CN222597495U - Reflective cup and lighting fixture - Google Patents

Abstract

The embodiment of the application belongs to the technical field of lighting lamps and relates to a reflective cup and a lamp, wherein the reflective cup comprises a main body, the main body is provided with a light inlet and a light outlet, the light inlet is arranged at the bottom of the main body, the light outlet is arranged at the top of the main body, the cross section area of the inner wall of the main body is gradually increased along the direction from the light inlet to the light outlet, the inner wall comprises a plurality of annular reflecting surfaces and a plurality of connecting surfaces, the reflecting surfaces are arranged along the direction from the light inlet to the light outlet and are used for reflecting light emitted from the light outlet to the light outlet, the plane where the light inlet is arranged is a horizontal plane, a first gap is reserved between projections of adjacent reflecting surfaces on the horizontal plane, and the connecting surfaces are connected with the adjacent reflecting surfaces. The lamp provided by the application can adjust the cross section area of the light outlet and the inner wall by adjusting the size of the first gap on the premise of not changing the size of the air inlet of the lamp and the inclination angle of the reflecting surface, so that the lamp can emit light rays in a larger range.

Description

Reflective cup and lighting lamp

Technical Field

The application relates to the technical field of lighting fixtures, in particular to a reflecting cup and a lighting fixture.

Background

The floodlight mode of the lighting lamp generally comprises a light source, a reflecting cup, a lens and other structures, wherein the light source is positioned at the bottom of the light-emitting cup, the lens is arranged at the top of the reflecting cup, and the reflecting cup is used for converging light rays diffused by the light source to the lens.

The reflecting cup is generally of a horn-shaped structure with a wide upper part and a narrow lower part, the side wall of the reflecting cup forms an included angle with the horizontal plane, and the upper end of the reflecting cup is provided with an opening which determines the light emergent area of the reflecting cup after light is refracted out of the reflecting cup. If the light-emitting area of the light-reflecting cup in the prior art needs to be increased, the included angle between the inner wall of the light-reflecting cup and the horizontal plane needs to be increased on the premise of ensuring that the size of the light inlet is unchanged, and therefore the opening and the light-emitting area are increased. However, when the included angle is changed, the angle of the light reflected by the inner wall of the reflecting cup is changed, and the inner wall needs to be redesigned, so that the production cost of the reflecting cup is high, and meanwhile, after the angle is increased, the shape of the reflecting cup tends to be special-shaped, and the reflecting cup is not easy to assemble with other structures.

To sum up, the light-emitting area of the existing reflective cup cannot be adjusted under the condition that the included angle formed between the inner wall and the horizontal plane is not changed, so that the reflective cup is high in production cost and poor in adaptability.

Disclosure of utility model

The technical problems to be solved by the embodiment of the application are that the existing reflective cup is high in production cost and poor in adaptability.

In order to solve the technical problems, the embodiment of the application adopts the following scheme:

a reflector cup for regulating light, the reflector cup comprising:

the main body is provided with a light inlet and a light outlet, the light inlet is positioned at the bottom of the main body, the light outlet is positioned at the top of the main body, and the cross section area of the inner wall of the main body is gradually increased along the direction from the light inlet to the light outlet;

The inner wall comprises a plurality of annular reflecting surfaces and a plurality of connecting surfaces, and the reflecting surfaces are arranged along the direction from the light inlet to the light outlet and are used for reflecting light rays emitted from the light outlet to the light outlet;

The plane where the light inlet is located is a horizontal plane, a first gap is formed between projections of adjacent reflecting surfaces on the horizontal plane, and the connecting surfaces are connected with the adjacent reflecting surfaces.

Further, the width of the first gap is 0.1 mm-0.5 mm.

Further, the reflecting surface is provided with a plurality of first reflecting protrusions along the circumferential direction of the inner wall.

Further, the first reflecting protrusions protrude toward a direction perpendicular to the reflecting surface, and/or,

The height of the first reflecting protrusion is smaller than 0.3mm.

Correspondingly, the application further provides a lamp, which comprises the reflecting cup according to any one of the above embodiments.

Further, the lamp further comprises a lens;

The lens is located at the light outlet and is provided with a light inlet surface, and the light inlet surface covers the light outlet and protrudes towards the inside of the reflecting cup.

Further, the connection surface is provided with a plurality of second reflection protrusions, and the protruding direction of the second reflection protrusions faces the light outlet and is used for scattering the light reflected to the connection surface by the light incident surface and reflecting the light to the lens again.

Further, the connection surface is provided with a plurality of reflective arc grooves, and the openings of the reflective arc grooves face the light outlet, so that the light reflected to the connection surface by the light inlet surface is scattered and reflected to the lens again.

Further, along the direction from the light inlet to the light outlet, a second gap is formed between the adjacent reflecting surfaces.

Further, a light emitting surface is arranged on one side, far away from the reflecting cup, of the lens, and a plurality of microstructures are arranged on the light emitting surface.

Compared with the prior art, the embodiment of the application has the following main beneficial effects:

The lamp provided by the application can adjust the cross section area of the light outlet and the inner wall by adjusting the size of the first gap on the premise of not changing the size of the air inlet of the lamp and the inclination angle of the reflecting surface, so that the lamp can emit light rays in a larger range.

Drawings

In order to more clearly illustrate the application or the solutions of the prior art, a brief description will be given below of the drawings used in the description of the embodiments or the prior art, it being obvious that the drawings in the description below are some embodiments of the application and that other drawings can be obtained from them without the inventive effort of a person skilled in the art.

FIG. 1 is an exploded schematic view of a light fixture of the present application;

FIG. 2 is a schematic view of a lamp according to the present application;

FIG. 3 is a cross-sectional view of the lamp of FIG. 2;

FIG. 4 is a schematic view of the structure of a reflector cup provided with a second reflector protrusion according to the present application;

FIG. 5 is a cross-sectional view of the reflector cup of FIG. 4;

FIG. 6 is an enlarged schematic view at A of FIG. 5;

FIG. 7 is a schematic view of the structure of a reflector cup provided with a reflective arc-shaped groove of the present application;

FIG. 8 is a cross-sectional view of the reflector cup of FIG. 7;

fig. 9 is an enlarged schematic view at B of fig. 8.

Reference numerals:

The light fixture comprises a light fixture 10, a first gap 20, a second gap 30, a first light path 40, a second light path 50, a first sub-light path 51, a second sub-light path 52, a third sub-light path 53, a third light path 60, a reflecting cup 100, a reflecting surface 101, a connecting surface 102, a second reflecting protrusion 103, a reflecting arc-shaped groove 104, an inner wall 110, a light inlet 120, a lens 200, a light inlet surface 201, a microstructure 210, a light source 300, an anti-dazzle cover 400 and a bracket 500.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present application. Furthermore, it should be understood that the detailed description is presented herein for purposes of illustration and description only, and is not intended to limit the application.

In the present application, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used to generally refer to the upper and lower directions of the device in actual use or operation, and specifically the directions of the drawings in the drawings, while "inner" and "outer" are used with respect to the outline of the device. In addition, in the description of the present application, the term "comprising" means "including but not limited to". The terms first, second, third and the like are used merely as labels, and do not impose numerical requirements or on the order of construction.

In the present application, "and/or" describes an association relationship of an association object, which means that there may be three relationships, for example, A and/or B, and that there is A alone, while there is A and B, and there is B alone. Wherein A, B may be singular or plural.

In the present application, "at least one" means one or more, and "a plurality" means two or more. "at least one", "at least one" or the like refer to any combination of these items, including any combination of single item(s) or plural items(s). For example, "at least one (a), b, or c)", or "at least one (a, b, and c)", may each represent a, b, c, a-b (i.e., a and b), a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple, respectively.

Various embodiments of the application may exist in a range format, it being understood that the description in a range format is merely for convenience and brevity and should not be construed as a rigid limitation on the scope of the application, as it is intended that the range description specifically disclose all possible sub-ranges and the single values within the range. For example, it should be considered that a description of a range from 1 to 6 has specifically disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., as well as single numbers within the range, such as 1, 2, 3, 4, 5, and 6, wherever the range applies. In addition, whenever a numerical range is referred to herein, it is meant to include any reference number (fractional or integer) within the indicated range. The Z direction in fig. 3, 5 and 8 is the up-down direction, X is the left-right direction, the cross section should be the interface formed by the face cut perpendicular to the Z axis, and the vertical face is the plane formed by the Z-X axis.

Referring to fig. 1 to 3, an embodiment of the present application provides a reflective cup 100 for adjusting light, the reflective cup 100 includes a main body, the main body is provided with a light inlet 120 and a light outlet (not labeled in the figure), the light inlet 120 is located at the bottom of the main body, the light outlet is located at the top of the main body, and the cross-sectional area of the inner wall 110 of the main body gradually increases along the direction from the light inlet 120 to the light outlet;

The inner wall 110 includes a plurality of annular reflecting surfaces 101 and a plurality of connecting surfaces 102, and the plurality of reflecting surfaces 101 are arranged along the direction from the light inlet 120 to the light outlet, for reflecting the light emitted from the light outlet to the light outlet;

The plane in which the light inlet 120 is located is a horizontal plane, and the adjacent reflecting surfaces 101 have a first gap 20 between projections of the horizontal plane, and the connecting surface 102 connects the adjacent reflecting surfaces 101.

In the present embodiment, the cross-sectional area of the inner wall 110 of the main body gradually increases along the direction from the light inlet 120 to the light outlet, so that the reflective cup 100 has a horn-like structure with a wide upper part and a narrow lower part, and the inner wall and the bottom wall form an obtuse angle.

In the present application, the projection of the adjacent reflecting surface 101 on the plane of the light inlet 120 has the first gap 20, so the structure of the reflector cup 100 is similar to a step shape. Referring to fig. 3, the projection of the reflecting surface 101 on the vertical plane is almost equivalent to the projection of the inner wall 110 on the vertical plane. Preferably, when the refractive surface is parallel to the horizontal plane, the projection of the reflective surface 101 on the vertical plane is equal to the projection of the inner wall 110 on the vertical plane, i.e. the connection surface 102 does not have a projection on the vertical plane.

Therefore, when the light source 300 emits light from the light inlet 120, the light will be mainly incident on the reflecting surface 101, and reflected by the reflecting surface 101 and then emitted toward the light outlet. At this time, the size of the connecting surface 102 can be changed by adjusting the size of the first gap 20, so as to change the size of the cross-sectional area of the light outlet and the inner wall 110 of the reflector cup 100. Before and after changing the size of the first Jinxi, the angle of the reflecting surface 101 and the size of the light inlet 120 are unchanged, so that the reflecting surface 101 does not need to be redesigned, meanwhile, only the radius of the reflecting cup 100 is changed, the light inlet 120 is not changed, and the assembly relationship between the light source 300 and the reflecting cup 100 is still unchanged, and the shape of the light source 300 does not need to be changed.

In summary, the embodiment of the application can adjust the size of the cross-sectional area of the light outlet and the inner wall 110 of the reflective cup 100 without changing the angle of the reflective surface 101, thereby increasing the outgoing light area of the reflective cup 100 and the adaptability of the reflective cup 100.

It should be understood that the connection surface 102 may be provided with a reflective coating, so as to have the ability to reflect light, and in this case, the connection surface 102 may also be capable of receiving a portion of the light and scattering and reflecting the portion of the light to the light inlet 120. The connection surface 102 may not be provided with a reflective coating, and the connection surface 102 does not reflect light basically, so that light totally reflects through the reflective surface 101 and then exits to the light outlet, thereby facilitating adjustment of brightness and concentration degree of light by adjusting the angle of the reflective surface 101.

Further, referring to fig. 3, the width of the first gap 20 is 0.1mm to 0.5mm.

In the present embodiment, when the connection surface 102 is a horizontal surface, the width of the first gap 20 is equal to the width of the connection surface 102, and the width direction is the X direction in fig. 3. The width of the first gap 20 may be any one or a range of any two of 0.1mm, 0.2mm, 0.3mm, 0.4mm, and 0.5 mm.

If the reflecting surface 101 is in a planar structure, the light source 300 emits to the reflecting surface 101, and the light reflected by the reflecting surface 101 to the light outlet is substantially parallel and concentrated at the center of the light outlet, at this time, the uniformity of the light emitted from the reflecting cup 100 is poor, which is easy to cause the user's eyes to be stimulated.

Further, in order to solve the above-mentioned problems, referring to fig. 3 to 6, the reflective surface 101 is provided with a plurality of first reflective protrusions along the circumferential direction of the inner wall 110.

In this embodiment, the first reflective protrusion may be formed by arching the reflective surface 101, or may be connected to the reflective surface 101. The plurality of first reflecting protrusions are distributed around the central axis of the reflector cup 100 along the circumferential direction of the inner wall 110, and at this time, gaps are formed between the adjacent first reflecting protrusions. Referring to fig. 3, the light emitted by the light source 300 forms a first light path 40 and a second light path 50, and the first light path 40 is directed toward the light outlet. The second light path 50 irradiates the first reflective protrusion, so that the light distributed in the first reflective protrusion forms a divergent light path after being reflected, that is, the light emitted from the light outlet after being reflected by the first reflective protrusion covers a larger area, but not concentrates in the center of the light outlet, at this time, the light is uniformly distributed and the light mixing effect is improved.

In summary, the first reflective protrusion of the present embodiment can improve the uniformity and the light mixing effect of the emergent light of the reflective cup 100, so as to prevent the eyes of the user from being stimulated. It should be appreciated that, to facilitate understanding that the range and uniformity of light rays exiting the reflecting cup 100 and the light mixing effect are improved after the light rays are reflected by the reflecting protrusions, the second optical path 50 in fig. 3 includes a first sub-optical path 51, a second sub-optical path 52, and a third sub-optical path 53.

Further, referring to fig. 3 to 6, the first reflective protrusion protrudes toward a direction perpendicular to the reflective surface 101.

In this embodiment, the first reflective protrusion protruding towards the direction perpendicular to the reflective surface 101 is understood as a perpendicular to the reflective surface 101 of the first reflective protrusion lying on a line of symmetry of the reflective surface 101, i.e. the perpendicular evenly dividing the reflective surface 101 into two parts. At this time, the light paths of the light rays reflected by the first reflective protrusions face the light inlet 120, so that the light rays reflected to the light source 300 are prevented from affecting the brightness of the outgoing light of the reflective cup 100 when the first reflective protrusions protrude toward the light source 300.

Further, the protrusion height of the first reflective protrusion is less than 0.3mm.

In this embodiment, the protrusion height of the first reflective protrusion is understood to be a length from the highest point of the first reflective protrusion to a perpendicular line of the reflective surface 101, which is located on a symmetry line of the reflective surface 101 when the first reflective protrusion protrudes toward a direction perpendicular to the reflective surface 101, is less than 0.3 mm. It should be understood that the protrusion height may be any one of 0.01mm, 0.05mm, 0.1mm, 0.15mm, 0.2mm, 0.25mm, 0.3 mm.

Accordingly, referring to fig. 1 to 3, the present application further provides a lamp 10, wherein the lamp 10 includes the reflector cup 100 according to any of the above embodiments.

In this embodiment, since the light fixture 10 includes the reflective cup 100 according to any one of the above embodiments, the light fixture 10 can adjust the cross-sectional area of the light outlet and the inner wall 110 by adjusting the size of the first gap 20, so that the light fixture 10 can have a larger range of outgoing light without changing the size of the air inlet of the light fixture 10 and the inclination angle of the reflective surface 101.

Further, referring to fig. 1 to 3, the lamp 10 further includes a lens 200, the lens 200 is located at the light outlet, and is provided with a light incident surface 201, and the light incident surface 201 covers the light outlet and protrudes toward the inside of the reflector cup 100.

In this embodiment, the light source 300 directly emits light to the lens 200, and about 90% -95% of the light is refracted in the lens 200 along the first light path 40 and then emitted, but still 10% -5% of the light is reflected by the lens 200 to the inner wall 110 of the reflective cup 100 along the third light path 60 according to the fresnel reflection principle, and at this time, the part of the light is further reflected by the reflecting surface 101 and the connecting surface 102, thereby expanding the light mixing effect and uniformity. It should be understood that, in fig. 6 and 9, the third light path 60 is provided with three third light paths 60, and only one third light path 60 is shown in the drawings to facilitate understanding of the effect of scattering light.

Further, referring to fig. 4 to 6, the connection surface 102 is provided with a plurality of second reflective protrusions 103, and the protruding direction of the second reflective protrusions 103 faces the light outlet, so as to scatter the light reflected from the light incident surface 201 to the connection surface 102 and reflect the light to the lens 200 again.

In this embodiment, the protruding direction of the second reflective protrusion 103 faces the light outlet, so that the light reflected by the lens 200 to the second reflective protrusion 103 in the third light path 60 can be scattered and reflected again to the light outlet, and after being reflected by the second reflective protrusion 103, the light can expand the range to the whole opening range of the light outlet, thereby improving the illumination uniformity and the light mixing effect of the lamp 10.

Further, referring to fig. 7 to 9, the connection surface 102 is provided with a plurality of reflective arc grooves 104, and the openings of the reflective arc grooves 104 face the light outlet, so as to scatter the light reflected from the light incident surface 201 to the connection surface 102 and reflect the light to the lens 200 again.

In the present embodiment, the principle is the same as that of the second reflective protrusion 103, and after the light enters the reflective arc-shaped groove 104, the reflective arc-shaped groove 104 has an arc surface, so that the coverage area of the scattered light is larger than that of the light directly emitted from the first light path 40, thereby improving the illumination uniformity and the light mixing effect of the lamp 10.

Further, referring to fig. 6, a second gap 30 is formed between adjacent reflecting surfaces 101 in a direction from the light inlet 120 to the light outlet.

In this embodiment, the second gap 30 is formed between the adjacent reflecting surfaces 101 along the bottom-up direction, and at this time, the connecting surface 102 is not parallel to the horizontal plane, but forms a certain angle with the horizontal plane, that is, the inclined direction of the connecting surface 102 is similar to the inclined direction of the reflecting surface 101 at this time, because the connecting surface 102 connects the adjacent reflecting surfaces 101. At this time, the light reflected by the lens 200 to the reflective cup 100 generally has a certain angle with the central axis of the reflective cup 100, so when the connection surface 102 is inclined, more light can be received by the connection surface, and further, the light of the third light path 60 can be more effectively received, thereby further improving the illumination uniformity and the light mixing effect of the lamp 10.

It should be understood that the second reflective protrusion 103 and the reflective arc groove 104 may be formed to protrude or recess the connection surface 102, or may be formed separately and then connected to the connection surface 102.

Further, referring to fig. 1 and 2, a light-emitting surface is disposed on a side of the lens 200 away from the reflector cup 100, and a plurality of microstructures 210 are disposed on the light-emitting surface.

In the present embodiment, the microstructure 210 can further scatter the light emitted from the lens 200, thereby further improving the illumination uniformity and the light mixing effect of the lamp 10.

It should be understood that the luminaire 10 may further comprise an antiglare shield 400 and a holder 500, the holder 500 being for holding the antiglare shield 400 and for accommodating the light source 300, the reflector cup 100, and the lens 200.

It is apparent that the above-described embodiments are only some embodiments of the present application, but not all embodiments, and the preferred embodiments of the present application are shown in the drawings, which do not limit the scope of the patent claims. This application may be embodied in many different forms, but rather, embodiments are provided in order to provide a thorough and complete understanding of the present disclosure. Although the application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing description, or equivalents may be substituted for elements thereof. All equivalent structures made by the content of the specification and the drawings of the application are directly or indirectly applied to other related technical fields, and are also within the scope of the application.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, combinations, substitutions and alterations can be made hereto without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims (10)

1. A reflector cup for regulating light, the reflector cup comprising:

the main body is provided with a light inlet and a light outlet, the light inlet is positioned at the bottom of the main body, the light outlet is positioned at the top of the main body, and the cross section area of the inner wall of the main body is gradually increased along the direction from the light inlet to the light outlet;

The inner wall comprises a plurality of annular reflecting surfaces and a plurality of connecting surfaces, and the reflecting surfaces are arranged along the direction from the light inlet to the light outlet and are used for reflecting light rays emitted from the light outlet to the light outlet;

The plane where the light inlet is located is a horizontal plane, a first gap is formed between projections of adjacent reflecting surfaces on the horizontal plane, and the connecting surfaces are connected with the adjacent reflecting surfaces.

2. The reflector cup of claim 1, wherein the first gap has a width of 0.1mm to 0.5mm.

3. The reflector cup as claimed in claim 1, wherein the reflecting surface is provided with a plurality of first reflecting protrusions along a circumferential direction of the inner wall.

4. The reflector cup as claimed in claim 3, wherein the first reflector projection projects in a direction perpendicular to the reflecting surface and/or,

The height of the first reflecting protrusion is smaller than 0.3mm.

5. A luminaire characterized in that it comprises a reflector cup as claimed in any one of the preceding claims 1 to 4.

6. A light fixture as recited in claim 5, wherein the light fixture comprises a lens;

The lens is located at the light outlet and is provided with a light inlet surface, and the light inlet surface covers the light outlet and protrudes towards the inside of the reflecting cup.

7. The lamp as claimed in claim 6, wherein the connection surface is provided with a plurality of second reflective protrusions, and a protrusion direction of the second reflective protrusions faces the light outlet, so that light reflected to the connection surface by the light incident surface is scattered and reflected to the lens again.

8. A lamp as recited in claim 6, wherein the connection surface is provided with a plurality of reflective arc grooves, and an opening of the reflective arc grooves faces the light outlet for scattering light reflected from the light incident surface to the connection surface and reflecting the light to the lens again.

9. A light fixture as recited in claim 7 or claim 8, wherein a second gap is provided between adjacent ones of said reflective surfaces in a direction from said light inlet to said light outlet.

10. A light fixture as recited in claim 6, wherein a side of the lens remote from the reflector cup is provided with a light exit surface, and wherein the light exit surface is provided with a plurality of microstructures.