JPS61185259U - - Google Patents
Info
- Publication number
- JPS61185259U JPS61185259U JP6831385U JP6831385U JPS61185259U JP S61185259 U JPS61185259 U JP S61185259U JP 6831385 U JP6831385 U JP 6831385U JP 6831385 U JP6831385 U JP 6831385U JP S61185259 U JPS61185259 U JP S61185259U
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- rotating machine
- magnetic pole
- machine according
- utility
- 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 7
- 238000010586 diagram Methods 0.000 description 3
Description
第１図はこの考案の一実施例による回転数検出
装置が備えられた回転機の半断面側面図、第２図
ａはマグネツトの磁極分布図、第２図ｂはマグネ
ツトの形状を示す図、第３図はパルス波形図、第
４図は従来の回転数検出装置が備えられた回転機
の半断面側面図である。
図において、３はシヤフト、９はマグネツト、
１０はホール素子である。なお、各図中同一符号
は相当部分を示す。
Fig. 1 is a half-sectional side view of a rotating machine equipped with a rotation speed detection device according to an embodiment of the invention, Fig. 2a is a diagram showing the magnetic pole distribution of the magnet, and Fig. 2b is a diagram showing the shape of the magnet. FIG. 3 is a pulse waveform diagram, and FIG. 4 is a half-sectional side view of a rotating machine equipped with a conventional rotation speed detection device. In the figure, 3 is the shaft, 9 is the magnet,
10 is a Hall element. Note that the same reference numerals in each figure indicate corresponding parts.
Claims (1)
ツトが固着され、このマグネツトの近接部に空隙
を有して磁極検出手段が設けられ、上記シヤフト
が回転することによつて、マグネツトからの磁極
を上記磁極検出手段によつて検出するよう、回転
機の内部に備えられていることを特徴とする回転
機の回転数検出装置。 (2) 磁極検出手段は、ホール素子であることを
特徴とする実用新案登録請求の範囲第(1)項記載
の回転機の回転数検出装置。 (3) 磁極検出手段は、磁気抵抗素子であること
を特徴とする実用新案登録請求の範囲第(1)項記
載の回転機の回転数検出装置。 (4) マグネツトは、シート状のマグネツトがシ
ヤフトに巻回されていることを特徴とする実用新
案登録請求の範囲第(1)項ないし第(3)項の何れか
に記載の回転機の回転数検出装置。 (5) マグネツトは、塗布着磁されたものである
ことを特徴とする実用新案登録請求の範囲第(1)
項ないし第(3)項の何れかに記載の回転機の回転
数検出装置。 (6) マグネツトは、リング状のマグネツトがシ
ヤフトに挿入されていることを特徴とする実用新
案登録請求の範囲第(1)項ないし第(3)項の何れか
に記載の回転機の回転数検出装置。[Claims for Utility Model Registration] (1) A magnet is fixed to the circumference of a shaft that transmits rotational force, a magnetic pole detection means is provided with a gap in the vicinity of the magnet, and the shaft rotates. A rotation speed detection device for a rotating machine, characterized in that it is provided inside the rotating machine so that the magnetic pole from the magnet is detected by the magnetic pole detecting means. (2) The rotational speed detecting device for a rotating machine according to claim (1), wherein the magnetic pole detecting means is a Hall element. (3) The rotational speed detecting device for a rotating machine according to claim (1), wherein the magnetic pole detecting means is a magnetoresistive element. (4) The magnet is a rotating machine according to any one of claims (1) to (3) of the utility model registration claim, characterized in that the magnet is a sheet-shaped magnet wound around a shaft. Number detection device. (5) Utility model registration claim No. (1) characterized in that the magnet is coated and magnetized.
A rotation speed detection device for a rotating machine according to any one of paragraphs to (3). (6) The magnet is the rotation speed of the rotating machine according to any one of claims (1) to (3) of the claims for utility model registration, characterized in that a ring-shaped magnet is inserted into the shaft. Detection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6831385U JPS61185259U (en) | 1985-05-09 | 1985-05-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6831385U JPS61185259U (en) | 1985-05-09 | 1985-05-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61185259U true JPS61185259U (en) | 1986-11-19 |
Family
ID=30602950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6831385U Pending JPS61185259U (en) | 1985-05-09 | 1985-05-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61185259U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02243964A (en) * | 1988-11-18 | 1990-09-28 | Mitsubishi Motors Corp | Rotating speed sensor and motor-driven type actuator equipped with rotating speed sensor |
-
1985
- 1985-05-09 JP JP6831385U patent/JPS61185259U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02243964A (en) * | 1988-11-18 | 1990-09-28 | Mitsubishi Motors Corp | Rotating speed sensor and motor-driven type actuator equipped with rotating speed sensor |
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