Method and device for controlling an electric heating device of an air conditioner, air conditioner

Abstract

The application relates to the technical field of intelligent household appliances, and discloses a method for controlling an electric heating device of an air conditioner, wherein the electric heating device is a resistance type electric heating device; the method comprises the following steps: acquiring a current indoor environment temperature under the condition that the electric heating device of the air conditioner is started to operate; determining a target air volume of an indoor fan according to the current indoor environment temperature; and controlling the indoor fan to execute the target air volume. In the case that the electric heating power is fixed, the air volume of the air conditioner and the indoor environment temperature rising range are basically inversely proportional. Therefore, the matched air volume can be determined based on the current indoor environment temperature. The air outlet temperature can meet the requirement of the current environment temperature condition, and the comfort requirement of the user on the air outlet temperature is ensured. The application further discloses a device for controlling the electric heating device of the air conditioner and an air conditioner.

Description

Technical Field

[0001] This application relates to the field of smart home appliance technology, such as a method, apparatus, and air conditioner for controlling an electric heating device in an air conditioner. Background Technology

[0002] When an existing electric heating air conditioner is activated, the fan speed is typically set to several fixed levels, such as high, medium, and low, each corresponding to a different airflow rate. Generally, the high fan speed is used to meet the air conditioner's rated capacity, while the low fan speed is used to meet the condensation requirements. When the air conditioner is in electric heating mode, because the fan speed is fixed, if the ambient temperature is too low or too high, the air outlet temperature can easily become too cold or too hot, resulting in poor consumer comfort.

[0003] A power control method for an air conditioner PTC electric heater is disclosed in the related technology, including: acquiring the indoor ambient temperature, calculating the difference ΔT between the set temperature and the indoor ambient temperature, controlling the operation of the PTC electric heater and the fan according to the difference ΔT, and adjusting the heating amount of the PTC electric heater.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] The wind speed regulation methods of related technologies are applicable to PTC electric heaters, but not to resistance-type electric heating devices; they cannot meet users' requirements for airflow comfort.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides a method, apparatus, and air conditioner for controlling an electric heating device in an air conditioner, so that the outlet air temperature after heating by the resistance electric heating device meets the user's requirements for airflow comfort and improves the user experience.

[0009] In some embodiments, the method includes: acquiring the current indoor ambient temperature when the electric heating device of the air conditioner is started and running; determining the target fan speed of the indoor fan based on the current indoor ambient temperature; and controlling the indoor fan to execute the target fan speed.

[0010] In some embodiments, the apparatus includes a processor and a memory storing program instructions, the processor being configured to, when executing the program instructions, perform the aforementioned method for controlling an electric heating device of an air conditioner.

[0011] In some embodiments, the air conditioner includes: an air conditioner body; and a device for controlling the electric heating device of the air conditioner as described above, which is installed on the air conditioner body.

[0012] In some embodiments, the storage medium stores program instructions that, when executed, perform the method described above for controlling the electric heating device of an air conditioner.

[0013] The method, apparatus, and air conditioner for controlling the electric heating device of an air conditioner provided in this disclosure can achieve the following technical effects:

[0014] In this embodiment, the electric heating device is a resistance type. The power of this type of electric heating device does not decrease with the reduction of the fan airflow. Instead, given a fixed electric heating power, the airflow of the air conditioner and the temperature rise of the indoor environment are essentially inversely proportional. Therefore, the appropriate airflow can be determined based on the current indoor temperature. This ensures that the airflow temperature meets the requirements of the current ambient temperature, guaranteeing the user's comfort requirements for the airflow temperature.

