CN214745511U

CN214745511U - Reflecting cup and lamp

Info

Publication number: CN214745511U
Application number: CN202120636739.7U
Authority: CN
Inventors: 李名文; 王恩忠
Original assignee: Shenzhen Topband Co Ltd
Current assignee: Shenzhen Topband Co Ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2021-11-16
Anticipated expiration: 2031-03-29

Abstract

The utility model discloses be suitable for lamps and lanterns technical field, provide a reflection of light cup and lamps and lanterns, reflection of light cup includes: the cup body is provided with an inner cavity and comprises a small opening end and a large opening end; the inner wall of cup is formed by connecting in proper order along the axial of cup a plurality of light distribution faces, every light distribution face is including connecting a plurality of reflection planes that form the annular around the central axis of cup, the adjacent reflection plane on a plurality of light distribution faces is connected to macrostoma end direction one-to-one from the osculum end, the reflection plane on the axial of a plurality of light distribution faces increases from the osculum end to macrostoma end direction gradually, and the contained angle between two adjacent reflection planes on a plurality of light distribution faces increases from the osculum end to macrostoma end direction gradually. The utility model provides a reflection of light cup can control the reflection of light well, makes grading light more even, can satisfy the grading demand, can obtain even circular facula again.

Description

Reflecting cup and lamp

Technical Field

The utility model relates to the technical field of lamps and lanterns, concretely relates to reflection of light cup and lamps and lanterns.

Background

The LED has the advantages of small volume, light weight, solid state, long service life, special wavelength, lower driving voltage, high light efficiency, low energy consumption, safety, reliability, durability and difficult color decay, so the LED is widely applied to LED lamps. In the LED lamp, light emitted by the LED light source irradiates the inner wall of the reflecting cup, is reflected by the inner wall of the reflecting cup and then is transmitted outwards, the original transmission direction of the light is changed by controlling the reflecting curved surface of the reflecting cup, and the effective utilization of the light energy is realized. For example, light emitted from an LED light source of an LED flashlight needs to be condensed by a reflective cup and then emitted.

In the prior art, a reflective cup of a lamp is generally in a horn shape, an inner cavity is arranged inside the reflective cup, the reflective cup is provided with a large opening end and a small opening end, and an LED light source is arranged in one end of the inner cavity close to the small opening end. The light emitted by the LED light source irradiates the inner wall of the reflecting cup, and then is gathered and spread outwards from the large opening end after being reflected by the inner wall of the reflecting cup. Because the inner wall of the reflection cup is generally set to be the whole reflection curved surface, the light emitted by the LED light source is distributed by utilizing the reflection curved surface, but the uniformity of the light distributed by utilizing the whole reflection curved surface is poor, the uniform circular condensation light spots are not favorably obtained, and the user experience effect is poor.

SUMMERY OF THE UTILITY MODEL

The utility model provides a reflection of light cup aims at solving the reflection of light cup among the prior art and has the grading light degree of consistency poor, is unfavorable for obtaining even circular spotlight facula, the poor problem of user experience effect.

The utility model discloses a realize like this, provide a reflection of light cup, include:

the cup body is provided with an inner cavity and comprises a small opening end and a large opening end;

the inner wall of the cup body is formed by sequentially connecting a plurality of light distribution surfaces along the axial direction of the cup body, each light distribution surface comprises a plurality of reflection planes which are connected around the central axis of the cup body to form a ring shape, the adjacent reflection planes of the light distribution surfaces are connected from the small opening end to the large opening end in a one-to-one correspondence mode, the projection length of the reflection planes of the light distribution surfaces in the axial direction of the cup body is gradually increased from the small opening end to the large opening end, and the included angles between the adjacent two reflection planes of the light distribution surfaces are gradually increased from the small opening end to the large opening end.

Preferably, the projection lengths of the reflection planes of the light distribution surfaces in the axial direction of the cup body are gradually increased in an equal difference relationship from the small opening end to the large opening end.

Preferably, the difference between the projection lengths of the reflection planes of two adjacent light distribution surfaces in the axial direction of the cup body is 0.3-1 mm.

Preferably, the included angle between two adjacent reflecting planes of the light distribution surfaces is 170-180 degrees.

Preferably, the inner wall is provided with a plurality of parabolas annularly distributed around the central axis of the cup body, the adjacent reflecting planes of the plurality of light distribution surfaces are correspondingly connected one by one and longitudinally distributed between the two adjacent parabolas, and the front end point and the rear end point of the side edge on the same side of each reflecting plane longitudinally distributed between the two adjacent parabolas are both positioned on the same parabola.

Preferably, an included angle between two adjacent reflecting planes of each light distribution surface is 150-170 degrees.

The utility model also provides a lamp, including foretell anti-light cup and LED light source, the LED light source set up in anti-light cup the inner chamber is close little mouthful end.

Preferably, the lamp further comprises a fixing plate, and the LED light source is fixed on the fixing plate.

Preferably, the fixing plate is provided with a positioning hole, the small opening end of the reflection cup is provided with a positioning column matched with the positioning hole, and the positioning column is matched with the positioning hole so that the LED light source is located on the central axis of the inner cavity.

The utility model provides a plurality of light distribution surfaces that the anti-light cup formed through setting up along the axial of cup in proper order connecting in the inner wall of cup, every light distribution surface includes and forms annular a plurality of plane of reflection around the central axis connection of cup, and the light that the LED light source sent is reflected through the plane of reflection on a plurality of light distribution surfaces, and the reflection of control light that can be better makes the grading light more even, can satisfy the grading demand, can obtain even circular facula again; moreover, because the projection length of the reflecting planes of the plurality of light-matching surfaces in the axial direction of the cup body gradually increases from the small opening end to the large opening end, and the included angle between two adjacent reflecting planes of the plurality of light-matching surfaces gradually increases from the small opening end to the large opening end, the reflecting light of the reflecting planes of the plurality of light-matching surfaces can have a regular pattern, and the obtained circular light spots are more uniform.

Drawings

Fig. 1 is a schematic perspective view of a reflective cup according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a reflective cup according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional structure view of a reflective cup according to an embodiment of the present invention;

fig. 4 is a schematic view of the reflection cup reflecting light emitted from the LED light source according to the embodiment of the present invention;

fig. 5 is a schematic view of each reflection plane of a plurality of light-matching surfaces of the light-reflecting cup according to an embodiment of the present invention;

fig. 6 is an exploded perspective view of a lamp part structure according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The embodiment of the utility model provides a reflection of light cup is through setting up a plurality of light distribution faces that form along the axial of cup in proper order connection at the inner wall of cup, and every light distribution face includes and forms annular a plurality of plane of reflection around the central axis connection of cup, and the light that the LED light source sent is reflected through the plane of reflection of a plurality of light distribution faces, and the reflection of control light that can be better makes the grading light more even, can satisfy the grading demand, can obtain even circular facula again; moreover, because the projection length of the reflecting planes of the plurality of light-matching surfaces in the axial direction of the cup body gradually increases from the small opening end to the large opening end, and the included angle between two adjacent reflecting planes of the plurality of light-matching surfaces gradually increases from the small opening end to the large opening end, the reflecting light of the reflecting planes of the plurality of light-matching surfaces can have a regular pattern, and the obtained circular light spots are more uniform.

Referring to fig. 1 to 5, an embodiment of the present invention provides a reflective cup 100, including:

the cup body 1 is provided with an inner cavity, and the cup body 1 comprises a small opening end 11 and a large opening end 12;

cup 1's inner wall is formed by connecting in proper order along cup 1's axial by a plurality of light distribution faces 13, every light distribution face 13 is including connecting a plurality of reflection planes 131 that form annular around cup 1's the central axis, the adjacent reflection plane 131 of a plurality of light distribution faces 13 connects to the 12 directions one-to-one of macrostoma end from osculum end 11, and the reflection plane 131 of a plurality of light distribution faces 13 is in the epaxial projection length of cup 1 from osculum end 11 to macrostoma end 12 direction crescent, and the contained angle between two adjacent reflection planes 131 of a plurality of light distribution faces 13 is from osculum end 11 to macrostoma end 12 directions crescent.

The embodiment of the utility model provides an in, cup 1 roughly is tubaeform, and cup 1 includes that osculum end 11 and macrostoma end 12, and osculum end 11 and macrostoma end 12 are equipped with the opening respectively, and the osculum end 11 opening of 1 one end of cup is little, and the macrostoma end 12 opening of the 1 other end of cup is big. One end of the inner cavity of the cup body 1, which is close to the small opening end 11, is used for accommodating the LED light source 200, and the large opening end 12 is used for focusing light, so that light emitted from the inner cavity 10 by the LED light source 200 is controlled within a small light-emitting angle range, thereby realizing a light-focusing function.

The embodiment of the utility model provides an in, a plurality of light distribution surfaces 13 connect gradually at the inner wall of inner chamber 10 along cup 1's axial, and every light distribution surface 13 is connected by the central axis around cup 1 and is formed annular a plurality of plane of reflection 131 and constitute, makes a plurality of plane of reflection 131 be many rings and distributes in cup 1's inner wall. The adjacent reflection planes 131 of the light-matching surfaces 13 are connected in a one-to-one correspondence manner from the small opening end 11 to the large opening end 12, so that the reflection planes 131 of different light-matching surfaces 13 are gradually changed, and thus, light rays emitted by the LED light source 200 which is placed in the inner cavity and close to the small opening end 11 are reflected by the reflection planes 131 of the light-matching surfaces 13 and then are transmitted outwards from the focused light rays of the large opening end 12. Utilize the reflection of plane formula, compare the diffuse reflection of curved surface, make the light reflection more regular, the reflection of control light that can be better can satisfy the grading demand, can obtain even circular facula again.

Moreover, because the projection length of the reflection plane 131 of a plurality of light-matching surfaces 13 in the axial direction of the cup body 1 gradually increases from the small opening end 11 to the large opening end 12, the included angle between two adjacent reflection planes 131 of a plurality of light-matching surfaces 13 gradually increases from the small opening end 11 to the large opening end 12, the continuous gradual change of the plurality of reflection planes 131 is realized, the reflection effect of the plurality of reflection planes 131 which are continuously gradually changed is utilized, the reflection light of the reflection planes 131 of the plurality of light-matching surfaces 13 can be more regular, and the obtained circular light spots are more uniform.

Referring to fig. 3-5, as an embodiment of the present invention, the projection lengths of the reflection planes 131 of the light-distributing surfaces 13 in the axial direction of the cup body 1 are gradually increased from the small mouth end 11 to the large mouth end 12 in an equal difference relationship.

In this embodiment, the difference between the projection lengths of the reflection planes 131 of two adjacent light distribution surfaces 13 to the axial X of the cup body 1 is a fixed value, so that the projection lengths of the reflection planes 131 of two adjacent light distribution surfaces 13 to the axial X of the cup body 1 from the small opening end 11 to the large opening end 12 are in an equal difference relationship and gradually increase, so that the reflection light of the reflection planes 131 of the light distribution surfaces 13 changes according to a certain rule, and has a rule more, so that the obtained circular light spots are more uniform.

The number of light distribution surfaces 13 is not limited, and the number of reflection planes 131 per light distribution surface 13 is not limited. As shown in fig. 5, the number of the light distribution surfaces 13 is thirteen, the reflection planes 131 of the light distribution surfaces 13 are respectively denoted by a1, a2, A3, a4, a5, A6, a7, A8, a9, a10, a11, a12 and a13, the projection lengths of the reflection planes 131 of the light distribution surfaces 13 in the axial direction X of the cup body 1 are respectively a, 2a, 3a, 4a, 5a, 6a, 7a, 8a, 9a, 10a, 11a, 12a and 13a, and the difference between the projection lengths of the reflection planes 131 of the adjacent two light distribution surfaces 13 in the axial direction X of the cup body 1 is a, wherein the value of a can be designed according to actual needs.

As an embodiment of the utility model, the difference of the reflection plane 131 of two adjacent light-matching surfaces 13 in the axial X's of cup 1 projection length is 0.3 ~ 1 mm.

In this embodiment, the difference between the projection lengths of the reflection planes 131 of two adjacent light-distribution surfaces 13 in the axial direction X of the cup body 1 may be any value from 0.3 mm to 1 mm. Preferably, the difference a is 0.5mm, which can facilitate the processing of the reflection plane 131 and make the reflected light of the reflection plane 131 more regular.

As an embodiment of the present invention, the included angle β between the reflective planes 131 of two adjacent light-matching surfaces 13 is 170-180 °. The included angle β between two adjacent reflecting planes 131 of the light-distributing surfaces 13 gradually increases from the small opening end 11 to the large opening end 12 within a range of 170 to 180 degrees, so that the reflected light of the reflecting planes 131 is more regular. For example, the included angle β between the reflective planes 131 of two adjacent light-matching surfaces 13 may be increased by 0.5 °.

As an embodiment of the utility model, the inner wall of cup 1 is equipped with a plurality of parabolas Y around cup 1's the central axis annular distribution, and the adjacent plane of reflection 131 one-to-one of a plurality of light distribution surfaces 13 is connected and longitudinal distribution between two adjacent parabolas, and the longitudinal distribution all is located same parabola at the front and back extreme point of each plane of reflection 131 homonymy side between two adjacent parabolas.

In this embodiment, a plurality of parabolas are evenly spaced around the central axis of the cup body 1 in a circular arrangement. Each of the reflecting planes 131 has a quadrilateral shape, two vertexes of the reflecting plane 131 are located on one parabola, and the other two vertexes of the reflecting plane 131 are located on an adjacent parabola, so that vertexes of one side of each of the reflecting planes 131 longitudinally distributed between the adjacent parabolas are located on the same parabola. The adjacent reflecting planes 131 of the light-distributing surfaces 13 are connected in a one-to-one correspondence and longitudinally distributed between two adjacent parabolas in a strip-shaped distribution.

As an embodiment of the present invention, the included angle α between two adjacent reflecting planes 131 of each light-distributing surface 13 is 150 to 170 °.

In this embodiment, an included angle between two adjacent reflection planes 131 of each light distribution surface 13 is any value of 150 to 170 °. Preferably, the included angle α between two adjacent reflecting planes 131 of each light-distributing surface 13 is 160 °.

Referring to fig. 6, the present invention further provides a lamp, which includes the reflective cup 100 and the LED light source 200 of the above embodiment, wherein the LED light source 200 is disposed in the inner cavity of the reflective cup 100 and near the small opening end 11.

In this embodiment, the lamp is provided with the above-mentioned reflective cup 100, and the light emitted by the LED light source 200 is reflected by the reflective planes 131 of the plurality of light distribution surfaces 13, so that the reflection of the light can be better controlled, the light distribution requirements can be met, and uniform circular light spots can be obtained. Moreover, because the axial projection length of reflection plane 131 to cup 1 of a plurality of light-distributing surfaces 13 is from small mouthful end 11 to big mouthful end 12 direction crescent, and the contained angle between two adjacent reflection planes 131 of a plurality of light-distributing surfaces is from small mouthful end 11 to big mouth end 12 direction crescent, can make the reflection plane 131 reflection light of a plurality of light-distributing surfaces 13 have the law more, make the circular facula that obtains more even.

As an embodiment of the present invention, the lamp further includes a fixing plate 300, and the LED light source 200 is fixed on the fixing plate 300. The fixing plate 300 is an aluminum substrate, which can dissipate heat of the LED light source 200.

In this embodiment, the LED light source 200 is fixed on the fixing plate 300 and is disposed in the inner cavity of the reflective cup 100 from the small opening end 11 and close to the small opening end 11.

As an embodiment of the present invention, the fixing plate 300 is provided with a positioning hole 301, the small-mouth end 11 of the reflective cup 300 is provided with a positioning column (not shown) matched with the positioning hole 301, and the positioning column is matched with the positioning hole 301 to make the LED light source 200 located on the central axis of the inner cavity of the cup body 1.

In this embodiment, the reflective cup 100 is matched with the positioning hole 301 on the fixing plate 300 through the positioning column, so that the reflective cup 100 and the fixing plate 300 can be fixed and limited, after the reflective cup 100 and the fixing plate 300 are installed in an aligned manner, the central axis of the inner cavity of the cup body 1 of the LED light source 200 can be ensured, and uniform circular light spots can be emitted from the reflective cup 100.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A reflective cup, comprising:

the inner wall of the cup body is formed by sequentially connecting a plurality of light distribution surfaces along the axial direction of the cup body, each light distribution surface comprises a plurality of reflection planes which are connected around the central axis of the cup body to form a ring, and the adjacent reflection planes of the plurality of light distribution surfaces are correspondingly connected from the small opening end to the large opening end in a one-to-one manner; the projection length of the reflecting planes of the light-matching surfaces in the axial direction of the cup body is gradually increased from the small opening end to the large opening end, and the included angle between every two adjacent reflecting planes of the light-matching surfaces is gradually increased from the small opening end to the large opening end.

2. The reflector cup as claimed in claim 1, wherein the projection lengths of the reflection planes of the light-distributing surfaces in the axial direction of the cup body are gradually increased in an equal difference relationship from the small opening end to the large opening end.

3. The reflector cup as claimed in claim 2, wherein the difference between the projection lengths of the reflection planes of two adjacent light-matching surfaces in the axial direction of the cup body is 0.3-1 mm.

4. The reflector cup as claimed in claim 1, wherein the angle between two adjacent reflective planes of the light-distributing surfaces is 170-180 °.

5. The reflector cup as claimed in claim 1, wherein the inner wall has a plurality of parabolas annularly distributed around the central axis of the cup body, adjacent reflecting planes of the plurality of light-distributing surfaces are correspondingly connected one by one and longitudinally distributed between two adjacent parabolas, and front and rear end points of the same side edge of each reflecting plane longitudinally distributed between two adjacent parabolas are located on the same parabola.

6. The reflector cup as claimed in claim 1, wherein the angle between two adjacent reflecting planes of each light-distributing surface is 150-170 °.

7. A luminaire comprising the reflector cup of any of claims 1-6 and an LED light source disposed within the interior cavity of the reflector cup proximate the small open end.

8. The light fixture of claim 7, further comprising a mounting plate, wherein the LED light source is mounted to the mounting plate.

9. The lamp of claim 8, wherein the fixing plate is provided with a positioning hole, the small opening end of the reflective cup is provided with a positioning column matched with the positioning hole, and the positioning column is matched with the positioning hole to enable the LED light source to be located on the central axis of the inner cavity.