CN217112987U - Backlight module for automobile display screen - Google Patents

Abstract

The utility model discloses a backlight unit for automobile display screen, including installation shell and backlight unit, backlight unit installs the inboard of installation shell, just backlight unit's the outside is provided with the module frame, the inboard movable mounting of installation shell has two-way lead screw, two screw rod covers, two are installed to the screw thread on the two-way lead screw the symmetrical distribution of each other of lead screw cover, two the equal fixed mounting in top of lead screw cover has the positioning seat, two the positioning seat is located respectively the both sides of module frame, radiator fan is installed to the intermediate position department of the inboard bottom of installation shell, the constant head tank has all been seted up to the both sides of module frame, two the positioning seat is close to one side of module frame all is provided with the locating piece, two the locating piece distributes and is located two the inboard of constant head tank. The utility model discloses a set up a series of structures and make this device have the dismouting backlight unit of being convenient for and improve the characteristics to backlight unit's radiating efficiency.

Description

A backlight module for automotive display

technical field

The utility model relates to the technical field of backlight modules, in particular to a backlight module used for automotive display screens.

Background technique

The backlight module is one of the key components of the LCD panel. Its function is to supply sufficient brightness and a uniformly distributed light source so that it can display images normally. The backlight is the light source that provides the LCD panel. It is mainly composed of light source, light guide plate, optical film, plastic frame, etc. The backlight has the characteristics of high brightness, long life and uniform light emission. At present, there are mainly three types of backlight sources: EL, CCFL and LED. According to the distribution position of the light source, they are divided into edge type and direct type, and play an important role in the field of LED display.

When the existing display backlight module is in use, it is generally installed on the installation shell of the display by means of screws or pasting. There is a lot of heat, but it basically relies on natural heat dissipation to dissipate heat. The heat dissipation efficiency is low, which easily leads to accelerated aging of internal electronic components and affects the service life. Therefore, in order to solve these problems, we propose a backlight for automotive display. Mods solve the problem.

Utility model content

The purpose of the utility model is to solve the shortcomings of the prior art, and propose a backlight module for automotive display screens.

In order to achieve the above purpose, the present invention adopts the following technical solutions: a backlight module for an automobile display screen, comprising a mounting shell and a backlight module, the backlight module is mounted on the inner side of the mounting shell, and the A module frame is arranged on the outer side of the backlight module, and a bidirectional screw rod is movably installed on the inner side of the installation shell. Two screw rod sleeves are threadedly installed on the bidirectional screw rod, and the two screw rod sleeves are symmetrically distributed to each other. , the tops of the two screw sleeves are fixedly installed with positioning seats, the two positioning seats are respectively located on both sides of the module frame, and a cooling fan is installed at the middle position of the bottom of the inner side of the mounting shell.

As a further description of the above technical solutions:

Both sides of the module frame are provided with positioning grooves, and two positioning seats are provided with positioning blocks on one side of the two positioning seats close to the module frame, and the two positioning blocks are distributed on the two positioning grooves. inside.

As a further description of the above technical solutions:

The side walls on both sides of the mounting shell are densely provided with a plurality of heat dissipation through holes, and the heat dissipation through holes are inclined downward from the inside to the outside.

As a further description of the above technical solutions:

A limit rod is fixedly installed on the inner side of the installation shell, the limit rod is located directly below the two-way screw rod, and two limit sleeves are movably sleeved on the limit rod. A connecting block is fixedly installed between the screw sleeves.

As a further description of the above technical solutions:

One end of the bidirectional screw rod is connected with a connecting rod, and one end of the connecting rod is fixedly mounted with a rotating rod.

As a further description of the above technical solutions:

Installation frames are fixedly installed on both sides of the installation shell, and dust-proof nets are installed on the inner sides of the two installation frames.

The utility model has the following beneficial effects:

1. In this utility model, by rotating the rotating rod, the connecting rod rotates, and the connecting rod drives the two-way screw to rotate, and because the inner side of the installation shell is fixedly installed with a limit rod, the limit rod is located directly below the two-way screw, and the limit Two limit sleeves are installed on the movable sleeve on the rod, and a connecting block is fixedly installed between the limit sleeve and the screw sleeve, so that when the two-way screw rotates, the two screw sleeves will not rotate with The two-way screw moves in the opposite direction or in the opposite direction at the same time, thereby driving the two positioning seats to move in the opposite direction or in the opposite direction at the same time, thereby facilitating the installation and disassembly of the backlight module;

2. In the present utility model, by controlling the cooling fan, the interior of the mounting shell can be blown and radiated, thereby accelerating the air circulation inside the mounting shell, cooling the backlight module, and preventing the accelerated aging of the electronic components inside the backlight module, which affects the use of the device. life.

Description of drawings

Fig. 1 is the structural representation of the present utility model;

Fig. 2 is the enlarged view of place A in Fig. 1 of the present utility model;

Fig. 3 is the enlarged view of the place B in Fig. 1 of the present utility model;

In the picture: 1. Installation shell; 2. Module frame; 3. Backlight module; 4. Bidirectional screw; 5. Cooling fan; 6. Limit rod; 7. Limit sleeve; 8. Connection block; 9. Screw sleeve; 10. Positioning block; 11. Positioning seat; 12. Positioning slot; 13. Heat dissipation through hole; 14. Dust filter; 15. Installation frame;

Detailed ways

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. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, with a specific orientation. Therefore, it should not be construed as a limitation to the present invention; the terms "first", "second" and "third" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance. In addition, Unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, It can also be an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

1-3, an embodiment provided by the present utility model: a backlight module for a car display screen, including a mounting shell 1 and a backlight module 3, the backlight module 3 is installed on the inner side of the mounting shell 1, And the outer side of the backlight module 3 is provided with a module frame 2, the inner side of the installation shell 1 is movably installed with a bidirectional screw 4, and two screw sleeves 9 are threadedly installed on the bidirectional screw 4, and the two screw sleeves 9 are symmetrical to each other. The tops of the two screw sleeves 9 are fixedly installed with positioning seats 11 , the two positioning seats 11 are respectively located on both sides of the module frame 2 , and a cooling fan 5 is installed in the middle of the bottom of the inner side of the installation shell 1 .

Both sides of the module frame 2 are provided with positioning grooves 12 , and two positioning seats 11 are provided with positioning blocks 10 on one side of the module frame 2 , and the two positioning blocks 10 are distributed on the inner side of the two positioning grooves 12 , and then The stability of the module frame 2 after installation can be improved.

The sidewalls on both sides of the mounting shell 1 are densely provided with a plurality of heat dissipation through holes 13, and the heat dissipation through holes 13 are inclined downward from the inside to the outside, which makes the design of the device reasonable and facilitates ventilation and heat dissipation. A limit rod 6 is fixedly installed on the inner side of the installation shell 1. The limit rod 6 is located directly below the two-way screw rod 4. Two limit sleeves 7 are installed on the limit rod 6 in a movable sleeve. The limit sleeve 7 and the screw sleeve A connecting block 8 is fixedly installed between the 9, so that when the two-way screw 4 rotates, the two screw sleeves 9 will not rotate along with it, but can only move in the opposite or reverse direction on the two-way screw 4 at the same time.

One end of the two-way screw 4 is connected with a connecting rod 17, and one end of the connecting rod 17 is fixedly installed with a rotating rod 16. By rotating the rotating rod 16, the connecting rod 17 is rotated, and the connecting rod 17 drives the two-way screw 4 to rotate. Installation frames 15 are fixedly installed on both sides of the installation shell 1 , and dustproof nets 14 are installed on the inner sides of the two installation frames 15 to prevent dust from entering the interior of the installation shell 1 .

Working principle: Before use, first check the safety of each structure of the present utility model, by rotating the rotating rod 16, the connecting rod 17 is rotated, and the connecting rod 17 drives the two-way screw 4 to rotate. The limit rod 6, the limit rod 6 is located directly below the two-way screw 4, the limit rod 6 is movably sleeved with two limit sleeves 7, and a connection block is fixedly installed between the limit sleeve 7 and the screw sleeve 9 8, so that when the two-way screw 4 rotates, the two screw sleeves 9 will not rotate with it, but can only move in the same direction or in the opposite direction on the two-way screw 4, thereby driving the two positioning seats 11 in the same direction or in the opposite direction. Move, and then facilitate the installation and disassembly of the backlight module 3, by controlling the cooling fan 5, the interior of the installation shell 1 can be blown and radiated, thereby accelerating the air circulation inside the installation shell 1, cooling the backlight module 3, preventing The accelerated aging of the electronic components inside the backlight module 3 affects the service life.

Finally, it should be noted that the above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. , it can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements to some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model, All should be included within the protection scope of the present invention.

Claims (6)

1. A backlight module for an automobile display screen, comprising a mounting shell (1) and a backlight module (3), characterized in that: the backlight module (3) is mounted on the back of the mounting shell (1). The inner side, and the outer side of the backlight module (3) is provided with a module frame (2), the inner side of the mounting shell (1) is movably installed with a bidirectional screw (4), and the bidirectional screw (4) is on the Two screw sleeves (9) are mounted on the thread, the two screw sleeves (9) are symmetrically distributed with each other, and the tops of the two screw sleeves (9) are fixedly installed with positioning seats (11). The positioning seats (11) are respectively located on both sides of the module frame (2), and a cooling fan (5) is installed at the middle position of the inner bottom of the mounting shell (1). 2. A backlight module for an automobile display screen according to claim 1, characterized in that: both sides of the module frame (2) are provided with positioning grooves (12), and two positioning grooves (12) are provided on both sides of the module frame (2). One side of the seat (11) close to the module frame (2) is provided with positioning blocks (10), and the two positioning blocks (10) are distributed on the inner side of the two positioning grooves (12). 3. A backlight module for an automotive display screen according to claim 2, wherein a plurality of heat dissipation through holes (13) are densely opened on the side walls on both sides of the mounting shell (1). , the heat dissipation through holes (13) are inclined downward from the inside to the outside. 4. A backlight module for an automobile display screen according to claim 3, characterized in that: a limit rod (6) is fixedly installed on the inner side of the mounting shell (1), and the limit rod (6) ) is located directly below the two-way screw (4), two limit sleeves (7) are installed on the limit rod (6) in a movable sleeve, and the limit sleeve (7) is connected to the screw rod. A connecting block (8) is fixedly installed between the sleeves (9). 5. A backlight module for an automobile display screen according to claim 4, characterized in that: one end of the two-way screw (4) is connected with a connecting rod (17), and the connecting rod (17) A rotating rod (16) is fixedly installed at one end of the . 6. A backlight module for an automobile display screen according to claim 5, characterized in that: both sides of the mounting shell (1) are fixedly mounted with mounting frames (15), and two mounting frames (15) are fixedly mounted on both sides of the mounting shell (1). Dust filters (14) are installed on the inner side of the frame (15).

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