Air conditioner odor prevention control method, device and air conditioner

Abstract

The present invention discloses an air conditioner anti-odor control method, device and air conditioner. The air conditioner is provided with a first anti-odor processing program, the method comprising: obtaining the condensation water condition on the surface of the indoor heat exchanger during the refrigeration process; judging whether the air conditioner operation meets the first odor generation condition based on the condensation water condition; if the first odor generation condition is met, executing the first anti-odor processing program. The present invention judges whether the air conditioner operation meets the first odor generation condition by determining the condensation water condition on the surface of the indoor heat exchanger, and is used to deal with the pungent odor emitted by the internal materials of the air conditioner during the refrigeration process. This method of achieving the anti-odor function by adjusting the control program does not require the installation of complex devices, has low cost, good effect, and good anti-odor effect.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to an air conditioner anti-odor control method, device and air conditioner. Background Art

[0002] The air conditioner will produce an odor during the cooling process. This odor will be blown into the space where the user is as the fan rotates, causing a decline in indoor air quality, greatly affecting the user experience, and causing a large number of user complaints.

[0003] There are two reasons why air conditioners produce odors: First, the air conditioner's internal environment is damp, with accumulated dust and mold, which can cause odors to be released after the unit is turned on. This odor typically occurs when the unit is turned on after a period of inactivity or when the indoor environment is hot and humid. The odor disappears after a period of use. Second, the pungent odor is emitted by materials within the air conditioner, such as the hydrophilic coating on the fins, sponges, and plastics. The odor emitted by the coating as condensed water evaporates is more noticeable and common.

[0004] Currently, common methods for dealing with odors in air conditioners on the market include using self-cleaning and sterilization systems, ultraviolet sterilization, and installing air filtration and adsorption devices. While all of these methods can effectively eliminate the first type of odor, traditional self-cleaning and ultraviolet sterilization are less effective for the second type. While installing air filtration or adsorption devices can achieve odor removal, they increase costs. Summary of the Invention

[0005] In view of this, the present invention discloses an air conditioner odor prevention control method, device and air conditioner, which are used to solve the problem of high cost of existing air conditioner odor prevention methods.

[0006] In order to achieve the above-mentioned objectives, the present invention adopts the following technical solutions:

[0007] A first aspect of the present invention discloses an air conditioner anti-odor control method, wherein the air conditioner is provided with a first anti-odor treatment program and a second anti-odor treatment program, and the method comprises:

[0008] After the air conditioner is turned on for cooling, indoor environmental parameters and / or the downtime of the air conditioner are obtained;

[0009] Determine whether the air conditioner operation meets the second odor generation condition based on indoor environmental parameters and / or downtime;

[0010] If the second odor generation condition is met, the second anti-odor treatment procedure is executed;

[0011] If the second odor generation condition is not met, determine the condensation water condition on the indoor heat exchanger surface;

[0012] Determine whether the air conditioner operation meets the first odor generation condition based on the condensed water situation;

[0013] If the first odor generation condition is met, the first anti-odor treatment procedure is executed.

[0014] A second aspect of the present invention discloses an air conditioner anti-odor control method, wherein the air conditioner is provided with a first anti-odor processing program, and the method comprises:

[0015] During the cooling process, obtain the condensation water situation on the surface of the indoor heat exchanger;

[0016] Determine whether the air conditioner operation meets the first odor generation condition based on the condensed water situation;

[0017] If the first odor generation condition is met, the first anti-odor treatment procedure is executed.

[0018] Further optionally, determining the condensation water condition on the surface of the indoor heat exchanger includes:

[0019] Get the indoor ambient temperature T0 and the indoor set temperature, and calculate the difference between the two;

[0020] When the difference is within a first set range, recording the compressor operating time, and / or obtaining the surface humidity of the indoor heat exchanger;

[0021] Determine condensation based on compressor operating hours and / or indoor heat exchanger surface humidity.

[0022] Further optionally, judging whether the air conditioner operation satisfies the first odor generation condition based on the condensed water condition includes:

[0023] comparing the indoor heat exchanger surface humidity with a first set humidity, and / or comparing the compressor operating time with a set operating time;

[0024] When the surface humidity of the indoor heat exchanger is less than or equal to the first set humidity, and / or when the compressor operation time is greater than the set operation time, the air-conditioning operation is deemed to meet the first odor generation condition.

[0025] Further optionally, executing the first anti-odor treatment procedure includes:

[0026] Control the compressor to increase the frequency and / or control the indoor fan to reduce the speed to slow down the evaporation of condensed water on the surface of the indoor heat exchanger.

[0027] Further optionally, after the compressor frequency is increased and / or the indoor fan speed is decreased, the method further includes:

[0028] Obtaining the indoor ambient temperature T1, and determining whether the difference between the indoor ambient temperature T1 and the indoor set temperature is less than or equal to the lower limit of the first set range;

[0029] If it is less than, the air conditioner will be shut down.

