CN210518878U - Single-side heating self-temperature-limiting far infrared electrothermal film - Google Patents
Single-side heating self-temperature-limiting far infrared electrothermal film Download PDFInfo
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- CN210518878U CN210518878U CN201920476390.8U CN201920476390U CN210518878U CN 210518878 U CN210518878 U CN 210518878U CN 201920476390 U CN201920476390 U CN 201920476390U CN 210518878 U CN210518878 U CN 210518878U
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Abstract
The utility model provides a single-side heating self-temperature-limiting far infrared electrothermal film, which is characterized in that a lower insulating film, an infrared reflection film, a transparent expansion glue layer, an infrared emission PTC conductive film with a finger electrode and an upper insulating film are sequentially laminated from bottom to top; the infrared emission PTC conductive film is a graphene filled polymer, the graphene filling amount reaches a seepage threshold, and the self-power-off temperature is 45-55 ℃; the infrared reflection film is a polymer film filled with nano Antimony Tin Oxide (ATO), Indium Tin Oxide (ITO) or zinc aluminum oxide (AZO), and the infrared reflectivity is more than 60%. The utility model discloses an insert the finger electrode, the operating voltage is low, and the USB connecting wire uses 5V voltage, and the USB of ordinary treasured, ordinary computer and mobile phone charger that charges all can use, utilizes the mode of infrared reflection membrane and graphite alkene infrared emission membrane laminating mutually to realize the single face heat supply, can effectively reduce energy loss, practices thrift battery power supply volume.
Description
Technical Field
The utility model belongs to the technical field of electric heat membrane and infrared, a self-limiting temperature far infrared electric heat membrane that single face was heated is related to.
Background
The electrothermal film is a film material that generates heat through the electric current, and traditional low temperature radiation electrothermal film adopts the mode of external temperature controller, has temperature test difficulty and local heating and arouses shortcomings such as danger. The working principle of the self-temperature-limiting electrothermal film is that when a heating body prepared by blending polymers and conductive fillers reaches a phase transition temperature, the electronic nonlinearity is increased sharply, the current carrying and the heat productivity are reduced, and the over-temperature is prevented, so that the temperature is controlled in a reasonable range. The far infrared heating film using the graphene filler has the advantages of low voltage, high heat, thinness, convenience and the like, and has wide application prospects in the fields of intelligent wearing, home life and the like. In addition, in most heating applications, the infrared emission electrothermal film only needs single-side heating, such as a heating pad, a wearable heating physiotherapy product and the like.
Disclosure of Invention
The utility model aims at providing a single-side heating self-temperature-limiting far infrared electrothermal film, which is characterized in that a lower insulating film, an infrared reflection film, a transparent expansion glue layer, an infrared emission PTC conductive film with a finger electrode and an upper insulating film are sequentially laminated from bottom to top; the self-power-off temperature of the infrared emission PTC conductive film is 45-55 ℃; the infrared reflection film has an infrared reflectivity of greater than 60%.
The transparent expansion glue layer is used for attaching the infrared reflection film and the infrared emission PTC conductive film with the finger insertion electrode.
The finger inserting electrode is a silver electrode or a copper electrode, is printed on the infrared emission PTC conductive film in a screen printing mode or is pressed on the infrared emission PTC conductive film, and is led out outwards through a lead to be electrified.
The lower insulating film is made of a heat-insulating waterproof wear-resistant material, and the upper insulating film is made of a waterproof wear-resistant material with good heat conduction.
The infrared emission PTC conductive film can be graphene filled polymer, and the filling amount of the graphene reaches a percolation threshold.
The infrared reflective film may be a nano tin antimony oxide (ATO), Indium Tin Oxide (ITO), or zinc aluminum oxide (AZO) filled polymer film.
The utility model discloses an insert the finger electrode, the operating voltage is low, and the USB connecting wire uses 5V voltage, and the USB of ordinary treasured, ordinary computer and mobile phone charger that charges all can use, utilizes the mode of infrared reflection membrane and graphite alkene infrared emission membrane laminating mutually to realize the single face heat supply, can effectively reduce energy loss, practices thrift battery power supply volume.
