Control method of air conditioner and air conditioner

Abstract

The invention relates to the technical field of air conditioners, particularly provides an air conditioner control method and an air conditioner, and at least solves the problem that the use experience is reduced due to the fact that an air conditioner in the prior art is prone to mildewing and generating peculiar smell gas. The control method provided by the invention comprises the following steps: enabling the air conditioner to enter a peculiar smell removal mode; operating the compressor at a preset frequency; 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 rotating speed of an indoor fan 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 rotating speed of the indoor fan, the fins can generate a water film capable of covering peculiar smell, and the 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 wet, the water evaporates after the air conditioner is shut down for a long time, leaving traces in the air conditioner, which can easily cause the air conditioner to mold and produce odor. When the air conditioner is started again, it will blow out odorous gas, making the user feel uncomfortable and 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 in the prior art that air conditioners are prone to mold and produce odorous gases, 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: making the air conditioner enter a deodorization mode; making the compressor operate at a preset frequency; 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; based on the comparison result, adjusting the rotation speed of the indoor fan 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 allows the user to control the air conditioner to enter the deodorization mode as required. After entering the deodorization mode, the compressor is controlled to run at a preset frequency, and the rotation speed of the indoor fan 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 between a first preset temperature threshold and a second preset temperature threshold. Within this temperature range, a relatively stable covering water film can be quickly generated on the surface of the fin of the indoor heat exchanger. The fin surface is covered by the water film to prevent the odor on the fin surface from being carried out by the air. This can effectively reduce the occurrence of odor in the air-conditioning system, improve the quality and comfort of indoor air, and thus effectively improve the user experience.

[0006] In some feasible implementations of the above-mentioned air conditioner control method, the preset frequency is the maximum frequency at which the compressor is allowed to operate.

[0007] By using the highest frequency allowed for the compressor as the preset frequency, the coil temperature can be quickly reduced to close to the desired temperature.

[0008] In some feasible implementations of the above-mentioned air conditioner control method, the first preset temperature threshold is less than the second preset temperature threshold, and “adjusting the speed of the indoor fan 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, increasing the speed of the indoor fan; 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 indoor fan is operated at the current speed; or

[0011] If the real-time temperature is greater than or equal to the second preset temperature threshold, the rotation speed of the indoor fan is reduced.

[0012] It can be understood that when the speed of the indoor fan decreases, the air flow rate decreases, which helps to reduce the air speed through the fan coil, thereby reducing the efficiency of heat exchange, and the coil absorbs less heat from the air, thereby achieving the regulation demand of lowering the coil temperature; similarly, when the speed of the indoor fan increases, the air flow rate increases, which helps to increase the air speed through the fan coil, thereby speeding up the efficiency of heat exchange, and the coil absorbs more heat from the air, thereby achieving the regulation demand of increasing the coil temperature.

[0013] In some feasible implementations of the above-mentioned air conditioner control method, if the air conditioner is in cooling mode before the air conditioner enters the deodorization mode, the control method further includes: obtaining the real-time speed of the indoor fan while or after the air conditioner enters the deodorization mode; comparing the real-time speed with a first preset speed threshold; and adjusting the speed of the indoor fan to the preset speed based on the comparison result.

[0014] It should be noted that the preset speed is a set value close to the required speed of the indoor fan obtained by the tester based on the deodorization test. Under normal circumstances, the speed of the indoor fan in cooling mode is quite different from the speed required for the deodorization mode. Therefore, when the air conditioner switches from cooling mode to deodorization mode, the speed of the indoor fan can be adjusted to the preset speed first. This will help the indoor fan to reach the speed required for the deodorization mode more quickly, so that the air conditioner can quickly enter the deodorization mode, which is beneficial to improving the deodorization efficiency of the air conditioner.

[0015] In some feasible implementations of the above-mentioned air conditioner control method, “adjusting the speed of the indoor fan to a preset speed based on the comparison result” includes:

[0016] If the real-time rotation speed is greater than or equal to the first preset rotation speed threshold, the rotation speed of the indoor fan is reduced at a first preset rotation speed change rate; or

[0017] If the real-time speed is less than, equal to or less than the first preset speed threshold, the speed of the indoor fan is controlled to decrease at a second preset speed change rate, wherein the second preset speed change rate is less than the first preset speed change rate.

