A high light efficiency white glue flexible LED circuit board

Abstract

The present invention discloses a high-light-efficiency white glue flexible LED circuit board, specifically relates to the field of printed circuit technology, including a first main body, a second main body fixedly connected to one side of the first main body, a top cover film and a bottom cover film fixedly arranged on both sides of the first main body and the second main body, a first copper sheet fixedly connected to the bottom of the top cover film, a second copper sheet fixedly connected to the bottom of the first copper sheet, and a second copper sheet fixedly connected to the top of the bottom cover film, by changing the formula of the colorless and transparent glue, adding a high-reflective material to the existing glue, making it pure white, and improving the reflectivity of the product. When making copper foil, first apply white white glue on yellow PI, the glue thickness is 10-20UM. Then the first copper sheet and the second copper sheet are pasted on the white glue on the front and back to make a double-sided copper foil material. When making a circuit, the etched PI layer will become white due to the coverage of the white glue, which improves the reflectivity of the product, improves the light efficiency by more than 10%, and effectively improves the lighting effect.

Description

Technical Field

[0001] The invention relates to the technical field of printed circuits, and more specifically to a high-light-efficiency white glue flexible LED circuit board. Background Art

[0002] LED circuit board is the abbreviation of printed circuit board. Both LED aluminum substrate and FR-4 fiberglass circuit board belong to PCB. If we want to talk about the difference, we can only compare LED aluminum substrate and FR-4 fiberglass circuit board. LED aluminum substrate is to print circuits on the aluminum plane with better thermal conductivity, and then weld electronic components on it.

[0003] At present, the PI (polyimide) material on the market is generally yellow, and the glue is generally colorless. Combined into copper foil, the structure of copper foil: copper + glue + PI (see the structure diagram), after etching, the exposed PI is yellow. When used as an LED light-emitting product, the middle of the component is yellow PI, and the light efficiency will be lower. There are also white PI on the market, but the cost is high and it is difficult to apply to LED products. Therefore, in order to solve the above problems, a high-light-efficiency white glue flexible LED circuit board is necessary. Summary of the invention

[0004] The main technical problem solved by the present invention is to provide a high-light-efficiency white glue flexible LED circuit board, which can solve the problems raised by the above-mentioned background technology.

[0005] To solve the above technical problems, according to one aspect of the present invention, more specifically, a high-light-efficiency white glue flexible LED circuit board comprises a first main body, a second main body is fixedly connected to one side of the first main body, a top cover film and a bottom cover film are fixedly arranged on both sides of the first main body and the second main body, a first copper sheet is fixedly connected to the bottom of the top cover film, a second copper sheet is fixedly connected to the bottom of the first copper sheet, the second copper sheet is fixedly connected to the top of the bottom cover film, an energizing component is fixedly arranged between the first copper sheet and the second copper sheet, a plurality of lamp beads are connected in parallel on the outside of the energizing component, two first contacts are fixedly arranged on one side of the top cover film, two second contacts are fixedly arranged on the other side of the top cover film, and the first contact and the second contact are both electrically connected to the first copper sheet;

[0006] The inner sides of the top cover film and the bottom cover film are fixed with yellow PI, the inner sides of the two yellow PIs are smeared with white glue and are fixed to one side of the first copper sheet and the second copper sheet respectively by the white glue, the inner sides of the first copper sheet and the second copper sheet are smeared with white glue, and the first copper sheet and the second copper sheet are fixed with yellow PI by the white glue, and the white glue is added with high reflective material and is pure white.

[0007] Furthermore, power-carrying plates are fixedly provided on both sides of the bottom of the first copper sheet, and the two power-carrying plates pass through the yellow PI between the first copper sheet and the second copper sheet and are fixedly connected to the second copper sheet, forming a parallel circuit between the second copper sheet and the first copper sheet and the first contact and the second contact.

[0008] Furthermore, the power-on component includes a power-on circuit fixedly connected to one side of the second copper sheet, the other end of the power-on circuit is fixedly connected to the other side of the second copper sheet, a plurality of connection components are fixedly arranged on the outside of the power-on circuit, and the plurality of lamp beads are connected in parallel on the outside of the power-on circuit through the connection components.

[0009] Furthermore, two protective resistors are connected in parallel on the outside of the power-on circuit, and the internal resistance of the protective resistors is consistent with that of the lamp beads.

[0010] Furthermore, fluorescent glue is fixedly applied to the bottom of the first body and the second body, and the fluorescent glue is evenly wrapped around the outside of the lamp bead, and the fluorescent glue is a waterproof and light-transmitting material.

[0011] Furthermore, a second contact is fixedly arranged between the first body and the second body, the first body and the second body are electrically connected internally through the second contact, a cutting line is fixedly arranged between the first body and the second body in the middle of the second contact, and power-on marks are fixedly arranged on both sides of the cutting line at the bottom of the first body and the second body.

[0012] Furthermore, the top cover film and the bottom cover film are both made of transparent insulating material, and a first sealing plate is fixedly arranged between the top cover film and the bottom cover film, and the first sealing plate seals the top cover film and the bottom cover film.

[0013] The beneficial effects of the high light efficiency white glue flexible LED circuit board of the present invention are:

[0014] By changing the formula of colorless and transparent glue, adding highly reflective materials to the existing glue to make it pure white, the reflectivity of the product is improved. When making copper foil, first apply white glue on the yellow PI, and the thickness of the glue is 10-20UM. Then, the first copper sheet and the second copper sheet are pasted on the white glue on the front and back to make a double-sided copper foil material. When making circuits, the etched yellow PI will turn white due to the coverage of white glue, which improves the reflectivity of the product and increases the light efficiency by more than 10%, effectively improving the lighting effect;

[0015] By providing the first copper sheet, the second copper sheet and the power-on board, when power is turned on, the positive and negative electrodes of the power supply are connected to both sides of the first copper sheet, and the second copper sheet is powered by the power-on board. When multiple circuit boards are connected, the second copper sheet forms a parallel circuit on the power-on board, so that the power-on component controls the lamp beads to emit light. When one second copper sheet is damaged, the other second copper sheets can still work, which effectively improves the stability of multiple circuit boards when in use and greatly improves the practicality of the device.

[0016] By setting a power-on circuit, a connecting component and a protective resistor, when the circuit board is powered on, the second copper sheet supplies power to the power-on circuit, and the power-on circuit supplies power to multiple lamp beads through the connecting component. At the same time, multiple lamp beads form a parallel circuit with the power-on circuit. When a single lamp bead is damaged, it will not affect the operation of other lamp beads. At the same time, the stability of the power-on circuit is increased by the protective resistor. When all the lamp beads are damaged, the power-on circuit will not be short-circuited, which effectively improves the safety during use and further improves the practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0018] Figure 1 This is a schematic diagram of the overall structure of a high-light-efficiency white glue flexible LED circuit board of the present invention;

[0019] Figure 2 This is a schematic diagram of the lamp bead installation structure of a high-light-efficiency white glue flexible LED circuit board of the present invention.

[0020] Figure 3 This is a schematic diagram of the top cover film and bottom cover film structure of a high light efficiency white glue flexible LED circuit board of the present invention;

[0021] Figure 4 for Figure 3 A magnified view of the structure;

[0022] Figure 5 This is a schematic diagram of the main structure of a high-light-efficiency white glue flexible LED circuit board of the present invention;

[0023] Figure 6 This is a schematic diagram of the yellow PI structure of a high-light-efficiency white glue flexible LED circuit board of the present invention;

[0024] Figure 7 This is a schematic diagram of the power-on circuit structure of a high-light-efficiency white glue flexible LED circuit board of the present invention;

[0025] Figure 8 The present invention is a schematic diagram of the back structure of the power-on circuit of a high-light-efficiency white glue flexible LED circuit board.

[0026] In the figure: 1. first main body; 10. lamp bead; 11. first sealing plate; 12. protective resistor; 13. top cover film; 14. bottom cover film; 15. first contact; 16. second contact; 2. second main body; 3. fluorescent glue; 4. cutting line; 40. power-on mark; 5. first copper sheet; 50. second copper sheet; 51. yellow PI; 52. power-on board; 53. white glue; 54. connecting component; 55. power-on circuit. DETAILED DESCRIPTION

[0027] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0028] like Figure 1-8 As shown, according to one aspect of the present invention, a high-light-efficiency white glue flexible LED circuit board is provided, comprising a first main body 1, a second main body 2 is fixedly connected to one side of the first main body 1, a top cover film 13 and a bottom cover film 14 are fixedly arranged on both sides of the first main body 1 and the second main body 2, a first copper sheet 5 is fixedly connected to the bottom of the top cover film 13, a second copper sheet 50 is fixedly connected to the bottom of the first copper sheet 5, the second copper sheet 50 is fixedly connected to the top of the bottom cover film 14, an electrification component is fixedly arranged between the first copper sheet 5 and the second copper sheet 50, a plurality of lamp beads 10 are connected in parallel on the outside of the electrification component, two first contacts 15 are fixedly arranged on one side of the top cover film 13, two second contacts 16 are fixedly arranged on the other side of the top cover film 13, the first contact 15 and the second contact 16 are both electrically connected to the first copper sheet 5, the above arrangement improves the stability and luminous effect of the circuit board during use, and facilitates the installation of the circuit board;

[0029] The top cover film 13 and the bottom cover film 14 are both fixedly provided with yellow PI51 on the inside, and the two yellow PI51 are both smeared with white glue 53 on the inside and fixedly attached to the first copper sheet 5 and the second copper sheet 50 on the side thereof by the white glue 53. The first copper sheet 5 and the second copper sheet 50 are both smeared with white glue 53 on the inside, and the first copper sheet 5 and the second copper sheet 50 are both fixedly attached with yellow PI51 by the white glue 53. Highly reflective materials are added inside the white glue 53 and they are all pure white. By changing the formula of the colorless and transparent glue and adding highly reflective materials to the existing glue, pure white is made to improve the reflectivity of the product. When making copper foil, first apply the white glue 53 on the yellow PI51, and the thickness of the glue is 10-20UM. Then, the first copper sheet 5 and the second copper sheet 50 are pasted on the white glue 53 on the front and back to make a double-sided copper foil material. When making circuits, the etched yellow PI51 will turn white due to the coverage of the white glue 53, which improves the reflectivity of the product and increases the light efficiency by more than 10%, effectively improving the lighting effect.

[0030] In this embodiment, power-on plates 52 are fixedly provided on both sides of the bottom of the first copper sheet 5. The two power-on plates 52 penetrate the yellow PI 51 between the first copper sheet 5 and the second copper sheet 50 and are fixedly connected to the second copper sheet 50. A parallel circuit is formed between the second copper sheet 50 and the first copper sheet 5 and the first contact 15 and the second contact 16. By providing the first copper sheet 5 and the second copper sheet 50 and the power-on plates 52, when power is turned on, the positive and negative poles of the power supply are connected to both sides of the first copper sheet 5, and the second copper sheet 50 is powered by the power-on plates 52. When multiple circuit boards are connected, the second copper sheet 50 forms a parallel circuit on the power-on plates 52, so that the power-on components control the lamp beads 10 to emit light. When one second copper sheet 50 is damaged, the other second copper sheets 50 can still work, which effectively improves the stability of multiple circuit boards when in use and greatly improves the practicability of the device.

[0031] In this embodiment, the power-on component includes a power-on circuit 55 fixedly connected to one side of the inside of the second copper sheet 50, the other end of the power-on circuit 55 is fixedly connected to the other side of the inside of the second copper sheet 50, and a plurality of connecting components 54 are fixedly arranged on the outside of the power-on circuit 55. A plurality of lamp beads 10 are connected in parallel on the outside of the power-on circuit 55 through the connecting components 54. By setting the power-on circuit 55, the connecting components 54 and the protective resistor 12, when the circuit board is powered on, the second copper sheet 50 supplies power to the power-on circuit 55, and the power-on circuit 55 supplies power to the plurality of lamp beads 10 through the connecting components 54. At the same time, the plurality of lamp beads 10 form a parallel circuit with the power-on circuit 55. When a single lamp bead 10 is damaged, it will not affect the operation of other lamp beads 10, thereby effectively improving the safety during use and further improving the practicality.

[0032] In this embodiment, two protective resistors 12 are connected in parallel to the outside of the power circuit 55. The internal resistance of the protective resistor 12 is consistent with the lamp bead 10. At the same time, the protective resistor 12 increases the stability of the power circuit 55. When all the lamp beads 10 are damaged, the power circuit 55 will not be short-circuited.

[0033] In this embodiment, fluorescent glue 3 is fixedly applied to the bottom of the first main body 1 and the second main body 2. The fluorescent glue 3 is evenly wrapped around the outside of the lamp bead 10. The fluorescent glue 3 is a waterproof and light-transmitting material. The luminous efficiency of the lamp bead 10 is further improved by setting the fluorescent glue 3, and the lamp bead 10 is protected at the same time.

[0034] In this embodiment, a second contact 16 is fixedly arranged between the first body 1 and the second body 2, the first body 1 and the second body 2 are electrically connected internally through the second contact 16, a cutting line 4 is fixedly arranged between the first body 1 and the second body 2 in the middle of the second contact 16, and power-on marks 40 are fixedly arranged on both sides of the cutting line 4 at the bottom of the first body 1 and the second body 2. The above arrangement facilitates cutting and improves practicality.

[0035] In this embodiment, the top cover film 13 and the bottom cover film 14 are both made of transparent insulating materials, and a first sealing plate 11 is fixedly arranged between the top cover film 13 and the bottom cover film 14. The first sealing plate 11 seals the top cover film 13 and the bottom cover film 14. By setting the first sealing plate 11, the circuit board is sealed as a whole, thereby improving the waterproof performance of the circuit board while protecting the circuit.

[0036] The working principle of this device is: by changing the formula of colorless and transparent glue, adding highly reflective materials to the existing glue to make it pure white, and improving the reflectivity of the product. When making copper foil, first apply white glue 53 on yellow PI51, and the glue thickness is 10-20UM. Then, the first copper sheet 5 and the second copper sheet 50 are pasted on the white glue 53 on the front and back sides to make a double-sided copper foil material. When making the circuit, the etched yellow PI51 will turn white due to the coverage of the white glue 53, which improves the reflectivity of the product and the light efficiency by more than 10%, effectively improving the lighting effect. At the same time, when power is turned on, the positive and negative poles of the power supply are connected to the two sides of the first copper sheet 5, and the second copper sheet 50 is powered by the power-on board 52. When multiple circuit boards are connected, the second copper sheet 50 forms a parallel circuit on the power-on board 52, so that the power-on component controls the lamp beads 10 to emit light. When one second copper sheet 50 is damaged, the other second copper sheets 50 can still work, and when the circuit board is powered on, the second copper sheet 50 supplies power to the power-on circuit 55, and the power-on circuit 55 supplies power to multiple lamp beads 10 through the connecting component 54. At the same time, multiple lamp beads 10 form a parallel circuit with the power-on circuit 55. When a single lamp bead 10 is damaged, it will not affect the work of other lamp beads 10.

[0037] The electrical components that appear in this article are all electrical components that exist in reality.

[0038] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention also fall within the protection scope of the present invention.

Claims

1. A high light efficiency white glue flexible LED circuit board, comprising a first body (1), characterized in that: The first body (1) is fixedly connected to the second body (2) on one side, and a top cover film (13) and a bottom cover film (14) are fixedly provided on both sides of the first body (1) and the second body (2), a first copper sheet (5) is fixedly connected to the bottom of the top cover film (13), a second copper sheet (50) is fixedly connected to the bottom of the first copper sheet (5), and the second copper sheet (50) is fixedly connected to the top of the bottom cover film (14), an electric component is fixedly provided between the first copper sheet (5) and the second copper sheet (50), and a plurality of lamp beads (10) are connected in parallel on the outside of the electric component, two first contacts (15) are fixedly provided on one side of the top cover film (13), and two second contacts (16) are fixedly provided on the other side of the top cover film (13), and the first contact (15) and the second contact (16) are both electrically connected to the first copper sheet (5); The top cover film (13) and the bottom cover film (14) are both fixedly provided with yellow PI (51) on their inner sides, the inner sides of the two yellow PIs (51) are both smeared with white glue (53) and are respectively fixedly attached to one side of the first copper sheet (5) and the second copper sheet (50) through the white glue (53), the inner sides of the first copper sheet (5) and the second copper sheet (50) are both smeared with white glue (53), the yellow PI (51) is fixedly attached between the first copper sheet (5) and the second copper sheet (50) through the white glue (53), and the interior of the white glue (53) is added with high reflective material and is pure white.

2. A high light efficiency white glue flexible LED circuit board according to claim 1, characterized in that: A power-carrying plate (52) is fixedly arranged on both sides of the bottom of the first copper sheet (5), and the two power-carrying plates (52) penetrate the yellow PI (51) between the first copper sheet (5) and the second copper sheet (50) and are fixedly connected to the second copper sheet (50), so that a parallel circuit is formed between the second copper sheet (50) and the first copper sheet (5) and the first contact (15) and the second contact (16).

3. A high light efficiency white glue flexible LED circuit board according to claim 2, characterized in that: The power-on component comprises a power-on circuit (55) fixedly connected to one side of the interior of the second copper sheet (50); the other end of the power-on circuit (55) is fixedly connected to the other side of the interior of the second copper sheet (50); a plurality of connection components (54) are fixedly arranged on the outside of the power-on circuit (55); and the plurality of lamp beads (10) are connected in parallel on the outside of the power-on circuit (55) via the connection components (54).

4. A high light efficiency white glue flexible LED circuit board according to claim 3, characterized in that: Two protective resistors (12) are connected in parallel outside the power supply circuit (55), and the internal resistance of the protective resistor (12) is consistent with that of the lamp bead (10).

5. A high light efficiency white glue flexible LED circuit board according to claim 4, characterized in that: Fluorescent glue (3) is fixedly applied to the bottom of the first main body (1) and the second main body (2), and the fluorescent glue (3) is evenly wrapped around the outside of the lamp bead (10). The fluorescent glue (3) is a waterproof and light-transmitting material.

6. A high light efficiency white glue flexible LED circuit board according to claim 1, characterized in that: A second contact (16) is fixedly arranged between the first body (1) and the second body (2); the first body (1) and the second body (2) are electrically connected internally via the second contact (16); a cutting line (4) is fixedly arranged in the middle of the second contact (16) between the first body (1) and the second body (2); and power-on marks (40) are fixedly arranged on both sides of the cutting line (4) at the bottom of the first body (1) and the second body (2).

7. The high light efficiency white glue flexible LED circuit board according to claim 1, characterized in that: The top cover film (13) and the bottom cover film (14) are both made of transparent insulating material, and a first sealing plate (11) is fixedly arranged between the top cover film (13) and the bottom cover film (14), and the first sealing plate (11) seals the top cover film (13) and the bottom cover film (14).

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