CN1453498A

CN1453498A - Flexible light-emitting unit and its making process

Info

Publication number: CN1453498A
Application number: CN02117197A
Authority: CN
Inventors: 林原
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-04-25
Filing date: 2002-04-25
Publication date: 2003-11-05
Anticipated expiration: 2022-04-25
Also published as: DE60322619D1; KR20030084759A; JP3970800B2; JP2003347593A; CA2426500A1; KR100967192B1; ATE403827T1; EP1357331A2; EP1357331A3; CN100547282C; CA2426500C; EP1357331B1

Abstract

The flexible light-emitting unit has C.O.B. type LED as light source, and includes one inner layer fixing seat, one LED lamp string, one pair of wires and one outer fixing body. Welded serially connected LED lamp string is inserted into the notch of the pre-formed inner fixing seat, fixed with tow raised strips, connected to one pair of embedded wires electrically, pressed and coated with one outer fixing body. The C.O.B. type LED's layout have stable intervals and identical light source direction.

Description

Flexiblel ight-emitting unit and manufacture method thereof

The present invention is a kind of Flexiblel ight-emitting unit and manufacture method thereof, especially refer to a kind of illuminator applicable to C.O.B. (chip on board) formula LED, this manufacture method, it is internal layer (Inner layer) holder by a moulding in advance, with the LED lamp string group after the welding series connection, be inserted in the groove of inner layer fixed, and can be by two raised lines institute clamping, and LED lamp string group is that a pair of main line of burying underground with inner layer fixed (Main wire) is connected conduction mutually, process via extrusion molding again, and coat a skin (Jacket) fixed body; Like this, can make the laying spacing of C.O.B. formula LED21 stable, and light source direction have uniformity.

According to the present invention, apparatus of the present invention mainly comprise an inner layer fixed, a LED lamp string group, a pair of main line, reach an outer fixed body;

Wherein:

This inner layer fixed is the transparent or semitransparent colloid of a strip, and end face central authorities are provided with groove one, and both sides respectively have raised line one, makes inner layer fixed form a U type section;

This LED lamp string group, by several C.O.B. formulas LED, resistance, and lead welded and be composed in series, and just can be inserted in the groove, and can be by two raised lines institute clamping;

This is to main line, and in parallel two raised lines that are embedded in the inner layer fixed, draw outward or connector is set for wiring, and the front and back ends lead of LED lamp string group, can be connected mutually with two main lines respectively;

This skin fixed body is the colloid identical with inner layer fixed, and by the processing and forming of extrusion, and coats inner layer fixed and be combined into one, and end face and bottom surface all are plane forming surface.

Relevant existing LED illuminator, its formation and technological means, enumerate in after, sincerely please refer to:

Existing LED illuminator, as shown in figure 13, generally be earlier an end of lead 3 and a pin 2a of LED light assembly 2 to be welded, leaning to one side of lead 3 and pile warp LED light assembly 2, and the other end of lead 3 is welded on another pin 2b of LED light assembly 2 is to form a lamp string and to reach the purpose of series connection, penetrate in order to continuing in the hollow sleeve 1 of a circle, and, coat by colloid (figure does not show), and be combined as a whole in the mode of extrusion molding; 2 of adjacent LED light assemblies, there is no any fixed support, and 3 in lead has presented crooked winding state, at this moment, LED light assembly 2 and lead 3 are in the process that penetrates hollow sleeve 1, LED light assembly 2 and lead 3 very easily produce catching phenomenon with the inwall of hollow sleeve 1, and cause adjacent LED light assembly 2 spacings to change, and then force the crooked again phenomenon of lead 3; Therefore, the very difficult purpose that reaches equidistant laying of LED light assembly 2 not only, and form the different situation of light source density, and if lead 3 degree of crook is excessive again the time, also influential lead 3 and two pin 2a, the possibility of 2b weld strength.

Further, when production length was longer, LED light assembly 2 and lead 3 more likely formed balky phenomenon after penetrating hollow sleeve 1 one long sections, even caused lead 3 overbendings and the possibility that ruptures, in the manufacturing of reality, also waited to improve.

Simultaneously, when existing LED illuminator is installed, carry out deflection as long as give slightly, the light source direction of LED light assembly 2 is not to remain on same sensing; That is to say, LED light assembly 2 will be on the X-Z plane angular deflection slightly, or on the Y-Z plane angular deflection slightly, and make the light source direction of LED light assembly 2 present dispersion shape; So, have installing and fixing and being not easy of LED illuminator now, and illumination effect is also undesirable.

For these reasons, the present inventor is design and actual tests actively, develops applicable to C.O.B. formula LED, and can significantly promote the Flexiblel ight-emitting unit of the present invention and the manufacture method (two) thereof of practical effect.

Main purpose of the present invention is in order to provide a kind of with Flexiblel ight-emitting unit and the manufacture method (two) thereof of C.O.B. formula LED as light source, and this method and device obviously possess following advantage, feature and purpose:

01, the present invention can make plugging of LED lamp string group fixing very quick and simple and easy, and the sensing of fixing back C.O.B. formula LED has uniformity.

02, the present invention can make C.O.B. formula LED and the lead of being connected, and has preferable tensile strength and pliability.

03, the present invention can make C.O.B. formula LED and each resistance of being connected, and obtains preferable protection and fixing.

04, the present invention can make LED lamp string group in the following process of process of plugging and global formation, and the unlikely deflection of the sensing of each C.O.B. formula LED changes.

05, the present invention can be easy to by dress and fixing, and the sensing of light source is all the normal direction of forming surface, and has preferable illumination effect.

06, apparatus of the present invention can be carried out the axial plane deflection of X-Y on installed surface, and after the deflection, the direction that light source still can be consistent, and have pliability.

The present invention is in order to reach above-mentioned purpose and effect, and the technological means that this manufacture method adopted comprises following step:

Step 1 is the forming step of inner layer fixed, and distinctly is embedded with two main lines in two raised lines;

Step 2 is the series connection step of LED lamp string group, goes up welding one lead out of the ordinary in C.O.B. formula LED, with formation LED lamp group, and welds a resistance on the lead between each LED lamp group, to be composed in series a LED lamp string group one by one;

Step 3 is inserted in LED lamp string group in the groove of inner layer fixed, and gives clamping by two raised lines for the fixing step that plugs of LED lamp string group, makes the laying spacing of C.O.B. formula LED stable, and the sensing unanimity of C.O.B. formula LED;

Step 4 is for being connected the step of main line, and tool using penetrates the raised line front end of inner layer fixed with the lead foremost of LED lamp string group, and be connected mutually with the left side main line, and, penetrate the raised line end of inner layer fixed, and be connected mutually with the right side main line also with the least significant end lead of LED lamp string group;

Step 5 is the processing and forming by extrusion for the step that extrusion coats, and with the colloid identical with inner layer fixed, with the semi-finished product extrusion coating of step 4, and forms an outer fixed body, and inner layer fixed and outer fixed body are combined into one;

Like this, can avoid the following process process the influence that may cause, and the laying spacing of C.O.B. formula LED is stable, and guarantees the same direction that is oriented to of each C.O.B. formula LED, and has preferable tensile strength and pliability.

Feature of the present invention, technological means, concrete function and specific embodiment, continue describe in detail with graphic, figure number as after:

Graphic being described as follows:

Fig. 1 is the schematic perspective view of apparatus of the present invention preferred embodiment;

Fig. 2 is the part three-dimensional exploded view of apparatus of the present invention preferred embodiment;

Fig. 3 is the part schematic perspective view of apparatus of the present invention preferred embodiment;

Fig. 4 is the planar side view of apparatus of the present invention preferred embodiment;

Fig. 5 is the planar side view of another outer fixed body of apparatus of the present invention;

Fig. 6 is the partial, perspective view of apparatus of the present invention embodiment 2;

Fig. 7 is the partial, perspective view of apparatus of the present invention embodiment 3;

Fig. 8 is the partial, perspective view of apparatus of the present invention embodiment 4;

Fig. 9 is the partial, perspective view of apparatus of the present invention embodiment 5;

Figure 10 is the partial, perspective view of apparatus of the present invention embodiment 6;

Figure 11 is the partial, perspective view of apparatus of the present invention embodiment 7;

Figure 12 is the partial, perspective view of apparatus of the present invention embodiment 8;

Figure 13 is the manufacturing schematic diagram of usual means.

See also Fig. 1 to shown in Figure 3, in preferred embodiment, apparatus of the present invention comprise an inner layer fixed 10, a LED lamp string group 20, a pair of

main line

30,31, and formation such as an outer fixed body 40; Wherein, inner layer fixed 10, LED lamp string group 20, to

main line

30,31, and the solid signal formed such as outer fixed body 40, detailed as shown in Figure 1; LED lamp string group 20 is decomposed with the thin portion of inner layer fixed 10 is three-dimensional, knows clearly as shown in Figure 2; LED lamp string group 20 is arranged at the three-dimensional signal of part on the inner layer fixed 10, knows clearly as shown in Figure 3:

This inner layer fixed 10 is the transparent or semitransparent colloid of a strip, and end face central authorities are provided with groove 11 one, and both sides respectively have raised

line

12,13 one, makes inner layer fixed 10 form a U type section;

This LED lamp string group 20, be by several C.O.B. formulas LED21, resistance 22, and lead 23 welded and be composed in series, and LED lamp string group 20 just can be inserted in the groove 11, and can be by 12,13 clampings of two raised lines;

This is to

main line

30,31, be embedded in respectively in two raised

lines

12,13 of inner layer fixed 10, draw outward or connector (figure do not show) is set for wiring, and left side main line 30 is parallel to each other with right side main line 31, and lay respectively at the two side ends of inner layer fixed 10U type section, the lead foremost 230 of LED lamp string group 20, can penetrate the front end of raised line 12 by instrument, and be connected mutually with left side main line 30, the least significant end lead 231 of LED lamp string group 20, also can penetrate the end of raised line 13, and be connected mutually with right side main line 31 by instrument;

This skin fixed body 40 is the colloid identical with inner layer fixed 10, and is the processing and forming by extrusion, and coats inner layer fixed 10 and LED lamp string group 20 and be combined into one, and end face is plane forming surface 41, and the bottom surface also is plane forming surface 42;

Like this, can make the laying spacing of C.O.B. formula LED21 stable, and the Flexiblel ight-emitting unit of light source direction unanimity.

And manufacture method of the present invention comprises following steps:

Step 1 is the forming step of inner layer fixed 10, and distinctly is embedded with two

main lines

30,31 in two raised

lines

12,13;

Step 2 is the series connection step of LED lamp string group 20, welds a lead 23 on C.O.B. formula LED21 respectively, with formation LED lamp group, and welds a resistance 22 on the lead 23 between each LED lamp group, to be composed in series a LED lamp string group 20 one by one;

Step 3 is the fixing step that plugs of LED lamp string group 20, system is inserted in LED lamp string group 20 in the groove 11 of inner layer fixed 10, and give clamping by two raised

lines

12,13, make the laying spacing of C.O.B. formula LED21 stable, and the sensing unanimity of C.O.B. formula LED21 (being the normal direction on the plane of groove 11);

Step 4 is for being connected the step of

main line

30,31, tool using is with the lead foremost 230 of LED lamp string group 20, penetrate raised line 12 front ends of inner layer fixed 10, and be connected mutually with left side main line 30, and also with the least significant end lead 231 of LED lamp string group 20, penetrate raised line 13 ends of inner layer fixed 10, and be connected mutually with right side main line 31;

Step 5 is the processing and forming by extrusion for the step that extrusion coats, and with the colloid identical with inner layer fixed 10, the semi-finished product extrusion of step 4 is coated, and form an outer fixed body 40, and inner layer fixed 10 and outer fixed body 40 are combined into one;

Like this; to guarantee the same direction that is oriented to of each C.O.B. formula LED21; and in the following process of the process that plugs of LED lamp string group 20 and global formation; the unlikely deflection of the sensing of each C.O.B. formula LED21 changes; each C.O.B. formula LED21 also can be under the effect of groove 11 and two raised

lines

12,13 with the lead 23 of being connected; have preferable tensile strength and pliability; and under the coating combination of outer fixed body 40; can make C.O.B. formula LED and each resistance of being connected, obtain preferable protection and fixing.

