Control method of air conditioner and air conditioner

Abstract

The invention relates to the technical field of air conditioners, particularly provides a control method of an air conditioner and the air conditioner, and at least solves the problem that the use experience is reduced due to the fact that a user needs to frequently adopt a physical mode to remove peculiar smell in an existing air conditioner. The control method provided by the invention comprises the following steps: enabling the air conditioner to enter a peculiar smell removal mode; enabling a compressor to operate at a preset frequency, and enabling an indoor fan to operate at a preset rotating speed; the real-time temperature of a coil pipe of the indoor heat exchanger is obtained; the real-time temperature is compared with a first preset temperature threshold value and a second preset temperature threshold value; and based on the comparison result, the frequency of the compressor is adjusted, so that the real-time temperature is between the first preset temperature threshold value and the second preset temperature threshold value, and a water film can be generated on the surface of a fin of the indoor heat exchanger within the preset time. The temperature of the coil pipe is adjusted to be within a proper temperature range by adjusting the frequency of the compressor, the fins can generate a water film capable of covering peculiar smell, and peculiar smell in the air conditioning system is effectively reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular provides a control method for an air conditioner and an air conditioner. Background Art

[0002] When the fins of the indoor heat exchanger of the air conditioner are covered with water, the water evaporates after the air conditioner is shut down for a long time, leaving traces inside the air conditioner, which can easily cause the air conditioner to become moldy and produce odor. In the related art, users will use physical spraying to remove the odor on the fins of the air conditioner, but frequent use of physical deodorization methods will make users feel troubled and irritated, thereby reducing the user experience. Summary of the invention

[0003] The present invention aims to solve the above technical problems, that is, to at least solve the problem that existing air conditioners require users to frequently use physical methods to remove odors, thereby reducing the user experience.

[0004] In a first aspect, the present invention provides a control method for an air conditioner, wherein the air conditioner includes a compressor, an indoor heat exchanger and an indoor fan, and the control method includes: while or after the air conditioner is turned on, causing the air conditioner to enter a deodorization mode; causing the compressor to operate at a preset frequency, and causing the indoor fan to operate at a preset speed; obtaining the real-time temperature of the coil of the indoor heat exchanger; comparing the real-time temperature with a first preset temperature threshold and a second preset temperature threshold, respectively, the first preset temperature threshold being less than the second preset temperature threshold; based on the comparison result, adjusting the frequency of the compressor so that the real-time temperature is between the first preset temperature threshold and the second preset temperature threshold, so that a water film can be generated on the surface of the fin of the indoor heat exchanger within a preset time.

[0005] The control method of the air conditioner provided by the present invention can make the air conditioner enter the deodorization mode while or after the air conditioner is turned on. After entering the deodorization mode, the compressor is controlled to run at a preset frequency and the indoor fan is controlled to run at a preset speed, and the frequency of the compressor is adjusted accordingly according to the real-time temperature of the indoor heat exchanger coil, so that the real-time temperature of the coil is within a suitable temperature range between a first preset temperature threshold and the second preset temperature threshold. The suitable temperature range is conducive to the surface of the fin of the air conditioner heat exchanger to quickly generate a relatively stable covering water film. The water film covers the surface of the fin to prevent the odor on the surface of the fin from being carried out by the air. After the air conditioner is turned on, the discharge of odor in the air-conditioning system can be effectively reduced, thereby improving the quality and comfort of indoor air, thereby effectively improving the user experience.

[0006] In some feasible implementations of the above-mentioned air conditioner control method, the preset frequency is the maximum rated frequency of the compressor; and / or the preset speed is the minimum speed at which the indoor fan is allowed to operate.

[0007] It should be noted that by using the highest frequency allowed by the compressor as the preset frequency, the coil temperature can be quickly reduced to a temperature close to the desired temperature. Since the compressor needs to perform variable frequency operation according to the real-time temperature of the coil, maintaining the indoor fan at the lowest speed can effectively reduce the burden on the entire air conditioning system, avoid overheating, and also help protect the compressor from damage.

