CN201093217Y

CN201093217Y - Tube group and back light module unit thereof

Info

Publication number: CN201093217Y
Application number: CNU2007200694840U
Authority: CN
Inventors: 崔品静
Original assignee: SVA Group Co Ltd
Current assignee: SVA Group Co Ltd
Priority date: 2007-04-28
Filing date: 2007-04-28
Publication date: 2008-07-30
Anticipated expiration: 2017-04-28

Abstract

The utility model discloses a lighting tube group and a back light module group thereof. The lighting tube group comprises a plurality of lighting tubes, high tension wires and a connector. The high-voltage terminals of the lighting tubes are connected with the connector via the high tension wires. The low-voltage terminals of at least two lighting tubes form a loop through the high tension wires. The lighting tube group and the back light module of the utility model save abundant material consumption, leave out the assembling man-hour of cleaning up and fixing low-voltage wires, decrease the difficulty of heave work, improve the design flexibility and the productivity effect.

Description

Light tube group and module backlight thereof

Technical field

The utility model relates to a kind of light tube group and module backlight thereof, particularly a kind of down straight aphototropism mode set that is used for the light tube group of LCD and uses this light tube group.

Background technology

LCD (LCD) is widely used in computer, communication apparatus, television set and other various displays.General LCD mainly is made up of liquid crystal panel and module backlight.Wherein liquid crystal panel itself is not luminous, and the light source of panel is provided by module backlight.Module backlight can be divided into two kinds of side-light type and straight-down negatives, and wherein down straight aphototropism mode set is widely used on TV and the large-scale LCD.The down straight aphototropism mode set used of the TV of main flow adopts several straight shape CCFLs more (Cold Cathode Fluorescent Lamps CCFL) evenly is arranged in parallel in the market.

At present general down straight aphototropism mode set is by a lamp box, and the straight shape cathode fluorescent tube of many parallel equidistant arrangements and some blooming pieces constitute.Fig. 1 is the light tube group configuration mode of existing down straight aphototropism mode set, a light tube group comprises several straight lamp tubes 1, this fluorescent tube configuration mode, need weld high-tension bus-bar 2 and low tension wire 3 respectively at the high-pressure side and the low-pressure end of fluorescent tube 1, weld covers with high-pressure side rubber sleeve 4 and low-pressure end rubber sleeve 5 respectively, the high-tension bus-bar 2 of every adjacent two fluorescent tubes is connected on the connector 6, connector 6 links to each other with inverter 7, all low tension wires are welded on the conductor 8, link to each other with connector 10 with a low tension loop electric wire 9, described connector 10 is connected on the inverter 7, and described inverter 7 is used to drive fluorescent tube high-pressure side electrode discharge.

There is following shortcoming in the light tube group of existing down straight aphototropism mode set: the low tension wire 3 that is connected the light tube group low-pressure end need link together with a conductor 8, extend to inverter 7 places by a low tension loop electric wire 9 again, low tension loop electric wire 9 links to each other by connector 10 with inverter 7, needs a large amount of conductor costs, low pressure wire rod cost and connector cost like this; The arrangement of low tension loop electric wire need adopt gum to be fixed on the metal backing outside, therefore, also needs the cost of adhesive tape, and will consider the placement location of low tension loop electric wire in the metal backing design, has increased design man-hour; The conductor that connects the fluorescent tube low tension wire is generally harder metal or circuit board, and is dumb on design is used; Assembling process is loaded down with trivial details consuming time, and the generation of gum residue problem is arranged, and can increase the difficulty of heavy industry.

The utility model content

Therefore, the technical problem that solves of the utility model provide and a kind ofly save that material expends, applying flexible, light tube group easy to assembly and use the down straight aphototropism mode set of this light group.

For achieving the above object, light tube group of the present utility model, comprise several fluorescent tubes, high-tension bus-bar, connector, the high-pressure side of described fluorescent tube is connected on the connector by high-tension bus-bar, and the low-pressure end that wherein has two fluorescent tubes at least is by the continuous loop that forms of high-tension bus-bar.

