High-integration COB integrated light source

Abstract

The application relates to a high-integration COB integrated light source in the technical field of LED light sources, which comprises a base, a substrate connected to the base, LED chips mounted on the substrate, a plurality of semiconductor chips included in the LED chips, a plurality of light reflection cups fixed on the substrate, the light reflection cups corresponding to the semiconductor chips one by one, a fluorescent powder layer fixed on the substrate, the light reflection cups being located in the fluorescent powder layer, a protective cover mounted on the substrate, and the fluorescent powder layer and the substrate being located in the protective cover. The application has the effect of reducing the specific volume of the lamp.

Description

Technical Field

[0001] This application relates to the technical field of LED light sources, and in particular to a highly integrated COB integrated light source. Background Technology

[0002] LED light sources are light-emitting diodes. These light sources have advantages such as small size, long lifespan, and high efficiency. They can be used continuously for up to 100,000 hours, and LED light sources will become the mainstream in the lighting field in the future.

[0003] Existing light source modules consist of LED chips fixed on a substrate, with a circular lens or reflector surrounding the LED light source. For example, Chinese utility model patent CN209374485U discloses a high-efficiency LED packaged light source with a flip chip, including a base, a substrate fixedly mounted on the upper surface of the base, an LED chip mounted on the substrate, phosphor fixedly mounted on the outside of the LED chip, a protective cover fixedly mounted on the upper surface of the substrate outside the LED chip, the inside of the protective cover being filled with silicone, and a reflector fixedly mounted on the upper surface of the substrate, covering the protective cover. This reflector is relatively large, resulting in a large lamp size. Summary of the Invention

[0004] To reduce the size of the luminaire, this application provides a highly integrated COB integrated light source.

[0005] This application provides a highly integrated COB (Chip-on-Board) integrated light source. The technical solution adopted is as follows:

[0006] A highly integrated COB (Chip-on-Board) integrated light source includes a base, a substrate connected to the base, an LED chip mounted on the substrate, the LED chip including multiple semiconductor chips, multiple reflectors fixed on the substrate, each reflector corresponding to one of the semiconductor chips, a phosphor layer fixed on the substrate, the reflectors located inside the phosphor layer, and a protective cover mounted on the substrate, the phosphor layer and the substrate located inside the protective cover.

[0007] By adopting the above technical solution, the reflector cup is placed inside the phosphor layer, with one reflector cup corresponding to one semiconductor chip. Compared with placing the reflector cup outside the LED chip, the volume of the light source module is reduced, and the overall volume of the lamp is reduced. The base is connected to the base, and a protective cover is installed on the base. The protective cover protects the base and the phosphor layer.

[0008] Optionally, the protective cover includes a sleeve and an end cap. One end of the sleeve contacts the base. A mounting ring is fixed on the base. The outer wall of the mounting ring is threadedly connected to the inner wall of the sleeve. A fixing ring is fixed on the outer wall of the end cap. The end of the sleeve away from the base is threadedly connected to the fixing ring. An opening is provided on the end cap.

[0009] By adopting the above technical solution, an installation ring is fixed on the base, and the sleeve is threadedly connected to the installation ring, which facilitates the installation and disassembly of the sleeve. The sleeve is also threadedly connected to the end cap, which facilitates the installation and disassembly of the end cap.

[0010] Optionally, a light-absorbing ring layer is installed on the side of the phosphor layer away from the substrate. The light-absorbing ring layer includes a mounting plate, which is fixed to the phosphor layer. The mounting plate has multiple mounting holes, each corresponding to a reflector. A light-absorbing ring is fixed on the wall of the mounting hole.

[0011] By adopting the above technical solution, the semiconductor chip emits light, which passes through a reflector and then through a light-absorbing ring. The light-absorbing ring can control the angle of the emitted light, reducing the possibility of the light source being exposed.

[0012] Optionally, an annular fixing block is fixed on the inner wall of the sleeve, and a limiting collar is fixed on the inner wall of the fixing block. The outer wall of the substrate, the outer wall of the phosphor layer, and the outer wall of the mounting plate are flush. The inner wall of the limiting collar is in contact with the outer wall of the substrate, the outer wall of the phosphor layer, and the outer wall of the mounting plate, respectively.

[0013] By adopting the above technical solution, the limiting collar plays a limiting role for the substrate, phosphor layer and mounting plate, thereby increasing the stability of the substrate, phosphor layer and mounting plate.

[0014] Optionally, a converging lens is provided between the fixing block and the end cap.

[0015] By adopting the above technical solution, the light emitted by the semiconductor chip passes through the reflector and the light-absorbing ring, and then exits through the converging lens. After passing through the converging lens, the light is refracted, causing the light to tend to be emitted as parallel light.

[0016] Optionally, a first gasket is fixed to the side of the end cap near the converging lens, and a second gasket is fixed to the side of the fixing block near the converging lens. Both the first and second gaskets are made of sponge material.

[0017] By adopting the above technical solution, the first and second gaskets protect the converging lens and reduce the possibility of damage to the converging lens.

[0018] Optionally, the base has a positioning hole on the side near the substrate, and a positioning block that is inserted into the positioning hole is fixed on the substrate.

[0019] By adopting the above technical solution, when installing the substrate, the positioning block on the substrate is aligned with the positioning hole on the base, and the positioning block is inserted into the positioning hole, which facilitates the positioning and installation of the substrate.

[0020] Optionally, a first magnet is fixed on the hole wall away from the substrate of the positioning hole, and a second magnet is fixed on the positioning block to be attracted and fixed to the first magnet.

[0021] By adopting the above technical solution, after the positioning block is inserted into the positioning hole, the first magnet and the second magnet attract and fix each other, which facilitates the installation and disassembly of the substrate.

[0022] Optionally, mounting blocks are fixed at both ends of the substrate, and two threaded rods are fixed on the base. The mounting blocks are provided with insertion holes. One of the threaded rods passes through the insertion hole on one of the mounting blocks and is threadedly connected to a locking nut. The other threaded rod passes through the insertion hole on the other mounting block and is threadedly connected to a locking nut.

[0023] By adopting the above technical solution, after the positioning block is inserted into the positioning hole, the threaded rod passes through the corresponding insertion hole and is threadedly connected to the threaded rod by the locking nut, so that the locking nut abuts against the mounting block, thereby further fixing the base plate and the base.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. By placing the reflector inside the phosphor layer, one reflector corresponds to one semiconductor chip. Compared with placing the reflector outside the LED chip, the volume of the light source module is reduced, and the overall volume of the lamp is reduced.

[0026] 2. When installing the substrate, align the positioning block on the substrate with the positioning hole on the base, and insert the positioning block into the positioning hole to facilitate the positioning and installation of the substrate;

[0027] 3. After the positioning block is inserted into the positioning hole, the first magnet and the second magnet attract and fix each other, which facilitates the installation and disassembly of the substrate. The locking nut is threadedly connected to the threaded rod, so that the locking nut abuts against the mounting block, thereby further fixing the substrate and the base. Attached Figure Description

[0028] Figure 1 This is a schematic diagram illustrating the overall structure of this application.

[0029] Figure 2 This is a cross-sectional structural diagram illustrating the present application.

[0030] Explanation of reference numerals in the attached drawings: 1. Base; 11. Positioning hole; 12. First magnet; 13. Mounting ring; 2. Substrate; 21. Positioning block; 22. Second magnet; 23. Mounting block; 231. Insertion hole; 3. Protective cover; 31. Sleeve; 32. End cap; 321. Opening; 33. Fixing ring; 34. Limiting collar; 35. Fixing block; 4. Fixing assembly; 41. Threaded rod; 42. Locking nut; 5. LED chip; 51. Semiconductor chip; 6. Reflector; 7. Phosphor layer; 8. Light-absorbing ring layer; 81. Mounting plate; 811. Mounting hole; 82. Light-absorbing ring; 9. Converging lens; 91. First gasket; 92. Second gasket. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0032] This application discloses a highly integrated COB (Chip-on-Board) integrated light source. (Refer to...) Figure 1 and Figure 2 The highly integrated COB integrated light source includes a base 1, a substrate 2 mounted on top of the base 1, the substrate 2 being cylindrical, an LED chip 5 mounted on the substrate 2, and a protective cover 3 mounted on the base 1.

[0033] Two positioning holes 11 are formed on the side of the base 1 near the substrate 2, and the two positioning holes 11 are symmetrically arranged about the center of the base 1. Two positioning blocks 21 are fixed on the substrate 2, one positioning block 21 is inserted into one positioning hole 11, and the other positioning block 21 is inserted into the other positioning hole 11. A first magnet 12 is fixed on the hole wall of the positioning hole 11 away from the substrate 2, and a second magnet 22 is fixed on the side of the positioning block 21 away from the substrate 2. The second magnet 22 and the first magnet 12 are attracted and fixed to each other.