[0008] In some feasible implementations of the above-mentioned air conditioner control method, the “adjusting the frequency of the compressor based on the comparison result so that the real-time temperature is between the first preset temperature threshold and the second preset temperature threshold” includes:

[0009] If the real-time temperature is less than or equal to the first preset temperature threshold, the frequency of the compressor is reduced; or

[0010] If the real-time temperature is greater than, equal to, or greater than the first preset temperature threshold, and less than, equal to, or less than the second preset temperature threshold, the compressor is operated at the current frequency; or

[0011] If the real-time temperature is greater than or equal to the second preset temperature threshold, the frequency of the compressor is increased.

[0012] It is understandable that reducing the frequency of the compressor means that the compressor runs slower, the refrigerant circulates slower in the system, the refrigerant evaporates slower at the indoor heat exchanger, and absorbs less heat, which increases the temperature of the indoor heat exchanger coil. Similarly, increasing the frequency of the compressor means that the compressor runs faster, the refrigerant circulates faster in the system, the refrigerant evaporates faster at the indoor heat exchanger, and absorbs more heat, which decreases the temperature of the indoor heat exchanger coil.

[0013] In some feasible implementations of the above-mentioned air conditioner control method, the compressor is an overclocked compressor, and the control method further includes:

[0014] After the frequency of the compressor is increased to the maximum rated frequency, if the real-time temperature is greater than the second preset temperature threshold, the compressor is controlled to be overclocked.

[0015] It can be understood that, whether the frequency of the compressor is directly increased to the maximum rated frequency when starting up, or the frequency of the compressor is increased to the maximum rated frequency when adjusting the real-time temperature of the coil, if the real-time temperature of the coil is still greater than the second preset temperature threshold, the overclocking compressor can be controlled to perform overclocking action, thereby further increasing the frequency of the compressor to reduce the real-time temperature of the coil, so that the real-time temperature can be between the first preset temperature threshold and the second preset temperature threshold.

[0016] In some feasible implementations of the above-mentioned air conditioner control method, a temperature range greater than or equal to the first preset temperature threshold and less than or equal to the second preset temperature threshold is a preset temperature range, and the control method further includes:

[0017] During the period when the air conditioner is in the deodorization mode, if the real-time temperature enters the preset temperature range and lasts for a first time period, the first timer starts timing; then, the second timer records the second time period when the real-time temperature is out of the preset temperature range;

[0018] Determine whether the second time duration is greater than or equal to a preset time duration threshold; if so, suspend the first timer until the real-time temperature enters the preset temperature range again and lasts for the first time duration, and then resume the first timer; if not, resume the first timer and reset the second timer;

[0019] Obtain the accumulated duration of the first timer; determine whether the accumulated duration of the first timer reaches a first preset total duration threshold, and if so, exit the air conditioner from the deodorization mode.

[0020] In the deodorization mode, by adopting the above timing method, the real-time temperature of the coil can be maintained within the preset temperature range for at least the first period of time, so that the fins of the air conditioner can form a relatively stable covering water film, thereby effectively ensuring the deodorization effect of the air conditioner in the deodorization mode. At the same time, it also provides the termination conditions for the air conditioner to exit the deodorization mode in time, so that the user can use the cooling mode of the air conditioner normally.

[0021] In some feasible implementations of the above-mentioned air conditioner control method, the control method further includes: when the air conditioner runs in the deodorization mode for a second preset total time threshold, causing the air conditioner to exit the deodorization mode.

[0022] By adopting this timing method, it is possible to effectively prevent the air conditioner from being in the deodorization mode for a long time, thereby affecting the user's normal use of the air conditioner.

[0023] In some feasible implementations of the above-mentioned air conditioner control method, the compressor is an overclocked compressor, and the real-time frequency of the compressor is adjusted to the maximum rated frequency of the compressor while or after the air conditioner exits the deodorization mode.

[0024] It should be noted that when the real-time temperature of the coil is adjusted by adjusting the frequency of the compressor, the compressor may be overclocked, that is, the real-time frequency of the compressor will be greater than the maximum rated frequency of the compressor. In this case, when exiting the deodorization mode, the frequency of the compressor can be restored to a frequency range that can operate stably (the real-time frequency of the compressor is less than or equal to the maximum rated frequency of the compressor). This helps to ensure that the entire air-conditioning system can operate stably, so that the user can switch the air conditioner to other modes such as cooling mode for use.

[0025] In some feasible implementations of the above-mentioned air conditioner control method, the control method further includes:

[0026] When or after the air conditioner exits the deodorization mode, obtaining the real-time rotation speed of the indoor fan; comparing the real-time rotation speed with a first preset rotation speed threshold;

[0027] If the real-time rotation speed is less than or equal to the first preset rotation speed threshold, controlling the rotation speed of the indoor fan to increase at a first preset rotation speed change rate; or

[0028] If the real-time speed is greater than, equal to or greater than the first preset speed threshold, the speed of the indoor fan is controlled to increase at a second preset speed change rate, wherein the first preset speed change rate is greater than the second preset speed change rate.

[0029] It should be noted that since the speed of the indoor fan in the deodorization mode is often lower than that in other modes, when exiting the deodorization mode, the speed of the indoor fan can be increased first to make the speed of the indoor fan closer to the speed required in other modes, so that the air conditioner can more easily switch from the deodorization mode to other modes.

[0030] By setting a first preset speed change rate with a larger value and a second preset speed change rate with a smaller value, in addition to allowing the speed of the indoor fan to be adjusted to the speed required by other modes such as the cooling mode, so that the air conditioner can more easily switch from the deodorization mode to other modes, it can also avoid directly increasing the speed of the indoor fan all at once, causing the air outlet speed of the indoor fan to increase rapidly, which is prone to water blowing and drying of the water film, thereby helping to maintain the stability of the covering water film used for deodorization.

[0031] In some feasible implementations of the above-mentioned air conditioner control method, the air conditioner further includes an air guide plate installed at the air outlet, and the control method further includes:

[0032] Before, simultaneously with or after the air conditioner enters the deodorization mode, rotating the air guide plate to an upward blowing position; or

[0033] After the air conditioner is exited from the deodorization mode, the air guide plate is rotated to a normal air outlet position.

[0034] By adjusting the air guide plate of the air conditioner to the upward position in the deodorization mode, it is possible to prevent odor-carrying air from blowing directly onto the user, and allow the trace odor brought out initially to spread and dilute above the room to prevent users from smelling it in a large area. After exiting the deodorization mode, the air guide plate can be rotated to the normal air outlet position so that the user can use the air conditioner normally.

[0035] In a second aspect, the present invention further provides an air conditioner, comprising a control device, the control device comprising a memory and a processor, the memory storing a computer program, and the processor being configured to execute the control method described in the aforementioned technical solution through the computer program.

[0036] Those skilled in the art can understand that, since the air conditioner can execute the aforementioned control method of the air conditioner, it has all the technical effects that can be obtained by the aforementioned control method, which will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0038] Figure 1 This is a flowchart of embodiment 1 of the present invention. DETAILED DESCRIPTION

[0039] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not used to limit the scope of protection of the present invention. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios. For example, although the following embodiments are described using split-type household air conditioners as examples, this is not restrictive. The technical solution of the present invention is also applicable to other types of air conditioners such as integrated air conditioners and embedded air conditioners. Such changes in the application object do not deviate from the main purpose of the present invention and should be limited within the scope of protection of the present invention.

[0040] In order to better illustrate the present invention, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present invention can also be implemented without certain specific details.

[0041] In the description of the present invention, the terms "upper", "lower", "inner", "outer" and the like indicating directions or positional relationships are based on directions or positional relationships in actual applications, which are only for the convenience of description, and do not indicate or imply that the device to be protected must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, ordinal numbers such as "first" and "second" are only for the convenience of description and are not used to indicate or imply relative importance.

[0042] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] The air conditioner provided by the present invention includes a compressor, an indoor heat exchanger, an outdoor heat exchanger, a throttling device and an indoor fan, wherein the compressor is used to compress the sucked low-temperature and low-pressure refrigerant gas into a high-temperature and high-pressure gas; the throttling device is used to reduce the pressure and temperature of the refrigerant, so that the high-pressure liquid becomes a low-temperature and low-pressure liquid after passing through the throttling device, which helps to control the flow and pressure of the refrigerant, so that the refrigerant circulation loop is complete and the stable operation of the system is ensured; the indoor fan is used to blow the air processed by the indoor heat exchanger into the room, so as to realize the circulation and temperature regulation of the air; the indoor heat exchanger is mainly used to exchange heat with the indoor air; the outdoor heat exchanger is mainly used to exchange heat with the outdoor air. These five components work together to realize the cooling and heating functions of the air conditioner through the four basic processes of compression, condensation, throttling and evaporation.

