Optical structure and track lamp

Abstract

The optical structure comprises a reflection cup, a lens and a limiting piece, the reflection cup comprises a cup bottom and a cup wall part, the cup bottom and the cup wall part form a containing cavity in a surrounding mode, and the cup bottom and the cup wall part are provided with a first opening and a second opening which are communicated with the containing cavity respectively; the lens comprises a lens body, a light inlet part and a light outlet part, the light outlet part is provided with a first convex ring abutting against the cup wall part, the light inlet part is provided with a light inlet communicated with the first opening, and the light inlet part abuts against the cup bottom; the limiting piece is fixedly connected with the reflection cup, and the limiting piece limits the lens body in the containing cavity; the first protruding ring covers the second opening, and a light reflecting gap is formed between the lens body and the cup wall part. According to the optical structure, the lens body is fixed in the containing cavity of the reflection cup through the limiting piece and abuts against the cup bottom and the cup wall of the reflection cup, so that the lens is limited in the axial direction and the circumferential direction, and precise light control processing is conducted in cooperation with the reflection cup and the anti-dazzle ring. The utility model further provides a track lamp comprising the optical structure.

Description

Technical Field

[0001] This utility model belongs to the technical field of lighting equipment, specifically relating to an optical structure and a guide rail lamp. Background Technology

[0002] A track light is an LED lighting device that can move on a track and be guided by a track head and connecting rod to change position, thereby adjusting the lighting angle.

[0003] Track lights are mostly used for accent lighting, and their bodies typically use spotlights or downlights with lenses. During lens installation, the lens and light source bracket are assembled point-to-point, for example, by the guide posts on the lens engaging with the grooves on the light source bracket. Due to the limited installation space inside the light fixture, it's not easy to position the lens precisely onto the light source bracket. Furthermore, it's difficult to ensure that the lens's guide posts align accurately with the grooves on the light source bracket. Improper installation can lead to loose components, wire misalignment, and poor light output.

[0004] Existing technology discloses a deep anti-glare downlight, including a lamp body housing, a reflector cup disposed on the lamp body housing, a dual-purpose structure disposed on the reflector cup, an aluminum plate disposed inside the lamp body housing, and multiple mounting holes disposed on the aluminum plate. A lamp holder is disposed below the lens and mounted on the aluminum plate. The lamp body housing is mounted on the aluminum plate, and then the lamp holder is mounted on the mounting holes of the aluminum plate. This downlight uses the dual-purpose structure on the reflector cup to mount lenses of different structures, but it cannot fix the lens in multiple directions, and the problem of lens loosening and inaccurate light control still exists. Utility Model Content

[0005] To address the shortcomings of the prior art, this invention provides an optical structure that uses a limiting member to fix the lens body within the receiving cavity of the reflector. The lens abuts against the bottom and wall of the reflector, limiting its position axially and circumferentially, thus ensuring stable installation and facilitating its integration into the lamp body. This allows for precise light control in conjunction with the reflector and anti-glare ring. This invention also provides a rail light incorporating this optical structure.

[0006] The technical effects to be achieved by this utility model are realized through the following technical aspects:

[0007] In a first aspect, this utility model provides an optical structure, comprising:

[0008] A reflective cup includes a cup bottom and a cup wall, the cup bottom and the cup wall forming a receiving cavity, and the cup bottom and the cup wall are respectively provided with a first opening and a second opening communicating with the receiving cavity;

[0009] A lens includes a lens body and light-incident and light-outcrystal portions disposed at both ends of the lens body. The light-outcrystal portion has a first convex ring that abuts against the wall of the cup. The light-incident portion has a light-incident port communicating with the first opening and abuts against the bottom of the cup.

[0010] The limiting member has a ring-shaped structure and is fixedly connected to the reflector cup. The limiting member confines the lens body within the receiving cavity.

[0011] The first convex ring covers the second opening, and a reflective gap is provided between the lens body and the cup wall.

