CN201568797U

CN201568797U - Led lamp strip

Info

Publication number: CN201568797U
Application number: CN2010200467270U
Authority: CN
Inventors: 潘建伟; 孙玉敏; 肖立川; 张智钦
Original assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Current assignee: BOE Technology Group Co Ltd; Chengdu BOE Optoelectronics Technology Co Ltd
Priority date: 2010-01-04
Filing date: 2010-01-04
Publication date: 2010-09-01
Anticipated expiration: 2020-01-04

Abstract

The utility model provides a LED lamp strip, including a PCB and at least a LED, the LED is provided with a first electrode contact, the PCB is provided with grooves which number is equal to that of the LED, each groove is provided with a second electrode contact, the shape and dimension of the groove are matched with the LED, the LED is fixed in the groove in a collapsible mode, and the first electrode contact is contacted with the second electrode contact after the LED is fixed in the groove. According to the utility model, if one LED is damaged, the LED may be fetched from the groove without replacing of the whole LED lamp strip, so as to prevent LED from wastage. The LED is fixed in the groove on the PCB in the collapsible mode, such that the LED is electrically communicated with the PCB by contacting the first electrode contact and the second electrode contact without complex SMT, which may reduce production cost of the LED lamp strip.

Description

LED lamp bar

Technical field

The utility model embodiment relates to the Display Technique field, relates in particular to a kind of light emitting diode (LightEmitting Diode is called for short LED) lamp bar.

Background technology

LED on the common LED lamp bar is welded on the printed circuit board (PCB) both positive and negative polarity of (Printed Circuit Board is called for short PCB) by surface mounting technology (Surface MountedTechnology is called for short SMT).Be LED lamp bar structural representation in the prior art as shown in Figure 1a, Fig. 1 b is the partial enlarged drawing of A part among Fig. 1 a.The both positive and negative polarity sheet metal 2 of LED1 is soldered on the PCB3.

Because be connected by scolding tin between the positive and negative sheet metal of LED and the PCB, melts soldering tin need be disassembled LED from PCB, so as easy as rolling off a log like this damage LED is in the prior art, damage if in the process of assembled LED lamp bar, find certain LEDs, need to change whole LED lamp bar.Other unspoiled LED also can together go out of use on the LED lamp bar like this, have caused the waste of LED.And,, further increased the production cost of LED lamp bar owing to the SMT complex process.

The utility model content

The utility model embodiment provides a kind of LED lamp bar, cause the problem that thereby other LED go out of use and cause LED to waste on the whole LED lamp bar in order to certain LED damage on the LED lamp bar in the solution prior art, and employing SMT causes the high problem of production cost in the process of making LED lamp bar in the prior art in order to solve.

The utility model embodiment provides a kind of LED lamp bar, comprise PCB and at least one LED, described LED is provided with first electrode contacts, described PCB is provided with the quantity groove identical with LED quantity, described groove is provided with second electrode contacts, and the shape and size of described groove and described LED are complementary, and described LED is fixed in described groove with removably, after described LED was fixed in described groove, described first electrode contacts contacted with described second electrode contacts.

Wherein, the size of described groove can be slightly less than the size of described LED, make described LED by and described groove between frictional force be fixed in described groove.

Described LED bottom can be provided with double faced adhesive tape, and described LED is fixed in described groove by described double faced adhesive tape.

Can be provided with projection on the described LED, described recess sidewall is provided with the depression that matches with described projection, and described LED is engaged to described depression to be fixed in described groove by described projection.

Can be provided with projection on the described LED, the sidewall of described groove is provided with the elastic fastening hook that matches with described projection, and described LED is engaged to described elastic fastening hook to be fixed in described groove by described projection.

Described first electrode contacts is arranged on the bottom or sidewall of described LED, and the position of described second electrode contacts is corresponding with described first electrode contacts.

