Title:
COIL UNIT, AND POWER TRANSMISSION DEVICE, POWER RECEPTION DEVICE, AND WIRELESS POWER TRANSMISSION SYSTEM USING COIL UNIT
Document Type and Number:
Japanese Patent JP2019030089
Kind Code:
A
Abstract:
To provide a coil unit capable of efficiently dissipating heat while suppress heat generation.SOLUTION: A coil unit 10 comprises: a coil 11 obtained by winding a lead wire in a spiral shape; a capacitor 12 electrically connected with the coil 11; a magnetic body 13 arranged at one end side in a coil axis direction of the coil 11; a first metal shield 14 arranged at an opposite side to an opposed surface to the coil 11, of the magnetic body 13; and a second metal shield 16 arranged between the magnetic body 13 and the first metal shield 14, and that forms a housing space for the capacitor 12. The second metal shield 16 is arranged so as to be thermally connected with the first metal shield 14. An external dimension of the second metal shield 16 when viewed from the coil axis direction is equal to or less than that of the magnetic body 13.SELECTED DRAWING: Figure 2
More Like This:
| JP2019057959 | UNMANNED MOVABLE BODY |
| WO/2018/169206 | WIRELESS CHARGING DEVICE |
| WO/2022/107147 | WIRELESS POWER TRANSFER SYSTEM AND METHOD |
Inventors:
SUZUKI MITSUNARI
ARASAKI KOTA
ARASAKI KOTA
Application Number:
JP2017145944A
Publication Date:
February 21, 2019
Filing Date:
July 27, 2017
Export Citation:
Assignee:
TDK CORP
International Classes:
H02J50/70; H02J50/12; H02J50/60
Domestic Patent References:
| JP2016103613A | 2016-06-02 | |||
| JPH04134815U | 1992-12-15 | |||
| JP2016103612A | 2016-06-02 |
Attorney, Agent or Firm:
Mitsuhiro Washito
Ogata Japanese
Yasuyuki Kurose
Ogata Japanese
Yasuyuki Kurose