CN1086117A - Electric vacuum cleaner - Google Patents
Electric vacuum cleaner Download PDFInfo
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- CN1086117A CN1086117A CN93117374A CN93117374A CN1086117A CN 1086117 A CN1086117 A CN 1086117A CN 93117374 A CN93117374 A CN 93117374A CN 93117374 A CN93117374 A CN 93117374A CN 1086117 A CN1086117 A CN 1086117A
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- Prior art keywords
- flexible pipe
- main body
- infrared
- dust collector
- vacuum cleaner
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2857—User input or output elements for control, e.g. buttons, switches or displays
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/28—Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
- A47L9/2805—Parameters or conditions being sensed
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/32—Handles
- A47L9/327—Handles for suction cleaners with hose between nozzle and casing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Vacuum Cleaner (AREA)
Abstract
This paper relates to a kind of electric vacuum cleaner, and the infrared light emitting diode on electric vacuum cleaner is to main body of dust collector optical transmission operation information, and infrared receiver diode receives the operation information by the diode emission that is sent to the main body of dust collector infrared ray.The diode of rubescent outer linear light with a basic vertical direction from the most close user near the radiation operation information upwards partly of the flexible pipe hand steered.
Description
The present invention relates to electric vacuum cleaner, be specifically related to a kind of electric vacuum cleaner, the dust catcher operation information of partly being imported by near the flexible pipe of user hand steered place in it sends to this electric vacuum cleaner main body by infrared ray.
Traditional electric vacuum cleaner generally includes: a control circuit, this control circuit has the switch that is arranged near the flexible pipe part in hand steered place, and be located at a control circuit in the vacuum cleaner, it is connected with the control circuit that the front is mentioned earlier with an electric wire that is located in the flexible pipe, wherein, be located at a switching signal (operation information) that a near switch of the flexible pipe part the hand steered place provides and send to control circuit in the main body of dust collector by an electric wire.This cause between hose construction and flexible pipe root and the main body of dust collector be coupled complicated.Simultaneously, the reliability often being broken or be coupled between flexible pipe root and main body of dust collector of the electric wire in the flexible pipe often descends.In addition, the electric wire in the flexible pipe requires to become a lot of circles along with the ripple spiral winding of flexible pipe, has therefore increased the weight of flexible pipe, has reduced operability, also increases the cost of flexible pipe.
In view of the above, Japan Patent JP-A-58-221924, JP-A-61-87527 and JP-A-62-207427 etc. provided a kind of electric vacuum cleaner already, wherein, switching signal (so far always by the electric wire in the flexible pipe transmit) has been owing to used light-emitting component and photodiode, thereby obtains transmitting and receiving of best optics.
Specifically, according to JP-A-58-221924, a light-emitting component is arranged near the flexible pipe part of holding up locating, the infrared ray optical signals main body of dust collector that is sent by this light-emitting component receives.And JP-A-61-87527 has proposed a kind of electric vacuum cleaner, comprise a light emitting diode and a photodiode, be arranged on the tube connector of flexible pipe root and the junction between the main body of dust collector, and reflector, in order to receive with photodiode on the main body from the light-emitting component radiation, no matter the light on what direction, wherein light emitting diode is arranged on the tube connector.
Moreover, according to JP-A-62-207427, a light emitting diode and photodiode are inserted in junction between flexible pipe root and the main body of dust collector.Being positioned at this light emitting diode of flexible pipe root in one plane is relative with this optical diode that is positioned at main body side, or light emitting diode is arranged near the hand steered place the flexible pipe part, light emitting diode carries out optically-coupled by optical fiber in the flexible pipe and the photodiode on the main body.
In addition, JP-A-56-147635(UM) a kind of infrared and radio communication system is disclosed, this system uses two light emitting diodes to launch infrared ray on two different directions, like this, by utilizing the anti-reflection of smallpox, even when between transmitter and receiver, having obstacle, also can realize communication.
Resemble the disclosed this prior art of JP-A-58-221924 and have a defective, that is near the RF transmitter of the flexible pipe hand steered place part requires to aim at main body of dust collector, this will cause the problem in the use of vacuum cleaner.More particularly, according to traditional vacuum cleaner, do not provide the optical signal (infrared signal) that can make light emitting diode (infrared transmitter) generation that is arranged near the flexible pipe part in hand steered place always by the received reliably structure of photodiode (infrared remote receiver) that is located on the main body of dust collector.That is, not always to aim at this main body of dust collector if be located near the infrared transmitter of the flexible pipe part the hand steered place, then optical signal just can not be launched or receive reliably.Therefore, the use dust collector hose is very limited and becomes a problem.In addition, under the situation of electric vacuum cleaner, main body of dust collector is not always near the flexible pipe part that departs from the predetermined direction the hand steered place, and near the flexible pipe part the hand steered place and the optical signal between the main body of dust collector can interrupt by the user, and main body of dust collector usually can not partly be controlled by near the flexible pipe in the place of holding up as a result.
In such as JP-A-61-87527 and the disclosed prior art of JP-A-62-207427, though optical signal can be launched or be received between light emitting diode (infrared transmitter) and photodiode (infrared remote receiver) reliably, but electric wire and optical fiber need be provided with in the flexible pipe, make the hose construction complexity and cause the flexible pipe cost to increase, also increase flexible pipe weight simultaneously, cause the decline of operability again.Moreover when using optical fiber, the optically-coupled between main body of dust collector and the flexible pipe root makes adjusting complicated, and has correspondingly increased the cost of product.
An object of the present invention is to provide a kind of electric vacuum cleaner, its main body of dust collector can be subjected near the control of the flexible pipe part the hand steered place, and need not to make infrared transmitter to aim at main body of dust collector, even also be like this between near part of the flexible pipe the user is in hand steered place and the main body of dust collector time.
Another object of the present invention provides a kind of vacuum cleaner that alleviates flexible pipe weight and improved operability that has.
To achieve these goals, according to an aspect of the present invention, provide a kind of electric vacuum cleaner here, it comprises: a controller, this controller contain a switch that is located near the flexible pipe part in hand steered place, and the user is in order to input operation information; A RF transmitter, in order near the part of the flexible pipe hand steered infrared radiation vertically upward normally, the switching manipulation information that near the flexible pipe of user hand steered place partly imported sends to main body of dust collector; And an infrared receiver, be arranged on the upper surface of main body of dust collector, so as to receive from the RF transmitter radiation and by the infrared ray of ceiling or indoor wall reflection.
The user detects this pressing operation by the switch that is pressed near the flexible pipe part the hand steered place by control circuit, produces one and push switch corresponding digital code.This control circuit is according to the code that is produced, and the control RF transmitter makes the RF transmitter infrared radiation.RF transmitter substantially vertically upward is arranged near the flexible pipe part the hand steered place.By indoor ceiling or wall reflection, the upper surface that arrives dust catcher receives (detection) by infrared receiver from the infrared ray of RF transmitter radiation (emission).Experience the conversion of light/electricity in the control circuit that the optical signal that receives is established in main body of dust collector.When the user operates a switch,, control an electric fan according to the operation signal that is applied on it.Like this, no matter the relative position of near the part of the flexible pipe the hand steered place and main body of dust collector how, also no matter the position at user place between the two how, ultrared emission is all unaffected, so that the remote control of main body of dust collector is always guaranteed by the optical signal that near the flexible pipe the hand steered place partly sends.
According to a further aspect in the invention, a kind of electric vacuum cleaner is provided here, it comprises one first RF transmitter, with perpendicular infrared radiation up, the operation information of importing the user is operated a switch sends to main body of dust collector near the flexible pipe hand steered with optical mode in order near the part of the flexible pipe hand steered; One second RF transmitter, in order to near an infrared ray substantially horizontal planar radiation infrared ray of the part of the flexible pipe hand steered down,, near the switching information of the part of the flexible pipe the hand steered place of user's input is given to main body of dust collector so that being sent with optical mode; And an infrared receiver, be installed in the main body of dust collector top, with receive from the first RF transmitter radiation and by the infrared ray of indoor ceiling or wall reflection and from the infrared ray of the second RF transmitter radiation.
Push by the user and to be arranged on the switch that near the flexible pipe the hand steered place is partly located, detect above-mentioned pressing operation, therefore produce a digital code that is pressed corresponding to switch by the control circuit that is located at this flexible pipe part.This code sends near flexible pipe part and first RF transmitter in place substantially vertically upward that is positioned at hand steered.The infrared ray of Fa Songing is by indoor ceiling and/or wall reflection like this, and arrives the receiver on main body of dust collector top, received by this receiver.The code that receives is by the control circuit conversion of establishing in the main body, with the control electric fan.As a result, no matter near flexible pipe the hand steered place and the relative position between the main body of dust collector are how, even when the user was between the two, the infrared ray emission was also unaffected, thereby can the remote control dust catcher.
Simultaneously, launch downwards near the infrared ray plane of a basic horizontal of the flexible pipe part hand steered of sending out the form of digital code from second RF transmitter.Even the infrared ray that sends of first RF transmitter that uses in high ceiling or outdoor environment be can not arrive receiver the time, because second RF transmitter points to main body of dust collector, so also can the accomplishing of remote control main body of dust collector.
Fig. 1 illustrates the outward appearance perspective view of the electric vacuum cleaner of the first embodiment of the present invention.
Fig. 2 illustrates the control system block diagram of the electric vacuum cleaner of the first embodiment of the present invention.
Fig. 3 illustrates the installation in position figure of the diode of rubescent outer linear light in the first embodiment of the present invention.
Fig. 4 illustrates the schematic diagram of angle of emission infrared ray of the diode of rubescent outer linear light in the first embodiment of the present invention.
Fig. 5 illustrates in the first embodiment of the present invention method in order to the diode that drives rubescent outer linear light.
Fig. 6 illustrates the schematic diagram of first embodiment of the present invention middle infrared (Mid-IR) photodiode light-receiving angle.
Fig. 7 illustrates the outward appearance perspective view of the electric vacuum cleaner of the second embodiment of the present invention.
It is installation site and the angle figure that is arranged on the diode orientation of the rubescent outer linear light in the anchor clamps that Fig. 8 illustrates in the second embodiment of the invention.
Fig. 9 illustrates near the block diagram of the flexible pipe part control circuit the hand steered place of the second embodiment of the present invention.
Figure 10 illustrates the block diagram of the ON-OFF control circuit structure that is located near the flexible pipe part the hand steered place in the electric vacuum cleaner of third embodiment of the invention.
Figure 11 illustrates the block diagram of main body control circuit structure.
Figure 12 illustrates an example in order to the method for the diode that drives rubescent outer linear light.
Figure 13 illustrates another example in order to the method for the diode that drives rubescent outer linear light.
Figure 14 illustrates the block diagram of the ON-OFF control circuit that is located near the flexible pipe part the hand steered place in the electric vacuum cleaner of the fourth embodiment of the present invention.
Figure 15 illustrates the drive current of diode of the rubescent outer linear light of the fourth embodiment of the present invention.
Many preferred embodiments of the present invention are explained with reference to the accompanying drawings.In these accompanying drawings, same parts marks identical label and will not be repeated in this description.
At first, explain the first embodiment of the present invention with reference to Fig. 1-6.Fig. 1 illustrates the outward appearance of the electric vacuum cleaner of first embodiment of the invention and looks figure.Among Fig. 1, label 101 expression main body of dust collector include a control circuit and an electric fan, and this will be described below.Flexible pipe of label 102 expressions links to each other with the air intake of main body of dust collector 101.Switching manipulation unit of label 103 expressions is arranged near the flexible pipe part 109 in hand steered place.The diode of the rubescent outer linear light of label 104 expressions is located near the flexible pipe part 109 in hand steered place.Label 150 expressions one elongated segment pipe links to each other with the front end (near the part 109 hand steered place) of flexible pipe 102.Air entry of label 106 expressions links to each other with prolongation pipe 105.Photosensitive diode of infrared ray of label 107 expressions is located on the upper surface of main body of dust collector 101.Label 108 expression indoor ceiling.
Fig. 2 illustrates the block diagram of the major part configuration of control system in the vacuum cleaner of first embodiment of the invention.Near among Fig. 2 hand steered place of label 201 expressions flexible pipe part control circuit is arranged near the flexible pipe part 109 in hand steered place.Main body control circuit of label 301 expressions is arranged on the main body of dust collector 101.Microcomputer of label 203 expressions near the hand steered place the flexible pipe part control circuit 201, in order to control, near the flexible pipe part control circuit 201 the hand steered place.Label 204 expression dry cells.Label 205-207 represents the switch by the switching manipulation unit 103 of user's operation.The diode of the rubescent outer linear light of label 104 expressions.Transistor of label 208 expressions is in order to the diode 104 that drives rubescent outer linear light.The photosensitive diode of label 107 expression infrared rays in the main body control circuit 301.Microcomputer of label 302 expressions is in order to control main body control circuit 301.Receiving element of label 311 expressions is digital code in order to light/electricity conversion with the signal restoring that the photosensitive diode 107 of infrared ray receives.Electric fan that is used to produce suction of label 306 expressions.DC power supply circuit of label 308 expressions is to provide supply voltage to microcomputer and other circuit.AC power of label 309 expressions.
The operation of this embodiment is described now.During switch among the switch 205-207 near the flexible pipe part 109 the user of dust catcher presses hand steered place, microcomputer 203 detects above-mentioned push action, produce one with press the corresponding signal code of switch (digital code).Microcomputer 203 is luminous with the diode 104 of controlling rubescent outer linear light according to the digital code driving transistors 208 that produces like this, and the signal code that will produce is launched (this operation information signal has been converted to optical signal) as infrared signal.Because the diode 104 of rubescent outer linear light, always up be arranged on the upright position under the normal operating condition that will describe below, thus the diode 104 of rubescent outer linear light upwards radiation infrared ray bump ceiling 108 and from ceiling 108 reflections and arrive on the photosensitive diode 107 of infrared ray of main body of dust collector 101.The infrared signal that is received by the photosensitive diode 107 of infrared ray converts digital code to by receiving element 311, and inputs to microcomputer 302.Microcomputer 302 is controlled electric fan 306 whereby and is entered running status according to the signal code control drive circuit 307 that receiving element 311 produces.
Explain the installation site of the diode 104 of rubescent outer linear light with reference to Fig. 3.The diode 104 that is installed in the rubescent outer linear light near the flexible pipe part 109 in hand steered place is compared with switch 205-207(switching manipulation unit 103) pipe 105 is closer from prolonging.This can prevent when the user holds near the joystick type anchor clamps 110 of the flexible pipe part 109 the hand steered place even when switch 205-207 works hand also unlikely block rubescent outside the diode 104 of linear light.The diode 104 of rubescent outer linear light leaves holder part 110 and has also reduced the ultrared probability of blocking the diode institute radiation of rubescent outer linear light because of the user above the waist, because of having increased the probability of infrared signal arrival ceiling.
The infrared ray angles of directivity of the diode 104 of rubescent outer linear light, promptly with respect to the deflection of optical axis, on this direction rubescent outside the relative value of emission output of diode 104 of linear light be 0.5, this explains with reference to Fig. 4.As shown in Figure 4, under normal operating state, the diode 104 of rubescent outer linear light is installed on up and the normally vertical position of near the hand steered place the flexible pipe part 109 one.The diode 104 of rubescent outer linear light is preferably a kind of to have 114(25 ° at narrow directionality angle or littler) the diode of rubescent outer linear light.Because the infrared ray of radiation causes the transmitting range of infrared ray elongated by the light receiving part that indoor ceiling 108 reflections arrive dust catcher 101, and infrared ray by smallpox instead irregularly the reflection cause the directionality angle to broaden, even therefore for narrow directionality angle, the infrared ray that reflects from ceiling also reaches enough wide scope.
Explain the method for the diode 104 that drives rubescent outer linear light with reference to Fig. 5.In utilizing the remote control system of infrared ray, for fear of the maloperation that causes because of external noise, data are converted into the pulse-modulated signal 115 by pulse-position modulation system modulation, with as the output signal of carrying out amplitude modulation by subcarrier frequency 116.Usually, subcarrier frequency 116 is to select in the frequency range of 33KHz-40KHz, in the present embodiment 40KHz.Drive and control the diode 104 of rubescent outer linear light by microcomputer 203, produce the data of modulating, with as an infrared signal by microcomputer 203.On the other hand, the photosensitive diode of infrared ray 107 receives these infrared signals and is converted into the signal of telecommunication by the light receiving unit 311 of main body of dust collector 101.Have only the carrier component 40KHz bandpass filter (hereinafter being referred to as " BPF ") (not drawing among the figure) in this signal of telecommunication and be exaggerated, and detect this component of signal, so that a pulse-modulated signal (corresponding to the data of operation information) 115 is sent to microcomputer 203.
In this manner, because of establishing the BPF of a 40KHz in the receiving element 311, so have only the fundametal compoment of subcarrier frequency 116 to be received.The duty factor of supposing subcarrier frequency is defined as Ton/(Ton+Toff), then fundametal compoment 40KHz occupies maximum amount in duty factor 50%.But the heat of considering the diode of life-span of dry cell 204 and rubescent outer linear light is burnt problem, and the duty factor of subcarrier frequency 116 preferably remains on from 33% to being lower than on 50% the magnitude.
Now consult Fig. 6 the light-receiving angle of the photosensitive diode 107 of infrared ray be described, that is, with value on the optical axis mutually specific sensitivity reduce the angle of a half.The photosensitive diode 107 of infrared ray substantially vertically, its optical axis is arranged on the position on the upper surface of main body of dust collector 101 up.As shown in Figure 6, selective light acceptance angle 117 at the photosensitive diode 107 of the infrared ray more than 40 °.By the infrared signal of ceiling 108 reflection because light acceptance angle 117 is widened to 40 ° or above and reliably received.
As mentioned above, according to present embodiment, the infrared signal that the diode 104 of linear light sends outside being located near flexible pipe part 109 hand steered rubescent arrives indoor ceiling or wall and by indoor ceiling or wall reflection, is received by the photosensitive diode 107 of the infrared ray on the main body of dust collector upper surface then.No matter the relative position of near flexible pipe part 109 the hand steered place and main body of dust collector 101 how, even between near flexible pipe part 109 the user appears at hand steered place and the main body of dust collector 101 time, ultrared emission is also unaffected.Therefore, use near the optical signal of the flexible pipe part 109 hand steered place remote control main body of dust collector 101 reliably.Like this, eliminated thoroughly that traditionally electric wire is arranged on problem in the flexible pipe, thereby alleviated flexible pipe weight and improved operability.
With reference to Fig. 7-9 explanation second embodiment of the present invention.Second embodiment also comprises the photosensitive diode of another infrared ray except that containing the parts identical with first embodiment, under normal mode of operation, can be applied directly to infrared signal on the photosensitive diode 107 of infrared ray of main body of dust collector 101.
Fig. 7 illustrates the outward appearance perspective view of the electric vacuum cleaner of second embodiment of the invention.The diode of the additional rubescent outer linear light of label 108 expressions among Fig. 7, be arranged near the clamp holder end of the joystick type anchor clamps 110 of the flexible pipe part 109 the hand steered place, this diode is mounted to such an extent that to make its infrared radiation angle be open from the plane of a basic horizontal under normal mode of operation downwards.
