CN1907204A - Electric dust collector - Google Patents
Electric dust collector Download PDFInfo
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- CN1907204A CN1907204A CNA200610110165XA CN200610110165A CN1907204A CN 1907204 A CN1907204 A CN 1907204A CN A200610110165X A CNA200610110165X A CN A200610110165XA CN 200610110165 A CN200610110165 A CN 200610110165A CN 1907204 A CN1907204 A CN 1907204A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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Abstract
The invention provides a vacuum cleaner of a power line communication system capable of transmitting dust detecting information signals between a high-performance dust detecting means and a control means at a high speed and a high reliability. This vacuum cleaner superimposes enormous amount of dust detecting information signals detected by the high-performance dust detecting means on two power lines as a plurality of current values of current pulse signals, inversely converts the current pulse signals into the original dust detecting information signals by a signal conversion means constituted for a current sensor, and processes them by the control means in a body control means at a high speed.
Description
Technical field
The present invention relates to the technology of powering and communicating by letter with two electric wirings between main body control portion and the dust test section in the electronics vacuum cleaner main body that constitutes by microcomputer etc., relate in particular to the useful power line communication technology of electric dust collector that electric wiring is had the connecting portion that can freely load and unload with signal.
Background technology
The general survey of the electric dust collector of the existing communication function with this class power line communication technology of expression in Fig. 7, in addition, indication circuit structure in Fig. 8 illustrates this structure/work.
Electric dust collector main body 9 is built-in with the electric blowing machine 2 that produces attraction.Tube unit 1 can freely load and unload by connecting portion 11 electric dust collector main body 9.Operating portion 8, the part of holding when the person of being to use uses electric dust collector.Prolong pipe 15, connect between the inhaler for floor 46 and operating portion 8 that constitutes in the dust mode that can attract floor.The attraction that electric blowing machine 2 in the main body 9 is produced is swept the floor, place certainly via the air flow circuit of tube unit 1, prolongation pipe 15 and inhaler for floor 46 and is attracted dust.
In the air flow circuit of tube unit 1, possesses the dust test section, above-mentioned dust test section, by with optical axis relative dispose (omission details drawing) of light-emitting component (light emitting diode) 24 with photo detector (phototransistor) 25, the output (dust detection signal) of the phototransistor 25 that will be changed by shading light between above-mentioned optical axis because of dust by computing circuit 27 is amplified, and is transformed to data signal (dust detection information signal) by comparison circuit 28.Transistor 22 amplifies the power output of comparison circuit 28, outputs to two electric wirings that begin to lay from connecting portion 11 and voltage Vz (Zener voltage of Zener diode 21) is detected the information signal transmission as dust.Voltage adjuster (regulator) 23, the transformation of electrical energy that will be supplied with by the power circuit 4 of main body 9 in power circuit is consumable voltage in the dust test section.
No. four terminals of control part 5 (phase controlling IC), be transfused to the voltage Vi of connecting portion 11, if detect this dc voltage value Vz so that change the phase controlling amount in the mode that increases power supply from dust test section output dc voltage value Vz (when detecting dust), control part 5 (phase controlling IC) by the dust test section, if the current/voltage value (when not detecting dust by the dust test section) beyond dust test section output Vz, control part 5 (phase controlling IC) changes the phase controlling amount with minimizing to the mode of the power supply of motor 2.
But, at this in the past in the example, control part 5, be applied directly to phase controlling is set terminal with the phase controlling amount of IC mode with DC voltage Vz from the output of dust test section, change the phase controlling amount, but the detailed technical explanation that the form that this information number is handled is not called ' communication ' (for example, how phase control division receives dust detection information signal is carried out the signal processing, and change is to the phase controlling amount of electric blowing machine 2), in fact try to realize the communicator put down in writing in the Japanese Patent Application Laid-Open 2002-315703 communique, but, its result, if detect what of information content of information communication number for the dust of dust test section, this signal of unexposed reception and change the work and the structure of ' phase controlling IC ' of the phase controlling amount of electric blowing machine 2 then can not be worked smoothly.
Yet, house moss brings the relevant information of healthy baneful influence in recent years increases, requirement to electric dust collector is also more and more higher, promptly, electric dust collector not only detects the dust of floor and attracts with the attraction of regulation, also can realize the running control of sweeping effectively, perhaps realization high value-addedization or the high dust collecting performance controlization that can sweep anaphylactogen (allergen) etc. neatly also according to the kind or the pollution level of the place of sweeping floor.For the running control of the electric blowing machine (motor) that is set by dust measuring ability and its testing result, the also urgent above in the past high performance of realization that needs.Particularly, just expect that the high-speed processing technology that the high performance of dust measuring ability and the dust that for this reason increases detect information signal can not destroyed the guaranteeing and guarantee reliability and the invention that develops of operating position of original vacuum cleaner.
Summary of the invention
The present invention, it is a kind of that its purpose is to provide, and possesses between high-performance dust test section and control part to receive and dispatch the electric dust collector that dust detects the power line communication mode of information signal with high speed and high reliability.
Electric dust collector of the present invention has following structure.
The electric dust collector main body, it is built-in with the electric blowing machine and the main body control portion of control to the power supply of electric blowing machine that produces attraction; Flexible pipe or the dust introduction part that prolongs pipe etc., it can freely load and unload for the electric dust collector main body, and the formation electric blowing machine is used to attract to sweep at least a portion of air flow circuit of the dust at position; The dust test section, it is connected with main body control portion by two electric wiring portions near the dust introduction part and disposes, and the dust that can detect in the air flow circuit detects information signal by state as dust; Current transformation portion, it can detect a plurality of current signals that information signal is transformed to different current values respectively with a plurality of dust; And the signal transformation component, it is arranged in the main body control portion, a plurality of current signal contravariant can be changed to a plurality of dust and detect information signal.
At this, main body control portion, the power of carrying the dust test section to be consumed via two electric wiring portions, the dust test section, by current transformation portion, change the current value of two electric wiring portions, a plurality of dust are detected information signals be transformed to a plurality of current signals of different current values, and a plurality of current signals that will carry out conversion can send to main body control portion via two electric wiring portions.
Main body control portion, a plurality of current signals with the different current values that send over, come contravariant to be changed to a plurality of dust by the signal transformation component and detect information signal, resulting according to coming by the signal transformation component, detect information signals from a plurality of dust of dust test section, control is to the power supply of electric blowing machine.
These, with the DC voltage Vz of existing communicator receive and dispatch dust detect not disclosed in detail as yet in the technology of information, be used for the technology that high speed processing dust detects information signal, be attainable invention.
And, to detect information signal by the detected huge dust of high performance dust test section is superimposed upon on two power lines as the current pulse signal of a plurality of current values, also have, by the signal transformation component that constitutes in the current sensor mode above-mentioned current pulse signal contravariant is changed to dust and detects information signal (data signal) and carry out high speed processing to allow to calculate to wait by the microcomputer in the main body control portion.
By this structure, the present invention, in the electric dust collector that needs via the electrical connection section that can freely load and unload only to power with electrical signal communication with two electric wirings, in order to realize the control of high value-added and high function, and can be provided at transmit at a high speed and the high speed processing signal of telecommunication on the communication mode of required electric dust collector.Especially, can provide and the huge dust detection information of high-performance dust test section is carried out high speed processing and realize the electric dust collector of high performance control.
Description of drawings
Fig. 1 is the circuit structure diagram of the electric dust collector of embodiments of the present invention.
Fig. 2 is the sensing characteristics correcting circuit structure chart that the dust of the dust test section of embodiments of the present invention detects detecting means.
Fig. 3 is the dust detection signal handling part of embodiments of the present invention and the circuit structure diagram of current transformation portion.
Fig. 4 is the circuit structure diagram of the signal transformation component of embodiments of the present invention.
Fig. 5 is the skeleton diagram of electric dust collector that possesses the dust test section of embodiments of the present invention.
Fig. 6 A, Fig. 6 B and Fig. 6 C are that the dust of expression embodiments of the present invention detects the electric current (conveying) of information signal and the waveform key diagram of the summary that signal (reception) conversion is moved.
Fig. 7 is the skeleton diagram that possesses the electric dust collector of existing dust test section.
Fig. 8 is the circuit structure diagram of existing electric dust collector.
