CN211625000U

CN211625000U - LED backlight source with light-gathering high brightness

Info

Publication number: CN211625000U
Application number: CN202020567846.4U
Authority: CN
Inventors: 马文彬
Original assignee: Shenzhen Adx Electronics Co ltd
Current assignee: Shenzhen Adx Electronics Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-10-02
Anticipated expiration: 2030-04-16

Abstract

The utility model provides a LED backlight with spotlight nature hi-lite belongs to backlight technical field, and this LED backlight with spotlight nature hi-lite includes the protective housing, protective housing top outer wall is fixed with the top cap through the hinge, and the inner wall welding of protective housing bottom has heat conduction device, and heat conduction device top outer wall is fixed with the LED light source more than three respectively through the screw thread, and the LED light source includes four LED lamps and a concave type bowl, concave type bowl bottom outer wall is fixed in on the heat conduction device top outer wall through the screw thread. The utility model discloses a be provided with four LED lamps in a LED light source, can let the LED backlight produce the LED light that luminance is higher to improved the luminous efficacy of LED backlight, through being provided with the reflecting plate, can effectually reflect the light that the LED backlight produced, thereby improved the utilization ratio that the LED backlight was set a light.

Description

LED backlight source with light-gathering high brightness

Technical Field

The utility model belongs to the technical field of the backlight, concretely relates to LED backlight with spotlight nature hi-lite.

Background

In the prior art, the backlight module usually uses an LED light bar as a backlight source, and accordingly, the LED light bar for the backlight module is also called as an LED backlight source. Light emitted by the light source enters the light guide plate and then encounters a scattering light spot in the light guide plate to generate diffuse reflection, light emitted to the bottom of the light guide plate is reflected by the reflecting plate and then is emitted out through the light guide plate, the backlight effect is realized, how to enable the backlight light source to be uniform is always pursued by people, meanwhile, the LED lamp generates light when electrified, meanwhile, the light can generate heat in the scattering and diffuse reflection process, the common LED backlight source is sealed on an instrument, the heat cannot be dissipated outwards, the backlight source is easily caused to be overhigh in temperature and influence the use, and the setting of the position of the light source can also influence the uniformity and the brightness of the light efficiency.

Through retrieval discovery, a novel LED backlight source is disclosed in a Chinese patent with an authorization publication number of CN207421914U, the novel LED backlight source comprises an LED backlight source base, an LED light source, a reflecting plate, a light source mixing cavity and a diffusion diaphragm, the LED backlight source base is a rectangular sinking base integrally formed by a PCB (printed Circuit Board), the reflecting plate comprises a bottom reflecting plate and a side plate reflecting plate, the bottom reflecting plate is positioned at the bottom of the LED backlight source base, and the side plate reflecting plate is arranged around the LED backlight source base.

However, in the above technical scheme, only one LED light source is installed inside one reflection plate, so that the brightness of the backlight source is not high enough, and the inside of the backlight source adopts a vacuum structure for heat dissipation, so that the equipment maintenance is troublesome, and the maintenance cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a LED backlight with spotlight nature hi-lite aims at solving the luminance among the prior art and is high inadequately and maintain inconvenient problem.

In order to achieve the above object, the utility model provides a following technical scheme: the LED lamp protection device comprises a protection shell, the outer wall of the top of the protection shell is fixedly provided with a top cover through a hinge, the inner wall of the bottom of the protection shell is welded with a heat conducting device, the outer wall of the top of the heat conducting device is fixedly provided with more than three LED light sources through threads, each LED light source comprises four LED lamps and a concave reflector, the outer wall of the bottom of the concave reflector is fixedly arranged on the outer wall of the top of the heat conducting device through threads, and the four LED lamps are fixedly arranged on the inner wall of.

In order can be fine conduct the device outside with the heat, conduct the utility model relates to a preferred, heat conduction device includes heat dissipation support column and heat-conducting plate, and heat dissipation support column bottom outer wall welds on protective housing bottom inner wall, and heat-conducting plate bottom outer wall welds on heat dissipation support column top outer wall.

In order to avoid the light source diffusion to appear, as the utility model relates to an it is preferred, the welding of protective housing inner wall has the curb plate reflecting plate, and the curb plate reflecting plate is glossy reflection of light material.

In order to improve the utilization ratio of light source, as the utility model relates to an it is preferred, the welding of curb plate reflecting plate bottom outer wall has the reflecting plate, and reflecting plate top outer wall is opened has the through-hole more than three.

For improve equipment's radiating effect, conduct the utility model relates to an it is preferred, protective housing bottom inner wall has the ventilation fan through the screw fixation.

In order to protect the internal device of LED backlight, as the utility model relates to an it is preferred, protective housing top outer wall has the diffusion diaphragm through the screw fixation, and the diffusion diaphragm is the polyester film material.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the four LED lamps are arranged in one LED light source, so that the LED backlight source can generate LED light with higher brightness, and the luminous performance of the LED backlight source is improved.

2. Through being provided with the reflecting plate, can effectually reflect the light that the LED backlight produced to the utilization ratio of LED backlight to setting a camera to light has been improved.

3. Through being provided with heat-conducting device, can be fine derive the heat that the LED light source produced to avoided because the too high problem of damaging equipment of temperature, improved the life of LED backlight.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic view of the structure of the present invention;

fig. 2 is a schematic sectional view of the present invention;

fig. 3 is a schematic structural diagram of an LED backlight according to the present invention;

in the figure: 1-protective shell; 2-side plate reflecting plate; 3-an LED light source; 4-a reflector plate; 5-a top cover; 6-concave reflector; 7-radiating support columns; 8-a ventilating fan; 9-a diffusion membrane; 10-a heat-conducting plate; 11-LED lamp.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides the following technical solutions: including

protective housing

1, 1 top outer wall of protective housing is fixed with top cap 5 through the hinge, and 1 bottom inner wall welding of protective housing has heat-transfer device, and heat-transfer device top outer wall is fixed with LED light source 3 more than three respectively through the screw thread, and LED light source 3 includes four LED lamps 11 and a

concave type bowl

6, 6 bottom outer walls of concave type bowl are fixed in on the heat-transfer device top outer wall through the screw thread, and four LED lamps 11 are fixed in on the 6 bottom inner walls of concave type bowl through the screw thread respectively.

The utility model discloses an in the concrete embodiment, when the LED backlight begins working, four inside LED lamps 11 of LED light source 3 can provide very high luminance, concave type bowl 6 can upwards refract the light source that LED lamp 11 sent to avoid the diffusion to appear in the ascending both sides of light source, improve leaded light effect and spotlight nature, when needs are changed inside LED lamp 11, can open top cap 5 and change the LED lamp, can also be very convenient clear up and maintain inside the backlight device.

Specifically, heat-conducting device includes heat dissipation support column 7 and heat-conducting plate 10, and heat dissipation support column 7 bottom outer wall welds on 1 bottom inner wall of protective housing, and heat-conducting plate 10 bottom outer wall welds on heat dissipation support column 7 top outer wall.

In this embodiment: the LED light source 3 can generate a large amount of heat during working, in order to avoid the damage to equipment due to overhigh heat, the heat conducting plate 10 can conduct the heat to the heat dissipation supporting columns 7 well, and the heat can be quickly transferred out of the protective shell 1 through the heat dissipation supporting columns 7, so that the heat dissipation performance of the device is improved.

Specifically, the inner wall of the protective shell 1 is welded with a side plate reflecting plate 2, and the side plate reflecting plate 2 is made of smooth light-reflecting materials.

In this embodiment: the side plate reflecting plate 2 can effectively refract the LED light emitted by the LED light source 3, so that the light source is prevented from being diffused, and the light gathering performance of the device is improved.

Specifically, the outer wall of the bottom of the side plate reflecting plate 2 is welded with a reflecting plate 4, and the outer wall of the top of the reflecting plate 4 is provided with more than three through holes.

In this embodiment: the quantity of through-holes on the reflecting plate 4 is consistent with the LED light sources 3, the size of the through-holes is consistent with the size of the top of the concave reflecting cover 6, the reflecting plate 4 can effectively reflect the side plate reflecting plate 2 and all light sources reflected from the outside, and the utilization rate of the light sources is improved.

