Induction heating device

Patent metadata

Field	Value
Publication number	US-10588179-B2
Application number	US-201715470170-A
Country	US
Kind code	B2
Filing date	Mar 27, 2017
Priority date	Mar 28, 2016
Publication date	Mar 10, 2020
Grant date	Mar 10, 2020

Abstract

An induction heating device is disclosed. The induction heating device includes a working coil for creating a magnetic field for induction of eddy currents in cooking equipment so as to heat the cooking equipment, a power supply unit for providing induction voltage to operate the working coil, and a case for accommodating the power supply unit and the working coil. The case includes a first case and a second case, and the first case and the second case define therebetween an insertion space into which a plate is fitted.

First claim

What is claimed is:

1. An induction heating device comprising:
a working coil for creating a magnetic field for induction of eddy currents in cooking equipment so as to heat the cooking equipment;
a power supply unit for providing induction voltage to operate the working coil; and
a case for accommodating the power supply unit and the working coil, the case including a first case, a second case, and a connection case that connects the first case to the second case,
wherein the first case, the second case, and the connection case define an insertion space within the case that is configured to accommodate a plate.

2. The induction heating device according to claim 1 , wherein the power supply unit is disposed in the first case and the working coil is disposed in the second case.

3. The induction heating device according to claim 1 , wherein the first case and the second case are disposed parallel to each other.

4. The induction heating device according to claim 1 , further comprising:
a height adjustment unit coupled to one selected from between the first case and the second case so as to adjust a height of the insertion space.

5. The induction heating device according to claim 4 , wherein the height adjustment unit includes an adjustment screw threaded into a coupling hole formed in one selected from between the first case and the second case and configured to be vertically moved by rotation thereof so as to adjust the height of the insertion space.

6. The induction heating device according to claim 5 , wherein the coupling hole is formed in a surface of the first case that faces the second case.

7. The induction heating device according to claim 4 , wherein the height adjustment unit includes:
an elastic member secured to the first case; and
a support member supported by the elastic member,
wherein the insertion space is defined between the support member and the second case, and a distance between the support member and the second case is adjusted by elastic force of the elastic member.

8. The induction heating device according to claim 7 , wherein the support member is hingedly coupled at one end thereof to the first case.

9. The induction heating device according to claim 7 , further comprising:
a cover made of a flexible material, the cover connecting an edge portion of the support member and the first case.

10. The induction heating device according to claim 1 , further comprising:
a cable disposed in the connection case so as to electrically connect the working coil and the power supply unit.

11. The induction heating device according to claim 1 , further comprising:
a distance adjustment unit for adjusting a distance between the first case and the second case.

12. The induction heating device according to claim 11 , wherein the distance adjustment unit adjusts a length of the connection case.

13. The induction heating device according to claim 11 , wherein the connection case includes a first connection case connected at one end thereof to the first case and a second connection case connected at one end thereof to the second case, and
wherein the distance adjustment unit includes a rotating screw threaded into a screw hole formed in the first connection case and extending through the second connection case so as to vertically move the first connection case due to rotation thereof.

14. The induction heating device according to claim 13 , wherein the rotating screw is coupled to the second connection case such that vertical movement thereof is inhibited and rotation thereof is permitted.

15. The induction heating device according to claim 13 , wherein the connection case further includes a shielding film for shielding a separation space between the first connection case and the second connection case.

16. The induction heating device according to claim 1 , wherein the connection case defines a connection space that connects an inner space of the first case to an inner space of the second case.

17. An induction heating device comprising:
a working coil for creating a magnetic field for induction of eddy currents in cooking equipment so as to heat the cooking equipment;
a power supply unit for providing induction voltage to operate the working coil;
a case for accommodating the power supply unit and the working coil, the case including a first case, a second case, and a connection case that connects the first case to the second case, wherein the first case, and the second case, and the connection case define an insertion space within the case that is configured to accommodate a plate; and
a height adjustment unit coupled to one selected from between the first case and the second case and configured to adjust a height of the insertion space.

18. The induction heating device according to claim 17 , wherein the height adjustment unit includes an adjustment screw threaded into a coupling hole formed in one selected from between the first case and the second case and configured to be vertically moved by rotation thereof so as to adjust the height of the insertion space.

19. The induction heating device according to claim 17 , wherein the height adjustment unit includes:
an elastic member secured to the first case; and
a support member supported by the elastic member,
wherein the insertion space is defined between the support member and the second case, and a distance between the support member and the second case is adjusted by elastic force of the elastic member.

20. The induction heating device according to claim 19 , further comprising:
a cover made of a flexible material, the cover connecting an edge portion of the support member and the first case.

Assignees

• Lg Electronics Inc

Inventors

• Kim Wansoo
• Kim Seongjun
• Park Byungkyu
• Kim Yangkyeong

Classifications

• H05B6/1245

  with special coil arrangements · CPC title

• H05B6/02

  Induction heating · 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

• H05B6/062

  for cooking plates or the like · CPC title

• H05B6/1209 Primary

  induction cooking plates or the like and devices to be used in combination with them · CPC title