JPS62187237U - - Google Patents
Info
- Publication number
- JPS62187237U JPS62187237U JP7426586U JP7426586U JPS62187237U JP S62187237 U JPS62187237 U JP S62187237U JP 7426586 U JP7426586 U JP 7426586U JP 7426586 U JP7426586 U JP 7426586U JP S62187237 U JPS62187237 U JP S62187237U
- Authority
- JP
- Japan
- Prior art keywords
- light
- receiving element
- emitting element
- dirt
- filter
- 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
- 238000001514 detection method Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Ventilation (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Description
第１図は本考案の一実施例によるフイルター汚
れ検知装置の回路図、第２図は同フイルター汚れ
検知装置のレンジフードへの取付状態断面図、第
３図は従来のフイルターの汚れを確認する状況図
である。
１……発光素子、２……受光素子、３……フイ
ルタ、４……検知回路。
Fig. 1 is a circuit diagram of a filter dirt detection device according to an embodiment of the present invention, Fig. 2 is a cross-sectional view of the same filter dirt detection device installed in a range hood, and Fig. 3 shows a conventional filter for checking dirt. This is a situation diagram. 1... Light emitting element, 2... Light receiving element, 3... Filter, 4... Detection circuit.
Claims (1)
受光し、その受光量に応じて流れる電流が変化す
る受光素子と、前記発光素子からの光を反射させ
て前記受光素子に受光させる位置に配設された空
気の汚れをとるフイルターと、前記受光素子の出
力信号により、汚れ検知信号を出力する検知回路
とからなるフイルター汚れ検知装置。 A light-emitting element, a light-receiving element that receives light emitted from the light-emitting element and whose current flows changes depending on the amount of the received light, and a light-receiving element arranged at a position that reflects the light from the light-emitting element and causes the light-receiving element to receive the light. A filter dirt detection device comprising a filter installed to remove dirt from the air, and a detection circuit that outputs a dirt detection signal based on an output signal of the light receiving element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7426586U JPS62187237U (en) | 1986-05-16 | 1986-05-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7426586U JPS62187237U (en) | 1986-05-16 | 1986-05-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62187237U true JPS62187237U (en) | 1987-11-28 |
Family
ID=30919319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7426586U Pending JPS62187237U (en) | 1986-05-16 | 1986-05-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62187237U (en) |
-
1986
- 1986-05-16 JP JP7426586U patent/JPS62187237U/ja active Pending
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