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Directional wireless energy transmission method of spatial linear polarization universal alternating magnetic field

A technology of wireless energy transmission and alternating magnetic field, which is applied in the direction of electrical components, circuit devices, etc., can solve the problems of sensitivity to position deviation, occupying the expansion space of capsule robots, and inability to realize efficient transmission of directional energy.

Active Publication Date: 2017-03-29
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantage is that the transmission distance is too short and it is sensitive to position offset
Yan Guozheng of Shanghai Jiaotong University and others improved the loosely coupled transformer model applied to the capsule robot, changing the induction coil inside the robot to a three-dimensional orthogonal winding, which effectively overcomes the shortcomings of the original model that are sensitive to attitude offsets, but The three-dimensional structure induction coil is relatively large in size, which will occupy the expansion space reserved by the capsule robot for devices such as drug delivery and treatment.
[0007] Due to the shortcomings of the above three wireless energy transmission methods, especially the inability to achieve efficient directional energy transmission

Method used

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  • Directional wireless energy transmission method of spatial linear polarization universal alternating magnetic field
  • Directional wireless energy transmission method of spatial linear polarization universal alternating magnetic field
  • Directional wireless energy transmission method of spatial linear polarization universal alternating magnetic field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] By passing through the three-axis quadrature Helmholtz coil AC angular frequency ω=5×10 5 rad / s, that is, the frequency f=79.6kHz, the x-axis coil is the reference coil; the amplitude of the induced electromotive force required by the energy receiving device ε m =5V, the number of turns of the induction coil N=100, the cross section is circular and the area A=1cm 2 , the AC resistance at f=79.6kHz is 3.4Ω, and the axial direction is taken as an example to describe in detail the process of directional wireless energy transmission to the energy receiving device by using the space line polarized universal alternating magnetic field.

[0085] In the first step, the axis direction information of the induction coil in the energy receiving device is used as the direction of the space line polarization magnetic vector constituting the space line polarization universal alternating magnetic field, namely , where, α=60°, β=120°, and γ=135° are the direction angles between the ax...

Embodiment 2

[0124] By passing through the three-axis quadrature Helmholtz coil AC angular frequency ω=5×10 5 rad / s, that is, the frequency f=79.6kHz, the y-axis coil is the reference coil; the amplitude of the induced electromotive force required by the energy receiving device ε m =5V, the number of turns of the induction coil N=100, the cross section is circular and the area A=1cm 2 , the AC resistance at f=79.6kHz is 3.4Ω, the axis direction is an example, and the orientation of the energy receiving device by using the space line polarized universal alternating magnetic field is described in detail The process of wireless energy transfer.

[0125] In the first step, the axis direction information of the induction coil in the energy receiving device is used as the direction of the space line polarization magnetic vector constituting the space line polarization universal alternating magnetic field, namely , wherein, α=β=γ=109.47° are respectively the orientation angles between the axis ...

Embodiment 3

[0146] By passing through the three-axis quadrature Helmholtz coil AC angular frequency ω=5×10 5 rad / s, that is, the frequency f=79.6kHz, the z-axis coil is the reference coil; the amplitude of the induced electromotive force required by the energy receiving device ε m =5V, the number of turns of the induction coil N=100, the cross section is circular and the area A=1cm 2 , the AC resistance at f=79.6kHz is 3.4Ω. Take the axial direction as an example, and describe in detail the orientation of the energy receiving device by using the space line polarized universal alternating magnetic field The process of wireless energy transfer.

[0147] The first step is to use the axis direction information of the induction coil in the energy receiving device as the direction of the space line polarization magnetic vector that constitutes the space line polarization universal alternating magnetic field, that is, , wherein, α=48.19°, β=131.81°, γ=70.53° are the direction angles between th...

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Abstract

The invention belongs to the technical field of automatic engineering, and relates to a directional wireless energy transmission method of a spatial linear polarization universal alternating magnetic field. The invention provides a driving method for a spatial linear polarization alternating magnetic field with a randomly-adjusted direction and superposed by a three-axis orthogonal Helmholtz coil and an operation means. The superposed linear polarization magnetic vector direction is coincided with an induction coil axis and electromagnetic induction is generated by adjusting current amplitudes and phases of three alternating currents in the three-axis orthogonal Helmholtz coil, the power supply demand of an energy receiving device is satisfied, so that high-efficiency, safe and stable directional wireless energy transmission is achieved; and meanwhile, the size of the induction coil internally arranged in the energy receiving device can be reduced, and a solid foundation is laid for function extension of a capsule robot in future.

Description

technical field [0001] The invention belongs to the technical field of automation engineering, and relates to a directional wireless energy transmission method of space line polarization universal alternating magnetic field. Background technique [0002] With the rapid development of science and technology and the urgent needs of the medical field, capsule robots that replace traditional endoscopic technology have emerged as the times require. A capsule robot is a micro-robot that encapsulates components such as a camera, driver, and battery into a capsule-sized plastic shell. Its shell has been specially treated to be non-toxic, harmless, corrosion-resistant, and swallowable. After the patient takes the capsule robot, the doctor can use the image returned by the capsule robot to perform inspection, diagnosis and minimally invasive surgery on the patient's digestive tract. The advantage of the capsule robot is that it can conduct a non-invasive and painless comprehensive i...

Claims

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Application Information

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IPC IPC(8): H02J50/12
Inventor 张永顺杨大旻杨慧远黄云奎
Owner DALIAN UNIV OF TECH
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