Receiving terminal with quadrature coils applied to wireless power supply system of mobile equipment

An orthogonal coil and wireless power supply technology, applied in the field of receiving end, can solve the problem of large fluctuation of received power, achieve the effect of small fluctuation range of transmission power, improve coupling coefficient, and reduce the cost of magnetic core

Active Publication Date: 2016-01-20
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem that in the wireless power supply system using a bipolar track at the transmitting end, the receiving end has a zero point of received power and a large fluctuation of the received power depending on the position of the receiving end, and provides a wireless power supply system applied to mobile equipment Receiver with quadrature coils

Method used

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  • Receiving terminal with quadrature coils applied to wireless power supply system of mobile equipment
  • Receiving terminal with quadrature coils applied to wireless power supply system of mobile equipment
  • Receiving terminal with quadrature coils applied to wireless power supply system of mobile equipment

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specific Embodiment approach 1

[0021] Specific implementation mode one: the following combination Figure 1 to Figure 5 Describe this embodiment, the receiving end with quadrature coil applied to the mobile device wireless power supply system described in this embodiment, the receiving end corresponds to the transmitting end using bipolar track in the wireless power supply system; it includes 2n receiving ends Coil 1, n orthogonal coils 2 and multiple sets of bar cores 3, where n is a positive integer;

[0022] 2n receiving coils 1 in turn form n sets of receiving ends in groups of two, and the end of the first receiving coil 1 in each group of receiving ends and the head end of the second receiving coil 1 are wound in series in a figure-eight shape ; n groups of receiving ends are sequentially connected together in parallel along the arrangement direction of the two receiving coils 1 in each group of receiving ends;

[0023] Each group of receiving ends corresponds to an orthogonal coil 2, and each orthog...

specific Embodiment approach 2

[0029] Specific implementation mode two: the following combination Figure 4 Describe this embodiment, this embodiment will further explain Embodiment 1, the length of the receiving coil 1 matches the magnetic pole spacing and the magnetic pole length of the transmitting end, and the length of each group of receiving ends is the difference between the length of the two magnetic poles of the transmitting end and the distance between the two magnetic poles and.

[0030] The center distance between two adjacent receiving coils is the distance from the pole center of the bipolar power supply track used by the transmitting end.

specific Embodiment approach 3

[0031] Embodiment 3: In this embodiment, Embodiment 2 is further described, and the directions of the magnetic fields of adjacent magnetic poles of the transmitting end are opposite.

[0032] The receiving end cooperates with the bipolar transmitting guide rail for wireless transmission of electric energy, which requires that the directions of the magnetic fields on the adjacent magnetic poles of the guide rail are opposite. The magnetic field of the transmitting end and the receiving end realizes the wireless transmission of electric energy through magnetic field coupling; when the receiving coil is directly above the magnetic pole of the transmitting guide rail, the coupling coefficient with the transmitting coil is the largest, and the coupling coefficient between the orthogonal coil and the transmitting guide rail is the smallest; when the receiving coil When the coil is between the magnetic poles of the transmitting guide rail, the orthogonal coil is directly above the mag...

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Abstract

The invention discloses a receiving terminal with quadrature coils applied to a wireless power supply system of mobile equipment, belongs to the technical field of magnetic coupling resonance wireless energy transmission, and aims at solving the problems of a received power zero point and a relatively large received power fluctuation of the receiving terminal along with different positions in a wireless power supply system employing a bipolar track as a transmitting terminal. 2n receiving coils sequentially form n groups of receiving terminal bodies in a manner of two receiving coils as a group; the n groups of receiving terminal bodies are sequentially connected with one another in parallel; each group of receiving terminal bodies correspond to one quadrature coil; each quadrature coil is medially arranged on one group of receiving terminal bodies; a group of strip-shaped magnetic cores is arranged in each group of receiving terminal bodies; a plurality of strip-shaped magnetic cores in each group of strip-shaped magnetic cores are evenly and dispersedly arranged in an outer frame of each receiving terminal body along the width direction; each receiving terminal body and each quadrature coil are respectively matched with one capacitor and are respectively connected with a rectifier bridge; and output after 2n rectifier bridges are connected with one another in parallel is taken as the output of the receiving terminal. The receiving terminal disclosed by the invention is used as the receiving terminal of energy transmission.

Description

technical field [0001] The invention relates to a receiving end with an orthogonal coil applied to a wireless power supply system of a mobile device, and belongs to the technical field of magnetic coupling resonance wireless energy transmission. Background technique [0002] With the outbreak of environmental pollution and oil crisis, the advantages of using electric energy as the power source of mobile devices are becoming more and more prominent. However, there are a lot of problems with the traditional way of using contact power supply or carrying batteries. The contact power supply is limited by the interface. The power supply track and the receiving head of the mobile device have contact loss and require frequent maintenance. Carrying batteries will be restricted by battery volume, weight, and cost, which will affect the mileage of mobile devices. At the same time, sufficient basic charging facilities need to be built on the ground. Inconvenient power supply, poor ba...

Claims

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Application Information

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IPC IPC(8): H02J50/12H01F38/14
Inventor崔淑梅王志远吴绍朋宋凯朱春波魏国
OwnerHARBIN INST OF TECH