A germicidal lamp control method and device, an air conditioner and a storage medium

Abstract

The embodiment of the application belongs to the technical field of air conditioners, and relates to a germicidal lamp control method. The germicidal lamp control method is applied to an air conditioner, and the method comprises the following steps: when there is an opened germicidal lamp, a first temperature of any position on an air inlet path of the air conditioner is acquired, a second temperature of the same position is acquired after a first preset time interval, a temperature difference is calculated according to the first temperature and the second temperature, whether a preset downshift condition is met is judged according to the temperature difference, and at least one germicidal lamp is turned off if the downshift condition is met. The application also relates to a germicidal lamp control device, an air conditioner and a computer readable storage medium. The technical scheme provided by the application can effectively eliminate bacteria in the room, achieve the sterilization effect, protect the germicidal lamp, avoid excessive consumption of the germicidal lamp, prolong the service life of the germicidal lamp, and make the air conditioner durable, energy-saving and environmentally friendly.

Description

Technical Field

[0001] This application relates to the field of air conditioner technology, and more specifically, to a germicidal lamp control method, device, air conditioner, and storage medium. Background Technology

[0002] As people's requirements for air quality continue to increase, many air conditioners have added sterilization functions to their indoor units. While not affecting the original functions of the air conditioner, it can also purify the air and eliminate most of the bacteria that are harmful to the human body, which is widely loved by people. Therefore, the sterilization function of air conditioners has become one of the important functions of air conditioners.

[0003] Current air conditioners use a germicidal lamp to irradiate the air inside the unit, thus sterilizing it. The air conditioner then exhausts the sterilized air. Currently, the germicidal lamps used are either mercury lamps or LED ultraviolet germicidal lamps. Because mercury lamps produce ozone and have a short lifespan and low efficiency, most germicidal lamps on the market are LED ultraviolet germicidal lamps.

[0004] When using existing air conditioners, all the germicidal lamps on the air conditioner will turn on after the user activates the sterilization mode. If the user forgets to turn off the sterilization mode or forgets to turn off the air conditioner, all the germicidal lamps will remain in working condition, which will seriously shorten the lifespan of the germicidal lamps and make them prone to damage. Summary of the Invention

[0005] The technical problem to be solved by the embodiments of this application is that the germicidal lamps on existing air conditioners have a short lifespan and are prone to damage.

[0006] To address the aforementioned technical problems, this application provides a germicidal lamp control method, which employs the following technical solution:

[0007] A method for controlling a germicidal lamp, applied to an air conditioner, the method comprising:

[0008] When a germicidal lamp is on, obtain the first temperature at any location on the air intake path of the air conditioner, and after a first preset time interval, obtain the second temperature at the same location.

[0009] Calculate the temperature difference based on the first temperature and the second temperature;

[0010] Determine whether the preset downgrade conditions are met based on the temperature difference;

[0011] If the downgrade conditions are met, at least one germicidal lamp shall be turned off.

[0012] Furthermore, the air conditioner is equipped with at least two germicidal lamps;

[0013] The step of turning off at least one germicidal lamp further includes:

[0014] Obtain the cumulative running time of each germicidal lamp;

[0015] Based on the cumulative running time of each germicidal lamp, turn off the N germicidal lamps with the longest cumulative running time, where N is an integer greater than or equal to 1.

[0016] Furthermore, after the step of turning off the N germicidal lamps with the longest cumulative running time, the process also includes:

[0017] The cumulative running time of each germicidal lamp is monitored in real time, and the difference in cumulative running time between any two germicidal lamps is calculated.

[0018] Determine whether the cumulative running time difference meets the preset rotation start condition;

[0019] If the cumulative operating time difference meets the rotation start-up condition, turn on the germicidal lamp with the relatively shorter cumulative operating time among the two germicidal lamps constituting the cumulative operating time difference, and turn off the germicidal lamp with the relatively longer cumulative operating time among the two germicidal lamps constituting the cumulative operating time difference.

[0020] Furthermore, the air conditioner is provided with a first germicidal lamp group and a second germicidal lamp group, the number of germicidal lamps on the first germicidal lamp group and the second germicidal lamp group is the same, and the first germicidal lamp group and the second germicidal lamp group are symmetrically arranged about the center line of the air conditioner cavity.

[0021] When N is an integer greater than or equal to 2, and the number of germicidal lamps in the first germicidal lamp group that are in the on state is greater than or equal to N / 2, and the number of germicidal lamps in the second germicidal lamp group that are in the on state is greater than or equal to N / 2, the step of turning off the N germicidal lamps with the longest cumulative running time based on the cumulative running time of each germicidal lamp specifically includes:

[0022] Based on the cumulative operating time of each germicidal lamp in the first germicidal lamp group, the [N / 2] germicidal lamps with the longest cumulative operating time in the first germicidal lamp group are turned off. Based on the cumulative operating time of each germicidal lamp in the second germicidal lamp group, the (N-[N / 2]) germicidal lamps with the longest cumulative operating time in the second germicidal lamp group are turned off, where [N / 2] represents rounding up or rounding down.

