JPH02305536A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To have display motion in actual use without driving a motor-driven blower, when it is exhibited, by allowing a control means to make demo. mode identification actuated by pushing a set input key within a certain period of time from the power being turned on, and operating a demo. display automatic operation means through changing-over of the number of settings of this set input key. CONSTITUTION:When a vacuum cleaner is exhibited, a set input key 49 is pushed for changing-over of the number of settings within a certain period of time from the power being turned on to a control means 30, to allow its demo. mode identifying means 71 to make identification of the demo. mode, and the control means actuates a demo. display auto. operation means 70 to put a display means 44 in operation at the step of display contents previously stored, and thus demo. display is performed. Meantime a motor-driven blower 2 remains out of operation. When the set input key 49 is put in the position for practical service, the blower is driven with the set output power, while the display means displays such factors to be informed as the control amount for the output of the blower, the sensing amount of the pressure or wind quantity on a suction/exhaust path, and the dust amount in a dust collector.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a vacuum cleaner, and relates to a control amount of the output of an electric blower, a detected amount of pressure or air volume in an intake/exhaust flow path, and the dust collection method. Equipped with a display means for displaying the amount of dust that should be reported, such as the amount of dust in the area,
The present invention relates to a display means that allows display operations to be performed in actual use without driving an electric blower during exhibition.

(Prior art) In conventional vacuum cleaners of this type, for example,
As described in Publication No. 4-64615, when a set input key provided at the end of a hose is operated, the display means displays the corresponding light, etc., and displays the set input key that was operated. By controlling the input to the electric blower in response to each of In addition to displaying the display, the output of the electric blower is controlled by, for example, detecting the flow rate in the air passage with a flow rate detection means and controlling the input of the electric blower so that the suction air has a constant pressure or flow rate. The output of the electric blower is set by operating a set input key, and the control state of the electric blower is displayed on a display means.

(Problems to be Solved by the Invention) The display operation of the display means for displaying the control state of the electric blower is performed based on the control of the electric blower. On the other hand, in order to emphasize the control function of the electric blower during a sales display, it is effective to operate the display means, but when the display means is operated, the electric blower is also driven.

Therefore, in order to operate only the display means to the state of actual use without driving the electric blower, this display means can be operated by a program in the demonstration mode of the control means. Electronic household appliances such as electronic rice cookers do not have a set input key to start the operation of the display means in the demonstration mode, and there is no input method to operate the control means in the demonstration mode program. There was a problem.

The present invention has been made in view of the above-mentioned problems.The present invention is a demo mode input routine that can be implemented by simple operations using the set input keys required for vacuum cleaners to control electric blowers. The present invention provides a vacuum cleaner in which the control means performs a program operation in a demonstration mode in distinction from a use operation, and the display means starts a demonstration display operation.

[Structure of the invention]

(Means for solving the problem) The vacuum cleaner of the invention according to claim 1 forms a dust collection part,
It has an electric blower and a control means for controlling the output of the electric blower, and includes a set input key for setting the input of the electric blower to an arbitrary characteristic, a control amount of the output of the electric blower, and a control means for controlling the output of the electric blower. and a display means for displaying an amount to be reported, such as a detected amount of pressure or air volume, or an amount of dust in the dust collecting section, and the display means stores in advance a step of content to be displayed and operates the display means. The control means includes a demonstration display automatic operating means for displaying a demonstration, and the control means has a demo mode identification function that identifies the operation of switching the set number of times using the set input key within a certain period of time after power is turned on to the control means as a demonstration mode. The demo display automatic operation means is operated by a switching operation of the set input key a set number of times.

The vacuum cleaner of the invention according to claim 2 forms a dust collection part,
It has an electric blower and a control means for controlling the output of the electric blower, and includes a set input key for setting the input of the electric blower to an arbitrary characteristic, a control amount of the output of the electric blower, and a control means for controlling the output of the electric blower. and a display means for displaying an amount to be reported, such as a detected amount of pressure or air volume, or an amount of dust in the dust collecting section, and the display means stores in advance a step of content to be displayed and operates the display means. The control means includes a demo display automatic operating means for displaying a demo display, and the control means includes a demo mode identification means for identifying a demo mode if the set input key is switched a set number of times within a predetermined period of time from the start of the operation of the set input key. The demo display automatic operation means is operated by switching the set input key a set number of times within a predetermined period of time from the start of operation of the set input key.

In addition, the vacuum cleaner according to claim 3 forms a dust collecting section, has an electric blower, and is provided with a control means for controlling the output of the electric blower, and the input of the electric blower is adjusted to arbitrary characteristics. It has a set input key for setting, and display means for displaying an amount to be reported, such as a controlled amount of the output of the electric blower, a detected amount of pressure or air volume of the intake/exhaust flow path, and an amount of dust in the dust collecting section, The display means has a demonstration display automatic operation means that stores steps of content to be displayed in advance and operates the display means to display a demonstration, and the control means controls the set input key according to a set pitch within a certain range. The set number of times switching operation has a demo mode identification means for distinguishing it from the demo mode, and the demo display automatic operation means is operated by operating the set input key for a set number of times at a set pitch within a certain range. That is.

(Function) In the vacuum cleaner of the invention as set forth in claim 1, when displaying the vacuum cleaner, if the set input key is switched a set number of times within a certain period of time after power is turned on to the control means, the demonstration mode identification means of the control means is activated. is identified as the demo mode, the control means operates the demonstration display automatic operation means of the display means, the demonstration display automatic operation means operates the display means according to the steps of the display contents stored in advance, and the display means Display.

At this time, the electric blower is not driven. In addition, if the set input key is operated for actual use, that is, if the set input key is not switched a set number of times within a certain period of time after power is turned on to the control means, the set input key is not operated. Accordingly, the input of the electric blower is set to the set characteristic, the electric blower is driven with the set output, and the display means is set to the set characteristic.
For example, the vacuum cleaner of the invention according to claim 2 is characterized in that the amount to be reported is the controlled amount of the output of the electric blower, the detected amount of pressure or air volume of the intake/exhaust flow path, the amount of dust in the dust collecting section, etc. When displaying the machine, if the set input key is switched a set number of times within a certain period of time from the start of operation of the set input key, the demo mode identification means of the control means identifies it as the demo mode,
The control means operates the demonstration display automatic operation means of the display means, the demonstration display automatic operation means operates the display means in steps of display contents stored in advance, the display means displays the demonstration, and at this time, the electric blower is not driven. In addition, if the set input key is operated for actual use, the input of the electric blower will be set to the set characteristics according to the set input key operation, the electric blower will be driven with the set output, and the display will be displayed. The means performs a display operation according to the output state of the electric blower.

