CN104970739A - Audio frequency induction vacuum cleaner controller - Google Patents
Audio frequency induction vacuum cleaner controller Download PDFInfo
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- CN104970739A CN104970739A CN201510464259.6A CN201510464259A CN104970739A CN 104970739 A CN104970739 A CN 104970739A CN 201510464259 A CN201510464259 A CN 201510464259A CN 104970739 A CN104970739 A CN 104970739A
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- circuit
- microcontroller
- power supply
- frequency induction
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Abstract
The present invention discloses an audio frequency induction vacuum cleaner controller. The audio frequency induction vacuum cleaner controller comprises a controller main body; and the controller main body comprises a power conversion circuit for converting an AC signal to a DC signal, a motor control circuit for controlling normal operation of a motor, a microcontroller serving as a control center, a display and button module providing interface operation, a power sampling module capable of acquiring electrical parameters, and a microphone circuit for acquiring audio frequency information. According to the audio frequency induction vacuum cleaner controller, the microphone circuit acquires the audio frequency information between a motor suction opening and a dust bag, and whether the vacuum cleaner is stalled and the dust bag is full or not can be determined through software analysis of the microcontroller; persons are reminded to process timely through display of the display and button module; and the effect of power self-learning is achieved through cooperation of the power sampling module and the microcontroller, so that the technical problem of compatibility of different access power sources is solved, and the vacuum cleaner controller can be used more safely, conveniently and intelligently.
Description
Technical field
The present invention relates to dust collector controller field, particularly relate to a kind of frequency induction dust collector controller.
Background technology
When people choose dust catcher used in everyday, three indexs are often adopted to judge the quality of dust catcher, one is suction, two is anti-blockage function, three is degree easy to clean, and for often using the user of dust catcher, most headache be exactly the problem that dust catcher is not inhaled, namely dust catcher tracheae clogging
We know that the use principle of dust catcher is, motor runs to cause and form depression in dust bag case.According to air-flow principle, define inside and outside draught head, by utilizing the effect of this inner and outer air pressure difference, dust and other impurities is entered dust bag by long pipe, bend pipe, flexible pipe, hose coupling successively, dust and other impurities is trapped in dust bag, and air, after filter disc purification, is discharged by body afterbody, because air pressure is heated through motor, so the air pressure that dust catcher afterbody is discharged is hot.If in dust bag, ash is dust-full, and does not clear up in time, dust catcher suction will obviously decline; Of long duration will to result in blockage, there is no the situation of suction, because suction weakens, easily in the knee in dust suction corner, bend pipe and hose coupling place cause blocking.Meanwhile, if can not get abundant heat radiation when motor operates in this case, longevity of service, will cause the damage of motor, so just not just the interior ash of the simplest dust bag is dust-full has cleared up in time.
For this phenomenon, the air pressure sensing vacuum cleaner that Authorization Notice No. CN100425191 invents, utilize the intelligence control system of baroceptor and single-chip microcomputer control technology composition, thus the automatic adjustment of power of motor can be controlled, reach energy-efficient object, this invention is provided with dust-full alarm and protection function, reminding user clean dust bag is in time carried out by LED, but the main body of this invention is dust catcher, limit its range of application, if and dust collector controller is arranged on the dust catcher of country variant, because the electric voltage frequency of access also exists corresponding difference, can have a great impact the normal work of dust catcher, just at last in China, due to the existence of electricity supply and demand contradiction, the fluctuation of utility grid voltage is larger, the requirement of high precision load can not be met, various electronic equipment is all had to increase zero cross detection circuit, thus realize the effect of pressure regulation.
Simultaneously, dust catcher in use body sound is all larger, when dust catcher blocks or dust bag is full, disagrees when the body sound that dust catcher sends and normal work, according to the difference of body sound, we can judge whether dust catcher is out of order, thus timely reminding user handling failure.
Summary of the invention
The present invention provides a kind of frequency induction dust collector controller for solving the problem, the audio-frequency information between motor inlet scoop and dust bag is gathered by microphone circuit, thus by the software analysis on microcontroller, judge dust catcher whether stall and dust bag whether full; Shown by display and key-press module, process in time to remind people; By the cooperation of power supply sampling module and microcontroller, reach the effect of power supply self study, thus play the technical problem of compatible different access power supply, this dust collector controller is used at country variant, can zero cross detection circuit be replaced simultaneously, complete voltage regulation result.
For achieving the above object, reach above-mentioned effect, the present invention is achieved through the following technical solutions:
A kind of frequency induction dust collector controller, comprise controller body, described controller body comprise AC signal is converted to direct current signal power-switching circuit, control circuit for controlling motor that motor runs well, as control centre microcontroller, the display of interface operation and key-press module are provided, the power supply sampling module of electrical quantity can be gathered and are used for gathering the microphone circuit of audio-frequency information, described microcontroller and power-switching circuit, power supply sampling module, microphone circuit, display and key-press module, circuit for controlling motor are connected.
Further, described microcontroller is built-in with A/D modular converter and I/O circuit, described power supply sampling module, microphone circuit are connected with microcontroller by A/D mouth, and described display and key-press module, circuit for controlling motor pass through I/O mouth and be connected with microcontroller.
Further, described microphone circuit comprises microphone, described microphone gathers the audio-frequency information between motor inlet scoop and dust bag, and the audio-frequency information collected is passed to the built-in A/D modular converter of microcontroller by A/D oral instructions, digital information is converted to by A/D modular converter, processed by the software code in microcontroller, thus judge whether dust catcher whether fill by stall and dust bag.
Further, described power supply sampling module comprises sample circuit, described sample circuit collects the information of access power supply, the built-in A/D module of microcontroller is passed to by A/D oral instructions, a series of digital information is converted to by the timing of A/D module, calculated every electrical quantity of access power supply by software algorithm in microcontroller, its electrical quantity includes but not limited to voltage, cycle, current phase place, power supply zero-acrross ing moment, and these electrical quantitys are supplied to follow-up software control and computing uses.
Further, described sample circuit is provided with rectification circuit, described rectification circuit is made up of silicon rectifier diode, and described rectification circuit is half-wave rectifying circuit or full-wave rectifying circuit or bridge rectifier.
Further, the button on described display and key-press module and Diode series, be connected with I/O mouth by wire, for inputting user instruction to dust collector controller; Described display and key-press module adopt LED display, for showing the working of dust catcher.
The invention has the beneficial effects as follows:
A kind of frequency induction dust collector controller, gathers the audio-frequency information between motor inlet scoop and dust bag by microphone circuit, thus by the software analysis on microcontroller, judge dust catcher whether stall and dust bag whether full; Shown by display and key-press module, to remind people to process in time, indirectly serve anticlogging effect, extend the service life of motor; By the cooperation of power supply sampling module and microcontroller, reach the effect of power supply self study, thus the compatibility technical problem of different electrical power index, this dust collector controller is used in multiple country simultaneously, zero cross detection circuit can be replaced simultaneously, complete self-voltage regulation result, in global design, the dust catcher of this controller of assembling is made to have powerful anti-blockage function and the scope of application widely, and ensure that use safety and the clean-up performance of dust catcher, meet the intelligentized development trend of modern society, thus be better user's service.
