WO2022057899A1

WO2022057899A1 - Lighting lamp and light source system thereof

Info

Publication number: WO2022057899A1
Application number: PCT/CN2021/119074
Authority: WO
Inventors: 黄俊晖; 刘超博; 卜晨曦
Original assignee: 苏州欧普照明有限公司; 欧普照明股份有限公司
Priority date: 2020-09-21
Filing date: 2021-09-17
Publication date: 2022-03-24

Abstract

A light source system. A light emitter (100) is at least partially arranged in a first reflector (200); a light outlet (211) is formed at a first end (210) of the first reflector (200); a second reflector (300) is at least partially arranged in the first reflector (200); the projection of the light emitter (100) in the orientation of the light outlet (211) is a first projection; the projection of the end of the second reflector (300) facing towards the light outlet (211) in the orientation of the light outlet (211) is a second projection; the second projection covers the first projection; a part of light emitted by the light emitter (100) is successively reflected by the second reflector (300) and the first reflector (200) and then projected out from the light outlet (211); the other part of the light emitted by the light emitter (100) is reflected by the first reflector (200) and then projected out from the light outlet (211). Also provided is a lighting lamp, comprising the light source system. The structure is used for solving the glare problem of the lighting lamp.

Description

Lighting lamps and their light source systems

technical field

The present application relates to the technical field of lighting fixtures, and in particular, to a lighting fixture and a light source system thereof.

Background technique

Lighting lamps are widely used in home lighting, commercial lighting, industrial lighting, road lighting, landscape lighting, special lighting and other fields. The structural design brings greater challenges.

Lighting lamps using traditional optical solutions have light directly irradiated from the illuminant. If this part of the light enters the human eye, it will cause glare problems, which will lead to an uncomfortable experience for users. Therefore, the existing lighting fixtures have the problem of poor user experience.

SUMMARY OF THE INVENTION

The present application discloses a lighting fixture and a light source system thereof, which can solve the problem of serious glare in the current lighting fixture.

In order to solve the above-mentioned problems, the application adopts the following technical solutions:

A light source system for a lighting fixture, comprising a luminous body, a first reflector and a second reflector, wherein:

At least part of the illuminant is arranged in the first reflector, the first end of the first reflector is provided with a light outlet, and at least part of the second reflector is arranged in the first reflector ;

The projection of the light-emitting body on the direction of the light outlet is the first projection, the projection of the end of the second reflector facing the light outlet on the direction of the light outlet is the second projection, and the a second projection covers the first projection;

A part of the light emitted by the light-emitting body can be projected from the light outlet through the reflection of the second reflector and the first reflector in sequence, and another part of the light emitted by the light-emitting body can pass through the first reflector. Reflections are projected from the light outlet.

A lighting fixture includes the above-mentioned light source system.

The technical solution adopted in this application can achieve the following beneficial effects:

The light source system of the lighting fixture disclosed in the embodiments of the present application improves the lighting fixture in the related art, so that the light source system of the lighting fixture includes a first reflector and a second reflector, and at the same time, the illuminant is in the direction of the light outlet. The projection of the second reflector is covered by the projection of the end of the second reflector facing the light outlet on the light outlet, so that the illuminant can be blocked by the second reflector. After the reflection of the second reflector and the first reflector, it is projected from the light outlet, and another part of the light emitted by the illuminant is projected from the light outlet through the reflection of the first reflector, so as to ensure that the light emitted by the illuminant is finally projected out of the light source system. In addition, realize lighting. It can be seen that the light source system of the lighting fixture disclosed in the embodiment of the present application realizes the concealment of the illuminant under the condition that the light can be projected normally, and finally makes the user unable to see the illuminant through the light outlet, thereby achieving better anti-glare the goal of.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments or background technologies of the present application, the following briefly introduces the accompanying drawings required in the embodiments or background technologies. On the premise of no creative labor, other drawings can also be obtained from these drawings.

