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Magnetic resolver and method of manufacturing the same

A decomposer and substrate technology, which can be applied in the direction of instruments, converting sensor outputs, and using electromagnetic/magnetic devices to transmit sensing components, which can solve problems such as poor yields

Inactive Publication Date: 2009-04-29
TOYOTA JIDOSHA KK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If donut-shaped (ring-shaped) substrates are used as described in the aforementioned JP 7-79542, this results in poor yields when cutting multiple ring-shaped substrates from the substrate material

Method used

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  • Magnetic resolver and method of manufacturing the same
  • Magnetic resolver and method of manufacturing the same
  • Magnetic resolver and method of manufacturing the same

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Embodiment Construction

[0021] Embodiments of the present invention will be described below with reference to the drawings.

[0022] figure 1 is an exploded perspective view showing a magnetic resolver according to the present invention. In the following detailed description and appended claims, the "upper" direction does not necessarily refer to the vertical upward direction in the state where the magnetic resolver is installed, but refers to the direction along the rotation axis of the rotor part relative to the stator part , regardless of the orientation of the previously installed magnetic resolver.

[0023] The magnetic resolver 10 of the present embodiment is a variable reluctance (VR) resolver, and as figure 1 As shown, there are: a base plate 20 constituting a stator portion; a substrate 30 on which a coil portion is formed (hereinafter referred to as “coil substrate 30 ”); and a rotor plate 40 constituting a rotor portion. Such as figure 1 As shown, the bottom plate 20 , the base plate 3...

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PUM

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Abstract

A magnetic resolver that includes: an annular stator portion having a protruding core; an annular coil substrate on which a coil portion, which is disposed around the protruding core, is formed as a patterned thin-film coil; and a rotor portion disposed to face the stator portion from above, with the coil substrate interposed therebetween, wherein the amount of overlap between a top face of the protruding core and the rotor portion, when viewed from above, varies as a rotation angle of the rotor portion relative to the stator portion varies. The annular coil substrate may be constituted of substrate pieces that have shapes obtained by dividing the annular shape, which facilitates increasing the yield rate in the number of substrate pieces that can be produced from a substrate material.

Description

technical field [0001] The present invention relates to a magnetic resolver and a method of manufacturing the magnetic resolver, the structure of which improves the productivity of manufacturing the magnetic resolver. Background technique [0002] A motor controller including a Hall IC (Integrated Circuit) for detecting the position of the rotor may be manufactured by forming a printed circuit board having a donut shape surrounding the shaft of the rotor. Then, on the inner diameter side of the donut-shaped printed circuit board, a first cutout is made in the printed circuit board to set the Hall IC therein, and a second cutout is made in the printed circuit board on its outer diameter side to guide out Lead wires (see, for example, Japanese Patent Laid-Open No. 7-79542 ("JP 7-79542")). [0003] Generally, a conventional magnetic resolver includes a rotatable rotor core; a stator core having two stator plates sandwiching the rotor core from above and below, and having raise...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K24/00G01D5/20
CPCH02K24/00H02K3/26G01D5/2046G01D5/208Y10T29/4902
Inventor 西口正幸关富勇治木村利博
Owner TOYOTA JIDOSHA KK
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