CN211324742U - Dust collector filter screen replacement reminding circuit and dust collector - Google Patents
Dust collector filter screen replacement reminding circuit and dust collector Download PDFInfo
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- CN211324742U CN211324742U CN201921469598.3U CN201921469598U CN211324742U CN 211324742 U CN211324742 U CN 211324742U CN 201921469598 U CN201921469598 U CN 201921469598U CN 211324742 U CN211324742 U CN 211324742U
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Abstract
The utility model relates to a warning circuit and dust catcher are changed to dust catcher filter screen. The dust collector filter screen replacement reminding circuit comprises a timer unit and a controller, wherein the timer unit is used for recording the installation time of the filter screen and the working time of the dust collector after the filter screen is installed; and the processing unit is connected with the timer unit and used for judging whether the working time and the installation time reach a set value after being superposed and outputting a warning signal after the working time and the installation time reach the set value. This application superposes after taking notes through the operating time behind the installation time to the dust catcher filter screen and the dust catcher installation filter screen to time after will superposing and the settlement time threshold value of predetermineeing carry out the comparison, and remind the user to change the filter screen when surpassing the time threshold value of predetermineeing, can realize more nimble filter screen change and remind, prevent because the filter capacity of filter screen descends, cause the damage to the dust catcher.
Description
Technical Field
The utility model relates to the technical field of household appliances, especially, relate to a warning circuit and dust catcher are changed to dust catcher filter screen.
Background
With the progress of science and technology and the improvement of the living standard of people, more and more intelligent products enter the lives of people, so that the lives of people are greatly changed. For example, a dust collector in the field of household appliances can help people clean floors or blankets in a house, so that convenience can be brought to the household life of people.
The filter screen is attracting more and more attention as a core and vulnerable component in a dust collection system of a dust collector. Most of the existing concerns are about the filtering effect and the reutilization rate of the filter screen, but the problem of dust collection efficiency is not developed too much. Although the filter screen that utilizes sea handkerchief to make can the repeated washing use at present, the cleaning time and the change time of knowing the filter screen that the user can't clear away, especially change the time, because sea handkerchief fine particle can block up the inside gas pocket of sea handkerchief when filtering the dust, if fail in time wash and change the efficiency and the effect of dust absorption can seriously descend, and long-time unclear and change the filter screen, the filter screen can breed the bacterium, cause the unable normal use dust catcher of user to clear up and influence user's living environment.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is desirable to provide a replacement reminding circuit for a filter screen of a vacuum cleaner and a vacuum cleaner.
The utility model provides a warning circuit is changed to dust catcher filter screen, the circuit includes:
the timer unit is used for recording the installation time of the filter screen and the working time of the dust collector after the filter screen is installed;
and the processing unit is connected with the timer unit and used for judging whether the working time and the installation time reach a set value after being superposed and outputting a warning signal after the working time and the installation time reach the set value.
In one embodiment, the filter screen replacement reminding circuit of the vacuum cleaner further comprises:
the first pressure sensor is arranged on the air outlet side of the filter screen and used for acquiring first pressure data of the air outlet side of the filter screen;
the processing unit is further used for judging whether the first pressure data exceeds a preset pressure threshold value or not and outputting the warning signal when the first pressure data exceeds the preset pressure threshold value.
In one embodiment, the filter screen replacement reminding circuit of the vacuum cleaner further comprises:
and the first signal amplifying unit is connected between the first pressure sensor and the processing unit and is used for amplifying the signal detected by the first pressure sensor.
In one embodiment, the filter screen replacement reminding circuit of the vacuum cleaner further comprises:
the second pressure sensor is arranged on the air inlet side of the filter screen and used for acquiring second pressure data of the air inlet side of the filter screen;
the processing unit is further configured to obtain a pressure data difference value between the first pressure data and the second pressure data, and output the warning signal if the pressure data difference value exceeds a preset pressure difference threshold value.
In one embodiment, the filter screen replacement reminding circuit of the vacuum cleaner further comprises:
and the second signal amplifying unit is connected between the second pressure sensor and the processing unit and is used for amplifying the signal detected by the second pressure sensor.
In one embodiment, the filter screen replacement reminding circuit of the vacuum cleaner further comprises:
the flow sensor is arranged on the air outlet side of the filter screen and used for acquiring air flow data of the air outlet side of the filter screen;
the processing unit is further used for judging whether the air flow data is lower than a preset flow threshold value or not and outputting the warning signal when the air flow data is lower than the preset flow threshold value.
