Cooking tool

• US 7,473,872 B2
• Filed: 08/30/2004
• Issued: 01/06/2009
• Est. Priority Date: 11/25/2003
• Status: Expired due to Fees

• Current Assignee: Irisohyama, Inc.
• Original Assignee: Toshiba Consumer Marketing Corporation (Midea Group Co., Ltd), Kabushiki Kaisha Toshiba (Toshiba Corporation), Toshiba Ha Products Co., Ltd. (Toshiba Corporation)
• Inventors: Takimoto, Hitoshi
• Primary Examiner(s): ROBINSON, DANIEL LEON
• Application Number:
  US10/580,216
• Publication Number:
  US 20070080158A1
• Time in Patent Office: 1,590 Days
• Field of Search: 219/620, 219/621, 219/622, 219/623, 219/624, 219/625, 219/626, 219/627
• US Class Current: 219/627
• CPC Class Codes: A47J 36/321 the electronic control being performed over a network, e.g. by means of a handheld device
• CPC Class Codes: H05B 2213/06 Cook-top or cookware capable of communicating with each other
• CPC Class Codes: H05B 2213/07 Heating plates with temperature control means
• CPC Class Codes: H05B 6/062 for cooking plates or the like

Abstract

A heat cooking apparatus includes a supporting unit for supporting a cooking tool, a heating unit for heating the cooking tool, a receiving unit capable of receiving temperature data of the cooking tool transmitted in the form of infrared rays from the exterior, and a controlling unit for controlling the heating unit on the basis of temperature data received by the receiving unit.

Claims

1. A cooking tool used with a heat cooking apparatus having a receiving unit capable of receiving data externally transmitted in the form of infrared rays, the cooking tool being heated by a heating unit of the heat cooking apparatus while being supported by a supporting unit of the heat cooking apparatus, the cooking tool comprising:

a temperature detecting unit that generates a signal according to a temperature of an object to be cooked;

a transmitting unit that transmits temperature data corresponding to the output signal from the temperature detecting unit in the form of infrared rays to the heat cooking apparatus; and

a primary coil and a secondary coil, the secondary coil magnetically connected to the primary coil while the heating unit is being driven to produce electric power for operating the transmitting unit,

wherein for the case where a high frequency current is caused to flow through the primary coil so that the heating unit of the heat cooking apparatus performs induction heating, the secondary coil is magnetically coupled to the primary coil by passing a high frequency current through the primary coil, and

wherein the transmitting unit is provided with a rectifying portion to rectify the output voltage from the secondary coil and a stabilizing electric supply portion to stabilize the rectified output voltage from the rectifying portion.

2. The cooking tool according to claim 1, wherein the transmitting unit is provided with a battery that supplies electric power through wire.

3. The cooking tool according to claim 2, further comprising a switching unit of opening/closing the electric power supply circuit between the battery and the transmitting unit according to the temperature of the object to be cooked.

4. The cooking tool according to claim 2, wherein the transmitting unit is provided with an output detector that detects output voltage of the battery output voltage of the battery.

5. The cooking tool according to claim 3, wherein the transmitting unit is provided with an output detector that detects output voltage of the battery.

6. The cooking tool according to claim 1, wherein the secondary coil is provided at the bottom of the vessel portion in which the object to be cooked is charged.

7. The cooking tool according to claim 1, wherein the transmitting unit is provided with a load connected to the output terminal of the rectifying portion, a rectified output detecting portion that detects the magnitude of the rectified output voltage given to the stabilizing electric supply by the rectifying portion, and a rectified output controlling portion that controls the magnitude of the rectified output voltage given to the stabilizing electric supply by the rectifying portion by adjusting the magnitude of the load based on the detection results of the rectified output detecting portion.

8. The cooking tool according to claim 1, wherein the transmitting unit is composed of an infrared ray transmitting module.