CN112664854A - Double-color lamp strip and control circuit thereof - Google Patents
Double-color lamp strip and control circuit thereof Download PDFInfo
- Publication number
- CN112664854A CN112664854A CN202011561353.0A CN202011561353A CN112664854A CN 112664854 A CN112664854 A CN 112664854A CN 202011561353 A CN202011561353 A CN 202011561353A CN 112664854 A CN112664854 A CN 112664854A
- Authority
- CN
- China
- Prior art keywords
- metal sheet
- lamp
- color
- switch control
- lamp bead
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention relates to the field of lamp belts, and aims to solve the problem that the overall cost of a double-color lamp belt is high due to the fact that a flexible circuit board on the existing lamp belt is complex in structure; the invention provides a double-color lamp strip, which comprises a flexible circuit board and circuit elements welded on the flexible circuit board, wherein the flexible circuit board comprises a top insulating film layer, a top conducting circuit layer, an insulating base layer, a bottom conducting circuit layer and a bottom insulating film layer which are sequentially arranged from top to bottom; the lamp bead pad unit comprises a first lamp bead pad and a second lamp bead pad which are connected in parallel, and the positive and negative directions of the first lamp bead pad and the second lamp bead pad are opposite; the flexible circuit board of the double-color lamp strip is simple in structural design, and lamp beads with different colors are welded on the parallel forward and reverse bonding pads respectively and are matched with switching of the anode and the cathode of a power supply, so that switching of the lamp beads with the two colors is realized.
Description
Technical Field
The invention relates to the field of lamp strips, in particular to a double-color switching flexible circuit board and a lamp strip thereof.
Background
The LED lamp strip is characterized in that an LED lamp bead is welded on a flexible circuit substrate in a welding mode, and then an external core wire is connected to a power supply to enable the LED lamp bead to be electrified and emit light.
Because the LED lamp strip has long service life, is energy-saving and environment-friendly, the corner of the head is gradually exposed in various decoration industries. However, the general LED lamp strip has too single function and only has a single color temperature mode, and has great limitation in the practical application process.
Although some existing double-color LED lamp belts can realize switching of two color temperatures, the overall structure design of a flexible circuit board on the LED lamp belt is too complex, and the overall cost of the double-color LED lamp belt is high.
Disclosure of Invention
The invention aims to overcome at least one defect (deficiency) of the prior art, and provides a double-color lamp strip which is used for solving the problem that the overall cost of the double-color lamp strip is high due to the fact that a flexible circuit board on the conventional lamp strip is complex in structure.
The invention also aims to provide a control circuit of the double-color lamp strip, which is used in cooperation with the double-color lamp strip to enable the lamp beads with two colors on the lamp strip to alternately emit light.
The technical scheme includes that the double-color lamp strip comprises a flexible circuit board and circuit elements welded on the flexible circuit board, wherein the flexible circuit board comprises a top insulating film layer, a top conducting circuit layer, an insulating base layer, a bottom conducting circuit layer and a bottom insulating film layer which are sequentially arranged from top to bottom, and multiple groups of lamp bead pad units connected in series or multiple groups of lamp bead pad units and resistor pad units connected in series are arranged in the top insulating film layer; the lamp bead pad unit comprises a first lamp bead pad and a second lamp bead pad which are connected in parallel, and the positive and negative directions of the first lamp bead pad and the second lamp bead pad are opposite.
In the invention, two first lamp bead bonding pads and two second lamp bead bonding pads which are opposite in positive and negative directions are connected in parallel in the top insulating film layer, and only one of the first lamp bead bonding pad and the second lamp bead bonding pad can be conducted when the lamp is electrified, so that the circuit element lamp beads welded on the first lamp bead bonding pads and the second lamp bead bonding pads can emit light; the lamp bead bonding pad units which are connected with the first lamp bead bonding pad and the second lamp bead bonding pad in parallel are connected in series, the red lamp beads are welded on the first lamp bead bonding pad, the blue lamp beads are welded on the second lamp bead bonding pad, and the red lamp beads and the blue lamp beads alternately emit light by controlling the switching of the positive electrode and the negative electrode of a power supply; in a similar way, the lamp beads with other colors can be welded on the first lamp bead bonding pad and the second lamp bead bonding pad, and the lamp beads are designed according to actual requirements.
Preferably, a plurality of groups of resistance pad units are arranged in the top insulating film layer and are connected with the lamp bead pad units in series; under the rated voltage of the power supply, the resistor can be matched with the lamp beads to share the voltage, so that the voltages at two ends of the lamp beads reach the rated voltage of the normal work of the lamp beads.
Furthermore, the top conducting circuit layer comprises electrode metal sheets on two sides and a plurality of Z-shaped metal sheets arranged between the electrode metal sheets and overlapped from left to right; the electrode metal sheets on the two sides are linear; the Z-shaped metal sheet comprises an upper end part, a lower end part and a connecting part for connecting the upper end part and the lower end part; the lower end part of the previous Z-shaped metal sheet corresponds to the upper end part of the next Z-shaped metal sheet; the upper end part of the leftmost Z-shaped metal sheet corresponds to the left electrode metal sheet part, and the lower end part of the rightmost Z-shaped metal sheet corresponds to the right electrode metal sheet part; after the top insulating film layer is attached to the top conductive circuit layer, a first lamp bead pad and a second lamp bead pad in the same lamp bead pad unit fall on the upper end part of the Z-shaped metal sheet and the corresponding part of the left electrode metal sheet corresponding to the upper end part or fall on the lower end part of the Z-shaped metal sheet and the corresponding part of the right electrode metal sheet corresponding to the lower end part or fall on the lower end part of the previous Z-shaped metal sheet and the upper end part of the next Z-shaped metal sheet; the extreme left end of left side electrode sheetmetal is equipped with at least one electrode hole, the extreme right end of right side electrode sheetmetal is equipped with at least one electrode hole, the electrode hole runs through the corresponding part of insulating base.
The top conducting circuit layer comprises electrode metal sheets on two sides and a plurality of Z-shaped metal sheets arranged between the electrode metal sheets and overlapped from left to right; the electrode metal sheet is provided with an electrode hole, the electrode hole penetrates through the corresponding part of the insulating base layer, the top conducting circuit layer is conducted with the bottom conducting circuit layer through soldering tin in the electrode hole, and current flows through the Z-shaped metal sheet from one side of the electrode metal sheet and finally reaches the other side of the electrode metal sheet to form a loop.
The Z-shaped metal sheet comprises an upper end part, a lower end part and a connecting part for connecting the upper end part and the lower end part; the lower end part of the previous Z-shaped metal sheet corresponds to the upper end part of the next Z-shaped metal sheet; the upper end part of the leftmost Z-shaped metal sheet corresponds to the left electrode metal sheet part, and the lower end part of the rightmost Z-shaped metal sheet corresponds to the right electrode metal sheet part; when the top insulating film layer is attached to the top conducting circuit layer, a first lamp bead pad and a second lamp bead pad in the same lamp bead pad unit fall on the upper end portion of the Z-shaped metal sheet and the corresponding portion of the corresponding left electrode metal sheet or fall on the lower end portion of the Z-shaped metal sheet and the corresponding portion of the corresponding right electrode metal sheet.
The middle part of the conductive circuit layer is designed into a structure with a plurality of Z-shaped metal sheets superposed and is divided into an upper end part, a lower end part and a connecting part for connecting the upper end part and the lower end part; the upper end parts and the lower end parts of the left and right Z-shaped metal sheets are spliced in a corresponding mode, the part, corresponding to each upper end part and each lower end part, of each upper end part just corresponds to each lamp bead pad unit on the top insulating film layer, so that a first lamp bead pad and a second lamp bead pad in the same lamp bead pad unit are in parallel connection, and all the lamp bead pad units connected in parallel are connected in series through the connecting parts. And parts of the electrode metal sheets on the two sides also correspond to the upper end part or the lower end part of the Z-shaped metal sheet, and the corresponding parts just correspond to the lamp bead pad units on the two sides of the top insulating film layer. The lamp beads with different colors are welded on the first lamp bead welding disc and the second lamp bead welding disc respectively, and the lamp beads with different colors are alternately luminous through switching of the anode and the cathode of the power supply.
Furthermore, a first metal sheet and a second metal sheet are arranged between two adjacent Z-shaped metal sheets; the first metal sheet and the second metal sheet are linear; the first metal sheet corresponds to a lower end portion of the Z-shaped metal sheet, and the second metal sheet corresponds to an upper end portion of the Z-shaped metal sheet; the first metal sheet partially corresponds to the second metal sheet; when the top insulating film layer is attached to the top conducting circuit layer, a first lamp bead pad and a second lamp bead pad in the same lamp bead pad unit fall on the upper end portion of the Z-shaped metal sheet and the corresponding portion of the corresponding second metal sheet or fall on the lower end portion of the Z-shaped metal sheet and the corresponding portion of the corresponding first metal sheet, and the resistance pad unit falls on the corresponding portion of the first metal sheet and the corresponding portion of the second metal sheet.
Set up first sheetmetal and second sheetmetal between two adjacent Z shape sheetmetals, can add resistive element to match the voltage of lamp pearl, improve the life of lamp pearl.
Furthermore, the electrode metal sheet, the Z-shaped metal sheet, the first metal sheet and the second metal layer are all round corners.
Still further, the connecting portion is arranged obliquely.
No matter the corners of the electrode metal sheet, the Z-shaped metal sheet, the first metal sheet and the second metal layer are set to be round corners or the connecting parts of the Z-shaped metal sheet are set to be obliquely arranged, redundant metal rim charge in the top conducting circuit layer is conveniently torn off in the production process; in the production process, the raw material that top conducting wire led is a smooth sheetmetal, and through cutting on the sheetmetal, unnecessary metal rim charge links together, can get rid of unnecessary metal rim charge through once tearing off, and the slope design of fillet design and connecting portion is being torn off the in-process and is being difficult to relatively tearing off, improves the efficiency of tearing off greatly.
Furthermore, electrode holes are formed in the positions of the first lamp bead bonding pad and the second lamp bead bonding pad on the electrode metal sheet and penetrate through the corresponding parts of the insulating base layer.
The electrode hole can communicate top conducting wire layer and bottom conducting wire layer through soldering tin, but the rosin joint phenomenon can appear in the soldering tin in electrode hole occasionally, and the electrode hole has been seted up in first lamp pearl pad and second lamp pearl pad place on the electrode metal sheet, can add many passageways and communicate top conducting wire layer and bottom conducting wire layer, can effectively avoid the unable circumstances that communicates in top conducting wire layer and bottom conducting wire layer.
Furthermore, the circuit element comprises a first color lamp bead welded on the first lamp bead pad, a second color lamp bead welded on the second lamp bead pad, and a resistor welded on the resistor pad unit.
The lamp beads with different colors are welded through the first lamp bead bonding pad and the second lamp bead bonding pad which correspond to the double-color switching flexible circuit board, and the lamp beads with different colors can be alternately emitted through the switching of the anode and the cathode of the power supply.
Furthermore, the first color lamp bead and the second color lamp bead are both single light-emitting chip lamp beads.
The single-light-emitting chip lamp bead can only emit light with a single color, and the first lamp bead bonding pad and the second lamp bead bonding pad which are packaged respectively realize the alternate light emission of the lamp strip with the lamp beads with different colors under the switching of the power supply electrodes.
Furthermore, the first color lamp bead and the second color lamp bead are double-light-emitting chip lamp beads and are chips with the same color; and the first lamp bead welding disc and the second lamp bead welding disc are packaged separately.
The double-light-emitting chip lamp beads are welded on the first lamp bead bonding pad and the second lamp bead bonding pad respectively, are chips with the same color, have higher light-emitting brightness than the single-light-emitting chip lamp beads, and emit light simultaneously by the double-light-emitting chips.
Furthermore, the first color lamp bead and the second color lamp bead are double-light-emitting-chip lamp beads, and the light colors emitted by two light-emitting chips in the double-light-emitting-chip lamp beads are different; first lamp pearl pad and second lamp pearl pad encapsulation are in the same place.
Through with first lamp pearl pad and second lamp pearl pad encapsulation together, the parallelly connected two luminescence chip lamp pearls that the welding has four pins also can realize the switching of double-colored lamp pearl.
A control circuit of the double-color lamp strip comprises the double-color lamp strip and control circuits connected to two ends of the double-color lamp strip and used for controlling the double-color lamp strip, wherein the control circuits and the double-color lamp strip form a return-sun-shaped circuit; the double-color lamp is arranged in the middle of the return-sun-shaped circuit, and the upper end and the lower end of the return-sun-shaped circuit are respectively connected with two poles of power supply voltage; the double-color lamp strip is conducted with the left side of a first pole of power supply voltage through the first switch control unit, and the right side of the double-color lamp strip is conducted through the second switch control unit; the left side of the other electrode of the two-color lamp strip and the power supply voltage is conducted through a third switch control unit, and the right side of the two-color lamp strip is conducted through a fourth switch control unit; the first switch control unit and the third switch control unit are connected to the signal control device through a first signal output line; and the second switch control unit and the fourth switch control unit are connected to the signal control device through a second signal output line.
In the invention, two poles of a power supply voltage are respectively arranged at the upper end and the lower end of the return-sun-shaped circuit, and current is required to be ensured to flow from the upper end/the lower end to the lower end/the upper end after passing through the bicolor lamp strip; in order to ensure that the LED lamp strip can work normally, the first switch control unit and the fourth switch control unit need to be controlled to be switched on or the second switch control unit and the third switch control unit need to be controlled to be switched on.
The signal control device can simultaneously output two signals, and the signals are respectively transmitted to the two switch control units on the left side of the power supply voltage and the two switch control units on the right side of the power supply voltage through the first signal output line and the second signal output line; the two signals output by the signal control device can be alternately changed, namely the signals output by the first signal output line and the second signal output line can be alternately changed; and each switch control unit is controlled to be in an on or off state through the changed signals. The purpose of conducting the first switch control unit and the fourth switch control unit or conducting the second switch control unit and the third switch control unit is achieved.
In the invention, the lamp beads on the double-color lamp strip are connected in series after being connected in parallel two by two, the two lamp beads connected in parallel are lamp beads with two different colors, and in the lamp beads with the two different colors, the lamp strip is arranged in a positive and negative sticking manner, namely, the positive and negative poles of the lamp beads with the two different colors are opposite; preferably, several resistors can also be connected in series in the light strip.
The control circuit is designed based on the double-color lamp strip, and the double-color lamp strip is an electric element in the control circuit; and applying voltage to two ends of the double-color lamp strip, and enabling the lamp beads of two colors in the double-color lamp strip to alternately emit light by switching the direction of current. The switching of the current direction needs to be realized through the working states of the first switch control unit, the second switch control unit, the third switch control unit and the fourth switch control unit.
Further, the first switch control unit, the second switch control unit, the third switch control unit and the fourth switch control unit are all transistors.
The transistor, which is a type of variable current switch, is capable of controlling an output current based on an input voltage. Unlike ordinary mechanical switches, the transistor controls the on/off of itself by using an electrical signal, so the switching speed can be very fast.
Furthermore, the first switch control unit and the second switch control unit are N-type field effect transistors, and the third switch control unit and the fourth switch control unit are P-type field effect transistors; or the first switch control unit and the second switch control unit are P-type field effect transistors, and the third switch control unit and the fourth switch control unit are N-type field effect transistors.
In the invention, two switch control units on the left side or the right side of the two-color lamp strip need to be ensured to be different field effect transistors, namely P type or N type; because if what connect on the left side is the P type, under the signal control of first signal output line output, two on-off control units on the left side are the on or off state, can lead to LED lamp area can't form the route or the direct two on-off control units that flow through on the left side of electric current and do not pass through double-colored lamp area. And, also need to ensure that there are two N type field effect transistor and two P type field effect transistor in four on-off control unit, when only having a P type field effect transistor and three N type field effect transistor, or when only having a type field effect transistor and three P type field effect transistor, can't realize that the lamp pearl of two kinds of colours on the double-colored lamp area is luminous in turn, because LED lamp area has only a route all the time, either the electric current is from left to right, or the electric current is from right to left, and the electric current direction can't switch over.
When ensuring that there are two N type field effect transistors and two P type field effect transistors in four on-off control units, still need to ensure that two field effect transistors of the same model all are close to supply voltage positive terminal or negative terminal, otherwise can appear being close to supply voltage positive terminal or two field effect transistors of negative terminal and open simultaneously and two field effect transistors of the other end close simultaneously, the unable return circuit that forms in double-colored lamp area, can not normally work.
Preferably, the P-type field effect transistor is IRF4905, and the N-type field effect transistor is IRF 3205.
Further, the signal control device is a micro control unit.
Compared with the prior art, the invention has the beneficial effects that: the flexible circuit board of the double-color lamp strip is simple in structural design, and lamp beads with different colors are respectively welded on the forward bonding pad and the reverse bonding pad through the forward and reverse design of the parallel bonding pads, and the switching of the lamp beads with two colors is realized through the matching of the switching of the positive electrode and the negative electrode of a power supply; the control circuit design of the double-color lamp strip can be well matched with the double-color lamp strip, the whole structure design is simple, the signal transmission response speed is high, the double-color lamp beads can alternately emit light, the lamp beads of two colors can alternately emit light at high frequency through signal high-frequency alternation, and the effect of simultaneously emitting light of the lamp beads of the two colors is visually created for people.
Drawings
Fig. 1 is a top view of a top insulating film layer and a top conductive circuit layer bonded together in embodiment 1 of the invention.
Fig. 2 is a top view of the top insulating film layer and the top conductive circuit layer in embodiment 2 of the present invention after being bonded.
Fig. 3 is a cross-sectional layer structure diagram of the lamp strip of the present invention.
FIG. 4 is a structural view of a Z-shaped metal sheet according to the present invention.
Fig. 5 is a structural layout diagram of a bottom conductive trace layer according to the present invention.
Fig. 6 is a control circuit diagram of the dual color lamp strip of the present invention.
Fig. 7 is a working principle diagram of the double-color lamp strip of the invention.
100 parts of a top insulating film layer, 110 parts of lamp bead bonding pads, 111 parts of first lamp bead bonding pads, 112 parts of second lamp bead bonding pads and 120 parts of resistance bonding pads; a top conductive circuit layer-200, an electrode metal sheet-210, an electrode hole-211, a Z-shaped metal sheet-220, an upper end-221, a connecting part-222, a lower end-223, a first metal sheet-230 and a second metal sheet-240; an insulation base layer-300; bottom conductive trace layer-400, bottom first metal layer-410, bottom second metal layer-420; bottom insulating film layer-500; signal control means-600; a first switch control unit-710, a second switch control unit-720, a third switch control unit-730, a fourth switch control unit-740; a first signal output line-810, and a second signal output line-820.
Detailed Description
The drawings are only for purposes of illustration and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
Example 1
As shown in fig. 2 and 3, a two-color light strip includes a flexible circuit board and a circuit element welded on the flexible circuit board, where the flexible circuit board includes a top insulating film layer 100, a top conductive circuit layer 200, an insulating base layer 300, a bottom conductive circuit layer 400, and a bottom insulating film layer 500, which are sequentially disposed from top to bottom; a plurality of groups of lamp bead pad units 110 connected in series are arranged in the top insulating film layer 100; first lamp pearl pad 111 and second lamp pearl pad 112 including parallelly connected in the lamp pearl pad unit 110, first lamp pearl pad 111 is opposite with the positive negative pole direction of second lamp pearl pad 112.
In this embodiment, in the top insulating film layer 100, two first lamp bead pads 111 and two second lamp bead pads 112 with opposite anode and cathode directions are connected in parallel, and when the power is turned on, only one of the first lamp bead pads 111 and the second lamp bead pads 112 can be conducted, so that the lamp beads welded thereon emit light; the lamp bead pad units 110 which are connected with the first lamp bead pad 111 and the second lamp bead pad 112 in parallel are connected in series, the red lamp beads are welded on the first lamp bead pad 111, the blue lamp beads are welded on the second lamp bead pad 112, and the red lamp beads and the blue lamp beads alternately emit light by controlling the switching of the positive pole and the negative pole of a power supply; the lamp beads on the first lamp bead bonding pad 111 and the second lamp bead bonding pad 112 alternately emit light, and lamp beads with different colors can be welded according to actual needs.
In this embodiment, as shown in fig. 2, the top conductive trace layer 200 includes electrode metal sheets 210 on two sides and a plurality of Z-shaped metal sheets 220 disposed between the electrode metal sheets 210 and stacked from left to right; the electrode metal sheets 210 on both sides are linear; as shown in fig. 4, the Z-shaped metal sheet 220 includes an upper end 221, a lower end 223, and a connecting portion 222 connecting the upper end 221 and the lower end 223; the lower end 223 of the previous Z-shaped metal sheet 220 corresponds to the upper end 221 of the next Z-shaped metal sheet 220; the upper end 221 of the leftmost Z-shaped metal piece 220 corresponds to the left electrode metal piece 210, and the rear end of the rightmost Z-shaped metal piece 220 corresponds to the right electrode metal piece 210; after the top insulating film layer 100 is attached to the top conductive circuit layer 200, the first bead pad 111 and the second bead pad 112 in the same bead pad unit 110 fall on the upper end 221 of the Z-shaped metal sheet 220 and the corresponding portion of the left electrode metal sheet 210 corresponding thereto, or fall on the lower end 223 of the Z-shaped metal sheet 220 and the corresponding portion of the right electrode metal sheet 210 corresponding thereto, or fall on the lower end 223 of the previous Z-shaped metal sheet 220 and the upper end of the next Z-shaped metal sheet 220; the leftmost end of left side electrode sheetmetal 210 is equipped with 2 electrode holes 211, the rightmost end of right side electrode sheetmetal 210 is equipped with 2 electrode holes 211, electrode hole 211 runs through the corresponding part of insulating base layer 300.
As shown in fig. 4, when the bottom first metal layer 410 is connected to the negative electrode and the bottom second metal layer 420 is connected to the positive electrode, as shown in fig. 1, the left electrode metal sheet 210 is connected to the bottom second metal layer 420 through the electrode hole 211, and the current flows from the left electrode metal sheet 210 through the combination of the plurality of groups of Z-shaped metal sheets 220, the first metal sheet 230, and the second metal sheet 240 and then is connected to the bottom first metal layer 410 through the electrode hole 211 on the right electrode metal sheet 210, thereby forming a loop.
In the present embodiment, as shown in fig. 2, the corners of the electrode metal sheet 210, the Z-shaped metal sheet 220, the first metal sheet 230 and the second metal layer are rounded; as required in fig. 4, the connecting portions 222 of the Z-shaped metal sheets 220 are arranged obliquely. The electrode metal sheet 210, the Z-shaped metal sheet 220, the first metal sheet 230 and the second metal layer are arranged in a round angle or the connecting part 222 of the Z-shaped metal sheet 220 is arranged in an inclined manner, so that redundant metal rim charge in the top conductive circuit layer 200 can be torn off in the production process; in the production process, the raw material that top conducting wire led is a smooth sheetmetal, and through cutting on the sheetmetal, unnecessary metal rim charge links together, can get rid of unnecessary metal rim charge through once tearing off, and fillet design and connecting portion 222's slope design are tearing off the in-process and are difficult to tear relatively, improve the efficiency of tearing off greatly.
In this embodiment, as shown in fig. 2, electrode holes 211 are formed at positions of the first bead pad 111 and the second bead pad 112 on the electrode metal sheet 210, and penetrate through corresponding portions of the insulating base layer 300.
Circuit elements are welded on the double-color switching flexible circuit board to form the lamp strip.
Specifically, the circuit element may include a first color lamp bead and a second color lamp bead, the first color lamp bead is welded on the first lamp bead pad 111, and the second color lamp bead is welded on the second lamp bead pad 112; the first color lamp beads and the second color lamp beads are single light-emitting chip lamp beads; the first lamp bead welding disc 111 and the second lamp bead welding disc which are packaged respectively realize the alternate lighting of the lamp beads with different colors under the switching of the power supply electrodes.
Specifically, in order to improve the brightness of the lamp beads, the first color lamp beads and the second color lamp beads are double-light-emitting chip lamp beads, the double-light-emitting chips emit light of the same color, and when the lamp is powered on, the two light-emitting chips emit light simultaneously, so that the brightness of the light is improved.
Specifically, the first color lamp bead and the second color lamp bead are both double-light-emitting-chip lamp beads, and the first lamp bead pad 111 and the second lamp bead pad 112 are packaged together; the light colors emitted by the two light-emitting chips in the double-light-emitting chip lamp bead are different. Through encapsulating first lamp pearl pad 111 and second lamp pearl pad 112 together, the parallelly connected two luminescence chip lamp pearls that the welding has four pins also can realize the switching of double-colored lamp pearl.
Example 2
As shown in fig. 1 and 3, a two-color light strip includes a flexible circuit board and a circuit element welded on the flexible circuit board, where the flexible circuit board includes a top insulating film layer 100, a top conductive circuit layer 200, an insulating base layer 300, a bottom conductive circuit layer 400, and a bottom insulating film layer 500, which are sequentially disposed from top to bottom; a plurality of groups of lamp bead pad units 110 and resistance pad units 120 which are connected together in series are arranged in the top insulating film layer 100; first lamp pearl pad 111 and second lamp pearl pad 112 including parallelly connected in the lamp pearl pad unit 110, first lamp pearl pad 111 is opposite with the positive negative pole direction of second lamp pearl pad 112.
In this embodiment, in the top insulating film layer 100, two first lamp bead pads 111 and two second lamp bead pads 112 with opposite anode and cathode directions are connected in parallel, and when the power is turned on, only one of the first lamp bead pads 111 and the second lamp bead pads 112 can be conducted, so that the lamp beads welded thereon emit light; the lamp bead pad units 110 which are connected with the first lamp bead pad 111 and the second lamp bead pad 112 in parallel are connected in series, the red lamp beads are welded on the first lamp bead pad 111, the blue lamp beads are welded on the second lamp bead pad 112, and the red lamp beads and the blue lamp beads alternately emit light by controlling the switching of the positive pole and the negative pole of a power supply; the lamp beads on the first lamp bead bonding pad 111 and the second lamp bead bonding pad 112 alternately emit light, and lamp beads with different colors can be welded according to actual needs.
In this embodiment, in the top insulating film layer 100, one group of resistance pad units 120 is connected in series in each two groups of bead pad units 110; under the rated voltage of the power supply, the resistor can be matched with the lamp beads to share the voltage, so that the voltages at two ends of the lamp beads reach the rated voltage of the normal work of the lamp beads.
In this embodiment, the top conductive trace layer 200 includes electrode metal sheets 210 on two sides and a plurality of Z-shaped metal sheets 220 stacked from left to right and disposed between the electrode metal sheets 210; the Z-shaped metal sheet 220 includes an upper end 221, a lower end 223, and a connecting portion 222 connecting the upper end 221 and the lower end 223; a first metal sheet 230 and a second metal sheet 240 are further arranged between two adjacent Z-shaped metal sheets 220; the first metal sheet 230 and the second metal sheet 240 are linear; after the top insulating film layer 100 is attached to the top conductive trace layer 200, the first metal sheet 230 corresponds to a lower end 223 of the Z-shaped metal sheet 220, and the second metal sheet 240 corresponds to an upper end 221 of the Z-shaped metal sheet 220; the first metal sheet 230 corresponds to the second metal sheet 240 in part; the upper end 221 of the leftmost Z-shaped metal piece 220 corresponds to the left electrode metal piece 210, and the rear end of the rightmost Z-shaped metal piece 220 corresponds to the right electrode metal piece 210; the resistance pad unit 120 is located at corresponding portions of the first metal sheet 230 and the second metal sheet 240.
In this embodiment, compared to embodiment 1, the circuit element includes a first color lamp bead, a second color lamp bead and a resistor, the resistor pad unit 120 is added on the top insulating film layer, and the first metal sheet 230 and the second metal sheet 240 have the same technical content.
Example 3
As shown in fig. 6, a control circuit of a dual-color lamp strip is used for controlling power switching of the dual-color lamp strips of embodiments 1 and 2, and includes a dual-color lamp strip and control circuits connected to two ends of the dual-color lamp strip and used for controlling the dual-color lamp strip, where the control circuits and the dual-color lamp strip form a return-sun-shaped circuit; the double-color lamp is arranged in the middle of the return-sun-shaped circuit, and the upper end and the lower end of the return-sun-shaped circuit are respectively connected with two poles of power supply voltage; the double-color lamp strip is conducted with the left side of a first pole of a power supply voltage through the first switch control unit 710, and the right side of the first pole of the power supply voltage is conducted through the second switch control unit 720; the left side of the other pole of the two-color lamp strip and the power voltage is conducted through the third switch control unit 730, and the right side of the other pole of the two-color lamp strip is conducted through the fourth switch control unit 740; the first switch control unit 710 and the third switch control unit 730 are connected to the signal control device 600 through a first signal output line 810; the second switch control unit 720 and the fourth switch control unit 740 are connected to the signal control device 600 through a second signal output line 820.
In this embodiment, the two-color lamp is arranged in the middle of the return-sun-shaped circuit, the lower end of the return-sun-shaped circuit is the positive pole of the power voltage, and the upper end of the return-sun-shaped circuit is the negative pole of the power voltage; the first switch control unit 710 and the second switch control unit 720 are P-type field effect transistors, and specifically, the first switch control unit 710 and the second switch control unit 720 are IRF 4905; the third switch control unit 730 and the fourth switch control unit 740 are N-type field effect transistors, and specifically, the third switch control unit 730 and the fourth switch control unit 740 are IRF 3205; the control device is a micro control unit, and the micro control unit can output two signals which are transmitted by a first signal output line 810 and a second signal output line 820 respectively; a first signal output line 810 outputs a signal for controlling the first switch control unit 710 and the third switch control unit 730 to make one of them in an on state and one in an off state; the second signal output line 820 outputs a signal for controlling the second switch control unit 720 and the fourth switch control unit 740 to turn on one of them and turn off the other.
In this embodiment, when the signal output by the first signal output line 810 turns on the first switch control unit 710 and turns off the third switch control unit 730, the signal output by the second signal output line 820 turns on the fourth switch control unit 740 and turns off the second switch control unit 720, at this time, the current flows out from the lower-end power voltage, goes to the right-side line, passes through the fourth switch control unit 740, flows through the two-color light strip from the right side, comes out from the left side, passes through the first switch control unit 710, flows back to the upper-end power voltage from the left-side line, and the traveling trajectory of the whole current is S-shaped.
In this embodiment, when the signal output by the first signal output line 810 turns on the third switch control unit 730 and turns off the first switch control unit 710, the signal output by the fourth signal output line turns on the second switch control unit 720 and turns off the fourth switch control unit 740, at this time, the current flows out from the lower-end power voltage, flows to the left line, passes through the third switch control unit 730, flows through the two-color light strip from the left side, flows out from the right side, passes through the second switch control unit 720, flows back to the upper-end power voltage from the right line, and the traveling locus of the whole current is in an inverse S shape forming a mirror image with S.
Of course, the first switch control unit 710 and the second switch control unit 720 may also be N-type fets, the third switch control unit 730 and the fourth switch control unit 740 may be P-type fets, and the whole circuit control principle is the same as that described above.
In this embodiment, the signals of the first signal output line 810 and the second signal output line 820 are changed to make the current flow from the left side to the right side or from the right side to the left side, so that the beads of two colors on the two-color lamp strip alternately emit light or the beads exhibit the effect of simultaneous emission of the beads of two colors by the high-frequency alternate control signal.
In this embodiment, a working principle diagram of the dual-color lamp strip is shown in fig. 7, where the lamp strip is composed of multiple segments of lamp strip units, taking the leftmost lamp strip as an example, three groups of lamp beads are connected in series on the lamp strip, and the left lamp strip of each group of lamp beads is a lamp bead with the positive electrode facing downward and the negative electrode facing upward and of the same color; the lamp strip on the right side of each group of lamp beads is a lamp bead with the anode facing upwards and the cathode facing downwards and in another color. When the power upper end is anodal, the right side lamp pearl is bright, when the power lower extreme is the negative pole, the left side lamp pearl is bright, when the positive negative pole high frequency of power is in turn, builds the effect that two kinds of colours lamp pearl are bright simultaneously. The control of the anode and the cathode of the power supply of the bicolor lamp strip is realized by the control circuit of the embodiment.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention claims should be included in the protection scope of the present invention claims.
Claims (10)
1. A double-color lamp strip comprises a flexible circuit board and circuit elements welded on the flexible circuit board, wherein the flexible circuit board comprises a top insulating film layer, a top conductive circuit layer, an insulating base layer, a bottom conductive circuit layer and a bottom insulating film layer which are sequentially arranged from top to bottom; the lamp bead pad unit comprises a first lamp bead pad and a second lamp bead pad which are connected in parallel, and the positive and negative directions of the first lamp bead pad and the second lamp bead pad are opposite.
2. The double-colored lamp strip according to claim 1, wherein the top conductive circuit layer comprises electrode metal sheets on two sides and a plurality of Z-shaped metal sheets arranged between the electrode metal sheets and overlapped from left to right; the electrode metal sheets on the two sides are linear; the Z-shaped metal sheet comprises an upper end part, a lower end part and a connecting part for connecting the upper end part and the lower end part; the lower end part of the previous Z-shaped metal sheet corresponds to the upper end part of the next Z-shaped metal sheet; the upper end part of the leftmost Z-shaped metal sheet corresponds to the left electrode metal sheet part, and the lower end part of the rightmost Z-shaped metal sheet corresponds to the right electrode metal sheet part; after the top insulating film layer is attached to the top conductive circuit layer, a first lamp bead pad and a second lamp bead pad in the same lamp bead pad unit fall on the upper end part of the Z-shaped metal sheet and the corresponding part of the left electrode metal sheet corresponding to the upper end part or fall on the lower end part of the Z-shaped metal sheet and the corresponding part of the right electrode metal sheet corresponding to the lower end part or fall on the lower end part of the previous Z-shaped metal sheet and the upper end part of the next Z-shaped metal sheet; the extreme left end of left side electrode sheetmetal is equipped with at least one electrode hole, the extreme right end of right side electrode sheetmetal is equipped with at least one electrode hole, the electrode hole runs through the corresponding part of insulating base.
3. A bi-color light strip according to claim 2, wherein a first metal sheet and a second metal sheet are further provided between two adjacent Z-shaped metal sheets; the first metal sheet and the second metal sheet are linear; the first metal sheet corresponds to a lower end portion of the Z-shaped metal sheet, and the second metal sheet corresponds to an upper end portion of the Z-shaped metal sheet; the first metal sheet partially corresponds to the second metal sheet; when the top insulating film layer is attached to the top conducting circuit layer, a first lamp bead pad and a second lamp bead pad in the same lamp bead pad unit fall on the upper end portion of the Z-shaped metal sheet and the corresponding portion of the corresponding second metal sheet or fall on the lower end portion of the Z-shaped metal sheet and the corresponding portion of the corresponding first metal sheet, and the resistance pad unit falls on the corresponding portion of the first metal sheet and the corresponding portion of the second metal sheet.
4. A bi-color light strip according to any one of claims 1 to 3, wherein said circuit components comprise a first color lamp bead welded on the first lamp bead pad, a second color lamp bead welded on the second lamp bead pad, and a resistor welded on the resistor pad unit.
5. A bi-color light strip according to claim 4, wherein said first and second color light beads are single light emitting chip light beads.
6. A bi-color light strip as claimed in claim 4, wherein the first color light bead and the second color light bead are dual light emitting chip light beads, which are chips of the same color; and the first lamp bead welding disc and the second lamp bead welding disc are packaged separately.
7. A bi-color light strip as claimed in claim 4, wherein the first color light bead and the second color light bead are dual light emitting chip light beads, and the light colors emitted by two light emitting chips in the dual light emitting chip light beads are different; first lamp pearl pad and second lamp pearl pad encapsulation are in the same place.
8. A control circuit of a two-color lamp strip as claimed in any one of claims 1 to 7, comprising a two-color lamp strip and a control circuit connected to both ends of the two-color lamp strip for controlling the two-color lamp strip, wherein the control circuit and the two-color lamp strip form a loop-sun circuit; the double-color lamp is arranged in the middle of the return-sun-shaped circuit, and the upper end and the lower end of the return-sun-shaped circuit are respectively connected with two poles of power supply voltage; the double-color lamp strip is conducted with the left side of a first pole of power supply voltage through the first switch control unit, and the right side of the double-color lamp strip is conducted through the second switch control unit; the left side of the other electrode of the two-color lamp strip and the power supply voltage is conducted through a third switch control unit, and the right side of the two-color lamp strip is conducted through a fourth switch control unit; the first switch control unit and the third switch control unit are connected to the signal control device through a first signal output line; and the second switch control unit and the fourth switch control unit are connected to the signal control device through a second signal output line.
9. The control circuit of a bi-color light strip according to claim 8, wherein said first switch control unit, said second switch control unit, said third switch control unit, and said fourth switch control unit are transistors.
10. The control circuit of a bi-color light strip of claim 9, wherein said first and second switch control units are N-type fets, and said third and fourth switch control units are P-type fets; or the first switch control unit and the second switch control unit are P-type field effect transistors, and the third switch control unit and the fourth switch control unit are N-type field effect transistors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011561353.0A CN112664854A (en) | 2020-12-25 | 2020-12-25 | Double-color lamp strip and control circuit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011561353.0A CN112664854A (en) | 2020-12-25 | 2020-12-25 | Double-color lamp strip and control circuit thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112664854A true CN112664854A (en) | 2021-04-16 |
Family
ID=75408937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011561353.0A Pending CN112664854A (en) | 2020-12-25 | 2020-12-25 | Double-color lamp strip and control circuit thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112664854A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104540284A (en) * | 2012-03-23 | 2015-04-22 | 四川新力光源股份有限公司 | LED illumination and dimming device |
| CN205790072U (en) * | 2016-06-30 | 2016-12-07 | 东莞万炜光电子有限公司 | LED lamp bead that two pins is nonpolarity |
| CN207334345U (en) * | 2017-08-14 | 2018-05-08 | 广东顺德施瑞科技有限公司 | A kind of high-voltage LED light bar |
| CN208029156U (en) * | 2018-04-17 | 2018-10-30 | 中山市富大照明科技有限公司 | A kind of dual-colored LED lamp band |
-
2020
- 2020-12-25 CN CN202011561353.0A patent/CN112664854A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104540284A (en) * | 2012-03-23 | 2015-04-22 | 四川新力光源股份有限公司 | LED illumination and dimming device |
| CN205790072U (en) * | 2016-06-30 | 2016-12-07 | 东莞万炜光电子有限公司 | LED lamp bead that two pins is nonpolarity |
| CN207334345U (en) * | 2017-08-14 | 2018-05-08 | 广东顺德施瑞科技有限公司 | A kind of high-voltage LED light bar |
| CN208029156U (en) * | 2018-04-17 | 2018-10-30 | 中山市富大照明科技有限公司 | A kind of dual-colored LED lamp band |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN214172003U (en) | Lamp area with two lamp pearls and control circuit thereof | |
| KR20040062374A (en) | Color mixing light emitting diode | |
| CN213686267U (en) | Novel three-wire series lamp string | |
| CN111106226A (en) | LED lamp bead with internal IC | |
| CN210800791U (en) | Three-wire control multicolor point control RGB patch type LED lamp strip | |
| CN111653556A (en) | Transparent luminous component for visible colored line | |
| CN214046164U (en) | Double-color switching flexible circuit board and lamp strip thereof | |
| CN109860163B (en) | Integrative LED of two-sided luminous wick | |
| CN112664854A (en) | Double-color lamp strip and control circuit thereof | |
| CN112728443B (en) | Four-color lamp strip and control circuit thereof | |
| CN218160369U (en) | RGBW five-in-one high-voltage LED lamp bead | |
| CN213983106U (en) | Double-loop flexible lamp strip for four-color switching | |
| CN214306649U (en) | Full-color flexible lamp strip with flip LED chip | |
| CN212033019U (en) | Light-emitting device of vertical integrated control chip | |
| CN213630000U (en) | Low-voltage colorful LED lamp strip | |
| CN106195659B (en) | COB light source, integrated module and lamp | |
| CN209782312U (en) | High-voltage flexible circuit board with three parallel colors and lamp strip thereof | |
| CN115428148A (en) | LED lamp strip | |
| CN110418460B (en) | Luminous glass based on double-sided flexible circuit board | |
| CN217216955U (en) | Horse race type UV-containing four-primary-color LED lamp strip | |
| CN214205903U (en) | Low-voltage control circuit for multicolor lamp strip | |
| CN214281745U (en) | Short-unit single-row flexible circuit board and lamp strip | |
| CN220648164U (en) | LED lamp and LED product | |
| CN218599502U (en) | Soft lamp area of polychrome shearing LED at will | |
| CN214281707U (en) | Control circuit for double-color switching of LED lamp strip |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210416 |
|
| RJ01 | Rejection of invention patent application after publication |