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Transmitting assembly and charging assembly structure for wireless charging of electric automobile

A technology of transmitting components and wireless charging, which is applied in electric vehicle charging technology, electric vehicles, parts of transformers/inductors, etc., which can solve problems such as uneven distribution of magnetic field, inability to increase magnetic flux, and inability to guarantee charging time and charging efficiency , to achieve reasonable and compact structural design, improve wireless charging efficiency, and enhance the effect of magnetic permeability

Pending Publication Date: 2020-11-27
上海万暨电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the structural factors of the existing coil itself and the arrangement of the ferrite, the magnetic saturation of the magnetic material and the uneven distribution of the magnetic field cause the passing magnetic flux to be unable to increase, or there is a certain offset between the transmitting coil and the receiving coil The charging time and charging efficiency cannot be guaranteed

Method used

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  • Transmitting assembly and charging assembly structure for wireless charging of electric automobile
  • Transmitting assembly and charging assembly structure for wireless charging of electric automobile
  • Transmitting assembly and charging assembly structure for wireless charging of electric automobile

Examples

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Effect test

Embodiment 1

[0042] Such as figure 1 Shown is an exploded view of the transmitting assembly of the electric vehicle wireless charging assembly according to the embodiment of the present invention. The transmitting assembly includes a non-metallic shell 104 , a transmitting coil 101 , a transmitting magnetic core 102 and a metal shell 103 assembled sequentially from top to bottom. The metal shell is attached to the non-metal shell for installation, which not only serves to increase the structure, but also effectively protects EMI and enhances the cooling capacity of the coil.

[0043] As a preferred embodiment, such as figure 2 As shown, the transmitting magnetic core 102 includes 3 layers of ferrite layers stacked staggeredly, which are respectively the first ferrite layer 43 corresponding to the periphery of the transmitting coil 101 and arranged close to the transmitting coil 101, and is indented from the first ferrite layer 43 The second ferrite layer 44 that is stacked and indented a...

Embodiment 2

[0050] Figure 4 It is a schematic diagram of the structure of a charging assembly for wireless charging of an electric vehicle according to an embodiment of the present invention. Including setting the above-mentioned transmitting assembly 10 and receiving assembly 20 in parallel, such as Figure 5 As shown, the receiving assembly 20 includes a metal casing 203 , a receiving magnetic core 202 , a receiving coil 201 and a non-metallic casing 203 installed sequentially from top to bottom.

[0051] As a further preferred embodiment, such as Image 6 As shown, the transmitting coil 101 or the receiving coil 201 is a hollow helical structure wound by at least two Litz wires 30 of equal length. Each Litz wire 30 is wound with the same number of coil turns, and each turn of Litz wire 30 has the same bending radius at the bending position 105 . The two ends of the first Litz wire 305 and the second Litz wire 306 are tangent at the transition point 307 radians, and the two adjacent...

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Abstract

The invention discloses a transmitting assembly for wireless charging of an electric automobile. The transmitting assembly comprises a non-metal shell, a transmitting coil, a transmitting magnetic core and a metal shell that are sequentially assembled from top to bottom. The transmitting magnetic core comprises at least two ferrite layers which are stacked in a staggered mode. Each ferrite layer is formed by splicing a plurality of ferrites; the ferrite layer corresponding to the periphery of the transmitting coil is close to the transmitting coil; the rest ferrite layers are sequentially arranged in a retracting manner corresponding to the central position of the transmitting coil and are gradually far away from transmitting coil. The invention further discloses a charging assembly for wireless charging of the electric automobile, wherein the charging assembly comprises the transmitting assembly and the receiving assembly which are arranged in parallel, the problem that a transmittingmagnetic field is uneven in distribution is solved, magnetic saturation is inhibited, and the wireless charging efficiency is improved.

Description

technical field [0001] The invention relates to the field of wireless charging, in particular to a structure of a transmitting component and a charging component for wireless charging of an electric vehicle. Background technique [0002] At present, the application of wireless charging technology for electric vehicles on the market is becoming more and more popular. Compared with wired charging technology, its energy transmission does not require power distribution cables, so it is more convenient and safer. Wireless charging technology is based on inductive coupling technology for energy exchange between the transmitting component and the receiving coil. Therefore, the design of charging components for wireless charging determines the power requirements and efficiency requirements required by electric vehicles. Due to the structural factors of the existing coil itself and the arrangement of the ferrite, the magnetic saturation of the magnetic material and the uneven distri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/24H01F27/245H01F27/28H01F27/30H01F27/08H01F38/14H02J50/10B60L53/12
CPCB60L53/12H01F27/08H01F27/24H01F27/245H01F27/28H01F27/2823H01F27/2828H01F27/2876H01F27/306H01F38/14H02J50/10Y02T10/70Y02T10/7072Y02T90/14
Inventor 杨国勋孙建寇秋林张建康钟财陈小祥梁华芳
Owner 上海万暨电子科技有限公司
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