[0023] When N equals 1, the step of turning off the N germicidal lamps with the longest cumulative operating time based on the cumulative operating time of each germicidal lamp includes:

[0024] Based on the cumulative operating time of all germicidal lamps in the first and second germicidal lamp groups, the germicidal lamp with the longest cumulative operating time in the first and second germicidal lamp groups is turned off.

[0025] Furthermore, after determining whether the preset downgrading conditions are met based on the temperature difference, the method further includes:

[0026] If the conditions for downgrading are not met, turn on all the germicidal lamps on the air conditioner.

[0027] Furthermore, before the step of obtaining the first temperature at any location along the air intake path of the air conditioner, and then obtaining the second temperature at the same location after a first preset time interval, the method further includes:

[0028] A mapping table for the number of pre-stored germicidal lamps and the second preset duration;

[0029] The step of obtaining a first temperature at any location along the air intake path of the air conditioner, and then obtaining a second temperature at the same location after a first preset time interval, specifically includes:

[0030] The second preset duration is determined based on the mapping table and the number of germicidal lamps currently in the on state;

[0031] After the number of germicidal lamps currently in the on state continues to run for the second preset time, the first temperature at any location at the air return vent of the air conditioner is obtained, and after an interval of the first preset time, the second temperature at the same location is obtained.

[0032] Furthermore, after the step of turning off at least one germicidal lamp if the downgrade condition is met, the process returns to the step of determining the second preset duration based on the mapping table and the number of germicidal lamps currently on, until all germicidal lamps are turned off; or

[0033] After the step of turning on all the germicidal lamps on the air conditioner if the downgrade condition is not met, the process returns to the step of determining the second preset duration based on the mapping table and the number of germicidal lamps currently on, until all germicidal lamps are turned off.

[0034] To address the aforementioned technical problems, this application also provides a germicidal lamp control device, which employs the following technical solution:

[0035] A germicidal lamp control device, comprising:

[0036] The temperature measurement module is used to obtain the first temperature at any location on the air intake path of the air conditioner when a germicidal lamp is turned on, and to obtain the second temperature at the same location after a first preset time interval.

[0037] The calculation module is used to calculate the temperature difference based on the first temperature and the second temperature;

[0038] The judgment module is used to determine whether the preset downgrading conditions are met based on the temperature difference;

[0039] A control module is used to turn off at least one germicidal lamp when the downgrade condition is met.

[0040] To address the aforementioned technical problems, this application also provides an air conditioner that employs the following technical solution:

[0041] An air conditioner includes a memory and a controller, wherein the memory stores a computer program, and the controller executes the computer program to implement the steps of the germicidal lamp control method as described in any of the above embodiments.

[0042] To address the aforementioned technical problems, this application also provides a computer-readable storage medium, employing the technical solution described below:

[0043] A computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the germicidal lamp control method as described in any of the above embodiments.

[0044] Compared with the prior art, the embodiments of this application have the following main advantages:

[0045] The control method provided in this embodiment determines whether the temperature difference within a first preset time period meets the down-level condition to reflect whether there is air circulation between the indoor and outdoor environments. If the down-level condition is met, it indicates that there is no air circulation between the indoor and outdoor environments, and the indoor air is in a stable circulation state. When the indoor air is in a stable circulation state, turning off at least one germicidal lamp ensures that bacteria in the room are effectively eliminated. While achieving a sterilization effect, it also protects the germicidal lamp, preventing excessive consumption of the lamp due to the user forgetting to turn off the sterilization mode or the air conditioner. This extends the lifespan of the germicidal lamp, making the air conditioner durable, energy-saving, and environmentally friendly. Attached Figure Description

[0046] To more clearly illustrate the solution of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 This is a schematic flowchart of a germicidal lamp control method provided in one embodiment of this application;

[0048] Figure 2 yes Figure 1 The flowchart of the germicidal lamp control method is shown below;

[0049] Figure 3 yes Figure 1Flowchart of steps preceding step S200;

[0050] Figure 4 yes Figure 1 Flowchart of step S200;

[0051] Figure 5 yes Figure 1 Flowchart of steps following step S400;

[0052] Figure 6 yes Figure 1 Flowchart of step S500;

[0053] Figure 7 This is a schematic diagram of the internal structure of an air conditioner provided in one embodiment of this application.

[0054] Figure label:

[0055] 600. Air conditioner; 610. First germicidal lamp group; 620. Second germicidal lamp group; 611. Germicidal lamp. Detailed Implementation

[0056] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0057] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0058] like Figure 1 and Figure 2 As shown in the figure, this application provides a method for controlling a germicidal lamp, the steps of which include:

[0059] S200: When there is an active germicidal lamp, obtain the first temperature C1 at any position on the air intake path of the air conditioner, and after an interval of a first preset time T1, obtain the second temperature C2 at the same position.

[0060] S300. Calculate the temperature difference ΔC based on the first temperature C1 and the second temperature C2.

[0061] S400. Based on the temperature difference ΔC, determine whether the downshift condition is met.

[0062] S510. If the downgrade conditions are met, turn off at least one germicidal lamp.

