CN100578316C - Wire fixing device for backlight module - Google Patents

Abstract

A wire fixing device of a backlight module comprises: a back frame having a wire outlet end located at one side of the back frame, wherein the side has a plurality of protrusions, wherein the back frame further comprises a bottom plate, and the side protrudes upward relative to the plane direction of the bottom plate; a light source wire; and a plastic frame having a plurality of buckling claws, wherein the buckling claws face any protruding part to define a wire groove for fixing the light source wire led out from the wire outlet end, the buckling claws protrude out of the side edge of the back frame, and the opening faces the light source wire. The convex part of the back frame and the buckling claws on the rubber frame are used for fixing the light source wires in the wire grooves, so as to avoid the fracture of the welding points of the lamp tube due to stress and prevent the assembly interference caused by the deflection of the wires.

Description

Wire fixing device for backlight module

technical field

The invention relates to a backlight module, in particular to a wire fixing device for the backlight module.

Background technique

In recent years, liquid crystal displays have been widely used. With the improvement of driving technology, it has the advantages of low power consumption, thin and light weight, and low driving voltage. It has been widely used in mobile communication equipment, notebook computers, and desktops. type monitors and various projection devices. Generally, a more common liquid crystal display is a thin film transistor display. Since the thin film transistor display itself does not emit light, it needs to use a light source of a backlight module to achieve an image display effect. No matter what type of light source is used, during the assembly process of the backlight module, the wire of the light source needs to be led out from the outlet end of the backlight module for voltage application.

Generally speaking, the conductive terminal of the light source needs to be connected with the external wire by means of soldering or copper plating. When the external wire used to connect with the power supply is subjected to external stress such as pulling, the connecting portion of the wire terminal of the light source and the external wire is easily separated, or the stress is transmitted to the lamp tube to cause the lamp tube to break.

Generally, the design of the backlight module uses the aluminum plate as the bottom layer to bear the weight of the backlight components. FIG. 1 is a partial schematic diagram of a prior art backlight module assembled. As shown in FIG. 1 , the main structure of the backlight module 10 is a backplane 20 , claws 30 and a light source (not shown in FIG. 1 ). The wire 40 of the light source extends from the backboard 20 to the outside of the backboard 20 and is connected to a connecting piece (not shown in the figure) so as to be connected to the power supply. As shown in the figure, wire holders or claws 30 are generally used to fix the exposed wires 40, but this fixing method is likely to cause the wires 40 to exceed the edge of the backplane 20 when the backlight module is assembled, as shown in the drawing. The direction A shown moves outwards, which interferes with other mechanisms and causes the wire 40 to be broken.

Contents of the invention

In order to solve the above problems, one of the objects of the present invention is to provide a wire fixing device for a backlight module, which uses the protruding part of the back plate and the claw on the plastic frame to fix the light source wire, so as to avoid the deviation of the light source wire and prevent the lamp The source lead is pulled and the lamp tube is broken.

One of the objectives of the present invention is to provide a wire fixing device for a backlight module. In a limited space, the light source wires are fixed by using the protrusions of the back plate and the claws on the plastic frame, which not only conforms to the narrow frontal design but also does not An additional wire fixing frame is required, which can save costs.

In order to achieve the above object, a wire fixing device for a backlight module according to an embodiment of the present invention includes: a back frame with a wire outlet located on one side of the back frame, wherein the side has a plurality of protrusions, wherein the back frame The frame further includes a bottom plate, the side protrudes upward relative to the plane direction of the bottom plate; a light source wire; and a plastic frame with a plurality of claws, and the claws define a wire toward any protruding portion The slots are used to fix the light source wires coming out from the wire outlets, wherein the claws protrude from the side of the back frame and the openings face the light source wires.

In order to achieve the above object, the backlight module according to another embodiment of the present invention includes: a back frame with a plurality of protrusions on the sides of the back frame, wherein the back frame further includes a bottom plate, and the sides are opposite to each other. It protrudes upwards in the plane direction of the bottom plate; at least one light source is arranged on the back frame, wherein the light source has a light source wire; and a plastic frame has a plurality of claws, and the claws protrude toward any A wire groove is defined in the upper portion to fix the light source wires that come out from the wire outlet end of the back frame, wherein the claws protrude from the side of the back frame and the openings face the light source wires.

Through the above-mentioned technical features, the beneficial effect of the present invention is to use the retaining wall formed by the protrusion on the back frame to avoid the offset of the light source wire, and define a wire groove to fix and accommodate the light source wire with the clasp formed by the rubber frame. Prevent the light source wire from being pulled and causing the lamp tube to break. In addition, the above-mentioned requirements can be completed in a limited space, and no additional lead frame is required for fixing, which can save costs.

In the following, detailed descriptions will be given in conjunction with the accompanying drawings through specific embodiments, so that it will be easier to understand the purpose, technical content, characteristics and effects of this creation.

Description of drawings

FIG. 1 is a partial schematic diagram of a backlight module in the prior art.

FIG. 2 is an exploded schematic diagram of a backlight module according to an embodiment of the present invention.

FIG. 3 is a partial schematic diagram of a wire fixing device for a backlight module according to another embodiment of the present invention.