[0034] When installing the substrate 2, the positioning block 21 is aligned with the corresponding positioning hole 11 and inserted, and the first magnet 12 and the second magnet 22 are attracted and fixed to each other, thereby fixing the substrate 2 and the base 1.

[0035] Mounting blocks 23 are fixed to both ends of the substrate 2. Two fixing components 4 are provided on the base 1. One fixing component 4 fixes one of the mounting blocks 23, and the other fixing component 4 fixes the other mounting block 23. The fixing component 4 includes a threaded rod 41 and a locking nut 42. The threaded rod 41 is fixed to the base 1. The mounting block 23 has an insertion hole 231. The threaded rod 41 passes through the insertion hole 231. The locking nut 42 is threadedly connected to the threaded rod 41 and abuts against the mounting block 23, thereby fixing the mounting block 23 and the substrate 2.

[0036] After the positioning block 21 is inserted into the corresponding positioning hole 11, the threaded rod 41 passes through the corresponding insertion hole 231. Then, the locking nut 42 is tightened so that the locking nut 42 presses against the mounting block 23, thereby making the connection of the base plate 2 more stable.

[0037] The LED chip 5 includes multiple semiconductor chips 51, which are uniformly fixed on a substrate 2. Multiple reflectors 6 are fixed on the substrate 2, each reflecting cup corresponding to one semiconductor chip 51. A phosphor layer 7, which is a layer of coating adhesive, is fixedly connected to the substrate 2, and the reflectors 6 are located within the phosphor layer 7. Placing the reflectors 6 within the phosphor layer 7 reduces the size of the light source module.

[0038] A light-absorbing ring layer 8 is connected to the side of the phosphor layer 7 away from the substrate 2. The light-absorbing ring layer 8 includes a mounting plate 81 with multiple mounting holes 811. Light-absorbing rings 82 are fixed on the walls of the mounting holes 811, and each light-absorbing ring 82 corresponds to a reflector 6. The light-absorbing rings 82 can control the angle of light emitted from the light source and reduce the possibility of light source exposure.

[0039] Reference Figure 1 and Figure 2 The protective cover 3 includes a sleeve 31 and an end cap 32. The end cap 32 is installed on the end of the sleeve 31 away from the base 1. A mounting ring 13 is fixed on the base 1. The inner wall of the mounting ring 13 contacts the outer wall of the sleeve 31, and the inner wall of the mounting ring 13 is threadedly connected to the sleeve 31. This makes it convenient to install and remove the sleeve 31. A fixing ring 33 is fixed on the outer wall of the end cap 32. The inner wall of the fixing ring 33 contacts the outer wall of the sleeve 31, and the inner wall of the fixing ring 33 is threadedly connected to the outer wall of the sleeve 31.

[0040] A limiting collar 34 is provided inside the sleeve 31. A fixing block 35 is fixed on the top side wall of the limiting collar 34. The fixing block 35 is annular in shape, and the side of the fixing block 35 away from the limiting collar 34 is fixed to the inner wall of the sleeve 31.

[0041] The outer walls of the substrate 2, the phosphor layer 7, and the mounting plate 81 are flush, and the inner wall of the limiting collar 34 is in contact with the outer wall of the substrate 2. After the sleeve 31 is installed on the base, the limiting collar 34 plays a limiting role for the substrate 2, the phosphor layer 7, and the mounting plate 81, thereby increasing the stability of the substrate 2, the phosphor layer 7, and the mounting plate 81.

[0042] A converging lens 9 is installed between the end cap 32 and the fixing block 35. A first gasket 91 is provided at the end of the converging lens 9 near the end cap 32, and a second gasket 92 is provided at the end of the converging lens 9 near the fixing block 35. The first gasket 91 is fixed to the end cap 32, and the second gasket 92 is fixed to the fixing block 35. Both the first gasket 91 and the second gasket 92 are annular gaskets, and both are made of sponge material. The first gasket 91 and the second gasket 92 protect the converging lens 9 and reduce the possibility of damage to the converging lens 9.

[0043] When installing the converging lens 9, first unscrew the end cap 32 from the sleeve 31, then place the converging lens 9 above the second gasket 92, and then screw the end cap 32 back on so that the first gasket 91 contacts the converging lens 9.

