A snap-on bracket for fixing lens

Abstract

The utility model relates to the field of lamp lenses, and specifically discloses a snap-on bracket for fixing lenses, comprising a bracket lens and a bracket; the lens is a truncated cone shape with a large top and a small bottom, a plurality of first grooves are arranged on the side of the upper end of the lens, and the bottom surface of the lens abuts against an LED lamp; the bracket is a focusing cup shape that fits the lens, the bottom surface of the bracket abuts against a PCB board, a plurality of first snaps are arranged at the bottom of the bracket, a plurality of second snaps matching the first grooves are arranged on the inner side of the top of the bracket; and a first through hole corresponding to the first snap is arranged on the PCB board. The utility model makes the bracket of a light-proof material with high toughness, and fixes the lens on the PCB board by snapping, thereby reducing the processing difficulty and material limitation of the lens, and improving the production efficiency and installation efficiency of the lens.

Description

Technical Field

[0001] The utility model relates to the field of lamp lenses, in particular to a snap-on bracket fixing lens. Background Art

[0002] With the vigorous development and popularization of LED lamps, their application scenarios are becoming more and more extensive, and the demand for LED lamps is becoming more and more complex. For example, in the field of stage lights, due to the high requirements for focusing and even light, lenses are an indispensable and important component. There are many ways to fix lenses to LED light panels. Most of the lens fixing methods are copper columns plus sheet metal limiters, and then fixed by screws or adhesive.

[0003] However, the fixing method of screws or glue has great limitations. While increasing the production cost and production cycle of lamps, it wastes a lot of manpower and material resources in the production process and reduces production efficiency. In particular, when the lamp is heated during use, the glue fixing method is likely to loosen the glue and cause the lens to fall off, which is not conducive to the long-term use of the lamp.

[0004] In order to solve the above problems, many solutions have appeared on the market to directly fix the lens on the LED circuit board or lamp through buckles. Among them, fixing through lamps has great limitations and high costs. The existing solutions to directly fix the LED lens on the LED circuit board through buckles usually directly design several protruding clamping columns or hooks at the bottom of the lens, and directly pass through the through holes on the circuit board to fix the lens. However, commonly used lens materials with high light transmittance and good focusing characteristics (PC lenses, PMMA lenses or glass lenses) generally have problems such as low toughness, easy brittle fracture, and insufficient elastic deformation. The buckles processed by them are easy to break and the elastic arm is designed to be long, which makes the mold production / processing of the lens difficult, and it is easy to break and damage during long-term use. Utility Model Content

[0005] In order to overcome the above problems, the utility model provides a snap-on bracket for fixing a lens.

[0006] The technical solution adopted by the utility model is: a snap-on bracket fixing lens, which is used on a PCB board with an LED lamp, and comprises a lens and a bracket;

[0007] The lens is in the shape of a truncated cone with a larger top and a smaller bottom. A plurality of first grooves are provided on the side surface of the upper end of the lens, and the bottom surface of the lens abuts against the LED lamp.

[0008] The bracket is in the shape of a focusing cup that fits the lens, the bottom surface of the bracket abuts against the PCB board, a plurality of first buckles are provided at the bottom of the bracket, and a plurality of second buckles that match the first grooves are provided on the inner side of the top of the bracket;

[0009] The PCB board is provided with a first through hole corresponding to the first buckle.

[0010] Preferably, at least one positioning column is further provided at the bottom of the bracket, and a second through hole tightly matched with the positioning column is provided on the PCB board.

[0011] Preferably, two first buckles are provided, and the two first buckles are symmetrically arranged on both sides of the bottom of the bracket.

[0012] Preferably, the first buckle includes a barb and a connecting column, and the barb faces the outside of the bracket.

[0013] Preferably, a plurality of first positioning protrusions are provided on the side surface of the upper end of the lens, and a second groove matching with the first positioning protrusions is provided on the top of the bracket.

[0014] Preferably, a first through hole is provided in the middle of the lens, and a biconical lens coaxial with the lens is provided in the first through hole.

[0015] Preferably, a heat sink is fixedly provided on the back side of the PCB board, and a hole groove for avoiding the first buckle is provided on the heat sink.

[0016] Preferably, the inner layer of the bracket is provided with a mirror reflective layer.

[0017] The beneficial effects of the utility model are:

[0018] (1) The bracket is made of high-toughness opaque material, and the lens is fixed to the PCB board by snapping, thereby reducing the processing difficulty and material limitations of the lens and improving the production efficiency and installation efficiency of the lens.

[0019] (2) By wrapping the lens with a bracket in the shape of a focusing cup, the side light shielding effect can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings, wherein:

[0021] Figure 1 This is a schematic diagram of the support lens structure of the first embodiment of the utility model;

[0022] Figure 2 This is an exploded view of the support lens structure of the second embodiment of the utility model;

[0023] Figure 3 This is the overall structure diagram of the third embodiment of the present utility model;

[0024] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0025] In the figure: 1. lens; 101. first groove; 102. first positioning protrusion; 103. biconical lens; 2. bracket; 201. first buckle; 202. second buckle; 203. second groove; 204. positioning column; 3. PCB board; 301. LED lamp; 4. heat sink. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1 , is the first embodiment of the utility model, and this embodiment specifically discloses a snap-on bracket fixing lens, which is used on a PCB board 3 with an LED lamp 301 attached thereto, and specifically includes a lens 1 and a bracket 2;

[0028] The lens 1 of this embodiment is a truncated cone with a larger top and a smaller bottom. A plurality of first grooves 101 are provided on the side surface of the upper end of the lens 1, and the bottom surface of the lens 1 abuts against the LED lamp 301; the bracket 2 is a focusing cup shape that fits the lens 1, and the bottom surface of the bracket 2 abuts against the PCB board 3. A plurality of first buckles 201 are provided at the bottom of the bracket 2, and a plurality of second buckles 202 that match the first grooves 101 are provided on the inner side of the top of the bracket 2; a first through hole corresponding to the first buckle 201 is provided on the PCB board 3.

[0029] The bracket 2 is made of a high-toughness opaque material, and the lens 1 is fixed to the PCB board 3 by snapping, thereby reducing the processing difficulty and material limitation of the lens 1 and improving the production efficiency and installation efficiency of the lens 1.

[0030] See also Figure 2 , which is the second embodiment of the utility model. The difference between this embodiment and the first embodiment is that at least one positioning column 204 is further provided at the bottom of the bracket 2, and a second through hole tightly matched with the positioning column 204 is provided on the PCB board 3, thereby increasing the stability between the lenses 1.

[0031] The first buckle 201 of this embodiment includes a barb and a connecting column, and the bracket 2 is used to elastically deform when the barb is embedded, and the barb faces the outside of the bracket 2. Two first buckles 201 are provided, and the two first buckles 201 are symmetrically arranged on both sides of the bottom of the bracket 2. Only two square openings are required on the PCB to fix one lens 1, and the installation and fixation are sufficiently stable.

[0032] A plurality of first positioning protrusions 102 are provided on the side surface of the upper end of the lens 1, and a second groove 203 matching with the first positioning protrusion 102 is provided on the top of the bracket 2, so that the matching between the lens 1 and the bracket 2 is more stable, and at the same time, positioning conditions are provided for the matching between the first groove 101 and the second buckle 202 when the lens 1 is installed.

[0033] A first through hole is provided in the middle of the lens 1 , and a biconical lens 103 which is integrally formed with the lens 1 and coaxial with the lens 1 is provided in the first through hole.

[0034] See also Figure 3 to Figure 4 , which is the third embodiment of the utility model. The difference between this embodiment and the first embodiment is that a heat sink 4 is fixedly provided on the back of the PCB board 3, and a hole groove for avoiding the first buckle 201 is provided on the heat sink 4.

[0035] The inner layer of the bracket 2 of this embodiment is provided with a mirror reflective layer. By wrapping the lens 1 with the bracket 2 in the shape of a focusing cup, the effects of focusing and side shading can be achieved, providing a low-cost focusing effect for the light path of the stage light.

[0036] The above specific embodiments further describe the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above are only specific embodiments of the utility model and are not intended to limit the protection scope of the utility model. It is particularly pointed out that for those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A snap-on bracket fixing lens, used on a PCB board (3) with an LED lamp (301) attached thereto, characterized in that: It comprises a lens (1) and a bracket (2); The lens (1) is in the shape of a truncated cone with a larger top and a smaller bottom. A plurality of first grooves (101) are provided on the side surface of the upper end of the lens (1). The bottom surface of the lens (1) abuts against the LED lamp (301). The bracket (2) is in the shape of a focusing cup that fits the lens (1); the bottom surface of the bracket (2) abuts against the PCB board (3); a plurality of first buckles (201) are provided at the bottom of the bracket (2); and a plurality of second buckles (202) that match the first grooves (101) are provided on the inner side of the top of the bracket (2); The PCB board (3) is provided with a first through hole corresponding to the first buckle (201).

2. A snap-on bracket for fixing a lens according to claim 1, characterized in that: The bottom of the bracket (2) is also provided with at least one positioning column (204), and the PCB board (3) is provided with a second through hole tightly matched with the positioning column (204).

3. The snap-on bracket for fixing a lens according to claim 1, characterized in that: Two first buckles (201) are provided, and the two first buckles (201) are symmetrically arranged on two sides of the bottom of the bracket (2).

4. The snap-on bracket for fixing a lens according to claim 1, characterized in that: The first buckle (201) comprises a barb and a connecting column, and the barb faces the outside of the bracket (2).

5. The snap-on bracket for fixing a lens according to claim 1, characterized in that: A plurality of first positioning protrusions (102) are provided on the side surface of the upper end of the lens (1), and a second groove (203) matching with the first positioning protrusions (102) is provided on the top of the bracket (2).

6. The snap-on bracket for fixing a lens according to claim 1, characterized in that: A first through hole is provided in the middle of the lens (1), and a biconical lens (103) coaxial with the lens (1) is provided in the first through hole.

7. The snap-on bracket for fixing a lens according to claim 1, characterized in that: A heat sink (4) is fixedly provided on the back of the PCB board (3), and a hole groove for avoiding the first buckle (201) is provided on the heat sink (4).

8. The snap-on bracket for fixing a lens according to claim 1, characterized in that: The inner layer of the support (2) is provided with a mirror reflective layer.

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