CN216083346U

CN216083346U - Novel backlight LED module

Info

Publication number: CN216083346U
Application number: CN202122347845.6U
Authority: CN
Inventors: 张坤强; 肖敦武; 彭超伟
Original assignee: Shenzhen Punai Technology Co ltd
Current assignee: Shenzhen Punai Technology Co ltd
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-03-18
Anticipated expiration: 2031-09-27

Abstract

The utility model relates to the technical field of backlight modules, and particularly discloses a novel backlight LED module, which comprises a frame, a light guide plate arranged in the frame and a heat dissipation assembly fixedly connected to the bottom of the frame, wherein the heat dissipation assembly comprises a plurality of heat dissipation substrates which are mutually clamped, a mounting seat is fixedly connected to the upper surface of each heat dissipation substrate, the heat dissipation substrates and the mounting seat jointly form slots positioned on two sides of the mounting seat, the slots of adjacent heat dissipation substrates are matched to form inverted T-shaped grooves, a reflector fixedly connected with the light guide plate is clamped between adjacent mounting seats, a heat dissipation plate capable of dissipating heat of the reflector is fixedly connected to the lower surface of the reflector, a plurality of heat dissipation strips are arranged between the heat dissipation plate and the heat dissipation substrates, the heat dissipation substrates are respectively provided with a plurality of air holes, and the lower surfaces of the heat dissipation substrates are respectively provided with a plurality of heat dissipation fins, so that the problem that poor heat dissipation of the traditional backlight LED module easily causes over-aging of electronic components is solved, the life is shortened.

Description

Novel backlight LED module

Technical Field

The application relates to the technical field of backlight modules, and particularly discloses a novel backlight LED module.

Background

With the development of electronic technology, the application of electronic devices is becoming wider and wider, and currently, in the development process of intelligent devices, the development is continuously towards the direction of thinness, the display screen is enlarged, the brightness of a light source is inevitably increased, a liquid crystal panel does not emit light, and images are required to be normally displayed by means of the light source provided by a backlight module, so that the backlight module becomes one of key components of a liquid crystal display device, light rays emitted by LED lamp beads enter a light guide plate from a light inlet surface at one side of the light guide plate, are emitted from a light outlet surface of the light guide plate after being reflected and diffused, and then are provided for the liquid crystal panel by an optical film set to form a surface light source, however, the increase of the brightness of the light source requires more LED lamp beads, the increase of the number of the LED lamp beads can cause the problem of heat dissipation, the phenomenon of scalding can occur after the use for a longer time, and the problems of too fast aging and short service life of electronic components can be caused, therefore, the present invention provides a novel backlight LED module to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems that the poor heat dissipation of the traditional backlight LED module is easy to cause the over-rapid aging of electronic components and short service life.

In order to achieve the above purpose, the basic scheme of the utility model provides a novel backlight LED module, which comprises a frame, a light guide plate arranged in the frame and a heat dissipation assembly fixedly connected to the bottom of the frame, wherein a plurality of light emitting plates are symmetrically arranged on the inner side of the frame, a plurality of LED lamp beads are uniformly distributed on the light emitting plates, the heat dissipation assembly comprises a plurality of heat dissipation substrates clamped with each other, mounting seats are fixedly connected to the upper surfaces of the heat dissipation substrates, reflectors are clamped between adjacent mounting seats, heat dissipation plates capable of dissipating heat of the reflectors are fixedly connected to the lower surfaces of the reflectors, a plurality of heat dissipation strips are arranged between the heat dissipation plates and the heat dissipation substrates, the heat dissipation substrates are provided with a plurality of diffusion type air holes, and the lower surfaces of the heat dissipation substrates are provided with a plurality of heat dissipation fins.

The principle and effect of this basic scheme lie in:

1. the utility model arranges the heat radiation base plate and the installation base to form the slots at two sides of the installation base, which is used for clamping the reflector, the reflector is convenient to replace when being damaged by impact, and the heat radiation plate is convenient to be arranged in the T-shaped slot to conduct heat radiation to the generated heat.

2. According to the utility model, the heat dissipation strips are arranged, the heat dissipation strips can support the heat dissipation plate and simultaneously have an abutting effect on the light reflection plate, unstable installation of the light reflection plate caused by clearance fit between the light reflection plate and the installation seat is avoided, the heat dissipation strips are installed between the heat dissipation plate and the heat dissipation substrate, a cavity is formed between the heat dissipation plate and the heat dissipation base, heat can be conducted through the cavity, the heat on the heat dissipation plate is absorbed by the heat dissipation strips through conduction, the heat dissipation plate can be directly contacted with air for convection heat dissipation, so that the convection coefficient of the heat dissipation plate is improved, and further the heat dissipation capability of the backlight LED backlight module is improved.

3. The utility model is provided with the heat dissipation fins, and the air holes are formed in the heat dissipation substrate, so that the air convection coefficient can be further improved, the air circulation is convenient, after the heat dissipation plate absorbs heat, the heat is dissipated in a convection mode by increasing the heat dissipation fins, and the deformation and the warping of the light reflection plate and the light guide plate due to overhigh ambient temperature are avoided.

Compared with the prior art, the utility model has the advantages that the heat dissipation substrate, the heat dissipation strip, the mounting seat, the heat dissipation fins and the like are arranged, the heat dissipation strip enables a cavity to be formed between the heat dissipation plate and the heat dissipation base, the ventilation and heat dissipation are convenient, the plurality of diffusion type air holes are formed in the heat dissipation substrate to improve the convection coefficient of the heat dissipation plate, the heat generated by the backlight LED module in work can be effectively transferred and dissipated, and the problems that the electronic components are aged too fast and the service life is shortened due to poor heat dissipation of the traditional backlight LED module are solved.

Furthermore, one end of the radiating substrate is folded to form a clamping groove, and the other end of the radiating substrate is bent downwards to form a connecting part which can be clamped with the clamping groove. Through carrying out mutual joint with the form of block with the heat dissipation base plate, make the size of heat dissipation module can make up wantonly, easy to assemble and dismantlement, the change of the module size of being convenient for.

Furthermore, slots are formed between the two sides of the mounting seat and the heat dissipation substrates, and the slots of the adjacent heat dissipation substrates are matched to form an inverted T-shaped slot which can be clamped by the reflector. An inverted T-shaped groove is formed through the slot, so that the reflector can be conveniently installed, and the supporting and protecting effects on the reflector are achieved.

Further, one side of the light-emitting plate, which is far away from the lamp beads, is provided with a convex block, and dovetail grooves matched with the convex block are symmetrically arranged on the inner side of the frame. Through fixing the luminescent plate on the lug, then lug and the mutual block of dovetail, the luminescent plate can remove in the dovetail when the installation, the installation of being convenient for, even also be convenient for change when the luminescent plate destroys, the practicality is strong.

Further, a lens plate with a curved surface structure is arranged between the light guide plate and the light reflecting plate. The lens plate adopts a curved surface structure, so that a point light source diffused by the LED can form a surface light source, the light leakage condition is further reduced, and the light utilization rate is improved.

Furthermore, an elastic extrusion block is arranged between the adjacent light-emitting plates. The elasticity extrusion piece can cushion the absorbing effect to the vibrations that produce, sets up the condition that the light-emitting plate can avoid taking place lateral shifting simultaneously by the elasticity piece, plays the effect of fastening to the light-emitting plate, avoids the light-emitting plate to take place to rock, guarantees the luminous effect of light-emitting plate to the light guide plate.

Furthermore, a plurality of heat dissipation holes are formed in the mounting seat. The radiating holes are arranged to accelerate the radiating function and enhance the radiating performance.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic view illustrating a partial structure of a novel backlight LED module according to an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a novel backlight LED module according to an embodiment of the present disclosure;

fig. 3 shows a schematic diagram of a part a of a novel backlight LED module according to an embodiment of the present application;

fig. 4 shows a schematic structural diagram of a heat dissipation substrate of a novel backlight LED module according to an embodiment of the present application.

