JPS6476818A - Electric cleaner - Google Patents
Electric cleanerInfo
- Publication number
- JPS6476818A JPS6476818A JP62234231A JP23423187A JPS6476818A JP S6476818 A JPS6476818 A JP S6476818A JP 62234231 A JP62234231 A JP 62234231A JP 23423187 A JP23423187 A JP 23423187A JP S6476818 A JPS6476818 A JP S6476818A
- Authority
- JP
- Japan
- Prior art keywords
- motor
- display device
- positive characteristic
- becomes large
- light emitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Electric Vacuum Cleaner (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
PURPOSE: To visually confirm the operation state of a motor by a display device by providing a switching device for controlling the speed of the motor, the display device for making a display form be different corresponding to the changeover of the switching device and the display device for displaying the operation state of the motor. CONSTITUTION: When a changeover switch 8 is turned to the side of a contact point (a), a power source 1 is half-wave-rectified by a diode 9 and the motor 3 is weakly operated. In a state that the changeover switch 1 is turned to one of the contact points (a) and (b), in the case that a large cloth or the like for instance gets entangled in a rotary brush, it is stopped and thus the motor 3 is locked, a current made to flow to the motor 3, that is the current made to flow to a positive characteristic thermister 4, becomes large and the resistance value becomes extremely large by self heat generation. Thus, the terminal voltage of the positive characteristic thermister 4 becomes large, a light emitting diode 15 is lighted, the terminal voltage of a resistor 5 becomes extremely small relatively and the light emitting diodes 13 and 14 are put off. When the resistance value of the positive characteristic thermister 4 becomes large, the current of the motor 3 is suppressed and a safe state is attained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62234231A JPS6476818A (en) | 1987-09-18 | 1987-09-18 | Electric cleaner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62234231A JPS6476818A (en) | 1987-09-18 | 1987-09-18 | Electric cleaner |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6476818A true JPS6476818A (en) | 1989-03-22 |
Family
ID=16967746
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62234231A Pending JPS6476818A (en) | 1987-09-18 | 1987-09-18 | Electric cleaner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6476818A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03244421A (en) * | 1990-02-22 | 1991-10-31 | Akai Electric Co Ltd | Constraint protecting device of rotary brush driving electric motor in electric cleaner |
JPH03244422A (en) * | 1990-02-22 | 1991-10-31 | Akai Electric Co Ltd | Constraint protecting device of rotary brush driving electric motor in electric cleaner |
-
1987
- 1987-09-18 JP JP62234231A patent/JPS6476818A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03244421A (en) * | 1990-02-22 | 1991-10-31 | Akai Electric Co Ltd | Constraint protecting device of rotary brush driving electric motor in electric cleaner |
JPH03244422A (en) * | 1990-02-22 | 1991-10-31 | Akai Electric Co Ltd | Constraint protecting device of rotary brush driving electric motor in electric cleaner |
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