Lightweight energy receiving device and energy coupling mechanism for large magnetic field space
An energy receiving and lightweight technology, applied in the direction of circuit devices, transformer/inductor cores, transformer/inductor parts, etc., can solve the conflict of self-inductance coefficient of series equivalent resistance, insufficient miniaturization and light weight of energy receiving devices Quantization, low received power of energy receiving device, etc.
Pending Publication Date: 2022-01-11
CHONGQING UNIV
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Problems solved by technology
[0011] 1) The energy receiving device is not miniaturized and lightweight enough;
[0012] 2) The energy transmission distance is too far, greater than 1 meter so that almost no energy can be received;
[0013] 3) The receiving power of the energy receiving device is too small;
[0014] 4) The energy receiving device has insufficient anti-angular offset capability in space;
[0015] 5) The problem that the power conversion circuit of the energy receiving device is too complicated;
[0016] 6) The winding method and the number of turns of the receiving coil in the energy receiving device lead to a conflict between the series equivalent resistance and the self-inductance coefficient;
[0017] 7) The energy receiving device is too small, and the magnetic core gathering ability is not enough
Method used
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[0045] The embodiment of the present invention will be explained in detail below in conjunction with the accompanying drawings. The examples given are only for the purpose of illustration, and cannot be interpreted as limiting the present invention. The accompanying drawings are only for reference and description, and do not constitute the scope of patent protection of the present invention. limitations, since many changes may be made in the invention without departing from the spirit and scope of the invention.
[0046] Such as image 3As shown, this embodiment provides an energy coupling structure, including a cylindrical energy transmitting coil and a lightweight energy receiving device. After the cylindrical energy transmitting coil is excited, its internal space forms a vertical alternating cylindrical magnetic field space. Several lightweight energy receiving devices are placed in the cylindrical magnetic field space to receive energy. The cylindrical energy transmittin...
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Abstract
The invention relates to the technical field of magnetic coupling resonant wireless energy transmission, and particularly discloses a lightweight energy receiving device and an energy coupling mechanism for a large magnetic field space. The lightweight energy receiving device comprises a cylindrical magnetic core, and an upper plane magnetic core and a lower plane magnetic core which are respectively arranged at the top end and the bottom end of the cylindrical magnetic core, and further comprises a receiving coil wound on the cylindrical magnetic core. The receiving coil is wound into a plurality of plane coils which are sequentially connected along the axial direction of the cylindrical magnetic core, and each planar coil is radially wound on the cylindrical magnetic core. The energy coupling mechanism comprises a cylindrical energy transmitting coil and the lightweight energy receiving device. The light-weight energy receiving device can receive enough energy, does not lead to too large equivalent resistance to limit the power output, meets the power requirement of long-distance wireless electric energy transmission, has certain angle deviation resistance, is smaller in overall size and lighter in weight, and is suitable for the general low-power electric devices.
Description
technical field [0001] The invention relates to the technical field of magnetic coupling resonance wireless energy transmission, in particular to a lightweight energy receiving device and an energy coupling mechanism used in a space with a large magnetic field. Background technique [0002] Wireless power transfer, also known as Contactless Power Transfer (CPT), is a new form and revolutionary advancement of power transfer. figure 1 A schematic block diagram of the structure of the wireless charging system is shown. It mainly includes: power frequency AC to high frequency AC conversion circuit, primary side compensation network and multi-coil matrix at the power supply end, secondary side compensation network and power receiving end coil, high frequency rectification circuit, etc. [0003] Wireless power transmission technology uses electromagnetic field as the medium to realize power transmission. Wireless charging is to place the primary and secondary windings on the gro...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H02J50/12H01F27/26H01F27/30H01F27/24
CPCH02J50/12H01F27/263H01F27/306H01F27/24
Inventor孙跃戴欣苏玉刚王智慧唐春森郭思辰潘佳佳
OwnerCHONGQING UNIV