Above-mentioned explanation is only the general introduction of technical solution of the present invention, in order to technological means of the present invention can be better understood, and can be implemented according to the content of description, coordinate accompanying drawing to be described in detail as follows with preferred embodiment of the present invention below, the specific embodiment of the present invention provides in detail by following examples and accompanying drawing thereof.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the embodiment schematic diagram of a kind of frequency induction dust collector controller that the present invention relates to;
Fig. 2 is a kind of embodiment schematic diagram of the power-switching circuit that the present invention relates to;
Fig. 3 is the another kind of embodiment schematic diagram of the power-switching circuit that the present invention relates to;
Fig. 4 is a kind of embodiment schematic diagram that the circuit for controlling motor that the present invention relates to is connected with motor of dust collector;
Fig. 5 is a kind of embodiment schematic diagram of display and the key-press module that the present invention relates to;
Fig. 6 is a kind of embodiment schematic diagram of the power supply sampling module that the present invention relates to;
Fig. 7 is a kind of embodiment schematic diagram of the microphone circuit that the present invention relates to;
Fig. 8 is the waveform schematic diagram of alternating current after rectification circuit that the present invention relates to.
In FIG, power-switching circuit 1, circuit for controlling motor 2, microcontroller 3, display and key-press module 4, power supply sampling module 5 and microphone circuit 6.
In the circuit diagram of Fig. 2-Fig. 7, L is live wire, and N is zero line, and T is transformer, D
2-D
6for diode, D
1with D
7for rectifier bridge, VT
1-VT
5for the triode of NPN type, ZD is Zener diode, LED
1-LED
6for light emitting diode, C
1-C
8for electric capacity, wherein C
1and C
4for polar capacitor, V
dDfor the operating voltage of chip, V
cCfor the power supply of circuit, V
oUTfor the voltage of simulation exports, R
1-R
13for resistance, I/O
1-I/O
7for the I/O interface of microcontroller, A/D
1-A/D
2for the A/D interface of microcontroller, SW
1-SW
3for button, MIC is microphone, and TR is controllable silicon.
Detailed description of the invention
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
As Figure 1-Figure 8, a kind of frequency induction dust collector controller, comprise controller body, described controller body comprises the power-switching circuit 1 AC signal being converted to direct current signal, control the circuit for controlling motor 2 that motor runs well, as the microcontroller 3 of control centre, display and the key-press module 4 of interface operation are provided, the power supply sampling module 5 of electrical quantity can be gathered and be used for gathering the microphone circuit 6 of audio-frequency information, described microcontroller 3 and power-switching circuit 1, power supply sampling module 5, microphone circuit 6, display and key-press module 4, circuit for controlling motor 2 connects.
Further, described microcontroller 3 is built-in with A/D modular converter and I/O circuit, described power supply sampling module 5, microphone circuit 6 are connected with microcontroller 3 by A/D mouth, and described display and key-press module 4, circuit for controlling motor 2 are connected with microcontroller 3 by I/O mouth.
Further, described microphone circuit 6 comprises microphone, described microphone gathers the audio-frequency information between motor inlet scoop and dust bag, and the audio-frequency information collected is passed to the built-in A/D modular converter of microcontroller 3 by A/D oral instructions, digital information is converted to by A/D modular converter, processed by the software code in microcontroller 3, thus judge whether dust catcher whether fill by stall and dust bag.
Further, described power supply sampling module 5 comprises sample circuit, described sample circuit collects the information of access power supply, the built-in A/D module of microcontroller 3 is passed to by A/D oral instructions, a series of digital information is converted to by the timing of A/D module, calculated every electrical quantity of access power supply by software algorithm in microcontroller 3, its electrical quantity includes but not limited to voltage, cycle, current phase place, power supply zero-acrross ing moment, and these electrical quantitys are supplied to follow-up software control and computing uses.
Further, described sample circuit is provided with rectification circuit, described rectification circuit is made up of silicon rectifier diode, and described rectification circuit is half-wave rectifying circuit or full-wave rectifying circuit or bridge rectifier.
Further, the button on described display and key-press module 4 and Diode series, be connected with I/O mouth by wire, for inputting user instruction to dust collector controller; Described display and key-press module 4 adopt LED to show, for showing the working of dust catcher.
Specific embodiment
In the middle of the integrated circuit structure chart of Fig. 1, after power-switching circuit carries out Power convert, stable output voltage is provided to supply microcontroller work; The information of the access of power supply sampling module collection simultaneously power supply, every electrical quantity of access power supply is calculated by the A/D conversion in microcontroller and software algorithm, electrical quantity includes but not limited to voltage, cycle, current phase place, power supply zero-acrross ing moment, and these electrical quantitys are supplied to follow-up software control and computing uses; Microphone gathers the audio-frequency information between motor inlet scoop and dust bag, processed by the A/D conversion in microcontroller and software code, thus judge dust catcher whether stall and dust bag whether fill, and bearing reaction to be shown to the LED in display and key-press module; Set by the button on display and key-press module, carry out the control to circuit for controlling motor according to the software code of burning on microcontroller, thus control the duty of motor.
Fig. 2 is a kind of preferred embodiment of power-switching circuit, receive 220V alternating current from zero line N and live wire L, carry out the lifting to voltage by transformer T, polarity of voltage is now upper just lower negative, then the unidirectional general character of the electric current of diode D is utilized, with four diode composition rectifier bridge D
1, make alternating current become unidirectional pulsating volage, utilize electric capacity every the characteristic of straight-through friendship, by electric capacity C
1in parallel with rectifier bridge, thus the AC signal in filtering pulsating volage, make the DC voltage that voltage becomes smoother, i.e. the supply voltage V of circuit
cC.
Fig. 3 is the another kind of embodiment of power-switching circuit, utilizes the capacitive reactance current limliting of electric capacity, by electric capacity C
3with resistance R
1be connected in series to after parallel connection on live wire, pass through D
2and D
3the unidirectional half-wave rectifying circuit of composition, makes alternating current become unidirectional pulsating volage, carries out voltage stabilizing, pass through C by Zener diode ZD
4, C
5carry out filtering, make the DC voltage that voltage becomes smoother, be i.e. the supply voltage V of circuit
cC.
Fig. 4 is a kind of preferred embodiment that circuit for controlling motor is connected with motor of dust collector, by the I/O of microcontroller
1the phase-shifting trigger signal that pin exports, through resistance R
2, drive triode VT
1b-E knot, make driving triode VT
1saturation conduction, for bidirectional triode thyristor TR provides conducting trigger current, thus controls motor of dust collector driving.
Fig. 5 is a kind of preferred embodiment of display and key-press module, R
3-R
7as current-limiting resistance, pass through I/O
2-I/O
7mouth is connected with microcontroller, R
6and VT
2as LED
1and LED
2drive circuit, pass through SW
1button controls, simultaneously SW
1connect a diode D
4, prevent SW
1when pressing, interacting between I/O, its LED
3-LED
6, SW
2, SW
3operation principle with reference to LED
1, LED
2, SW
1.
Fig. 6 is a kind of preferred embodiment of power supply sampling module, passes through D
7carry out rectification, voltage source is through R
9, R
10carry out data sampling, optionally at R
10a upper electric capacity C in parallel
6, make R
10on voltage waveform compare elimination High-frequency Interference, sampled data passes through A/D
1oral instructions are passed to A/D modular converter, convert the analog signal collected to data signal by A/D modular converter, and the software algorithm of data signal in microcontroller calculates every electrical quantity of access power supply, thus carries out self-control according to electrical quantity.
Fig. 7 is a kind of preferred embodiment of microphone circuit, and microphone MIC gathers the audio-frequency information between motor inlet scoop and dust bag, and the audio-frequency information collected is passed through A/D
2oral instructions are passed to the built-in A/D modular converter of microcontroller, convert digital information to, processed by the software code in microcontroller 3 by A/D modular converter, thus judge dust catcher whether stall and dust bag whether fill, resistance R
11be responsible for providing operating voltage, R to microphone MIC
12with R
13be responsible for triode VT
5there is provided bias voltage, electric capacity C
7be responsible for the signal coupling of microphone MIC to triode VT
5to amplify, the signal after final amplification is by electric capacity C
8a/D is sent back to after coupling
2mouthful.