In one embodiment, the filter screen replacement reminding circuit of the vacuum cleaner further comprises:
and the third signal amplification unit is connected between the flow sensor and the processing unit and is used for amplifying the signal detected by the flow sensor.
In one embodiment, the filter screen replacement reminding circuit of the vacuum cleaner further comprises:
and the display unit is connected with the processing unit and used for receiving and responding the warning signal so as to display the preset filter screen replacement reminding content.
Based on the same inventive concept, the present application also provides a dust collector, including:
a cleaner body;
the filter screen is arranged inside the dust collector body; and
the replacement reminding circuit for the filter screen of the dust collector is described.
In one embodiment, the vacuum cleaner further comprises:
and the communication module is used for connecting the processing unit with a terminal device in a communication manner and sending the warning signal to the terminal device.
Above-mentioned warning circuit and dust catcher are changed to dust catcher filter screen, operating time through installation time to the dust catcher filter screen and behind the dust catcher installation filter screen is taken notes the back stack, and time after will superposing and the settlement time threshold value of predetermineeing carry out the comparison, and remind the user to change the filter screen when surpassing the time threshold value of predetermineeing, can realize more nimble filter screen change and remind, prevent because the filter capacity of filter screen descends, cause the damage to the dust catcher, and can also prevent to change after the filter screen long-time not use, the wrong suggestion user that probably produces changes the operation of filter screen, and then promote user's use experience.
Drawings
FIG. 1 is a schematic diagram of a replacement reminding circuit for a filter screen of a vacuum cleaner in an embodiment;
FIG. 2 is a schematic diagram of a replacement reminding circuit for a filter screen of a vacuum cleaner in another embodiment;
FIG. 3 is a schematic view of a portion of a vacuum cleaner in an embodiment;
fig. 4 is a schematic partial schematic diagram of a filter screen replacement reminding circuit of a vacuum cleaner in an embodiment.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, 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 invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Please refer to fig. 3, which is a partial schematic structural diagram of a vacuum cleaner in an embodiment; the conventional cleaner may mainly include a cleaner body (not shown in fig. 3), a filter 10 and a motor 20; one side of the filter screen 10 close to the motor 20 is an air outlet side, and the other side is an air inlet side; the working principle of the conventional dust collector is that the motor 20 runs at a high speed, and the fan blade group on the motor 20 is driven to rotate so as to generate partial vacuum inside the dust collector, so that the pressure difference between the inside and the outside is generated; under the action of the pressure difference, dust, dirt and the like which are beaten up by a dust raising device (a suction nozzle or a brush seat) are sucked into the dust barrel, after dust-containing air is separated and purified by a multi-stage air-dust separating system arranged in the dust barrel, clean air is discharged from an air outlet through a motor, and the motor is cooled at the same time, so that the aim of dust removal and cleaning is fulfilled.
But present gas-dust piece-rate system can not hundred percent carry out the separation evolution to dirty air of dirt, cause the damage to the motor after getting into the motor for preventing not containing a small amount of dirt, generally can install a removable filter screen of trading in the air intake department of motor, the filter screen that utilizes sea handkerchief to make at present can used by repeated cleaning, but the cleaning time and the change time of knowing the filter screen that the user can't clear away, especially change time, because sea handkerchief fine particle can block up the inside gas pocket of sea handkerchief when filtering the dust, if can seriously descend with efficiency and the effect of changing the dust absorption in time fail to wash, and long-time unclear and change the filter screen, the filter screen can breed the bacterium, cause the unable normal use dust catcher of user to clear up and influence user's living environment.
Based on this, the present application wants to provide a technical solution capable of solving the above technical problems, which will be described in detail by the following embodiments.
Please refer to fig. 1 and fig. 3, which are a schematic structural diagram of a filter screen replacement reminding circuit of a vacuum cleaner and a schematic partial structural diagram of the vacuum cleaner in an embodiment, respectively. The filter screen replacement reminding circuit of the dust collector can comprise a timer unit 102 and a processing unit 104; the timer unit 102 is mainly used for recording the installation time of the filter screen 10 and the working time of the vacuum cleaner after the filter screen 10 is installed; the installation time of the filter screen 10 is mainly the time when a user or a manufacturer installs the filter screen 10 on the dust collector, and the working time is mainly based on the time from the start-up to the shutdown of the dust collector; the processing unit 104 is connected to the timer unit 102, and the processing unit 104 is mainly configured to determine whether a set value is reached after the working time and the installation time are overlapped, and output a warning signal after the set value is reached; the processing unit 104 may be a microprocessor, and the setting value may be written into the processing unit 104 in advance, or may be written into the timer unit 102 in advance; the warning signal can be a warning signal based on vision or a warning signal based on hearing, for example, "please change the filter screen" is played, and the warning signal can also be a warning signal with vision and hearing at the same time.
Furthermore, in order to make the filter screen replacement reminding of the dust collector more accurate, please refer to fig. 2 and fig. 3, the filter screen replacement reminding circuit of the dust collector of the present application is further provided with a first pressure sensor 202, which is disposed on the air outlet side of the filter screen 10 and is used for acquiring first pressure data of the air outlet side of the filter screen 10, specifically, in the working process of the motor 20 of the dust collector, if the filter screen 10 is unobstructed and has no blockage, the pressure data of the air outlet side of the filter screen 10 should be within a normal numerical range, and if the filter screen 10 is blocked, the air pumped through the motor 20 cannot smoothly pass through the filter screen 10, so that the pressure of the air outlet side of the filter screen 10 is obviously different from the normal pressure data; the processing unit 104 determines whether the first pressure data exceeds a preset pressure threshold according to the first pressure data acquired by the first pressure sensor 202, and outputs the warning signal when the first pressure data exceeds the preset pressure threshold. The warning signal may be the same as the aforementioned warning signal, and may specifically be a visual and/or audible warning signal. Preferably, the electrical signal detected by the pressure sensor is weak, and in order to make the measured pressure data more accurate, a first signal amplifying unit 204 is further disposed between the first pressure sensor 202 and the processing unit 104, and the first signal amplifying unit 204 is mainly used for amplifying the signal detected by the first pressure sensor 202.
In one embodiment, please continue to refer to fig. 2 and 3, based on the foregoing description, during the operation of the motor 20 of the vacuum cleaner, if the filter screen 10 is unobstructed and has no blockage, the pressure data of the air outlet side of the filter screen 10 should be within a normal range, if the filter screen 10 is blocked, the air pumped by the motor 20 cannot smoothly pass through the filter screen 10, so that the pressure of the air outlet side of the filter screen 10 may be obviously different from the normal pressure data, and accordingly, the difference (pressure difference) between the pressure data of the two sides of the filter screen 10 may fluctuate, the present application further provides a second pressure sensor 302 on the air inlet side of the filter screen 10 for obtaining a second pressure data of the air inlet side of the filter screen 10; the processing unit 104 is further configured to obtain a pressure data difference between the first pressure data and the second pressure data, and output the warning signal if the pressure data difference exceeds a preset pressure difference threshold. This may also be used to supplement the determination that the filter 10 is clogged and needs to be replaced. Further, in the present application, a second signal amplifying unit 304 is further disposed between the second pressure sensor 302 and the processing unit 104, and the second signal amplifying unit 304 is mainly used for amplifying the signal detected by the second pressure sensor 302. It is understood that the first pressure sensor 202 and the second pressure sensor 302 of the present application may be the same, and the first signal amplification unit 204 and the second signal amplification unit 304 may also be the same.
Further, please refer to fig. 4, which is a schematic diagram illustrating a schematic diagram of a part of a replacement reminding circuit for a filter screen of a vacuum cleaner according to an embodiment. A part of the circuit shown in fig. 4 is mainly a circuit schematic diagram for detecting whether the filter screen is blocked, and the part mainly includes triodes Q1 and Q2, resistors R1, R2, R3, R4, R5, R6, R7, capacitors C1, C2, C3, C4, C5, C6, an inductor L1, a pressure sensor S1, and an operational amplifier U1; the resonant frequency of the pressure sensor S1 is F0, at which point the pressure sensor S1 has the highest voltage; the port 2 of the transistor Q1 and the port 2 of the transistor Q2 both receive a PWM square wave from the processing unit 104, and after the PWM square wave passes through the inductor L1 and the capacitor C2, one path of the PWM square wave passes through the pressure sensor S1 and the resistor R6 and is input to the port 2 of the operational amplifier U1, and the other path of the PWM square wave passes through the resistor R5 and is input to the port 3 of the operational amplifier U1, and is amplified by the operational amplifier U1 and then is output to the processing unit 104 (MCU). Taking the first pressure sensor 202 arranged at the air outlet side as an example, when the dust collector is started and the filter screen is brand new, the air permeability of the filter screen is best at the moment, the air pressure at the side where the corresponding pressure sensor S1 is located is the largest, the pressure sensor S1 generates deformation, the S1 generating the deformation does not reach the resonance point F0 of the filter screen, and the voltage detected by the processing unit 104(MCU) is at the lowest voltage according to a circuit schematic diagram; when the filter screen is blocked, the deformation of the pressure sensor S1 is reduced until the resonant frequency F0 of the pressure sensor S1 is gradually reached, the voltage correspondingly input to the processing unit 104(MCU) is gradually increased, and the processing unit 104(MCU) can determine the usage level of the filter screen by detecting the output voltage of the operational amplifier U1.
