CN104882526A - Integrated LED packaging light source fluorescent tube - Google Patents

Abstract

Integrated LED packaged light source fluorescent tube, including LED template, driver module (4), lamp cap holder, lamp cap and lampshade, LED module includes LED substrate and PCB board, LED substrate includes solid crystal platform and buckle platform, PCB board is installed on On the fastening platform, the fixed piece is fastened on the slot A and the slot B at the same time; the LED bare chip is connected to the corresponding gold wire bonding area through the bonding gold wire, and the LED bare chip and the gold wire are bonded The area is covered with a fluorescent glue layer, and the lower base frame is provided with a card slot, and the drive module is stuck in the card slot; there is a protrusion at the bottom of the lower base frame, and the LED module is installed at the bottom of the lower base frame, and the protrusion is buckled in the coordination hole A and in the coordination hole B; the screw passes through the round hole and the screw hole to fasten the lamp cap and the fixing column; the top surface of the upper arc frame and the two sides of the lower base frame are glued to the inner wall of the lampshade. The lamp head is connected to the driving module, and the driving module is connected to the PCB board. The integrated package is realized, and the compact structure is improved, the installation and disassembly are convenient, the material cost is reduced, and the service life of the fluorescent lamp is prolonged.

Description

Integrated LED package light source fluorescent tube

technical field

The invention belongs to LED fluorescent lamps, and in particular relates to the fluorescent tube structure of an integrated LED packaged light source.

Background technique

At this stage, the LED light source package and the source of the LED lamp tube are as follows: the LED chip is glued to the surface of the metal or other substrate with the cup-shaped electrode, and then the LED chip electrode is connected to the substrate electrode with a very thin metal wire. The refractive index colloid fills the entire substrate to play a protective role. On this basis, a LED element that can emit light is obtained, and then a single LED element is fixed on the PCB board by reflow soldering or other soldering methods in series and parallel. Then use the switching power supply or the resistance-capacitance step-down method to provide normal and stable working conditions, put it into the tubular shell, fix the G13 lamp caps at both ends, and then get the LED lamp; at the current stage of packaging and LED lamp application technology, when the light intensity is concentrated Or small-angle irradiation range, it is necessary to install a reflector on the lamp frame outside the lamp tube to control the direction of light irradiation; although this method can also achieve light irradiation at small angles to focus the light irradiation range, but also a lot of loss The brightness of the LED is increased, and the cost of the lamp is also increased; and the current technology has a large investment in equipment and cumbersome processing procedures, which have caused an important reason for the high cost. At the same time, the packaged LED components are surface-attached on the PCB substrate through the re-welding process. This process increases the thermal resistance between the LED substrate and the PCB board, greatly reducing the normal service life of the LED. Therefore, it is necessary to develop a novel fluorescent lamp structure that saves process costs, reduces the thermal resistance of the LED fluorescent lamp, prolongs the service life of the LED fluorescent lamp, and can control the angle of light irradiation.

On the other hand, the structure of the existing LED fluorescent lamp is not compact enough, and screws are often used to fix the internal components. Although it plays a role in stabilizing the structure, the cost increases, and the assembly is cumbersome and inconvenient to disassemble. Therefore, it is necessary to reduce the use of screws, reduce the production cost, improve the compactness and rationality of the internal structure of the lamp tube, and realize convenient assembly and disassembly.

Contents of the invention

The present invention provides an integrated LED packaged light source fluorescent tube to solve the above-mentioned deficiencies in the prior art, realize process cost saving, reduce the thermal resistance of LED fluorescent lamps, prolong the service life of LED fluorescent lamps, and control the light irradiation angle. The drive module, the LED template and the lamp holder fixing frame can be snapped together or fastened together by using screws, and can be easily fixed with the lampshade and conveniently connected with the lamp holder.

