Rotary wireless electric energy transmission device and system based on three-phase cross winding type curved surface coil
A technology of wireless power transmission and phase coil, which is applied in output power conversion devices, circuit devices, conversion of AC power input to DC power output, etc., and can solve problems such as restricting the development of rotating equipment.
Active Publication Date: 2021-08-24
HARBIN INST OF TECH
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Ring fires or shutdowns in power plants are mostly caused by overheating of the brushes in the generator excitation system, and the contact slip ring system restricts the further development of rotating equipment
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
[0051] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0052] The following describes the rotating wireless power transmission device and system based on the three-phase cross-wound curved surface coil according to the embodiments of the present invention with reference to the accompanying drawings. Rotary wireless power transfer device with curved surface coils.
[0053] figure 1 It is a structural schematic diagram of a rotating wireless power transmission device based on a three-phase cross-wound curved surface coil according to an embodiment of the present invention.
[0054] S...
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 discloses a rotary wireless electric energy transmission device and system based on a three-phase cross winding type curved surface coil, and the device comprises a rotating shaft, a shielding layer, and receiving and transmitting coils which are the same in structure and different in size and are coaxially nested, and the shielding layer is arranged at the outer layer of the rotating shaft; the transmitting coil comprises an A-phase coil, a B-phase coil and a C-phase coil which are uniformly distributed on the outer layer of the shielding layer, the enclosing angle of each phase coil is 360 degrees, and the mechanical angle between any two phase coil windings is 120 degrees; the receiving coil comprises an a-phase coil, a b-phase coil and a c-phase coil which are uniformly distributed inside the transmitting coil and outside the shielding layer, the enclosing angle of each phase coil is 360 degrees, and the mechanical angle between any two phase coil windings is 120 degrees; and the A-phase coil, the B-phase coil and the C-phase coil of the transmitting coil respectively correspond to the a-phase coil, the b-phase coil and the c-phase coil of the receiving coil in spatial positions. The device avoids the problems of serious contact friction, poor reliability and the like due to the adoption of a slip ring power supply mode for the rotating device.
Description
technical field [0001] The invention relates to the technical field of wireless power transmission, in particular to a rotating wireless power transmission device and system based on a three-phase cross-wound curved surface coil. Background technique [0002] In applications such as oil drilling, radar power supply, and helicopter main wing deicing, it is necessary to use conductive slip rings to connect the dynamic and static parts to achieve energy and information transmission. Slip rings mostly use the brush contact method for power supply. After working for a long time, friction occurs, and the contact surface is severely worn, which reduces the reliability of the slip ring. Ring fires or shutdowns in power plants are mostly caused by overheating of the brushes in the generator excitation system, and the contact slip ring system restricts the further development of rotating equipment. [0003] In order to solve the restrictive problems caused by the traditional cable co...
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): H02J50/12H02M7/537
CPCH02J50/12H02M7/537
Inventor 魏国冯静朱春波汪超张一鸣
Owner HARBIN INST OF TECH