JPS5861719A - Control apparatus of 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] The present invention is a semiconductor pressure sensor! This invention relates to a control device for a vacuum cleaner that dynamically controls suction force (motor power) by sensing the clogging state of a dust collection filter and the state of a floor surface to be cleaned.

Conventionally, vacuum cleaners have been proposed in which the C motor power is controlled by a variable resistor moving on a diaphragm.
There are many mechanical parts, and it is difficult to centrally install electrical parts.
Along with this, there was a drawback that the wiring spoon also became flimsy.

The present invention has been made in view of the above drawbacks.

A drive circuit including a thyristor etc. that drives the fan motor with an operation switch, a control circuit that controls the output of the fan motor by sensing with a pressure can semiconductor output sensor in front of the dust collection filter, and multiple indicator lamps. Since it is configured with an output display circuit that displays the output of the fan motor, for example, when the dust collection filter becomes clogged, the fan motor power is increased in response to a constant suction force Y. If the floor suction device is used for cleaning etc.
The operability of power cleaning can be improved 7 times. At the same time, it is possible to provide a vacuum cleaner that is easier to use than ever before, as the fan motor power is increased and the vacuum cleaner can be visually checked with the dawang ya' indicator lamp.

Embodiments of the present invention shown in the drawings will be described below.

fll is a vacuum cleaner body with adjustable wheels (21, rear wheels +31 +31 on both sides of the rear) attached to the front of the bottom. 5) and fan motor t61 Y Stored fan motor chamber +71, exhaust chamber (8) and cord reel (9)
) Electrical equipment room stored in an inclined state (divided into 101 rl,
The bag opening of the scraped plastic bag-shaped dust collection filter (4) is connected to the suction port passage formed at the front of the dust collection chamber (5). This is a floor suction device, which is connected to the air intake passage OD through a flexible hose (151 yen valve) with a telescopic tube 03) and a touch-type remote control switch +141V.

Then (on the 1st), the flexible synthetic resin vibrator 071 sensed the pressure of the first group of suction passages and detected the output of the fan motor (6). The semiconductor pressure sensor controls the pressure and various electrical components! Equipped with printed circuit board 0711
It is disposed between the q-slanted cord reel (9) in the electrical equipment room (]0) and the side wall of the main body (1). , the vibrator 1171 is the upper surface side opening (18) of the intake port passage (old)
The connection tube 0 of the flexible hose 09 faces the long notched hole (20) formed in the front side.

Next, the electric circuit shown in FIG. 5 will be explained along with its operation.

(21) is an alternating current source, tsu is a power supply circuit, and 3) is a drive including a fan motor (thyristor 124 that drives 61) by opening and closing of the touch-type remote control switch 04). [! 1st path, (251 is the control circuit that detects the change in the former city of the dust collection filter (4) with the all-semiconductor ffjj jancer (16) and controls the output of the +1lTJ fan motor (6), 1st row is the cleaning water spray (rice + 1 IO) multiple (7) LED lamps arranged in an inclined manner on the top surface I: 47
11771... is the output of n M fan motor 161? This is an output display circuit for displaying.

Delete J Picode! 1-Plug the plug (9) into the AC power supply II
Connect to the @ touch type remote @ operation switch 1141',
r Grip with hand “C Close and touch rc (78+ output is H
Since I G )4η1 falls to LOW, the transistor C
29( is turned ON, the photocoupler C (01 light emitting diode CiD is also turned on, and ゛C light receiving transistor + ('J is also ON.
Tru. Therefore, the timing capacitor and PU
TC(41+2 is charged again and the current is repeated and the current is passed through the pulse transformer (to) Y to the thyristor 1241'f-) m
Since V flows, the thyristor 1241 is conductive and the fan motor (61) also rotates.
The timing of N is determined by the feedback voltage (power applied to both ends of the resistor).

Also, PUT [with] anode 1il! When the peak is higher than the gate electron, conduction occurs, so each electron waveform is shown in Figure 6 (a).
and (b) become immediate.

The semiconductor pressure sensor 0 senses the static pressure (differential pressure from atmospheric pressure) in the intake passageway ++11 from the vibe 0, so the static pressure increases when the air volume is large.

Also, if you block the suction port of the floor suction tool O2 at the tip of the suction port passage (Old 1), the absolute pressure of 3 between the suction port and the fan motor 16) will decrease, so the difference between the pressure and the 7 pressure ( degree of vacuum) increases.

Therefore, the conduction angle of thyristor 1241 when the dust filter (4) is not clogged! When the temperature is set to about 100 ° ( becomes small, and the output of the semiconductor pressure sensor 0 mark becomes small.Therefore, the output of the amplifier (9) also becomes small, and the resistance (
Since the feedback chamber applied to both ends of the thyristor (c24) becomes smaller, the charging voltage to the timing capacitor a1 becomes higher, the conduction angle of the thyristor c24) becomes larger, and the effective voltage applied to the fan motor (6) increases. Its output increases. Therefore, even if the dust collecting filter (4) becomes clogged, a certain amount of suction continues.

Next, regardless of how clogged the dust filter (4) is, when the floor suction tool 021 adsorbs to the carpet, the degree of vacuum increases, the output of the semiconductor power sensor +161 increases, and the timing capacitor (to) is charged. Since the pressure is lowered, the conduction angle becomes smaller. As a result, the output of the fan motor (6) is reduced, and the floor suction JZ, which was stuck in place, can now be moved smoothly.

These conditions are caused by the fan motor (61 m tube power,
The relationship between the amount of dust and the degree of closure of the floor suction tool 021! This is clear from the characteristic diagrams of Fig. 7 (A1 and (Low) shown in Fig.
This is displayed by lighting up the lamp.

As described above, the control device for a vacuum cleaner according to the present invention uses a semiconductor ratio sensor to detect the clogging state of the dust collection filter and the state of the floor surface to be cleaned, and purposefully controls the suction force of the fan motor. Therefore, as the filter becomes clogged, the -C motor power can be increased accordingly to maintain a certain amount of suction, and when cleaning the carpet etc. down,
In addition to improving the operability of cleaning, you can immediately visually check the power fluctuation status.

Therefore, it would be possible to provide an economical and easy-to-use vacuum cleaner in which the motor power is controlled dynamically depending on the condition of the floor surface to be cleaned due to clogging of the filter.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a vacuum cleaner according to the present invention in use, Fig. 2 is a perspective view of the main body of the vacuum cleaner, Fig. 3 is a cross-sectional plan view of the main part of Fig. 2, and Fig. 4 is a perspective view of the vacuum cleaner in use. Figure 3 is an explanatory cross-sectional view of the main part of the pressure sensing system path in 3, Figure 5 is the main electrical circuit diagram, and Figure 6 (A1 and (L) are timing capacitors, PL
The IT and thyristor voltage waveform diagrams in FIGS. 7(a) and 7(b) are characteristic diagrams comparing the relationship between the power consumption of the fan motor and the degree of closure of the dust collection groove and the floor suction device compared to the conventional one. (1)...Vacuum cleaner body (4)...Dust filter (61...Fan motor 041...Touch type a+i operation switch 1161...Semiconductor pressure sensor...Drive circuit C24+・
・Thyristor r, '51...Control 1 route ■
...Output display 1!2 circuit ζ17Jr17J...
LED lamp (indicator lamp) Fig. 4 1 Meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiy ay!” Name ■ [Devacuum cleaner control device 6, person making the amendment Patent applicant address 2-18 Keihan Hondori, Moriguchi City Name (188) Sanyo Electric Co., Ltd. Representative Kaoru Iue 4 Agent address Moriguchi Type Keihan Hondori No. 2, No. 18, 5 Date of amendment order (shipment date) February 26, 1981 6 Engraving of the specification and drawings subject to amendment (Montsuri 1 Kuaiq v5 L)
7.4 Yamamasa's contents IIIl'1 and 3

Claims (1)

[Claims] 1) A drive circuit including a thyristor, etc., which operates the fan motor by an operation switch, and a semiconductor pressure sensor that senses the pressure in front of the dust collection filter, and outputs the fan motor. and a control circuit to control. A control device for a vacuum cleaner, characterized in that it comprises an output display circuit that displays the output of the fan motor using a plurality of display lamps.