[0063] Understandably, in this embodiment, the first temperature and the second temperature are obtained on the air intake path of the air conditioner. If the temperature difference ΔC between the first temperature and the second temperature is large, it indicates that there is circulation between indoor air and outdoor air. If the temperature difference ΔC between the first temperature and the second temperature is small, it indicates that the indoor air is in a stable circulation. The air that has been sterilized by the germicidal lamp in the air conditioner will then enter the air conditioner cavity for sterilization again through the air intake path of the air conditioner, which will result in repeated disinfection and shorten the lifespan of the germicidal lamp.

[0064] The control method provided in this embodiment determines whether the temperature difference within a first preset time period meets the downgrade condition to reflect whether there is air circulation between the indoor and outdoor environments. If the downgrade condition is met, it indicates that there is no air circulation between the indoor and outdoor environments and the indoor air is in a stable circulation state. At this time, turning off at least one germicidal lamp can ensure that the bacteria in the room are effectively eliminated, achieving a sterilization effect. It can also protect the germicidal lamp and prevent excessive consumption of the germicidal lamp when the user forgets to turn off the sterilization mode or the air conditioner.

[0065] like Figure 3 As shown, in this embodiment, before step S200, the following steps are also included:

[0066] S110, a mapping table of the number of pre-stored germicidal lamps and the second preset duration T2;

[0067] S120: Receives the command to start the sterilization mode and turns on all the sterilization lights on the air conditioner.

[0068] like Figure 4 As shown, step S200 specifically includes:

[0069] S210. Determine the second preset duration T2 based on the mapping table and the number of germicidal lamps currently in the on state;

[0070] S220. After the number of germicidal lamps currently in the on state continues to run for the second preset time T2, obtain the first temperature C1 at any position at the return air vent of the air conditioner, and after an interval of the first preset time T1, obtain the second temperature C2 at the same position.

[0071] In one embodiment, the first preset duration is 3-20 minutes, and the downgrading condition includes: the temperature difference ΔC does not exceed the temperature difference threshold;

[0072] Step S400 specifically includes:

[0073] If the temperature difference ΔC does not exceed the temperature difference threshold, then the downgrade condition is met.

[0074] If the temperature difference ΔC exceeds the temperature difference threshold, the downgrade condition is not met.

[0075] Understandably, when the temperature difference exceeds the temperature difference threshold—that is, when the temperature difference at the air conditioner's return air vent exceeds the threshold within the first preset time period—it indicates significant indoor temperature fluctuations. This could reflect that the indoor air has not been completely sterilized, or that there is significant airflow between indoor and outdoor air, with new air entering and polluting the indoor environment. Therefore, when the temperature difference exceeds the preset value, the condition for downgrading the sterilization level is not met. Conversely, when the temperature difference is less than or equal to the preset value, it indicates that the indoor environment is in a stable circulation state, with no outdoor air entering, and the indoor air cleanliness meets the sterilization effect requirements, thus meeting the condition for downgrading the sterilization level. In this case, some or all of the sterilization lamps can be turned off to achieve a downgrading of the sterilization level, protecting the sterilization lamps.

[0076] Specifically, in this embodiment, the first preset duration T1 is 10 minutes, and the temperature difference threshold is ±2℃;

[0077] If the temperature difference -2℃≤ΔC≤2℃, then the downgrade condition is met;

[0078] If the temperature difference ΔC > 2℃ or ΔC < -2℃, then the downgrade condition is not met.

[0079] It should be noted that the first preset duration of this application can be adjusted within the range of 3-20 minutes according to actual conditions. The temperature difference threshold can be adjusted within the range of ±(1-3℃) according to actual needs.

[0080] In this embodiment, the first preset duration T1 is set in the range of 3-20 minutes. The calculated temperature difference ΔC between the first temperature and the second temperature can more accurately reflect the indoor air circulation status. If the first preset duration is too short, the temperature difference between the first temperature and the second temperature will not be obvious, affecting the accuracy of the judgment. If the first preset duration is too long, it will cause the lifespan of the germicidal lamp to be consumed within the first preset duration.

[0081] Setting the temperature difference threshold to 2℃ allows for a more accurate and rapid reflection of indoor air circulation. If the temperature difference is greater than ΔC > 2℃ or ΔC < -2℃, it indicates that the air temperature flowing through the air intake path of the air conditioner fluctuates significantly in a short period of time, and the indoor air has not been completely replaced by the clean air blown out by the air conditioner. Therefore, it is determined that the current indoor air has not achieved the expected sterilization effect.

[0082] like Figure 5As shown, in one embodiment, after step S400, the method further includes:

[0083] S520. If the preset downshifting conditions are not met, turn on all the sterilization lamps on the air conditioner.

[0084] Specifically, when the temperature difference ΔC > 2℃ or ΔC < -2℃, it is determined that the current indoor environment does not meet the conditions for downgrading. This indicates potential external air pollution or that the original indoor air may not have been completely replaced with clean air. In such cases, further sterilization treatment of the indoor air is required. This embodiment activates all the sterilization lamps on the air conditioner when the preset downgrading conditions are not met. This ensures that the air conditioner maintains the highest sterilization efficiency even when the indoor environment does not meet the downgrading conditions, achieving rapid sterilization. This allows users to ensure effective sterilization while also achieving durability and environmental friendliness when activating the sterilization mode.

