Illuminating lamp

Abstract

The utility model provides a lighting lamp. The lighting lamp comprises a light-emitting plate, a rotating shaft and a light-transmitting plate. The rotating shaft is installed on the light-emitting side of the light-emitting plate. The light-transmitting plate is located on the light-emitting side of the light-emitting plate and rotatably connected to the rotating shaft, and light emitted by the light-emitting plate is emitted out after passing through the light-transmitting plate. When the light-transmitting plate is driven to rotate around the central axis of the rotating shaft, the distance between the light-transmitting plate and the light-emitting plate is changed, and the light-emitting angle of light emitted by the light-emitting plate through the light-transmitting plate is correspondingly changed. Therefore, the distance between the light-transmitting plate and the light-emitting plate is adjusted by rotating the light-transmitting plate, the light-emitting angle of light emitted by the light-emitting plate after passing through the light-transmitting plate can be adjusted, the structure can be simplified, parts are reduced, the cost is reduced, operation is convenient, and convenience is brought to users.

Description

Technical Field

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

[0002] In the prior art, the light output angle of the lamp is generally fixed. Of course, there are also some lamps that can adjust the light output angle, but the adjustment structure of the light output angle of these lamps is relatively complex, with many parts, high cost, and difficult to operate, which brings inconvenience to users. Utility Model Content

[0003] In view of this, the present application provides a lighting fixture that can solve the above technical problems.

[0004] The present application provides a lighting fixture, comprising:

[0005] Light-emitting panels;

[0006] A rotating shaft, the rotating shaft is installed on the light emitting side of the light emitting panel;

[0007] A light-transmitting plate, which is located at the light-emitting side of the light-emitting plate and is rotatably connected to the rotating shaft; the light emitted by the light-emitting plate is emitted after passing through the light-transmitting plate;

[0008] When the light-transmitting plate is driven to rotate around the central axis of the rotating shaft, the distance between the light-transmitting plate and the luminous plate changes, and the light emission angle of the light emitted by the luminous plate after passing through the light-transmitting plate changes accordingly.

[0009] In some possible embodiments of the present application, a plurality of spiral grooves are provided on the peripheral wall of the rotating shaft, and the lighting fixture includes a plurality of connectors, and the plurality of connectors are arranged in a one-to-one correspondence with the plurality of spiral grooves, each of the connectors includes a first end and a second end arranged opposite to each other, the first end of each connector is connected to the light-transmitting plate, and the second end of each connector is inserted into the corresponding spiral groove and can slide in the spiral groove following the rotational movement of the light-transmitting plate.

[0010] In some possible embodiments of the present application, at least two limit points are provided in the spiral groove, and the at least two limit points are spaced apart in the spiral groove along the spiral direction of the spiral groove. When the connector is engaged with different limit points in the spiral groove, the distance between the light-transmitting plate and the light-emitting plate is different, and the light emitted by the light-emitting plate has different light emission angles after passing through the light-transmitting plate.

[0011] In some possible implementations of the present application, the spiral groove includes a spiral portion, and the at least two limiting points are arranged in the spiral portion.

[0012] In some possible embodiments of the present application, the spiral groove also includes a transition portion and an insertion portion, the transition portion connects the spiral portion and the insertion portion, the rotating shaft also includes an end surface away from the side of the light-emitting plate, and the insertion portion extends from the peripheral wall of the rotating shaft and passes through the end surface of the rotating shaft.

[0013] In some possible implementations of the present application, the opening size of the insertion portion on the end surface of the rotating shaft is larger than the outer diameter of the second end of the connector.

[0014] In some possible embodiments of the present application, the spiral portion includes a first side wall surface close to the end face, and a stop portion is formed on one end of the spiral portion close to the transition portion. The stop portion is adjacent to the opening of the insertion portion and protrudes from the first side wall surface toward a side away from the end face.

[0015] In some possible embodiments of the present application, the spiral portion includes a first side wall surface close to the end surface, and the spiral portion also includes a second side wall surface on a side away from the end surface. A convex ring is provided on the second end of the connector, and the convex ring cooperates with the first side wall surface and the second side wall surface of the spiral portion respectively.

[0016] In some possible embodiments of the present application, the light-transmitting plate includes a light-transmitting portion and a mounting portion, the light-transmitting portion surrounds the mounting portion, the mounting portion is recessed relative to the light-transmitting portion toward a side away from the light-emitting plate to form a groove, a plurality of mounting holes are provided on the inner side wall of the groove, and the first ends of the plurality of connectors are respectively connected to the plurality of mounting holes.

[0017] In some possible embodiments of the present application, the lighting fixture also includes a limiting member and a heat sink, the heat sink includes a peripheral side wall and a mounting plate, the peripheral side wall surrounds the mounting plate to form a mounting groove, the light-emitting board and the light-transmitting board are installed in the mounting groove, the light-transmitting board is located on the side of the light-emitting board away from the heat sink, the limiting member is located on the side of the light-transmitting board away from the light-emitting board, and one end of the limiting member is connected to the peripheral side wall, and the other end abuts against the surface of the light-transmitting board on the side away from the light-emitting board.

[0018] In some possible implementations of the present application, a limiting portion is provided at an edge of the light-transmitting plate away from the light-emitting plate, and the limiting portion cooperates with the limiting member to limit the rotational movement of the light-transmitting plate relative to the light-emitting plate.

[0019] In some possible implementations of the present application, a connection port is provided on the mounting portion, and the lighting fixture further includes a communication module, and the communication module is installed on the connection port.

[0020] Therefore, in the present application, the light emitted by the light-emitting panel is emitted after the light-transmitting panel. The distance between the light-transmitting panel and the light-emitting panel is related to the light-emitting angle of the light emitted by the light-emitting panel after the light-transmitting panel. When the distance between the light-transmitting panel and the light-emitting panel changes, the light-emitting angle of the light emitted by the light-emitting panel after the light-transmitting panel changes accordingly. Therefore, by rotating the light-transmitting panel to adjust the distance between the light-transmitting panel and the light-emitting panel, the light-emitting angle of the light emitted by the light-emitting panel after the light-transmitting panel can be adjusted, which can simplify the structure, reduce parts, reduce costs, facilitate operation, and bring convenience to users. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the utility model technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 is a schematic diagram of a three-dimensional structure of a lighting fixture in an embodiment of the present application;

[0023] Figure 2 for Figure 1 Schematic diagram of the decomposition of

[0024] Figure 3 for Figure 1 A schematic cross-sectional view at III-III;

[0025] Figure 4 for Figure 3 A local enlarged view at IV;

[0026] Figure 5 This is a schematic diagram of the assembly of a rotating shaft and a connector in one embodiment of the present application;

[0027] Figure 6 for Figure 5 Schematic diagram of the decomposition of

[0028] Figure 7 for Figure 1 A schematic diagram of the three-dimensional structure of the lighting fixture in another direction;

[0029] Figure 8 for Figure 7 Schematic diagram of the decomposition of

[0030] Fig. 9 for Figure 2 An enlarged view of the light-transmitting member in FIG.

[0031] Fig.10 for Fig. 9 A local enlarged schematic diagram at IX;

[0032] Fig.11 for Figure 7 A top view of

[0033] Fig.12 for Fig.11 A partial enlarged schematic diagram at point XI. DETAILED DESCRIPTION

[0034] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0035] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific state (as shown in the accompanying drawings). If the specific state changes, the directional indication will also change accordingly.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0037] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] Please refer to Figures 1 to 4 , Figure 1 is a schematic diagram of the three-dimensional structure of a lighting fixture 1 in an embodiment of the present application, Figure 2 for Figure 1 Schematic diagram of the decomposition of Figure 3 for Figure 1 Schematic diagram of the cross section at III-III, Figure 4 for Figure 3 A partial enlarged view at IV.

[0039] like Figure 2 As shown, the lighting fixture 1 includes a light-emitting panel 11, a rotating shaft 12 and a light-transmitting panel 13. The light-emitting panel 11 has a light-emitting side 111, wherein the light-emitting side 111 is a side of the light-emitting panel 11 close to the light-transmitting panel 13. Figure 3 and Figure 4 As shown, the rotating shaft 12 is installed on the light-emitting side 111 of the light-emitting panel 11. The light-transmitting plate 13 is located on the light-emitting side 111 of the light-emitting panel 11 and is rotatably connected to the rotating shaft 12. The light emitted by the light-emitting panel 11 is emitted after passing through the light-transmitting plate 13. When the light-transmitting plate 13 is driven to rotate around the central axis of the rotating shaft 12, the distance between the light-transmitting plate 13 and the light-emitting panel 11 changes, and the light-emitting angle of the light emitted by the light-emitting panel 11 after passing through the light-transmitting plate 13 changes accordingly. The light-emitting angle refers to the light distribution angle A of all the light emitted from the light-emitting panel 11 after passing through the light-transmitting plate 13.

