CN210428028U

CN210428028U - Cell-phone backlight carriage

Info

Publication number: CN210428028U
Application number: CN201921564879.7U
Authority: CN
Inventors: 吴连才; 吴金埕
Original assignee: Shenzhen Saineng Precision Hardware Co Ltd
Current assignee: Shenzhen Saineng Precision Hardware Co Ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-04-28
Anticipated expiration: 2029-09-19

Abstract

The utility model discloses a cell-phone backlight carriage, including base plate and plastic frame, the base plate upwards extends respectively all around has the arch, and one side inboard of plastic frame is equipped with the light guide groove mutually, and the height of plastic frame is higher than bellied height, and the arch runs through there is the draw-in groove, and the plastic frame outer wall is equipped with the buckle with the draw-in groove chucking, and the plastic frame card is established in base plate arch all around and closely laminates with the arch. The mobile phone backlight source support frame has the advantages that the height of the plastic frame is higher than that of the bulge, when the lower end structure of the plastic light guide plate in the mobile phone is matched with the bulge of the substrate, the mobile phone backlight source support frame prevents light rays emitted by an LED light source arranged in the mobile phone from being emitted outwards, the backlight effect is improved, and the liquid crystal display works normally; the light guide grooves and the reflecting mirror surface are matched with each other, so that light rays emitted by the LED light source can be uniformly distributed on the surface of the substrate; the expansion-proof gap can prevent the plastic frame from deforming caused by expansion with heat and contraction with cold during injection molding.

Description

Cell-phone backlight carriage

Technical Field

The utility model belongs to the technical field of the cell-phone technique of being shaded and specifically relates to a cell-phone backlight carriage.

Background

The backlight source is an important component in the liquid crystal display module, and its main function is to provide the light source of the liquid crystal display, and wherein, the mobile phone backlight source supporting frame plays an indispensable role as the carrier of the backlight. In the prior art, the mobile phone backlight supporting frame comprises a base body and a protrusion extending upwards from the periphery of the base body, and is made of an iron material. The mobile phone is internally provided with an LED light source, a mobile phone backlight supporting frame, a reflective film component, a plastic light guide plate and a black-and-white shading double-sided adhesive tape, the reflective film component is attached to the front of the mobile phone backlight supporting frame, the plastic light guide plate is arranged in the mobile phone backlight supporting frame, the black-and-white shading double-sided adhesive tape is attached to the front of the plastic light guide plate, and the LED light source is arranged at one end of the plastic light guide. When the plastic light guide plate is arranged in the mobile phone backlight supporting frame, the lower end structure of the plastic light guide plate is in adaptive connection with the mobile phone backlight supporting frame, and the mobile phone backlight supporting frame is made of an iron material, so that a gap exists between the protrusion of the mobile phone backlight supporting frame and the plastic light guide plate, and the structure influences the backlight effect of the backlight source, and further influences the normal work of the liquid crystal display.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the not enough of prior art, provide a cell-phone backlight carriage.

The utility model discloses a technical scheme:

the utility model provides a cell-phone backlight carriage, includes base plate and plastic frame, the base plate upwards extends respectively all around has the arch, one side inboard of plastic frame is alternate to be equipped with the light guide groove, the height that highly is higher than bellied height of plastic frame, the arch runs through there is the draw-in groove, the plastic frame outer wall is equipped with the buckle with the draw-in groove chucking, the plastic frame card is established in base plate arch all around and closely laminates with the arch.

One preferred scheme is that a reflecting mirror surface is arranged on the inner side of the plastic frame and is positioned on one side opposite to the light guide groove.

A preferred scheme is that the light guide groove and the plastic frame are of an integrated structure, and the bottom of the light guide groove is provided with an anti-expansion notch.

A preferable scheme is that the notch is U-shaped, and the depth of the notch is 0.2 mm-0.5 mm.

One preferred scheme is that the base plate and the protrusion are of an integral structure.

One preferred scheme is that the plastic frame and the light guide groove are respectively made of plastic materials.

One preferred solution is that the substrate is made of iron.

Synthesize above-mentioned technical scheme, the beneficial effects of the utility model: the height of the plastic frame is higher than that of the bulge, when the lower end structure of the plastic light guide plate in the mobile phone is matched with the bulge of the substrate, the mobile phone backlight source supporting frame prevents light rays emitted by an LED light source arranged in the mobile phone from being emitted outwards, the backlight effect is improved, and the liquid crystal display works normally; the light guide grooves and the reflecting mirror surface are matched with each other, so that light rays emitted by the LED light source can be uniformly distributed on the surface of the substrate; the expansion-proof gap can prevent the plastic frame from deforming caused by expansion with heat and contraction with cold during injection molding.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a first perspective view of the plastic frame of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a second perspective view of the plastic frame of the present invention;

FIG. 4 is a partial enlarged view of B in FIG. 3;

fig. 5 is a perspective view of the base plate of the present invention;

FIG. 6 is an enlarged view of a portion C of FIG. 5;

fig. 7 is a top view of the present invention;

FIG. 8 is an enlarged view of a portion D of FIG. 7;

fig. 9 is an exploded view of the interior of the handset.

Detailed Description

For the purpose of illustrating the spirit and purposes of the present invention, the present invention will be further described with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1 to 8, a mobile phone backlight supporting frame includes a substrate 10 and a plastic frame 20, the substrate 10 is respectively extended with protrusions 11, light guide grooves 21 are alternately arranged on the inner side of one side of the plastic frame 20, the height of the plastic frame 20 is higher than that of the protrusions 11, a clamping groove 12 is arranged at the joint of the protrusions 11 and the substrate 10 in a penetrating manner, a buckle 22 clamped with the clamping groove 12 is arranged on the outer wall of the plastic frame 20, and the plastic frame 20 is clamped in the protrusions 11 around the substrate 10 and tightly attached to the protrusions 11. The plastic frame 20 can be formed by injection molding alone, and the plastic frame 20 and the substrate 10 are engaged with each other to prevent the substrate 10 and the frame 11 from being separated from each other. The height of the plastic frame 20 is higher than the protrusion 11, and when the lower end structure of the plastic light guide plate 40 in the mobile phone is matched with the protrusion 11 of the substrate 10, the backlight supporting frame of the mobile phone prevents light emitted by the LED light source 60 arranged inside the mobile phone from being emitted outwards, so that the backlight effect is improved, and the liquid crystal display works normally.

As shown in fig. 1 to 8, a reflective mirror is disposed inside the plastic frame 20 and located at an opposite side of the light guide groove 21. The light guide grooves and the reflecting mirror surface are matched with each other, so that light rays emitted by the LED light sources 60 can be uniformly distributed on the surface of the substrate 10.

As shown in fig. 1 to 8, the outer wall of the plastic frame 20 is provided with a notch groove 23, the notch groove 23 is located under the buckle 22, the inner wall of the protrusion 11 is provided with a protruding strip 13 matching with the notch groove 23, and after the plastic frame 20 and the substrate 10 are mutually fastened, the protruding strip 13 is fastened into the notch groove 23, so that the plastic frame 20 and the substrate 10 are fastened more tightly.

As shown in fig. 1 to 8, the light guide groove 21 and the plastic frame 20 are an integral structure, and the bottom of the light guide groove 21 is provided with an anti-expansion gap. The expansion-proof gap can prevent the plastic frame from deforming caused by expansion with heat and contraction with cold during injection molding.

As shown in FIGS. 1 to 8, the notch is U-shaped, and the depth of the notch is 0.2mm to 0.5 mm. The outer end of the notch is deformed greatly, and the inner end of the notch is deformed slightly, so that the notch is arranged to be U-shaped.

As shown in fig. 1 to 9, the utility model discloses be used inside the cell-phone, inside LED light source 60, the cell-phone backlight carriage, reflective membrane part 30, plastic light guide plate 40 and the black and white shading double faced adhesive tape 50 of being equipped with of cell-phone, reflective membrane part 30 is attached in the front of the cell-phone backlight carriage, and plastic light guide plate 40 sets up in the cell-phone backlight carriage, and black and white shading double faced adhesive tape 50 is attached in the front of plastic light guide plate 40, and LED light source 60 sets up the one end at plastic light guide plate 40. When the plastic light guide plate 40 is disposed in the mobile phone backlight supporting frame, the lower end structure of the plastic light guide plate 40 is connected to the mobile phone backlight supporting frame in an adaptive manner. The assembly positioning of the mobile phone backlight source can be accurate, and the assembly structure is stable.

The above is a detailed implementation manner of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. The utility model provides a cell-phone backlight carriage, its characterized in that, includes base plate and plastic frame, the base plate upwards extends respectively all around has the arch, one side inboard of plastic frame is alternate to be equipped with the light guide groove, the height that highly is higher than the bellied height of plastic frame, the arch runs through there is the draw-in groove, the plastic frame outer wall is equipped with the buckle with the draw-in groove chucking, the plastic frame card is established in base plate arch all around and closely laminates with the arch.

2. The handset backlight source supporting frame according to claim 1, wherein a reflective mirror is disposed inside the plastic bezel, and the reflective mirror is disposed on an opposite side of the light guide groove.

3. The mobile phone backlight support frame of claim 2, wherein the light guide groove and the plastic frame are of an integrated structure, and an anti-expansion gap is formed at the bottom of the light guide groove.

4. The mobile phone backlight source supporting frame according to claim 3, wherein the notch is U-shaped, and the depth of the notch is 0.2mm to 0.5 mm.

5. The handset backlight source support frame according to claim 1, wherein the substrate and the protrusion are of an integral structure.

6. The handset backlight source support frame according to claim 1, wherein the plastic frame and the light guide groove are made of plastic material.

7. The handset backlight support frame according to any one of claims 1 to 6, wherein the substrate is made of iron.