Light-transmitting heating film for vehicle lamp

Abstract

The utility model provides a light-transmitting heating film for a car lamp, and belongs to the technical field of heating films. The problem that an electric heating wire of an existing car lamp lighting mask heating system is prone to falling off is solved. The light-transmitting heating film for the car lamp comprises a light-transmitting film sheet, one side of the film sheet is provided with at least one embedding groove which is arranged in a snake shape, a heating wire is embedded in the embedding groove, and the heating wire and the film sheet are fixedly connected in a welding mode. The light-transmitting heating film for the car lamp has the advantages that the heating wire and the diaphragm are not prone to falling off, and the heating effect of the light-transmitting heating film is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of heating films and relates to a light-transmitting heating film for a vehicle lamp. Background Art

[0002] Headlights are the lighting tools for cars driving at night. In certain weather and natural environments, the headlight masks are prone to condensation or adhesion of ice, snow, frost, fog, etc., which seriously affects the lighting effect of the headlights and reduces driving safety.

[0003] In response to the above problems, people have made various improvements, and some have even applied for patents. For example, Chinese patent literature discloses a headlight lighting mask heating system [patent number: 202223016916.5; authorization announcement number: CN218883771U], which includes a headlight mask and a lamp housing, which are movably connected to each other. A conductive thermal resistor is arranged inside the headlight mask, and the conductive thermal resistor is adhered to the inside of the headlight mask by solid glue. A first conductive contact is arranged at one end of the conductive thermal resistor, a decorative frame is fixed inside the headlight mask, a lamp driving circuit board is fixed at the top of the lamp housing, an external temperature sensor is arranged on the back of the lamp driving circuit board, and an internal temperature sensor is arranged inside the headlight mask.

[0004] In the heating system of this structure, a conductive thermal resistor is fixedly connected to the inside of the headlight mask by solid glue. When the power is turned on, the conductive thermal resistor generates heat, which can remove the ice, snow, frost and fog condensed or attached to the headlight mask, ensure the lighting effect of the headlight and improve driving safety. However, in the heating system of this structure, the conductive thermal resistor is fixedly connected to the inside of the headlight mask by solid glue. The glue is easy to age, so that the conductive thermal resistor may separate or even fall off, reducing the heating effect of the conductive thermal resistor and the effect of the conductive thermal resistor in removing ice, snow, frost and fog, so that the headlight cannot restore the normal lighting state in time, and there is still a great risk when driving. Summary of the invention

[0005] The purpose of the utility model is to solve the above problems existing in the prior art and to propose a light-transmitting heating film for vehicle lamps. The technical problem solved is how to prevent the heating wire and the diaphragm from falling off and ensure the heating effect of the light-transmitting heating film.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a light-transmitting heating film for a vehicle lamp, comprising a light-transmitting diaphragm, characterized in that one side of the diaphragm has at least one embedding groove arranged in a serpentine shape, a heating wire is embedded in the embedding groove, and the heating wire and the diaphragm are fixedly connected by welding.

[0007] The setting of the embedded groove is for the heating wire to be embedded, so that the heating wire and the diaphragm can be better combined. The heating wire and the diaphragm are fixedly connected by welding, so that the heating wire and the diaphragm are firmly connected, and the heating wire and the diaphragm are not easy to fall off, so as to ensure the heating effect of the light-transmitting heating film. The embedded groove is arranged in a serpentine shape, so that the heating wire is also arranged in a serpentine shape, so that the heating wire is heated evenly and the heating effect is improved. When the light-transmitting heating film is applied to the headlight, it can better remove ice, snow, frost and fog, improve the lighting effect and improve driving safety. The welding method is fixedly connected. First, the heating wire can be embedded in the embedded groove to contact the diaphragm by heating the heating wire, so that the diaphragm melts, and after the melted part cools down, the heating wire can be wrapped, so that the heating wire and the diaphragm are fixedly connected; second, the diaphragm can be melted at the embedded groove by laser heating, and then the heating wire is embedded, and after the melted part cools down, the heating wire can be wrapped, so that the heating wire and the diaphragm are fixedly connected.

[0008] In the above-mentioned light-transmitting heating film for vehicle lamps, the cross section of the embedding groove is square, the cross section of the heating wire is square, the heating wire is entirely embedded in the embedding groove, and the heating wire is entirely located in the diaphragm. This structure facilitates the embedding of the heating wire into the diaphragm, so that the heating wire and the diaphragm can be better combined, the heating wire is not exposed, the firmness of the heating wire and the diaphragm after being fixed is improved, and the heating wire and the diaphragm are not easy to fall off, thereby ensuring the heating effect of the light-transmitting heating film; the embedding groove and the heating wire can be rounded at the corners.

[0009] In the above-mentioned light-transmitting heating film for vehicle lamps, the outer side wall of the heating wire is flush with the side surface of one side of the film. With this structure, after the heating wire is embedded in the film, the outer side wall of the light-transmitting heating film is flat and smooth, so that the heating wire is not easily touched by external forces during transportation and storage, and the heating wire is not easy to fall off.

[0010] In the above-mentioned light-transmitting heating film for vehicle lamps, the height of the heating wire is 1 / 4-1 / 2 of the thickness of the film, so that the heating wire has sufficient heating effect while ensuring the strength of the film.

[0011] As another case, in the above-mentioned light-transmitting heating film for vehicle lamps, the cross section of the embedding groove is circular, the cross section of the heating wire is circular, the heating wire is entirely embedded in the embedding groove, and the heating wire is entirely located in the diaphragm. This structure enables the heating wire to be better combined with the diaphragm, the heating wire is not exposed, and the firmness of the connection between the heating wire and the diaphragm is improved, so that the heating wire and the diaphragm are not easy to fall off, thereby ensuring the heating effect of the light-transmitting heating film.

[0012] As a third case, in the above-mentioned light-transmitting heating film for vehicle lamps, the cross section of the embedding groove is semicircular, the cross section of the heating wire is circular, half of the heating wire is embedded in the embedding groove, and the heating wire is partially protruding outside one side of the film. This structure facilitates the welding of the heating wire and the film.

[0013] In the above-mentioned light-transmitting heating film for vehicle lamps, the outer diameter of the heating wire is 1 / 4-1 / 2 of the thickness of the film, so that the heating wire has sufficient heating effect while ensuring the strength of the film.

[0014] In the above-mentioned light-transmitting heating film for vehicle lamps, the number of the embedding grooves is 2-4, two adjacent embedding grooves are arranged closely, and all the embedding grooves are arranged in a serpentine shape as a whole. This structure makes the heating wire more uniform and improves the heating effect.

[0015] In the above-mentioned light-transmitting heating film for vehicle lamps, one side of the film sheet further has at least one pair of extension grooves, the inner ends of each pair of the extension grooves are respectively connected to the two ends of the embedding groove, and the extension groove is for the heating wire to be embedded. The heating wire needs to be powered, and the corresponding heating wire is extended through the extension groove, so that the heating wire can be better connected to an external power source and can be better conductively heated.

[0016] In the above-mentioned light-transmitting heating film for vehicle lamps, the outer ends of all the extended grooves extend to the same area of ​​the edge of the film. This structure enables the heating wires of the external power supply to be located in the same area, and the arrangement is reasonable, making it convenient to connect the heating wires to the external power supply.

[0017] Compared with the prior art, the light-transmitting heating film for vehicle lamps provided by the utility model has the following advantages:

[0018] 1. This light-transmitting heating film embeds the electric heating wire into the diaphragm and connects them by welding, so that the heating wire and the diaphragm are firmly connected and are not easy to fall off, thereby ensuring the heating effect of the light-transmitting heating film.

[0019] 2. The heating wire of this light-transmitting heating film is heated evenly. When applied to car lights, it can better remove ice, snow, frost and fog, improve lighting effects and improve driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall layout of the light-transmitting heating film.

[0021] Figure 2 It is a schematic diagram of the structure of the first embodiment of the light-transmitting heating film in which the heating wire is embedded in the film.

[0022] Figure 3This is a schematic diagram of the structure in which the heating wire is embedded in the membrane in the second embodiment of the light-transmitting heating film.

[0023] Figure 4 This is a schematic diagram of the structure in which the heating wire of the third embodiment of the light-transmitting heating film is embedded in the film.

[0024] In the figure, 1, diaphragm; 2, embedded groove; 3, heating wire; 4, extension groove. DETAILED DESCRIPTION

[0025] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0026] Embodiment 1

[0027] like Figure 1 As shown, the light-transmitting heating film for vehicle lamps comprises a light-transmitting film 1 and a heating wire 3 .

[0028] In this embodiment, one side of the diaphragm 1 has two embedded grooves 2 arranged in a serpentine shape, and two adjacent embedded grooves 2 are arranged closely, and all the embedded grooves 2 are arranged in a serpentine shape as a whole. One side of the diaphragm 1 also has two pairs of extended grooves 4, and the inner ends of each pair of extended grooves 4 are respectively connected to the two ends of the embedded grooves 2, and the outer ends of all the extended grooves 4 extend to the same area of ​​the edge of the diaphragm 1. In actual production, the number of embedded grooves 2 can be one or four, and the number of extended grooves 4 can be one pair or four pairs.

[0029] like Figure 2 As shown, the cross section of the embedding groove 2 is square, the cross section of the heating wire 3 is square, the embedding groove 2 is provided with the heating wire 3, the heating wire 3 is embedded in the embedding groove 2 as a whole, the heating wire 3 is located in the diaphragm 1 as a whole, the heating wire 3 and the diaphragm 1 are fixedly connected by welding, the outer side wall of the heating wire 3 is flush with the side surface of one side of the diaphragm 1, the extension groove 4 is for the heating wire 3 to be embedded, and the heating wire 3 is located in the extension groove 4 as a whole. In this embodiment, the height of the heating wire 3 is 1 / 3 of the thickness of the diaphragm 1. In actual production, the height of the heating wire 3 can be 1 / 4 or 1 / 2 of the thickness of the diaphragm 1.

[0030] During processing, firstly, a serpentine-shaped embedding groove 2 is processed on the diaphragm 1, and then the heating wire is embedded in the embedding groove 2, and the heating wire and the diaphragm 1 are fixedly connected by welding.

[0031] Embodiment 2

[0032] like Figure 3As shown, the structure and principle of this embodiment are basically the same as those of the first embodiment. The difference is that, in this embodiment, the cross-section of the embedding groove 2 is circular, the cross-section of the heating wire 3 is circular, the heating wire 3 is embedded in the embedding groove 2 as a whole, the heating wire 3 is located in the diaphragm 1 as a whole, and the outer diameter of the heating wire 3 is 1 / 3 of the thickness of the diaphragm 1. In actual production, the outer diameter of the heating wire 3 is 1 / 4 or 1 / 2 of the thickness of the diaphragm 1.

[0033] Embodiment 3

[0034] like Figure 4 As shown, the structure and principle of this embodiment are basically the same as those of the first embodiment. The difference is that, in this embodiment, the cross-section of the embedding groove 2 is semicircular, the cross-section of the heating wire 3 is circular, half of the heating wire 3 is embedded in the embedding groove 2, and the heating wire 3 is partially protruding outside one side of the diaphragm 1. The outer diameter of the heating wire 3 is 1 / 3 of the thickness of the diaphragm 1. In actual production, the outer diameter of the heating wire 3 is 1 / 4 or 1 / 2 of the thickness of the diaphragm 1.

[0035] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0036] Although the terms such as diaphragm 1, embedded slot 2, heating wire 3, extended slot 4 are used more frequently in this article, the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A light-transmitting heating film for a vehicle lamp, comprising a light-transmitting film (1), characterized in that: One side of the diaphragm (1) has at least one embedding groove (2) arranged in a serpentine shape, a heating wire (3) is embedded in the embedding groove (2), and the heating wire (3) and the diaphragm (1) are fixedly connected by welding.

2. The light-transmitting heating film for vehicle lamps according to claim 1, characterized in that: The embedding groove (2) has a square cross-section, the heating wire (3) has a square cross-section, the heating wire (3) is entirely embedded in the embedding groove (2), and the heating wire (3) is entirely located in the diaphragm (1).

3. The light-transmitting heating film for vehicle lamps according to claim 2, characterized in that: The outer side wall of the heating wire (3) is flush with the side surface of one side of the diaphragm (1).

4. A light-transmitting heating film for a vehicle lamp according to claim 2 or 3, characterized in that: The height of the heating wire (3) is 1 / 4-1 / 2 of the thickness of the diaphragm (1).

5. The light-transmitting heating film for vehicle lamps according to claim 1, characterized in that: The cross section of the embedding groove (2) is circular, the cross section of the heating wire (3) is circular, the heating wire (3) is entirely embedded in the embedding groove (2), and the heating wire (3) is entirely located in the diaphragm (1).

6. The light-transmitting heating film for vehicle lamps according to claim 1, characterized in that: The cross section of the embedding groove (2) is semicircular, the cross section of the heating wire (3) is circular, half of the heating wire (3) is embedded in the embedding groove (2), and part of the heating wire (3) is protruding outside one side of the diaphragm (1).

7. A light-transmitting heating film for a vehicle lamp according to claim 5 or 6, characterized in that: The outer diameter of the heating wire (3) is 1 / 4-1 / 2 of the thickness of the diaphragm (1).

8. A light-transmitting heating film for a vehicle lamp according to claim 1, 2 or 3, characterized in that: The number of the embedding grooves (2) is 2-4, two adjacent embedding grooves (2) are arranged closely together, and all the embedding grooves (2) are arranged in a serpentine shape as a whole.

9. A light-transmitting heating film for vehicle lamps according to claim 1, 2 or 3, characterized in that: One side of the diaphragm (1) also has at least one pair of extended grooves (4), the inner ends of each pair of the extended grooves (4) are respectively connected to the two ends of the embedding groove (2), and the extended grooves (4) are used for embedding the heating wire (3).

10. The light-transmitting heating film for vehicle lamps according to claim 9, characterized in that: The outer ends of all the extended grooves (4) extend to the same area of ​​the edge of the diaphragm (1).

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