Method, device, air conditioner and storage medium for controlling air conditioner

Abstract

The present application discloses a method for controlling an air conditioner, the air conditioner comprising: an auxiliary defrost device; the auxiliary defrost device having an auxiliary defrost state and an inoperative state that can be switched between each other; when the auxiliary defrost device is in the auxiliary defrost state, the wind energy generated by the operation of the outdoor fan can be converted into heat energy and stored, and when the air conditioner is operating to defrost, the stored heat energy is used to exchange heat with the refrigerant to increase the temperature of the refrigerant; the method comprises: obtaining an operating mode of the air conditioner; determining a target state of the auxiliary defrost device based on the operating mode; and controlling the auxiliary defrost device to operate according to the target state. The method enables the auxiliary defrost device to exchange heat with the refrigerant to improve the defrosting effect. Furthermore, the heat required for the auxiliary defrost device to exchange heat with the refrigerant is converted from the wind energy generated by the operation of the outdoor fan. The wind energy generated by the operation of the outdoor fan is fully utilized, achieving energy saving. The present application also discloses a device for controlling an air conditioner, an air conditioner, and a storage medium.

Description

Technical Field

[0001] The present application relates to the technical field of smart home appliances, for example, to a method, device, air conditioner and storage medium for controlling an air conditioner. Background Art

[0002] Air conditioners are commonly used in production and life. During the operation of air conditioners, energy waste is inevitable.

[0003] Related technology discloses an energy recovery method, which includes: when the air conditioner is in the on state and the bus voltage is higher than a preset threshold, converting the regenerated electric potential energy into electrical energy and storing it in the energy recovery unit; when the air conditioner is in the standby state, powering the main control board through the energy recovery unit.

[0004] During the implementation of the embodiments of the present disclosure, it was found that at least the following problems exist in the related art:

[0005] Related technologies have enabled the recycling and reuse of regenerative electrical potential energy. However, in addition to regenerative electrical potential energy, other energy sources are also wasted, such as wind energy. When the air conditioner's outdoor unit is running, the air supply energy of the outdoor fan is directly released into the external environment, resulting in energy waste. Summary of the Invention

[0006] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical elements or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0007] The embodiments of the present disclosure provide a method, an apparatus, an air conditioner, and a storage medium for controlling an air conditioner, so as to fully utilize the wind energy generated by the operation of an outdoor fan.

[0008] In some embodiments, the air conditioner includes: an auxiliary defrost device; the auxiliary defrost device has an auxiliary defrost state and an off-working state that can be switched between each other. When the auxiliary defrost device is in the auxiliary defrost state, the wind energy generated by the operation of the outdoor fan can be converted into heat energy and stored, and the stored heat energy can be used to exchange heat with the refrigerant when the air conditioner is defrosting to increase the temperature of the refrigerant; the method includes: obtaining the operating mode of the air conditioner; determining the target state of the auxiliary defrost device according to the operating mode; and controlling the auxiliary defrost device to operate according to the target state.

[0009] In some embodiments, the apparatus includes: a processor and a memory storing program instructions, wherein the processor is configured to execute the aforementioned method for controlling an air conditioner when running the program instructions.

[0010] In some embodiments, the air conditioner includes: an auxiliary defrost device, which has an auxiliary defrost state and an off-working state that can be switched between each other. When the auxiliary defrost device is in the auxiliary defrost state, it can convert the wind energy generated by the operation of the outdoor fan into heat energy and store it, and use the stored heat energy to exchange heat with the refrigerant when the air conditioner is running for defrost, thereby increasing the temperature of the refrigerant; and the aforementioned device for controlling the air conditioner.

[0011] In some embodiments, the storage medium stores program instructions, and when the program instructions are run, the aforementioned method for controlling the air conditioner is executed.

[0012] The method, device, air conditioner, and storage medium for controlling an air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

[0013] Based on the air conditioner's operating mode, the target state of the auxiliary defrost device is determined—that is, whether the auxiliary defrost device is operating. The auxiliary defrost device is then controlled to operate according to the target state. This control allows the auxiliary defrost device to operate when needed. This allows the auxiliary defrost device to exchange heat with the refrigerant, thereby increasing the refrigerant temperature and improving the defrosting effect. Furthermore, the heat required for heat exchange between the auxiliary defrost device and the refrigerant is derived from the auxiliary defrost device's conversion of wind energy generated by the outdoor fan. This fully utilizes the wind energy generated by the outdoor fan, achieving energy savings.

[0014] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] One or more embodiments are exemplarily described by corresponding drawings. These exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation. In addition,

[0016] Figure 1 is a structural diagram of an air conditioner provided by an embodiment of the present disclosure;

[0017] Figure 2 is a structural diagram of an outdoor unit provided by an embodiment of the present disclosure;

[0018] Figure 3 is a schematic structural diagram of an air guide ring provided in an embodiment of the present disclosure;

[0019] Figure 4 Schematic diagram of the structure of the air guide ring, the stopper component and the outer casing provided by the embodiment of the present disclosure;

[0020] Figure 5 is a schematic structural diagram of a heat storage device provided in an embodiment of the present disclosure;

[0021] Figure 6 is an exploded view of a portion of the structure of an outdoor unit provided by an embodiment of the present disclosure;

[0022] Figure 7 is a schematic structural diagram of a retaining ring provided in an embodiment of the present disclosure;

[0023] Figure 8 is a schematic diagram of a method for controlling an air conditioner provided by an embodiment of the present disclosure;

[0024] Figure 9 is a schematic diagram of another method for controlling an air conditioner provided by an embodiment of the present disclosure;

[0025] Figure 10 is a schematic diagram of another method for controlling an air conditioner provided by an embodiment of the present disclosure;

[0026] Figure 11 is a schematic diagram of another method for controlling an air conditioner provided by an embodiment of the present disclosure;

[0027] Figure 12 is a schematic diagram of a device for controlling an air conditioner provided by an embodiment of the present disclosure;

[0028] Figure 13 2 is a schematic diagram of another device for controlling an air conditioner provided by an embodiment of the present disclosure.

[0029] Reference numerals:

[0030] 10. Indoor unit; 11. Indoor heat exchanger; 12. Indoor fan; 20. Outdoor unit; 21. Outer casing; 211. Air outlet; 22. Outdoor heat exchanger; 23. Outdoor fan; 24. Compressor; 30. Four-way valve; 40. Throttling device; 50. Energy conversion device; 51. Air guide ring; 511. Mounting hole; 52. Micro generator; 53. Electric heating structure; 531. Electric heating rod; 54. Rotor; 60 , heat storage device; 61, heat storage module; 62, refrigerant delivery pipeline; 621, refrigerant inflow section; 622, refrigerant heat exchange section; 623, refrigerant outflow section; 624, second on-off valve; 625, third on-off valve; 70, refrigerant pipeline; 71, first on-off valve; 80, stop component; 81, stop ring; 811, notch; 82, drive assembly; 821, drive motor; 822, rack; 90, compressor compartment. DETAILED DESCRIPTION

[0031] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The accompanying drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0032] In the description and claims of the embodiments of the present disclosure, as well as in the accompanying drawings, the terms "first," "second," and the like are used to distinguish similar items and are not necessarily used to describe a particular order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate to describe the embodiments of the present disclosure herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0033] Unless otherwise stated, the term "plurality" means two or more.

[0034] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B.

[0035] 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.

[0036] The term "correspondence" may refer to an association relationship or a binding relationship. The correspondence between A and B means that there is an association relationship or a binding relationship between A and B.

[0037] Combine Figure 1 and Figure 2 As shown, an embodiment of the present disclosure provides an air conditioner. The air conditioner includes an indoor unit 10 and an outdoor unit 20. The indoor unit 10 includes an inner casing, an indoor heat exchanger 11 disposed within the inner casing, and an indoor fan 12. The outdoor unit 20 includes an outer casing 21, an outdoor heat exchanger 22 disposed within the outer casing 21, an outdoor fan 23, and a compressor 24. The compressor 24, the outdoor heat exchanger 22, the four-way valve 30, the throttling device 40, and the indoor heat exchanger 11 are connected via a refrigerant pipeline to form a refrigerant circulation loop. The compressor 24 is disposed within a compressor compartment 90.

[0038] The air conditioner also includes an auxiliary defrost device. The auxiliary defrost device has an auxiliary defrost state and an inoperative state, and is capable of switching between these two states. When in the auxiliary defrost state, the auxiliary defrost device converts the wind energy generated by the outdoor fan 23 into heat energy and stores the heat energy. During defrosting, the auxiliary defrost device provides heat energy to the refrigerant, raising the refrigerant temperature and thereby assisting in defrosting the outdoor heat exchanger 22.

[0039] See again Figure 1 The auxiliary defrost device includes an energy conversion device 50 and a heat storage device 60. The energy conversion device 50 is used to convert the wind energy generated by the rotation of the outdoor fan 23 into electrical energy, and use the electrical energy to heat the heat storage device 60. When necessary, the heat storage device 60 can use the heat energy to exchange heat with the refrigerant in the refrigerant circulation loop, thereby increasing the temperature of the refrigerant to assist in defrosting the outdoor heat exchanger 22.

[0040] Combine Figures 3 to 6 As shown, the energy conversion device 50 includes: an air guide ring 51, a micro-generator 52, and an electric heating structure 53. An air outlet 211 is formed on a wall of the outer casing 21. The air outlet 211 corresponds to the air outlet side of the outdoor fan 23. The air guide ring 51 is entirely located inside the outer casing 21 and is arranged corresponding to the air outlet 211. The wall surface of the air guide ring 51 is provided with multiple mounting holes 511 along its circumference. A rotatable rotor 54 is disposed in each mounting hole 511. The rotor 54 is a rotor that conforms to the Magnus effect.

[0041] The number of micro-generators 52 is equal to the number of rotors 54. Each micro-generator 52 is mounted on the inner wall of the outer housing 21, adjacent to and corresponding to each rotor 54. The micro-generators 52 are electrically connected to the electric heating structure 53. The electric heating structure 53 is also connected to the heat storage device 60 to heat the heat storage device 60.

[0042] Combine Figure 5 and Figure 6 As shown, the thermal storage device 60 includes a thermal storage module 61 and a refrigerant delivery pipeline 62. The thermal storage module 61 is connected to the electric heating structure 53. Optionally, the electric heating structure 53 includes one or more electric heating rods 531. The electric heating rods 531 are inserted into the thermal storage module 61 to heat the thermal storage module 61.

[0043] See again Figure 1 The refrigerant delivery pipeline 62 partially passes through the thermal storage module 61. Optionally, the refrigerant delivery pipeline 62 includes a refrigerant inlet section 621, a refrigerant heat exchange section 622, and a refrigerant outlet section 623. Both the refrigerant inlet section 621 and the refrigerant outlet section 623 are located outside the thermal storage module 61. The refrigerant heat exchange section 622 is located inside the thermal storage module 61.

[0044] The outdoor heat exchanger 22 is connected to the four-way valve 30 via a refrigerant line 70. The refrigerant inlet of the refrigerant inflow section 621 is connected to the first position of the refrigerant line 70. The refrigerant outlet of the refrigerant outflow section 623 is connected to the second position of the refrigerant line 70. A first on-off valve 71 is provided on the refrigerant line 70, located between the first and second positions. A second on-off valve 624 is provided on the refrigerant inflow section 621. A third on-off valve 625 is provided on the refrigerant outflow section 623.

[0045] When the outdoor fan 23 rotates, the wind it blows drives the rotor 54 to rotate. Because the rotor 54 conforms to the Magnus effect, it can serve as the power source for the corresponding micro-generator 52 to generate electricity. The rotor 54 is connected to the corresponding micro-generator 52 via a transmission mechanism (not shown in the figure), thereby converting wind energy into electrical energy. It should be noted that generating electricity through rotor rotation is a conventional technology and will not be described in detail here. The electricity generated by the micro-generator 52 causes the electric heating structure 53 to generate heat, which in turn heats the heat storage module 61. When auxiliary defrosting of the outdoor heat exchanger 22 is required, the second on-off valve 624 and the third on-off valve 625 can be controlled to open. In this way, some refrigerant passes through the refrigerant inflow section 621 and exchanges heat with the heat storage module 61 in the refrigerant heat exchange section 622, increasing the refrigerant temperature. The heated refrigerant flows out of the refrigerant outflow section 623 and enters the outdoor heat exchanger 22 to defrost the outdoor heat exchanger 22.

[0046] See again Figure 4 The air conditioner further includes a stop member 80. The stop member 80 is provided on the air guide ring 51 and is used to stop the rotor 54 from rotating.

[0047] Optionally, the stop member 80 includes a stop ring 81 and a drive assembly 82. The stop ring 81 is rotatably mounted on the outside of the air guide ring 51. Optionally, the stop ring 81 is rotated relative to the air guide ring 51 by means of a slide rail or other structure.

[0048] Combine Figure 7As shown, one circumference of the retaining ring 81 is provided with notches 811 recessed toward the other circumference. The number of notches 811 is equal to the number of rotors 54. The diameter of the rotor 54 is smaller than the width A of the notches 811. Each rotor 54 is positioned within a corresponding notch 811. The drive assembly 82 is in transmission connection with the retaining ring 81 and can drive the retaining ring 81 to rotate counterclockwise or clockwise. When the rotor 54 is required to rotate, the rotor 54 does not contact the side edges of the notches 811. The position of the retaining ring 81 at this point is assumed to be the first position. When the rotor 54 is required to stop rotation, the drive assembly 82 drives the retaining ring 81 to rotate clockwise (counterclockwise). Due to the rotation of the retaining ring 81, the side edges of the notches 811 come into contact with the rotor 54, thereby preventing the rotor 54 from rotating. The position of the retaining ring 81 at this point is assumed to be the second position. When the rotor 54 is required to resume rotation, the drive assembly 82 drives the retaining ring 81 to rotate counterclockwise (clockwise) to the first position. In this way, the side of the notch 811 is no longer in contact with the rotor 54, and the rotor 54 resumes rotation.

[0049] Optionally, see again Figure 4 and Figure 7 The drive assembly 82 includes a drive motor 821 and a rack 822. The rack 822 is disposed on the outer periphery of the retaining ring 81. The output shaft of the drive motor 821 is provided with a gear. The gear meshes with the rack 822. Through the meshing of the gear and rack 822, the retaining ring 81 can be driven to rotate clockwise or counterclockwise when the drive motor 821 rotates forward or reverse.

[0050] Combine Figure 8 As shown, an embodiment of the present disclosure provides a method for controlling an air conditioner, comprising:

[0051] S801: The air conditioner obtains its operating mode.

[0052] S802: The air conditioner determines a target state of the auxiliary defrosting device according to the operating mode.

