US 10,368,403 B2
Heating cooker
Takahiro Hayashi, Shiga (JP); Yuichi Otsuki, Shiga (JP); Seiichi Yamashita, Shiga (JP); Mikio Fukui, Shiga (JP); and Toshifumi Kamiya, Shiga (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Appl. No. 15/109,818
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
PCT Filed Feb. 5, 2015, PCT No. PCT/JP2015/000509
§ 371(c)(1), (2) Date Jul. 6, 2016,
PCT Pub. No. WO2015/118867, PCT Pub. Date Aug. 13, 2015.
Claims priority of application No. 2014-020427 (JP), filed on Feb. 5, 2014.
Prior Publication US 2016/0330801 A1, Nov. 10, 2016
Int. Cl. H05B 6/64 (2006.01); F24C 15/32 (2006.01)
CPC H05B 6/6485 (2013.01) [F24C 15/325 (2013.01); H05B 6/642 (2013.01); H05B 6/6476 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A heating cooker comprising:
a heating chamber housing an object to be heated; and
a convection device that is provided behind a back wall of the heating chamber, is communicated with the heating chamber through a suction port and a discharge port provided in the back wall of the heating chamber, and generates hot air to supply the hot air to the heating chamber, the convection device having:
a circulation fan which sucks air in the heating chamber from the suction port into the convection device, and sends out the sucked air from the discharge port into the heating chamber;
a convection heater which is provided in front of the circulation fan, and heats the air sucked in the convection device;
a first air guide having a first lateral surrounding surface, which the first lateral surrounding surface is provided so as to enclose and surround the convection heater, and the first lateral surrounding surface guides, to the convection heater, the air sucked in the convection device; and
a second air guide having a second lateral surrounding surface, which the second lateral surrounding surface is provided so as to enclose and surround both the circulation fan and the first air guide, and the second lateral surrounding surface guides, to the discharge port, the air heated by the convection heater, wherein
a part of the second lateral surrounding surface of the second air guide is in contact with the first lateral surrounding surface of the first air guide, and another part of the second lateral surrounding surface of the second air guide is isolated from the first lateral surrounding surface of the first air guide.