[0085] In this embodiment, after step S510, the process returns to step S210 until all germicidal lamps are turned off.

[0086] Alternatively, after step S520, return to step S210 until all germicidal lamps are turned off.

[0087] Understandably, suppose there are M germicidal lamps on the air conditioner, and N germicidal lamps are turned off, where N is a positive integer greater than or equal to 1, and M is greater than N. A pre-stored mapping table of the number of germicidal lamps and a second preset duration T2 is used. After receiving a command to activate the sterilization mode, the air conditioner turns on all M germicidal lamps, identifies that M lamps are currently on, and determines the second preset duration T2 corresponding to the M lamps based on the pre-stored mapping table and the number M of lamps currently on.

[0088] After running M germicidal lamps for a second preset time T2, the first temperature C1 at the air return vent of the air conditioner is obtained. After an interval of the first preset time T1, the second temperature C2 at the same location is obtained. Based on the difference ΔC between C1 and C2, it is determined whether the downgrade condition is met.

[0089] If the downgrading condition is met, turn off N germicidal lamps. Return to step S210, and according to the mapping table, determine the new second preset duration T2' corresponding to the MN germicidal lamps that are currently on. After keeping the MN germicidal lamps running for the new second preset duration T2', return to step S220 and subsequent steps S300, S400, S510, and S520, and repeat the above steps until all germicidal lamps are turned off.

[0090] If the downshifting condition is not met, turn on the M germicidal lamps on the air conditioner. Return to step S210, and determine the new second preset duration T2' corresponding to the M germicidal lamps currently on according to the mapping table. After the M germicidal lamps run for the second preset duration T2', return to step S220 and subsequent steps S300, S400, S510, and S520, repeating the above steps until all germicidal lamps are turned off.

[0091] In another embodiment, M can also be equal to N. When M is equal to N, after turning off N germicidal lamps in step S510, all germicidal lamps are in the off state.

[0092] In this embodiment, the mapping table between the number of germicidal lamps and the second preset duration T2 can be expected to be obtained through experiments: the second preset duration T2 is the time required to achieve the preset sterilization effect when different numbers of germicidal lamps are running. For example, when one germicidal lamp is activated, the time (T2) required to achieve a 95%-99% bacterial elimination effect is 3 hours; when two germicidal lamps are activated, the time (T2) required to achieve a 95%-99% bacterial elimination effect is 2.5 hours; when four germicidal lamps are activated, the time (T2) required to achieve a 95%-99% bacterial elimination effect is 1.5 hours, and so on, to ensure that the running time of the germicidal lamps is adapted to the number of germicidal lamps activated. When fewer germicidal lamps are activated, a longer second preset duration T2 can be set, and when more germicidal lamps are activated, a shorter second preset duration T2 can be set to ensure the sterilization effect. It should be noted that the expected bacterial elimination effect and the required time can be adjusted according to the actual situation.

[0093] This embodiment can determine the working time of the germicidal lamps based on the number of germicidal lamps currently in the on state, so as to adapt to the impact of different numbers of germs on the sterilization efficiency. This ensures that after N germicidal lamps are turned off, the remaining germicidal lamps can continue to work for a second preset time T2 to achieve the expected sterilization effect. It can meet the sterilization effect while turning off unnecessary germicidal lamps in time, avoiding waste of the life of the germicidal lamps.

[0094] In one embodiment, the air conditioner is equipped with at least two germicidal lamps.

[0095] In this embodiment, step S510, the step of turning off at least one germicidal lamp, specifically includes:

[0096] Obtain the cumulative running time of each germicidal lamp;

[0097] Based on the cumulative running time of each germicidal lamp, the N germicidal lamps with the longest cumulative running time are turned off. The number of germicidal lamps turned off is N, where N is a positive integer greater than or equal to 1.

[0098] Understandably, in this embodiment, the air conditioner has at least one germicidal lamp assembly.

[0099] In some embodiments, when an air conditioner is equipped with a germicidal lamp group, all germicidal lamps are on the same germicidal lamp group.

[0100] In other embodiments, when the air conditioner is equipped with two or more germicidal lamp groups, the number of germicidal lamps on each germicidal lamp group may be the same or different.

[0101] In this embodiment, before turning off N germicidal lamps, the system prioritizes turning off the lamps with longer cumulative operating times based on their total running time. This allows the air conditioner to select the lamp with the longest operating time from among two or more lamps to turn off once the conditions for downgrading are met. This ensures that the cumulative operating time of the multiple germicidal lamps on the air conditioner is roughly the same, preventing individual lamps from being damaged due to excessive running time.

[0102] like Figure 6 As shown, in this embodiment, after step S510, the following steps are also included:

[0103] S530: Monitor the cumulative running time of each germicidal lamp in real time and calculate the difference in cumulative running time between any two germicidal lamps.

