CN210247185U

CN210247185U - LED light source of two-wire flexible printed circuit

Info

Publication number: CN210247185U
Application number: CN201921136583.5U
Authority: CN
Inventors: Yanchun Zhou; 周艳春
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, a LED light source of two line soft board circuits is disclosed, including LED lamp, two line soft board circuits, resistance, plug and power strip, the LED lamp only comprises LED lamp chip and fluorescent glue, and LED lamp chip gomphosis is in the fluorescent glue. The utility model discloses a can simplify processing and practice thrift the cost.

Description

LED light source of two-wire flexible printed circuit

Technical Field

The utility model belongs to the technical field of the LED lamps and lanterns, especially, relate to a 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:

an LED light source of two-line flexible printed circuit comprises an LED lamp, two-line flexible printed circuit, a resistor, a plug and a power panel, wherein the plug is electrically connected with the power panel, the power panel is electrically connected with the two-line flexible printed circuit, the two-line flexible printed circuit comprises a surface film or a solder resistance oil layer, a high-temperature resistant PET layer, a hot melt adhesive layer, a first copper layer and a second copper layer, 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 the hot melt adhesive layer, the surface film or the solder resistance oil layer is attached to the upper surfaces of the first copper layer and the second copper layer, the surface film or the solder resistance oil layer is provided with an opening, the upper surface parts of the first copper layer and the second copper layer are exposed 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, 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 anode contact, the middle part of the second copper layer is composed of multiple copper layers which are mutually separated, vertical and horizontal isolation belts are arranged between adjacent copper layers, the upper transverse section of the odd copper layer is provided with an LED lamp contact and the lower transverse section of the even copper layer is provided with an LED lamp contact, or the lower transverse section of the odd copper layer is provided with an LED lamp contact and the upper transverse section of the even copper layer is provided with an LED lamp contact, the distance between the upper transverse section and the lower transverse section of the adjacent copper layer is 0.1-0.2 mm, the LED lamp is welded between the upper transverse section and the lower transverse section of the adjacent copper layer, two ends of the resistor are connected to the first contact and the second contact, the LED lamp is only composed of an LED lamp chip and fluorescent glue, and the LED lamp chip is embedded in the fluorescent glue.

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:

a method of manufacturing a two wire flex circuit comprising:

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

rolling the copper layer by using an FDC forming machine through a rolling die to form a first copper layer and a second copper layer which are arranged in parallel, wherein the second copper layer is composed of a plurality of copper layers which are mutually separated, and a vertical, transverse and vertical isolation zone is formed between every two adjacent copper layers;

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, exposing the upper surface parts of a first copper layer and a second copper layer to form circuit contacts, 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 first contact corresponds to the second contact in position, the other end of the second copper layer is provided with a power panel positive electrode contact, the upper transverse section of the odd-number section copper layer is provided with an LED lamp contact and the lower transverse section of the even-number section copper layer is provided with an LED lamp contact, or the lower transverse section of the odd-number section copper layer is provided with an LED lamp contact and the upper transverse section of the even-number section copper layer is provided with an LED lamp contact, and the distance between the.

An LED light source comprises an LED lamp, two line soft board circuits obtained according to the method, a resistor, a plug and a power panel, wherein the plug is electrically connected with the power panel, the power panel is electrically connected with the two line soft board circuits, two ends of the resistor are connected to a first contact and a 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.

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, laminating a copper foil and a high temperature thin film together by adopting an FDC laminating machine, forming a semi-finished product of the circuit by adopting an FDC forming machine through a rolling die, and enabling the gap of the copper foil to be 0.1-0.2 mm through the rolled circuit layer (light source area), namely, the blank size between the upper copper and the lower copper is 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, the middle part of the second copper layer 13 is composed of multiple copper layers which are mutually separated, vertical and horizontal isolation belts are formed between adjacent copper layers, an upper transverse section of an odd copper layer is provided with an LED lamp contact 17, a lower transverse section of an even copper layer is provided with an LED lamp contact 17, or an upper transverse section of an odd copper layer is provided with an LED lamp contact 17, an upper transverse section of an even copper layer is provided with an LED lamp contact 17, the distance between the upper transverse section and the lower transverse section of the adjacent copper layer is 0.1-0.2 mm, and the LED lamp 11 is welded between the upper transverse section and the lower transverse section of the adjacent copper layer.

The plug is connected with the power panel, and the power panel is connected with the power panel negative contact 14 and the power panel positive contact 15 of the two wire flexible board circuits to form the 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-CH2OCOC6H4 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. The utility model provides a LED light source of two line soft board circuits which characterized in that: the LED lamp comprises an LED lamp, two line soft board circuits, a resistor, a plug and a power board, wherein the plug is electrically connected with the power board, the power board is electrically connected with the two line soft board circuits, the two line soft board circuits comprise a surface layer film or a solder resisting oil layer, a high temperature resistant PET layer, a hot melt adhesive layer, a first copper layer and a second copper layer, 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 resisting 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 resisting 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 board negative electrode contact, the other end of the first contact of the resistor, one end of the second copper layer, the other end of the second copper layer is provided with a power panel anode contact, the middle part of the second copper layer is composed of multiple copper layers which are mutually separated, vertical and horizontal isolation belts are arranged between adjacent copper layers, an upper transverse section of an odd copper layer is provided with an LED lamp contact and a lower transverse section of an even copper layer is provided with an LED lamp contact, or an upper transverse section of an odd copper layer is provided with an LED lamp contact and an upper transverse section of an even copper layer is provided with an LED lamp contact, the distance between the upper transverse section and the lower transverse section of the adjacent copper layer is 0.1-0.2 mm, the LED lamp is welded between the upper transverse section and the lower transverse section of the adjacent copper layer, two ends of a resistor are connected to the first contact and the second contact, the LED lamp is only composed of an LED lamp chip and fluorescent glue, and the LED lamp chip is embedded.