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Contact-less power transmitter and contact-less power transmission system

A power transmission, non-contact technology, applied in transmission systems, near-field transmission systems, circuit devices, etc., can solve the problems of troublesome management, messy state, trouble, etc., and achieve the effect of simple structure

Inactive Publication Date: 2013-05-08
RESONAC CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in such a conventional charging method, it is cumbersome for the user to plug and unplug the AC adapter from the connector of the portable electronic device, and damage to the connector part is likely to occur.
In addition, since the electrical specifications of each portable electronic device are different, AC adapters must be prepared for each portable electronic device, and there is a problem that various AC adapters around the outlet become cluttered and management becomes troublesome

Method used

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  • Contact-less power transmitter and contact-less power transmission system
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  • Contact-less power transmitter and contact-less power transmission system

Examples

Experimental program
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Effect test

Embodiment approach 1

[0096] Below, use Figure 1 to Figure 12 A non-contact power transmission system according to a first embodiment of the present invention will be described.

[0097] In this embodiment, a non-contact power transmission device will be described by taking a digital television (DTV: Digital Television) capable of displaying 3D content as an example. The operation of receiving a synchronization signal from the digital television and opening and closing the liquid crystal shutters of the left and right lenses in synchronization with it is described. A non-contact power transmission system composed of active shutter 3D glasses will be described as a non-contact power reception device. In addition, in particular, it is assumed that there are a plurality of 3D glasses that are non-contact power receiving devices that are not to be charged.

[0098] First, use figure 1 and figure 2 The configuration of the contactless power transmission system according to the first embodiment of t...

Embodiment approach 2

[0240] Below, use Figure 13 A non-contact power transmission system according to a second embodiment of the present invention will be described.

[0241] Figure 13 It is a flowchart showing the determination processing of the state of charge in the second embodiment.

[0242] In the non-contact power transmission system of this embodiment, the non-contact power transmission device is composed of a digital television capable of displaying 3D content, and the non-contact power reception device is composed of 3D glasses, as in the first embodiment.

[0243] In the first embodiment, in Figure 6 S403, such as Figure 7 As shown, in order to determine whether it is a power transmission target, the power transmission target detection unit 813 is composed of a reflection amount measurement circuit, and the power transmission target detection unit 813 performs a power transmission target device based on the ratio of the incident power amount to the reflected power amount, that is...

Embodiment approach 3

[0254] Below, use Figure 14 to Figure 15 A non-contact power transmission system according to a third embodiment of the present invention will be described.

[0255] In the non-contact power transmission system of this embodiment, the non-contact power transmission device is composed of a digital television capable of displaying 3D content, and the non-contact power receiving device is composed of 3D glasses, which is the same as the first embodiment. The method and structure are also roughly the same.

[0256] In this embodiment, differences from the first embodiment will be mainly described.

[0257] In this embodiment, the video signal receiving / reproducing unit 220 of the digital television 1 displays the state of power transmission (charging) to 3D glasses which is a non-contact power receiving device.

[0258] First, use Figure 14 The configuration of the contactless power transmission system according to the first embodiment of the present invention will be describ...

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Abstract

The invention provides a contact-less power transmitter and a contact-less power transmission system. A transmitting circuit of the contact-less power transmitter includes both an excitation element and a resonance element, both corresponding to one of storage pockets, and transmits electric power from a specified storage pocket under a control signal from a transmission controller. At this time, the transmission controller, upon insertion of an object being detected in a storage detector, uses information from an output detector to determine the object to be a destination device to which the power is to be transmitted, and controls the corresponding transmitting circuit to transmit the power. For example, the information from the output detector includes either a transmission rate associated with contact-less power transmission, or a differential between a load modulation period of the contact-less power receiver and that of the contact-less power transmitter. In addition, the transmission controller acquires charge information on the contact-less power receiver inserted in one of the storage pockets and controls the power transmission of the transmitting circuit.

Description

technical field [0001] The present invention relates to a non-contact power transmission device and a non-contact power transmission system, and particularly relates to a non-contact power transmission device and a non-contact power transmission suitable for charging 3D glasses used in digital televisions, and miniaturizing the equipment to be charged. system. Background technique [0002] Nowadays, among portable electronic devices such as portable terminals, cameras, and personal computers, devices equipped with rechargeable batteries and used for charging are common. These electronic devices use a charger called an AC adapter to convert household AC power to direct current, and use a charging circuit built into the electronic device to charge a rechargeable battery in the electronic device. [0003] Also, in a new field, there are active shutter type 3D glasses that operate in synchronization with a 3D video signal of a 3D television. The 3D glasses open and close the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/02H02J7/00H04N13/332
CPCH02J7/025H04B5/0037H02J5/005H02J17/00H02J7/00302H02J50/12H02J50/40
Inventor 田中真愉子城杉孝敏
Owner RESONAC CORPORATION
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