Module backlight of the present utility model, comprise a lamp box, a light tube group, some blooming pieces, described light tube group comprises several fluorescent tubes, high-tension bus-bar, connector, the high-pressure side of described fluorescent tube is connected on the connector by high-tension bus-bar, and the low-pressure end that wherein has two fluorescent tubes at least is by the continuous loop that forms of high-tension bus-bar.

The quantity of described fluorescent tube can be even number, and the low-pressure end of every adjacent two fluorescent tubes links to each other by high-tension bus-bar and forms the loop.

The high-pressure side of described fluorescent tube, low-pressure end can be connected by welding manner with high-tension bus-bar, and the solder joint of high-pressure side and low-pressure end is covered by high pressure rubber cover and low pressure rubber sleeve respectively.

By light tube group of the present utility model and module backlight thereof, because the low-pressure end of fluorescent tube is connected to form the loop by high-voltage line, and be connected on the same connector by the high-voltage line of high-pressure side, compare with existing light tube group structure, the conductor and the low pressure earth-return circuit electric wire that connect low tension wire have been saved, save the adhesive tape and the connector that the earth-return circuit electric wire is connected with inverter of fixed light pipeline, saved inventory charge greatly; The low-pressure end of fluorescent tube links to each other with flexible high-tension bus-bar, has increased design and application flexibility; Save arrangement and fixing assembling man-hour of low pressure earth-return circuit electric wire simultaneously, reduced the difficulty of heavy industry, improved production efficiency.

Description of drawings

Fig. 1 is the light tube group schematic diagram of existing down straight aphototropism mode set;

Fig. 2 is the light tube group schematic diagram of the utility model down straight aphototropism mode set;

Fig. 3 has been to use the structural representation of down straight aphototropism mode set of the present utility model;

Fig. 4 is the vertical view of Fig. 3;

Fig. 5 is the local enlarged diagram of the utility model light tube group low-pressure end;

Fig. 6 is the local enlarged diagram of the utility model light tube group high-pressure side.

Accompanying drawing part symbol description:

1,21: fluorescent tube; 3: low tension wire;

2,22,23: high-tension bus-bar; 4,24: the high-pressure side rubber sleeve;

5,25: the low-pressure end rubber sleeve; 6,10,26: connector;

7,27: inverter; 8: conductor;

9, low tension loop electric wire; 31: lamp box;

32: light tube group; 33: blooming piece;

311: frame; 312: perforate;

34: the viewing area.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 2 is the light tube group structural representation of the utility model down straight aphototropism mode set, as shown in Figure 2, light tube group of the present utility model comprises several fluorescent tubes 21, high-tension bus-

bar

22 and 23, connector 26, described fluorescent tube 21 can be straight shape, the cathode fluorescent tube of shapes such as U-shaped (CCFL), thermal cathode fluorescent tube (HCFL) or external electrode fluorescent lamp (EEFL) fluorescent tube, the high-pressure side of per two adjacent fluorescent tubes 21 links to each other by a high-tension bus-bar 22, the low-pressure end of every adjacent two fluorescent tubes 21 is connected with on a connector 26 by two high-tension bus-bars 23, connector 26 is connected with inverter 27, realizes that the high-pressure side discharge drives.

The high-pressure side of described fluorescent tube 21, low-pressure end and high-tension bus-

bar

22,23 are connected by welding manner, the solder joint of high-pressure side and low-pressure end is covered by high pressure rubber cover 24 and low pressure rubber sleeve 25 respectively, and

rubber sleeve

24 and 25 can be fixed a fluorescent tube respectively also can fix a plurality of fluorescent tubes simultaneously.

The low-pressure end of described fluorescent tube 21, high-pressure side and high-tension bus-

bar

22,23 can also by connector or screw crimping, shell fragment crimping etc. reliably mode be connected.

