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Patent Searching and Data


Title:
MICROWAVE HEATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/081852
Kind Code:
A1
Abstract:
A microwave heating device having: a heating chamber (1) housing an object (4) to be heated; a microwave generation unit (2) that generates microwaves; electricity supply units (3, 8) that supply microwaves to the heating chamber (1); and an electromagnetic field distribution adjustment device (5) provided in at least part of a two-dimensional area in a wall surface of the heating chamber (1). The electromagnetic field distribution adjustment device (5) has: a ground conductor provided in the two-dimensional area; a plurality of metal pieces arranged two-dimensionally and periodically, parallel to the ground conductor; and a plurality of switches each provided between two adjacent metal pieces among the plurality of metal pieces. In addition, the electromagnetic field distribution adjustment device (5) is configured such that the direction from one to another of two adjacent metal pieces is different from the excitation direction (6) for the microwaves supplied to the heating chamber (1). As a result of this configuration, uneven heating can be reduced using a less costly configuration.

Inventors:
OOMORI, Yoshiharu
YOSHINO, Koji
HASHIMOTO, Osamu
SUGA, Ryosuke
Application Number:
JP2016/004764
Publication Date:
May 18, 2017
Filing Date:
October 31, 2016
Export Citation:
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Assignee:
PANASONIC CORPORATION (1006, Oaza Kadoma Kadoma-sh, Osaka 01, 〒5718501, JP)
International Classes:
H05B6/74; F24C7/02; F27B17/00; F27D11/12; H05B6/64
Domestic Patent References:
WO2015133081A12015-09-11
WO2011021368A12011-02-24
Foreign References:
JP2003529261A2003-09-30
CN103032906A2013-04-10
US20060102621A12006-05-18
EP1863114A12007-12-05
Attorney, Agent or Firm:
TOKUDA, Yoshiaki et al. (1006 Oaza Kadoma, Kadoma-sh, Osaka 01, 〒5718501, JP)
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