[0030] Further optionally, an air guide plate is provided at the air outlet of the air conditioner, and when the air conditioner is restarted, executing the first anti-odor treatment program further includes:

[0031] Control the air guide plate to move from the current position to the anti-direct blowing position or the closed position, and / or control the indoor fan to reverse;

[0032] Obtain the indoor heat exchanger tube temperature and compare the indoor heat exchanger tube temperature with the current dew point temperature;

[0033] When the indoor heat exchanger tube temperature is less than or equal to the current dew point temperature, the air guide plate is controlled to return to the current position, and / or the indoor fan is controlled to resume forward rotation.

[0034] Further optionally, after the air conditioner is shut down, the method further includes:

[0035] Obtaining the indoor ambient temperature T2, and determining whether the difference between the indoor ambient temperature T2 and the indoor set temperature is greater than or equal to an upper limit value of a first set range;

[0036] If it is greater than or equal to, control the air conditioner to restart.

[0037] Further optionally, the air conditioner is further provided with a second anti-odor program, and the method further comprises:

[0038] After the air conditioner is turned on for cooling, indoor environmental parameters and / or the downtime of the air conditioner are obtained;

[0039] Determine whether the air conditioner operation meets the second odor generation condition based on indoor environmental parameters and / or downtime;

[0040] If the second odor generation condition is met, the second anti-odor treatment procedure is executed.

[0041] Further optionally, the indoor environmental parameters include indoor environmental temperature and indoor environmental humidity, and judging whether the air-conditioning operation satisfies the second odor generation condition according to the indoor environmental parameter values ​​and / or the downtime includes:

[0042] comparing the indoor ambient temperature with a temperature threshold, comparing the indoor ambient humidity with a humidity threshold, and / or comparing the downtime with a preset threshold;

[0043] When the indoor ambient temperature is greater than the humidity threshold, the indoor ambient humidity is greater than the humidity threshold, and / or the shutdown time is greater than the preset threshold, the air conditioning operation is deemed to meet the second odor generation condition.

[0044] Further optionally, performing a second anti-odor treatment procedure includes:

[0045] Control the air guide plate of the air conditioner to move to the anti-direct blowing position, control the indoor fan to reverse, and run at the set speed.

[0046] Further optionally, performing the second anti-odor treatment procedure further includes:

[0047] Obtaining an odor detection value in the indoor unit cavity and comparing the odor detection value with a set odor value;

[0048] When the odor detection value does not exceed the set odor value, the air guide plate is controlled to return to the set position, the indoor fan is controlled to resume forward rotation, and the second anti-odor processing program is exited.

[0049] Further optionally, an air inlet baffle is provided at the air inlet of the air conditioner, and the second anti-odor treatment procedure is performed, further comprising:

[0050] Control the air inlet baffle to move to a first set position.

[0051] Further optionally, before controlling the air guide plate to return to the preset position and controlling the indoor fan to resume forward rotation, the method further includes:

[0052] Control the air inlet baffle to move to the second set position and run for the set time;

[0053] The opening degree of the first setting position is smaller than the opening degree of the second setting position.

[0054] The third aspect of the present invention discloses an air-conditioning control device, which includes one or more processors and a non-temporary computer-readable storage medium storing program instructions. When the one or more processors execute the program instructions, the one or more processors are used to implement any one of the anti-odor methods in the first aspect.

[0055] A fourth aspect of the present invention discloses an air conditioner, which adopts the anti-odor method provided by any one of the first aspects, or includes the air conditioner control device provided by the second aspect.

[0056] Beneficial Effects: The odor control method of the present invention provides different strategies for dealing with odors that occur during air conditioning use. The odor control function is achieved by adjusting the control program, without the need to install complex devices. It is low-cost and effective, and has a good odor control effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] The above and other objects, features, and advantages of the present invention will become more apparent by describing in detail exemplary embodiments thereof with reference to the accompanying drawings. The drawings described below are only some embodiments disclosed in the present invention. It is obvious to a person skilled in the art that other drawings can be derived from these drawings without inventive effort.

[0058] Figure 1 A flow chart of an air conditioner anti-odor control method according to an embodiment of the present invention is shown.

[0059] Figure 2a A flow chart of an air conditioner anti-odor control method according to another embodiment of the present invention is shown.

[0060] Figure 2b A flow chart of an air conditioner anti-odor control method according to another embodiment of the present invention is shown.

[0061] Figure 3a A flow chart of an air conditioner anti-odor control method according to another embodiment of the present invention is shown.

[0062] Figure 3b A flow chart of an air conditioner anti-odor control method according to another embodiment of the present invention is shown.

[0063] Figure 4 A flow chart of an air conditioner anti-odor control method according to a specific embodiment of the present invention is shown.

[0064] Figure 5 A flow chart of an air conditioner anti-odor control method according to a specific embodiment of the present invention is shown.

[0065] Figure 6 A flow chart of an air conditioner anti-odor control method according to a specific embodiment of the present invention is shown.

[0066] Figure 7 A flow chart of an air conditioner anti-odor control method according to a specific embodiment of the present invention is shown.

