CN210179370U - Double-color temperature light spot-free lamp strip - Google Patents
Double-color temperature light spot-free lamp strip Download PDFInfo
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- CN210179370U CN210179370U CN201920587296.XU CN201920587296U CN210179370U CN 210179370 U CN210179370 U CN 210179370U CN 201920587296 U CN201920587296 U CN 201920587296U CN 210179370 U CN210179370 U CN 210179370U
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Abstract
The utility model relates to a double-color temperature light spot-free lamp strip, which comprises a circuit board unit extending along the length direction of the lamp strip, and a first color temperature light-emitting diode chip, a second color temperature light-emitting diode chip, a first color temperature packaging adhesive and a second color temperature packaging adhesive which are alternately arranged on the circuit board unit, wherein the first color temperature light-emitting diode chip and the second color temperature light-emitting diode chip are respectively connected with mutually independent circuits; each first color temperature light emitting diode chip is independently packaged by first color temperature packaging glue, and the second color temperature packaging glue carries out secondary packaging on the first color temperature light emitting diode chip, the first color temperature packaging glue and the second color temperature light emitting diode chip together to form a light emitting surface; under the control of the external controller, the light-emitting surface emits first color temperature light and second color temperature light without light spots or continuously changes without light spots between the first color temperature and the second color temperature. The utility model discloses an installation structure is simple, easily production, and is with low costs, facilitate promotion.
Description
Technical Field
The utility model relates to a LED lamp strip technical field, concretely relates to double-colored temperature does not have facula lamp strip.
Background
The LED strip is manufactured by assembling LEDs on a strip-shaped FPC (flexible printed circuit) or PCB (printed circuit board), and is gradually and widely used in various decoration industries because of its long service life, energy saving, environmental friendliness. When the existing double-color-temperature lamp band is lightened or double-color temperature is switched, the LED lamp beads with two color temperatures are lightened respectively, and bright light spots can be seen by human eyes, so that discomfort is caused to the human eyes. In order to eliminate light spots, a lampshade is arranged on the outer side of the LED lamp strip in the existing product, so that the structure and the installation process of the product are more complicated, and the popularization and the application of the product are not facilitated.
SUMMERY OF THE UTILITY MODEL
In view of this, it is necessary to provide a two-color temperature light bar without light spots, which has a simple structure and process, is easy to produce and install, and has a good light conversion effect.
A bicolor temperature light spot-free lamp bar comprises a circuit board unit extending along the length direction of the bicolor temperature light spot-free lamp bar, and a first color temperature light emitting diode chip, a second color temperature light emitting diode chip, a first color temperature packaging adhesive and a second color temperature packaging adhesive which are alternately arranged on the circuit board unit, wherein the first color temperature light emitting diode chip and the second color temperature light emitting diode chip are respectively connected with mutually independent circuits, each first color temperature light emitting diode chip is independently packaged by the first color temperature packaging adhesive, and the second color temperature packaging adhesive secondarily packages the first color temperature light emitting diode chip, the first color temperature packaging adhesive and the second color temperature light emitting diode chip together to form a light emitting surface; after the first color temperature light-emitting diode chip or the second color temperature light-emitting diode chip is independently lightened, the light emitted by the light-emitting surface is first color temperature light or second color temperature light without light spots; after the first color temperature light-emitting diode chip and the second color temperature light-emitting diode chip are simultaneously lightened, the light emitted by the light-emitting surface continuously changes between the first color temperature and the second color temperature without light spots under the control of an external controller.
Further, the light-emitting surface is arranged in the middle of the circuit board unit and extends along the length direction of the circuit board unit; the light emitting surface comprises a first color temperature packaging adhesive and a second color temperature packaging adhesive, the first color temperature light emitting diode chip is sequentially covered with the first color temperature packaging adhesive and the second color temperature packaging adhesive from bottom to top, the second color temperature light emitting diode chip is covered with the second color temperature packaging adhesive, and the light emitting surface is a smooth outer surface.
Furthermore, two ends of the circuit board unit are provided with a common electrode and two independent electrodes, and the two independent electrodes are respectively a first independent electrode and a second independent electrode; the first independent electrode and the first color temperature light-emitting diode chip form a first color temperature circuit, and the second independent electrode and the second color temperature light-emitting diode chip form a second color temperature circuit; the first color temperature circuit and the second color temperature circuit are independent of each other.
Furthermore, the common electrode and the two independent electrodes are respectively arranged on two sides of the light-emitting surface, and the common electrode is a common electrode of the first color temperature circuit and the second color temperature circuit; the common electrode is a common anode or a common cathode; the common electrode and the two independent electrodes are respectively arranged at the joint of two ends of the circuit board unit, and the upper surfaces of the common electrode and the two independent electrodes are provided with shearing marks.
Furthermore, two ends of the circuit board unit are respectively provided with two electrode groups, the two electrode groups are respectively arranged on two sides of the light-emitting surface, each electrode group comprises a positive electrode and a negative electrode, and the two electrode groups are respectively connected to the first color temperature circuit and the second color temperature circuit which are independent of each other; two of the electrode group surfaces have cut-out marks.
Furthermore, a groove extending along the direction of the light bar is formed in the upper surface of the circuit board unit, the first color temperature light emitting diode chip, the second color temperature light emitting diode chip, the first color temperature packaging glue and the second color temperature packaging glue are arranged in the groove, dam enclosing is performed by using dam enclosing glue, and then the second color temperature packaging glue subjected to secondary packaging is directly packaged and formed; the first color temperature packaging glue and the second color temperature packaging glue are fluorescent glue.
Furthermore, the first color temperature light emitting diode chip and the second color temperature light emitting diode chip are fixed on the circuit board unit in a flip chip structure form; the first color temperature light emitting diode chips and the second color temperature light emitting diode chips are arranged alternately, and equal intervals are arranged among the light emitting diode chips.
Furthermore, the first color temperature circuit and the second color temperature circuit are respectively a constant current circuit or an adjustable circuit, in the adjustable circuit, a pad is arranged on the circuit board unit, the pad is arranged on two sides of the light-emitting surface, the pad is used for welding circuit components, the circuit components comprise a current-limiting resistor and an isolation capacitor, and the circuit components are exposed outside the edge of the second color temperature packaging adhesive or covered by the second color temperature packaging adhesive.
Furthermore, the back surface of the circuit board unit is laid with connecting wires formed by the electrode groups, and the connecting wires are used for realizing the connection of circuit components in the circuit board unit.
The controller is connected to each electrode and used for controlling the on-off and current magnitude of the first color temperature circuit and the second color temperature circuit.
In the double-color-temperature facula-free light bar, the first color temperature packaging glue and the second color temperature packaging glue are internally blended with fluorescent powder with different color temperatures in different proportions, so that the first color temperature packaging glue and the second color temperature packaging glue emit light with different color temperatures under the irradiation of the light emitting diode. Because the packaging glue covered on the first color temperature light-emitting diode chip and the second color temperature light-emitting diode chip has different color temperatures, when the first color temperature light-emitting diode chip and the second color temperature light-emitting diode chip are respectively lighted, the light-emitting surface emits light with different color temperatures. When the first color temperature light-emitting diode chip and the second color temperature light-emitting diode chip are simultaneously lightened, the controller is used for adjusting the current value flowing through the first color temperature light-emitting diode chip and the second color temperature light-emitting diode chip, so that the brightness of the light emitted by the first color temperature light-emitting diode chip and the brightness of the light emitted by the second color temperature light-emitting diode chip are gradually changed, and the light emitted by the light-emitting surface under the combined action of the two color temperature light-emitting diode chips can be gradually changed between the two color temperatures. Under the effect of the packaging adhesive, the lamp strip shows the change of different color temperatures, and light spots cannot be observed by human eyes. Therefore, the lamp strip can realize jump-free conversion of double color temperatures, and a lampshade does not need to be additionally installed, so that the lamp strip can be applied to various decoration and lighting occasions. The utility model discloses an installation structure is simple, easily production, and is with low costs, facilitate promotion.
Drawings
Fig. 1 is the utility model discloses a structural schematic of two-color temperature no facula lamp strip.
Fig. 2 is the embodiment of the utility model provides a local structure schematic diagram of two-color temperature no facula lamp strip.
Detailed Description
The present invention will be described in detail with reference to the following embodiments and drawings.
Referring to fig. 1 and fig. 2, a dual-color temperature light spot-free light bar 100 provided by an embodiment of the present invention is shown, including a circuit board unit 10 extending along a length direction of the dual-color temperature light spot-free light bar 100, and a first color temperature light emitting diode chip 20, a second color temperature light emitting diode chip 30, a first color temperature packaging adhesive 21, and a second color temperature packaging adhesive 31 alternately disposed on the circuit board unit 10, wherein the first color temperature light emitting diode chip 20 and the second color temperature light emitting diode chip 30 are respectively connected to mutually independent circuits, each first color temperature light emitting diode chip 20 is independently packaged by the first color temperature packaging adhesive 21, the second color temperature packaging adhesive 31 packages the first color temperature light emitting diode chip 20, the first color temperature packaging adhesive 21, and the second color temperature light emitting diode chip 30 together for a second time, and forming a light emitting surface; after the first color temperature light emitting diode chip 20 or the second color temperature light emitting diode chip 30 is independently turned on, the light emitted by the light emitting surface is first color temperature light or second color temperature light without light spots; after the first color temperature led chip 20 and the second color temperature led chip 30 are lighted at the same time, the light emitted from the light emitting surface continuously changes between the first color temperature and the second color temperature without any light spot under the control of the external controller.
Further, the light emitting surface is arranged in the middle of the circuit board unit 10 and extends along the length direction of the circuit board unit 10; the light-emitting surface comprises a first color temperature light-emitting diode chip 20, a second color temperature light-emitting diode chip 30, a first color temperature packaging adhesive 21 and a second color temperature packaging adhesive 31, the first color temperature packaging adhesive 21 and the second color temperature packaging adhesive 31 are sequentially covered above the first color temperature light-emitting diode chip 20 from bottom to top, the second color temperature packaging adhesive 31 is covered above the second color temperature light-emitting diode chip 30, and the light-emitting surface is a flat outer surface.
Further, the upper surface of the circuit board unit 10 is provided with a groove extending along the direction of the light bar 100, the first color temperature light emitting diode chip 20, the second color temperature light emitting diode chip 30, the first color temperature packaging adhesive 21 and the second color temperature packaging adhesive 31 are arranged in the groove, a dam is formed by using dam adhesive, and then the second color temperature packaging adhesive is packaged and formed for the second time.
Preferably, the first color temperature packaging adhesive and the second color temperature packaging adhesive are fluorescent adhesives
Specifically, the first color temperature packaging adhesive 21 and the second color temperature packaging adhesive 31 are filled with three-primary-color fluorescent powder, and the three-primary-color fluorescent powder is configured according to a certain proportion to obtain fluorescent powder with different color temperatures, so that the first color temperature packaging adhesive 21 and the second color temperature packaging adhesive 31 present different color temperatures.
Specifically, the first color temperature packaging adhesive 21 and the second color temperature packaging adhesive 31 contain phosphor, and the phosphor is preferably rare earth three-primary-color phosphor. The rare earth three-primary-color fluorescent powder comprises red powder, green powder, yellow powder and blue powder. The powder of 4 kinds of colours mixes according to certain proportion and can obtains different colour temperatures (2700 ~ 6500K), corresponding the luminous efficacy of lamp strip 100 can reach 100 ~ 160lm/W, and the color rendering index is 70 ~ 98. Generally, the higher the yellow powder content and the lower the red powder content, the higher the luminous efficiency of the light bar. In addition, the content of the fluorescent powder is reduced, and the color temperature is increased; the phosphor content increases and the color temperature decreases.
Further, two ends of the circuit board unit 10 are provided with a common electrode 11 and two independent electrodes, wherein the two independent electrodes are a first independent electrode 12 and a second independent electrode 13 respectively; the first independent electrode 12 and the first color temperature light emitting diode chip 20 form a first color temperature circuit, and the second independent electrode 13 and the second color temperature light emitting diode chip 30 form a second color temperature circuit; the first color temperature circuit and the second color temperature circuit are independent of each other. The common electrode 11 and the two independent electrodes are respectively arranged on two sides of the light-emitting surface, and the common electrode 11 is a common electrode of the first color temperature circuit and the second color temperature circuit; the common electrode 11 is a common positive electrode or a common negative electrode.
Specifically, the common electrode 11, the first independent electrode 12, and the second independent electrode 13 form a loop respectively, and provide working power sources for the first color temperature circuit and the second color temperature circuit respectively.
Further, the common electrode 11 and the two independent electrodes are respectively disposed at the connection positions of the two ends of the circuit board unit 10, and the upper surfaces of the common electrode 11 and the two independent electrodes are provided with the cutting marks 40.
Specifically, the light bar 100 is formed by sequentially connecting a plurality of circuit board units 10 and is formed in one step. According to the requirement, the lamp strip 100 is cut at the cutting mark 40, so that the lamp strip 100 with the required length is obtained. The two ends of the cut light bar 100 are provided with the common electrode 11 and two independent electrodes for connecting with a working power supply.
Furthermore, two electrode sets are respectively arranged at two ends of the circuit board unit 10, the two electrode sets are respectively arranged at two sides of the light-emitting surface, each electrode set comprises a positive electrode and a negative electrode, and the two electrode sets are respectively connected to the first color temperature circuit and the second color temperature circuit which are independent of each other; both of the electrode sets have cut-out marks 40 on their surfaces.
Further, the first color temperature light emitting diode chip 20 and the second color temperature light emitting diode chip 30 are fixed on the circuit board unit 10 in a flip chip structure. The first color temperature led chips 20 and the second color temperature led chips 30 are alternately arranged, and each led chip has an equal interval therebetween.
Specifically, the light emitting diode chip adopts a flip structure, so that the heat dissipation performance is better, the product size is small, and the packaging glue is easy to use for packaging.
Furthermore, the first color temperature circuit and the second color temperature circuit are respectively a constant current circuit or an adjustable circuit, in the adjustable circuit, a pad 14 is arranged on the circuit board unit 10, the pad 14 is arranged on two sides of the light-emitting surface, the pad 14 is used for welding circuit components, the circuit components comprise a current-limiting resistor and an isolating capacitor, and the circuit components are exposed outside the edge of the second color temperature packaging adhesive or covered by the second color temperature packaging adhesive.
Furthermore, the back surface of the circuit board unit 10 is laid with connection lines formed by the electrodes, so as to connect circuit components inside the circuit board unit 10.
Specifically, when the two ends of the circuit board unit 10 are provided with one common electrode and two independent electrodes, the back of the circuit board unit 10 has three connecting lines, the common electrode and the two independent electrodes are respectively connected to the first color temperature circuit and the second color temperature circuit which are independent of each other, and the common electrode is used as a common electrode of the first color temperature circuit and the second color temperature circuit. When two electrode sets are respectively arranged at two ends of the circuit board unit 10, four connecting wires are arranged on the back surface of the circuit board unit 10, one of the two electrode sets is used for connecting the first color temperature circuit, and the other is used for connecting the second color temperature circuit; the two electrode groups respectively form a circuit loop.
Further, the light bar 100 further comprises a controller, and the controller is connected to each electrode and is used for controlling the on/off and the current magnitude of the first color temperature circuit and the second color temperature circuit.
Preferably, the controller adopts a bi-color temperature lamp bar 100 dimmer. The light bar 100 realizes switching and continuous change of bicolor temperature light under the control of the dimmer.
In the dual-color temperature facula-free light bar 100, the first color temperature packaging adhesive 21 and the second color temperature packaging adhesive 31 are internally blended with fluorescent powders with different color temperatures in different proportions, so that the first color temperature packaging adhesive 21 and the second color temperature packaging adhesive 31 emit light with different color temperatures under the irradiation of the light emitting diode. Since the first color temperature light emitting diode chip 20 and the second color temperature light emitting diode chip 30 are covered with different color temperatures of the packaging adhesive, when the first color temperature light emitting diode chip 20 and the second color temperature light emitting diode chip 30 are respectively lighted, the light emitting surface emits light with different color temperatures. When the first color temperature light emitting diode chip 20 and the second color temperature light emitting diode chip 30 are simultaneously turned on, the controller adjusts the current value flowing through the first color temperature light emitting diode chip 20 and the second color temperature light emitting diode chip 30, so that the brightness of the light emitted by the first color temperature light emitting diode chip 20 and the second color temperature light emitting diode chip 30 is gradually changed, and the light emitted by the light emitting surface under the combined action of the two color temperature light emitting diode chips can be gradually changed between the two color temperatures. Under the effect of the packaging adhesive, the light bar 100 shows changes of different color temperatures, and light spots cannot be observed by human eyes. Therefore, the light bar 100 can not only realize jump-free conversion of dual color temperature, but also does not need to install a lampshade additionally, so that the light bar 100 can be applied to various decoration and lighting occasions. The utility model discloses an installation structure is simple, easily production, low cost, facilitate promotion.
It should be noted that the present invention is not limited to the above embodiments, and other changes can be made by those skilled in the art according to the spirit of the present invention, and all the changes made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. A bicolor temperature light spot-free light bar is characterized by comprising a circuit board unit extending along the length direction of the bicolor temperature light spot-free light bar, and a first color temperature light emitting diode chip, a second color temperature light emitting diode chip, a first color temperature packaging glue and a second color temperature packaging glue which are alternately arranged on the circuit board unit, wherein the first color temperature light emitting diode chip and the second color temperature light emitting diode chip are respectively connected with mutually independent circuits, each first color temperature light emitting diode chip is independently packaged by the first color temperature packaging glue, and the second color temperature packaging glue secondarily packages the first color temperature light emitting diode chip, the first color temperature packaging glue and the second color temperature light emitting diode chip together to form a light emitting surface; after the first color temperature light-emitting diode chip or the second color temperature light-emitting diode chip is independently lightened, the light emitted by the light-emitting surface is first color temperature light or second color temperature light without light spots; after the first color temperature light-emitting diode chip and the second color temperature light-emitting diode chip are simultaneously lightened, the light emitted by the light-emitting surface continuously changes between the first color temperature and the second color temperature without light spots under the control of an external controller.
2. The bi-color warm spot-free light bar of claim 1, wherein the light emitting surface is disposed in the middle of the circuit board unit and extends along the length direction of the circuit board unit; the light emitting surface comprises a first color temperature packaging adhesive and a second color temperature packaging adhesive, the first color temperature light emitting diode chip is sequentially covered with the first color temperature packaging adhesive and the second color temperature packaging adhesive from bottom to top, the second color temperature light emitting diode chip is covered with the second color temperature packaging adhesive, and the light emitting surface is a smooth outer surface.
3. The bicolor warm spot-free light bar of claim 2, wherein two ends of the circuit board unit are provided with a common electrode and two independent electrodes, and the two independent electrodes are a first independent electrode and a second independent electrode respectively; the first independent electrode and the first color temperature light-emitting diode chip form a first color temperature circuit, and the second independent electrode and the second color temperature light-emitting diode chip form a second color temperature circuit; the first color temperature circuit and the second color temperature circuit are independent of each other.
4. The bi-color temperature facultless light bar of claim 3, wherein the common electrode and the two independent electrodes are respectively arranged at two sides of the light emitting surface, and the common electrode is a common electrode of the first color temperature circuit and the second color temperature circuit; the common electrode is a common anode or a common cathode; the common electrode and the two independent electrodes are respectively arranged at the joint of two ends of the circuit board unit, and the upper surfaces of the common electrode and the two independent electrodes are provided with shearing marks.
5. The bicolor warm spot-free light bar of claim 2, wherein two electrode groups are respectively arranged at two ends of the circuit board unit, the two electrode groups are respectively arranged at two sides of the light-emitting surface, each electrode group comprises a positive electrode and a negative electrode, and the two electrode groups are respectively connected to the first color warm circuit and the second color warm circuit which are independent of each other; two of the electrode group surfaces have cut-out marks.
6. The dual-color temperature light spot-free light bar of claim 1, wherein a groove extending along the light bar direction is formed on the upper surface of the circuit board unit, the first color temperature light emitting diode chip, the second color temperature light emitting diode chip, the first color temperature packaging glue and the second color temperature packaging glue are arranged in the groove, dam enclosing glue is used for enclosing, and then the second color temperature packaging glue for secondary packaging is directly packaged and molded; the first color temperature packaging glue and the second color temperature packaging glue are fluorescent glue.
7. The dual color temperature spot-free light bar of claim 1, wherein the first color temperature led chip and the second color temperature led chip are mounted on the circuit board unit in a flip chip configuration; the first color temperature light emitting diode chips and the second color temperature light emitting diode chips are arranged alternately, and equal intervals are arranged among the light emitting diode chips.
8. The bi-color temperature facultless lamp strip of claim 3, characterized in that the first color temperature circuit and the second color temperature circuit are respectively a constant current circuit or an adjustable circuit, in the adjustable circuit, the circuit board unit has pads thereon, the pads are disposed on both sides of the light emitting surface, the pads are used for welding circuit components, the circuit components include a current limiting resistor and an isolation capacitor, and the circuit components are exposed outside the edge of the second color temperature packaging adhesive or covered by the second color temperature packaging adhesive.
9. The bicolor warm spot-free light bar of claim 3 or 5, wherein the back of the circuit board unit is laid with connecting wires formed by each electrode group for realizing the connection of circuit components inside the circuit board unit.
10. The bi-color warm spot-free light bar of claim 9, further comprising a controller connected to each electrode for controlling the on/off and current levels of the first and second color temperature circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920587296.XU CN210179370U (en) | 2019-04-26 | 2019-04-26 | Double-color temperature light spot-free lamp strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920587296.XU CN210179370U (en) | 2019-04-26 | 2019-04-26 | Double-color temperature light spot-free lamp strip |
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| Publication Number | Publication Date |
|---|---|
| CN210179370U true CN210179370U (en) | 2020-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920587296.XU Active CN210179370U (en) | 2019-04-26 | 2019-04-26 | Double-color temperature light spot-free lamp strip |
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| Country | Link |
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| CN (1) | CN210179370U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112268237A (en) * | 2020-10-20 | 2021-01-26 | 深圳市好兵光电科技有限公司 | Multi-primary-color facula-free flexible lamp strip |
-
2019
- 2019-04-26 CN CN201920587296.XU patent/CN210179370U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112268237A (en) * | 2020-10-20 | 2021-01-26 | 深圳市好兵光电科技有限公司 | Multi-primary-color facula-free flexible lamp strip |
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Address after: Room 201-210, 2nd floor, Zone C, building 3, Huiye Science Park, sightseeing Road, Tangjia community, Fenghuang street, Guangming District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN EVERLUSTER LIGHTING Co.,Ltd. Address before: 518000 Room 302, Block B, Huifu Building, Tongfu Industrial Zone, Aiqun Road, Shiyan Street, Baoan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN EVERLUSTER LIGHTING Co.,Ltd. |