[0053] S803: The air conditioner controls the auxiliary defrosting device to operate according to the target state.

[0054] When defrosting an air conditioner, the four-way valve is typically switched to allow the warmer refrigerant to enter the outdoor heat exchanger, thereby defrosting the outdoor heat exchanger. When the air conditioner is operating in heating mode, the indoor heat exchanger acts as a condenser, and the outdoor heat exchanger acts as an evaporator. The evaporator absorbs heat as it evaporates the refrigerant. This heat absorption lowers the temperature of the outdoor heat exchanger, and condensation forms when the outdoor air encounters the cooler outdoor heat exchanger. When the air conditioner is operating in heating mode, the outdoor temperature is generally lower. Consequently, this condensation turns to frost, causing frost to form on the outdoor heat exchanger. Therefore, defrosting is necessary when the air conditioner is operating in heating mode and frost is forming. Conversely, defrosting is not necessary when the air conditioner is operating in cooling mode.

[0055] During the operation of the air conditioner, the operating mode of the air conditioner is obtained. Here, the main distinction is made between cooling mode and heating mode. According to the operating mode of the air conditioner, the target state of the auxiliary defrost device is determined, that is, whether the auxiliary defrost device needs to be operated. The auxiliary defrost device is then controlled to operate according to the target state to control whether the auxiliary defrost device performs auxiliary defrosting. Auxiliary defrosting here means that on the basis of sensible heat defrosting (controlling the reversing of the four-way valve) or latent heat defrosting, the auxiliary defrost device is controlled to operate and perform auxiliary defrosting. When the auxiliary defrost device performs auxiliary defrosting, the auxiliary defrost device can convert the wind energy generated by the operation of the outdoor unit into thermal energy, and use the thermal energy to exchange heat with the refrigerant, thereby increasing the temperature of the refrigerant. In this way, the high-temperature refrigerant enters the outdoor heat exchanger, making the defrosting effect better.

[0056] In this embodiment, the target state of the auxiliary defrost device—that is, whether the auxiliary defrost device is operating—is determined based on the air conditioner's operating mode. The auxiliary defrost device is then controlled to operate according to the target state. This allows the auxiliary defrost device to operate when required for auxiliary defrosting. Heat exchange between the auxiliary defrost device and the refrigerant is performed, thereby increasing the refrigerant temperature and improving the defrosting effect. Furthermore, the heat required for heat exchange between the auxiliary defrost device and the refrigerant is derived from the auxiliary defrost device's conversion of wind energy generated by the outdoor fan. This fully utilizes the wind energy generated by the outdoor fan, achieving energy savings.

[0057] Combine Figure 9 As shown, the embodiment of the present disclosure provides another method for controlling an air conditioner, comprising:

[0058] S801: The air conditioner obtains its operating mode.

[0059] S812: When the air conditioner is in a cooling mode, the target state of the auxiliary defrosting device is determined to be a non-operating state.

[0060] S813, the air conditioner controls the energy conversion device to stop converting wind energy into thermal energy; and controls the heat storage device to stop exchanging heat with the refrigerant.

[0061] As mentioned above, when the air conditioner is operating in cooling mode, defrosting is not required. Therefore, when the air conditioner is operating in cooling mode, the target state of the auxiliary defrost device is determined to be an inoperative state. The energy conversion device is controlled to stop operating, thereby stopping the conversion of wind energy into thermal energy. This is because the conversion of wind energy into thermal energy requires the participation of the rotor. When the rotor rotates, noise is generated. Therefore, when defrosting is not required, the energy conversion device is controlled to stop operating, that is, the rotor is controlled to stop rotating, to reduce noise. This also reduces rotor wear and extends its service life. At the same time, the heat storage device is controlled to stop operating, thereby stopping heat exchange with the refrigerant. In this way, when the air conditioner is operating in cooling mode, that is, when defrosting is not required, the energy conversion device and the heat storage device are controlled to stop operating to reduce noise, extend the life of the rotor, and stop unnecessary heat exchange with the refrigerant.

[0062] Optionally, in step S813, the air conditioner controls the energy conversion device to stop converting wind energy into heat energy; and controls the heat storage device to stop exchanging heat with the refrigerant, including:

[0063] The air conditioning control stop prevents the rotor from rotating; and

[0064] The air conditioner controls the first on-off valve to be open, and the second on-off valve and the third on-off valve to be closed.

[0065] The stop component is controlled to prevent the rotor from rotating. Specifically, the drive motor is controlled to rotate forward, thereby driving the stop ring to rotate clockwise to the second position via the gear rack. When the stop ring rotates to the second position, the side of the notch contacts the rotor, thereby preventing the rotor from rotating. The first on-off valve is controlled to open, and the second and third on-off valves are controlled to close. In this way, the refrigerant inflow section and the refrigerant outflow section are controlled to be in a disconnected state. The refrigerant does not enter the thermal storage module for heat exchange and only circulates normally between the outdoor heat exchanger and the indoor heat exchanger.

