CN101886791A - Lamp holder and backlight module - Google Patents

Abstract

A lamp tube fixing frame and a backlight module, wherein the lamp tube fixing frame comprises a back plate clamping portion, a lamp tube clamping portion, a lamp tube abutting portion, an anti-shake clamping portion and an anti-skid portion. The back plate clamping portion has a first clamping space formed by bending a substrate. The lamp tube clamping portion has a second clamping space formed by a first spring sheet group. The lamp tube abutting portion is arranged at the first end of the substrate and forms an angle with the substrate. The anti-shake clamping portion has a third clamping space formed by a third spring sheet group, and the third clamping space partially overlaps with the first clamping space. The anti-skid portion is arranged on the substrate and protrudes toward the inside of the first clamping space. Through the present invention, the light source can be effectively prevented from shaking, and assembly is convenient.

Description

Lamp holder and backlight module

technical field

The invention relates to a lamp tube fixing frame and a backlight module, in particular to a fixing structure between the low voltage end of the lamp tube and the back plate.

Background technique

Currently, liquid crystal display devices (LCDs) have been widely used in various electronic devices such as computer monitors and televisions. The liquid crystal display device is mainly composed of a liquid crystal display panel and a backlight module matched with it. The liquid crystal display panel is generally composed of two upper and lower glass substrates. Through various manufacturing processes, the thin film transistor (TFT) is formed The matrix is set on the lower glass substrate, and a liquid crystal layer is filled between the upper and lower glass substrates. The direction of the liquid crystal molecules is controlled by each thin film transistor to achieve different light transmittance, and the light source is provided by the backlight module. In the lamp tube type backlight module, the lamp tube (such as cold cathode fluorescent lamp) is usually fixed by welding and using a socket. The welding method usually consists of a copper sheet coupled with several rubber caps for welding, the process is more complicated and the cost is higher. At present, most of the fixing parts are used to cooperate with plastic parts, so there will be gaps in the assembly, which will cause shaking and cause noise of the light source.

Contents of the invention

Aiming at the above-mentioned technical problems, the present invention designs the lamp tube fixing frame, which does not need additional plastic parts on the fixing frame, as long as it is directly fixed to the backboard, and does not need any fixing screws to fix, which can reduce the number of screws and low-voltage wires The cost and the locking man-hours of related screws.

The lamp tube fixing frame provided by the present invention is used to fix the lamp tube on the backboard. . The backplane clamping portion has a first clamping space formed by bending the substrate, the substrate has a first end and a second end along a first direction, and the substrate has a first side and a second side along a second direction. The clamping portion of the lamp tube has a second clamping space formed by a first set of elastic sheets, the fixed ends of the first set of elastic sheets are respectively arranged on the first side and the second side of the base plate, and the first set of elastic sheets The free ends of each extend away from the first clamping space, and both have guide segments. The lamp tube resisting portion is disposed on the first end of the base plate and forms an included angle with the base plate. The anti-shake clamping part has a third clamping space formed by a third elastic sheet group, the fixed ends of the third elastic sheet group are respectively arranged on the first side and the second side of the substrate, and the third elastic sheet group The free ends of each extend toward the direction close to the first clamping space, and the third clamping space partially overlaps with the first clamping space. The anti-slip part is disposed on the base plate and protrudes toward the inside of the first clamping space.

According to the lamp tube fixing frame of the present invention, the anti-slip part and the base plate are integrally formed.

According to the lamp tube fixing frame of the present invention, the protrusion of the anti-slip part is a lug or a convex circle.

According to the lamp tube fixing frame of the present invention, the lamp tube clamping portion further includes a second elastic sheet group, which is arranged on the base plate side by side with the first elastic sheet group along the first direction. Further, the anti-shake clamping part is arranged between the first elastic sheet group and the second elastic sheet group.

According to the lamp tube fixing frame of the present invention, the second end of the base plate has a guiding section.

The backlight module provided by the present invention includes a lamp tube, a back panel and the above-mentioned lamp tube fixing frame. The backplate contains clip holders. The lamp tube is arranged in the second clamping space of the lamp tube fixing frame, and the clamp seat is arranged in the overlapping portion of the first clamping space and the third clamping space.

According to the backlight module of the present invention, the holder is formed by punching holes on the backplane.

According to the backlight module of the present invention, the clamp seat has a folded edge along the second direction, and the folded edge is against the anti-shake clamping part.

According to the backlight module of the present invention, the clip seat includes a fastening hole, and the fastening hole cooperates with the anti-slip part.