In order to realize the purpose of the present invention, it is proposed to adopt the following technologies:

An integrated LED packaged light source fluorescent tube, including an LED template, a drive module (4), a lamp holder fixing frame (3), a lamp holder (6) and a lampshade (5), characterized in that the LED module includes an LED substrate (1) and a PCB board (2), the LED substrate (1) includes a solid crystal platform (101) and a fastening platform (102), and the table top of the solid crystal platform (101) is higher than that of the fastening platform (102), wherein: the fastening platform (102 ) along the length direction is evenly provided with the card slot A (103), the PCB board (2) is also uniformly provided with the same interval of the card slot B (201) along the length direction, the card slot A (103) and the card slot B (201) matching, the PCB board (2) is installed on the fastening platform (102), and is fixed on the snap slot A (103) and the snap slot B (201) by the fixed piece (104) at the same time; A crystal-bonding cup (106) is evenly arranged on the crystal platform (101), an LED bare chip (105) is arranged in the crystal-bonding cup (106), and a gold wire bonding area (202) is evenly arranged on the PCB board (2), The bare LED chip (105) is connected to the corresponding gold wire bonding area (202) by bonding gold wires, and the LED bare chip (105) and the gold wire bonding area (202) are covered with a fluorescent adhesive layer, and the fluorescent adhesive layer is also Covering the bonding gold wire; the two ends of the solid crystal platform (101) are provided with coordination holes A (107), the two ends of the fastening platform (102) are provided with coordination holes B (108), and the PCB board (2) Coordination holes C (203) are provided at the two ends of each, and coordination holes B (108) and coordination holes C (203) match. The lamp holder fixing frame (3) is composed of a vertical support (301), an upper arc frame (302) and a lower base frame (303) arranged on the vertical support (301); the lower base frame (303) is provided with a card slot (304), the drive module (4) is stuck in the card slot (304); the bottom of the lower base frame (303) is provided with a protrusion (308), the LED module is installed on the bottom of the lower base frame (303), and the protrusion (308) buckles In the coordination hole A (107) and the coordination hole B (108); the back of the vertical support (301) is provided with a fixing column (307), and there is a screw hole (309) on the fixing column (307), and the lamp holder (6) There is a round hole (601) matching the screw hole (309), and the screw passes through the round hole (601) and the screw hole (309) to fasten the lamp holder (6) and the fixing column (307); the upper arc frame (302) The top surface and the lower base frame (303) both sides are glued to the lampshade (5) inner wall. The lamp holder (6) is connected to the driving module (4), and the driving module (4) is connected to the PCB board (2).

Further, after the PCB board (2) is installed on the fastening platform (102), the upper surface of the PCB board (2) is slightly lower than the surface of the die-bonding platform (101).

Further, the locking groove A (103) and the locking groove B (201) are saw-toothed, and the fixing piece (104) is saw-toothed.

Further, the angle between the wall of the crystal-bonding cup (106) and the bottom of the cup is 90° to 180°.

Further, there is a supporting platform (305) at the position of the card slot (304), a buckle (306) is arranged on the supporting platform (305), and a locking hole (401) is arranged on the base plate of the driving module (4), and the buckle (306) is fastened in the card hole (401).

Further, the bottom surface of the lower base frame (303) is plane, and the protrusion (308) is in the shape of a truncated cone.

Further, the upper arc frame (302) is arc-shaped, and the two sides of the lower base frame (303) are also arc-shaped.

Further, a light reflector (7) is also fixed on the LED template. The reflector (7) includes a bottom surface and two reflective surfaces, and the bottom surface is provided with through holes (701) at equal intervals, and the size of the through holes (701) matches the size of the crystal bonding cup (106). The angle between the bottom surface of the reflector (7) and the reflective surface is 0-180 °, and the maximum distance between the two reflective surfaces of the reflector (7) is equal to the maximum size of the inner diameter of the lampshade (5), which is conducive to fixing the LED template.

The beneficial effects of the present invention are:

1. The LED bare chip is directly set on the LED substrate, replacing the traditional assembly method of "chip + bracket + heat dissipation substrate", reducing the thermal resistance from the LED bare chip to the heat dissipation plate, thereby reducing the heat of the entire LED fluorescent lamp The heat dissipation performance is improved; and the fixing of the PCB board and the LED substrate is realized through the fixing sheet, the slot A and the slot B, and the surface of the PCB board is slightly lower than the surface of the die-bonding platform (101), which can reduce the PCB The board absorbs the light emitted by the bare LED chip; the gold wire bonding area is uniformly arranged on the PCB, and the LED bare chip is connected to the corresponding gold wire bonding area through the bonding gold wire, and the LED bare chip and the gold wire bonding area are covered There is a fluorescent adhesive layer, and the fluorescent adhesive layer also covers the bonding gold wire, realizing an integrated package;

