CN210247182U

CN210247182U - LED light source of two-wire flexible circuit board

Info

Publication number: CN210247182U
Application number: CN201921136560.4U
Authority: CN
Inventors: fenghua Xia; 夏凤华
Original assignee: Heshan Zhongsheng Technology Co ltd
Current assignee: Jiangmen Yamin Electronic Technology Co ltd
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-04-03
Anticipated expiration: 2029-07-17

Abstract

The utility model belongs to the technical field of the LED lamps and lanterns, the LED light source of two lines soft board circuit is disclosed, including the LED lamp, two lines soft board circuit, resistance, plug and power strip, two lines soft board circuit include the table rete or hinder the resistance oil layer, high temperature resistant PET layer, hot melt adhesive layer, first copper layer and second copper layer, the second copper layer is broken into the independent copper layer of multistage, the independent copper layer interval of adjacent section is 0.1 ~ 0.2mm, first copper layer and second copper layer set up side by side through the hot melt adhesive layer tectorial membrane at high temperature resistant PET layer upper surface, the table rete or hinder the resistance oil layer laminating at first copper layer and second copper layer upper surface, the table rete or hinder the resistance oil layer trompil, expose first copper layer and second copper layer upper surface part and form the circuit contact. The utility model discloses a can simplify processing and practice thrift the cost.

Description

LED light source of two-wire flexible circuit board

Technical Field

The utility model belongs to the technical field of the LED lamps and lanterns, especially, relate to the LED light source of two line soft board circuits.

Background

At present, the circuit using the aluminum substrate/glass fiber board/FPC flexible board has the disadvantages of complex process, low production efficiency, high material and labor cost, and great environmental harm due to the fact that the circuit processing needs pickling etching, via hole electroplating and the like. The basic processing procedures of the current aluminum substrate/glass fiber board/FPC soft board circuit and light source are as follows:

pressing (pressing a copper layer on an aluminum/glass fiber substrate through insulating glue) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -.

Wherein the step of development is carried out using Na₂CO₃The unexposed photosensitive circuit oil is dissolved away, and the exposed photosensitive circuit oil is subjected to polymerization reaction and remains on the copper surface, so that the copper below is protected from being dissolved by the etching solution.

Wherein the etching process is ferric chloride FeCl₃Hydrochloric acid is added as an etching solution, and the copper is oxidized and reduced to remove the exposed copper.

Wherein, the film removing in the working procedure is to remove photosensitive line oil for protecting the surface of the copper line by using NaOH.

The acidic and alkaline solutions used in the above procedures are harmful to human body and environment, and the generated hazardous wastes are not easy to be recycled, so that the manufacturing cost is increased.

The LED lamp that adopts at present, as shown in fig. 1, including LED lamp chip 1, fluorescent glue 2, LED lamp area support 3, metal heat sink 4, pin 5 and solid brilliant glue 6, bulky, with high costs, and have the heat dissipation problem always.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide a LED light source of two line soft board circuits can simplify processing and practice thrift the cost.

The embodiment of the utility model provides a realize like this:

the LED light source of the two-wire flexible printed circuit comprises an LED lamp, the two-wire flexible printed circuit, a resistor, a plug and a power panel, wherein the two-wire flexible printed circuit comprises a surface layer film or a solder resist oil layer, a high-temperature resistant PET layer, a hot melt adhesive layer, a first copper layer and a second copper layer, the second copper layer is cut into a plurality of sections of independent copper layers by punching, the distance between the adjacent sections of independent copper layers is 0.1-0.2 mm, the first copper layer and the second copper layer are arranged in parallel and are coated on the upper surface of the high-temperature resistant PET layer through a hot melt adhesive layer, the surface layer film or the solder resist oil layer is attached to the upper surfaces of the first copper layer and the second copper layer, the surface layer film or the solder resist oil layer is perforated, the upper surfaces of the first copper layer and the second copper layer are partially exposed to form a circuit contact, one end of the first copper layer is provided with a power panel negative, the LED lamp is characterized in that the first contact and the second contact are corresponding in position, the other end of the second copper layer is provided with a power panel positive contact, two ends of the same section of independent copper layer of the second copper layer are respectively provided with an LED lamp contact, the plug is electrically connected with the power panel, the power panel is electrically connected with the power panel positive contact and the power panel negative contact of the two-wire flexible printed circuit, two ends of the resistor are connected to the first contact and the second contact, the LED lamp only comprises an LED lamp chip and fluorescent glue, the LED lamp chip is embedded in the fluorescent glue, and the LED lamp is connected to the LED lamp contacts of the adjacent section of independent copper layer of the second copper layer in a bridging manner.

