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Small size core free motor and wireless operating model game apparatus

A coreless, motor technology, applied in toys, remote control toys, electromechanical devices, etc., can solve the problems of coil size deformation, poor thermal conductivity, heat accumulation, etc., and achieve the effects of suppressing size deformation, improving heat resistance, and fast response

Inactive Publication Date: 2005-07-13
NAMIKI PRECISION JEWEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since aluminum is a poorer thermal conductor than copper, heat tends to accumulate in the coil
In addition, due to the large coefficient of linear expansion, there is also a possibility of dimensional deformation of the coil due to heat

Method used

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  • Small size core free motor and wireless operating model game apparatus
  • Small size core free motor and wireless operating model game apparatus

Examples

Experimental program
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Effect test

Embodiment Construction

[0019] figure 1 A small coreless motor according to an example of the present invention is shown in cross section. In the figure, reference numeral 1 denotes a cylindrical coil, 2 denotes a hub for holding the coil 1, 3 denotes a rotating shaft for holding the hub 2, 4 denotes a stop ring of the hub 2, and 5 denotes a hub for holding the coil 1. 6 is a bearing box, 7a, 7b is a bearing, 8 is a housing, 9a, 9b is a rectifier, 10 is a rectifier stand, 11 is a brush, and 12 is a brush stand.

[0020] In this structure, in a preferable embodiment, the coil 1 is formed into a cylindrical shape by winding a copper-clad aluminum wire. Such as figure 2 As shown, the copper-clad aluminum wire is formed in the following manner: a core 1a is made of aluminum or an aluminum alloy with a small specific gravity, a copper film 1b is coated on the outer periphery of the core 1a, and an insulating coating 1c is coated on the copper film 1b On the outer periphery of the insulating coating 1c...

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Abstract

PROBLEM TO BE SOLVED: To constitute a small-sized coreless motor which is light as the entire rotor, low in inertia, small in mechanical time constant, quick in response, and is excellent in reliability and durability by elevating heat dissipative property, and a radio-guided model game machine which is excellent in servo performance, reliability, and durability. SOLUTION: The small-sized coreless motor is constituted, including a cup-type rotor which is composed of a coil 1 that is wound in cylindrical form out of a copper-clad aluminum wire or an aluminum wire, a hub 2 that is made in disc form out of aluminum or aluminum alloy, and a rotating shaft 3 that is retained by an commutator base 10 of insulating resin provided at the center of the hub 2. It is mounted as a servo motor on a radio-guided model game machine. COPYRIGHT: (C)2005,JPO&NCIPI

Description

technical field [0001] The present invention relates to a small coreless motor equipped with a cup-shaped rotor, and model game appliances such as automobiles and airplanes of the wireless operation type. Background technique [0002] In a cordless operation type model game, a small coreless motor having a cup-shaped rotor is mounted as a servo motor. [0003] This small coreless motor is constituted to include a cup-shaped rotor assembled from the following components: a cylindrical coil; The inner disc-shaped roulette; the center part is inserted into the roulette, and the rotation axis of the roulette is held near the one-side shaft end. [0004] On one side of the rotor, there is a cylindrical magnet inserted into the coil of the coil with a gap between the inner peripheral surface of the coil, a bearing box for mounting the magnet coaxially with the rotating shaft, and a connection with the coil. The casing is assembled with a gap between the outer peripheral surfaces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A63H29/22A63H30/04H02K3/47H02K5/18H02K9/22H02K23/58
CPCH02K13/006
Inventor 冈本敦志小田桐琴也小野寺文人
Owner NAMIKI PRECISION JEWEL CO LTD
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