Compared with the prior art, the present invention has advantages in terms of cost and anti-shaking, and is also quite convenient in assembly.

Description of drawings

Fig. 1 is a schematic structural view of a light tube fixing frame according to an embodiment of the present invention;

Fig. 2A is a schematic front view of a light tube fixing frame according to an embodiment of the present invention;

Fig. 2B is a schematic side view of a light tube fixing frame according to an embodiment of the present invention;

3 is a schematic structural view of a backlight module according to an embodiment of the present invention;

Fig. 4 is a schematic structural view of a clamp seat according to an embodiment of the present invention;

Fig. 5A is a schematic cross-sectional view of a lamp tube fixing frame and a backboard fixed according to an embodiment of the present invention;

FIG. 5B is a schematic cross-sectional view of another embodiment of the present invention after fixing the lamp tube fixing frame and the backboard.

Detailed ways

In order to have a further understanding of the purpose, structure, features, and functions of the present invention, the following detailed descriptions are provided in conjunction with the embodiments.

Please refer to FIG. 1 . FIG. 1 is a schematic structural diagram of a light tube fixing frame 10 according to an embodiment of the present invention. The lamp tube fixing frame 10 is used to fix the lamp tube on the backboard. The lamp tube fixing frame 10 includes a backplane clamping part 11, a lamp tube clamping part 12, a lamp tube interference part 13, an anti-shake clamping part 14 and an anti-slip part 15. Please refer to FIG. 2A and FIG. 2B together. FIG. 2A is a schematic front view of a light tube fixing frame according to an embodiment of the present invention, and FIG. 2B is a schematic side view of a light tube fixing frame according to an embodiment of the present invention. The backplane clamping portion 11 has a first clamping space 110 bent by a substrate 111, the substrate 111 has a first end 113 and a second end 114 along a first direction, and the substrate 111 has a first side along a second direction side 115 and second side 116 . In practical applications, the second end 114 of the substrate 111 has a guiding section. The lamp clamping portion 12 has a second clamping space 120 formed by a first elastic sheet group 121 , and the fixed ends 123 of the first elastic sheet group 121 are respectively arranged on the first side 115 and the second side 116 of the base plate 111 , the free ends 124 of the first elastic sheet group 121 respectively extend in a direction away from the first clamping space 110 , and both have guiding sections. The lamp tube resisting portion 13 is disposed on the first end 113 of the base plate 111 and forms an included angle with the base plate 111 . The anti-shake clamping part 14 has a third clamping space 140 formed by a third elastic sheet group 141, the fixed ends of the third elastic sheet group 141 are respectively arranged on the first side 115 and the second side 116 of the substrate 111, and the third The free ends of the elastic sheet sets 141 respectively extend towards the direction close to the first clamping space 110 , and the third clamping space 140 and the first clamping space 110 partially overlap. The anti-slip portion 15 is disposed on the base plate 111 and protrudes toward the inside of the first clamping space 110 . In practical applications, the anti-skid portion 15 is integrally formed with the base plate 111 .

In one embodiment, the lamp clamping portion 12 further includes a second elastic piece set 122 disposed on the base plate 111 side by side with the first elastic piece set 121 along the first direction. Further, the anti-shake clamping portion 14 is disposed between the first elastic sheet group 121 and the second elastic sheet group 122 .

Please refer to FIG. 3 . FIG. 3 is a schematic structural diagram of a backlight module 3 according to an embodiment of the present invention. The backlight module 3 includes a light tube 31 , a backboard 32 and a light tube fixing frame 30 . The structure of the lamp tube fixing frame 30 is similar to that of the above lamp tube fixing frame 10 . The light tube fixing frame 30 includes a back plate clamping portion 31 , a light tube clamping portion 32 , a light tube interference portion (not shown in FIG. 3 ), an anti-shake clamping portion 34 and an anti-slip portion (not shown in FIG. 3 ). The backplane clamping part 31 has a first clamping space formed by bending the substrate. The substrate has a first end and a second end along the first direction X, and the substrate has a first side and a second end along the second direction Y. side. The lamp tube clamping portion 32 has a second clamping space 302 formed by the first elastic sheet group. The anti-shake clamping portion 34 has a third clamping space formed by a third group of elastic plates. The backboard 32 includes a holder 320 . The lamp tube 31 is disposed in the second clamping space 302 of the lamp tube fixing frame 30 , and the clamp seat 320 is disposed in the overlapping portion 313 of the first clamping space and the third clamping space. The anti-shake clamping part 34 is designed to be compressed on both sides of the clamping seat 320, which can solve the problem of light source noise caused by forming and assembly tolerances.

Please refer to FIG. 4 in conjunction with FIG. 4 , which is a schematic structural diagram of the clip holder 320 according to an embodiment of the present invention. In one embodiment, the holder 320 is formed by punching the back plate 32 . The clip seat 320 has a folded edge 321 along the second direction Y, and the folded edge 321 abuts against the anti-shake clamping portion 34 . The clip seat 320 also includes a fastening hole 322 , and the fastening hole 322 is matched with the anti-slip part.

In the present invention, the protrusion of the anti-slip part may be a tab or a convex circle. For a clearer description, please refer to FIG. 5A and FIG. 5B. FIG. 5A is a schematic cross-sectional view of the lamp tube fixing frame 40 and the back plate 52 in one embodiment of the present invention after being fixed. FIG. 5B is a lamp tube fixing frame in another embodiment of the present invention. A schematic cross-sectional view of the frame 50 and the back plate 52 fixed. In one embodiment, the light tube fixing frame 40 includes a back plate clamping portion 41, a light tube clamping portion 42, a light tube interference portion 43, an anti-shake clamping portion 44 and an anti-slip portion 45, wherein the anti-slip portion 45 is a protrusion , After the lugs are combined into the fastening hole, it can effectively prevent falling off. In another embodiment, the light tube fixing frame 50 includes a back plate clamping portion 51, a light tube clamping portion 52, a light tube interference portion 53, an anti-shake clamping portion 54 and an anti-slip portion 55, wherein the anti-slip portion 55 is a convex The combination of round and convex round is easy to disassemble and install in the clamping hole, so it is more convenient for rework.

Compared with the prior art, the present invention has advantages in terms of cost and anti-shaking, and is also quite convenient in assembly.

The present invention has been described by the above-mentioned related embodiments, however, the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, changes and modifications made without departing from the spirit and scope of the present invention all belong to the scope of patent protection of the present invention.

Claims (10)

1. A light tube fixing frame for fixing the light tube on the backboard, characterized in that the light tube fixing frame includes: The backplane clamping part has a first clamping space formed by bending the substrate, the substrate has a first end and a second end along the first direction, and the substrate has a first side and a second side along the second direction ; The clamping part of the lamp tube has a second clamping space formed by a first elastic sheet group, the fixed ends of the first elastic sheet group are respectively arranged on the first side and the second side of the base plate, and the first elastic sheet The free ends of the group respectively extend in a direction away from the first clamping space, and all have guide segments; The lamp tube interference part is arranged at the first end of the substrate and forms an included angle with the substrate; The anti-shake clamping part has a third clamping space formed by a third elastic sheet group, the fixed ends of the third elastic sheet group are respectively arranged on the first side and the second side of the substrate, and the third elastic sheet The free ends of the groups respectively extend towards the direction close to the first clamping space, and the third clamping space partially overlaps with the first clamping space; The anti-slip part is arranged on the base plate and protrudes toward the inside of the first clamping space. 2 . The light tube fixing frame according to claim 1 , wherein the anti-skid portion is integrally formed with the base plate. 3 . 3. The light tube fixing frame according to claim 1, wherein the protrusion of the anti-slip part is a protruding piece or a convex circle. 4 . The light tube fixing frame according to claim 1 , wherein the light tube clamping portion further comprises a second elastic piece set, which is disposed on the base board side by side with the first elastic piece set along the first direction. 5 . The light tube fixing frame according to claim 4 , wherein the anti-shake clamping portion is disposed between the first elastic sheet group and the second elastic sheet group. 6 . 6. The light tube fixing frame as claimed in claim 1, wherein the second end of the base plate has a guiding section. 7. A backlight module, characterized in that it comprises: light tube; a backplane, including clip holders; and The light tube fixing frame according to any one of claims 1-6, wherein the light tube is disposed in the second clamping space, and the clamp seat is disposed between the first clamping space and the third clamping space Overlap. 8. The backlight module according to claim 7, wherein the holder is formed by punching holes on the back plate. 9. The backlight module as claimed in claim 7, wherein the holder has a folded edge along the second direction, and the folded edge abuts against the anti-shake clamping portion. 10 . The backlight module according to claim 7 , wherein the clip seat includes a fastening hole, and the fastening hole is matched with the anti-skid portion. 11 .

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