The embodiment of the utility model provides a form two line soft board circuits through mainly adopting the roll extrusion mode for technology environmental protection, with low costs remove LED lamp support and metal heat sink structure, make LED lamp radiating effect better, the performance of light source is more excellent.

Drawings

FIG. 1 is a prior art LED lamp construction;

FIG. 2 is a diagram of the structure of the LED lamp of the present invention;

FIG. 3 is a process diagram of a method of manufacturing a two wire flex circuit according to the present invention;

FIG. 4 is a diagram of a two-wire flexible printed circuit board of the present invention;

fig. 5 is a schematic diagram of a light source structure including a two-wire flexible printed circuit according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following detailed description is given to specific implementations of the present invention with reference to specific embodiments:

the manufacturing method of the two-wire flexible printed circuit board comprises the following steps:

by adopting an FDC forming machine, the copper foil, the hot melt adhesive and the high-temperature film are laminated together, so that the copper layer is laminated on the high-temperature resistant PET layer through the hot melt adhesive layer;

punching the circuit layer by using an automatic punching machine to form a first copper layer and a second copper layer which are arranged in parallel, wherein the second copper layer is punched into a plurality of sections of independent copper layers, and the distance between every two adjacent sections of independent copper layers is 0.1-0.2 mm;

attaching a surface layer film or a solder resist oil layer to the upper surfaces of the first copper layer and the second copper layer;

and (2) carrying out hole opening treatment on the surface film or the solder resist oil layer, and exposing the upper surfaces of a first copper layer and a second copper layer to form a circuit contact, wherein one end of the first copper layer is provided with a power panel negative electrode contact, the other end of the first copper layer is provided with a first resistance contact, one end of the second copper layer is provided with a second resistance contact, the positions of the first contact and the second contact correspond, the other end of the second copper layer is provided with a power panel positive electrode contact, and two ends of the same section of independent copper layer of the second copper layer are respectively provided with an LED lamp contact.

The LED light source comprises an LED lamp, two-line flexible printed circuit boards, a resistor, a plug and a power panel, wherein the two-line flexible printed circuit boards comprise a surface layer film or a solder resist oil layer, a high-temperature resistant PET layer, a hot melt adhesive layer, a first copper layer and a second copper layer, the second copper layer is cut into a plurality of sections of independent copper layers, the distance between every two adjacent sections of independent copper layers is 0.1-0.2 mm, the first copper layer and the second copper layer are arranged on the upper surface of the high-temperature resistant PET layer in parallel through a hot melt adhesive layer coating film, the surface layer film or the solder resist oil layer is attached to the upper surfaces of the first copper layer and the second copper layer, the surface layer film or the solder resist oil layer is provided with an opening, the upper surfaces of the first copper layer and the second copper layer are partially exposed to form a circuit contact, one end of the first copper layer is provided with a power panel negative contact, the other end of the power panel is provided with, the other end of the second copper layer is provided with a power panel positive electrode contact, two ends of the same section of independent copper layer of the second copper layer are respectively provided with an LED lamp contact, the plug is electrically connected with the power panel, the power panel is electrically connected with the power panel positive electrode contact and the power panel negative electrode contact of the two-wire flexible printed circuit, two ends of the resistor are connected to the first contact and the second contact, the LED lamp only comprises an LED lamp chip and fluorescent glue, the LED lamp chip is embedded in the fluorescent glue, and the LED lamp is connected to the LED lamp contact of the adjacent section of independent copper layer of the second copper layer in a cross-over mode.

As shown in fig. 3, the present invention adopts a novel Flexible circuit board (FDC circuit Flexible Die cutting circuit) to replace the conventional aluminum substrate/glass fiber board/FPC Flexible board. The utility model discloses a soft board circuit comprises high temperature resistant insulating film + circuit layer + high temperature resistant insulating film (also can use insulating solder mask oil to replace), and whole light source technology forms as follows:

laminating a copper layer 7, a hot melt adhesive layer 8 and a high temperature resistant PET layer 9, rolling and engraving a circuit, then laminating a surface layer film or printing a solder resist oil layer 10, welding an LED lamp 11 to form a light source, specifically, adopting an FDC (fully drawn copper) laminating machine to laminate a copper foil and a high temperature thin film together, adopting an automatic punching machine to form a semi-finished product of a circuit, and enabling the blank size between adjacent sections in a second copper layer to be 0.1-0.2 mm; the surface film is perforated by a rolling die (the exposed circuit position is used for welding elements such as an LED lamp, a resistor and the like), and solder resist oil can be directly printed in the process; and then laminating the surface film with the opening and the rolled line through a heating roller.