The installation site and the ultrared deflection of the diode 108 of rubescent outer linear light are described with reference to Fig. 8.The diode of rubescent outer linear light is installed near the clamp holder end of the anchor clamps 110 of the flexible pipe part 109 the above-mentioned hand steered place.Therefore, the infrared signal of diode 108 radiation of linear light is seldom blocked by flexible pipe 102 at ordinary times outside rubescent, and on the photosensitive diode 107 of the infrared ray of easier arrival main body of dust collector 101.The diode 108 of rubescent outer linear light still is the such diode of infrared ray at radiation wide directionality angle (greater than 25 °).The fact in view of the diode 108 and the distance between the photosensitive diode 107 of infrared ray of rubescent outer linear light is subjected to flexible pipe 102 length restriction would rather enlarge opereating specification and also not enlarge the accessible scope of infrared ray.
Fig. 9 illustrates the block diagram of the flexible pipe part control circuit 201 near flexible pipe part 109 sides the hand steered place in the second embodiment of the invention.As shown in Figure 9, the diode 108 of rubescent outer linear light makes it luminous by driving transistors 208 simultaneously with the diode 104 of rubescent outer linear light under the control of microcomputer 203.Consequently outside rubescent the diode 104 of linear light through the infrared signal of ceiling reflection and directly from rubescent outside the infrared signal of the diode 108 of linear light simultaneously by photosensitive diode 107 receptions of infrared ray, thereby make the remote-controlled property of main body of dust collector 101 more reliable.
According to second embodiment, the infrared signal of diode 104 emissions of linear light is by indoor ceiling or wall reflection outside rubescent near the hand steered flexible pipe part 109, or even when the reflection of ceiling or wall is unsatisfactory, the infrared ray of the diode 108 of linear light arrives the photosensitive diode 107 of infrared ray on main body of dust collector 101 upper surfaces and is received outside rubescent on the clamp holder end of the anchor clamps 110 on being installed near the flexible pipe part 109 hand steered.Therefore, main body of dust collector 101 can carry out remote control more reliably by the optical signal near the flexible pipe part 109 the hand steered place.
Again with reference to the figure 10-13 explanation third embodiment of the present invention.
The outward appearance of the electric vacuum cleaner of the 3rd embodiment is similar to outward appearance shown in Figure 7, repeats no more here.According to this embodiment, near the flexible pipe part control circuit 201 the hand steered place is a remodeling of electric vacuum cleaner shown in Figure 7.
Figure 10 illustrates near the block diagram of the flexible pipe part control circuit 201 in hand steered place.The diode of the rubescent outer linear light of ceiling is aimed in label 104 expressions among Figure 10, the diode of label 108 another rubescent outer linear lights of expression, under normal operating state, the infrared radiation angle that tilts with facing down of basic horizontal directly is added to infrared signal on the photosensitive diode 107 of infrared ray of main body of dust collector 101.Label 213 indicates to carry out the numerical data of pulse position modulation.Label 209 and two subcarriers of 210 expressions are in order to 213 to carry out amplitude modulation to digital data.Label 211 and 212 expression AND gate circuits.The transistor that label 214 is represented in order to the diode 108 that drives rubescent outer linear light.Current-limiting resistance of label 215 expression is in order to the flow through electric current of diode 104 of rubescent outer linear light of restriction.Another current-limiting resistances of label 216 expression are in order to the flow through electric current of diode 108 of rubescent outer linear light of restriction.
Figure 11 illustrates the block diagram of main body control circuit 301.Label 303 expression amplifiers among Figure 11 are in order to amplify the signal that is received by the photosensitive diode 107 of infrared ray.Label 304 expression bandpass filters (hereinafter being referred to as " BPF ") only allow and are passed through by the subcarrier frequency component in the signal of photosensitive diode 107 receptions of infrared ray.Detector circuit of label 305 expressions converts digital code in order to the output signal with BPF304.
The operation of this circuit of explanation now.During switch 206 near the flexible pipe part the user of dust catcher pushes hand steered place as an example, microcomputer 203 detects current pressing operation, and produce corresponding to a signal code of pushing this switch, this signal code is through the arteries and veins position modulation and produce an output.Like this, be to carry out amplitude modulation through the numerical data 213 of pulse position modulation, and the diode 104 of rubescent outer linear light and 108 encourage by transistor 208 and 214 by subcarrier frequency 209 and 210, thus the infrared radiation signal.The infrared signal bump ceiling 109 of radiation or indoor similar structures thing also are reflected, and arrive then on the photosensitive diode 107 of infrared ray of main body of dust collector.