FIG. 1 is a schematic structural diagram of a light source system of a lighting fixture disclosed in an embodiment of the application;

2 is a cross-sectional view of a lighting fixture disclosed in an embodiment of the application;

FIG. 3 is a schematic structural diagram of a circuit board of a light source system of a lighting fixture disclosed in an embodiment of the application.

Description of reference numbers:

100 - luminous body;

200-first reflector, 210-first end, 211-light outlet, 220-second end;

300-Second reflector,

400-circuit board, 410-central area, 420-ring peripheral area,

500-light distribution device, 510-accommodating space,

600-reflection layer,

700- heat sink, h-first distance, H-second distance,

800-shell, 810-inner cavity, 820-opening, 830-lamp cavity,

900-mask,

1000-drive,

1100 - Adhesive layer.

detailed description

In order to make the objectives, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be clearly and completely described below with reference to the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

The technical solutions disclosed in the various embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Referring to FIG. 1 to FIG. 3 , an embodiment of the present application discloses a light source system for a lighting fixture. The disclosed light source system includes a light-emitting body 100 , a first reflector 200 and a second reflector 300 .

The light emitting body 100 is a light emitting device of the light source system, and the light emitting body 100 can usually be an LED light emitting body. The LED light emitting body has the advantages of high brightness, low heat generation, low energy consumption and long life. In the embodiment of the present application, at least a part of the light-emitting body 100 is disposed in the first reflector 200. Specifically, the light-emitting body 100 may be all disposed in the first reflector 200, which is beneficial to make the light emitted by the light-emitting body 100 more efficient. It is reflected in many places to achieve the purpose of improving the utilization rate of light.

Both the first reflector 200 and the second reflector 300 are reflective devices of the light source system, and can reflect the light emitted by the light-emitting body 100 . The first reflector 200 includes a first end 210 and a second end 220 . The first end 210 of the first reflector 200 is provided with a light outlet 211 , and the light emitted by the light-emitting body 100 can be finally emitted through the light outlet 211 after being reflected.

At least part of the second reflector 300 is disposed in the first reflector 200 , and the second reflector 300 can also reflect the light emitted by the light-emitting body 100 . The projection (orthographic projection) of the direction of the light-emitting body 100 on the light outlet 211 is In the first projection, the projection (orthographic projection) of the end of the second reflector 300 facing the light outlet 211 on the direction of the light outlet 211 is the second projection, and the second projection covers the first projection. That is to say, when looking into the first reflector 200 facing the light outlet 211 , the luminous body 100 is hidden inside the end of the second reflector 300 facing the light outlet 211 , so that the user cannot observe the luminous body 100 , of course, the light emitted by the light-emitting body 100 cannot be directly projected from the light outlet 211 .

Since the light-emitting body 100 can be blocked by the second reflector 300 in the direction of the light outlet 211 , in this embodiment of the present application, a part of the light emitted by the light-emitting body 100 can be reflected by the second reflector 300 and the first reflector 200 in sequence. Projected from the light outlet 211 . Another part of the light emitted by the light-emitting body 100 can be projected from the light outlet 211 through the reflection of the first reflector 200 . The light emitted by the light-emitting body 100 finally needs to be reflected before being projected from the light outlet 211 .

The light source system of the lighting fixture disclosed in the embodiments of the present application improves the lighting fixture in the related art, so that the light source system of the lighting fixture includes the first reflector 200 and the second reflector 300, and at the same time, the illuminant 100 is located at the light outlet. The upward projection of 211 is covered by the projection of the end of the second reflector 300 facing the light outlet 211 on the light outlet 211 , so that the luminous body 100 can be blocked by the second reflector 300 finally, during the working process of the luminous body 100 Among them, a part of the light emitted by the luminous body 100 can be projected from the light outlet 211 through the reflection of the second reflector 300 and the first reflector 200 in sequence, and another part of the light emitted by the illuminating body 100 can be reflected from the first reflector 200 from the light output port 211 . The port 211 is projected, so as to ensure that the light emitted by the light-emitting body 100 is finally projected out of the light source system to realize illumination. It can be seen that the light source system of the lighting fixture disclosed in the embodiments of the present application realizes the concealment of the illuminant 100 under the condition that the light can be projected normally, so that the user cannot see the illuminant 100 through the light outlet 211 , thereby achieving better performance. for anti-glare purposes.

In this embodiment of the present application, the structures of the first reflector 200 and the second reflector 300 may be various. In a specific embodiment, in the direction of the light outlet 211, the area of the cross section of the first reflector 200 increases, so that the first reflector 200 forms a structure that gradually expands toward the direction of the light outlet 211, and more It is beneficial for the light to be projected to the light outlet 211 after being reflected, thereby forming the light outlet 211 with a larger area. It should be noted that, the cross section of the first reflector 200 refers to the cross section of the first reflector 200 in a direction perpendicular to the direction of the light outlet 211 .

In an optional solution, the area of the cross section of the second reflector 300 can be increased in the direction of the light outlet 211 . Section towards the direction. In this case, the contour size of one end of the second reflector 300 adjacent to the light outlet 211 is relatively large, so that it is easier to shield the light-emitting body 100 .

In this embodiment of the present application, the number of the light-emitting body 100 may be one or multiple. The second reflector 300 may be a revolving body, a plurality of luminous bodies 100 may be arranged around the end of the second reflector 300 away from the light outlet 211, and the plurality of luminous bodies 100 can form a ring-shaped light-emitting structure, thereby improving the light-emitting performance. The light emission of the light source system is made more balanced, and the problem of uneven brightness can be alleviated.

In a further technical solution, the light source system disclosed in the embodiments of the present application may further include a light distribution device 500 , the light distribution device 500 is covered on the illuminator 100 , and the light distribution device 500 can distribute the light emitted by the illuminator 100 , the light distribution device 500 may be a uniform light device or a light condensing device, and the embodiment of the present application does not limit the specific type of the light distribution device 500 .

In order to avoid mutual interference, in an optional solution, the light source system disclosed in this embodiment of the present application may further include a plurality of light distribution devices 500 , each of which is covered and disposed on a light-emitting body 100 , That is to say, each light-emitting body 100 is individually configured with a light distribution device 500 for its light distribution, so that the optical interference between the light-emitting bodies 100 can be alleviated.

In a preferred solution, the plurality of light distribution devices 500 may have an integrated structure. During the assembly process, the plurality of light distribution devices 500 are assembled as a whole, without the need for individual installation, thereby facilitating assembly and improving assembly efficiency.

In a further technical solution, the light distribution device 500 may be a plano-convex lens, or may be a cover-shaped structural member with an accommodating space 510. Specifically, the light-emitting body 100 may be located in the accommodating space 510. The optical device 500 can not only play a role of light distribution, but also can play a role of protecting the light-emitting body 100 .

In the light source system disclosed in the embodiments of the present application, the port of the second end 220 of the first reflector 200 may be blocked by the circuit board 400 , the illuminator 100 may be fixed on the circuit board 400 , and the circuit board 400 provides installation for the illuminator 100 Location. Specifically, the light-emitting body 100 may be electrically connected to the circuit board 400 and then powered by the circuit board 400 . At the same time, the light source 100 and the circuit board 400 can form a light source board, which is beneficial to the overall assembly of the lighting fixture during the assembly process.

In a further technical solution, the circuit board 400 can block the port on the second end 220 of the first reflector 200, and the circuit board 400 can be fixedly connected with the first reflector 200. During the assembly process of the entire lighting fixture, the first A reflector 200 can be assembled using the circuit board 400 as a mounting base. At the same time, the circuit board 400 can also block the port of the second end 220 of the first reflector 200 , thereby preventing the light emitted by the light-emitting body 100 from leaking from the port of the second end 220 of the first reflector 200 . The second reflector 300 can also be fixed on the circuit board 400, so that the circuit board 400 is used as the installation basis. In an optional solution, the second reflector 300 and the circuit board 400 can be fixedly assembled through the adhesive layer 1100. .

In this embodiment of the present application, the circuit board 400 may include a central area 410 and an annular peripheral area 420 , and the annular peripheral area 420 is disposed around the central area 410 . The orthographic projection of the end of the second reflector 300 facing the light outlet 211 on the circuit board 400 is located within the central area 410 . The light-emitting body 100 is arranged within the central region 410, that is, the light-emitting body 100 is arranged outside the annular peripheral region 420. The partition design of the circuit board 400 makes the position where the light-emitting body 100 is installed on the circuit board 400 more clearly, which is beneficial to facilitate the assembly of the light-emitting body 100 .

In a further technical solution, a heat dissipation seat 700 is provided on the side of the circuit board 400 away from the light-emitting body 100 , and the heat dissipation seat 700 can play a role of heat dissipation. The heat sink 700 may be made of a material capable of efficiently dissipating heat, for example, the heat sink 700 may be a stainless steel heat sink. Alternatively, the heat dissipation base 700 can be designed as a mechanism that can easily dissipate heat. For example, the heat dissipation base 700 includes a plurality of heat dissipation pins distributed in an array.

The heat sink 700 can be directly bonded and fixed with the circuit board 400 through the thermally conductive adhesive layer. In this case, the heat generated by the circuit board 400 and the light-emitting body 100 disposed on it during operation can be quickly transmitted to the circuit board 400 through the thermally conductive adhesive layer. The heat dissipation base 700 is finally transmitted to the entire lighting fixture through the heat dissipation base 700 to achieve the purpose of rapid heat dissipation.

In the specific working process, the light emitted by the light-emitting body 100 may be projected to the central area 410 or the annular peripheral area 420 under the reflection of the first reflector 200 or the second reflector 300, in order to improve the utilization rate of light In an optional solution, the surface of at least one of the annular peripheral area 420 and the central area 410 facing the light outlet 211 is provided with a reflective layer 600, and the reflective layer 600 can make the projection to the annular peripheral area 420 or the central area. The light of 410 is reflected, which can improve the utilization of light.

At the same time, the annular peripheral region 420 may be provided with a reflection layer 600, and the reflection layer 600 can make the annular peripheral region 420 present a bright surface, thereby improving the lighting performance of the light source system.

In an optional solution, the distance between the second reflector 300 and the end face of the second end 220 of the first reflector 200 is the first distance h, and the distance between the second reflector 300 and the first reflector 200 is the first distance h. The distance between the end faces of the ends 210 is the second distance H, and the first distance h may be smaller than the second distance H. In this case, the second reflector 300 and the light-emitting body 100 can be farther away from the light outlet 211 , thereby further improving the anti-glare performance. Specifically, the first distance h may be zero.

In the embodiment of the present application, in an optional solution, in a section parallel to the direction of the light outlet 211 , the second reflector 300 has a connection line between the edge facing the light outlet 211 and the light outlet 211 and the light outlet 211 The included angle a between the orientations can be less than or equal to 45°. This arrangement can make the light outlet 211 converge as far as possible relative to the end of the second reflector 300 toward the light outlet 211 . Even if the light emitted by the illuminant 100 is not reflected by the second reflector 300 , it will be reflected by the first reflector 200 . Therefore, the light efficiency of the light source system can be improved, and the anti-glare performance can be further improved.

Based on the light source system disclosed in the embodiment of the present application, the embodiment of the present application discloses a lighting fixture, and the disclosed lighting fixture includes the light source system described in the above embodiments.

The lighting fixtures disclosed in the embodiments of the present application may be downlights, spotlights, and the like, and the embodiments of the present application do not limit the specific types of the lighting fixtures.

In an optional solution, the lighting fixture disclosed in the embodiment of the present application may further include a housing 800 and a mask 900, the housing 800 has an inner cavity 810 and an opening 820, the mask 900 is installed at the opening 820, and the mask 900 is connected to the housing. The body 800 encloses an inner cavity 830 of the lamp, the light source system is disposed in the inner cavity 830 of the lamp, and the orientation of the light outlet 211 is consistent with the orientation of the opening 820 . The lighting fixture disclosed in the embodiments of the present application further includes a driver 1000, and the driver 1000 is provided on the circuit board 400. Specifically, the driver 1000 may be provided in the inner cavity 830 of the fixture.

The above embodiments of this application mainly describe the differences between the various embodiments. As long as the different optimization features of the various embodiments are not contradictory, they can be combined to form better embodiments. No longer.

The above descriptions are merely examples of the present application, and are not intended to limit the present application. Various modifications and variations of this application are possible for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the scope of the claims of this application.

Claims

A light source system for a lighting fixture, comprising a light-emitting body (100), a first reflector (200) and a second reflector (300), wherein:

At least a part of the light-emitting body (100) is arranged in the first reflector (200), the first end (210) of the first reflector (200) is provided with a light outlet (211), and the first reflector (200) is provided with a light outlet (211). At least part of two reflectors (300) are arranged in the first reflector (200);

The projection of the light-emitting body (100) on the direction of the light outlet (211) is the first projection, and the end of the second reflector (300) facing the light outlet (211) is at the light outlet The upward projection of (211) is a second projection, and the second projection covers the first projection;

A part of the light emitted by the light-emitting body (100) can be sequentially reflected by the second reflector (300) and the first reflector (200) and projected from the light outlet (211), and the light-emitting body (100) ) can be projected from the light outlet (211) through the reflection of the first reflector (200).
The light source system according to claim 1, wherein in the direction of the light outlet (211), the area of the cross section of the second reflector (300) increases, and the cross section is the second reflection A section of the device (300) perpendicular to the facing direction of the light outlet (211).
The light source system according to claim 1, wherein the second reflector (300) is a revolving body, there are a plurality of the illuminators (100), and the plurality of the illuminators (100) surround the second reflector (100). The end of the reflector (300) facing away from the light outlet (211) is arranged.
The light source system according to claim 1, wherein there are a plurality of illuminants (100), the light source system further comprises a plurality of light distribution devices (500), each of the light distribution devices (500) being covered arranged on one of the luminous bodies (100).
The light source system according to claim 4, wherein the plurality of light distribution devices (500) are an integral structural member.
The light source system according to claim 4, wherein the light distribution device (500) has an accommodating space (510), and the light-emitting body (100) is located in the accommodating space (510).
The light source system according to claim 1, wherein the port of the second end (220) of the first reflector (200) is blocked with a circuit board (400), and the circuit board (400) is connected to the first reflector (200). A reflector (200) is fixedly connected, the light-emitting body (100) is fixed on the circuit board (400), and the light outlet ( 211).
The light source system according to claim 7, wherein the circuit board (400) comprises a central area (410) and an annular peripheral area (420) disposed around the central area (410), the second reflector (300) The orthographic projection of the end of the light outlet (211) on the circuit board (400) is located within the central area (410), and the luminous body (100) is arranged in the central area (410).
The light source system according to claim 8, wherein the surface of the annular peripheral region (420) is covered with a reflective layer (600).
The light source system according to claim 7, wherein a heat dissipation seat (700) is provided on a side of the circuit board (400) facing away from the light-emitting body (100).
The light source system according to claim 1, wherein the distance between the second reflector (300) and the end face of the second end (220) of the first reflector (200) is a first distance (h ), the distance between the second reflector (300) and the end face of the first end (210) of the first reflector (200) is the second distance (H), the first distance (h) less than the second distance (H).
A lighting fixture, comprising the light source system according to any one of claims 1-11.
The lighting fixture according to claim 12, wherein the lighting fixture comprises a housing (800) and a mask (900), the housing (800) having an inner cavity (810) and an opening (820), the mask (900) is installed at the opening (820), and the mask (900) and the housing (800) enclose a lamp cavity (830), and the light source system is arranged in the lamp cavity (830) ), and the orientation of the light outlet (211) is consistent with the orientation of the opening (820).