2. The angle between the cup wall and the cup bottom of the solid crystal cup is 90~180°, which can reflect more light from the side of the LED bare chip, improve the light output efficiency of the entire LED module, and then improve the light output efficiency of the LED fluorescent lamp;

3. The card slot A, card slot B and the fixed piece are all serrated to enhance the stability of the buckle;

4. Innovative design of the lamp holder fixing frame, fixing the drive module through the card slot, and installing the LED module through the design protrusion, so that the driver module, the LED template and the lamp holder fixing frame are snapped or snapped into one body without screws, which reduces the cost of materials, and Easy to assemble and disassemble; the lamp holder can be fixed with the lampshade by bonding at the same time, the upper arc frame is designed as an arc shape, and the two sides of the lower base frame are also designed as an arc shape, which can improve the matching between the lamp holder and the lampshade when fixing In addition, the lamp cap fixing frame can also be conveniently fixed with the lamp cap; the integration of the internal structure can be realized through the lamp cap fixing frame, and only screws are used when fixing the lamp cap, which reduces the production cost and improves the compactness and rationality of the internal structure of the lamp tube. High performance, easy to assemble and disassemble;

5. Equipped with a reflector, which can focus the light on the main irradiated area and improve the brightness of the irradiated surface.

Description of drawings

Fig. 1 shows a schematic diagram of an overall exploded structure of the present invention.

Fig. 2 shows a schematic diagram of an exploded structure of the LED module of the present invention.

Fig. 3 shows a partial view of the LED die-bonding area of the present invention.

Fig. 4 shows a schematic diagram of the assembly structure of the LED module of the present invention.

Fig. 5 shows a first schematic diagram of the structure of the lamp cap fixing frame of the present invention.

Fig. 6 shows the second schematic diagram of the structure of the lamp cap fixing frame of the present invention.

Fig. 7 shows the structure schematic diagram III of the lamp cap fixing frame of the present invention.

Fig. 8 shows a schematic diagram of the assembly of the lamp holder fixing frame and the driving module of the present invention.

Fig. 9 shows a schematic diagram of the assembly of the lamp cap fixing frame and the lamp cap of the present invention.

Fig. 10 shows a schematic diagram of the assembly of the lamp cap fixing frame and the lampshade of the present invention.

FIG. 11 shows the first assembly schematic diagram of the lamp holder fixing frame and the LED module of the present invention.

Fig. 12 shows the second schematic diagram of the assembly of the lamp holder fixing frame and the LED module of the present invention.

Figure 13 shows an end view of the reflector of the present invention.

Detailed ways

As shown in Figures 1 to 13, the integrated LED packaged light source fluorescent tube includes an LED template, a driver module (4), a lamp holder fixing frame (3), a lamp holder (6) and a lampshade (5), and the LED module includes an LED substrate (1 ) and PCB board (2), the LED substrate (1) includes a solid crystal platform (101) and a fastening platform (102), and the table top of the solid crystal platform (101) is higher than the table top of the fastening platform (102), wherein: the buckle The closing platform (102) is evenly provided with the slot A (103) along the length direction, and the PCB board (2) is also uniformly provided with the slot B (201) at the same interval along the length direction, and the slot A (103) and The card slot B (201) is matched, the PCB board (2) is installed on the fastening platform (102), and is locked on the card slot A (103) and the card slot B (201) at the same time through the fixing piece (104) and fixed; the crystal-bonding platform (101) is evenly provided with a crystal-bonding cup (106), the LED bare chip (105) is arranged in the crystal-bonding cup (106), and the PCB board (2) is uniformly provided with a gold wire bonding area (202), the LED bare chip (105) is connected to the corresponding gold wire bonding area (202) by bonding gold wires, and the LED bare chip (105) and the gold wire bonding area (202) are covered with a fluorescent adhesive layer, and the fluorescent The adhesive layer also covers the bonding gold wire; the two ends of the solid crystal platform (101) are provided with coordination holes A (107), and the two ends of the fastening platform (102) are provided with coordination holes B (108). Both ends of the plate (2) are provided with coordination holes C (203), and the coordination holes B (108) and the coordination holes C (203) are matched. The lamp holder fixing frame (3) is composed of a vertical support (301), an upper arc frame (302) and a lower base frame (303) arranged on the vertical support (301); the lower base frame (303) is provided with a card slot (304), the drive module (4) is stuck in the card slot (304); the bottom of the lower base frame (303) is provided with a protrusion (308), the LED module is installed on the bottom of the lower base frame (303), and the protrusion (308) buckles In the coordination hole A (107) and the coordination hole B (108); the back of the vertical support (301) is provided with a fixing column (307), and there is a screw hole (309) on the fixing column (307), and the lamp holder (6) There is a round hole (601) matching the screw hole (309), and the screw passes through the round hole (601) and the screw hole (309) to fasten the lamp holder (6) and the fixing column (307); the upper arc frame (302) The top surface and the lower base frame (303) both sides are glued to the lampshade (5) inner wall. The lamp holder (6) is connected to the driving module (4), and the driving module (4) is connected to the PCB board (2).