The place that should give explanation around here again is: apparatus of the present invention, after global formation processing, this skin fixed body 40, because of the forming surface 41 of its end face and the forming surface 42 of bottom surface all are plane, so apparatus of the present invention are easy to install and are fixing, and the sensing of light source is the normal direction of forming surface 41, and has preferable illumination effect; In addition, apparatus of the present invention can be carried out the axial plane deflection of X-Y on installed surface, and after the deflection, the direction that light source still can be consistent, and have pliability; Real is of the present invention one big characteristic.

See also shown in Figure 4, in preferred embodiment, the outer fixed body 40 of apparatus of the present invention, its end face and bottom surface have

plane forming surface

41,42, and the sensing of light source is the normal direction of forming surface 41; So when carrying out whole installing and fixing, need not the sensing that professional technique can be guaranteed light source easily, and unlikely generation deflection changes; Especially, even pressing on the dress face, carry out the axial plane deflection of X-Y, the also unlikely uniformity that impairs light source direction; Be with, apparatus of the present invention, have and be easy to install and fix and the characteristic of deflection.

See also shown in Figure 5, in preferred embodiment, the outer fixed body 40 of apparatus of the present invention, the forming

surface

41,42 of its end face and bottom surface further also can be provided with several indenture 410,420 when extrusion molding.

See also shown in Figure 6, in embodiment 2, the LED lamp string group 20 of apparatus of the present invention, further can by several C.O.B. formulas LED21, SMD resistance 22a (or IC or Current Control IC), and lead 23 welded and be composed in series, and LED lamp string group 20 just can be inserted in the groove 11, and can be by 12,13 clampings of two raised lines; Like this, the dropping resistor that makes LED lamp string group 20 need can directly be installed on the C.O.B. circuit board by SMD type or plug-in unit resistance (IC, Current Control IC), and simplifies the setting of original resistance 22 assemblies such as grade; This also is another feasible pattern of apparatus of the present invention.

The place that should give explanation around here again is: the LED lamp string group 20 of apparatus of the present invention, and step of manufacturing 2 (the series connection step of LED lamp string group 20), further also can be: the circuit that (1), the mode of crossing the tin stove with plug wire are carried out between each C.O.B. formula LED21 connects; (2) or by electric wire or Copper Foil in the plane, the circuit that carries out between each C.O.B. formula LED21 in the mode of scolding tin or electric welding (spot) connects; And the plug wire of front and back ends or electric wire or Copper Foil etc. can weld a lead in addition, and penetrate the front end of raised line 12 and the end of raised line 13 respectively by instrument, and are connected (identical with the bridging mode of preferred embodiment) mutually with left side main line 30 and right side main line 31; And be all another feasible pattern of apparatus of the present invention and manufacture method thereof.

See also shown in Figure 7ly, in embodiment 3, the LED lamp string group 20 of apparatus of the present invention, and step of manufacturing 2 are by Copper Foil 24 in the plane, carry out circuit connectionist between each C.O.B. formula LED21 in the mode of electric welding.

See also shown in Figure 8ly, in embodiment 4, the LED lamp string group 20 of apparatus of the present invention, and step of manufacturing 2 are with the electric wire ways of connecting and carry out circuit connectionist between each C.O.B. formula LED21; Wherein, the electric wire 23a that this bending is provided with is that bending is arranged between two adjacent C.O.B. formula LED21, and is arranged with the sleeve pipe 25 that an internal diameter is slightly larger than electric wire 23a external diameter in addition; By this, after outer fixed body 40 extrusions coat, only there is sleeve pipe 25 to be fixed, and the electric wire 23a tool gap that can stretch and slide slightly,, breaks electric wire 23a to avoid apparatus of the present invention when the bending by moulding.