The specific embodiment
Embodiments of the present invention possess: electric dust collector, and it is built-in with the electric blowing machine and the main body control portion of control to the power supply of electric blowing machine that produces attraction; Flexible pipe or the dust introduction part that prolongs pipe etc., it can freely load and unload for the electric dust collector main body, and is configured at least a portion of air flow circuit that the dust at position is swept in electric blowing machine attraction; The dust test section, it is connected with main body control portion with two electric wiring portions near the dust introduction part and disposes, and the dust that detects in the air flow circuit can be used as dust detection information signal by state; Current transformation portion, it can detect a plurality of current signals that information signal is transformed to different current values respectively with a plurality of dust; The signal transformation component, it is arranged in the main body control portion, a plurality of current signal contravariant can be changed to a plurality of dust and detect information signal.
At this, main body control portion, the power of carrying the dust test sections to be consumed via two electric wiring portions.The dust test section, by current transformation portion, change the current value of two electric wiring portions, a plurality of dust are detected a plurality of current signals that information signal is transformed to different current values, and converted a plurality of current signals are transported to main body control portion via two electric wiring portions.This electric dust collector is made of following mode: main body control portion, a plurality of current signals with the different current values that transport, come contravariant to be changed to a plurality of dust by the signal transformation component and detect information signal, according to obtain from the signal transformation component, detect information signals from a plurality of dust of dust test section, control is to the power supply of electric blowing machine.This electric dust collector will come detected huge dust detection information signal to be superimposed upon on two power lines as a plurality of current signals (current pulse signal) by high performance dust test section, further above-mentioned current signal (current pulse signal) contravariant is changed to dust and detects information signal (data signal), carry out high speed processing thereby can calculate etc. by the microcomputer in main body control portion by the signal transformation component that constitutes in the current sense mode.
Also have, in other embodiment, above-mentioned current transformation portion can generate fundamental current value arbitrarily, current value greater than first current signal of fundamental current value, current value second current signal less than the fundamental current value.The dust test section detects information signal with a plurality of dust and outputs to wiring portion as first current signal and second current signal.The signal transformation component possesses the average portion of electric current, and the average portion of this electric current is detected first current signal of stipulated time and the mean value of second current signal as reference current value.The comparison of signal transformation component, detect poor less than first current signal of stipulated time and the current value between second current signal and the reference current value, and contravariant is changed to dust detection information signal, detects information signal so that can receive and dispatch dust between dust test section and main body control portion.Owing to the average portion of electric current comprises that the electronic circuit institute consumed current value of dust test section can be used as reference current value and detects and set, therefore, can not be subjected to constituting the dust test section electronic circuit load current etc. deviation influence and the current signal contravariant can be changed to dust and detect information signal.
Also have, other other embodiments on the basis of above-mentioned embodiment, with illuminating part and the radiative light accepting part that can accept illuminating part, roughly dispose its optical axis in air flow circuit relatively.The dust test section comes that by operational part dust is carried out signal by the variation of the light that is blocked in the optical axis and handles, and is transformed to electric impulse signal, generates the dust detection signal.Operational part possesses the different a plurality of operational parts of characteristics of signals, comes according to the size by dust and/or generates first current signal and second current signal by dust amount with this.Thus, generate electric impulse signal based on following rule, to allow to especially improve the signal treatment effeciency in the main body control portion, for example described rule is: that be attracted lentamente, negligible amounts, bigger dust, the electric impulse signal (first current signal) that the generation cycle is long, that be attracted fast, a fairly large number of, less dust, the electric impulse signal (second current signal) that the generation cycle is short.
Also have, the embodiment that other are other, above-mentioned current transformation portion possesses exclusive portion, this exclusive portion, for the generation of first current signal and second current signal, preferred output option one side's current signal.Thus, poor for the polarity between first current signal and second current signal, need generate simultaneously under the situation of two signals, can set priority, the recovery of the disappearance information in the dust detection information signal that can be applied to generate carrying out inverse transformation by receiver side is handled etc.
In addition, the embodiment that other are other on the basis of each above-mentioned embodiment, also possesses display part, detect information signal according to dust and revise demonstration information in the control display part, therefore can show the information of the quantity of detected dust or size etc.
