LED lamp strip and LED line lamp
By using COB packaging technology and independently controlled tri-color chipsets, the problem of unsatisfactory light mixing effect of flexible LED light strips has been solved, achieving uniform and high color rendering lighting effects, and improving lighting comfort and consistency.
Patent Information
- Application Number
- CN202520628332.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-03
AI Technical Summary
Existing flexible LED light strips suffer from unsatisfactory light mixing effects due to the use of SMD technology, resulting in poor lighting consistency and comfort.
Using COB packaging technology, the three primary color chipset and the blue LED chipset are packaged separately on a flexible circuit board and independently controlled by a control circuit board. Combined with the phosphor layer, different forms of light mixing and emission are achieved.
It achieves uniform, shadow-free lighting with high color rendering, closely resembling natural sunlight, and better light mixing, resulting in more consistent and comfortable lighting that is not glaring and enhances the user experience.
Smart Images
Figure CN223939322U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of lighting equipment technology, and in particular relates to an LED light strip and an LED linear light. Background Technology
[0002] Currently, flexible LED light strips use SMD technology (SMD is an abbreviation for Surface Mounted Devices, which refers to surface mount technology) to directly mount each LED chip with a pre-encapsulated phosphor layer onto a flexible substrate. The light emitted by LED chips of different colors is directly mixed, resulting in an unsatisfactory light mixing effect and poor lighting consistency and comfort. Utility Model Content
[0003] The purpose of this application is to provide an LED light strip and an LED linear light, which aims to solve the problem that the current LED light strips have unsatisfactory light mixing effect, resulting in poor lighting consistency and comfort.
[0004] To achieve the above objectives, according to the first aspect of this application, the technical solution adopted is: an LED light strip, comprising:
[0005] Flexible circuit board;
[0006] The first chipset includes multiple sets of three primary color chipset that are spaced apart on the flexible circuit board along the extension direction of the flexible circuit board. Each set of three primary color chipset includes a red LED chip, a green LED chip and a first blue LED chip arranged at intervals.
[0007] The second chipset includes multiple second blue LED chips, which are distributed along the extension direction of the flexible circuit board on one side of the first chipset.
[0008] The third chipset includes multiple third blue LED chips, which are distributed along the extension direction of the flexible circuit board on the other side of the first chipset.
[0009] The first fluorescent layer, the second fluorescent layer, and the third fluorescent layer, wherein the first fluorescent layer covers the second chip group to emit cool white light, the second fluorescent layer covers the third chip group to emit warm white light, and the third fluorescent layer covers the first chip group.
[0010] The control circuit board is electrically connected to one end of the flexible circuit board, and the first chipset, the second chipset and the third chipset are all electrically connected to the control circuit board through the flexible circuit board.
[0011] In some embodiments of this application, the spacing between the first chipset and the second chipset is equal to the spacing between the first chipset and the third chipset in a direction perpendicular to the extension direction of the flexible circuit board.
[0012] In some embodiments of this application, along the extension direction of the flexible circuit board, the spacing between any two adjacent chips in the first chip group is equal; the spacing between two adjacent second blue LED chips in the second chip group is equal; and the spacing between two adjacent third blue LED chips in the third chip group is equal.
[0013] In some embodiments of this application, a plurality of second blue LED chips in the second chipset are arranged facing each other in a one-to-one correspondence with a plurality of third blue LED chips in the third chipset.
[0014] In some embodiments of this application, the distribution length of a set of three primary color chips in the first chipset is equal to the spacing between two adjacent second blue LED chips.
[0015] In some embodiments of this application, the LED light strip further includes a light-transmitting layer that simultaneously covers the first fluorescent layer, the second fluorescent layer, and the third fluorescent layer.
[0016] In some embodiments of this application, the LED light strip also includes a cable and a shrink tube, the cable being electrically connected to the control circuit board, and the shrink tube covering the cable and the control circuit board.
[0017] In some embodiments of this application, the LED light strip further includes multiple control chips, which are spaced apart on the flexible circuit board along the extension direction of the flexible circuit board. The control chips are electrically connected to the control circuit board. Several groups of three primary color chip groups in the first chip group, several second blue LED chips in the second chip group, and several third blue LED chips in the third chip group are electrically connected to one of the control chips.
[0018] In some embodiments of this application, the LED light strip also includes multiple resistors distributed on a flexible circuit board. Several groups of three primary color chips in the first chipset, several second blue LED chips in the second chipset, and several third blue LED chips in the third chipset are connected in series with at least one resistor to the control chip.
[0019] According to a second aspect of this application, an LED strip light is provided, including the LED light strip as described above.
[0020] This application has at least the following beneficial effects:
[0021] The LED light strip of this application adopts COB packaging technology (COB is an abbreviation for Chip On Board, i.e., on-board chip packaging technology). Multiple sets of three primary color chips from the first chipset, multiple second blue LED chips from the second chipset, and multiple third blue LED chips from the third chipset are packaged on a flexible circuit board. A first phosphor layer covers the second chipset to emit cool white light, a second phosphor layer covers the third chipset to emit warm white light, and a third phosphor layer covers the first chipset. The first, second, and third chipsets are independently controlled by a control circuit board, allowing for different combinations and combinations to achieve various forms of mixed-light emission illumination. Compared to LED light strips using SMD packaging technology in related technologies, the LED light strip of this application achieves uniform, shadow-free illumination, high color rendering, close to natural sunlight, better light mixing, more consistent lighting effect, and comfortable, non-glaring illumination. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a front view schematic diagram of an LED light strip according to an embodiment of this application;
[0024] Figure 2 for Figure 1 A three-dimensional schematic diagram of the LED light strip is shown;
[0025] Figure 3 for Figure 2 An exploded view of the LED light strip is shown.
[0026] Figure 4 for Figure 3 Enlarged view of point B in the middle;
[0027] Figure 5 for Figure 1 Cross-sectional view along the AA direction.
[0028] The figures in the diagram are labeled as follows:
[0029] 10. Flexible circuit boards;
[0030] 20. First chipset; 21. Red LED chip; 22. Green LED chip; 23. First blue LED chip; 24. Three primary color chipset;
[0031] 30. Second chipset; 31. Second blue LED chip;
[0032] 40. Third chipset; 41. Third blue LED chip;
[0033] 51. First fluorescent layer; 52. Second fluorescent layer; 53. Third fluorescent layer; 54. Transparent layer;
[0034] 60. Control circuit board;
[0035] 71. Cable; 72. Shrink tubing; 73. Control chip; 74. Resistor. Detailed Implementation
[0036] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.
[0037] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0038] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.
[0039] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0040] According to the first aspect of this application, Figures 1 to 5As shown, the LED light strip provided in this embodiment includes a flexible circuit board 10, a first chipset 20, a second chipset 30, a third chipset 40, a first phosphor layer 51, a second phosphor layer 52, a third phosphor layer 53, and a control circuit board 60. The first chipset 20 includes multiple sets of three primary color chipsets 24 spaced apart along the extension direction of the flexible circuit board 10. Each set of three primary color chipsets 24 includes a red LED chip 21, a green LED chip 22, and a first blue LED chip 23 arranged at intervals. The second chipset 30 includes multiple second blue LED chips 31, which are arranged along the extension direction of the flexible circuit board 10. The flexible circuit board 10 extends along one side of the first chipset 20. The third chipset 40 includes multiple third blue LED chips 41, which are distributed along the extension direction of the flexible circuit board 10 on the other side of the first chipset 20. A first phosphor layer 51 covers the second chipset 30 to emit cool white light, a second phosphor layer 52 covers the third chipset 40 to emit warm white light, and a third phosphor layer 53 covers the first chipset 20. A control circuit board 60 is electrically connected to one end of the flexible circuit board 10. The first chipset 20, the second chipset 30, and the third chipset 40 are all electrically connected to the control circuit board 60 through the flexible circuit board 10.
[0041] The LED light strip of this application adopts COB packaging technology (COB is an abbreviation for Chip On Board, i.e., chip packaging technology on board). Multiple sets of three primary color chips 24 of the first chipset 20, multiple second blue LED chips 31 of the second chipset 30, and multiple third blue LED chips 41 of the third chipset 40 are packaged on the flexible circuit board 10. Furthermore, the first phosphor layer 51 covers the second chipset 30 to emit cool white light, the second phosphor layer 52 covers the third chipset 40 to emit warm white light, and the third phosphor layer 53 covers the first chipset 20. The first chipset 20, the second chipset 30, and the third chipset 40 are independently controlled by the control circuit board 60, which enables different combinations of the first chipset 20, the second chipset 30, and the third chipset 40 to achieve different forms of mixed light emission lighting. Compared to LED light strips using SMD technology in related technologies, the LED light strip of this application can achieve uniform, shadow-free lighting effects, high color rendering index, close to natural sunlight, better light mixing effect, more consistent lighting effect, and comfortable, non-glaring lighting, thus improving the user experience.
[0042] The following explanation uses the example of the control circuit board 60 controlling the first chip group 20, the second chip group 30 and the third chip group 40 to start emitting light simultaneously.
[0043] In the embodiments of this application, such as Figure 5As shown, along the direction perpendicular to the extension direction of the flexible circuit board 10, the distance between the first chip group 20 and the third chip group 40 is equal to L1, and the distance between the first chip group 20 and the second chip group 30 is L2, i.e., L1 = L2. When the control circuit board 60 controls the first chip group 20, the second chip group 30, and the third chip group 40 to start emitting light simultaneously, that is, the light emitted by the three chips groups is mixed and emitted for illumination. Since the distance between the first chip group 20 and the third chip group 40 is equal to L1, and the distance between the first chip group 20 and the second chip group 30 is L2, the light mixing efficiency between the first chip group 20 and the second chip group 30 is close to the light mixing efficiency between the first chip group 20 and the third chip group 40. Therefore, the LED light strip can achieve a uniform, shadow-free illumination effect, high color rendering, close to natural sunlight, and better light mixing effect.
[0044] And, as Figure 4 As shown, along the extension direction of the flexible circuit board 10, the spacing between any two adjacent chips in the first chip group 20 is equal, i.e., h1 = h2. The spacing between two adjacent second blue LED chips 31 in the second chip group 30 is equal. The spacing between two adjacent third blue LED chips 41 in the third chip group 40 is equal. Thus, the first chip group 20, the second chip group 30, and the third chip group 40 can all emit light uniformly, preventing any area or point on the LED strip from being too bright or too dark, ensuring uniform light emission and better light mixing.
[0045] Furthermore, such as Figure 4 As shown, the multiple second blue LED chips 31 in the second chipset 30 and the multiple third blue LED chips 41 in the third chipset 40 are arranged opposite each other in a one-to-one correspondence. Thus, in this LED light strip, the light mixing efficiency between the first chipset 20 and the second chipset 30 is further made closer to the light mixing efficiency between the first chipset 20 and the third chipset 40, thereby enabling the LED light strip to achieve a uniform, shadow-free lighting effect, high color rendering index, close to natural sunlight, and better light mixing effect.
[0046] Furthermore, such as Figure 4 As shown, the distribution length of a group of primary color chips 24 in the first chipset 20 is equal to the spacing between two adjacent second blue LED chips 31. That is, the distribution length of a group of primary color chips 24 in the first chipset 20, the spacing between two adjacent second blue LED chips 31, and the spacing between two adjacent third blue LED chips 41 are all H, as shown. Figure 4As shown. This makes the light mixing efficiency between the first chip group 20 and the second chip group 30 almost the same as that between the first chip group 20 and the third chip group 40, so that the LED light strip can achieve a uniform, shadow-free lighting effect, high color rendering, close to natural sunlight, and better light mixing effect.
[0047] In the LED light strip of this application embodiment, such as Figures 1 to 5 As shown, the LED light strip provided in this embodiment further includes a light-transmitting layer 54, which simultaneously covers a first fluorescent layer 51, a second fluorescent layer 52, and a third fluorescent layer 53. Light emitted from the first chip group 20 passes through the third fluorescent layer 53 to form white light, which then enters the light-transmitting layer 54. Light emitted from the second chip group 30 passes through the first fluorescent layer 51 to form cool white light, which then enters the light-transmitting layer 54. Light emitted from the third chip group 40 passes through the second fluorescent layer to form warm white light, which then enters the light-transmitting layer 54. These three different color temperatures of white light are mixed and adjusted within the light-transmitting layer 54. The mixed light is then emitted from the light-transmitting layer 54 for illumination, enabling the LED light strip to achieve a uniform, shadow-free illumination effect with high color rendering, close to natural sunlight. Furthermore, the light mixing effect is better, the illumination effect is more consistent, and the illumination is comfortable and non-glaring, enhancing the user experience.
[0048] And, as Figures 1 to 3 As shown, the LED light strip also includes a cable 71 and a shrink tube 72. The cable 71 is electrically connected to the control circuit board 60 and is used to connect to an external power source, thereby providing power to the control circuit board 60, the flexible circuit board 10, the red LED chips 21, green LED chips 22, and first blue LED chips 23 of the first chipset 20, the second blue LED chips 31 of the second chipset 30, and the third blue LED chips 41 of the third chipset 40. After the cable 71 is electrically connected to the control circuit board 60, the shrink tube 72 is used to wrap around the cable 71 and the control circuit board 60, thereby tightening the connection between the cable 71 and the control circuit board 60, ensuring a stable and reliable connection, and reducing the probability of the cable 71 disconnecting from the control circuit board 60 due to external forces.
[0049] like Figures 1 to 5As shown, the LED light strip provided in this embodiment of the application also includes multiple control chips 73. These control chips 73 are spaced apart along the extension direction of the flexible circuit board 10. The control chips 73 are electrically connected to the control circuit board 60. Several groups of primary color chip groups 24 in the first chip group 20, several second blue LED chips 31 in the second chip group 30, and several third blue LED chips 41 in the third chip group 40 are electrically connected to one of the control chips 73. In this embodiment, the LED light strip achieves segmented control by using multiple control chips 73. Thus, the user can cut the LED light strip to the required length according to the actual lighting scenario, and then assemble it onto the control circuit board 60 (i.e., the control chips 73 of the cut-to-length LED light strip are electrically connected through the lines of the flexible circuit board 10). This allows the light strip to be powered on and emit light for illumination.
[0050] In the LED light strip of this application embodiment, such as Figures 1 to 4 As shown, the LED light strip also includes multiple resistors 74, which are distributed on the flexible circuit board 10. Several sets of primary color chip groups 24 in the first chip group 20, several second blue LED chips 31 in the second chip group 30, and several third blue LED chips 41 in the third chip group 40 are connected in series with at least one resistor 74 to the control chip 73. In this way, each resistor 74 can divide the voltage of the corresponding primary color chip group 24, second blue LED chip 31, and / or third blue LED chip 41 connected to it, ensuring that the corresponding primary color chip group 24, second blue LED chip 31, and / or third blue LED chip 41 obtain a balanced, stable, and suitable driving voltage in the circuit. This prevents voltage overload that could cause the corresponding primary color chip group 24, second blue LED chip 31, and / or third blue LED chip 41 to break down and burn out, ensuring that each LED chip operates normally.
[0051] According to a second aspect of this application, an LED strip light is provided. The LED strip light includes the LED light strip as described above.
[0052] The LED strip used in this LED linear light achieves uniform, shadow-free lighting with high color rendering, closely resembling natural sunlight. It also has better light mixing, resulting in more consistent lighting effects. Furthermore, the lighting is comfortable and glare-free, enhancing the user experience.
[0053] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. An LED light strip, characterized in that, include: Flexible circuit board (10); The first chipset (20) includes multiple sets of three primary color chipsets (24) spaced apart along the extension direction of the flexible circuit board (10). Each set of three primary color chipsets (24) includes a red LED chip (21), a green LED chip (22) and a first blue LED chip (23) arranged at intervals. The second chipset (30) includes a plurality of second blue LED chips (31), which are distributed along the extension direction of the flexible circuit board (10) on one side of the first chipset (20). The third chipset (40) includes a plurality of third blue LED chips (41), which are distributed on the other side of the first chipset (20) along the extension direction of the flexible circuit board (10). The first fluorescent layer (51), the second fluorescent layer (52), and the third fluorescent layer (53) cover the second chip group (30) to emit cool white light, the second fluorescent layer (52) covers the third chip group (40) to emit warm white light, and the third fluorescent layer (53) covers the first chip group (20). The control circuit board (60) is electrically connected to one end of the flexible circuit board (10), and the first chipset (20), the second chipset (30) and the third chipset (40) are all electrically connected to the control circuit board (60) through the flexible circuit board (10).
2. The LED light strip according to claim 1, characterized in that, Along a direction perpendicular to the extension direction of the flexible circuit board (10), the spacing between the first chip group (20) and the second chip group (30) is equal to the spacing between the first chip group (20) and the third chip group (40).
3. The LED light strip according to claim 1, characterized in that, Along the extension direction of the flexible circuit board (10), the spacing between any two adjacent chips in the first chip group (20) is equal; the spacing between two adjacent second blue LED chips (31) in the second chip group (30) is equal; and the spacing between two adjacent third blue LED chips (41) in the third chip group (40) is equal.
4. The LED light strip according to claim 3, characterized in that, In the second chipset (30), a plurality of second blue LED chips (31) are arranged opposite each other to a plurality of third blue LED chips (41) in the third chipset (40).
5. The LED light strip according to claim 4, characterized in that, The distribution length of a group of the three primary color chips (24) in the first chip group (20) is equal to the spacing between two adjacent second blue LED chips (31).
6. The LED light strip according to any one of claims 1-5, characterized in that, The LED light strip also includes a light-transmitting layer (54), which simultaneously covers the first fluorescent layer (51), the second fluorescent layer (52), and the third fluorescent layer (53).
7. The LED light strip according to any one of claims 1-5, characterized in that, The LED light strip also includes a cable (71) and a shrink tube (72). The cable (71) is electrically connected to the control circuit board (60), and the shrink tube (72) covers the cable (71) and the control circuit board (60).
8. The LED light strip according to any one of claims 1-5, characterized in that, The LED light strip also includes multiple control chips (73), which are spaced apart on the flexible circuit board (10) along the extension direction of the flexible circuit board (10). The control chips (73) are electrically connected to the control circuit board (60). Several sets of the three primary color chip groups (24) in the first chip group (20), several second blue LED chips (31) in the second chip group (30), and several third blue LED chips (41) in the third chip group (40) are electrically connected to one of the control chips (73).
9. The LED light strip according to claim 8, characterized in that, The LED light strip also includes multiple resistors (74), which are distributed on the flexible circuit board (10). Several sets of the three primary color chip groups (24) in the first chip group (20), several second blue LED chips (31) in the second chip group (30), and several third blue LED chips (41) in the third chip group (40) are connected in series with at least one of the resistors (74) to the control chip (73).
10. An LED linear light, characterized in that, Includes the LED light strip as described in any one of claims 1-9.