Air purifier control method and device, computer device, and air purifier

Abstract

The application relates to the technical field of electrical equipment, and discloses a control method and device of an air purifier, computer equipment and the air purifier. The air purifier comprises a first filter screen and a second filter screen arranged in sequence on an air flow channel, the first filter screen is provided with adsorbing material, the second filter screen is provided with a normal-temperature catalyst, and the control method of the air purifier comprises the following steps: when a removal instruction of polluted gas is received, a fan of the air purifier is started; when the actual adsorption amount of the polluted gas in the first filter screen reaches a first threshold value, the fan is stopped; after the desorption of the polluted gas adsorbed on the first filter screen is completed, the fan is started again, so that the desorbed polluted gas is subjected to catalytic decomposition on the second filter screen. Therefore, the catalytic reaction can be carried out when the concentration of the gaseous pollutants is relatively high, and the catalytic effect of the catalyst is ensured.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment technology, specifically to a control method, device, computer equipment, and air purifier for an air purifier. Background Technology

[0002] Volatile organic compounds (VOCs) are common gaseous pollutants found indoors, including formaldehyde and toluene. These pollutants are well-known for their high toxicity and long release periods. Currently, various air purification technologies have been developed to target VOCs. Among them, room-temperature catalytic technology can completely convert pollutants into non-toxic and harmless CO2 and H2O, and has therefore received widespread attention from all sectors of society.

[0003] The core of ambient temperature catalytic technology is the catalyst. Generally speaking, the catalyst can remove pollutants more effectively when the concentration of pollutants is high, while its catalytic effect will be inhibited when the concentration of pollutants is low, thus affecting its removal effect.

[0004] Air purifiers are common electrical appliances, typically used in home environments. Due to the unique characteristics of the home environment, the generation of gaseous pollutants such as formaldehyde is a long-term, slow release process, resulting in relatively low concentrations of these pollutants. As mentioned above, for room-temperature catalytic technology, the low concentration of reactants limits the reaction process to some extent, significantly reducing the catalytic effect of the catalyst and impacting the purification efficiency of the air purifier.

[0005] Furthermore, during the development of air purifiers, the verification of their purification effect is usually carried out under conditions of high pollutant concentration. Therefore, purifiers that have passed laboratory testing have a good removal effect in environments with high pollutant concentration, but their purification effect cannot be guaranteed in environments with low pollutant concentration. Summary of the Invention

[0006] In view of this, the present invention provides a control method, device, computer equipment and air purifier for an air purifier, so as to ensure the purification effect of the air purifier using room temperature catalytic technology.

[0007] In a first aspect, embodiments of the present invention provide an air purifier, the air purifier including a first filter and a second filter arranged sequentially on an air flow channel, wherein the first filter contains an adsorbent material and the second filter contains a room temperature catalyst, the air flow channel also includes a first sealing partition located in front of the first filter and a second sealing partition located behind the first filter, and a pressure reducing device for reducing pressure in the space enclosed by the first sealing partition and the second sealing partition.

[0008] This allows for the enrichment of gaseous pollutants in the first filter. The enriched pollutants can then be desorbed by reducing pressure, and the desorbed pollutants can undergo catalytic decomposition in the second filter. This enables catalytic reactions to occur at relatively high concentrations of gaseous pollutants, ensuring the catalytic effect of the catalyst and further guaranteeing the purification effect of air purifiers utilizing room-temperature catalytic technology.

[0009] Secondly, embodiments of the present invention also provide an air purifier, the air purifier including a first filter and a second filter arranged sequentially on an air flow channel, wherein the first filter contains an adsorbent material, the second filter contains a room temperature catalyst, and the first filter is provided with a heating unit.

[0010] This allows for the enrichment of gaseous pollutants in the first filter. The enriched pollutants can then be desorbed by heating, and the desorbed pollutants can undergo catalytic decomposition in the second filter. This enables catalytic reactions to occur at relatively high concentrations of gaseous pollutants, ensuring the catalytic effect of the catalyst and further guaranteeing the purification effect of air purifiers utilizing room-temperature catalytic technology.

[0011] Thirdly, embodiments of the present invention provide a control method for an air purifier. The air purifier includes a first filter and a second filter arranged sequentially in an airflow channel. The first filter contains adsorbent material, and the second filter contains a room-temperature catalyst. The control method for the air purifier includes: when a pollutant removal command is received, turning on the fan of the air purifier so that the actual adsorption amount of pollutant gas in the first filter reaches a preset first threshold; when the actual adsorption amount of pollutant gas in the first filter reaches the first threshold, turning off the fan and desorbing the pollutant gas adsorbed on the first filter; after the desorption of the pollutant gas adsorbed on the first filter is completed, turning on the fan again so that the desorbed pollutant gas undergoes catalytic decomposition on the second filter.

[0012] The air purifier control method provided in this embodiment, upon receiving a polluted gas removal command, activates the air purifier's fan to ensure the actual adsorption amount of polluted gas in the first filter reaches a preset first threshold. Once this threshold is reached, the fan is turned off to desorb the polluted gas adsorbed on the first filter. After desorption is complete, the fan is restarted to allow the desorbed polluted gas to undergo catalytic decomposition on the second filter. In other words, during air purification, gaseous pollutants are first enriched by adsorption materials. After a certain amount of gaseous pollutants accumulates, they are rapidly removed under the action of a catalytic reaction. This allows the catalytic reaction to occur at relatively high concentrations of gaseous pollutants, ensuring the catalytic effect of the catalyst and further guaranteeing the purification effect of the air purifier utilizing room-temperature catalytic technology.

[0013] In one optional implementation, turning on the air purifier's fan to make the actual adsorption amount of pollutant gas in the first filter reach a preset first threshold includes: turning on the air purifier's fan and obtaining the fan's first rotational speed; obtaining the concentration of pollutant gas; determining the theoretical adsorption time when the actual adsorption amount of pollutant gas in the first filter reaches the first threshold based on the first rotational speed and concentration; and determining that the actual adsorption amount of pollutant gas in the first filter has reached the preset first threshold when the actual running time of the fan reaches the theoretical adsorption time.

[0014] This allows for accurate determination of whether the actual amount of pollutant gas adsorbed in the first filter reaches the preset first threshold.

[0015] In one optional embodiment, after determining the theoretical adsorption time when the actual adsorption amount of pollutant gas in the first filter reaches the first threshold based on the first rotation speed and the concentration, the method further includes: determining whether the theoretical adsorption time is greater than a preset second threshold; when the theoretical adsorption time is greater than the second threshold, the second threshold is used as the theoretical adsorption time.

[0016] This ensures that the theoretical adsorption time will not be too long.

[0017] In one optional implementation, obtaining the first rotational speed of the fan includes: determining whether the removal instruction for polluted gas contains fan speed information; if the removal instruction for polluted gas contains fan speed information, determining the first rotational speed based on the speed information; otherwise, using the maximum rotational speed of the fan as the first rotational speed of the fan.

[0018] This allows for the rapid enrichment of gaseous pollutants.

[0019] In one alternative embodiment, restarting the fan to allow the desorbed pollutant gas to undergo catalytic decomposition on the second filter screen includes: restarting the fan and controlling the fan to operate at a second rotational speed to allow the desorbed pollutant gas to undergo catalytic decomposition on the second filter screen, wherein the second rotational speed is determined based on the type of catalyst at room temperature.

[0020] This ensures that the desorbed pollutants are decomposed to the maximum extent on the second filter.

[0021] In one optional embodiment, the first filter is provided with a heating unit. After the air purifier fan is turned on and before the actual adsorption amount of pollutant gas in the first filter reaches a first threshold, the method further includes: controlling the heating unit to heat the filter and making the actual temperature of the first filter lower than a preset temperature threshold.

[0022] When using the adsorption material in the first filter to enrich gaseous pollutants, appropriately increasing the temperature of the first filter can enhance the adsorption reaction effect. Therefore, the heating unit in the first filter can be controlled to heat the filter, while ensuring that the actual temperature of the first filter is lower than the aforementioned temperature threshold.

[0023] In one optional embodiment, desorbing the pollutant gas adsorbed on the first filter screen includes: controlling the heating unit to heat the filter screen and raising the actual temperature of the first filter screen above a temperature threshold, so as to heat-desorb the pollutant gas adsorbed on the first filter screen.

[0024] When the temperature of the first filter is greater than or equal to a preset temperature threshold, the gaseous pollutants adsorbed in the first filter will desorb. Therefore, the first filter can be heated to a temperature higher than the temperature threshold (i.e., the desorption temperature) to desorb the gaseous pollutants adsorbed on the first filter.

[0025] In one optional embodiment, the airflow channel further includes a first sealing partition located in front of the first filter and a second sealing partition located behind the first filter, and a pressure reducing device for reducing the pressure in the space enclosed by the first and second sealing partitions. Desorbing the pollutant gas adsorbed on the first filter includes: controlling the first and second sealing partitions to close and activating the pressure reducing device to desorb the pollutant gas adsorbed on the first filter.

[0026] This allows for depressurization and desorption of pollutants adsorbed on the first filter screen.

[0027] In one optional implementation, after the air purifier fan is turned on and before the actual adsorption amount of pollutant gas in the first filter reaches a first threshold, the method further includes: determining whether a mode adjustment command or a shutdown command has been received; when a mode adjustment command or a shutdown command is received, turning off the fan and desorbing the pollutant gas adsorbed on the first filter; after the desorption of the pollutant gas adsorbed on the first filter is completed, turning the fan back on so that the desorbed pollutant gas can be catalytically decomposed on the second filter.

[0028] Therefore, during the enrichment process, when a user issues a mode adjustment command or a shutdown command, the mode adjustment command or shutdown command is issued only after the catalytic decomposition is completed. This ensures that the first filter does not contain adsorbed gaseous pollutants, and that the gaseous pollutants adsorbed in the first filter do not cause secondary air pollution.

[0029] Fourthly, embodiments of the present invention also provide a control device for an air purifier. The air purifier includes a first filter and a second filter arranged sequentially in an airflow channel. The first filter contains adsorbent material, and the second filter contains a room-temperature catalyst. The control device for the air purifier includes an enrichment module, a desorption module, and a decomposition module. When a pollutant removal command is received, the enrichment module is used to turn on the fan of the air purifier so that the actual adsorption amount of pollutant gas in the first filter reaches a preset first threshold. When the actual adsorption amount of pollutant gas in the first filter reaches the first threshold, the desorption module is used to turn off the fan and desorb the pollutant gas adsorbed on the first filter. After the desorption of the pollutant gas adsorbed on the first filter is completed, the decomposition module is used to turn on the fan again so that the desorbed pollutant gas undergoes catalytic decomposition on the second filter.

[0030] Fifthly, embodiments of the present invention also provide a computer device, including a memory and a processor, which are communicatively connected to each other. The memory stores computer instructions, and the processor executes the computer instructions to perform the control method of the air purifier described in the first aspect or any corresponding embodiment.

[0031] In a sixth aspect, embodiments of the present invention also provide an air purifier, comprising a first filter, a second filter, and a computer device arranged sequentially in an air flow channel, wherein the first filter contains an adsorbent material and the second filter contains a room-temperature catalyst.

