Novel four-color LED lamp bead
By using a combination of a blue light chipset and a red fluorescent glue layer in RGB color light beads to replace traditional red light chips, the problems of red light chip manufacturing complexity and low voltage are solved, and cost reduction and luminous efficiency are achieved.
Patent Information
- Application Number
- CN202422304039.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-21
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-21
AI Technical Summary
The manufacturing process of the existing RGB color light beads is complex, the production quality is poor, and the working voltage is low, resulting in high production and high production and use costs.
The first blue light chipset and red fluorescent glue layer are used to replace the traditional red light chip. The working voltage is increased through the blue light chip connected in series, and the fluorescent glue layer emits red light, simplifying the circuit design and reducing driving current and energy loss.
It reduces production costs, improves the luminous efficiency and uniformity of red light of LED beads, and simplifies circuit design and reduces energy loss.
Smart Images
Figure CN223063686U_ABST
Abstract
Description
Technical Field
[0002] The utility model relates to the technical field of LED lamp beads, in particular to a new type of four-color LED lamp bead.
Background Art
[0004] RGB color lamp beads are a kind of lighting device based on light-emitting diodes, which are widely used because of their advantages such as high brightness, rich colors, energy conservation and environmental protection. The light-emitting principle of RGB color lamp beads is to obtain various color lights according to the color changes of the three primary colors of light and the color mixing between them.
[0005] At present, in the production design of RGB color lamp beads, red light chips, green light chips and blue light chips are needed. However, since the manufacturing process of red light chips is more complex and the production quality is worse than that of blue light chips, the price of red light chips is much higher than that of blue light chips. Moreover, the working voltage of red light chips is relatively low, and an additional drive circuit is required to convert and stabilize the voltage, resulting in high production and use costs of RGB color lamp beads.
Content of the Utility Model
[0007] In order to solve the technical problem that the production and use costs of RGB color lamp beads are very high due to the complex manufacturing process, poor production quality and low working voltage of red light chips at present, the utility model provides a new type of four-color LED lamp bead.
[0008] The utility model is realized by the following technical solutions:
[0009] A new type of four-color LED lamp bead, including a bracket, on which a first cup, a second cup and a third cup are provided. A first light-emitting unit for emitting white light is provided on the first cup, a second light-emitting unit for emitting blue light and green light is provided on the second cup, and a first blue light chip group and a red fluorescent glue layer covering the first blue light chip group so that the first blue light chip group can emit red light are provided on the third cup.
[0010] As described above for a new type of four-color LED lamp bead, a light-emitting chip group connected in series is further provided on the bracket for increasing the working voltage and making the working voltages of the first light-emitting unit and the second light-emitting unit consistent with the working voltage of the first blue light chip group.
[0011] As described above for a new type of four-color LED lamp bead, the first blue light chip group includes a plurality of blue light chips connected in series for increasing the working voltage, and the red fluorescent glue layer is uniformly coated on the surface of the first blue light chip group.
[0012] A novel four-color LED lamp bead as described above, wherein the light-emitting chip group includes a first light-emitting chip group disposed in the first light-emitting unit and a second light-emitting chip group disposed in the second light-emitting unit.
[0013] A novel four-color LED lamp bead as described above, wherein the first light-emitting chip group includes a plurality of first light-emitting chips connected in series, and the second light-emitting chip group includes a green light chip group for emitting green light and a second blue light chip group for emitting blue light.
[0014] A novel four-color LED lamp bead as described above, wherein the first light-emitting chip is a blue light chip, the green light chip group includes a plurality of green light chips connected in series, and the second blue light chip group includes a plurality of blue light chips connected in series.
[0015] A novel four-color LED lamp bead as described above, wherein a fluorescent glue layer is further provided on the first cup body, and the fluorescent glue layer covers the first light-emitting unit so that the first light-emitting unit emits white light, and the fluorescent glue layer is a white fluorescent glue layer.
[0016] A novel four-color LED lamp bead as described above, wherein a transparent glue layer is provided on the second cup body, and the transparent glue layer covers the second light-emitting unit to improve the light output efficiency of the second light-emitting unit.
[0017] A novel four-color LED lamp bead as described above, wherein the operating voltage of the first light-emitting unit is 3V - 100V, the operating voltage of the second light-emitting unit is 3V - 100V, and the operating voltage of the first blue light chip group is 3V - 100V.
[0018] A novel four-color LED lamp bead as described above, wherein the bracket is further provided with isolation protrusions for light source isolation, and the isolation protrusions include a first isolation protrusion disposed between the first cup body and the second cup body and a second isolation protrusion disposed between the second cup body and the third cup body;
[0019] The number of blue light chips of the first light-emitting chip is the same as the number of blue light chips of the first blue light chip group;
[0020] The number of green light chips of the green light chip group is more than the number of blue light chips of the second blue light chip group.
[0021] Compared with the prior art, a novel four-color LED lamp bead proposed by the present utility model has the following beneficial effects:
[0022] 1. The LED lamp bead proposed by the present utility model uses the cooperation of the first blue light chip group and the red fluorescent glue layer to emit red light instead of the traditional red light chip, reducing the production cost. At the same time, the working voltage of the blue light chip is higher than the operating voltage of the red light chip, thereby increasing the working voltage of the LED lamp bead, reducing energy loss during the power supply voltage reduction process, and improving the luminous efficiency of the LED lamp bead.
[0023] 2. The red fluorescent glue layer proposed by the present utility model is evenly coated on the surface of the first blue light chip group, which helps the light emitted by the blue light chip to uniformly emit red light outward after passing through the red fluorescent glue layer, improving the uniformity of the red light of the LED lamp bead.
[0024] 3. The series-connected light-emitting chip group proposed by the present utility model, on the one hand, increases the working voltage of the LED lamp bead, reduces the required driving current, reduces energy loss during the power supply voltage reduction process, and improves the luminous efficiency of the LED lamp bead. On the other hand, it makes the working voltages of the first light-emitting unit, the second light-emitting unit, and the first blue light chip group consistent, eliminating the need for an additional voltage-dividing circuit to distribute or adjust the power supply voltage, simplifying the circuit design, and reducing costs.
Description of the Drawings
[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments.
[0027] Figure 1 It is a structural schematic diagram of the present utility model.
Detailed Embodiments
[0029] In order to make the technical problems, technical solutions, and beneficial effects solved by the present utility model clearer, the following further details the present utility model in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0030] Specific embodiments, in combination with Figure 1As shown in the figure, the technical solution of the present utility model is further described. A new type of four-color LED lamp bead includes a bracket 1. A first cup 2, a second cup 3, and a third cup 4 are provided on the bracket 1. A first light-emitting unit 21 for emitting white light is provided on the first cup 2. A second light-emitting unit 31 for emitting blue light and green light is provided on the second cup 3. A first blue light chip group 41 and a red fluorescent glue layer 42 covering the first blue light chip group 41 are provided on the third cup 4, so that the first blue light chip group 41 can emit red light. The LED lamp bead uses the cooperation of the first blue light chip group 41 and the red fluorescent glue layer 42 to emit red light instead of the traditional red light chip, reducing the production cost. At the same time, the working voltage of the blue light chip is higher than that of the red light chip, thereby increasing the working voltage of the LED lamp bead, reducing energy loss during the power supply step-down process, and improving the luminous efficiency of the LED lamp bead.
[0031] Further, as a preferred implementation manner of this solution rather than a limitation, the first blue light chip group 41 includes a plurality of blue light chips connected in series for increasing the working voltage. The plurality of blue light chips are connected in series by gold wires or silver wires. The red fluorescent glue layer 42 is evenly coated on the surface of the first blue light chip group 41.
[0032] Specifically, the working voltage of the first blue light chip group 41 is between 3 - 100V due to the plurality of blue light chips connected in series.
[0033] In this embodiment, the first blue light chip group with a plurality of blue light chips connected in series helps to increase the working voltage of the first blue light chip group, reduce the required driving current, reduce energy loss during the power supply step-down process, and thus improve the luminous efficiency of the LED lamp bead. At the same time, the surface of the first blue light chip group is evenly coated with a red fluorescent glue layer, which helps the light emitted by the blue light chips to emit red light evenly outward after passing through the red fluorescent glue layer, improving the uniformity of the red light of the LED lamp bead.
[0034] Further, as a preferred implementation manner of this solution rather than a limitation, a light-emitting chip group 5 connected in series for increasing the working voltage and making the working voltages of the first light-emitting unit 21 and the second light-emitting unit 31 consistent with the working voltage of the first blue light chip group 41 is also provided on the bracket 1. The light-emitting chip group 5 includes a first light-emitting chip group 51 provided on the first light-emitting unit 21 and a second light-emitting chip group 52 provided on the second light-emitting unit 31.
[0035] In this embodiment, the series-connected light-emitting chip group, on the one hand, increases the working voltage of the LED lamp beads, reduces the required driving current, reduces energy loss during the power supply step-down process, and improves the light-emitting efficiency of the LED lamp beads. On the other hand, it makes the working voltages of the first light-emitting unit, the second light-emitting unit, and the first blue-light chip group consistent, eliminating the need to additionally set up a voltage-dividing circuit to distribute or regulate the power supply voltage, simplifying the circuit design, and reducing costs.
[0036] Further, as a preferred implementation manner rather than a limitation of this solution, the first light-emitting chip group 51 includes a plurality of first light-emitting chips 511 connected in series. The plurality of first light-emitting chips 511 are connected in series by gold wires or silver wires. The first light-emitting chip 511 can be a blue-light chip or a green-light chip. Preferably, the first light-emitting chip 511 is a blue-light chip;
[0037] Specifically, the plurality of serially connected first light-emitting chips 511 make the working voltage of the first light-emitting chip group 51 between 3 - 100V, so that the working voltage of the first light-emitting unit 21 is also between 3 - 100V;
[0038] In addition, the number of blue-light chips of the first light-emitting chip 511 is the same as the number of blue-light chips of the first blue-light chip group 41, so that the working voltage of the first light-emitting unit 21 is consistent with the working voltage of the first blue-light chip group 41.
[0039] In this embodiment, the working voltages of the first light-emitting unit and the first blue-light chip group are consistent, enabling the first light-emitting unit and the first blue-light chip group to be connected in parallel and share the same power supply voltage, simplifying the circuit design and reducing costs; at the same time, by connecting different numbers of blue-light chips in series, the working voltages of the first light-emitting unit and the first blue-light chip group can meet voltage requirements of 3V, 6V, 9V, 18V, or even higher voltages.
[0040] Further, as a preferred implementation manner rather than a limitation of this solution, a fluorescent glue layer 22 is further provided on the first cup body 2. The fluorescent glue layer 22 covers the first light-emitting unit 21 to make the first light-emitting unit 21 emit white light. The fluorescent glue layer 22 is a white fluorescent glue layer.
[0041] Even further, as a preferred implementation manner rather than a limitation of this solution, the fluorescent glue layer 22 on the first cup body 2 can be a fluorescent glue layer of other colors, so that the first light-emitting unit 21 can emit light of other colors. For example, the fluorescent glue layer 22 can be a yellow fluorescent glue layer, so that the light emitted by the first light-emitting unit 21 forms yellow light and emits outward after passing through the yellow fluorescent glue layer.
[0042] In this embodiment, different colors of light can be emitted through the fluorescent glue layers of different colors, reducing the dependence on high-cost light-emitting chips and lowering the cost. The fluorescent glue layer also has a protective effect on the light-emitting chips, which can reduce the interference of the external environment on the light-emitting chips, thereby improving the light-emitting reliability and service life of the light-emitting chips.
[0043] Further, as a preferred implementation manner rather than a limitation of this solution, the second light-emitting chip group 52 includes a green light chip group 521 for emitting green light and a second blue light chip group 522 for emitting blue light. The green light chip group 521 includes a plurality of green light chips connected in series, and the second blue light chip group 522 includes a plurality of blue light chips connected in series. A plurality of the green light chips are connected in series by gold wires or silver wires, and a plurality of the blue light chips are connected in series by gold wires or silver wires.
[0044] Among them, a plurality of green light chips connected in series make the operating voltage of the green light chip group 521 between 3 - 100V, and a plurality of blue light chips connected in series make the operating voltage of the second blue light chip group 522 between 3 - 100V. Since the green light chip group 521 and the second blue light chip group 522 are connected in parallel, the operating voltage of the second light-emitting unit 31 is also between 3 - 100V.
[0045] In addition, since the operating voltage of the blue light chips is higher than that of the green light chips, the number of green light chips in the green light chip group 521 is more than the number of blue light chips in the second blue light chip group 522, so that the operating voltage of the green light chip group 521 can be kept consistent with the operating voltage of the second blue light chip group 522.
[0046] In this embodiment, the green light chip group and the second blue light chip connected in parallel enable the second light-emitting unit to use the same power supply voltage to drive the second light-emitting unit to emit two different colors of light, without the need for an additional voltage-dividing circuit or voltage-transforming circuit to achieve voltage distribution or regulation, simplifying the design of the power supply circuit and reducing the cost.
[0047] Further, as a preferred implementation manner rather than a limitation of this solution, a transparent glue layer 32 is provided on the second cup body 3, and the transparent glue layer 32 covers the second cup body 3 to improve the light output efficiency of the second light-emitting unit 31.
[0048] In this embodiment, the design of the transparent glue layer helps to gather the blue light and green light emitted by the second light-emitting unit, improving the light output efficiency of the LED bracket; at the same time, it also reduces the generation of light spots or shadows, making the second light-emitting unit emit light more evenly.
[0049] Further, as a preferred implementation manner rather than a limitation of this solution, the first blue light chip group 41 may also be a first blue light integrated chip integrated with multiple blue light chips connected in series. The first light-emitting chip 511 may also be a first integrated chip composed of multiple blue light chips or green light chips connected in series. The green light chip group 521 may also be a green light integrated chip composed of multiple green light chips connected in series. The second blue light chip group 522 may also be a second blue light integrated chip composed of multiple blue light chips connected in series.
[0050] In this embodiment, the high-voltage integrated chip can reduce the energy loss during the current conversion process and improve the luminous efficiency of the LED lamp bead. The high-voltage integrated chip also has better heat dissipation ability, can reduce the complexity of the heat dissipation circuit and the external circuit, simplify the circuit design, and reduce the cost.
[0051] Further, as a preferred implementation manner rather than a limitation of this solution, the bracket 1 is further provided with an isolation protrusion 6 for light source isolation. The isolation protrusion 6 includes a first isolation protrusion 61 disposed between the first cup body 2 and the second cup body 3 and a second isolation protrusion 62 disposed between the second cup body 3 and the third cup body 4.
[0052] In this embodiment, the design of the isolation protrusion can isolate different color light-emitting units, reduce the mutual interference between different color lights, and thus improve the lighting quality of the LED lamp bead. The isolation protrusion can also isolate the heat of different light-emitting units, improve the thermal stability and heat dissipation ability of the LED lamp bead.
[0053] Further, as a preferred implementation manner rather than a limitation of this solution, the bracket 1 is provided with a first conductive pad 23 located in the first cup body 2 and a first positive electrode pin 24 and a first negative electrode pin 25 oppositely disposed on both sides of the first conductive pad 23. The first light-emitting unit 21 is attached to the first conductive pad 23, and the first light-emitting unit 21 is electrically connected to the first positive electrode pin 24 and the first negative electrode pin 25 respectively;
[0054] The bracket 1 is further provided with a second conductive pad 33 located in the second cup body 3 and a second positive electrode pin 34 and a second negative electrode pin 35, a third positive electrode pin 36 and a third negative electrode pin 37 oppositely disposed on both sides of the second conductive pad 33. The second light-emitting unit 31 is attached to the second conductive pad 33. The green light chip group 521 on the second light-emitting unit 31 is electrically connected to the second positive electrode pin 34 and the second negative electrode pin 35 respectively. The blue light chip group 312 on the second light-emitting unit 31 is electrically connected to the third positive electrode pin 36 and the third negative electrode pin 37 respectively;
[0055] On the bracket 1, there is also a third conductive pad 43 located inside the third cup body 4, and a fourth positive pin 44 and a fourth negative pin 45 oppositely arranged on both sides of the third conductive pad 43. The third light-emitting unit 41 is attached to the third conductive pad 43, and the third light-emitting unit 41 is electrically connected to the fourth positive pin 44 and the fourth negative pin 45 respectively.
[0056] In this embodiment, the pins are arranged on both sides of the conductive pad, which can make the bonding wires as far away from the light-emitting area of the light-emitting unit as possible, avoid the bonding wires blocking the light-emitting area too much, and thus is more conducive to light emission; the independently arranged conductive pad also helps to better improve the heat dissipation of the LED lamp beads.
[0057] The working principle of this embodiment is as follows:
[0058] A novel four-color LED lamp bead proposed by the present utility model can emit red light through the cooperation of the first blue light chip group 41 and the red fluorescent glue layer 42. The specific principle is as follows:
[0059] The surface of the first blue light chip group on the third cup body 4 is evenly coated with a red fluorescent glue layer 42. When the blue light chip emits blue light, since the energy of the blue light is relatively high, when the blue light irradiates the red fluorescent glue layer 42 on the surface, the red fluorescent glue layer 42 will emit red light evenly outward, thereby replacing the traditional red light chip to emit red light.
[0060] To make the working voltages of the first light-emitting unit 21, the second light-emitting unit 31, and the first blue light chip group 41 consistent, it can be achieved by calculating the working voltages of each light-emitting unit. The specific process is as follows:
[0061] Assume that the blue light chip voltage of the first light-emitting chip 511 is U1, the number is N1, the green light chip voltage of the green light chip group 521 is U2, the number is N2, the blue light chip voltage of the second blue light chip group 522 is U3, the number is N3, and the blue light chip voltage of the first blue light chip group 51 is U4, the number is N4. As long as the formula U1N1 = U2N2 = U3N3 = U4N4 is satisfied, the working voltages of the first light-emitting unit 21, the second light-emitting unit 31, and the first blue light chip group 41 can be made consistent.
[0062] Those of ordinary skill in the art should understand that: as described above is an implementation manner provided in combination with specific content, and it is not considered that the specific implementation of the present utility model is only limited to these descriptions. At the same time, due to different industry names, it is not limited to the above names, nor limited to English names. Any approximation or similarity to the method and structure of the present utility model, or any technical deduction or replacement made under the premise of the concept of the present utility model, should be regarded as the protection scope of the present utility model.
Claims
1. A new type of four-color LED lamp bead, characterized in that, It includes a bracket (1), on which a first cup body (2), a second cup body (3) and a third cup body (4) are provided. A first light-emitting unit (21) for emitting white light is provided on the first cup body (2), a second light-emitting unit (31) for emitting blue light and green light is provided on the second cup body (3), and a first blue light chip group (41) and a red fluorescent glue layer (42) covering the first blue light chip group (41) so that the first blue light chip group (41) can emit red light are provided on the third cup body (4).
2. A novel four-color LED lamp bead according to claim 1, characterized in that, A light-emitting chip group (5) connected in series is also provided on the bracket (1) for increasing the working voltage and making the working voltages of the first light-emitting unit (21) and the second light-emitting unit (31) consistent with the working voltage of the first blue light chip group (41).
3. A novel four-color LED lamp bead according to claim 1, characterized in that, The first blue light chip group (41) includes a plurality of blue light chips connected in series for increasing the working voltage, and the surface of the first blue light chip group (41) is evenly coated with the red fluorescent glue layer (42).
4. A novel four-color LED lamp bead according to claim 2, characterized in that, The light-emitting chip group (5) includes a first light-emitting chip group (51) provided on the first light-emitting unit (21) and a second light-emitting chip group (52) provided on the second light-emitting unit (31).
5. A novel four-color LED lamp bead according to claim 4, characterized in that, The first light-emitting chip group (51) includes a plurality of first light-emitting chips (511) connected in series, and the second light-emitting chip group (52) includes a green light chip group (521) for emitting green light and a second blue light chip group (522) for emitting blue light.
6. A novel four-color LED lamp bead according to claim 5, characterized in that, The first light-emitting chip (511) is a blue light chip, the green light chip group (521) includes a plurality of green light chips connected in series, and the second blue light chip group (522) includes a plurality of blue light chips connected in series.
7. A novel four-color LED lamp bead according to claim 1, characterized in that, A fluorescent glue layer (22) is also provided on the first cup body (2), and the fluorescent glue layer (22) covers the first light-emitting unit (21) so that the first light-emitting unit (21) emits white light. The fluorescent glue layer (22) is a white fluorescent glue layer.
8. A novel four-color LED lamp bead according to claim 1, characterized in that, A transparent glue layer (32) is provided on the second cup body (3), and the transparent glue layer (32) covers the second light-emitting unit (31) for improving the light output efficiency of the second light-emitting unit (31).
9. A novel four-color LED lamp bead according to claim 1, characterized in that, The working voltage of the first light-emitting unit (21) is 3V - 100V, the working voltage of the second light-emitting unit (31) is 3V - 100V, and the working voltage of the first blue light chip group (41) is 3V - 100V.
10. A novel four-color LED lamp bead according to claim 6, characterized in that, The bracket (1) is also provided with an isolation protrusion (6) for light source isolation. The isolation protrusion (6) includes a first isolation protrusion (61) provided between the first cup body (2) and the second cup body (3) and a second isolation protrusion (62) provided between the second cup body (3) and the third cup body (4); The number of blue light chips of the first light-emitting chip (511) is the same as the number of blue light chips of the first blue light chip group (41); The number of green light chips of the green light chip group (521) is more than the number of blue light chips of the second blue light chip group (522).