[0067] Figure 8 A flow chart of an air conditioner anti-odor control method according to a specific embodiment of the present invention is shown.

[0068] Figure 9 A flow chart of an air conditioner anti-odor control method according to a specific embodiment of the present invention is shown. DETAILED DESCRIPTION

[0069] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0070] The terms used in the embodiments of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The singular forms "a," "the," and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates otherwise. "A plurality" generally includes at least two, but does not exclude the inclusion of at least one.

[0071] It should be understood that the term "and / or" as used herein is merely a description of the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0072] It should also be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a product or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such product or system. In the absence of further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the product or system comprising the element.

[0073] There are two reasons why air conditioners produce odors. First, the internal environment is damp, dust accumulates, and mold grows, leading to the odor being released upon startup. This odor typically occurs when the air conditioner is turned on after a period of inactivity or when the indoor environment is hot and humid. It disappears after a while. Second, the pungent odor is emitted by internal materials, such as the hydrophilic coating on the fins, sponges, and plastics. The odor emitted by this coating as condensate evaporates is particularly noticeable and common. This odor typically develops after a period of cooling, when the room temperature reaches or approaches the setpoint. When the room temperature approaches or reaches the setpoint, the compressor operates at a low frequency or stops, causing the internal pipe temperature to rise. Condensate adhering to the upper surface of the heat exchanger evaporates, and when this evaporation occurs, the fin coating also evaporates, releasing the odor as the internal fan rotates. This odor can occur multiple times during the cooling process, significantly impacting the user experience.

[0074] To solve the problem of high cost of existing air conditioner odor prevention methods, the present invention provides an air conditioner odor prevention control method with the following overall control concept:

[0075] The first aspect of this embodiment provides an air conditioner anti-odor control method, wherein the air conditioner is provided with a first anti-odor processing program and a second anti-odor processing program, combined with Figure 1 , the method comprising:

[0076] S1, after the air conditioner is turned on for cooling, obtaining indoor environmental parameters and / or the air conditioner shutdown time;

[0077] S2, judging whether the air conditioner operation satisfies the second odor generation condition based on indoor environmental parameters and / or downtime;

[0078] S3, if the second odor generation condition is met, executing the second anti-odor treatment procedure;

[0079] S4, if the second odor generation condition is not met, determining the condensation water condition on the indoor heat exchanger surface;

[0080] S5, judging whether the air conditioner operation meets the first odor generation condition based on the condensed water condition;

[0081] S6: If the first odor generation condition is met, execute the first anti-odor treatment procedure.

[0082] Whether the air conditioner operation meets the second odor generation condition is determined by indoor environmental parameters and / or downtime duration, which is used to deal with odors that occur when the air conditioner is not used for a long time or when the indoor environment is high in humidity and heat. By determining the condensation water on the surface of the indoor heat exchanger, it is determined whether the air conditioner operation meets the first odor generation condition, which is used to deal with the pungent odor emitted by the internal materials of the air conditioner during the refrigeration process. The anti-odor treatment method provided in this embodiment provides different response strategies for the causes of odors during the use of the air conditioner. The anti-odor function is mainly achieved by adjusting the control program, without the need to install complex equipment, with low cost and good effect.

[0083] The second aspect of this embodiment provides an air conditioner anti-odor control method, the air conditioner is provided with a first anti-odor processing program, combined with Figure 2a , the method includes S4 to S6, wherein:

[0084] S4, during the cooling process, determining the condensation water condition on the indoor heat exchanger surface;

[0085] S5, judging whether the air conditioner operation meets the first odor generation condition based on the condensed water condition;

[0086] S6: If the first odor generation condition is met, execute the first anti-odor treatment procedure.

[0087] In this embodiment, the presence of condensed water on the indoor heat exchanger surface is determined to determine whether the air conditioner's operation meets the first odor generation condition. This is used to address the pungent odor emitted by the air conditioner's internal materials during cooling. This odor prevention function, achieved by adjusting the control program, eliminates the need for complex equipment, is cost-effective, and offers excellent odor prevention results.

[0088] Further optionally, combined with Figure 2b , S4 includes S41 to S43, among which:

[0089] S41, obtaining the indoor ambient temperature T0 and the indoor set temperature, and calculating the difference between the two;

[0090] S42, when the difference is within a first set range, recording the compressor operating time and / or obtaining the surface humidity of the indoor heat exchanger;

[0091] Specifically, the indoor ambient temperature T0 and the indoor heat exchanger surface humidity are obtained in real time or at regular intervals;

[0092] S43: Determine the condensation water condition based on the compressor operation time and / or the surface humidity of the indoor heat exchanger.

