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Torque Detector and Steering System including the Torque Detector

A technology of torque detection and relative position, which is applied in measuring devices, torque measurement, force/torque/power measuring instruments, etc., and can solve problems such as intrusion

Active Publication Date: 2014-07-02
JTEKT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing torque detection device has the possibility of water intrusion into the device from between the magnetic collecting unit and the sensor housing

Method used

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  • Torque Detector and Steering System including the Torque Detector
  • Torque Detector and Steering System including the Torque Detector
  • Torque Detector and Steering System including the Torque Detector

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Embodiment Construction

[0037] The above and more features and advantages of the present invention can be understood from the following detailed description of the embodiments with reference to the accompanying drawings. In the accompanying drawings, the same components are labeled with the same reference signs.

[0038] Hereinafter, each embodiment of the present invention will be described with reference to the drawings.

[0039] Reference figure 1 The structure of the steering device 1 will be described.

[0040] The steering device 1 has a steering device main body 10, an auxiliary device 20, and a torque detection device 30. The steering device 1 has a structure as a dual gear assist type electric power steering device that assists the operation of the steering wheel 2 by the assist device 20.

[0041] The steering device main body 10 has a column shaft 11, an intermediate shaft 12, a pinion shaft 13, a rack shaft 14, a rack and pinion mechanism 15, two tie rods 16, and a rack housing 17. The steering...

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PUM

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Abstract

A torque detector (30) includes: a magnetic flux collecting unit (50) including a magnetic flux collecting holder (70) formed in an annular shape by resin molding and a magnetic shield (60) formed by bending a metal plate and attached to an outer peripheral face (70Y) of the magnetic flux collecting holder (70); and a sensor housing (80) formed integrally with the magnetic flux collecting unit (50). The magnetic shield (60) has a shield body (62), a shield end portion (61), and a bent portion (64). A second angle formed between an outer side face (61B) of the shield end portion (61) and a radial direction (ZB) is smaller than a first angle formed between an outer peripheral face (62Y) of the shield body (62) and the radial direction (ZB).

Description

[0001] This application claims the priority of Japanese Patent Application No. 2012-281665 filed on December 25, 2012, and all contents including the specification, drawings, and abstract are cited here. Technical field [0002] The present invention relates to a torque detection device and a steering device provided with the torque detection device, wherein the torque detection device has a magnetic flux collecting unit that collects magnetic flux from a yoke and a sensor housing integrally formed with the magnetic flux collecting unit . Background technique [0003] The existing torque detection device has a magnetic collecting unit and a sensor housing, wherein the magnetic collecting unit has a magnetic collecting ring, a ring bracket, and a magnetic shield. This torque detection device has a structure in which the magnetism collecting unit is fixed to the sensor housing in a state where the magnetism collecting unit is inserted into an insertion hole formed in the sensor hous...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L3/10
CPCG01L5/221G01L3/104G01L3/101G01R33/0011G01R33/072
Inventor 幸村贵广竹内彰启山下阳史饭田俊雄大石武志
Owner JTEKT CORP
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