[0012] In some embodiments, the bottom of the cup includes a substrate and an elastic boss and a clearance groove provided on the substrate. The substrate has a first base surface and a second base surface opposite to each other. The elastic boss extends from the first base surface toward the receiving cavity. The light-incident portion has a light-incident end located on the outer periphery of the light-incident port. The light-incident end abuts against the elastic boss. The elastic boss partially extends into the clearance groove.

[0013] In some embodiments, the elastic boss is provided with a first positioning block, the light-incident end is provided with a first positioning groove, and the first positioning block is fitted and connected in the first positioning groove; the second base surface is fitted and connected to the lamp body.

[0014] In some embodiments, the limiting member includes a limiting body and a second protruding ring disposed inside the limiting body, wherein the first protruding ring is fixed between the upper edge of the cup wall and the second protruding ring.

[0015] In some embodiments, the first convex ring is provided with a groove, and a limiting block is provided on the upper edge of the cup wall, the limiting block being engaged with the groove.

[0016] In some embodiments, the optical structure further includes a fastener, the limiting body has a through hole, the cup wall extends outward to have a mounting portion, the mounting portion has a mounting hole, the fastener passes through the through hole and is fixedly connected to the mounting hole, thereby fixing the reflector cup, the lens and the limiting member together.

[0017] In some embodiments, the optical structure further includes an anti-glare ring detachably connected to the limiting member, the limiting body having a slot, the anti-glare ring having a locking block, and the locking block being snapped into the slot.

[0018] In a second aspect, the present invention provides a rail light, including a lamp body, a back cover, a light source assembly, a power supply assembly, and a connecting rod, as well as the aforementioned optical structure;

[0019] The lamp body includes a housing, a mounting base, and a heat sink. The heat sink is fixedly connected to the inner wall of the housing and the outer wall of the mounting base. The housing is provided with a light emission cavity. The mounting base includes a mounting surface and a second positioning groove provided on the mounting surface. The light source assembly is fixedly connected to the mounting surface.

[0020] The optical structure is installed in the light-emitting cavity, and the bottom of the cup is provided with a second positioning block facing the mounting surface. The second positioning block is connected to the second positioning groove.

[0021] In some embodiments, the light source assembly includes a light source plate and a COB light source attached to the light source plate. The light source plate is attached to the mounting surface, and the COB light source is located entirely in the first opening. The center line of the COB light source coincides with the center line of the lens body.

[0022] The light emitted by the COB light source enters the lens body through the light inlet, and exits to the outside through the light outlet and the anti-glare ring provided on the limiting member; some light overflows to the outside of the cup wall, is reflected by the reflector cup, passes through the reflection gap and re-enters the lens body, and finally exits to the outside through the light outlet and the anti-glare ring.

[0023] In some embodiments, the housing, the mounting base, and the heat sink are integrally die-cast in the lamp body, and the lamp body has heat dissipation grooves between adjacent heat sinks.

[0024] The rear cover is provided with heat dissipation holes, and the rear cover is fixedly connected to the rear end of the lamp body. The housing is also provided with a heat dissipation cavity. The heat dissipation holes and the heat dissipation grooves are arranged corresponding to each other, and the heat dissipation grooves, the heat dissipation cavity and the heat dissipation holes form a heat dissipation channel.

[0025] The power supply assembly is installed in the heat dissipation cavity, and the connecting rod is rotatably connected to the lamp body.

[0026] In summary, this utility model has at least the following advantages:

[0027] 1. The optical structure provided by this utility model uses a ring-shaped limiting member to fix the lens body to the reflector cup, so that the light-incident part and the light-exit part of the lens abut against the bottom and wall of the cup, respectively, thereby axially limiting the lens body within the receiving cavity. Additionally, the reflector cup is connected to the groove of the first convex ring via a limiting block on the upper edge of the cup wall, simultaneously positioning and installing the lens body circumferentially within the receiving cavity. This modular optical structure first installs the lens in the reflector cup and then installs it into the lamp body, achieving convenient and stable lens assembly.

[0028] 2. The optical structure provided by this utility model, by setting an elastic boss at the bottom of the cup, can cooperate and connect with the light-incident part of the lens, which can effectively solve the problem of lens not being firmly installed and loose due to dimensional tolerances or assembly deviations between the lens and the reflector cup.

[0029] 3. The rail light provided by this utility model has the center line of the light source coinciding with the center line of the lens body, which can ensure that the lens can effectively control the light emitted by the light source, so that the light shape and light direction meet the lighting requirements; moreover, the rail light adopts a convection heat dissipation channel, which can effectively improve heat dissipation efficiency and extend the service life of the rail light. Attached Figure Description

[0030] Figure 1 This is an exploded view of the optical structure of Embodiment 1 of this utility model.

[0031] Figure 2 This is a schematic diagram of the optical structure of Embodiment 1 of this utility model.

[0032] Figure 3 for Figure 2 A cross-sectional view along line AA.

[0033] Figure 4 for Figure 3 Enlarged schematic diagram of part B.

[0034] Figure 5 This is a schematic diagram of the reflector cup of Embodiment 1 of this utility model from one viewpoint.

[0035] Figure 6 This is a schematic diagram of the reflector cup of Embodiment 1 of this utility model from another perspective.

[0036] Figure 7 This is a schematic diagram of the connection between the elastic protrusion and the clearance groove in Embodiment 1 of this utility model.

[0037] Figure 8 This is a partially exploded view of the optical structure of Embodiment 2 of this utility model.

[0038] Figure 9 This is a partially exploded view of the guide rail light of Embodiment 3 of this utility model.

[0039] Figure 10 This is a partial schematic diagram of the internal structure of the lamp body in Embodiment 3 of this utility model.

[0040] Figure 11 This is a schematic diagram simulating the optical path of the rail light in Example 3 compared to existing rail lights.

[0041] Figure 12 This is a side view of the back cover of Embodiment 3 of this utility model.

[0042] Figure 13 This is a schematic diagram of the guide rail lamp of Embodiment 3 of this utility model.

[0043] Figure 14 This is a schematic diagram of the lamp body in Embodiment 3 of this utility model.

[0044] Marked in the image:

[0045] 100 - Optical structure;

[0046] 1-Reflector cup, 11-Bottom of cup, 12-Wall of cup, 13-Receiving cavity, 14-Reflective gap, 15-Reflective layer;

[0047] 111-First opening, 112-Base plate, 113-Elastic boss, 114-Allowing groove, 115-Second positioning block;

[0048] 121-Second opening, 122-Upper edge, 123-Limiting block, mounting part 124, mounting hole 125, 126-Reinforcing rib, 1121-First base surface, 1122-Second base surface, 1131-First positioning block;

[0049] 2-Lens, 20-Lens body, 21-Incident light section, 22-Outcrow light section;

[0050] 211-Light inlet, 212-Light inlet end, 221-First convex ring, 222-Groove, 2121-First positioning groove;

[0051] 223 - First light-emitting surface, 224 - Second light-emitting surface, 225 - Light-emitting groove;

[0052] 3-Limiting component, 31-Limiting body, 32-Second convex ring, 33-Slot, 311-Through hole;

[0053] 4-Fasteners;

[0054] 5-Anti-glare ring;

[0055] M - normal, Z1 - lens center line, Z2 - light source center line;

[0056] 200-Lamp body, 300-Back cover, 400-Light source assembly, 500-Power supply assembly, 600-Connecting rod;

[0057] 201-Housing shell, 202-Mounting base, 203-Heat sink, 204-Heat sink groove, 205-Heat sink cavity, 2011-Light emission cavity, 2021-Mounting surface, 2022-Second positioning groove;

[0058] 401 - Light source board, 402 - COB light source. Detailed Implementation

[0059] To facilitate understanding of this utility model, a more comprehensive description will be given below with reference to the accompanying drawings and specific embodiments. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0060] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0061] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0062] 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 invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0063] Example 1

[0064] refer to Figures 1-7 This embodiment provides an optical structure 100 for controlling the light emitted from a light source. The optical structure 100 includes a reflector cup 1, a lens 2, and a limiting member 3, which fixes the lens 2 within the reflector cup 1. The reflector cup 1 includes a bottom 11 and a wall 12, which together form a receiving cavity 13 for accommodating and mounting the lens 2. A first opening 111 and a second opening 121 are respectively formed in the bottom 11 and the wall 12. The reflector cup 1 is generally bowl-shaped, and both the first opening 111 and the second opening 121 are circular, with the first opening 111 being smaller than the second opening 121.

[0065] Lens 2 includes a lens body 20, a light-entry section 21, and a light-exiting section 22. The light-entry section 21 and the light-exiting section 22 are disposed at both ends of the lens body 20. The light-exiting section 22 extends outward and is provided with a first convex ring 221. The first convex ring 221 abuts against the cup wall 12. Specifically, the first convex ring 221 abuts against the upper edge 122 of the cup wall 12 and covers the second opening 121, so that all the light entering the lens body 20 from the first opening 111 of the reflector cup 1 passes through the light-exiting section 22 and exits.

[0066] The light-inlet portion 21 is provided with a light-inlet port 211. A columnar groove is formed in the light-inlet portion 211 towards the light-outlet portion 22. Light enters the columnar groove from the light-inlet port 211 and then enters the lens body 20. When the lens 2 is installed on the reflector cup 1, the light-inlet portion 21 abuts against the bottom 11 of the cup, and the light-inlet port 211 is connected to the first opening 111.

[0067] The limiting member 3 has a ring-shaped structure and is fixedly connected to the reflector cup 1, thereby limiting the lens body 20 in the receiving cavity 13. It should be noted that a reflective gap 14 is formed between the lens body 20 and the cup wall 12 of the reflector cup 1. A reflective layer 15 is coated or attached to the inner side of the cup wall 12 and the side of the cup bottom 11 facing the lens 2. Light escaping from the lens 2 enters the reflective layer 15 through the reflective gap 14 and is then reflected back to the lens body 20 through the reflective gap 14.

[0068] Further reference Figures 4-7 The bottom 11 of the cup includes a substrate 112, and an elastic boss 113 and a clearance groove 114 disposed on the substrate 112. The substrate 112 is provided with a first base surface 1121 and a second base surface 1122, and the clearance groove 114 passes through the first base surface 1121 and the second base surface 1122. The elastic boss 113 extends from the first base surface 1121 toward the receiving cavity 13, that is, one end of the elastic boss 113 is connected to the substrate 112, and the other end is separated from the substrate 112; moreover, when the lens 2 is not in contact with the reflector cup 1, the elastic boss 113 is not squeezed and its entire body is located above the clearance groove 114.

[0069] The light-entry section 21 is provided with a light-entry end 212, which surrounds the periphery of the light-entry port 211 and abuts against the elastic boss 113. When the elastic boss 113 is pressed by the light-entry end 212, part of the elastic boss 113 extends into the relief groove 114, at which time the elastic boss 113 also provides support for the light-entry end 212. Even when there is a dimensional tolerance between the height of the lens and the height of the reflector's receiving cavity, the elastic protrusion with elastic reset function can support the lens axially, and the elastic protrusion, in conjunction with the limiting member, restricts the displacement of the lens axially.

[0070] In some embodiments, the light-incident end 212 of the lens 2 is a smooth annular plane, and the light-incident end 212 abuts against the elastic boss 113. In some embodiments, the elastic boss 113 is further provided with a first positioning block 1131, which extends arcuately from the elastic boss 113 toward the receiving cavity 13; correspondingly, the light-incident end 212 is provided with a first positioning groove 2121, and the first positioning block 1131 is fitted into the first positioning groove 2121. The second base surface 1122 is fitted into the lamp body, and when the optical structure 100 is installed onto the lamp body, the second base surface 1122 is in contact with the mounting plane of the lamp body.

[0071] Reference Figure 1 and Figure 3 The limiting member 3 includes a limiting body 31 and a second convex ring 32. The second convex ring 32 is located inside the limiting body 31, that is, the second convex ring 32 extends inward from the limiting body 31. When the limiting member 3 limits the lens 2 to be installed in the receiving cavity 13 of the reflector cup 1, the second convex ring 32 fixes the first convex ring 221 to the upper edge 122 of the cup wall portion 12, that is, the first convex ring 221 of the lens 2 is fixed between the upper edge 122 of the cup wall portion 12 and the second convex ring 32 of the limiting member 3.