In one embodiment, please continue to refer to fig. 2 and 3. The filter screen replacement reminding circuit of the dust collector is characterized in that a flow sensor 402 is further arranged on the air outlet side of the filter screen 10, and the flow sensor 402 is mainly used for acquiring air flow data of the air outlet side of the filter screen 10; in the working process of the motor 20 of the dust collector, if the filter screen 10 is smooth and free of blockage, air can pass through the filter screen 10 more smoothly, the flow data of the air is larger, and if the filter screen 10 is blocked, the air pumped in by the motor 20 can not pass through the filter screen 10 smoothly, so that the air flow of the air outlet side of the filter screen 10 is reduced; at this time, the processing unit 104 may determine whether the filter screen 10 needs to be replaced by determining a flow change of air passing through the filter screen 10, specifically, by determining whether the air flow data obtained by the flow sensor 402 is lower than a preset flow threshold, and outputting the warning signal when the air flow data is lower than the preset flow threshold; it will be appreciated that the warning signal may be the same as the warning signal described above, and may in particular be a visual and/or audible based warning signal. Further, in the present application, a third signal amplifying unit 404 is further disposed between the flow sensor 402 and the processing unit 104, and is mainly used for amplifying the signal detected by the flow sensor 402. It is understood that the third signal amplification unit 404 may be the same as the first signal amplification unit 204 and the second signal amplification unit 304 described above.
In an embodiment, please continue to refer to fig. 2, the filter screen replacement reminding circuit of the vacuum cleaner of the present application further includes a display unit 106, wherein the display unit 106 is connected to the processing unit 104, and is configured to receive and respond to the warning signal to display a preset filter screen replacement reminding content. Illustratively, the filter screen replacement reminder is "please replace the cleaner filter screen". The display unit 106 may be an LED display or a liquid crystal display.
To sum up, the utility model provides a circuit is reminded in dust catcher filter screen change records the back stack through the installation time to the dust catcher filter screen and the operating time behind the dust catcher installation filter screen, and time after will superposing and the predetermined time threshold value carry out the comparison, and remind the user to change the filter screen when surpassing the predetermined time threshold value, can realize more nimble filter screen change and remind, prevent because the filter capacity of filter screen descends, cause the damage to the dust catcher, and can also prevent to appear changing the filter screen after long-time not using, the wrong suggestion user that probably produces changes the operation of filter screen, and then promote user's use and experience.
Based on the same inventive concept, the present application further provides a vacuum cleaner, please refer to fig. 3, which has the vacuum cleaner filter screen replacement reminding circuit, in addition to the vacuum cleaner body, the filter screen 10, the motor 20, and the like of the conventional vacuum cleaner. It can be understood that, since the vacuum cleaner of the present application has the aforementioned filter screen replacement reminding circuit, the portions thereof having the same beneficial effects as the filter screen replacement reminding circuit can refer to the aforementioned description, and are not further described herein.
Further, in order to avoid that the user does not hear or see the warning information sent by the dust collector, the dust collector of the present application is further provided with a communication module (not shown in the figure), which is mainly used for realizing the communication connection between the microprocessor 104 in the filter screen replacement reminding circuit of the dust collector and a terminal device (not shown in the figure), wherein the terminal device includes but is not limited to a mobile phone, a tablet, a computer, a notebook computer and other devices; the communication module is configured to send the warning signal sent by the processing unit 104 to the terminal device, so as to notify the user of a voice or display information corresponding to the warning signal through the terminal device.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a warning circuit is changed to dust catcher filter screen which characterized in that, the circuit includes:
the timer unit is used for recording the installation time of the filter screen and the working time of the dust collector after the filter screen is installed;
and the processing unit is connected with the timer unit and used for judging whether the working time and the installation time reach a set value after being superposed and outputting a warning signal after the working time and the installation time reach the set value.
2. The filter screen replacement reminding circuit of a vacuum cleaner according to claim 1, further comprising:
the first pressure sensor is arranged on the air outlet side of the filter screen and used for acquiring first pressure data of the air outlet side of the filter screen;
the processing unit is further used for judging whether the first pressure data exceeds a preset pressure threshold value or not and outputting the warning signal when the first pressure data exceeds the preset pressure threshold value.
3. The filter screen replacement reminding circuit of a vacuum cleaner according to claim 2, further comprising:
and the first signal amplifying unit is connected between the first pressure sensor and the processing unit and is used for amplifying the signal detected by the first pressure sensor.
4. The filter screen replacement reminding circuit of a vacuum cleaner according to claim 2, further comprising:
the second pressure sensor is arranged on the air inlet side of the filter screen and used for acquiring second pressure data of the air inlet side of the filter screen;
the processing unit is further configured to obtain a pressure data difference value between the first pressure data and the second pressure data, and output the warning signal if the pressure data difference value exceeds a preset pressure difference threshold value.
5. The filter screen replacement reminding circuit of a vacuum cleaner according to claim 4, further comprising:
and the second signal amplifying unit is connected between the second pressure sensor and the processing unit and is used for amplifying the signal detected by the second pressure sensor.
6. The filter screen replacement reminding circuit of a vacuum cleaner according to claim 2, further comprising:
the flow sensor is arranged on the air outlet side of the filter screen and used for acquiring air flow data of the air outlet side of the filter screen;
the processing unit is further used for judging whether the air flow data is lower than a preset flow threshold value or not and outputting the warning signal when the air flow data is lower than the preset flow threshold value.
7. The filter screen replacement reminding circuit of a vacuum cleaner according to claim 6, further comprising:
and the third signal amplification unit is connected between the flow sensor and the processing unit and is used for amplifying the signal detected by the flow sensor.
8. The filter screen replacement reminding circuit of a vacuum cleaner according to claim 1, further comprising:
and the display unit is connected with the processing unit and used for receiving and responding the warning signal so as to display the preset filter screen replacement reminding content.
9. A vacuum cleaner, characterized in that the vacuum cleaner comprises:
a cleaner body;
the filter screen is arranged inside the dust collector body; and
the replacement reminding circuit for a filter screen of a vacuum cleaner as claimed in any one of claims 1 to 8.
10. The vacuum cleaner of claim 9, further comprising:
and the communication module is used for connecting the processing unit with a terminal device in a communication manner and sending the warning signal to the terminal device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921469598.3U CN211324742U (en) | 2019-09-05 | 2019-09-05 | Dust collector filter screen replacement reminding circuit and dust collector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921469598.3U CN211324742U (en) | 2019-09-05 | 2019-09-05 | Dust collector filter screen replacement reminding circuit and dust collector |
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| CN211324742U true CN211324742U (en) | 2020-08-25 |
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| CN201921469598.3U Active CN211324742U (en) | 2019-09-05 | 2019-09-05 | Dust collector filter screen replacement reminding circuit and dust collector |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110811415A (en) * | 2019-10-31 | 2020-02-21 | 深圳市小思科技有限公司 | Vacuum cleaner |
| CN113019021A (en) * | 2021-02-26 | 2021-06-25 | 追创科技(苏州)有限公司 | Cleaning device and filter element blockage detection method of cleaning device |
| CN114176455A (en) * | 2021-12-22 | 2022-03-15 | 陈思盛 | Intelligent dust collection device with classification function |
| CN114451832A (en) * | 2021-12-29 | 2022-05-10 | 深圳华芯信息技术股份有限公司 | Method, system, device and medium for managing consumables of automatic cleaning device |
-
2019
- 2019-09-05 CN CN201921469598.3U patent/CN211324742U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110811415A (en) * | 2019-10-31 | 2020-02-21 | 深圳市小思科技有限公司 | Vacuum cleaner |
| CN113019021A (en) * | 2021-02-26 | 2021-06-25 | 追创科技(苏州)有限公司 | Cleaning device and filter element blockage detection method of cleaning device |
| CN114176455A (en) * | 2021-12-22 | 2022-03-15 | 陈思盛 | Intelligent dust collection device with classification function |
| CN114451832A (en) * | 2021-12-29 | 2022-05-10 | 深圳华芯信息技术股份有限公司 | Method, system, device and medium for managing consumables of automatic cleaning device |
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