CN219796989U

CN219796989U - Uniform light bar-shaped light source

Info

Publication number: CN219796989U
Application number: CN202321224094.1U
Authority: CN
Inventors: 陈志海; 王智峰
Original assignee: Inner Mongolia Leading Optoelectronic Technology Co ltd
Current assignee: Inner Mongolia Leading Optoelectronic Technology Co ltd
Priority date: 2023-05-19
Filing date: 2023-05-19
Publication date: 2023-10-03
Anticipated expiration: 2033-05-19

Abstract

The utility model relates to the technical field of light sources, in particular to a uniform light bar-shaped light source. The LED lamp comprises a base, the front portion of base is provided with the luminescent plate, arrange a plurality of LED lamp pearls in the luminescent plate, the front portion of luminescent plate is equipped with the diffusion plate, the upper and lower both sides of base are detachable respectively and are connected with the curb plate, both ends are connected with the end plate about the base, the luminescent plate with be equipped with the reflecting plate between the diffusion plate, be equipped with outstanding reflection post in the reflecting plate, the top of reflection post is equipped with pyramid reflecting surface. The reflective columns and the pyramid-shaped reflective surfaces are arranged to improve the heat dissipation capacity and increase the uniformity of light emission of the light source.

Description

Uniform light bar-shaped light source

Technical Field

The utility model relates to the technical field of light sources, in particular to a uniform light bar-shaped light source.

Background

The strip light source comprises high density direct-insert type LED lamp bead array, is suitable for large format visual inspection, and a plurality of strip light sources can be freely combined, and irradiation angle also can be freely adjusted, and current strip light source is to reach better even luminous, needs to increase the intensive degree of LED lamp bead, and the increase of LED lamp bead just requires better radiating condition, and radiating speed is with the heat gathering speed that the work of LED lamp bead produced, will lead to LED lamp bead luminance decay or LED damage, seriously influences the life of light source, and the chinese patent application of current patent publication No. CN217059965U discloses a strip structure light source, though has improved the heat dispersion of light source through increasing a large amount of radiator fan, has also increased holistic power consumption of light source and noise in use, still can cause the vibration in the light source use, serious can cause vision system's interference.

Disclosure of Invention

The utility model aims to solve the technical problems, and provides a uniform light bar-shaped light source, wherein the reflective columns are adopted to increase the uniformity of light emission of the light source and increase the heat dissipation capacity, so that the problems of poor uniformity of light emission and poor heat dissipation capacity of the light source in the prior art are solved.

In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a light-homogenizing strip light source, includes the base, and the front portion of base is provided with the luminescent plate, has arranged a plurality of LED lamp pearls in the luminescent plate, and the front portion of luminescent plate is equipped with the diffusion plate, and the upper and lower both sides of base are detachable respectively and are connected with the curb plate, and both ends are connected with the end plate about the base, are equipped with the reflecting plate between luminescent plate and the diffusion plate, are equipped with outstanding reflection post in the reflecting plate, and the top of reflection post is equipped with pyramid reflecting surface. The reflective columns and the pyramid-shaped reflective surfaces are arranged to improve the heat dissipation capacity and increase the uniformity of light emission of the light source.

Further optimize this technical scheme, the upper and lower both sides of base are equipped with the step groove of indent respectively, and the curb plate passes through the detachable embedding of screw in the step groove.

Further optimize this technical scheme, the luminescent plate includes heat-conducting plate and PCB board, and the welding of LED lamp pearl is equipped with the perforation in the reflecting plate in the PCB board, and the perforation cover is established in the outside of LED lamp pearl, and the space department between a plurality of perforations is established to the reflection post.

Further optimize this technical scheme, reflecting plate and reflection post are the heat conduction material, are equipped with the louvre in the end plate.

Further optimizing this technical scheme, the upper and lower both sides of heat-conducting plate are connected with the inner wall contact of curb plate respectively, are equipped with heat conduction silicone grease layer between PCB board and the heat-conducting plate and between PCB board and the reflecting plate respectively.

Further optimize this technical scheme, the inner wall of curb plate is equipped with layering portion along length direction, and heat-conducting plate, PCB board and reflecting plate are established in the space that forms between layering portion and base, and one side that layering portion kept away from the reflecting plate is equipped with the slope reflecting surface.