[0066] Combine Figure 10 As shown, the embodiment of the present disclosure provides another method for controlling an air conditioner, comprising:

[0067] S801: The air conditioner obtains its operating mode.

[0068] S822: When the air conditioner is in a heating mode, obtain the operating status of the air conditioner.

[0069] S832: The air conditioner determines a target state of the auxiliary defrost device according to the operating state.

[0070] S803: The air conditioner controls the auxiliary defrosting device to operate according to the target state.

[0071] As previously mentioned, the auxiliary defrost device includes an energy conversion device and a heat storage device. The auxiliary defrost states include heat storage and heat release. When the energy conversion device converts wind energy into heat energy and stores it in the heat storage device, the auxiliary defrost device is in the heat storage state. When the heat storage device exchanges heat with the refrigerant, the auxiliary defrost device is in the heat release state. When the auxiliary defrost device is storing heat, the outdoor fan speed must reach a certain value. In other words, the air volume must be high enough to drive the rotor for the auxiliary defrost device to store heat. The auxiliary defrost device will only release heat after the air conditioner enters defrost mode. Therefore, when the air conditioner is operating in heating mode, the operating status of the air conditioner, such as the outdoor fan speed and the defrost status, is obtained. This determines whether the auxiliary device's target state is heat storage or heat release, thereby controlling the auxiliary defrost device.

[0072] Combine Figure 11 As shown, the embodiment of the present disclosure provides another method for controlling an air conditioner, comprising:

[0073] S801: The air conditioner obtains its operating mode.

[0074] S812: When the air conditioner is in a cooling mode, the target state of the auxiliary defrosting device is determined to be a non-operating state.

[0075] S822: When the air conditioner is in a heating mode, obtain the operating status of the air conditioner.

[0076] S813, after the air conditioner executes S812, it controls the energy conversion device to stop converting wind energy into thermal energy; and controls the heat storage device to stop exchanging heat with the refrigerant.

[0077] S8132: After the air conditioner executes S822, when the speed of the outdoor fan reaches a speed threshold, the target state of the auxiliary defrost device is determined to be a heat storage state.

[0078] S823: After the air conditioner executes S8132, it controls the energy conversion device to convert wind energy into thermal energy; and controls the heat storage device to stop exchanging heat with the refrigerant.

[0079] S8232: After the air conditioner executes S823, when the heat storage temperature of the heat storage device reaches the saturation temperature, the defrost status of the air conditioner is obtained.

[0080] S8332: When the air conditioner enters defrost mode, the compressor frequency and compressor exhaust temperature are obtained.

[0081] S8432: When the compressor frequency of the air conditioner reaches a frequency threshold and the compressor exhaust temperature is less than a temperature threshold, the target state of the auxiliary defrost device is determined to be a heat release state.

[0082] S833, after the air conditioner executes S8432, it controls the energy conversion device to convert wind energy into thermal energy; and controls the heat storage device to exchange heat with the refrigerant.

[0083] The outdoor fan speed is obtained. If the speed reaches the threshold, the air volume is sufficient. The auxiliary defrost device is then set to a thermal storage state, specifically, to convert wind energy into heat and store it in the thermal storage module. At this point, the energy conversion device is controlled to begin operation, converting wind energy into heat and storing it in the thermal storage module. Since heat storage has just begun, the heat generated is insufficient to raise the refrigerant temperature. Therefore, the thermal storage device is controlled to cease operation to prevent heat exchange with the refrigerant.

[0084] The thermal storage module is equipped with a temperature sensor to detect the module's stored heat temperature. If the stored heat temperature reaches its saturation temperature, indicating that the module's temperature has reached its upper limit, the auxiliary defrost device is set to the inoperative state. At this point, the energy conversion device is controlled to stop operation. This is accomplished by driving the motor to rotate the retaining ring, causing the side of the notch to contact the rotor, thereby stopping the rotor.

[0085] After the thermal storage module completes heat storage, it determines the air conditioner's defrost status, that is, whether it has entered defrost mode. Alternatively, if the air conditioner is performing sensible defrost, the defrost status can be determined by determining whether the four-way valve has reversed. If the air conditioner is performing latent defrost, the defrost status can be determined by determining whether the relevant defrost piping is connected. If the air conditioner is determined to have entered defrost mode, the compressor operating frequency and compressor discharge temperature are obtained. Here, a frequency threshold and a temperature threshold are set. The frequency threshold is the maximum defrost frequency. The temperature threshold can be 25°C or lower. If the frequency reaches the frequency threshold and the discharge temperature is lower than the temperature threshold, the compressor has reached the maximum defrost frequency, but the discharge temperature is still too low, indicating that the defrost effect is unsatisfactory. In this case, the auxiliary defrost device needs to operate to assist in defrosting. Therefore, the target state of the auxiliary defrost device is set to the heat release state. At this time, the energy conversion device is controlled to continue operating to continuously convert wind energy into heat energy. Simultaneously, the thermal storage device is controlled to operate, allowing the thermal storage module to exchange heat with the refrigerant to increase the refrigerant temperature.

