Chip pattern light-emitting diode
The utility model relates to the LED device in a kind of electricity field essential electronic element, particularly relate to and a kind ofly have extension wire and can be easily and the chip pattern (COB of other light-emitting diodes or circuit connection, Chip On Board) light-emitting diode abbreviates the COB light-emitting diode as.
Because light-emitting diode (LED) power consumption is low, long service life, the field of utilization is more and more wide at present, all coincidentally taken a fancy to the desirable operating characteristic of light-emitting diode as waterpipe type lamp bar, Christmans light string etc., as the novel patent case of Taiwan patent gazette notification number the 250905 " a kind of Decorating lamp strip improvement ", be to utilize light-emitting diode to constitute light source on the continuous lamp bar; And for example the novel patent case of Taiwan patent gazette notification number the 3rd July 1st 402 " LED formula Christmans light string holder structure " then is to utilize the light source of light-emitting diode as Christmans light string; From the above, to be used on continuous lamp bar and the Christmans light string be known technology to light-emitting diode.
And apply on lamp bar, the lamp string with the light-emitting diode of existing form, except fundamental characteristics with light-emitting diodes such as low power consumption and long working lifes, structure for lamp string, lamp bar is simplified, cost reduces and the simplification of production operation, does not have positive effect.With regard to cost, use traditional light-emitting diodes pipe manufacturer Christmans light string, the expense that must pay comprises following:
1, the Master Cost of light-emitting diode itself, processing charges and assembly expenses;
2, the Christmas light socket of ccontaining light-emitting diode, lampshade comprise fee of material, processing charges and assembly expenses;
3, complicated bonding wire operation is except that wire rod, because the wire jumper of lamp string is complicated, so must pay bigger cost in the bonding wire operation.
4, not good because of water proofing property, so must pay more cost, carry out water-proofing treatment.
From the above, light-emitting diode applies on existing lamp bar, the lamp string, only is the simple replacement of light source, for lamp bar or the simplification of lamp string structure and the reduction of manufacturing cost, there is no remarkable and positive benefiting; Though have the dealer to change light-emitting diode into chip form light-emitting diode (COB at present, Chip OnBoard), but just chip is planted on printed circuit board (PCB), and form weld pad simultaneously (Pad), for being connected with circuit external, with single color LED, two assembly welding pads are arranged, double-colored have four assembly welding pads, three looks then are six assembly welding pads, as seen it for the simplification and the cost reduction of lamp bar or lamp string structure, does not also have significant help except changing to some extent in form.This shows that the structure of above-mentioned existing light-emitting diode still has defective, and the assistant officer treats further to be improved, and seek solution.
Because the defective that above-mentioned existing light-emitting diode exists, the design people actively study innovation based on abundant practical experience and professional knowledge, through constantly studying, design, and after studying sample and improvement repeatedly, creates the utility model finally.
Main purpose of the present utility model is, overcomes the defective that existing light-emitting diode exists, and has extension wire and can be easily and the chip pattern light-emitting diode (COB light-emitting diode) of other light-emitting diodes or circuit connection and provide a kind of.
The purpose of this utility model is to be realized by following technical scheme.A kind of chip pattern light-emitting diode according to the utility model proposes is characterized in that this light-emitting diode comprises: a substrate; A group or more is formed at the chip circuit on the aforesaid base plate, and this chip circuit is for chip is installed; A group or more is formed at the extension wire on the aforesaid base plate, and this extension wire is for reserving power supply or signal wiring.
The purpose of this utility model can also further realize by following technical measures.
Aforesaid chip pattern light-emitting diode, wherein said substrate is to possess the substrate that suitable light transmittance is arranged.
Aforesaid chip pattern light-emitting diode, chip circuit and extension wire on the wherein said substrate are to be made of copper foil circuit.
Aforesaid chip pattern light-emitting diode, wherein said chip circuit and extension wire are that the surface and the back side that is formed at substrate is set.
Aforesaid chip pattern light-emitting diode, wherein said chip circuit are to be made of two parallel side by side circuits.
Aforesaid chip pattern light-emitting diode, wherein said chip circuit are to be made of two circuits that are located along the same line.
Aforesaid chip pattern light-emitting diode, the chip circuit on the wherein said substrate is that cross-over connection is to extension wire.
The utility model compared with prior art has tangible advantage and good effect.By above technical scheme as can be known, the utility model is that to reach the major technique means that aforementioned purpose takes be to make aforementioned light-emitting diode be formed with chip circuit and extension wire simultaneously on a substrate, and constitute a substrate with composite line, wherein: the chip circuit is for welding chip, and extension wire is then for making the connection in series-parallel line with other COB light-emitting diodes or drive circuit; With can the be more convenient for connection in series-parallel wire jumper of light-emitting diode of these designs, make the bonding wire operation more simple, convenient and rapid, and can supply direct pressing mold with formation water pipe lamp, Christmans light string or other lamp decorations, and need not bear die sinking and assembly fee usefulness such as lamp socket, lampshade, wire rod, can significantly reduce manufacturing cost.
In addition by above technical scheme as can be known, the utility model also adopts following technical measures further to realize goal of the invention.Aforesaid substrate is to possess suitable light transmittance is arranged, and makes the chip brightness transmissive to substrate back.Be formed with several copper foil circuits on the aforesaid substrate, wherein a circuit is provided with chip, and is connected with another circuit through routing, and remaining circuit is then as power line or control line.Be formed with several paired chip circuit and several extension wires on the aforesaid substrate, wherein an end of each paired chip circuit is provided with a chip, and is connected with the other end by routing.Chip circuit on the aforesaid substrate is that cross-over connection is to extension wire.Aforementioned chip circuit and extension wire are to be formed at substrate surface.Aforementioned chip circuit and extension wire are to be formed at substrate surface and bottom surface respectively.
Therefore, central layer formula light-emitting diode with extension wire provided by the utility model, itself promptly is provided with circuit, and it is required to meet in the future the object of using, with embodiment described later be example as can be known, when it applies to the making of lamp string or lamp bar, not only can provide outside the connection line, other circuit that more may connect or element are reserved distribution, therefore, the dealer utilizes these light-emitting diodes, can have more elasticity and change the space in assembling and the design of whole distribution.
In sum, the utility model chip pattern (COB, Chip On Board) light-emitting diode mainly is to form to be provided with copper foil circuit on a substrate, for welding chip; Except that the circuit that welding chip is used, form in addition on the substrate and be provided with extension wire, this extension wire is to supply and other COB light-emitting diodes or drive circuit line; COB light-emitting diode with previous designs has the wiring of being convenient to, and directly pressing mold and can significantly reduce manufacturing cost constituting water pipe lamp, Christmans light string or other lamp decorations.Can be easily because it has extension wire and other light-emitting diodes or circuit connection, a kind of COB light-emitting diode with extension wire is provided, compared to existing traditional light-emitting diode, or merely chip is installed on existing traditional COB light-emitting diode on the printed circuit board (PCB), existing significantly enhancement on utility function, and extendible applicable object.No matter it structurally or bigger improvement is all arranged on the function, and have large improvement technically, and produced handy and practical effect, and have the effect of enhancement really, thereby be suitable for practicality more, really is a new and innovative, progressive, practical new design.
Concrete structure of the present utility model is provided in detail by following examples and accompanying drawing thereof.
Fig. 1 is the exterior structure schematic diagram of the utility model one preferred embodiment.
Fig. 2 is the substitutional connection schematic diagram of the utility model one preferred embodiment.
Fig. 3 is the exterior structure schematic diagram of the another preferred embodiment of the utility model.
Fig. 4 is the substitutional connection schematic diagram of the another preferred embodiment of the utility model.
Fig. 5 is the line organigram that the utility model one applies to lamp string or lamp bar.
Fig. 6 is the another line organigram that applies to lamp string or lamp bar of the utility model.
Fig. 7 is the utility model substitutional connection schematic diagram of a preferred embodiment again.
Below in conjunction with accompanying drawing and preferred embodiment, to according to its concrete structure of chip pattern light-emitting diode, feature and the effect thereof that the utility model proposes, describe in detail as after.
At first seeing also shown in Figure 1ly, is a preferred embodiment of the present utility model, the utility model chip pattern light-emitting diode, and it comprises:
One substrate 10;
A group or more is formed at the chip circuit 11 on the aforesaid base plate 10;
A group or more forms the extension wire 12 on the aforesaid base plate 10;
In the present embodiment, be on aforesaid base plate 10, to form to be provided with one group and to be parallel-laid into right chip circuit 11 and one group of extension wire 12, wherein, chip circuit 11 is for chip is installed, 12 of extension wires are as expanding lines or connecting the usefulness of power supply;
Substrate 10 is to be made of printed circuit board (PCB) (PC plate) again, it has suitable transparency, aforementioned again chip circuit 11 and extension wire 12 are to be made of copper foil circuit, wherein a chip circuit 11 in position is installed with a chip 100, this chip 100 also is connected with another chip circuit 11 by routing, when twice chip circuit 11 connects respectively with positive-negative power, can make the chip 100 of cross-over connection on it luminous; Again the extension wire 12 on the substrate 10 can be together or together more than, and visual actual needs makes extension wire 12 be connected with chip circuit 11, in the present embodiment, on the substrate 10 only formation be provided with extension wire 12 one, and be not connected with chip circuit 11.
Aforementioned again chip circuit 11 and extension wire 12 two ends form respectively at the place, relative both sides of substrate 10 respectively and are provided with weld pad 110,120, for the usefulness of outside connection.
Moreover aforesaid base plate 10 is after adorning brilliant routing, promptly at chip 100 place's injecting glues to form protective layer 101, constitute a COB light-emitting diode immediately, its substitutional connection is as shown in Figure 2.
In addition aforesaid substrate 10 is provided with chip circuit 11 and the extension wire 12 except one side therein goes up to form, and its relative face in addition also can form simultaneously and be provided with chip circuit 11 and extension wire 12, and substrate 10 is two-sided all to have a light source and make.
When aforementioned light-emitting diode with extension wire applies to make the lamp string, it can be execution mode as shown in Figure 3, mainly be to make each COB light-emitting diode be staggered with relative direction, and utilize winding displacement 30 to be welded in corresponding weld pad 110,120 on the adjacent substrate 10, connect to constitute, wherein winding displacement 30 can utilize winding displacement for it, and it has equidistant heart yearn spacing, can be convenient to be soldered to one by one on the weld pad 110,120.
Above-mentioned member promptly constitutes a lamp string after connection is finished, and on three groups of line ends of aforementioned line, connect respectively with positive and negative power supply, and utilization is provided with a switch or the circuit (not shown) is controlled, can make each light-emitting diode on the lamp string glimmer simultaneously or alternately, because substrate 10 has light transmission, so except the surface has light, its light also will be transmitted through substrate 10 back sides.
See also shown in Figure 4, it is the another preferred embodiment of the utility model, mainly also be on a substrate 10, to form respectively to be provided with chip circuit 11 and several extension wires 12~16, wherein chip circuit 11 is to be made of the twice circuit that is located along the same line, wherein a circuit is provided with chip 100 on the medial extremity that is positioned at the open circuit shape, and this chip 100 also is connected with another circuit by routing;
Moreover in the present embodiment, this extension wire 12~16 is provided with five roads altogether, to supply to connect power supply or control signal respectively.
Aforementioned again chip circuit 11 is provided with weld pad 110~160 in the formation of the both side edges place of substrate 10 respectively at relative outboard end and extension wire 12~16 two ends, for the usefulness of outside connection; In like manner, the also visual actual needs of aforementioned extension wire 12~16 is connected with chip circuit 11,12 formations; After the Connection Step through finishing aforementioned each member, injecting glue is sentenced formation protective layer 101 in chip 100 and routing, promptly constitutes a COB light-emitting diode, and its equivalent electric circuit is as shown in Figure 5.
The COB light-emitting diode of aforementioned forms is applied to make the example of lamp string, see also shown in Figure 6: it mainly is that the many groups of order COB LED 01~LED12 interconnects by winding displacement 30, and flickering by control circuit 20 each light-emitting diode of control, the input of this control circuit 20 is connected with AC power, its output then includes positive and negative power output end (direct current) and two signal output part F1, F2, and it is connected with aforesaid lamp string by winding displacement 30 respectively; As can be seen from Figure, be to constitute connection between LED 01~LED07 by chip circuit 11 and another road extension wire 12, and the chip circuit 11 that makes first group of LED 01 and extension wire 12 respectively cross-line be connected to two groups of extension wires 13,14 in addition so that be connected with two signal output part F1, the F2 of control circuit 20; LED 06 is to make its chip circuit 11, extension wire 12,15 and connect again, uses the connection negative power end, to constitute the loop; Then the connection with previous array is identical as for follow-up LED 07~LED12 connection, so repeat no more.
Because the light-emitting diode of previous embodiment has many group extension wires, except connecting the working power of institute palpus itself, also can be for extending power supply, for should other drive circuits, for example, back segment lamp string can be by the drive circuit of another different output signals, and the power supply that extends can be powered and given this drive circuit.
See also shown in Figure 7 again, being the utility model preferred embodiment again, mainly is to be provided with three core assembly sheet circuits 111,112,113 at a substrate 10, for the chip that three kinds of different color lights of red, green, blue are installed, other is provided with one group of above extension wire 121,122,123, for the usefulness of distribution.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.