Patent Grant
12117141
The present application claims the benefit of priority to Chinese Patent Application No. 202320852249X, entitled “LED DOWNLIGHT”, filed with CNIPA on Apr. 17, 2023, the disclosure of which is incorporated herein by reference in its entirety for all purposes.
The present disclosure generally relates to the technical field of lighting equipment, and particularly relates to an LED downlight.
LED downlights are lighting fixtures hidden in the ceiling, casting light downwards. They have a wide range of market applications, and are a popular choice for many spaces, including ceilings of bedrooms, living rooms, and bathrooms, where they blend seamlessly with the interior decor. LED downlights can create a variety of lighting effects using different light sources, light-guiding plates, or diffusers. They're compact, yet effective in enhancing the visual appeal and depth of a room through their play of light and shadow.
As living rooms evolve to serve multiple purposes, the demand for versatile and high-quality lighting has grown. While there are LED downlights available in the market, many lack auxiliary lighting features and offer only basic lighting modes, which can limit the ambiance they create. Although these lights meet everyday lighting needs, they fall short in delivering an exceptional lighting experience for consumers.
The present disclosure provides an LED downlight that addresses the technical issue in related technology where the single lighting mode of LED downlights leads to a poor user experience.
The LED downlight includes a lamp housing, a light source plate, and a mode adjustment device; the lamp housing includes a back cover and a surface ring, wherein the surface ring is configured to divide a holding space of the back cover into at least two independent cavities; the light source plate includes at least two groups of LED light sources with different color temperatures, each group of which is arranged in one of the at least two independent cavities; the mode adjustment device includes an adjustment switch and a driver arranged independently of the lamp housing, and the adjustment switch and the driver are connected in series before being electrically connected with the LED light sources.
In an embodiment of the present disclosure, the adjustment switch is configured to output a control instruction to the driver; the driver is configured to switch light emission modes of the LED light sources based on the control instruction.
In an embodiment of the present disclosure, the driver has an internal control circuit.
In an embodiment of the present disclosure, the LED light sources have at least a first light emission mode, a second light emission mode, a third light emission mode, and a fourth light emission mode;
In an embodiment of the present disclosure, the LED light sources further include a connecting fastener, which is configured to extend through a first connecting hole on the back cover and a second connecting hole on the light source plate, to matingly connect to a connecting hole post on the surface ring.
In an embodiment of the present disclosure, the surface ring includes an annular baffle and a cylindrical baffle, and a lower edge of the cylindrical baffle abuts a light emission surface of the light source plate to divide the holding space of the back cover into the at least two independent cavities.
In an embodiment of the present disclosure, the surface ring is integrally formed through injection molding.
In an embodiment of the present disclosure, the independent cavities include a main cavity and at least one secondary cavity, and the secondary cavity is adjacent to the main cavity, and is further from a center of the back cover compared to the main cavity.
In an embodiment of the present disclosure, the annular baffle is perforated with patterned holes.
In an embodiment of the present disclosure, the annular baffle and the cylindrical baffle are made of an opaque material.
In an embodiment of the present disclosure, the lamp housing further includes a light-guiding ring and a light-transmitting cover; the light-guiding ring is disposed between the surface ring and the back cover, abutting the annular baffle, and extending outward, the light-transmitting cover is pressed against the surface ring and covers a center hole of the surface ring, and the light-transmitting cover is flush with or lower than the annular baffle when pressed against the surface ring.
In an embodiment of the present disclosure, the light-transmitting cover is a light emission surface of the main cavity.
In an embodiment of the present disclosure, the light-guiding ring is a light emission surface of the secondary cavity.
In an embodiment of the present disclosure, the light-guiding ring includes a light-guiding body in the shape of a horizontal T, and the light-guiding body includes an upper light-guiding face, a lower light-guiding face, and a side light-guiding face.
In an embodiment of the present disclosure, the light-guiding ring is made of a polymer material that diffusely reflects light.
In an embodiment of the present disclosure, the light-guiding ring is partially exposed by the back cover and the surface ring.
In an embodiment of the present disclosure, the back cover is made of a metal material.
As described above, the LED downlight of the present disclosure has the following beneficial effects:
The embodiments of the present disclosure will be described below. Those skilled can easily understand disclosure advantages and effects of the present disclosure according to contents disclosed by the specification. The present disclosure can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and disclosures without departing from the spirit of the ring is present disclosure. It should be noted that the following embodiments and the features of the following embodiments can be combined with each other if no conflict will result.
It should be noted that the drawings provided in this disclosure only illustrate the basic concept of the present disclosure in a schematic way, so the drawings only show the components closely related to the present disclosure. The drawings are not necessarily drawn according to the number, shape, and size of the components in actual implementation; during the actual implementation, the type, quantity, and proportion of each component can be changed as needed, and the layout of the components can also be more complicated.
In addition, terms like “first” and “second” are used for descriptive purpose only, and are not to be construed as indicating or implying relative importance or implicitly specifying numbers of technical features indicated. Thus, features qualified with terms like “first” and “second” may explicitly or implicitly include at least one such feature. Moreover, the technical solutions of various embodiments can be combined, provided they are feasible for someone with ordinary skills in this field. However, if the combination of technical solutions leads to contradictions or is unachievable, it should be understood that such a combination doesn't exist and is not within the scope of this disclosure.
The present disclosure provides an LED downlight that addresses the technical issue in related technology where the single lighting mode of LED downlights leads to a poor user experience. The principles and embodiments of the LED downlight will be described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can understand the LED downlight without creative labor.
Refer to
In one embodiment, the lamp housing 1 includes a back cover 11 and a surface ring 12, wherein the surface ring 12 divides a holding space of the back cover 11 into at least two independent cavities 13 (not shown in
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Preferably, the back cover 11 is provided with heat dissipation holes for dissipating heat generated by the light source plate 2.
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Preferably, the annular baffle 121 and the cylindrical baffle 122 are made of opaque materials to ensure that when the light disperses through the face ring 12, a broad and wide coverage is obtained, and it also helps to create a softer and more evenly distributed light. In other embodiments, the annular baffle 121 and the cylindrical baffle 122 of the surface ring 12 may also be of other shapes, as long as the surface ring has an isolation effect. In order to meet the different needs of users, a variety of processes may be further used to treat the surface of the surface ring 12, such as wire drawing, sanding, paint baking, etc., to enhance the texture of the surface ring 12. In one embodiment, the annular baffle 121 is perforated with patterned holes, which can effectively enhance the aesthetics of the downlight. Refer to
In an embodiment, the light source plate 2 is provided with at least two groups of LED light sources with different color temperatures, each group of which is arranged in one of the at least two independent cavities 13. In one embodiment, each LED light source refers to one LED bead.
Refer to
The light sources housed in the main cavity 131 and secondary cavity 132 operate independently without any interference. They can emit light either individually or in unison, offering a variety of lighting modes.
Refer to
The inner light source area 21 and the outer light source area 22 are respectively provided with LED beads arranged in concentric circles; the inner light source area 21 is provided with four circles of LED beads, each circle of which includes several pairs of LED1211 and LED2212, where the pairs are equidistantly distributed; each LED2212 is immediately adjacent to the LED1211 of the same pair; under the driving control of the mode adjustment device 3, LED1211 and LED2212 of the same pair can emit light separately, with different color temperatures. The outer light source area 22 is provided with one circle of LED beads LED3, which are equidistantly distributed, and the color temperature of LED3 is equal to that of either LED1211 or LED2212.
The number of LED beads in the inner light source area 21 and the number of LED beads in the outer light source area 22 may be adjusted according to the actual application scenario. The LED beads in the inner light source area 21 and the outer light source area 22 may be arranged in various ways. For example, the outer light source area 22 may also be provided with several pairs of LED1211 and LED2212, where the pairs are equidistantly distributed, each LED2212 is immediately adjacent to the LED1211 of the same pair, and under the driving control of the mode adjustment device 3, LED1211 and LED2212 of the same pair can emit light separately, with different color temperatures. Other combinations of LED beads that can achieve similar effects may also be adopted.
The outer light source area 22 is further provided with a second connecting hole 24 corresponding to the first connecting hole 111 and the connecting hole post 123. The second connecting hole 24 is provided in a gap between two adjacent LED3 beads in the outer light source area 22. It should be noted that the second connecting hole 24 corresponds to the first connecting hole 111 and the connecting hole post 123, meaning that the quantity of the second connecting hole 24 is the same as that of the first connecting hole 111, and that of the connecting hole post 123, and when installed, the position of the second connecting hole 24 is aligned with that of the first connecting hole 111, and that of the connecting hole post 123. Note, there are can be more than one first connecting holes, second connecting holes, and connecting hole posts.
Herein, the LED beads are evenly arranged in both the inner light source area 21 and the outer light source area 22, thereby ensuring the uniform emission of light from both the main light emission surface and the secondary light emission surface.
In one embodiment, the LED light sources have at least a first light emission mode, a second light emission mode, a third light emission mode, and a fourth light emission mode.
In the first light emission mode, the main light emission surface emits light, and the secondary light emission surface emits no light.
In the second light emission mode, the main light emission surface emits no light, and the secondary light emission surface emits light.
In the third light emission mode, the main light emission surface and the secondary light emission surface both emit light, but color temperatures of the main light emission surface and the secondary light emission surface are different.
In the fourth light emission mode, the main light emission surface and the secondary light emission surface both emit light, and the color temperatures of the main light emission surface and the secondary light emission surface are the same.
It should be noted that, in terms of color temperatures, light emitted by the LED light sources in the present disclosure may be categorized into different types that include, but are not limited to, warm color light (3000K), cold color light (6500K), and mixed color light (3000K˜6500K), wherein the mixed color light can be any tone of light between warm color light and cold color light.
Herein, a variety of light emission modes are provided, which caters to the diverse needs of users across multiple scenarios, reducing the need for multiple lighting fixtures in the same space.
Refer to
In one embodiment, the adjustment switch 31 of the present disclosure may employ a dial switch for outputting multiple sets of 0/1 codes, with each set of 0/1 codes being a control instruction and corresponding to one light emission mode of the LED light sources. For example, when an 8-bit dial switch is employed, the dial switch has a total of 16 dialing addresses such as 0000, 0001, . . . , 1110, and 1111, of which 0000 may be used as the code for the first light emission mode, 0001 may used as the code for the second light emission mode, 0010 may be used as the code for the third light emission mode, and 0011 may be used as the code for the fourth light emission mode. The adjustment switch 31 outputs the control instruction to the driver 32.
It should be noted that the position of the adjustment switch 31 may vary, as long as the control circuit in the driver 32 can achieve on-off control of the light sources.
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Further, the mode adjustment device may also control illumination directions of the LED light sources.
In an embodiment, the LED downlight of the present disclosure further includes a connecting fastener 4, which extends through the first connecting hole 111 on the back cover 11, and the second connecting hole 24 on the light source plate 2, and is matingly connected to the connecting hole post 123 on the surface ring 12.
Preferably, the connecting fastener 4 includes a self-tapping screw for screwing directly into the connecting hole post 123 after extending through the first connecting hole 111 on the back cover 11 and the second connecting hole 24 on the light source plate 2. In other embodiments, the connecting fastener 4 may also include a universal screw, and correspondingly a thread fitting the universal screw may be provided on the inner wall of the connecting hole post 123 for secure connection.
Herein, the installation process is simple and convenient, with a design that minimizes the risk of detachment, and the straight-down design also contributes to cost reduction by eliminating the need for light-guiding plates.
In one embodiment, the lamp housing 1 further includes a light-guiding ring 14 and a light-transmitting cover 15.
The light-guiding ring 14 is the light emission surface of the secondary cavity 132, it is disposed between the surface ring 12 and the back cover 11, abutting the annular baffle 121 while extending outward, and it is partially exposed by the back cover 11 and the surface ring 12.
Refer to
Herein, the LED downlight features auxiliary lighting, and the inclusion of the light-guiding ring adds a new dimension to the play of light and shadow, which not only enhances the ambiance of the space but also significantly improves the user experience.
The light-transmitting cover 15 is the light emission surface of the main cavity 131. The light-transmitting cover 15 is configured to be pressed against the surface ring 12 and cover an upper opening of the cylindrical baffle 122, and the light-transmitting cover 15 is flush with or lower than the annular baffle 121 when pressed against the surface ring 12.
Preferably, the back cover 11 is made of a metal material, and is made by a stamping process.
Preferably, the light-guiding ring 14 is made of a polymer material that diffusely reflects light, and the surface ring 12 is made of a polymer material.
An exemplary mode switching process of the LED downlight of the present disclosure is as follows:
When the driver 32 is initially powered on, the first light emission mode of the LED light source is first activated, where the main light emission surface emits light, and the secondary light emission surface emits no light. When the adjustment switch 31 turns the power off, the driver 32 receives a power-off signal from the adjustment switch 31 and prepares for mode switching. After the adjustment switch 31 turns the power back on, the second light emission mode is then activated, where the main light emission surface emits no light and the secondary light emission surface emits light. Similarly, after powering off and on for one more time, the third light emission mode is activated, where the main light emission surface and the secondary light emission surface both emit light, but the color temperatures of the main light emission surface and the secondary light emission surface are different. After powering off and on for yet one more time, the fourth light emission mode is activated, where the main light emission surface and the secondary light emission surface both emit light, and the color temperatures of the main light emission surface and the secondary light emission surface are the same. After powering off and on for another time, the first light emission mode is again activated. So on and so forth. In one embodiment, different color temperatures refers to color temperatures that are of different types (e.g., warm, cold, or mixed), and when two color temperatures are the same, it means that they are of the same type (e.g., warm, cold, or mixed). At the same time, the duration for which the adjustment switch 31 turns the power off needs to be controlled within a preset duration; for example, the preset duration is 2 seconds, and if the actual duration exceeds 2 seconds, the control circuit will be powered off, and the driver 32 will be restarted, at which time the first light emission mode is activated. Herein, the operation is simple and quick, which effectively improves the user experience.
The scope of the mode switching process of the LED downlight as described in the present disclosure is not limited to the sequence of operations listed above. Any scheme realized by adding or subtracting operations or replacing operations of the traditional techniques according to the principle of the present disclosure is included in the scope of the present disclosure.
The descriptions of the processes or structures corresponding to the various figures may emphasize different aspects. Parts not detailed in a particular process or structure can be referenced in the descriptions of other relevant processes or structures.
In summary, the present disclosure provides an LED downlight that addresses the technical issue in related technology where the single lighting mode of LED downlights leads to a poor user experience. The light sources housed in the main and secondary cavities operate independently without any interference. They can emit light either individually or in unison, offering a variety of lighting modes. This versatility caters to the diverse needs of users across multiple scenarios, reducing the need for multiple fixtures in the same space. The downlight also features an auxiliary lighting function, adding depth to the play of light and shadow, enhancing the ambiance of the space, and ultimately improving the user experience. The installation process is simple and convenient, with a design that minimizes the risk of detachment.
The above-mentioned embodiments are merely illustrative of the principle and effects of the present disclosure instead of restricting the scope of the present disclosure. Any person skilled in the art may modify or change the above embodiments without violating the principle of the present disclosure. Therefore, all equivalent modifications or changes made by those who have common knowledge in the art without departing from the spirit and technical concept disclosed by the present disclosure shall be still covered by the claims of the present disclosure.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202320852249.X | Apr 2023 | CN | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| 11761597 | Zheng | Sep 2023 | B1 |
| 20160258603 | Yokotani | Sep 2016 | A1 |
| 20170343190 | Georgiev | Nov 2017 | A1 |
| 20190373699 | Chen | Dec 2019 | A1 |
| Number | Date | Country |
|---|---|---|
| 2024049680 | Apr 2024 | JP |
