A special-shaped lamp

Abstract

The present application relates to the technical field of lamps, and in particular to a special-shaped lamp, which includes a mounting portion and a light-emitting portion, wherein the mounting portion is open, the light-emitting portion is provided with a curved surface segment, and the inner side of the curved surface segment faces the open side of the mounting portion, the light-emitting portion covers the projection surface of the mounting portion on the projection surface of the mounting surface, and a light source is provided in the mounting portion, and the light of the light source faces the light-emitting portion. In addition to allowing part of the light to pass through for direct illumination, the curved surface segment provided in the present application also reflects part of the light to change its original propagation path, so that the light propagates toward the mounting surface of the lamp, and the light is irradiated on the mounting surface, eliminating the shadow area caused by the directional setting of the light source and the shielding of the opaque mounting portion, thereby avoiding the occurrence of the "darkness under the lamp" phenomenon and achieving comprehensive lighting.

Description

Technical Field

[0001] The present application relates to the technical field of lamps, and in particular to a special-shaped lamp. Background Art

[0002] The lamp body of an existing lamp generally includes a mounting portion and a light output portion. The outer shell corresponding to the mounting portion is generally made of non-light-transmitting material, which can hide the structure of the lamp power supply and is more beautiful. The light-transmitting cover corresponding to the light output portion is generally made of light-transmitting material, and the light source is installed in a shell surrounded by the light-transmitting cover and the outer shell. The line from the light source position to the junction where the light-transmitting cover and the outer shell material change is the shade line. The projection area of ​​the extended line of the shade line on the mounting surface of the lamp is the shadow area where the light of the light source is blocked by the outer shell and cannot be illuminated, which is the so-called "darkness under the lamp" phenomenon. In order to increase the brightness, the light source often controls the light emission angle to focus the light, and is arranged in a directional manner, which further reduces the light irradiating the shadow area and aggravates the "darkness under the lamp" phenomenon. Summary of the invention

[0003] In order to avoid the formation of shadow areas on the lamp installation surface as much as possible, reduce the occurrence of the "darkness under the lamp" phenomenon, and enable the lamp to achieve comprehensive lighting, the present application provides a special-shaped lamp.

[0004] The present application provides a special-shaped lamp, which adopts the following technical solution:

[0005] A special-shaped lamp comprises a mounting portion and a light emitting portion, wherein the mounting portion is open, the light emitting portion is provided with a curved surface segment, and the inner side of the curved surface segment faces the open side of the mounting portion, the projection surface of the light emitting portion covers the projection surface of the mounting portion on the mounting surface, and a light source is provided in the mounting portion, and the light of the light source faces the light emitting portion.

[0006] By adopting the above technical solution, the formation of shadow areas on the installation surface of the lamp is avoided as much as possible, the occurrence of the "darkness under the lamp" phenomenon is reduced, and the lamp can achieve comprehensive lighting. Specifically, the projection of the arc segment on the installation surface is larger than the projection of the installation part on the installation surface, that is, a reflection channel is left between the arc segment and the installation part for light to pass through. The light emitted by the light source irradiates the arc segment of the light-emitting part. In addition to allowing part of the light to pass through for direct lighting, the arc segment also reflects part of the light to change its original propagation path, so that the light propagates to the installation surface of the lamp. The light irradiates the installation surface, eliminating the shadow area caused by the directional setting of the light source and the shielding of the opaque installation part, thereby avoiding the occurrence of the "darkness under the lamp" phenomenon and achieving comprehensive lighting. In addition, the light irradiating the installation surface is reflected by the installation surface, and the lighting surface is indirectly illuminated. The light of indirect lighting is softer, which can make the entire space environment more comfortable.

[0007] Preferably, an edge line of a maximum divergence angle of light from the light source coincides with an edge line of the arc surface segment of the light emitting portion.

[0008] By adopting the above-mentioned technical solution, the position of the light source ensures that its light is diffused rather than focused after being reflected by the arc surface segment. The arc surface segment of the light output portion totally reflects the light emitted by the light source and effectively guides and controls the light, ensuring that the arc surface segment can reflect the reflected light through the reflection channel between the arc surface segment and the mounting portion, and finally reflect it to the area adjacent to the mounting portion on the mounting surface, thereby avoiding the formation of a shadow area.

[0009] Preferably, the light source uses lamp beads, and the lamp beads are distributed in a planar array. The divergence angle of the lamp beads is α, and the line connecting the center of the lamp bead array to the top of the arc segment is the reference line. The length of the reference line is the reference distance H, and the distance from the lamp bead to the center of the array is L and satisfies, where the range of n is {0, 1, 2, 3, 4, 5}.