[0032] In a seventh aspect, embodiments of the present invention also provide a computer-readable storage medium storing computer instructions, which are used to cause a computer to execute the control method of the air purifier described in the first aspect or any corresponding embodiment. Attached Figure Description

[0033] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 This is a flowchart of an air purifier control method according to an embodiment of the present invention;

[0035] Figure 2 This is a flowchart of another air purifier control method according to an embodiment of the present invention;

[0036] Figure 3This is a flowchart of another air purifier control method according to an embodiment of the present invention;

[0037] Figure 4 This is a flowchart of another air purifier control method according to an embodiment of the present invention;

[0038] Figure 5 This is a flowchart illustrating an example of an air purifier control method according to an embodiment of the present invention;

[0039] Figure 6 This is a structural block diagram of an air purifier control device according to an embodiment of the present invention;

[0040] Figure 7 This is a schematic diagram of the hardware structure of a computer device according to an embodiment of the present invention. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] According to an embodiment of the present invention, an embodiment of a control method for an air purifier is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0043] This embodiment provides a control method for an air purifier, which can be used in computer equipment. The control method is applied to an air purifier, which includes a first filter and a second filter sequentially arranged in an airflow channel. The first filter contains adsorbent material, and the second filter contains a room-temperature catalyst.

[0044] Figure 1 This is a flowchart of an air purifier control method according to an embodiment of the present invention, such as... Figure 1 As shown, the process includes the following steps:

[0045] Step S101: When a polluted gas removal command is received, turn on the air purifier fan so that the actual adsorption amount of polluted gas in the first filter reaches the preset first threshold.

[0046] Among them, polluting gases refer to gases that pollute the air, which can be volatile organic compounds (VOCs), such as formaldehyde and toluene; or other gases besides VOCs.

[0047] Step S102: When the actual adsorption amount of pollutant gas in the first filter reaches the first threshold, turn off the fan and desorb the pollutant gas adsorbed on the first filter.

[0048] In this embodiment, after the air purifier fan is turned on, the air passes through the first filter and the second filter in sequence in the air purifier. The adsorbent material in the first filter can adsorb pollutants in the air to enrich the pollutants in the air.

[0049] The first threshold can be determined based on the adsorption performance and mass of the adsorbent material. For example, if the formaldehyde adsorption capacity per unit mass of the adsorbent material is M0 mg / g, and the mass of the adsorbent material assembled in the first filter is M g, then the first threshold = M × M0.

[0050] Step S103: After the desorption of the pollutant gas adsorbed on the first filter screen is completed, the fan is restarted so that the desorbed pollutant gas can be catalytically decomposed on the second filter screen.

[0051] In other words, after enrichment is complete, the pollutant gas adsorbed on the first filter is desorbed and then catalytically decomposed on the second filter.

[0052] The second filter contains a room-temperature catalyst, the type of which can be determined based on the pollutant gas.

[0053] The air purifier control method provided in this embodiment, upon receiving a polluted gas removal command, activates the air purifier's fan to ensure the actual adsorption amount of polluted gas in the first filter reaches a preset first threshold. Once this threshold is reached, the fan is turned off to desorb the polluted gas adsorbed on the first filter. After desorption is complete, the fan is restarted to allow the desorbed polluted gas to undergo catalytic decomposition on the second filter. In other words, during air purification, gaseous pollutants are first enriched by adsorption materials. After a certain amount of gaseous pollutants accumulates, they are rapidly removed under the action of a catalytic reaction. This allows the catalytic reaction to occur at relatively high concentrations of gaseous pollutants, ensuring the catalytic effect of the catalyst and further guaranteeing the purification effect of the air purifier utilizing room-temperature catalytic technology.

[0054] This embodiment provides an air purifier and a control method for the air purifier. The air purifier includes a first filter and a second filter sequentially arranged in an airflow channel. The first filter contains an adsorbent material, and the second filter contains a room-temperature catalyst. A heating unit is also provided in the first filter. This allows for the enrichment of gaseous pollutants in the first filter. The enriched gaseous pollutants on the first filter can be desorbed by heating, and the desorbed gaseous pollutants can be catalytically decomposed on the second filter. This allows the catalytic reaction to occur at a relatively high concentration of gaseous pollutants, ensuring the catalytic effect of the catalyst and further guaranteeing the purification effect of the air purifier utilizing room-temperature catalytic technology.

[0055] The control methods for air purifiers are applied to the computer equipment of air purifiers. Figure 2 This is a flowchart of another air purifier control method according to an embodiment of the present invention, such as... Figure 2 As shown, the process includes the following steps:

[0056] Step S201: When a command to remove polluted gas is received, the air purifier fan is turned on, and the first fan speed is obtained.

[0057] Specifically, obtaining the first rotational speed of the fan includes:

[0058] Step a1: Determine whether the removal instruction for polluted gas includes the fan speed information.

[0059] Step a2: When the instruction for removing polluted gas includes the fan speed information, determine the first rotation speed based on the speed information.

[0060] Step a3: When the removal command for polluted gas does not include the fan speed information, the maximum speed of the fan is taken as the first speed of the fan.

[0061] In other words, when the removal command for polluted gas includes the fan speed setting information, the initial fan speed is determined based on the removal command; when the removal command includes the fan speed setting information, the fan is controlled to operate at its maximum speed. This allows for the rapid enrichment of gaseous pollutants.

[0062] Step S202: Obtain the concentration of polluting gas.

[0063] Specifically, sensors can be installed inside the air purifier to obtain the concentration of pollutants. For example, the sensor can be placed in front of the first filter in the air flow channel.

[0064] Step S203: Control the heating unit to heat the filter and make the actual temperature of the first filter screen lower than the preset temperature threshold.

[0065] This is because when gaseous pollutants (such as formaldehyde) are adsorbed in the first filter, the adsorbed pollutants will desorb when the temperature of the first filter is greater than or equal to a preset temperature threshold. The preset temperature threshold can be considered as the desorption temperature of the gaseous pollutants in the first filter. Specifically, the temperature threshold can be determined by the type of adsorbent material in the first filter and the type of gaseous pollutant.