The LED lamp bar that the utility model provides, each LED is fixed in each groove on the PCB with removably, if certain LED damages, this LED can be taken out from groove, with the LED of new LED replace damaged, and need not, thereby avoided the waste of LED the whole replacing of LED lamp bar.And LED is fixed in the groove on the PCB with removably, by first electrode contacts and the contact of second electrode contacts being realized the electric connection between LED and the PCB, need not complicated SMT, can reduce the production cost of LED lamp bar.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 a is depicted as LED lamp bar structural representation in the prior art;

Fig. 1 b is the partial enlarged drawing of A part among Fig. 1 a;

Figure 2 shows that the structural representation of the utility model LED lamp bar first embodiment;

Figure 3 shows that the structural representation of the utility model LED lamp bar second embodiment;

Fig. 4 a is depicted as the structural representation of the utility model LED lamp article the 3rd embodiment;

Fig. 4 b is the partial enlarged drawing of B part among Fig. 4 a.

The specific embodiment

For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.

Be illustrated in figure 2 as the structural representation of the utility model LED lamp bar first embodiment, this LED lamp bar comprises PCB3 and at least one LED1, LED1 is provided with first electrode contacts 5, PCB3 is provided with the quantity groove 4 identical with LED1 quantity, groove 4 is provided with second electrode contacts 6, and the size and the LED1 of groove 4 are complementary, and LED1 is fixed in groove 4 with removably, after LED1 was fixed in groove 4, first electrode contacts 5 contacted with second electrode contacts 6.First electrode contacts 5 on the LED1 contacts the electric connection that just can realize between LED1 and the PCB3 with second electrode contacts 6 on the groove of PCB.

LED lamp bar shown in Figure 2, each LED is fixed in each groove on the PCB with removably, if certain LED damages, this LED can be taken out from groove, with the LED of new LED replace damaged, and need not, thereby avoided the waste of LED the whole replacing of LED lamp bar.And LED is fixed in the groove on the PCB with removably, by first electrode contacts and the contact of second electrode contacts being realized the electric connection between LED and the PCB, need not complicated SMT, can reduce the production cost of LED lamp bar.

Detachable fixed form between the groove on LED and the PCB is meant, LED is disassembled from pcb board, can not damage LED, also can not damage pcb board, but is a kind of fixed form of nondestructive demounting.Detachable fixed form between the groove on LED and the PCB can have multiple.

In the LED lamp bar as shown in Figure 2, the size of groove 4 can be slightly less than the size of LED1, and LED1 can be extruded in the groove 4, and the frictional force between LED1 and the groove 4 can not fall down so that LED1 is fixed in groove 4.LED1 is extruded to after the groove 4, and first electrode contacts 5 on the LED1 contacts with second electrode contacts 6 of groove 4 bottoms.Between groove 4 and the LED1 be a kind of interference fit in fact.Take out LED1 if desired, only need apply the external force greater than the frictional force between LED1 and the groove 4 on LED1 can take out LED1 from groove 4.

In the LED lamp bar as shown in Figure 2, can be connected by double faced adhesive tape between LED1 and the groove 4.Double faced adhesive tape can be arranged on the bottom of LED1.Among Fig. 2, first electrode contacts 5 on the LED1 is arranged on the bottom of LED1, double faced adhesive tape can partly cover the bottom of LED1, reserves the subregion in the bottom of LED1 and exposes first electrode contacts 5, and the electrode contacts 5 of winning can be contacted with second electrode contacts 6 of groove 4 bottoms.

First electrode contacts 5 on the LED1 also can be arranged on the sidewall of LED1, and the position of second electrode contacts 6 on the groove 4 is corresponding with the position of first electrode contacts, and double faced adhesive tape can all cover the bottom of LED1 in this case.The size of LED1 can be slightly less than the size of groove 4, makes LED1 can insert groove 4, and makes first electrode contacts 5 on the sidewall of LED1 contact with second electrode contacts 6 on groove 4 sidewalls.

