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Induction power transmission apparatus used for aircraft engine rotor remote-measuring system

An inductive power transmission, aero-engine technology, applied in electromagnetic wave systems, transformer/inductor coils/windings/connections, etc., can solve the problem that the power regulation circuit does not provide a solution, the axial size of the rectifier and voltage regulation circuit and the output voltage stability There are relatively high requirements for the degree of control, etc., to achieve the effect of light weight, reduced mechanical installation difficulty, and easy manufacturing.

Inactive Publication Date: 2016-01-06
CHINA PRECISION ENG INST FOR AIRCRAFT IND AVIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 3. There is no specific solution given for the power regulation circuit. The aeroengine rotor telemetry system has high requirements for the axial size and output voltage stability of the rectifier and voltage regulator circuit.

Method used

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  • Induction power transmission apparatus used for aircraft engine rotor remote-measuring system
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  • Induction power transmission apparatus used for aircraft engine rotor remote-measuring system

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Embodiment

[0031] The helical PCB board used in the embodiment has a diameter of 120 mm and a board thickness of 2 mm. There are four countersunk screw mounting holes with a diameter of 3 mm on the edge. The middle hole provides an optical transmission path for the laser device with a diameter of 10 mm. Set the line width, spacing and copper thickness of the helix according to the size of the transmission current and the winding resistance requirements. In this embodiment, the line width is 1mm, the spacing is 0.5mm, the copper thickness is 6oz, the final helix resistance is 0.9 ohms, and the inductance is 26uH. In order to prevent the magnetic field from interfering with other circuits or devices and the eddy current effect, the back of the helical PCB board is covered with a flexible ferrite magnetic isolation sheet with high magnetic permeability. The soft magnetic sheet selected in this embodiment has a thickness of 0.2mm and a magnetic permeability of 2800. The smaller the gap betwee...

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Abstract

The invention relates to an induction power transmission apparatus used for an aircraft engine rotor remote-measuring system. The induction power transmission apparatus comprises a high-frequency inverter circuit, a detachable transformer and a rectifying voltage-regulating circuit; the detachable transformer comprises two circuit PCB plates, wherein the two circuit PCB plates are the same and one surface of each plate is printed with helical lines; a central open pore provides an optical transmission access for a laser; the surfaces with the helical lines of the two PCB plates are opposite and coaxially mounted; air gaps exist between the two PCB plates; the back surfaces of the two PCB plates are covered and glued by flexible soft magnetic sheets with high magnetic conductivity; the output end of the high-frequency inverter circuit is connected with the helical lines to be used as a primary side, and the primary side is a static part; and the input end of the rectifying voltage-regulating circuit is connected with the helical lines to be used as a secondary side, and the secondary side is a rotary part and mounted at the shaft end of a rotation shaft. According to the induction power transmission apparatus, non-contact power transmission is realized based on the electromagnetic induction principle; the adopted detachable transformer has the advantages of being light in the whole weight, small in axial size, easy to manufacture and convenient to mount, so that the induction power transmission apparatus is suitable for the aircraft engine rotor remote-measuring system and other high-speed rotary equipment.

Description

technical field [0001] The invention relates to the technical field of electric energy transmission equipment, in particular to an inductive electric energy transmission device used in an aeroengine rotor telemetry system, and the device is also suitable for supplying power to electric equipment on other high-speed rotating shafts. Background technique [0002] In the process of performance research and safety life management of aero-engine rotor components, it is necessary to measure many parameters such as temperature, pressure, fatigue strain, etc. Accurate and real-time acquisition of these parameters is of great significance for the performance research of engine rotors. Brush-type current collectors are used Such traditional contact data acquisition equipment cannot meet the increasing measurement requirements under high-speed working conditions, and technical improvement is urgently needed. Wireless laser communication is a non-contact photoelectric data transmission ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J17/00H01F27/28
Inventor 王宏远孟凡军聂宜云
Owner CHINA PRECISION ENG INST FOR AIRCRAFT IND AVIC
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