[0066] Meanwhile, when using the adsorption material in the first filter to enrich gaseous pollutants, appropriately increasing the temperature of the first filter can enhance the adsorption reaction effect. Therefore, the heating unit in the first filter can be controlled to heat the filter, while ensuring that the actual temperature of the first filter is lower than the aforementioned temperature threshold.

[0067] Step S204: Determine the theoretical adsorption time when the actual adsorption amount of pollutant gas in the first filter reaches the first threshold based on the first rotation speed and concentration.

[0068] Specifically, the theoretical adsorption time = first threshold / (first rotation speed × concentration).

[0069] For example, regarding formaldehyde, after the air purifier is turned on, the initial formaldehyde concentration detected by the formaldehyde sensor is Cn mg / m³. 3 The formaldehyde adsorption capacity per unit mass of the adsorbent material is M0 mg / g, the mass of the adsorbent material assembled in the first filter is M g, and the first rotation speed is V m. 3 / h, therefore the maximum running time Tn of the purifier is:

[0070]

[0071] As a specific implementation method, after determining the theoretical adsorption time when the actual adsorption amount of pollutant gas in the first filter reaches the first threshold based on the first rotation speed and the concentration, the method further includes: determining whether the theoretical adsorption time is greater than a preset second threshold; when the theoretical adsorption time is greater than the second threshold, the second threshold is used as the theoretical adsorption time. This ensures that the theoretical adsorption time will not be too long.

[0072] Step S205: When the actual running time of the fan reaches the theoretical adsorption time, turn off the fan.

[0073] Step S206: Control the heating unit to heat the filter and make the actual temperature of the first filter higher than the temperature threshold so that the pollutant gas adsorbed on the first filter is desorbed by heating.

[0074] As mentioned above, when the temperature of the first filter is greater than or equal to the preset temperature threshold, the gaseous pollutants adsorbed in the first filter will desorb. Therefore, the first filter can be heated to a temperature higher than the temperature threshold (i.e., the desorption temperature) to desorb the gaseous pollutants adsorbed on the first filter.

[0075] For example, as above, for formaldehyde, let the heating time be denoted as tn, and the formaldehyde desorption rate per unit mass of adsorbent material assembled in the first filter at a specific temperature be denoted as k mg / (g*h).

[0076]

[0077] Step S207: Restart the fan and control it to run at the second speed so that the desorbed pollutant gas undergoes catalytic decomposition on the second filter screen.

[0078] Specifically, the second rotation speed is determined based on the type of catalyst at room temperature. This ensures that the desorbed pollutant gas undergoes maximum decomposition on the second filter screen.

[0079] The air purifier and its control method provided in this embodiment first enrich gaseous pollutants through adsorption materials during air purification. After the gaseous pollutants accumulate to a certain amount, they are then rapidly removed under the action of a catalytic reaction. This allows the catalytic reaction to occur when the concentration of gaseous pollutants is relatively high, ensuring the catalytic effect of the catalyst and further guaranteeing the purification effect of the air purifier using room temperature catalytic technology. Moreover, when enriching gaseous pollutants through adsorption materials, the heating unit in the first filter is controlled to heat the filter, which enhances the adsorption reaction effect.

[0080] This embodiment provides an air purifier and a control method for the air purifier. The air purifier includes a first filter and a second filter sequentially arranged in an airflow channel, a first sealing partition located in front of the first filter, a second sealing partition located behind the first filter, and a pressure-reducing device for reducing pressure in the space enclosed by the first and second sealing partitions. The first filter contains adsorbent material, and the second filter contains a room-temperature catalyst. This allows for the enrichment of gaseous pollutants in the first filter. The enriched gaseous pollutants can be desorbed by pressure reduction, and the desorbed gaseous pollutants can be catalytically decomposed on the second filter. This allows the catalytic reaction to occur at relatively high concentrations of gaseous pollutants, ensuring the catalytic effect of the catalyst and further guaranteeing the purification effect of the air purifier utilizing room-temperature catalytic technology.

[0081] Specifically, a heating unit is also provided in the first filter. This is because appropriately increasing the temperature of the first filter can enhance the adsorption reaction effect, and the heating unit in the first filter can heat the first filter to improve the adsorption reaction effect.

[0082] The control methods for air purifiers are applied to the computer equipment of air purifiers. Figure 3 This is a flowchart of another air purifier control method according to an embodiment of the present invention, such as... Figure 3 As shown, the process includes the following steps:

[0083] Step S301: Upon receiving a command to remove polluted gas, turn on the air purifier's fan and obtain the fan's initial speed. For details, please refer to [link to relevant documentation]. Figure 2 Step S201 of the illustrated embodiment will not be described again here.

[0084] Step S302: Obtain the concentration of polluting gas.

[0085] Step S303: Control the heating unit to heat the filter, ensuring the actual temperature of the first filter is below a preset temperature threshold. For details, please refer to [link to relevant documentation]. Figure 2 Step S203 of the illustrated embodiment will not be described again here.

[0086] Step S304: Determine the theoretical adsorption time required for the actual adsorption amount of pollutant gas in the first filter to reach the first threshold based on the first rotation speed and concentration. For details, please refer to [link to relevant documentation]. Figure 2 Step S204 of the illustrated embodiment will not be described again here.

[0087] Step S305: When the actual running time of the fan reaches the theoretical adsorption time, turn off the fan.

[0088] Step S306: Control the first sealing partition and the second sealing partition to close, and turn on the pressure reducing device to desorb the pollutant gas adsorbed on the first filter screen.

