Graphene heating film
By using the design of FPC wires and metal conductive layer in the graphene heating film, the uneven problem caused by large wire diameters is solved, and a smoother user contact experience and stable electrical connection are achieved.
Patent Information
- Application Number
- CN202420625501.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-03-29
AI Technical Summary
The existing graphene heating film modules have large wire diameters, which lead to uneven overall, and users have a clear sense of foreign matter when they come into contact.
The FPC cable structure is adopted, and the cable is arranged inside the packaging layer, and the electrical connection is made with the graphene film at the end of the cable. The sheet pressing part of the rivet ensures stable conduction between the positive and negative electrodes and the graphene heating film.
The flatness of the graphene heating film is achieved, reducing the sense of foreign matter, and avoiding the problem of poor contact with the contact.
Smart Images
Figure CN222602607U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of resistance heating components, in particular to a graphene heating film. Background Art
[0002] Graphene is a two-dimensional nanomaterial with many excellent properties, such as high theoretical specific surface area, ultra-high electron mobility, high thermal conductivity, high Young's modulus and high transmittance, etc. It is widely used in the field of heating. At present, the graphene heating devices on the market all use the die-cut graphene film as the heat source, and are electrically connected to the external power supply through wires to provide electrical energy to the graphene film, thereby achieving the effect of heating. Compared with conventional heating wires, the heating of graphene film has the advantages of uniform heating and fast speed to reach saturation temperature. In addition, the contact surface of graphene film with the human body is larger than that of heating wire, which brings a better experience to users. Although the graphene heating film itself is in the state of a film, the wires that transmit electrical energy to the graphene are two slender cylindrical objects. Since the diameter of the wire is larger than the overall thickness of the graphene heating film, the overall unevenness of the graphene heating film assembly causes users to have a significant foreign body sensation when in contact with the graphene heating film. Utility Model Content
[0003] The utility model aims to provide a graphene heating film, comprising a packaging layer, an FPC cable, a graphene heating film and a rivet, wherein the packaging layer is coated on the surface of the graphene heating film to isolate the graphene heating film from the outside; the FPC cable comprises a positive terminal, a negative terminal and a connector end, the positive terminal and the negative terminal are located in the packaging layer and electrically connected to the graphene, and the connector end extends outside the packaging layer; the positive terminal and the negative terminal are pressed and connected to the graphene heating film through the rivet.
[0004] In a further technical solution, a conductive layer is provided on the surface of the positive terminal and the negative terminal, and the conductive layer is in contact with the graphene heating film surface.
[0005] In a further technical solution, the conductive layer includes any one of metals or alloy materials such as copper, iron, gold, silver, molybdenum, etc.
[0006] In a further technical solution, the encapsulation layer includes an upper encapsulation layer and a lower encapsulation layer made of the same material.
[0007] In a further technical solution, the upper packaging layer and the lower packaging layer are insulating films.
[0008] In a further technical solution, glue is provided on the sides of the upper packaging layer and the lower packaging layer that are in contact with the graphene heating film.
[0009] In a further technical solution, the rivet part includes a pressing sheet part, an integrally formed rivet part is arranged above the pressing sheet part, a pressing platform part is provided at the end of the rivet part, and the diameter of the pressing platform part is larger than the rivet part; the pressing sheet part contacts the surface of the lower packaging layer, and the rivet part sequentially penetrates the lower packaging layer, the graphene heating film, the FPC cable and the upper packaging layer, and the pressing platform part is located above the upper packaging layer, and cooperates with the pressing sheet part to press the lower packaging layer, the graphene heating film, the FPC cable and the upper packaging layer together.
[0010] A further technical solution further includes a gasket, which is arranged between the upper package and the pressing platform part and is sleeved in the rivet part.
[0011] In a further technical solution, two rivet parts are arranged side by side above the pressing part.
[0012] In a further technical solution, the graphene heating film is in the shape of a meandering strip, and an NTC thermistor is also provided on the FPC cable.
[0013] Compared with the prior art, the utility model has the following advantages:
[0014] The graphene heating film provided by the utility model is more flatter than the traditional graphene heating film design, optimizes the connection structure between the traditional wire and the graphene heating film, adopts the FPC cable structure design, and sets the cable inside the packaging layer. At the same time, in order to ensure the safety of the device from electric shock, the metal conductive layer at the end of the cable is used to achieve electrical connection with the graphene film, and the rivet pressing part is used to ensure that the positive and negative ends of the cable are stably connected with the graphene heating film, which reduces the foreign body sensation of the heating device and avoids the problem of poor contact of the contact points. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0016] Figure 2 This is an exploded view of the utility model.
[0017] Figure 3 It is a schematic diagram of the cross-sectional structure of the riveting part of the utility model.
