e., electric auxiliary heating 2) can be arranged in parallel on the air outlet side of the indoor heat exchanger 50. Preferably, the first electric auxiliary heating element 51 (i.e., electric auxiliary heating 1) and the second electric auxiliary heating element 52 (i.e., electric auxiliary heating 2) can be arranged in parallel inside the air outlet of the indoor unit to heat the air at the air outlet of the indoor unit, thereby increasing the air outlet temperature of the indoor unit. Furthermore, the first electric auxiliary heating element 51 (i.e., electric auxiliary heating 1) and the second electric auxiliary heating element 52 (i.e., electric auxiliary heating 2) can be controlled to turn on and off separately; that is, the first electric auxiliary heating element 51 (i.e., electric auxiliary heating 1) and the second electric auxiliary heating element 52 (i.e., electric auxiliary heating 2) can be controlled to turn on and off separately.

[0093] In the solution of the present invention, such as Figure 6 As shown, the control device of the air conditioner includes: an acquisition unit 102 and a control unit 104.

[0094] The acquisition unit 102 is configured to: after the air conditioner is turned on in heating mode, the electric auxiliary heating component is in a default off state; when the air conditioner is running in heating mode and the electric auxiliary heating component is not disabled, acquire the indoor ambient temperature of the air conditioner and record it as the current indoor ambient temperature of the air conditioner; acquire the pipe temperature of the indoor heat exchanger 50 and record it as the current indoor heat exchanger pipe temperature of the air conditioner; and acquire the target temperature of the air conditioner. The specific functions and processing of the acquisition unit 102 are described in step S110.

[0095] The control unit 104 is configured to determine whether the electric auxiliary heating component needs to be activated based on the current indoor ambient temperature and the target temperature of the air conditioner, and in conjunction with the current indoor heat exchanger pipe temperature of the air conditioner. The specific functions and processing of this control unit 104 are described in step S120.

[0096] In some embodiments, the control unit 104 determines whether the electric auxiliary heating component needs to be activated based on the current indoor ambient temperature and the target temperature of the air conditioner, and in conjunction with the current indoor heat exchanger pipe temperature of the air conditioner, including:

[0097] The control unit 104 is further configured to determine the temperature difference between the target temperature of the air conditioner and the current indoor ambient temperature of the air conditioner, and denoted as the indoor temperature difference of the air conditioner. The specific functions and processing of the control unit 104 are further described in step S210.

[0098] The control unit 104 is further configured to determine whether the current indoor ambient temperature of the air conditioner is lower than a first preset temperature value, and whether the indoor temperature difference of the air conditioner is greater than a first preset temperature threshold. The specific functions and processing of the control unit 104 are further described in step S220. The first preset temperature value is, for example, temperature T. 预设值1 The first preset temperature threshold is such as temperature Δt1.

[0099] The control unit 104 is further configured to determine that the electric auxiliary heating assembly needs to be activated if the conditions are met. The specific functions and processing of the control unit 104 are further described in step S230.

[0100] The control unit 104 is further configured to, if the condition is not met, determine whether the current indoor heat exchanger pipe temperature of the air conditioner is greater than or equal to a first set pipe temperature; if so, determine that the electric auxiliary heating component does not need to be turned on and keep the electric auxiliary heating component in a closed state; otherwise, determine that the electric auxiliary heating component needs to be turned on. The specific functions and processing of this control unit 104 are further described in step S240. The first set pipe temperature is, for example, temperature T0.

[0101] Specifically, Figure 8 This is a flowchart illustrating an embodiment of the activation logic for the electric auxiliary heating function of an air conditioner. Figure 8 As shown, the activation logic of the air conditioner's electric auxiliary heating function includes:

[0102] Step 11: During the heating operation of the air conditioner, when it is detected that the user has not set the electric auxiliary heating function of the air conditioner to be turned off, the current indoor ambient temperature is obtained and the difference between the indoor ambient temperature and the user-set temperature is calculated. Then, step 12 is executed to determine whether the electric auxiliary heating function of the air conditioner needs to be turned on based on the current indoor ambient temperature of the air conditioner, the difference between the indoor ambient temperature and the user-set temperature, and the indoor heat exchanger temperature.

[0103] Step 12: Determine if the indoor ambient temperature of the air conditioner is less than the temperature T. 预设值1 Furthermore, if the difference between the indoor ambient temperature and the user-set temperature is greater than temperature Δt1: if so, proceed to step 13 to determine the number of electric auxiliary heating elements that need to be activated based on the indoor heat exchanger temperature; otherwise, keep the air conditioner's electric auxiliary heating function off. Wherein, temperature T... 预设值1 The recommended value for temperature Δt1 is 25℃. Temperatures above this indicate that the indoor temperature is relatively high, and the user's heating comfort needs can be met without turning on the air conditioner's electric auxiliary heating function. The recommended value for temperature Δt1 is 3℃. Temperatures below this indicate that the indoor temperature is close to the user's set temperature, and the air conditioner's electric auxiliary heating function does not need to be turned on.

