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Detection coil assembly, energy transfer coil assembly and detection system for detecting electrically conductive foreign bodies

A detection coil and energy transmission technology, applied in the field of detection systems for identifying conductive variants, can solve problems such as increasing manufacturing costs and damaging the reliability of the detection system

Active Publication Date: 2015-03-04
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Higher requirements in the field of kinetics and stability in time of evaluation can increase manufacturing costs and impair the reliability of detection systems for identifying conductive variants

Method used

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  • Detection coil assembly, energy transfer coil assembly and detection system for detecting electrically conductive foreign bodies
  • Detection coil assembly, energy transfer coil assembly and detection system for detecting electrically conductive foreign bodies
  • Detection coil assembly, energy transfer coil assembly and detection system for detecting electrically conductive foreign bodies

Examples

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Embodiment Construction

[0035] The examples set forth in detail below demonstrate preferred embodiments of the invention.

[0036] figure 1The illustrated energy transmission system 10 shows a vehicle 90 above a stationary, inductive energy transmission station 11 . In order to transfer energy from a stationary electrical source 12 to the vehicle 90, the energy transfer station 11 comprises: an energy transmitting coil 14 embedded in a ferrite yoke 16; a transmitter 20 for generating an alternating voltage; and coupling capacitor 22. The energy transmission coil 14 can be, for example, a flat coil. In order to receive the energy supplied by the energy transmitter coil 14 by means of the variable magnetic field 51 , an energy receiver coil 94 is arranged in the vehicle floor 92 , which is embedded in a ferrite yoke 96 . The energy receiving coil 94 can be, for example, a flat coil. To charge the vehicle battery 95 , the energy receiving coil 94 is connected via a capacitor 97 and a rectifier 98 to...

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PUM

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Abstract

In order to detect electrically conductive foreign bodies (80) in the region of an energy transmitter coil (14) a detection coil assembly (34) is provided, which comprises at least one first multipole-detection coil (31, 32) having at least two mutually opposite windings (35, 36). An energy transfer coil assembly (13) for an inductive energy transfer system (10) is also provided, the energy transfer coil assembly (13) comprising an energy transfer coil (14, 94) for transferring energy. The energy transfer coil assembly (13) also comprises a detection coil assembly (34) according to the invention. Furthermore, a detection system (30) for detecting electrically conductive foreign bodies (80) in the region of an energy transmitter coil (14) is provided. The detection system (30) comprises an energy transfer coil assembly (13) according to the invention and is designed to detect detection signals (54) in the electrically conductive foreign body (80) to be detected, said detection signals being excited in the electrically conductive foreign body (80) by means of the energy transfer coil (14), the detection coil assembly (34) or an additional detection transmitter coil.

Description

technical field [0001] The invention relates to a search coil assembly for detecting conductive foreign objects in the region of an energy transmitting coil. Conductors are usually metal parts. Basically, however, the conductive variants to be identified can also include conductive non-metallic raw materials, for example conductive liquids. [0002] Furthermore, the invention relates to an energy transfer coil arrangement for an inductive energy transfer system, wherein the energy transfer coil arrangement includes an energy transfer coil for transferring energy. [0003] Furthermore, the invention relates to a detection system for identifying conductive foreign bodies in the region of an energy transmitting coil. Background technique [0004] Inductive power transfer systems have been developed for charging (or discharging) the batteries of electric vehicles. It consists of a coil pair operated by means of a resonant converter. A suitable power transmitter coil permanen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60L3/00B60L11/18H02J7/02G01V3/10
CPCB60L11/1833G01V3/104Y02T90/125B60L11/182Y02T90/14Y02T10/7241Y02T90/121B60L2210/40Y02T90/127Y02T10/7005B60L3/00B60L2270/147Y02T90/12B60L11/1829B60L2210/30Y02T90/122B60L53/124B60L53/36B60L53/38Y02T10/70Y02T10/7072Y02T10/72
Inventor 马库斯·韦斯特安德亚斯·克鲁格阿克塞尔·沃姆恩特彼得·迪茨萨沙·法斯托马斯·科马于尔根·尼斯特勒
Owner SIEMENS AG
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