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Tunable wireless power transmission method, device and system

A wireless power transmission and adjusted technology, applied in circuit devices, electrical components, etc., can solve the problems of detuning of driving frequency and resonant frequency, non-adjustable resonance parameters, reducing transmission efficiency of wireless power transmission system, etc., so as to avoid detuning. , the effect of improving transmission efficiency

Active Publication Date: 2019-02-01
HAIER GROUP TECHN R&D CENT +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a tunable wireless power transmission method, device and system to overcome the unadjustable resonance parameters in the prior art when the load power changes, resulting in detuning of the drive frequency and resonance frequency, thereby reducing wireless power. The problem of the transmission efficiency of the transmission system

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  • Tunable wireless power transmission method, device and system
  • Tunable wireless power transmission method, device and system
  • Tunable wireless power transmission method, device and system

Examples

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Embodiment 1

[0035] Embodiment 1 of the present invention discloses a tunable wireless power transmission emission method, such as figure 1 shown, including:

[0036] Step S101, obtaining the current load power;

[0037] Step S102, detecting whether the power segment where the current load power is located is the same load power segment as compared with the power segment where the load power is located at the previous moment;

[0038] It should be noted that if it is detected that the power segment where the current load power is located is the same load power segment as the power segment where the load power is located at the previous moment, then the current drive power and resonance parameters are maintained.

[0039] In step S102, the specific process of detecting whether the power segment where the current load power is located is the same load power segment as compared with the power segment where the load power is located at the previous moment includes:

[0040] First, obtain the...

Embodiment 2

[0047] In order to more clearly explain the tunable wireless power transmission method disclosed in Embodiment 1 of the present invention, the tunable wireless power transmission method disclosed in Embodiment 2 of the present invention is based on the disclosure in Embodiment 1 of the present invention. The technical solution is illustrated with an example.

[0048] The load power range is 0 to 600 watts, and the load power threshold is 200 watts and 400 watts, then the load power in the range of 0 to 199 watts is in the low load power range, and the load power in the range of 200 to 399 watts is in the middle load power range In the range of 400-600 watts, the load power is in the high load power range.

[0049] Detect that the current load power is 99 watts, then the power section where the current load power is located is the low load power section, and record it.

[0050] If the load power at the previous moment is 128 watts, then the power section of the load power at t...

Embodiment 3

[0054] Embodiment 1 of the present invention discloses a tunable wireless power transmission transmitting method. Correspondingly, Embodiment 3 of the present invention discloses a tunable wireless power transmission transmitting device, such as figure 2 As shown, it includes: a load power detection module 1 and a load adjustment module 2 connected to the load power detection module 1;

[0055] The load power detection module 1 is used to detect whether the power segment where the current load power is located is the same load power segment as compared with the power segment where the load power is located at the previous moment;

[0056] Wherein, the load power detection module 1 includes:

[0057] Detecting the storage module 11, obtaining the current load power and the power threshold for the current load power, judging the current load power segment where the current load power is located according to the power threshold, and recording;

[0058] The comparing and judging m...

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Abstract

The invention discloses a tunable wireless power transmission launching method, device and system. The tunable wireless power transmission transmission method includes: detecting whether the power segment where the current load power is located is the same load power segment as compared with the power segment where the load power is located at the previous moment; When the power section is a different load power section, adjust the drive frequency and resonance parameters. Through the tunable wireless power transmission transmission method, device and system disclosed in the present invention, when the load power is in different load power segments, the resonance parameters and driving frequency are adjusted to avoid detuning, thereby improving the wireless power transmission system. transmission efficiency.

Description

technical field [0001] The present invention relates to the technical field of power transmission, in particular to a tunable wireless power transmission transmitting method, device and system. Background technique [0002] With the improvement of users' requirements for power consumption, efficient and convenient wireless power transmission has become the mainstream development direction of power transmission. [0003] In the prior art, a frequency conversion method is used to control the wireless power transmission system for power transmission. When the wireless power transmission system using this method corresponds to loads of different power segments, the resonance parameters can only be configured for a specific load point. When the system works on loads in other power segments, the resonance parameters cannot be set for the current load point, resulting in a mismatch between the driving frequency and the resonance frequency, thereby reducing the transmission efficie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J50/12
CPCH02J50/12
Inventor 李聃孙会龙海岸秦超娄兵兵
Owner HAIER GROUP TECHN R&D CENT
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