Uniform light irradiation LED light bar

Abstract

The utility model discloses a uniform light irradiation LED lamp bar which comprises a PCB, a plurality of LED lamp beads are arranged on the PCB at intervals, lenses are correspondingly arranged on the LED lamp beads, fixing parts capable of enabling the lenses and the LED lamp beads to be in butt joint are arranged below the PCB, and anti-dazzle parts are arranged below the lenses. And meanwhile, the LED lamp beads can be prevented from generating glare.

Description

Technical Field

[0001] The utility model relates to the technical field of LED light bars, in particular to an LED light bar for uniform light illumination. Background Art

[0002] LED light strips are the light source for LED TV backlights. LED light strips are categorized as direct-lit or edge-lit depending on the thickness of the TV. Currently, direct-lit LED light strips primarily utilize LED lamp beads and lenses attached to a PCB. The way the LED lamp beads and lens are bonded directly impacts the production efficiency of the LED light strip, and the light output of the lens directly determines the optical quality of the TV backlight. The existing lens-to-LED light strip integration method involves mounting the lens on the PCB. The SMT placement machine then picks up the lens, scans each lamp bead on the PCB, and analyzes its coordinates. The lens is then attached to the corresponding lamp bead on the PCB one by one. The SMT placement machine scans and identifies each lamp bead's coordinates on the PCB, a time-consuming process. When the lens is attached to each LED bead on the PCB, the center of the lens and the LED bead can easily shift, resulting in uneven light output. This production process places high demands on the tolerance of both the production equipment and the lens, leading to a high defect rate. The lens utilizes a built-in four-leg structure (with four axially symmetrical legs). The SMT production process requires identifying the orientation of the lens legs, resulting in low production efficiency. Utility Model Content

[0003] The purpose of this utility model is to provide a uniform light irradiation LED light bar, which can solve at least one of the above technical problems. The technical solution of this utility model is as follows:

[0004] A uniform light irradiation LED light strip comprises: a PCB board, a plurality of LED lamp beads are arranged at intervals on the PCB board, a lens is correspondingly provided on each of the LED lamp beads, a fixing portion capable of docking the lens and the LED lamp beads is provided below the PCB board, an anti-glare portion is provided below each of the lenses, the fixing portion comprises a plurality of fixing frames arranged on the PCB board below each of the LED lamp beads, a plurality of plug pins are fixed at the four corners of each of the fixing frames, a plurality of plug holes capable of docking with the plug pins are provided on the PCB board, a placement groove capable of placing a lens is provided in the middle of each of the fixing frames, a plurality of card slots are arranged at intervals on each of the placement grooves, and a plurality of card blocks are arranged at intervals above each of the lenses.

[0005] Furthermore, a light inlet groove is provided above each lens, and a retracting position is provided below the lens.

[0006] Furthermore, the anti-glare part includes a guide groove fixed at the four corners below each of the fixed frames, a buckle groove is provided on one side of each of the guide grooves, an anti-glare mirror is provided under each of the lenses, a connecting rod is fixed at the four corners of each of the anti-glare mirrors, and a buckle block is fixed at the upper end of each of the connecting rods.

[0007] Preferably, each of the anti-glare mirrors is provided with anti-glare patterns.

[0008] Preferably, a plurality of mark points are provided on the PCB board on the left and right sides of each lamp bead.

[0009] Preferably, a scale mark is provided on the PCB board.

[0010] In summary, the present invention has the following beneficial effects compared to the prior art:

[0011] The utility model provides an LED light strip for uniform light illumination. During production, a PCB board is conveyed by a chip mounter. At the same time, the chip mounter can identify the position of the LED lamp beads through multiple mark points. Then, the assembled fixing part, lens and anti-glare part are mounted on the PCB board by the chip mounter. The lens mounted by the chip mounter can be accurately docked with the LED lamp beads through the fixing part to prevent the lens and the light outlet of the LED lamp beads from being offset, and the anti-glare part can prevent the LED lamp beads from generating glare. Compared with the existing technology, the light output of the LED lamp beads can be made uniform and glare can be prevented from being generated by the LED lamp beads. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional schematic diagram of the present utility model.

[0013] Figure 2 It is a half-section schematic diagram of the present utility model.

[0014] Figure 3 This is one of the exploded schematic diagrams of the present invention.

[0015] Figure 4 This is the second exploded diagram of the present invention.

[0016] Figure 5 For this utility model Figure 3 An enlarged schematic diagram of A-1.

[0017] Explanation of the accompanying drawings: 1. PCB board; 2. LED lamp bead; 3. Lens; 4. Fixing part; 5. Anti-glare part 31. Light inlet slot; 32. Retraction position; 41. Fixing frame; 42. Plug pin; 43. Plug hole; 44. Placement slot; 45. Card slot; 46. Card block; 51. Guide slot; 52. Buckle slot; 53. Anti-glare mirror; 54. Connecting rod; 55. Buckle block; 531. Anti-glare pattern; 11. Mark point; 12. Scale mark. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0019] like Figures 1 to 5 The uniform light irradiation LED light strip shown is characterized in that it includes: a PCB board 1, a plurality of mark points 11 are provided on the PCB board 1 on the left and right sides of each LED lamp bead 2, a plurality of LED lamp beads 2 are arranged at intervals on the PCB board 1, a lens 3 is correspondingly provided on each of the LED lamp beads 2, a fixing part 4 that can connect the lens 3 and the LED lamp bead 2 is provided below the PCB board 1, and an anti-glare part 5 is provided below each of the lenses 3.

