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Bridge Arm Wound Multiphase Flat Magnetic Core Receiver Device for Wireless Power Supply of Electric Vehicles

A flat magnetic core and wireless power supply technology, which is applied in circuit devices, transformer/inductor coils/windings/connections, transformer/inductor cores, etc., can solve the problem of poor lateral offset capability, poor electromagnetic compatibility, and stable power Poor performance and other problems, to achieve the effect of strong lateral offset capability, high electromagnetic compatibility, and large inductance

Active Publication Date: 2017-03-01
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that existing wireless power supply devices have a small coupling coefficient between the electric vehicle and the guide rail, poor lateral offset capability, large magnetic field leakage, poor electromagnetic compatibility, high manufacturing cost, and low power stability. To deal with the poor problem, it provides a bridge arm wound multi-phase planar magnetic core receiving end device for wireless power supply of electric vehicles

Method used

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  • Bridge Arm Wound Multiphase Flat Magnetic Core Receiver Device for Wireless Power Supply of Electric Vehicles
  • Bridge Arm Wound Multiphase Flat Magnetic Core Receiver Device for Wireless Power Supply of Electric Vehicles
  • Bridge Arm Wound Multiphase Flat Magnetic Core Receiver Device for Wireless Power Supply of Electric Vehicles

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specific Embodiment approach 1

[0027] Specific embodiment one: the following combination Figure 1-Figure 4 , Figure 9 and Figure 10 This embodiment will be described. The bridge arm winding type multi-phase flat magnetic core receiving end device for wireless power supply of electric vehicles described in this embodiment includes M×N bottom flat magnetic cores 1 and M connecting bridge arms 2 and M×(N-1) coils 3, where both M and N are integers greater than 1;

[0028] The M′N bottom flat magnetic cores 1 are placed in parallel and at equal intervals; the first connecting bridge arm 2 is sequentially connected across the first bottom flat magnetic core 1, the M+1 bottom flat magnetic core 1, and the first connecting bridge arm 2. Between 2M+1 bottom plate magnetic cores 1,... and (N-1)'M+1 bottom plate magnetic core 1; the second connecting bridge arm 2 is connected across the second bottom end in turn Flat magnetic core 1, M+2 bottom flat magnetic core 1, 2M+2 bottom flat magnetic core 1, ... and (N-...

specific Embodiment approach 2

[0030] Embodiment 2: This embodiment further describes Embodiment 1, and the coil 3 is wound by stranded wire or multi-strand insulated enameled wire.

specific Embodiment approach 3

[0031] Embodiment 3: In this embodiment, Embodiment 1 is further described. N vertical beams and one horizontal beam connecting the bridge arms 2 are connected to form a rectangular frame or an arc frame.

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Abstract

A bridge arm winding type multi-phase flat plate magnetic core receiving end apparatus applied to wireless power supply of electric cars is disclosed, belonging to the technical field of wireless electricity energy transmission. The bridge arm winding multi-phase type flat plate magnetic core receiving end apparatus aims to solve the problems of lower coupling coefficient, worse side deflection capacity, higher magnetic field leakage amount, bad electromagnetic compatibility, higher manufacturing cost and bad electric energy stability between electric cars and guide rails existing in the current wireless power supply apparatuses. The bridge arm winding type multi-phase flat plate magnetic core receiving end apparatus comprises M*N bottom end flat plate magnetic cores, M connecting bridge arms and M*(N-1) coils; the bottom end flat plate magnetic cores are arranged in parallel at the equal intervals in sequence; the M connecting bridge arms crossover the Mth bottom end flat plate magnetic core, the 2Mth bottom end flat plate magnetic core, until the (M*N)th bottom end flat plate magnetic core in sequence; the M connecting bridge arms are arranged in parallel on the bottom end flat plate magnetic cores in sequence; the connecting bridge arms are in a comb-shaped structure; N vertical beams and one horizontal beam are connected uniformly in sequence to form a framework; the horizontal beam is divided equally into N-1 subsections by the N vertical beams; and a coil winds in the middle position of each subsection. The bridge arm winding type multi-phase flat plate magnetic core receiving end is applied to the electric cars.

Description

technical field [0001] The invention relates to a bridge arm winding type multi-phase flat magnetic core receiving end device used for wireless power supply of electric vehicles, and 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: the first is the problem of batteries used in electric vehicles, and the second is the problem of ground charging infrastructure. In the prior art, batteries have many problems, such as large volume, heavy weight, high price, scarcity of materials, poor safety, slow charging speed, and short lifespan. Moreover, the production process of batteries is highly polluting, consuming resources, and destroying the ecological environment. process, which brings certain difficulties to the industrialization of electric vehicles. For the charging infrastructure problem on the ground, on the one hand, due to the long charging time, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F38/14H01F27/24H01F27/30H02J50/10
Inventor 朱春波魏国姜金海汪超
Owner HARBIN INST OF TECH