Lighting Fixtures

Abstract

The present invention discloses a lighting fixture, comprising a housing (100), a mask (200), a light source module (300) and a driver (400); the housing (100) is connected to the mask (200), and the two form a mounting cavity (500); the light source module (300) and the driver (400) are both arranged in the mounting cavity (500); the housing (100) comprises a cylindrical portion (110) and a face ring (120) connected to one end of the cylindrical portion (110); the mask (200) is a light-transmitting member; the mask (200) comprises a middle portion (210) and an edge portion (220) connected to each other; the middle portion (210) is recessed toward a side where the light source module (300) is located; the edge portion (220) surrounds the middle portion (210), and the edge portion (220) is opposite to the face ring (120). This lighting fixture is not prone to glare problems.

Description

Technical Field

[0001] The present invention relates to the field of lighting technology, and in particular to a lighting fixture. Background Art

[0002] As people's quality of life continues to improve, lighting fixtures such as downlights with good lighting effects have occupied an increasingly important position in people's work and life. In order to meet people's increasing lighting needs, the structure of lighting fixtures needs to be continuously improved.

[0003] Taking downlights as an example, since the illumination range of the light emitted by downlights is relatively concentrated and the brightness is usually relatively high, glare problems are likely to occur when users use downlights. Summary of the invention

[0004] The invention discloses a lighting fixture, which can at least solve one of the problems that the lighting fixture is prone to glare.

[0005] In order to solve the above problems, the present invention adopts the following technical solutions:

[0006] A lighting fixture comprises a housing, a mask, a light source module and a driver, wherein the housing is connected to the mask to form a mounting cavity, and the light source module and the driver are both arranged in the mounting cavity.

[0007] The shell includes a cylindrical portion and a face ring connected to one end of the cylindrical portion, the face mask is a light-transmitting member, and the face mask includes a middle portion and an edge portion connected to each other, the middle portion is recessed toward the side where the light source module is located, the edge portion surrounds the middle portion, and the edge portion is opposite to the face ring.

[0008] The technical solution adopted by the present invention can achieve the following beneficial effects:

[0009] In the lighting fixture disclosed in the embodiment of the present invention, since the mask is a light-transmitting component, the light emitted by the light source module can be directly emitted through the middle part, or it can be transmitted to the edge part through the middle part and then emitted from the edge part. The middle part and the edge part can further change the propagation direction of the light, thereby making the irradiation range of the light wider and preventing glare problems from occurring in the lighting fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] 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 for use in the embodiments or the background technology. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0011] Figure 1 and Figure 2An exploded view of the lighting fixture disclosed in the embodiment of the present invention;

[0012] Figure 3 A cross-sectional view of a lighting fixture disclosed in an embodiment of the present invention;

[0013] Figure 4 for Figure 3 An enlarged schematic diagram of part I in FIG.

[0014] Figure 5 and Figure 6 A cross-sectional view of a mask disclosed in an embodiment of the present invention;

[0015] Figure 7 A top view of a mask disclosed in an embodiment of the present invention;

[0016] Figure 8 It is a schematic diagram of the lighting fixture disclosed in the embodiment of the present invention after being installed on the installation base;

[0017] in, Figure 6 and Figure 8 The arrows in the figure indicate the direction of light propagation.

[0018] Description of reference numerals:

[0019] 100-housing, 110-cylindrical portion, 111-mounting groove, 112-bottom portion, 113-annular side portion, 120-face ring;

[0020] 200-face shield, 210-middle part, 211-light incident surface, 220-edge part, 221-first surface, 222-second surface, 223-outer side surface, 230-light distribution structure, 240-mounting protrusion, 250-limiting part;

[0021] 300-light source module, 310-substrate, 320-light source;

[0022] 400-Driver;

[0023] 500-installation cavity;

[0024] 600- mains connection line;

[0025] 700-card connector;

[0026] 800-elastic parts;

[0027] 900-Installation base. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] The technical solutions disclosed in various embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] like Figures 1 to 8 As shown, the embodiment of the present invention discloses a lighting fixture, and optionally, the lighting fixture may be a downlight or a spotlight. The lighting fixture disclosed in the embodiment of the present invention may specifically include a housing 100 , a mask 200 , a light source module 300 and a driver 400 .

[0031] The housing 100 can be used as a basic component of the lighting fixture, and it can be used as a basis for installing other components of the lighting fixture. One end of the housing 100 can be closed, and the other end can be open. The housing 100 can be connected to the mask 200, so that the mask 200 can block the open end of the housing 100. At this time, the housing 100 and the mask 200 can form an installation cavity 500, and the light source module 300 and the driver 400 are both arranged in the installation cavity 500. The driver 400 is electrically connected to the light source module 300, so as to realize the driving of the light source module 300, and the light source module 300 can emit light, thereby realizing the lighting function of the lighting fixture.

[0032] In addition, the lighting fixture may further include a mains connection line 600, a clamping member 700 and an elastic member 800, one end of the mains connection line 600 is connected to the housing 100 via the clamping member 700, and the mains connection line 600 may be connected to the light source module 300. Two elastic members 800 may generally be provided, and the elastic member 800 may adopt a torsion spring structure, and the lighting fixture may be connected to an installation base 900 (e.g., a roof) via the elastic member 800.

[0033] The housing 100 may include a cylindrical portion 110 and a face ring 120 connected to one end of the cylindrical portion 110. Optionally, the cylindrical portion 110 may include a bottom portion 112 and an annular side portion 113. The bottom portion 112 is disposed at one end of the annular side portion 113 away from the face ring 120, so that one end of the cylindrical portion 110 is closed. The bottom portion 112 and the annular side portion 113 may be disposed separately, and the two may be connected together by snap connection, welding, screw connection, etc. Further, the elastic member 800 described above may be connected to the bottom portion 112; or, the elastic member 800 may also be connected to the annular side portion 113. Specifically, the elastic member 800 is connected to one end of the annular side portion 113 close to the bottom portion 112.

[0034] The mask 200 is a light-transmitting member. Optionally, the mask 200 can be made of a light-guiding material. The mask 200 includes a middle portion 210 and an edge portion 220 connected to each other. The middle portion 210 is recessed toward the side where the light source module 300 is located. The edge portion 220 surrounds the middle portion 210 and is opposite to the face ring 120. Figure 6 Since the mask 200 is a light-transmitting member, the light emitted by the light source module 300 can be directly emitted through the middle portion 210, or can be transmitted through the middle portion 210 to the edge portion 220 and then emitted from the edge portion 220. Therefore, the middle portion 210 and the edge portion 220 can further change the propagation direction of the light, so that the irradiation range of the light is wider, and the glare problem of the lighting fixture is prevented.

[0035] The edge portion 220 has a first surface 221 facing the face ring 120. In a further embodiment, in order to better prevent glare from occurring in the lighting fixture, the first surface 221 is provided with a light distribution structure 230. The light distribution structure 230 can further change the propagation direction of the light, so that the light can be emitted through a larger irradiation range. Optionally, the light distribution structure 230 here can be a structure that is convex in the direction close to the face ring 120, or a structure that is concave in the direction away from the face ring 120. In order to make the structure of the lighting fixture more compact and ensure the light distribution effect of the light distribution structure 230 at the same time, the light distribution structure 230 can have a concave surface, which is concave in the direction away from the face ring 120. Further optionally, the light distribution structure 230 has a pyramidal concave surface, such as a triangular pyramidal concave surface, a quadrangular pyramidal concave surface, etc.; or, the light distribution structure 230 has a prismatic concave surface, such as a triangular prism-shaped concave surface, a quadrangular prism-shaped concave surface, etc.; or, the light distribution structure 230 has a prism-shaped concave surface, such as a triangular prism-shaped concave surface, a quadrangular prism-shaped concave surface, etc. When the light distribution structure 230 adopts these structures, it is easier to process, so the cost of the lighting fixture can be reduced.

[0036] The number of light distribution structures 230 can be one or at least two. To improve the light distribution effect, optionally, the number of light distribution structures 230 is at least two, and each light distribution structure 230 is arranged along a direction surrounding the middle portion 210, thereby achieving light distribution at more positions.

[0037] When the number of the light distribution structures 230 is at least two, each light distribution structure 230 can also be arranged along the radial direction of the edge portion 220, so as to achieve light distribution at more positions. Of course, at least two light distribution structures 230 can be arranged in the direction around the middle portion 210 and in the radial direction of the edge portion 220 at the same time. In this case, the light distribution structures 230 are arranged radially, and the light can be emitted in a dot matrix, thereby further improving the light distribution effect, so that the light emitted by the light source module 300 can be more evenly distributed.

[0038] The edge portion 220 also has a second surface 222 opposite to the aforementioned first surface 221, and the second surface 222 can be a plane. The direction extending from the inner edge of the edge portion 220 to the outer edge of the edge portion 220 can be defined as a first direction. In this first direction, the maximum cross-sectional area of ​​each light distribution structure 230 gradually increases. It should be noted that the cross section here is parallel to the second surface 222. The closer to the outer edge of the edge portion 220, the larger the circumferential dimension of the edge portion 220. At this time, the maximum cross-sectional area of ​​each light distribution structure 230 gradually increases, so that the number of light distribution structures 230 in each circle is not much different, and at the same time, the area ratio occupied by the light distribution structure 230 can be ensured to be basically consistent, so as to make fuller use of the space of the edge portion 220 and maximize the light distribution range of all light distribution structures 230, thereby optimizing the light distribution effect of the light distribution structure 230.

[0039] Of course, in the first direction, the height of each light distribution structure 230 can be gradually increased, and it should be noted that the height here is the dimension in the direction perpendicular to the second surface 222. At this time, the area of ​​the light distribution structure 230 is larger, so that the probability of the light irradiating the light distribution structure 230 when propagating to the outer edge of the edge portion 220 is greater, so that the propagation direction of more light can be changed under the action of the light distribution structure 230, so as to achieve the purpose of improving the light distribution effect.

[0040] The above-mentioned means of gradually increasing the maximum cross-sectional area of ​​the light distribution structure 230 and the means of gradually increasing the height of the light distribution structure 230 may be selected only one or both, and may be provided at the same time, which is not limited in the embodiment of the present invention.

[0041] In the first direction described above, the thickness of the edge portion 220 can be gradually increased. This arrangement can, on the one hand, appropriately increase the structural strength of the edge portion 220, and on the other hand, can make the side of the edge portion 220 facing the face ring 120 gradually rise. When the light is reflected by the side of the edge portion 220, it can be emitted in a direction farther away from the middle portion 210, thereby increasing the irradiation range of the light and further improving the glare problem. At the same time, when the maximum cross-sectional area of ​​each light distribution structure 230 gradually increases in the first direction, or the height of each light distribution structure 230 gradually increases in the first direction, the gradual increase in the thickness of the edge portion 220 can better adapt to the structural changes of each light distribution structure 230, so as to prevent the structural strength of the edge portion 220 from being weakened.

[0042] Furthermore, in the first direction, the thickness of the face ring 120 gradually decreases. After such arrangement, the space jointly occupied by the edge portion 220 and the face ring 120 does not substantially change in the first direction, so that the thickness of the entire lighting fixture at the edge portion 220 is relatively uniform, so as to ensure the aesthetics of the lighting fixture and facilitate the installation of the lighting fixture.

[0043] In an optional embodiment, the edge portion 220 has an outer side surface 223, and the outer side surface 223 is a light emitting surface. Figure 8 Since the outer side surface 223 here is relatively close to the installation base 900, such as a ceiling, the light emitted from the outer side surface 223 can irradiate the installation base 900, thereby further expanding the irradiation range of the lighting fixture, improving the uniformity of the light, better preventing glare problems, and improving the decorative effect of the lighting fixture.

[0044] The middle part 210 has a light incident surface 211 facing the light source module 300, and the light emitted by the light source module 300 can enter the mask 200 through the light incident surface 211. Optionally, the light incident surface 211 here is a silk screen surface, and the silk screen process can reduce the direct light at the light incident surface 211, so that the light enters the mask 200 more evenly and is emitted through the mask 200. After such a setting, the light emitted by the lighting fixture is softer.

[0045] In an optional embodiment, the edge portion 220 has a first surface 221 facing the face ring 120, and a mounting protrusion 240 is provided on one side of the first surface 221 adjacent to the middle portion 210, and the cylindrical portion 110 is provided with a mounting groove 111, and the mounting protrusion 240 cooperates with the mounting groove 111. Here, the contact area between the mounting protrusion 240 and the mounting groove 111 is larger, so that the assembly area of ​​the shell 100 and the mask 200 can be increased, thereby improving the connection strength between the two. Optionally, the mounting protrusion 240 and the mounting groove 111 can be fixed together by snap connection, bonding, etc. In other embodiments, in order to simplify the assembly process and improve the connection strength between the mounting protrusion 240 and the mounting groove 111, the mounting protrusion 240 and the mounting groove 111 can be assembled together by ultrasonic welding.

[0046] The above-mentioned mounting protrusion 240 can be arranged on a part of the first surface 221, that is, the mounting protrusion 240 can be arranged in a block structure. Similarly, the mounting groove 111 can be arranged on a part of the cylindrical portion 110, so as to cooperate with the block-shaped mounting protrusion 240. In other embodiments, in order to further increase the contact area between the mounting protrusion 240 and the mounting groove 111, the mounting protrusion 240 can be arranged in an annular structure, in which case the mounting protrusion 240 surrounds the middle portion 210. Alternatively, the mounting groove 111 can also be arranged in an annular structure, in which case the mounting groove 111 surrounds the middle portion 210. Of course, the mounting protrusion 240 and the mounting groove 111 can also be arranged in an annular structure at the same time.

[0047] Optionally, the installation groove 111 may be a right-angle groove, which is easier to shape.

[0048] As mentioned above, the edge portion 220 has a first surface 221 facing the face ring 120. In order to improve the connection reliability between the shell 100 and the mask 200, a limiting portion 250 can be provided on the side of the first surface 221 away from the middle portion 210, and the face ring 120 is located between the limiting portion 250 and the middle portion 210. The limiting portion 250 here can protrude relative to the first surface 221 to limit the position of the face ring 120, thereby preventing the shell 100 from being separated from the mask 200 due to external forces, thereby achieving the purpose of improving the reliability of the connection between the two. Optionally, the limiting portion 250 can be set on a part of the first surface 221, but in order to further improve the limiting effect, the limiting portion 250 can be set into an annular structure, in which case the limiting portion 250 can surround the middle portion 210, thereby more reliably limiting the relative movement between the shell 100 and the mask 200.

[0049] The dimension of the middle part 210 in a direction perpendicular to the light source module 300 is the height of the middle part 210, and the dimension of the housing 100 in a direction perpendicular to the light source module 300 is the height of the housing 100. It can be understood that the higher the height of the middle part 210, the larger the area of ​​the middle part 210, which is more conducive to changing the propagation direction of the light, but it is also more likely to interfere with the light source module 300. In view of this, the ratio between the height of the middle part 210 and the height of the housing 100 can be set to 0.4 to 0.6, so that the middle part 210 has a larger area and is not easy to interfere with the light source module 300. Further, the ratio between the height of the middle part 210 and the height of the housing 100 can be 0.5, so as to better balance the assembly of the lighting fixture and improve the glare problem.

[0050] Optionally, the light source module 300 includes a substrate 310 and a light source 320, and the light source 320 is arranged on the substrate 310. Optionally, the light source 320 can be a COB light source, and the number of light sources 320 can be one or more. The driver 400 can also be arranged on the substrate 310. Of course, other electronic components can also be arranged on the substrate 310, and the embodiment of the present invention is not limited to this. Further optionally, the substrate 310 is fixed to the bottom 112 of the cylindrical portion 110, and the bottom 112 faces the middle portion 210, and the light source 320 and the driver 400 are arranged on the same side of the substrate 310. After adopting this structure, the substrate 310 can contact the bottom 112 of the cylindrical portion 110 over a large area, and the heat generated when the lighting fixture is working can be transferred to the cylindrical portion 110 and dissipated more quickly through the substrate 310. Therefore, this structure can improve the heat dissipation effect of the lighting fixture.

[0051] In other optional embodiments, the substrate 310 may not contact the bottom 112 of the cylindrical portion 110, and a receiving space may be reserved between the substrate 310 and the bottom 112. Structures such as the driver 400 may be arranged in the receiving space, so that these components do not affect the arrangement of the light source 320 on the substrate 310, and do not block the light emitted by the light source 320 from continuing to propagate, thereby improving the luminous effect of the lighting fixture.

[0052] The shape of the middle part 210 can be flexibly selected. For example, the middle part 210 can adopt a conical structure, a hemispherical structure, etc. Relatively speaking, when the middle part 210 is a hemispherical structure, the area of ​​the middle part 210 is larger and its surface is smoother, so that the propagation direction of the light can be better changed. At the same time, the middle part 210 is easier to shape.

[0053] The mask 200 can be a split structural component or an integrated structural component. When the mask 200 is an integrated structural component, the structural strength of the mask 200 is higher, and at the same time, there is no seam in the mask 200, which is more conducive to changing the propagation direction of light. Optionally, the material of the mask 200 can be PC (Polycarbonate) or PMMA (Polymethylmethacrylate) or PP (Polypropylene), and of course it can also be other materials. Of course, the mask 200 can also be made of nanomaterials with better light-guiding effects, and uniform light particles can be doped inside it so that light can be emitted more evenly through the mask 200.

[0054] The above embodiments of the present invention focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0055] The above are only embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A lighting fixture, characterized in that: The invention comprises a housing (100), a mask (200), a light source module (300) and a driver (400), wherein the housing (100) is connected to the mask (200), and the two form a mounting cavity (500), the light source module (300) and the driver (400) are both arranged in the mounting cavity (500), and the driver (400) is electrically connected to the light source module (300); The housing (100) comprises a cylindrical portion (110) and a face ring (120) connected to one end of the cylindrical portion (110); the face mask (200) is a light-transmitting member; the face mask (200) comprises a middle portion (210) and an edge portion (220) connected to each other; the middle portion (210) is recessed toward a side where the light source module (300) is located; the edge portion (220) surrounds the middle portion (210), and the edge portion (220) is opposite to the face ring (120); The edge portion (220) has a first surface (221) facing the face ring (120), and the first surface (221) is provided with a light distribution structure (230); The number of the light distribution structures (230) is at least two; The edge portion (220) has a second surface (222) opposite to the first surface (221), and a direction extending from the inner edge of the edge portion (220) to the outer edge of the edge portion (220) is a first direction. In the first direction, the maximum cross-sectional area of ​​each of the light distribution structures (230) gradually increases; and / or, in the first direction, the height of each of the light distribution structures (230) gradually increases, The cross section is parallel to the second surface (222), and the height is a dimension in a direction perpendicular to the second surface (222).

2. The lighting fixture according to claim 1, characterized in that: The light distribution structure (230) has a pyramid-shaped concave surface, a prism-shaped concave surface, or a prism-shaped concave surface.

3. The lighting fixture according to claim 1, characterized in that: The light distribution structures (230) are arranged in a direction surrounding the middle portion (210).

4. The lighting fixture according to claim 1, characterized in that: Each of the light distribution structures (230) is arranged along the radial direction of the edge portion (220).

5. The lighting fixture according to claim 1, characterized in that: In the first direction, the thickness of the edge portion (220) gradually increases.

6. The lighting fixture according to claim 5, characterized in that: In the first direction, the thickness of the face ring (120) gradually decreases.

7. The lighting fixture according to claim 1, characterized in that: The edge portion (220) has an outer side surface (223), the outer side surface (223) is a light emitting surface, and the orientation of the outer side surface (223) is different from the orientation of the second surface (222).

8. The lighting fixture according to claim 1, characterized in that: The middle portion (210) has a light incident surface (211) facing the light source module (300), and the light incident surface (211) is a silk-screen surface.

9. The lighting fixture according to claim 1, characterized in that: A mounting protrusion (240) is provided on one side of the first surface (221) adjacent to the middle portion (210), and a mounting groove (111) is provided on the cylindrical portion (110), and the mounting protrusion (240) matches the mounting groove (111).

10. The lighting fixture according to claim 9, characterized in that: The mounting protrusion (240) is an annular structure, and the mounting protrusion (240) surrounds the middle part (210); and / or the mounting groove (111) is an annular structure, and the mounting groove (111) surrounds the middle part (210).

11. The lighting fixture according to claim 1, characterized in that: A limiting portion (250) is provided on a side of the first surface (221) away from the middle portion (210), and the surface ring (120) is located between the limiting portion (250) and the middle portion (210).

12. The lighting fixture according to claim 1, characterized in that: In a direction perpendicular to the light source module (300), the ratio between the height of the middle portion (210) and the height of the outer shell (100) is 0.4-0.

6.

13. The lighting fixture according to claim 1, characterized in that: The light source module (300) comprises a substrate (310) and a light source (320); the substrate (310) is fixed to the bottom (112) of the cylindrical portion (110); and the light source (320) and the driver (400) are arranged on the same side of the substrate (310).

14. The lighting fixture according to claim 1, characterized in that: The middle portion (210) is a hemispherical structure.

15. The lighting fixture according to claim 1, characterized in that: The mask (200) is an integrated structural component.

16. The lighting fixture according to claim 1, characterized in that: The lighting fixture is a downlight or a spotlight.

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