[0020] The above structure is a uniform light irradiation LED light strip, which is produced by conveying a PCB board 1 through a placement machine. At the same time, the placement machine can identify the position of the LED lamp bead 2 through multiple mark points 11, and then the assembled fixing part 4, lens 3 and anti-glare part 5 are installed on the PCB board 1 through the placement machine. The lens 3 installed by the placement machine can be accurately docked with the LED lamp bead 2 through the fixing part 4 to prevent the lens 3 and the LED lamp bead 2 from being offset at the light output point, and the anti-glare part 5 can prevent the LED lamp bead 2 from generating glare. Compared with the existing technology, the light output of the LED lamp bead can be made uniform and the LED lamp bead can be prevented from generating glare.

[0021] like Figure 4 As shown, in some embodiments of the present invention, a light inlet groove 31 is provided above each lens 3, and a retraction position 32 is provided below the lens 3. After the lens 3 is installed, the light inlet groove 31 thereon and the LED lamp bead 2 are docked. When the LED lamp bead 2 emits light, the light can be effectively concentrated through the retraction position 32 provided below the lens 3.

[0022] like Figure 5 As shown, in some embodiments of the present invention, the fixing portion 4 includes a plurality of fixing frames 41 arranged on the PCB board 1 below each of the LED lamp beads 2, a plurality of plug pins 42 are fixed at the four corners of each of the fixing frames 41, a plurality of plug holes 43 that can be connected to the plug pins 42 are provided on the PCB board 1, a placement groove 44 for placing the lens 3 is provided in the middle of each of the fixing frames 41, a plurality of card slots 45 are provided at intervals on each of the placement grooves 44, and a plurality of card blocks 46 are provided at intervals above each of the lenses 3. During installation, the fixing frame 41 is guided and inserted into the plug hole 43 through the plug pins 42, so that the lens 3 can be connected to the LED lamp bead 2 according to the fixed range to prevent displacement. At the same time, the LED lamp bead 2 is snapped into the card slot 45 on the placement groove 44 through the multiple card blocks 43 thereon, and the lens 3 is arranged in the placement groove 44.

[0023] like Figure 5 As shown, in some embodiments of the present invention, the anti-glare part 5 includes a guide groove 51 fixed at the four corners below each of the fixed frames 41, a buckle groove 52 is provided on one side of each of the guide grooves 51, an anti-glare mirror 53 is provided below each of the lenses 3, and an anti-glare pattern 531 is provided on each of the anti-glare mirrors 53. A connecting rod 54 is fixed at the four corners of each of the anti-glare mirrors 53, and a buckle block 55 is fixed at the upper end of each of the connecting rods 54. The anti-glare mirror 53 is plugged into the guide groove 51 through the connecting rod 54. At this time, the buckle block 55 on the connecting rod 54 contacts the guide groove 51, and at the same time causes the connecting rod 54 to deform until the buckle block 55 is buckled in the buckle groove 52. When the LED lamp bead 2 is illuminated, it will pass through the anti-glare pattern 531 on the anti-glare mirror 53 to prevent the LED lamp bead 2 from generating glare.

[0024] like Figure 1 As shown, in some embodiments of the present invention, a dimension mark 12 is provided on the PCB board 1 , and the user can cut the appropriate length according to the dimension mark 12 provided on the PCB board 1 when installing the LED light strip.

[0025] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for illustrative purposes. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A uniform light irradiation LED light bar, characterized in that: include: A PCB board (1) is provided with a plurality of LED lamp beads (2) at intervals on the PCB board (1), a lens (3) is correspondingly provided on each of the LED lamp beads (2), a fixing portion (4) capable of docking the lens (3) and the LED lamp bead (2) is provided below the PCB board (1), an anti-glare portion (5) is provided below each of the lenses (3), the fixing portion (4) comprises a plurality of fixing frames (41) arranged below each of the LED lamp beads (2) and located on the PCB board (1), a plurality of plug pins (42) are fixed at the four corners of each of the fixing frames (41), a plurality of plug holes (43) capable of docking with the plug pins (42) are provided on the PCB board (1), a placement groove (44) capable of accommodating the lens (3) is provided in the middle of each of the fixing frames (41), a plurality of card slots (45) are provided at intervals on each of the placement grooves (44), and a plurality of card blocks (46) are provided at intervals above each of the lenses (3).

2. The LED light strip according to claim 1, characterized in that A light inlet groove (31) is provided above each lens (3), and a retracting position (32) is provided below the lens (3).

3. The LED light strip according to claim 1, characterized in that The anti-glare portion (5) comprises a guide groove (51) fixed at the four corners below each of the fixed frames (41); a buckle groove (52) is provided on one side of each of the guide grooves (51); an anti-glare mirror (53) is provided below each of the lenses (3); a connecting rod (54) is fixed at the four corners of each of the anti-glare mirrors (53); and a buckle block (55) is fixed at the upper end of each of the connecting rods (54).

4. The LED light strip according to claim 3, characterized in that Each of the anti-glare mirrors (53) is provided with an anti-glare pattern (531).

5. The LED light strip according to claim 1, characterized in that A plurality of mark points (11) are provided on the PCB board (1) on the left and right sides of each LED lamp bead (2).

6. The LED light strip according to claim 1, characterized in that A scale mark (12) is provided on the PCB board (1).

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