CN111998241A - Light source system of lighting lamp and lighting lamp - Google Patents

Abstract

The invention discloses a light source system of a lighting fixture and a lighting fixture. The light source system comprises a luminous body, a first reflector and a second reflector, wherein the first reflector is at least partially sleeved in the second reflector, The first reflector includes a first end and a second end, the first end is provided with a first light outlet, the first light outlet is located in the second reflector, and the second reflector includes a first light outlet. Three ends and a fourth end, the third end is provided with a second light outlet; the illuminator is arranged in the first reflector, and the first reflector has a first reflection surface facing the illuminator , in the direction of the optical axis of the light-emitting body, the orthographic projection of the first reflecting surface covers the orthographic projection of the light-emitting body; the light emitted by the light-emitting body passes through the first reflector and the second reflection At least one of the devices is then emitted from the second light outlet. This solution can solve the problem of poor user experience in lighting fixtures.

Description

Lighting source system and lighting fixture

technical field

The invention relates to the technical field of lighting, in particular to a light source system of a lighting fixture and a lighting fixture.

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 invention discloses a light source system for a lighting fixture and the lighting fixture, which can solve the problem of poor user experience existing in the lighting fixture.

In order to solve the above problems, the present invention adopts the following technical solutions:

A light source system for a lighting fixture, comprising a luminous body, a first reflector and a second reflector, the first reflector is at least partially sleeved in the second reflector, and the first reflector includes a first reflector. end and a second end, the first end is provided with a first light outlet, the first light outlet is located in the second reflector, the second reflector includes a third end and a fourth end, the The third end is provided with a second light outlet;

The luminous body is arranged in the first reflector, the first reflector has a first reflective surface facing the luminous body, and in the direction of the optical axis of the luminous body, the first reflective surface is the orthographic projection covers the orthographic projection of the illuminant;

The light emitted by the light-emitting body passes through at least one of the first reflector and the second reflector and is emitted from the second light outlet.

A lighting fixture, comprising the above-mentioned light source system.

The technical scheme adopted in the present invention can achieve the following beneficial effects:

The light source system disclosed in the embodiment of the present invention improves the structure of the light source system of 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 makes the light source on the optical axis of the luminous body. In the direction, the orthographic projection of the first reflector toward the first reflective surface of the illuminant covers the orthographic projection of the illuminant, and finally the illuminant can be blocked by the first reflector. In the case of normal projection of light, the concealment of the luminous body is realized, and finally it is difficult for the user to see the luminous body through the second light outlet, so as to achieve better anti-glare purposes, so as to improve the user's ability to use lighting fixtures. experience.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the background technology, the following briefly introduces the drawings required in the embodiments or the background technology. 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 disclosed in an embodiment of the present invention, and the arrow line in the figure is the direction of the light path;

FIG. 2 is a schematic structural diagram of a lighting fixture disclosed in an embodiment of the present invention.

Description of reference numbers:

100 - luminous body;

200-first reflector, 210-first reflecting surface, 220-first end, 221-first light outlet, 230-second end;

300 - the second reflector, 310 - the third end, 311 - the second light outlet, 320 - the fourth end;

400-light distribution, 500-circuit board, 600-shell, 610-inner cavity, 620-opening, 630-bottom wall, 640-side wall, 700-mask, 800-driver.

Detailed ways

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

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

Referring to FIG. 1 and FIG. 2 , 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 invention, the luminous body 100 is arranged in the first reflector 200 . Specifically, at least part of the illuminating body 100 is arranged in the first reflector 200 . Specifically, the illuminating body 100 may be entirely arranged in the first reflector. inside the reflector 200 , which is beneficial to make the light emitted by the light-emitting body 100 more reflected by the first reflector 200 .

Both the first reflector 200 and the second reflector 300 are reflective devices of the light source system, and both can reflect the light emitted by the light-emitting body 100 . The first reflector 200 is at least partially sleeved within the second reflector 300 . The first reflector 200 includes a first end 220 and a second end 230 . The first end 220 is provided with a first light outlet 221 , and the first light outlet 221 is located in the second reflector 300 . The second end 230 may be located inside the second reflector 300 or outside the second reflector 300 .

The second reflector 300 includes a third end 310 and a fourth end 320 . The third end 310 defines a second light outlet 311 . The first reflector 200 has a first reflection surface 210 facing the luminous body 100. In the direction of the optical axis of the luminous body 100, the orthographic projection of the first reflective surface 210 covers the orthographic projection of the illuminant When the position of the second light outlet 311 is observed, the user cannot see the light-emitting body 100 due to the blocking by the first reflecting surface 210 .

The light emitted by the light-emitting body 100 can pass through at least one of the first reflector 200 and the second reflector 300 and then be emitted from the second light outlet 311 , and finally realize the lighting of the lighting fixture. As shown in FIG. 1 , a part of the light emitted by the light-emitting body 100 may pass through the first reflecting surface 210 and the second reflector 300 in sequence and then be projected from the second light outlet 311 . Another part of the light emitted by the light-emitting body 100 can be reflected by the second reflector 300 and then projected from the second light outlet 311 . Specifically, the structures of the first reflector 200 and the second reflector 300 can be designed so that there is no part of the light emitted by the light-emitting body 100 that is directly emitted without being reflected by the first reflector 200 and the second reflector 300 .

The light source system disclosed in the embodiment of the present invention improves the structure of the light source system of 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 makes the light source 100 In the direction of the optical axis, the orthographic projection of the first reflector 200 toward the first reflecting surface 210 of the luminous body 100 covers the orthographic projection of the luminous body 100, and finally the luminous body 100 can be blocked by the first reflector 200. Embodiments of the present invention Under the condition that the light source system of the disclosed lighting fixture can project light normally, the illuminant 100 can be hidden, and finally, it is difficult for the user to see the illuminator 100 through the second light outlet 311, thereby achieving a better anti-glare effect. The purpose is to improve the user experience when the user uses the lighting fixture.

In the embodiment of the present invention, the structure of the first reflector 200 may be various. In an optional solution, in the first direction, the area of the cross section of the first reflector 200 decreases. It should be noted that the first direction here refers to the direction in which the first light outlet 221 extends to the second light outlet 311 , and the cross section of the first reflector 200 is a cross section perpendicular to the first direction. In this case, the outline size of the first reflector 200 is gradually reduced, so that more light can be directly projected onto the second reflector 300 on the basis of ensuring the reflection effect, and finally the second reflector 300 is directly projected from the second light outlet 311 . Such a structure is more conducive to shortening the optical path in the process of emitting part of the light, thereby reducing the energy loss of the light. Of course, the first reflector 200 can also have other structures, as long as it can ensure that the light projected on it can be reflected to the second light outlet 311 and then projected from the second light outlet 311 or can be reflected to the second reflector 300 The second reflector 300 may then be reflected to the second light outlet 311 , and the embodiment of the present invention does not limit the specific shape of the first reflector 200 .

Similarly, the structure of the second reflector 300 can be various. Please refer to FIG. 1 again. In an optional solution, in the first direction, the area of the cross section of the second reflector 300 increases. It should be noted that the cross section of the second reflector 300 refers to the cross section of the second reflector 300 perpendicular to the first direction. The second reflector 300 with such a structure can ensure that more light can be projected onto the second reflector 300 , and finally the second reflector 300 is directly projected from the second light outlet. Such a structure is more conducive to shortening the optical path in the process of emitting part of the light, thereby reducing the energy loss of the light.

In a further technical solution, the light-emitting body 100 may be disposed in the second end 230 of the first reflector 200 , and this structure makes the light-emitting body 100 closer to the second end of the first reflector 200 , thereby making it more convenient for the light-emitting body At the same time, the second end 230 of the first reflector 200 is farther away from the second light outlet 311 , so that the light-emitting body 100 can be shielded more easily. Further, the illuminator 100 may be configured adjacent to the edge of the first reflector 200 such that the first end 220 of the first reflector 200 is closer to the optical axis of the illuminator 100 relative to the illuminator 100, when the first reflection More parts of the reflector 200 can block the light-emitting body 100 , which is more conducive to the blocking of the light-emitting body 100 by the first reflecting surface 210 .

As described above, at least part of the first reflector 200 is sleeved within the second reflector 300 . In an optional solution, the second end 230 of the first reflector 200 may be flush with the fourth end 320 of the second reflector 300 , which ultimately enables the first reflector 200 to fully utilize the interior of the second reflector 300 . space, to avoid the problem that a part of the first reflector 200 protrudes from the second reflector 300 and the light source system occupies a larger space.

In an optional solution, the cross-sectional area of the first end of the first reflector 200 is the first area, the cross-sectional area of the second end of the first reflector 200 is the second area, the first area and the second area are The ratio between them is 0.6 to 0.9. Such a structure can prevent the tapering degree of the first reflector from being too small to affect the light output of the light source system, and at the same time, it can better shield the light-emitting body 100 .

In order to ensure that the light emitted by the light-emitting body 100 can be reliably reflected, in the section parallel to the first direction mentioned above, the connection line between the first light outlet 221 and the second light outlet 311 and the first direction The included angle α is less than or equal to 45°. This arrangement can make the second light outlet 311 converge as far as possible relative to the first light outlet 221, even if the light emitted by the illuminant 100 is not reflected by the first reflector 200, it will be reflected by the second reflector 300, thereby improving the light source system. light effect.

As described above, the first reflector 200 plays the role of reflection, the first reflector 200 may have the first reflection surface 210 facing the light-emitting body 100, and the first reflection surface 210 may be a cone surface, an optional solution , the first reflective surface 210 can be a curved surface, and the first reflective surface 210 can be curved toward the side away from the light-emitting body 100 . This structure can increase the area of the first reflective surface 210 and allow more light to reach The first reflective surface 210 is further reflected by the first reflective surface 210 . At the same time, the first reflecting surface 210 can reflect more light to the second reflector 300, so that the uniform light effect of the entire light source system is better.

In this embodiment of the present invention, the number of the light-emitting body 100 may be one, or at least two. In order to improve the illumination intensity, in an optional solution, the number of the light-emitting bodies 100 may be at least two, and the light-emitting bodies 100 are arranged along the circumferential direction of the first reflector 200, and finally a ring-shaped light-emitting structure can be formed, realizing multiple Directional uniform glow effect.

In a further technical solution, the light source system disclosed in the embodiments of the present invention may further include at least one light distribution member 400 , the light distribution member 400 is covered outside the luminous body 100 , and the light distribution member 400 can reflect the light emitted by the luminous body 100 . For light distribution, the light distribution member 400 may be a uniform light device or a light condensing device, and the embodiment of the present invention does not limit the specific type of the light distribution member 400 .

In an optional solution, the number of the above-mentioned light distribution members 400 may be one, or at least two, and the light distribution member 400 may only cover a part of the illuminants 100, but in order to avoid mutual interference, the light distribution The number of components 400 is equal to the number of light-emitting bodies 100, and each light-distribution component 400 is covered on one light-emitting body 100, that is, each light-distribution component 400 is covered on the outside of each light-emitting body 100. The light-emitting body 100 is separately configured with a light distribution member 400 for its light distribution alone. The light-distribution member 400 is covered outside the light-emitting body 100, so that the optical interference between the light-emitting bodies 100 can be alleviated, and at the same time, each light-emitting body can be improved. The light distribution effect of the body 100 makes the light effect of the entire light source system better.

In a preferred solution, the plurality of light distribution members 400 may be of an integrated structure. During the assembly process, a plurality of light distribution components 400 are assembled as a whole, and no single installation is required, thereby facilitating assembly and improving assembly efficiency.

In other embodiments, the light distribution member 400 can also be a ring-shaped member, and the same light distribution member 400 covers a plurality of light-emitting bodies 100 arranged along the same circumferential direction. In this embodiment, the number of the light distribution members 400 can be reduced, thereby facilitating the Quickly assemble the light source system.

Optionally, the light distribution member 400 may be a lens, specifically a convex lens, a concave lens, or a lens group. The lens has a better light distribution effect and a relatively simple structure. In a further technical solution, the light distribution member 400 may be a plano-convex lens or a cover-shaped lens with an accommodating space. Specifically, the illuminant 100 may be located in the accommodating space. In this case, the light distribution member 400 Not only can it play a role in light distribution, but also can play a role in protecting the light-emitting body 100 .

In the embodiment of the present invention, the fourth end 320 of the second reflector 300 is an open end. Specifically, in the light source system disclosed in the embodiment of the present invention, the port of the fourth end 320 of the second reflector 300 can be blocked There is a circuit board 500 , the light-emitting body 100 can be fixed on the circuit board 500 , and the circuit board 500 provides a mounting position for the light-emitting body 100 . Specifically, the light-emitting body 100 may be electrically connected to the circuit board 500 , and then powered by the circuit board 500 .

In a further technical solution, the circuit board 500 can be fixedly connected with the second reflector 300, and the second reflector 300 can be assembled with the circuit board 500 as the installation base during the assembly process of the entire lighting fixture. At the same time, the circuit board 500 can also block the port of the fourth end 320 of the second reflector 300 , thereby preventing the light emitted by the light-emitting body 100 from leaking from the port of the fourth end 320 of the second reflector 300 .

In a further technical solution, a heat dissipation seat is provided on the side of the circuit board 500 away from the light-emitting body 100 , and the heat dissipation seat can play a role of heat dissipation. The heat sink can be made of a material capable of efficiently dissipating heat, for example, the heat sink can be a stainless steel heat sink or an aluminum heat sink. Alternatively, the heat dissipation base can be designed as a mechanism that can easily dissipate heat. For example, the heat dissipation base includes a plurality of heat dissipation pins or heat dissipation fins distributed in an array.

The heat sink can be directly bonded and fixed with the circuit board 500 through the thermally conductive adhesive layer. In this case, the heat generated by the circuit board 500 and the light-emitting body 100 disposed on it during operation can be quickly transmitted to the heat dissipation through the thermally conductive adhesive layer. Finally, it is transmitted to the entire lighting fixture through the heat dissipation base to achieve the purpose of rapid heat dissipation.

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

The lighting fixture disclosed in the embodiment of the present invention may be a downlight, a spotlight, and the like, and the embodiment of the present invention does not limit the specific type of the lighting fixture.

In an optional solution, the lighting fixture disclosed in the embodiment of the present invention may further include a circuit board 500 and a casing 600 , the illuminant 100 is disposed on the circuit board 500 , and the circuit board 500 is disposed on the bottom wall 630 of the casing 600 , thereby The mounting strength of the circuit board 500 is improved. At this time, the first reflector 200 is located between the side wall 640 of the housing 600 and the light-emitting body 100 ; or, the first reflector 200 is located between the second reflector 300 and the light-emitting body 100 . In contrast, when the first reflector 200 is located between the second reflector 300 and the light-emitting body 100 , the second reflector 300 is more convenient to install, that is, the second reflector 300 can be fixedly connected to the circuit board 500 .

Further, the lighting fixture may further include a mask 700, the housing 600 has an inner cavity 610 and an opening 620, the mask 700 is installed at the opening 620, and the mask 700 and the housing 600 enclose an optical cavity, and the light source system is arranged in the optical cavity, That is, both the first reflector 200 and the second reflector 300 are disposed in the optical cavity, and the orientation of the first light outlet 221 is consistent with the orientation of the opening 620 . The light emitted by the light-emitting body 100 is reflected by the first reflector 200 and the second reflector 300 and then emitted from the mask 700 , and the mask 700 can further improve the uniform light effect of the lighting fixture.

Optionally, the second reflector 300 may be fixed between the mask 700 and the bottom wall 630 of the housing 600 ; or, the second reflector 300 may be fixed between the mask 700 and the circuit board 500 . Both of these two setting methods can better ensure that the light is reflected and then emitted through the mask 700, thereby improving the light efficiency of the lighting fixture.

In order to better realize the driving of the light source system, in addition to the circuit board 500 , the lighting fixture may also include a driver 800 , and the driver 800 is disposed on the circuit board 500 . Optionally, the driver 800 may be disposed on the side of the circuit board 500 facing the first light outlet 221 , or may be disposed on the side of the circuit board 500 away from the first light outlet 221 , which is not limited in this embodiment of the present invention.

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

Claims (18)

1. A light source system of a lighting fixture, comprising a light emitter (100), a first reflector (200) and a second reflector (300), wherein the first reflector (200) is at least partially sleeved in the second reflector (300), the first reflector (200) comprises a first end (220) and a second end (230), the first end (220) is provided with a first light outlet (221), the first light outlet (221) is located in the second reflector (300), the second reflector (300) comprises a third end (310) and a fourth end (320), and the third end (310) is provided with a second light outlet (311);

the luminous body (100) is arranged in the first reflector (200), the first reflector (200) is provided with a first reflecting surface (210) facing the luminous body, and the orthographic projection of the first reflecting surface (210) covers the orthographic projection of the luminous body (100) in the optical axis direction of the luminous body (100);

light rays emitted by the luminous body (100) pass through at least one of the first reflector (200) and the second reflector (300) and then are emitted from the second light outlet (311).

2. The light source system according to claim 1, wherein the direction in which the first light outlet (221) extends toward the second light outlet (311) is a first direction,

in the first direction, the cross-sectional area of the first reflector (200) decreases.

3. A light source system according to claim 2, characterized in that the cross-sectional area of the second reflector (300) increases in the first direction.

4. A light source system according to claim 2, wherein the luminaire (100) is arranged in the second end (230) of the first reflector (200).

5. A light source system according to claim 4, characterized in that the luminaire (100) is arranged adjacent to an edge of the first reflector (200).

6. A light source system according to claim 1, wherein the second end (230) of the first reflector (200) is flush with the fourth end (320) of the second reflector (300).

7. The light source system according to claim 1, wherein the cross-sectional area of the first end (220) of the first reflector (200) is a first area, the cross-sectional area of the second end (230) of the first reflector (200) is a second area, and the ratio between the first area and the second area is 0.6-0.9.

8. The light source system according to claim 1, wherein the direction in which the first light outlet (221) extends toward the second light outlet (311) is a first direction,

in a cross section parallel to the first direction, an included angle between a connecting line between the first light outlet (221) and the second light outlet (311) and the first direction is less than or equal to 45 degrees.

9. The light source system according to claim 1, wherein the number of the luminous bodies (100) is at least two, and each of the luminous bodies (100) is arranged along a circumferential direction of the first reflector (200).

10. A light source system according to claim 9, further comprising at least one light distribution member (400), said light distribution member (400) being housed outside said luminaire (100).

11. The light source system according to claim 10, wherein the number of the light distribution members (400) is at least two, and the number of the light distribution members (400) is equal to the number of the luminous bodies (100), and each of the luminous bodies (100) is covered with one of the light distribution members (400) on the outside; or,

the light distribution member (400) is an annular member, and the same light distribution member (400) covers the plurality of luminous bodies (100) arranged in the same circumferential direction.

12. A light source system according to claim 10, wherein the light distribution member (400) is a lens.

13. A lighting fixture comprising the light source system of any one of claims 1-12.

14. A lighting fixture as recited in claim 13, further comprising a circuit board (500) and a housing (600), wherein said light emitter (100) is disposed on said circuit board (500), wherein said circuit board (500) is disposed on a bottom wall (630) of said housing (600),

the first reflector (200) is located between a side wall (640) of the housing (600) and the luminaire (100); alternatively, the first reflector (200) is located between the second reflector (300) and the luminaire (100).

15. A lighting fixture as recited in claim 14, further comprising a visor (700), wherein the housing (600) has an opening (620), wherein the visor (700) is mounted at the opening (620), and wherein the visor (700) and the housing (600) enclose an optical cavity, and wherein the first reflector (200) and the second reflector (300) are both disposed within the optical cavity.

16. A light fixture as recited in claim 15, wherein said second reflector (300) is secured between said mask (700) and a bottom wall (630) of said housing (600); alternatively, the second reflector (300) is fixed between the cover (700) and the circuit board (500).

17. A lighting fixture as recited in claim 14, further comprising a circuit board (500) and a driver (800), wherein said light emitter (100) is disposed on said circuit board (500), said circuit board (500) is disposed on a bottom wall (630) of said housing (600), and said driver (800) is disposed on said circuit board (500).

18. A lighting fixture as recited in claim 13, wherein said lighting fixture is a downlight or a spot light.

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