In the vacuum cleaner of the invention according to claim 3, when the set input key is operated to switch a set number of times at a pitch within a predetermined range when displaying the vacuum cleaner, the demo mode identifying means of the control means identifies the mode as the demo mode. The control means operates the demonstration display automatic operation means of the display means, the demonstration display automatic operation means operates the display means according to the steps of display contents stored in advance, the display means displays the demonstration, and at this time, The electric blower is not driven. In addition, if the set input key is operated for actual use, the input of the electric blower will be set to the set characteristics according to the set input key operation, the electric blower will be driven with the set output, and the display will be displayed. The means performs a display operation according to the output state of the electric blower.

(Example) Next, the configuration of an example of the vacuum cleaner of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a vacuum cleaner main body, and a display panel 4 of a display means 3 showing the output of an electric blower 2 provided inside is disposed on the top surface of the vacuum cleaner main body 1. This display panel 4 is provided with light emitting diodes, as shown in FIG.

Further, a suction hose 5 is rotatably attached to the front part of the upper surface of the vacuum cleaner main body 1 so as to be freely inserted and removed. At the tip of the suction hose 5, a grip tube 7 is provided, into which an extensible extension tube 6 is inserted and connected in a removable manner, and this grip tube 7 is provided with a manual operation section 8. At the tip of the extension tube 6, a connecting tube portion 11 of a suction port body 10 having an AC motor 9 for driving a brush built therein is detachably attached.

The manual operation section 8 is provided with a manual control means 12, as shown in FIG. A display board 13 is attached to the hand operation unit 8, and the display board 13 includes, for example, "
On one side of the "Strong" display is a "Strong" operation button 1 for operating a switch 14 (for example, trade name TACT Switch) having a normally open contact of one circuit and one contact for varying the output of the electric blower 2.
5, and on the other side, for example, a light emitting diode 16 is disposed to display a "strong" output. Similarly, on one side of the "Auto" display there is an "Auto J operation button I8 for operating the normally open contact switch 17 for Auto, and on the other side there is a light emitting diode 19, and on the other side there is a "Weak" display. On one side is a sofa.
A "weak" operation button 21 is provided to operate a switch 20 having a normally open contact, and a light emitting diode 22 is provided on the other side. Further, on one side of the "OFF" display, an "OFF J" operation button 24 for operating the normally open contact switch 23 is provided.

Further, the display board 13 is provided with an operation button 26 for operating the on switch 25 of the brush motor 9 and an operation button 28 for operating the off switch 27 of the brush motor 9.

Further, a light emitting diode 29 for displaying motor drive is provided near the operation button 26 for turning on the motor.

Next, the control means 3o of the vacuum cleaner main body 1 will be explained with reference to FIG.

Reference numeral 31 denotes a commercial AC power source, and this commercial AC power source 31 is connected to a control means 3θ, which is connected to the electric blower 2 and controls the output of the electric blower 2.

In this control means 3G, the primary winding of a step-down transformer 32 is connected to a commercial AC power supply 31, and the rectifier means 33 for rectifying alternating current into a pulsating current is connected to the secondary winding of this transformer 32. The rectifying means 33 is connected to a handheld power supply means 34 and a constant voltage means 35, which convert the voltage into constant voltages of different voltage values. For example, the handheld power supply means 34 has a terminal A for supplying current to the handheld control means 12. Further, a current detecting means 55 is connected to the terminal B connected to this hand control means 12 via a detecting means 56 for detecting current, and this current detecting means 55 is connected to a central processing unit 36 composed of a microcomputer. It is connected. Further, the hand power source means 34 is an air path detection means 3 that detects the pressure or flow rate in the air path of the vacuum cleaner main body 1.
7 and a converting means 38 for converting the detected value of the air path detecting means 37 into an electrical output. This detecting means 39 is connected to the central processing unit 36 via amplifying means 40 that amplifies the output of this detecting means 39.
A sensor output means 41 connected to is connected.

Further, the constant voltage means 35 is connected to a central processing unit 36 to drive the central processing unit 36, and the central processing unit 3G and the constant voltage means 35 are connected to each other.
Initializing means 42 is connected to return the program progress of the central processing unit 36 to its initial state when the power is turned on again.

Furthermore, the secondary winding of the transformer 32 is connected to a commercial AC power source 3.
Detecting zero volts of 1 and 5Q) lx and 6
0H! Zero-cross detection means 43 is connected to the central processing unit 36 for frequency identification.

Further, a light emitting means 54 constituting a display means 44 for displaying the output of the electric blower 2 and the operating position of the hand control means 12 is connected to the central processing unit 36 via a display opening/closing means 45. . Further, the central processing unit 3
6 to a sound generating means 4 such as a buzzer, which constitutes a display means 44 that notifies abnormalities such as clogging via a sound driving means 46.
7 is connected.

Furthermore, the central processing unit 36 is configured to control the output of the electric blower 2 to "strong" and "high", for example, during normal times and at night.
Set input key 4 with a switch 48 for switching to "low"
9 is connected.

Further, the central processing unit 36 is connected to an output control means 52 consisting of a drive means 50 and an insulated transmission means 51,
This output control means 52 is connected to a power control means 53 connected between the commercial AC power supply 31 and the electric blower 2 .

Further, the central processing unit 36 has a configuration shown in FIG. 5.

The set input key 49 is input through the set input means 60, and the zero cross detection means 43 is input through the zero cross input means 6.
1, the initializing means 42 is connected to the initializing input means 63, and the current detecting means 55 and the sensor input means 41 are input to alternately switch the inputs from the current detecting means 55 and the sensor input means 41. Switching means 64
It is connected to a data conveying means 66 for reading and reading out the respective data via an A/D converting means 65 for digitizing the data.