[0104] Step 13: When the indoor ambient temperature detected by the air conditioner is <T 预设值1 When the difference between the indoor ambient temperature and the user-set temperature is greater than Δt1, the pipe temperature of the indoor heat exchanger 50 is further obtained as the indoor heat exchanger temperature, and step 14 is executed, that is, in combination with the indoor heat exchanger temperature, it is confirmed whether the electric auxiliary heating function of the air conditioner needs to be turned on, and the number of electric auxiliary heating elements that need to be turned on when the electric auxiliary heating function of the air conditioner needs to be turned on is determined.

[0105] Step 14: Based on the different temperature ranges of the indoor heat exchanger, determine whether the electric auxiliary heating function of the air conditioner needs to be turned on, and determine the number of electric auxiliary heating elements that need to be turned on when the electric auxiliary heating function of the air conditioner needs to be turned on. For details, please refer to Step 141 and Step 142.

[0106] Step 141: When the indoor heat exchanger temperature is greater than or equal to T0, the air conditioner's electric auxiliary heating function remains off. The recommended value for temperature T0 is 45℃.

[0107] During the heating operation of the air conditioner, the system obtains the current indoor ambient temperature, the difference between the indoor ambient temperature and the user-set temperature, and the indoor heat exchanger temperature to determine whether the air conditioner's electric auxiliary heating function needs to be activated. Once the electric auxiliary heating function is activated and in use, it is then controlled to deactivate based on the current indoor ambient temperature and the indoor heat exchanger pipe temperature. In this way, by optimizing the control mode of the air conditioner's electric auxiliary heating function, the air conditioner's energy consumption is reduced while meeting the user's comfort needs.

[0108] The control unit 104 is further configured to, when it is determined that the electric auxiliary heating assembly needs to be activated, determine the number of electric auxiliary heating elements in the electric auxiliary heating assembly that need to be activated based on the current indoor ambient temperature of the air conditioner; and, based on the determined number of electric auxiliary heating elements in the electric auxiliary heating assembly that need to be activated, control the activation of the corresponding number of electric auxiliary heating elements in the electric auxiliary heating assembly, thereby controlling the activation of the electric auxiliary heating assembly. The specific functions and processing of this control unit 104 are further described in step S130.

[0109] In some embodiments, the control unit 104, upon determining that the electric auxiliary heating assembly needs to be activated, determines the number of electric auxiliary heating elements in the electric auxiliary heating assembly that need to be activated based on the current indoor ambient temperature of the air conditioner, including:

[0110] The control unit 104 is further configured to determine whether the current indoor ambient temperature of the air conditioner is greater than or equal to a second preset temperature value when the current indoor ambient temperature of the air conditioner is less than a first preset temperature value; the second preset temperature value is less than the first preset temperature value. The specific functions and processing of this control unit 104 are further described in step S310. The second preset temperature value is, for example, temperature T. 预设值2 .

[0111] The control unit 104 is further configured to, if it is determined that the current indoor ambient temperature of the air conditioner is greater than or equal to a second preset temperature value, determine the number of electric auxiliary heating elements in the electric auxiliary heating assembly that need to be activated as a first preset number; then, based on the determined number of electric auxiliary heating elements in the electric auxiliary heating assembly that need to be activated, i.e., the first preset number, control the activation of the first preset number of electric auxiliary heating elements in the electric auxiliary heating assembly to control the activation of the electric auxiliary heating assembly. The specific functions and processing of this control unit 104 are further described in step S320. The first preset number is, for example, one.

[0112] The control unit 104 is further configured to, if it is determined that the current indoor ambient temperature of the air conditioner is less than a second preset temperature value, determine the number of electric auxiliary heating elements in the electric auxiliary heating assembly that need to be activated as a second preset number; the second preset number is greater than a first preset number; and then, based on the determined number of electric auxiliary heating elements in the electric auxiliary heating assembly that need to be activated, i.e., the second preset number, control the activation of the second preset number of electric auxiliary heating elements in the electric auxiliary heating assembly to control the activation of the electric auxiliary heating assembly. The specific functions and processing of this control unit 104 are also described in step S330. The second preset number is two.

[0113] Specifically, such as Figure 8 As shown, the activation logic of the electric auxiliary heating function of the air conditioner also includes: in step 14, step 142, when the indoor heat exchanger temperature is < T0, it is determined that the electric auxiliary heating function of the air conditioner needs to be activated, and the number of electric auxiliary heating elements activated in the electric auxiliary heating function is determined according to the current indoor ambient temperature. For details, please refer to steps 1421 and 1422.

[0114] Step 1421: When the indoor ambient temperature is ≥ temperature T 预设值2 At that time, only the first electric auxiliary heating element 51 (i.e., electric auxiliary heating 1) is activated. Among them, T 预设值 The recommended value for 2 is 10℃.

[0115] Step 1422, when the indoor ambient temperature < T 预设值2 At the same time, the first electric auxiliary heating element 51 (i.e., electric auxiliary heating 1) and the second electric auxiliary heating element 52 (i.e., electric auxiliary heating 2) are turned on.

[0116] In the present invention, by setting multiple parallel electric auxiliary heating elements that can be turned on and off individually, such as the first electric auxiliary heating element 51 (i.e., electric auxiliary heating 1) and the second electric auxiliary heating element 52 (i.e., electric auxiliary heating 2), when the air conditioner is in heating mode, different electric auxiliary heating elements can be turned on according to different indoor ambient temperatures. For example, when the indoor ambient temperature is high, turning on one electric auxiliary heating element can meet the user's heating comfort needs, while when the indoor ambient temperature is low and the user needs to raise the indoor ambient temperature as soon as possible, two or more electric auxiliary heating elements can be turned on, making the use of the electric auxiliary heating function of the air conditioner more flexible.

[0117] The control unit 104 is further configured to, after controlling the electric auxiliary heating component to turn on, combine the current indoor ambient temperature of the air conditioner and the current indoor heat exchanger pipe temperature of the air conditioner to control the operation of the turned-on electric auxiliary heating component and control the operating frequency of the compressor 10. The specific functions and processing of this control unit 104 are further described in step S140.

[0118] This invention proposes a control scheme for the electric auxiliary heating function of an air conditioner. The scheme involves setting up two or more parallel electric auxiliary heating elements. During air conditioner heating operation, the indoor ambient temperature and the indoor heat exchanger pipe temperature are acquired, and the difference between the set temperature and the ambient temperature is calculated. Based on the indoor ambient temperature, the difference between the indoor ambient temperature and the set temperature, and the indoor heat exchanger pipe temperature, it is determined whether to activate the air conditioner's electric auxiliary heating function. After determining that the electric auxiliary heating function needs to be activated, the number of electric auxiliary heating elements to be activated is determined based on the current indoor ambient temperature. Simultaneously, after the air conditioner's electric auxiliary heating function is activated and put into use, it is determined whether to deactivate the air conditioner's electric auxiliary heating function based on the indoor ambient temperature and the indoor heat exchanger pipe temperature, and the compressor's operating frequency is adjusted synchronously to enable the air conditioner to achieve greater energy savings while meeting the user's heating comfort requirements.

[0119] In some embodiments, after controlling the electric auxiliary heating component to turn on, the control unit 104, in conjunction with the current indoor ambient temperature of the air conditioner and the current indoor heat exchanger pipe temperature of the air conditioner, controls the operation of the turned-on electric auxiliary heating component and controls the operating frequency of the compressor 10. This includes a first process of controlling the operation of the turned-on electric auxiliary heating component in conjunction with the current indoor ambient temperature of the air conditioner and the current indoor heat exchanger pipe temperature of the air conditioner, as follows:

[0120] The control unit 104 is further configured to determine whether the current indoor ambient temperature of the air conditioner is greater than a third preset temperature value, or whether the current indoor heat exchanger pipe temperature of the air conditioner is greater than a second set pipe temperature; the third preset temperature value is greater than a first preset temperature value, and the second set pipe temperature is greater than the first set pipe temperature. The specific functions and processing of this control unit 104 are further described in step S410. The third preset temperature value is, for example, temperature T. 预设值3 The second set tube temperature is temperature T1.

[0121] The control unit 104 is further configured to shut down the activated electric auxiliary heating component if either the current indoor ambient temperature of the air conditioner is determined to be greater than a third preset temperature value, or the current indoor heat exchanger pipe temperature of the air conditioner is determined to be greater than a second set pipe temperature. The specific functions and processing of this control unit 104 are further described in step S420.

[0122] The control unit 104 is further configured to, if the following conditions are not met—that is, if it is determined that the current indoor ambient temperature of the air conditioner is less than or equal to a third preset temperature value, and it is determined that the current indoor heat exchanger pipe temperature of the air conditioner is less than or equal to a second set pipe temperature—maintain the current on state of the already activated electric auxiliary heating component, and after a first set time, re-determine whether the current indoor ambient temperature of the air conditioner is greater than the third preset temperature value, or whether the current indoor heat exchanger pipe temperature of the air conditioner is greater than the second set pipe temperature: if the conditions are met, control the already activated electric auxiliary heating component to turn off; if the conditions are not met, control the already activated electric auxiliary heating component to turn off, and simultaneously increase the operating frequency of the compressor to the preset maximum frequency of the compressor, and control the compressor to operate at the preset maximum frequency of the compressor. The specific functions and processing of this control unit 104 are also described in step S430. The first set time is, for example, time m0.

[0123] Specifically, Figure 9 This is a flowchart illustrating an embodiment of the logic for shutting down the electric auxiliary heating function of an air conditioner. Figure 9 As shown, the shutdown logic for the electric auxiliary heating function of the air conditioner includes:

[0124] Step 21: After the electric auxiliary heating function of the air conditioner is turned on, obtain the current indoor ambient temperature and the indoor heat exchanger pipe temperature, and execute step 22, that is, control the electric auxiliary heating function of the air conditioner to turn off according to the current indoor ambient temperature and the indoor heat exchanger pipe temperature.

[0125] Step 22: Based on the current indoor ambient temperature and the different temperature ranges of the indoor heat exchanger pipe temperature, control the air conditioner's electric auxiliary heating function to turn off. See steps 221 and 222 for details.

[0126] Step 221: When the indoor ambient temperature is greater than the temperature T 预设值3 If the indoor heat exchanger pipe temperature exceeds temperature T1, turn off the air conditioner's electric auxiliary heating function. Temperature T... 预设值3 The recommended value is 27℃, and the recommended value for temperature T1 is 50℃.

[0127] Step 222: When the indoor ambient temperature is ≤T 预设值3 When the indoor heat exchanger pipe temperature is ≤ temperature T1, the air conditioner's electric auxiliary heating function remains on. After the air conditioner's electric auxiliary heating function has been on for time m0, the current indoor ambient temperature and indoor heat exchanger pipe temperature are checked again to see if they meet the above requirements. If they do, the air conditioner's electric auxiliary heating function is turned off; otherwise, step 23 is executed to control the increase of the indoor ambient temperature in conjunction with the compressor's operating frequency. The recommended value for time m0 is 30 minutes.

[0128] Step 23: Control the indoor ambient temperature increase based on the compressor's operating frequency. Specifically, turn off the air conditioner's electric auxiliary heating function and simultaneously increase the compressor's operating frequency to the highest operable frequency. After the compressor has been running at the highest operating frequency for a time m1, proceed to step 24, which checks whether the current indoor heat exchanger pipe temperature has decreased. The recommended value for time m1 is 10 minutes.

[0129] In some embodiments, after the control unit 104 controls the electric auxiliary heating component to turn on, it combines the current indoor ambient temperature of the air conditioner and the current indoor heat exchanger pipe temperature of the air conditioner to control the operation of the turned-on electric auxiliary heating component and control the operating frequency of the compressor 10. The control unit further includes a second process of controlling the operation of the turned-on electric auxiliary heating component in conjunction with the operating frequency of the compressor 10, as follows:

[0130] The control unit 104 is further configured to determine whether the current indoor heat exchanger pipe temperature of the air conditioner has decreased after controlling the compressor to run at the compressor's preset highest frequency for a second set time; wherein the second set time is less than the first set time. The specific functions and processing of the control unit 104 are further described in step S510. The second set time is, for example, time m1.

[0131] The control unit 104 is further configured to, if it is determined that the current indoor heat exchanger pipe temperature of the air conditioner has decreased, control the electric auxiliary heating component, which has been turned on and then off, to restart, so that the operating state of the electric auxiliary heating component returns to the operating state before it was turned off, and continue to control the compressor to run at the preset maximum frequency. Then, it returns to the previous state, so that after the electric auxiliary heating component, which has been turned on and then off, restarts, it re-combines the current indoor ambient temperature and the current indoor heat exchanger pipe temperature of the air conditioner to control the operation of the restarted electric auxiliary heating component and control the operating frequency of the compressor 10. The specific functions and processing of this control unit 104 are further described in step S520.

[0132] The control unit 104 is further configured to, if it is determined that the current indoor heat exchanger pipe temperature of the air conditioner has not decreased, keep the electric auxiliary heating component, which was turned on and then off, closed, and continue to control the compressor to run at the preset maximum frequency. Then, while keeping the electric auxiliary heating component closed, control the compressor to operate normally in heating mode according to the normal heating logic of the heating mode, that is, control the compressor to operate according to the normal operating mode of the air conditioner in heating mode. Specifically, this can involve: determining whether the indoor temperature difference of the air conditioner is less than a second preset temperature threshold; if so, controlling the compressor to operate at a reduced frequency, and then returning to re-determine whether the indoor temperature difference of the air conditioner is less than the second preset temperature threshold; otherwise, continuing to control the compressor to run at the preset maximum frequency, and then returning to re-determine whether the indoor temperature difference of the air conditioner is less than the second preset temperature threshold. The specific functions and processing of this control unit 104 are also described in step S530.

[0133] Specifically, such as Figure 9 As shown, the shutdown logic for the electric auxiliary heating function of the air conditioner also includes:

[0134] Step 24: Check if the current indoor heat exchanger tube temperature has decreased: if so, proceed to step 241; otherwise, proceed to step 242.

