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Variable reluctance type angle detector

一种角度检测器、磁阻的技术，应用在可变磁阻型角度检测器领域，能够解决降低产品可靠性、不充分绝缘、初发故障减少产品产率等问题

Inactive Publication Date: 2007-04-18
ICHINOMIYA ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the insulating varnish layer may peel off over time during use due to vibration, etc.
Incipient failures due to insufficient insulation reduce product yield
Insufficient insulation over time reduces product reliability

Method used

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Embodiment Construction

[0023] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and according to preferred embodiments.

[0024] Fig. 1 shows the main structure of a variable reluctance angle detector 1 according to an embodiment of the present invention. As shown in FIG. 1 , a variable reluctance type angle detector 1 is equipped with a stator 7 and a rotor 8 rotatably provided at the center of the stator 7 . The stator 7 has twelve tooth-shaped members 2 arranged in a ring and protruding inward. End insulators 3 provide an insulating cladding on the toothed member 2 . Excitation wire 4 and output wires 5 and 6 are wound from the outside of end insulator 3 .

[0025] As shown in FIG. 1, the entire outer shape of the stator 7 is substantially in the form of a ring. Twelve tooth members 2 protrude radially inward from the inner periphery of the stator 7 . The stator 7 has a stator core and end insulators 3 . The stator core is formed by st...

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Abstract

The variable reluctance type angle detector has a stator and a rotor. The rotor is provided rotatably with respect to the stator. The stator has a plurality of tooth members disposed in a circle. An excitation wire and an output wire are wound around the tooth members. The rotor has such a shape that a gap permeance with respect to the stator varies in a sine wave fashion with respect to an angle theta. The stator is provided with an end insulator for insulating and covering the tooth members. The end insulator is provided with partitions each insulating and separating the excitation wire from the output wire wound around each of the tooth members in a radial direction of the stator.

Description

[0001] Cross References to Related Applications [0002] This application claims priority from Japanese Patent Application No. 2005-299773 filed on October 14, 2005. The entire content of this priority application is incorporated herein by reference. technical field [0003] The present invention relates to a variable reluctance type angle detector, which includes a rotor having a shape such that the gap permeance varies with a sinusoidal waveform relative to θ, and is rotatable relative to a stator in which an excitation wire and an output wire are wound on around the teeth. Background technique [0004] As a conventional variable reluctance type angle detector, there is known a structure having a rotor rotatably provided inside a stator. The stator has a stator core equipped with, for example, twelve tooth-shaped members protruding inward and arranged annularly. Excitation wires and two-phase out...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/30G01D5/14G01D5/245
CPCG01D5/00G01D5/2053H02K24/00G01D5/2046
Inventor 饭岛康雄
Owner ICHINOMIYA ELECTRIC
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