Heating cooker

Patent metadata

Field	Value
Publication number	US-2016000250-A1
Application number	US-201414764028-A
Country	US
Kind code	A1
Filing date	Mar 4, 2014
Priority date	Mar 8, 2013
Publication date	Jan 7, 2016
Grant date	—

Abstract

A steam generator according to the present invention includes a boiler, a water supply pipe, a drainage pipe, and a steam supply pipe. The boiler has a first side wall, a second side wall, a bottom wall, a water inlet, a drain outlet, and a steam discharge port. The water supply pipe is connected to the water inlet, and supplies water to the boiler. The drainage pipe is connected to the drain outlet, and extends to a drainage pipe outlet positioned below the drain outlet by way of a curved portion thereof having a shape projecting upward from the drain outlet. The steam supply pipe is connected to the steam discharge port, and supplies steam generated by the boiler to a cavity. The bottom wall has an inner bottom surface downwardly inclined from the first side wall toward the second side wall which faces the first side wall. The water inlet is formed in the first side wall in a vicinity of the inner bottom surface, and the drain outlet is formed in the second side wall at a position in the vicinity of the inner bottom surface and lower than the water inlet.

First claim

What is claimed is:

1 . A heating cooker comprising:
a cavity which for accommodating an object to be heated therein; and a steam generator disposed outside the cavity for supplying steam to the cavity, the steam generator including:
a boiler which has a first side wall, a second side wall, a bottom wall, a water inlet, a drain outlet, and a steam discharge port, and generates steam by heating water;
a water supply pipe connected to the water inlet for supplying water to the boiler;
a drainage pipe which is connected to the drain outlet, extends to a drainage pipe outlet positioned below the drain outlet by way of a curved portion thereof having a shape projecting upward from the drain outlet, and drains water from an inside of the boiler; and
a steam supply pipe connected to the steam discharge port for supplying the steam generated by the boiler to the cavity, wherein the bottom wall of the boiler has an inner bottom surface downwardly inclined from the first side wall toward the second side wall which faces the first side wall, the water inlet is formed in the first side wall in a vicinity of the inner bottom surface, and the drain outlet is formed in the second side wall at a position in the vicinity of the inner bottom surface and lower than the water inlet.

2 . The heating cooker according to claim 1 , wherein
the water supply pipe includes a straight pipe portion which extends laterally from the water inlet, and the drainage pipe includes a straight pipe portion which extends laterally from the drain outlet.

3 . The heating cooker according to claim 1 , wherein
the drainage pipe includes a first straight pipe portion which extends laterally from the drain outlet, and a second straight pipe portion which is connected to the first straight pipe portion and extends upward.

4 . The heating cooker according to claim 1 , wherein
the steam generator further includes two heater units both of which are disposed at positions higher than the water inlet and the drain outlet.

5 . The heating cooker according to claim 1 , wherein
a height of the drainage pipe outlet is substantially equal to a height of a drainage pipe inlet.

6 . The heating cooker according to claim 1 , further comprising a drainage tank which receives water drained from the drainage pipe,
wherein the drainage pipe outlet is disposed directly above the drainage tank.

7 . The heating cooker according to claim 1 , wherein
the steam generator further includes an extension pipe connected to the drainage pipe outlet for guiding water from the drainage pipe to the drainage tank, and an inner diameter of the extension pipe is set larger than an inner diameter of the drainage pipe.

8 . The heating cooker according to claim 7 , further comprising a drainage tank which receives water drained from the drainage pipe,
wherein an end of the extension pipe on a downstream side is disposed directly above the drainage tank.

9 . The heating cooker according to claim 1 , wherein
the drainage pipe is made of a flexible resin, and the heating cooker further comprises a holder which holds the drainage pipe for maintaining a shape of the drainage pipe.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Abe Kuniaki
• Shibuya Masaki
• Hayakawa Yuji

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

• A47J2027/043

  for cooking food in steam · CPC title

• H05B6/6479

  using steam · CPC title

• A47J37/0664

  Accessories · CPC title

• F24C15/327 Primary

  with air moisturising · CPC title