TWI708910B - Method for manufacturing electric heating element of lampshade for vehicle and its finished product - Google Patents

Abstract

A manufacturing method of an electric heating element of a lampshade for a vehicle and a finished product thereof. The manufacturing method includes the following steps:

First insulating film cloth glue: applying a strong adhesive on the surface of a first insulating film to form a first glue layer;

Forming an electric heating circuit: on the surface of the first adhesive layer, a conductive material is printed to form an electric heating circuit to be bonded to the first adhesive layer;

Second insulating film cloth glue: applying a strong adhesive on the surface of a second insulating film to form a second glue layer;

Laminating the second insulating film: bonding the second adhesive layer and the heating circuit, and bonding the first adhesive layer and the second adhesive layer to each other;

Drying: drying the electric heating circuit to shape the electric heating circuit; and

Cutting: Cooperate with the cutting of the electric heating circuit to make the electric heating element accordingly.

When the electric heating element is attached to the vehicle lampshade, the area of the vehicle lampshade covered by the electric heating element can be effectively reduced, and the influence on the refraction of light passing through the vehicle lampshade can be reduced.

Description

Method for manufacturing electric heating element of lampshade for vehicle and its finished product

The present invention relates to a lampshade for a vehicle, and more particularly, to a method for manufacturing an electric heating element of a lampshade for a vehicle and an electric heating element produced by the method.

The car lamp assembly of a car includes a lamp housing, a light-emitting assembly and a car lamp cover, wherein the light-emitting assembly is arranged inside the lamp housing, and the vehicle lamp cover made of light-transmitting material is arranged on one side of the lamp housing , The light emitting component emits light, and the light is projected to the outside through the vehicle lampshade. With the structure of the vehicle lampshade, the light emitted by the light emitting component passes through the vehicle lampshade and is projected outward along a specific angle. When the temperature drops sharply, the moisture in the air inside the car lamp assembly is likely to condense on the surface of the car lampshade facing the light emitting assembly, which affects the brightness and travel path of the emitted light.

In view of this, the inventor of this case actively carried out research and development based on his experience in electric heating related technologies, and finally obtained an innovative and industrially valuable invention.

The main purpose of the present invention is to provide a method for manufacturing an electric heating element of a lampshade for a vehicle. The electric heating element made by the first manufacturing method can provide heat energy by passing an electric current, thereby removing moisture condensed on the lampshade for a vehicle. Or snow.

In order to meet the foregoing objectives, the present invention provides a method for manufacturing an electric heating element of a lampshade for vehicles, which includes the following steps:

First insulating film cloth glue: take a thin film made of insulating material as the first insulating film, and apply a strong adhesive on a surface of the first insulating film to form a first glue layer;

Forming an electric heating circuit: on the surface of the first adhesive layer facing away from the first insulating film, an electric heating circuit is formed by printing with a conductive material, and the electric heating circuit is bonded to the first adhesive layer;

Second insulating film cloth glue: take a thin film made of insulating material as the second insulating film, and apply a strong adhesive on a surface of the second insulating film to form a second glue layer;

Laminating the second insulating film: stacking the second insulating film and the second glue on the electric heating circuit, making the second glue layer adhere to the electric heating circuit, and the first glue layer and the second glue layer Glue to each other

Drying: drying the electric heating circuit to shape the electric heating circuit; and

Cutting: Cooperate with the cutting of the electric heating circuit, leaving the first insulating film, the first adhesive layer, the second insulating film, and the part of the second adhesive layer opposite to the electric heating circuit, thereby making the electric heating element .

The present invention further provides an electric heating element cover, which is obtained by implementing the aforementioned method for manufacturing an electric heating element of a vehicle lamp cover.

When the electric heating element manufactured by the manufacturing method is attached to the vehicle lampshade, the area of the vehicle lampshade covered by the electric heating element can be effectively reduced, and the influence on the refraction of the light passing through the vehicle lampshade can be reduced.

10: Electric heating element

11: The first insulating film

12: The first adhesive layer

13: Electric heating circuit

14: second insulating film

15: second adhesive layer

3-3: The cross-section of the heating element is shown in Figure 3

5-5: The cross section of the heating element is shown in Figure 5

[Figure 1] is a flowchart of the first embodiment of the manufacturing method of the present invention.