The data transport means 66 also includes a data storage means 67.
and temporary storage means 68, and this data storage means 67 stores in advance the steps of the display contents by the display means 44, and demo display automatic operation means 70 for operating the display means 44; The set number of switching operations, for example, three times, by the set input key 49 within a certain period of time, for example, 5 seconds after the power is turned on to the control means 30, includes a demo mode identification means 71 that identifies the demo mode. There is. The storage means 69 stores data that is converted into an output corresponding to the suction force set for the output of the current detection means 55 and the output of the sensor output means 41 and stored. Further, the data conveyance means 66 is connected to a calculation processing means 72 which calculates the outputs from the input switching means 64 and the storage means 69 into a set suction capacity.

Furthermore, the display means 44 is connected to a display opening/closing means 45 that turns on and off the display. This display opening/closing means 45 is connected to the data conveying means 66.
5 is connected via a display output means 73 that operates the display output means 73. Also, a sound output means 74 and an output control means 5 are connected to the sound sound drive means 46 and actuate the sound sound drive means 46.
2 is the output means 75 for operating the data transfer means 6.
6, respectively.

Next, the hand control means 12 will be explained based on FIG.

Reference numeral 81 denotes a blower opening/closing means with one end grounded, and this blower opening/closing means 81 selects the operating stage of the electric blower 2, including an off blower opening/closing means 82 consisting of a switch 23 for off selection, and a switch for automatic selection. The air blower opening/closing means 83 includes an automatic blower opening/closing means 83 consisting of a switch 17, an opening blower opening/closing means 84 consisting of a switch 20 for selecting a weak setting, and a blower opening/closing means 85 for a strong setting consisting of a switch 14 for selecting a strong setting. Further, the electric motor opening/closing means 86 is for selecting the operation stage of the brush electric motor 9, and includes a switch 27 for switching off and selecting the brush electric motor 9, and a switch 25 for driving the brush electric motor 9. It is comprised of drive motor opening/closing means 88 for selection. The blower opening/closing means 81 and the motor opening/closing means 86 are connected to a logic processing means 89, and the logic processing means 89 follows the operation steps set by the blower opening/closing means 81 and the motor opening/closing means 86. Interlocking and non-interlocking operations are processed using the set logic.

Furthermore, a blower signal load means 92 is connected to the logic processing means 89 and generates a signal output corresponding to the blower opening/closing output from the blower opening/closing means 81 which has been subjected to logic processing by the logic processing means 89. Means 92 is a cut-off blower signal load means 93 for setting the electric blower 2 to be turned off, an automatic blower signal load means 94 for setting automatic operation of the electric blower 2, and an opening blower signal load means for setting the electric blower 2 to be in weak operation. It consists of a means 95 and a strong blower signal load means 96 for setting the electric blower 2 to operate at high power.

The blower signal loading means 92 includes a blower amplifying means 97 for amplifying the signal output from the blower signal loading means 92.
The blower amplification means 97 is connected to the cut-off blower signal load means 93 and is connected to the cut-off blower amplification means 98 which amplifies the output of the cut-off blower signal load means 93, and the automatic blower signal load means 94. automatic blower amplifying means 99 for amplifying the output of the automatic blower signal loading means 94; and weak blower amplifying means 100 connected to the opening blower signal loading means 95 for amplifying the output of the opening blower signal loading means 95. and a strong blower amplifying means 101 connected to the strong blower signal loading means 96 and amplifying the output of the strong blower signal loading means 96. This blower amplification means 97 is connected to a blower storage means 103 for storing the output of the blower signal loading means 92 via a blower mutual reset means 102.
3 stores the output of the cut-off blower storage means 104 for storing the output of the cut-off blower load means 93, the automatic blower storage means 105 for storing the output of the automatic blower signal load means 94, and the output of the open blower signal load means 95. It is composed of a weak blower storage means 106 for storing the output of the strong blower signal loading means 96 and a strong blower storage means 107 for storing the output of the strong blower signal loading means 96.

When any signal of the blower signal loading means 92 is re-inputted to any of the blower storage means 103, the previous memory is reset by the blower mutual reset means 102, and the mutual reset is performed by the strong blower storage means 107. .

A blower output buffer means 108 whose one end is grounded is connected to the blower storage means 103, and this blower output buffer means 108 is connected to the blower storage means 105 for automatic use.
The automatic blower output buffer means 109 is connected to the automatic blower output buffer means 109 , the weak blower output buffer means 110 is connected to the weak blower memory means 106 , and the strong blower buffer means 111 is connected to the strong blower memory means 107 . There is. Note that when the output of the cut-off blower storage means 103 is not used, the cut-off blower storage means 104 is stored as shown in the embodiment.
It is not necessary to provide an output buffer means corresponding to the above.

Further, a blower display means 112 is connected to the blower output buffer means 108.
is an automatic blower display means 1 consisting of a light emitting diode 19 connected to the output side of the automatic blower storage means 105.
13, and a low blower display means 114 consisting of a light emitting diode 22 connected to the output side of the low blower storage means 106.
and a high-power fan display means 115 consisting of a light emitting diode 16 connected to the output side of the high-power fan storage means 107.

Further, the blower output buffer means 108 is connected to a current variable means 116 that outputs a current corresponding to the output of the blower storage means 103 to the current detection means 55 of the vacuum cleaner body 1, and this current variable means 116 is configured to: Automatic current variable means 117 outputs an automatic current corresponding to the output of the automatic blower storage means 105; and weak current variable means 118 outputs an opening current corresponding to the output of the weak blower storage means 106. and a strong current variable means 1 that outputs a strong current corresponding to the output of the strong blower storage means 107
19, and these current variable means 116 are connected to the terminal A.

Further, the logic processing means 89 is connected to a motor signal load means 121 which generates a signal output corresponding to the motor opening/closing output from the motor opening/closing means 86 subjected to logic processing by the logic processing means 89. The load means 121 is composed of a cut-off motor signal load means 132 that sets the brush motor 9 to be turned off, and a drive motor signal load means 133 that sets the brush motor 9 to be driven.

Further, a motor amplification means 134 for amplifying the signal output from the motor signal load means 121 is connected to the motor signal load means 12+, and this motor amplification means +34
Cutting motor amplifying means 135 is connected to the cutting motor signal loading means 132 and amplifies the output of the cutting motor signal loading means 132; It is composed of drive motor amplification means 136 that amplifies the output. This motor amplification means 134 is connected to a motor storage means 138 via a motor mutual reset means 137, and this motor storage means 138 is connected to the cut-off motor signal load means 1.
32, and a drive motor memory means 140 that stores the output of the drive motor signal load means 133.

Then, when any signal from the motor signal load means 121 is re-inputted into any of the motor storage means 138, mutual reset is performed by the blower mutual reset means 137.

Cut-off motor storage means 139 of the motor storage means 138
includes a cut-off motor output buffer means 1 whose one end is grounded.
41 is connected. Note that the motor output buffer means is not connected to the drive motor storage means 140.

The blower display means 112 also includes a brush motor 9.
A motor display means 151 consisting of the light emitting diode 2g for displaying the drive of the brush motor 9 and an insulated transmission means 152 for controlling the brush motor 9 are connected in series and connected to the terminal A via a constant current means 155. This insulated transmission means 15
2 is a brush motor control means 153 that controls the electric power of the brush motor 9 according to the output of the insulated transmission means 152;
This brush motor control means 153 is connected to the control section 30 of the vacuum cleaner main body 1 via a terminal, and is also connected to one end of the brush motor 9 via a terminal F. The other end of the electric motor 9 is connected to the control section 30 of the vacuum cleaner main body 1 via terminals E and C.

Further, electric motor display means 151 and insulation transmission means 15
2, a motor display means 151 and an insulated transmission means 1
Bypass means 154 is connected to turn off the switching motor output buffer means 1.
41 is connected.

Further, the insulation transmission means 152 and the bypass means 15
The constant current means 155 for supplying a constant current is connected to the hand power source means 34 side of No. 4.

Further, a reset means 157 is connected to the logic processing means 89.

Furthermore, a protection means 156 whose one end is grounded to protect the hand control means 12 from surges and the like is connected to the terminal A, and the terminal B is grounded.

Next, a specific circuit of the above embodiment will be explained with reference to FIGS. 7 and 8.

This circuit is basically the same as the configuration described in Japanese Patent Laid-Open No. 64-64615.
A triac 162 which is a bidirectional control element of the power control means 53 of the control means 30 and the electric blower 2 are connected in series to D, and the triac 162 has a resistor 16 connected thereto.
Triac 1 consisting of 3 and 164 capacitors
62 protective snubber circuits 165 are connected. Furthermore, a noise prevention circuit 169 for noise prevention made of a capacitor is connected to the electric blower 2.

Further, the primary winding of a transformer 32 is connected to the commercial AC power supply 31, and a protective varistor 17 is connected in parallel to this secondary winding.
2 are connected. Further, a rectifying means 33 consisting of a diode bridge is connected to the secondary winding of this transformer 32, and a hand power source means 3 is connected to the DC output side of this rectifying means 33.
For example, a three-terminal regulator 181 for constant voltage of 12V is connected.

Further, a constant voltage means 3 is provided on the DC output side of the rectifying means 33.
5, for example, a 3-terminal regulator for constant voltage of 5V
182 is connected, and this three-terminal regulator 182 is connected to the central processing unit 36. Further, the rectifying means 33 is connected to terminals A and B, and a resistor 183 as a current detecting means 55 is connected between the terminal B and the negative electrode of the rectifying means 33.
6.

The three-terminal regulator 182 is connected to an inverting input terminal of an operational amplifier 185 as the constant voltage means 35, and a resistor 186 is connected to the non-inverting input terminal.

Further, a detection means 39 is connected between the output terminal of the operational amplifier 185 and the resistor 186, and this detection means 39 is made of a semiconductor such as silicon diffused, and equivalently consists of four resistors 187. 188. 189. It constitutes a resistor bridge consisting of 190 resistors. Among these, a variable resistor 191 as an offset gain for gain adjustment is connected between the resistor 187 and the resistor 188.
is connected to the non-inverting input terminal of the operational amplifier 193 of the amplifying means 40, the connection point between the resistor 189 and the resistor 190 is connected to the inverting input terminal of the operational amplifier 193 via a resistor, and a resistor is connected between the inverting input terminal and the output terminal. It is connected. Also,
The operational amplifier 1 is connected to the normal input terminal of this operational amplifier 193.
A resistor 195 is connected from the inverting input terminal of 85 to the output terminal of an operational amplifier 194 that constitutes a voltage follower circuit.
is connected. Further, the output terminal of the operational amplifier 193 is connected to the inverting input terminal of the operational amplifier 196 via a resistor, and the non-inverting input terminal is connected to the output terminal of the operational amplifier 194 via a resistor. A resistor 197 and a semi-fixed resistor 198 for amplification adjustment are connected between the inverting input terminal and the output terminal of the operational amplifier 193, and the output terminal is connected to the central processing unit 36 and to the negative terminal of the rectifying means 33. has been done.

Further, the emitter of an NPN type transistor 200 of the initializing means 42 is connected to the three-terminal regulator 182, and the base of this transistor 200 is connected to the central processing unit 36. Further, the rectifying means 3
3 is connected between the base and emitter of a PNP transistor 199 of the zero cross detection means 43. Further, the collector of this transistor 201 is connected to the central processing unit 36.

Furthermore, a light emitting means 54 of the display means 44 is connected between the three-terminal regulator 182 and the central processing means 36. The light emitting means 54 includes a light emitting diode 201. which displays the amount of collected dust as shown in FIGS. 2 and 8. 20
2. 203. 204, and a light emitting diode 205 for displaying the setting modes of "strong", "automatic", and "weak" for the output of the electric blower 2. 206. 207, a light emitting diode 208 for displaying the demo mode, and a light emitting diode 209 for displaying the power meter output of the electric blower 2.
210. 211. 212. 213 are connected in parallel through respective resistors. Furthermore, between the three-terminal regulator 182 and the central processing means 36,
PNP type transistor 2 constituting the sound generation driving means 46
The base of the transistor 215 is connected to the collector of the transistor 215, and a sounding means 47 such as a buzzer of the display means 44 is connected to the collector of the transistor 215.

