Induction coil for cordless energy charging and data transfer

An induction coil and wireless charging technology, which is applied in battery data exchange, inductors, fixed inductors, etc., can solve the problems of reduced power transmission efficiency, complicated series connection, and shortened lifespan.

Inactive Publication Date: 2009-09-02
SK CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the impedance value of the circuit pattern increases, power transmission efficiency decreases, and thus heat and electromagnetic waves relatively increase
In

Method used

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  • Induction coil for cordless energy charging and data transfer
  • Induction coil for cordless energy charging and data transfer
  • Induction coil for cordless energy charging and data transfer

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0028] A spiral circuit pattern with a winding number of 18 turns, an outer diameter of 42 mm, a thickness (thickness of the circuit) of 0.65 mm, and a distance between patterns of 0.2 mm is formed on the upper part of a polyimide film with a thickness of 10 μm by using copper , and then stacked 8 layers, is used as the transfer main winding of the pad type current transfer part. A spiral circuit pattern in which the number of turns of the winding is 18, the outer diameter is 30 mm, the thickness (thickness of the circuit) is 0.54 mm, and the distance between the patterns is 0.2 mm is formed on a polyimide film with a thickness of 10 μm by using copper On the upper part, 4 layers are then stacked to be used as the receiving secondary winding of the pad type current receiving part. The current transmitting part is in contact with the current receiving part, and a current of 0.151A and 4.62V is applied to the transmitting main winding, and then the current and voltage generated ...

example 2

[0030] The same transfer main winding in Example 1 was used as the transfer main winding of the pad type current transfer section. A spiral circuit pattern in which the number of turns of the winding is 18, the outer diameter is 35 mm, the thickness (thickness of the circuit) is 0.67 mm, and the distance between the patterns is 0.2 mm is formed on a polyimide film with a thickness of 10 μm by using copper On the upper part, 5 layers are then stacked to be used as the receiving secondary winding of the pad type current receiving part. The current transmitting part is in contact with the current receiving part, and a current of 0.151A and 4.62V are applied to the transmitting main winding, and then the current and voltage generated in the receiving secondary winding are measured, and accordingly, a current of 0.115A and 3.85V are detected, And the power transfer efficiency is 63%.

example 3

[0032] The same transfer main winding in Example 1 was used as the transfer main winding of the pad type current transfer section. The number of turns of the winding is 16, the outer diameter is 34 mm, the thickness (thickness of the circuit) is 0.75 mm, and the distance between the patterns is 0.2 mm. The rectangular circuit pattern is formed by using copper on a polyimide film with a thickness of 10 μm. On the upper part, 6 layers are then stacked to be used as the receiving secondary winding of the pad type current receiving part. The current transmitting part is in contact with the current receiving part, and a current of 0.151A and 4.62V are applied to the transmitting main winding, and then the current and voltage generated in the receiving secondary winding are measured, and accordingly, a current of 0.119A and 3.88V are detected, And the power transfer efficiency is 65%.

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Abstract

An induction coil for cordless energy charging and data transfer, which is used for charging a battery and transferring the data by using an induction connection between a charger and a battery without a direct electric contact, is disclosed. The induction coil is formed such that more than two printed circuit boards, on which a prescribed circuit pattern is formed, are laminated, wherein first ends positioned on an outside of the circuit patterns are electrically connected by a first connection part penetrating the first ends, and second ends positioned on an inside of the circuit patterns are electrically connected by a second connection part penetrating the second ends.

Description

technical field [0001] The present invention relates to an induction coil for wireless charging and data transmission, more specifically, the present invention relates to a wireless charging and wireless charging and data transmission using an inductive connection between the charger and the battery without direct electrical contact Inductive coil for data transmission. Background technique [0002] Recently, with the development and widespread use of portable electronic devices, such as mobile phones, digital cameras, etc., and wireless electronic devices, such as remote cleaners, wireless keyboards, etc., the use of battery packs as power sources in machines has increased. The battery pack in the machine includes an internal battery pack, input / output terminals, etc., and is charged by direct electrical contact with a dedicated charger, which is powered separately. However, since the battery pack and the charger have various models and sizes depending on products or compa...

Claims

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Application Information

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IPC IPC(8): H02J17/00
CPCH02J7/025H01F2038/143H01F17/0013H01F38/14H02J50/10H02J7/00034H02J50/80
Inventor 韩淳宗金渭镇金道显辛钟昱李孝日
Owner SK CHEM CO LTD
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