The infrared ray that has arrived the photosensitive diode 107 of infrared ray is converted into the signal of telecommunication, and after amplifying in the amplification 303 of Figure 11, has only subcarrier component to pass through BPF304.The signal that draws like this is converted into digital code in detector circuit 305, and is applied on the computer 302.Microcomputer 302 makes electric fan 306 operations whereby according to this concrete signal code control drive circuit 307.
With reference to Figure 12 the diode 104 of the rubescent outer linear light of driving and 108 method are described.In utilizing ultrared remote control system, be the maloperation that the optical noise of avoiding shown among Figure 12 401 owing to disturbing causes, data will experience subcarrier frequency 402 and 403 and carry out pulse position modulation and amplitude modulation(PAM). Subcarrier 402 and 403 frequency are generally selected between the 33KHz-40KHz.
The subcarrier frequency 402 of diode 104 that microwave is used to drive rubescent outer linear light is the same with the subcarrier frequency of the diode 108 that is used for driving rubescent outer linear light, then the drive current diode 104 and 108 of rubescent outer linear light of flowing through simultaneously.
But because near the power supply of the flexible pipe part control circuit 201 the hand steered place is dry cells 204, and its internal resistance is very big, excitation makes this supply voltage landing in the time of the diode of two rubescent outer linear lights, thereby produce a problem often, that is required drive current can not flow to the diode 104 and 108 of rubescent outer linear light.Contingent another problem is that this voltage landing makes microcomputer 203 unnecessary resetting, or makes the lost of life of dry cell 204.
According to this embodiment, make the phase deviation of subcarrier frequency 402 and 403, solved with regard to making above-mentioned problem.In other words, as shown in figure 12, subcarrier frequency 402 and 403 the mutual deviation preventing of phase place do not flow through the simultaneously diode 104 and 108 of rubescent outer linear light of drive current, therefore, reduced the voltage landing on the dry cell 204, thereby the drive current that makes the rubescent outer linear light of flowing through throw away diode 104 and 108 has increased.
For this reason, the information on the switch of user's operation sends on the main body controller 301 more reliably, to have improved its sensitivity.
Therefore again owing to established BPF403 in the main body controller 301, only allow fundametal compoment in the subcarrier frequency by with useful in reception.The duty factor of supposing subcarrier is Ton/(Ton+Toff), then fundametal compoment is to occupy maximum quantity at 50% o'clock in duty factor.But consider that the diode 104 of rubescent outer linear light and 108 heat burns problem, the duty factor of the subcarrier of each light emitting diode can not be set to 50%.
And, as shown in figure 12, duty factor 1=Ton/(Ton+Toff when subcarrier 402) is set at 25%, and the duty factor 2=Ton/(Ton+Toff of subcarrier 403) be set to 25% o'clock, because of the duty factor 3 of the photosensitive diode 107 of infrared ray is duty factor 1 and duty factor 2 sums (=50%) (shown among Figure 12 404), so, maximum through its output behind the BPF304.Because of the diode 104 and 108 of rubescent outer linear light is 25% to be driven with duty factor respectively,, no heat takes place again so burning phenomenon.
According to this embodiment, duty factor 1 equals duty factor 2.But consider the diode 108 of rubescent outer linear light and this fact that limits that the distance between the photosensitive diode 107 of the infrared ray on the main body of dust collector is subjected to flexible pipe 102, the output of the diode 108 of rubescent outer linear light is less than the output of the diode 104 of rubescent outer linear light.As shown in figure 13, duty factor 4 by setting carrier wave 501 for example (=Ton4/(Ton4+Toff4)) is 33.3% and sets the duty factor 5(=Ton5/(Ton5+Toff5 of carrier wave 502)) be 16.7%, duty factor 4 is increased to surpass duty factor 5.Certainly, require duty factor 4 to add that duty factor 5 is equal to or less than 50% simultaneously.
As mentioned above, according to present embodiment, even in infrared signal, contain switching information that near the flexible pipe hand steered partly sends by indoor ceiling or wall reflection, or under the not satisfied situation of the reflection of ceiling, from the plane of a basic horizontal, install backward rubescent outside the infrared signal of diode radiation of linear light also can arrive the set receiver in the top of main body of dust collector and be received.Therefore, no matter near flexible pipe part the hand steered place and the relative position between the main body of dust collector how, also don't work between near hand steered place flexible pipe part and the main body of dust collector whether obstruction arranged, ultrared emission is all unaffected.Therefore, main body of dust collector can be by remote control, and can exempt electric wire in the legacy equipment and be arranged on way in the flexible pipe, thereby has alleviated the weight of flexible pipe and improved the operability of dust catcher.
Between flexible pipe root and main body of dust collector, be coupled structurally and also simplified, thereby reduce product cost.Also eliminate electric wire and be located in the flexible pipe easily and between flexible pipe root and main body of dust collector, couple the out of order shortcoming in place, improved reliability.
Describe the fourth embodiment of the present invention in detail below with reference to Figure 14 and Figure 15.