[0135] Step 241: If the indoor heat exchanger temperature drops, restart and run the air conditioner's electric auxiliary heating function. Specifically, restarting and running the air conditioner's electric auxiliary heating function can be done by restarting and running the air conditioner's electric auxiliary heating function for a time of mo (e.g., 5 minutes) based on the number of electric auxiliary heating elements that were turned on before the air conditioner's electric auxiliary heating function was turned off. After that, return to step 21, so that after the air conditioner's electric auxiliary heating function is restarted, the current indoor ambient temperature and the indoor heat exchanger pipe temperature can be obtained again for cyclic control.

[0136] Step 242: If the indoor heat exchanger pipe temperature rises, keep the air conditioner's electric auxiliary heating function off, and the compressor frequency will run at the increased frequency. After the compressor runs at the increased frequency for a period of time, determine whether the compressor needs to reduce its frequency based on the difference between the indoor ambient temperature and the user-set temperature. For example, if the difference between the indoor ambient temperature and the user-set temperature is less than or equal to the third preset temperature threshold (e.g., 2°C), control the compressor to reduce its frequency. If the difference between the indoor ambient temperature and the user-set temperature is greater than the third preset temperature threshold, control the compressor to continue running at the highest operating frequency.

[0137] By adopting the solution of the present invention, when the outdoor ambient temperature is low and the air conditioner is turned on for heating, after the electric auxiliary heating function of the air conditioner has been turned on for a period of time, the operating frequency of the compressor is increased and the electric auxiliary heating function of the air conditioner is turned off, thereby reducing power consumption while meeting the user's heating needs; thus, by optimizing the control mode of the electric auxiliary heating function of the air conditioner, the energy consumption of the air conditioner is reduced while meeting the user's comfort needs.

[0138] Since the processing and functions implemented by the device in this embodiment are basically the same as the embodiments, principles and examples of the aforementioned methods, any details not covered in the description of this embodiment can be found in the relevant descriptions in the aforementioned embodiments, and will not be repeated here.

[0139] The technical solution of this invention involves installing a set of electric auxiliary heating elements at the indoor heat exchanger of an air conditioner to realize the electric auxiliary heating function of the air conditioner. This set of electric auxiliary heating elements includes at least two parallel electric auxiliary heating elements, each of which can be individually turned on and off. When the air conditioner is in heating mode, the indoor ambient temperature and the indoor heat exchanger pipe temperature are detected. Based on the indoor ambient temperature, the difference between the indoor ambient temperature and the set temperature, and the indoor heat exchanger pipe temperature, it is determined whether the electric auxiliary heating function of the air conditioner needs to be activated. After determining that the electric auxiliary heating function needs to be activated, the number of electric auxiliary heating elements to be activated is determined based on the current indoor ambient temperature. Simultaneously, after activating the determined number of electric auxiliary heating elements, it is determined whether the electric auxiliary heating function of the air conditioner needs to be deactivated based on the indoor ambient temperature and the indoor heat exchanger pipe temperature, and the compressor operating frequency is adjusted synchronously to optimize the control mode of the air conditioner's electric auxiliary heating function. This reduces the energy consumption of the air conditioner while meeting the requirements of safety and user comfort.

[0140] According to an embodiment of the present invention, an air conditioner corresponding to a control device for an air conditioner is also provided. This air conditioner may include the control device for an air conditioner described above.

[0141] Since the processing and functions implemented by the air conditioner in this embodiment are basically the same as the embodiments, principles and examples of the aforementioned devices, any details not covered in the description of this embodiment can be found in the relevant descriptions in the aforementioned embodiments, and will not be repeated here.

[0142] The technical solution of this invention involves installing a set of electric auxiliary heating elements at the indoor heat exchanger of an air conditioner to realize the electric auxiliary heating function of the air conditioner. This set of electric auxiliary heating elements includes at least two parallel electric auxiliary heating elements, each of which can be individually turned on and off. When the air conditioner is in heating mode, the indoor ambient temperature and the indoor heat exchanger pipe temperature are detected. Based on the indoor ambient temperature, the difference between the indoor ambient temperature and the set temperature, and the indoor heat exchanger pipe temperature, it is determined whether the electric auxiliary heating function of the air conditioner needs to be activated. After determining that the electric auxiliary heating function needs to be activated, the number of electric auxiliary heating elements to be activated in the electric auxiliary heating function is determined based on the current indoor ambient temperature. Simultaneously, after activating the determined number of electric auxiliary heating elements, it is determined whether the electric auxiliary heating function of the air conditioner needs to be deactivated based on the indoor ambient temperature and the indoor heat exchanger pipe temperature, and the compressor operating frequency is adjusted synchronously to reduce power consumption while meeting the user's heating needs.

[0143] According to an embodiment of the present invention, a storage medium corresponding to a control method for an air conditioner is also provided, the storage medium including a stored program, wherein the program controls the device where the storage medium is located to execute the control method for the air conditioner described above when it is executed.

