CN220820433U

CN220820433U - LED backlight source capable of directionally condensing light

Info

Publication number: CN220820433U
Application number: CN202322574185.4U
Authority: CN
Inventors: 霍玉龙; 张华林
Original assignee: Shenzhen Bochuangda Optoelectronic Co ltd
Current assignee: Shenzhen Bochuangda Optoelectronic Co ltd
Priority date: 2023-09-21
Filing date: 2023-09-21
Publication date: 2024-04-19
Anticipated expiration: 2033-09-21

Abstract

The utility model discloses an LED backlight source capable of directionally concentrating light, which belongs to the technical field of LED backlight sources and comprises a lap joint groove, a dimming structure is slidably connected in the lap joint groove, a second condenser is arranged in the dimming structure, a diffusion plate is fixedly connected to the inner wall of the upper end of the backlight source shell, a dustproof lens is fixedly connected to the upper end of the backlight source shell and is positioned at the upper end of the diffusion plate, a connecting plate is fixedly connected to the inner part of the backlight source shell, a first condenser is fixedly connected to the upper end of the connecting plate, a filter and a heat conducting plate are fixedly connected to the middle part of the inner end of the connecting plate, and the heat conducting plate is positioned below the filter.

Description

LED backlight source capable of directionally condensing light

Technical Field

The utility model relates to the technical field of LED backlights, in particular to an LED backlight capable of directionally condensing light.

Background

LED backlight means that LEDs (light emitting diodes) are used as backlight sources for liquid crystal display panels. Compared with the traditional CCFL (cold cathode tube) backlight source, the LED has the characteristics of low power consumption, low heat productivity, high brightness, long service life and the like, and is hopeful to thoroughly replace the traditional backlight system in recent years.

Chinese patent grant bulletin number: the invention provides CN112735260A, this scheme is rotated through the threaded rod of slide mechanism, can drive clean slide and be located protection lens upper end and slide, and can drive clean board that cleans the mechanism and be located protection lens surface and slide, promote clean board back and forth through the roof simultaneously, make clean brush can fully clean protection lens surface, effectually guarantee protection lens surface clean, avoid protection lens surface dust to pile up, can not get timely cleanness, finally cause the condition that light received the shelter from, the invention promotes the sliding of two slide plates of link gear through clean slide, can drive first gear rotation, thereby can drive the baffle of ash discharging mechanism and be located the ash hole and upwards slide, can in time discharge the dust of protection lens surface clearance department, effectually avoided when cleaning protection lens, because protection lens periphery exists the sideboard, the condition that the dust is difficult to clear out from protection lens and sideboard's dead angle department, but the light of this scheme light source is too divergent, it is difficult to spotlight.

Therefore, an LED backlight capable of directionally condensing light is proposed to solve the above problems.

Disclosure of utility model

1. Technical problem to be solved

Aiming at the problems in the prior art, the utility model aims to provide an LED backlight source capable of directionally condensing light, which can refract light rays between first condensing lenses arranged in the backlight source, refract the emitted light rays of the light source, direct the light rays upwards, and simultaneously receive and polymerize the light rays refracted by the first condensing lenses through a detachable second condensing lens.

2. Technical proposal

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides a but LED backlight of directional spotlight, lap joint groove has been seted up in the backlight casing, sliding connection has the structure of adjusting luminance in the lap joint groove, install the second spotlight in the structure of adjusting luminance, backlight casing upper end inner wall fixedly connected with diffuser plate, backlight casing upper end fixedly connected with dustproof lens, and dustproof lens is located the diffuser plate upper end, the inside fixedly connected with connecting plate of backlight casing, connecting plate upper end fixedly connected with first spotlight lens, connecting plate inner middle part fixedly connected with filter and heat-conducting plate, and the heat-conducting plate is located the filter below, heat-conducting plate upper end fixedly connected with circuit board, circuit board upper end fixedly connected with a plurality of LED lamp pearls, through the refraction of first spotlight and second spotlight to light, make the photopolymerization that the LED lamp pearl sent.