[0044] When the fins of the indoor heat exchanger of the air conditioner are covered with water, the water evaporates after the air conditioner is shut down for a long time, leaving traces inside the air conditioner, which can easily cause the air conditioner to become moldy and produce odor. In the related art, users will use physical spraying to remove the odor on the fins of the air conditioner, but frequent use of physical deodorization methods will make users feel troubled and irritated, thereby reducing the user's experience. In order to solve the above problems, the present invention provides a control method for an air conditioner.

[0045] Example 1

[0046] like Figure 1 As shown, the control method of the air conditioner provided by the present invention includes:

[0047] S1. When or after the air conditioner is turned on, the air conditioner enters the deodorization mode.

[0048] Specifically, after receiving the power-on signal, the air conditioner is turned on and runs. At the same time or after the air conditioner is turned on and runs, the air conditioner is controlled to enter the deodorization mode. In this way, the air conditioner can be deodorized before entering the cooling mode, thereby preventing the air with odor from being blown out and affecting the user experience.

[0049] S2: The compressor is operated at a preset frequency and the indoor fan is operated at a preset speed.

[0050] Specifically, the preset frequency is the maximum rated frequency of the compressor; and / or the preset speed is the minimum speed at which the indoor fan is allowed to operate.

[0051] It should be noted that by adopting the highest frequency allowed by the compressor as the preset frequency, the coil temperature can be quickly reduced to a temperature close to the desired temperature. Since the compressor needs to perform frequency conversion operation according to the real-time temperature of the coil, maintaining the indoor fan at the lowest speed can effectively reduce the burden on the entire air-conditioning system, avoid overheating, and also help protect the compressor from damage. In special circumstances, for example, during the process of the compressor increasing the frequency from 0 Hz to the preset frequency, that is, before the compressor has increased the frequency to the preset frequency, if the real-time temperature of the coil is less than the first preset temperature threshold, the speed of the indoor fan can be increased based on the minimum speed so that the real-time temperature is between the first preset temperature threshold and the second preset temperature threshold.

[0052] S3. Obtain the real-time temperature of the coil of the indoor heat exchanger.

[0053] Specifically, the real-time temperature of the coil can be monitored by a temperature sensor or other temperature measuring components, thereby obtaining the real-time temperature of the coil of the indoor heat exchanger.

[0054] S4. Compare the real-time temperature with the first preset temperature threshold and the second preset temperature threshold respectively.

[0055] Specifically, the first preset temperature threshold is less than the second preset temperature threshold. The first preset temperature threshold and the second preset temperature threshold are the temperature range end values ​​obtained by the test personnel after experimental testing, which can allow the fins of the indoor heat exchanger to form a relatively stable covering water film. When the coil temperature is controlled between the first preset temperature threshold and the second preset temperature threshold, the air conditioner has a relatively good deodorization effect. Among them, the temperature range from the first preset temperature threshold to the second preset temperature threshold can be 3°C~5°C, but in actual use, the specific values ​​of the first preset temperature threshold and the second preset temperature threshold will change according to the type, model and size of the air conditioner. Therefore, the temperature range from the first preset temperature threshold to the second preset temperature threshold of this embodiment is not limited to 3°C~5°C, and the specific value can only be obtained based on the deodorization experiment conducted by the test personnel on the corresponding air conditioner.

[0056] S5. Based on the comparison result, adjust the frequency of the compressor so that the real-time temperature is between the first preset temperature threshold and the second preset temperature threshold, so that a water film can be generated on the surface of the fin of the indoor heat exchanger within a preset time.

[0057] This embodiment provides a method for adjusting the frequency of the compressor so that the real-time temperature is between a first preset temperature threshold and a second preset temperature threshold. Specifically:

[0058] S51: If the real-time temperature is less than or equal to the first preset temperature threshold, the frequency of the compressor is reduced. This is because reducing the frequency of the compressor means that the running speed of the compressor is slowed down, the circulation speed of the refrigerant in the system is slowed down, the evaporation speed of the refrigerant at the indoor heat exchanger is reduced, and the heat absorbed becomes less, thereby increasing the temperature of the indoor heat exchanger coil.

[0059] S52: If the real-time temperature is greater than or equal to or greater than the first preset temperature threshold and less than or equal to or less than the second preset temperature threshold, the compressor is operated at the current frequency. By maintaining the frequency of the compressor to operate stably, the circulation speed and evaporation speed of the refrigerant in the system also tend to be stable, so that the temperature of the coil can be maintained between the first preset temperature threshold and the second preset temperature threshold.

[0060] S53: If the real-time temperature is greater than or equal to the second preset temperature threshold, the frequency of the compressor is increased. This is because increasing the frequency of the compressor means that the compressor runs faster, the refrigerant circulates faster in the system, and the refrigerant evaporates faster at the indoor heat exchanger, absorbing more heat, thereby reducing the temperature of the indoor heat exchanger coil.

[0061] On this basis, the compressor may be an overclocked compressor, and the control method further includes: after the frequency of the compressor is increased to the maximum rated frequency, if the real-time temperature is greater than a second preset temperature threshold, controlling the compressor to overclock.

[0062] It should be noted that an overclocked compressor is a compressor that allows the compressor to operate at a speed exceeding the maximum rated frequency for a short period of time or under certain conditions.

[0063] It can be understood that, whether the frequency of the compressor is directly increased to the maximum rated frequency when starting up, or the frequency of the compressor is increased to the maximum rated frequency when adjusting the real-time temperature of the coil, if the real-time temperature of the coil is still greater than the second preset temperature threshold at this time, the overclocking compressor can be controlled to perform overclocking action, thereby further increasing the frequency of the compressor to reduce the real-time temperature of the coil, so that the real-time temperature can be between the first preset temperature threshold and the second preset temperature threshold, meeting the needs of frequency modulation and temperature control.

[0064] The control method of the air conditioner provided by the present invention can make the air conditioner enter the deodorization mode while or after the air conditioner is turned on. After entering the deodorization mode, the compressor is controlled to run at a preset frequency and the indoor fan is controlled to run at a preset speed, and the frequency of the compressor is adjusted accordingly according to the real-time temperature of the indoor heat exchanger coil, so that the real-time temperature of the coil is within a suitable temperature range between a first preset temperature threshold and a second preset temperature threshold. The suitable temperature range is conducive to the surface of the fin of the air conditioner heat exchanger to quickly generate a relatively stable covering water film. The water film covers the surface of the fin to prevent the odor on the surface of the fin from being carried out by the air. After the air conditioner is turned on, the discharge of odor in the air-conditioning system can be effectively reduced, thereby improving the quality and comfort of indoor air, thereby effectively improving the user experience.

[0065] Example 2

[0066] On the basis of the above embodiment, in order to further reasonably control the deodorization time of the air conditioner, this embodiment provides a timing method that can make the air conditioner exit the deodorization mode, so the control method of this embodiment also includes:

[0067] S1. When or after the air conditioner is turned on, the air conditioner is put into a deodorization mode;

[0068] S11, when the air conditioner is in the deodorization mode, if the real-time temperature enters the preset temperature range and lasts for a first time period, the first timer starts timing; thereafter, the second timer records the second time period when the real-time temperature is out of the preset temperature range;

[0069] Determine whether the second time duration is greater than or equal to a preset time duration threshold; if so, suspend the first timer until the real-time temperature enters the preset temperature range again and lasts for the first time duration, and then resume the first timer; if not, resume the first timer and reset the second timer;

[0070] Obtain the accumulated duration of the first timer; determine whether the accumulated duration of the first timer reaches a first preset total duration threshold, and if so, exit the air conditioner from the deodorization mode.

[0071] The temperature range that is greater than or equal to the first preset temperature threshold and less than or equal to the second preset temperature threshold is the preset temperature range.

[0072] Specifically, it also includes a third timer, which starts timing when the real-time temperature enters the preset temperature range, stops timing and is reset to zero when the real-time temperature exits the preset temperature range, that is, the third timer is used to record the third time length that the real-time temperature is continuously within the preset temperature range, and determines whether the third time length is greater than or equal to the first time length. If so, the first timer starts timing. The second timer starts timing when the real-time temperature leaves the temperature range, stops timing and is reset to zero when the real-time temperature re-enters the temperature range, that is, the second time length recorded by the second timer when the real-time temperature leaves the preset temperature range is also a continuous time length. The value of the first time length and the value of the preset time length threshold are both less than the value of the first preset total time length threshold. The value range of the first preset total time length threshold is 100s to 120s. The specific value is set according to actual needs. For example, the value of the first time length, the value of the preset time length threshold and the value of the first preset total time length threshold can be 10s, 30s, and 100s, respectively.