[0144] Since the processing and functions implemented by the storage medium in this embodiment are basically the same as the embodiments, principles and examples of the aforementioned methods, any details not covered in this embodiment can be found in the relevant descriptions in the aforementioned embodiments, and will not be repeated here.

[0145] The technical solution of this invention involves installing a set of electric auxiliary heating elements at the indoor heat exchanger of an air conditioner to realize the electric auxiliary heating function of the air conditioner. This set of electric auxiliary heating elements includes at least two parallel electric auxiliary heating elements, each of which can be individually turned on and off. When the air conditioner is in heating mode, the indoor ambient temperature and the indoor heat exchanger pipe temperature are detected. Based on the indoor ambient temperature, the difference between the indoor ambient temperature and the set temperature, and the indoor heat exchanger pipe temperature, it is determined whether the electric auxiliary heating function of the air conditioner needs to be activated. After determining that the electric auxiliary heating function needs to be activated, the number of electric auxiliary heating elements to be activated is determined based on the current indoor ambient temperature. Simultaneously, after activating the determined number of electric auxiliary heating elements, it is determined whether the electric auxiliary heating function of the air conditioner needs to be deactivated based on the indoor ambient temperature and the indoor heat exchanger pipe temperature, and the compressor operating frequency is adjusted synchronously to enable the air conditioner to achieve greater energy savings while meeting safety and user heating comfort requirements.

[0146] In summary, it is readily understood by those skilled in the art that, without conflict, the aforementioned advantageous methods can be freely combined and superimposed.

[0147] The above description is merely an embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A control method of an air conditioner, characterized by, The air conditioner has an indoor unit and an outdoor unit; the indoor unit has an indoor heat exchanger and an electric auxiliary heating assembly; The electric auxiliary heating assembly includes electric auxiliary heating elements, the number of the electric auxiliary heating elements is two or more, the two or more electric auxiliary heating elements are arranged in parallel and can be individually turned on and off; the outdoor unit has a compressor; and the control method of the air conditioner includes: In the case that the air conditioner operates in a heating mode, the indoor ambient temperature of the air conditioner is obtained, denoted as the current indoor ambient temperature of the air conditioner; the pipe temperature of the indoor heat exchanger is obtained, denoted as the current indoor heat exchanger pipe temperature of the air conditioner; and the target temperature of the air conditioner is obtained; According to the current indoor ambient temperature of the air conditioner and the target temperature of the air conditioner, and in combination with the current indoor heat exchanger pipe temperature of the air conditioner, it is determined whether the electric auxiliary heating assembly needs to be turned on; In the case that it is determined that the electric auxiliary heating assembly needs to be turned on, the number of electric auxiliary heating elements in the electric auxiliary heating assembly that need to be turned on is determined according to the current indoor ambient temperature of the air conditioner; and the corresponding number of electric auxiliary heating elements in the electric auxiliary heating assembly is controlled to be turned on according to the determined number of electric auxiliary heating elements in the electric auxiliary heating assembly that need to be turned on, so as to control the electric auxiliary heating assembly to be turned on; After the electric auxiliary heating assembly is controlled to be turned on, if the current indoor ambient temperature of the air conditioner is not greater than a third preset temperature value, or the current indoor heat exchanger pipe temperature of the air conditioner is not greater than a second set pipe temperature, the current turned-on state of the electric auxiliary heating assembly is maintained, and after a first set time, it is determined again whether the current indoor ambient temperature of the air conditioner is greater than the third preset temperature value, or the current indoor heat exchanger pipe temperature of the air conditioner is greater than the second set pipe temperature; if yes, the turned-on electric auxiliary heating assembly is controlled to be turned off; if no, the turned-on electric auxiliary heating assembly is controlled to be turned off, and meanwhile, the operating frequency of the compressor is increased to the preset highest frequency of the compressor for operation, and the compressor is controlled to operate at the preset highest frequency of the compressor; After the compressor is controlled to operate at the preset highest frequency of the compressor for a second set time, which is less than the first set time, it is determined whether the current indoor heat exchanger pipe temperature of the air conditioner has been reduced; If it is determined that the current indoor heat exchanger pipe temperature of the air conditioner has been reduced, the electric auxiliary heating assembly that is turned on and then turned off is controlled to be turned on again, so as to restore the operating state of the electric auxiliary heating assembly to the operating state before the electric auxiliary heating assembly is turned off, and the compressor is continuously controlled to operate at the preset highest frequency of the compressor, and then, the method returns to the step of controlling the electric auxiliary heating assembly that is turned on and then turned off to be turned on again, and then, in combination with the current indoor ambient temperature of the air conditioner and the current indoor heat exchanger pipe temperature of the air conditioner, the operating state of the electric auxiliary heating assembly that is turned on again is controlled, and the operating frequency of the compressor is controlled. If it is determined that the current indoor heat exchanger pipe temperature of the air conditioner is not reduced, the electric auxiliary heating assembly that is turned on and then turned off is kept turned off, and the compressor is controlled to operate at the preset highest frequency of the compressor, and then the compressor is controlled to operate normally according to the normal heating logic in the heating mode.

