Thin-layer annular non-contact power transmission device

Abstract

The invention belongs to the technical field of mechanical and electronic integration and relates to a thin-layer annular non-contact power transmission device which is characterized by comprising a direct current (DC) / alternating current (AC) module (101), an electric field coupling ring (102) and an AC / DC module (103). The DC / AC module (101) is used for generating high frequency alternating current, and the high frequency alternating current is sent in the electric field coupling ring (102); one end of the electric field coupling ring (102) enables the high frequency alternating current to be converted into a high frequency alternating magnetic field to perform external radiation; the other end of the electric field coupling ring (102) enables the high frequency alternating magnetic field to be converted into induction alternating current; and the induction alternating current is converted into direct current by using the AC / DC module (103), and the direct current is supplied to electronic devices on a rotating component. The thin-layer annular non-contact power transmission device can be spliced by using standard elements and is strong in generality, light and thin is structure and low in cost.

Description

technical field [0001] The invention belongs to the technical field of mechatronics, and relates to a thin-layer annular non-contact power transmission device, which can be used for non-contact power transmission of rotating parts, machine joints, speed turntables and underground equipment. Background technique [0002] At present, some progress has been made in the technology of non-contact power transmission for rotating parts such as radar, speed turntable, prospecting drilling, mechanical joints, etc. A certain air gap is transmitted to the other end of the relative rotation, thus solving many disadvantages such as poor stability, difficult processing, short life and high cost of the traditional electric contact conductive slip ring. Among them, the magnetic core is the key component of the loosely coupled transformer, which is a non-standard component, so it can only be customized according to the specific structure and size requirements with the magnetic core manufactu...

AI Technical Summary

Problems solved by technology

[0002] At present, some progress has been made in the technology of non-contact power transmission for rotating parts such as radar, speed turntable, prospecting drilling, mechanical joints, etc. A certain air gap is transmitted to the other end of the relative rotation, thus solving many disadvantages such as poor stability, difficult processing, short life and high cost of the traditional electric contact conductive slip ring.

Among them, the magnetic core is the key component of the loosely coupled transformer, which is a non-standard component, so it can only be customized according to the specific structure and size requirements with the magnetic core manufacturer, and the versatility of the mold is poor. All must be re-opened and made, and the cost of mold processing alone is very high; the sintering of the ferrite core must go through a strict process, otherwise once a certain index of the core such as magnetic permeability, Curie temperature, saturation If the magnetic flux density or moment coercive force is not up to standard, the entire batch of products will be scrapped, and the time cost and economic cost of rework will be higher

[0003] In addition, due to the limitations of technology and strength, the manufactured magnetic cores or magnetic rings are often thick and heavy, which cannot meet the light and thin design requirements, resulting in unnecessary waste and greatly limiting applications.

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