[0093] There are two reasons why air conditioners produce odors. One is the pungent smell emitted by the internal materials of the air conditioner, such as the hydrophilic coating, sponge, and plastic on the fins. Among them, the odor emitted by the coating as the condensed water evaporates is more obvious and common. During the refrigeration process, this type of odor usually appears after a period of refrigeration, when the indoor temperature reaches / approaches the set temperature point. When the indoor temperature approaches / reaches the set temperature point, the compressor runs at a low frequency / stops, the internal pipe temperature rises, and the condensed water attached to the upper surface of the heat exchanger evaporates. When the evaporation amount is large, the substances on the fin coating will also evaporate in large quantities, and the odor will be blown out when the internal fan rotates. This odor can appear many times during the refrigeration process, which greatly affects the user experience. The method provided in this embodiment is mainly aimed at this type of odor.

[0094] When the difference is within the first set range, indicating that the indoor ambient temperature is close to the indoor set temperature, the compressor will reduce its frequency. During the period from low-frequency operation to shutdown, the indoor heat exchanger tube temperature will rise, the indoor fan will continue to rotate, and the condensed water adhering to the indoor heat exchanger surface will gradually evaporate. When the evaporation rate is large, the coating material on the heat exchanger surface will also evaporate, resulting in an unusually unpleasant sour odor. By recording the compressor operating time t, that is, recording the length of time the compressor has been running at the current low frequency, the evaporation of the condensed water on the indoor heat exchanger surface can be determined, thereby determining when to perform anti-odor treatment on the air conditioner. In addition, the air conditioner involved in this embodiment is equipped with a humidity sensor for detecting the humidity on the indoor heat exchanger surface. By detecting the humidity on the indoor heat exchanger surface, it is possible to determine whether there is residual condensed water on the indoor heat exchanger, thereby determining when to perform anti-odor treatment on the air conditioner.

[0095] Further optionally, S5 includes S51 to S52, wherein:

[0096] S51, comparing the indoor heat exchanger surface humidity with a set humidity, and / or comparing the compressor operating time with a set operating time;

[0097] S52: When the surface humidity of the indoor heat exchanger is less than or equal to the set humidity, and / or when the compressor operation time is greater than the set operation time, a first anti-odor treatment program is executed.

[0098] The first implementation method is to judge the condensation water situation on the surface of the indoor heat exchanger by comparing the surface humidity d of the indoor heat exchanger with the set humidity d0. If d>d0, it indicates that the current humidity is relatively high, there is residual condensation water on the indoor heat exchanger, and no odor is emitted. At this time, the air conditioner can continue to operate with the current operating parameters for cooling. On the contrary, if d≤d0, the first anti-odor treatment procedure is executed.

[0099] As a parallel implementation method, compare the current low-frequency operation time t with the preset low-frequency operation time t0. If t≤t0, it indicates that the current low-frequency operation time is short, the evaporation of condensed water on the heat exchanger is small, and no odor is emitted. At this time, the air conditioner can continue to operate in a cooling manner with the current operating parameters. If t>t0, it indicates that the current prototype low-frequency operation time is too long, the evaporation of condensed water on the heat exchanger surface is relatively large, and the first anti-odor treatment procedure is executed.

[0100] As another parallel implementation method, on the one hand, it is judged whether the running time of the compressor in the low-frequency state meets the time setting requirements, and on the other hand, it is judged whether the surface humidity of the indoor heat exchanger meets the humidity setting requirements. As long as one of the judgment results is yes, the first anti-odor treatment program is executed, which makes the anti-odor effect of the air conditioner more guaranteed.

[0101] Further optionally, the execution of the first anti-odor treatment procedure in the above embodiment includes step A1:

[0102] A1: Control the compressor to increase the frequency and / or control the indoor fan to reduce the speed to slow down the evaporation of condensed water on the surface of the indoor heat exchanger.

[0103] By controlling the compressor to increase its frequency, the cooling capacity is increased and the internal pipe temperature is reduced. If the user sets the wind speed to a low wind speed or above, the wind speed will be changed to make the internal fan run at a lower wind speed. When the user sets it to a low wind speed or below, it will run at the current wind speed, thereby slowing down the evaporation of condensed water on the surface of the heat exchanger.

[0104] It is preferred to increase the compressor frequency by a certain amount based on the current frequency. The increased frequency is generally set at 5-10Hz, for example, 5Hz. This can reduce the internal pipe temperature while ensuring the indoor air outlet temperature is comfortable.

[0105] Further optionally, after the compressor frequency is increased and / or the indoor fan speed is decreased, the method further includes S7 to S8, wherein:

[0106] S7, obtaining the indoor ambient temperature T1, and determining whether the difference between the indoor ambient temperature T1 and the indoor set temperature is less than or equal to the lower limit of the first set range;

[0107] Specifically, the indoor ambient temperature after the compressor frequency is increased and / or the indoor fan speed is decreased is recorded as T1, and the acquisition method is real-time or once every certain time interval;

[0108] S8, if it is less than, control the air conditioner to stop.

[0109] When the difference between the indoor ambient temperature T1 and the indoor set temperature Ts is less than or equal to the lower limit of the first set range, it indicates that the indoor ambient temperature has reached the shutdown temperature point, and the air conditioner is shut down.

[0110] Further optionally, an air guide plate is provided at the air outlet of the air conditioner. When the air conditioner is restarted, the first anti-odor treatment procedure further includes steps A2 to A4, wherein:

[0111] A2: Control the air guide plate to move from its current position to the anti-direct blowing position or closed position, and / or control the indoor fan to reverse direction;

[0112] A3, obtains the indoor heat exchanger tube temperature and compares it with the current dew point temperature;

[0113] A4: When the indoor heat exchanger tube temperature is less than or equal to the current dew point temperature, the air guide plate is controlled to return to the current position, and / or the indoor fan is controlled to resume forward rotation.

[0114] The air conditioner involved in this embodiment has an air guide plate that can be controlled to move, and is preferably provided with an anti-direct blowing position (anti-cold wind position). After the temperature point is reached and the machine is shut down, the indoor temperature gradually rises, the internal pipe temperature also rises, and the condensed water on the heat exchanger continues to evaporate. When it is detected that the difference between the indoor temperature and the set temperature is large, the compressor will start cooling again. At this time, in order to prevent the odor from being emitted from the heat exchanger coating, the internal machine air guide plate will be adjusted synchronously after the compressor is started, and adjusted to the anti-cold wind position or closed position to avoid odor blowing out. After the internal pipe temperature drops to temperature T3, it is assumed that the condensed water on the surface of the heat exchanger is condensed in an appropriate amount and no odor will be blown out. At this time, the position of the air guide plate is adjusted to the set position.

[0115] Furthermore, after the air conditioner is shut down, the method further includes S6 to S7, wherein:

[0116] S6, obtaining the indoor ambient temperature T2, and determining whether the difference between the indoor ambient temperature T2 and the indoor set temperature is greater than or equal to the upper limit of the first set range;

[0117] S7, if it is greater than or equal to, control the air conditioner to restart.

[0118] Furthermore, the air conditioner has a second anti-odor treatment process to deal with the odor caused by long periods of inactivity or when the internal environment is humid. This odor usually only appears when the air conditioner is turned on, disappears with the wind, and does not reappear.

[0119] Combine Figure 3a The method further comprises steps S1 to S3, wherein:

[0120] S1, after the air conditioner is turned on for cooling, obtaining indoor environmental parameters and / or the air conditioner shutdown time;

[0121] S2, judging whether the air conditioner operation satisfies the second odor generation condition based on indoor environmental parameters and / or downtime;

[0122] S3: If the second odor generation condition is met, execute the second anti-odor treatment procedure.

[0123] The system uses indoor environmental parameters and / or downtime to determine whether the air conditioner meets the second odor generation condition. This is used to address odors that may occur when the air conditioner is not used for a long time or when the indoor environment is high in humidity and heat. This odor prevention function, which is achieved by adjusting the control program, does not require the installation of complex equipment, is low-cost, and has a high degree of effectiveness.

[0124] Furthermore, indoor environmental parameters include indoor ambient temperature and indoor ambient humidity, combined with Figure 3b , S2 includes S21 to S22, where:

[0125] S21, comparing the indoor ambient temperature with a temperature threshold, comparing the indoor ambient humidity with a humidity threshold, and / or comparing the downtime with a preset threshold;

[0126] S22: When the indoor ambient temperature is greater than the humidity threshold, the indoor ambient humidity is greater than the humidity threshold, and / or the downtime is greater than the preset threshold, the air conditioner operation is deemed to meet the second odor generation condition.

[0127] When the indoor ambient temperature is greater than the humidity threshold, and the indoor ambient humidity is greater than the humidity threshold, it is considered that the indoor environment of the air conditioner is in a high temperature and high humidity state. When the downtime is greater than the preset threshold, it is considered that the air conditioner has not been turned on for a long time or is turned on for the first time. As long as one of the above two situations meets the conditions, the air conditioner operation is considered to meet the second odor generation condition.

[0128] Further optionally, the second anti-odor treatment procedure in the above embodiment includes step B1:

[0129] B1 controls the air guide plate of the air conditioner to move to the anti-direct blowing position, controls the indoor fan to reverse, and runs at the set speed.

[0130] Further optionally, performing the second anti-odor treatment procedure further includes steps B2 to B3, wherein:

[0131] B2, obtaining the odor detection value in the indoor unit cavity and comparing the odor detection value with the set odor value;

[0132] B3, when the odor detection value does not exceed the set odor value, the air guide plate is controlled to return to the set position, the indoor fan is controlled to resume forward rotation, and the second anti-odor processing program is exited.

[0133] The air conditioner in this embodiment has an odor detection sensor installed within the indoor unit. After the air conditioner is turned on and cooling, the air deflector is first moved to the anti-direct blowback position, and the indoor fan is reversed, swapping the functions of the air inlet and outlet. The air conditioner operates at the lowest speed setting, ensuring that the airflow does not blow directly on people and that any odor emitted by the air conditioner is largely harmless, thus achieving odor removal. The air conditioner operates in this manner for a period of time. When the odor detection value does not exceed the set odor threshold, the air deflector is returned to its original position, and the indoor fan is reset to forward rotation, operating at the set speed setting.