Further, the structure of adjusting luminance includes lapping plate, a pair of protection lens and sealing baffle, the lapping plate is located backlight housing's outer end, sealing baffle is located the overlap joint inslot, and sealing baffle and lapping plate fixed connection, both ends inner wall about the protection lens fixed connection in sealing baffle, second light focusing mirror fixed connection is between a pair of protection lens, through the overlap joint groove and the structure of adjusting luminance, makes second light focusing mirror easy to assemble and dismantles.

Furthermore, the first condenser lens is consistent with the second condenser lens in specification, the first condenser lens and the second condenser lens are arranged in parallel and in a mirror image mode, and the second condenser lens can fully receive light rays refracted by the first condenser lens through the mirror image arrangement of the first condenser lens and the second condenser lens.

Further, heat-conducting plate lower extreme fixedly connected with heat absorption water tank, the storage water tank is installed to heat absorption water tank below, and storage water tank fixed connection is in the back light source casing inner end bottom, the storage water tank is connected with the heat absorption water tank through the pipe, miniature water pump is installed to the side of storage water tank, and miniature water pump is connected with heat absorption water tank and storage water tank respectively through the pipe, miniature water pump is located back light source casing, through miniature water pump and heat absorption water tank's setting, can make the heat that the light source diverged more easily be shifted, reduces back light source temperature.

Further, the water tank is kept away from miniature water pump's one end fixedly connected with and trades the water mouth, and trades the water mouth and run through connecting plate and backlight casing respectively to extend to backlight casing outer end, trade the water mouth and keep away from the one end of water tank and install sealed end cap, through trading the water mouth, can change the water in the water tank.

Further, the sealing baffle is provided with an anti-slip pad at the joint of the lap joint groove, and the friction force is increased by sleeving the anti-slip pad, so that the dimming structure cannot accidentally slip out during use.

Furthermore, the dustproof lens and the backlight source shell are fixedly connected in a threaded mode, and the dustproof lens can be replaced conveniently through threaded connection.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that:

(1) The refraction to light between the first condensing lens that this scheme set up in through the backlight, it can realize the light polymerization to the effluvium of light source, makes light direct injection upwards, and the light that the second condensing lens through detachable received first condensing lens refraction and polymerization.

(2) This scheme structure of adjusting luminance includes lapping plate, a pair of protection lens and sealing baffle, and the lapping plate is located the outer end of backlight casing, and sealing baffle is located the overlap joint inslot, and sealing baffle and lapping plate fixed connection, protection lens fixed connection are in both ends inner wall about the sealing baffle, and second light focusing lens fixed connection is between a pair of protection lens, through the overlap joint groove with adjust luminance the structure, make second light focusing lens easy to assemble and dismantle.

(3) According to the scheme, the first condensing lens and the second condensing lens are identical in specification, the first condensing lens and the second condensing lens are parallel and are arranged in a mirror image mode, and the second condensing lens can fully receive light rays refracted out by the first condensing lens through the mirror image arrangement of the first condensing lens and the second condensing lens.

(4) According to the scheme, the heat-absorbing water tank is fixedly connected to the lower end of the heat-conducting plate, the water storage tank is installed below the heat-absorbing water tank and fixedly connected to the bottom of the inner end of the backlight shell, the water storage tank is connected with the heat-absorbing water tank through the guide pipe, the miniature water pump is installed at the side end of the water storage tank and is connected with the heat-absorbing water tank and the water storage tank through the guide pipe, the miniature water pump is located in the backlight shell, and heat emitted by the light source can be transferred more easily through the arrangement of the miniature water pump and the heat-absorbing water tank, so that the temperature of the backlight source is reduced.

(5) The one end fixedly connected with that miniature water pump was kept away from to this scheme storage water tank trades the water mouth, and trades the water mouth and run through connecting plate and backlight casing respectively to extend to backlight casing outer end, trade the water mouth and keep away from the one end of storage water tank and install sealed end cap, through trading the water mouth, can change the water in the water tank.