The benchmark accompanying drawing illustrates in greater detail relevant embodiments of the present invention.In addition, the present invention is not limited to this embodiment.
In Fig. 1 and Fig. 5, electric dust collector main body 9 is built-in with: the electric blowing machine 2 that produces attraction; Supply with the bidirectional thyristor 3 of driving power to electric blowing machine 2; Supply with the power circuit 4 of direct current (voltage Vo) to each control circuit; And main body control portion 34.
Current detecting part 6 detects the current value I o that flows out in two electric wirings of the connecting portion 11 that can freely load and unload electric dust collector main body 9 and tube unit 100.Signal transformation component 30 generates dust by the voltage that produces and detects information signal (S0, S1) on the two ends of current detecting part 6.
Power supply (three terminal adjusters) 23, each the control circuit supply work direct current in tube unit 100.This power supply 23 is supplied with the lower high-quality direct current of noise level and is improved the S/N ratio to high-performance and highly sensitive dust detecting sensor 62.
On the air flow circuit of tube unit 100, with relative configuration of optical axis (omission details drawing) between light-emitting component (light emitting diode) 24 and the photo detector (phototransistor) 25.The photoelectric current It of the phototransistor 25 that detection takes place because of dust shading by between this optical axis the time changes the variation (dust detection signal) as resistance 26 (RT) both end voltage VT, detects information treatment part 32 by dust and carries out signal according to the translational speed of dust or size and handle and export two dust and detect information signal T0 and T1.Current transformation portion 31, to detect information signal T0, T1 corresponding with before two dust, and change the current value I O that flows through in connecting portion 11 of IS size.
Illustrate in greater detail the work of relevant above-mentioned inscape.
At first reference map 1 and Fig. 2 illustrate relevant dust detecting sensor 62.
Dispose by the relative respectively mode of stream across dust with the optical axis of photo detector 25 with light-emitting component 24.If being subjected to the light that is sent of light-emitting component 24, photo detector 25 then flows out photoelectric current IT.In the present embodiment, the IT that the both end voltage of resistance 26 (RT) is become regulation DC voltage VT (VT is less than the output voltage of power supply 23 and greater than the voltage of 0V) adjusted as bias current (biascurrent) initial stage of carrying out, so that detect by the variation just variation of VT of the dust in the optical axis as photoelectric current IT.
But photoelectric current IT just VT has greatly changed because of following former thereby its value.Promptly, (1) deviation of the luminous energy corresponding with the supply electric current I F of light-emitting component 24, (2) be used to prevent just directly adhere on the face at light-emitting component 24 and photo detector 25 deviation of light transmittance of the lens (write up omission) of dust, (3) photo detector 25 is transformed to the luminous energy of the light that received the deviation etc. of the conversion characteristics of photoelectric current IT.
If the flip-flop to the input signal VT of dust detection signal handling part 32 increases, then dust detects performance also increases (detailed), therefore need be adjusted into the voltage of regulation.In the present embodiment, by sensing characteristics correcting circuit 33 shown in Figure 2, relatively to the input signal VT of dust detection signal handling part 32, with the reference voltage V TH that generates by reference voltage generating circuit, and change automatically and adjust the drive current IF of light-emitting component 24 so that become identical value.By this adjustment, 23 consumed current ID of power supply also increase on each tube unit 100.If obtain the light 50 that mode is thus come adjusted input signal VT voltage by the dust shelter, the minor variations that then detects photoelectric current IT in photo detector is the minor variations of input signal VT just.If sweep common floor with electric dust collector, the quantity of the dust in the detected air flow circuit of the dust detecting sensor of present embodiment then, for example become hundreds of to tens thousand of between one second, the signal frequency of input signal VT comprises the composition of hundreds of Hz to tens of KHz.
Then, reference map 1 and Fig. 3 illustrate relevant dust detection signal handling part 32 and current transformation portion 31.