Further optimize this technical scheme, one side that the diffusion plate was kept away from to the base is equipped with the mounting groove along length direction.

Compared with the prior art, the utility model has the following advantages: 1. the reflection effect of the LED lamp beads after light emission is improved through the arranged reflection plate, the light equalizing degree in the use of the strip-shaped light source is improved, the heat radiating area is increased while the distribution quantity of the LED lamp beads is reduced, the side plates are detachably connected through the arranged screws, the flexibility of light source combination is improved through the modularized structure, the assembly of the light source assembly is more flexible, and the overall processing cost of the light source assembly is reduced; 2. the positioning capability of the side plates and the end plates during installation is improved by arranging the concave step grooves, the installation is more convenient and more accurate, and the assembly time is saved; 3. the air convection capacity inside the strip-shaped light source is improved through the arranged radiating holes, so that the radiating effect is further improved; 4. the heat conduction capacity of the whole light source assembly is improved through the arranged heat conduction silicone grease layer, so that heat is prevented from accumulating in the light source, and damage to LED lamp beads caused by overhigh local temperature is avoided; 5. through the inclined reflecting surface, the reflecting capacity of the upper side and the lower side of the strip-shaped light source is further improved, and the heating source is reduced.

Drawings

Fig. 1 is a schematic view of an external structure of a uniform light bar-shaped light source.

Fig. 2 is an exploded view of a uniform light bar light source.

Fig. 3 is a partial view of a light emitting surface of a uniform light bar-shaped light source with a diffusion plate removed.

Fig. 4 is a cross-sectional view of a uniform light bar light source.

In the figure: 1. a base; 10. a mounting groove; 11. a step groove; 2. a diffusion plate; 3. a side plate; 31. a layering part; 32. tilting the reflecting surface; 33. a clamping groove; 4. a light emitting panel; 40. a heat conductive plate; 41. LED lamp beads; 42. a PCB board; 5. an end plate; 51. a heat radiation hole; 6. a reflection plate; 60. perforating; 61. a reflective column; 62. a pyramid-shaped reflecting surface.

Description of the embodiments

The present utility model will be further described in detail with reference to the drawings in conjunction with the detailed description, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the description is only illustrative and is not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

Referring to fig. 1-2, a light-homogenizing strip-shaped light source comprises a base 1, wherein side plates 3 are detachably connected to the upper side and the lower side of the base 1 respectively, concave step grooves 11 are formed in the upper side and the lower side of the base 1 respectively, the side plates 3 are detachably embedded in the step grooves 11 through screws, end plates 5 are connected to the left end and the right end of the base 1, the side plates 3 and the end plates 5 jointly form a groove-shaped cavity, a light-emitting plate 4 is arranged in the cavity, and an installation groove 10 is formed in one side, far away from the diffusion plate 2, of the base 1 along the length direction.

As shown in fig. 4, the light emitting plate 4 is arranged at the front part of the base 1, a plurality of LED lamp beads 41 are arranged in the light emitting plate 4, the front part of the light emitting plate 4 is provided with the diffusion plate 2, the upper and lower sides of the diffusion plate 2 are embedded in the clamping grooves 33 of the side plates 3, the reflecting plate 6 is arranged between the light emitting plate 4 and the diffusion plate 2, the light emitting plate 4 comprises a heat conducting plate 40 and a PCB 42, the plurality of LED lamp beads 41 are alternately and densely welded in the PCB 42,

as shown in fig. 3-4, the reflecting plate 6 is provided with protruding reflecting posts 61, the top of the reflecting posts 61 is provided with rectangular pyramid-shaped reflecting surfaces 62, four reflecting aspects of the pyramid-shaped reflecting surfaces 62 are opposite to one LED lamp bead 41, and each reflecting surface has an included angle of forty-five degrees with the plane of the diffusing plate. The reflecting plate 6 is provided with through holes 60, the through holes 60 are sleeved outside the LED lamp beads 41, and the reflecting columns 61 are arranged at gaps among the through holes 60. The reflecting plate 6 and the reflecting column 61 are made of heat conducting materials, the end plate 5 is provided with a heat dissipation hole 51, and the heat dissipation hole 51 is communicated with the accommodating cavity.