[0086] In this way, when the air conditioner is operating in heating mode, the outdoor fan speed is obtained to control the timing of the auxiliary defrost device's heat storage state. When heat storage is completed and the air conditioner enters defrost mode, the compressor frequency and exhaust temperature are obtained to control the timing of the auxiliary defrost device's heat release state. This achieves the goal of precisely controlling the auxiliary defrost device's operation.

[0087] Optionally, in step S823, the air conditioner controls the energy conversion device to convert wind energy into thermal energy; and controls the heat storage device to stop exchanging heat with the refrigerant, including:

[0088] The air conditioning control stop member releases the stop on the rotor; and,

[0089] The air conditioner controls the first on-off valve to remain open, and the second on-off valve and the third on-off valve to remain closed.

[0090] Control the stopping component to release the stop on the rotor. Specifically, control the drive motor to reverse, thereby driving the stop ring to rotate counterclockwise to the first position through the gear rack. When the stop ring rotates to the first position, the side of the notch does not contact the rotor, thereby releasing the stop on the rotor. At this time, the rotor can rotate normally, thereby converting wind energy into electrical energy. The electric heating structure then uses electrical energy to heat the heat storage module. At the same time, control the first on-off valve to remain open, and the second on-off valve and the third on-off valve to remain closed, so that the heat storage device remains in a stopped operating state. In this way, by controlling the stop part, the first on-off valve, the second on-off valve and the third on-off valve, the energy conversion device converts wind energy into thermal energy, and the heat storage device stops exchanging heat with the refrigerant.

[0091] Optionally, in step S833, the air conditioner controls the energy conversion device to convert wind energy into thermal energy; and controls the heat storage device to exchange heat with the refrigerant, including:

[0092] The air conditioning control stop member continues to release the stop on the rotor; and,

[0093] The air conditioner controls the opening of the first on-off valve to decrease, and the second on-off valve and the third on-off valve to open.

[0094] The control stop component is controlled to continue releasing the rotor's stop, allowing it to continue rotating. The first on-off valve is controlled to decrease its opening to a preset value, while the second and third on-off valves are controlled to open to their maximum openings. This limits the flow of refrigerant entering the outdoor heat exchanger without undergoing heat exchange, and maintains a connected state between the refrigerant inflow section and the refrigerant outflow section. A portion of the refrigerant enters the thermal storage module and exchanges heat with it, thereby increasing the refrigerant temperature. The refrigerant after heat exchange enters the outdoor heat exchanger, thereby improving the defrosting effect of the outdoor heat exchanger.

[0095] Optionally, the preset opening is half of the maximum opening. This is because if the first on-off valve is completely closed, the flow of refrigerant entering the outdoor heat exchanger will be reduced, thereby affecting the defrosting effect. Therefore, by reducing the opening of the first on-off valve by half, the refrigerant temperature is increased while ensuring the flow of refrigerant entering the outdoor heat exchanger, thereby improving the defrosting effect.

[0096] Optionally, during the air conditioner defrost process, the current compressor exhaust temperature is continuously monitored. If the exhaust temperature exceeds the heat storage temperature of the auxiliary defrost device—that is, if the exhaust temperature exceeds the internal temperature of the thermal storage module—this indicates that the refrigerant temperature is already high and has exceeded the heat storage temperature of the thermal storage module. Heat exchange between the thermal storage module and the refrigerant is unnecessary. Therefore, the target state of the auxiliary defrost device is determined to be a heat storage state. The first on-off valve is controlled to open to its maximum opening, and the second and third on-off valves are controlled to close. This allows the auxiliary defrost device to continue storing heat in preparation for the next defrost cycle.

[0097] Combine Figure 12 As shown, an embodiment of the present disclosure provides an apparatus for controlling an air conditioner, comprising: an acquisition module 121, a determination module 122, and a control module 123. Acquisition module 121 is configured to acquire the operating mode of the air conditioner. Determination module 122 is configured to determine a target state for an auxiliary defrost device based on the operating mode. Control module 123 is configured to control the auxiliary defrost device to operate according to the target state.

[0098] The device for controlling an air conditioner provided by the embodiment of the present disclosure is used to determine the target state of the auxiliary defrost device based on the operating mode of the air conditioner, that is, to determine whether the auxiliary defrost device is operating. The auxiliary defrost device is then controlled to operate according to the target state. On the one hand, the auxiliary defrost device can be controlled to operate when the auxiliary defrost device is needed for auxiliary defrosting. The auxiliary defrost device is made to exchange heat with the refrigerant, thereby increasing the refrigerant temperature and improving the defrosting effect. On the other hand, the heat required for the heat exchange between the auxiliary defrost device and the refrigerant comes from the conversion of wind energy generated by the operation of the outdoor fan by the auxiliary defrost device. The wind energy generated by the operation of the outdoor fan is fully utilized to achieve energy saving.