Fig. 8 is the waveform schematic diagram of alternating current after rectification circuit, namely the polarity of voltage of alternating current is upper just lower negative originally, shown in the upper figure namely in Fig. 8, adopts the single phase bridge type rectifier circu in preferred embodiment, thus obtain a unidirectional pulsating volage, shown in the figure below namely in Fig. 8.
Shown in composition graphs 6 and Fig. 8, alternating current, after rectification circuit, becomes unidirectional pulsating volage, and we take sinusoidal ac as object, its sinusoidal quantity U
0=U
msin (ω t+ ψ)=U
msin (2 π f*t+ψ)=U
m(wherein ω is angular frequency to sin (2 π/T*t+ψ), and ψ is initial phase, U
mfor voltage peak, f is supply frequency, and T is the cycle), repeating rule and can draw cycle T according to data, thus according to f=1/T, ω=2 π f, draw supply frequency f and angular frequency, can U be calculated by carrying out root mean square calculation to the data in the cycle
have, and obtain voltage peak U
m, as t=0, U
0=U
msin ψ, contrasting voltage in other cycles is U
0time phase place, thus draw initial phase ψ, and according to a large amount of data acquisitions with further analyze, thus draw every electrical quantity of access power supply.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (6)
1. a frequency induction dust collector controller, comprise controller body, it is characterized in that: described controller body comprises the power-switching circuit (1) AC signal being converted to direct current signal, control the circuit for controlling motor (2) that motor runs well, as the microcontroller (3) of control centre, display and the key-press module (4) of interface operation are provided, the power supply sampling module (5) of electrical quantity can be gathered and be used for gathering the microphone circuit (6) of audio-frequency information, described microcontroller (3) and power-switching circuit (1), power supply sampling module (5), microphone circuit (6), display and key-press module (4), circuit for controlling motor (2) connects.
2. a kind of frequency induction dust collector controller according to claim 1, it is characterized in that: described microcontroller (3) is built-in with A/D modular converter and I/O circuit, described power supply sampling module (5), microphone circuit (6) are connected with microcontroller (3) by A/D mouth, and described display and key-press module (4), circuit for controlling motor (2) are connected with microcontroller (3) by I/O mouth.
3. a kind of frequency induction dust collector controller according to claim 1, it is characterized in that: described microphone circuit (6) comprises microphone, described microphone gathers the audio-frequency information between motor inlet scoop and dust bag, and the audio-frequency information collected is passed to the built-in A/D modular converter of microcontroller (3) by A/D oral instructions, digital information is converted to by A/D modular converter, processed by the software code in microcontroller (3), thus judge whether dust catcher whether fill by stall and dust bag.
4. a kind of frequency induction dust collector controller according to claim 1, it is characterized in that: described power supply sampling module (5) comprises sample circuit, described sample circuit collects the information of access power supply, the built-in A/D module of microcontroller (3) is passed to by A/D oral instructions, a series of digital information is converted to by the timing of A/D module, every electrical quantity of access power supply is calculated by microcontroller (3) interior software algorithm, its electrical quantity includes but not limited to voltage, cycle, current phase place, power supply zero-acrross ing moment, these electrical quantitys are supplied to follow-up software control and computing uses.
5. a kind of frequency induction dust collector controller according to claim 4, it is characterized in that: described sample circuit is provided with rectification circuit, described rectification circuit is made up of silicon rectifier diode, and described rectification circuit is half-wave rectifying circuit or full-wave rectifying circuit or bridge rectifier.
6. a kind of frequency induction dust collector controller according to claim 1, is characterized in that: the button on described display and key-press module (4) and Diode series, be connected with I/O mouth by wire, for inputting user instruction to dust collector controller; Described display and key-press module (4) adopt LED display, for showing the working of dust catcher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510464259.6A CN104970739A (en) | 2015-07-31 | 2015-07-31 | Audio frequency induction vacuum cleaner controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510464259.6A CN104970739A (en) | 2015-07-31 | 2015-07-31 | Audio frequency induction vacuum cleaner controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104970739A true CN104970739A (en) | 2015-10-14 |
Family
ID=54268117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510464259.6A Pending CN104970739A (en) | 2015-07-31 | 2015-07-31 | Audio frequency induction vacuum cleaner controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104970739A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111012247A (en) * | 2018-10-10 | 2020-04-17 | 惠州市蓝微电子有限公司 | Energy-saving control system and method for dust collector |
| CN111374591A (en) * | 2018-12-29 | 2020-07-07 | 惠州市蓝微电子有限公司 | Control system and method of dust collector |
| CN112034753A (en) * | 2020-08-19 | 2020-12-04 | 江苏美的清洁电器股份有限公司 | Dust collector control system and method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050183230A1 (en) * | 2004-01-30 | 2005-08-25 | Funai Electric Co., Ltd. | Self-propelling cleaner |
| CN201035433Y (en) * | 2007-02-06 | 2008-03-12 | 杭州钱江电气集团股份有限公司 | Energy bidirectional flowing voltage regulator |
| CN201453149U (en) * | 2009-06-30 | 2010-05-12 | 华东师范大学附属杨行中学 | Dust collector |
| WO2010117133A2 (en) * | 2009-04-10 | 2010-10-14 | Samsung Gwangju Electronics Co., Ltd. | Vacuum cleaner |
| CN201674273U (en) * | 2010-04-28 | 2010-12-15 | 施耐德万高（天津）电气设备有限公司 | Automatic transfer switch controller |
| CN204085768U (en) * | 2014-09-03 | 2015-01-07 | 苏州路之遥科技股份有限公司 | A kind of suction cleaner suction pick-up unit |
-
2015
- 2015-07-31 CN CN201510464259.6A patent/CN104970739A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050183230A1 (en) * | 2004-01-30 | 2005-08-25 | Funai Electric Co., Ltd. | Self-propelling cleaner |
| CN201035433Y (en) * | 2007-02-06 | 2008-03-12 | 杭州钱江电气集团股份有限公司 | Energy bidirectional flowing voltage regulator |
| WO2010117133A2 (en) * | 2009-04-10 | 2010-10-14 | Samsung Gwangju Electronics Co., Ltd. | Vacuum cleaner |
| WO2010117133A3 (en) * | 2009-04-10 | 2010-12-02 | Samsung Gwangju Electronics Co., Ltd. | Vacuum cleaner |
| CN201453149U (en) * | 2009-06-30 | 2010-05-12 | 华东师范大学附属杨行中学 | Dust collector |
| CN201674273U (en) * | 2010-04-28 | 2010-12-15 | 施耐德万高（天津）电气设备有限公司 | Automatic transfer switch controller |
| CN204085768U (en) * | 2014-09-03 | 2015-01-07 | 苏州路之遥科技股份有限公司 | A kind of suction cleaner suction pick-up unit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111012247A (en) * | 2018-10-10 | 2020-04-17 | 惠州市蓝微电子有限公司 | Energy-saving control system and method for dust collector |
| CN111374591A (en) * | 2018-12-29 | 2020-07-07 | 惠州市蓝微电子有限公司 | Control system and method of dust collector |
| CN112034753A (en) * | 2020-08-19 | 2020-12-04 | 江苏美的清洁电器股份有限公司 | Dust collector control system and method |
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Address after: Suzhou City, Jiangsu province 215153 city of science and technology of Suzhou high tech Zone Yandang Road No. 88 Applicant after: Suzhou LZY Technology Ltd. Address before: 215011 No. 55 Xiangyang Road, hi tech Zone, Jiangsu, Suzhou Applicant before: Suzhou LZY Technology Ltd. |
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Application publication date: 20151014 |
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