JP2011122943A5 - - Google Patents
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- JP2011122943A5 JP2011122943A5 JP2009280879A JP2009280879A JP2011122943A5 JP 2011122943 A5 JP2011122943 A5 JP 2011122943A5 JP 2009280879 A JP2009280879 A JP 2009280879A JP 2009280879 A JP2009280879 A JP 2009280879A JP 2011122943 A5 JP2011122943 A5 JP 2011122943A5
- Authority
- JP
- Japan
- Prior art keywords
- torque sensor
- shield member
- magnetic shield
- input shaft
- housing
- 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.)
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Description
請求項１の発明は、入力軸に加えられるトルクによる磁気的変化を検出する検出部が合成樹脂製ハウジング内に設けられてなるトルクセンサにおいて、少なくとも検出部の外周を覆う磁気シールド部材がハウジングと一体にモールドされてなるようにしたものである。 According to a first aspect of the present invention, there is provided a torque sensor in which a detection unit for detecting a magnetic change due to torque applied to the input shaft is provided in a synthetic resin housing, wherein the magnetic shield member covering at least the outer periphery of the detection unit is the housing. It is designed to be integrally molded.
請求項２の発明は、請求項１の発明において更に、前記入力軸を支持するベアリングが、前記磁気シールド部材の内周側に挿入されてなるようにしたものである。 According to a second aspect of the present invention, in the first aspect of the present invention, a bearing for supporting the input shaft is inserted into the inner peripheral side of the magnetic shield member.
（請求項１）
(a)入力軸に加えられるトルクによる磁気的変化を検出する検出部の外周を覆う磁気シールド部材が合成樹脂製ハウジングと一体にモールドされる。これにより、合成樹脂製ハウジングと一体にモールドされる磁気シールド部材により、例えば車載スピーカ等の外部磁界が検出部に及ぼすノイズを遮断し、検出部による検出エラーを低減できる。別部品の磁気シールド部材をハウジングの外周に固定して組立てる必要がなく、合成樹脂製ハウジング内に設けた検出部の耐ノイズ性を低コストで向上できる。
(Claim 1)
(a) A magnetic shield member that covers the outer periphery of the detection unit that detects a magnetic change due to torque applied to the input shaft is molded integrally with the synthetic resin housing. Thus, the magnetic shield member molded integrally with the synthetic resin housing can block noise exerted on the detection unit by an external magnetic field such as an in-vehicle speaker, and can reduce detection errors caused by the detection unit. There is no need to fix and assemble a separate magnetic shield member on the outer periphery of the housing, and the noise resistance of the detection portion provided in the synthetic resin housing can be improved at low cost.
（請求項３）
(c)入力軸のベアリングが磁気シールド部材の内周側に挿入された状態で、該磁気シールド部材とともにハウジングと一体にモールドされる。従って、磁気シールド部材が合成樹脂製ハウジングに対しベアリングを囲んで保護し、合成樹脂の射出圧力や熱収縮によるベアリングの変形を防止するものになり、ベアリングによる入力軸の支持精度を向上できる。
(Claim 3)
(c) The bearing of the input shaft is molded integrally with the housing together with the magnetic shield member in a state where the bearing of the input shaft is inserted on the inner peripheral side of the magnetic shield member. Accordingly, the magnetic shield member surrounds and protects the bearing with respect to the synthetic resin housing and prevents the deformation of the bearing due to the injection pressure or thermal contraction of the synthetic resin, and the support accuracy of the input shaft by the bearing can be improved.
Claims (5)
少なくとも検出部の外周を覆う磁気シールド部材がハウジングと一体にモールドされてなることを特徴とするトルクセンサ。 In the torque sensor in which a detection unit for detecting a magnetic change due to torque applied to the input shaft is provided in the synthetic resin housing,
A torque sensor, wherein a magnetic shield member covering at least the outer periphery of the detection unit is molded integrally with the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009280879A JP5508826B2 (en) | 2009-12-10 | 2009-12-10 | Torque sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009280879A JP5508826B2 (en) | 2009-12-10 | 2009-12-10 | Torque sensor |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2011122943A JP2011122943A (en) | 2011-06-23 |
| JP2011122943A5 true JP2011122943A5 (en) | 2012-09-20 |
| JP5508826B2 JP5508826B2 (en) | 2014-06-04 |
Family
ID=44286969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009280879A Active JP5508826B2 (en) | 2009-12-10 | 2009-12-10 | Torque sensor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5508826B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6031960B2 (en) * | 2012-11-20 | 2016-11-24 | 株式会社ジェイテクト | Steering device |
| JP6864885B2 (en) | 2016-09-20 | 2021-04-28 | 日立Astemo株式会社 | Steering device |
| CN111426415B (en) * | 2020-04-10 | 2020-11-24 | 蚌埠高灵传感***工程有限公司 | Sleeve pipe torque sensor monitoring data processing device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0381631A (en) * | 1989-08-24 | 1991-04-08 | Hitachi Powdered Metals Co Ltd | Rotary sensor |
| JPH04158232A (en) * | 1990-10-22 | 1992-06-01 | Mitsubishi Electric Corp | Strain gauge |
| JP2652313B2 (en) * | 1991-12-26 | 1997-09-10 | 株式会社ユニシアジェックス | Torque measuring device |
| JP5180483B2 (en) * | 2006-03-28 | 2013-04-10 | 本田技研工業株式会社 | Torque sensor manufacturing method |
| JP4648419B2 (en) * | 2008-03-03 | 2011-03-09 | 本田技研工業株式会社 | Magnetostrictive torque sensor, method of manufacturing magnetostrictive torque sensor, and vehicle steering apparatus |
-
2009
- 2009-12-10 JP JP2009280879A patent/JP5508826B2/en active Active
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