[0015] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description

[0016] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:

[0017] Figure 1 This is a schematic diagram of an air conditioner provided in an embodiment of this disclosure;

[0018] Figure 2 This is a schematic diagram of a method for controlling an electric heating device of an air conditioner provided in an embodiment of this disclosure;

[0019] Figure 3 This is a schematic diagram of another method for controlling an electric heating device of an air conditioner provided in an embodiment of this disclosure;

[0020] Figure 4 This is a schematic diagram of an apparatus for controlling an electric heating device of an air conditioner, provided in an embodiment of this disclosure;

[0021] Figure 5This is a schematic diagram of an apparatus for controlling an electric heating device of an air conditioner, provided in an embodiment of this disclosure;

[0022] Figure 6 This is a schematic diagram of an apparatus for controlling an electric heating device of an air conditioner, provided in an embodiment of this disclosure;

[0023] Figure 7 This is a schematic diagram of another air conditioner provided in an embodiment of this disclosure.

[0024] Figure label:

[0025] 10: Electric heating device; 21: Compressor; 22: Outdoor heat exchanger; 23: Throttling device; 24: Indoor heat exchanger. Detailed Implementation

[0026] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.

[0027] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0028] Unless otherwise stated, the term "multiple" means two or more.

[0029] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.

[0030] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.

[0031] The term "correspondence" can refer to an association or binding relationship. The correspondence between A and B means that there is an association or binding relationship between A and B.

[0032] Current air conditioners typically use PTC (Power Transmission Control) type electric heating devices, which are characterized by a decrease in power as airflow decreases. Therefore, existing technology adjusts the fan speed based on the temperature difference between the indoor ambient temperature and the set temperature. The closer the indoor ambient temperature is to the set temperature, the lower the fan speed, meaning the lower the power of the electric heating device.

[0033] Combination Figure 1 The air conditioner includes a refrigerant circulation system and a resistance-type electric heating device 10. The refrigerant circulation system includes a compressor 21, an outdoor heat exchanger 22, a throttling device 23, and an indoor heat exchanger 24. When the air conditioner is cooling, it cools through the refrigerant circulation system. When the air conditioner is heating, it heats through the resistance-type electric heating device 10, and the refrigerant circulation system is not running. That is, the resistance-type electric heating device 10 is the sole heat source for heating. Furthermore, the characteristic of resistance-type electric heating is that the heating power is fixed and does not change with the airflow. Therefore, with a fixed heating power, the airflow of the air conditioner and the increase in indoor temperature are basically inversely proportional.

[0034] Combination Figure 2 As shown, this disclosure provides a method for controlling an electric heating device in an air conditioner, comprising:

[0035] S101, when the electric heating device of the air conditioner is started and running, the processor obtains the current indoor ambient temperature.

[0036] S102, the processor determines the target fan speed of the indoor fan based on the current indoor ambient temperature.

[0037] S103, the processor controls the indoor fan to execute the target fan speed.

[0038] Here, the current indoor ambient temperature is acquired when the electric heating device is started and running. Specifically, a temperature sensor can be installed at the air return vent of the air conditioner to detect the indoor ambient temperature. Alternatively, the air conditioner can obtain the indoor ambient temperature from a temperature sensor installed indoors.

[0039] Furthermore, the target fan speed is determined based on the indoor ambient temperature. Since airflow and indoor temperature rise are inversely proportional, the lower the indoor ambient temperature and the larger the airflow, the lower the air outlet temperature of the air conditioner. Conversely, the higher the indoor ambient temperature and the smaller the airflow, the higher the air outlet temperature. This can lead to discomfort for users, either from cold air or excessive heat. Therefore, a pre-established correspondence between indoor ambient temperature and indoor fan speed can be stored on a local server or in the cloud. During use, this correspondence can be retrieved by looking up a table to determine the target fan speed. In this way, by controlling the fan speed based on the indoor ambient temperature, the air conditioner can operate at a lower speed in low-temperature environments to increase the air outlet temperature, and operate at a higher speed in high-temperature environments to prevent overheating. This ultimately improves the user's comfort level regarding the air outlet temperature.

