CN211905927U - Backlight module and liquid crystal display device - Google Patents

Abstract

The utility model discloses a backlight module and a liquid crystal display device, which relate to the technical field of liquid crystal display equipment. The backlight module includes a backplane, a middle frame and an elastic connecting piece, the backplane includes a first side board, and the elastic connecting piece is clamped on the first side board; the middle frame is provided with a accommodating cavity, the first side board and the elastic connecting piece The elastic connecting piece is installed in the accommodating cavity, and the elastic connecting piece is in contact with the side wall of the accommodating cavity; the elastic connecting piece comprises a dismounting part, and a first gap is set between the disassembling part and the first side plate. In the backlight module provided by the utility model, by arranging a dismounting part on the elastic connecting piece, the middle frame and the back plate can be easily disassembled only by inserting a hard sheet into the first gap and prying open the elastic connecting piece, and Not easy to damage the middle frame and back panel.

Description

Backlight module and liquid crystal display device

technical field

The utility model relates to the technical field of liquid crystal display devices, in particular to a backlight module and a liquid crystal display device.

Background technique

With the continuous development of science and technology, consumers have higher and higher requirements for the appearance of TV sets, and metal texture, ultra-thin and ultra-narrow have become new trends.

At present, in order to realize the ultra-thin and ultra-narrow development of the backlight module, the assembly structure of the backplane and the middle frame of the backlight module usually adopts two methods. One is that the metal middle frame and the module backplane are pasted with glue or tape; As shown in FIG. 1 , a buckle 4 ′ is punched on the module back plate 1 ′ to clamp the metal middle frame 2 ′. The middle frame of the module in these two ways is difficult to disassemble, and it is very inconvenient to repair and rework once defective products occur.

Utility model content

One purpose of the present invention is to provide a backlight module, which solves the problem that the middle frame and the back plate of the backlight module in the prior art are difficult to disassemble.

For this purpose, the utility model adopts the following technical solutions:

A backlight module includes a backplane, a middle frame and an elastic connector, the backplane includes a first side plate, and the elastic connector is clamped on the first sideboard; the middle frame is provided with an accommodating cavity, the first side plate and the elastic connecting piece are installed in the accommodating cavity, and the elastic connecting piece is in contact with the side wall of the accommodating cavity; the elastic connecting piece includes a dismounting part, the A first gap is provided between the dismantling part and the first side plate.

Optionally, the elastic connecting member further includes a fixing portion, the fixing portion includes a first connecting plate and a first fixing portion and a second fixing portion extending downward along both ends of the first connecting plate, the first connecting plate A fixing part cooperates with the second fixing part to clamp the first side plate.

Optionally, the first fixing part is provided with a card slot, the first side plate is provided with a boss matched with the card slot, and the card slot cooperates with the boss to hold the back plate. The board is clamped and fixed with the elastic connector.

Optionally, the dismantling part includes a first connecting piece, the first connecting piece is connected with the first fixing part and is inclined in a direction away from the first side plate, and the first gap is located in the between the first connecting piece and the first side plate.

Optionally, the middle frame includes a transverse plate, a bending plate and a second side plate, and the transverse plate, the bending plate and the second side plate constitute the accommodating cavity.

Optionally, the end of the first connecting piece is in abutment with the bending plate.

Optionally, the elastic connecting piece further includes an abutting portion, the abutting portion is provided on the first fixing portion, the abutting portion is inclined in a direction away from the first side plate, and can be connected with the first side plate. The bent plates are in abutment.

Optionally, the abutting portion includes a second connecting piece and a first fitting piece connected thereto, and the second connecting piece is inclined from the first fixing portion to a direction away from the first side plate, so The first bonding sheet is bonded to the bending plate.

Optionally, the elastic connecting piece includes two dismounting parts and one abutting part, and one abutting part is disposed between the two dismounting parts.

Another object of the present invention is to provide a liquid crystal display device, which solves the problem of high maintenance cost of the liquid crystal display device in the prior art.

For this purpose, the utility model adopts the following technical solutions:

A liquid crystal display device, comprising the backlight module.

The beneficial effects of the present utility model:

In the backlight module provided by the present invention, the elastic connecting piece is clamped on the first side plate of the backplane, the first side plate and the elastic connecting piece are installed in the accommodating cavity of the middle frame, and the elastic connecting piece and the accommodating cavity are in contact with each other. The side wall abuts; the elastic connector includes a disassembly part, and a first gap is set between the disassembly part and the first side plate. When the back plate and the middle frame need to be disassembled, just use a hard sheet to insert into the first gap, and pry The elastic connecting piece can be disengaged from the back plate by opening the elastic connecting piece. After the elastic connecting piece is disengaged, the contact with the inner wall of the accommodating cavity fails, and the middle frame and the elastic connecting piece can be taken out together. In the backlight module provided by the utility model, the middle frame and the back plate can be easily disassembled by arranging a disassembly part on the elastic connecting piece, and the middle frame and the back plate are not easily damaged.

The liquid crystal display device provided by the utility model adopts the above-mentioned backlight module to improve the efficiency of assembly and disassembly, and the original parts are not easily damaged during disassembly, thereby reducing the maintenance cost of the liquid crystal display device.

Description of drawings

1 is a schematic structural diagram of the assembly of a middle frame and a backplane of a backlight module in the prior art;

2 is a schematic structural diagram of an elastic connector provided in Embodiment 1 of the present invention;

3 is a schematic diagram of the connection structure between the elastic connector and the back plate provided by the first embodiment of the present invention;

4 is a schematic position diagram of the backplate and the middle frame provided in the first embodiment of the present invention during the assembly process;

5 is a schematic structural diagram of the backplane and the middle frame provided in Embodiment 1 of the present invention after being assembled;

6 is a schematic structural diagram of an elastic connector provided in Embodiment 2 of the present invention;

7 is a schematic diagram of the connection structure between the elastic connector and the back plate provided by the second embodiment of the present invention;

FIG. 8 is a schematic structural diagram of the backplane and the middle frame provided in the second embodiment of the present invention after being assembled.

In the picture:

1', back plate; 2', middle frame; 4', buckle;

1. Back plate; 2. Middle frame; 3. Elastic connector;

11, the first side plate; 21, the horizontal plate; 22, the bending plate; 23, the second side plate;

111, boss; 221, third side plate; 222, second connecting plate; 223, fourth side plate; 224, extension plate; 311, second connecting piece; 312, first laminating piece; 321, first connecting piece; 331, first connecting plate; 332, first fixing part; 333, second fixing part;

3321. Card slot.

Detailed ways

In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clearly, the technical solutions of the present invention are further described below with reference to the accompanying drawings and through specific embodiments.

In the description of the present invention, unless otherwise expressly specified and limited, the terms "connected", "connected" and "fixed" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or a fixed connection. It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be an internal connection between two elements or an interaction relationship between the two elements. 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.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features The features are not in direct contact but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

In the description of this embodiment, the terms "up", "down", "right" and other azimuth or positional relationships are based on the azimuth or positional relationship shown in the drawings, which are only for the convenience of description and simplification of operations, rather than indicating or It is implied that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for distinction in description, and have no special meaning.

Example 1

As shown in FIGS. 2-5 , this embodiment provides a backlight module, which includes a backplane 1 , a middle frame 2 and an elastic connector 3 , the backplane 1 includes a first side plate 11 , and the elastic connector 3 snaps Connected to the first side plate 11; the middle frame 2 is provided with a accommodating cavity, the first side plate 11 and the elastic connecting piece 3 are installed in the accommodating cavity, and the elastic connecting piece 3 is in contact with the side wall of the accommodating cavity; the elastic connecting piece 3 includes a dismounting portion, and a first gap is set between the dismounting portion and the first side plate 11 .

In the backlight module provided in this embodiment, by clamping the elastic connector 3 on the first side plate 11 of the backplane 1, the first side plate 11 and the elastic connector 3 are installed in the accommodating cavity of the middle frame 2, and the elastic The connecting piece 3 is in contact with the side wall of the accommodating cavity; the elastic connecting piece 3 includes a dismounting part, and a first gap is set between the dismounting part and the first side plate 11 , when the back plate 1 and the middle frame 2 need to be disassembled, only Insert a hard sheet into the first gap, and pry open the elastic connector 3, so that it can be separated from the back plate 1. After the elastic connector 3 is detached, the contact with the inner wall of the accommodating cavity fails, and the middle frame 2 and the inner wall can be separated. The elastic connectors 3 are taken out together. The backlight module can easily disassemble the middle frame 2 and the back plate 1 by providing a disassembly portion on the elastic connecting member 3 , and the middle frame 2 and the back plate 1 are not easily damaged.

Optionally, as shown in FIG. 2 , the elastic connecting member 3 further includes a fixing portion, and the fixing portion includes a first connecting plate 331 , a first fixing portion 332 and a second fixing portion extending downward along both ends of the first connecting plate 331 . 333 , the first fixing portion 332 and the second fixing portion 333 cooperate to clamp the first side plate 11 . In this embodiment, the elastic connecting member 3 is a metal elastic buckle. When the metal elastic buckle is engaged with the back plate 1, the first fixing portion 332 and the second fixing portion 333 are separated from the bottom gap from the first side plate. The upper end of the first side plate 11 is inserted, and the two sides of the first side plate 11 are clamped respectively, and the first connecting plate 331 is in contact with the upper end surface of the first side plate 11 .

Specifically, as shown in FIG. 2 and FIG. 3 , the first fixing portion 332 is provided with a slot 3321 , the first side plate 11 is provided with a boss 111 matched with the slot 3321 , the slot 3321 and the boss 111 The backplane 1 and the elastic connector 3 are snap-fitted and fixed together. It can be understood that the first fixing portion 332 and the second fixing portion 333 can clamp the first side plate 11 by the elastic force of the elastic connecting piece 3 , but once an external force is applied, the back plate 1 is easily removed from the first side plate 11 of the elastic connecting piece 3 . The fixing part 332 and the second fixing part 333 fall off, and the setting of the card slot 3321 and the boss 111 enables the elastic connector 3 to be clamped on the backplane 1 , which enhances the reliability of the connection between the elastic connector 3 and the backplane 1 .

Specifically, the dismantling part includes a first connecting piece 321, the first connecting piece 321 is connected with the first fixing part 332, and is inclined in a direction away from the first side plate 11, and the first gap is located between the first connecting piece 321 and the first side between the plates 11. A first gap is provided between the elastic connecting piece 3 and the backboard 1 to facilitate the guiding and insertion of a disassembly tool, so as to pry the connection between the elastic connecting piece 3 and the backboard 1 to separate them. In this embodiment, the first connecting piece 321 and the first fixing portion 332 are integrally formed. Of course, in other embodiments, the first connecting piece 321 and the first fixing portion 332 may also be separate structures, and are fixedly connected by welding or other connection methods.

Optionally, as shown in FIG. 4 , the middle frame 2 includes a transverse plate 21 , a bending plate 22 and a second side plate 23 , and the transverse plate 21 , the bending plate 22 and the second side plate 23 constitute an accommodation cavity. In this embodiment, the bending plate 22 includes a third side plate 221, a second connecting plate 222, a fourth side plate 223 and an extension plate 224 extending from the fourth side plate 223 to the back plate 1. The second connecting plate 222 is used for In order to connect the third side plate 221 and the fourth side plate 223, the second connecting plate 222 is inclined in a direction away from the first side plate 11, and the first connecting plate 331 and the first fixing portion 332 are connected to the horizontal plate 21 and the third side plate 21, respectively. The plate 221 is in contact with each other, and a second gap is provided between the second fixing portion 333 and the second side plate 23 . In this embodiment, a second gap is set between the second fixing portion 333 and the second side plate 23 , which provides a space for the first side plate 11 to move away from the middle frame 2 during disassembly, which is convenient for the middle frame 2 Quick disassembly with backplate 1.

Optionally, as shown in FIG. 5 , the elastic connecting member 3 further includes an abutting portion, the abutting portion is provided on the first fixing portion 332 , the abutting portion is inclined in a direction away from the first side plate 11 , and can be connected with the bending The flaps 22 are in contact with each other. Specifically, in this embodiment, the abutting portion includes a second connecting piece 311 and a first bonding piece 312 connected thereto, the second connecting piece 311 is inclined in a direction away from the first side plate 11 , and the first bonding piece 312 is attached to the bending plate 22 . Disposing the abutting portion between the fourth side plate 223 and the first side plate 11 saves the space occupied by the backlight module; in this embodiment, the abutting portion and the first fixing portion 332 are integrally formed. The first bonding sheet 312 is bonded to the fourth side plate 223 , the first bonding sheet 312 increases the contact area between the abutting portion and the bending plate 22 , and improves the stability of the connection between the middle frame 2 and the backboard 1 .

Optionally, the elastic connector 3 includes two dismounting parts and one abutting part, and one abutting part is disposed between the two dismounting parts. Two disassembly parts are provided, so that when disassembling, the backlight module can be disassembled from any side, which improves the work efficiency of disassembly. Of course, in other embodiments, only one disassembly part may be provided.

For the backlight module provided in this embodiment, as shown in FIG. 4 , during installation, the metal elastic buckle is firstly clamped on the first side plate 11 of the backplane 1 , and then the metal elastic buckle is fastened. The back plate 1 is installed in the accommodating cavity of the middle frame 2, so that the abutting part of the metal elastic buckle is completely abutted with the side wall of the accommodating cavity of the middle frame 2. As shown in FIG. 5, the installation of the backlight module is completed. When it needs to be disassembled, use a hard sheet tool, such as a flat-blade screwdriver, to guide and insert it from the first gap, so that the first side plate 11 is far away from the middle frame 2, the boss 111 is disengaged from the slot 3321, and the metal elastic snaps and accommodates When the abutment of the cavity fails, the middle frame 2 and the metal elastic buckle can be taken out.

This embodiment also provides a liquid crystal display device, which includes the above-mentioned backlight module. The liquid crystal display device adopts the above-mentioned backlight module, which improves the efficiency of assembly and disassembly, and is not easy to damage the original parts during disassembly, thereby reducing the maintenance cost of the liquid crystal display device.

Embodiment 2

The difference between this embodiment and the first embodiment is that, as shown in FIGS. 6-8 , the backlight module provided in this embodiment uses the first connecting piece 321 as the abutting portion, and the end of the first connecting piece 321 is connected to the curved The flaps 22 are in contact with each other. In this embodiment, the bottom of the first connecting piece 321 abuts against the bent portion of the bending plate 22 , that is, abuts against the connection between the fourth side plate 223 and the extension plate 224 . Such an arrangement can also play the role of fixing the back plate 1 and the middle frame 2, and the first gap is located between the first connecting piece 321 and the first side plate 11, and a rigid sheet can be inserted from the first gap during disassembly. Separate the back panel 1 from the middle frame 2. In this embodiment, the abutting portion and the dismounting portion are set as an integral structure, so that the structure of the elastic connecting member 3 is simpler and the cost is reduced.

The above content is only a preferred embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and application scope, and the content of this description should not be construed as Limitations of the present invention.

Claims (10)

1. A backlight module, characterized in that it comprises a backplane (1), a middle frame (2) and an elastic connector (3), the backplane (1) comprising a first side plate (11), the The elastic connecting piece (3) is clamped on the first side plate (11); the middle frame (2) is provided with a accommodating cavity, the first side plate (11) and the elastic connecting piece (3) is installed in the accommodating cavity, and the elastic connecting piece (3) is in contact with the side wall of the accommodating cavity; the elastic connecting piece (3) includes a dismounting part, and the disassembling part is connected to the first side A first gap is provided between the plates (11). 2 . The backlight module according to claim 1 , wherein the elastic connecting member ( 3 ) further comprises a fixing portion, and the fixing portion comprises a first connecting plate ( 331 ) and an edge along the first connecting plate. 3 . (331) A first fixing portion (332) and a second fixing portion (333) extending downward at both ends, the first fixing portion (332) and the second fixing portion (333) cooperate to clamp the Describe the first side plate (11). 3. The backlight module according to claim 2, wherein a card slot (3321) is provided on the first fixing portion (332), and a card slot (3321) is provided on the first side plate (11) A boss (111) matched with a card slot (3321), the card slot (3321) cooperates with the boss (111) to snap and fix the back plate (1) and the elastic connecting piece (3) . 4. The backlight module according to claim 2 or 3, wherein the dismounting portion comprises a first connecting piece (321), the first connecting piece (321) and the first fixing portion (332) ) is connected and inclined in a direction away from the first side plate (11), and the first gap is located between the first connecting piece (321) and the first side plate (11). 5 . The backlight module according to claim 4 , wherein the middle frame ( 2 ) comprises a horizontal plate ( 21 ), a bending plate ( 22 ) and a second side plate ( 23 ), and the horizontal plate ( 23 ) (21), the bending plate (22) and the second side plate (23) constitute the accommodating cavity. 6 . The backlight module according to claim 5 , wherein the end of the first connecting piece ( 321 ) is in abutment with the bending plate ( 22 ). 7 . 7 . The backlight module according to claim 5 , wherein the elastic connecting member ( 3 ) further comprises an abutting portion, and the abutting portion is arranged on the first fixing portion ( 332 ), so that the The abutting portion is inclined in a direction away from the first side plate (11), and can be in contact with the bending plate (22). 8 . The backlight module according to claim 7 , wherein the abutting portion comprises a second connecting piece ( 311 ) and a first bonding piece ( 312 ) connected thereto, and the second connecting piece ( 311) The first fixing portion (332) is inclined in a direction away from the first side plate (11), and the first bonding sheet (312) is bonded to the bending plate (22). 9 . The backlight module according to claim 8 , wherein the elastic connecting member ( 3 ) comprises two dismantling parts and one abutting part, and one abutting part is disposed on two between the dismantling parts. 10. A liquid crystal display device, comprising the backlight module according to any one of claims 1-9.

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