Be illustrated in figure 3 as the structural representation of the utility model LED lamp bar second embodiment, in this LED lamp bar, LED is provided with projection 7, and the sidewall of groove 4 is provided with and projection 7 depressions that match 8, and LED1 is engaged to depression 8 to be fixed in groove 4 by projection 7.This projection 7 can be arranged to shapes such as circle or ellipse.

Be depicted as the structural representation of the utility model LED lamp article the 3rd embodiment as Fig. 4 a, Fig. 4 b is the partial enlarged drawing of B part among Fig. 4 a.In this LED lamp bar, LED1 is provided with projection 7, and the sidewall of groove is provided with and projection 7 elastic fastening hooks that match 9, and LED1 is engaged to elastic fastening hook 9 to be fixed in groove 4 by projection 7.Elastic fastening hook 9 comprises extrusion arm 9b and to the outstanding elastic cantilever 9a of inside grooves direction, the bottom of elastic cantilever 9a is connected with extrusion arm 9b.When LED1 snaps in groove 4, the elastic cantilever 9a of the projection 7 extruding elastic fastening hooks 9 on the LED1 is outwards outstanding, LED1 continues to snap in, when arriving the bottom of elastic cantilever 9a of elastic fastening hook 9 when projection 7 top, elastic cantilever 9a restores to the original state, and makes projection 7 be stuck in the bottom of elastic cantilever 9a.When needs take out LED1 from groove 4, exert pressure to the top of extrusion arm 9b, elastic cantilever 9a is outwards outstanding like this, and the top of projection 7 is stopped by the bottom of elastic cantilever 9a that no longer LED1 just can be removed like this.After LED1 is removed, no longer exert pressure to the top of extrusion arm 9b, elastic cantilever 9a restores to the original state.

Among aforementioned each embodiment, first electrode contacts on the LED both can be arranged on the bottom of LED, also can be arranged on the sidewall of LED.The position and first electrode contacts of second electrode contacts on the groove are complementary, and also can be arranged on the bottom or sidewall of groove.The shape of groove need be complementary with the shape of LED, and is not limited to as Fig. 2 to rectangular shape shown in Figure 4.

The LED lamp bar that the utility model provides can be used as LCD (Liquid CrystalDisplay, abbreviation LCD) backlight, the LED lamp bar that LCD employing the utility model provides is as backlight, if certain LEDs damages in assembling process, only needing to take out the single LEDs that damages gets final product, need not to replace whole piece LED lamp bar, can reduce the production cost of LCD.

It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.

Claims

1. LED lamp bar, comprise PCB and at least one LED, it is characterized in that, described LED is provided with first electrode contacts, and described PCB is provided with the quantity groove identical with LED quantity, and described groove is provided with second electrode contacts, the shape and size of described groove and described LED are complementary, described LED is fixed in described groove with removably, and after described LED was fixed in described groove, described first electrode contacts contacted with described second electrode contacts.

2. LED lamp bar according to claim 1 is characterized in that, the undersized of described groove is in the size of described LED, make described LED by and described groove between frictional force be fixed in described groove.

3. LED lamp bar according to claim 1 is characterized in that, described LED bottom is provided with double faced adhesive tape, and described LED is fixed in described groove by described double faced adhesive tape.

4. LED lamp bar according to claim 1 is characterized in that described LED is provided with projection, and described recess sidewall is provided with the depression that matches with described projection, and described LED is engaged to described depression to be fixed in described groove by described projection.

5. LED lamp bar according to claim 1, it is characterized in that, described LED is provided with projection, and the sidewall of described groove is provided with the elastic fastening hook that matches with described projection, and described LED is engaged to described elastic fastening hook to be fixed in described groove by described projection.

6. LED lamp bar according to claim 5 is characterized in that described elastic fastening hook comprises elastic cantilever and extrusion arm, and the bottom of described elastic cantilever is connected with described extrusion arm.

7. according to the described LED lamp of arbitrary claim bar among the claim 1-6, it is characterized in that described first electrode contacts is arranged on the bottom or sidewall of described LED, the position of described second electrode contacts is corresponding with described first electrode contacts.