CN217109225U - Reflecting cup and lamp - Google Patents

Abstract

The embodiment of the application belongs to the technical field of illumination, and relates to a reflecting cup and a lamp. The reflection cup of the reflection cup comprises: the body, the top of body is equipped with the light-emitting window, and the bottom of body is equipped with into light mouthful, and the inner wall of body is equipped with first reflection part and second reflection part, and the internal diameter of first reflection part is steadilyd decrease to the direction of advancing light mouthful by the light-emitting window, and second reflection part is located into light mouthful department, and the internal diameter of second reflection part is to keeping away from the direction of going out light mouthful and is progressively increased. The second reflection part forms an inclined plane which inclines towards the first reflection part on the opposite side, so that light rays are reflected to the position, close to the light inlet, of the first reflection part after passing through the second reflection part and then are emitted from the light outlet after being reflected by the first reflection part, so that the light rays emitted after being reflected by the second reflection part and the first reflection part are concentrated in the middle of a main light spot formed after being reflected by the first reflection part, the edge of the main light spot is not formed into a bright ring, and further, when the wall is washed, the periphery of the wall washing light spot is not provided with the bright ring, and the wall washing effect is good.

Description

Reflecting cup and lamp

Technical Field

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

Background

The reflection of light cup is an optical device in the lamps and lanterns, mainly be used for carrying out the secondary grading for the light source, the light source is located the light inlet department of reflection of light cup, reflection of light cup adopts injection molding process to make mostly, but in actual moulding plastics, current reflection of light cup 1 advances light inlet 11 and can't accomplish absolute closed angle, as shown in fig. 1 and fig. 2, current reflection of light cup 1 advances light inlet 11 department and has one section vertical portion 12, when the light source sent light, there is some light can pass through vertical portion 12, the light angle of vertical portion 12 reflection is great, lead to the light of vertical portion 12 reflection to form the bright circle at the edge of main facula, and lamps and lanterns are closer apart from the wall when washing the wall, as shown in fig. 3, the bright circle is obvious, and then lead to wash the wall effect poor.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a reflection of light cup and lamps and lanterns for solve among the prior art reflection of light cup when the secondary light distribution, the edge of facula has bright ring, and the poor problem of wall washing effect that leads to.

In order to solve the above technical problem, an embodiment of the present application provides a reflective cup, which adopts the following technical scheme:

a reflective cup, comprising: the light emitting diode comprises a body, wherein a light outlet is formed in the top of the body, a light inlet is formed in the bottom of the body, a first reflecting portion and a second reflecting portion are arranged on the inner wall of the body, the inner diameter of the first reflecting portion is gradually decreased from the light outlet to the direction of the light inlet, the second reflecting portion is located at the light inlet, and the inner diameter of the second reflecting portion is gradually increased from the direction far away from the light outlet.

Further, the first reflection part is positioned on the inner wall of the body except the light inlet.

Further, the included angle between the second reflecting part and the vertical plane is greater than 3 degrees and smaller than 90 degrees.

Further, the height of the second reflecting portion is greater than or equal to 0.06 mm.

Furthermore, the outer wall of the body is provided with at least one positioning column which protrudes out of the light inlet.

Furthermore, one end of the positioning column, which is far away from the light outlet, is provided with a positioning part.

Further, the first reflecting part comprises one or more first reflecting surfaces, and when the number of the first reflecting surfaces is multiple, the multiple first reflecting surfaces are connected in sequence; the second reflecting part comprises one or more second reflecting surfaces, and when the number of the second reflecting surfaces is multiple, the second reflecting surfaces are sequentially connected.

In order to solve the above technical problem, an embodiment of the present application further provides a lamp, which adopts the following technical scheme:

a light fixture, comprising: a light source and a reflector cup as described above; the light source is close to the light inlet, and the light outlet surface of the light source faces the light outlet.

Further, the aperture of the light inlet is larger than the diameter of the light emitting surface of the light source.

Furthermore, the lamp also comprises a base, the light source is arranged on the base, and the reflecting cup is connected with the base.

Compared with the prior art, the embodiment of the application mainly has the following beneficial effects: a part of light emitted by the light source is reflected by the first reflecting part and then emitted from the light outlet to form a main light spot; because the inner diameter of the second reflection part increases progressively in the direction far away from the light outlet, the second reflection part forms an inclined plane inclined towards the first reflection part on the opposite side, and therefore the other part of light rays are reflected onto the first reflection part after passing through the second reflection part and then emitted from the light outlet after being reflected by the first reflection part, but are not directly emitted from the light outlet after being directly reflected by the second reflection part; because the second reflection part is positioned at the light inlet, the second reflection part reflects light to the position, close to the light inlet, of the first reflection part, and then the light rays emitted after being reflected by the second reflection part and the first reflection part are concentrated in the middle of the main light spot formed after being reflected by the first reflection part, so that the edge of the main light spot does not form a bright ring, and further, the periphery of the wall washing light spot does not have a bright ring when the wall is washed, and the wall washing effect is good; furthermore, during production, only one draft angle is required to be arranged on the negative draft, so that the inner diameter of the second reflecting part is gradually increased in the direction away from the light outlet; the application provides a reflection of light cup is not only the facula effectual, is convenient for moreover production, low in production cost.

Drawings

In order to illustrate the present application or prior art more clearly, a brief description of the drawings needed for the description of the embodiments or prior art will be given below, it being clear that the drawings in the following description are some embodiments of the present application and that other drawings can be derived from them by a person skilled in the art without inventive effort.

FIG. 1 is a schematic half-sectional view of a conventional reflector cup and a light source, wherein lines with arrows indicate the trend of light rays emitted from the light source after passing through a vertical part;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is a diagram of the wall washing effect of the light emitted from the light source after being reflected by the conventional reflector cup;

fig. 4 is a schematic half-sectional view of a reflective cup according to an embodiment of the present invention, in which a line with an arrow indicates a trend of light emitted from a light source after passing through a second reflective portion;

FIG. 5 is an enlarged view at B in FIG. 4;

fig. 6 is a diagram of the wall washing effect of the light emitted from the light source after being reflected by the reflective cup provided by the embodiment of the present invention;

fig. 7 is a schematic half-sectional view of a lamp according to an embodiment of the present invention;

fig. 8 is a schematic half-section view of another lamp provided in the embodiment of the present invention.

Reference numerals: 1. existing reflector cups; 11. a light inlet; 12. a vertical portion; 2. a light reflecting cup; 21. a body; 22. a light outlet; 23. a light inlet; 24. a first reflection section; 241. a first light-reflecting surface; 25. a second reflection section; 251. a second light-reflecting surface; 26. a positioning column; 261. a positioning part; 10. a light fixture; 3. a light source; 4. a base; 41. and (6) positioning a groove.

Detailed Description

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "including" and "having," and any variations thereof, in the description and claims of this application and the description of the above figures are intended to cover non-exclusive inclusions. The terms "first," "second," and the like in the description and claims of this application or in the above-described drawings are used for distinguishing between different objects and not for describing a particular order.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In an embodiment of the present application, as shown in fig. 4 and 5, the reflector cup 2 includes: the light source comprises a body 21, a light outlet 22 is arranged at the top of the body 21, a light inlet 23 is arranged at the bottom of the body 21, a first reflecting portion 24 and a second reflecting portion 25 are arranged on the inner wall of the body 21, the inner diameter of the first reflecting portion 24 decreases progressively from the light outlet 22 to the direction of the light inlet 23, the second reflecting portion 25 is positioned at the position of the light inlet 23, and the inner diameter of the second reflecting portion 25 increases progressively towards the direction far away from the light outlet 22.

The embodiment of the application provides a reflection of light cup 2 is applied to lamps and lanterns 10 on, reflection of light cup 2's theory of operation and beneficial effect do: arranging a light source of the lamp close to the light inlet 23, and arranging a light emitting surface of the light source towards the light outlet 22; a part of light emitted by the light source is reflected by the first reflecting part 24 and then emitted from the light outlet 22 to form a main light spot; because the inner diameter of the second reflection portion 25 increases progressively in the direction away from the light outlet 22, so that the second reflection portion 25 forms an inclined surface inclined toward the opposite first reflection portion 24, another part of light rays will be reflected onto the first reflection portion 24 after passing through the second reflection portion 25, and then emitted from the light outlet 22 after being reflected by the first reflection portion 24, rather than directly emitted from the light outlet 22 after being directly reflected by the second reflection portion 25; because the second reflection part 25 is positioned at the light inlet 23, the second reflection part 25 reflects light to the position of the first reflection part 24 close to the light inlet 23, and further, light rays emitted after being reflected by the second reflection part 25 and the first reflection part 24 are concentrated in the middle of a main light spot formed after being reflected by the first reflection part 24, so that the edge of the main light spot does not form a bright ring, and further, when the wall is washed, as shown in fig. 6, the periphery of the wall washing light spot has no bright ring, and the wall washing effect is good; further, during production, only one draft angle needs to be arranged on the negative draft, so that the inner diameter of the second reflection portion 25 increases gradually in the direction away from the light outlet 22; the application provides a reflection of light cup 2 not only the facula is effectual, is convenient for moreover production, low in production cost.

Regarding negative draft: the mold is divided into a front mold and a rear mold during injection molding, the matched surface of the front mold and the rear mold is a parting surface, the parting surface is used as a boundary, a positive mold drawing is performed when the mold drawing angle is positive, and a negative mold drawing is performed when the mold drawing angle is negative.

Further, the first reflection portion 24 is located on the inner wall of the body 21 except the light inlet 23; the light emitted by the light source 3 passes through the first reflection part 24 and then exits the light outlet 22, which is beneficial to concentrating the light emitted after being reflected by the second reflection part 25 and the first reflection part 24 in the middle of the main light spot formed after being reflected by the first reflection part 24, so that no bright ring is generated on the edge of the main light spot.

Further, as shown in fig. 5, the angle a between the second reflection portion 25 and the vertical plane is greater than 3 ° and less than 90 °. When the included angle between the second reflecting part 25 and the vertical plane is less than 3 degrees, the angle of light reflected by the second reflecting part 25 is large, so that the edge of the main light spot generates a bright ring; when the included angle between the second reflection portion 25 and the vertical plane is greater than 90 °, the light reflected by the second reflection portion 25 cannot be reflected to the first reflection portion 24, which results in reduction of light reflected out of the light outlet 22 and low optical efficiency; when the included angle a between the second reflection portion 25 and the vertical plane is greater than 3 ° and smaller than 90 °, the generation of bright ring can be prevented, the reduction of light can be avoided, and the optical efficiency can be ensured.

Further, the height of the second reflecting portion 25 is greater than or equal to 0.06 mm; is beneficial to reducing the production difficulty. The light source 3 has directivity, so that most of the light emitted by the light source 3 is reflected by the first reflection portion 24 and then emitted out of the light outlet 22 to form a main light spot and is directly emitted out of the light outlet 22 without passing through the first reflection portion 24 to form an auxiliary light spot, and only a small part of the light passes through the second reflection portion 25, so that the height of the first reflection portion 24 and the proportional relation between the first reflection portion 24 and the second reflection portion 25 are not limited, and the original light beam angle and light spot of the reflection cup 2 are prevented from being damaged.

Further, at least one positioning column 26 is disposed on an outer wall of the body 21, and the positioning column 26 protrudes from the light inlet 23; the body 21 is mounted in the luminaire 10 by means of the positioning posts 26, which makes the mounting of the reflector cup 2 simple.

Furthermore, one end of the positioning column 26 away from the light outlet 22 is provided with a positioning portion 261; the positioning portion 261 can be a positioning step or a positioning groove, and the positioning portion 261 can limit the installation position of the light reflecting plate, so that the light reflecting cup 2 is prevented from shifting.

Further, the body 21, the positioning column 26 and the positioning portion 261 are integrally formed.

Further, the first reflection portion 24 includes one or more first reflection surfaces 241, and when the number of the first reflection surfaces 241 is plural, the plural first reflection surfaces 241 are connected in sequence; the second reflecting portion 25 includes one or more second reflecting surfaces 251, and when the number of the second reflecting surfaces 251 is plural, the second reflecting surfaces 251 are connected in sequence.

Preferably, the first reflecting portion 24 includes a plurality of first reflecting surfaces 241, the plurality of first reflecting surfaces 241 are connected in sequence, and the second reflecting portion 25 includes a second reflecting surface 251; the first reflecting part 24 is a discontinuous paraboloid, the second reflecting part 25 is a continuous section surface, light spots of light emitted by the light source 3 are in the outlines of the plurality of stacked light sources 3 after being reflected by the first reflecting surface 241, when the number of the first reflecting surfaces 241 is large enough, the shape of the light spots is close to a circle, and the plurality of the first reflecting surfaces 241 are beneficial to optimizing the light spot effect; since the light rays emitted after being reflected by the second reflecting portion 25 and the first reflecting portion 24 are concentrated in the middle of the main light spot formed after being reflected only by the first reflecting portion 24, the second reflecting portion 25 does not need to be provided with a plurality of second reflecting surfaces 251, and the processing difficulty of the reflecting cup 2 can be reduced.

Further, the surfaces of the first light reflecting surface 241 and the second light reflecting surface 251 are provided with reflecting films; the reflecting film is made of aluminum; of course, the material of the reflective film is not limited thereto, and only the reflective film can reflect light.

Further, the first reflection part 24 and the second reflection part 25 are connected; the first reflection part 24 and the second reflection part 25 completely cover the inner wall of the body 21, which is beneficial for the reflection cup 2 to reflect the light emitted by the light source 3.

The embodiment of the present application further provides a lamp 10, as shown in fig. 7, where the lamp 10 includes: a light source 3 and a reflector cup 2 as described above; the light source 3 is disposed adjacent to the light inlet 23, and a light emitting surface of the light source 3 faces the light outlet 22.

The working principle and the beneficial effects of the lamp 10 provided by the embodiment of the application are as follows: a part of light emitted by the light source is reflected by the first reflecting part 24 and then emitted from the light outlet 22 to form a main light spot; because the inner diameter of the second reflection portion 25 increases progressively in the direction away from the light outlet 22, so that the second reflection portion 25 forms an inclined plane inclined toward the opposite first reflection portion 24, another part of light rays will be reflected onto the first reflection portion 24 after passing through the second reflection portion 25, and then emitted from the light outlet 22 after being reflected by the first reflection portion 24, rather than directly emitted from the light outlet 22 after being directly reflected by the second reflection portion 25; because the second reflection part 25 is positioned at the light inlet 23, the second reflection part 25 reflects light to the position of the first reflection part 24 close to the light inlet 23, and further, light rays emitted after being reflected by the second reflection part 25 and the first reflection part 24 are concentrated in the middle of a main light spot formed after being reflected by the first reflection part 24, so that the edge of the main light spot does not form a bright ring, and further, when the wall is washed, as shown in fig. 6, the periphery of the wall washing light spot has no bright ring, and the wall washing effect is good; further, during production, only one draft angle needs to be arranged on the negative draft, so that the inner diameter of the second reflection portion 25 increases gradually in the direction away from the light outlet 22; make the lamps and lanterns 10 that this application provided not only the facula effectual, be convenient for moreover production, low in production cost.

In the embodiment of the present application, the lamp 10 may be a spot lamp, a flashlight, or the like.

Further, as shown in fig. 8, the aperture of the light inlet 23 is larger than the diameter of the light emitting surface of the light source 3; the light emitted from the light source 3 may be reflected by the first reflecting portion 24 and then emitted out of the light outlet 22.

Further, the lamp 10 further comprises a base 4, the light source 3 is arranged on the base 4, and the reflective cup 2 is connected with the base 4; to enable the mounting of the light source 3 and the reflector cup 2.

Furthermore, a positioning groove 41 is formed in the base 4, and the positioning column 26 is inserted into the positioning groove 41, so that the simple installation of the reflective cup 2 is realized.

It is to be understood that the above-described embodiments are merely illustrative of some, but not restrictive, of the broad invention, and that the appended drawings illustrate preferred embodiments of the invention and do not limit the scope of the invention. This application is capable of embodiments in many different forms and is provided for the purpose of enabling a thorough understanding of the disclosure of the application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that the present application may be practiced without modification or with equivalents of some of the features described in the foregoing embodiments. All equivalent structures made by using the contents of the specification and the drawings of the present application are directly or indirectly applied to other related technical fields, and all the equivalent structures are within the protection scope of the present application.

Claims (10)

1. A reflective cup, comprising: the light emitting diode comprises a body, wherein a light outlet is formed in the top of the body, a light inlet is formed in the bottom of the body, a first reflecting portion and a second reflecting portion are arranged on the inner wall of the body, the inner diameter of the first reflecting portion is gradually decreased from the light outlet to the direction of the light inlet, the second reflecting portion is located at the light inlet, and the inner diameter of the second reflecting portion is gradually increased from the direction far away from the light outlet.

2. The reflector cup as claimed in claim 1, wherein the first reflecting portion is located on an inner wall of the body except the light inlet.

3. The reflector cup as claimed in claim 1, wherein the angle between the second reflective portion and the vertical plane is greater than 3 ° and less than 90 °.

4. The reflector cup of claim 1, wherein the height of the second reflective portion is greater than or equal to 0.06 mm.

5. The reflector cup as claimed in claim 1, wherein the outer wall of the body is provided with at least one positioning post protruding from the light inlet.

6. The reflective cup of claim 5, wherein a positioning portion is disposed at an end of the positioning pillar away from the light outlet.

7. The reflector cup as claimed in claim 1, wherein the first reflecting portion comprises one or more first reflecting surfaces, and when the number of the first reflecting surfaces is plural, the plural first reflecting surfaces are connected in sequence;

the second reflecting part comprises one or more second reflecting surfaces, and when the number of the second reflecting surfaces is multiple, the second reflecting surfaces are sequentially connected.

8. A light fixture, comprising: a light source and a reflector cup according to any of claims 1 to 7; the light source is close to the light inlet, and the light outlet surface of the light source faces the light outlet.

9. The lamp of claim 8, wherein the aperture of the light inlet is larger than the diameter of the light emitting surface of the light source.

10. The lamp of claim 8, further comprising a base, wherein the light source is disposed on the base, and wherein the reflector cup is coupled to the base.

Images