[0040] Thus, in the present application, the light emitted by the light-emitting panel 11 is emitted after passing through the light-transmitting panel 13. The distance between the light-transmitting panel 13 and the light-emitting panel 11 is related to the light-emitting angle of the light emitted by the light-emitting panel 11 after passing through the light-transmitting panel 13. When the distance between the light-transmitting panel 13 and the light-emitting panel 11 changes, the light-emitting angle of the light emitted by the light-emitting panel 11 after passing through the light-transmitting panel 13 changes accordingly. Therefore, by rotating the light-transmitting panel 13 to adjust the distance between the light-transmitting panel 13 and the light-emitting panel 11, the light-emitting angle of the light emitted by the light-emitting panel 11 after passing through the light-transmitting panel 13 can be adjusted, which can simplify the structure, reduce parts, reduce costs, facilitate operation, and bring convenience to users.

[0041] In some embodiments, the light-emitting board 11 can emit light. For example, a light strip is installed on the side of the light-emitting board 11 facing the light-transmitting board 13, and the light strip can be but is not limited to an LED light strip, and the light strip is a plurality of light strip circles that spread from the center to the edge of the light-emitting board 11. In another embodiment, the light strip can be arranged in a zigzag shape or the like. The light strip can emit light. In other embodiments, a plurality of lamp beads can be provided on the side of the light-emitting board 11 facing the light-transmitting board 13, and the lamp beads can emit light, which is not limited here.

[0042] Therefore, the light emitting plate 11 can emit light and can be emitted after passing through the light transmitting plate 13 .

[0043] In some embodiments, please refer again to Figure 2 and Figure 3, the light-transmitting plate 13 is a semi-transparent plastic or semi-transparent glass structure. The light-transmitting plate 13 protrudes outward from the side away from the light-emitting plate 11, and the light-transmitting plate 13 spreads outward from the center of the light-transmitting plate 13 and is evenly arranged to form various tubular light-transmitting circles 131. The concave depth of each light-transmitting circle 131 on the side close to the light-emitting plate 11 is 3 to 5 mm, and the pipe diameter of each light-transmitting circle 131, that is, the radial width, is 6.4 to 10 mm, and the distance between the center points of two adjacent light-transmitting circles 131 is 10 to 15 mm. It can be understood that in other embodiments, the concave depth, pipe diameter and other dimensions of the light-transmitting circle 131 can be adjusted according to actual needs.

[0044] Therefore, the lighting fixture 1 in the present application uses a light-transmitting plate 13 having a plurality of light-transmitting circles 131 with the above parameters, so that its UGR (Unified Glare Rating) value is less than 28, thereby reducing glare.

[0045] In some embodiments, please refer to Figure 5 and Figure 6 , Figure 5 FIG. 1 is a schematic diagram of the assembly of the rotating shaft 12 and the connector 14 in one embodiment of the present application. Figure 6 for Figure 5 Schematic diagram of the decomposition. The rotating shaft 12 is cylindrical. The rotating shaft 12 has a peripheral wall 121. A plurality of spiral grooves 122 are provided on the peripheral wall 121. Among them, the plurality of spiral grooves 122 are spiral grooves with the central axis of the rotating shaft 12 as the rotation axis. The lighting fixture 1 includes a plurality of connectors 14, and the plurality of connectors 14 are arranged in a one-to-one correspondence with the plurality of spiral grooves 122. Each of the connectors 14 includes a first end 141 and a second end 142 arranged opposite to each other. The first end 141 of each connector 14 is connected to the light-transmitting plate 13, and the second end 142 of each connector 14 is inserted into the corresponding spiral groove 122. The connector 14 can slide in the spiral groove 122 following the rotational movement of the light-transmitting plate 13.

[0046] Therefore, through the cooperation between the plug-in component 14 and the spiral groove 122 on the rotating shaft 12, the rotational movement of the light-transmitting plate 13 relative to the rotating shaft 12 can be more stable and reliable, and the stroke stability is better.

[0047] In some embodiments, please refer again to Figure 5 and Figure 6, the plurality of spiral grooves 122 are arranged at intervals in the circumferential direction of the peripheral wall 121 of the rotating shaft 12. In this embodiment, the plurality of spiral grooves 122 include three spiral grooves 122, and the three spiral grooves 122 are distributed at intervals in the circumferential direction of the peripheral wall 121 of the rotating shaft 12. It can be understood that the three spiral grooves 122 have the same structural shape, but are distributed at different positions in the circumferential direction of the peripheral wall 121 of the rotating shaft 12. In other embodiments, the number of the plurality of spiral grooves 122 is not limited to three, and can also be one, two, four or more than four, which is not limited here.

[0048] In some embodiments, please refer again to Figure 5 and Figure 6 , at least two limiting points 1221 are provided in the spiral groove 122, and the at least two limiting points 1221 are arranged at intervals in the spiral groove 122 along the spiral direction of the spiral groove 122. When the plug-in 14 is engaged with different limiting points 1221 in the spiral groove 122, the distances between the light-transmitting plate 13 and the light-emitting plate 11 are different, and the light emitted by the light-emitting plate 11 has different light-emitting angles after passing through the light-transmitting plate 13. In this embodiment, the at least two limiting points 1221 include three limiting points 1221, and the three limiting points 1221 are arranged at intervals in the spiral groove 122 along the spiral direction of the spiral groove 122. Therefore, the light emitted by the light-emitting plate 11 has three light-emitting angles after passing through the light-transmitting plate 13, for example, 60°, 85° and 110° respectively. In other embodiments, the at least two limiting points 1221 include but are not limited to three limiting points 1221, and the light emitted by the light-emitting panel 11 after passing through the light-transmitting panel 13 has an output angle including but not limited to 60°, 85° and 110°, which is not limited here.

[0049] Therefore, the connector 14 can engage with different limiting points 1221 in the spiral groove 122 while sliding in the spiral groove 122 following the rotation of the light-transmitting plate 13 to limit different light emission angles of the light-emitting plate 11 relative to the light-transmitting plate 13 .

[0050] In some embodiments, the limiting point 1221 is a groove. The plug-in component 14 is an elastic pin.

[0051] Thus, when the connector 14 slides in the spiral groove 122 but does not slide to the position of the current limit point 1221, the connector 14 is in an elastically compressed state. When the connector 14 slides in the spiral groove 122 to the current limit point 1221, the connector 14 extends into the current limit point 1221 under the action of its elastic restoring force and engages with the current limit point 1221. When it is necessary to adjust the light output angle of the light-emitting panel 11 relative to the light-transmitting panel 13, the light-transmitting panel 13 is rotated, and the light-transmitting panel 13 drives the connector 14 to move, forcing the connector 14 to be compressed and retracted to overcome the resistance generated by the current limit point 1221, so that the connector 14 is separated from the current limit point 1221 and continues to move to the next limit point 1221 and engages with the next limit point 1221.

[0052] In some embodiments, the inner wall surface of the groove of the limiting point 1221 is a wedge-shaped surface. Correspondingly, the end of the second end 142 of the plug-in component 14 is also wedge-shaped.

[0053] Thus, since the inner wall surface of the groove of the limit point 1221 is a wedge-shaped surface, the end of the second end 142 of the connector 14 is also wedge-shaped. Therefore, through the cooperation of the wedge-shaped surface and the wedge-shaped end, the connector 14 can be more easily inserted into the limit point 1221 or pulled out from the limit point 1221.

[0054] In some embodiments, please refer again to Figure 5 and Figure 6 The spiral groove 122 includes a spiral portion 1222, a transition portion 1223 and an insertion portion 1224. The at least two limiting points 1221 are arranged in the spiral portion 1222. The transition portion 1223 communicates with the spiral portion 1222 and the insertion portion 1224. The rotating shaft 12 also includes an end surface 1220 away from the side of the light-emitting plate 11. The insertion portion 1224 extends from the peripheral wall 121 of the rotating shaft 12 and passes through the end surface 1220 of the rotating shaft 12.

[0055] Thus, when the light-transmitting plate 13 equipped with the connector 14 is plugged into the rotating shaft 12, the second end 142 of the connector 14 can slide into the spiral portion 1222 through the insertion portion 1224. After the second end 142 of the connector 14 is inserted into the insertion portion 1224, the light-transmitting plate 13 starts to rotate, and the light-transmitting plate 13 drives the connector 14 to pass through the transition portion 1223 and slide into the spiral portion 1222, thereby simplifying the plug-in operation of connecting the light-transmitting plate 13 equipped with the connector 14 to the rotating shaft 12.

[0056] In some embodiments, the opening size of the inserting portion 1224 on the end surface 1220 of the rotating shaft 12 is larger than the outer diameter of the second end 142 of the connector 14 .

[0057] Thus, since the opening size of the insertion portion 1224 on the end face 1220 of the rotating shaft 12 is larger than the outer diameter of the second end 142 of the connector 14, the second end 142 of the connector 14 can be more easily inserted into the insertion portion 1224, further simplifying the plug-in operation of plugging the light-transmitting plate 13 equipped with the connector 14 into the rotating shaft 12.

[0058] In some embodiments, please refer again to Figure 5 and Figure 6 The spiral portion 1222 includes a first side wall surface 1227 close to the end surface 1220. A stopper portion 1226 is formed on one end of the spiral portion 1222 close to the transition portion 1223. The stopper portion 1226 is adjacent to the opening of the insertion portion 1224 and protrudes from the first side wall surface 1227 toward a side away from the end surface 1220.

[0059] Thus, when the connector 14 slides in the spiral portion 1222, the stop portion 1226 provides a limit for the sliding of the connector 14 in the spiral portion 1222, thereby preventing the connector 14 from slipping out of the spiral portion 1222 during normal adjustment of the light-emitting angle of the light-transmitting plate 13 relative to the light-emitting plate 11, thereby causing the light-transmitting plate 13 and the light-emitting plate 11 to separate, causing operational inconvenience to the user.

[0060] In some embodiments, the spiral portion 1222 includes a second side wall surface 1228 on a side away from the end surface 1220 . In some embodiments, the distance between the first side wall surface 1227 and the second side wall surface 1228 of the spiral portion 1222 is substantially equal to the maximum outer diameter of the connector 14 .

[0061] Thus, the spiral portion 1222 can provide a stable and reliable guiding function for the connector 14 .

[0062] In some embodiments, a convex ring 143 is provided on the second end 142 of the plug-in component 14, and the convex ring 143 is used to respectively cooperate with the first side wall surface 1227 and the second side wall surface 1228 of the spiral portion 1222. In this way, other positions of the plug-in component 14 except the convex ring 143 can have a smaller outer diameter than the convex ring 143, which can save the material cost of the plug-in component 14 and reduce the overall weight of the lighting fixture 1.

[0063] In some embodiments, the insertion portion 1224 includes a third side wall surface 1229 on a side away from the end surface 1220. The second side wall surface 1228 and the third side wall surface 1229 are substantially flush. The fourth side wall surface 1230 on a side away from the end surface 1220 of the transition portion 1223 is recessed toward the side away from the end surface 1220 relative to the second side wall surface 1228 and the third side wall surface 1229. Therefore, the transition portion 1223 is substantially in a meniscus shape. The fourth side wall surface 1230 is disposed face to face with the stop portion 1226.

[0064] Therefore, the transition portion 1223 itself also has the function of limiting the connector 14 .

[0065] In some embodiments, a plurality of first mounting portions 124 are provided on a side of the rotating shaft 12 close to the light-emitting board 11, and the rotating shaft 12 is mounted on the surface of the light-emitting side 111 of the light-emitting board 11 through the plurality of first mounting portions 124. In some specific embodiments, the plurality of first mounting portions 124 are a plurality of lugs extending outwardly from the peripheral wall of the rotating shaft 12 close to the light-emitting board 11 at intervals. In other embodiments, the plurality of first mounting portions 124 can be connected to each other to form a mounting ring. In other embodiments, the plurality of first mounting portions 124 can also be a plurality of mounting holes provided on the end surface of the rotating shaft 12 close to the light-emitting board 11, etc. This is not limited here.

[0066] It can be understood that, in some other embodiments, the transition portion 1223 and the insertion portion 1224 can be omitted.

[0067] In some embodiments, please refer to Figure 7 and Figure 8 , Figure 7 for Figure 1 A schematic diagram of the three-dimensional structure of the lighting fixture 1 in another direction, Figure 8 for Figure 7 The light-transmitting plate 13 includes a light-transmitting portion 1310 and a second mounting portion 132, and the light-transmitting portion 1310 surrounds the second mounting portion 132. A plurality of light-transmitting rings 131 are disposed on the light-transmitting portion 1310. Fig. 9 and Fig.10 The second mounting portion 132 is recessed relative to the light-transmitting portion 1310 toward a side away from the light-emitting board 11 to form a groove, and the second mounting portion 132 is sleeved on the rotating shaft 12. The inner side wall of the groove is recessed at intervals to form a plurality of mounting holes 133, and the extension line of the central axis of each mounting hole 133 intersects with the central axis of the second mounting portion 132, and the first ends 141 of the plurality of connectors 14 are respectively installed in the plurality of mounting holes 133.

[0068] Therefore, the first ends 141 of the plurality of connectors 14 can be reliably installed in the plurality of installation holes 133 and are not easy to fall off, thereby simplifying the installation and facilitating the operation of the light-transmitting plate 13 .

[0069] In some embodiments, the mounting hole 133 includes a hole portion 1331 and an opening portion, the hole portion 1331 is cylindrical, the extension line of the central axis of the hole portion 1331 intersects or is perpendicular to the central axis of the second mounting portion 132, and the opening portion 1332 is located on the peripheral side wall of the hole portion 1331 and communicates with the hole portion 1331. The diameter of the hole portion 1331 is equal to the diameter of the first end 141 of the plug connector 14, so the first end 141 of the plug connector 14 can be installed in the hole portion 1331. The opening portion 1332 is located on the peripheral side wall of the hole portion 1331 to facilitate the molding and demolding of the mounting hole 133.

[0070] In some embodiments, please refer again to Figure 8 The holding portion 135 includes a first protrusion 1351 and a second protrusion 1352. The first protrusion 1351 is formed by the second mounting portion 132 protruding toward the side away from the light-emitting plate 11 relative to the light-transmitting portion 1310. Correspondingly, the second protrusion 1352 is formed by the position of the second mounting portion 132 corresponding to the mounting hole 133 protruding toward the radial direction away from the second mounting portion 132, thereby forming a cylindrical holding portion 135 with convex edges.

[0071] When installing or rotating the light-transmitting plate 13 , the holding portion 135 may be held for operation. Compared with holding the edge of the light-transmitting plate 13 to operate the light-transmitting plate 13 , holding the holding portion 135 to operate the light-transmitting plate 13 may simplify the operation.

[0072] In some embodiments, please refer again to Figure 8 The lighting fixture 1 further includes a stopper 16 and a heat sink 18, the heat sink 18 is provided with a peripheral side wall 181 and a mounting plate 182, the peripheral side wall 181 is connected to the peripheral edge of the mounting plate 182 to form a mounting groove 183, the light-emitting board 11 and the light-transmitting board 13 are mounted in the mounting groove 183, wherein the light-transmitting board 13 is located on the side of the light-emitting board 11 away from the heat sink 18. Please refer to Fig.11 and Fig.12 , Fig.11 for Figure 7 A top view of Fig.12 for Fig.11The partial enlarged schematic diagram at XI. The limiting member 16 is located on the side of the light-transmitting plate 13 away from the light-emitting plate 11, one end of the limiting member 16 is connected to the peripheral side wall 181, and the other end abuts against the surface of the light-transmitting plate 13 away from the light-emitting plate 11, so as to limit the light-transmitting plate 13 from being separated from the rotating shaft 12.

[0073] In some embodiments, a limit portion 136 is provided at an edge of the light-transmitting plate 13 on a side away from the light-emitting plate 11. In this embodiment, the limit portion 136 is an indicating arrow for indicating the rotation direction of the light-transmitting plate 13. The limit portion 136 cooperates with the limit member 16, for example, the limit member 16 can be snapped at the middle position of the limit portion 136, and the rotational movement of the light-transmitting plate 13 relative to the light-emitting plate 11 can be limited.

[0074] For some examples, please refer to Fig.11 A first identification portion 137 is provided on a side of the light-transmitting plate 13 away from the light-emitting plate 11 , and a second identification portion 185 is provided on the peripheral side wall 181 . When the first identification portion 137 and the second identification portion 185 are aligned, the light-transmitting plate 13 can be plugged into the rotating shaft 12 .

[0075] Therefore, it becomes easier to insert the light-transmitting plate 13 into the rotating shaft 12 through the first identification portion 137 and the second identification portion 185 .

[0076] In some embodiments, please refer again to Figure 8 The heat sink 18 also includes a shell 186 and a plurality of heat dissipation fins 188. The shell 186 is columnar, and the peripheral side wall 181 is located on the inner side of the shell 186. The peripheral side wall 181 and the shell 186 are spaced apart. The plurality of heat dissipation fins 188 are spaced apart and connected between the shell 186 and the peripheral side wall 181. The plurality of heat dissipation fins 188 also extend to the side of the mounting plate 182 away from the light-emitting panel 11.