(6) The sealing baffle plate and the lap joint groove are provided with the anti-slip pad, and the friction force is increased by sleeving the anti-slip pad, so that the dimming structure cannot accidentally slip out during use.

(7) The dustproof lens and the backlight source shell are fixedly connected through threads by adopting threaded connection, so that the dustproof lens can be replaced conveniently.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic view of the front cross-sectional structure of the present utility model;

FIG. 3 is a schematic view of the partial cross-sectional structure of FIG. 2;

Fig. 4 is a schematic diagram of a front cross-sectional structure of the dimming structure.

The reference numerals in the figures illustrate:

1. A backlight housing; 2. a first condenser; 3. a dimming structure; 31. a lapping plate; 32. protecting the lens; 33. a sealing baffle; 4. a dust-proof lens; 5. a diffusion plate; 6. a lap joint groove; 7. a connecting plate; 8. a heat conductive plate; 9. a second condenser lens; 10. LED lamp beads; 11. a filter lens; 12. a circuit board; 13. a micro water pump; 14. a heat absorbing water tank; 15. a water storage tank; 16. a water exchanging port; 17. sealing the plugs; 18. a catheter.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples:

Referring to fig. 1-2, an overlapping groove 6 is formed in a backlight housing 1, a dimming structure 3 is slidably connected in the overlapping groove 6, a second dimming mirror 9 is installed in the dimming structure 3, a diffusion plate 5 is fixedly connected to the inner wall of the upper end of the backlight housing 1, a dustproof lens 4 is fixedly connected to the upper end of the backlight housing 1, the dustproof lens 4 is located at the upper end of the diffusion plate 5, a connecting plate 7 is fixedly connected to the inside of the backlight housing 1, a first condensing mirror 2 is fixedly connected to the upper end of the connecting plate 7, a filter 11 and a heat conducting plate 8 are fixedly connected to the middle of the inner end of the connecting plate 7, the heat conducting plate 8 is located below the filter 11, a circuit board 12 is fixedly connected to the upper end of the heat conducting plate 8, and a plurality of LED lamp beads 10 are fixedly connected to the upper end of the circuit board 12.

Referring to fig. 2-3, the dimming structure 3 includes a bridging plate 31, a pair of protection lenses 32 and a sealing baffle 33, the bridging plate 31 is located at the outer end of the backlight housing 1, the sealing baffle 33 is located in the bridging groove 6, the sealing baffle 33 is fixedly connected with the bridging plate 31, the protection lenses 32 are fixedly connected to inner walls at the upper end and the lower end of the sealing baffle 33, and the second dimming lens 9 is fixedly connected between the pair of protection lenses 32.

Referring to fig. 2, the first condenser lens 2 and the second condenser lens 9 are identical lenses, and the first condenser lens 2 and the second condenser lens 9 are symmetrically divided.

Referring to fig. 2, a heat absorption water tank 14 is fixedly connected to the lower end of a heat conduction plate 8, a water storage tank 15 is installed below the heat absorption water tank 14, the water storage tank 15 is fixedly connected to the bottom of the inner end of a backlight source housing 1, the water storage tank 15 is connected with the heat absorption water tank 14 through a conduit 18, a micro water pump 13 is installed at the side end of the water storage tank 15, the micro water pump 13 is respectively connected with the heat absorption water tank 14 and the water storage tank 15 through the conduit 18, the micro water pump 13 is located in the backlight source housing 1, and the heat is absorbed through the heat conduction plate 8, conducted onto the heat absorption water tank 14, absorbed by water, and converted into water in the heat absorption water tank 14 and the water storage tank 15 through the micro water pump 13.

Referring to fig. 2-3, a water exchanging port 16 is fixedly connected to one end of the water storage tank 15 far away from the micro water pump 13, the water exchanging port 16 penetrates through the connecting plate 7 and the backlight source housing 1 respectively and extends to the outer end of the backlight source housing 1, a sealing plug 17 is installed at one end of the water exchanging port 16 far away from the water storage tank 15, and water in the water storage tank can be exchanged through the water exchanging port 16.