[0040] The method for controlling the electric heating device of an air conditioner, as provided in this embodiment, uses a resistance-type electric heating device whose power does not decrease with the reduction of the fan airflow. Instead, given a fixed electric heating power, the airflow of the air conditioner and the indoor temperature rise are essentially inversely proportional. Therefore, the appropriate airflow can be determined based on the current indoor temperature. This ensures that the airflow temperature meets the requirements of the current ambient temperature, guaranteeing the user's comfort needs for the airflow temperature.

[0041] Optionally, in step S102, the processor determines the target fan speed of the indoor fan based on the current indoor ambient temperature, including:

[0042] S121, the processor obtains the first relationship between the indoor fan speed and the ambient temperature range.

[0043] S122, the processor determines the target ambient temperature range corresponding to the current indoor ambient temperature.

[0044] S123, the processor determines the target windshield of the indoor fan corresponding to the target ambient temperature range based on the first relationship.

[0045] Here, a pre-stored primary relationship between indoor fan speed settings and ambient temperature ranges is established. Understandably, air conditioner indoor fan speed settings vary, generally including high, medium, and low. Furthermore, some air conditioners may have two speed settings (high and low), or even more than three. Different fan speed settings correspond to different ambient temperature ranges; that is, different air conditioners may have different primary relationships. After obtaining the primary relationship, a lookup table can be used to retrieve the target ambient temperature range corresponding to the current indoor temperature. Then, based on the target ambient temperature range, the target fan speed setting is determined. In this way, the target fan speed setting meets the current indoor ambient temperature conditions, resulting in a suitable air temperature that satisfies user needs.

[0046] Combination Figure 3 As shown, this disclosure provides another method for controlling an electric heating device in an air conditioner, comprising:

[0047] S101, when the electric heating device of the air conditioner is started and running, the processor obtains the current indoor ambient temperature.

[0048] S141, the processor obtains the power of the electric heating device and the fan speed information of the indoor fan; wherein, the fan speed information includes the air volume of each fan speed.

[0049] S142, the processor determines the ambient temperature corresponding to each fan speed setting based on a second relationship between power, airflow, and temperature rise.

[0050] S143, the processor establishes a primary relationship between the fan speed and the ambient temperature range based on the fan speed and the corresponding ambient temperature.

[0051] S121, the processor obtains the first relationship between the indoor fan speed and the ambient temperature range.

[0052] S122, the processor determines the target ambient temperature range corresponding to the current indoor ambient temperature.

[0053] S123, the processor determines the target windshield of the indoor fan corresponding to the target ambient temperature range based on the first relationship.

[0054] S102, the processor determines the target fan speed of the indoor fan based on the current indoor ambient temperature.

[0055] S103, the processor controls the indoor fan to execute the target fan speed.

[0056] Here, for a specific air conditioner model, the power of its electric heating element and the fan speed of the indoor fan are clearly defined and can be directly accessed. Furthermore, based on the second relationship, the temperature rise corresponding to each fan speed setting is determined under the current electric heating element power. Then, given a fixed comfortable outlet temperature, the corresponding indoor ambient temperature can be calculated. The target temperature can be a fixed value or a range. Finally, based on the fan speed and the calculated indoor ambient temperature, a first relationship between the fan speed and the ambient temperature range is established.

[0057] As an example, at the low fan speed setting, the determined temperature increase is 20°C. With a comfortable outlet air temperature of 35°C, the corresponding indoor ambient temperature is calculated to be 15°C. This means that with the current electric heating power and an indoor ambient temperature of 15°C, the low fan speed setting can meet the user's airflow needs. Understandably, the number of fan speed settings is limited; therefore, each fan speed setting corresponds to an ambient temperature range. As another example, using the parameters described above, a correspondence can be established between the indoor ambient temperature range (-∞, 15°C) and the low fan speed setting. That is, when the indoor ambient temperature is less than or equal to 15°C, the target fan speed setting is the low fan speed setting. In this way, the low fan speed setting, compared to other higher fan speed settings, is more effective in increasing the outlet air temperature, thus bringing the actual outlet air temperature closer to the target temperature.

[0058] Optionally, in step S142, the processor determines the ambient temperature corresponding to each fan speed setting based on the second relationship between power, airflow, and temperature rise, including:

[0059] The processor calculates the temperature rise ΔT = Q / cm for different fan speeds.

[0060] The processor uses the difference between the target outlet air temperature and the temperature rise as the ambient temperature for the corresponding fan setting.

[0061] Where Q is the rated power of the electric heating device; c is the specific heat capacity of air; m is the air mass corresponding to each fan speed setting; and ΔT is the temperature rise range corresponding to each fan speed setting.

[0062] Here, the temperature rise for each fan setting is calculated using the formula ΔT = Q / cm. Since the human body surface temperature is generally around 37℃, the target outlet air temperature can be set to 36℃. Furthermore, the specific heat capacity of air, c, changes very little under normal atmospheric pressure and when the air conditioner is operating within its normal temperature range; therefore, it is considered a fixed constant.

[0063] As an example, for a certain electric heating air conditioner, there are three fan speed settings (high, medium and low), its electric heating power is configured as 4.8KW, the specific heat capacity of air is c=1.003kJ / (kg*K), and the air density is ρ=1.29kg / m3. The fan speed and corresponding temperature rise for each setting are shown in Table 1 below.

[0064] Table 1

[0065] Fan speed <![CDATA[Air volume m 3 / h]]> Temperature rise ΔT upscale 600 22.3 Mid-range 500 26.7 low-end 400 33.4

[0066] Based on the table above, it can be determined that the ambient temperature corresponding to the high setting is around 15℃, the ambient temperature corresponding to the medium setting is around 10℃, and the ambient temperature corresponding to the low setting is around 5℃.

[0067] Optionally, in step S143, the processor establishes a first relationship between the fan speed and the ambient temperature range based on the fan speed and the corresponding ambient temperature, including:

[0068] The processor uses multiple ambient temperatures as thresholds to generate multiple ambient temperature ranges that match the number of fan blades.

[0069] The processor establishes a one-to-one correspondence between the fan speed and the ambient temperature range.

[0070] Among them, the larger the air volume represented by the fan baffle, the larger the corresponding ambient temperature range.

[0071] Here, multiple ambient temperatures are determined as critical values, and multiple interval values ​​are generated to match the number of fan speeds. A first relationship between fan speeds and ambient temperature intervals is then established. The data in Table 1 is used as an example. Let T1 = 5℃, T2 = 10℃, and T3 = 15℃. Then, in (-∞, T1], the fan speed corresponds to low; in (T1, T2], it corresponds to medium; and in (T2, ∞), it corresponds to high. In some embodiments, the fan speed is less than three, i.e., only high and low speeds. Using the data in Table 1 as an example, in (-∞, T1], the fan speed corresponds to low; and in (T2, ∞), it corresponds to high. That is, when establishing the first relationship, matching is done as much as possible according to the number of fan speeds. In this way, the first relationship is universal and applicable to air conditioners with a small number of fan speeds.

[0072] Combination Figure 4 As shown, this disclosure provides another method for controlling an electric heating device in an air conditioner, comprising:

[0073] S101, when the electric heating device of the air conditioner is started and running, the processor obtains the current indoor ambient temperature.

[0074] S102, the processor determines the target fan speed of the indoor fan based on the current indoor ambient temperature.

[0075] S103, the processor controls the indoor fan to execute the target fan speed.

[0076] S204: When the indoor fan speed does not match the target speed, the processor controls the indoor fan to maintain the current operating speed.

[0077] This section addresses the case where the number of fan speed settings on the air conditioner is less than the number in the first relationship. As mentioned earlier, if the air conditioner has two fan speed settings and the indoor ambient temperature is (T1, T2), the target fan speed is set to medium. However, this air conditioner does not have a medium fan speed setting. In this situation, the indoor fan speed is not adjusted; the fan is kept at its current operating speed. Understandably, the indoor ambient temperature is relatively comfortable at this time, neither too low nor too high, allowing users to choose a higher or lower speed based on their usage habits. The current operating speed is generally the user's frequently used setting; therefore, in this case, the current operating speed is maintained.