2. The control method of the air conditioner according to claim 1, characterized by, According to the current indoor environment temperature of the air conditioner and the target temperature of the air conditioner, and in combination with the current indoor heat exchanger pipe temperature of the air conditioner, it is determined whether the electric auxiliary heating assembly needs to be turned on, including: A temperature difference between the target temperature of the air conditioner and the current indoor environment temperature of the air conditioner is determined, and the temperature difference is recorded as the indoor temperature difference of the air conditioner; It is determined whether the current indoor environment temperature of the air conditioner is less than a first preset temperature value and the indoor temperature difference of the air conditioner is greater than a first preset temperature threshold; If yes, it is determined that the electric auxiliary heating assembly needs to be turned on; If no, it is determined whether the current indoor heat exchanger pipe temperature of the air conditioner is greater than or equal to a first set pipe temperature; if yes, it is determined that the electric auxiliary heating assembly does not need to be turned on, and the electric auxiliary heating assembly is kept in a turned-off state; otherwise, it is determined that the electric auxiliary heating assembly needs to be turned on.

3. The control method of the air conditioner according to claim 1, wherein In a case where it is determined that the electric auxiliary heating assembly needs to be turned on, according to the current indoor environment temperature of the air conditioner, the number of electric auxiliary heating elements that need to be turned on in the electric auxiliary heating assembly is determined, including: It is determined whether the current indoor environment temperature of the air conditioner is greater than or equal to a second preset temperature value; the second preset temperature value is less than the first preset temperature value; If it is determined that the current indoor environment temperature of the air conditioner is greater than or equal to the second preset temperature value, the number of electric auxiliary heating elements that need to be turned on in the electric auxiliary heating assembly is determined as a first set number; If it is determined that the current indoor environment temperature of the air conditioner is less than the second preset temperature value, the number of electric auxiliary heating elements that need to be turned on in the electric auxiliary heating assembly is determined as a second set number; the second set number is greater than the first set number.

4. The control method of an air conditioner according to any one of claims 1 to 3, characterized by, After the electric auxiliary heating assembly is controlled to be turned on, further including: It is determined whether the current indoor environment temperature of the air conditioner is greater than a third preset temperature value or the current indoor heat exchanger pipe temperature of the air conditioner is greater than a second set pipe temperature; the third preset temperature value is greater than the first preset temperature value, and the second set pipe temperature is greater than the first set pipe temperature; If yes, the electric auxiliary heating assembly that is turned on is controlled to be turned off.

5. A control device of an air conditioner for realizing control of the air conditioner by a control method of the air conditioner according to claim 1, characterized by The air conditioner has an indoor unit and an outdoor unit; The indoor unit has an indoor heat exchanger and an electric auxiliary heating assembly; The electric auxiliary heating assembly includes electric auxiliary heating elements, the number of the electric auxiliary heating elements is two or more, the two or more electric auxiliary heating elements are arranged in parallel and can be individually turned on and turned off; the outdoor unit has a compressor; and the control device of the air conditioner includes: An acquisition unit is configured to, in a case where the air conditioner operates in a heating mode, acquire an indoor environment temperature of the air conditioner, recorded as a current indoor environment temperature of the air conditioner; acquire a pipe temperature of the indoor heat exchanger, recorded as a current indoor heat exchanger pipe temperature of the air conditioner; and acquire a target temperature of the air conditioner; The control unit is configured to determine whether the electric auxiliary heating assembly needs to be turned on according to the current indoor environment temperature of the air conditioner and the target temperature of the air conditioner, and in combination with the current indoor heat exchanger pipe temperature of the air conditioner. The control unit is further configured to, in a case where it is determined that the electric auxiliary heating assembly needs to be turned on, determine the number of electric auxiliary heating elements in the electric auxiliary heating assembly that need to be turned on according to the current indoor environment temperature of the air conditioner, and control a corresponding number of electric auxiliary heating elements in the electric auxiliary heating assembly to be turned on according to the determined number of electric auxiliary heating elements in the electric auxiliary heating assembly that need to be turned on, so as to control the electric auxiliary heating assembly to be turned on. The control unit is further configured to, after controlling the electric auxiliary heating assembly to be turned on, control the operation of the electric auxiliary heating assembly that has been turned on in combination with the current indoor environment temperature of the air conditioner and the current indoor heat exchanger pipe temperature of the air conditioner, and control the operating frequency of the compressor.