[0073] By adopting the above timing method, the real-time temperature of the coil can be maintained within the preset temperature range for at least the first period of time, so that a relatively stable covering water film can be formed on the surface of the fins of the indoor heat exchanger, thereby effectively ensuring the deodorization effect of the air conditioner in the deodorization mode. At the same time, it also provides the termination conditions for the air conditioner to exit the deodorization mode in time, so that the user can use the cooling mode of the air conditioner normally.

[0074] It should be noted that the second timer and the third timer will not count at the same time; after the third time is greater than or equal to the first time, the first timer may count at the same time as the third timer, and the first timer may also count at the same time as the second timer, that is, during the timing of the first timer, the real-time temperature of the coil is allowed to switch between the preset temperature range and the preset temperature range, and the first timer will stop timing when the second time is greater than or equal to the preset time threshold. With this timing method, after the real-time temperature of the coil is allowed to be continuously within the preset temperature range for at least the first time, the real-time temperature of the coil can be allowed to switch between the preset temperature range and the preset temperature range, that is, after the real-time temperature of the coil is continuously within the preset temperature range for the first time, the real-time temperature of the coil is allowed to fluctuate, as long as the real-time temperature of the coil is restored to the preset temperature range by adjusting the speed of the indoor fan within the preset time threshold, until the accumulated time of the first timer reaches the first preset total time threshold, the air conditioner is exited from the deodorization mode, which not only avoids the real-time temperature of the coil from being out of the preset temperature range for a long time in the deodorization mode, but also can relatively reasonably control the total time of the air conditioner entering the deodorization mode.

[0075] In addition, this embodiment also provides another timing condition, so the control method of this embodiment also includes:

[0076] S12: when the air conditioner operates in the deodorization mode for a second preset total time threshold, the air conditioner is caused to exit the deodorization mode.

[0077] By adopting this timing method, it is possible to effectively prevent the air conditioner from being in the deodorization mode for a long time, thereby affecting the user's normal use of the air conditioner.

[0078] Specifically, when the air conditioner enters the deodorization mode, the fourth timer of the air conditioner starts timing; when the timing duration of the fourth timer reaches the second preset total duration threshold, the air conditioner enters and exits the deodorization mode.

[0079] It should be noted that, in actual application, the present invention can also adopt a timing method that combines two timing methods, wherein the first preset total time threshold is less than the second preset total time threshold. By combining the two timing methods, the first timing method can be used to minimize the time that the air conditioner is in the deodorization mode, and the real-time temperature of the coil is controlled by adjusting the speed of the indoor fan, so that a relatively stable covering water film can be formed on the surface of the fin of the indoor heat exchanger, thereby covering the surface of the fin to prevent the odor on the surface of the fin from being carried out by the air, which can effectively reduce the occurrence of odor in the air-conditioning system. At the same time, the second timing method can be used to avoid the situation where the air conditioner is in the deodorization mode for a long time due to a failure of the first timer or other reasons, so that the user can use the cooling mode of the air conditioner normally, effectively ensuring the user's usage experience.

[0080] In the present invention, when or after the air conditioner exits the deodorization mode, if the compressor is an overclocked compressor, the real-time frequency of the compressor is adjusted to the maximum rated frequency of the compressor.

[0081] Because when the real-time temperature of the coil is adjusted by adjusting the frequency of the compressor, the compressor may be overclocked, that is, the real-time frequency of the compressor will be greater than the maximum rated frequency of the compressor. In this case, when exiting the deodorization mode, the frequency of the compressor can be restored to a frequency range that can operate stably (the real-time frequency of the compressor is less than or equal to the maximum rated frequency of the compressor). This helps to ensure that the entire air-conditioning system can operate stably, so that the user can switch the air conditioner to other modes such as cooling mode for use.

[0082] Specifically, since the frequency of the compressor may not be overclocked when adjusting the coil temperature, the real-time frequency of the compressor can be compared with the maximum rated frequency of the compressor at the same time or after the air conditioner exits the deodorization mode; based on the comparison result, the compressor frequency is adjusted so that the real-time frequency of the compressor is less than or less than or equal to the maximum rated frequency of the compressor.