[0018] It should be noted that the value of the preset speed is less than the first preset speed threshold. When the real-time speed is greater than or equal to the first preset speed threshold, the real-time speed of the indoor fan can be adjusted to near the first preset speed threshold at a faster first preset speed change rate, and then the real-time speed of the indoor fan can be adjusted to near the preset speed at a smaller second preset speed change rate. This can effectively shorten the time for adjusting the real-time speed of the indoor fan to the preset speed, and avoid the need for the real-time speed of the indoor fan to be over-adjusted and adjusted back and forth, thereby reducing the fluctuation of the fan speed and ensuring that the indoor fan runs smoothly and efficiently.

[0019] 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:

[0020] 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;

[0021] 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;

[0022] 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, cause the air conditioner to exit the deodorization mode.

[0023] 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.

[0024] 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.

[0025] 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.

[0026] In some feasible implementations of the above-mentioned air conditioner control method, "making the air conditioner exit the deodorization mode" includes: obtaining the real-time rotation speed of the indoor fan;

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

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

[0029] Through the setting of the third preset speed change rate and the fourth preset speed change rate, in addition to allowing the speed of the indoor fan to gradually recover to the speed before entering the deodorization mode, so that the air conditioner can more easily switch from the deodorization mode to the cooling mode, it can also prevent the speed of the indoor fan from increasing too quickly, causing the air outlet speed of the indoor fan to increase rapidly, resulting in water blowing and drying of the water film, which is beneficial to maintaining the stability of the covering water film used for deodorization.

[0030] 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:

[0031] Before, simultaneously with or after the air conditioner enters the deodorization mode, rotating the air guide plate to an upward blowing position; or

[0032] After the air conditioner is exited from the deodorization mode, the air guide plate is restored to the position before entering the deodorization mode.

[0033] 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 on a large scale. After exiting the deodorization mode, the air guide plate can be restored to its position before the deodorization mode (that is, the normal air outlet position) so that the user can use the air conditioner normally.

[0034] 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 any of the aforementioned technical solutions through the computer program.

[0035] Those skilled in the art can understand that, since the air conditioner can execute the aforementioned air conditioner control method, 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

[0036] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0037] Figure 1 A flowchart of a method for controlling an air conditioner provided in Embodiment 1 of the present invention;

[0038] Figure 2 This is a flowchart of the air conditioner control method provided in Example 2 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 water is stuck on the fins of the air conditioner, the water evaporates after the air conditioner is shut down for a long time, leaving traces in the air conditioner, which can easily cause the air conditioner to become moldy and produce odor. When the air conditioner is started again, odorous gas will be blown out, making the user feel uncomfortable and 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] S10, making the air conditioner enter the deodorization mode.

[0048] Specifically, after receiving the deodorization instruction, the air conditioner enters the deodorization mode. The deodorization instruction may come from an instruction sent by the user to the air conditioner through a remote controller or other means, or the air conditioner may determine whether to actively execute the deodorization control logic or whether to remind the user to execute the deodorization control logic by analyzing the environmental parameters and historical operation data of the air conditioner.

[0049] It should be noted that the environmental parameters include the ambient temperature, ambient humidity or other environmental data, and the historical operation data of the air conditioner includes the previous air conditioner operation mode, the previous air conditioner operation time, the air conditioner shutdown time and other data. By comparing these parameter conditions with the corresponding set values, it can be determined whether it is necessary to actively execute the deodorization control logic or whether it is necessary to remind the user to execute the deodorization control logic. Among them, the environmental parameters and historical operation data can also be displayed to the user through the panel of the air conditioner to show the user the comparison between the current operation status of the air conditioner and the previous operation status. Of course, it is also possible to compare these parameter conditions with the corresponding set values ​​to enable the air conditioner itself to determine whether it is necessary to execute the deodorization control logic when it is turned on.

[0050] S20: Operate the compressor at a preset frequency.

[0051] Specifically, the preset frequency is the maximum frequency allowed for the compressor to operate. In particular, when the compressor is an overclocked compressor, the preset frequency is the maximum frequency allowed for the overclocked compressor to operate. By using the maximum frequency allowed for the compressor to operate as the preset frequency, the coil temperature can be quickly reduced to a temperature close to the desired temperature.

[0052] S30: 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] S40: 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] S50. Based on the comparison result, adjust the rotation speed of the indoor fan 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 rotation speed of an indoor fan so that the real-time temperature is between a first preset temperature threshold and a second preset temperature threshold.

[0058] Specifically, if the real-time temperature is less than or equal to the first preset temperature threshold, the speed of the indoor fan is increased. This is because when the speed of the indoor fan increases, the air flow increases, which helps to increase the air speed passing through the fan coil, thereby speeding up the efficiency of heat exchange, and the coil absorbs more heat in the air, thereby achieving the regulation demand of increasing the coil temperature.

[0059] If the real-time temperature is greater than or equal to the second preset temperature threshold, the speed of the indoor fan is reduced. This is because when the speed of the indoor fan is reduced, the air flow is reduced, which helps to reduce the air speed passing through the fan coil, thereby reducing the efficiency of heat exchange, and the coil absorbs less heat in the air, thereby achieving the regulation demand of reducing the coil temperature.

[0060] 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 indoor fan is operated at the current speed. By maintaining the indoor fan speed stable, the air flow and the air speed through the fan coil are also stable, and the heat exchange efficiency is also stable, so that the temperature of the coil can be maintained between the first preset temperature threshold and the second preset temperature threshold.

[0061] It should be noted that when the air conditioner enters the deodorization mode, when adjusting the real-time temperature of the coil, the speed of the indoor fan can be reduced at a larger speed change rate, and the speed of the indoor fan can be increased at a smaller speed change rate according to the comparison results of the real-time temperature with the first preset temperature threshold and the second preset temperature threshold respectively. This is conducive to maintaining the real-time temperature of the coil in a range less than or equal to the second preset temperature threshold for a long time, thereby helping to avoid the situation where the real-time temperature of the coil is too high for a long time and the evaporation efficiency of water is too high, affecting the formation of water film.

[0062] Specifically, when the real-time temperature of the coil is greater than or equal to the second preset temperature threshold, the speed of the indoor fan can be controlled to 50 revolutions per 2 seconds. 2 The speed change rate is reduced. When the real-time temperature of the coil is less than or equal to the first preset temperature threshold, the speed of the indoor fan can be controlled to 50 rpm / 2s. 2After 2 seconds, wait for the speed change rate to increase for 8 seconds, and then control the speed of the indoor fan to 50 rpm / 2s. 2 The acceleration increases, stops accelerating after 2 seconds, and then waits for 8 seconds before making the next round of speed adjustment.

[0063] The control method of the air conditioner provided by the present invention allows the user to control the air conditioner to enter the deodorization mode as required. After entering the deodorization mode, the compressor is controlled to run at a preset frequency, and the rotation speed of the indoor fan 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 specific temperature range between a first preset temperature threshold and a second preset temperature threshold. Within this temperature range, a relatively stable covering water film can be quickly generated on the surface of the fin of the indoor heat exchanger. The surface of the fin is covered by the water film to prevent the odor on the surface of the fin from being carried out by the air. This can effectively reduce the occurrence of odor in the air-conditioning system, improve the quality and comfort of indoor air, and thus effectively improve the user experience.

[0064] In addition, by adopting the deodorization mode, the odor removal operation can be performed quickly by running logic without increasing the hardware cost. Compared with the existing method of removing odors on the air-conditioning fins by physical spray, the present invention can remove odors more conveniently, thereby increasing the functional selling point of the air-conditioning.

[0065] Example 2

[0066] like Figure 2 As shown, on the basis of the above embodiment, in order to further improve the deodorization efficiency of the air conditioner, while or after controlling the air conditioner to enter the deodorization mode, the speed of the indoor fan is also adjusted to a preset speed.

[0067] Specifically, if the air conditioner is in the cooling mode before entering the deodorization mode, while or after the air conditioner enters the deodorization mode, the control method further includes:

[0068] S101. Obtain the real-time rotation speed of the indoor fan.

[0069] S102: Compare the real-time rotation speed with a first preset rotation speed threshold.

[0070] S103: adjusting the speed of the indoor fan to a preset speed based on the comparison result.

[0071] It should be noted that the preset speed is a set value close to the required speed of the indoor fan obtained by the tester based on the deodorization test. Under normal circumstances, the speed of the indoor fan in cooling mode is quite different from the speed required for the deodorization mode. Therefore, when the air conditioner switches from cooling mode to deodorization mode, the speed of the indoor fan can be adjusted to the preset speed first. This will help the indoor fan to reach the speed required for the deodorization mode more quickly, so that the air conditioner can quickly enter the deodorization mode, which is beneficial to improving the deodorization efficiency of the air conditioner.

[0072] In addition, steps S101 - S103 may be performed before, simultaneously with, or after step S20 of embodiment 1.

[0073] This embodiment provides a method for adjusting the rotation speed of an indoor fan to a preset rotation speed.

[0074] Specifically, if the real-time rotation speed is greater than or equal to a first preset rotation speed threshold, the rotation speed of the indoor fan is reduced at a first preset rotation speed change rate.

[0075] It should be noted that in actual usage scenarios, users generally find that there is an odor in the air exhausted by the air conditioner during the use of the air conditioner. When the user wants to remove the odor from the air conditioner, the air conditioner is usually switched from cooling mode to deodorization mode. Since a relatively stable covering water film needs to be generated, there are also requirements for the exhaust volume of the air conditioner. Reducing the exhaust volume of the indoor fan is more conducive to forming a stable covering water film. Therefore, the speed of the indoor fan required for the deodorization mode is generally lower than the speed of the indoor fan in the cooling mode. In this usage scenario, the present invention first reduces the speed of the indoor fan when the air conditioner enters the deodorization mode from the cooling mode. This can facilitate the indoor fan to reach the speed required for the deodorization mode more quickly, so that the air conditioner can quickly enter the deodorization mode, which is beneficial to improving the deodorization efficiency of the air conditioner.

[0076] If the real-time speed is less than, equal to or less than the first preset speed threshold, the speed of the indoor fan is controlled to decrease at a second preset speed change rate, wherein the second preset speed change rate is less than the first preset speed change rate.

[0077] It should be noted that the value of the preset speed is less than the first preset speed threshold. When the real-time speed is greater than or equal to the first preset speed threshold, the real-time speed of the indoor fan can be adjusted to near the first preset speed threshold at a faster first preset speed change rate, and then the real-time speed of the indoor fan can be adjusted to near the preset speed at a smaller second preset speed change rate (more accurately). This can effectively shorten the time for adjusting the real-time speed of the indoor fan to the preset speed, and avoid the real-time speed of the indoor fan being adjusted too quickly at once, resulting in the real-time speed of the indoor fan differing too much from the preset speed and requiring back and forth adjustment. At the same time, it can also appropriately reserve adjustment time for the real-time temperature of the coil to keep up with the change in the indoor fan speed, thereby ensuring that the indoor fan runs smoothly and efficiently.

[0078] The first preset speed change rate can be 50 rpm / 2s. 2 The second preset speed change rate can be 50 rpm / 2s 2 After 2 seconds, wait for 8 seconds before adjusting the speed. The first preset speed threshold can be 750 rpm. That is to say, when the speed of the indoor fan is above 750 rpm, the speed is adjusted at 50 rpm / 2s. 2 If the speed of the indoor fan is lower than 750 rpm, the speed will be reduced by 50 rpm / 2s. 2 After 2 seconds, wait for 8 seconds to reduce the speed. Of course, the above values ​​are only a set of values ​​provided in this embodiment, and the first preset speed change rate, the second preset speed change rate and the first preset speed threshold value can also use other values. The specific values ​​can be set according to actual conditions, and this embodiment will not be repeated one by one.

[0079] Example 3

[0080] 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:

[0081] S301, making the air conditioner enter the deodorization mode.

[0082] S302: 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;

[0083] 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;

[0084] 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.

[0085] 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.

[0086] 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.

[0087] 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.

