JPS62106736A - Electric cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a vacuum cleaner, and includes an on-off display A3 and a control 2II indicating the degree of lifting of a dust suction electric blower built into the vacuum cleaner body. Concerning display control.

[Conventional technology]

Conventional vacuum cleaners of this type are equipped with an electric blower control section on the hand operation section on the tip side of the suction hose connected to the main body, and the control knob of this control section is located at the control position. Correspondingly, control 6 [1ff] with on-off display
A structure was adopted in which a display was formed using a letter or a figure indicating "i".

[Problem that the invention seeks to solve]

In the above-mentioned conventional vacuum cleaner, the electric blower on/off display and the display indicating the degree of control are formed on the control operation section of the electric blower installed on the hand operation section at the end of the hose, so the display area is reduced. The space is small, and the display is small and difficult to see, making it difficult to confirm whether the vacuum cleaner itself is operating as controlled by the control unit.

The present invention has been developed in view of the above-mentioned problems, and the on-off display for each electric blower and the degree of control filtration can be easily checked on the display provided on the relatively large display area of the vacuum cleaner body. To provide an electric h-removal machine which can be used as is without affecting the control circuit of a conventional electric blower of a vacuum cleaner, and which can provide stable display without display variation.

(Means for Solving the Problems) The electricity remover of the present invention has a dust collecting section formed in the vacuum cleaner body, a built-in electric blower, a control circuit for controlling the electric blower, and a control circuit for controlling the electric blower. The controller is equipped with a display that displays a control function according to a control state of the vacuum cleaner, and a display circuit that controls the display according to an input signal, and a grip part of a hose that communicates with a dust collecting part of the vacuum cleaner body is provided with a display that displays a control function according to a control state of the vacuum cleaner. A control operation unit for controlling the circuit is provided, and the control circuit is connected in parallel to the electric blower with respect to the AC power supply, and a gate of the bidirectional thyristor and a first anode on the side of the gate are connected to the AC power supply. side 11, the second anode side electrode is connected to the AC power supply, the bidirectional thyristor is connected in series, and the conduction or non-conduction of the bidirectional thyristor is detected. A power supply means such as a bidirectional thyristor, a thyristor, or a transistor is provided to supply power to the display circuit and the display device only when conductive. The present invention is characterized in that an input signal corresponding to the voltage between the first anode side electrode and the power supply side of the electric blower is inputted to cause the display device to perform a display operation.

[Effect]

The vacuum cleaner of the present invention has a control circuit that controls an electric blower by adjusting a variable resistance value using a knob or the like with a control operation section at the end of a hose connected to a vacuum cleaner body in communication with a dust collection section. When the point of action on the bidirectional thyristor is adjusted and controlled, and the electric blower is controlled by the control circuit, the electric blower is driven by the conduction of the bidirectional thyristor, and the conduction and non-conduction of the bidirectional thyristor are detected. Power is supplied to the display circuit and display unit by the power supply means only when continuity is established,
An input signal corresponding to the control angle of the bidirectional one thyristor according to the voltage between the first anode side electrode of the bidirectional thyristor and the power supply side of the electric blower is input to the display circuit via the power supply means. and the display performs a display operation according to the control state.

〔Example〕

The configuration of an embodiment of the present invention will be explained with reference to FIGS. 1 to 3. FIG.

In FIG. 2, reference numeral 10 denotes a vacuum cleaner body, which houses an electric blower 11 shown in FIG. 1 and a control circuit 12 for controlling the speed of the electric blower 11. A dust collection case 13 forming a dust collection section in which a filter is removably mounted is removably attached. A suction port 15 is opened at the front of the dust collection case 13 to which a suction hose 14 is detachably inserted. A connecting pipe portion 16 is provided at the base end of the hose 14 and is connected to the suction port 15 by insertion, and this connecting pipe portion 16 is electrically connected to a connector (not shown) provided adjacent to the suction port 15. A connection plug (not shown) is provided to be connected to.

Further, at the tip of the hose 14, a hand-operated handle 17 is integrally provided, into which an extension tube or the like can be inserted and connected in a detachable manner.

