Light source system and lighting fixture

Abstract

The application provides a light source system and a lighting lamp. The light source system comprises a light source assembly and a reflector. The reflector is provided with a reflection cavity. The reflection cavity comprises oppositely arranged cavity openings, a cavity bottom and a cavity wall connecting the cavity openings and the cavity bottom. The cavity wall comprises a first wall connected with the cavity bottom and a second wall extending from the first wall towards the cavity bottom. A groove with an opening direction towards the cavity bottom is formed between the second wall and the first wall. The light source assembly is accommodated and fixed in the groove. The reflector further comprises a protruding part protruding from the cavity bottom towards the cavity opening. The protruding part is provided with a third wall. The third wall is connected with the first wall and forms a reflection surface in the reflection cavity together with the first wall. The light emitted by the light source assembly is emitted from the groove, reflected by the reflection surface and then emitted from the cavity opening to the outside of the reflector. Compared with the prior art, the opening direction of the groove in the reflection cavity is arranged to be towards the cavity bottom, so that the light source assembly is effectively shielded and the glare problem caused by the light source system is completely solved.

Description

TECHNICAL FIELD

[0001] The present application relates to a light source system and a lighting lamp, belonging to the technical field of lighting lamps. BACKGROUND

[0002] With the development of society, lighting lamps are applied in various fields, such as home, business and industry, and the types of lighting lamps on the market are also increasing. At the same time, people's performance requirements for lighting lamps are also getting higher and higher.

[0003] At present, the existing optical scheme lighting lamp has light directly irradiated from the light-emitting body. If this part of light enters the human eye, it will cause glare problem, and thus the user will feel uncomfortable. Therefore, the existing lighting lamp has the problem of poor user experience.

[0004] Therefore, it is necessary to provide a new light source system and a lighting lamp to solve the above problems. SUMMARY

[0005] The purpose of the present application is to provide a light source system that can achieve the effect of invisible light source at any angle, thereby completely solving the problem of glare.

[0006] To achieve the above purpose, the present application provides a light source system, which comprises a light source assembly and a reflector; a reflection cavity is formed in the reflector, the reflection cavity comprises oppositely arranged cavity openings, a cavity bottom and a cavity wall connecting the cavity openings and the cavity bottom, the cavity wall comprises a first wall connected with the cavity bottom and a second wall extending from the first wall towards the cavity bottom, a groove with an opening direction towards the cavity bottom is formed between the second wall and the first wall, and the light source assembly is accommodated and fixed in the groove; the reflector further comprises a protruding portion protruding from the cavity bottom towards the cavity opening, the protruding portion is provided with a third wall, the third wall is connected with the first wall and together forms a reflection surface located in the reflection cavity, and the light emitted by the light source assembly is emitted from the groove and reflected by the reflection surface, and then emitted from the cavity opening to the outside of the reflector.

[0007] As a further improvement of the present application, the protruding portion is located at the middle position of the cavity bottom and is arranged in a sharp cone shape, and the top end of the protruding portion is located below the cavity opening.

[0008] As a further improvement of the present application, the reflection cavity and the protruding portion are both arranged symmetrically with respect to the symmetry axis L, the first wall is curved towards the direction away from the symmetry axis L, the third wall is curved towards the direction close to the symmetry axis L, and a sharp end is formed at the top end of the protruding portion.

[0009] As a further improvement of the present application, the protruding height of the protruding part accounts for 40%-50% of the total height of the reflector, so that all the light rays in the reflecting cavity are reflected out of the reflecting cavity.

[0010] As a further improvement of the present application, the second wall is curved towards the direction close to the symmetry axis L, and the orthographic projection of the first wall covers the orthographic projection of the second wall in the extension direction of the symmetry axis.

[0011] As a further improvement of the present application, the curvature range of the first wall is 0.07-0.08, so that the light rays emitted by the light source assembly can be emitted onto the third wall; the height at which the maximum width position of the first wall is located is lower than the height at which the free end of the second wall is located, and higher than the height at which the tip end is located.

[0012] As a further improvement of the present application, the reflector is cylindrically arranged, and further comprises an outer side wall surrounding the first wall, and a top wall and a bottom wall connected with the outer side wall, and the reflecting cavity is recessed from the top wall towards the bottom wall.

[0013] As a further improvement of the present application, the first wall, the second wall and the third wall are symmetrically arranged with the symmetry axis L as the center, the first wall surrounds the second wall, the second wall forms the cavity opening, the cavity opening is located below the top wall, the groove is arranged around the cavity opening, and the orthographic projection of the cavity opening covers the orthographic projection of the cavity bottom.

[0014] As a further improvement of the present application, the height at which the free end of the second wall is located accounts for 10%-30% of the total height of the reflector, so that the length of the second wall extending towards the cavity bottom can shield the light source assembly, and all the light rays emitted by the light source assembly can be emitted out of the reflecting cavity.

[0015] As a further improvement of the present application, the reflector further comprises a fourth wall, the fourth wall is located on the cavity bottom and connected with the third wall and the first wall, and the fourth wall surrounds the third wall.

[0016] As a further improvement of the present application, the fourth wall extends obliquely from the bottom end of the first wall towards the bottom end of the third wall, and the horizontal plane at which the bottom end of the third wall is located is above the horizontal plane at which the bottom end of the first wall is located, so that the fourth wall has an upward oblique tendency.

[0017] As a further improvement of the present application, the light source assembly comprises a light source plate and lamp beads electrically connected with the light source plate and fixed on the light source plate, the light source plate is fixed on the inner side wall of the groove, and the lamp beads are uniformly distributed in the groove.

[0018] The present application also aims to provide a lighting lamp to better apply the above light source system.

[0019] To achieve the above object, the present application provides a lighting lamp, which comprises the above light source system.

[0020] The present application has the following advantages: the light source system of the present application forms a groove for containing and fixing the light source assembly by special design of the reflection cavity in the reflector, and the opening direction of the groove is towards the cavity bottom of the reflection cavity, so that the light emitted by the light source assembly is first reflected in the reflection cavity and then emitted from the cavity opening, effectively shielding the light source assembly and completely solving the problem of glare caused by the light source system. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic view of the light source system according to the preferred embodiment of the present application.

[0022] Figure 2 is a structural schematic view of the reflector in Figure 1

[0023] Figure 3 is a sectional view of Figure 2

[0024] Figure 4 is a schematic view of the light propagation of the light source system according to the preferred embodiment of the present application.

[0025] Figure 5 is a schematic view of the light propagation when the light source assembly in Figure 4

[0026] Figure 6 is a schematic view of the light propagation when the light source assembly is far away from the protruding part in Figure 4 DETAILED DESCRIPTION

[0027] To make the object, technical scheme and advantages of the present application clearer, the present application is described in detail below in combination with the drawings and specific embodiments.

[0028] ​​​​The present application discloses a light source system 100, which is applied to a lighting lamp, such as a ceiling down lamp, a bedside lamp and other lighting lamps which can directly irradiate to human eyes. The lighting lamp comprises the light source system 100, a shell and a cover, the shell has an inner cavity and an opening, the cover is installed at the opening and cooperates with the shell to form the inner cavity, the light source system 100 is accommodated in the inner cavity, and the light emitted by the light source system 100 is finally emitted from the cover, which has the effect of uniform and soft light. Of course, the shell and the cover of the lighting lamp can also be fixedly connected in other ways, as long as the light emitted by the light source assembly 20 can be emitted to the outside of the lighting lamp, which is not limited here.

[0029] Since the light source system 100 of the present application can be applied to a down lamp, a spotlight, a bedside lamp and other lighting lamps, the specific structure of the lighting lamp is not described here, and the structure of the light source system 100 and its working principle will be described in detail in the following description.

[0030] As shown in Figures 1 to 3 The light source system 100 comprises a light source assembly 20 and a reflector 10. In the present application, the reflector 10 is preferably a cylindrical reflector 10, of course, according to actual needs, the shape of the reflector 10 can also be other shapes, which is not limited here.

[0031] The reflector 10 forms a reflection cavity 11 inside, which comprises oppositely arranged cavity openings 110, cavity bottoms 111 and cavity walls 112 connected with the cavity bottoms 111. The cavity walls 112 extend between the cavity openings 110 and the cavity bottoms 111, and comprise first walls 113 connected with the cavity bottoms 111 and second walls 114 extending from the first walls 113 towards the cavity bottoms 111, one end of the second walls 114 is connected with the first walls 113, and the other end extends towards the cavity bottoms 111 in a circular arc shape, so as to form a groove 12 between the second walls 114 and the first walls 113, the opening direction of the groove 12 is towards the cavity bottoms 111, and the light source assembly 20 is accommodated and fixed in the groove 12.

[0032] Preferably, the first wall 113 extends outwardly from the cavity bottom 111 towards the cavity opening 110, i.e. the first wall 113 is in the shape of an outwardly convex arc extending between the cavity opening 110 and the cavity bottom 111; define the first end a of the first wall 113 connected to the cavity bottom 111, the second end b of the first wall 113 connected to the second wall 114, the third end c of the second wall 114 connected to the first wall 113, and the fourth end d of the second wall 114 as the free end, then the second end b and the third end c coincide with each other, and in the height direction of the reflector 10, the first end a is at the bottom end, the second end b and the third end c are at the highest points, and the fourth end d is slightly lower than the second end b and the third end c; at the same time, the projection of the fourth end d on the horizontal plane is between the projection of the first end a on the horizontal plane and the projection of the second end b and the third end c on the horizontal plane, that is, the orthographic projection of the first wall 113 on the horizontal plane covers the orthographic projection of the second wall 114 on the horizontal plane. In this way, the light emitted by the light source assembly 20 accommodated in the groove 12 will not be blocked, and the light source assembly 20 cannot be directly seen by the human eye.

[0033] As a preferred embodiment, the height at which the free end (i.e. the fourth end d) of the second wall 114 is located accounts for 10%-30% of the total height of the reflector 10, so that the length of the second wall 114 extending towards the cavity bottom 111 can block the light source assembly 20 and make all the light emitted by the light source assembly 20 exit from the reflection cavity 11, without causing blocking of the light and without shining into the human eye to cause glare problems.

[0034] The reflector 10 further comprises a protruding portion 13 provided on the cavity bottom 111, and the protruding portion 13 protrudes in the direction towards the cavity opening 110, and the side wall of the protruding portion 13 is defined as the third wall 131, which is connected to the first wall 113 and forms a reflecting surface in the reflection cavity 11 together with the first wall 113. The light emitted by the light source assembly 20 exits from the groove 12 first, is reflected by the reflecting surface, and then exits from the cavity opening 110 to the outside of the reflector 10. In this way, the fixing area of the light source assembly 20, i.e. the opening direction of the groove 12, is opposite to the opening direction of the cavity opening 110, so that the light source assembly 20 is physically blocked at multiple angles, i.e. the light source assembly 20 cannot be seen from the side of the light source system 100, and the glare problem no longer exists.

[0035] Specifically, the reflection cavity 11 and the protruding portion 13 are both centrally symmetric with respect to the symmetry axis L, so the first wall 113, the second wall 114 and the third wall 131 are also centrally symmetric with respect to the symmetry axis L. The first wall 113 is arranged around the second wall 114, the second wall 114 surrounds the cavity opening 110 which is below the top wall 15 of the reflector 10, and the groove 12 is arranged around the cavity opening 110. Preferably, the orthographic projection of the cavity opening 110 covers the orthographic projection of the cavity bottom 111, so as to ensure that the light emitted by the light source assembly 20 can all be emitted from the cavity opening 110 to the outside of the reflector 10.

[0036] The reflector 10 further comprises an outer side wall 14 arranged around the first wall 113, and a top wall 15 and a bottom wall 16 connected with the outer side wall 14. The middle position of the top wall 15 is recessed towards the bottom wall 16 to form the reflection cavity 11, and the middle position of the bottom wall 16 is recessed towards the top wall 15 to form the protruding portion 13. Of course, the protruding portion 13 can also be directly arranged on the cavity bottom 111, that is, the part of the bottom wall 16 corresponding to the protruding portion 13 does not need to be recessed inward. The present application does not make any limitation on the formation of the protruding portion 13 in the reflection cavity 11, as long as the protruding portion 13 can be formed on the cavity bottom 111.

[0037] In combination with Figure 4 As shown, further, the protruding portion 13 is arranged at the middle position of the cavity bottom 111 and in a sharp taper shape, and the top end of the protruding portion 13 is below the cavity opening 110. In this embodiment, the protruding height of the protruding portion 13 accounts for 40%-50% of the total height of the reflector 10, so that the light in the reflection cavity 11 can all be reflected to the outside of the reflection cavity 11. Preferably, when the height of the protruding portion 13 in the vertical direction is equal to half the distance between the cavity opening 110 and the cavity bottom 111 (i.e., the protruding height of the protruding portion 13 accounts for 50% of the total height of the reflector 10), the light extraction rate of the light source system 100 reaches the best; that is, when the top end of the protruding portion 13 extends to the middle position of the reflection cavity 11, the light extraction effect of the light source system 100 is the best.

[0038] The first wall 113 is curved towards the direction away from the symmetry axis L, and the third wall 131 is curved towards the direction close to the symmetry axis L and forms a tip 132 at the top end of the protruding portion 13. In this way, after the light emitted by the light source assembly 20 is emitted from the groove 12 at the top position of the reflection cavity 11, part of the light is irradiated onto the first wall 113, is reflected by the first wall 113 to the third wall 131, and is then reflected by the third wall 131 to be emitted from the cavity opening 110 of the reflection cavity 11 to the outside of the reflector 10; the other part of the light is directly irradiated onto the third wall 131, is directly reflected by the third wall 131, and is then emitted from the cavity opening 110 of the reflection cavity 11 to the outside of the reflector 10.

[0039] The setting of the tip 132 also increases the emission angle of the entire light source system 100. Of course, the protrusion 13 can also be set in other shapes, as long as it can satisfy the cooperation between the third wall 131 and the first wall 113 so that the light emitted by the light source assembly 20 is reflected by the reflective surface (i.e., the first wall 113 and the third wall 131) and then emitted from the cavity 110 to the outside of the reflector 10. There are no too many restrictions here.

[0040] Furthermore, the reflector 10 also includes a fourth wall 115, which is formed on the cavity bottom 111 and connected to the third wall 131 and the first wall 113, and the fourth wall 115 is arranged around the third wall 131. Preferably, the fourth wall 115 extends obliquely from the bottom end of the first wall 113 toward the bottom end of the third wall 131, and the horizontal plane where the bottom end of the third wall 131 is located is above the horizontal plane where the bottom end of the first wall 113 is located. In this way, the fourth wall 115 has an upward tilting tendency, which further increases the light emission effect.

[0041] Specifically, the protrusion 13 also includes a bottom 133 corresponding to the tip 132, which is connected to the fourth wall 115. The third wall 131 is formed between the tip 132 and the bottom 133. Some of the light emitted by the light source assembly 20 is likely to directly illuminate the fourth wall 115. Part of this light will exit directly from the cavity opening 110 after passing through the fourth wall 115, while another part will pass through the fourth wall 115 again and illuminate the tip 132 of the third wall 131, and finally exit from the tip 132 to the cavity opening 110. In other words, the fourth wall 115 reduces the path of some light propagation and the energy loss caused by light reflection. It also makes the light near the axis of symmetry L softer and the emitted light near the cavity opening 110 more comfortable.

[0042] Preferably, in this embodiment, the curvature of the first wall 113 ranges from 0.07 to 0.08. The height of the position where the width of the first wall 113 is at its maximum (i.e., the middle position) is lower than the height of the free end (i.e., the fourth end d) of the second wall 114, but higher than or equal to the height of the tip 132, so that the light emitted by the light source assembly 20 can reach the third wall 131. Of course, the light source system 100 of the present invention can also be designed with different beam angles (i.e., emission angles) according to different site requirements. Specifically, the emission angle can be changed by adjusting the position of the first wall 113 and / or adjusting the protrusion 13 at the middle position, or by changing the position of the light source assembly 20, or by adjusting the tilt slope of the fourth wall 115.

[0043] Through repeated adjustment experiments, it was found that when the inclination slope of the fourth wall 115 increases, the beam angle increases, and vice versa. If the vertical height of the protrusion 13, the curvature of the third wall 131, and the position of the light source assembly 20 remain constant, the beam angle increases when the first wall 113 is closer to the protrusion 13, resulting in a more concentrated light distribution at the cavity opening 110. Conversely, when the first wall 113 moves away from the protrusion 13, the beam angle also increases, but the light distribution at the cavity opening 110 becomes more uniform. If the position of the first wall 113, the position of the light source assembly 20, and the vertical height of the protrusion 13 remain constant, the beam angle increases when the protrusion 13 becomes thinner, i.e., when the third wall 131 gradually approaches the axis of symmetry L, and decreases otherwise.

[0044] Combination Figure 4 , Figure 5 as well as Figure 6 As shown, if the position of the first wall 113 remains unchanged, and the height and current thickness of the protrusion 13 remain unchanged, the beam angle increases when the light source assembly 20 moves away from or near the protrusion 13. The difference is that when it moves away from the protrusion 13, the light distribution at the cavity opening 110 is more uniform and the light is output in opposite directions, as shown in the figure. Figure 5 When approaching the protrusion 13, the light distribution at the cavity opening 110 is more concentrated and dispersed, and output in the same direction, specifically as follows: Figure 6 From the cross-sectional view of the reflecting cavity 11, the light source assembly 20 is symmetrical about the axis of symmetry L. The above-mentioned opposite output means that if the light source assembly 20 is located on the left side of the axis of symmetry L, then the light emitted by it will exit from the right side of the axis of symmetry L. The same-direction output means that if the light source assembly 20 is located on the left side of the axis of symmetry L, then the light emitted by it will also exit from the left side of the axis of symmetry L.

[0045] Of course, the beam angle of the reflector 10 can also be changed in other ways, such as by adjusting the vertical height of the protrusion 13 at the middle position of the cavity bottom 111. As long as the beam angle required in the actual situation can be achieved, there are no excessive restrictions.

[0046] Furthermore, the second wall 114 bends towards the direction close to the axis of symmetry L. This arrangement not only increases the receiving space of the groove 12 but also enhances the overall aesthetics of the light source system 100. Specifically, the second wall 114 bends towards the direction close to the axis of symmetry L, with the bending direction of the second wall 114 opposite to that of the first wall 113. This results in a larger space in the groove 12, which is roughly bowl-shaped and surrounds the cavity opening 110. With the increased receiving space of the groove 12, the fixing position of the light source assembly 20 becomes more versatile. Thus, by changing the position of the light source assembly 20, a better emitted light effect can be achieved.

[0047] The reflector 10 of the present application can be a one-piece reflector 10, or can be assembled by multiple identical structures, for example, can be assembled by three three-equal structures, so as to facilitate the installation of the light source assembly 20.

[0048] The light source assembly 20 comprises a light source plate and lamp beads electrically connected to the light source plate and fixed on the light source plate, the light source plate is fixed on the inner side wall of the groove 12, and the lamp beads are uniformly distributed in the groove 12. The light source assembly 20 further comprises a plurality of electric wires, after the light source assembly 20 is installed, the electric wires can be arranged on the outer surface of the reflector 10, because the light emitted by the light source assembly 20 is directly emitted from the reflection cavity 11, so the electric wires located on the outer surface of the reflector 10 will not block the light. Specifically, a plurality of wire holes for leading out the electric wires can be formed on the inner side wall of the groove 12, after the electric wires are led out from the wire holes, the electric wires are connected to other structures of the lighting lamp.

[0049] In summary, the light source system 100 of the present application specially designs the reflection cavity 11 in the reflector 10 to form the groove 12 for accommodating and fixing the light source assembly 20, and the opening direction of the groove 12 is towards the cavity bottom 111 of the reflection cavity 11, so that the light emitted by the light source assembly 20 is first reflected in the reflection cavity 11 after being emitted from the groove 12, and then is emitted from the cavity opening 110, effectively shielding the light source assembly 20, and completely solving the problem of glare generated by the light source system 100.

[0050] The above embodiments are only used to illustrate the technical solutions of the present application but not limit, although the present application is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A light source system (100), characterized in that: The light source system (100) includes a light source assembly (20) and a reflector (10); a reflective cavity (11) is formed within the reflector (10), the reflective cavity (11) includes an opening (110) and a bottom (111) disposed opposite to each other, and a cavity wall (112) connecting the opening (110) and the bottom (111). The cavity wall (112) includes a first wall (113) connected to the bottom (111) and a second wall (114) extending from the first wall (113) toward the bottom (111). An opening is formed between the second wall (114) and the first wall (113) with the opening direction facing the bottom (111). The cavity bottom (111) has a groove (12), and the light source assembly (20) is housed and fixed in the groove (12). The reflector (10) also includes a protrusion (13) extending from the cavity bottom (111) toward the cavity opening (110). The protrusion (13) is provided with a third wall (131). The third wall (131) is connected to the first wall (113) and together forms a reflective surface located in the reflective cavity (11). The light emitted by the light source assembly (20) exits from the groove (12) and is reflected by the reflective surface before exiting from the cavity opening (110) to the outside of the reflector (10). The height of the maximum width of the first wall (113) is lower than the height of the free end of the second wall (114) and higher than or equal to the height of the top of the protrusion (13). The protrusion height of the protrusion (13) accounts for 40%-50% of the total height of the reflector (10), so that all the light in the reflective cavity (11) is reflected to the outside of the reflective cavity (11).

2. The light source system (100) according to claim 1, characterized in that: The protrusion (13) is located in the middle of the cavity bottom (111) and is set in a pointed cone shape. The top of the protrusion (13) is located below the cavity opening (110).

3. The light source system (100) according to claim 2, characterized in that: The reflective cavity (11) and the protrusion (13) are both arranged symmetrically about the axis of symmetry (L). The first wall (113) is bent in a direction away from the axis of symmetry (L), and the third wall (131) is bent in a direction close to the axis of symmetry (L), and a tip (132) is formed at the top of the protrusion (13).

4. The light source system (100) according to claim 3, characterized in that: The second wall (114) bends toward the axis of symmetry (L), and in the direction of extension of the axis of symmetry (L), the orthographic projection of the first wall (113) covers the orthographic projection of the second wall (114).

5. The light source system (100) according to claim 4, characterized in that: The curvature of the first wall (113) is in the range of 0.07 to 0.08, so that the light emitted by the light source assembly (20) can be projected onto the third wall (131); the height of the position where the width of the first wall (113) is at its maximum is higher than or equal to the height of the tip (132).

6. The light source system (100) according to claim 3, characterized in that: The reflector (10) is cylindrical and includes an outer wall (14) surrounding the first wall (113), and a top wall (15) and a bottom wall (16) connected to the outer wall (14). The reflective cavity (11) is recessed from the top wall (15) toward the bottom wall (16).

7. The light source system (100) according to claim 6, characterized in that: The first wall (113), the second wall (114) and the third wall (131) are all symmetrically arranged about the axis of symmetry (L). The first wall (113) is arranged around the second wall (114), and the second wall (114) surrounds to form the cavity (110). The cavity (110) is located below the top wall (15). The groove (12) is arranged around the cavity (110). The orthographic projection of the cavity (110) covers the orthographic projection of the cavity bottom (111).

8. The light source system (100) according to claim 1, characterized in that: The height of the free end of the second wall (114) is 10%-30% of the total height of the reflector (10), so that the length of the second wall (114) extending toward the bottom of the cavity (111) can block the light source assembly (20) and allow all the light emitted by the light source assembly (20) to exit from the reflective cavity (11).

9. The light source system (100) according to claim 1, characterized in that: The reflector (10) further includes a fourth wall (115), which is located on the bottom of the cavity (111) and connected to the third wall (131) and the first wall (113), and the fourth wall (115) is arranged around the third wall (131).

10. The light source system (100) according to claim 9, characterized in that: The fourth wall (115) extends obliquely from the bottom end of the first wall (113) toward the bottom end of the third wall (131), and the horizontal plane where the bottom end of the third wall (131) is located is above the horizontal plane where the bottom end of the first wall (113) is located, so that the fourth wall (115) has an upward tendency.

11. The light source system (100) according to claim 1, characterized in that: The light source assembly (20) includes a light source plate and lamp beads electrically connected to and fixed on the light source plate. The light source plate is fixed on the inner sidewall of the groove (12), and the lamp beads are evenly distributed in the groove (12).

12. A lighting fixture, characterized in that: The lighting fixture includes the light source system (100) as described in any one of claims 1-11.

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