Further, a switch 48 of a set input means 59 is connected to the central processing unit 36. Further, a clock oscillator 216 is connected to the central processing unit 36.

Further, a light emitting diode 260 of the output control means 52 is connected from the central processing unit 36, and this light emitting diode 2
60 is electrically insulated and connected to a phototriac 261 by photocoupling, and the phototriac 261 is connected to a connection point between the triac 162 and the electric blower 2 via the gate of the triac 162.

Next, a specific circuit of the hand control means 12 will be explained with reference to FIG.

This circuit is also basically the same as the configuration described in the above-mentioned Japanese Patent Application Laid-Open No. 64-64615, with a Zener diode 220 and an electrolytic capacitor 2 connected in parallel between terminals A and B.
A protection means 156 consisting of 21 is connected.

Terminal A is connected to each of a cut-off blower signal load means 93, an automatic blower signal load means 94, an open-use blower signal load means 95, and a strong blower signal load means 96, each of which is a load resistor having a noise prevention capacitor in parallel. One end is connected. Then, the cut-off blower signal load means 93 and the automatic blower signal load means 'j! 1294, between the other end of each load resistor of the open blower signal load means 95 and the strong blower signal load means 96 and the terminal B, there are a cut blower opening/closing means 82 and an automatic blower opening/closing means 83, which are normally open contacts. , a weak blower opening/closing means 84 and a strong blower opening/closing means 85 are connected.

Further, terminal A is connected to one end of a cutting motor signal load means 132 consisting of a load resistor having a capacitor for noise prevention in parallel, and a drive motor signal load means 133 consisting of a load resistor having a capacitor for noise prevention in parallel. It is connected. Normally open contacts 87 and 88 are connected between the other ends of the cutting motor signal loading means 132 and the driving motor signal loading means 133 and terminal B, respectively.

231 and 232 are integrated circuits (ICs), and these ICs
231 and 232 are a blower amplification means 227, a blower mutual reset means 232, a blower storage means 103, a blower output buffer means 108, a motor amplification means 134, a motor mutual reset means 137, a motor storage means 138, and a motor output buffer means 241. It has a function. The ICs 231 and 232 are connected to the connection point between the cut-off blower signal loading means 93 and the cut-off blower opening/closing means 82, the automatic blower signal loading means 94, and the automatic blower opening/closing means 8.
3, the connection point between the low blower signal load means 95 and the low blower opening/closing means 84, the strong blower signal load means 9
6 and the strong blower opening/closing means 85 are connected to each other, and the connection point between the cutting motor signal loading means 132 and the cutting motor opening/closing means 87 is connected to the driving motor signal loading means 1.
33 and the drive motor opening/closing means 88 are respectively connected to terminals of the IC 232. Also, IC
The terminal of IC 231 and the terminal of IC 232 are connected.

Furthermore, a diode 235 is connected between the connection point of the cut-off blower opening/closing means 82 and the cut-off blower signal load means 93 and the connection point of the cut-off motor opening/closing means 87 and the cut-off motor signal load means 132. A diode 236 is connected between the connecting point of the automatic blower opening/closing means 83 and the automatic blower signal loading means 94 and the connecting point of the driving electric motor opening/closing means 88 and the driving blower signal loading means 133, and the diode 235 and the diode 236 This constitutes the logic processing means 89.

Connected to the terminals of the IC 231 are an automatic blower display means 113 consisting of a light emitting diode 19, a low blower display means 114 consisting of a light emitting diode 22, and a strong blower display means 115 consisting of a light emitting diode 16. 19.22 is a light emitting diode 249 as a motor display means 151 and an insulated transmission means 152
is connected to the light emitting diode 250 of. Furthermore, a phototriac 251 is photocoupled to the light emitting diode 250 of the insulated transmission means +52.

This phototriac 251 is connected to the motor control means 153.
The TRIAC 252 is connected to one end and the gate of the TRIAC 252. The triac 252 is connected to the vacuum cleaner main body 1 via a terminal, and is also connected to one end of the brush electric blower 9 via a terminal F.

A resistor 253 as the strong current variable means 119 and a resistor 25 as the weak current variable means 118 are connected to the terminals of the IC 232.
4 is connected. Note that in this embodiment, the automatic current variable means 117 is not specially provided, and the automatic current variable means 11
7, the light emitting diode 16 of the automatic blower display means 113 is used.

Further, a PNP type transistor 255 having a bias resistance between the base and emitter of the bypass means 154 and having an emitter and collector connected to both ends of a light emitting diode 249 is connected to the terminal of the IC 232 .

Furthermore, two so-called constant current diodes 256 are connected in parallel to the anode of the light emitting diode 250 and the emitter of the transistor 255. A constant current means 155 consisting of a transistor 257 and a transistor driving resistor 258 connected in parallel to the constant current means 155 are connected.

Next, the operation of the above embodiment will be explained.

First, when the power is turned on, the voltage of the commercial AC power supply 31 is stepped down by the transformer 32, rectified by the rectifier 33, and then made constant by the constant voltage means 35.
The contents of the central processing unit 36 are initialized.

Further, the voltage is made constant by the handheld power supply means 34 and outputted to the handheld control means 12 via the transmission line. Then, when the commercial AC power supply 31 has a phase angle of 0° or 18o0, the zero cross detection means 43 detects a voltage of zero volts, inputs the output of the current detection means 55, and outputs it to the A/D conversion means 65 via the switching means 64. Then, the output current values are averaged and stored in the temporary storage means 68. When it is determined that this current value is set to "strong", the trigger time of the triac 162 is set to a value corresponding to the "strong" output, and when it is determined that this current value is set to "weak", the triac 162 is set to a value corresponding to the "strong" output.
The trigger time is set to a value corresponding to the "weak" output, and the triac 162 is not triggered when it is determined that it is set to "off".

