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A bridge-arm connected multi-phase flat magnetic core receiving end for wireless power supply of electric vehicles

A flat magnetic core, wireless power supply technology, applied in the direction of transformer/inductor coil/winding/connection, transformer/inductor magnetic core, electrical components, etc., can solve the problem of low energy transmission efficiency, discontinuous energy transmission, poor stability, etc. problem, to achieve the effect of good electromagnetic compatibility, saving magnetic core material, and strong lateral offset ability

Active Publication Date: 2017-08-25
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem that the existing electric vehicle uses batteries for power supply and walks on bipolar launch guide rails, the energy transmission is discontinuous, the stability is poor, and the energy transmission efficiency is low

Method used

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  • A bridge-arm connected multi-phase flat magnetic core receiving end for wireless power supply of electric vehicles
  • A bridge-arm connected multi-phase flat magnetic core receiving end for wireless power supply of electric vehicles
  • A bridge-arm connected multi-phase flat magnetic core receiving end for wireless power supply of electric vehicles

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Experimental program
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specific Embodiment approach 1

[0030] Specific implementation mode one: refer to Figure 1 to Figure 11 Describe this embodiment in detail. A bridge arm connection type multi-phase planar magnetic core receiving end applied to wireless power supply of electric vehicles described in this embodiment, the magnetic core receiving end includes m×n planar magnetic cores 1, n A group of bridge arm magnetic cores 2 and m×n receiving coils 3, m and n are both integers greater than 1,

[0031] Each group of bridge arm magnetic cores 2 includes a bridge arm magnetic core 2, where a is a positive integer greater than or equal to 1;

[0032] m×n planar magnetic cores 1 are placed in parallel and equally spaced in sequence, and each bridge arm magnetic core 2 in the first group of bridge arm magnetic cores 2 is sequentially connected to the first planar magnetic core 1 and the n+1th plate Magnetic core 1, between the 2n+1th planar magnetic core 1, ..., and (m-1)×n+1th planar magnetic core 1; each bridge arm in the secon...

specific Embodiment approach 2

[0039] Specific embodiment 2: This embodiment is a further description of the receiving end of a bridge arm connection type multi-phase flat magnetic core applied to electric vehicle wireless power supply described in specific embodiment 1. In this embodiment, each phase receiving unit The center-to-center distance between two adjacent planar magnetic cores 1 is equal to the center-to-center distance between two adjacent magnetic poles on the guide rail at the transmitting end.

specific Embodiment approach 3

[0040] Specific embodiment three: This embodiment is a further description of the receiving end of a bridge-arm connection type multi-phase planar magnetic core applied to electric vehicle wireless power supply described in specific embodiment one. In this embodiment, along the planar magnetic core The width of one planar magnetic core 1 in the arrangement direction is less than 1 / n of the distance between the centers of two adjacent magnetic poles of the emitter guide rail, and the width of one planar magnetic core 1 is the width along the arrangement direction of the planar magnetic cores.

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Abstract

The invention relates to a bridge-arm connection type multi-phase planar magnetic core receiving end applied to wireless power supply of electric vehicles, and relates to the technical field of wireless power transmission. The invention aims to solve the problems that the existing electric vehicles use batteries for power supply and travel on bipolar launch guide rails, resulting in large battery consumption and poor energy saving performance. Each bridge arm core in the first group of bridge arm cores is sequentially connected across the first planar core, the n+1th planar core, the 2n+1th planar core, ..., and Between the (m-1)×n+1 planar magnetic cores; each bridge arm magnetic core in the second group of bridge arm magnetic cores is sequentially connected across the second planar magnetic core and the n+2th planar magnetic core core, the 2n+2 slab core, ..., and between (m-1)×n+2 slab cores; ...; each bridge arm core in the nth group of bridge arm cores The nth planar magnetic core, the 2nth planar magnetic core, the 3nth planar magnetic core, . . . , and the m×n planar magnetic core are connected sequentially. It can be used in electric vehicles.

Description

technical field [0001] The invention relates to a bridge arm connection type multi-phase flat magnetic core receiving end applied to wireless power supply of electric vehicles. It belongs to the technical field of wireless power transmission. Background technique [0002] At present, there are two major bottlenecks in the development of electric vehicles. One is the battery on the vehicle. From the perspective of recent technology, there are many problems such as volume, weight, price, material, safety, charging speed, and lifespan. In addition, the production of batteries The process is a process of high pollution, resource consumption, and damage to the ecological environment. These characteristics bring difficulties to the industrialization of electric vehicles; the other is the problem of charging infrastructure on the ground. On the one hand, due to the long charging time, a large amount of charging or Power exchange facilities bring great difficulties to municipal con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J50/10H01F27/26H01F27/30
Inventor 朱春波魏国姜金海汪超
Owner HARBIN INST OF TECH