Non-contact power transmission coil, portable terminal and terminal charging device

A portable terminal and power transmission technology, applied in battery circuit devices, circuit devices, transportation and packaging, etc., can solve the problems of increasing the thickness of planar coils, hindering the thinning of mobile phone units, and achieving the effect of preventing overlapping

Active Publication Date: 2008-11-12
SONY MOBILE COMM INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In other words, the overlapping portion of this wire greatly increases the thickn

Method used

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  • Non-contact power transmission coil, portable terminal and terminal charging device
  • Non-contact power transmission coil, portable terminal and terminal charging device
  • Non-contact power transmission coil, portable terminal and terminal charging device

Examples

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Example Embodiment

[0042] Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings.

[0043] In the present embodiment, a mobile phone unit is provided as an example of a portable terminal. In this case, the non-contact power transmission coil having the helical planar coil according to the embodiment of the present invention is mounted on the portable terminal. In addition, as an example of a terminal charging apparatus according to an embodiment of the present invention, a cradle capable of charging at least the above-described mobile phone unit is provided. Needless to say, anything described herein is provided by way of example only, and the invention is not therefore limited to such examples.

[0044] [General configuration of cradle and mobile phone unit and their basic actions during charging]

[0045] image 3 The internal structure of the main part of the stand 1 and the internal structure of the main part of the mobile phone ...

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Abstract

The present invention discloses a noncontact power-transmission coil, portable terminal and terminal charging device. The noncontact power-transmission coil includes a planar coil and a printed-circuit board. The planar coil is formed by spirally winding a linear conductor made of a single or twisted wire in a substantially same plane. The printed-circuit board includes a first external connection terminal portion, a second external connection terminal portion, a first contact portion connected to an inner peripheral end of the spirally-wound linear conductor, a second contact portion connected to the outer peripheral end of the spirally-wound linear conductor, a first conductor pattern connecting the first contact portion to a first external connection terminal portion, and a second conductor pattern connecting the second contact portion to a second external connection terminal portion. One planar portion of the planar coil is attached on the surface of the flexible printed-circuit board.

Description

technical field [0001] The present invention relates to a non-contact power transmission (power transmission) that utilizes electromagnetic induction to perform power transmission in a non-contact manner when charging a rechargeable battery contained in a small-sized, thin portable terminal such as a mobile phone unit. -transmission) coil. The present invention also relates to a terminal charging device and a portable terminal including such a non-contact power transmission coil. Background technique [0002] In the past, there has been known a system in which charging power for charging a rechargeable battery included in a portable terminal is transmitted by electromagnetic induction, for example, using a non-contact power transmission coil. [0003] Furthermore, Japanese Unexamined Patent Application Publication No. 2006-42519 ( figure 2 and image 3 ) discloses a planar coil mounted on a portable terminal desiring to be thin such as a mobile phone unit as a non-contact...

Claims

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Application Information

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IPC IPC(8): H02J17/00H02J7/00H01M10/44H02M3/155H05K1/16
CPCH01F27/2828H01F27/2804H01F38/14H02J7/025H01F27/365H01F2027/2819H02J50/10H02J7/00045H02J50/005H02J50/70H01F27/36H01F27/361H01F27/366H02J50/60H02J50/80
Inventor 加藤博铃木邦治铃木克哉山崎学近藤阳一郎大西幸太依田健太郎神干基上条贵宏曾我部治彦
Owner SONY MOBILE COMM INC
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