Inductive heating device
AssigneePanasonic Corporation
InventorsEiji Matsui, Akira Kataoka, Takehiko Shigeoka
Life of this patent
Estimating the term…
Abstract
An inductive heating device is structured such that a coil base (5) and ferrites (6) placed under a heating coil (4) in the vertical direction are flushed with each other at their lower surfaces and are directly placed on a heat dissipation plate (12A). A heat conductive member (8) is charged between the ferrites (6) and an electrical insulating member (9) sandwiched between the heating coil (4) and the ferrites (6), at least at a portion thereof, so that thickness variations in the ferrites (6) are absorbed thereby, which realizes a state where they are thermally coupled to each other from the heating coil (4) to the heat dissipation plate (12A).
Claims20
An inductive heating device comprising:
- a coil unit including a heating coil for heating a to-be-heated object, a plurality of ferrites placed under the heating coil in a vertical direction, and a coil base having plural housing holes which house the plural ferrites respectively;
- and
- a heat dissipation plate for directly placing the coil unit thereon, wherein
- the coil unit has a placement surface formed from a lower surface of the coil base in the vertical direction and lower surfaces of the plural ferrites housed in the housing holes in the coil base in the vertical direction which are flushed with each other, and the coil unit is placed on a flat surface of the heat dissipation plate such that the placement surface and the flat surface are in a surface contact with each other,
- there is placed a member having an electrical insulation function and a heat conduction function, between the heating coil and the ferrites
- there is provided a heat conductive member having a heat conduction function between the heating coil and the ferrites, with an electrical insulating member having an electrical insulating function interposed therebetween, and
- a heat conductive member is embedded in areas opposing to each other, out of an area between the heating coil and the electrical insulating member and an area between the electrical insulating member and the ferrites.
(canceled)
Dependencies are inferred from the claim text.