Fig. 3 is the structural representation of the utility model down straight aphototropism mode set, as shown in Figure 3, down straight aphototropism mode set is made up of a lamp box 31, light tube group 32 and some blooming pieces 33, described blooming piece 33 is for having the blooming piece of diffusion or light-focusing function, as diffuser plate, diffusion sheet or prismatic lens etc.

Fig. 4 is the vertical view of Fig. 3, the lamp box 31 of this down straight aphototropism mode set comprises a frame 311 and is positioned at a perforate 312 of middle section, this perforate defines a viewing area 34, module transmission display wherein backlight district 34, for LCD light provides the source, the low-pressure end of light tube group 32 and high-tension bus-bar 23 junctions and high-tension bus-bar 2 place the outside of viewing area 34, can improve all spending together of light.

Fig. 5 is the local enlarged diagram of fluorescent tube low-pressure end, and the low-pressure end of two tubes 21 utilizes high-tension bus-bar 23 to be weldingly connected into the loop.

Fig. 6 is the local enlarged diagram of fluorescent tube high-pressure side, and the high-pressure side of two tubes 21 and electric wire 22 are weldingly connected, and electric wire 22 is connected on the connector 26.

The light tube group configuration mode of the down straight aphototropism mode set that present embodiment provided, saved conductor that low-pressure end connects at least one, at least one in low tension loop electric wire, the connector that links to each other with return wire at least one, and assemble very conveniently, flexible, saved material and expended and assemble man-hour.

Claims

1. light tube group, comprise several fluorescent tubes (21), high-tension bus-bar (22), connector (26), the high-pressure side of described fluorescent tube (21) is connected on the connector (26) by high-tension bus-bar (22), it is characterized in that having at least the low-pressure end of two fluorescent tubes (21) by the continuous loop that forms of high-tension bus-bar (23).

2. light tube group according to claim 1 is characterized in that, the quantity of described fluorescent tube (21) is even number, and the low-pressure end of every adjacent two fluorescent tubes (21) links to each other by high-tension bus-bar (23) and forms the loop.

3. light tube group according to claim 1 and 2 is characterized in that, the low-pressure end of described fluorescent tube (21), high-pressure side are connected by welding manner with (23) with high-tension bus-bar (22).

4. light tube group according to claim 3 is characterized in that, the junction of described high-pressure side and low-pressure end and high-tension bus-bar (22) and (23) is coated with rubber sleeve (24) and (25).

5. module backlight, comprise a lamp box (31), a light tube group (32), some blooming pieces (33), described light tube group comprises several fluorescent tubes (21), high-tension bus-bar (22), connector (26), the high-pressure side of described fluorescent tube (21) is connected on the connector (26) by high-tension bus-bar (22), it is characterized in that having at least the low-pressure end of two fluorescent tubes (21) by the continuous loop that forms of high-tension bus-bar (23).

6. module backlight according to claim 5 is characterized in that, the quantity of described fluorescent tube (21) is even number, and the low-pressure end of every adjacent two fluorescent tubes (21) links to each other by high-tension bus-bar (23) and forms the loop.

7. according to claim 5 or 6 described modules backlight, it is characterized in that the low-pressure end of described fluorescent tube (21), high-pressure side are connected by welding manner with (23) with high-tension bus-bar (22).

8. module backlight according to claim 7 is characterized in that, the junction of described high-pressure side and low-pressure end and high-tension bus-bar (22) and (23) is coated with rubber sleeve (24) and (25).

9. according to claim 5,6 or 8 described modules backlight, it is characterized in that the junction of the low-pressure end of described light tube group (32) and high-tension bus-bar (23) and high-tension bus-bar (23) place the outside of viewing area (34).

10. module backlight according to claim 5 is characterized in that, described blooming piece (33) comprises diffusion sheet, prismatic lens.