[Figure 2] is an electric heating element made by implementing the first embodiment of the manufacturing method of the present invention front view.

[Figure 3] is a 3-3 cross-sectional view of Figure 2.

[Figure 4] is a front view of an electric heating element manufactured by implementing the second embodiment of the manufacturing method of the present invention.

[Figure 5] is a cross-sectional view of 5-5 in Figure 4.

[Figure 6] is a flowchart of the third embodiment of the manufacturing method of the present invention.

As shown in Figs. 1 to 3, the first embodiment of the method for manufacturing an electric heating element of a lampshade for a vehicle of the present invention includes the following steps:

First insulating film cloth glue: take a thin film made of insulating material as the first insulating film (11), and apply a strong adhesive on a surface of the first insulating film (11), and apply it to the first insulating film (11) accordingly. A first adhesive layer (12) is formed on a surface of an insulating film (11); the first insulating film (11) may be formed of polyethylene terephthalate (abbreviated as PET).

Forming an electric heating circuit: On the surface of the first adhesive layer (12) facing away from the first insulating film (11), an electric heating circuit (13) is formed by printing with a conductive material, and the electric heating circuit (13) and the first adhesive The layer (12) is bonded, and the conductive material can be conductive silver paste.

Second insulating film cloth glue: take a thin film made of insulating material as the second insulating film (14), apply a strong adhesive on a surface of the second insulating film (14), and apply it to the A second adhesive layer (15) is formed on one surface of the two insulating films (14); the second insulating film (14) can be formed of polyethylene terephthalate (abbreviated as PET).

Laminating the second insulating film: stack the second insulating film (14) and the second adhesive layer (15) on the electric heating circuit (13) so that the second adhesive layer (15) and the electric heating circuit (13) ) Bonding, and the first glue The layer (12) and the part of the second adhesive layer (15) not connected with the heating circuit (13) are bonded to each other.

Drying: drying the electric heating circuit (13) to shape the electric heating circuit (13). as well as

Cutting: Cutting according to the shape of the heating circuit (13), leaving the first insulating film (11), the first adhesive layer (12), the second insulating film (14) and the second adhesive layer (15) ) The part opposite to the heating circuit (13), remove the first insulating film (11), the first adhesive layer (12), the second insulating film (14) and the second adhesive layer (15) For other parts, an electric heating element (10) is made accordingly; the cutting step can be performed by using a knife mold prepared in advance according to the shape of the electric heating circuit (13).

The electric heating element (10) obtained by implementing the first embodiment of the foregoing manufacturing method is used to attach a lampshade for a vehicle (not shown in the figure), and accordingly provide heat energy to promote the heating of the lampshade for the vehicle, the heating element ( 10) Including a first insulating film (11), a first adhesive layer (12), an electric heating circuit (13), a second adhesive layer (15) and a second insulating film (14), wherein the An insulating film (11), the first adhesive layer (12), the electric heating circuit (13), the second adhesive layer (15) and the second insulating film (14) overlap.

When the current passes through the electric heating circuit (13), the material resistance of the electric heating circuit (13) can make the heating circuit (13) heat up and generate heat. According to this, when the electric heating element (10) is installed on the vehicle lampshade (Figure (Not shown in), the heat generated by the electric heating element (10) can promote the temperature of the lampshade for the car to prevent the moisture in the air from condensing on the lampshade for the car, and to ensure the brightness and travel path of the light emitted by the car lamp. When moisture or snow is condensed on the surface of the vehicle lampshade, the electric heating circuit (13) provides heat energy to promote the temperature of the vehicle lampshade, and can remove the water vapor or snow condensed on the surface of the vehicle lampshade.

When the car light rays are projected out of the car lampshade, the area of the refraction caused by the influencing light passing through the car lampshade can be reduced.