[0104] S540. Determine whether the cumulative running time difference meets the preset rotation start condition;

[0105] S550. If the cumulative operating time difference meets the rotation start-up condition, turn on the germicidal lamp with the relatively shorter cumulative operating time among the two germicidal lamps constituting the cumulative operating time difference, and turn off the germicidal lamp with the relatively longer cumulative operating time among the two germicidal lamps constituting the cumulative operating time difference.

[0106] Specifically, each germicidal lamp is equipped with a timer to record its cumulative operating time. The cumulative operating time is the total duration of use of the germicidal lamp.

[0107] The conditions for starting the rotation include: the cumulative running time difference does not exceed the time difference threshold.

[0108] In some embodiments, the time difference threshold can be set in the range of 40-60 hours.

[0109] In this embodiment, the time difference threshold is 50 hours.

[0110] Specifically, step S540 also includes:

[0111] If the cumulative running time difference is greater than 50 hours, then the cumulative running time difference meets the preset rotation start conditions;

[0112] If the cumulative running time difference is ≤50 hours, then the cumulative running time difference does not meet the preset rotation start conditions.

[0113] Understandably, by determining whether the cumulative operating time difference meets the preset rotation start-up conditions, the problem of excessively large differences in the lifespan of germicidal lamps caused by one germicidal lamp running for a long time while another is turned off for a long time can be avoided in two or more germicidal lamps. Using the method provided in this embodiment, the rotation of different germicidal lamps can be achieved among two or more germicidal lamps, ensuring that the cumulative operating time of each lamp is the same or approximately equivalent.

[0114] In one embodiment, the air conditioner is provided with a first germicidal lamp group and a second germicidal lamp group, the number of germicidal lamps in the first germicidal lamp group and the second germicidal lamp group are the same, and the first germicidal lamp group and the second germicidal lamp group are symmetrically arranged about the center line of the air conditioner cavity.

[0115] In this embodiment, when N is an integer greater than or equal to 2, and the number of germicidal lamps in the first germicidal lamp group that are in the on state is greater than or equal to N / 2, and the number of germicidal lamps in the second germicidal lamp group that are in the on state is greater than or equal to N / 2, the step of turning off the N germicidal lamps with the longest cumulative running time based on the cumulative running time of each germicidal lamp specifically includes:

[0116] Based on the cumulative running time of each germicidal lamp in the first germicidal lamp group, the [N / 2] germicidal lamps with the longest cumulative running time in the first germicidal lamp group are turned off. Based on the cumulative running time of each germicidal lamp in the second germicidal lamp group, the (N-[N / 2]) germicidal lamps with the longest cumulative running time in the second germicidal lamp group are turned off, where [N / 2] represents rounding down. In this embodiment, [N / 2] specifically represents rounding up. In other embodiments, [N / 2] also represents rounding up.

[0117] When N equals 1, the step of turning off the N germicidal lamps with the longest cumulative running time based on the cumulative running time of each germicidal lamp includes:

[0118] Based on the cumulative running time of all germicidal lamps in the first and second germicidal lamp groups, the germicidal lamp group with the longest cumulative running time among all germicidal lamps in the first and second germicidal lamp groups is turned off.

[0119] In some implementations, when N is an even number greater than or equal to 2, and the cumulative operating time of each germicidal lamp in the first germicidal lamp group is the same, and the cumulative operating time of each germicidal lamp in the second germicidal lamp group is the same, then any N / 2 germicidal lamps in the first germicidal lamp group are turned off, and N / 2 germicidal lamps in the second germicidal lamp group are turned off according to the position of the turned-off germicidal lamps in the first germicidal lamp group; wherein, the turned-off germicidal lamps in the first germicidal lamp group and the turned-off germicidal lamps in the second germicidal lamp group are symmetrically distributed about the center line of the air conditioner cavity.

[0120] When N is an odd number greater than or equal to 2, and the cumulative running time of each germicidal lamp in the first germicidal lamp group is the same, and the cumulative running time of each germicidal lamp in the second germicidal lamp group is the same, then any [N / 2] germicidal lamps in the first germicidal lamp group are turned off. Based on the positions of the turned-off germicidal lamps in the first germicidal lamp group, (N-[N / 2]) germicidal lamps in the second germicidal lamp group are turned off. It should be noted that when N is an odd number not equal to 1, the number of germicidal lamps to be turned off in the first germicidal lamp group can be determined by rounding up or down. Then, based on the number of turned-off germicidal lamps in the first germicidal lamp group, the number of germicidal lamps to be turned off in the second germicidal lamp group is determined. This ensures that the difference between the number of turned-off germicidal lamps in the first and second germicidal lamp groups does not exceed one.

[0121] Understandably, this embodiment is provided with a first germicidal lamp group and a second germicidal lamp group, and the two germicidal lamp groups are symmetrically arranged in the inner cavity of the air conditioner, which can uniformly and fully perform ultraviolet sterilization on the air entering the inner cavity of the air conditioner, ensuring uniform sterilization area.