[0134] Furthermore, an air inlet baffle is provided at the air inlet of the air conditioner. After the indoor fan is controlled to reverse, a second anti-odor treatment procedure is executed, which also includes steps B4 to B5, wherein:

[0135] B4, controlling the air inlet damper to move to a first set position. The first set position is preferably the minimum opening position of the air inlet damper;

[0136] B5, before controlling the air guide plate to return to the preset position and controlling the indoor fan to resume forward rotation, the method further includes step B5:

[0137] B5, controlling the air inlet baffle to move to a second set position and run for a set time; wherein the opening degree of the first set position is smaller than the opening degree of the second set position.

[0138] For models with an air inlet baffle, position the air guide to prevent direct blowback, reverse the fan, and start running at the lowest setting. Simultaneously, monitor the air quality within the internal unit cavity, and then open the air inlet baffle to its lowest setting. At this point, ventilation at the inlet and outlet is relatively poor, and the air flow within the internal unit cavity is turbulent. Odors will not be blown directly toward the user, but will dissipate relatively slowly into the air, minimizing their impact. Furthermore, determine whether the current air quality is good. If so, open the air inlet baffle to its maximum setting and continue operating for t2 seconds. This step removes any residual odor from the internal unit cavity.

[0139] The following is for Figure 4-Figure 9 , the air conditioning odor prevention method provided in this embodiment is elaborated in detail.

[0140] Solution 1

[0141] Combine Figure 4 , the method comprising:

[0142] Step 101, obtaining the current indoor temperature T0 and the air conditioning set temperature Ts;

[0143] Step 102: Compare the difference between the current indoor temperature T0 and the set temperature Ts with δT1 and δT2. If δT2 ≤ T0 - Ts ≤ δT1, it indicates that the current indoor temperature is close to the set temperature. At this time, the compressor runs at the lowest frequency and executes step 103. Otherwise, continue cooling operation with the current parameters and return to step 101.

[0144] Step 103: Obtain the humidity d detected by the humidity sensor. The humidity detected by the humidity sensor is not the indoor ambient humidity, but the surface humidity of the indoor unit heat exchanger.

[0145] Step 104: compare the difference between the current humidity d and the preset humidity d0. If d>d0, it indicates that the current humidity is high and there is residual condensed water on the heat exchanger. In this case, execute step 103; otherwise, execute step 105.

[0146] Step 105: The compressor frequency is increased by nHz. After the compressor frequency is increased, the cooling capacity is increased and the temperature of the indoor unit pipes is reduced. At this time, the indoor unit reduces its speed and operates at a lower wind speed (for example, if the wind speed is set to a low wind speed or above, the wind speed is changed; if the wind speed is set to a low wind speed or below, the wind speed is maintained at the current wind speed), thereby slowing down the evaporation of condensed water on the surface of the heat exchanger.

[0147] Step 106, determining the difference between the current indoor ambient temperature T1 and the set temperature Ts. If T1-Ts<δT2, it indicates that the indoor temperature has reached the shutdown temperature point, and step 107 is executed at this time; otherwise, step 106 is executed;

[0148] Step 107: Shut down when the temperature reaches a certain point.

[0149] Option 2

[0150] Combine Figure 5 The difference from solution 1 is that the humidity detection method is changed to obtain the compressor low-frequency operation time t. The specific control method is as follows:

[0151] Step 201, obtaining the current indoor temperature T0 and the air conditioning set temperature Ts;

[0152] Step 202: compare the difference between the current indoor temperature T0 and the set temperature Ts. If δT2≤T0-Ts≤δT1, it indicates that the current indoor temperature is close to the set temperature. At this time, the compressor runs at the lowest frequency and executes step 203. Otherwise, execute step 207.

[0153] Step 203: Obtain the minimum frequency operation time t of the current compressor

[0154] Step 204: Compare the current low-frequency operation time t with the preset low-frequency operation time t0. If t≤t0, it indicates that the current low-frequency operation time is short, the condensed water evaporation on the heat exchanger is small, and no odor is emitted. Step S07 is executed. If t>t0, it indicates that the current low-frequency operation time of the prototype is too long, the condensed water evaporation on the heat exchanger surface is relatively large, and the low-frequency operation continues. Step 205 is executed.

[0155] Step 205: The compressor frequency is increased by nHz. After the compressor frequency is increased, the cooling capacity is increased and the temperature of the indoor unit pipes is reduced. At this time, the indoor unit reduces its speed and operates at a lower wind speed (for example, if the wind speed is set to a low wind speed or above, the wind speed is changed; if the wind speed is set to a low wind speed or below, the wind speed is maintained at the current wind speed) to slow down the evaporation of condensed water on the surface of the heat exchanger.

[0156] Step 206, determining the difference between the current indoor ambient temperature T1 and the set temperature Ts. If T1-Ts<δT2, it indicates that the indoor temperature has reached the shutdown temperature point. In this case, step 208 is executed. Otherwise, step 207 is executed.