Furthermore, the first insulating film (11) and the second insulating film (14) are attached to the electric heating circuit (13) through the first adhesive layer (12) and the second adhesive layer (15), respectively, And the first adhesive layer (12) and the The second adhesive layer (15) is respectively formed by an adhesive with strong viscosity. When the cutting step is performed, the electric heating circuit (13) will not be affected by friction, stretching, etc. caused by the cutting tool. The electric heating circuit (13) is not easily deviated or broken, so that the electric heating element (10) after cutting can only retain the electric heating circuit (13) and the corresponding part of the electric heating circuit (13). The electric heating element The shape and area of (10) exactly match the electric heating circuit (13). After the electric heating element (10) is attached to the vehicle lampshade, the area of the vehicle lampshade covered by the electric heating element (10) can be effectively reduced. Reduce the impact on the refraction of light passing through the car lampshade.

As shown in Figures 4 and 5, when performing the cutting step in the first embodiment, the cutting range can also be selected and changed according to needs, leaving the first insulating film (11) and the heating circuit (13) slightly larger than the The first adhesive layer (12), the second insulating film (14), and the second adhesive layer (15) can avoid misalignment, resulting in a part of the heating circuit (13) being cut, reducing the cutting The difficulty of cutting.

As shown in FIG. 6, the second embodiment of the manufacturing method of the electric heating element of the lampshade for the vehicle of the present invention is mainly based on the aforementioned first embodiment, and further includes the following steps:

Double-sided cloth adhesive: After the cutting step is completed, a weak adhesive is placed on the outer surfaces of the first insulating film and the second insulating film, respectively, thereby forming two third adhesive layers.

Attach a release film: choose to attach a release film on any surface of the third adhesive layer.

The heating element obtained by performing the second embodiment of the aforementioned manufacturing method, due to the formation of the release film, can facilitate the stacking of a plurality of the heating elements in sequence, and the adjacent heating elements do not adhere to each other When the electric heating element is to be attached to the lampshade for the vehicle, the heating element can be directly used, and the third adhesive layer that is not attached to the release film is used to adhere to the lampshade for the vehicle, thereby improving the heating element After the manufacturing is completed, the convenience of stacking and storage and the convenience of installing the electric heating element on the lampshade for the vehicle.

In the step of attaching the release film in the foregoing third embodiment, it is also possible to choose to attach a release film to each of the third adhesive layers respectively, thereby forming a modified embodiment based on the third embodiment.

Claims (4)

A method for manufacturing an electric heating element of a lampshade for a vehicle includes the following steps: First insulating film cloth glue: take a thin film made of insulating material as the first insulating film, and apply a strong adhesive on a surface of the first insulating film to form a first glue layer; Forming an electric heating circuit: on the surface of the first adhesive layer facing away from the first insulating film, an electric heating circuit is formed by printing with a conductive material, and the electric heating circuit is bonded to the first adhesive layer; Second insulating film cloth glue: take a thin film made of insulating material as the second insulating film, and apply a strong adhesive on a surface of the second insulating film to form a second glue layer; Laminating the second insulating film: stacking the second insulating film and the second glue on the electric heating circuit, making the second glue layer adhere to the electric heating circuit, and the first glue layer and the second glue layer Glue to each other Drying: drying the electric heating circuit to shape the electric heating circuit; and Cutting: Cooperate with the cutting of the electric heating circuit, leaving the first insulating film, the first adhesive layer, the second insulating film, and the part of the second adhesive layer opposite to the electric heating circuit, thereby making the electric heating element . The method for manufacturing an electric heating element of a lampshade for a vehicle as described in claim 1, further comprising the following steps: Double-sided cloth adhesive: after the cutting step is completed, a weakly viscous adhesive is respectively laid on the outer surfaces of the first insulating film and the second insulating film, thereby forming two third adhesive layers; and Paste release film: a release film is attached to any surface of the third adhesive layer. The method for manufacturing an electric heating element of a lampshade for a vehicle according to claim 1 or 2, wherein the conductive material is conductive silver paste. An electric heating element, which is manufactured by implementing the method for manufacturing a lampshade for a vehicle with an electric heating element as described in claim 1; the heating element is used for attaching a lampshade for a vehicle, thereby providing heat energy to promote the lampshade for a vehicle Heat up The electric heating element includes a first insulating film, a first adhesive layer, an electric heating circuit, a second adhesive layer and a second insulating film, wherein the first insulating film, the first adhesive layer, the electric heating circuit, The second adhesive layer and the second insulating film overlap.

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