Specifically, the inner wall of the bottom of the protective shell 1 is fixed with a ventilating fan 8 through screws.

In this embodiment: the ventilation fan 8 can effectively discharge hot air in the protective shell 1, so that the heat dissipation effect of the equipment is greatly improved.

Specifically, the outer wall of the top of the protective shell 1 is fixed with a diffusion membrane 9 through screws, and the diffusion membrane 9 is made of a polyester film material.

In this embodiment: the diffusion membrane 9 can protect the internal equipment of the LED backlight source, and the diffusion membrane 9 is made of a polyester film material, so that the diffusion membrane has good light transmission, elasticity and toughness.

The utility model discloses a theory of operation and use flow: when the LED backlight source starts to work, the four LED lamps 11 in the LED light source 3 can provide very high brightness, the concave reflecting cover 6 can upwards refract the light source emitted by the LED lamps 11, so that the light source is prevented from being diffused upwards and downwards, the light guide effect and the light condensation performance are improved, when the LED lamps 11 in the LED light source need to be replaced, the top cover 5 can be opened to replace the LED lamps, the interior of the backlight source device can be very conveniently cleaned and maintained, a large amount of heat can be generated when the LED light source 3 works, in order to avoid the excessive heat damaging equipment, the heat conducting plate 10 can well conduct the heat to the heat dissipation supporting columns 7, the heat can be quickly transmitted out of the protective shell 1 through the heat dissipation supporting columns 7, the heat dissipation performance of the device is improved, the side plate reflecting plate 2 can effectively refract the LED light emitted by the LED light source 3, the diffusion of light sources is avoided, the light gathering performance of the device is improved, the number of the through holes in the reflecting plate 4 is consistent with that of the LED light sources 3, the size of the through holes is consistent with that of the top of the concave reflecting cover 6, the reflecting plate 4 can effectively reflect the side plate reflecting plate 2 and all light sources reflected from the outside, the utilization rate of the light sources is improved, the ventilating fan 8 can effectively discharge hot air in the protective shell 1, the heat dissipation effect of equipment is greatly improved, the diffusion membrane 9 can play a role in protecting the internal equipment of the LED backlight source, the diffusion membrane 9 is made of a polyester film material, and has good light transmittance, elasticity and toughness.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An LED backlight with high light concentration is characterized in that: including protective housing (1), protective housing (1) top outer wall is fixed with top cap (5) through the hinge, and protective housing (1) bottom inner wall welding has heat-transfer device, and heat-transfer device top outer wall is fixed with LED light source (3) more than three respectively through the screw thread, and LED light source (3) are including four LED lamps (11) and one concave type bowl (6), on concave type bowl (6) bottom outer wall was fixed in heat-transfer device top outer wall through the screw thread, four LED lamps (11) were fixed in on concave type bowl (6) bottom inner wall through the screw thread respectively.

2. The LED backlight with concentrating high brightness as claimed in claim 1, wherein: the heat conduction device comprises a heat dissipation support column (7) and a heat conduction plate (10), the outer wall of the bottom of the heat dissipation support column (7) is welded on the inner wall of the bottom of the protective shell (1), and the outer wall of the bottom of the heat conduction plate (10) is welded on the outer wall of the top of the heat dissipation support column (7).

3. The LED backlight with concentrating high brightness as claimed in claim 1, wherein: the inner wall of the protective shell (1) is welded with a side plate reflecting plate (2), and the side plate reflecting plate (2) is made of smooth light-reflecting materials.

4. The LED backlight with concentrating high brightness as claimed in claim 3, wherein: the outer wall of the bottom of the side plate reflecting plate (2) is welded with a reflecting plate (4), and the outer wall of the top of the reflecting plate (4) is provided with more than three through holes.

5. The LED backlight with concentrating high brightness as claimed in claim 1, wherein: the inner wall of the bottom of the protective shell (1) is fixed with a ventilating fan (8) through screws.

6. The LED backlight with concentrating high brightness as claimed in claim 1, wherein: the outer wall of the top of the protective shell (1) is fixed with a diffusion membrane (9) through screws, and the diffusion membrane (9) is made of a polyester film material.