Steam generator and heating cooker including steam generator

Patent metadata

Field	Value
Publication number	US-9615688-B2
Application number	US-201314415487-A
Country	US
Kind code	B2
Filing date	Jul 10, 2013
Priority date	Jul 20, 2012
Publication date	Apr 11, 2017
Grant date	Apr 11, 2017

Abstract

A steam generator includes a water storage chamber that stores water and at least one heating portion that heats the water in the water storage chamber to generate steam. A water supply device supplies water into the water storage chamber. A plurality of fins are provided in the water storage chamber. The water storage chamber has a steam spout port from which the steam generated by the heating portion spouts. The plurality of fins extend along a steam-generating direction under the steam spout port, and are separated from each other and cross the heating portion. The heating portion may be above and below a water surface that emerges in the water storage chamber during heating.

First claim

What is claimed is:

1. A steam generator comprising:
a water storage chamber which stores water;
at least one heating portion that heats water in the water storage chamber and is configured to generate steam;
a water supply device that supplies water into the water storage chamber; and
a plurality of fins in the water storage chamber,
wherein the water storage chamber comprises an aluminum die cast body portion that has an opening, and a water storage chamber cover opposite to the opening,
wherein the water storage chamber has a steam spout port from which the steam generated by the heating portion spouts,
wherein the plurality of fins extend from a first surface as a part of the body portion of the water storage chamber along a steam-generating direction under the steam spout port, the plurality of fins separated from each other and crossing the heating portion,
wherein distal ends of the fins are spaced from a second side surface as a part of the water storage chamber cover opposite to the first side surface of the water storage chamber, and
wherein the heating portion is cast in the body portion of the water storage chamber.

2. The steam generator according to claim 1 , wherein a cross-sectional area defined by the water storage chamber and the fins in a plane perpendicular to the steam-generating direction is equal to or larger than a cross-sectional area of the steam spout port.

3. The steam generator according to claim 1 , wherein the at least one heating portion is provided each of above and below a water surface that emerges in the water storage chamber during heating.

4. A heating cooker including the steam generator according to claim 1 .

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Shibuya Masaki
• Kawai Hiroshi
• Hayakawa Yuji
• Abe Kuniaki

Classifications

• A47J27/04 Primary

  for cooking food in steam; Devices for extracting fruit juice by means of steam {; Vacuum cooking vessels (steam-heated vessels for hotels, restaurants or canteens A47J27/16)} · CPC title

• F22B1/285

  the water being fed by a pump to the reservoirs · CPC title

• F24C15/327

  with air moisturising · CPC title

• F22B1/281

  other than by electrical resistances or electrodes · CPC title

• H05B6/804

  Water heaters, water boilers · CPC title