Referring to fig. 4, an anti-slip pad is sleeved on one end of the sealing baffle 33 near the opening of the lap joint groove 6, and the dimming structure 3 can not slide off from the lap joint groove 6 in the use process by the arrangement of the anti-slip pad.

Referring to fig. 1, the dustproof lens 4 and the backlight housing 1 are fixedly connected by screw threads, and the dustproof lens 4 can be replaced conveniently by screw threads.

Working principle: when the heat absorption water tank is used, the light adjusting structure 3 is installed or detached according to the requirement, so that light can be directly emitted or polymerized, and the micro water pump 13 can be turned on after a certain period of use, so that hot water in the heat absorption water tank 14 is changed into cold water in the water storage tank 15.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims

1. An LED backlight capable of directionally condensing light, comprising a backlight shell (1), and is characterized in that: the utility model discloses a backlight shell, including backlight shell (1), overlap joint groove (6) have been seted up in the backlight shell (1), sliding connection has structure (3) of adjusting luminance in overlap joint groove (6), install second light-focusing mirror (9) in structure (3) of adjusting luminance, backlight shell (1) upper end inner wall fixedly connected with diffuser plate (5), backlight shell (1) upper end fixedly connected with dustproof lens (4), and dustproof lens (4) are located diffuser plate (5) upper end, backlight shell (1) inside fixedly connected with connecting plate (7), connecting plate (7) upper end fixedly connected with first condensing lens (2), connecting plate (7) inner middle part fixedly connected with filter (11) and heat-conducting plate (8), and heat-conducting plate (8) are located filter (11) below, heat-conducting plate (8) upper end fixedly connected with circuit board (12), circuit board (12) upper end fixedly connected with a plurality of LED lamp pearls (10).

2. A directionally focused LED backlight as recited in claim 1, wherein: the dimming structure (3) comprises a lapping plate (31), a pair of protection lenses (32) and a sealing baffle (33), wherein the lapping plate (31) is positioned at the outer end of the backlight source shell (1), the sealing baffle (33) is positioned in the lapping groove (6), the sealing baffle (33) is fixedly connected with the lapping plate (31), the protection lenses (32) are fixedly connected to the inner walls of the upper end and the lower end of the sealing baffle (33), and the second dimming lens (9) is fixedly connected between the pair of protection lenses (32).

3. A directionally focused LED backlight as recited in claim 1, wherein: the first condenser lens (2) and the second condenser lens (9) are identical lenses, and the first condenser lens (2) and the second condenser lens (9) are symmetrically distributed.

4. A directionally focused LED backlight as recited in claim 1, wherein: the utility model discloses a backlight source shell, including heat conduction board (8), heat absorption water tank (14) is installed to heat conduction board (8) lower extreme fixedly connected with, storage water tank (15) are installed to heat absorption water tank (14) below, and storage water tank (15) fixed connection is in the bottom of the inner of backlight source shell (1), storage water tank (15) are connected with heat absorption water tank (14) through pipe (18), miniature water pump (13) are installed to the side of storage water tank (15), and miniature water pump (13) are connected with heat absorption water tank (14) and storage water tank (15) respectively through pipe (18), miniature water pump (13) are located backlight source shell (1).

5. A directionally focused LED backlight as recited in claim 4, wherein: the one end fixedly connected with that miniature water pump (13) were kept away from to storage water tank (15) trades water mouth (16), and trades water mouth (16) and run through connecting plate (7) and backlight casing (1) respectively to extend to the outer end of backlight casing (1), trade water mouth (16) and keep away from the one end of storage water tank (15) and install sealed end cap (17).

6. A directionally focused LED backlight as recited in claim 2, wherein: and an anti-slip pad is arranged at the joint of the sealing baffle plate (33) and the lap joint groove (6).

7. A directionally focused LED backlight as recited in claim 1, wherein: the dustproof lens (4) is fixedly connected with the backlight source shell (1) in a threaded mode.