6. The control apparatus of the air conditioner according to claim 5, wherein The control unit determines whether the electric auxiliary heating assembly needs to be turned on according to the current indoor environment temperature of the air conditioner and the target temperature of the air conditioner, and in combination with the current indoor heat exchanger pipe temperature of the air conditioner, including: determining a temperature difference between the target temperature of the air conditioner and the current indoor environment temperature of the air conditioner, denoted as the indoor temperature difference of the air conditioner; determining whether the current indoor environment temperature of the air conditioner is less than a first preset temperature value and the indoor temperature difference of the air conditioner is greater than a first preset temperature threshold; if yes, it is determined that the electric auxiliary heating assembly needs to be turned on; if no, it is determined whether the current indoor heat exchanger pipe temperature of the air conditioner is greater than or equal to a first set pipe temperature: if yes, it is determined that the electric auxiliary heating assembly does not need to be turned on, and the electric auxiliary heating assembly is kept in a closed state; otherwise, it is determined that the electric auxiliary heating assembly needs to be turned on.

7. The control apparatus of the air conditioner according to claim 5, wherein The control unit, in a case where it is determined that the electric auxiliary heating assembly needs to be turned on, determines the number of electric auxiliary heating elements in the electric auxiliary heating assembly that need to be turned on according to the current indoor environment temperature of the air conditioner, including: determining whether the current indoor environment temperature of the air conditioner is greater than or equal to a second preset temperature value; the second preset temperature value is less than the first preset temperature value; if it is determined that the current indoor environment temperature of the air conditioner is greater than or equal to the second preset temperature value, the number of electric auxiliary heating elements in the electric auxiliary heating assembly that need to be turned on is determined to be a first set number; if it is determined that the current indoor environment temperature of the air conditioner is less than the second preset temperature value, the number of electric auxiliary heating elements in the electric auxiliary heating assembly that need to be turned on is determined to be a second set number; the second set number is greater than the first set number.

8. The control apparatus of an air conditioner according to any one of claims 5 to 7, characterized by The control unit, after controlling the electric auxiliary heating assembly to be turned on, controls the operation of the electric auxiliary heating assembly that has been turned on in combination with the current indoor environment temperature of the air conditioner and the current indoor heat exchanger pipe temperature of the air conditioner, and controls the operating frequency of the compressor, including: determining whether the current indoor environment temperature of the air conditioner is greater than a third preset temperature value or the current indoor heat exchanger tube temperature of the air conditioner is greater than a second set tube temperature; the third preset temperature value is greater than the first preset temperature value, and the second set tube temperature is greater than the first set tube temperature; if yes, controlling the electric auxiliary heating assembly that has been turned on to be turned off; if no, keeping the current turning-on state of the electric auxiliary heating assembly that has been turned on, and after a first set time, re-determining whether the current indoor environment temperature of the air conditioner is greater than the third preset temperature value or the current indoor heat exchanger tube temperature of the air conditioner is greater than the second set tube temperature; if yes, controlling the electric auxiliary heating assembly that has been turned on to be turned off; if no, controlling the electric auxiliary heating assembly that has been turned on to be turned off, and increasing the operating frequency of the compressor to the preset highest frequency of the compressor and controlling the compressor to operate at the preset highest frequency of the compressor.

9. The control apparatus of the air conditioner according to claim 8, wherein the control unit, after controlling the electric auxiliary heating assembly to be turned on, controls the operating condition of the electric auxiliary heating assembly that has been turned on in combination with the current indoor environment temperature of the air conditioner and the current indoor heat exchanger tube temperature of the air conditioner, and controls the operating frequency of the compressor, and further comprises: after controlling the compressor to operate at the preset highest frequency of the compressor for a second set time, determining whether the current indoor heat exchanger tube temperature of the air conditioner has been reduced; the second set time is less than the first set time; if it is determined that the current indoor heat exchanger tube temperature of the air conditioner has been reduced, controlling the electric auxiliary heating assembly that has been turned on and then turned off to be turned on again, so that the operating state of the electric auxiliary heating assembly returns to the operating state before the electric auxiliary heating assembly is turned off, and the compressor continues to operate at the preset highest frequency of the compressor, and then returning to re-combining the current indoor environment temperature of the air conditioner and the current indoor heat exchanger tube temperature of the air conditioner after controlling the electric auxiliary heating assembly that has been turned on and then turned off to be turned on again, to control the operating condition of the electric auxiliary heating assembly that has been turned on again, and control the operating frequency of the compressor; if it is determined that the current indoor heat exchanger tube temperature of the air conditioner has not been reduced, keeping the electric auxiliary heating assembly that has been turned on and then turned off to be turned off, and continuing to control the compressor to operate at the preset highest frequency of the compressor, and then controlling the compressor to operate normally according to the normal heating logic in the heating mode.

10. An air conditioner characterized by comprising: comprises: the control device of the air conditioner according to any one of claims 5 to 9.

11. A storage medium, characterized by the storage medium comprises a stored program, wherein when the program is executed, the device where the storage medium is located performs the control method of the air conditioner according to any one of claims 1 to 4.

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