LED lamp
By designing the array distribution of LED clusters and using lenses in LED lamps, the problem of uneven light output at the edges is solved, thereby improving the overall light mixing uniformity and lighting effect of LED lamps.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2026-03-10
AI Technical Summary
The edge light emission and mixing effect of existing LED lights is uneven, which affects the lighting effect and user experience.
An LED cluster is composed of at least two warm white LEDs and at least two cool white LEDs, and the array is distributed in the assembly space. The warm white LEDs and cool white LEDs adjacent to each other are spaced apart in any direction. Combined with lenses and diffusers, the warm white light and cool white light of each LED cluster are fully mixed to form a uniform light output effect.
It achieves uniform light mixing across the entire light-emitting surface and edge areas of the LED luminaire, improving the lighting effect and user experience.
Smart Images
Figure CN223985095U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of lighting equipment technology, and relates to an LED lamp, especially an LED lamp with direct-lit lighting. Background Technology
[0002] like Figure 1 and Figure 2 As shown, the base plate 2 of the LED component 1 of the current LED lamp has multiple sets of LED clusters 3 spaced apart. Each LED cluster 3 consists of a warm white LED 31′ and a cool white LED 32′ arranged side by side.
[0003] like Figure 1 As shown, when the warm white LED 31' and cool white LED 32' of each LED cluster 3 are aligned side-by-side (e.g.) Figure 1 As shown, the cool white LED 32' is located to the left of the warm white LED 31'. A row of cool white LEDs 32' is located on the left edge of the base plate 2, while a row of warm white LEDs 31' is located on the right edge. Because the light emitted by the LED chips is scattered by the point-diffusing optical lens, the range of light emitted is increased. Consequently, the cool white light emitted from the row of cool white LEDs 32' on the left edge of the base plate 2 is not evenly mixed with the warm white light emitted from the warm white LEDs 31' before being emitted, and the warm white light emitted from the row of warm white LEDs 31' on the right edge of the base plate 2 is also not evenly mixed with the cool white light emitted from the cool white LEDs 32' before being emitted. Ultimately, this results in the left edge of the LED fixture emitting a cool color temperature, while the right edge emits a warm color temperature.
[0004] like Figure 2 As shown, when the side-by-side positions of warm white LED 31′ and cool white LED 32′ between two adjacent LED clusters 3 are reversed (e.g. Figure 2 As shown, in one set of LED structure 3, the cool white LED 32′ is located to the left of the warm white LED 31′, and in the other set of LED structure 3, the cool white LED 32′ is located to the right of the warm white LED 31′. The outermost column on both sides of the base plate 2 consists of multiple warm white LEDs 31′ and multiple cool white LEDs 32′ arranged alternately. Because the light emitted by the LED chip is scattered by the point-diffusing optical lens, the range of light emitted from the left and right sides of the LED lamp exhibits alternating cool and warm color temperatures.
[0005] And, as Figure 1 The top and bottom edges of the LED light fixture shown, and as... Figure 2 The LED light fixture shown has alternating cool and warm color temperatures on both the top and bottom edges.
[0006] It is evident that the edge light mixing effect of current LED lights is uneven, which affects the lighting effect and the user experience. Utility Model Content
[0007] The purpose of this application is to provide an LED lamp that solves the problem of uneven light mixing at the edges of current LED lamps, which affects the lighting effect of the LED lamps.
[0008] To achieve the above objectives, the technical solution adopted in this application is: an LED lighting fixture, comprising:
[0009] The housing has an assembly space and a light-emitting window communicating with the assembly space;
[0010] Diffuser plate, installed at the light output window;
[0011] The first LED component is installed in the assembly space. The first LED component includes a first LED light source, which is arranged on one side facing the light-emitting window. The first LED light source includes multiple warm white LEDs and multiple cool white LEDs.
[0012] At least two warm white LEDs and at least two cool white LEDs form an LED cluster, and multiple LED cluster arrays are distributed in the assembly space. In each LED cluster, adjacent warm white LEDs and cool white LEDs are spaced apart in any direction.
[0013] In some embodiments of this application, the housing has a light-emitting window with a rectangular outline, and LED clusters are distributed in a rectangular array in the assembly space, wherein multiple LED clusters are arranged at intervals along the outline shape of the light-emitting window and close to the side of the light-emitting window.
[0014] In some embodiments of this application, in each LED cluster, the spacing L1 between any adjacent warm white LEDs and cool white LEDs in any direction is equal, and the spacing between the arrayed LED clusters is L2, wherein...
[0015] In some embodiments of this application, each LED cluster includes two warm white LEDs and two cool white LEDs. In each LED cluster, the two warm white LEDs and the two cool white LEDs are arranged in a rectangular array, and the length and width directions of the rectangular array are parallel to the length and width directions of the light-emitting window of the rectangular outline, respectively.
[0016] In some embodiments of this application, the first LED component further includes multiple lenses, which are correspondingly disposed on multiple warm white LEDs and multiple cool white LEDs.
[0017] In some embodiments of this application, the LED lamp further includes a housing and a second LED component. The housing has a receiving space and an opening communicating with the receiving space. The housing is connected to the housing and located in the receiving space. The housing and the inner wall surface of the housing are spaced apart. The light-emitting window faces the opening and is smaller than the opening. The second LED component is installed on the side of the housing away from the first LED component. The second LED component emits light towards the inner wall surface.
[0018] In some embodiments of this application, the light-emitting window is located in the middle of the opening.
[0019] In some embodiments of this application, the inner wall surface is configured as a mirror-like reflective surface; or, the inner wall surface is configured as a scattering reflective surface.
[0020] In some embodiments of this application, the second LED component includes a second LED light source and a light-transmitting element. The second LED light source is fixedly installed in the housing, and the length direction of the second LED light source is consistent with the length direction of the housing. The light-transmitting element covers the second LED light source.
[0021] In some embodiments of this application, the LED lamp further includes a driver, both the first LED light source and the second LED light source are electrically connected to the driver, and the first LED light source and the second LED light source can emit light independently or simultaneously.
[0022] This application has at least the following beneficial effects:
[0023] In the LED lighting fixture of this application, at least two warm white LEDs and at least two cool white LEDs from a plurality of warm white LEDs and a plurality of cool white LEDs of the first LED component form an LED cluster, and the plurality of LED clusters are arrayed in an assembly space. When the first LED component emits light, since the warm white LEDs and cool white LEDs adjacent to each LED cluster are spaced apart in any direction, the warm white light emitted by each warm white LED in each LED cluster mixes with the cool white light emitted by its adjacent cool white LEDs (or the cool white light emitted by each cool white LED in each LED cluster mixes with the warm white light emitted by its adjacent warm white LEDs), thereby enabling each LED cluster to emit light evenly and with sufficient light mixing. In this way, not only can the entire light-emitting surface of the diffuser plate of the LED lighting fixture emit light evenly and with sufficient light mixing, but also the edge area of the multiple LED clusters along the contour of the light-emitting window can emit light evenly and with sufficient light mixing, solving the problem of uneven light mixing effect at the edge of current LED lighting fixtures, improving the overall lighting effect of the LED lighting fixture, and enhancing the user experience. Attached Figure Description
[0024] 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.
[0025] Figure 1 A front view schematic diagram of an LED component used in existing LED lighting fixtures;
[0026] Figure 2 A front view schematic diagram of another LED component used in existing LED lighting fixtures;
[0027] Figure 3 This is a schematic diagram of the assembly structure of an LED lamp according to an embodiment of this application. Figure 1 ;
[0028] Figure 4 for Figure 3 The diagram shows the assembly structure of the LED lamp. Figure 2 ;
[0029] Figure 5 for Figure 3 An exploded view of the LED lighting fixture is shown.
[0030] Figure 6 for Figure 3 The diagram shows a front view of the LED lighting fixture, in which the diffuser plate has been removed.
[0031] Figure 7 for Figure 3 A front view schematic diagram of a first LED component of an LED lighting fixture is shown;
[0032] Figure 8 This is a schematic diagram of the assembly structure of another LED lamp according to an embodiment of this application;
[0033] Figure 9 for Figure 8 The diagram shows an exploded view of the LED lighting fixture. Figure 1 ;
[0034] Figure 10 for Figure 8 The diagram shows an exploded view of the LED lighting fixture. Figure 2 ;
[0035] Figure 11 for Figure 8 A cross-sectional schematic diagram of an LED lighting fixture is shown;
[0036] Figure 12 for Figure 11 Enlarged diagram of point A in the middle.
[0037] The figures in the diagram are labeled as follows:
[0038] 10. Housing; 11. Assembly space; 12. Light emission window;
[0039] 20. Diffuser plate;
[0040] 30. First LED component; 31. Substrate; 32. First LED light source; 321. Warm white LED; 322. Cool white LED; 323. LED cluster; 33. Lens;
[0041] 40. Driver; 41. Cable;
[0042] 50. Outer shell; 51. Reception space; 52. Opening; 53. Inner wall surface;
[0043] 60. Second LED component; 61. Second LED light source; 62. Light-transmitting component. Detailed Implementation
[0044] 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.
[0045] 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.
[0046] 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.
[0047] 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.
[0048] like Figures 3 to 7 As shown, an embodiment of this application provides an LED lighting fixture including a housing 10, a diffuser plate 20, and a first LED component 30. As... Figure 4 and Figure 5 As shown, the housing 10 has an assembly space 11 and a light-emitting window 12 communicating with the assembly space 11. A diffuser plate 20 is installed in the light-emitting window 12, and a first LED component 30 is installed in the assembly space 11. The first LED component 30 includes a first LED light source 32, which is disposed on one side facing the light-emitting window 12, that is, the light emitted by the first LED light source 32 is transmitted through the diffuser plate 20 and emitted. Figure 7 As shown, the first LED light source 32 includes multiple warm white LEDs 321 and multiple cool white LEDs 322. (As...) Figures 5 to 7 As shown, at least two warm white LEDs 321 and at least two cool white LEDs 322 form an LED cluster 323. Multiple LED clusters 323 are arrayed in the assembly space 11. In each LED cluster 323, adjacent warm white LEDs 321 and cool white LEDs 322 are spaced apart in any direction.
[0049] When the first LED component 30 emits light, because the warm white LEDs 321 and cool white LEDs 322 adjacent to each other in any direction are spaced apart in each LED cluster 323, the warm white light emitted by each warm white LED 321 in each LED cluster 323 mixes with the cool white light emitted by its adjacent cool white LED 322 (or the cool white light emitted by each cool white LED 322 in each LED cluster 323 mixes with the warm white light emitted by its adjacent warm white LED 321), thus enabling each LED cluster 323 to emit light evenly and with sufficient light mixing. In this way, not only can the entire light-emitting surface of the diffuser plate 20 of the LED lamp emit light evenly and with sufficient light mixing, but also the multiple LED clusters 323 can emit light evenly and with sufficient light mixing along the contour edge area of the light-emitting window 12. This solves the problem of uneven light mixing at the edge of current LED lamps, improves the overall lighting effect of the LED lamp, and enhances the user experience.
[0050] like Figure 6As shown, the housing 10 has a rectangular light-emitting window 12, and as... Figures 5 to 7 As shown, LED clusters 323 are arranged in a rectangular array in the assembly space 11. Figure 6 As shown, multiple LED clusters 323 in all LED clusters 323 are arranged at intervals along the outline of the light-emitting window 12 and close to the side of the light-emitting window 12. That is, each side of the light-emitting window 12 of the housing 10 corresponds to a row of LED clusters 323. Since the warm white LEDs 321 and cool white LEDs 322 adjacent to each LED cluster 323 in any direction are spaced apart, each LED cluster 323 in the row of LED clusters 323 corresponding to and close to the side of the light-emitting window 12 can fully mix light and emit light uniformly. As a result, the light emitted from the edge area of the diffuser plate 20 on the side of the light-emitting window 12 is uniformly mixed and emitted. The uneven light mixing of the edge area of the diffuser plate 20 corresponding to the side of the light-emitting window 12, which is either cool color temperature, warm color temperature, or a mixture of cool and warm color temperatures, no longer occurs, thus improving the uniformity of light mixing and emission of the entire area of the diffuser plate 20.
[0051] In each LED cluster 323, the spacing L1 between any adjacent warm white LEDs 321 and cool white LEDs 322 in any direction is equal, such as... Figure 7 As shown, the spacing between adjacent LED clusters 323 in the array is L2, where In this LED lamp, the spacing L2 between adjacent LED clusters 323 with appropriate spacing ensures that the warm white LEDs 321 and cool white LEDs 322 in adjacent LED clusters 323 can mix light evenly, thereby improving the uniformity of light mixing and output across the entire area of the diffuser plate 20. For example, if the spacing L1 between any adjacent warm white LEDs 321 and cool white LEDs 322 in any direction is 15mm, and the spacing L2 between adjacent LED clusters 323 in the array is 66mm, then...
[0052] like Figures 5 to 7 As shown, each LED cluster 323 includes two warm white LEDs 321 and two cool white LEDs 322. Within each LED cluster 323, the two warm white LEDs 321 and two cool white LEDs 322 are arranged in a rectangular array, with the length and width directions of this array parallel to the length and width directions of the light-emitting window 12 of the rectangular outline. Thus, when light is emitted from each LED cluster 323, the light emitted by any one of the LEDs will mix with the light emitted by the horizontally adjacent LEDs and the vertically adjacent LEDs. Figure 7As shown, taking a warm white LED 321 in an LED cluster 323 as an example, the LEDs adjacent to the warm white LED 321 both horizontally and vertically are cool white LEDs 322. This means that the warm white light emitted by the warm white LED mixes not only with the cool white light emitted by the horizontally adjacent cool white LEDs 322, but also with the cool white light emitted by the vertically adjacent cool white LEDs 322. Every LED in each LED cluster 323 undergoes this mixing process, ultimately resulting in each LED cluster 323 uniformly illuminating the diffuser plate 20 and providing illumination.
[0053] To reduce the number of LEDs assembled in LED lamps and thus achieve cost reduction and efficiency improvement, the first LED component 30 also includes multiple lenses 33, such as... Figure 12 As shown, multiple lenses 33 are correspondingly arranged to cover multiple warm white LEDs 321 and multiple cool white LEDs 322. The lenses 33 used in the LED lamps of this application are dot-diffusing optical lenses. Dot-diffusing optical lenses float the LEDs, thereby increasing the light emission range of the LEDs. This allows the spacing between adjacent LEDs to be increased accordingly, thereby reducing the number of LEDs assembled in the LED lamps and lowering the cost of using LEDs.
[0054] like Figure 3 and Figure 5 The LED luminaire shown also includes a driver 40, which is mounted and fixed on the back side of the housing 10 away from the assembly space 11. The first LED light source 32 is electrically connected to the driver 40 via a cable 41, which passes through the side wall of the housing 10 and extends into the assembly space 11 to connect with the first LED light source 32. When the driver 40 is powered on by an external power source, the first LED light source 32 of the first LED component 30 is energized and emits light. The individual LED clusters 323 uniformly mix and emit light, illuminating the diffuser plate 20. The uniformly mixed light passes through the diffuser plate 20 and is emitted for illumination, resulting in uniform light emission across the entire surface of the diffuser plate 20.
[0055] In such Figures 3 to 7 In the LED lighting fixture shown, the first LED component 30 can be adopted as follows: Figures 5 to 7 The illustration shows an arrangement of LED clusters 323 mounted in a row on a single substrate 31. Alternatively, the first LED component 30 may be composed of multiple light strips arranged at intervals, where each light strip has a strip-shaped substrate 31 on which a row of LED clusters 323 are arranged at linear intervals.
[0056] like Figures 8 to 12As shown, another LED lamp provided in the embodiments of this application further includes a housing 50 and a second LED component 60. The housing 50 has a receiving space 51 and an opening 52 communicating with the receiving space 51. The housing 10 is connected to the housing 50 and located in the receiving space 51, that is, the aforementioned LED lamp is assembled into the receiving space 51 of the housing 50 to form another LED lamp. Figure 11 and Figure 12 As shown, the inner wall surfaces 53 of the housing 10 and the outer shell 50 are spaced apart, and the light-emitting window 12 faces the opening 52. The light-emitting window 12 and the opening 52 are in the same plane, and the light-emitting window 12 is smaller than the opening 52. Figures 10 to 12 As shown, the second LED component 60 is mounted on the side of the housing 10 opposite to the first LED component 30, and the second LED component 60 emits light towards the inner wall surface 53. In the LED lamp of this embodiment, the light emitted from the first LED component 30 is transmitted downward through the diffuser plate 20, and the light emitted from the second LED component 60 illuminates the inner wall surface 53 of the housing 50 and is reflected by the inner wall surface 53 before being emitted downward through the opening 52. Thus, the LED lamp is illuminated by a combination and mixing of two parts of directly downward emitted light, and the LED lamp is a direct-light illumination lamp.
[0057] like Figure 8 As shown, the light-emitting window 12 is located in the middle of the opening 52. That is, the areas of the opening 52 regions on both sides of the light-emitting window 12 are equal. The light emitted from the second LED component 60 is reflected by the inner wall surface 53 and then emitted downwards from the opening 52 regions on both sides of the light-emitting window 12 to illuminate the light. In addition, the light emitted from the first LED component 30 is transmitted downwards through the diffuser plate 20 to illuminate the light, thus expanding the direct illumination range of the LED lamp.
[0058] In some embodiments of this application, the inner wall surface 53 is configured as a mirror-like reflective surface. In this case, the mirror-like reflective inner wall surface 53 reflects the light emitted from the second LED component 60 in a regular direction and directs it downward to the open areas 52 located on both sides of the light-emitting window 12, resulting in a brighter lighting effect.
[0059] In some other embodiments of this application, the inner wall surface 53 is configured as a scattering reflective surface. In this case, the scattering reflective inner wall surface 53 diffusely reflects (i.e., irregularly directionally reflects) the light emitted from the second LED component 60 and emits light downwards into the open areas 52 located on both sides of the light emission window 12, resulting in softer light emission and reduced glare.
[0060] like Figures 9 to 12The LED lamp shown includes a second LED component 60 comprising a second LED light source 61 and a light-transmitting element 62. The second LED light source 61 is fixedly mounted on the housing 10, with its length aligned with the length of the housing 10. The light-transmitting element 62 covers the second LED light source 61 and is spaced apart from the inner wall surface 53. The light emitted from the second LED light source 61 is refracted by the light-transmitting element 62 and then shines onto the inner wall surface 53. Subsequently, the light is reflected by the inner wall surface 53 and shines downwards into the open areas 52 located on both sides of the light-emitting window 12.
[0061] like Figure 9 and Figure 10 The LED luminaire shown also includes a driver 40. Both the first LED light source 32 and the second LED light source 61 are electrically connected to the driver 40. The first LED light source 32 and the second LED light source 61 can emit light independently or simultaneously. When the driver 40 is connected to an external power supply, a lighting mode can be selected where the driver 40 and the first LED light source 32 are individually powered on, in which case the first LED light source 32 emits light alone; a lighting mode can also be selected where the driver 40 and the second LED light source 61 are individually powered on, in which case the second LED light source 61 emits light alone; or a lighting mode can be selected where the driver 40 and both the first LED light source 32 and the second LED light source 61 are powered on, in which case the first LED light source 32 and the second LED light source 61 emit light simultaneously.
[0062] 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 lamp, comprising: a housing (10) having an assembling space (11) and a light exit window (12) communicating with the assembling space (11); a diffusion plate (20) installed at the light exit window (12); a first LED component (30) installed in the assembling space (11), the first LED component (30) comprising first LED light sources (32) disposed towards a side of the light exit window (12), the first LED light sources (32) comprising a plurality of warm white LEDs (321) and a plurality of cool white LEDs (322); characterized in that, at least two of the warm white LEDs (321) and at least two of the cool white LEDs (322) form an LED cluster (323), a plurality of the LED clusters (323) are arrayed in the assembling space (11), and in each of the LED clusters (323), the warm white LEDs (321) and the cool white LEDs (322) are alternately arranged in any direction.
2. The LED lamp according to claim 1, characterized in that, the housing (10) has the light exit window (12) with a rectangular profile, the LED clusters (323) are arranged in a rectangular array in the assembling space (11), and a plurality of the LED clusters (323) are arranged along the profile of the light exit window (12) and close to the side edges of the light exit window (12).
3. The LED lamp according to claim 2, characterized in that, In each of the LED clusters (323), the spacing LI between any adjacent warm white LED (321) and cool white LED (322) in any direction is equal, and the pitch of the arrayed LED clusters (323) is L2, wherein 4. The LED lamp according to claim 3, characterized in that, each of the LED clusters (323) comprises two of the warm white LEDs (321) and two of the cool white LEDs (322), and in each of the LED clusters (323), the two warm white LEDs (321) and the two cool white LEDs (322) are arranged in a rectangular array, and the length and width directions of the rectangular array are parallel to the length and width directions of the light exit window (12) with a rectangular profile, respectively.
5. The LED lamp according to claim 4, characterized in that, the first LED component (30) further comprises a plurality of lenses (33), and the plurality of lenses (33) are one-to-one correspondingly arranged on the plurality of warm white LEDs (321) and the plurality of cool white LEDs (322).
6. The LED lamp according to any one of claims 1-5, characterized in that, The LED lamp further comprises a housing (50) and a second LED component (60), the housing (50) has a containing space (51) and an opening (52) communicating with the containing space (51), the shell (10) is connected to the housing (50) and located in the containing space (51), the shell (10) is arranged apart from an inner wall surface (53) of the housing (50), the light exit window (12) faces the opening (52), the light exit window (12) is smaller than the opening (52), the second LED component (60) is mounted on a side of the shell (10) away from the first LED component (30), and the second LED component (60) emits light towards the inner wall surface (53).
7. The LED lamp of claim 6, wherein, the light exit window (12) is located at a middle position of the opening (52).
8. The LED lamp of claim 6, wherein, the inner wall surface (53) is arranged as a mirror surface; or, the inner wall surface (53) is arranged as a scattering surface.
9. The LED lamp of claim 6, wherein, the second LED component (60) comprises a second LED light source (61) and a light-transmitting member (62), the second LED light source (61) is fixedly mounted on the shell (10), a length direction of the second LED light source (61) is consistent with a length direction of the shell (10), and the light-transmitting member (62) covers the second LED light source (61).
10. The LED lamp of claim 9, wherein, the LED lamp further comprises a driver (40), the first LED light source (32) and the second LED light source (61) are electrically connected to the driver (40), and the first LED light source (32) and the second LED light source (61) can emit light independently or simultaneously.