[0157] Step 207: Continue cooling operation with current parameters

[0158] Step 208: Shut down when the temperature reaches a certain point.

[0159] After the temperature point is reached and the machine stops, the indoor temperature gradually rises, the internal pipe temperature also rises, and the condensed water on the heat exchanger continues to evaporate. When it is detected that the difference between the indoor temperature and the set temperature is large, the compressor will start cooling again. At this time, in order to prevent the odor from being emitted from the heat exchanger coating, the internal unit air guide plate will be adjusted synchronously after the compressor is started, and adjusted to the anti-cold wind position or closed position to prevent odor from blowing out. After the internal pipe temperature drops to temperature T3, it is assumed that the condensed water on the surface of the heat exchanger is condensed to an appropriate amount and no odor will be blown out. At this time, the air guide plate position is adjusted to the set position. Control method see Figure 6 .

[0160] After reaching the temperature point, shut down and restart, see another solution Figure 7 Upon restart, the compressor frequency increases, the internal fan simultaneously reverses, and the air deflector position remains at the set temperature. Once the pipe temperature drops to T3, the internal fan rotates forward. Alternatively, an adsorption device can be installed at the air inlet, filter, or within the internal unit to absorb and treat odors.

[0161] Option 3

[0162] Combine Figure 8 , the method comprising:

[0163] Step 301, power on;

[0164] Step 302: The air guide plate is in the anti-direct blowing position, the internal fan is reversed and started, and operates at the lowest wind speed. At the same time, the air quality in the internal machine cavity is tested;

[0165] Step 303, determine whether the current air quality is good. If not, continue with step 302. If good, proceed to step 304.

[0166] In step 304, the internal fan stops, resumes forward rotation, and runs at the set wind speed, and the air guide plate returns to the preset position.

[0167] Option 4

[0168] Combine Figure 9 The difference between Solution 4 and Solution 3 is that Solution 4 adds the control of the air inlet damper to the adjustment control program for models with air inlet dampers:

[0169] Step 401, power on;

[0170] Step 402: The air deflector is in the anti-direct blowback position, the internal fan is reversed and started, running at the lowest setting. Simultaneously, the air quality within the internal unit cavity is monitored, and the air inlet damper is opened and then lowered to its minimum setting. At this point, the inlet and outlet ventilation is relatively poor, and the air within the internal unit cavity is in a turbulent state. Odors will not be blown directly toward the user, but will be dissipated relatively slowly into the air, minimizing the impact on the user.

[0171] Step 403, determine whether the current air quality is good. If not, continue with step S22; if good, proceed to step 404;

[0172] Step 404, open the air inlet baffle to the maximum opening and continue to operate for t2 seconds; this step removes the residual odor in the internal machine cavity.

[0173] Step 405: the internal fan stops, resumes forward rotation, and runs at the set wind speed, and the air guide plate returns to the preset position.

[0174] Options 3 and 4 primarily address the first type of odor, which occurs when the air conditioner is not used for an extended period or in a humid environment. This odor typically only appears when the air conditioner is first turned on, disappears with the airflow, and rarely recurs. Options 3 and 4 also incorporate adsorption and sterilization devices within the air inlet baffle and the internal unit cavity to prevent the release of large amounts of odor into the air, further improving odor control.

[0175] For the above-mentioned anti-odor solutions, you can set the anti-odor control logic manually according to the use of the air conditioner, or you can set the automatic control logic.

[0176] This embodiment proposes an air conditioner odor prevention method, providing different strategies for addressing the causes of odor during air conditioning use. This odor prevention function is primarily achieved by adjusting the control program, such as the compressor operating frequency, internal air speed, and air deflector position, to prevent odors from blowing out and affecting the user experience. This method eliminates the need for complex equipment installation, resulting in low cost and high effectiveness.

[0177] The second aspect of the present invention discloses an air-conditioning control device, which includes one or more processors and a non-temporary computer-readable storage medium storing program instructions. When the one or more processors execute the program instructions, the one or more processors are used to implement any one of the anti-odor methods in the first aspect.

[0178] A third aspect of the present invention discloses an air conditioner, which adopts the anti-odor method provided by any one of the first aspects, or includes the air conditioner control device provided by the second aspect.

[0179] In different embodiments provided by the present invention, the same parameters, nouns, logic, etc. should be understood as having a unified meaning, and this application does not intentionally repeat the description in each embodiment.

[0180] The exemplary embodiments of the present disclosure are specifically shown and described above. It should be understood that the present disclosure is not limited to the detailed structures, configurations or implementations described herein; on the contrary, the present disclosure is intended to cover various modifications and equivalent configurations included within the spirit and scope of the appended claims.

