CN110030661B - Filter screen replacement reminding method and air purifier - Google Patents
Filter screen replacement reminding method and air purifier Download PDFInfo
- Publication number
- CN110030661B CN110030661B CN201910218169.7A CN201910218169A CN110030661B CN 110030661 B CN110030661 B CN 110030661B CN 201910218169 A CN201910218169 A CN 201910218169A CN 110030661 B CN110030661 B CN 110030661B
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- filter screen
- dust
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- air
- replacement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
- F24F11/39—Monitoring filter performance
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
Abstract
The invention belongs to the technical field of air purification, and particularly provides a filter screen replacement reminding method and an air purifier. In order to more accurately judge whether the filter screen of the air purifier needs to be replaced, the filter screen replacement reminding method provided by the invention comprises the following steps: detecting a first dust value at the filter screen; blowing air to the filter screen to blow up the dust on the filter screen, and detecting a second dust value at the filter screen again; and judging whether to send out a prompt for replacing the filter screen according to the first dust value and the second dust value. Since the first dust value represents the value of airborne dust when dust on the screen has not been blown into the air and the second dust value represents the value of airborne dust after dust has been blown into the air, the difference between the two values represents the value of dust blown off the screen. Therefore, whether the filter screen needs to be replaced can be accurately judged according to the reminding mode of judging whether the filter screen needs to be replaced or not according to the first dust numerical value and the second dust numerical value, so that a user can replace the filter screen in time.
Description
Technical Field
The invention belongs to the technical field of air purification, and particularly provides a filter screen replacement reminding method and an air purifier.
Background
The core components of the air purifier are a filter screen and a fan, the fan sucks external air into the air purifier through rotation, then pushes the air to pass through the filter screen for filtering, and finally discharges the filtered air, so that air purification is realized. Air purifier's filter screen has certain life, and along with the live time of filter screen increases gradually, the pollutant that accumulates on the filter screen can be more and more, and the pollutant can block up the filter screen gradually, therefore the filter screen also can deteriorate gradually to the filtration purification effect of air, and when the filter screen can not reach the standard to the filter effect of air, it has arrived to mean that filter screen life has arrived, needs to change or clear up air purifier's filter screen.
The working time of the machine is generally accumulated by using a timing module, and whether a filter screen needs to be replaced is judged only by adopting the working time and is not accurate for an air purifier product, so that a lot of misjudgments sometimes exist.
Therefore, the invention provides a filter screen replacement reminding method and an air purifier to solve the problems.
Disclosure of Invention
In order to solve the above problems in the prior art, that is, to more accurately determine whether the filter screen of the air purifier needs to be replaced, the present invention provides a filter screen replacement reminding method, which includes the following steps: s110, detecting a first dust value at the filter screen; s120, blowing air to the filter screen to blow up dust on the filter screen, and detecting a second dust value at the filter screen again; s130, judging whether a prompt for replacing the filter screen is sent according to the first dust value and the second dust value.
In a preferred embodiment of the above-mentioned filter screen replacement reminding method, in step S120, after the air is blown to the filter screen for a time exceeding a preset time, the second dust value at the filter screen is detected again.
In a preferred embodiment of the method for prompting replacement of a filter screen, step S130 specifically includes: the difference Δ P is equal to the second dust value — the first dust value; comparing with a preset value; and judging whether to send out a prompt for replacing the filter screen according to the comparison result of the difference value delta P and the preset value.
In an embodiment of the method for prompting filter screen replacement, the step of determining whether to issue a prompt to replace a filter screen according to a comparison result between the difference Δ P and the preset value specifically includes: when the delta P is larger than or equal to the preset value, a prompt for replacing the filter screen is sent; otherwise, no reminder is sent.
In a preferred embodiment of the above-described filter screen replacement prompting method, the filter screen replacement prompting method further includes: and sending the replacement prompt of the filter screen to a user terminal under the condition that the prompt of replacing the filter screen needs to be sent.
In a preferred embodiment of the above-described screen replacement prompting method, in steps S110 and S120, the first dust value and the second dust value are both detected by a dust sensor provided at the screen.
In a preferred embodiment of the above-described filter screen replacement prompting method, in step S120, air is blown to the filter screen by a dedicated detection fan provided at the filter screen.
In a preferred embodiment of the above-described filter screen replacement prompting method, the filter screen replacement prompting method is used for an air cleaner.
In a preferred embodiment of the above method for prompting replacement of a filter screen, the air purifier includes a blower, and the blower is used for sucking external air into the air purifier when rotating forward; the fan is used for blowing air to the filter screen when rotating reversely; in step S120, when blowing air to the filter screen, the fan is controlled to rotate reversely to blow up the dust on the filter screen.
The invention also provides an air purifier which comprises the filter screen and comprises a controller, wherein the controller is set to be capable of executing the filter screen replacement reminding method.
The method and the device judge whether to send out the prompt of replacing the filter screen according to the first dust value and the second dust value. Specifically, since the first dust value represents the air dust value when the dust on the screen has not been blown into the air, and the second dust value represents the air dust value after the dust is blown into the air, the difference between the two values represents the dust value blown out from the screen. And then comparing the dust value with a preset value, and when the delta P is larger than or equal to the preset value, namely the dust value on the filter screen is higher, the filter screen needs to be replaced, and at the moment, a prompt for replacing the filter screen is sent. This mode can accurately judge whether the filter screen needs to be changed to the user can in time change the filter screen.
Drawings
Fig. 1 is a main flowchart of a filter screen replacement reminding method according to the present invention.
Detailed Description
In order to make the embodiments, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
Referring to fig. 1, fig. 1 is a main flow chart of a filter screen replacement reminding method of the present invention. As shown in fig. 1, the method for reminding filter screen replacement of the present invention comprises the following steps: s110, detecting a first dust value at a filter screen; s120, blowing air to the filter screen to blow up the dust on the filter screen, and detecting a second dust value at the filter screen again; s130, judging whether a prompt for replacing the filter screen is sent according to the first dust value and the second dust value.
Specifically, in step S110, a first dust value at the screen may be detected using a dust sensor provided at the screen; in step S120, the second dust value at the filter screen may also be detected by the dust sensor. It should be noted that the "first dust value" is understood as a static dust value of the filter, i.e., a concentration of dust statically attached to the filter; the term "second dust value" is understood to mean the dynamic dust value of the filter screen, i.e. the concentration of dust blown off from the filter screen.
As an example, in step S120, when the second dust value at the filter screen is detected, air is blown to the filter screen, and after the blowing time exceeds the preset time, the second dust value at the filter screen is detected again. The preset time can be flexibly set by a person skilled in the art according to actual conditions, for example, set to 10 seconds, 20 seconds, 1 minute, etc., as long as the set time can blow up the dust on the filter screen for detection. As an example, when blowing air to the filter screen, the filter screen may be blown air by a dedicated detection fan disposed at the filter screen.
In a specific embodiment, in step S130, a difference Δ P between the second dust value and the second dust value may be calculated, where Δ P is the second dust value — the first dust value, and then the difference Δ P is compared with a preset value, and whether to issue a prompt for replacing the filter screen is determined according to the comparison result. Specifically, when the delta P is larger than or equal to a preset value, a prompt for replacing the filter screen is sent; otherwise, no reminder is sent. Since the first dust value represents the value of airborne dust when dust on the screen has not been blown into the air and the second dust value represents the value of airborne dust after dust has been blown into the air, the difference between the two values represents the value of dust blown off the screen. And then whether a prompt for replacing the filter screen is sent is judged by comparing the dust value with a preset value. The preset value can be obtained by a person skilled in the art through experiments, and represents a critical value of dust when the filter screen needs to be replaced, as long as the preset value can indicate that the filter screen needs to be replaced.
Further, under the condition that the prompt of replacing the filter screen needs to be sent out, the prompt of replacing the filter screen can be sent to the user terminal. Thus, the user can receive the replacement prompt in the first time so as to replace the filter screen in time.
In a specific embodiment, the filter screen replacement reminding method is used for an air purifier. As an example, a dust sensor may be provided on the air purifier to detect the first dust value and the second dust value, respectively; can also set up special detection fan on air purifier, when detecting the second dust value, utilize to detect the fan and blow to air purifier's filter screen. As another example, the air purifier may be directly blown to the filter screen by a blower of the air purifier itself without providing a dedicated detection fan. Specifically, the fan of the air purifier is set as: the fan is used for sucking outside air into the air purifier in forward rotation, and the fan is used for blowing air to the filter screen in reverse rotation. Thus, in step S120, the fan only needs to be controlled to rotate reversely.
In addition, the filter screen in the above-mentioned can also be used to products such as domestic air conditioner, vehicle air conditioner except being used for air purifier, obtains other equipment of using the filter screen. The invention does not limit the specific use scene of the filter screen.
In summary, the present invention determines whether to send a prompt for replacing the filter screen according to the first dust value and the second dust value. Specifically, since the first dust value represents the air dust value when the dust on the screen has not been blown into the air, and the second dust value represents the air dust value after the dust is blown into the air, the difference between the two values represents the dust value blown out from the screen. And then comparing the dust value with a preset value, and when the delta P is larger than or equal to the preset value, namely the dust value on the filter screen is higher, the filter screen needs to be replaced, and at the moment, a prompt for replacing the filter screen is sent. This mode can accurately judge whether the filter screen needs to be changed to the user can in time change the filter screen.