Further, when it is determined that the setting is automatic, the average value of the output voltage from the air path detection means 37 is set, this average value is compared with the data in the data storage means 67, and the arithmetic processing means 72 calculates the output voltage. Process. Then, the output control means 52 outputs a trigger according to each set triac trigger time.

In addition, in the hand control means 12, for example, when setting the output of the electric blower 2 to "strong", a strong operation button 15 is used.
, the strong blower opening/closing means 85 is activated, the strong blower signal loading means 96 is activated, and the strong blower amplifying means 10 is activated.
1, the previous memory is reset by the blower mutual reset means 232 and stored in the strong blower storage means 237. Then, the constant current output of the constant current means 275 causes the strong light emitting diode 16 of the hand operation unit 126 to be activated.
is lit, and the power meter of the vacuum cleaner main body 1 is, for example, a light emitting diode 209. 210. 211.
212. 213 are all lit to indicate that it is "strong".

In addition, when the opening operation button 21 is operated, the electric blower 2 outputs a weak output, the opening light emitting diode 22 of the hand operation section 12 lights up, and the display panel 4 of the vacuum cleaner main body 1 lights up. The power meter lights only one light emitting diode 209 indicating "weak". Note that in this embodiment, the automatic current variable means 117 is not particularly provided, and the constant current means 1 is not provided.
Current detection means 55 detects the current set in step 55 and automatically sets the current.

When setting the output of the electric blower 2 to automatic, press the automatic operation button 18 to set it to automatic, and the hand operation section 1
As the automatic light emitting diode 19 of No. 2 lights up,
Light emitting diode 209 of the vacuum cleaner body 1. 210.
211. 212. 213 blinks in accordance with the output of the electric blower 2.

Further, when turning on the brush motor 9, when the operation button 26 of the drive motor opening/closing means 88 is closed, the drive motor signal load means 133 is activated and the automatic blower signal load means 94 is activated by the logic processing means 89. Activate. When the drive motor signal load means 133 operates, the drive motor signal is amplified by the drive motor amplification means 136, and the drive motor memory means 14 is amplified by the motor mutual reset means +37.
0 to drive the brush motor 9, reset the memory contents of the cut-off motor storage means 139, stop the base current of the transistor 255 of the bypass means 154, and brush the current bypassed by the bypass means 154. A light emitting diode 29 indicating that the electric motor 9 is driving and a light emitting diode 2 of the insulated transmission means 152
Run to 50. Note that this light emitting diode 29 and the insulated transmission means 1521. Alternatively, the current flowing through the bypass means 154 is made constant by the constant current means 155 and always takes a constant current value. Then, the photo-coupled photo triac 251 is turned on, turning on the triac 252, and driving the brush motor 9. Moreover, the electric blower 2 is driven in an automatic state by driving the automatic blower signal load means 94.

On the other hand, when turning off the brush motor 9, the operation button 28 of the cut motor opening/closing means 86 is closed, and the cut motor signal load means 132 is activated. When the cut-off motor signal load means 132 operates, the cut-off motor signal load means 132 amplifies it, and the motor mutual reset means 102 stores in the cut-off motor storage means 139 that the brush motor 9 is to be turned off, and the drive motor The memory contents of the memory means 140 are reset, and the output buffer means 1 for the cutting motor is
41 and the transistor 2 of the bypass means 154
The light emitting diode 29 and the insulated transmission means 15 provide a base current to the light emitting diode 29 to indicate that the brush motor 9 is being driven.
The current flowing through the second light emitting diode 250 is bypassed by the bypass means 154. Then, the insulated transmission means 1
The light emitting diode 250 of 52 is turned off, the photo triac 251 is not triggered, the triac 252 is turned off, the brush motor 9 is turned off, and the light emitting diode 25G is turned off to display that the brush motor 9 is turned off. do.

When the cut operation button 24 is pressed, the cut blower opening/closing means 82 is operated, the cut blower signal load means 93 is operated, and the cut motor signal load means 132 is operated by the logic processing means 89.

As a result, the electric blower 2 stops and the brush motor 9 also stops, and the display means 44 indicating the drive of the electric blower 2 also displays the light emitting diode 2 indicating the drive of the brush motor 9.
9 is also turned off.

Further, if clogging or the like occurs, the sound generation driving means 46 drives the sound generation means 47.

In addition, by switching the set input key 49, the switch 48
When the output of the electric blower 2 is switched, the output of the electric blower 2 is switched between "strong" and "weak" during normal times and during nighttime. Further, if the set input key 49 is switched a set number of times, for example, three times, within a certain period of time, for example, 5 seconds after the power is turned on to the control means 30, the demo mode identification means 71 identifies the demo mode. , the display opening/closing means 76 is operated by the display output means 73, and the light emitting diode 2 of the display means 44 is activated.
01 to 213 are flashed according to the set program.

According to the above embodiment, the operating current in the hand control means 12 is used to flow through the insulated transmission means 152 or bypassed to the bypass means 154, so that the brush motor can be operated without greatly changing the operating current. 9 can be controlled. Furthermore, the constant current means 155
Also when driving the light emitting diode 29, the bypass means 15
By keeping the current value constant during the drive of the brush motor 4, the signal current does not change whether the brush motor 9 is in use or not, eliminating reading errors in the current detection means 55, allowing the electric blower 2 to be driven accurately. Since the current is constant, the light emitting diode 16. Even if there are variations in 19.22, etc., the brightness can be kept constant. Moreover, the manual control means 1 does not directly control the power source of the brush motor 9.
Since the brush motor 9 is controlled by the second operating current, the configuration is easy.

Further, the drive display of the brush motor 9 is provided by the manual control means 12.
Since an operating current of 1 is used, the configuration can be simplified.

Next, the operation of the demo mode program will be explained with reference to FIG.

In this embodiment, the routine is such that the demo mode can be set only during a set period of time within a certain period of time after the power is turned on.

