Check patentability & draft patents in minutes with Patsnap Eureka AI!

coil device

A coil device and coil layer technology, applied in the direction of coils, circuit devices, transformers/inductor coils/windings/connections, etc., can solve problems such as power efficiency decline, and achieve the effect of suppressing the generation of Joule heat

Active Publication Date: 2020-11-03
IHI CORP
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If Joule heat is generated, power efficiency will decrease

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • coil device
  • coil device
  • coil device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach 〕

[0031] The power transmission coil device according to the first embodiment and a non-contact power supply system including the power transmission coil device will be described. like figure 1 As shown, the non-contact power supply system 1 includes a power transmission coil device 2 and a power reception coil device 3 . The non-contact power supply system 1 supplies electric power from the power transmission coil device 2 to the power reception coil device 3 in a non-contact manner. The power transmitting coil device 2 and the power receiving coil device 3 are arranged so as to be separated from each other in the up-down direction (opposing direction). The power transmission coil device 2 is installed on a road surface R such as a parking lot, for example. The power receiving coil device 3 is mounted on, for example, an electric vehicle (mobile body) EV. The non-contact power supply system 1 is configured to supply electric power to an electric vehicle EV arriving at a park...

no. 2 approach 〕

[0071] Next, the power transmission coil device 2 of the second embodiment will be described.

[0072] In the description of the first embodiment, when calculating the total inductance (LD), it is assumed that the first inductance ( L1 ) of the first helical coil 11 is equal to the second inductance ( L2 ) of the second helical coil. However, even when the first helical coil 11 and the second helical coil 12 have the same physical structure and electrical structure, the first inductance ( L1 ) and the second inductance ( L2 ) may not be exactly the same. For example, it is a case where the first helical coil 11 and the second helical coil 12 are arranged on the ferrite plate 9 . The ferrite plate 9 is magnetized in the magnetic field. Therefore, the magnetic flux from the ferrite plate 9 affects the inductance of the first helical coil 11 and the second helical coil 12 . In addition, the distance from the ferrite plate 9 to the first helical coil 11 is different from the dis...

Deformed example 1

[0086] For example, as Figure 7 As shown in part (a) of , the power transmission coil device 2B of Modification 1 includes a power transmission coil unit 4B. In the power transmission coil portion 4B, the first lead wire 13B and the second lead wire 14B may be connected from the spiral portions 13a and 14a (see figure 2 ) are alternately arranged every other turn toward the outside (in the direction intersecting the axis A). That is, the first wire 13B and the second wire 14B alternate the first coil layers 18 and the second coil layers 19 at every turn. According to this configuration, the average distance difference (ΔE) between the average distance (E1) of the first helical coil 11B and the average distance (E2) of the second helical coil 12B can be further reduced.

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

No PUM Login to View More

Abstract

The power transmission coil device includes: a first helical coil having a first conductive wire formed in a helical shape around an axis; and a second helical coil having a second conductive wire formed in a helical shape around an axis. Electrically connected in parallel, the first wire and the second wire are arranged side by side along the direction of the axis.

Description

technical field [0001] The present disclosure relates to coil arrangements. Background technique [0002] As a device for transmitting electric power, a non-contact power supply system is known. The non-contact power supply system is a power supply system using electromagnetic induction or magnetic resonance generated by a coil. This system transmits electric power from a power transmitting device to a power receiving device that is not in direct contact with the power transmitting device. This system is applied to, for example, a system for charging a moving object using electricity as an energy source, such as an electric vehicle and a plug-in hybrid vehicle, or the like. In such a charging system, the power receiving device is mounted on a frame or the like of the electric vehicle, and the power transmitting device is arranged below the vehicle. [0003] The technique described in Patent Document 1 is known as a coil device used in a non-contact power supply system. T...

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
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01F38/14H01F17/04H01F27/28H02J50/10
CPCH01F38/14H02J50/10H01F5/00H01F27/2828H01F27/38H01F27/2823H01F27/36H01F27/363H01F27/24
Inventor 降矢健太郎德良晋西村贤二荒木淳奈贺野英树
Owner IHI CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com