[0089] In this embodiment, the first sealing partition is located in front of the first filter screen and the second sealing partition is located behind the first filter screen. Therefore, after the first and second sealing partitions are closed, the pressure reducing device is turned on, which allows the gaseous pollutants adsorbed on the first filter screen to be rapidly desorbed under pressure reducing conditions.

[0090] Step S307: Control the opening of the first and second sealing partitions, restart the fan, and control the fan to run at the second speed so that the desorbed pollutant gas undergoes catalytic decomposition on the second filter screen.

[0091] Specifically, the second rotation speed is determined based on the type of catalyst at room temperature.

[0092] The air purifier and its control method provided in this embodiment first enrich gaseous pollutants using adsorption materials. After accumulating to a certain amount, decomposition is accelerated by reducing pressure. Then, the gaseous pollutants are rapidly removed under the action of a catalytic reaction. This is achieved through the coordinated use of a first filter, a pressure reducing device, and a second filter, completing a cycle of three steps: enrichment of gaseous pollutants, decomposition under reduced pressure, and a room-temperature catalytic reaction, thereby achieving the purpose of removing gaseous pollutants from the home environment. This method not only allows the catalytic reaction to occur at relatively high concentrations of gaseous pollutants, ensuring the catalytic effect of the catalyst and further guaranteeing the purification effect of the air purifier utilizing room-temperature catalytic technology; but also, by controlling the heating unit in the first filter during the enrichment of gaseous pollutants using adsorption materials, the adsorption reaction effect can be enhanced.

[0093] This embodiment provides an air purifier and a control method for the air purifier. The air purifier includes a first filter and a second filter sequentially arranged in an airflow channel, a first sealing partition located in front of the first filter, a second sealing partition located behind the first filter, and a pressure-reducing device for reducing pressure in the space enclosed by the first and second sealing partitions. The first filter contains adsorbent material, and the second filter contains a room-temperature catalyst. This allows for the enrichment of gaseous pollutants in the first filter. The enriched gaseous pollutants can be desorbed by pressure reduction, and the desorbed gaseous pollutants can be catalytically decomposed on the second filter. This allows the catalytic reaction to occur at relatively high concentrations of gaseous pollutants, ensuring the catalytic effect of the catalyst and further guaranteeing the purification effect of the air purifier utilizing room-temperature catalytic technology.

[0094] Specifically, a heating unit is also provided in the first filter. This is because appropriately increasing the temperature of the first filter can enhance the adsorption reaction effect, and the heating unit in the first filter can heat the first filter to improve the adsorption reaction effect.

[0095] The control methods for air purifiers are applied to the computer equipment of air purifiers. Figure 4 This is a flowchart of another air purifier control method according to an embodiment of the present invention, such as... Figure 4 As shown, the process includes the following steps:

[0096] Step S401: Upon receiving a command to remove polluted gas, turn on the air purifier's fan and obtain the fan's initial speed. For details, please refer to [link to relevant documentation]. Figure 2 Step S201 of the illustrated embodiment will not be described again here.

[0097] Step S402: Obtain the concentration of polluting gas.

[0098] Step S403: Determine the theoretical adsorption time required for the actual adsorption amount of pollutant gas in the first filter to reach the first threshold based on the first rotation speed and concentration. For details, please refer to [link to relevant documentation]. Figure 2 Step S203 of the illustrated embodiment will not be described again here.

[0099] Step S404: Obtain the actual operating time of the wind turbine.

[0100] Step S405: Determine whether the actual running time has reached the theoretical adsorption time. If not, proceed to step S406; if so, proceed to step S407.

[0101] Step S406: Determine whether a mode adjustment command or a power-off command has been received. If received, proceed to step S407; otherwise, proceed to step S405.

[0102] Step S407: Turn off the fan and desorb the pollutant gas adsorbed on the first filter screen.

[0103] Specifically, the desorption of pollutants adsorbed on the first filter screen can be achieved by heating or by depressurization.

[0104] Step S408: Restart the fan and control it to run at the second speed so that the desorbed pollutant gas undergoes catalytic decomposition on the second filter screen.

[0105] Step S408: After the desorbed pollutant gas has completed catalytic decomposition on the second filter, execute the mode adjustment command or the shutdown command.

[0106] In other words, during the enrichment process of the air purifier, if it receives a mode adjustment command or a shutdown command from the user, it needs to immediately turn off the fan, desorb the pollutants adsorbed on the first filter, and then complete the catalytic decomposition of the pollutants through the room temperature catalytic filter. After completion, it will then execute the user's mode adjustment command or shutdown command.

[0107] Furthermore, prior to step S407, the method also includes: issuing a reminder message to the user that the enrichment of gaseous pollutants is currently underway.

[0108] The air purifier and its control method provided in this embodiment first enrich gaseous pollutants through adsorption materials during air purification. After the gaseous pollutants accumulate to a certain amount, they are then rapidly removed under the action of a catalytic reaction. This allows the catalytic reaction to occur when the concentration of gaseous pollutants is relatively high, ensuring the catalytic effect of the catalyst and further guaranteeing the purification effect of the air purifier using room temperature catalytic technology. Moreover, during the enrichment process, when a user issues a mode adjustment command or a shutdown command, the mode adjustment command or shutdown command is issued only after the catalytic decomposition is completed. This ensures that the first filter does not contain adsorbed gaseous pollutants, and that the gaseous pollutants adsorbed in the first filter do not cause secondary air pollution.

[0109] To provide a more detailed description of the air purifier and its control method according to embodiments of the present invention, a control method for formaldehyde removal using an air purifier is given. For example... Figure 5 As shown, the control method for an air purifier includes the following steps:

[0110] When the air purifier is turned on to the smart formaldehyde mode, the fan starts and runs at the highest speed. The formaldehyde sensor detects the indoor formaldehyde concentration Cn, and the theoretical adsorption time Tn is obtained by combining the formaldehyde concentration and the fan speed. The air purifier then uses the adsorption filter to enrich the gaseous pollutants in the room. During this process, the first and second sealing partitions are in the open state.

[0111] When Tn < 240 min (i.e., the second threshold), Tn is taken as the theoretical adsorption practice. After enrichment is completed, the purifier fan is turned off, the first and second sealing partitions are closed, and the pressure reducing device is turned on to reduce the pressure in the space where the adsorbent material is located, thus completing the depressurization desorption and regeneration of the adsorbent material. Then, the first and second sealing partitions are turned on, and the air purifier fan is turned on, so that the gas concentrated after desorption passes through the room temperature catalytic filter, which completes the catalytic decomposition of the pollutant gas, thus completing one round of purification process.

[0112] After the above three steps of enriching gaseous pollutants, depressurizing and desorbing, and removing them through catalytic reaction are completed, the purifier will continue to run at the current fan speed for a period of time. Then, the formaldehyde sensor will again detect an indoor pollutant concentration of Cn+1 mg / m3, and the above three steps will be repeated until the user manually switches to another mode or turns the purifier off.

[0113] When Tn≥240min, 240min is taken as the theoretical adsorption time. After enrichment is completed, the purifier fan is turned off, the first and second sealing partitions are closed and the pressure reducing device is turned on to reduce the pressure in the space where the adsorbent material is located, thus completing the depressurization desorption and regeneration of the adsorbent material. Then, the first and second sealing partitions are turned on and the air purifier fan is turned on, so that the gas concentrated after desorption passes through the room temperature catalytic filter, which completes the catalytic decomposition of the pollutant gas, thus completing one round of purification process.

[0114] After the above three steps of enriching gaseous pollutants, depressurizing and desorbing, and removing them through catalytic reaction are completed, the purifier will continue to run at the current fan speed for a period of time. Then, the formaldehyde sensor will again detect an indoor pollutant concentration of Cn+1 mg / m3, and the above three steps will be repeated until the user manually switches to another mode or turns the purifier off.

[0115] This embodiment also provides a control device for an air purifier, which is used to implement the above embodiments and preferred embodiments; details already described will not be repeated. As used below, the term "module" can refer to a combination of software and / or hardware that implements a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0116] This embodiment provides a control device for an air purifier, applied to an air purifier. The air purifier includes a first filter and a second filter arranged sequentially in an airflow channel, wherein the first filter contains adsorbent material and the second filter contains a room-temperature catalyst. Figure 6 As shown, the control device of the air purifier includes an enrichment module 601, a desorption module 602, and a decomposition module 603.

[0117] When a command to remove pollutants is received, the enrichment module 601 turns on the fan of the air purifier so that the actual amount of pollutants adsorbed in the first filter reaches a preset first threshold.

[0118] When the actual adsorption amount of pollutant gas in the first filter reaches the first threshold, the desorption module 602 is used to shut down the fan and desorb the pollutant gas adsorbed on the first filter.

[0119] After the desorption of pollutant gas adsorbed on the first filter screen is completed, the decomposition module 603 is used to restart the fan so that the desorbed pollutant gas can be catalytically decomposed on the second filter screen.

[0120] In one alternative implementation, the enrichment module 601 includes:

[0121] The fan control unit is used to turn on the air purifier's fan.

[0122] The first acquisition unit is used to acquire the first rotational speed of the fan;

[0123] The second acquisition unit is used to acquire the concentration of polluting gases;

[0124] The theoretical adsorption time determination unit is used to determine the theoretical adsorption time when the actual adsorption amount of pollutant gas in the first filter reaches the first threshold based on the first rotation speed and concentration.

[0125] The processing unit is used to determine that the actual adsorption amount of pollutant gas in the first filter reaches a preset first threshold when the actual running time of the fan reaches the theoretical adsorption time.

[0126] Specifically, the fan control unit can send an activation command to the fan to turn on the air purifier's fan.

[0127] In an optional implementation, after determining the theoretical adsorption time when the actual adsorption amount of pollutant gas in the first filter reaches the first threshold based on the first rotation speed and the concentration, the theoretical adsorption time determination unit is further configured to: determine whether the theoretical adsorption time is greater than a preset second threshold; when the theoretical adsorption time is greater than the second threshold, use the second threshold as the theoretical adsorption time.

[0128] In one optional implementation, the first acquisition unit is specifically used to: determine whether the removal instruction for polluted gas contains fan speed information; when the removal instruction for polluted gas contains fan speed information, determine the first rotation speed based on the speed information; otherwise, use the maximum rotation speed of the fan as the first rotation speed of the fan.

[0129] In one alternative embodiment, the decomposition module 603 includes a fan control unit. The fan control unit is used to restart the fan and control the fan to operate at a second speed so that the desorbed pollutant gas undergoes catalytic decomposition on the second filter screen, wherein the second speed is determined according to the type of catalyst at room temperature.

[0130] In one optional embodiment, the first filter includes a heating unit, and the air purifier's control device further includes a heating module. With the heating unit in the first filter, after the air purifier's fan is turned on but before the actual adsorption amount of pollutant gas in the first filter reaches a first threshold, the heating module controls the heating unit to heat the filter and keep the actual temperature of the first filter below a preset temperature threshold.

[0131] In one optional embodiment, a heating unit is provided in the first filter screen. The desorption module 602 is specifically used to control the heating unit to heat the first filter screen and make the actual temperature of the first filter screen higher than a temperature threshold, so as to heat and desorb the pollutant gas adsorbed on the first filter screen.

[0132] In an optional embodiment, the airflow channel further includes a first sealing partition located in front of the first filter and a second sealing partition located behind the first filter, as well as a pressure-reducing device for reducing pressure in the space enclosed by the first and second sealing partitions. The desorption module 602 is specifically used to control the first and second sealing partitions to close and to activate the pressure-reducing device, so that the pollutant gas adsorbed on the first filter is depressurized and desorbed.