[0078] Combination Figure 5 As shown, this disclosure provides another method for controlling an electric heating device in an air conditioner, comprising:

[0079] S101, when the electric heating device of the air conditioner is started and running, the processor obtains the current indoor ambient temperature.

[0080] S102, the processor determines the target fan speed of the indoor fan based on the current indoor ambient temperature.

[0081] S103, the processor controls the indoor fan to execute the target fan speed.

[0082] S204: When the indoor fan speed does not match the target speed, the processor controls the indoor fan to maintain the current operating speed.

[0083] S305, the processor reacquires the target windshield of the indoor fan.

[0084] S306, when the new target airflow rate matches the indoor fan airflow rate, the processor controls the indoor fan to execute the new target airflow rate.

[0085] Here, after the indoor fan maintains its current operating setting for a preset time, the indoor air outlet temperature may reach the target air outlet temperature. If it is reached, the electric heating device stops operating. If it is not reached, the target fan speed can be redefined based on the new indoor ambient temperature. That is, it is re-evaluated whether the conditions for adjusting the fan speed are met. If the new target fan speed matches the indoor fan speed, the fan speed is adjusted to operate at the target speed. As an example, the fan is currently operating at a low speed. After running for a preset time, if the indoor ambient temperature meets (T2, ∞), the redefined target fan speed is a high speed. The fan is then adjusted to operate at the high speed.

[0086] This disclosure provides an apparatus for controlling an electric heating device of an air conditioner, including an acquisition module, a determination module, and a control module. The acquisition module is configured to acquire the current indoor ambient temperature when the electric heating device of the air conditioner is activated. The determination module is configured to determine a target fan speed for the indoor fan based on the current indoor ambient temperature. The control module is configured to control the indoor fan to execute the target fan speed.

[0087] The apparatus for controlling the electric heating device of an air conditioner, as provided in this embodiment, includes a resistance-type electric heating device. The power of this type of electric heating device does not decrease with a reduction in fan airflow. Instead, given a fixed electric heating power, the airflow from the air conditioner and the temperature rise in the indoor environment are essentially inversely proportional. Therefore, the appropriate airflow can be determined based on the current indoor temperature. This ensures that the airflow temperature meets the requirements of the current ambient temperature conditions, guaranteeing the user's comfort requirements for the airflow temperature.

[0088] Combination Figure 6 As shown, this disclosure provides an apparatus 300 for controlling an electric heating device of an air conditioner, including a processor 100 and a memory 101. Optionally, the apparatus may further include a communication interface 102 and a bus 103. The processor 100, communication interface 102, and memory 101 can communicate with each other via the bus 103. The communication interface 102 can be used for information transmission. The processor 100 can call logical instructions in the memory 101 to execute the method for controlling the electric heating device of an air conditioner according to the above embodiment.

[0089] Furthermore, the logic instructions in the aforementioned memory 101 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0090] The memory 101, as a computer-readable storage medium, can be used to store software programs and computer-executable programs, such as program instructions / modules corresponding to the methods in the embodiments of this disclosure. The processor 100 executes functional applications and data processing by running the program instructions / modules stored in the memory 101, that is, it implements the method for controlling the electric heating device of the air conditioner in the above embodiments.

[0091] The memory 101 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the terminal device. Furthermore, the memory 101 may include high-speed random access memory and may also include non-volatile memory.

[0092] Combination Figure 7 As shown, this disclosure provides an air conditioner 100, including: a refrigerant circulation system including a compressor, an outdoor heat exchanger, a throttling device, and an indoor heat exchanger; a resistance-type electric heating device disposed on one side of the indoor heat exchanger; and the aforementioned device 200 (300) for controlling the air conditioner's electric heating device. The device 200 (300) for controlling the air conditioner's electric heating device is installed on the air conditioner body. The installation relationship described herein is not limited to placement inside the product, but also includes installation connections with other components of the product, including but not limited to physical connections, electrical connections, or signal transmission connections. Those skilled in the art will understand that the device 200 (300) for controlling the air conditioner's electric heating device can be adapted to feasible product bodies to achieve other feasible embodiments.