Dust detection signal handling part 32 is only handled AC signal composition VT from the output of dust detecting sensor 62 by C10, C11, and signal processing circuit 101 is handled with signal processing circuit 102 then.In the present embodiment, input signal VT is divided into assigned frequency and carries out signal and handle (thereby tiny signal is amplified so that it becomes data signal carries out level translation and handle).This is because known, analyze the result of the frequency content of input signal VT signal, the dust detecting sensor detects smaller dust (about for example from number μ to hundreds of μ), then the signal intermediate frequency rate increases than higher composition (for example tens of KHz arrive about hundreds of KHz), in addition, if the dust detecting sensor detects bigger dust (for example hundreds of μ are to counting about milli), then the composition that frequency ratio is lower (about for example from hundreds of Hz to number KHz) increases, and exports as dust detection information signal thereby utilize this characteristic will go up in each size (distinguishing with two types in the present embodiment) of dust with dust amount digital signal corresponding (pulse signal).
Thus, from the quantity digital signal corresponding T0 of dust detection signal handling part 32 output and bigger dust and with the quantity digital signal corresponding T1 of smaller dust.Symbol T0 is the base drive signal of the transistor T R1 of current transformation portion 31.Same in addition, symbol T1 is the base drive signal of transistor T R2.Current IS changes by the conduction and cut-off of transistor T R1 and TR2, so that the electric current I O that flows out in connecting portion 11 changes.Because being the current value of pulse signal so current IS, signal T0 and T1 also change with pulse mode.Thus, in the present embodiment, form following logic: when the dust detecting sensor did not detect dust, dust detection signal handling part 32 output dust detected information signal (pulse signal) T0, T1, and TR2 becomes conducting state so that TR1 becomes cut-off state.The transistor T R1 of current transformation portion 31 that should ' when the dust detecting sensor does not detect dust ' and the logic of TR2 are the most distinctive work of current transformation of the present invention portion.Promptly, for current value I S, relatively when the dust detecting sensor does not detect dust the value of (during no signal) (=IS0), the value when output dust detects information signal T0 (=IST0) and the value when output dust detects information signal T1 (=IST1), then become relation as IST0＞IS0＞IST1.
Then, reference map 1 and Fig. 4, signal transformation component 30 is described, this signal transformation component 30, will be by the current transformation portion 31 in the above-mentioned tube unit 100, the dust of delivering to connecting portion 11 as current pulse signal detects information signal, is changed to dust by the both end voltage VS contravariant of the current detecting part 6 (resistance R L) in the electric dust collector main body 9 and detects information signal (data signal).
The electric current I O that flows out in connecting portion 11 comprises that not only the dust of the current transformation portion 31 in the flexible pipe 100 detects information signal electric current composition IS, also comprises the electronic circuit institute consumed current of dust detecting sensor 62 or power supply 23 etc.In Fig. 4, reference voltage generating circuit carries out the stipulated time equalization and produces equalization reference voltage V SR voltage VS.
Stipulated time equalization in the present embodiment is that R (resistance) C (capacitor) time constant circuit of about 200ms constitutes by time constant, VSR=VS during no signal just when the dust detecting sensor does not detect dust.The minus side of comparison circuit 201 and comparison circuit 202 is connected with equalization reference voltage V SR.On the other hand, to comparing the positive side comparative voltage VS1 of circuit 201, be applied to the voltage of the DC voltage VLS1 that adds regulation on the voltage VS.In addition, to comparing the positive side comparative voltage VS2 of circuit 202, be applied to the voltage that deducts regulation DC voltage VLS2 on the voltage VS.Thus, signal transformation component 30, from magnitude relationship and the VSR of comparison circuit 202 and the magnitude relationship of the voltage between the VS2 of the VSR and the voltage between the VS1 of comparison circuit 201, dust is detected information signal carry out inverse transformation and output to calculate waiting the control part 35 that constitutes by microcomputer.
With Fig. 1 and Fig. 6, explanation is in the electric dust collector that constitutes in the above-described manner, generate output packet by tube unit 100 and contain the current signal IO that dust detects information signal, thereafter, the dust that is superimposed upon on the current signal IO detects information signal is come to be transformed to how again data signal by main body control portion 34 mode.
But, between the optical axis of light-emitting component 24 and photo detector 25, by by the dust that electric dust collector attracted, therefore generally added the so-called sensing that is used to protect light-emitting component 24 and photo detector 25 grades lentiform guard block with electronic unit.Thereby, the setting of the current value of the light-emitting component 25 under the FEEDBACK CONTROL comprise lens light transmittance deviation and carry out, the stable electric current I D that electronic circuit consumed (being IO) in the tube unit 100 produces deviation for each tube unit 100 of producing in batches.At first, to describing as the action that dust detects the current signal IS of information signal in stack generation on the supply electric current I O of above-mentioned tube unit 100.
