Packaging structure of LED light source

Abstract

The utility model discloses a packaging structure of an LED light source, which belongs to the field of packaging structures and comprises a heat sink, a base is fixedly connected outside the heat sink, pins are fixedly connected to two sides of the base respectively, a solid crystal is fixedly connected in the top surface of the heat sink, an LED chip is fixedly connected to the top surface of the solid crystal, a fluorescent powder layer is fixedly connected to the top surface of the LED chip, and the fluorescent powder layer is fixedly connected to the top surface of the LED chip. An arranged fixing mechanism is used in cooperation with an upper plastic lens, a rotary knob is rotated to drive a screw rod to rotate through a second rotating rod, a connecting plate drives a pressing plate to move upwards along the screw rod and a guide strip through a screw hole and a guide opening, after a clamping plate on the bottom face of the pressing plate is moved out of a clamping opening, a turnover plate is turned over in the reverse direction towards the outer side, and then the plastic lens is fixed. And then the plastic lens is taken down from the top surface of the base, so that the packaging structure of the LED light source is convenient for dismounting and replacing the LED chip, and the LED chip can be sealed and packaged again through the plastic lens after the replacement of the LED chip is completed.

Description

Technical Field

[0001] This utility model relates to the field of packaging structures, and in particular to a packaging structure for an LED light source. Background Technology

[0002] LED light sources, or light-emitting diodes, are solid-state semiconductor devices that directly convert electrical energy into light energy. They emit light based on the electronic energy level structure and carrier recombination phenomenon of semiconductor materials, offering advantages such as small size, long lifespan, high efficiency, energy saving, and environmental friendliness. Furthermore, they produce a rich variety of colors, emitting red, yellow, green, blue, and even achieving full-color displays by mixing different colored LEDs. LED light sources have wide applications in lighting, displays, and communications, and represent an important future direction for light source technology development.

[0003] In existing technologies, during the packaging process of LED light sources, epoxy resin, silicone, and other encapsulation materials are generally used to isolate the LED chip from the external environment to protect the chip and improve its stability. However, after the LED chip is encapsulated, it is not convenient to remove the LED chip from the encapsulation structure for disassembly and reassembly when it is damaged after long-term use. Once the LED chip is damaged, the entire light source needs to be replaced, which makes the packaging structure inconvenient for replacing the LED chip. Utility Model Content

[0004] The main objective of this invention is to provide a packaging structure for an LED light source that can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An LED light source packaging structure includes a heat sink, a base fixedly connected to the outside of the heat sink, and pins fixedly connected to both sides of the base. A die bond is fixedly connected to the top surface of the heat sink, and an LED chip is fixedly connected to the top surface of the die bond. A phosphor layer is fixedly connected to the top surface of the LED chip, and gold wires are fixedly connected between the LED chip and the pins. A plastic lens is fixedly connected to the top surface of the base through a fixing mechanism, and the fixing mechanism includes a flip plate, a screw, a pressure plate, and a clamping plate. The flip plate is movably connected to a concave seat on the outer wall of the base through first rotating rods at both ends of the connecting seat at the bottom of the inner side wall, and the screw is movably connected to the side wall of the flip plate through second rotating rods at both ends. The pressure plate is movably connected to the screw through a connecting plate on the outer side wall, and the clamping plate is fixedly connected to the bottom surface of the pressure plate.

[0007] Preferably, a sealing groove is formed on the top surface of the base.

[0008] Preferably, an inner ring plate is fixedly installed at the bottom of the inner wall of the plastic lens, and a rubber sealing ring is fixedly installed on the bottom surface of the inner ring plate.

[0009] Preferably, symmetrical fixing blocks are fixedly installed on the outer wall of the plastic lens, and the top surface of the fixing blocks is provided with a slot.

[0010] Preferably, a symmetrical concave seat is fixedly installed on the outer wall of the base, and a first rotating hole is opened on both sides of the inner wall of the concave seat. A connecting seat is fixedly installed on the bottom of the inner side wall of the flap, and a first rotating rod is fixedly installed at both ends of the connecting seat. The first rotating rod is movably installed in the first rotating hole.

[0011] Preferably, a vertical opening is provided on the side wall of the flap, and a second rotating hole is provided on the top and bottom surfaces inside the vertical opening. Guide bars are fixedly installed on the left and right side walls of the vertical opening, respectively.

[0012] Preferably, a second rotating rod is fixedly installed at the upper and lower ends of the screw, and the second rotating rod is movably installed in the second rotating hole. A knob is also fixedly installed at the top end of the second rotating rod. A connecting plate is fixedly installed on the outer wall of the pressure plate, and a screw hole is opened on the top surface of the connecting plate and threadedly connected to the screw through the screw hole. Guide openings corresponding to the guide bar are also opened on the left and right side walls of the connecting plate. A clamping plate is fixedly installed on the bottom surface of the pressure plate and is inserted into the clamping slot.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] In this invention, the fixing mechanism, in conjunction with the use of a plastic lens, allows the screw to rotate via the second rotating rod when the knob is turned. This causes the connecting plate to move upward along the screw and guide bar through the screw hole and guide port, moving the pressure plate upward. After the clamping plate on the bottom of the pressure plate is removed from the clamping slot, it flips outward in the opposite direction, allowing the plastic lens to be removed from the top surface of the base. This achieves the purpose of making the LED light source's packaging structure convenient for disassembling and replacing the LED chip. After replacing the LED chip, it can be resealed and packaged using the plastic lens. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the overall structure of the base of this utility model;

[0018] Figure 4This is a schematic diagram of the overall structure of the plastic lens of this utility model;

[0019] Figure 5 This is a structural breakdown diagram of the fixing mechanism of this utility model.

[0020] In the diagram: 1. Heat sink; 2. Base; 3. Pin; 4. Die bonding; 5. LED chip; 6. Phosphor layer; 7. Gold wire; 8. Plastic lens; 9. Fixing mechanism; 10. Sealing groove; 11. Concave seat; 12. First rotating hole; 13. Inner ring plate; 14. Rubber sealing ring; 15. Fixing block; 16. Bayonet; 17. Flip plate; 18. Connecting seat; 19. First rotating rod; 20. Vertical opening; 21. Second rotating hole; 22. Guide bar; 23. Screw; 24. Second rotating rod; 25. Knob; 26. Pressure plate; 27. Connecting plate; 28. Screw hole; 29. ​​Guide port; 30. Clamping plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figure 1 - Figure 5 As shown, an LED light source packaging structure includes a heat sink 1, a base 2 fixedly connected to the outside of the heat sink 1, and pins 3 fixedly connected to both sides of the base 2. A die bond 4 is fixedly connected to the top surface of the heat sink 1, and an LED chip 5 is fixedly connected to the top surface of the die bond 4. A phosphor layer 6 is fixedly connected to the top surface of the LED chip 5, and a gold wire 7 is fixedly connected between the LED chip 5 and the pins 3. A plastic lens 8 is fixedly connected to the top surface of the base 2 through a fixing mechanism 9, and the fixing mechanism 9 includes a flip plate 17, a screw 23, a pressure plate 26, and a clamping plate 30. The flip plate 17 is movably connected to a concave seat 11 on the outer wall of the base 2 through first rotating rods 19 at both ends of the inner side wall bottom connecting seat 18. The screw 23 is movably connected to the inner side wall of the flip plate 17 through second rotating rods 24 at both ends. The pressure plate 26 is movably connected to the screw 23 through a connecting plate 27 on the outer side wall, and the clamping plate 30 is fixedly connected to the bottom surface of the pressure plate 26.

[0023] like Figure 3 As shown, a sealing groove 10 is provided on the top surface of the base 2. The sealing groove 10 on the top surface of the base 2 is used to cooperate with the rubber sealing ring 14 to achieve sealed encapsulation of the LED chip 5 using the plastic lens 8.

[0024] like Figure 4As shown, an inner ring plate 13 is fixedly installed at the bottom of the inner wall of the plastic lens 8, and a rubber sealing ring 14 is fixedly installed on the bottom surface of the inner ring plate 13. After pressing the rubber sealing ring 14 installed on the bottom surface of the ring plate 13 into the sealing groove 10, the LED chip 5 can be sealed and encapsulated using the plastic lens 8.

