High-heat-dissipation vehicle-mounted LED backlight source

Abstract

A diffusion plate, an FPC (flexible printed circuit) light bar, conductive adhesive, fixing adhesive and heat-conducting adhesive are mounted in a shell, the shell comprises a shell and a mounting frame, the mounting frame is clamped at the top of the shell, the shell is an aluminum casting, the mounting frame is a middle iron frame, the back of the FPC light bar is fixedly connected with the inner wall of the shell through the heat-conducting adhesive, and the FPC light bar is fixed on the inner wall of the shell through the fixing adhesive. The diffusion plate is installed in the middle of the shell, the FPC light bar is located on the side face of the diffusion plate, and the conductive adhesive is fixed to the shell and connected with the FPC light bar. When the FPC light bar is subjected to heat dissipation, heat of the FPC light bar is transmitted to the shell through the heat-conducting glue, the shell is an aluminum casting, has good heat-conducting property and can quickly exchange heat with the outside so as to improve the heat dissipation efficiency, and the shell is added into the heat dissipation part, so that the heat conduction area during heat dissipation can be greatly increased, and the heat dissipation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of backlight source especially relates to a high heat dissipation vehicle-mounted LED backlight source. BACKGROUND

[0002] Back light is a light source behind liquid crystal display (LCD), and its light emitting effect will directly affect the visual effect of liquid crystal display module (LCM).

[0003] The LED backlight source on the vehicle in the prior art (namely the vehicle-mounted LED backlight source) has the problem of slow heat dissipation because the LED light bar is usually arranged inside the backlight source shell. SUMMARY

[0004] To solve at least one of the above technical defects, the utility model provides a high heat dissipation vehicle-mounted LED backlight source, including the diffusion board that is made of DBEF film, light enhancement film, diffusion film, light guide plate and reflection film, FPC light bar, release film, conductive glue, fixed glue, CTP glue, bubble gum and heat conducting glue, the diffusion board, FPC light bar, conductive glue, fixed glue and heat conducting glue are installed in the inside of shell, the shell includes casing and mounting frame, the mounting frame is connected in the top of casing, the casing is cast aluminum piece, and the mounting frame is medium iron frame, the back of FPC light bar is fixedly connected with the inner wall of casing through heat conducting glue, the diffusion board is installed in the middle part of casing, FPC light bar is located at the side of diffusion board, and the conductive glue is fixed on the casing and is connected with FPC light bar.

[0005] Further, the CTP glue is located at the top edge of the shell.

[0006] Further, the surface edge of the mounting frame is provided with bubble gum. Beneficial effects

[0007] When the FPC light bar is cooled, the heat of the FPC light bar is transmitted to the casing through the heat conducting glue.

[0008] The utility model will be further explained by combining with the embodiment and referring to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1This is an exploded view of the entire utility model.

[0010] exist Figure 1 The correspondence between component names or lines and the attached drawing numbers is as follows: 1. Outer shell, housing, mounting frame, diffuser plate 2. FPC light strip 3. Release film 4. Conductive adhesive 5. Fixing adhesive 6. CTP adhesive 7. Foam adhesive 8. Thermally conductive adhesive 9. Detailed Implementation

[0011] Please refer to Figure 1 ;

[0012] This embodiment provides a high heat dissipation automotive LED backlight, including a diffuser plate 2 composed of a DBEF film, a light enhancement film, a diffuser film, a light guide plate, and a reflective film; an FPC light strip 3; a release film 4; a conductive adhesive 5; a fixing adhesive 6; a CTP adhesive 7; a foam adhesive 8; and a thermally conductive adhesive 9. The diffuser plate 2, FPC light strip 3, conductive adhesive 5, fixing adhesive 6, and thermally conductive adhesive 9 are installed inside the housing 1. The housing 1 includes a shell and a mounting frame. The mounting frame is snapped onto the top of the shell. The shell is made of cast aluminum, and the mounting frame is made of iron. The back of the FPC light strip 3 is fixedly connected to the inner wall of the shell through the thermally conductive adhesive 9. The diffuser plate 2 is installed in the middle of the shell, and the FPC light strip 3 is located on the side of the diffuser plate 2. The conductive adhesive 5 is fixed to the shell and connected to the FPC light strip 3.

[0013] In practical implementation, when the FPC light strip 3 is cooled, the heat of the FPC light strip 3 is transferred to the housing through the thermally conductive adhesive 9. Since the housing is made of cast aluminum, it has good thermal conductivity and can quickly exchange heat with the outside world to improve the heat dissipation efficiency. In addition, the housing is added to the heat dissipation process, which can greatly increase the heat conduction area during heat dissipation and improve the heat dissipation efficiency.

[0014] Furthermore, CTP adhesive 7 is located at the top edge of the outer casing 1.

[0015] Furthermore, foam adhesive 8 is provided on the surface edge of the mounting frame.

Claims

1. A high heat dissipation automotive LED backlight, comprising a diffuser plate (2) composed of a DBEF film, a brightness enhancement film, a diffuser film, a light guide plate, and a reflective film, an FPC light strip (3), a release film (4), conductive adhesive (5), a fixing adhesive (6), a CTP adhesive (7), foam adhesive (8), and a thermally conductive adhesive (9), characterized in that: The diffuser plate (2), FPC light strip (3), conductive adhesive (5), fixing adhesive (6) and thermally conductive adhesive (9) are installed inside the housing (1). The housing (1) includes a housing and a mounting frame. The mounting frame is snapped onto the top of the housing. The housing is made of cast aluminum and the mounting frame is made of iron. The back of the FPC light strip (3) is fixedly connected to the inner wall of the housing through the thermally conductive adhesive (9). The diffuser plate (2) is installed in the middle of the housing. The FPC light strip (3) is located on the side of the diffuser plate (2). The conductive adhesive (5) is fixed to the housing and connected to the FPC light strip (3).

2. The high heat dissipation automotive LED backlight according to claim 1, characterized in that: CTP adhesive (7) is located at the top edge of the outer casing (1).

3. The high heat dissipation automotive LED backlight according to claim 2, characterized in that: Foam adhesive (8) is provided on the surface edge of the mounting frame.

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