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Title:
INDUCTOR AND VOLTAGE CONVERTER USING SAME
Document Type and Number:
WIPO Patent Application WO/2019/181473
Kind Code:
A1
Abstract:
Provided is an inductor with a sufficiently reduced resistance component and not susceptible to problems in heat generation and dissipation when used in a voltage converter. Also provided is a voltage converter using the inductor. The inductor 1A is constituted by forming a pair of external electrodes 3a, 3b on both end portions of a base body 2. Each of the pair of external electrodes 3a, 3b formed on the pair of end portions 2a, 2b of the base body 2 is connected electrically to respective end portions of conductors 5a, 5b. The conductors 5a, 5b comprise two flat wires which have rectangular cross sections and are arranged adjacently and wound between the pair of end portions 2a, 2b of the base body 2. The conductors 5a, 5b each have a cylindrically wound section 5a1, 5b1 wound less than one turn around a thickness T direction that intersects a length L direction joining the pair of end portions 2a, 2b of the base body 2, the long side b direction of the rectangular cross section of the flat wires being along the thickness T direction. A heat dissipation member 4a has a portion which separates the conductors 5a, 5b from one another and a portion exposed at the top surface of the base body 2 external surface.

Inventors:
ONOZAKI Norimichi (Ltd. 10-1 Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
Application Number:
JP2019/008524
Publication Date:
September 26, 2019
Filing Date:
March 05, 2019
Export Citation:
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Assignee:
MURATA MANUFACTURING CO., LTD. (10-1, Higashikotari 1-chome Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
International Classes:
H01F37/00; H01F27/28; H02M3/155
Domestic Patent References:
WO2016208144A12016-12-29
WO2012101858A12012-08-02
Foreign References:
JP2017195684A2017-10-26
JP2014127637A2014-07-07
JP2012065453A2012-03-29
JP2005310864A2005-11-04
JP2005064319A2005-03-10
JP2019036649A2019-03-07
Attorney, Agent or Firm:
MINEGISHI Takeshi (401 Pearlcrest Bldg, 34-10 Asakusabashi 3-chome, Taito-k, Tokyo 53, 〒1110053, JP)
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