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A wireless charger with adjustable radius of transmitting coil

A technology of wireless chargers and transmitting coils, which is applied in the direction of coils, collectors, circuits, etc., can solve the problems of different, inconvenient user experience, and the charging efficiency of wireless chargers cannot reach the optimal value.

Active Publication Date: 2016-01-27
ZHONGSHAN BAOLIJIN ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Currently, the smart terminal is basically charged with a conventional split charger. The charging specifications and connector definitions are different, resulting in a large waste of charger and data cable resources, and only one smart terminal can be charged at a time; device charging It is necessary to connect the power supply and the cable when charging, and the cable needs to be plugged and unplugged during the charging process, which is inconvenient for the user experience
[0003] Wireless chargers are beginning to appear in the industry. However, since the radius of the transmitting coil is fixed, the devices that need to be charged have different specifications, especially the A4WP standard wireless charger, which uses the same coil to charge one device or multiple devices. As a result, the charging efficiency of the wireless charger cannot reach the optimal value

Method used

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  • A wireless charger with adjustable radius of transmitting coil
  • A wireless charger with adjustable radius of transmitting coil
  • A wireless charger with adjustable radius of transmitting coil

Examples

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Comparison scheme
Effect test

Embodiment 1

[0022] A wireless charger with an adjustable radius of the transmitting coil, comprising a winding 1 and a winding structure 2, the winding 1 is wound on the winding structure 2, the winding structure 2 includes a rotating shaft 3, and can be arranged on the rotating shaft 3 The telescopic diameter rod 4 is arranged with n turns of winding wire 1 along the axial direction of the rotating shaft 3, and the number of n is 2. The number of n can also be 3 or more according to needs.

[0023] The diameter rod 4 rotates around the rotation axis 3 while expanding and contracting, so that the radius of the winding wire changes. When there is only one device that needs to be charged on the charging board, the radius of the winding wire becomes smaller, and the coil at the transmitting end is shrunk to achieve the best Charging efficiency; when there are multiple devices that need to be charged, the radius of the winding becomes larger, the charging coil is enlarged, and the output powe...

Embodiment 2

[0029] A wireless charger with an adjustable radius of the transmitting coil, comprising a winding 1 and a winding structure 2, the winding 1 is wound on the winding structure 2, the winding structure 2 includes a rotating shaft 3, and can be arranged on the rotating shaft 3 The telescopic diameter rod 4 is arranged with n turns of winding wire 1 along the axial direction of the rotating shaft 3, and the number of n is 2. The number of n can also be 3 or more according to needs.

[0030] The diameter rod 4 rotates around the rotation axis 3 while expanding and contracting, so that the radius of the winding wire changes to meet the charging requirements of devices to be charged with different powers, so that the charging efficiency can always reach the optimum value.

[0031] In this embodiment, the diameter rod 4 includes two radius rods, and the middle part of the width direction of the two radius rods is provided with a bar-shaped clamping groove 5 along the radial direction...

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Abstract

The invention relates to the technical field of wireless charging, in particular to a wireless charger allowing the radius of a transmitting coil to be adjustable. The wireless charger allowing the radius of the transmitting coil to be adjustable comprises a winding wire and a winding structure, wherein the winding wire is wound around the winding structure comprising a rotary shaft and a telescopic diameter rod, the diameter rod is arranged on the rotary shaft, n circles of the winding wire are arranged on the diameter rod in the axial direction of the rotary shaft, and the n is greater than two. The diameter rod rotates around the rotary shaft when being telescopic, and therefore the radius of the winding wire changes to meet charging requirements of to-be-charged equipment with different types of power, and charging efficiency always can reach the optimum value.

Description

technical field [0001] The invention relates to the technical field of wireless charging, in particular to a wireless charger with an adjustable radius of a transmitting coil. Background technique [0002] Currently, the smart terminal is basically charged with a conventional split charger. The charging specifications and connector definitions are different, resulting in a large waste of charger and data cable resources, and only one smart terminal can be charged at a time; device charging It needs to be connected to the power supply and cable when charging, and the cable needs to be plugged and unplugged during the charging process, which is inconvenient for the user experience. [0003] Wireless chargers are now appearing in the industry. However, since the radius of the transmitting coil is fixed, the devices that need to be charged have different specifications, especially the A4WP standard wireless charger, which uses the same coil to charge one device or multiple devic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H01F5/00
Inventor 贾军马岩
Owner ZHONGSHAN BAOLIJIN ELECTRONICS