[0099] Combine Figure 13 As shown, an embodiment of the present disclosure provides a device for controlling an air conditioner, including a processor 130 and a memory 131. Optionally, the device may further include a communication interface 132 and a bus 133. The processor 130, the communication interface 132, and the memory 131 may communicate with each other via the bus 133. The communication interface 132 may be used for information transmission. The processor 130 may call the logic instructions in the memory 131 to execute the method for controlling an air conditioner according to the above embodiment.

[0100] In addition, the logic instructions in the memory 131 can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.

[0101] Memory 131, 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 the present disclosure. Processor 130 executes the program instructions / modules stored in memory 131 to execute functional applications and process data, thereby implementing the air conditioner control method in the above-described embodiments.

[0102] The memory 131 may include a program storage area and a data storage area. The program storage area may store an operating system and application programs required for at least one function; the data storage area may store data generated based on the use of the terminal device. Furthermore, the memory 131 may include high-speed random access memory and non-volatile memory.

[0103] An embodiment of the present disclosure provides an air conditioner, comprising the above-mentioned device for controlling an air conditioner.

[0104] An embodiment of the present disclosure provides a storage medium storing computer-executable instructions, wherein the computer-executable instructions are configured to execute the above-mentioned method for controlling an air conditioner.

[0105] The aforementioned storage medium may be a transient computer-readable storage medium or a non-transitory computer-readable storage medium.

[0106] The above description and the accompanying drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural, logical, electrical, process and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the words used in this application are only used to describe the embodiments and are not used to limit the claims. As used in the description of the embodiments and claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to also include plural forms. Similarly, the term "and / or" as used in this application refers to any and all possible combinations of one or more associated listings. In addition, when used in this application, the term "comprise" and its variations "comprises" and / or comprising refer to the presence of stated features, wholes, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups of these. In the absence of further restrictions, an element defined by the sentence "comprising a..." does not exclude the presence of other identical elements in the process, method or device that includes the element. In this article, each embodiment may focus on the differences from other embodiments, and the same and similar parts between the various embodiments can be referenced to each other. For the methods, products, etc. disclosed in the embodiments, if they correspond to the method part disclosed in the embodiments, then the relevant parts can be found in the description of the method part.

[0107] Those skilled in the art will appreciate that the units and algorithm steps of each example 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 performed in hardware or software may depend on the specific application and design constraints of the technical solution. The technicians may use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the embodiments of the present disclosure. The technicians will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0108] In the embodiments disclosed herein, the disclosed methods and products (including but not limited to devices, equipment, etc.) can be implemented in other ways. For example, the device embodiments described above are merely illustrative. For example, the division of the units can be merely a logical functional division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between each other shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, and can be electrical, mechanical or other forms. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected to implement this embodiment according to actual needs. In addition, the functional units in the embodiments of the present disclosure may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0109] The flowcharts and block diagrams in the accompanying drawings show the possible implementation architectures, functions and operations of the systems, methods and computer program products according to the embodiments of the present disclosure. In this regard, each box in the flowchart or block diagram can represent a module, program segment or part of the code, and the module, program segment or part of the code contains one or more executable instructions for implementing the specified logical functions. In some alternative implementations, the functions marked in the box can also occur in an order different from that marked in the accompanying drawings. For example, two consecutive boxes can actually be executed substantially in parallel, or they can sometimes be executed in the opposite order, which can depend 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 boxes can also occur in an order different from that disclosed in the description, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, or they can sometimes be executed in the opposite order, which can depend on the functions involved. Each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented by a dedicated hardware-based system that performs the specified function or action, or may be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A method for controlling an air conditioner, characterized in that: The air conditioner includes an auxiliary defrosting device, including: The heat storage device is used to use the stored heat energy to exchange heat with the refrigerant during defrosting operation to increase the temperature of the refrigerant; An energy conversion device, for converting wind energy generated by the outdoor fan in the auxiliary defrost state into heat energy, comprising: an air guide ring, a micro-generator, and an electric heating structure; the air guide ring is arranged corresponding to the air outlet of the outdoor unit, and a rotatable rotor is arranged on the wall of the air guide ring along its circumference; each micro-generator is arranged in a one-to-one correspondence with each rotor and is electrically connected to the heating structure; the electric heating structure is also connected to the heat storage device; The stop member is provided on the air guide ring and includes: a stop ring and a drive assembly; a notch is provided on one circumference of the stop ring and is recessed toward the other circumference of the stop ring; the diameter of the rotor is smaller than the width of the notch, and each rotor is disposed in each notch in a one-to-one correspondence; the drive assembly is in transmission connection with the stop ring; When the rotor needs to stop rotating, the driving assembly drives the stop ring to rotate so that the side of the notch contacts the rotor, thereby preventing the rotor from rotating; when the rotor needs to resume rotating, the driving assembly drives the stop ring to rotate so that the side of the notch does not contact the rotor, and the rotor resumes rotating, so that the auxiliary defrost device has an auxiliary defrost state and a non-operating state that can be switched between each other; The method comprises: Obtaining an operating mode of the air conditioner; determining a target state of the auxiliary defrost device according to an operating mode; The auxiliary defrosting device is controlled to operate according to a target state.