When the power supply 31 is turned on, the central processing means 36 is initialized by the initializing means 42 (step 2). Next, a demonstration mode check is performed (step 3), and the conditions set by the handheld control means 12 are read based on the current detection means 55 (step 4). Next, the set input by the set input key 49 is read (step 5), and further the input from the sensor output means 41 is read (step 6). Then, the demo mode identification means 71 of the central processing unit 36 identifies whether or not the mode is in the demo mode.Step 7) If it is determined that the mode is not the demo mode, it is further determined whether the mode is set to other than automatic.Step 8) If it is determined that it is not set to automatic, it is determined whether it is set to automatic (step 9), and if it is not set to automatic, it is determined that it is off and processing is performed (step 10).
. Then, if it is determined that it is demo mode in step 7,
Demo display automatic operation means 7 in advance with the demo mode program
A demonstration display is performed at the steps stored in the storage means 67 at 0 (step 11). In addition, if it is determined in step 8 that the setting is not automatic, the electric blower 2 is operated with an output that is strong or weak depending on each setting condition (
If it is determined in step 12) and step 9 that the setting is automatic, the electric blower 2 is outputted according to the output of the air path detection means 37 (step 13).

A light emitting diode 201 for displaying the amount of dust collected on the display means 44. 202. 203. 204 is lit in response to the output of the air path detection means 37 (step 14), and a light emitting diode 205. 206.20
7 are selectively illuminated, and the power meter display of the output of the electric blower 2 is displayed using light emitting diodes 209, 210,
211. 212. 213 is turned on (step 15). Then, the conditions set by the handheld control means 12 are read based on the current detection means 55 (step 5).The light emitting diode 205 displays the output setting mode of the electric blower 2 from the operation. 206 and 207 are turned on, and the light emitting diode 209. which displays the output of the electric blower 2 on a power meter. 210°2+(,212,
213 is turned on (step 15), and this operation is repeated.

The operation of the demo mode will be explained with reference to FIG.

The initializing means 42 checks whether or not the demo mode check has been completed in step 17). If the demo mode check has not been completed, it is determined whether a certain period of time has passed since the power was turned on or not (step 18). If it is within a certain period of time, it is determined whether or not the set input key 49 has been switched (step 19); if it is determined that the set input key 49 has been switched, the number of switching is counted in the storage means 69 (step 2θ); When the storage means 69 determines that the set input key 49 has been switched a set number of times (step 21), the demo mode is set (step 23).
), the demo mode check completion flag is lit (step 2).
3). And when the demo mode check end flag goes off,
In the return step (step 25) shown in FIG. 10, the process goes to manual input reading step 4.

Further, when it is determined in step 17 that the demo mode check has been completed, the process proceeds to the return stage (step 24), and when it is determined in step 18 that a predetermined time has elapsed, the process proceeds to step 23, and in step 21, the set input key 49 is pressed. When it is determined that the set input key 49 has not been switched the set number of times, and when it is determined in step 19 that the set input key 49 has not been switched, the process returns to step 18.

Next, other embodiments will be described.

In this embodiment, the demo mode identifying means 71 identifies the demo mode by switching the set input key 49 a set number of times within a certain period of time from the start of the operation of the set input key 49. The operation of the demonstration display automatic operation means 70 is started by switching the set input key 49 a set number of times within a certain period of time from the start of the operation.

This effect will be explained with reference to FIG.

With this configuration, the demo mode input can be input at any time regardless of the time elapsed since the power was turned on.

The main chart for this configuration is the initial settings (step 2)
Next, the conditions set by the handheld control means 12 are read based on the current detection means 55 (step 3).

Next, the set input by the set input key 49 is read (step 4), and further the input from the sensor output means 41 is read (step 5). At this stage, the demo mode is checked (step 6), and the demo mode identification means 71 of the central processing unit 36 identifies whether or not it is the demo mode (step 7). is the same as

The operation will be explained with reference to FIG. 13 using the flowchart of the demo mode.

Check whether the demo mode check has been completed or not (Step 17). If the demo mode check has not been completed, check whether the set input key 49 has been switched or not (Step 18). If it is determined that the set input key 4 has been
A certain period of time set from the start of the operation in step 9, for example, 5 to 6.
Step 19) to determine whether seconds have elapsed; if it is within the set time, count the number of switching steps (Step 20);
When it is determined that the number of switches of the set input key 49 is the set number (step 21), the demo mode is set (step 22), and the demo mode check end flag is set (step 21).
Step 23). When the demo mode check end flag is set, the process goes to manual input reading step 3 in the return step shown in FIG.

Further, when it is determined in step 18 that the set input key cannot be switched, the process proceeds to a return step (step 24);
If it is determined in step 19 that the predetermined time has elapsed,
The demo mode tick end flag is set in step 23, and if it is determined in step 21 that the number of switches of the set input key 49 is not the set number, the process returns to step 18.

Next, other embodiments will be described.

In this embodiment, the demo mode identifying means 71 identifies the demo mode by switching the set input key 49 a set number of times at pitches within a predetermined range. The operation of the demonstration display automatic operation means 70 is started by performing the switching operation a set number of times at a pitch of .

The main flowchart of this configuration is the 12th
This is the same as the chart shown in FIG. 14, and the operation will be explained with reference to FIG. 14 using a flowchart of the demonstration mode.

Check whether the demo mode check has been completed or not (Step 17). If the demo mode check has not been completed, check whether the set input key 49 has been switched or not (Step 18). If it is determined that the set input key 4 has been
A certain period of time set from the start of the operation in step 9, for example, 5 to 6.
Step 19) to determine whether seconds have elapsed, and if it is within the set time, determine whether the pitch time is within a set range, for example, 0.5 seconds to 2 seconds (Step 2)
0), when it is determined that the pitch time is within a certain range, it is counted whether the pitch has been switched a set number of times.Step 21).When it is determined that the pitch has been switched a set number of times, for example, three times (step 22), the demo mode is set. (Step 23), and the demo mode check end flag is set (Step 24).

Then, when the demo mode check end flag goes off, the 12th
Manual input reading step 3 with the return step shown in the figure
go to.

Also, when it is determined in step 18 that the set input key cannot be switched, the process proceeds to the return step (step 25).
If it is determined in step 19 that the predetermined time has elapsed, and if it is determined in step 20 that the pitch time is not within the fixed range set, the demo mode check end flag is set in step 24, and the demo mode check end flag is set in step 22. If it is not determined that the number of switches of the set input key 49 is not the set number, the process returns to step 18.