Drawings
Fig. 1 is a schematic structural view of a self-temperature-limiting far infrared electrothermal film adopting the single-side heating of the present invention ( embodiments 1, 2, 3).
1-upper insulating film
2-infrared emission PTC conductive film
3-finger electrode
4-transparent expansion glue layer
5-infrared reflective film
6-lower insulating film
Detailed Description
Example 1:
a single-side heating self-temperature-limiting far infrared electrothermal film structure is shown in figure 1, and a lower layer heat insulation insulating film, a nano tin antimony oxide (ATO) filled PET infrared reflection film, a transparent expansion glue layer, an infrared emission PTC conductive film with a finger electrode and a PET transparent heat conduction insulating film are sequentially attached from bottom to top; the infrared emission PTC conductive film is formed by filling graphene reaching a percolation threshold with polypropylene, screen printing is carried out on the graphene, silver finger electrodes are inserted, and the self-power-off temperature is 45 ℃.
Example 2:
the single-side heating self-temperature-limiting far infrared electrothermal film structure is as shown in figure 1, and is sequentially attached with a lower layer of heat insulation insulating film, an Indium Tin Oxide (ITO) filled PET infrared reflection film, a transparent expansion glue layer, an infrared emission PTC conductive film with a finger electrode, and a polyimide transparent heat conduction insulating film from bottom to top; the infrared emission PTC conductive film is made of graphene filled with gutta-percha rubber reaching the percolation threshold, copper finger-inserted electrodes are printed on a silk screen, and the self-power-off temperature is 55 ℃.
Example 3:
the single-side heating self-temperature-limiting far infrared electrothermal film structure is as shown in figure 1, and is sequentially laminated with a lower layer of heat insulation insulating film, a nano zinc aluminum oxide (AZO) filled polyimide infrared reflection film, a transparent expansion glue layer, an infrared emission PTC conductive film with a finger insertion electrode and a PET transparent heat conduction insulating film from bottom to top; the infrared emission PTC conductive film is prepared by filling polyethylene oxide in graphene reaching a percolation threshold, pressing a copper finger electrode, and performing self-power-off at 52 ℃.
The present invention is not limited to the above embodiments, and any person can obtain other products in various forms no matter what the shape or structure of the product is changed, and the product has the same or similar technical solution as the present application, and all fall within the protection scope of the present invention.
Claims (4)
1. A single-side heating self-temperature-limiting far infrared electrothermal film is characterized in that a lower insulating film, an infrared reflection film, a transparent expansion glue layer, an infrared emission PTC conductive film with an insertion finger electrode and an upper insulating film are sequentially laminated from bottom to top; the self-power-off temperature of the infrared emission PTC conductive film is 45-55 ℃; the infrared reflection film has an infrared reflectivity of greater than 60%.
2. The single-sided heated self-temperature-limiting far infrared electrothermal film according to claim 1, wherein the transparent expansion glue layer is used for attaching an infrared reflection film and an infrared emission PTC conductive film with a finger electrode.
3. The single-sided heating self-temperature-limiting far infrared electrothermal film according to claim 1, wherein the finger electrode is a silver electrode or a copper electrode, is screen-printed or pressed on an infrared emission PTC conductive film, and is externally led out by a lead for electrification.
4. The single-sided heating self-temperature-limiting far infrared electrothermal film according to claim 1, wherein the lower insulating film is made of a heat-insulating waterproof wear-resistant material, and the upper insulating film is made of a heat-conducting waterproof wear-resistant material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920476390.8U CN210518878U (en) | 2019-04-03 | 2019-04-03 | Single-side heating self-temperature-limiting far infrared electrothermal film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920476390.8U CN210518878U (en) | 2019-04-03 | 2019-04-03 | Single-side heating self-temperature-limiting far infrared electrothermal film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210518878U true CN210518878U (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920476390.8U Active CN210518878U (en) | 2019-04-03 | 2019-04-03 | Single-side heating self-temperature-limiting far infrared electrothermal film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210518878U (en) |
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2019
- 2019-04-03 CN CN201920476390.8U patent/CN210518878U/en active Active
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