[0133] In one optional embodiment, the control device of the air purifier further includes an instruction receiving module and a jump module. After the air purifier fan is turned on and before the actual adsorption amount of pollutant gas in the first filter reaches a first threshold, the instruction receiving module is used to determine whether a mode adjustment instruction or a shutdown instruction has been received; when a mode adjustment instruction or a shutdown instruction is received, the jump module is used to jump to "turn off the fan and desorb the pollutant gas adsorbed on the first filter; after the desorption of the pollutant gas adsorbed on the first filter is completed, turn the fan back on so that the desorbed pollutant gas can be catalytically decomposed on the second filter".

[0134] In this embodiment, the control device of the air purifier is presented in the form of a functional unit. Here, a unit refers to an ASIC circuit, a processor and memory that execute one or more software or fixed programs, and / or other devices that can provide the above functions.

[0135] Further functional descriptions of the above modules and units are the same as those in the corresponding embodiments described above, and will not be repeated here.

[0136] This invention also provides a computer device having the above-described features. Figure 6 The control device of the air purifier shown.

[0137] This invention also provides an air purifier, including the aforementioned computer device. The air purifier includes a first filter and a second filter sequentially arranged in an airflow channel, wherein the first filter contains an adsorbent material, and the second filter contains a room-temperature catalyst.

[0138] Specifically, the first filter screen is equipped with a heating unit.

[0139] Specifically, the airflow channel also includes a first sealing partition located in front of the first filter and a second sealing partition located behind the first filter, as well as a pressure reducing device for reducing pressure in the space enclosed by the first sealing partition and the second sealing partition.

[0140] Please see Figure 7 , Figure 7 This is a schematic diagram of the structure of a computer device provided in an optional embodiment of the present invention, such as... Figure 7As shown, the computer device includes one or more processors 10, memory 20, and interfaces for connecting the components, including high-speed interfaces and low-speed interfaces. The components communicate with each other via different buses and can be mounted on a common motherboard or otherwise installed as needed. The processors can process instructions executed within the computer device, including instructions stored in or on memory to display graphical information of a GUI on external input / output devices (such as display devices coupled to the interfaces). In some alternative implementations, multiple processors and / or multiple buses can be used with multiple memories and multiple memory modules, if desired. Similarly, multiple computer devices can be connected, each providing some of the necessary operations (e.g., as a server array, a group of blade servers, or a multiprocessor system). Figure 7 Take a processor 10 as an example.

[0141] Processor 10 may be a central processing unit, a network processor, or a combination thereof. Processor 10 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The programmable logic device may be a complex programmable logic device (CAMP), a field-programmable gate array (FPGA), a general-purpose array logic (GDA), or any combination thereof.

[0142] The memory 20 stores instructions executable by at least one processor 10 to cause at least one processor 10 to perform the method shown in the above embodiments.

[0143] The memory 20 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the computer device as shown by a landing page for an app. Furthermore, the memory 20 may include high-speed random access memory and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some alternative embodiments, the memory 20 may optionally include memory remotely located relative to the processor 10, which can be connected to the computer device via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0144] The memory 20 may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as flash memory, hard disk or solid-state drive; the memory 20 may also include a combination of the above types of memory.

[0145] The computer device also includes an input device 30 and an output device 40. The processor 10, memory 20, input device 30, and output device 20 can be connected via a bus or other means. Figure 7 Taking the example of a connection between China and Israel via a bus.

[0146] Input device 30 can receive input numerical or character information, and generate key signal inputs related to user settings and function control of the computer device, such as a touchscreen, keypad, mouse, trackpad, touchpad, joystick, one or more mouse buttons, trackball, joystick, etc. Output device 40 may include display devices, auxiliary lighting devices (e.g., LEDs), and haptic feedback devices (e.g., vibration motors). The aforementioned display devices include, but are not limited to, liquid crystal displays, light-emitting diodes, displays, and plasma displays. In some alternative embodiments, the display device may be a touchscreen.

[0147] This invention also provides a computer-readable storage medium. The methods described above according to embodiments of the invention can be implemented in hardware or firmware, or implemented as computer code that can be recorded on a storage medium, or implemented as computer code downloaded via a network and originally stored on a remote storage medium or a non-transitory machine-readable storage medium and then stored on a local storage medium. Thus, the methods described herein can be processed by software stored on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. The storage medium can be a magnetic disk, optical disk, read-only memory, random access memory, flash memory, hard disk, or solid-state drive, etc.; further, the storage medium can also include combinations of the above types of memory. It is understood that computers, processors, microprocessor controllers, or programmable hardware include storage components capable of storing or receiving software or computer code, which, when accessed and executed by the computer, processor, or hardware, implements the methods shown in the above embodiments.

[0148] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. An air purifier, characterized in that, The air purifier includes a first filter and a second filter arranged sequentially in an air flow channel, wherein the first filter contains an adsorbent material and the second filter contains a room temperature catalyst. The air flow channel also includes a first sealing partition located in front of the first filter and a second sealing partition located behind the first filter, as well as a pressure reducing device for reducing the pressure in the space enclosed by the first sealing partition and the second sealing partition. The air purifier also includes a control device, which includes: The enrichment module, when receiving a command to remove pollutant gas, is used to turn on the fan of the air purifier so that the actual adsorption amount of pollutant gas in the first filter reaches a preset first threshold. The desorption module is used to shut down the fan and desorb the pollutant gas adsorbed on the first filter when the actual adsorption amount of pollutant gas in the first filter reaches the first threshold. The decomposition module is used to restart the fan after the pollutant gas adsorbed on the first filter screen is desorbed, so that the desorbed pollutant gas can be catalytically decomposed on the second filter screen. The desorption module is specifically used to: control the first sealing partition and the second sealing partition to close, and to turn on the pressure reducing device so that the pollutant gas adsorbed on the first filter screen is depressurized and desorbed.

