Light-emitting assembly and ceiling lamp

Abstract

The embodiment of the utility model belongs to the technical field of lighting equipment, and relates to a light-emitting assembly and a ceiling lamp. The light-emitting assembly comprises an LED light source, a reflection cup and a light-transmitting lens; the LED light source is arranged at the bottom of the reflection cup, a light outlet is formed in the end, away from the LED light source, of the reflection cup, the LED light source forms a light outlet direction in the direction facing the light outlet, and the light-transmitting lens is arranged in the light outlet direction of the LED light source and spaced from the LED light source. The side face, facing the LED light source, of the light-transmitting lens is a plane or a curved face. The light emitting assembly can be effectively prevented from generating stray light during light emitting, and therefore the light emitting effect of the light emitting assembly is improved.

Description

Technical Field

[0001] The present application relates to the technical field of lighting equipment, and more specifically, to a light-emitting component and a ceiling lamp. Background Art

[0002] The light-emitting component is a device used to emit light in the light-emitting direction. The light-emitting component includes an LED light source, a reflective cup and a dust-proof lens. The LED light source is arranged on the side of the bottom of the reflective cup opposite to the light cup to emit light. The inner wall of the reflective cup has a total reflection surface. When the light emitted by the LED light source hits the total reflection surface of the inner wall of the reflective cup, the total reflection surface reflects the light to the dust-proof lens, and then the dust-proof lens further refracts the light to the outside of the light-emitting component to form light output.

[0003] However, since the angles of the light emitted by the LED light source are different, the dust-proof lens will also reflect the light emitted by the LED light source or the light reflected by the total reflection surface of the reflective cup back to the total reflection surface inside the reflective cup, and the light will be reflected by the total reflection surface there to another reflection surface. After multiple reflections, the light will finally refract from the dust-proof lens to the outside to form light. However, after the above multiple reflections, the light emission angle has deviated from the main light emission angle of the light-emitting component, causing stray light to appear outside the main light spot after the light is emitted, thereby forming light pollution and reducing the light emission effect. Utility Model Content

[0004] The technical problem to be solved by the embodiments of the present application is how to avoid stray light from appearing when the light-emitting component emits light, so as to improve the light-emitting effect.

[0005] In order to solve the above technical problems, the embodiment of the present application provides a light emitting component, which adopts the following technical solution:

[0006] The light-emitting assembly comprises: an LED light source, a reflective cup and a light-transmitting lens;

[0007] The LED light source is arranged at the bottom of the reflective cup, and a light outlet is opened at one end of the reflective cup away from the LED light source. The LED light source forms a light outlet direction toward the light outlet. The light-transmitting lens is arranged in the light outlet direction of the LED light source and is spaced from the LED light source. The side of the light-transmitting lens facing the LED light source is a flat surface or a curved surface.

[0008] Furthermore, a mounting seat is provided at the bottom of the reflective cup, the LED light source is installed in the mounting seat, the mounting seat is provided with a mounting groove at the top of the LED light source, and the light-transmitting lens is provided in the mounting groove and fixedly connected to the mounting seat.

[0009] Furthermore, the light-transmitting lens includes a plane portion and a supporting portion which are connected to each other, the plane portion and the LED light source are parallel, and the supporting portion is arranged at an edge position of the plane portion and fixedly connected to the plane portion.

[0010] Furthermore, a first interval is formed between the plane portion and the LED light source, a first bead surface is provided on the side of the plane portion facing the light outlet, a first opening is provided at the bottom of the reflective cup, and a position of the first bead surface corresponds to the first opening.

[0011] Furthermore, the light-transmitting lens includes a connecting portion and an outer convex portion which are connected to each other, the outer convex portion is protruding toward the light outlet, and the connecting portion is fixedly connected to the mounting seat.

[0012] Furthermore, a second interval is formed between the outer protrusion and the LED light source, a second bead surface is provided on the side of the outer protrusion facing the light outlet, a first opening is provided at the bottom of the reflective cup, and the position of the second bead surface corresponds to the first opening.

[0013] Furthermore, a positioning portion is formed on the outer wall of the reflective cup and protrudes toward the mounting seat, one end of the positioning portion is fixedly connected to the reflective cup, and the other end of the positioning portion is fixedly connected to the mounting seat.

[0014] Furthermore, the positioning portion includes a connected positioning column and a connecting plate, the mounting seat is provided with a positioning hole corresponding to the positioning column, and the connecting plate abuts against the top of the mounting seat and is fixedly connected to the top of the mounting seat.

[0015] In order to solve the above-mentioned technical problems, an embodiment of the present application also provides a ceiling lamp, which includes a light-emitting component, an moving head and an anti-glare cover. The anti-glare cover is arranged above one side of the light-emitting direction of the light-emitting component, and the moving head is connected between the light-emitting component and the anti-glare cover. The ceiling lamp adopts the light-emitting component as described above.

[0016] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0017] In this embodiment, a light-emitting component including an LED light source, a reflective cup and a transparent lens is provided. When the LED light source emits light in a light-emitting direction, the transparent lens refracts light within a critical angle into the reflective cup, and the reflective cup reflects this part of the light to the light outlet to form light output. At the same time, another part of the light greater than the critical angle is reflected back to the LED light source by the transparent lens, thereby achieving effective absorption of light, thereby avoiding stray light generated by the light-emitting component when emitting light, thereby improving the light-emitting effect of the light-emitting component. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the scheme in the present application, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a schematic diagram of the exploded structure of the light emitting component according to an embodiment of the present application;

[0020] Figure 2 A schematic diagram of the cross-sectional structure of the light-emitting component along the center line of the light-transmitting lens of an embodiment of the present application;

[0021] Figure 3 A schematic diagram of a light path of a light emitting component according to an embodiment of the present application;

[0022] Figure 4 This is a schematic diagram of an exploded structure of a light emitting component according to another embodiment of the present application;

[0023] Figure 5 A schematic cross-sectional structure diagram of a light-emitting component along the center line of a light-transmitting lens according to another embodiment of the present application;

[0024] Figure numerals: LED light source 1, reflective cup 2, light-transmitting lens 3, light outlet 4, mounting seat 5, first opening 21, positioning portion 22, plane portion 31, supporting portion 32, connecting portion 33, outer protrusion 34, mounting groove 51, positioning hole 52, positioning column 221, connecting plate 222, first bead surface 311, second bead surface 341. DETAILED DESCRIPTION

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0026] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0027] Embodiment 1 of the present application

[0028] refer to Figure 1 and Figure 2 , the light emitting assembly of the present application comprises: an LED light source 1, a reflective cup 2 and a light-transmitting lens 3;

[0029] The LED light source 1 is arranged at the bottom of the reflective cup 2, and a light outlet 4 is opened at one end of the reflective cup 2 away from the LED light source 1. The LED light source 1 forms a light outlet direction toward the light outlet 4. The light-transmitting lens 3 is arranged in the light outlet direction of the LED light source 1 and is spaced from the LED light source 1. The side of the light-transmitting lens 3 facing the LED light source 1 is a plane or a curved surface, and the critical angle of the light outlet 4 is the same as the critical angle of the light-transmitting lens 3.

[0030] In this embodiment, the LED light source 1 is arranged in a plane at the bottom of the reflective cup 2 for emitting light. The reflective cup 2 is arranged above the LED light source 1, and its inner wall is a total reflection surface. Openings are respectively arranged at both ends of the reflective cup 2. The light emitted by the LED light source 1 is emitted from the opening at the bottom of the reflective cup 2 to the opening at the top of the reflective cup 2. This direction is the light emitting direction of the LED light source 1. There is a predetermined distance between the transparent lens 3 and the surface of the LED light source 1, and the side of the transparent lens 3 facing the LED light source 1 is a plane or a curved surface.

[0031] In the specific implementation, refer to Figure 3 The light emitted by the LED light source 1 will be refracted by the light-transmitting lens 3, and then reflected by the total reflection surface in the reflective cup 2. The reflected light will be emitted to the outside through the light outlet 4 at the top of the reflective cup 2 to form light output. When the light with a critical angle greater than the critical angle of the light-transmitting lens 3 passes through the light-transmitting lens 3, the light-transmitting lens 3 will directly reflect this part of the light back to the LED light source 1, thereby effectively avoiding the formation of stray light when the light-emitting component emits light.

[0032] A mounting seat 5 is provided at the bottom of the reflective cup 2 , the LED light source 1 is installed in the mounting seat 5 , a mounting groove 51 is provided at the top of the LED light source 1 , and the light-transmitting lens 3 is provided in the mounting groove 51 and fixedly connected to the mounting seat 5 .

[0033] In this embodiment, a receiving groove with an opening is provided at the bottom of the mounting seat 5, the LED light source 1 is arranged and fixed on a mounting plate, the mounting plate is installed corresponding to the receiving groove, so that the LED light source 1 leaks out through the opening on the receiving groove, the mounting groove 51 on the mounting seat 5 is formed by the top surface of the mounting seat 5 being recessed to the bottom surface, the mounting groove 51 has a predetermined depth, when the light-transmitting lens 3 is placed in the mounting groove 51, the projection of the light-transmitting lens 3 is completely covered on the LED light source 1, the height of the highest point of the light-transmitting lens 3 is greater than or equal to the depth of the mounting groove 51, and the light-transmitting lens 3 and the mounting groove 51 can be adhered and fixed by glue or solid glue. In this embodiment, by installing the LED light source 1 and the light-transmitting lens 3 on the mounting seat 5, it is possible to effectively prevent the relative position of the LED light source 1 and the light-transmitting lens 3 from being offset due to vibration or shaking during use of the light-emitting component, thereby causing the light emission direction of the LED light source 1 and the refraction direction of the light-transmitting lens 3 to change, thereby effectively improving the overall stability of the device.

[0034] refer to Figure 2 The light-transmitting lens 3 includes a connected plane portion 31 and a supporting portion 32 , the plane portion 31 is parallel to the LED light source 1 , and the supporting portion 32 is disposed at an edge of the plane portion 31 and fixedly connected to the plane portion 31 .

[0035] In this embodiment, the plane portion 31 refers to a truncated cone-shaped lens body with a circular cross-section on the light-transmitting lens 3, and the support portion 32 refers to a circular ring-shaped lens body located below the truncated cone-shaped lens body and connected and fixed to the bottom of the lens body. The plane portion 31 and the support portion 32 can be bonded and fixed by glue or solid glue, or can be formed as one piece by a specific processing technology. The top surface of the circular ring of the support portion 32 and the edge position of the bottom of the plane portion are connected, and the projection of the support portion 32 on the plane portion 31 is a circular ring with an edge corresponding to the circular shape of the plane portion 31. In this embodiment, by providing a light-transmitting lens 3 including a plane portion 31 and a support portion 32, the part of the light-transmitting lens 3 used for light refraction is effectively separated from the LED light source 1, so that the light-transmitting lens 3 can effectively refract the light and refract the light into the LED light source 1 for light absorption.

[0036] A first interval A1 is formed between the plane portion 31 and the LED light source 1 . A first bead surface 311 is disposed on the side of the plane portion 31 facing the light outlet 4 . A first opening 21 is disposed at the bottom of the reflective cup 2 . The position of the first bead surface 311 corresponds to the first opening 21 .

[0037] In this embodiment, the height of the first interval A1 is 5mm-8mm, preferably 5mm, which can be adjusted accordingly according to actual conditions. The bead surface is an irregular surface composed of a number of closely arranged and outwardly protruding spherical surfaces. The first bead surface 311 is arranged on the side where the light is emitted after the light-transmitting lens 3 refracts. The light refracted by the light-transmitting lens 3 passes through the spherical surface on the first bead surface 311 and then enters the reflective cup 2. In this embodiment, the height difference between the highest protruding point of the spherical surface on the first bead surface 311 and the lowest point of the spherical surface is used as the height of the spherical surface protrusion. In specific implementation, the height of the spherical surface protrusion is preset to 0.5mm-1mm, preferably 0.5mm, which can be adjusted according to actual conditions. In this embodiment, by arranging the first bead surface 311 corresponding to the first opening 21 on the plane portion 31, the light incident from the LED light source 1 can be effectively refracted into the reflective cup 2 evenly, so as to improve the uniformity of the emitted light and effectively improve the light emission effect.

[0038] A positioning portion 22 is formed on the outer wall of the reflective cup 2 protruding toward the mounting seat 5. One end of the positioning portion 22 is fixedly connected to the reflective cup 2, and the other end of the positioning portion 22 is fixedly connected to the mounting seat 5. The positioning portion 22 includes a connected positioning column 221 and a connecting plate 222. A positioning hole 52 corresponding to the positioning column 221 is formed on the mounting seat 5. The connecting plate 222 abuts against the top of the mounting seat 5 and is fixedly connected to the top of the mounting seat 5.

[0039] In this embodiment, the positioning portion 22 is formed by extending downward from the middle of the outer wall of the reflective cup 2 near the bottom. The positioning portion 22 can be formed integrally with the reflective cup 2, or can be fixed by gluing or fixing glue. The positioning hole 52 on the mounting seat 5 passes through both ends of the mounting seat 5. When the positioning column 221 is inserted into the positioning hole 52, the connecting plate 222 abuts against the top surface of the mounting seat 5. In this embodiment, the positioning portion 22 including the positioning column 221 and the connecting plate 222 is provided on the reflective cup 2, and the positioning hole 52 is provided on the mounting seat 5, so that the radial relative position of the reflective cup 2 and the mounting seat 5 is fixed by the cooperation of the positioning column 221 and the positioning hole 52, and the axial relative position of the reflective cup 2 and the mounting seat 5 is fixed by the fixed connection between the connecting plate 222 and the top of the mounting seat 5, which effectively prevents the relative position of the reflective cup 2 and the mounting seat 5 from being deviated due to vibration or shaking during the use of the light emitting component, thereby causing the light path of the light to change, and further improves the overall stability of the device.

[0040] The embodiment of the present application is provided with a light-emitting component including an LED light source 1, a reflective cup 2 and a transparent lens 3. When the LED light source 1 emits light in a light-emitting direction, the transparent lens 3 refracts the light within the critical angle into the reflective cup, and the reflective cup 2 reflects this part of the light onto the light outlet 4 to form light output. At the same time, another part of the light greater than the critical angle is reflected back to the LED light source 1 by the transparent lens 3, thereby achieving effective absorption of the light, so as to avoid the light-emitting component from generating stray light when emitting light, thereby improving the light-emitting effect of the light-emitting component.

[0041] Embodiment 2 of the present application

[0042] refer to Figure 4-Figure 5 This embodiment is basically the same as the first embodiment, except that: the light-transmitting lens 3' comprises a connecting portion 33 and an outer protrusion 34 connected to each other, the outer protrusion 34 is protruded toward the light outlet 4, and the connecting portion 33 is fixedly connected to the mounting seat 5.

[0043] A second interval A2 is formed between the outer protrusion 34 and the LED light source 1 . A second bead surface 341 is provided on the side of the outer protrusion 34 facing the light outlet 4 . A first opening 21 is provided at the bottom of the reflective cup 2 . The position of the second bead surface 321 corresponds to the first opening 21 .

[0044] In this embodiment, the outer protrusion 34 of the light-transmitting lens 3' is arranged as a convex lens, and the connecting portion 33 is arranged around the outer edge of the convex lens. The connecting portion 33 and the outer protrusion 34 can be formed as one piece by a specific processing technology, or can be adhered and fixed by glue or fixing glue; the side of the outer protrusion 34 facing the LED light source 1 is a curved surface, which corresponds to the curved surface on the side of the outer protrusion 34 protruding toward the light outlet 4. The height of the second interval A2 formed between the outer protrusion 34 and the LED light source 1 gradually decreases from the center of the outer protrusion 34 to the edge. The height of the second interval A2 is determined by the distance between the highest point of the curved surface on the side of the outer protrusion 34 facing the LED light source 1 and the LED light source 1. The height of the second interval A2 is preset to 5mm-8mm, preferably 5mm, and can be adjusted according to actual conditions. The second bead surface 341 is arranged on the curved surface of the outer protrusion 34 protruding toward the outside.

[0045] This embodiment provides a light-transmitting lens 3 ′ including a connecting portion 33 and an outer protruding portion 34 , so that the light can be more effectively reflected back to the LED light source 1 , thereby improving the effectiveness of the device.

[0046] Embodiment 3 of the present application

[0047] An embodiment of the present application also provides a ceiling lamp, which includes a light-emitting component, an moving head and an anti-glare cover. The anti-glare cover is arranged above one side of the light-emitting direction of the light-emitting component. The moving head is connected between the light-emitting component and the anti-glare cover. The light-emitting component adopts a light-emitting component as described in any one of the above items.

[0048] This embodiment, by adopting a ceiling lamp with a light-emitting assembly as described in any of the above embodiments, can effectively prevent the light-emitting assembly from generating stray light when emitting light, thereby improving the light-emitting effect of the light-emitting assembly.

[0049] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A light emitting component, characterized in that: The light-emitting assembly comprises: an LED light source, a reflective cup and a light-transmitting lens; The LED light source is arranged at the bottom of the reflective cup, and a light outlet is opened at one end of the reflective cup away from the LED light source. The LED light source forms a light outlet direction toward the light outlet. The light-transmitting lens is arranged in the light outlet direction of the LED light source and is spaced from the LED light source. The side of the light-transmitting lens facing the LED light source is a flat surface or a curved surface.

2. The light emitting assembly according to claim 1, characterized in that: A mounting seat is provided at the bottom of the reflective cup, the LED light source is installed in the mounting seat, a mounting groove is provided at the top of the LED light source, and the light-transmitting lens is provided in the mounting groove and fixedly connected to the mounting seat.

3. The light emitting assembly according to claim 2, characterized in that: The light-transmitting lens comprises a plane portion and a supporting portion which are connected to each other. The plane portion is parallel to the LED light source. The supporting portion is arranged at an edge of the plane portion and is fixedly connected to the plane portion.

4. The light emitting assembly according to claim 3, characterized in that: A first interval is formed between the plane portion and the LED light source, a first bead surface is arranged on a side of the plane portion facing the light outlet, a first opening is arranged at the bottom of the reflective cup, and a position of the first bead surface corresponds to the first opening.

5. The light emitting assembly according to claim 2, characterized in that: The light-transmitting lens comprises a connecting portion and an outer convex portion which are connected to each other. The outer convex portion is arranged to protrude toward the light outlet. The connecting portion is fixedly connected to the mounting seat.

6. The light emitting assembly according to claim 5, characterized in that: A second interval is formed between the outer protrusion and the LED light source, a second bead surface is arranged on the side of the outer protrusion facing the light outlet, a first opening is opened at the bottom of the reflective cup, and the position of the second bead surface corresponds to the first opening.

7. The light emitting assembly according to claim 4 or 6, characterized in that: A positioning portion is formed on the outer wall of the reflective cup and protrudes toward the mounting seat. One end of the positioning portion is fixedly connected to the reflective cup, and the other end of the positioning portion is fixedly connected to the mounting seat.

8. The light emitting assembly according to claim 7, characterized in that: The positioning part includes a connected positioning column and a connecting plate. The mounting seat is provided with a positioning hole corresponding to the positioning column. The connecting plate abuts against the top of the mounting seat and is fixedly connected to the top of the mounting seat.

9. A ceiling lamp, characterized in that: The ceiling lamp includes a light-emitting component, an moving head and an anti-glare cover. The anti-glare cover is arranged above one side of the light-emitting direction of the light-emitting component. The moving head is connected between the light-emitting component and the anti-glare cover. The light-emitting component adopts the light-emitting component described in any one of claims 1 to 8.

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