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Alternating current/direct current tachogenerator

A tachogenerator, AC and DC dual-purpose technology, applied in the direction of electrical components, electromechanical devices, etc., can solve problems such as uneven air gap, nonlinear error of output characteristics, asymmetric magnetic circuit, etc., and achieve no residual voltage and no failure area, the effect of precise measurement

Active Publication Date: 2016-05-25
绵阳赛恩新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Tachometer generators are mainly divided into two categories: DC tachometer generators and AC asynchronous tachometer generators: when the DC tachometer generator is running under load, the output voltage and the speed cannot maintain a strict proportional relationship, and there are errors, mainly due to the armature reaction The demagnetization effect of the brush, the non-linearity of the contact resistance of the brush, and the influence of temperature. In addition, due to the

Method used

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  • Alternating current/direct current tachogenerator
  • Alternating current/direct current tachogenerator
  • Alternating current/direct current tachogenerator

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Example Embodiment

[0016] The implementation of the AC and DC dual-purpose tachogenerator of the present invention will be further described below in conjunction with the accompanying drawings.

[0017] Such as figure 1 , figure 2 As shown, an AC and DC dual-purpose tachogenerator includes a rotating shaft 1, a left end cover bearing 2, a left end cover 3, a cup-shaped rotor 4, an outer magnetic isolation sleeve 5, a permanent magnet 6, a base 7, and an inner stator 8. Inner magnetic isolation sleeve 9, right end cover 10, right end cover bearing 11, outer stator 12 and Hall element 13.

[0018] The outer magnetic isolation sleeve 5 is fixed on the inner side of the base 7, and the outer stator 12 is fixed on the inner side of the outer magnetic isolation copper sleeve 5; the outer stator 12 is a split structure, and the permanent magnetic steel 6 is embedded in each part. The inner magnetic isolation sleeve 9 is fixed with the right end cover 10, the inner magnetic isolation sleeve 9 is provided wi...

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Abstract

An alternating current/direct current tachogenerator is disclosed. The tachogenerator comprises an engine base, an external flux-insulation sleeve, an external stator, permanent magnetic steels, a hollow cup-shaped rotor, an internal stator, an internal flux-insulation sleeve, hall elements, a rotating shaft, a left end cover and a bearing, and a right end cover and a bearing, wherein the external flux-insulation sleeve is fixed on the inner side of the engine base; the external stator is fixed on the inner side of the external flux-insulation sleeve; the permanent magnetic steels are embedded in clamping grooves among the parts of the external stator; the internal flux-insulation sleeve and the right end cover are fixed; the internal stator is fixed on the outer side of the internal flux-insulation sleeve; the hall elements are embedded in the clamping grooves among the parts of the internal stator; one end of the rotating shaft passes through the left end cover bearing while the other end of the rotating shaft passes through the cup bottom of the cup-shaped rotor, the central through hole of the internal flux-insulation sleeve and the right end cover bearing; and the cup wall of the cup-shaped rotor is positioned an gap between the internal stator and the external stator. The alternating current/direct current tachogenerator provided by the invention can convert the rotating speed into the corresponding alternating current or direct current electric signal to output according to needs, is free of a reversing device, a winding, a toothed slot and residual voltage, and capable of accurately measuring the rotating speed at a low speed.

Description

technical field [0001] The invention relates to a tachogenerator, more specifically to an AC / DC dual-purpose tachogenerator. Background technique [0002] The tachogenerator is a tiny electrical device that measures the speed. Its function is to convert the input mechanical speed into a voltage signal output, and make the output voltage signal proportional to the speed. Tachometer generators are mainly divided into two categories: DC tachometer generators and AC asynchronous tachometer generators: when the DC tachometer generator is running under load, the output voltage and the speed cannot maintain a strict proportional relationship, and there are errors, mainly due to the armature reaction The demagnetization effect of the brush, the non-linearity of the contact resistance of the brush, and the influence of temperature. In addition, due to the existence of the iron core cogging, a certain tooth harmonic electromotive force will be generated; when the AC asynchronous tacho...

Claims

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Application Information

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IPC IPC(8): H02K16/04
CPCH02K16/04
Inventor 赵浩冯浩丁立军
Owner 绵阳赛恩新能源科技有限公司
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