In embodiment, dust detecting sensor 62 is made of light-emitting component 24 (infraluminescence LED) and photo detector 25 (phototransistor).Promptly, will be because of block the variation of the photoelectric current of the phototransistor that changes by the dust between the optical axis of infraluminescence LED and phototransistor, capacitor C10 and capacitor C11 by dust detection signal handling part 32 detect, amplify processing by signal processing circuit 101 and signal processing circuit 102, for example generate T0 and T1 and constitute pulse signal.This pulse signal T0 and T1 in Fig. 3, put down in writing as a pulse signal is next respectively, but be actually the pulse signal that dust that electric dust collector attracts takes place by time between the optical axis at every turn, the high-speed pulse ensemble about can being interpreted as from number KHz to tens of KHz.
In the present embodiment, by the frequency of the pulse signal T0 of signal processing circuit 101 output for till approximately from 1KHz to 10KHz.By the frequency of the pulse signal T1 of signal processing circuit 102 output be from about 10KHz to 50KHz till.Also have, this frequency is corresponding with the detected dust of dust detecting sensor 62 and the frequency of the signal of telecommunication of output, omits its detailed description.
Then, pulse signal T0 and T1 are transformed to pulsed current signal IS by current transformation portion 31.That is, if current signal IS0 is then flowed out in transistor T R1 conducting by pulse signal T0, in addition, if current signal IS1 is then flowed out in transistor T R2 conducting by pulse signal T1.Therefore, IS is superimposed upon the electric current I O of connecting portion 11 as the pulsed current signal that synthesizes with pulse signal T0 and the corresponding pulse current IS0 of T1 and IS1.The pulse signal T0 that is input to current transformation portion 31 is that positive pulse, pulse signal T1 are negative pulse, and the overlaying state of this pulsed current signal as shown in Figure 6A.In from the information of dust detecting sensor 62 to dust detection signal handling part 32 IO=ID+IS1 under the non-existent stable state of the pulse signal of current transformation portion 31 just, IO=ID+IS0 under the situation that T0 is output as the pulse signal to current transformation portion 31.In addition, IO=ID under the T1 situation about being output as pulse signal to current transformation portion 31.
Thus, dust is detected information signal as pulse current and the electric current I O stack of in connecting portion 11, flowing out.But, in the structure of transistor T R1, the TR2 of current transformation portion 31 as seen, under the situation of transistor T R1 conducting, no matter transistor T R2 conducting or end IS=IS0.This is that dust detects in information signal (pulse signal) T0 and the T1, disappearance T1 information.At a glance, may think the fatal defective of picture, but in advance T0 and T1 be set the deletion condition of this signal component, for example, (1) because of the extremely low signal of importance degree, even and lack on this signal controlling and also can not become special problem.(2) the signal deletion condition is decided, thereby easily can be recovered to lack signal etc., can not have problems as information signal communication allowing at receiver side.
In the present invention, also can shorten the signal call duration time of physical property and recover disappearance information even proposed the disappearance signal, thereby can make the technology that circuit structure is simple and price is low of sending part with the high-speed computation portion that microcomputer is calculated etc.But omit the detailed description of its critical piece in the present embodiment.
Then, the mode how current signal IO that the dust that generates by aforesaid mode detects information signal is transformed to data signal by main body control portion 34 again that comprises is described.
Electric current I O is transformed to voltage signal VS by the current detecting part 6 of main body control portion 34.But, more than comprise the institute's consumed current such as electronic circuit in the tube unit 100 among the narration overcurrent IO, but signal transformation component 30 of the present invention, carry out from constant current IO (=ID+IS1) differentiate the discrete pulse current IS and be transformed to again that dust detects information signal S0 and S1 studies.Signal transformation component 30 generates voltage VSR by reference voltage generating circuit.In the present embodiment, voltage VSR generates in the mode to averaging of voltage VS interior during about 200ms.Voltage VSR, can not be subjected to influence according to the voltage signal composition of the pulse current in the electric current I O (from about 1kHz to about 50kHz), and more can not be subjected to the influence of indivedual deviations of ID, and can be used as constant current IO (=ID+IS1) * RL=VS=VSR sets.(reference map 6B).