[0077] Thus, the outer shell 186 is a hollow annular ring, the outer diameter of the mounting plate 182 is smaller than the inner diameter of the outer shell 186, the peripheral side wall 181 is located in the annular ring of the outer shell 186, the peripheral side wall 181 and the outer shell 186 are spaced apart to form an annular groove channel 189, each of the heat dissipation fins 188 is connected between the inner side wall of the outer shell 186 and the peripheral side wall 181 and extends to the side of the mounting plate 182 away from the light-emitting panel 11, and the plurality of heat dissipation fins 188 are spaced apart along the circumference of the mounting plate 182 with the center of the heat sink 18 as the center.

[0078] Thus, the heat generated by the light-emitting panel 11 is conducted through the heat dissipation fins 188 to the portion of the heat dissipation fins 188 located in the annular groove channel 189. The annular groove channel 189 has an upward space with a vertical slope, which is equivalent to a chimney. Therefore, the chimney effect can be used to allow air to pass through the annular groove channel 189 from the bottom of the lighting fixture 1 and flow out from the top of the annular groove channel 189. The heat generated by the light-emitting panel 11 absorbed by the heat dissipation fins 188 is conducted through the heat dissipation fins 188 to the portion of the heat dissipation fins 188 located in the annular groove channel 189, and then carried away by the air flow in the annular groove channel 189. Since the annular groove channel 189 can form a chimney effect, the air convection speed in the annular groove channel 189 will be enhanced, thereby accelerating the heat dissipation speed.

[0079] In some embodiments, a through hole 187 is provided at the center of the heat sink 18 . The lighting fixture 1 also includes a power supply 19 . The power supply 19 is installed on a side of the mounting plate 182 away from the light-emitting panel 11 and is spaced apart from the plurality of heat sink fins 188 .

[0080] Thus, the through hole 187 can realize the flow of air from one side of the heat sink 18 to the other side of the heat sink 18 through the through hole 187. Since the power supply 19 is installed on the side of the mounting plate 182 away from the light-emitting panel 11 and is spaced apart from the plurality of heat sink fins 188, the air flow space between the power supply 19 and the heat sink 18 can be increased, thereby reducing wind resistance and further increasing the flow rate from one side of the heat sink 18 to the other side of the heat sink 18 through the through hole 187.

[0081] In some embodiments, the heat dissipation fins 188 adopt a wave-shaped heat dissipation tooth design, which can further reduce wind resistance, increase air circulation, and achieve better heat dissipation effects.

[0082] In some embodiments, the heat sink fins 188 are copper sheet structures connected to the mounting plate 182 of the heat sink 18 by welding. It is understood that in other embodiments, the heat sink fins 188 are integrally formed by aluminum extrusion die casting together with other structural components of the heat sink 18.

[0083] In some embodiments, the heat sink fins 188 and the housing 186 are connected to each other by snapping.

[0084] In some embodiments, the light-transmitting plate 13 is provided with a connection port 139, the connection port 139 passes through the second mounting portion 132 and the gripping portion 135, and the lighting fixture 1 further includes a communication module 17, which is mounted on the connection port 139. The communication module 17 may be provided with different types of wireless communication circuits, such as one or more combinations of WIFI, infrared transceiver module, ZigBee (Purple Bee Protocol), and Bluetooth. The communication module 17 may also be provided with a microwave sensor, an infrared human body detection sensor, an ambient light sensor, etc., to achieve intelligent control.

[0085] The technical solution and corresponding details of the present application are introduced above. It can be understood that the above introduction is only some implementation plans of the technical solution of the present application, and some details may be omitted during the specific implementation.

[0086] In addition, in some embodiments of the above utility model, multiple embodiments may be implemented in combination, and various combination schemes are not listed one by one due to space limitations. Those skilled in the art can freely combine the above embodiments according to their needs during specific implementation to obtain a better application experience.

[0087] In summary, it can be seen that the present application has the above-mentioned excellent characteristics, which can enhance the performance unprecedented in the prior art and become a product with great practical value.

[0088] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions or improvements made within the ideas and principles of the present application should be included in the protection scope of the present application.

