Mining wireless power transmission device with offset emission angle
A wireless power transmission and transmission angle technology, applied in circuit devices, electrical components, etc., can solve the problem of low received power of electrical equipment, and achieve the effects of low cost and space occupancy, high efficiency and simple structure
Pending Publication Date: 2022-03-25
CHINA UNIV OF MINING & TECH (BEIJING)
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] Although the omni-directional wireless transmission system solves the restrictive problem of electric energy transmission caused by the movement of underground electrical equipment, the magnetic field emitted by the multi-dimensional transmitting end is too evenly distributed, resulting in relatively small receiving power of electrical equipment in all directions, and it cannot long distance wireless power transfer
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0030] In order to make the technical problems to be solved in the present invention, technical solutions and advantages clearer, the following will be described in detail in conjunction with the accompanying drawings and specific embodiments. Personnel can realize with reference to prior art.
[0031] Aiming at the problems of low transmission efficiency and short transmission distance of the existing wireless power transmission device, the present invention provides a wireless power transmission device with offset emission angle.
[0032] Such as figure 1 As shown, this embodiment provides a mining wireless power transmission device with a transmission angle offset, including:
[0033] A first transmitting coil 3 , a second transmitting line 6 and a receiving coil 8 .
[0034] Wherein, the first transmitting coil 3 and the second transmitting coil 6 are intersected according to a preset angle to form non-orthogonal two-dimensional transmitting coils.
[0035] The receivin...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a mining wireless power transmission device with an offset transmitting angle, and belongs to the technical field of wireless power transmission, the mining wireless power transmission device comprises a first transmitting coil, a second transmitting coil and a negative refractive index metamaterial, the included angle between the first transmitting coil and the second transmitting coil is set to be 18 degrees, and the negative refractive index metamaterial is arranged between the first transmitting coil and the second transmitting coil. And the negative refractive index metamaterial covers the transmitting end of the two-dimensional transmitting coil for wireless transmission, so that the problem that the receiving power of the receiving end in each direction is relatively small due to the fact that the magnetic field diverged to the periphery by the transmitting end of the omnidirectional wireless power transmission system is excessively uniformly distributed is solved; and long-distance wireless power transmission cannot be carried out in a specified direction. The technical effects of enhancing magnetic field superposition in the included angle range, improving the wireless power transmission efficiency of the electrical equipment under the mine and increasing the transmission distance are achieved.
Description
technical field [0001] The invention relates to a non-contact electric energy transmission technology, in particular to a mine-used wireless power transmission device with an offset emission angle. Background technique [0002] The power supply of underground electrical equipment in coal mines currently adopts two methods: wired cables and batteries, or a mixture of the two. All kinds of electrical equipment are concentrated in the narrow tunnel of the mine, and the electrical equipment in the mine must be moved regularly with the advancement of the working face. The wired power supply cable greatly increases the workload of equipment relocation. Equipment is difficult to maintain. In areas where wired cables are difficult to reach, such as the return air corner of the coal mining face, the sensor can only be powered by the battery, and the underground portable detector or mobile communication equipment is also powered by the battery, in order to avoid damage to the explosi...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H02J50/12H02J50/90H02J50/40
CPCH02J50/12H02J50/90H02J50/40
Inventor 赵宇波崔振宇侯钰慧田子建
Owner CHINA UNIV OF MINING & TECH (BEIJING)