2. A control method for an air purifier, characterized in that, The air purifier includes a first filter and a second filter arranged sequentially in an airflow channel, wherein the first filter contains an adsorbent material and the second filter contains a room-temperature catalyst. The control method of the air purifier includes: When a command to remove polluted gas is received, the fan of the air purifier is turned on so that the actual amount of polluted gas adsorbed in the first filter reaches a preset first threshold. When the actual amount of pollutant gas adsorbed in the first filter reaches the first threshold, the fan is turned off and the pollutant gas adsorbed on the first filter is desorbed. After the pollutant gas adsorbed on the first filter screen is desorbed, the fan is restarted so that the desorbed pollutant gas can be catalytically decomposed on the second filter screen. The airflow channel also includes a first sealing partition located in front of the first filter and a second sealing partition located behind the first filter, and a pressure reducing device for reducing the pressure in the space enclosed by the first sealing partition and the second sealing partition. The desorption of pollutant gas adsorbed on the first filter includes: The first and second sealing partitions are closed, and the pressure reducing device is activated to depressurize and desorb the pollutant gas adsorbed on the first filter screen.

3. The method according to claim 2, characterized in that, Turning on the air purifier's fan to make the actual adsorption amount of pollutant gas in the first filter reach a preset first threshold includes: Turn on the fan of the air purifier and obtain the first speed of the fan; Obtain the concentration of the polluting gas; The theoretical adsorption time when the actual adsorption amount of pollutant gas in the first filter reaches the first threshold is determined based on the first rotation speed and the concentration. When the actual operating time of the fan reaches the theoretical adsorption time, it is determined that the actual adsorption amount of pollutant gas in the first filter has reached a preset first threshold.

4. The method according to claim 3, characterized in that, After determining the theoretical adsorption time for the actual adsorption amount of pollutant gas in the first filter to reach the first threshold based on the first rotation speed and the concentration, the method further includes: Determine whether the theoretical adsorption time is greater than a preset second threshold; When the theoretical adsorption time is greater than the second threshold, the second threshold is taken as the theoretical adsorption time.

5. The method according to claim 3, characterized in that, The process of obtaining the first rotational speed of the fan includes: Determine whether the instruction for removing pollutants contains the fan speed information; When the instruction for removing polluted gas includes the fan's speed information, the first rotational speed is determined based on the speed information; Otherwise, the maximum speed of the fan shall be taken as the first speed of the fan.

6. The method according to claim 2, characterized in that, Restarting the fan to allow the desorbed pollutant gas to undergo catalytic decomposition on the second filter screen includes: The fan is restarted and controlled to run at a second speed so that the desorbed pollutant gas undergoes catalytic decomposition on the second filter screen, wherein the second speed is determined according to the type of the ambient temperature catalyst.

7. The method according to claim 2, characterized in that, The first filter screen is equipped with a heating unit, and after the air purifier fan is turned on but before the actual adsorption amount of pollutant gas in the first filter screen reaches the first threshold, it further includes: The heating unit is controlled to heat the filter, and the actual temperature of the first filter is kept below a preset temperature threshold.

8. The method according to claim 7, characterized in that, The desorption of pollutant gas adsorbed on the first filter screen includes: The heating unit is controlled to heat the filter, and the actual temperature of the first filter is made higher than the temperature threshold, so that the pollutant gas adsorbed on the first filter is desorbed by heating.

9. The method according to claim 2, characterized in that, After the air purifier fan is turned on, but before the actual adsorption amount of pollutant gas in the first filter reaches the first threshold, the process further includes: Determine whether a mode adjustment command or a power-off command has been received; When the mode adjustment command or shutdown command is received, the fan is turned off and the polluted gas adsorbed on the first filter screen is desorbed. After the pollutant gas adsorbed on the first filter screen is desorbed, the fan is restarted so that the desorbed pollutant gas can be catalytically decomposed on the second filter screen.

10. A control device for an air purifier, characterized in that, The air purifier includes a first filter and a second filter arranged sequentially in an airflow channel, wherein the first filter contains an adsorbent material and the second filter contains a room-temperature catalyst. The control device of the air purifier includes: The enrichment module, when receiving a command to remove pollutant gas, is used to turn on the fan of the air purifier so that the actual adsorption amount of pollutant gas in the first filter reaches a preset first threshold. The desorption module is used to shut down the fan and desorb the pollutant gas adsorbed on the first filter when the actual adsorption amount of pollutant gas in the first filter reaches the first threshold. The decomposition module is used to restart the fan after the pollutant gas adsorbed on the first filter screen is desorbed, so that the desorbed pollutant gas can be catalytically decomposed on the second filter screen. The airflow channel also includes a first sealing partition located in front of the first filter and a second sealing partition located behind the first filter, as well as a decompression device for depressurizing the space enclosed by the first sealing partition and the second sealing partition. The desorption module is specifically used to: control the first sealing partition and the second sealing partition to close, and turn on the decompression device to depressurize and desorb the pollutant gas adsorbed on the first filter.

11. A computer device, characterized in that, include: A memory and a processor are communicatively connected, the memory stores computer instructions, and the processor executes the computer instructions to perform the control method of the air purifier according to any one of claims 2 to 9.

12. An air purifier, characterized in that, The device includes a first filter, a second filter, and the computer device of claim 11, which are sequentially arranged in an airflow channel, wherein the first filter contains an adsorbent material and the second filter contains a room-temperature catalyst.

13. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions for causing the computer to perform the control method of the air purifier according to any one of claims 2 to 9.

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