[0122] It should be noted that when the air conditioner is first activated in sterilization mode, all sterilization lamps in the first and second sterilization lamp groups are turned on. At this time, the cumulative running time of all sterilization lamps starts from zero. After judging whether the preset downgrade conditions are met, before turning off N sterilization lamps, the cumulative running time of each sterilization lamp in the two sterilization lamp groups is equal. At this time, there is no issue of the cumulative running time of all sterilization lamps. By turning off any [N / 2] sterilization lamps in the first sterilization lamp group, and simultaneously turning off (N-[N / 2]) sterilization lamps in the second sterilization lamp group that are symmetrical about the center line of the air conditioner cavity, it is ensured that the sterilization lamps that are simultaneously on in the first and second sterilization lamp groups are symmetrically distributed about the center line of the air conditioner cavity. Even if some sterilization lamps are turned off, it is still possible to ensure uniform sterilization of the air in the air conditioner cavity, and the sterilization area of ​​the sterilization lamps is evenly distributed.

[0123] When the air conditioner restarts the sterilization mode, if the sterilization lamps in the first and second sterilization lamp groups were partially turned off during the initial start of the sterilization mode, the cumulative running time of each sterilization lamp in the first sterilization lamp group will be different, and the cumulative running time of each sterilization lamp in the second sterilization lamp group will also be different. If it is necessary to turn off the sterilization lamps, the [N / 2] sterilization lamps with the longest cumulative running time in the first sterilization lamp group will be turned off, and the (N-[N / 2]) sterilization lamps with the longest cumulative running time in the second sterilization lamp group will be turned off.

[0124] In some implementations, the number N of germicidal lamps that are turned off can be set as a fixed value or calculated according to the actual downgrading requirements.

[0125] In one embodiment, the number N of germicidal lamps to be turned off can be set to a fixed value: when N=1, one germicidal lamp is turned off each time the downgrade condition is met. When N=2, two germicidal lamps are turned off each time the downgrade condition is met.

[0126] In this embodiment, the number N of germicidal lamps that are turned off can be calculated as follows: The value of N is determined based on the number of germicidal lamps currently on. Specifically, if the number of germicidal lamps currently on is an even number greater than or equal to 2, N equals half the number of germicidal lamps currently on; if the number of germicidal lamps currently on is less than 2, N equals the number of germicidal lamps currently on.

[0127] In other embodiments, the number N of germicidal lamps to be turned off can be determined in advance based on the number of times the germicidal lamps are turned off. For example, it can be preset that N=2 when the germicidal lamps are turned off for the first time, N=1 when the germicidal lamps are turned off for the second time, and N=1 when the germicidal lamps are turned off for the third time.

[0128] For ease of understanding, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with specific implementation methods.

[0129] Example 1:

[0130] When the air conditioner is equipped with 4 germicidal lamps, all 4 germicidal lamps will turn on after the sterilization mode is activated.

[0131] After the four germicidal lamps have been running for time T2, the first temperature C1 is obtained at the return air vent. After a 10-minute interval, the second temperature C2 is obtained. The temperature difference ΔC between C1 and C2 is calculated.

[0132] Determine whether ΔC≤2℃ is satisfied;

[0133] If ΔC ≤ 2℃ and N = 2, then turn off 2 germicidal lamps and continue running for time T2'. After that, obtain the first temperature C1' at the return air vent. After a 10-minute interval, obtain the second temperature C2'. Calculate the temperature difference ΔC' between C1' and C2'. If ΔC' ≤ 2℃ and N' = 1, then turn off 1 germicidal lamp and continue running for time T2”. After that, obtain the first temperature C1” at the return air vent. After a 10-minute interval, obtain the second temperature C2”. Calculate the temperature difference ΔC” between C1” and C2”. If ΔC” ≤ 2℃ and N” = 1, then turn off 1 germicidal lamp, thus turning off all germicidal lamps.

[0134] If ΔC > 2℃, then turn on the four germicidal lamps on the air conditioner again and repeat the above control steps.

[0135] Wherein, T2, T2', and T2" all represent the second preset time. T2, T2', and T2" are determined based on the pre-stored mapping table and the number of germicidal lamps currently in the on state. The specific durations of T2, T2', and T2" can be the same or different.

[0136] Example 2:

[0137] When the air conditioner is equipped with a first germicidal lamp group and a second germicidal lamp group, and each germicidal lamp group is equipped with 2 germicidal lamps, after the sterilization mode is started, all 4 germicidal lamps are turned on. After the 4 germicidal lamps run for T2 time, the first temperature C1 is obtained at the return air vent. After an interval of 10 minutes, the second temperature C2 is obtained. The temperature difference ΔC between C1 and C2 is calculated.

[0138] Determine whether ΔC≤2℃ is satisfied;

[0139] If ΔC ≤ 2℃ and N = 2, then turn off one germicidal lamp in the first germicidal lamp group and one germicidal lamp in the second germicidal lamp group. After running for time T2', obtain the first temperature C1' at the return air vent. After an interval of 10 minutes, obtain the second temperature C2'. Calculate the temperature difference ΔC' between C1' and C2'. If ΔC' ≤ 2℃ and N' = 1, then turn off the germicidal lamp with the longest cumulative time in the first and second germicidal lamp groups. Continue running for time T2”, obtain the first temperature C1” at the return air vent. After an interval of 10 minutes, obtain the second temperature C2”. Calculate the temperature difference ΔC” between C1” and C2”. If ΔC” ≤ 2℃ and N” = 1, then turn off one germicidal lamp, thus turning off all germicidal lamps.