[0044] An opening 321 is provided on the end cap 32. The semiconductor chip 51 emits light, which passes through the reflector 6, the light-absorbing ring 82 and the converging lens 9 in sequence. After passing through the converging lens 9, the light is refracted, causing the light to be emitted from the opening 321 as parallel light rays.

[0045] The implementation principle of a highly integrated COB integrated light source according to an embodiment of this application is as follows: When installing the light source module, the substrate 2 is first fixed to the base 1, the positioning block 21 is inserted into the positioning hole 11, so that the first magnet 12 and the second magnet 22 attract and fix each other, and then the mounting block 23 is tightened by the locking nut 42, thereby fixing the substrate 2 to the base 1.

[0046] Next, the reflector cup 6 and semiconductor chip 51 are installed, followed by the phosphor layer 7 and light-absorbing ring layer 8. Finally, the protective cover 3 is installed, and the sleeve 31 is threadedly connected to the mounting ring 13, thereby fixing the sleeve 31 to the base 1. The reflector cup 6 is placed inside the phosphor layer 7, so that each reflector cup 6 corresponds to one semiconductor chip 51, thereby reducing the overall size of the lamp.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A highly integrated COB (Chip-on-Board) integrated light source, characterized in that: The system includes a base (1), a substrate (2) connected to the base (1), an LED chip (5) mounted on the substrate (2), the LED chip (5) including multiple semiconductor chips (51), multiple reflectors (6) fixed on the substrate (2), the reflectors (6) corresponding one-to-one with the semiconductor chips (51), a phosphor layer (7) fixed on the substrate (2), the reflectors (6) located inside the phosphor layer (7), and a protective cover (3) mounted on the substrate (2), the phosphor layer (7) and the substrate (2) located inside the protective cover (3). The protective cover (3) includes a sleeve (31) and an end cap (32). One end of the sleeve (31) is in contact with the base (1). An mounting ring (13) is fixed on the base (1). The outer wall of the mounting ring (13) is threadedly connected to the inner wall of the sleeve (31). A fixing ring (33) is fixed on the outer wall of the end cap (32). The end of the sleeve (31) away from the base (1) is threadedly connected to the fixing ring (33). An opening (321) is provided on the end cap (32). A light-absorbing ring layer (8) is installed on the side of the phosphor layer (7) away from the substrate (2). The light-absorbing ring layer (8) includes a mounting plate (81). The mounting plate (81) is fixed to the phosphor layer (7). The mounting plate (81) has a plurality of mounting holes (811). Each mounting hole (811) corresponds to a reflector (6). A light-absorbing ring (82) is fixed on the hole wall of the mounting hole (811). The base (1) has a positioning hole (11) on the side near the base plate (2), and a positioning block (21) is fixed on the base plate (2) to be inserted into the positioning hole (11).

2. The highly integrated COB integrated light source according to claim 1, characterized in that: An annular fixing block (35) is fixed on the inner wall of the sleeve (31), and a limiting collar (34) is fixed on the inner wall of the fixing block (35). The outer wall of the substrate (2), the outer wall of the phosphor layer (7) and the outer wall of the mounting plate (81) are flush. The inner wall of the limiting collar (34) is in contact with the outer wall of the substrate (2), the outer wall of the phosphor layer (7) and the outer wall of the mounting plate (81).

3. The highly integrated COB integrated light source according to claim 2, characterized in that: A converging lens (9) is provided between the fixing block (35) and the end cap (32).

4. The highly integrated COB integrated light source according to claim 3, characterized in that: The end cap (32) is fixed with a first gasket (91) on the side near the converging lens (9), and the fixing block (35) is fixed with a second gasket (92) on the side near the converging lens (9). Both the first gasket (91) and the second gasket (92) are made of sponge material.

5. The highly integrated COB integrated light source according to claim 1, characterized in that: A first magnet (12) is fixed on the hole wall of the positioning hole (11) away from the substrate (2), and a second magnet (22) is fixed on the positioning block (21) and attracted and fixed to the first magnet (12).

6. A highly integrated COB integrated light source according to claim 5, characterized in that: Mounting blocks (23) are fixed at both ends of the base plate (2). Two threaded rods (41) are fixed on the base (1). An insertion hole (231) is provided on the mounting block (23). One of the threaded rods (41) passes through the insertion hole (231) on one of the mounting blocks (23) and is threadedly connected to a locking nut (42). The other threaded rod (41) passes through the insertion hole (231) on the other mounting block (23) and is threadedly connected to a locking nut (42).

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