Still other embodiments will be described.

The configuration of this embodiment is such that the demo mode identifying means 71 switches the set input key 49 to the demo mode by switching the set input key 49 at a pitch within a preset range a set number of times within a predetermined period of time after the power is turned on to the control means 30. Something that identifies
The operation of the automatic demonstration display operation means 70 is started by switching the set input key 49 at a pitch within a predetermined range a set number of times within a certain period of time after power is turned on to the control means 30.

And the main flowchart of this configuration is the 10th
As shown in the figure, the operation of the demo mode will be explained with reference to FIG.

The initializing means 42 checks whether or not the demo mode check has been completed in step 17). If the demo mode check has not been completed, it is determined whether a certain period of time has passed since the power was turned on or not (step 18). If it is within a certain period of time, it is determined whether the set input key 49 has been switched (step 19), and when it is determined that the set input key 49 has been switched, it is determined whether the switching pitch time is within the set range (step 20). When it is determined that the switching pitch time is within the set range, the number of switching is counted (step 21), and when it is determined that the switching has been performed the set number of times (step 22), the demo mode is set (step 23), and the demo mode is set (step 23). The mode check end flag is lit (
Step 24). Then, as soon as the demo mode check end flag is set, the process goes to the manual input reading step 4 in the return step shown in FIG.

Further, when it is determined in step 17 that the demo mode check has been completed, the process proceeds to the return stage (step 25), and when it is determined that the predetermined time has elapsed in step 18,
Demo mode check end flag lights up (step 24)
When it is determined that the set input key 49 cannot be switched (step 18), when it is determined that the switching pitch time is outside the set range (step 20), and when it is determined that the set input key 49 cannot be switched the set number of times (step 22)
Then, return to step 18.

In each of the embodiments described above, the period of time from the power-on of the control means 3G of the demo mode identification means 71 includes the period of time from the initial setting.

〔Effect of the invention〕

According to the invention of claim 1, by setting the demonstration mode, the display means can perform a demonstration operation at the time of exhibition without driving the electric blower, that is, the display means can display the contents stored in advance, and the exhibition effect can be improved. Moreover, the demo mode can be set using the set input key provided on the vacuum cleaner, and no special input means are required. Since the identification is performed within a limited set time and according to the set number of times, malfunctions can be prevented, and this can be done by software operation on the circuit, and does not require a complicated circuit configuration.

According to the invention of claim 2, the demo mode input operation can be performed at any time, and the operability is improved without considering the timing of turning on the power such as connecting the power plug. Since it is distinguished from the demo mode, there is no risk of S malfunction.

According to the third aspect of the present invention, since the input of the demo mode is identified as the demo mode by the number of operations of the set input key and the number of switching pitches, there is no possibility of malfunction.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a vacuum cleaner showing an embodiment of the present invention;
FIG. 2 is a front view showing the same permission control section, FIG. 3 is a front view of the display panel of the above display means, FIG. 4 is a block diagram of the above control section, and FIG. 5 is a block diagram showing the same central processing unit. , FIG. 6 is a block diagram showing the hand control section, FIG. 7 is a circuit diagram of the main body of the vacuum cleaner, FIG. 8 is a circuit diagram of the display means, and FIG. 9 is a circuit diagram of the hand control section. 10 is the main flowchart of the above, FIG. 11 is the input flowchart of the demo mode, FIG. 12 is the main flowchart showing another embodiment, FIG. 13 is the input flowchart of the demo mode, and FIG. 14 is the input flowchart of the demo mode. The first example shows another example.
Figure 3 is the input flowchart of the same demo mode, No. 15.
The figure is a demo mode input flowchart showing still another embodiment. 2. Electric blower, 30. Control means, 44. Display means, 49. Set input key 170. Demonstration display operation means, 71. Demo mode identification means.

Claims (3)

[Claims] (1) A set input key forming a dust collecting section, having an electric blower, and having a control means for controlling the output of the electric blower, and setting the input of the electric blower to an arbitrary characteristic; and the electric blower. display means for displaying amounts to be reported, such as a controlled amount of output, a detected amount of pressure or air volume in the intake/exhaust flow path, and an amount of dust in the dust collecting section, and the display means is configured to display information to be displayed in advance. It has a demonstration display automatic operating means that stores the steps and operates the display means to display a demonstration, and the control means is configured to control the switching operation of the set number of times using the set input key within a certain period of time after power is turned on to the control means. , a vacuum cleaner comprising demo mode identification means for identifying demo mode, and operating the demo display automatic operation means by switching the set number of times of the set input key. (2) a set input key forming a dust collecting section, having an electric blower, and having a control means for controlling the output of the electric blower, and setting the input of the electric blower to an arbitrary characteristic; and the electric blower. display means for displaying amounts to be reported, such as a controlled amount of output, a detected amount of pressure or air volume in the intake/exhaust flow path, and an amount of dust in the dust collecting section, and the display means is configured to display information to be displayed in advance. It has a demonstration display automatic operating means that stores the steps and operates the display means to display a demonstration, and the control means is configured to switch the set input key a set number of times within a predetermined time from the start of operation of the set input key in a demo mode. and a demo mode identification means for identifying the set input key, and the demo display automatic operation means is operated by switching the set input key a set number of times within a predetermined period of time from the start of operation of the set input key. Vacuum cleaner. (3) a set input key forming a dust collecting section, having an electric blower, and having a control means for controlling the output of the electric blower, and setting the input of the electric blower to an arbitrary characteristic; and the electric blower. display means for displaying amounts to be reported, such as a controlled amount of output, a detected amount of pressure or air volume in the intake/exhaust flow path, and an amount of dust in the dust collecting section, and the display means is configured to display information to be displayed in advance. A demo display automatic operating means stores the steps and operates the display means to display a demo, and a demo mode identification means identifies the operation of switching the set input key a set number of times according to a set pitch within a predetermined range as a demo mode. A vacuum cleaner, characterized in that the demonstration display automatic operation means is operated by switching the set input key a set number of times at a pitch within a predetermined range.