[0140] During the above control process, once the absolute value of the temperature difference exceeds 2°C, the four germicidal lamps on the air conditioner will be turned on again, and the above control steps will be repeated.

[0141] Wherein, T2, T2', and T2" all represent the second preset time. T2, T2', and T2" are determined based on the pre-stored mapping table and the number of germicidal lamps currently in the on state. The specific durations of T2, T2', and T2" can be the same or different.

[0142] Based on the above-described germicidal lamp control method, this application embodiment also provides a germicidal lamp control device, the device comprising:

[0143] The temperature measurement module is used to obtain the first temperature at any location on the air intake path of the air conditioner when a germicidal lamp is turned on, and to obtain the second temperature at the same location after a first preset time interval.

[0144] The calculation module is used to calculate the temperature difference based on the first temperature and the second temperature;

[0145] The judgment module is used to determine whether the preset downgrading conditions are met based on the temperature difference;

[0146] A control module is used to turn off at least one germicidal lamp when the downgrade condition is met.

[0147] like Figure 7 As shown, based on the above-described germicidal lamp control method, this application embodiment also provides an air conditioner 600, which includes a memory and a controller (not shown in the figure). The memory stores a computer program, and when the controller executes the computer program, it implements the steps of the germicidal lamp control method as described in any of the above embodiments.

[0148] The air conditioner provided in this embodiment determines whether the temperature difference within a first preset time period meets the down-level condition to reflect whether there is air circulation between the indoor and outdoor environments. If the down-level condition is met, it indicates that there is no air circulation between the indoor and outdoor environments, and the indoor air is in a stable circulation state. At this time, turning off at least one germicidal lamp can ensure that the bacteria in the room are effectively eliminated, achieving a sterilization effect. It can also protect the germicidal lamp, avoiding excessive consumption of the germicidal lamp due to the user forgetting to turn off the sterilization mode or the air conditioner, thus extending the service life of the germicidal lamp and making the air conditioner durable, energy-saving and environmentally friendly.

[0149] Specifically, in some embodiments, the air conditioner 600 is provided with at least two germicidal lamps 611, which are disposed in the inner cavity of the air conditioner 600 and are symmetrically arranged about the center line of the inner cavity of the air conditioner 600.

[0150] In this embodiment, the air conditioner 600 is provided with a first germicidal lamp group 610 and a second germicidal lamp group 620. The number of germicidal lamps on the first germicidal lamp group 610 and the second germicidal lamp group 620 is the same, and the first germicidal lamp group 610 and the second germicidal lamp group 620 are symmetrically arranged about the center line of the inner cavity of the air conditioner 600.

[0151] In this embodiment, a timer (not shown in the figure) is provided on the germicidal lamp 611, and the timer is electrically connected to the controller.

[0152] The memory includes at least one type of readable storage medium, including flash memory, hard disk, multimedia card, card-type memory (e.g., SD or DX memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, disk, optical disk, etc. In some embodiments, the memory may be an internal storage unit of a computer device, such as the hard disk or memory of the computer device. In other embodiments, the memory may also be an external storage device of the computer device, such as a plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, etc. Of course, the memory may include both internal storage units and external storage devices of the computer device. In this embodiment, the memory is typically used to store the operating system and various application software installed on the computer device, such as program code for method X. Furthermore, the memory can also be used to temporarily store various types of data that have been output or will be output.

[0153] Based on the above-described germicidal lamp control method, this application embodiment also provides a computer-readable storage medium storing a computer program, wherein the computer program, when executed by a processor, performs the steps of the germicidal lamp control method described in any of the above embodiments.

[0154] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A germicidal lamp control method applied to an air conditioner, characterized by, The method comprises: When the germicidal lamp is turned on, a first temperature of any position on the air inlet path of the air conditioner is obtained, and after a first preset time interval, a second temperature of the same position is obtained; A temperature difference is calculated according to the first temperature and the second temperature; It is judged whether the preset downshift condition is met according to the temperature difference; If the downshift condition is met, at least one germicidal lamp is turned off; The preset downshift condition is that the temperature difference does not exceed a temperature difference threshold value; If the temperature difference exceeds the temperature difference threshold value, it is judged that the indoor air and the outdoor air exist in circulation, and the downshift condition is not met; If the temperature difference is less than or equal to the temperature difference threshold value, it is judged that the indoor air is in a stable circulation state, and the downshift condition is met; If the downshift condition is not met, all germicidal lamps on the air conditioner are turned on; Before the step of obtaining the first temperature of any position on the air inlet path of the air conditioner and obtaining the second temperature of the same position after a first preset time interval, the method further comprises: A mapping table of the number of germicidal lamps and a second preset time interval is pre-stored; The step of obtaining the first temperature of any position on the air inlet path of the air conditioner and obtaining the second temperature of the same position after a first preset time interval specifically comprises: The second preset time interval is determined according to the mapping table and the number of germicidal lamps currently in the on state; After the number of germicidal lamps currently in the on state is kept running for the second preset time interval, the first temperature of any position at the air return port of the air conditioner is obtained, and the second temperature of the same position is obtained after a first preset time interval. The air conditioner is provided with at least two germicidal lamps; The step of turning off at least one germicidal lamp further comprises:

2. The germicidal lamp control method of claim 1, wherein, The cumulative running time of each germicidal lamp is obtained; According to the cumulative running time of each germicidal lamp, N germicidal lamps with the longest cumulative running time are turned off, and N is an integer greater than or equal to 1. After the step of turning off the N germicidal lamps with the longest cumulative running time, the method further comprises: The cumulative running time of each germicidal lamp is monitored in real time, and the cumulative running time difference between each two germicidal lamps is calculated; 3. The germicidal lamp control method of claim 2, wherein, It is judged whether the cumulative running time difference meets a preset rotation-on condition; If the cumulative running time difference meets the rotation-on condition, the germicidal lamp with a relatively shorter cumulative running time of the two germicidal lamps constituting the cumulative running time difference is turned on, and the germicidal lamp with a relatively longer cumulative running time of the two germicidal lamps constituting the cumulative running time difference is turned off. The air conditioner is provided with a first germicidal lamp group and a second germicidal lamp group, the number of germicidal lamps on the first germicidal lamp group and the second germicidal lamp group is the same, and the first germicidal lamp group and the second germicidal lamp group are symmetrically arranged about the center line of the inner cavity of the air conditioner; ​ 4. The germicidal lamp control method of claim 2, wherein, ​ When N is an integer greater than or equal to 2, and the number of germicidal lamps in the first germicidal lamp group in an on state is greater than or equal to N / 2, and the number of germicidal lamps in the second germicidal lamp group in an on state is greater than or equal to N / 2, the step of turning off N germicidal lamps with the longest cumulative running time according to the cumulative running time of each germicidal lamp specifically includes: According to the cumulative running time of each germicidal lamp in the first germicidal lamp group, [N / 2] germicidal lamps with the longest cumulative running time in the first germicidal lamp group are turned off, and according to the cumulative running time of each germicidal lamp in the second germicidal lamp group, (N-[N / 2]) germicidal lamps with the longest cumulative running time in the second germicidal lamp group are turned off, wherein [N / 2] represents rounding up or rounding down; When N is equal to 1, the step of turning off N germicidal lamps with the longest cumulative running time according to the cumulative running time of each germicidal lamp includes: According to the cumulative running time of all germicidal lamps in the first germicidal lamp group and the second germicidal lamp group, the germicidal lamp with the longest cumulative running time among all germicidal lamps in the first germicidal lamp group and the second germicidal lamp group is turned off.

5. The germicidal lamp control method according to claim 1, characterized in that, After the step of turning off at least one germicidal lamp if the downshift condition is met, the step of determining the second preset time length according to the mapping table and the number of germicidal lamps currently in an on state is returned until all germicidal lamps are turned off; or After the step of turning on all germicidal lamps on the air conditioner if the downshift condition is not met, the step of determining the second preset time length according to the mapping table and the number of germicidal lamps currently in an on state is returned until all germicidal lamps are turned off.

6. A germicidal lamp control device, characterized by: The device includes: A temperature measurement module for acquiring a first temperature at any position on the air conditioner inlet path when there is an on germicidal lamp, and acquiring a second temperature at the same position after a first preset time length; A calculation module for calculating a temperature difference according to the first temperature and the second temperature; A judgment module for judging whether a preset downshift condition is met according to the temperature difference; A control module for turning off at least one germicidal lamp when the downshift condition is met; The judgment module is specifically configured to: if the temperature difference exceeds a temperature difference threshold, judge that the indoor air and the outdoor air exist circulation, and that a downshift condition is not met; and if the temperature difference is less than or equal to the temperature difference threshold, judge that the indoor air is in a circulation state, and that the downshift condition is met; wherein the preset downshift condition is that the temperature difference does not exceed the temperature difference threshold; and after the step of judging whether the preset downshift condition is met according to the temperature difference, the method further includes: if the downshift condition is not met, turning on all the germicidal lamps on the air conditioner; before the steps of obtaining the first temperature at any position on an air inlet path of the air conditioner, and obtaining the second temperature at the same position after a first preset time interval, the method further includes: pre-storing a mapping table of the number of germicidal lamps and a second preset time interval; and the steps of obtaining the first temperature at any position on the air inlet path of the air conditioner, and obtaining the second temperature at the same position after the first preset time interval, specifically include: determining the second preset time interval according to the mapping table and the number of germicidal lamps currently in an on state; and obtaining the first temperature at any position at an air return port of the air conditioner after the number of germicidal lamps currently in the on state is kept running for the second preset time interval, and obtaining the second temperature at the same position after the first preset time interval.

7. An air conditioner comprising a memory and a controller, characterized by The memory stores a computer program, and the controller implements the steps of the germicidal lamp control method according to any one of claims 1 to 5 when executing the computer program.

8. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a computer program, and the processor implements the steps of the germicidal lamp control method according to any one of claims 1 to 5 when executing the computer program.

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