In addition, the invention also provides an air purifier, which comprises a filter screen and a controller, wherein the controller is set to be capable of executing the filter screen replacement reminding method. For a specific filter screen replacement reminding method, see the above description, and no further description is given here.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (8)
1. A filter screen replacement reminding method is characterized by comprising the following steps:
s110, detecting a first dust value at the filter screen;
s120, blowing air to the filter screen to blow up dust on the filter screen, and detecting a second dust value at the filter screen again;
s130, judging whether a prompt for replacing a filter screen is sent or not according to the first dust value and the second dust value;
wherein the first dust value represents an air dust value when dust on the filter screen is not blown into the air, and the second dust value represents an air dust value after the dust is blown into the air;
wherein, step S130 specifically includes:
comparing the difference Δ P = second dust value-first dust value with a preset value;
judging whether a prompt for replacing the filter screen is sent or not according to a comparison result of the difference value delta P and the preset value;
the step of judging whether to send out a prompt for replacing the filter screen according to the comparison result of the difference value delta P and the preset value specifically comprises the following steps:
when the delta P is larger than or equal to the preset value, a prompt for replacing the filter screen is sent; otherwise, no reminder is sent.
2. The method for reminding filter screen replacement according to claim 1, wherein in step S120, after the air blowing time to the filter screen exceeds a preset time, the second dust value at the filter screen is detected again.
3. The filter screen replacement prompting method according to claim 1 or 2, further comprising:
and sending the replacement prompt of the filter screen to a user terminal under the condition that the prompt of replacing the filter screen needs to be sent.
4. The filter screen replacement reminding method according to claim 1 or 2, wherein, in step S110 and step S120,
the first dust value and the second dust value are detected by dust sensors arranged at the filter screen.
5. The method for reminding filter screen replacement according to claim 1 or 2, wherein in step S120, a dedicated detection fan disposed at the filter screen is used to blow air to the filter screen when blowing air to the filter screen.
6. The filter screen replacement prompting method according to claim 1 or 2, wherein the filter screen replacement prompting method is used for an air purifier.
7. The filter screen replacement reminding method according to claim 6, wherein the air purifier comprises a fan, and the fan is used for sucking outside air into the air purifier when rotating forwards; the fan is used for blowing air to the filter screen when rotating reversely;
in step S120, when blowing air to the filter screen, the fan is controlled to rotate reversely to blow up the dust on the filter screen.
8. An air purifier comprising a filter screen, wherein the air purifier comprises a controller configured to perform the filter screen replacement reminding method of any one of claims 1 to 5.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910218169.7A CN110030661B (en) | 2019-03-21 | 2019-03-21 | Filter screen replacement reminding method and air purifier |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910218169.7A CN110030661B (en) | 2019-03-21 | 2019-03-21 | Filter screen replacement reminding method and air purifier |
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| CN110030661A CN110030661A (en) | 2019-07-19 |
| CN110030661B true CN110030661B (en) | 2021-09-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111197837A (en) * | 2019-12-23 | 2020-05-26 | 宁波奥克斯电气股份有限公司 | Self-cleaning control method and device for filter screen and air conditioner |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101256122A (en) * | 2007-02-27 | 2008-09-03 | 香港理工大学 | Dust collection apparatus for measuring particle matter in air |
| CN101832612A (en) * | 2010-04-14 | 2010-09-15 | 深圳市中兴新地通信器材有限公司 | Efficient automatic dust-removing and intelligent ventilation system and automatic dust-removing method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6367585B2 (en) * | 2014-03-25 | 2018-08-01 | 株式会社ハーマン | Bathroom equipment |
| CN107166662A (en) * | 2017-06-05 | 2017-09-15 | 广东美的环境电器制造有限公司 | A kind of strainer filtering efficient state reminding method and air purifier |
| CN109373469B (en) * | 2018-09-20 | 2020-11-10 | 苏州市相城区阳澄产业园发展有限公司 | Domestic air cleaner that can recycle |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101256122A (en) * | 2007-02-27 | 2008-09-03 | 香港理工大学 | Dust collection apparatus for measuring particle matter in air |
| CN101832612A (en) * | 2010-04-14 | 2010-09-15 | 深圳市中兴新地通信器材有限公司 | Efficient automatic dust-removing and intelligent ventilation system and automatic dust-removing method |
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Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant after: Haier Zhijia Co.,Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant before: Qingdao Haier Joint Stock Co.,Ltd. |
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