Cooker

Patent metadata

Field	Value
Publication number	US-11924950-B2
Application number	US-201917261412-A
Country	US
Kind code	B2
Filing date	Jan 4, 2019
Priority date	Oct 19, 2018
Publication date	Mar 5, 2024
Grant date	Mar 5, 2024

Abstract

The present specification relates to a cooker, wherein a separate-type cooking module is arranged above a fixed-type cooking module to be charged with power or operated, and when used separately, the separate-type cooking module and the fixed-type cooking module are respectively operated.

First claim

The invention claimed is:

1. A cooking apparatus comprising:
a first cooking appliance including:
a first heating unit configured to generate and emit magnetic lines of force;
a first power unit configured to convert power supplied from a power supply source into driving power of the first heating unit and supply the driving power to the first heating unit; and
a first control unit configured to control heating operation of the first cooking appliance by controlling operation of the first heating unit and power supply of the first power unit when a heating object is disposed on the first heating unit and, a second cooking appliance including:
a second heating unit configured to generate and emit magnetic lines of force;
a second power unit provided with a battery so as to convert power charged in the battery into driving power of the second heating unit and supply the driving power to the second heating unit and
a second control unit configured to control heating operation of the second cooking appliance by controlling operation of the second heating unit and power supply of the second power unit,

wherein the first control unit controls the first heating unit and the first power unit such that power flows in the second cooking appliance operated by power charged in the battery of the second cooking appliance when the second cooking appliance is disposed on the first heating unit in a stacked manner, and
wherein the second cooking appliance heats the heating object when the heating object is disposed on the second cooking appliance by an induction heating method.

2. The cooking apparatus of claim 1 , wherein an upper surface of the first cooking appliance on which the first heating unit is provided is in contact with a lower surface of the second cooking appliance when the second cooking appliance is disposed on the first heating unit.

3. The cooking apparatus of claim 2 , further comprising a contact portion provided at one side of the upper surface of the first cooking appliance to be in contact with the second cooking appliance.

4. The cooking apparatus of claim 2 , further comprising a contact that is in contact with one point of the second cooking appliance, so as to be electrically connected to the second cooking appliance.

5. The cooking apparatus of claim 4 , wherein the contact is connected to at least one of the power supply source and the first power unit, so as to provide electrical connection between the second cooking appliance and the at least one of the power supply source and the first power unit, and
wherein the first control unit controls such that power is supplied to the second cooking appliance from the power supply source or the first power unit through the contact.

6. The cooking apparatus of claim 1 , wherein the first control unit detects a change in state of the first heating unit according to an object placed on the first heating unit to determine whether the second cooking appliance is disposed on the first heating unit based on a result of the detection.

7. The cooking apparatus of claim 1 , wherein the first control unit, when controlling heating operation of the first cooking appliance as an object to be heated is placed on the first heating unit, controls such that the first power unit supplies the driving power to the first heating unit, and the first heating unit generates the magnetic lines of force based on the driving power to emit the magnetic lines of force to the object to be heated.

8. The cooking apparatus of claim 1 , wherein the first control unit, when the second cooking appliance is disposed on the first heating unit, determines a charging level of the battery to control the first heating unit and the first power unit so that power flows in the second cooking appliance according to a result of the determination.

9. The cooking apparatus of claim 1 , wherein the first control unit, when the second cooking appliance heats an object to be heated while being disposed on the first heating unit, controls such that the first power unit supplies the driving power to the first heating unit, and the first heating unit generates first magnetic lines of force based on the driving power so as to be emitted to the second cooking appliance.

10. The cooking apparatus of claim 9 , wherein the first heating unit emits the first magnetic lines of force to an upper part of the second cooking appliance, and
wherein the second cooking appliance heats the object to be heated by amplifying the first magnetic lines of force to be converted into second magnetic lines of force and emitting the second magnetic lines of force.

11. The cooking apparatus of claim 9 , wherein the first heating unit emits the first magnetic lines of force so that power is induced in the second cooking appliance by the first magnetic lines of force, and wherein the second cooking appliance heats the object to be heated by generating third magnetic lines of force based on the power induced by the first magnetic lines of force and emitting the third magnetic lines of force to the object to be heated.

12. The cooking apparatus of claim 9 , wherein the second cooking appliance converts power induced by the first magnetic lines of force into charging power for charging the battery and stores the charging power in the battery.

Assignees

• Lg Electronics Inc

Inventors

• Lee Seonghun
• Kwak Bongsik

Classifications

• H02J7/96

  in response to battery voltage · CPC title

• H02J7/82

  Control of state of charge [SOC] · CPC title

• H05B6/062 Primary

  for cooking plates or the like · CPC title

• H05B6/04

  Sources of current · CPC title

• H05B6/1236

  adapted to induce current in a coil to supply power to a device and electrical heating devices powered in this way · CPC title