Highly transparent heating sheet

Abstract

The utility model discloses a kind of high-transparency heating sheet, comprising: transparent film and heat circuit in transparent film, transparent film includes first PET cover film and second PET cover film, heat circuit is covered between first PET cover film and second PET cover film, second PET cover film outside is coated with Pi adhesive tape, Pi adhesive tape side is provided with thermistor, second PET cover film and heat circuit opposite side are pasted with transparent double-sided adhesive, the utility model has the following advantages: the utility model provides heating sheet using high-transparency base material, with small heat circuit, while meeting heating demand, light transmittance can be considered, and thermistor is built-in on heating sheet, temperature of heat circuit is monitored in real time, and sealing is carried out through transparent silicone wire end, not only strengthen structural strength, but also effectively waterproof and dustproof.

Description

Technical Field

[0001] This utility model relates to the field of heating element technology, specifically to a highly transparent heating element. Background Technology

[0002] With the opening up of the low-altitude economy by the government, the demand in the drone industry has surged, and the performance requirements for drones have also increased accordingly. However, when drones fly in cold weather, low battery temperatures severely shorten their flight time. To ensure long-lasting operation and stable flight, manufacturers typically use heating elements to control battery temperature, while also requiring higher light transmittance to allow personnel to observe the drone's internal structure through the camera. However, most heating elements on the market are currently Pi-type heating elements, which have low light transmittance and a small light-transmitting area. Therefore, a highly transparent heating element is proposed to solve these problems. Utility Model Content

[0003] To solve the problems mentioned above, the technical solution adopted by this utility model is: a highly transparent heating sheet, comprising: a transparent film and heating circuits laminated in the transparent film, wherein the transparent film comprises a first PET cover film and a second PET cover film, the heating circuits are laminated between the first PET cover film and the second PET cover film, a Pi tape is coated on the outer side of the second PET cover film, a thermistor is disposed on one side of the Pi tape, and a transparent double-sided adhesive is pasted on the side of the second PET cover film opposite to the heating circuits.

[0004] As a preferred embodiment of this utility model, the heating circuit terminal is located on one side of the Pi tape and connected to a silicone wire by solder, and the thermistor pin is also connected to a silicone wire by solder.

[0005] In a preferred embodiment of this invention, the heating circuit and the thermistor are connected inside the connector via corresponding silicone wires, and the connector model is MX44004SF1.

[0006] As a preferred technical solution of this utility model, the transparent double-sided adhesive is model 3M467, and the thickness of both the first PET cover film and the second PET cover film is 0.13mm.

[0007] As a preferred embodiment of this utility model, the Pi tape has a thickness of 0.06 mm, and the thermistor is model 395012610K.

[0008] As a preferred embodiment of this utility model, the Pi tape is coated with transparent silicone on the surface of the thermistor side, the heating circuit is made of H65 copper, and the thickness of the heating circuit is 0.05mm.

[0009] The present invention has the following advantages: The heating element provided by the present invention is made of a highly transparent substrate and equipped with a fine heating circuit, which can meet the heating requirements while also taking into account the light transmittance.

[0010] The heating element has a built-in thermistor for real-time monitoring of the temperature of the heating circuit, and is sealed with transparent silicone terminals, which not only strengthens the structure but also effectively prevents water and dust. Attached Figure Description

[0011] Fig. 1 This is a schematic diagram of the overall structure of the heating element according to a preferred embodiment of the present invention;

[0012] Fig. 2 This is a schematic diagram of the disassembled structure of the heating element according to a preferred embodiment of the present invention;

[0013] Fig. 3 This is a schematic diagram of the heating element's operating principle in a preferred embodiment of this utility model.

[0014] Explanation of reference numerals in the attached drawings: 1. First PET cover film; 2. Heating circuit; 3. Second PET cover film; 4. Pi tape; 5. Thermistor; 6. Transparent silicone; 7. Transparent double-sided tape; 8. Silicone wire; 9. Connector. Detailed Implementation

[0015] The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Please refer to the following: Figs. 1-3 This utility model discloses a highly transparent heating element, comprising: a transparent film and a heating circuit 2 laminated in the transparent film. The transparent film includes a first PET cover film 1 and a second PET cover film 3. The heating circuit 2 is laminated between the first PET cover film 1 and the second PET cover film 3. The outer side of the second PET cover film 3 is coated with Pi tape 4. A thermistor 5 is disposed on one side of the Pi tape 4. A transparent double-sided adhesive 7 is pasted on the side of the second PET cover film 3 opposite to the heating circuit 2.

[0019] The heating circuit 2 is connected to the silicone wire 8 by solder on one side of the Pi tape 4. The thermistor 5 is also connected to the silicone wire 8 by solder at its pin. The heating circuit 2 and the thermistor 5 are connected to the connector 9 through the corresponding silicone wire 8. The connector 9 is model MX44004SF1. The transparent double-sided tape 7 is model 3M467. The thickness of the first PET cover film 1 and the second PET cover film 3 is 0.13mm. The thickness of the Pi tape 4 is 0.06mm. The thermistor 5 is model 395012610K. The surface of the Pi tape 4 on one side of the thermistor 5 is coated with transparent silicone 6. The heating circuit 2 is made of H65 copper and has a thickness of 0.05mm.

[0020] Specifically, this utility model heating element is covered with a high-transparency PET insulating film on both sides (first PET cover film 1 and second PET cover film 3). The back side (outside of the second PET cover film 3) is covered with a substrate-free transparent double-sided adhesive tape 7. It has a built-in NTC temperature sensor (thermometer 5) for controlling the temperature of the heating circuit 2. It is equipped with a wire group (silicone wire 8) to facilitate the connection of the heating element to the temperature control module through the silicone wire 8 and connector 9. The heating element is also connected to the power supply of the equipment through the temperature control module. The heating element can meet the heating requirements of the equipment while having excellent light transmittance.

[0021] The heating element substrate is a 0.13mm thick PET pre-coated film (first PET cover film 1), which is first bonded to a 0.05mm thick copper foil, and then uniform and fine heating lines 2 are etched out. Another 0.13mm thick PET pre-coated film (second PET cover film 3) is then applied to the surface, and a substrate-free transparent double-sided adhesive tape 7 is pasted on the back for easy attachment to the equipment. The shape and hole positions can be punched according to requirements. The NTC temperature sensor (thermometer 5) is soldered to the predetermined position, and after soldering the wire assembly, a high-transparency silicone coating is applied for waterproofing and insulation.

[0022] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

[0023] The other parts not described in detail in the utility model all belong to the prior art, and therefore will not be described here again.

[0024] Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solutions of the utility model, and are not limited thereto; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A highly transparent heating element, characterized in that, include: A transparent film and a heating circuit (2) embedded in the transparent film, the transparent film including a first PET cover film (1) and a second PET cover film (3), the heating circuit (2) being embedded between the first PET cover film (1) and the second PET cover film (3), the outer side of the second PET cover film (3) being coated with Pi tape (4), a thermistor (5) being provided on one side of the Pi tape (4), and transparent double-sided tape (7) being pasted on the opposite side of the second PET cover film (3) from the heating circuit (2).

2. The highly transparent heating element as described in claim 1, characterized in that, The heating circuit (2) terminal is located on one side of the Pi tape (4) and is connected to the silicone wire (8) by solder. The thermistor (5) pin is also connected to the silicone wire (8) by solder.

3. The highly transparent heating element as described in claim 1, characterized in that, The heating circuit (2) and the thermistor (5) are connected inside the connector (9) through corresponding silicone wires (8). The connector (9) is model MX44004SF1.

4. The highly transparent heating element as described in claim 1, characterized in that, The transparent double-sided adhesive (7) is model 3M467, and the thickness of the first PET cover film (1) and the second PET cover film (3) is 0.13mm.

5. A highly transparent heating element as described in claim 1, characterized in that, The thickness of the Pi tape (4) is 0.06 mm, and the thermistor (5) is model 395012610K.

6. A highly transparent heating element as described in claim 1, characterized in that, The Pi tape (4) is coated with transparent silicone (6) on one side of the thermistor (5). The heating circuit (2) is made of H65 copper and has a thickness of 0.05 mm.

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