As a preferred implementation, after the PCB board (2) is installed on the fastening platform (102), the upper surface of the PCB board (2) is on the same plane as the table top of the die-bonding platform (101).

As a preferred implementation, the locking groove A (103) and the locking groove B (201) are saw-toothed, and the fixing piece (104) is saw-toothed.

As a preferred implementation, the angle between the wall of the crystal bonding cup (106) and the bottom of the cup is 90° to 180°.

As a preferred implementation, there is a support platform (305) at the position of the card slot (304), a buckle (306) is provided on the support platform (305), and a card hole (401) is provided on the base plate of the drive module (4), The clasp (306) is fastened in the clasp hole (401).

As a preferred implementation, the bottom surface of the lower base frame (303) is flat, and the protrusion (308) is in the shape of a truncated cone.

As a preferred implementation, the upper arc frame (302) is arc-shaped, and the two sides of the lower base frame (303) are also arc-shaped, which is convenient for bonding with the inner wall of the lampshade (5).

As a preferred implementation, a light reflector (7) is also fixed on the LED template. The reflector (7) includes a bottom surface and two reflective surfaces, and the bottom surface is provided with through holes (701) at equal intervals, and the size of the through holes (701) matches the size of the crystal bonding cup (106). The angle between the bottom surface of the reflector (7) and the reflective surface is 0-180 °, and the maximum size between the two reflective surfaces of the reflector (7) is equal to the maximum size of the inner diameter of the lampshade (5), which is conducive to fixing the LED template.

The LED bare chip (105) is directly arranged on the LED substrate (1), replacing the traditional packaging method of "chip + bracket + heat dissipation substrate", reducing the thermal resistance from the LED bare chip (105) to the LED substrate (1) , thereby reducing the thermal resistance of the entire LED fluorescent lamp and improving the heat dissipation performance; and through the fixing piece (104), the locking groove A (103), and the locking groove B (201), the PCB board (2) and the LED substrate ( 1) is fixed, and after the PCB board (2) is installed on the fastening platform (102), the surface of the PCB board (2) is slightly lower than the surface of the die-bonding platform (101), which can reduce the impact of the PCB board (2) on the LED Absorption of light emitted by the bare chip (105); a gold wire bonding area (202) is uniformly arranged on the PCB board (2), and the LED bare chip (105) is connected to the corresponding gold wire bonding area (202) by bonding the gold wire , the LED bare chip (105) and the gold wire bonding area (202) are covered with a fluorescent adhesive layer, and the fluorescent adhesive layer also covers the bonding gold wire; an integrated packaging light source is realized.

The drive module (4) is fixed through the card slot (304), and the LED module is installed by designing the protrusion (308). The drive module (4), the LED template and the lamp holder fixing frame (3) are assembled into one body without screws, reducing the The material cost is low, and it is easy to assemble and disassemble; the lamp cap fixing frame (3) can be fixed with the lampshade (5) by bonding at the same time, the upper arc frame (302) is designed as a circular arc, and the two sides of the lower base frame (303) are also designed It is arc-shaped, which can improve the compatibility between the lamp holder (3) and the lampshade (5) when it is fixed; in addition, the lamp holder (3) can also be conveniently fixed with the lamp holder (6); through the lamp holder (3) can be The integration of the internal structure is realized, and only screws are used when fixing the lamp holder (6), which reduces the production cost, improves the compactness and rationality of the internal structure of the lamp tube, and realizes convenient assembly and disassembly.

Claims (10)

1. integral LED packaged light source fluorescent tube, comprises LED template, driver module (4), bulb holder fixed rack (3), lamp holder (6) and lampshade (5), it is characterized in that,

LED module comprises LED-baseplate (1) and pcb board (2), LED-baseplate (1) comprises die bond platform (101) and fastens platform (102), the table top of die bond platform (101) higher than the table top fastening platform (102), wherein:

Fasten platform (102) and be evenly provided with screens groove A (103) along its length, pcb board (2) is also evenly provided with the screens groove B (201) of same intervals along its length, screens groove A (103) mates with screens groove B (201), pcb board (2) is arranged on and fastens on platform (102), is buckled in screens groove A (103) and screens groove B (201) simultaneously above fixes by stator (104);

Die bond platform (101) is evenly provided with die bond cup (106), LED bare chip (105) is arranged in die bond cup (106), pcb board (2) is evenly provided with gold thread bonding region (202), LED bare chip (105) is connected to corresponding gold thread bonding region (202) by bonding gold thread, LED bare chip (105) and gold thread bonding region (202) are coated with fluorescent adhesive layer, and fluorescent adhesive layer also covers bonding gold thread simultaneously;

The two ends of die bond platform (101) is provided with coordination hole A (107), the two ends fastening platform (102) is provided with coordination hole B (108), the two ends of pcb board (2) is provided with coordination hole C (203), coordination hole B (108) and coordination hole C (203) coupling;

Bulb holder fixed rack (3) is made up of vertical rack (301) and the upper arc frame (302) be arranged on vertical rack (301) and lower pedestal (303);

Lower pedestal (303) is provided with draw-in groove (304), and driver module (4) is stuck in draw-in groove (304);

Lower pedestal (303) bottom is provided with projection (308), and LED module is arranged on lower pedestal (303) bottom, and protruding (308) are buckled in coordination hole A (107) and coordination hole B (108);

Vertical rack (301) back side is provided with fixed leg (307), fixed leg (307) there is screw (309), lamp holder (6) has the circular hole (601) mated with screw (309), screw through circular hole (601) and screw (309) by lamp holder (6) and fixed leg (307) fastening;

End face and lower pedestal (303) two sides of upper arc frame (302) stick at lampshade (5) inwall;

Lamp holder (6) connects driver module (4), driver module (4) connecting PCB board (2).

2. integral LED packaged light source fluorescent tube according to claim 1, it is characterized in that, described pcb board (2) be arranged on fasten platform (102) upper after, the surface of pcb board (2) is lower than the surface of die bond platform (101).

3. integral LED packaged light source fluorescent tube according to claim 1, is characterized in that, described screens groove A (103) and screens groove B (201) are zigzag, and stator (104) is zigzag.

4. integral LED packaged light source fluorescent tube according to claim 1, is characterized in that, at the bottom of the wall of cup of described die bond cup (106) and cup, angle is 90 ~ 180 °.

5. integral LED packaged light source fluorescent tube according to claim 1, it is characterized in that, support platform (305) is had in the position of described draw-in groove (304), support platform (305) there is buckle (306), the substrate of driver module (4) is provided with hole clipping (401), and buckle (306) is fastened in hole clipping (401).

6. Novel LED fluorescent lamp according to claim 1, is characterized in that, described lower pedestal (303) lower surface is plane, and described projection (308) is truncated cone.

7. Novel LED fluorescent lamp according to claim 1, is characterized in that, described upper arc frame (302) is circular arc, and the two sides of lower pedestal (303) are also circular arc.

8. according to the integral LED packaged light source fluorescent tube in claim 1 ~ 7 described in any one, it is characterized in that, described LED template is also fixed with reflector (7).

9. integral LED packaged light source fluorescent tube according to claim 8, it is characterized in that, described reflector (7) comprises a bottom surface and two reflective surfaces, bottom surface is provided with equally spaced through hole (701), through hole (701) size is mated with die bond cup (106) size, and the ultimate range between reflector (7) two reflective surface equals the full-size of lampshade (5) internal diameter.

10. integral LED packaged light source fluorescent tube according to claim 9, is characterized in that, the angle between the bottom surface of described reflector (7) and reflective surface is 0-180 °.