HEATING ELEMENT AND A MANUFACTURING METHOD THEREOF

• US 20130175255A1
• Filed: 09/14/2011
• Published: 07/11/2013
• Est. Priority Date: 09/14/2010
• Status: Active Grant

• Current Assignee: LG Chem Limited (LG Corporation)
• Original Assignee: LG Chem Limited (LG Corporation)
• Inventors: Kim, Ki-Hwan, Hong, Young-Jun, Choi, Hyeon, Kim, Su-jin
• Granted Patent: US 9,247,587 B2
• Time in Patent Office: Days
• US Class Current: 219/522
• CPC Class Codes: H01C 17/00 Apparatus or processes specially adapted for manufacturing resistors providing fillings for housings or enclosures H01C1/02; reducing insulation surrounding a resistor to powder H01C1/03; manufacture of thermally variable resistors H01C7/02, H01C7/04
• CPC Class Codes: H05B 2203/005 using multiple resistive elements or resistive zones isolated from each other
• CPC Class Codes: H05B 2203/011 Heaters using laterally extending conductive material as connecting means
• CPC Class Codes: H05B 3/84 Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields
• CPC Class Codes: Y10T 29/49083 Heater type

Abstract

The present invention relates to a heating element including a transparent substrate, a bus bar, a power supply connected to the bus bar, a heat emitting pattern line provided on the transparent substrate and electrically connected to the bus bar, and a non-heat emitting pattern line provided on the transparent substrate and not electrically connected to the bus bar, and a method for manufacturing the same.

Claims

1. A heating element, comprising:

a transparent substrate;

a bus bar;

a power supply connected to the bus bar;

a heat emitting pattern line provided on the transparent substrate and electrically connected to the bus bar; and

a non-heat emitting pattern line provided on the transparent substrate and not electrically connected to the bus bar.

2. The heating element according to claim 1, wherein the transparent substrate is a plastic film, a plastic substrate or a glass substrate.

3. The heating element according to claim 1, wherein the heat emitting pattern line is disposed so that heat is uniformly emitted.

4. The heating element according to claim 3, wherein the heat emitting pattern line is disposed so that a standard deviation of a surface temperature in an entire area in which the heat emitting pattern line is provided is 20% or less.

5. The heating element according to claim 1, wherein the non-heat emitting pattern line is disposed so that a distribution of an entire pattern including the heat emitting pattern line and the non-heat emitting pattern line is uniform.

6. The heating element according to claim 1, wherein the non-heat emitting pattern line is disposed so that an opening ratio deviation with respect to a circle having a diameter of 20 cm of the entire pattern including the heat emitting pattern line and the non-heat emitting pattern line is 5% or less.

7. The heating element according to claim 1, wherein when the area in which the heat emitting pattern line is provided is divided into two or more partitions, lengths of the heat emitting pattern lines connected to the bus bars in the partitions are the same as each other.

8. The heating element according to claim 7, wherein the non-heat emitting pattern line is disposed so that an opening ratio deviation with respect to a circle having a diameter of 20 cm of an entire pattern including the heat emitting pattern line and the non-heat emitting pattern line is 5% or less.

9. The heating element according to claim 1, wherein a form of the entire pattern including the heat emitting pattern line and the non-heat emitting pattern line is a Voronoi pattern or a Delaunay pattern.

11. A method for manufacturing the heating element according to claim 1, comprising:

simultaneously or separately forming a bus bar, a heat emitting pattern line electrically connected to the bus bar, and a non-heat emitting pattern line not electrically connected to the bus bar on a transparent substrate.

10. A heating element, comprising:

a transparent substrate;

a bus bar;

a power supply connected to the bus bar; and

a heat emitting pattern line provided on the transparent substrate and electrically connected to the bus bar, wherein when an area in which the heat emitting pattern line is provided is divided into two or more partitions, lengths of the heat emitting pattern lines connected to the bus bars in the partitions are the same as each other.