Electric power reception device, electric power transmission device, and electric power transfer system
A technology of power receiving and power transmission, which is applied in the direction of circuit devices, electromagnetic wave systems, battery circuit devices, etc., and can solve problems such as difficult handling of high-frequency power and complicated control of peripheral devices
Inactive Publication Date: 2014-06-25
TOYOTA JIDOSHA KK
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0008] High frequency power is difficult to handle and can complicate development of peripheral devices and control during power delivery
Method used
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[0056] will refer to Figure 1 to Figure 28 A power receiving device, a power transmission device, and a power transmission system including the power transmission device and the power receiving device according to embodiments of the present invention are described. Although a plurality of embodiments are described here, the present invention may also include configurations obtained by appropriately combining configurations described in the respective embodiments.
[0057] First, a first embodiment of the present invention will be described with reference to the drawings. figure 1 is a schematic diagram schematically showing the power receiving device, the power transmission device, and the power transmission system according to the first embodiment.
[0058] The power transmission system according to the first embodiment includes: an electric vehicle 10 including a power receiving device 40 , and an external power feeding device 20 including a power transmission device 41 . ...
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Abstract
An electric power reception device includes an electric power receiver that receives electric power in a non-contact manner from an electric power transmitter that is provided externally. The electric power receiver includes a first coil that is formed by winding a first coil wire (45) with a pitch (P1). The first coil (11) includes a first portion (80a) and a second portion (80b) that are adjacent to the first portion (80a) with the pitch (P1). The first portion (80a) and the second portion (80b) are arranged in a direction of arrangement (AD1).; A cross section of the first coil wire (45) that is perpendicular to a direction of extension of the first coil wire (45) is configured such that a length of a first projection line (PD1) that is obtained by projecting the cross section from the direction of arrangement (AD1) onto a first imaginary plane (VP1) that is perpendicular to the direction of arrangement (AD1) is larger than a length of a second projection line (PD2) that is obtained by projecting the cross section from a direction (VD1) that is perpendicular to the direction of arrangement (ADl) onto a second imaginary plane (VP2) that is perpendicular to the first imaginary plane (VP1).
Description
technical field [0001] The present invention relates to a power receiving device, a power transmission device, and a power transmission system. Background technique [0002] In recent years, attention has been paid to hybrid vehicles and electric vehicles that drive drive wheels using electric power from a battery or the like based on environmental considerations. [0003] In particular, wireless charging, that is, charging a battery in a non-contact manner without using a plug or the like, has started to be noticed in use of an electric vehicle having a battery. Various types of non-contact charging schemes have been proposed recently. Among these solutions, wireless power transmission or non-contact power transmission has become a bright spot, that is, using resonance phenomenon to transmit power in a non-contact manner. [0004] Japanese Patent Application Publication No. 2010-73976 (JP2010-73976A) describes an example of a wireless power transmission system using elect...
Claims
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IPC IPC(8): B60L11/18H01F38/14B60L11/12H02J5/00H02J7/02H01F27/00H01F5/02H02J17/00B60L50/15
CPCB60L2210/30B60L11/182H02J5/005Y02T10/7005B60L11/1829Y02T90/14Y02T10/7241Y02T90/127Y02T90/125H01F27/006Y02T90/12B60L11/1833Y02T10/7216H02J7/025B60L2210/10Y02T10/7077Y02T90/122H01F38/14B60L11/123Y02T10/7088Y02T10/6217H01F5/02H02J17/00Y02T10/7072B60L50/61B60L53/38B60L53/36H02J50/12B60L53/126H02J50/005Y02T10/62Y02T10/72Y02T10/70
Inventor 市川真士中村达石田将也渡边俊明天野也寸志
Owner TOYOTA JIDOSHA KK