The signal transformation component 30 of Fig. 4, for the pulsed current signal composition in voltage VSR separation voltage VS, and comparison circuit (analog comparator IC) 201 is connected with VSR with 202 minus side reference voltage.201 positive side signal of the voltage (VS1) that will add assigned voltage VLS1 on VS and comparison circuit is connected, and the voltage (VS2) that will deduct assigned voltage VLS2 on VS is connected with the positive side of comparison circuit 202.And, comparison circuit 201 and 202, the corresponding dust of output and T0 and T1 detects information signal S0, S1 (reference map 6C) respectively.Thus, can constitute easily, between the tube unit 100 and electric dust collector main body 9 that come freely load and unload by the user, but only can power and the electric dust collector of high-speed communication with two electric wirings.
In addition, control part 35 for the Useful Information in the dust detection information signal, can be notified the user by display part 60.Thus, electric dust collector of the present invention, the good electric dust collector of convenience for the user.
In addition, in the present embodiment, the dust detection signal handling parts 32 in the tube unit 100 only are made of computing circuit, are transformed to complicated digital signal encoding and output to current transformation portion 31 but also can be calculated to wait by microcomputer.In addition, between tube unit and electric dust collector main body, can carry out the high-speed high capacity information communication.
In addition, for Content of Communication, can not be only limited to that dust detects information signal and can expanded application, if send side the communication information is transformed to the high-speed pulse current signal, receiver side is transformed to data signal from the high speed current pulse signal, then a plurality of small scale in circuitry unit are to a certain degree connected with two electric wirings, thereby only between each unit, easily can carry out high-speed communication with two electric wirings.Thus, the voltage V1 of connecting portion 11 is increased to a certain degree (for example 45V), so that even the contact reliability of connecting portion 11 is bad to a certain extent, but because current transformation portion 31 also exports signal (for example as the pulse current value of regulation basically, the impedance infinity of constant current circuit and the size of contact resistance can not exert an influence fully) and not influence fully in logic, thereby also easily expanded application in the higher communication mode of reliability.
As mentioned above, electric dust collector involved in the present invention, be provided at required communication mode on the transmission at a high speed and the high speed processing signal of telecommunication, be not limited to home-use electronic dust catcher, and expand to the electric dust collector (so-called central cleaner (central cleaner)) that do not need house wiring etc., also have also and can be between the fewer circuit of consumed power and group control module to come expanded application as the power line communication mode that superposes.
Claims (7)
1, a kind of electric dust collector comprises:
The electric dust collector main body, it is built-in with electric blowing machine that produces attraction and the main body control portion that the power supply of described electric blowing machine is controlled;
Flexible pipe or the dust introduction part that prolongs pipe etc., it can freely load and unload for described electric dust collector main body, is configured at least a portion of air flow circuit that the dust at position is swept in described electric blowing machine attraction;
The dust test section, it is connected with described main body control portion by two electric wiring portions near described dust introduction part and disposes, and the dust that can detect in the air flow circuit detects information signal by state as dust;
Current transformation portion, it can detect a plurality of current signals that information signal is transformed to different current values respectively with a plurality of dust; And
The signal transformation component, it is arranged at described main body control portion, and described a plurality of current signal contravariant can be changed to a plurality of dust and detect information signals,
Described main body control portion, the electric power of carrying described dust test section to be consumed via described two electric wiring portions,
Described dust test section, by described current transformation portion, change the current value of described two electric wiring portions, a plurality of dust are detected a plurality of current signals that information signal is transformed to different current values, and converted described a plurality of current signals can be sent to described main body control portion via described two electric wiring portions
Described main body control portion, a plurality of current signals with the different current values that send, come contravariant to be changed to a plurality of dust by described signal transformation component and detect information signal, resulting according to coming by described signal transformation component, detect information signals from a plurality of dust of dust test section, control is to the power supply of described electric blowing machine.