[0072] Furthermore, the first convex ring 221 has a groove 222, and the reflector cup 1 has a limiting block 123 on the upper edge 122 of the cup wall portion 12. The limiting block 123 is engaged and connected in the groove 222. Specifically, the limiting block 123 is engaged and connected in the groove 222, thereby restricting the rotation of the lens body 20 in the circumferential direction and fixing the position of the lens 2.

[0073] In this embodiment, the optical structure 100 also includes a fastener 4, which is a countersunk screw. The limiting body 31 is provided with a through hole 311, and the cup wall portion 12 extends outward on the side wall and is provided with a mounting portion 124, which has a mounting hole 125. After the limiting member 3 fixes the lens 2 in the receiving cavity 13, the fastener 4 passes through the through hole 311 and is fixedly connected in the mounting hole 125, thereby fixing the reflector cup 1, the lens 2 and the limiting member 3 together.

[0074] The reflector cup is provided with multiple reinforcing ribs 126 on the outer side of the cup wall 12. The reinforcing ribs 126 extend from the bottom 11 of the cup along the outer side of the cup wall 12 to the upper edge 122 of the cup wall 12. Moreover, the reinforcing ribs 126 are evenly distributed on the outer side of the cup wall 12, which can enhance the overall structural strength of the reflector cup 1, ensure that the reflection curve corresponding to the reflective layer of the cup wall 12 is not deformed, and abut against the lamp body.

[0075] like Figure 3 and Figure 4As shown, the bottom 11 of the lens 2 is mounted on the first base surface 1121, which is a mounting plane with a normal M; the lens body 20 has a lens center line Z1, which is parallel to the normal M and also perpendicular to the first base surface 1121.

[0076] The light-emitting section 22 is further provided with a first light-emitting surface 223, a second light-emitting surface 224, and a light-emitting groove 225. The light-emitting groove 224 is recessed from the middle of the first light-emitting surface 223 toward the light-incident section 21. The second light-emitting surface 224 is located at the bottom of the light-emitting groove 225, and multiple grid-like light-emitting microstructures are provided on the second light-emitting surface 224. The first light-emitting surface 221 is a light-emitting plane that slopes obliquely toward the light-incident section 21.

[0077] With the direction along the center line Z1 as the axial direction, the limiting member 3 fixes the lens 2 in the receiving cavity 13 of the reflector cup 1. In the axial direction, the light-incident part 21 abuts against the elastic boss 113 through the first positioning block 1131 and the first positioning groove 2121 and is installed on the first base surface 1121. At this time, the elastic boss 113 is squeezed by the light-incident part 21 and partially extends into the relief groove 114. At the same time, it also supports the light-incident part 21 in the axial direction, that is, it provides an upward supporting force to the lens body 20. The limiting member 3 presses the first convex ring 221 of the light-emitting part 22 against the upper edge 122 of the cup wall part 12 through the second convex ring 32. Finally, it is locked with fastener 4, so that the lens 2 is installed in the receiving cavity 13 in the axial direction. The light-incident part 21 and the light-emitting part 22 of the lens 2 are subjected to upward and downward pressure respectively, and can be well compatible with height tolerance, so that the lens body 20 does not loosen in the axial direction and ensures that the position is fixed.

[0078] In the circumferential direction, the reflector cup 1 has a limiting block 123 on the upper edge 122 of the cup wall 12. The limiting block 123 is engaged in the groove 222 that matches it, so that the lens body 20 cannot rotate in the circumferential direction, thus ensuring the stable installation position of the lens 2 and avoiding problems such as loosening and abnormal noise after assembly.

[0079] The optical structure provided in this embodiment uses a ring-shaped limiting member to fix the lens body to the reflector cup, so that the light-incident and light-exit parts of the lens abut against the bottom and wall of the cup, respectively. Fasteners are used to fix the reflector cup, lens, and limiting member together, axially confining the lens body within the receiving cavity. Additionally, a limiting block on the upper edge of the cup wall engages with the groove of the first convex ring, simultaneously positioning and confining the lens body circumferentially within the receiving cavity. This modular optical structure first installs the lens in the reflector cup and then into the lamp body, achieving convenient and stable lens assembly.

[0080] Example 2

[0081] exist Figures 1-7 Based on reference Figure 8 In this embodiment, the optical structure 100 includes a reflector 1, a lens 2, a limiting member 3, a fastener 4, and an anti-glare ring 5. The fastener 4 securely connects the reflector 1, the lens 2, and the limiting member 3 together, while the anti-glare ring 5 is detachably connected to the limiting member 3. Specifically, the limiting member 3 has a slot 33 on its limiting body 31, and the anti-glare ring 5 has a locking block 51. The locking block 51 is snapped into the slot 33, thereby mounting the anti-glare ring 5 onto the limiting member 3. The light, after being controlled by the lens 2, enters the stepped inner wall 52 of the anti-glare ring 5 from the light-emitting part 22 and finally exits to the outside.

[0082] Example 3

[0083] exist Figures 1-8 Based on reference Figures 9-12 This embodiment provides a rail light, including a lamp body 200, a back cover 300, a light source assembly 400, a power supply assembly 500, and a connecting rod 600, as well as an optical structure 100 of embodiment 1 or embodiment 2.

[0084] The lamp body 200 includes a housing 201, a mounting base 202, and a heat sink 203. The heat sink 203 is fixedly connected to the inner wall of the housing 201 and the outer wall of the mounting base 202. The housing 201 is provided with a light-emitting cavity 2011. The mounting base 202 includes a mounting surface 2021 and a second positioning groove 2022 provided on the mounting surface 2021. The light source assembly 400 is fixedly connected to the mounting surface 2021.

[0085] The optical structure 100 is installed in the light-emitting cavity 2011. The reflector 1 has a second positioning block 115 at its bottom 11 facing the mounting surface 2021. The second positioning block 115 is connected in the second positioning groove 2022. It can be seen that the reflector 1 in this embodiment can be used to install a lens on the one hand, and on the other hand, it is closely connected to the mounting base through the second base surface.

[0086] The light source assembly 400 includes a light source plate 401 and a COB light source 402, with the COB light source 402 fixedly attached to the light source plate 401; and the light source plate 401 is attached to the mounting surface 2021. Thus, the COB light source 402 is entirely located within the first opening 111 of the reflector 1. The COB light source 402 has a light source center line Z2, which coincides with the lens center line Z1 of the lens body.

[0087] Figure 11 This is a schematic diagram simulating the optical path of the rail light in this embodiment compared to existing rail lights, as shown below. Figure 11 As shown, in the 11A rail light, the light source assembly is controlled by a lens before being emitted to the outside through an anti-glare ring. Some of the light leaks out from the lens and is absorbed by the inner cavity of the lamp body, without being reflected or emitted to the outside.

[0088] In the guide rail light of this embodiment, as shown in 11B, the light emitted by the COB light source enters the lens body through the light inlet, and exits to the outside through the light outlet and the anti-glare ring provided on the limiting member. Some light escapes from the lens body, and after reaching the outer side of the cup wall, it is reflected by the reflective layer of the reflector cup and re-enters the lens body after passing through the reflection gap, and finally exits to the outside through the light outlet and the anti-glare ring.

[0089] In the lamp body 200, the housing 201, the mounting base 202 and the heat sink 203 are integrally die-cast. The lamp body 200 has heat sink grooves 204 between adjacent heat sinks 203, the housing has a heat sink cavity 205, the power supply component is installed in the heat sink cavity 205, and the connecting rod 600 is rotatably connected to the lamp body 200 to adjust the lighting angle.

