JPS6162433A - 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 [Object of the Invention] The present invention relates to an improvement in a vacuum cleaner for general household use. A conventional vacuum cleaner to be improved by the present invention will be described with reference to FIGS. 2 and 4. In FIG. 4, reference numeral 1 denotes an electric blower connected to an AC power source 8 in series with a bidirectional thyristor 2. The resistor and capacitor 5 constitute a snubber circuit for the bidirectional thyristor 2. 6, whose primary winding 6a is an AC power source 8
transformer connected to the switch 7, whose secondary winding 6b is connected to the
By short-circuiting the voltage generated in the tertiary winding 6c, the voltage generated in the tertiary winding 6c is inputted to the gate of the bidirectional thyristor 2 via the diode 8.9 connected in antiparallel to control the drive on the simulating blower. ing. These control devices are housed in the main body 11 (FIG. 2) of the vacuum cleaner, and the switch 7 is connected to the upper end of the extension pipe 18 of the floor nozzle 12 and the suction hose 1.
4 as a hand switch, and the main body 11
The connection between the control device housed inside the switch 7 and the switch 7 is made by a connection a1 buried in the outer covering of the suction hose 14.
0 (FIG. 4).

However, in the conventional structure described above, the switch 7 is provided at the joint between the suction hose 14 and the extension pipe 18;
There is a possibility that the connection will be poor. .

That is, the joint between the suction hose 14 and the extension pipe 18 is likely to be contaminated by dust, and the i rHl of the switch 7:
Resistance: When the hill τ becomes large, the control (!1rJ of the j11 circuit) becomes unstable. Furthermore, if a hose or the like absorbs moisture when the switch is turned off, the stray capacitance between the lines may increase and cause malfunction. In addition, there is a problem with the elasticity of the suction hose 14, and under such usage conditions, low voltage and
In order to create a hand-held switch that can accurately open and close minute currents, advanced mechanical technology is required. An object of the present invention is to provide a vacuum cleaner that eliminates these problems.

[Structure of the Invention] The vacuum cleaner of the present invention is a vacuum cleaner equipped with an electric feeder whose drive is controlled by a bidirectional thyristor controlled by optical coupling of a photocoupler consisting of a light emitting element and a light receiving element. In the machine, an optical fiber cable for optical coupling of the photocoupler is embedded in the outer coating of the suction hose, and an optical switch for opening and closing the optical coupling of the optical fiber cable is provided at the tip of the suction hose. do.

The embodiment will be described below with reference to FIGS. 1 to 3. In FIG. 1, reference numeral 21 denotes an electric blower, which is connected in series with a bidirectional thyristor 22 to an AC power source 20. In FIG. Resistor 28 and capacitor 24 constitute a snubber circuit for bidirectional thyristor z2. Z5a is a light emitting element (photodiode), 25b is a light receiving element, and these constitute a photocoupler 25. The photodiode 25a is connected to the AC power source 20 via a resistor 27t, together with a parallel-connected diode 26 for preventing reverse voltage.

Light emitting element Z5b is connected between the gate of bidirectional thyristor 22 and AC power supply 20 via resistor 28.

Optical fiber cables 29a and 29b that optically couple the light emitting element 25a and the light receiving element 25b have an optical switch (hand switch) 30 in the upper middle, and when the optical switch 80 is turned on, the light from the light emitting element 25a is transferred to the light receiving element 25b with a λ beam , the light receiving element 25b becomes conductive and turns on the bidirectional thyristor 22.

All the above control devices are housed in the main body 11 of the vacuum cleaner (Fig. 2), and are connected to the optical fiber cable Z9as 29b.
is embedded in the outer jacket of the suction hose 14. The optical switch 30 (hand switch) connects the suction hose 14 and the extension pipe 1.
It is provided at the joint part with 8. The optical switch 80 includes a direct shielding type (a) and a reflector shielding type (b) as shown in FIG. The direct slow-closing model (A) can block (switch off) the optical path shown by the point break by driving the slow-closing plate 31 in the direction of the arrow, and the slow-closing reflector type (1) has a reflector 32 and the optical fiber cable 29a. , 29b is connected to the delay closing plate 31.
Open and close by.

[Effects of the Invention] As described above, the vacuum cleaner of the present invention uses the electric contact switching type switch, which was used as a hand switch in conventional vacuum cleaners, as the original switch, thereby achieving the above-mentioned advantages of the electric contact switching type switch. It eliminates the disadvantages of optical switches and enjoys the advantages of optical switches. Both the direct blocking type and the reflector blocking type optical switches are simpler in f14 construction and operate more reliably than electrical contact opening/closing switches. Still, the original fiber cable is not only easier to incorporate into the suction hose than gold If44a, but also has the effect of properly adjusting its stretchability and elasticity.

[Brief explanation of drawings]

Fig. 1.2 Electrical circuit diagram of the vacuum cleaner of the present invention. Fig. 2: Overall perspective view of the vacuum cleaner of the present invention and the conventional vacuum cleaner. Fig. 3. , (B) is a reflective plate shielding type Figure 4: Electrical circuit diagram of a conventional vacuum cleaner 11...Main body, 12...Floor nozzle, 13...Extension tube, 14...
Suction hose, 20--AC power source, 21--electric blower, 22--bidirectional thyristor, 28--resistor,
z4...; Ndensa, 25... Photocoupler, 25
a... Light emitting element, 25b... Light receiving element, 26...
Diode, 27.28...Resistance, 29a, 29
b - optical fiber cable, 80... optical switch,
31...Slow closing plate, 32...Reflector plate Figure 1') 5 Figure 2 Figure 7 (Conventional) Hit, P! mouth (i) (., horse 4
figure

Claims (1)

[Claims] In a vacuum cleaner equipped with an electric blower whose drive is controlled by a bidirectional thyristor controlled by optical coupling of a photocoupler consisting of a light emitting element and a light receiving element,
An electric cleaning device characterized in that an optical fiber cable for optical coupling of the photocoupler is embedded in the outer covering of the suction hose, and an optical switch for opening and closing the optical coupling of the optical fiber cable is provided at the tip of the suction hose. machine