Explanation of symbols in the figure:

10, 100 backlight module

20 Backplane

30, 132, 132’ claws

40 wires

110 back frame

111 side

112 Protrusion

113 Bottom plate

120 light source

122 Lamp wire

130 plastic frame

A direction

B Outlet terminal

C Wireway

Detailed ways

FIG. 2 is an exploded view of a backlight module according to an embodiment of the invention. In this embodiment, the backlight module 100 includes a back frame 110 , a light source 120 and a plastic frame 130 . The back frame 110 and the plastic frame 130 can be engaged with each other to hold the light source 120 and the light source wire 122 after being assembled. As shown in the figure, the back frame 110 is, for example, made of metal material, and has a plurality of protrusions 112 located at appropriate positions, such as the side 111 of the back frame 110 . In one embodiment, the back frame 110 further includes a bottom plate 113 . The light source 120 is arranged on the back frame 110, and has a light source lead wire 122, which goes out from the outlet end B of the back frame 110. Shrink sleeve or insulating plastic material to cover. The plastic frame 130 can be engaged with the back frame 110 to clamp the light source 120 and has a plurality of claws 132, for example, located on the side of the plastic frame 130, wherein any claw 132 faces any protrusion 112 on the back frame 110 . Avoid scratching of the lamp wire 122 due to external force deviation. In addition, in this embodiment, any claw 132' can also protrude from the side 111 of the back frame 110 and the opening of the claw 132' faces the light wire 122.

Continuing the above description, in this embodiment, the material of the back frame 110 is metal, such as aluminum plate, and has a groove for conveniently arranging the light source 120 . Wherein, the light source 120 is suitable for any one of the direct type backlight module and the edge type backlight module. Furthermore, the back frame 110 and the protruding portion 112 are integrally formed.

Next, please refer to FIG. 3. FIG. 3 is a partial schematic view of the wire fixing device after the backlight module is assembled according to the previous embodiment. The positional relationship between the claws 132 , 132 ′ of the frame 130 (not shown in the figure), but the positions of the claws 132 , 132 ′ and the protruding portion 112 in the figure is only an example and does not limit the present invention. As shown in the figure, the back frame 110, for example, is made of metal material, has an outlet B located on a side 111 of the back frame 110 and has a plurality of protruding parts 112 on the side 111, wherein the back frame 110 is on the side 111. The protruding portion 112 is integrally formed. In one embodiment, the back frame 110 may further include a bottom plate 113 . The light source wire 122 of the light source goes out from the wire outlet B of the back frame 110 to facilitate connection with an external power source. The plastic frame 130 can be engaged with the back frame 110 and has a plurality of claws 132 , 132 ′ at relative positions to the protrusions 112 of the back frame 110 , wherein any claw 132 faces any protrusion 112 to jointly define a The wire trough C is used to fix the light source wire 122 coming out from the wire outlet B. In this embodiment, any claw 132' can protrude from the side 111 of the back frame 110 and its opening faces the light source wire 122, which can effectively fix the light source wire 122 and make it difficult to shift. In order to prevent the protruding part 112 of the back frame 110, the claws 132, 132' on the plastic frame 130 or other parts from scratching the light source wire 122, the light source wire 122 and the back surface can be covered with a heat shrinkable sleeve or insulating tape. Protrusion 112 on frame 110 . Moreover, the design of the wire fixing device can be applied to a direct type backlight module or an edge type backlight module.

The above-described embodiments are only to illustrate the technical ideas and characteristics of the present invention, and its purpose is to enable those who are familiar with this art to understand the content of the present invention and implement it accordingly, and should not limit the patent scope of the present invention, that is, All equivalent changes or modifications made according to the spirit disclosed in the present invention should still fall within the patent scope of the present invention.

Claims (11)

1. the wire fixing device of a backlight module is characterized in that comprising:

One back of the body frame has a leading-out terminal and is positioned at one of this back of the body frame side, and this side has a plurality of protuberances, and wherein, this back of the body frame more comprises a base plate, and this side is up given prominence to respect to the in-plane of this base plate;

One lamp source lead; And

One glue frame has a plurality of button pawls, and those button pawls define a metallic channel in order to fixing this lamp source lead by this leading-out terminal outlet towards arbitrary this protuberance, and wherein those button pawls protrude from the side of this back of the body frame and opening part towards this lamp source lead.

2. the wire fixing device of backlight module as claimed in claim 1 is characterized in that, the material of this back of the body frame is a metal.

3. the wire fixing device of backlight module as claimed in claim 1 is characterized in that, more comprises a heat-shrinkable T bush in order to coat this lamp source lead.

4. the wire fixing device of backlight module as claimed in claim 1 is characterized in that, more comprises an insulating gel material in order to coat this lamp source lead.

5. the wire fixing device of backlight module as claimed in claim 1 is characterized in that, the wire fixing device of this backlight module be applicable to direct type backlight module and side light type back light module one of them.

6. a backlight module is characterized in that, comprises:

One back of the body frame has a plurality of protuberances in one of this back of the body frame side, and wherein, this back of the body frame more comprises a base plate, and this side is up given prominence to respect to the in-plane of this base plate;

At least one lamp source is arranged on this back of the body frame, and wherein this lamp source has a lamp source lead; And

One glue frame has a plurality of button pawls, and those button pawls define a metallic channel in order to fixing this lamp source lead by the outlet of one of this back of the body frame leading-out terminal towards arbitrary this protuberance, and wherein those are detained pawls and protrude from the side of this back of the body frame and opening part towards this lamp source lead.

7. backlight module as claimed in claim 6 is characterized in that, the material of this back of the body frame is a metal.

8. backlight module as claimed in claim 6 is characterized in that, more comprises a heat-shrinkable T bush in order to coat this lamp source lead.

9. backlight module as claimed in claim 6 is characterized in that, this back of the body frame has a groove in order to this lamp source to be set.

10. backlight module as claimed in claim 6 is characterized in that, this lamp source be applicable to direct type backlight module and side light type back light module one of them.

11. backlight module as claimed in claim 6 is characterized in that, those protuberances and this back of the body frame are formed in one.

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