When crooked apparatus of the present invention, the curature variation of outer fixed body 40 can add all C.O.B. of giving formula LED21 one jack-up strength, at this moment, be provided with because electric wire 23a is crooked, and have slidably gap (electric wire 23a is not fixed by moulding) in sleeve pipe 25, therefore, apparatus of the present invention are when bending, the electric wire 23a of this bending setting leaves stretchable leeway, and has better tensile strength and pliability.

See also shown in Figure 9, in embodiment 5, the LED lamp string group 20 of apparatus of the present invention, and step of manufacturing 2 (the series connection step of LED lamp string group 20), further also can be: in the mode of lagging circuit, C.O.B. formula LED21 is set, to make LED lamp string group 20; Wherein, this lagging circuit is by a lagging layer 26 fixed number section metal forming 27, and make continuously in the mode that band shape is produced, and on this lagging layer 26, and equidistantly lay several precutting holes 261, each section metal forming 27 has a bit of naked section for welding in precutting hole 261 places; Like this, each C.O.B. formula LED21 can electric welding be fixedly arranged on 27 of two adjacent metal formings, and is connected into a LED lamp string group 20, subsequently, lagging layer 26 can be torn off, and subsequent steps 3 plugs and is fixed on the inner layer fixed 10, in order to follow-up processing; Have in fact be easy to make, to lay spacing stable, and characteristic such as can produce continuously, and is a quantum jump of LED light-emitting unit and manufacture method thereof.

The place that should give explanation around here again is: implement in 5 examples, this lagging circuit, further also can be by a lagging layer 26 and a belt metal foil 27, make continuously in the mode that band shape is produced, and by mould, on lagging layer 26, equidistantly go out several precutting holes 261, and metal forming 27 is thrust into several sections, and each section metal forming 27 leaves a bit of not thrusting partly in precutting hole 261 places; Like this, this lagging circuit turn-over can be welded in 27 of two adjacent metal formings for each C.O.B. formula LED21, and be connected into a LED lamp string group 20.

The place that should give explanation around here again is: in embodiment 5, this C.O.B. formula LED21 is connected with metal forming 27, further also can carry out electric welding, and can once weld many by large-scale soldering tip, with reach a large amount of productions and save man-hour, the purpose of operation.

See also shown in Figure 10, in embodiment 6, the inner layer fixed 10 of apparatus of the present invention, the further also elongated hole 15 of a strokes per minute through-going recess 11 in advance, and elongated hole 15 be equidistant the laying and with C.O.B. formula LED21 that the position is set is corresponding; And when execution in step 5, the temperature and the depanning speed of control extrusion make after the outer fixed body 40 extrusions coating, can form little gap or bubble between this elongated hole 15 and C.O.B. formula LED21.

When crooked apparatus of the present invention, the curvature of outer fixed body 40 promptly changes, and C.O.B. formula LED21 is applied a jack-up strength, at this moment, formed little gap or bubble between this elongated hole 15 and C.O.B. formula LED21, C.O.B. formula LED21 can be provided a space that sinks to cushioning, and then the formed curvature of circuit of this LED lamp string group 20 is promptly different with these skin fixed body 40 formed curvature; Like this, laterally pull strength when the bending,, break the connecting circuit of this LED lamp string group 20 to avoid apparatus of the present invention when the bending to cut down the lamp bar.

In addition, even when execution in step 5, colloid is inserted between this elongated hole 15 and C.O.B. formula LED21 fully, and does not form little gap or bubble, but because of the colloid in the elongated hole 15 presents the projection shape, then its curvature changes and will can not change consistent with the overall curvature of outer fixed body 40; Therefore, also have and cut down the lamp bar and when bending, laterally pull strength, and make the connecting circuit of this LED lamp string group 20 leave stretchable leeway.

See also shown in Figure 11, in embodiment 7, can with among the embodiment 5 with the made LED lamp of the mode of lagging circuit string group 20, with the gummed mode, directly be fixedly arranged on the inner layer fixed 10; Just the step that tears lagging layer 26 among the embodiment 5 off is omitted, and carry out follow-up processing, can prevent that equally C.O.B. formula LED21 from pointing to the purpose of deflection, and have be easy to make, to lay spacing stable, characteristic such as can produce continuously, and still be another feasible pattern of apparatus of the present invention and manufacture method thereof.

