JPS6422228A - Dust detector of electric cleaner - Google Patents
Dust detector of electric cleanerInfo
- Publication number
- JPS6422228A JPS6422228A JP18043787A JP18043787A JPS6422228A JP S6422228 A JPS6422228 A JP S6422228A JP 18043787 A JP18043787 A JP 18043787A JP 18043787 A JP18043787 A JP 18043787A JP S6422228 A JPS6422228 A JP S6422228A
- Authority
- JP
- Japan
- Prior art keywords
- blow quantity
- components
- suction blow
- frequency
- suction
- 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.)
- Granted
Links
Landscapes
- Electric Vacuum Cleaner (AREA)
- Filters For Electric Vacuum Cleaners (AREA)
Abstract
PURPOSE: To constantly provide stable display in accordance with suction blow quantity by changing a set frequency of a filter part in accordance with change of dust passing speed by the suction blow quantity. CONSTITUTION: In an air passage in which dust flows, dust flows speedily through the passage when suction blow quantity is large, and slowly when not. As the suction blow quantity is larger, therefore, more components on the high zone side are included in frequency components of an output signal Vs of a light receiving part 2. On the contrary, as the suction blow quantity is smaller, more components on the low zone side are included in the frequency components of the output signal Vs . Action of a cut-off frequency setting part 5 is changed accordingly. By setting the cut-off frequency higher for the larger blow quantity, and lower for the smaller blow quantity, frequency components to similar dust only in accordance with the suction blow quantity are constantly included to an output Vd from a filter part 3. The output Vd from the filter part 3 can thus be of stable components to correspond to the suction blow quantity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18043787A JPH0728844B2 (en) | 1987-07-20 | 1987-07-20 | Dust detection device for vacuum cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18043787A JPH0728844B2 (en) | 1987-07-20 | 1987-07-20 | Dust detection device for vacuum cleaner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6422228A true JPS6422228A (en) | 1989-01-25 |
| JPH0728844B2 JPH0728844B2 (en) | 1995-04-05 |
Family
ID=16083225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18043787A Expired - Fee Related JPH0728844B2 (en) | 1987-07-20 | 1987-07-20 | Dust detection device for vacuum cleaner |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0728844B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5454730A (en) * | 1993-03-18 | 1995-10-03 | Tozuka; Tadao | Plug-in connector |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101273766B1 (en) * | 2011-03-18 | 2013-06-12 | 경희대학교 산학협력단 | Device and method for detecting dust of vacuum cleaner |
-
1987
- 1987-07-20 JP JP18043787A patent/JPH0728844B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5454730A (en) * | 1993-03-18 | 1995-10-03 | Tozuka; Tadao | Plug-in connector |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0728844B2 (en) | 1995-04-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |