CN217816302U - LED lamp strip - Google Patents

Abstract

The utility model discloses a LED lamp area, including a plurality of parallel unit, series connection between parallel unit and the parallel unit, be provided with LED lamp pearl more than 2 on the parallel unit, LED lamp pearl is connected on the pad, the pad has a plurality of groups, each group the pad includes 4 pads, and every LED lamp pearl includes 2 LED chips and four metal leg, the metal leg welding is in on the pad, have two sets of independent parallel circuit on every parallel unit, a set of parallel circuit is connected to a LED chip, has at least 1 parallel circuit and passes between two adjacent pads from top to bottom. Simple structure has reduced the cost of manufacture in LED lamp area.

Description

LED lamp strip

Technical Field

The utility model relates to a LED field, concretely relates to LED lamp area.

Background

With the diversification of application scenes and decoration requirements, higher requirements are put forward on the LED lamp strip. For the same LED lamp strip, it is required that the multiple luminescent colors can be switched, in order to meet the requirements of the multi-color lamp strip, in the conventional technology, the LED lamp bead is usually set to be internally provided with an R + G luminescent chip, an R + B luminescent chip, a G + B luminescent chip or an R + G + B luminescent chip, but the mode needs a control chip to control whether the luminescent chip emits light or not corresponding to each luminescent chip, so that the manufacturing cost of the LED lamp strip is increased.

For this reason, a multi-color LED lamp bead has been developed, each LED lamp bead includes 2 or more light emitting chips, and the packaging glue used for packaging the light emitting chips is different types of packaging glue, that is, different fluorescent powders are provided in the packaging glue, so that light emitted from the light emitting chips passes through the packaging glue, and then light emitted from the packaging glue is different colors; and after a plurality of luminous chips are lightened simultaneously, light rays with different colors emitted outwards by the packaging adhesive form light rays with new colors after being mixed, so that multicolor light emission of the LED lamp bead can be realized.

Then, at present, polychrome LED lamp pearl has not been popularized, mainly lie in that the circuit design of traditional technique is difficult to satisfy the assembly demand of polychrome LED lamp pearl, refer to as shown in fig. 1-6, traditional circuit is located the periphery of pad, the structure is complicated, in lamp area length direction, the interval between pad and the pad is big, be not too suitable for welding polychrome LED lamp pearl, even can weld, also need to make the size of polychrome LED lamp pearl big in order to match original circuit design, thereby the cost of manufacture in LED lamp area has obviously been improved, be unfavorable for the enterprise to obtain competitive advantage. Because the multicolor LED lamp beads are not popularized, the manufacturing of the wavy lamp strip is difficult, and the manufacturing cost of the lamp strip is not reduced.

For this reason, there is a need for improvements and optimizations to existing LED strips.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a LED lamp area, simple structure has reduced the cost of manufacture in LED lamp area.

An embodiment of the utility model provides a LED lamp area, including a plurality of parallel unit, series connection between parallel unit and the parallel unit, be provided with LED lamp pearl more than 2 on the parallel unit, LED lamp pearl is connected on the pad, the pad has a plurality of groups, each group the pad includes 4 pads, and every LED lamp pearl includes 2 LED chips and four metal feet, the metal feet welding is in on the pad, have two sets of independent parallel circuit on every parallel unit, a set of parallel circuit is connected to a LED chip, has at least 1 parallel circuit and passes between two adjacent pads from top to bottom.

According to the utility model discloses a LED lamp area has following beneficial effect at least:

(1) the method has the advantages that at least one parallel circuit passes through the space between two adjacent bonding pads up and down, the tightly-attached arrangement structure of a plurality of LED chips on the LED lamp bead is fully considered, the mode that the circuit on the circuit board is wired from the periphery of the LED lamp bead in the traditional technology is abandoned, the bonding pads used for welding the LED chips on the circuit board can be arranged tightly, the electric connection of the plurality of LED chips in the LED lamp bead is well met, and the wiring mode can not increase the size of the LED lamp bead additionally; compared with the traditional wiring mode, the LED lamp strip provided by the embodiment of the utility model has the advantages that the total wiring length is obviously shortened on the length of the unit lamp strip, the use of materials such as metal copper wires is reduced, the manufacturing cost of the LED lamp strip is effectively reduced, the wiring structure is simple, and the realization is easy;

(2) because one LED lamp bead has multiple light-emitting colour for the quantity of the required LED lamp bead on unit lamp area length becomes littleer, thereby makes wave or great wall shape lamp area very easily, has improved the utilization ratio of circuit board, has reduced the cost of manufacture in LED lamp area, and the wave or great wall shape lamp area aesthetic property that the preparation obtained is good.

According to some embodiments of the utility model, LED lamp pearl includes the support, be provided with 2 LED chips in the support, one of them LED chip is glued the encapsulation by first encapsulation, and another LED chip is glued the encapsulation by the second encapsulation, first encapsulation is glued simultaneously will the cover is glued to the second encapsulation for the light that the LED chip of gluing the encapsulation by the second encapsulation sent passes second encapsulation in proper order and glues, first encapsulation and glue.

According to the utility model discloses a some embodiments, parallelly connected unit has the first pad group that is located both ends and is located a plurality of second pad group in the middle of being located, pass 1 between the upper and lower adjacent two pads of first pad group parallelly connected circuit, pass 2 between the upper and lower adjacent two pads of second pad group parallelly connected circuit.

According to the utility model discloses a some embodiments, two adjacent parallelly connected units realize series connection through the series circuit, the series circuit is perpendicular or slope in lamp area length direction for the positive negative pole orientation of the LED lamp pearl on two adjacent parallelly connected units is unanimous.

According to the utility model discloses a some embodiments, two adjacent parallel units realize the series connection through the series connection circuit, the series connection circuit is on a parallel with lamp area length direction for the positive negative pole orientation of the LED lamp pearl on two adjacent parallel units is opposite.

According to some embodiments of the invention, the parallel line is parallel to the length direction of the LED light strip.

According to the utility model discloses a some embodiments, be provided with scissors position pad on the series connection circuit, the width of scissors position pad is greater than the width of series connection circuit.

According to some embodiments of the invention, the parallel unit further comprises a common line, the common line being electrically connected to the parallel line.

According to the utility model discloses a some embodiments, first encapsulation is glued and is glued for transparent encapsulation, the second encapsulation is glued and is glued for yellow encapsulation.

According to some embodiments of the present invention, the LED strip is a wave or a great wall strip.

Drawings

FIG. 1 is a circuit board diagram of 2 lines (2 sets of parallel lines) in the prior art;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a circuit board diagram of 3 lines (2 sets of parallel lines + common lines) in the prior art;

FIG. 4 is a partial enlarged view of B in FIG. 3;

FIG. 5 is a schematic diagram of a planar structure of the circuit board of FIG. 1 after a cover film is attached to the circuit board;

FIG. 6 is a schematic diagram of a planar structure of the circuit board of FIG. 3 after a cover film is attached to the circuit board;

fig. 7 is a circuit board diagram of 2 lines in the embodiment of the present invention;

FIG. 8 is an enlarged view of a portion C of FIG. 7;

fig. 9 is a circuit board diagram of the 3 lines in the embodiment of the present invention;

FIG. 10 is an enlarged view of a portion D of FIG. 9;

FIG. 11 is a schematic diagram of a planar structure of the circuit board of FIG. 7 after a cover film is attached to the circuit board;

FIG. 12 is a schematic diagram of a planar structure of the circuit board of FIG. 9 after a cover film is attached to the circuit board;

FIG. 13 is a schematic plane structure view of the circuit board shown in FIG. 7 after the LED lamp beads are welded;

fig. 14 is a partial enlarged view of E in fig. 13;

FIG. 15 is a schematic plane structure view of the circuit board shown in FIG. 9 after the LED lamp beads are welded;

FIG. 16 is an enlarged view of a portion F of FIG. 15;

fig. 17 is a schematic view of the light strip structure of fig. 13 after a cover film is attached;

fig. 18 is a schematic view of the lamp strip structure of fig. 15 after a cover film is attached;

fig. 19 is the embodiment of the utility model provides an in the section structure sketch map of LED lamp pearl.

Reference numerals

100-parallel unit, 110-LED lamp bead, 111-LED chip, 112-metal welding foot, 113-support, 114-first packaging glue, 115-second packaging glue, 120-welding pad, 121-first welding pad group, 122-second welding pad group, welding pad 120, 130-parallel circuit;

200-series line, scissor pad 210;

300-public line;

400-covering the film.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the specification, claims and drawings of the present invention, "a plurality" means 1 or more, "2 or more" includes the number. The embodiments of the present invention can be implemented individually, and can be implemented by combining each other between the embodiments, and the embodiments of the present invention are not limited to this.

Referring specifically to fig. 7-19, the LED light strip of the embodiment of the present invention includes a plurality of parallel units 100, the parallel units 100 and the parallel units 100 are connected in series, one LED light strip has 2 or more parallel units 100, the parallel unit 100 is provided with more than 2 LED lamp beads 110, on one parallel unit 100, more than 2 LED lamp beads 110 are connected in parallel, so that even if some LED lamp beads 110 are damaged, normal operation of other LED lamp beads 110 on the parallel unit is not affected, the LED lamp beads 110 are connected to the bonding pads 120, the LED lamp beads 110 are generally soldered to the bonding pads 120 by reflow soldering, the bonding pads 120 have a plurality of groups, each group of the bonding pads 120 includes 4 bonding pads 120, bonding pad windows are provided at positions corresponding to the bonding pads 120 on the cover film 400 of the bonding pad, so as to expose the bonding pads 120, so as to facilitate welding the LED lamp beads 110, each LED lamp bead 110 includes 2 LED chips 111 and four metal bonding pads 112, wherein each LED chip 111 is electrically connected to 2 metal bonding pads 112, each group of the bonding pad 112 is welded to the independent circuit board 130, each group of the parallel circuit board 130 includes at least one group of two parallel circuit boards 130, and two parallel circuit boards 130 pass through two parallel circuit boards, and two parallel circuit boards 130. The distance between two adjacent bonding pads 120 is spaced, and the parallel line 130 passes through the space, and this allows four bonding pads 120 in each group of bonding pads 120 to be closely arranged in a square structure, and compared with the traditional wiring mode, the wiring is simpler, the total length of the line is obviously shortened, the cost is reduced, and the closely arranged bonding pads can adapt to the welding of 2 LED chips 111 in one LED lamp bead 110.

Considering that a strip of light has a plurality of parallel units 100, two adjacent parallel units 100 are connected in series, and therefore, the parallel unit 100 has first pad groups 121 located at two ends and a plurality of second pad groups 122 located in the middle, where the first pad group 121 is one at the left end and the right end, and the second pad group 122 is 1 group or more, 1 parallel line 130 passes through between two adjacent pads 120 above and below the first pad group 121, and 2 parallel lines pass through between two adjacent pads above and below the second pad group, specifically referring to fig. 7, 9, 11, and 12, 2 parallel units 100 are shown on one strip of light, each parallel unit 100 has a first pad group 121 at the left end and the right end, and the second pad group 122 is 3 groups.

In order to realize the series connection between the adjacent parallel units 100, the two adjacent parallel units 100 are connected in series through the series line 200, in some embodiments, as shown in fig. 7-10, 13-16, the series line 200 is inclined in the length direction of the lamp strip, so that in two adjacent parallel units 100, assuming that the two parallel lines 130 below one of the parallel units 100 are connected with the positive electrode of the LED lamp bead, the two parallel lines 130 below the parallel unit 100 are connected with the two parallel lines 130 above the other parallel unit 100 through the inclined series line 200, so that the positive and negative electrode orientations of the LED lamp beads 110 on the two adjacent parallel units 100 are consistent, considering that the positive and negative electrodes of the LED lamp beads are already shaped after production (the positive electrode of the LED lamp bead needs to be connected with the positive electrode of the parallel line, and cannot be connected reversely, otherwise, the LED lamp bead does not work), in this way, the positive and negative electrode orientations of the LED lamp beads welded on the multiple parallel units 100 are consistent, so that when the chip mounter is used for chip mounting, the LED lamp beads can be mounted on the circuit board more quickly, and the chip mounter does not need to adjust the direction of the LED lamp beads. In other embodiments, the series line 200 may also be arranged perpendicular to the length direction of the light strip, and the direction of the positive electrode and the negative electrode of the LED lamp beads 110 on the adjacent parallel units 100 may also be consistent.

In other embodiments, the series lines 200 are parallel to the length direction of the light strip, so that the positive and negative electrodes of the LED beads 110 on two adjacent parallel units 100 face oppositely, that is, the two parallel lines below one of the parallel units 100 are connected to the two parallel lines below the other parallel unit 100.

In some embodiments, in order to make the parallel circuit more tidy and simple, it is preferable that the parallel circuit 130 is parallel to the length direction of the LED strip. Compared with the circuit diagrams 1-4 in the prior art and the circuit diagrams 7-10 in the embodiment, the circuit diagram in the embodiment is obviously simplified and tidy, the used circuit copper and other materials are obviously reduced, the production cost of the LED lamp strip is reduced, and the competitiveness of an enterprise is improved.

In some embodiments of the present invention, a scissor position pad 210 is disposed on the serial line 200, and a width of the scissor position pad 210 is greater than a width of the serial line 200. The setting of scissors position pad 210 has made things convenient for the user as required to tailor the length in lamp area, then can be connected with external power supply at scissors position pad 210 position welding positive negative pole wire, and the convenience of customers uses as required, and the wire of also being convenient for has sufficient welding space with scissors position pad 210 to realize firm reliable electricity and be connected.

In some embodiments of the present invention, the parallel unit 100 further has a common line 300 thereon, and the common line 300 is electrically connected to the parallel line 130. For the LED lamp strip, some use occasions do not need to be connected end to end with the LED lamp strip, for other use occasions such as a ring lamp, the LED lamp strip in the LED lamp strip is connected end to end, and at the moment, a public line 300 can be arranged, so that the parallel line 130 in the lamp strip and the public line 300 form an electric loop.

In some embodiments of the utility model, LED lamp pearl 110 includes support 113, be provided with 2 LED chips 111 in the support 113, one of them LED chip 111 is glued 114 encapsulation by first encapsulation, and another LED chip 111 is glued 115 encapsulation by the second encapsulation, first encapsulation is glued 114 and is incited somebody to action simultaneously second encapsulation is glued 115 and is covered for the light that is sent by the LED chip 111 of 115 encapsulation of second encapsulation is glued 115, first encapsulation is glued 114 in proper order. For first encapsulation glue among the conventional art not glue the second encapsulation and cover, first encapsulation glue and the design that the second encapsulation glued formation light emitting area respectively, the structure of this embodiment makes the light emitting area of LED lamp pearl be first encapsulation glue 114 all the time, and the light emitting area is big, and when two LED chips were luminous simultaneously, the light that sends was first in first encapsulation glue 114 mixed light earlier then give off the air, and the effect of mixing light is better.

Preferably, in some embodiments, the first packaging adhesive 114 is a transparent packaging adhesive, and the second packaging adhesive 115 is a yellow packaging adhesive. Of course, other packaging glues may be used according to the usage scenario.

In order to improve the aesthetic property of the lamp strip and avoid the homogenization of the lamp strip product, the LED lamp strip is a wave-shaped or great wall-shaped lamp strip, namely the width of the LED lamp strip is arranged in the length direction of the lamp strip in a width-narrow connection mode, wherein the wide part is used for welding LED lamp beads and/or other LED elements, and the position where the LED lamp beads or other LED elements are not arranged is narrowed, so that the material is saved.

The embodiment of the utility model provides a through passing at least one parallel line 130 from upper and lower adjacent two pads, fully considered the hugging closely of a plurality of LED chips 111 on LED lamp pearl 110 and set up the structure, abandoned the mode of traditional technical circuit on the circuit board from LED lamp pearl periphery wiring, made the pad that is used for welding the LED chip on the circuit board hug closely the arrangement, fine satisfied the connection of a plurality of LED chips in the LED lamp pearl, this kind of wiring mode can not additionally increase the size of LED lamp pearl; compared with the traditional wiring mode, the LED lamp strip provided by the embodiment of the utility model has the advantages that the total wiring length is obviously shortened on the length of the unit lamp strip, the use of materials such as metal copper wires is reduced, the manufacturing cost of the LED lamp strip is effectively reduced, the wiring structure is simple, and the implementation is easy; meanwhile, as one LED lamp bead has multiple light emitting colors, the number of the LED lamp beads required on the length of the unit lamp strip is reduced, so that the wavy or great wall-shaped lamp strip is easy to manufacture, the utilization rate of a circuit board is improved, the manufacturing cost of the LED lamp strip is reduced, and the manufactured wavy or great wall-shaped lamp strip is good in attractiveness.

The preferred embodiments of the present invention disclosed above are intended to aid in the description of the invention. The preferred embodiments are not intended to limit the invention to the particular embodiments described. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical application, to thereby enable others skilled in the art to best understand the invention for and with the various embodiments. The present invention is limited only by the claims and their full scope and equivalents.

Claims (10)

1. A LED lamp area which characterized in that: including a plurality of parallel units, series connection between parallel unit and the parallel unit, be provided with LED lamp pearl more than 2 on the parallel unit, LED lamp pearl is connected on the pad, the pad has a plurality of groups, each group the pad includes 4 pads, and every LED lamp pearl includes 2 LED chips and four metal leg, the metal leg welding is in on the pad, have two sets of independent parallel circuit on every parallel unit, a LED chip connects a set of parallel circuit, has 1 parallel circuit at least and passes between two pads adjacent from top to bottom.

2. A LED strip according to claim 1, wherein: the LED lamp bead comprises a support, wherein 2 LED chips are arranged in the support, one LED chip is packaged by first packaging adhesive, the other LED chip is packaged by second packaging adhesive, the first packaging adhesive covers the second packaging adhesive, and light emitted by the LED chip packaged by the second packaging adhesive sequentially passes through the second packaging adhesive and the first packaging adhesive.

3. A LED strip according to claim 1 or 2, wherein: the parallel unit is provided with a first bonding pad group positioned at two ends and a plurality of second bonding pad groups positioned in the middle, 1 parallel line passes through between two bonding pads adjacent to each other up and down of the first bonding pad group, and 2 parallel lines pass through between two bonding pads adjacent to each other up and down of the second bonding pad group.

4. A LED strip according to claim 3, wherein: two adjacent parallel units realize series connection through the series circuit, the series circuit is perpendicular or the slope is in the lamp area length direction for the positive negative pole orientation of the LED lamp pearl on two adjacent parallel units is unanimous.

5. A LED strip according to claim 3, wherein: two adjacent parallel units realize series connection through the series circuit, the series circuit is on a parallel with lamp area length direction for the positive negative pole orientation of the LED lamp pearl on two adjacent parallel units is opposite.

6. A LED strip according to claim 4, wherein: the parallel circuit is parallel to the length direction of the LED lamp strip.

7. A LED strip according to claim 4, wherein: the series circuit is provided with a shear position bonding pad, and the width of the shear position bonding pad is larger than that of the series circuit.

8. A LED strip according to claim 1 or 2, wherein: the parallel unit is also provided with a public line which is electrically connected with the parallel line.

9. A LED strip as claimed in claim 2, wherein: the first packaging adhesive is transparent packaging adhesive, and the second packaging adhesive is yellow packaging adhesive.

10. A LED strip according to claim 1, wherein: the LED lamp strip is a wave-shaped or great wall-shaped lamp strip.

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