See also shown in Figure 12, in embodiment 8, can with among the embodiment 5 with the made LED lamp of the mode of lagging circuit string group 20, also can directly be fixedly arranged on the inner layer fixed 10 by the fixing mode of trip; The both sides of the edge of this lagging layer 26 just, can further be provided with several trips 263, and on the appropriate location of this inner layer fixed 10, also further be provided with trip hole 16 relatively, then the latch mode that this lagging layer 26 promptly can the similar plastics packing box is fixed on the groove 11 of this inner layer fixed 10, in order to directly carrying out follow-up processing, can prevent that equally C.O.B. formula LED21 from pointing to the purpose of deflection, and also have be easy to make, to lay spacing stable, characteristic such as can produce continuously, and still be another feasible pattern of apparatus of the present invention and manufacture method thereof.

The place that should emphasize is herein: apparatus of the present invention, and after global formation processing, this skin fixed body 40, its left and right side further also can be the plane forming surface of tool 43,44, is the rectangle person and make the section of outer fixed body 40.

The place of planning the lay special stress on explanation herein, be that the topmost intention spirit of the present invention is: the inner layer fixed 10 of utilizing a moulding in advance, with the LED lamp string group 20 after the welding series connection, be inserted in the groove 11 of inner layer fixed 10, and by two raised

lines

12,13 give clamping, make that the laying spacing of C.O.B. formula LED21 is stable, and the sensing unanimity of C.O.B. formula LED21 (being all the normal direction on the plane of groove 11), LED lamp string group 20 and a pair of main line of being buried underground with inner layer fixed 10 30,31 are connected conduction mutually, process via extrusion molding again, and coat an outer fixed body 40; Like this, not only be easy to manufacture and install, and have preferable tensile strength and pliability, light source direction also is with consistency, and can obtain excellent illumination effect.

Claims

1. the manufacture method of a Flexiblel ight-emitting, this manufacture method comprises following steps:

(a) forming step of inner layer fixed is embedded with two main lines respectively in two raised lines;

(b) the series connection step of LED lamp string group is welded a lead respectively on C.O.B. formula LED, form LED lamp group, and welds a resistance as required on the lead between each LED lamp group, is composed in series a LED lamp string group one by one;

(c) LED lamp string group plug fixing step, LED lamp string group is inserted in the groove of inner layer fixed, and gives clamping by two raised lines, make the laying spacing of C.O.B. formula LED stable, and the sensing unanimity of C.O.B. formula LED;

(d) be connected the main line step, with LED lamp string group foremost lead penetrate inner layer fixed raised line front end, be connected with the left side main line, simultaneously the least significant end lead of LED lamp string group is penetrated the raised line end of inner layer fixed, be connected with the right side main line;

(e) step of extrusion coating by the processing and forming of extrusion, is used the colloid identical with inner layer fixed, and the semi-finished product extrusion coating with step (d) forms an outer fixed body, and inner layer fixed and outer fixed body are combined into one;

Like this, the influence that can avoid the following process process to cause, and C.O.B. formula LED laying spacing is stable, and can guarantee the same direction that is oriented to of each C.O.B. formula LED, have preferable tensile strength and pliability.

2. the manufacture method of Flexiblel ight-emitting according to claim 1, it is characterized in that step (b) also can for: cross the circuit that the mode of tin stove carries out between each C.O.B. formula LED with plug wire and connect.

3. the manufacture method of Flexiblel ight-emitting according to claim 1, it is characterized in that step (b) also can for: electric wire or Copper Foil are placed on the plane, and the circuit that carries out between each C.O.B. formula LED in the mode of scolding tin or electric welding connects.

4. the manufacture method of Flexiblel ight-emitting according to claim 1, it is characterized in that step (b) also can for: the mode with the lagging circuit is provided with C.O.B. formula LED, to make LED lamp string group; This lagging circuit by a lagging layer fixed number section metal forming, and is made continuously in the mode that band shape is produced, and after C.O.B. formula LED is set, the lagging layer can be torn off, carries out step (c).

5. the manufacture method step (b) of Flexiblel ight-emitting according to claim 4, the connected mode that it is characterized in that C.O.B. formula LED and metal forming also can be carried out electric welding by large-scale soldering tip, can once weld many, with reach a large amount of productions and save man-hour, the purpose of operation.

6. the manufacture method step (b) of Flexiblel ight-emitting according to claim 4 is characterized in that need not to tear off the lagging layer with the made LED lamp of the mode of this lagging circuit string group, directly by the gummed mode of lagging layer, directly is fixedly arranged on the inner layer fixed.

7. the manufacture method step (b) of Flexiblel ight-emitting according to claim 4 is characterized in that need not to tear off the lagging layer with the made LED lamp of the mode of this lagging circuit string group, directly by the fixing mode of trip, directly is fixedly arranged on the inner layer fixed 10.

8. Flexiblel ight-emitting unit, this device comprise that mainly an inner layer fixed 10, a LED lamp string group 20, a pair of main line 30,31 and one outer fixed body 40 constitute; It is characterized in that this inner layer fixed 10, is the transparent or semitransparent colloid of a strip, and end face central authorities are provided with groove 11 one, and both sides respectively have raised line 12,13 one, makes inner layer fixed 10 form the section of a U type;

This LED lamp string group 20 is welded by several C.O.B. formulas LED21, resistance 22 and lead 23 to be composed in series, and LED lamp string group 20 just can be inserted in the groove 11, and can be by 12,13 clampings of two raised lines;

This is to main line 30,31, be to be embedded in respectively in two raised lines 12,13 of inner layer fixed 10, draw outward or connector is set for wiring, and left side main line 30 is to be parallel to each other with right side main line 31, and lay respectively at the two side ends of inner layer fixed 10U type section, the lead foremost 230 of LED lamp string group 20, can penetrate the front end of raised line 12 by instrument, and be connected mutually with left side main line 30, the least significant end lead 231 of LED lamp string group 20, also can penetrate the end of raised line 13, and be connected mutually with right side main line 31 by instrument;

This skin fixed body 40, be to be the colloid identical, and by the processing and forming of extrusion, and coat inner layer fixed 10 and LED lamp string group 20 and be combined into one with inner layer fixed 10, and end face is the forming surface 41 that is plane, and the bottom surface also is plane forming surface 42;

Like this, can avoid the following process process the influence that may cause, and the laying spacing of C.O.B. formula LED21 is stable, and the light source of guaranteeing each C.O.B. formula LED21 points to and be all same direction, has preferable tensile strength and pliability.

9. Flexiblel ight-emitting unit according to claim 8, it is characterized in that, after global formation processing, this skin fixed body 40, further can make the forming surface 41 of its end face and the forming surface 42 of bottom surface all be plane, and make the light source of this LED21 point to, be the normal direction of forming surface 41 all, and have preferable illumination effect.

10. Flexiblel ight-emitting unit according to claim 9, it is characterized in that, this device can be according to by being plane forming surface 41 and forming surface 42, as fixing installed surface, and this device further can carry out the axial plane deflection of X-Y on installed surface, and after deflection was installed, the light source of C.O.B. formula LED21 pointed to and still can keep consistency.

11. Flexiblel ight-emitting unit according to claim 8 is characterized in that, this skin fixed body 40 on the forming surface 41,42 of its end face and bottom surface, further also can have several indenture 410,420 in extrusion molding.

12. Flexiblel ight-emitting unit according to claim 8 is characterized in that, this skin fixed body 40, and its section further can be rectangle person also is that the left and right side also is and has plane forming surface 43,44.

13. Flexiblel ight-emitting unit according to claim 8, it is characterized in that, this LED lamp string group 20, further can by several C.O.B. formulas LED21, SMD resistance 22a, and lead 23 welded and be composed in series, the dropping resistor that makes LED lamp string group 20 need can be by SMD type resistance, directly be installed on the C.O.B. circuit board, and simplify the setting of original resistance 22 assemblies such as grade.

