Electric heater and cooking appliance having same
US-2020063977-A1 · Feb 27, 2020 · US
Surface heater, the electric range comprising the same, and the manufacturing method of the same
US2018242402A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018242402-A1 |
| Application number | US-201815900474-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 20, 2018 |
| Priority date | Feb 21, 2017 |
| Publication date | Aug 23, 2018 |
| Grant date | — |
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- Title
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Abstract
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A surface heater including a substrate, an insulating layer positioned on the substrate, and a heater layer positioned on the insulating layer, wherein the insulating layer and the heating layer are co-fired.
First claim
Opening claim text (preview).
What is claimed is: 1 . A surface heater, comprising: a substrate; an insulating layer disposed on the substrate; a heater layer disposed on the insulating layer. 2 . The surface heater of claim 1 , wherein the substrate comprises one of a glass material, a glass-ceramic material, or a ceramic material. 3 . The surface heater of claim 1 , wherein the insulating layer comprises at least one of Boron nitride, Aluminum nitride, and Silicon nitride. 4 . The surface heater of claim 1 , wherein the insulating layer comprises glass frit as a binder. 5 . The surface heater of claim 4 , wherein the binder comprises a Borosilicate component and/or a Bentonite component. 6 . The surface heater of claim 1 , wherein the heater layer comprises at least one lanthanide oxide from a group consisting of LSM (Lanthanum Strontium Manganite), LSCF (Lanthanum Strontium Cobalt Ferrite), LNF (Lanthanum Nickel Ferrite), and LC (Lanthanum Cobalt oxide). 7 . The surface heater of claim 1 , wherein the heater layer comprises a metal powder. 8 . The surface heater of claim 7 , wherein the metal powder comprises at least one selected from a group consisting of silver (Ag), silver-palladium (Ag—Pd), and copper (Cu). 9 . The surface heater of claim 4 , wherein the heater layer comprises glass frit having the same composition as the binder of the insulating layer. 10 . An electric range, comprising: a surface heater, comprising: a substrate, a co-fired insulating layer disposed on the substrate, and a co-fired heater layer disposed on the insulating layer. 11 . A method of manufacturing a surface heater, comprising: preparing a substrate; providing an insulating layer on the substrate; providing a heater layer on the insulating layer; and co-firing the insulating layer and the heater layer. 12 . The method of claim 11 , further comprising: drying the heater layer prior to the co-firing the insulating layer and the heater layer step of the method. 13 . The method of claim 11 , wherein the substrate comprises one of a glass material, a glass-ceramic material, or a ceramic material. 14 . The method of claim 11 , wherein the insulating layer comprises at least one of Boron nitride, Aluminum nitride, and Silicon nitride. 15 . The method of claim 11 , wherein the insulating layer comprises glass frit as a binder. 16 . The method of claim 15 , wherein the binder comprises a Borosilicate component and/or Bentonite component. 17 . The method of claim 11 , wherein the heater layer comprises at least one lanthanide oxide from a group consisting of LSM (Lanthanum Strontium Manganite), LSCF (Lanthanum Strontium Cobalt Ferrite), LNF (Lanthanum Nickel Ferrite), and LC (Lanthanum Cobalt oxide). 18 . The method of claim 11 , wherein the heater layer comprises a metal powder. 19 . The method of claim 18 , wherein the metal powder comprises at least one selected from a group consisting of silver (Ag), silver-palladium (Ag—Pd), and copper (Cu). 20 . The method of claim 15 , wherein the heater layer comprises glass frit having the same component as the binder of the insulating layer.
Assignees
Inventors
Classifications
- H05B3/746Primary
Protection, e.g. overheat cutoff, hot plate indicator · CPC title
heating conductor embedded in insulating material · CPC title
Heaters comprising a particular structure with multiple layers · CPC title
Heaters using resistive films or coatings · CPC title
- H05B3/141Primary
Conductive ceramics, e.g. metal oxides, metal carbides, barium titanate, ferrites, zirconia, vitrous compounds · CPC title
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Frequently asked questions
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- What does patent US2018242402A1 cover?
- A surface heater including a substrate, an insulating layer positioned on the substrate, and a heater layer positioned on the insulating layer, wherein the insulating layer and the heating layer are co-fired.
- Who is the assignee on this patent?
- Lg Electronics Inc
- What technology area does this patent fall under?
- Primary CPC classification H05B3/746. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Aug 23 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).