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Non-contact power supply transformer for mobile body

A non-contact power supply and moving body technology, applied in the field of transformers, can solve the problems of power supply efficiency reduction and achieve the effect of suppressing leakage magnetic field

Inactive Publication Date: 2017-07-07
TECHNOVA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the leakage magnetic fluxes 68 and 69 penetrate into the iron plate of the floor of the vehicle body, etc., an induced current will flow and the iron plate will be heated, and the power supply efficiency will decrease.

Method used

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  • Non-contact power supply transformer for mobile body
  • Non-contact power supply transformer for mobile body
  • Non-contact power supply transformer for mobile body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0072] Figure 1A , Figure 1B A power transmission coil of a mobile body non-contact power supply transformer according to an embodiment of the present invention is schematically shown. The power receiving coil also has the same structure.

[0073] This power transmission coil is composed of a combined double-wound coil in which two single double-wound coils 100 and 200 are combined.

[0074] The single double-side wound coils 100 and 200 are formed by winding Litz wire around the wound portion of the H-shaped core, specifically, as Figure 7A , Figure 7B As shown, the H-shaped core is formed by a pair of parallel magnetic pole cores 80 and a winding core 81 orthogonal to the magnetic pole cores 80 . Both the pole core 80 and the winding core 81 are ferrite cores.

[0075] The winding part 50 around which the electric wire is wound is attached to the center of the winding core 81 , and both ends of the ferrite plate protruding from both sides of the winding part 50 are ...

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PUM

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Abstract

At least one of the power transmission coil (10) and the power reception coil (20) is constituted by a combined double-side wound coil combining a plurality of single double-side wound coils (100, 200). For the single double-wound coils (100, 200), select the single double-wound coil in which the leakage magnetic flux around the moving body does not exceed a specified value when two single double-wound coils are installed at the installation position of the moving body The number of coils combined into a single double-wound coil combined with the double-wound coil is set so that the product of the power supply capacity of the single double-wound coil and the number satisfies the power supply capacity of the non-contact power supply transformer. The leakage magnetic flux can be reduced, and the capacity can be easily increased by using the number of combinations.

Description

technical field [0001] The present invention relates to a non-contact power supply transformer for a mobile body that supplies power to a mobile body such as an electric vehicle in a non-contact manner. Interchangeable transformers for types of contactless power supply transformers. Background technique [0002] As a system for charging the batteries of electric vehicles and plug-in hybrid vehicles, a system such as Figure 18 As shown, the secondary side coil (power receiving coil) 20 of the non-contact power supply transformer is mounted on the floor surface of the vehicle, and power is supplied in a non-contact manner from the primary side coil (power transmission coil) 10 installed on the ground side by electromagnetic induction. Way. [0003] In the following patent document 1, a kind such as Figure 19A , Figure 19B Coils formed by spirally and flatly winding electric wires on one side of the flat ferrite cores 21 and 31 as shown are used as the transmission coil a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F38/14B60L5/00H02J50/10
CPCH01F27/306H01F38/14B60L1/02B60L2240/36Y02T90/12Y02T90/14H01F27/255Y02T10/7072B60L2270/147B60L53/36B60L53/122Y02T10/70H02J50/70H02J50/10
Inventor 阿部茂金子裕良保田富夫岸洋之
Owner TECHNOVA
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