A lighting fixture

Abstract

The application belongs to the technical field of lighting, and relates to a lighting lamp, which comprises a radiator with a concave cavity, a light source assembly arranged on the bottom of the concave cavity, and an optical assembly fixed in the concave cavity in a detachable manner; the optical assembly comprises a reflecting cup with a first end facing the light source assembly and a second end opposite to the first end, a lens located at the second end of the reflecting cup, and an anti-dazzle cover connected to the second end of the reflecting cup and keeping the lens between the anti-dazzle cover and the reflecting cup. The technical scheme provided by the application can simplify the operation and improve the replacement efficiency.

Description

Technical Field

[0001] This application relates to the field of lighting technology, and more specifically, to a lighting fixture. Background Technology

[0002] Existing lighting fixtures mainly include light source components, heat sinks, lens components, and anti-glare covers, among which the lens components and anti-glare covers constitute optical components.

[0003] The assembly method for the lamp is as follows: first, the light source assembly is fixed inside the heat sink with screws; then, the lens assembly is fixed to the light source assembly; finally, the anti-glare cover is fixed into the heat sink's clip slot using the clips on the back of the anti-glare cover, thus completing the lamp assembly. Because the lens assembly and the light source assembly are close together, the substrate size and chip height are limited, making it unsuitable for linear LED lamp boards. Furthermore, when replacing optical components, the anti-glare cover must be removed first, then the lens assembly removed, and then the new components installed sequentially. The lens assembly mounting holes also need to be pre-positioned during installation. Therefore, the operation is cumbersome, time-consuming, and labor-intensive, and the mounting clips are easily damaged during disassembly and assembly, affecting secondary use. Utility Model Content

[0004] The purpose of this utility model is to provide a lighting fixture to solve the technical problems of cumbersome component replacement and inconvenient maintenance in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a lighting fixture is provided, comprising: a heat sink having a concave cavity, a light source assembly disposed on the bottom of the concave cavity, and an optical assembly detachably fixed in the concave cavity; the optical assembly comprises: a reflector having a first end facing the light source assembly and a second end opposite to the first end; a lens connected to the second end; and an anti-glare shield connected to the second end of the reflector, and holding the lens between the anti-glare shield and the reflector.

[0006] In some embodiments, an engaging structure is provided between the anti-glare shield and the reflector cup; the engaging structure includes a plurality of buckles spaced apart along the circumference of the reflector cup and a plurality of engaging portions provided on the anti-glare shield and corresponding to the plurality of buckles respectively, and the engaging portions are provided with engaging grooves for engaging with the buckles.

[0007] In some embodiments, a clearance groove is formed on the second end sidewall of the reflector, and the buckle is located inside the clearance groove.

[0008] In some embodiments, a mounting groove is formed on the end face of the second end of the reflector cup for mounting a lens. The anti-glare cover is connected and fixed to the reflector cup and presses the edge of the lens onto the bottom surface of the mounting groove.

[0009] In some embodiments, a connection structure is provided between the anti-glare shield and the heat sink, which is used to fix the anti-glare shield to the heat sink when the anti-glare shield rotates in a first direction, and to separate the anti-glare shield from the heat sink when it rotates in the opposite direction to the first direction.

[0010] In some embodiments, the connection structure includes a plurality of protrusions spaced circumferentially on the sidewall of the cavity along the heat sink, and a locking block disposed on the anti-glare shield and corresponding to the plurality of protrusions respectively, the locking block having a U-shaped groove for the protrusions to slide in and out.

[0011] In some embodiments, the U-shaped groove extends spirally from one end of the locking block to the other end.

[0012] In some embodiments, a positioning groove is formed on the heat sink to abut against the anti-glare shield and restrict the movement of the anti-glare shield. The positioning groove is disposed around the cavity and communicates with the cavity.

[0013] In some embodiments, the light source assembly includes a substrate and lamp beads disposed on the substrate, the substrate being fixed to the bottom surface of the cavity.

[0014] In some embodiments, the reflector cup is disposed outside the lamp bead, and the reflector cup is spaced apart from the substrate.

[0015] Compared with the prior art, the lighting fixture provided by this utility model includes a heat sink, a light source assembly and an optical assembly. The optical assembly is assembled by sequentially connecting a reflector, a lens and an anti-glare cover. When replacing components, the optical assembly can be removed as a whole and replaced with a new optical assembly, without having to disassemble and replace the reflector, lens and anti-glare cover separately. This simplifies the operation and improves the replacement efficiency. Attached Figure Description

[0016] To more clearly illustrate the solution of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional schematic diagram of the lighting fixture provided in an embodiment of this utility model;

[0018] Figure 2 This is a cross-sectional schematic diagram of the lighting fixture provided in an embodiment of this utility model;

[0019] Figure 3 This is an exploded view of the optical component provided in an embodiment of the present invention;

[0020] Figure 4 This is an exploded view of the lighting fixture provided in an embodiment of the present utility model.

[0021] Figure label:

[0022] 100-Lighting fixture; 10-Heat sink; 11-Cavity; 12-Protrusion; 13-Positioning groove; 20-Light source assembly; 21-Substrate; 22-LED bead; 30-Optical assembly; 40-Reflector; 4a-First end; 4b-Second end; 41-Snap-on; 42-Allowing groove; 43-Mounting groove; 50-Lens; 60-Anti-glare cover; 61-Clamping part; 611-Clamping groove; 62-Clamping block; 621-U-shaped groove; 70-Clamping structure; 80-Connecting structure. Detailed Implementation

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0024] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0025] See Figures 1 to 3 This application provides a lighting fixture 100, including a heat sink 10 with a cavity 11, a light source assembly 20 disposed on the bottom of the cavity 11, and an optical assembly 30 detachably fixed in the cavity 11; wherein, the optical assembly 30 includes a reflector 40, a lens 50, and an anti-glare cover 60 connected in sequence.

[0026] In some embodiments, the reflector cup 40 has a first end 4a facing the light source assembly 20 and a second end 4b opposite to the first end 4a.

[0027] In some embodiments, the lens 50 is located at the second end 4b of the reflector cup 40.

[0028] In some embodiments, the anti-glare shield 60 is connected to the second end 4b of the reflector cup 40 and holds the lens 50 between the anti-glare shield 60 and the reflector cup 40.

[0029] The lighting fixture 100 provided in this application includes a heat sink 10, a light source assembly 20, and an optical assembly 30. The optical assembly 30 is assembled by sequentially connecting a reflector 40, a lens 50, and an anti-glare cover 60. When replacing components, the optical assembly 30 can be removed as a whole and replaced with a new optical assembly 30, without having to disassemble and replace the reflector 40, lens 50, and anti-glare cover 60 separately, thereby simplifying the operation and improving the replacement efficiency.

[0030] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.

[0031] See Figures 1 to 4 The lighting fixture 100 provided in this embodiment can be a downlight, spotlight, track light, or other lighting fixture. It includes a heat sink 10, a light source assembly 20, and an optical assembly 30. The heat sink 10 has a cavity 11. The light source assembly 20 and the optical assembly 30 are both installed in the cavity 11 of the heat sink 10. In this embodiment, the heat sink 10 is made of, but is not limited to, metal and is generally, but not limited to, cylindrical. The cavity 11 is located at the upper part of the heat sink 10, and heat dissipation fins are provided at the lower part of the heat sink 10. The cavity 11 has a circular cross-section. The light source assembly 20 is installed at the bottom of the cavity 11, and the optical assembly 30 is disposed on the light source assembly 20 and is detachably fixed in the cavity 11 of the heat sink 10.

[0032] See Figures 1 to 4 The optical component 30 provided in this embodiment includes a reflector 40, a lens 50, and an anti-glare shield 60. The lens 50 is mounted on and supported by the reflector 40. The reflector 40 can reflect the light emitted by the light source component 20 onto the lens 50. The reflector 40 can be made of metal or have a reflective material layer coated on its inner wall. The anti-glare shield 60 is used to hold the lens 50 between the anti-glare shield 60 and the reflector 40. A locking structure 70 is provided between the anti-glare shield 60 and the reflector 40 to connect and fix the two. In this embodiment, the reflector cup 40 has a first end 4a facing the light source assembly 20 and a second end 4b opposite to the first end 4a. The diameter of the reflector cup 40 gradually decreases from the second end 4b to the first end 4a. The lens 50 is located at the second end 4b of the reflector cup 40. The anti-glare shield 60 is connected to the second end 4b of the reflector cup 40 through a snap-fit ​​structure 70, and holds the lens 50 between the anti-glare shield 60 and the reflector cup 40. It can be understood that by connecting the reflector cup 40, the lens 50, and the anti-glare shield 60 in sequence to assemble the optical assembly 30, when replacing the components, the optical assembly 30 can be taken out as a whole and replaced with a new optical assembly 30, without having to disassemble and replace the reflector cup 40, the lens 50, and the anti-glare shield 60 separately. This simplifies the operation, improves the replacement efficiency, and enhances the user experience.

[0033] In other embodiments, the anti-glare shield 60 and the reflector cup 40 can also be connected and fixed by screws, threads, or adhesive.

[0034] See Figures 2 to 4 The engaging structure 70 provided in this embodiment includes a buckle 41 formed on the reflector cup 40 and an engaging portion 61 provided on the anti-glare cover 60. The engaging portion 61 has an engaging groove 611 that engages with the buckle 41. In this embodiment, the number of buckles 41 is not limited to three, and the three buckles 41 are arranged at intervals along the circumference of the reflector cup 40. The number of engaging portions 61 is not limited to three, and they correspond one-to-one with the three buckles 41. In this way, the anti-glare cover 60 engages with the buckle 41 on the reflector cup 40 through the engaging groove 611 of the engaging portion 61, thereby fixing the anti-glare cover 60 and the reflector cup 40 together and holding the lens 50 between the anti-glare cover 60 and the reflector cup 40.

[0035] In other embodiments, the engaging portion 61 may also be formed on the reflector cup 40, and the anti-glare shield 60 may have a corresponding latch 41.

[0036] from Figure 3 and Figure 4 As can be seen, in this embodiment, the engaging part 61 extends downward from the bottom end of the anti-glare cover 60, and an avoidance groove 42 is formed on the side wall of the second end 4b of the reflector cup 40 for the engaging part 61 to slide. The buckle 41 is located in the avoidance groove 42. In this way, when the anti-glare cover 60 and the reflector cup 40 are assembled, the engaging part 61 is inserted into the corresponding avoidance groove 42 and connected with the buckle 41. While fixing the anti-glare cover 60 and the reflector cup 40, it can also limit the two in the circumferential direction to prevent the anti-glare cover 60 and the reflector cup 40 from rotating relative to each other.

[0037] See Figures 2 to 4 In this embodiment, a mounting groove 43 is formed on the end face of the second end 4b of the reflector cup 40 for mounting the lens 50. The anti-glare cover 60 is connected and fixed to the reflector cup 40, pressing the edge of the lens 50 onto the bottom surface of the mounting groove 43. It should be noted that after the lens 50 is placed in the mounting groove 43, the edge of the bottom surface of the lens 50 abuts against the bottom surface of the mounting groove 43, thereby supporting the lens 50 on the mounting groove 43 of the reflector cup 40. The side wall of the mounting groove 43 can restrict the movement of the lens 50. After the anti-glare cover 60 is installed, the bottom end of the anti-glare cover 60 abuts against the edge of the top surface of the lens 50, thereby pressing the lens 50 tightly onto the reflector cup 40.

[0038] In other embodiments, the mounting slot 43 may be disposed on the anti-glare shield 60.

[0039] See Figure 2 and Figure 4In this embodiment, a connecting structure 80 is provided between the anti-glare shield 60 and the radiator 10. This structure is used to fix the anti-glare shield 60 to the radiator 10 when the anti-glare shield 60 rotates relative to the radiator 10 along a first direction D1, and to separate the anti-glare shield 60 from the radiator 10 when it rotates in the opposite direction to the first direction D1. In this embodiment, the connecting structure 80 includes protrusions 12 disposed on the cavity 11 of the radiator 10 and engaging blocks 62 disposed on the anti-glare shield 60. The number of protrusions 12 is not limited to three, and the three protrusions 12 are spaced apart along the circumference of the radiator 10 on the side wall of the cavity 11. The number of engaging blocks 62 is not limited to three, and they correspond one-to-one with the three protrusions 12. The engaging block 62 has a U-shaped groove 621 for the protrusions 12 to slide into and out. The U-shaped groove 621 is formed on the outer surface of the engaging block 62. The outer surface extends along the first direction D1 and connects to the end face of the locking block 62. It can be understood that, through the cooperation of the locking block 62 on the anti-glare cover 60 and the protrusion 12 of the cavity 11, after rotating the anti-glare cover 60, the protrusion 12 can slide into and out of the corresponding U-shaped groove 621 on the locking block 62, thereby fixing and separating the optical component 30 from the heat sink 10, thus realizing the quick assembly and disassembly of the optical component 30 without positioning, and the fixing structure is firm and reliable. In addition, it can also avoid damage to the device during the assembly and disassembly process, so as not to affect the secondary use of each device after assembly and disassembly.

[0040] In other embodiments, the anti-glare shield 60 and the heat sink 10 may be connected by threads.

[0041] See Figures 2 to 4 In this embodiment, the U-shaped groove 621 extends spirally from one end of the locking block 62 to the other end, and the shape of the protrusion 12 is adapted to the U-shaped groove 621. It should be noted that in order to make the surface of the lamp smoother, after the optical component 30 and the heat sink 10 are assembled, the outer end face of the anti-glare cover 60 is basically flush with the end face of the heat sink 10, or the whole is in the cavity 11. Since the U-shaped groove 621 extends spirally, the anti-glare cover 60 can be displaced axially relative to the heat sink 10 while rotating, so that the optical component 30 can be taken out.

[0042] See Figure 2 and Figure 4 In this embodiment, a positioning groove 13 is formed on the heat sink 10 to abut against the anti-glare shield 60 and restrict the movement of the anti-glare shield 60. The positioning groove 13 is arranged around the cavity 11 and communicates with the cavity 11. In this way, by abutting the bottom surface of the anti-glare shield 60 against the positioning groove 13, the position of the optical component 30 can be restricted in the axial direction. In addition, the positioning groove 13 can also support the optical component 30.

[0043] See Figure 2 and Figure 4In this embodiment, the light source assembly 20 includes a substrate 21 and LED beads 22 disposed on the substrate 21. The substrate 21 is, but is not limited to, an aluminum substrate 21, and is fixed to the bottom surface of the cavity 11. A reflector 40 covers the LED beads 22, and the reflector 40 is spaced apart from the substrate 21. It is worth mentioning that the LED beads 22 are disposed in the central area of ​​the substrate 21, and the outer peripheral area of ​​the substrate 21 extends beyond the reflector 40. In this way, the size of the substrate 21 can be designed according to actual needs. In addition, the space between the substrate 21 and the lens 50 is relatively large, and this space is used to place the surface-mount electronic components required for the linear scheme.

[0044] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A lighting fixture, characterized in that, It includes a heat sink with a recess, a light source assembly disposed on the bottom of the recess, and an optical assembly removably fixed in the recess; the optical assembly includes: A reflector having a first end facing the light source assembly and a second end opposite to the first end; Lens, located at the second end; and An anti-glare shield is attached to the second end of the reflector cup and holds the lens between the anti-glare shield and the reflector cup.

2. The lighting fixture according to claim 1, characterized in that, An engaging structure is provided between the anti-glare cover and the reflector cup; the engaging structure includes a plurality of buckles spaced apart along the circumference of the reflector cup and a plurality of engaging parts provided on the anti-glare cover and corresponding to the plurality of buckles respectively, and the engaging parts are provided with engaging grooves for engaging with the buckles.

3. The lighting fixture according to claim 2, characterized in that, An avoidance groove is formed on the second end sidewall of the reflector, and the buckle is located in the avoidance groove.

4. The lighting fixture according to claim 1, characterized in that, The second end face of the reflector cup has a mounting groove for mounting the lens. The anti-glare cover is connected and fixed to the reflector cup and presses the edge of the lens onto the bottom surface of the mounting groove.

5. The lighting fixture according to any one of claims 1 to 4, characterized in that, A connection structure is provided between the anti-glare shield and the radiator, which is used to fix the anti-glare shield to the radiator when the anti-glare shield rotates in a first direction, and to separate the anti-glare shield from the radiator when it rotates in the opposite direction to the first direction.

6. The lighting fixture according to claim 5, characterized in that, The connection structure includes a plurality of protrusions spaced circumferentially along the sidewall of the cavity of the radiator, and a locking block disposed on the anti-glare shield and corresponding to the plurality of protrusions respectively. The locking block has a U-shaped groove for the protrusions to slide in and out.

7. The lighting fixture according to claim 6, characterized in that, The U-shaped groove extends spirally from one end of the locking block to the other end.

8. The lighting fixture according to any one of claims 1 to 4, characterized in that, The radiator has a positioning groove formed on it that abuts against the anti-glare shield and restricts the movement of the anti-glare shield. The positioning groove is arranged around the cavity and communicates with the cavity.

9. The lighting fixture according to any one of claims 1 to 4, characterized in that, The light source assembly includes a substrate and lamp beads disposed on the substrate, and the substrate is fixed to the bottom surface of the cavity.

10. The lighting fixture according to claim 9, characterized in that, The reflector cup is disposed outside the lamp bead, and the reflector cup is spaced apart from the substrate.

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