2, electric dust collector according to claim 1 is characterized in that,
Current transformation portion can generate fundamental current value arbitrarily, current value greater than first current signal of described fundamental current value, current value second current signal less than described fundamental current value,
The dust test section detects information signal with a plurality of dust and outputs to wiring portion as described first current signal and second current signal,
The signal transformation component possesses the average portion of electric current, and the mean value of first current signal of stipulated time and second current signal can detect as reference current value in the average portion of described electric current,
Described signal transformation component, relatively, detect poor less than first current signal of stipulated time and the current value between second current signal and the reference current value, and contravariant is changed to dust and detects information signal, can carry out dust detection information signal between dust test section and main body control portion thus and communicate by letter.
3, electric dust collector according to claim 2 is characterized in that,
Illuminating part and the radiative light accepting part that can accept described illuminating part relatively are configured in the air flow circuit its optical axis,
The dust test section is handled by light variation the carrying out signal that shading produced in the described optical axis dust by operational part, is transformed to electric impulse signal, generates the dust detection signal,
Described operational part possesses the different operational part of a plurality of signal treatment characteristics, according to generating first current signal and second current signal by dust-size or at least one side by dust amount.
4, according to claim 2 or 3 described electric dust collectors, it is characterized in that,
Current transformation portion possesses exclusive portion, and described exclusive portion preferably exports either party's current signal for the generation of first current signal and second current signal.
5, electric dust collector according to claim 1 is characterized in that,
Further possess display part, detect information signal to the control of making amendment of the demonstration information in the display part according to dust.
6, according to claim 2 or 3 described electric dust collectors, it is characterized in that,
Further possess display part, detect information signal to the control of making amendment of the demonstration information in the display part according to dust.
7, electric dust collector according to claim 4 is characterized in that,
Further possess display part, detect information signal to the control of making amendment of the demonstration information in the display part according to dust.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005228171A JP4674506B2 (en) | 2005-08-05 | 2005-08-05 | Electric vacuum cleaner |
| JP2005228171 | 2005-08-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1907204A true CN1907204A (en) | 2007-02-07 |
| CN100469299C CN100469299C (en) | 2009-03-18 |
Family
ID=37698559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200610110165XA Active CN100469299C (en) | 2005-08-05 | 2006-08-04 | Electric dust collector |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4674506B2 (en) |
| CN (1) | CN100469299C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102415851A (en) * | 2010-09-27 | 2012-04-18 | 株式会社牧田 | Dust collector |
| CN106793906A (en) * | 2015-01-30 | 2017-05-31 | 夏普株式会社 | Self-propelled suction cleaner |
| CN107661070A (en) * | 2016-07-28 | 2018-02-06 | 九阳股份有限公司 | A kind of clean robot and clean method with dust detection function |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012070883A (en) * | 2010-09-28 | 2012-04-12 | Toshiba Corp | Vacuum cleaner |
| JP2018143344A (en) * | 2017-03-02 | 2018-09-20 | シャープ株式会社 | Vacuum cleaner |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3669254B2 (en) * | 2000-09-18 | 2005-07-06 | 三菱電機株式会社 | Air purifier control device |
| JP4674410B2 (en) * | 2001-04-19 | 2011-04-20 | パナソニック株式会社 | Electric vacuum cleaner |
| JP3858754B2 (en) * | 2002-05-10 | 2006-12-20 | 松下電器産業株式会社 | Motor drive device for laundry equipment |
-
2005
- 2005-08-05 JP JP2005228171A patent/JP4674506B2/en active Active
-
2006
- 2006-08-04 CN CNB200610110165XA patent/CN100469299C/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102415851A (en) * | 2010-09-27 | 2012-04-18 | 株式会社牧田 | Dust collector |
| CN102415851B (en) * | 2010-09-27 | 2014-09-03 | 株式会社牧田 | Dust collector |
| CN106793906A (en) * | 2015-01-30 | 2017-05-31 | 夏普株式会社 | Self-propelled suction cleaner |
| CN107661070A (en) * | 2016-07-28 | 2018-02-06 | 九阳股份有限公司 | A kind of clean robot and clean method with dust detection function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100469299C (en) | 2009-03-18 |
| JP4674506B2 (en) | 2011-04-20 |
| JP2007037915A (en) | 2007-02-15 |
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