After the above-mentioned method, obtaining the semi-finished product and the finished product shown in fig. 4 and fig. 5, the two-wire flexible printed circuit board comprises a surface layer film or solder resist layer 10, a high temperature resistant PET layer 9, a hot melt adhesive layer 8, a first copper layer 12 and a second copper layer 13, the first copper layer 12 and the second copper layer 13 are arranged in parallel and coated on the upper surface of the high temperature resistant PET layer 9 through the hot melt adhesive layer 8, the surface layer film or solder resist layer 10 is attached to the upper surfaces of the first copper layer 12 and the second copper layer 13, the surface layer film or solder resist layer 10 is provided with an opening, the upper surfaces of the first copper layer 12 and the second copper layer 13 are partially exposed to form a circuit contact, wherein one end of the first copper layer 12 is provided with a power panel negative electrode contact 14, the other end of the first contact 16 of a resistor 18 is provided with the other end of the second copper layer 13 is provided with a second contact 16 of, the other end of the second copper layer 13 is provided with a power panel positive electrode contact 15, two ends of the same section of independent copper layer of the second copper layer 13 are respectively provided with an LED lamp contact 17, the plug is electrically connected with the power panel, the power panel is electrically connected with the power panel positive electrode contact 15 and the power panel negative electrode contact 14 of the two-wire flexible printed circuit board, two ends of the resistor 18 are connected to the first contact and the second contact, the LED lamp 11 only comprises an LED lamp chip 1 and fluorescent glue 2, the LED lamp chip 1 is embedded in the fluorescent glue 2, and the LED lamp 11 is connected to the LED lamp contact 17 of the adjacent section of independent copper layer of the second copper layer 13 in a bridging manner to form an LED light source.

Fig. 2 is the utility model discloses LED's block diagram, LED lamp only comprise LED lamp chip 1 and fluorescent glue 2, and LED lamp chip gomphosis is in the fluorescent glue.

The utility model discloses a LED lamp removes LED lamp support, and the volume is less, and the cost is lower, and heat dispersion is better, because of the LED lamp is littleer, so the dimensional requirement to the circuit clearance when the welding is littleer, the utility model discloses a technology environmental protection, with low costs, and LED lamp radiating effect is better, and the performance is more excellent.

In the embodiment of the utility model, the chemical formula of the polyethylene glycol terephthalate is-OCH 2-CH20COC6H4 CO-English name: polyethylene terephthalate, abbreviated as PET.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. LED light source of two line soft board circuits, its characterized in that: the LED lamp comprises an LED lamp, two-line flexible printed circuit board circuits, a resistor, a plug and a power panel, wherein the two-line flexible printed circuit board circuits comprise a surface layer film or a solder resist oil layer, a high-temperature resistant PET layer, a hot melt adhesive layer, a first copper layer and a second copper layer, the second copper layer is cut into a plurality of sections of independent copper layers, the distance between every two adjacent sections of independent copper layers is 0.1-0.2 mm, the first copper layer and the second copper layer are arranged on the upper surface of the high-temperature resistant PET layer in parallel through a hot melt adhesive layer coating film, the surface layer film or the solder resist oil layer is attached to the upper surfaces of the first copper layer and the second copper layer, the surface layer film or the solder resist oil layer is provided with a hole, the upper surfaces of the first copper layer and the second copper layer are partially exposed to form a circuit contact, one end of the first copper layer is provided with a power panel negative electrode contact, the other end of the, the other end of the second copper layer is provided with a power panel positive electrode contact, two ends of the same section of independent copper layer of the second copper layer are respectively provided with an LED lamp contact, the plug is electrically connected with the power panel, the power panel is electrically connected with the power panel positive electrode contact and the power panel negative electrode contact of the two-wire flexible printed circuit, two ends of the resistor are connected to the first contact and the second contact, the LED lamp only comprises an LED lamp chip and fluorescent glue, the LED lamp chip is embedded in the fluorescent glue, and the LED lamp is connected to the LED lamp contact of the adjacent section of independent copper layer of the second copper layer in a cross-over mode.