Detailed Description

To further illustrate the technical means and effects of the present invention for achieving the intended purpose of the utility model, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Reference numerals in the drawings of the specification include: the light guide plate comprises a heat dissipation substrate 1, a connecting part 101, heat dissipation fins 102, a slot 103, a frame 2, a light guide plate 3, a reflector 4, a heat dissipation plate 5, a mounting seat 6, a heat dissipation strip 7, a lens plate 8, a dovetail groove 9, a bump 10, a light emitting plate 11 and an elastic extrusion block 12.

A novel backlight LED module, the embodiment is shown in figure 1: the LED light source comprises a frame 2, a light guide plate 3 arranged in the frame 2 and a heat dissipation assembly fixedly connected to the bottom of the frame 2, wherein a plurality of light emitting plates 11 are symmetrically arranged on the inner side of the frame 2, a plurality of LED lamp beads are uniformly distributed on the light emitting plates 11, the light emitting surfaces of the LED lamp beads face the side surface of the light guide plate 3, the light guide plate 3 is subjected to a dispersing effect to achieve the purposes of dispersing light and mixing light, and better optical uniformity is achieved, a convex block 10 is fixedly connected to one side of each light emitting plate 11 away from the LED lamp beads, dovetail grooves 9 matched with the convex blocks 10 are symmetrically arranged on the inner side of the frame 2, elastic extrusion blocks 12 are arranged between adjacent light emitting plates 11, the heat dissipation assembly comprises six heat dissipation substrates 1 which are mutually clamped, the left ends of the heat dissipation substrates 1 are folded to form clamping grooves, the right ends of the heat dissipation substrates 1 are downwards bent to form connecting parts 101 which can be mutually clamped with the clamping grooves, a mounting seat 6 is fixedly connected to the upper surface of the heat dissipation substrates 1, slots 103 are jointly formed between the two sides of the mounting seat 6 and the heat dissipation substrates 1, slot 103 cooperation of adjacent radiating basal plate 1 forms the shape of falling T-slot that can hold 4 cards of reflector panel and go into, equal joint has reflector panel 4 between the adjacent mount pad 6, all be equipped with the lens board 8 of curved surface structure between light guide plate 3 and the reflector panel 4, the lower fixed surface of reflector panel 4 is connected with and can carries out radiating heating panel 5 to reflector panel 4, be equipped with a plurality of heat dissipation strip 7 between heating panel 5 and the radiating basal plate 1, all open a plurality of diffusion formula bleeder vents on the radiating basal plate 1, the radiating basal plate 1 lower surface all is equipped with a plurality of heat radiation fins 102.

In the implementation process of the utility model, the bumps 10 on the light-emitting boards 11 are arranged in the dovetail grooves 9 on the two sides of the frame 2, the light-emitting boards 11 can move in the dovetail grooves 9 during installation, the installation is convenient, the replacement is convenient even when the light-emitting boards 11 are damaged, the adjacent light-emitting boards 11 are connected through the elastic extrusion blocks 12, the elastic extrusion blocks 12 can buffer and absorb shock for the generated vibration, meanwhile, the elastic blocks can prevent the light-emitting boards 11 from moving transversely and play a role in fastening the light-emitting boards 11, the light-emitting boards 11 are prevented from shaking, the light-emitting effect of the light-emitting boards 11 on the light-guiding plate 3 is ensured, then the heat-radiating base plates 1 are mutually clamped in a clamping mode, the size of the heat-radiating module can be combined at will, the installation and the disassembly are convenient, the size of the module can be changed conveniently, the two sides of the installation base 6 and the heat-radiating base plates 1 form the slots 103 together, the slots 103 of the adjacent heat dissipation substrates 1 are matched to form an inverted T-shaped groove, so that the installation of the reflector 4 is facilitated, the supporting and protecting effects on the reflector 4 are achieved, the lens plate 8 adopts a curved surface structure, a point light source emitted by an LED can form a surface light source, the light leakage condition is further reduced, the utilization rate of light is improved, the heat dissipation strips 7 are arranged between the heat dissipation plate 5 and the heat dissipation substrate 1, a cavity is formed between the heat dissipation plate 5 and a heat dissipation base, heat can be conducted through the cavity, the heat dissipation strips 7 absorb the heat on the heat dissipation plate 5 through conduction, the heat dissipation plate 5 can be directly contacted with air for convection heat dissipation, the convection coefficient of the heat dissipation plate 5 is improved, the heat dissipation strips 7 for improving the heat dissipation capacity of the backlight LED backlight module can support the heat dissipation plate 5 and simultaneously achieve the abutting effect on the reflector 4, and the instable installation of the reflector 4 caused by the clearance fit between the reflector 4 and the mounting base 6 is avoided, through installing heat dissipation strip 7 between heating panel 5 and radiating basal plate 1, make to form the cavity between heating panel 5 and the heat dissipation base, the heat can be conducted through the cavity, heat dissipation strip 7 absorbs the heat on heating panel 5 through the conduction, make heating panel 5 can directly carry out the convection current heat dissipation with the air contact, in order to improve heating panel 5's convection current coefficient, and then improve backlight LED backlight unit's heat-sinking capability, through it has diffusion formula bleeder vent to open on radiating basal plate 1, can further improve the convection current coefficient of air, the circulation of air of being convenient for, after heating panel 5 absorbed the heat, through increasing radiating fin 102 with the form of convection current with giving off the heat, avoid reflector panel 4 and light guide plate 3 because the high warp of ambient temperature, heat dispersion has been accelerated.

Compared with the prior art, the LED module is provided with the heat dissipation substrate 1, the heat dissipation strips 7, the mounting seat 6, the heat dissipation fins 102 and the like, the heat dissipation strips 7 enable a cavity to be formed between the heat dissipation plate 5 and the heat dissipation base, air circulation heat dissipation is facilitated, the heat dissipation substrate 1 is provided with the plurality of diffusion type air holes for improving the convection coefficient of the heat dissipation plate 5, effective heat transfer and heat dissipation discharge can be conducted on heat generated by the backlight LED module in work, the structure is simple, the practicability is high, and the problems that electronic components are aged too fast and the service life is shortened due to poor heat dissipation of the traditional backlight LED module are solved.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides a novel LED module in a poor light which characterized in that: including the frame, locate light guide plate and rigid coupling in the frame at the radiator unit of frame bottom, the inboard symmetry of frame is equipped with a plurality of luminescent plates, and the equipartition is equipped with a plurality of LED lamp pearls on the luminescent plate, and radiator unit includes the radiating basal plate of a plurality of mutual blocks, and the equal rigid coupling in radiating basal plate upper surface has the mount pad, and equal joint has the reflector panel between the adjacent mount pad, and the lower surface rigid coupling of reflector panel has can carry out radiating heating panel to the reflector panel, be equipped with a plurality of heat dissipation strips between heating panel and the radiating basal plate, a plurality of diffusion formula bleeder vents have all been opened to the radiating basal plate, and the radiating basal plate lower surface all is equipped with a plurality of heat radiation fins.

2. The novel backlight LED module as claimed in claim 1, wherein one end of the heat dissipation substrate is folded to form a slot, and the other end of the heat dissipation substrate is bent downward to form a connection portion capable of being engaged with the slot.

3. The novel backlight LED module as claimed in claim 1, wherein slots are formed between the two sides of the mounting base and the heat-dissipating substrates, and the slots of the adjacent heat-dissipating substrates cooperate to form an inverted T-shaped slot into which the light-emitting panel can be inserted.

4. The novel backlight LED module according to claim 1, wherein a bump is disposed on one side of the light-emitting plate away from the lamp bead, and dovetail grooves matched with the bump are symmetrically disposed on the inner side of the frame.

5. The novel backlight LED module according to any one of claims 1 to 4, wherein a lens plate with a curved surface structure is disposed between the light guide plate and the light reflection plate.

6. The novel backlight LED module as claimed in claim 5, wherein an elastic pressing block is disposed between the adjacent light-emitting boards.

7. The novel backlight LED module as claimed in claim 6, wherein the mounting base has a plurality of heat dissipation holes.