[0018] Explanation of reference numerals: 1-packaging layer, 11-upper packaging layer, 12-lower packaging layer, 2-FPC cable, 21-positive terminal, 22-negative terminal, 23-connector terminal, 24-NTC thermistor, 3-graphene heating film, 4-riveted part, 41-pressing part, 42-rivet part, 43-pressing platform part, 44-gasket. DETAILED DESCRIPTION
[0019] A graphene heating film comprises a packaging layer, an FPC cable, a graphene heating film and a rivet, wherein the packaging layer is coated on the surface of the graphene heating film to isolate the graphene heating film from the outside. The graphene heating film is in the shape of a meandering strip, and an NTC thermistor is also arranged on the FPC cable.
[0020] The FPC cable includes a positive terminal, a negative terminal and a connector terminal, the positive terminal and the negative terminal are located in the packaging layer and are electrically connected to the graphene, and the connector terminal extends outside the packaging layer; the surface of the positive terminal and the negative terminal is provided with a conductive layer, and the conductive layer is in contact with the graphene heating film surface. The conductive layer includes any one of metals or alloy materials such as copper, iron, gold, silver, molybdenum, etc. In this embodiment, the conductive layer is made of a metal material containing copper. In addition, an insulating tape is also provided at the contact point between the FPC cable and the graphene heating film for protection.
[0021] The encapsulation layer comprises an upper encapsulation layer and a lower encapsulation layer of the same material. The upper encapsulation layer and the lower encapsulation layer are insulating films. The upper encapsulation layer and the lower encapsulation layer are provided with glue on one side in contact with the graphene heating film.
[0022] The positive terminal and the negative terminal are pressed and connected with the graphene heating film through the rivet. In this embodiment, the rivet includes a pressing sheet portion, and two rivet portions are arranged side by side above the pressing sheet portion. A pressing platform portion is provided at the end of the rivet portion, and the diameter of the pressing platform portion is larger than the rivet portion; the pressing sheet portion contacts the surface of the lower packaging layer, and the rivet portion sequentially passes through the lower packaging layer, the graphene heating film, the FPC cable and the upper packaging layer, and the pressing platform portion is located above the upper packaging layer, and cooperates with the pressing sheet component to press the lower packaging layer, the graphene heating film, the FPC cable and the upper packaging layer together. A gasket is also included, which is arranged between the upper packaging and the pressing platform portion, and is sleeved in the rivet portion.
[0023] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] The present invention is further described below by way of examples. Unless otherwise specified, the materials in the examples are prepared according to existing methods or purchased directly from the market.
[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. A graphene heating film, characterized in that: It includes a packaging layer, an FPC cable, a graphene heating film and a rivet. The packaging layer is coated on the surface of the graphene heating film to isolate the graphene heating film from the outside; the FPC cable includes a positive terminal, a negative terminal and a connector terminal. The positive terminal and the negative terminal are located in the packaging layer and are electrically connected to the graphene, and the connector end extends outside the packaging layer; the positive terminal and the negative terminal are pressed and connected to the graphene heating film through the rivet.
2. A graphene heating film according to claim 1, characterized in that: A conductive layer is provided on the surface of the positive terminal and the negative terminal, and the conductive layer is in contact with the graphene heating film surface.
3. A graphene heating film according to claim 2, characterized in that: The conductive layer includes any one of copper, iron, gold, silver and molybdenum materials.
4. The graphene heating film according to claim 1, characterized in that: The packaging layer comprises an upper packaging layer and a lower packaging layer made of the same material.
5. A graphene heating film according to claim 4, characterized in that: The upper encapsulation layer and the lower encapsulation layer are insulating films.
6. A graphene heating film according to claim 5, characterized in that: The upper packaging layer and the lower packaging layer are provided with glue on the sides in contact with the graphene heating film.
7. A graphene heating film according to claim 6, characterized in that: The rivet part includes a pressing piece part, an integrally formed rivet part is arranged above the pressing piece part, a pressing platform part is arranged at the end of the rivet part, and the diameter of the pressing platform part is larger than the rivet part; the pressing piece part contacts the surface of the lower packaging layer, and the rivet part sequentially penetrates the lower packaging layer, the graphene heating film, the FPC cable and the upper packaging layer, and the pressing platform part is located above the upper packaging layer, and cooperates with the pressing piece part to press the lower packaging layer, the graphene heating film, the FPC cable and the upper packaging layer together.
8. A graphene heating film according to claim 7, characterized in that: A gasket is also included, which is disposed between the upper package and the press platform portion and is sleeved in the rivet portion.
9. A graphene heating film according to claim 8, characterized in that: Two rivet parts are arranged in parallel above the pressing piece part.
10. The graphene heating film according to claim 1, characterized in that: The graphene heating film is in the shape of a meandering strip, and an NTC thermistor is also provided on the FPC cable.