[0083] In the present invention, on the basis of being able to trigger the air conditioner to exit the deodorization mode through the timing condition, the control method further includes:

[0084] When or after the air conditioner exits the deodorization mode, obtaining the real-time rotation speed of the indoor fan; comparing the real-time rotation speed with a first preset rotation speed threshold;

[0085] If the real-time speed is less than or equal to the first preset speed threshold, the speed of the indoor fan is controlled to increase at the first preset speed change rate; or

[0086] If the real-time speed is greater than, equal to or greater than the first preset speed threshold, the speed of the indoor fan is controlled to increase at a second preset speed change rate, wherein the first preset speed change rate is greater than the second preset speed change rate.

[0087] Specifically, the first preset speed change rate may be 50 rpm / 2s. 2 The second preset speed change rate can be 50 rpm / 2s 2 After 2 seconds, wait for another 5 seconds. The first preset speed threshold can be 750 rpm. When the indoor fan speed starts to increase, if the real-time speed of the indoor fan is less than 750 rpm, the speed of the indoor fan is increased by 50 rpm / 2s. 2 If the real-time speed of the indoor fan is greater than or equal to 750 rpm, the speed change rate will be increased by 50 rpm / 2s. 2 After 2 seconds, wait for 5 seconds to increase the speed of the indoor fan. In particular, after the speed of the indoor fan reaches 800 rpm, if the wind speed changes too much, it is more likely to cause water blowing. In addition, before adjusting the speed of the indoor fan, if the compressor is in an overclocked state, first reduce the frequency of the compressor to less than or equal to the maximum rated frequency, for example, reduce the frequency of the compressor at a rate of 1 Hz / s, and then adjust the speed of the indoor fan. This is more conducive to protecting the entire air conditioning system.

[0088] By setting a first preset speed change rate with a larger value and a second preset speed change rate with a smaller value, not only can the speed of the indoor fan be gradually restored to the speed before entering the deodorization mode, so that the air conditioner can switch from the deodorization mode to the cooling mode more easily, but it can also avoid directly raising the speed of the indoor fan to the speed of the indoor fan before entering the deodorization mode, causing the air outlet speed of the indoor fan to increase rapidly, which is prone to water blowing and drying of the water film, thereby helping to maintain the stability of the covering water film used for deodorization.

[0089] The air conditioner further includes an air guide plate installed at the air outlet. When the timing condition can be triggered to cause the air conditioner to exit the deodorization mode, the control method provided in this embodiment further includes:

[0090] Before, during or after the air conditioner enters the deodorization mode, turn the air guide plate to the upward blowing position. In the deodorization mode, by adjusting the air guide plate of the air conditioner to the upward blowing position, it is possible to prevent the odor-carrying air from blowing directly onto the user, allowing the initial trace odor to spread and dilute to the upper part of the room, preventing the user from smelling it in a large area.

[0091] After the air conditioner exits the deodorization mode, the air guide plate is restored to the position before entering the deodorization mode. After exiting the deodorization mode, the air guide plate is restored to the position before the deodorization mode (i.e. the normal air outlet position) so that the user can use the air conditioner normally.

[0092] It can be understood that the detection and judgment steps in this embodiment can be performed in parallel with the steps in Example 1.

[0093] An embodiment of the present invention further provides an air conditioner, comprising a control device, the control device comprising a memory and a processor, the memory storing a computer program, and the processor being configured to execute the control method in any of the aforementioned technical solutions through the computer program.

[0094] In the description of the present invention, "processor" may include hardware, software or a combination of the two. The processor may be a central processing unit, a microprocessor, an image processor, a digital signal processor or any other suitable processor. The processor has data and / or signal processing functions. The processor may be implemented in software, hardware or a combination of the two. Non-temporary computer-readable storage media include any suitable medium that can store program code, such as a disk, a hard disk, an optical disk, a flash memory, a read-only memory, a random access memory, etc.

[0095] It is understood by those skilled in the art that all or part of the processes in the method for implementing the above-mentioned embodiments of the present invention may also be completed by hardware related to computer program instructions, and the computer program may be stored in a computer-readable storage medium, and the computer program, when executed by a processor, may implement the steps of the above-mentioned various method embodiments. Among them, the computer program includes computer program code, and the computer program code may be in source code form, object code form, executable file or some intermediate form, etc. The computer-readable storage medium may include: any entity or device, medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory, random access memory, electric carrier signal, telecommunication signal and software distribution medium, etc., which can carry the computer program code.