Claims

1. A method for preventing odor in air conditioners, characterized in that: The air conditioner is provided with a first anti-odor treatment program and a second anti-odor treatment program, and the method includes: After the air conditioner is turned on for cooling, obtain indoor environmental parameters; determining, based on the indoor environmental parameters, whether the air conditioning operation satisfies the second odor generation condition; If the second odor generation condition is met, executing the second anti-odor treatment procedure; If the second odor generation condition is not met, determine the condensation water condition on the indoor heat exchanger surface; Determining whether the air conditioner operation meets the first odor generation condition based on the condensed water condition; If the first odor generation condition is met, executing the first anti-odor treatment procedure; The first anti-odor treatment program is used to deal with the pungent odor emitted by the internal materials of the air conditioner during the cooling process; the second anti-odor treatment program is used to deal with the odor that occurs when the air conditioner is not used for a long time or when the indoor environment is high in humidity and high temperature; Wherein, judging whether the air conditioner operation satisfies the first odor generation condition according to the condensed water condition includes: comparing the surface humidity of the indoor heat exchanger with a first set humidity; When the surface humidity of the indoor heat exchanger is less than or equal to the first set humidity, the air conditioner operation is deemed to meet the first odor generation condition; The step of determining whether the air-conditioning operation satisfies the second odor generation condition based on the indoor environment parameter value includes: comparing the indoor ambient temperature with a temperature threshold, and comparing the indoor ambient humidity with a humidity threshold; When the indoor ambient temperature is greater than the humidity threshold, and the indoor ambient humidity is greater than the humidity threshold, it is deemed that the air conditioning operation meets the second odor generation condition; The executing of the first anti-odor treatment program includes: controlling the compressor to increase the frequency of operation, and / or controlling the indoor fan to reduce the speed of operation, so as to slow down the evaporation of condensed water on the surface of the indoor heat exchanger; The execution of the second anti-odor treatment program includes: controlling the air guide plate of the air conditioner to move to the anti-direct blowing position, controlling the indoor fan to reverse, and running at a set speed.

2. The method according to claim 1, wherein Determining the condensed water condition on the surface of the indoor heat exchanger includes: Get the indoor ambient temperature T0 and the indoor set temperature, and calculate the difference between the two; When the difference is within a first set range, obtaining the surface humidity of the indoor heat exchanger; The condensed water condition is determined according to the surface humidity of the indoor heat exchanger.

3. The method according to claim 1, wherein After the compressor frequency is increased and / or the indoor fan speed is decreased, the method further includes: Obtaining the indoor ambient temperature T1, and determining whether the difference between the indoor ambient temperature T1 and the indoor set temperature is less than or equal to the lower limit of the first set range; If it is less than, the air conditioner will be shut down.

4. The method according to claim 3, wherein An air guide plate is provided at the air outlet of the air conditioner. When the air conditioner is restarted, the first anti-odor treatment procedure further includes: Controlling the air guide plate to move from a current position to a direct blowing prevention position or a closed position, and / or controlling the indoor fan to reverse; Obtaining the indoor heat exchanger tube temperature, and comparing the indoor heat exchanger tube temperature with the current dew point temperature; When the indoor heat exchanger tube temperature is less than or equal to the current dew point temperature, the air guide plate is controlled to return to the current position, and / or the indoor fan is controlled to resume forward rotation.

5. The method according to claim 4, wherein After the air conditioner is shut down, the method further includes: Acquiring the indoor ambient temperature T2, and determining whether the difference between the indoor ambient temperature T2 and the indoor set temperature is greater than or equal to the upper limit of the first set range; If it is greater than or equal to, control the air conditioner to restart.

6. The method according to claim 1, wherein The air conditioner is further provided with a second anti-odor program, and the method further comprises: After the air conditioner is turned on for cooling, obtain indoor environmental parameters; determining, based on the indoor environmental parameters, whether the air conditioning operation satisfies the second odor generation condition; If the second odor generation condition is met, the second anti-odor treatment procedure is executed.

7. The method according to claim 6, wherein The execution of the second anti-odor treatment program further includes: Obtaining an odor detection value in the indoor unit cavity, and comparing the odor detection value with a set odor value; When the odor detection value does not exceed the set odor value, the air guide plate is controlled to return to the set position, the indoor fan is controlled to resume forward rotation, and the second anti-odor processing program is exited.

8. The method according to claim 7, wherein An air inlet baffle is provided at the air inlet of the air conditioner, and the execution of the second anti-odor treatment procedure further includes: The air inlet baffle is controlled to move to a first set position.

9. The method according to claim 8, wherein Before controlling the air guide plate to return to the preset position and controlling the indoor fan to resume forward rotation, the method further includes: Controlling the air inlet baffle to move to a second set position and operate for a set time; The opening degree of the first setting position is smaller than the opening degree of the second setting position.

10. An air conditioning control device, characterized in that: The method comprises one or more processors and a non-transitory computer-readable storage medium storing program instructions. When the one or more processors execute the program instructions, the one or more processors are configured to implement the method according to any one of claims 1 to 9.

11. An air conditioner, characterized in that: The air conditioner adopts the method according to any one of claims 1 to 9, or includes the air conditioner control device according to claim 10.

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