JPS6255172U - - Google Patents
Info
- Publication number
- JPS6255172U JPS6255172U JP14743785U JP14743785U JPS6255172U JP S6255172 U JPS6255172 U JP S6255172U JP 14743785 U JP14743785 U JP 14743785U JP 14743785 U JP14743785 U JP 14743785U JP S6255172 U JPS6255172 U JP S6255172U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic plate
- impeller
- rotation speed
- detection device
- fan
- 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 5
- 230000005484 gravity Effects 0.000 claims 1
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
Description
第１図はこの考案の実施例の回転数検出装置を
備えるフアンの側面図、第２図は従来の回転数検
出装置を備えるフアンの側面図である。
１……フアン、２……羽根車、５……回転数検
出装置、５１……磁性板、５２……パルス発出器
、５３……検出器、５５……バランサー（非磁性
板）。
FIG. 1 is a side view of a fan equipped with a rotation speed detection device according to an embodiment of this invention, and FIG. 2 is a side view of a fan equipped with a conventional rotation speed detection device. DESCRIPTION OF SYMBOLS 1... Fan, 2... Impeller, 5... Rotation speed detection device, 51... Magnetic plate, 52... Pulse generator, 53... Detector, 55... Balancer (non-magnetic plate).
Claims (1)
、磁界を形成し前記磁性板が羽根車と共に回転し
て磁界を通過する度に電圧パルスを発生するパル
ス発生器と、前記電圧パルスを計数し回転数とし
て表示する検出器とを備えたフアン回転数検出装
置において、前記羽根車の前記磁性板取付位置と
対称位置に、磁性板と略同一比重で同一形状の非
磁性板を取付けたことを特徴とするフアンの回転
数検出装置。 A magnetic plate attached to the outer periphery of the impeller of the fan, a pulse generator that forms a magnetic field and generates voltage pulses each time the magnetic plate rotates together with the impeller and passes through the magnetic field, and a pulse generator that counts the voltage pulses. In a fan rotation speed detection device equipped with a detector that displays the rotation speed, a non-magnetic plate having substantially the same specific gravity and the same shape as the magnetic plate is attached at a position symmetrical to the magnetic plate attachment position of the impeller. Features a fan rotation speed detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14743785U JPS6255172U (en) | 1985-09-27 | 1985-09-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14743785U JPS6255172U (en) | 1985-09-27 | 1985-09-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6255172U true JPS6255172U (en) | 1987-04-06 |
Family
ID=31060794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14743785U Pending JPS6255172U (en) | 1985-09-27 | 1985-09-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6255172U (en) |
-
1985
- 1985-09-27 JP JP14743785U patent/JPS6255172U/ja active Pending
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