[0096] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A method for controlling an air conditioner, It is characterized in that The air conditioner includes a compressor, an indoor heat exchanger and an indoor fan, and the control method includes: When the air conditioner is turned on or after it is turned on, the air conditioner is put into a deodorization mode; The compressor is operated at a preset frequency, and the indoor fan is operated at a preset speed; Obtaining the real-time temperature of the coil of the indoor heat exchanger; Comparing the real-time temperature with a first preset temperature threshold and a second preset temperature threshold respectively, the first preset temperature threshold being less than the second preset temperature threshold; Based on the comparison result, the frequency of the compressor is adjusted so that the real-time temperature is between the first preset temperature threshold and the second preset temperature threshold, so that a water film can be generated on the surface of the fin of the indoor heat exchanger within a preset time.

2. The air conditioner control method according to claim 1, It is characterized in that The preset frequency is the maximum rated frequency of the compressor; and / or The preset speed is the minimum speed at which the indoor fan is allowed to operate.

3. The air conditioner control method according to claim 1 or 2, It is characterized in that The “adjusting the frequency of the compressor based on the comparison result so that the real-time temperature is between the first preset temperature threshold and the second preset temperature threshold” includes: If the real-time temperature is less than or equal to the first preset temperature threshold, the frequency of the compressor is reduced; or If the real-time temperature is greater than, equal to, or greater than the first preset temperature threshold, and less than, equal to, or less than the second preset temperature threshold, the compressor is operated at the current frequency; or If the real-time temperature is greater than or equal to the second preset temperature threshold, the frequency of the compressor is increased.

4. The air conditioner control method according to claim 3, It is characterized in that The compressor is an overclocked compressor, and the control method further comprises: After the frequency of the compressor is increased to the maximum rated frequency, if the real-time temperature is greater than the second preset temperature threshold, the compressor is controlled to be overclocked.

5. The air conditioner control method according to claim 1, It is characterized in that A temperature range that is greater than or equal to the first preset temperature threshold and less than or equal to the second preset temperature threshold is a preset temperature range, and the control method further includes: During the period when the air conditioner is in the deodorization mode, if the real-time temperature enters the preset temperature range and lasts for a first time period, starting a first timer; Afterwards, a second timer is used to record a second time duration during which the real-time temperature is out of the preset temperature range; Determine whether the second time duration is greater than or equal to a preset time duration threshold; if so, suspend the first timer until the real-time temperature enters the preset temperature range again and lasts for the first time duration, and then resume the first timer; if not, resume the first timer and reset the second timer; Obtaining the accumulated duration of the first timer; Determine whether the accumulated duration of the first timer reaches a first preset total duration threshold, and if so, make the air conditioner exit the deodorization mode.

6. The air conditioner control method according to claim 1, It is characterized in that The control method further comprises: When the air conditioner runs in the deodorization mode for a second preset total time threshold, the air conditioner is made to exit the deodorization mode.

7. The air conditioner control method according to claim 5 or 6, It is characterized in that The compressor is an overclocked compressor, and the real-time frequency of the compressor is adjusted to the maximum rated frequency of the compressor while or after the air conditioner exits the deodorization mode.

8. The air conditioner control method according to claim 5 or 6, It is characterized in that The control method further includes: When or after the air conditioner exits the deodorization mode, obtaining the real-time rotation speed of the indoor fan; Comparing the real-time rotation speed with a first preset rotation speed threshold; If the real-time rotation speed is less than or equal to the first preset rotation speed threshold, controlling the rotation speed of the indoor fan to increase at a first preset rotation speed change rate; or If the real-time speed is greater than, equal to or greater than the first preset speed threshold, the speed of the indoor fan is controlled to increase at a second preset speed change rate, wherein the first preset speed change rate is greater than the second preset speed change rate.

9. The air conditioner control method according to claim 5 or 6, It is characterized in that The air conditioner further includes an air guide plate installed at the air outlet, and the control method further includes: Before, simultaneously with or after the air conditioner enters the deodorization mode, rotating the air guide plate to an upward blowing position; or After the air conditioner is exited from the deodorization mode, the air guide plate is rotated to a normal air outlet position.

10. An air conditioner, It is characterized in that The air conditioner comprises a control device, the control device comprises a memory and a processor, the memory stores a computer program, and the processor is configured to execute the control method according to any one of claims 1 to 9 through the computer program.

Images