[0025] like Figure 4 As shown, symmetrical fixing blocks 15 are fixedly installed on the outer wall of the plastic lens 8, and a slot 16 is provided on the top surface of the fixing block 15. The slot 16 on the top surface of the fixing block 15 is used to cooperate with the card plate 30 to limit and fix the plastic lens 8.

[0026] like Figure 3 and Figure 5 As shown, symmetrical concave seats 11 are fixedly installed on the outer wall of the base 2, and first rotating holes 12 are respectively opened on both sides of the inner wall of the concave seat 11. A connecting seat 18 is fixedly installed on the bottom of the inner side wall of the flip plate 17, and first rotating rods 19 are fixedly installed on both ends of the connecting seat 18. The first rotating rods 19 are movably installed in the first rotating holes 12. When the first rotating rods 19 at both ends of the connecting seat 18 rotate in the first rotating holes 12 opened on both sides of the inner wall of the concave seat 11, the flip plate 17 can be flipped.

[0027] like Figure 5 As shown, a vertical opening 20 is provided on the side wall of the flip plate 17. The vertical opening 20 can be used with the connecting plate 27 to realize the up and down movement operation. The top and bottom surfaces of the vertical opening 20 are provided with second rotating holes 21. The second rotating holes 21 are used to realize the rotation operation. Guide bars 22 are fixedly installed on the left and right side walls of the vertical opening 20 respectively. The guide bars 22 are used to guide the connecting plate 27 to move in conjunction with the guide opening 29.

[0028] like Figure 5As shown, a second rotating rod 24 is fixedly installed at the upper and lower ends of the screw 23, and the second rotating rod 24 is movably installed in the second rotating hole 21. A knob 25 is also fixedly installed at the top of the upper second rotating rod 24. A connecting plate 27 is fixedly installed on the outer wall of the pressure plate 26, and a screw hole 28 is opened on the top surface of the connecting plate 27 and threadedly connected to the screw 23 through the screw hole 28. Guide openings 29 corresponding to the guide bar 22 are also opened on the left and right side walls of the connecting plate 27. A clamping plate is fixedly installed on the bottom surface of the pressure plate 26. 30, and the card plate 30 is inserted into the bayonet 16. Rotating the knob 25 drives the second rotating rod 24 to rotate in the second rotating hole 21, so that the second rotating rod 24 drives the screw 23 to rotate, allowing the connecting plate 27 to move upward along the screw 23 and the guide bar 22 through the screw hole 28 and the guide port 29, so that the connecting plate 27 drives the pressure plate 26 to remove the card plate 30 from the bayonet 16, so that the plastic lens 8 used for packaging can be removed from the top surface of the base 2, so as to facilitate the disassembly and replacement of the damaged LED chip 5 inside.

[0029] The specific operating principle of the fixing mechanism 9 in conjunction with the LED light source's packaging structure is as follows:

[0030] When one of the LED chips 5 in the LED light source is damaged and needs to be replaced, rotate the knob 25 located on the top surface of the flip plate 17. The knob 25 will drive the second rotating rod 24 to rotate in the second rotating hole 21. The second rotating rod 24 will drive the screw 23 to rotate in the vertical opening 20. At this time, the connecting plate 27 will move upward in the vertical opening 20 through the screw hole 28 on the top surface and the guide openings 29 on both sides, along the screw 23 and the guide bar 22. The connecting plate 27 will drive the pressure plate 26 to move upward on the inner side wall of the flip plate 17 simultaneously, until the clamping plate 30 installed on the bottom surface of the pressure plate 26 moves out of the clamping slot 16 opened on the top surface of the fixing block 15 installed on the outer wall of the plastic lens 8. Then, flip the flip plate 17 outward. The first rotating rods 19 installed at both ends of the connecting seat 18 at the bottom of the inner side wall of the flip plate 17 will move into the first rotating holes 12 opened on both sides of the inner wall of the concave seat 11 installed on the outer wall of the base 2. By rotating the flap 17, the flip plate 17 can be flipped until it is in a horizontal position. Then, the plastic lens 8 can be removed from the top surface of the base 2, and the damaged LED chip 5 inside can be disassembled and replaced. After the replacement of the LED chip 5 is completed, the plastic lens 8 is installed on the top surface of the base 2, and the rubber sealing ring 14 installed on the bottom surface of the inner ring plate 13 is embedded in the sealing groove 10 opened on the top surface of the base 2. Finally, after flipping the flap 17 to the vertical position, the knob 25 is rotated to press the pressure plate 26 against the top surface of the fixing block 15, and the card plate 30 is inserted into the slot 16. The LED chip 5 can be resealed by the rubber sealing ring 14. It is not necessary to replace the entire LED light source. Only the damaged LED chip 5 needs to be replaced to put it back into use. This achieves the purpose of making the packaging structure of the LED light source easy to disassemble and replace the LED chip 5.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An LED light source packaging structure, comprising a heat sink (1), a base (2) fixedly connected to the outside of the heat sink (1), and pins (3) fixedly connected to both sides of the base (2), a die bond (4) fixedly connected to the top surface of the heat sink (1), and an LED chip (5) fixedly connected to the top surface of the die bond (4), a phosphor layer (6) fixedly connected to the top surface of the LED chip (5), and a gold wire (7) fixedly connected between the LED chip (5) and the pins (3), characterized in that: The top surface of the base (2) is fixedly connected to a plastic lens (8) by a fixing mechanism (9), and the fixing mechanism (9) includes a flip plate (17), a screw (23), a pressure plate (26) and a clamping plate (30). The flip plate (17) is movably connected to the concave seat (11) on the outer wall of the base (2) through the first rotating rods (19) at both ends of the connecting seat (18) at the bottom of the inner side wall. The screw (23) is movably connected to the side wall of the flip plate (17) through the second rotating rods (24) at both ends. The pressure plate (26) is movably connected to the screw (23) through the connecting plate (27) on the outer side wall. The clamping plate (30) is fixedly connected to the bottom surface of the pressure plate (26).

2. The LED light source packaging structure according to claim 1, characterized in that: The top surface of the base (2) is provided with a sealing groove (10).

3. The LED light source packaging structure according to claim 2, characterized in that: An inner ring plate (13) is fixedly installed at the bottom of the inner wall of the plastic lens (8), and a rubber sealing ring (14) is fixedly installed on the bottom surface of the inner ring plate (13).

4. The LED light source packaging structure according to claim 3, characterized in that: Symmetrical fixing blocks (15) are fixedly installed on the outer wall of the plastic lens (8), and the top surface of the fixing blocks (15) is provided with a slot (16).

5. The LED light source packaging structure according to claim 4, characterized in that: A symmetrical concave seat (11) is fixedly installed on the outer wall of the base (2), and a first rotating hole (12) is opened on both sides of the inner wall of the concave seat (11). A connecting seat (18) is fixedly installed at the bottom of the inner wall of the flap (17), and a first rotating rod (19) is fixedly installed at both ends of the connecting seat (18). The first rotating rod (19) is movably installed in the first rotating hole (12).

6. The LED light source packaging structure according to claim 5, characterized in that: The flap (17) has a vertical opening (20) on its side wall, and the top and bottom surfaces of the vertical opening (20) have a second rotating hole (21). Guide strips (22) are fixedly installed on the left and right side walls of the vertical opening (20).

7. The LED light source packaging structure according to claim 6, characterized in that: The upper and lower ends of the screw (23) are respectively fixedly installed with a second rotating rod (24), and the second rotating rod (24) is movably installed in the second rotating hole (21). The top end of the upper second rotating rod (24) is also fixedly installed with a knob (25). The outer side wall of the pressure plate (26) is fixedly installed with a connecting plate (27), and the top surface of the connecting plate (27) is provided with a screw hole (28) and is threadedly connected to the screw (23) through the screw hole (28). The left and right side walls of the connecting plate (27) are respectively provided with guide openings (29) corresponding to the guide bar (22). The bottom surface of the pressure plate (26) is fixedly installed with a clamping plate (30), and the clamping plate (30) is inserted into the clamping slot (16).

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