Claims

1. A lighting fixture, characterized in that: include: Light-emitting panels; A rotating shaft, the rotating shaft is installed on the light emitting side of the light emitting panel; A light-transmitting plate, which is located at the light-emitting side of the light-emitting plate and is rotatably connected to the rotating shaft; the light emitted by the light-emitting plate is emitted after passing through the light-transmitting plate; When the light-transmitting plate is driven to rotate around the central axis of the rotating shaft, the distance between the light-transmitting plate and the luminous plate changes, and the light emission angle of the light emitted by the luminous plate after passing through the light-transmitting plate changes accordingly.

2. The lighting fixture according to claim 1, characterized in that: A plurality of spiral grooves are provided on the peripheral wall of the rotating shaft, and the lighting fixture includes a plurality of connectors, which are arranged in one-to-one correspondence with the plurality of spiral grooves. Each of the connectors includes a first end and a second end that are relatively arranged, and the first end of each connector is connected to the light-transmitting plate, and the second end of each connector is inserted into the corresponding spiral groove and can slide in the spiral groove following the rotational movement of the light-transmitting plate.

3. The lighting fixture according to claim 2, characterized in that: At least two limit points are provided in the spiral groove, and the at least two limit points are arranged at intervals in the spiral groove along the spiral direction of the spiral groove. When the connector is engaged with different limit points in the spiral groove, the distance between the light-transmitting plate and the light-emitting plate is different, and the light emitted by the light-emitting plate has different light emission angles after passing through the light-transmitting plate.

4. The lighting fixture according to claim 3, characterized in that: The spiral groove comprises a spiral portion, and the at least two limiting points are arranged in the spiral portion.

5. The lighting fixture according to claim 4, characterized in that: The spiral groove also includes a transition portion and an insertion portion, the transition portion connects the spiral portion and the insertion portion, the rotating shaft also includes an end surface away from the light-emitting board, and the insertion portion extends from the peripheral wall of the rotating shaft and passes through the end surface of the rotating shaft.

6. The lighting fixture according to claim 5, characterized in that: The opening size of the insertion portion on the end surface of the rotating shaft is larger than the outer diameter of the second end of the connector.

7. The lighting fixture according to claim 5, characterized in that: The spiral portion includes a first side wall surface close to the end surface, and a stop portion is formed on one end of the spiral portion close to the transition portion. The stop portion is adjacent to the opening of the insertion portion and protrudes from the first side wall surface toward a side away from the end surface.

8. The lighting fixture according to claim 5, characterized in that: The spiral portion includes a first side wall surface close to the end surface, and the spiral portion also includes a second side wall surface away from the end surface. A convex ring is provided on the second end of the connector, and the convex ring cooperates with the first side wall surface and the second side wall surface of the spiral portion respectively.

9. The lighting fixture according to claim 2, characterized in that: The light-transmitting plate includes a light-transmitting portion and a mounting portion, wherein the light-transmitting portion surrounds the mounting portion, and the mounting portion is recessed relative to the light-transmitting portion toward a side away from the light-emitting plate to form a groove, and a plurality of mounting holes are provided on the inner side wall of the groove, and the first ends of the plurality of connectors are respectively connected to the plurality of mounting holes.

10. The lighting fixture according to claim 9, characterized in that: The light-transmitting plate also includes a holding portion, which includes a first protrusion and a second protrusion. The first protrusion is formed by a position of the mounting portion corresponding to the groove protruding relative to the light-transmitting portion toward a side away from the light-emitting plate, and the second protrusion is formed by a position on the mounting portion corresponding to the mounting hole protruding toward a radial direction away from the mounting portion.

11. The lighting fixture according to any one of claims 2 to 10, characterized in that: The lighting fixture also includes a limiting member and a heat sink, the heat sink includes a peripheral side wall and a mounting plate, the peripheral side wall surrounds the mounting plate to form a mounting groove, the light-emitting board and the light-transmitting board are installed in the mounting groove, the light-transmitting board is located on the side of the light-emitting board away from the heat sink, the limiting member is located on the side of the light-transmitting board away from the light-emitting board, and one end of the limiting member is connected to the peripheral side wall, and the other end abuts against the surface of the light-transmitting board on the side away from the light-emitting board.

12. The lighting fixture according to claim 11, characterized in that: A limiting portion is provided at an edge of the light-transmitting plate on a side away from the light-emitting plate, and the limiting portion cooperates with the limiting member to limit the rotational movement of the light-transmitting plate relative to the light-emitting plate.

13. The lighting fixture according to claim 10, characterized in that: The light-transmitting plate is provided with a connection port, and the connection port passes through the mounting portion and the holding portion. The lighting fixture further comprises a communication module, and the communication module is mounted on the connection port.

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