[0093] This disclosure provides a computer-readable storage medium storing computer-executable instructions configured to perform the above-described method for controlling an air conditioner's electric heating device.

[0094] The aforementioned computer-readable storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0095] The technical solutions of this disclosure can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes one or more instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the method described in this disclosure. The aforementioned storage medium can be a non-transitory storage medium, including: a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and other media capable of storing program code; it can also be a transient storage medium.

[0096] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0097] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0098] The methods and products (including but not limited to devices and equipment) disclosed in the embodiments herein can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For instance, the division of units may be merely a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the shown or discussed units may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected to implement this embodiment according to actual needs. Furthermore, the functional units in the embodiments of this disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0099] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than that shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the accompanying drawings, the operations or steps corresponding to different blocks may also occur in a different order than disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. Each block in a block diagram and / or flowchart, and combinations of blocks in a block diagram and / or flowchart, can be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.

Claims

1. A method for controlling an electric heating device of an air conditioner, the electric heating device being an electric resistance type electric heating device; characterized in that, The method comprises: In the case that the electric heating device of the air conditioner starts to operate, the current indoor environment temperature is acquired; According to the current indoor environment temperature, the target air volume of the indoor fan is determined; which comprises: The power of the electric heating device and the air volume information of the indoor fan are acquired; wherein the air volume information comprises the air volume of each air volume; The temperature rising range of different air volumes is calculated; The difference between the target air outlet temperature and the temperature rising range is taken as the environment temperature corresponding to the air volume; According to the air volume and the corresponding environment temperature, the first relationship between the air volume and the environment temperature interval is established; The target environment temperature interval corresponding to the current indoor environment temperature is determined; According to the first relationship, the target air volume of the indoor fan corresponding to the target environment temperature interval is determined; The indoor fan is controlled to execute the target air volume.

2. The method of claim 1, wherein, The calculation of the temperature rising range of different air volumes comprises: ΔT=Q / cm is calculated; Wherein, Q is the rated power of the electric heating device; c is the specific heat capacity of air; m is the air mass corresponding to the air volume of each air volume; ΔT is the temperature rising range corresponding to each air volume.

3. The method of claim 1, wherein, The establishment of the first relationship between the air volume and the environment temperature interval according to the air volume and the corresponding environment temperature comprises: A plurality of environment temperature intervals matching the number of air volumes are generated with a plurality of environment temperatures as critical values; The air volume and the environment temperature interval are one-to-one corresponding, and the first relationship is established; Wherein, the greater the air volume represented by the air volume, the greater the value of the corresponding environment temperature interval.

4. The method according to any one of claims 1 to 3, characterized in that, In the case that the air volume of the indoor fan comprises two positions, further comprising: In the case that the air volume of the indoor fan does not match the target air volume, the indoor fan is controlled to keep the current operating position.

5. The method of claim 4, wherein, After the indoor fan is controlled to keep the current operating position, further comprising: The target air volume of the indoor fan is reacquired; In the case that the air volume of the indoor fan matches the new target air volume, the indoor fan is controlled to execute the new target air volume.

6. An apparatus for controlling an electric heating device of an air conditioner, comprising a processor and a memory having stored program instructions, characterized in that, The processor is configured to execute the method for controlling the electric heating device of the air conditioner as claimed in any one of claims 1 to 5 when the program instructions are executed.

7. An air conditioner characterized by comprising: Comprise: Air conditioner body; The device for controlling the electric heating device of the air conditioner as claimed in claim 6 is installed in the air conditioner body.

8. A storage medium storing program instructions, characterized in that, The program instructions are executed to execute the method for controlling the electric heating device of the air conditioner as claimed in any one of claims 1 to 5.

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