Figure 14 illustrates near the block diagram of the flexible pipe part control circuit 201 the hand steered place of the fourth embodiment of the present invention.Label 601 one of expression among Figure 14 are used for 213 subcarriers that carry out amplitude modulation to digital data.Capacitor of label 602 expressions.According to this embodiment, the diode 104 and 108 of unique subcarrier 601 in order to drive rubescent outer linear light simultaneously.In this driving process, because of the internal resistance of battery 204 makes the voltage landing, the drive current of the diode 104 of the rubescent outer linear light of therefore flowing through reduces and makes it can not produce required infrared ray to export.
Yet, consider that distance between the photosensitive diode 107 of infrared ray of the diode 108 of rubescent outer linear light and main body of dust collector is subjected to the restriction of flexible pipe 102, can make the infrared ray output of diode 108 of rubescent outer linear light littler than the output of the diode 104 of rubescent outer linear light.
In view of above consideration, the resistance of current-limiting resistance 215 is in this case littler than current-limiting resistance 216, flow through the drive current waveform of diode 104 of rubescent outer linear light shown in 701 among Fig. 7, and the drive current waveform of the diode 108 of the rubescent outer linear light of flowing through is shown in 702.
As mentioned above, according to present embodiment, flow through that the drive current of the diode 104 of linear light increases outside ceiling rubescent, consequently, the information on the switch that the user operated sends to main body controller 401 reliably, thereby has improved reliability.
In addition, according to present embodiment, contain infrared signal that near the flexible pipe hand steered of switching information partly launches by indoor ceiling or wall reflection.Even under the not satisfied situation of the reflection of ceiling, the infrared signal of the rubescent outside line diode radiation of installing backwards from the plane of a basic horizontal also can arrive the receiver at main body of dust collector top, and is received more reliably by it.Consequently, no matter near flexible pipe part the hand steered place and the relative position between the main body of dust collector are how, also no matter how the user may stop that ultrared emission is all unaffected between near part of the flexible pipe the hand steered place and main body of dust collector.So, can be to the main body of dust collector remote control, and eliminated in traditional equipment be laid in way in the flexible pipe of electric wire, thereby alleviated the weight of flexible pipe and improved the operability of dust catcher.
In electric vacuum cleaner of the present invention, comprise near hand steered flexible pipe infrared signal that partly launch, that include switching information by indoor ceiling or wall reflection after, the receiver that arrives the top of main body of dust collector also is received.Therefore, no matter near flexible pipe part the hand steered place and the relative position between the main body of dust collector are how, also no matter how the user stops that ultrared emission can not interrupted between near part of the flexible pipe the hand steered place and main body of dust collector.Consequently, dust catcher can have been eliminated the way that so far electric wire is located in the flexible pipe, thereby alleviate flexible pipe weight and improved operability by remote control.
In addition, the coupling structure between flexible pipe root and the main body of dust collector is simplified, and production cost descends.Simultaneously, eliminated electric wire and be located in easy fracture in the flexible pipe or being coupled between flexible pipe root and main body of dust collector and electrically contact fault, thereby improved reliability.
Claims (12)
1, a kind of electric vacuum cleaner, it comprises: a main body of dust collector, this main body include an electric fan and a control circuit device that is used to control this electric fan; A flexible pipe links to each other with main body of dust collector; One prolongs pipe, links to each other with flexible pipe; An inhalation port, link to each other with the prolongation pipe, above-mentioned control circuit device includes switching device, be installed near the hand steered place of flexible pipe part, and be provided the operation information of control main body of dust collector operation, this electric vacuum cleaner is characterized in that comprising: infrared transmitting device, in order near the flexible pipe hand steered part up with the direction infrared radiation that is basically perpendicular to horizontal plane so that the user is carried out optic emission from the operation information to main body of dust collector that near the flexible pipe hand steered partly provides, and infrared receiver, be installed on the main body of dust collector end face with receive from the infrared transmitting device radiation and from the infrared ray of the works reflection of indoor ceiling and wall.
According to the described electric vacuum cleaner of right right, it is characterized in that 2, described infrared transmitting device is provided with than the more close prolongation pipe of above-mentioned switching device.
3, electric vacuum cleaner according to claim 1 is characterized in that, the directionality angle of described infrared transmitting device is defined as an angle with respect to optical axis direction, and its value is not more than 25 °, and to penetrate output valve be 0.5 in relative illumination on this direction.
4, the vacuum cleaner of determining according to claim 1, it is characterized in that, described infrared receiver is arranged on the main body of dust collector upper surface backward with vertical substantially direction, the light acceptance angle of this infrared receiver be defined as with optical axis on the value angle during the specific sensitivity drop by half mutually, its value is not less than 40 °.
5, a kind of electric vacuum cleaner, it comprises: a main body of dust collector, this main body include one in order to produce electric fan and a control circuit device that is used to control this electric fan of suction; A flexible pipe links to each other with main body of dust collector; One prolongs pipe, connects with flexible pipe; The control circuit device includes switching device, is located near the flexible pipe in hand steered place and partly goes up and be provided operation information in order to the control main body of dust collector; This electric vacuum cleaner is characterized in that comprising: first infrared transmitting device, with near the flexible pipe of a basic vertical direction hand steered infrared radiation upwards partly, to send the operation information that the user partly provides near the flexible pipe hand steered to main body of dust collector light; One second infrared transmitting device, in order near the plane downward radiation infrared ray of the part of the flexible pipe hand steered with a basic horizontal, with near the flexible pipe part hand steered to main body of dust collector light transmit button operation information; And infrared receiver, be located on the main body of dust collector upper surface, with receive from the described first infrared transmitting device radiation and by the infrared ray of the works reflection that comprises indoor ceiling and wall and from another infrared ray of the second infrared transmitting device radiation.
6, electric vacuum cleaner according to claim 5 is characterized in that, the directionality angle of described second infrared transmitting device is greater than the directionality angle of first infrared transmitting device.
7, electric vacuum cleaner according to claim 5 is characterized in that, described second infrared transmitting device is located near the ansa anchor clamps end the hand steered place.
8, electric vacuum cleaner according to claim 5, it is characterized in that, the described phase deviation that is used to drive first subcarrier signal of first infrared transmitting device drives second subcarrier signal of second infrared light emitting diode, thereby prevents drive current first and second infrared light emitting diodes of flowing through simultaneously.
9, the straight Kong dust catcher of electricity according to claim 5 is characterized in that, is not more than 50% in order to the duty factor sum of the duty factor of the subcarrier signal that drives first infrared transmitting device and the subcarrier signal that drives second infrared transmitting device.
10, meaning vacuum cleaner according to claim 5 is characterized in that, the duty factor of the secondary worker ripple signal of described driving first infrared facility is greater than the empty factor of the subcarrier signal that drives second infrared light emitting diode.
11, electric vacuum cleaner according to claim 5 is characterized in that, first drive current of described driving first infrared transmitting device is greater than second drive current that drives second infrared transmitting device.
12, electric vacuum cleaner according to claim 5, it is characterized in that the duty factor of the subcarrier signal of the duty factor of the subcarrier signal of described driving first infrared transmitting device and driving second infrared transmitting device is not less than 33% and is not more than 50%.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4241700A JP2874473B2 (en) | 1992-09-10 | 1992-09-10 | Electric vacuum cleaner |
| JP241700/92 | 1992-09-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1086117A true CN1086117A (en) | 1994-05-04 |
| CN1031314C CN1031314C (en) | 1996-03-20 |
Family
ID=17078232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93117374A Expired - Fee Related CN1031314C (en) | 1992-09-10 | 1993-09-09 | Electric vacuum cleaner |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2874473B2 (en) |
| KR (1) | KR960005458B1 (en) |
| CN (1) | CN1031314C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101141907B (en) * | 2005-03-18 | 2010-09-08 | 沃维克股份有限公司 | Vacuum cleaner comprising a simple signal transmission device arranged between the handle and/or attachment and the base part |
| CN102462452A (en) * | 2010-10-29 | 2012-05-23 | 株式会社东芝 | Electric cleaner |
| CN107597732A (en) * | 2017-10-16 | 2018-01-19 | 国网新疆电力公司检修公司 | A kind of 750 kv substation screen three casees clearing apparatus of cabinet |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58221924A (en) * | 1982-06-18 | 1983-12-23 | 松下電器産業株式会社 | Remote control apparatus of electric cleaner |
| JP2612328B2 (en) * | 1988-12-24 | 1997-05-21 | 株式会社テック | Electric vacuum cleaner |
-
1992
- 1992-09-10 JP JP4241700A patent/JP2874473B2/en not_active Expired - Fee Related
-
1993
- 1993-09-02 KR KR1019930017467A patent/KR960005458B1/en not_active IP Right Cessation
- 1993-09-09 CN CN93117374A patent/CN1031314C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101141907B (en) * | 2005-03-18 | 2010-09-08 | 沃维克股份有限公司 | Vacuum cleaner comprising a simple signal transmission device arranged between the handle and/or attachment and the base part |
| CN102462452A (en) * | 2010-10-29 | 2012-05-23 | 株式会社东芝 | Electric cleaner |
| CN102462452B (en) * | 2010-10-29 | 2014-12-31 | 株式会社东芝 | Electric cleaner |
| CN107597732A (en) * | 2017-10-16 | 2018-01-19 | 国网新疆电力公司检修公司 | A kind of 750 kv substation screen three casees clearing apparatus of cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0686749A (en) | 1994-03-29 |
| CN1031314C (en) | 1996-03-20 |
| KR960005458B1 (en) | 1996-04-25 |
| KR940006536A (en) | 1994-04-25 |
| JP2874473B2 (en) | 1999-03-24 |
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Legal Events
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|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 19960320 Termination date: 20120909 |