A guide Fi 18 is formed in the grip portion 17 of the hose 14 along the longitudinal direction of the grip portion 17, as shown in FIG. A control operation knob 19 is slidably provided in the guide groove 18. Also, the control 2I! A display section 20 for displaying control details is formed on the grip section 17 along a guide groove 18 that is a movement range of the operation knob 19. The display 21 of the display section 20 is, for example, a display corresponding to off, 1.2.3.4, automatic, such as off, low, medium, standard, and strong, and this display 21 corresponds to the control of the control operation knob 19. The speed control display of the electric blower 11 is adjusted according to the position.

The control operation knob 19 has a sliding piece that is inserted into the guide groove 18 so as to be movable (three times) into the inside of the grip part 17, and the lower end of this sliding piece is attached to the inside of the grip part 11. The slider of the variable resistor 22 of the control operation section shown in FIG. The resistance value of the variable resistor 22 is changed to change the speed control signal, and the variable resistor 22 is connected to the connecting plug via a conductor in the hose 14.

Further, a display 23 is provided on the upper surface of the L1 remover main body 10, and this display 23 has a light emitting diode 24.25°2.
G, 27.28 are arranged in a straight line.

As illustrated in FIG. A protective resistor 32 and a capacitor 33 are connected in series in parallel with each other as a snubber circuit.

Further, a connection point of a diode 34.35 of the control circuit 12 connected in parallel with the electric blower 11 to the AC power source 30 is connected to the gate of the bidirectional thyristor 31. 530 via a resistor 36. This rectifier circuit 37 consists of diodes 38, 39, 40
．． A constant voltage circuit 44 consisting of a resistor 42 and a Zener diode 43 is connected to this rectifier circuit 37.

Further, the control circuit 12 is connected to the rectifier circuit 37 via a switch 47 and the variable resistor 322 connected in series, which is provided on the hose 14 and forms a control operating section 46, via a resistor 42 and a safety resistor 45. There is. This system ■ 1 circuit 1
2 has a capacitor 49 connected to the variable resistor 22 via a safety resistor 48, and a resistor 42.2 serving as a charging resistor.
45, variable resistor 22, resistor 48 and capacitor 49
A time constant circuit 50 for triggering the gate of the bidirectional thyristor 31 is formed, and the anode side electrode of the PUT 51 is connected to the connection point between the resistor 48 and the capacitor 49 of the time constant circuit 50. Also this PIJT51
Resistors 52 and 53 connected in series to the connection point between the resistor 42 of the constant voltage circuit 44 and the Zener diode 43 are connected to the gate of the resistor 52 and the Zener diode 43.
connection points are connected. Further, the gate of a thyristor 55 is connected to the cathode side electrode of the PUT 51 via a resistor 54, and this thyristor 55 is connected to the rectifier circuit 37.
The diodes 34 and 35 are connected to the resistor 56 and the thyristor 55 in parallel. Furthermore, a resistor 57 is connected to the cathode side electrode of this thyristor 55. Further, the diode 34.
35 is connected to the first anode side electrode of the bidirectional thyristor 31 via a resistor 58.

Further, 59, 60, and 61 are noise prevention capacitors of the electric blower 11.

Note that the control operation knob 1 of the variable resistor 22 of the hose 14
The automatic position 9 is an automatic switch that automatically controls the suction force using a sensor, and the 4M configuration of the mouth is omitted.

Further, 62 is a bidirectional 1 Noisrisk power supply means that detects a set reference voltage when the bidirectional thyristor 31 is conductive and supplies power to the display device 23 and the display circuit 63;
The first anode side electrode of the bidirectional thyristor 31 is connected to the gate of this bidirectional thyristor 62 via a resistor 64, and further connected to the second anode side electrode of the bidirectional thyristor 62 of this power supply means. A connection point between the second anode side electrode of the bidirectional bone thyristor 31 and the AC power source 30 is connected.

Furthermore, the light emitting diodes 24, 25, 26 of the display 23
27 and 28 are connected in series, and the control by the control circuit 12 is indicated by a strip-shaped lighting.

The display circuit 63 connects the display 23 to the control circuit 1.
Comparator 65 configured with an IC circuit consisting of an operational amplifier and a transistor that is controlled according to the input signal No. 2.
．． 66, 67, 68 (manufactured by Toshiba Corporation) Nparator T
A75339).

The light emitting diode is connected between the first anode side electrode of the bidirectional thyristor 62 of this power supply means and the power supply side of the electric blower 11 via a power supply circuit 72 consisting of a diode 69 and a resistor 70. 24°25, 26,
27, 28 are connected in series, and series-connected resistors 74, 75, 76, 77, and 78 are connected in parallel from the connection point between the diode 69 and the resistor 70 of this power supply circuit 72, and each of these resistors 74, 75 The comparator 65..76, 77, and 78 are connected to each connection point. The negative terminal sides of G6.67 and 68 are connected, and the series connected resistors 74.75.76 and 77
, 78 are connected in parallel to each other, and a power supply Zener diode 80 is connected in parallel to the display circuit 63 between the first anode side electrode of the bidirectional thyristor 62 of the power supply means and the power supply side of the electric blower 11. A diode 82 and resistors 83 and 84 forming a circuit 81 are connected, and a capacitor 85 is connected in parallel with this resistor 84.
3.84 from the connection point to the comparator 65° GG,
One pole side of 67 and 68 is connected, and this comparator 6
The output sides of 5.6(i, 67, 68 are connected to the connection points of the light emitting diodes 24, 25, 26, 27, 28, respectively. And this comparator 65.6G,
The comparison voltage of 67°68 is connected in series with the resistor 74.75.
It is determined by the dividing resistance ratio of 76 and 77.78.

In this way, the display device 23 and the display circuit 63 are connected to the control circuit 12.
The control circuit 12 can be connected to the control circuit 12 by connecting only two places, the first and second anode side electrodes of the bidirectional thyristor 31 and one place on the power supply side of the electric blower 11.

Next, the operation of this embodiment will be explained.

II ■ Grip part 17 of the hose 14 connected to one tree removal machine
When cleaning by grasping, the control operation knob 19 is pressed depending on the area to be cleaned, such as a carpet, a sofa, a curtain, etc.
When moved in the longitudinal direction of the grip part 17, the variable resistor 2
The resistance value of the electric blower 11 is changed, the speed control signal input to the control circuit 12 is changed, and the speed of the electric blower 11 is adjusted and controlled. Further, the control state of the electric blower 11 according to the resistance value of the variable resistor 22 can be confirmed and determined by the display 21 of the display section 20 formed on one side of the movement position of the control operation knob 19.

When the switch 47 is turned on by operating the control knob 19 of the grip 17 of the hose 14, the AC power source 30 is full-wave rectified by the rectifier circuit 37, and the voltage regulated by the Zener diode 43 is passed through the safety resistor 45. , the amount of charge is controlled by the variable resistor 22, the switch 47, and the safety resistor 48, and the amount of charge is applied to the capacitor 49, and the capacitor 49 is charged. When the voltage across the capacitor 49 reaches the reference voltage set by the resistor 52.53, the PtJT 51 turns on, and the charges in the four capacitors are discharged from the anode side electrode of the PUT'51 to the cathode side electrode. A trigger current flows from the cathode side electrode to the gate of the thyristor 55, and the thyristor 55 is turned on. When this thyristor 55 turns on, the rectifier circuit 37
6. Current flows through the thyristor 55, and the electric blower 11
, bidirectionality 4) - A current flows from the first anode side 1 of the iristor 31 to the diode 39 of the diode 3.1, the resistor 56, the thyristor 55, and the rectifier circuit 37. When the polarity of the AC power source 30 is reversed, the rectifier circuit 3
7 diode 38, resistor 56, anode side electrode of Lee iris thyristor 55, diode 35, bidirectional thyristor 3
Current flows through the second anode-side lightning bolt of the induction thyristor 11, and the bidirectional thyristor 31 turns on reliably even if the current state is oscillating, and the current continues to flow until the terminal voltage drops. Even if the electric blower 11 is used, the bidirectional thyristor 31 is reliably triggered.

When the resistance of the variable resistor 22 changes by operating the control knob 19 of the grip part 17 of the hose 14, the charging cycle of the capacitor 49 changes as a speed control signal, and the timing of turning on the PUT 51 changes. , the rotation speed of the electric blower 11 is changed.

Furthermore, the bidirectional thyristor 31 short-circuits the gate of the bidirectional thyristor 62 of the power supply means and the second 7 node side electrode.
2 is turned on, and this bidirectionality (Neurister 62, diode 69, resistor 70.71, light emitting diode 24.
25.26.27.28 or power supply means bidirectional thyristor 62, diode 82, resistor 83, Zener diode 80 for power supply, and resistor 74, 75.76
, 77, 78, the AC power supply 30 is applied to the power supply circuit 72,
The display 23 and display circuit 63 are operated. A diode 82 and a resistor 83 of the input detection circuit 81 of the display circuit 63
．． 84, the capacitor 85 has bidirectional power supply means according to the voltage across the electric transmitter 11. The input horn is detected via the Iristaro 2, and when the control amount of the control circuit 12 is at the maximum, the detected voltage is also becomes the maximum, and comparator 65.
6G and G7.68 are all turned off, and all light emitting diodes 24, 25, 26, 27, and 28 are lit.

Further, when the control amount of the control circuit 12 is the minimum, the detected voltage is also the minimum, the comparators 65, 66, 67, and 68 are all turned on, and only the light emitting diode 24 is lit. In this way, the comparison voltages of the comparators 65, 66, 67, and 68 are determined by the dividing resistance ratio of the resistors 74, 75, 76, 77, and 78, and when the input is in the middle, the comparison voltage is determined according to the control voltage. Comparators 65, 66, 67, 68 are turned off, and light emitting diodes 24. ．． 25.26.27
．． 28 is lit in a band shape.

Since the display 23 lights up over a large area on the upper surface of the cleaner main body 10, the on/off display of the electric blower 11 and the consistency of the control amount can be easily confirmed.

In this way, the display circuit 63 is activated by the conduction of the bidirectional cyrisk 62 of the power supply means, the display 23 is activated, and the switch 47 is not opened by the control operation knob 19 of the hand operation grip 17 of the hose 14. As long as no current flows through the gate of the bidirectional thyristor 62 of the power supply means, even if the AC power supply 30 is applied to the vacuum cleaner body 10 side, the display 23 and the power circuit 72 of the display circuit 63 are in the off state, and no light is emitted. The diodes 24, 25, 26, 27, 28 are not lit, which saves power and makes it easier to check the display.
Since the input detection circuit 81 detects from the first J3 and second anode side electrodes of the bidirectional thyristor 31 of the power supply element ``)'', the operation is more stable than when the input detection circuit 81 detects directly from both Ω2 of the electric blower 11. hro.

Next, the configuration of another embodiment will be explained with reference to FIG.

In the configuration shown in FIG.
A configuration using Cyrisk 88 in place of the configuration will be described with the same parts as the configuration shown in FIG. 1 omitted.

Electric blower 11 and road control circuit 1 for AC power supply 30? The first anode side electrode on the gate side of the bidirectional thyristor 31 connected to is connected in series to the electric blower 11 side, and the first anode electrode of the bidirectional thyristor 31 and the gate of the thyristor 88 of the power supply means are connected in series. is connected through a resistor 64 and a diode 89, and the second
The cathode side electrode of a thyristor 88 as a power supply means is connected to the connection point between the anode side electrode and the AC power source 30, and the cathode side electrode of the thyristor 88 and the electric blower 11
Power is supplied to the display device 23 and the display circuit 63 from the power supply terminal side of the display circuit 63, and an input signal corresponding to the voltage between the first anode electrode of the thyristor 88 and the power supply side of the electric blower [11] is supplied to the display circuit 63. The signal input to the display circuit 63 is used to light up the display 23. Note that a game (compensator) is connected between the gate of the thyristor 88 of the power supply means and the anode side electrode of the thyristor 88. Resistor 9
0 is connected, and the diode 69 of the power supply circuit 72 is omitted.

In the configuration of this embodiment, the thyristor 88 serving as the power supply means has higher sensitivity than the bidirectional thyristor 62, and this thyristor 88 functions as a power rectifying diode. Also, since the thyristor 88 is bidirectional, it can be obtained at a lower cost than the thyristor 2.

The structure of another embodiment will be briefly described with reference to FIG.

The product 1 of this embodiment is as follows in the configuration shown in FIG.
The structure uses a transistor 91 in place of the bidirectional thyristor 62 as a power supply means for the display 23 and the display circuit 63, and will be described with the same parts as those shown in FIG. 1 omitted.

The first anode side electrode on the gate side of the bidirectional thyristor 31 connected to the electric blower 11 and the control circuit 12 with respect to the AC power source 30 is connected in series to the electric blower 11 side. A resistor 64. The emitter side electrode of the transistor 91 of the power supply means is connected to the connection point between the second anode side electrode of the bidirectional thyrisk 31 and the AC power source 30 via the diode 93, and this Power is supplied to the display 23 and the display circuit 63 from the collector electrode of the transistor 91 and the power supply terminal side of the electric blower 11, and the collector electrode of the transistor 91 and the power supply side of the electric blower 11 are supplied to the display circuit 63. An input signal corresponding to the voltage between is input, and the signal input to the display circuit 63 causes the display
It's Otsu who skips lighting 3. In addition, the power supply 1 stage 1-
A capacitor 95 is connected between the base and emitter side electrodes of the transistor 91, and this capacitor 95 allows the control angle and the response of the power supply of the display 23 and the display circuit 63 to be made close, depending on the degree of phase control of the bidirectional thyristor 31. Display 23
This reduces the influence of the power waveform of the display circuit 63.

(Effects of the Invention) According to the present invention, a control circuit is connected to an AC power source in parallel with an electric blower, and a gate of a bidirectional thyristor is connected to the AC power source, and a first anode side of the bidirectional thyristor is connected to the AC power source. A bidirectional thyristor is connected in series by connecting an electrode and a second anode side electrode to the control circuit, the electric blower, and the AC power source, respectively, and detecting conduction or non-conduction of the bidirectional quantity thyristor. A power supply means for supplying power to the display device and the display circuit only when conductive is provided, and the display circuit is provided with a power supply means for supplying power to the display device and the display circuit in response to the voltage between the first anode side electrode of the bidirectional cyrisk and the power supply side of the electric blower. The input signal is inputted through the power supply means to operate the display provided on the vacuum cleaner body, so that the display input can be displayed in accordance with the control angle of the bidirectional thyristor.
This display pano] is not input directly from both ends of the electric feeder III, but is input via the power supply means, so there is no variation in the display and the display is stable. The display that shows the degree of control of the electric blower can be made to a size that is easy to check, and by using the conventional control circuit as is, the display circuit and display can be used as a control circuit without causing noise or unstable operation. , and no current flows to the display while power is not applied to the control circuit.
It is something that can generate electricity.

[Brief explanation of drawings]

Fig. 1 is a 131 perspective view of an electric (excluding η) circuit diagram showing an embodiment of the present invention; Fig. 2 is a perspective view of the same electric vacuum cleaner; 4 and 5 are circuit diagrams of vacuum cleaners in different embodiments, respectively. 10. Vacuum cleaner body, 11. Electric blower, 12.
-Control circuit, 13...Dust collection case of dust collection unit, 23...Display device, 30...AC power supply, 31...Bidirectional thyristor, 62...Bidirectional thyristor of power supply means, 63
・Display circuit, 88 ・Power supply means glue, 9
1...Transistor for power supply means. 1 November 5, 1960

Claims (1)

[Claims] (1) A dust collection part is formed in the main body of the vacuum cleaner, and a control circuit that controls the electric blower is built in, a display that displays the control amount according to the control status of this control circuit, and this display. A display circuit for controlling the control circuit according to an input signal is provided, a control operation section for controlling the control circuit is provided in a grip of a hose connected to a dust collection section of the vacuum cleaner body, and the control circuit is connected to an AC power supply. The gate of the bidirectional thyristor, the first anode side electrode on the gate side, and the second anode side electrode are connected to the control circuit and the electric blower in parallel to the electric blower. , power supply means connecting bidirectional thyristors in series by connecting them to the alternating current power supply, detecting conduction or non-conduction of the bidirectional thyristors, and supplying power to the display circuit and the display only when the bidirectional thyristors are conductive; and inputting an input signal corresponding to the voltage between the first anode side electrode of the bidirectional thyristor and the power supply side of the electric blower to the display circuit via the power supply means to cause the display to perform a display operation. A vacuum cleaner characterized by: