Contactless electric power supply device

Abstract

The present invention provides a contactless electric power supply device for supplying, without contact, electric power to the coils of a linear motor device provided with a track member, a movable body which is installed on the track member, magnets which are arranged in rows on the track member, and the coils which are provided to the movable body. The contactless electric power supply device is provided with: two sets of contactless electric power supply sections each having an electric power supply electrode plate which is provided to the track member so as to extend in the movement direction and an electric power receiving electrode plate which is provided to the movable body and which faces the electric power supply electrode plate, the two sets of contactless electric power supply sections being capable of supplying high-frequency electric power in a contactless manner; a high-frequency electric power source section for supplying high-frequency electric power between the electric power supply electrode plates; and an electric power conversion section which converts the high-frequency electric power supplied in a contactless manner to the electric power receiving electrode plates and which supplies the converted electric power to the coils. As a result of the configuration, the contactless electric power supply device is low cost and can perform, with large electric power supply capacity and high electric power supply efficiency, contactless electric power supply to the coils of the movable body of the linear motor device, and the contactless electric power supply does not affect the generation of a propulsion force.

Description

technical field [0001] The present invention relates to a non-contact power supply device, and more specifically, to a device for supplying power to a coil provided on a moving body of a linear motor device in a non-contact manner. Background technique [0002] There are solder printing machines, component mounting machines, reflow soldering machines, board inspection machines, etc. as board working equipment for producing boards on which many components are mounted. Many of these machines are connected by a board transfer device to form a board production line. Many of these substrate working equipment generally include a moving body that moves on the substrate to perform predetermined operations, and the moving body is driven by a linear motor device, a ball screw mechanism, or the like. Furthermore, in order to supply required electric power to the moving body, conventionally, a deformable power supply cable is used, or a sliding power supply unit capable of supplying pow...

AI Technical Summary

Problems solved by technology

However, there is concern about metal fatigue caused by reciprocating deformation on the power supply cable in the above-mentioned contact power supply mechanism, and there is also concern about wear and tear on the sliding power supply part.

Images