14. Flexiblel ight-emitting unit according to claim 13 is characterized in that, this SMD resistance 22a further also can be plug-in type resistor assemblies such as IC or Current Control IC.

15. Flexiblel ight-emitting unit according to claim 8, it is characterized in that, this LED lamp string group 20, further can by several C.O.B. formulas LED21, SMD resistance 22a, and Copper Foil 24 welded and be composed in series, and on the plane at Copper Foil 24 places, the circuit that carries out between each C.O.B. formula LED21 in the mode of electric welding connects.

16. Flexiblel ight-emitting unit according to claim 15 is characterized in that, this SMD resistance 22a further also can be plug-in type resistor assemblies such as IC or Current Control IC.

17. Flexiblel ight-emitting unit according to claim 8, it is characterized in that, this LED lamp string group 20, further can by several C.O.B. formulas LED21, SMD resistance 22a, and the crooked electric wire 23a that is provided with welded and be composed in series, and carry out circuit connection between each C.O.B. formula LED21 by electric wire 23a; And this electric wire 23a is that bending is arranged between two adjacent C.O.B. formula LED21, and is arranged with the sleeve pipe 25 that an internal diameter is slightly larger than electric wire 23a external diameter, makes electric wire 23a after outer fixed body 40 extrusions coat, still the tool gap that can stretch and slide slightly.

18. Flexiblel ight-emitting unit according to claim 17 is characterized in that, this SMD resistance 22a further also can be plug-in type resistor assemblies such as IC or Current Control IC.

19. Flexiblel ight-emitting unit according to claim 8 is characterized in that, this LED lamp string group 20 further also can be for by a lagging circuit, and it is made that several C.O.B. formulas LED21 is set; And this lagging circuit, be by a lagging layer 26 fixed number section metal forming 27, and equidistantly be laid with several precutting holes 261 on the lagging layer 26, each section metal forming 27 is in precutting hole 261 places and have a bit of naked section for welding, is fixedly arranged on 27 of two adjacent metal formings for C.O.B. formula LED21 electric welding.

20. Flexiblel ight-emitting unit according to claim 19 is characterized in that, this C.O.B. formula LED21 can directly be provided with SMD resistance 22a in the C.O.B. circuit board, to provide LED lamp string group 20 needed dropping resistors.

21. Flexiblel ight-emitting unit according to claim 20 is characterized in that, this SMD resistance 22a further also can be plug-in type resistor assemblies such as IC or Current Control IC.

22. Flexiblel ight-emitting unit according to claim 19, it is characterized in that, this lagging circuit, further also can be by a lagging layer 26 and a belt metal foil 27, make continuously in the mode that band shape is produced, and, on lagging layer 26, equidistantly go out several precutting holes 261 by mould, and metal forming 27 thrust into several sections, and each section metal forming 27 leaves a bit of not thrusting partly in precutting hole 261 places; Like this, this lagging circuit turn-over can be welded in 27 of two adjacent metal formings for each C.O.B. formula LED21.

23. Flexiblel ight-emitting unit according to claim 19 is characterized in that, this lagging circuit further also can directly be fixedly arranged on the inner layer fixed 10 by the mode of lagging layer 26 gummed.

24. Flexiblel ight-emitting unit according to claim 19 is characterized in that, this lagging layer 26 further can be provided with several trips 263 in both sides of the edge; And on the appropriate location of this inner layer fixed 10, also further be provided with trip hole 16 relatively, be solidly plugged in order to lagging layer 26 on the groove 11 of inner layer fixed 10.

25. Flexiblel ight-emitting unit according to claim 8, it is characterized in that, this inner layer fixed 10, the further also elongated hole 15 of a strokes per minute through-going recess 11 in advance, and elongated hole 15 is equidistant layings, and with C.O.B. formula LED21 that the position is set is corresponding, and when outer fixed body 40 extrusion moldings, control the temperature and the depanning speed of its extrusion, make to form little gap or bubble between this elongated hole 15 and C.O.B. formula LED21.