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A wireless charging system for electric vehicles

A technology of wireless charging and electric vehicles, applied in the direction of electric vehicle charging technology, electric vehicles, charging stations, etc., can solve the problems of low wireless charging efficiency, inapplicability of fast charging, etc., and achieve the effect of strong applicability

Active Publication Date: 2022-04-08
NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the wireless charging of electric vehicles still stays in the wireless charging when the vehicle is parked. However, due to the low efficiency of wireless charging, this wireless charging technology cannot be applied to the fast charging of the vehicle during use.

Method used

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  • A wireless charging system for electric vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The invention provides a wireless charging system for electric vehicles, such as figure 1 As shown, it includes a charger 1 pre-buried in the roadbed and a receiver 2 installed on the chassis of the vehicle 4, and the receiver 2 and the charger 1 are mutually adapted so that the vehicle 4 drives the vehicle on the chassis of the vehicle 4. When the receiver 2 moves above the charger 1 , the charger 1 is turned on and charges the receiver 2 through wireless charging technology, and the receiver 2 is electrically connected to the storage battery or the battery pack inside the vehicle 4 . The aforementioned adaptation of the receiver 2 to the charger 1 means that the receiver 2 and the charger 1 can effectively transmit electric energy wirelessly when the charger 1 is turned on.

Embodiment 2

[0025] Its structure is basically the same as that of Embodiment 1, the difference is that: the chassis of the vehicle is provided with an accommodating cavity 8 for accommodating the receiver 2, and a lifting mechanism 3 is provided in the accommodating cavity 8, taking the lifting cylinder as an example, the described The receiver 2 is installed on the piston rod of the lift cylinder, so that the receiver 2 is driven to be stored in the accommodation cavity 8 or moved vertically downwards to the road below the chassis of the vehicle 4 through the piston rod of the lift cylinder. Reducing the distance between the receiver 2 on the vehicle 4 and the charger 1 under the roadbed through the lifting mechanism 3 can make the electrical gap between the receiver 2 and the charger 1 small, so the loss in the wireless charging process is small, and the charging process more efficient.

[0026] As an improvement, the lifting cylinder can use a motor to drive the screw lift, that is, th...

Embodiment 3

[0028] Its structure is basically the same as that of the second embodiment, except that the wireless charging system further includes a control module 5 integrated into the central control computer of the vehicle 4 . The control module 5 is electrically connected to the driver of the lifting mechanism 3. Taking the electrically driven screw lift as an example, the motor of the screw lift is electrically connected to the control module 5, thus giving a control command through the control module 5, so The lifting mechanism 3 performs corresponding lifting action or static locking according to the control command. As a preference, factors such as the speed and stroke of the lifting action of the lifting mechanism 3, and the combined actions formed by different speeds and strokes can be completed by corresponding control instructions. It is up to you to determine which specific control instructions are suitable for different application scenarios. Not listed one by one.

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Abstract

The invention discloses a wireless charging system for electric vehicles, which is characterized in that it includes a charger and a receiver, the receiver is installed on the bottom of the vehicle through a lifting mechanism, the vehicle is provided with a control module, and the following steps are also included : S1. Determine whether there is an open charger under the receiver, and if so, send a rechargeable signal; S2. The control module receives the rechargeable signal, and then drives the receiver down to the working position through the lifting mechanism; S3. Judging the power of the storage battery in the vehicle, and sending a full power signal when the power reaches full value; S4. The control module receives the full power signal, and then controls the lifting mechanism and the receiver on the lifting mechanism to reset. The invention provides a wireless charging system for an electric vehicle, which can enable the vehicle to be effectively charged whether it is stationary or running.

Description

technical field [0001] The invention relates to the technical field of new energy vehicles, in particular to a wireless charging system for electric vehicles. Background technique [0002] The wireless charging technology of electric vehicles is a cutting-edge technology with the rise of new energy vehicles. However, in the prior art, the wireless charging of electric vehicles still stays in the wireless charging when the vehicle is parked. However, due to the low efficiency of wireless charging, this wireless charging technology cannot be applied to fast charging during the use of the vehicle. The industry urgently needs a technology that can realize fast charging of vehicles in the middle, so that electric vehicles can meet the needs of long-distance driving. Contents of the invention [0003] The present invention aims to solve one of the technical problems in the related art at least to a certain extent: to provide a wireless charging system for an electric vehicle, w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L53/38B60L53/34
CPCB60L53/38B60L53/34Y02T10/70Y02T10/7072Y02T90/12
Inventor 张智焕
Owner NINGBO INST OF TECH ZHEJIANG UNIV ZHEJIANG
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