The upper and lower sides of the heat-conducting plate 40 are respectively connected with the inner wall of the side plate 3 in a contact way, and heat-conducting silicone grease layers are respectively arranged between the PCB 42 and the heat-conducting plate 40 and between the PCB 42 and the reflecting plate 6. As shown in fig. 4, the inner wall of the side plate 3 is provided with a pressing bar portion 31 along the length direction, the heat conducting plate 40, the PCB board 42 and the reflecting plate 6 are arranged in a gap formed between the pressing bar portion 31 and the base 1, and one side of the pressing bar portion 31 away from the reflecting plate 6 is provided with an inclined reflecting surface 32.

During assembly, as shown in fig. 1-4, a heat conducting plate 40, a PCB 42 and a reflecting plate 6 are stacked on one side of the base 1, a certain amount of heat conducting silicone grease is coated between every two heat conducting plates to increase the heat dissipation capacity of the PCB 42, the side plates 3 are installed in the step grooves 11 on the upper side and the lower side of the base 1 and are connected through screws, the diffusion plate 2 is penetrated into the clamping grooves 33, and finally the screws in the side plates 3 are screwed to clamp the luminous plate 4 and the reflecting plate 6 with the base 1, so that the upper surface and the lower surface of the diffusion plate 2 are fixed. Finally, end plates 5 at the two ends of the base 1 are installed.

The working principle is that, as shown in fig. 4, a part of light emitted by the LED lamp beads 41 is directly emitted through the diffusion plate 2, a part of scattered light around the LED lamp beads 41 irradiates onto the pyramid-shaped reflecting surface 62 and is finally reflected into the diffusion plate 2 to be emitted, a part of scattered light of the LED lamp beads 41 is reflected into the diffusion plate 2 through the inclined reflecting surface 32 of the side plate 3 to be emitted, and the heat of the front side of the light-emitting plate 4 can be brought into the air of the cavity to be finally emitted through 51 while the light is reflected by the reflecting column 61, so that the heat-emitting capacity is improved, the light-emitting uniformity of a light source is increased, and the service life of the LED lamp beads 41 is prolonged.

Claims

1. The utility model provides a light-homogenizing strip light source, includes base (1), the front portion of base (1) is provided with luminescent plate (4), a plurality of LED lamp pearls (41) have been arranged in luminescent plate (4), the front portion of luminescent plate (4) is equipped with diffusion plate (2), its characterized in that: the LED lamp is characterized in that side plates (3) are detachably connected to the upper side and the lower side of the base (1) respectively, end plates (5) are connected to the left end and the right end of the base (1), a reflecting plate (6) is arranged between the light-emitting plate (4) and the diffusion plate (2), protruding reflecting columns (61) are arranged in the reflecting plate (6), and pyramid-shaped reflecting surfaces (62) are arranged at the tops of the reflecting columns (61).

2. A uniform light bar light source according to claim 1, wherein: the upper side and the lower side of the base (1) are respectively provided with a concave step groove (11), and the side plates (3) are detachably embedded into the step grooves (11) through screws.

3. A uniform light bar light source according to claim 2, wherein: the LED lamp beads (41) are welded in the PCB (42), the perforated holes (60) are formed in the reflecting plate (6), the perforated holes (60) are sleeved on the outer sides of the LED lamp beads (41), and the reflecting columns (61) are arranged at the gaps among the perforated holes (60).

4. A uniform light bar light source according to claim 3, wherein: the reflecting plate (6) and the reflecting columns (61) are made of heat conducting materials, and the end plate (5) is provided with heat dissipation holes (51).

5. A uniform light bar light source according to claim 3, wherein: the upper side and the lower side of the heat conducting plate (40) are respectively in contact connection with the inner wall of the side plate (3), and heat conducting silicone grease layers are respectively arranged between the PCB (42) and the heat conducting plate (40) and between the PCB (42) and the reflecting plate (6).

6. A uniform light bar light source according to claim 4 or 5, wherein: the inner wall of the side plate (3) is provided with a pressing strip portion (31) along the length direction, the heat conducting plate (40), the PCB (42) and the reflecting plate (6) are arranged in a gap formed between the pressing strip portion (31) and the base (1), and one side, away from the reflecting plate (6), of the pressing strip portion (31) is provided with an inclined reflecting surface (32).

7. The uniform light bar light source according to claim 6, wherein: one side of the base (1) far away from the diffusion plate (2) is provided with a mounting groove (10) along the length direction.