Metal flexible heating film and preparation method thereof

A heating film and metal technology, applied in electric heating devices, ohmic resistance heating, electrical components, etc., can solve the problems of large local expansion coefficient, high power density, poor thermal conductivity of insulating layer, etc., to achieve high surface power density and shape. and flexible in size, preventing heat loss

Active Publication Date: 2016-05-11
BIHE ELECTRIC TAICANG CO LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this electrothermal film heater cannot solve the problem of poor thermal conductivity of the insulating layer. It has the problems of high power density per unit cross-sectional area, high surface temperature, large local expansion coefficient, easy deformation, and noise during operation. The high local expansion coefficient causes problems such as short circuit of the heating wire, sparking, and rapid oxidation.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Metal flexible heating film and preparation method thereof
  • Metal flexible heating film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.

[0027] refer to Figure 1~Figure 2 , a metal flexible heating film provided by the present invention is characterized in that it includes: a metal electrode and a first insulating film layer 2, a metal heating layer 3, a second insulating film layer 4, a thermal insulation and heat conduction layer stacked sequentially from bottom to top Layer 5; the metal heating layer 3 is evenly distributed with a number of conductive alloy strips 31; the metal electrodes are electrically connected to the metal heating layer 3; the first insulating film layer 2 is evenly coated on the lower surface of the metal heating layer 3 ; The second insulating film layer 4 is evenly coated on the upper surface of the metal heating layer 3; the heat-preserving and heat-conducting layer 5 is a graphite layer, laid on the upper surface of the second insulating...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to view more

Abstract

The invention provides a metal flexible heating film and a preparation method thereof. The metal flexible heating film comprises a metal electrode, and a first insulated thin film layer, a metal heating layer, a second insulated thin film layer and a heat insulation and heat conduction layer overlapped sequentially from bottom to top, wherein a plurality of conductive alloy strips are uniformly distributed on the metal heating layer; the metal electrode is electrically connected with the metal heating layer; the first insulated thin film layer is uniformly applied to the lower surface of the metal heating layer; the second insulated thin film layer is uniformly applied to the upper surface of the metal heating layer; and the heat insulation and heat conduction layer is a graphite layer and is laid on the upper surface of the second insulated thin film layer, and the graphite content is no less than 99%. The heating film can effectively solve the problems of use safety and service life caused by local overheat of the heating film.

Description

technical field [0001] The invention belongs to the field of metal processing, and in particular relates to a metal flexible heating film and a preparation method thereof. Background technique [0002] Metal flexible electric heating film is a semi-transparent or fully transparent film heater with a sandwich structure. The upper and lower surfaces are insulating films with excellent temperature resistance and insulation performance, and the middle is a resistive circuit made of special alloy foil. [0003] There are generally two types of metal flexible electric heating films: high-temperature polyimide metal electric heating films and low-temperature PET metal electric heating films. It has excellent dielectric strength; excellent dielectric strength; excellent heat conduction efficiency; the heating element is made of special alloy foil, which has excellent resistance stability. This makes it widely applicable to the heating field and can obtain quite high temperature con...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H05B3/36
CPCH05B3/36H05B2203/01
Inventor 李睿曹祥记印晶晶
Owner BIHE ELECTRIC TAICANG CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap