CN212623479U

CN212623479U - Distance-controllable lateral-entering type LED backlight module

Info

Publication number: CN212623479U
Application number: CN202021683886.1U
Authority: CN
Inventors: 彭林
Original assignee: Hubei Honghan Precision Optical Technology Co ltd
Current assignee: Hubei Honghan Precision Optical Technology Co ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2021-02-26
Anticipated expiration: 2030-08-13

Abstract

The utility model relates to a LED backlight unit technical field, and a apart from controllable side income formula LED backlight unit is disclosed, including reflecting the chamber, the base plate, the LED light source, light guide plate and buckle all set up with the mutual joint in reflection chamber, the output electric connection of LED light source and light guide plate, the lower extreme fixedly connected with slider of base plate, and reflect the lower lateral wall left end in chamber seted up with slider assorted spout, the left side wall fixedly connected with elastic telescopic rod of base plate, elastic telescopic rod's expansion end fixedly connected with installation piece, the left side wall in reflection chamber seted up with installation piece assorted mounting groove, the cavity has all been seted up to both sides about the inside of installation piece. The utility model discloses can avoid the base plate to be extruded the dislocation by the barn door, influence follow-up illumination, and the installation is stable, and it is convenient simple to dismantle, and it is also very convenient to the dismantlement separation of wire simultaneously, and the stability of wire grafting is high.

Description

Distance-controllable lateral-entering type LED backlight module

Technical Field

The utility model relates to a LED backlight unit technical field especially relates to a apart from controllable side income formula LED backlight unit.

Background

The backlight module is one of the key components of the liquid crystal display panel, and has the functions of supplying sufficient light source with uniform brightness and distribution to normally display images.

Through retrieval, chinese patent publication No. CN208521027U discloses a distance-controllable lateral-in LED backlight module, which sequentially comprises a reflection cavity, a reflection sheet, a light guide plate, a prism sheet, a diffusion sheet, and a pinch plate from bottom to top, wherein the reflection cavity is clamped with a panel, the pinch plate is provided with heat dissipation fins, a plurality of reflection bumps are arranged in an array on the reflection sheet, a substrate and an LED light source are arranged at a position corresponding to a light-emitting surface on one side of a short side of the light guide plate, and the light guide plate is provided with a lateral clamping plate and a plurality of light source clamping grooves corresponding to the; it is adjusted the position of base plate through the elasticity of adjusting the shell fragment, makes between light guide plate and the LED light source apart from keeping the default, and the base plate is connected with adjusting the shell fragment through heat-conducting adhesive layer, and this kind of connected mode is stable inadequately, when the light guide plate inflation extrudees the base plate, easily makes base plate and regulation shell fragment dislocation to lead to the crooked certain angle of LED light source, influence follow-up light source and shine, the base plate need film heat-conducting adhesive layer again when dismantling the maintenance simultaneously, and is comparatively loaded down with trivial details.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art base plate and being connected through heat-conducting glue layer and regulation shell fragment, this kind of connected mode is stable inadequately, when the light guide plate inflation extrudees the base plate, easily makes the base plate and adjusts the shell fragment dislocation to lead to the crooked certain angle of LED light source, influence follow-up light source and shine, the base plate is when dismantling the maintenance simultaneously, need scribble the heat-conducting glue layer again, comparatively loaded down with trivial details problem, and the lateral income formula LED backlight unit of a distance controllable who proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a distance controllable side-in type LED backlight module comprises a reflection cavity, a substrate, an LED light source, a light guide plate and a pinch plate, wherein the light guide plate and the pinch plate are mutually clamped with the reflection cavity, the LED light source is electrically connected with the output end of the light guide plate, the lower end of the substrate is fixedly connected with a slide block, the left end of the lower side wall of the reflection cavity is provided with a slide groove matched with the slide block, the left side wall of the substrate is fixedly connected with an elastic telescopic rod, the movable end of the elastic telescopic rod is fixedly connected with an installation block, the left side wall of the reflection cavity is provided with an installation groove matched with the installation block, the upper side and the lower side of the interior of the installation block are both provided with cavities, the side walls on the opposite sides of the two cavities are both connected with limit blocks in a sliding manner through holes, the upper side wall and the, and the right side walls of the two cavities are respectively connected with the side walls of the two pressing plates in a sliding manner through strip-shaped holes, and first springs are fixedly arranged between the side walls of one side of the two pressing plates opposite to each other and the side walls of one side of the two cavities opposite to each other.

Preferably, the substrate is electrically connected with a plug through a wire, the lower end of the left side wall of the reflection cavity is fixedly connected with a socket, the plug is electrically connected with the socket in an inserting mode, and the plug is connected with the anti-falling mechanism and connected with the socket through the anti-falling mechanism.

Preferably, anti-disengaging mechanism includes two anti-disengaging plates and two archs, two protruding one end in opposite directions is respectively with the lateral wall left end fixed connection of two anti-disengaging plates opposite side, the equal fixed connection in upper and lower both ends left side and the connecting block of plug, and the lateral wall of two connecting blocks all rotates with the lateral wall right-hand member of two anti-disengaging plates respectively through the pin rod and is connected, two all fixed being equipped with the second spring between the lateral wall of anti-disengaging plate opposite side and the upper and lower lateral wall of plug, the slot that matches with the anti-disengaging plate is all seted up at both ends about the right side wall of socket, and the lateral wall left end of two opposite sides of slot all seted up with protruding assorted tongue.

Preferably, the upper end of the buckle plate is provided with a groove, and a plurality of radiating fins which are uniformly distributed are fixedly arranged inside the groove.

Preferably, a plurality of radiating grooves which are uniformly distributed are formed in the left side wall and the right side wall of each radiating fin.

Preferably, the length of each of the two strip-shaped holes is greater than the depth of the two limiting grooves.

Compared with the prior art, the utility model provides a apart from controllable side income formula LED backlight unit possesses following beneficial effect:

1. this apart from controllable side income formula LED backlight unit, through the elasticity telescopic link that is equipped with, take place the displacement back at light guide plate inflation extrusion base plate, after the light guide plate cooling, can make the base plate reset fast and keep predetermineeing the distance, and light guide plate extrusion base plate can not make the base plate take place the phenomenon of crooked dislocation, through the installation piece that is equipped with, two stoppers, two cooperate each other of pressing down board and two first springs, can be convenient for people with base plate and transmission chamber separation, and the installation dismantlement is convenient simple, improve the stability of substrate mounting.

2. This apart from controllable side income formula LED backlight unit, through mutually supporting of the plug that is equipped with and socket, can be convenient for dismantle the separation fast with base plate power wire, improve the convenience of dismantling the separation to the wire, through the anti-disengaging mechanism who is equipped with, can improve the steadiness that plug and socket are connected, avoid taking place the obscission.

The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses can avoid the base plate to be extruded the dislocation by the barn door, influence follow-up illumination, and the installation is stable, and it is convenient simple to dismantle, and it is also very convenient to the dismantlement separation of wire simultaneously, and the stability of wire grafting is high.

Drawings

Fig. 1 is a schematic structural diagram of a distance-controllable lateral-in LED backlight module according to the present invention;

FIG. 2 is an enlarged view of the portion A in FIG. 1;

fig. 3 is an enlarged view of a portion B of fig. 1.

In the figure: the LED lamp comprises a reflection cavity 1, a substrate 2, an LED light source 3, a light guide plate 4, a pinch plate 5, an elastic telescopic rod 6, a mounting block 7, a limiting block 8, a pressing plate 9, a first spring 10, a plug 11, a socket 12, an anti-falling plate 13, a bulge 14, a connecting block 15, a second spring 16 and a radiating fin 17.

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.

Referring to fig. 1-3, a distance controllable side-in type LED backlight module comprises a reflection cavity 1, a substrate 2, an LED light source 3, a light guide plate 4 and a pinch plate 5, wherein the light guide plate 4 and the pinch plate 5 are clamped with the reflection cavity, the LED light source 3 is electrically connected with the output end of the light guide plate 4, the lower end of the substrate 2 is fixedly connected with a slide block, the left end of the lower side wall of the reflection cavity is provided with a slide groove matched with the slide block, the left side wall of the substrate 2 is fixedly connected with an elastic telescopic rod 6, the movable end of the elastic telescopic rod 6 is fixedly connected with an installation block 7, the left side wall of the reflection cavity is provided with an installation groove matched with the installation block 7, the upper side and the lower side of the interior of the installation block 7 are provided with cavities, the side walls of the opposite sides of the two, the equal fixedly connected with in both ends that two stopper 8 are in opposite directions presses pressure plate 9, and the right side wall of two cavitys all through bar hole respectively with two lateral wall sliding connection who presses pressure plate 9, press and all fixedly be equipped with first spring 10 between the lateral wall of lateral wall and two cavitys one side in opposite directions of pressure plate 9.

Base plate 2 has plug 11 through wire electric connection, and left side wall lower extreme fixedly connected with socket 12 in reflection chamber, plug 11 and socket 12 electric property are pegged graft, and plug 11 is connected with anti-disengaging mechanism and is connected with socket 12 through anti-disengaging mechanism, when needing to dismantle and change base plate 2, directly extracts plug 11 from socket 12 and can accomplish the separation of wire, further improves the convenience that base plate 2 dismantled.

The anti-falling mechanism comprises two anti-falling plates 13 and two bulges 14, wherein the opposite ends of the two bulges 14 are respectively fixedly connected with the left ends of the side walls on the opposite sides of the two anti-falling plates 13, the left sides of the upper and lower ends of the plug 11 are respectively fixedly connected with the connecting blocks 15, the side walls of the two connecting blocks 15 are respectively rotatably connected with the right ends of the side walls of the two anti-falling plates 13 through pin rods, second springs 16 are respectively fixedly arranged between the side walls on the opposite sides of the two anti-falling plates 13 and the upper and lower side walls of the plug 11, the upper and lower ends of the right side wall of the socket 12 are respectively provided with slots matched with the anti-falling plates 13, the left ends of the side walls on the opposite sides of the two slots are respectively provided with convex grooves matched with the bulges 14, when the anti-falling mechanism is installed, the plug 11 is inserted in front of the socket 12, the two, under the action of the two second springs 16, the two protrusions 14 can enter the two convex grooves, so that the stability of the connection between the plug 11 and the socket 12 can be improved.

The upper end of the pinch plate 5 is provided with a groove, and a plurality of radiating fins 17 which are uniformly distributed are fixedly arranged inside the groove, so that heat generated when the substrate 2 and the LED light source work can be timely radiated out.

A plurality of evenly distributed's radiating grooves are all seted up to the lateral wall about a plurality of fin 17, can increase the heat radiating area of a plurality of fin 17 to can improve the radiating efficiency.

The length in two bar holes all is greater than the degree of depth of two spacing grooves, when guaranteeing to press two pressure pads 9, can make two stopper 8 break away from two spacing grooves.

In the utility model, when in use, after the light guide plate 4 expands and extrudes the substrate 2 to displace, the substrate 2 can extrude the elastic telescopic rod 6, after the light guide plate 4 is cooled and reset, the substrate 2 can be reset quickly and keep a preset distance under the action of the elastic telescopic rod 6, and the light guide plate 4 can extrude the substrate 2 without causing the deflection and dislocation of the substrate 2, when in disassembly, the two pressing plates 9 are pressed by the installation block 7, the two limiting blocks 8, the two pressing plates 9 and the two first springs 10, the two limiting blocks 8 move oppositely and are separated from the limiting grooves of the corresponding positions, the substrate can be separated from the launching cavity by pulling out the installation block 7, when in installation, the two pressing plates 9 are pressed equally, when the installation block 7 is inserted into the installation groove, the plates 9 are loosened, under the action of the two first springs 10, can make two stopper 7 get into two spacing inslots to can accomplish the installation fixed, the installation is dismantled conveniently simply, improves the stability of base plate 2 installation.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A distance controllable lateral-entering type LED backlight module comprises a reflection cavity (1), a substrate (2), an LED light source (3), a light guide plate (4) and a pinch plate (5), and is characterized in that the light guide plate (4) and the pinch plate (5) are clamped with the reflection cavity, the LED light source (3) is electrically connected with the output end of the light guide plate (4), the lower end of the substrate (2) is fixedly connected with a slide block, the left end of the lower side wall of the reflection cavity is provided with a slide groove matched with the slide block, the left side wall of the substrate (2) is fixedly connected with an elastic telescopic rod (6), the movable end of the elastic telescopic rod (6) is fixedly connected with a mounting block (7), the left side wall of the reflection cavity is provided with a mounting groove matched with the mounting block (7), the upper side and the lower side of the interior of the mounting block (7) are both provided with cavities, and the side walls of the opposite sides, the upper and lower lateral wall of mounting groove all seted up with stopper (8) assorted spacing groove, two the equal fixedly connected with in both ends that stopper (8) are in opposite directions presses clamp plate (9), and the right side wall of two cavitys all through the bar hole respectively with two lateral wall sliding connection who presses clamp plate (9), two it all is fixed between the lateral wall of one side in opposite directions and the lateral wall of one side in opposite directions of two cavitys to be equipped with first spring (10) to press clamp plate (9).

2. The distance-controllable lateral LED backlight module as claimed in claim 1, wherein the substrate (2) is electrically connected to a plug (11) through a wire, a socket (12) is fixedly connected to a lower end of a left sidewall of the reflective cavity, the plug (11) is electrically connected to the socket (12), and the plug (11) is connected to an anti-falling mechanism and connected to the socket (12) through the anti-falling mechanism.

3. The distance controllable lateral LED backlight module of claim 2, it is characterized in that the anti-falling mechanism comprises two anti-falling plates (13) and two bulges (14), one ends of the two bulges (14) opposite to each other are respectively fixedly connected with the left ends of the side walls on the opposite sides of the two anti-falling plates (13), the left sides of the upper end and the lower end of the plug (11) are fixedly connected with a connecting block (15), the side walls of the two connecting blocks (15) are respectively and rotatably connected with the right ends of the side walls of the two anti-falling plates (13) through pin rods, second springs (16) are respectively and fixedly arranged between the side wall of one opposite side of the two anti-falling plates (13) and the upper side wall and the lower side wall of the plug (11), the upper end and the lower end of the right side wall of the socket (12) are both provided with slots matched with the anti-falling plate (13), and the left ends of the side walls at the opposite sides of the two slots are provided with convex grooves matched with the bulges (14).

4. The distance-controllable side-in type LED backlight module as claimed in claim 1, wherein the upper end of the pinch plate (5) is provided with a groove, and a plurality of uniformly distributed heat dissipation fins (17) are fixed inside the groove.

5. The distance controllable lateral type LED backlight module of claim 4, wherein the left and right side walls of the plurality of heat dissipation fins (17) are provided with a plurality of uniformly distributed heat dissipation grooves.

6. The distance-controllable side-in type LED backlight module as recited in claim 1, wherein the length of each of the two bar-shaped holes is greater than the depth of each of the two limiting grooves.