2. The method according to claim 1, characterized in that Determining the target state of the auxiliary defrost device according to the operation mode includes: When the operation mode is the cooling mode, the target state of the auxiliary defrosting device is determined to be a non-operating state.

3. The method according to claim 2, characterized in that The controlling the auxiliary defrost device to operate according to a target state includes: controlling the energy conversion device to stop converting the wind energy into thermal energy; and The heat storage device is controlled to stop exchanging heat with the refrigerant.

4. The method according to claim 1, wherein Determining a target state of the auxiliary defrost device according to the operating mode includes: When the operating mode is the heating mode, obtaining the operating state of the air conditioner; According to the operating state, a target state of the auxiliary defrosting device is determined.

5. The method according to claim 4, characterized in that The operating state of the air conditioner includes: the speed of the outdoor fan; the auxiliary defrost state includes: the heat storage state; the target state of the auxiliary defrost device is determined according to the operating state, including: When the rotation speed of the outdoor fan reaches a rotation speed threshold, it is determined that the target state of the auxiliary defrost device is a heat storage state.

6. The method according to claim 5, characterized in that The controlling the auxiliary defrost device to operate according to a target state includes: controlling the energy conversion device to convert wind energy into thermal energy; and, The heat storage device is controlled to stop exchanging heat with the refrigerant.

7. The method according to claim 6, characterized in that The operating state of the air conditioner includes: the heat storage temperature of the auxiliary defrost device; the auxiliary defrost state includes: the heat release state; the target state of the auxiliary defrost device is determined according to the operating state, further comprising: When the heat storage temperature of the heat storage device reaches the saturation temperature, obtaining the defrost status of the air conditioner; When the defrost condition indicates that the defrost is being entered, the compressor frequency and the compressor exhaust temperature are obtained; When the compressor frequency reaches a frequency threshold and the compressor exhaust temperature is less than a temperature threshold, the target state of the auxiliary defrosting device is determined to be a heat release state.

8. The method according to any one of claims 1 to 6, characterized in that The heat storage device includes: a heat storage module, connected to the electric heating structure; Part of the refrigerant delivery pipeline is installed inside the heat storage module.

9. The method according to claim 8, characterized in that The electric heating structure includes: One or more electric heating rods are inserted into the thermal storage module to heat the thermal storage module.

10. The method according to any one of claims 1 to 6, characterized in that The refrigerant delivery pipeline includes: The refrigerant inlet section, the refrigerant heat exchange section and the refrigerant outflow section are both located outside the thermal storage module, and the refrigerant heat exchange section is located inside the thermal storage module; Among them, the outdoor heat exchanger is connected to the four-way valve through the refrigerant pipeline, the refrigerant inlet of the refrigerant inlet section is connected to the first position of the refrigerant pipeline, and the refrigerant outlet of the refrigerant outflow section is connected to the second position of the refrigerant pipeline. A first on-off valve is provided on the refrigerant pipeline and located between the first position and the second position, a second on-off valve is provided on the refrigerant inflow section, and a third on-off valve is provided on the refrigerant outflow section.

11. A device for controlling an air conditioner, comprising a processor and a memory storing program instructions, characterized in that: The processor is configured to execute the method for controlling an air conditioner according to any one of claims 1 to 10 when running the program instructions.

12. An air conditioner, characterized in that: include: Auxiliary defrost device, including: The heat storage device is used to use the stored heat energy to exchange heat with the refrigerant during defrosting operation to increase the temperature of the refrigerant; An energy conversion device, for converting wind energy generated by the outdoor fan in the auxiliary defrost state into heat energy, comprising: an air guide ring, a micro-generator, and an electric heating structure; the air guide ring is arranged corresponding to the air outlet of the outdoor unit, and a rotatable rotor is arranged on the wall of the air guide ring along its circumference; each micro-generator is arranged in a one-to-one correspondence with each rotor and is electrically connected to the heating structure; the electric heating structure is also connected to the heat storage device; The stop member is provided on the air guide ring and includes: a stop ring and a drive assembly; a notch is provided on one circumference of the stop ring and is recessed toward the other circumference of the stop ring; the diameter of the rotor is smaller than the width of the notch, and each rotor is disposed in each notch in a one-to-one correspondence; the drive assembly is in transmission connection with the stop ring; When the rotor needs to stop rotating, the driving assembly drives the stop ring to rotate so that the side of the notch contacts the rotor, thereby preventing the rotor from rotating; when the rotor needs to resume rotating, the driving assembly drives the stop ring to rotate so that the side of the notch does not contact the rotor, thereby resuming the rotor rotation, so that the auxiliary defrosting device has an auxiliary defrosting state and a non-operating state that can be switched between each other; and, The device for controlling an air conditioner as claimed in claim 11.

13. A storage medium storing program instructions, characterized in that: When the program instructions are executed, the method for controlling an air conditioner according to any one of claims 1 to 10 is executed.

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