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Flexible circuit board for demisting car lamp and manufacturing process of flexible circuit board

A technology for flexible circuit boards and car lights, which is applied in the directions of flexible printed circuit boards, printed circuit manufacturing, use/removal methods of circuit masks, etc., can solve the problems of poor defogging effect, complex production process and high cost, and achieve The effect of saving production costs, simple production process, and thin and light products

Pending Publication Date: 2021-06-15
隽美经纬电路有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to provide a flexible circuit board and its manufacturing process for car lamp defogging, so as to solve the existing problems: the existing defogging device has a complex structure, and the mist is taken away by air circulation, and the defogging efficiency is low. Slower, poor defogging effect, and involves mechanical parts, the production process is complicated, the cost is high, and mass production is difficult

Method used

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  • Flexible circuit board for demisting car lamp and manufacturing process of flexible circuit board
  • Flexible circuit board for demisting car lamp and manufacturing process of flexible circuit board
  • Flexible circuit board for demisting car lamp and manufacturing process of flexible circuit board

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Embodiment 1

[0039] see Figure 1-3 As shown, the present invention is a flexible circuit board for car lamp defogging, including a substrate 1, the size of the substrate 1 is 100mm×100mm, the substrate 1 is composed of a first PET board and a CU, and the first PET board The thickness is 75 μm, and the thickness of CU is 1 μm;

[0040] The upper end of the substrate 1 is laminated with a dry film, the material of the dry film can be resin, and the thickness of the dry film is 5um-15um;

[0041] Here, the dry film is pressed on the surface of the substrate by using a dry film pressing machine, and the parameters for pressing the dry film are: temperature 95°C, speed 1.50m / min, pressure 6kg;

[0042] The dry film is sequentially exposed, developed and etched to form a circuit pattern. The circuit pattern is composed of a wire network 4 and two bus bars 5. The two bus bars 5 are located on both sides of the wire network 4. The wire network 4 and the bus bar 5 are electrically connected. , t...

Embodiment 2

[0053] On the basis of Embodiment 1, a method for using a flexible circuit board for defogging vehicle lights is disclosed, and the steps are as follows:

[0054] The first step: use a dry film pressing machine to press the dry film on the surface of the substrate 1;

[0055]Step 2: Expose the dry film, use the exposure machine to radiate ultraviolet light to irradiate the dry film and the negative film pattern, let the dry film undergo polymerization reaction, and the ultraviolet light emitted by the exposure machine irradiates the light-transmitting part of the negative film pattern When the film graphics are transferred to the photosensitive dry film;

[0056] The third step: developing the dry film, using Na at a concentration of 1.0% (w / v) 2 CO 3 The solution removes the photosensitive dry film that has not undergone polymerization, and the photosensitive dry film that undergoes polymerization remains on the substrate 1 to complete the pattern transfer;

[0057] Step 4...

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Abstract

The invention discloses a flexible circuit board for demisting an automobile lamp and a manufacturing process of the flexible circuit board, and belongs to the technical field of automobile parts. The flexible circuit board comprises a substrate; the substrate is composed of a first PET board and a CU; a dry film is pressed at the upper end of the substrate; the dry film is sequentially subjected to exposure, development and etching film stripping to form a circuit pattern; the circuit pattern is composed of a wire network and two buses, the two buses are located on the two sides of the wire network, and the wire network is electrically connected with the buses; a cover film is pressed at the upper end of the dry film through a vacuum pressing machine; the cover film is composed of a UV curing transparent adhesive tape and a second PET plate; the second PET plate is located at the upper end of the UV curing transparent adhesive tape; and the dry film and the second PET plate are connected through the UV curing transparent adhesive tape in a gluing mode. Through cooperation of all accessories, demisting can be well conducted on the front lamp and the rear lamp of an automobile; the product is light and thin, is wide in application range, simple in manufacturing process, low in cost, is easy to introduce to mass production and can greatly save the production cost.

Description

technical field [0001] The invention belongs to the technical field of auto parts, and in particular relates to a flexible circuit board used for defogging a car lamp and a manufacturing process thereof. Background technique [0002] With the continuous increase of automobile functions, the requirements for auto parts continue to increase. During the driving process of the car lights, it is easy to affect the radiated light of the car lights due to rain and fog. The problem that the light is not bright, in addition to the automotive field, can also be used for heating, defrosting and defogging in industrial, consumer electronics and other fields; [0003] There are two main types of existing headlight defogging technologies: [0004] In the first solution, there is no vent structure on the mask in the cold area, and the mask is also coated with anti-fog paint coating and copper heat-conducting layer, etc. However, this defogging structure can only rely on the air circulatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/02H05K1/09H05K3/00H05K3/06
CPCH05K1/0212H05K1/028H05K1/09H05K3/0079H05K3/0082H05K3/061H05K2201/05H05K2201/06H05K2201/09209H05K2203/0548
Inventor 隽培军胡巧琛杨顺桃
Owner 隽美经纬电路有限公司
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