[0088] 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 when the second time is greater than or equal to the preset time threshold, the first timer will stop timing. 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.

[0089] In addition, this embodiment also provides another timing condition, so the control method of this embodiment also includes:

[0090] S303: When the air conditioner runs in the deodorization mode for a total time period reaching a second preset threshold, the air conditioner is exited from the deodorization mode.

[0091] 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.

[0092] 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.

[0093] 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.

[0094] In the present invention, on the basis that the air conditioner can be triggered to exit the deodorization mode by the timing condition, “exiting the air conditioner from the deodorization mode” includes:

[0095] Get the real-time speed of the indoor fan;

[0096] If the real-time speed is less than or equal to the second preset speed threshold, the speed of the indoor fan is controlled to increase at a third preset speed change rate;

[0097] If the real-time speed is greater than, equal to or greater than the second preset speed threshold, the speed of the indoor fan is controlled to increase at a fourth preset speed change rate, wherein the third preset speed change rate is greater than the fourth preset speed change rate.

[0098] Specifically, the third preset speed change rate may be 50 rpm / 2s. 2 The fourth preset speed change rate can be 50 rpm / 2s 2 After 2 seconds, wait for 5 seconds before adjusting the speed. The second preset speed threshold can be 750 rpm. When the indoor fan speed is increased, if the real-time speed of the indoor fan is less than 750 rpm, the speed of the indoor fan is adjusted at 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, water blowing is more likely to occur.

[0099] By setting a third preset speed change rate with a larger value and a fourth 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.

[0100] 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:

[0101] 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.

[0102] 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.

[0103] It can be understood that the detection and judgment steps in this embodiment can be performed in parallel with the steps in Embodiment 1 and Embodiment 2.

[0104] 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.

[0105] 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.

[0106] 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 may implement the steps of the above-mentioned various method embodiments when executed by a processor. 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 computer program code.

[0107] 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, characterized in that: The air conditioner includes a compressor, an indoor heat exchanger and an indoor fan, and the control method includes: causing the air conditioner to enter a deodorization mode; operating the compressor at a preset frequency; 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; Based on the comparison result, the rotation speed of the indoor fan 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, characterized in that: The preset frequency is the maximum frequency at which the compressor is allowed to operate.

3. The air conditioner control method according to claim 1, characterized in that: The first preset temperature threshold is less than the second preset temperature threshold, and “based on the comparison result, adjusting the speed of the indoor fan 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, increasing the speed of the indoor fan; 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 indoor fan is operated at the current speed; or If the real-time temperature is greater than or equal to the second preset temperature threshold, the rotation speed of the indoor fan is reduced.

4. The air conditioner control method according to claim 1, characterized in that: If the air conditioner is in a cooling mode before entering the deodorization mode, the control method further includes: While or after the air conditioner enters 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; The rotation speed of the indoor fan is adjusted to a preset rotation speed based on the comparison result.

5. The air conditioner control method according to claim 4, characterized in that: “Adjusting the speed of the indoor fan to a preset speed based on the comparison result” includes: If the real-time rotation speed is greater than or equal to the first preset rotation speed threshold, the rotation speed of the indoor fan is reduced at a first preset rotation speed change rate; or If the real-time speed is less than, equal to or less than the first preset speed threshold, the speed of the indoor fan is controlled to decrease at a second preset speed change rate, wherein the second preset speed change rate is less than the first preset speed change rate.

6. The air conditioner control method according to claim 1, 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.

7. The air conditioner control method according to claim 1, 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.

8. The air conditioner control method according to claim 6 or 7, characterized in that: “Causing the air conditioner to exit the deodorization mode” includes: Obtaining the real-time rotation speed of the indoor fan; If the real-time rotation speed is less than or equal to the second preset rotation speed threshold, controlling the rotation speed of the indoor fan to increase at a third preset rotation speed change rate; or If the real-time speed is greater than, equal to or greater than the second preset speed threshold, the speed of the indoor fan is controlled to increase at a fourth preset speed change rate, wherein the third preset speed change rate is greater than the fourth preset speed change rate.

9. The air conditioner control method according to claim 6 or 7, 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 restored to the position before entering the deodorization mode.

10. An air conditioner, 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.

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