[0090] The rear cover 300 is provided with a heat dissipation hole 301. The rear cover 300 is fixedly connected to the rear end of the lamp body 200. The heat dissipation hole 301 and the heat dissipation groove 204 are arranged correspondingly to each other. Moreover, the heat dissipation groove 204, the heat dissipation cavity 205 and the heat dissipation hole 301 form a heat dissipation channel, which can promote airflow inside the lamp body and remove the heat generated by the COB light source from the mounting base and heat sink.

[0091] The rail light provided in this embodiment employs a stable optical structure, and the center line of the COB light source is precisely aligned with the center line of the lens body. This allows the lens, reflector, and anti-glare ring to effectively and stably control the light emitted by the COB light source, ensuring that the light shape and direction meet the lighting requirements. The rail light uses a convection-type heat dissipation channel, which can effectively improve heat dissipation efficiency and extend the service life of the rail light.

[0092] The above description is merely an example and illustration of the structure of this utility model, and while the description is quite specific and detailed, it should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these obvious substitutions all fall within the protection scope of this utility model.

Claims

1. Optical structure, characterized in that The optical structure comprises a reflecting cup, a lens, and a limiting member. The reflecting cup comprises a cup bottom and a cup wall, which surround a containing cavity. The lens comprises a lens body, an entrance light part, and an exit light part. The limiting member is annular and is fixedly connected with the reflecting cup. The first convex ring covers the second opening.

2. The optical structure of claim 1, wherein, The cup bottom comprises a base plate, an elastic boss, and an avoiding groove.

3. The optical structure of claim 2, wherein, The base plate comprises a first base surface and a second base surface.

4. The optical structure of claim 1, wherein, The entrance light part comprises an entrance light end.

5. The optical structure of claim 4, wherein, The elastic boss is provided with a first positioning block.

6. The optical structure of claim 4, wherein, The second base surface is fixedly connected with the lamp body.

7. The optical structure of claim 6, wherein, The limiting member comprises a limiting body and a second convex ring.

8. A track light characterized by, The first convex ring is fixed between the upper edge of the cup wall and the second convex ring. The first convex ring is provided with a groove. The upper edge of the cup wall is provided with a limiting block.

9. The track light of claim 8, wherein, The limiting block is fixedly connected with the groove. The optical structure further comprises a fastener. The limiting body is provided with a through hole. The cup wall is provided with an installation part. The installation part is provided with an installation hole. The fastener is fixedly connected with the installation hole. The optical structure further comprises an anti-glare ring. The limiting body is provided with a clamping groove. The anti-glare ring is provided with a clamping block. The clamping block is buckled with the clamping groove. The lamp body comprises a shell, an installation base, and a heat dissipation member. The heat dissipation member is fixedly connected with the inner wall of the shell and the outer wall of the installation base. The shell is provided with an exit light cavity. The installation base comprises an installation surface and a second positioning groove. The optical structure is installed in the exit light cavity. The cup bottom is provided with a second positioning block. The second positioning block is fixedly connected with the second positioning groove. The light source assembly comprises a light source plate and a COB light source. The light source plate is fixedly connected with the installation surface. The COB light source is located in the first opening. The center line of the COB light source is coincident with the center line of the lens body. The light emitted by the COB light source enters the lens body through the light inlet, and is emitted to the outside through the light outlet and the anti-dazzle ring arranged on the limiting member. Part of the light overflows to the outside of the cup wall, is reflected by the reflector cup, reenters the lens body through the reflection gap, and is finally emitted to the outside through the light outlet and the anti-dazzle ring.

10. The track light of claim 9, wherein, In the lamp body, the shell, the mounting base and the heat dissipation member are integrally pressure die cast, and the lamp body is provided with heat dissipation grooves between adjacent heat dissipation members. The rear cover is provided with a heat dissipation through hole, is fixedly connected to the rear end of the lamp body, and the shell is further provided with a heat dissipation cavity; the heat dissipation through hole and the heat dissipation grooves are arranged in correspondence with each other, and the heat dissipation grooves, the heat dissipation cavity and the heat dissipation through hole form a heat dissipation channel; The power supply assembly is mounted in the heat dissipation cavity, and the connecting rod is rotatably connected to the lamp body.

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