[0010] By adopting the above-mentioned technical solution, the spacing between the lamp beads is controlled so that the light emitted by the lamp bead array can be evenly irradiated to all parts of the arc segment, thereby making the light emitted from the light-emitting part more uniform, reducing the visual fatigue of people in the lighting scene. Specifically, the light intensity will decay with distance. The vertical distances between the lamp beads and the arc segment on the same plane are different. The lamp beads at the edge of the array are closer, and the light intensity loss is small. The lamp beads at the center of the array are farther away, and the light intensity loss due to distance can be compensated by superimposing the illumination areas of multiple lamp beads. The formula satisfied by the distance L from the lamp bead to the center of the array is an empirical formula, which determines the arrangement relationship between the lamp beads based on the distance H from the center of the lamp bead array to the top of the arc segment and the divergence angle α of the lamp bead itself. Specifically, the number of lamp beads near the center of the array is denser than the number of lamp beads at the edge of the array.

[0011] Preferably, the radius of the arc segment corresponding to the arc segment is R, and the length H of the reference line satisfies The range of a is [1.05,1.10].

[0012] By adopting the above technical solution, the positional relationship between the lamp bead array and the arc segment is determined, and the uniform light intensity at each location of the arc segment is further ensured. Specifically, by controlling the distance between the light source and the arc segment, the size of the overlapping area illuminated by the lamp beads is controlled to avoid the overlapping area being too large or too small, which leads to uneven light intensity distribution on the arc segment and forms a "light spot" or "dark spot" area on the surface of the arc segment, affecting the viewing experience. When the light source is located within a limited range, the light intensity of the overlapping illumination area between the lamp beads is similar to the light intensity of the adjacent illumination area, and it is not easy to produce a "light spot" or "dark spot" area.

[0013] Preferably, a wave pattern is provided on the inner side of the arc surface segment.

[0014] By adopting the above technical solution, the light emitted by the light source is softened. Specifically, the wave pattern acts as a prism during the light propagation process, refracting the light to different angles. This dispersion effect can make the light appear soft, reduce glare and reflection, and provide a more comfortable and natural lighting environment.

[0015] Preferably, the light emitting portion is provided with a convection inlet hole, the mounting portion is provided with a convection outlet hole, a heat conducting portion is provided on the back side of the light source, the heat conducting portion separates the light emitting portion and the mounting portion and is provided with a convection outlet hole.

[0016] By adopting the above technical solution, the light source is cooled. Specifically, the light source will accumulate heat due to the thermal effect of the current during lighting. When the temperature of the light source is too high, the light efficiency will be reduced, the service life will be reduced, and even the surrounding components will be thermally damaged. By respectively setting the convection inlet and convection outlet holes in the light outlet and the mounting part, the air temperature near the light source increases and the density changes, causing natural convection. The hotter air rises and flows out from the convection outlet, while the colder air is replenished from the convection inlet to the mounting part and the light outlet. The air flows through the convection holes during the circulation process, thereby taking away the heat of the light source and achieving heat dissipation.

[0017] Preferably, the heat-conducting part comprises a heat island and a heat dissipation net, the middle part of the heat island is higher than the edge and is arranged on the back side of the lamp bead, and the heat dissipation net is connected to the heat island.

[0018] By adopting the above technical solution, the heat conduction and heat dissipation capacity of the heat conducting part is enhanced. Specifically, the heat island is set on the back side of the lamp bead to effectively absorb the heat generated by the lamp bead when it emits light, and the middle part is higher than the edge, which is in line with the heat generation law that the heat generation in the middle of the lamp bead is large and the heat generation at the edge is low, thereby improving the heat conduction efficiency of the heat island to the lamp bead. The heat exchange area of ​​the heat dissipation net is larger than that of the heat island, and it mainly plays the role of heat dissipation, quickly dissipating the heat absorbed by the heat island, thereby maintaining the normal working temperature of the lamp bead.

[0019] Preferably, the heat dissipation net includes heat dissipation subnets and connecting columns, adjacent heat dissipation subnets are arranged at intervals and connected by the connecting columns, and mesh holes of adjacent heat dissipation subnets are staggered.

[0020] By adopting the above technical solutions, the heat dissipation efficiency of the heat dissipation net is further enhanced. Specifically, the multi-layer heat dissipation subnet increases the heat dissipation surface area of ​​the heat dissipation net; the connecting column not only connects adjacent heat dissipation subnets, but also conducts heat; the mesh holes of the heat dissipation subnet are staggered to form more heat dissipation channels, so that heat can be conducted out through the heat dissipation net faster, which can increase the contact area between the heat dissipation net and the environment and improve the heat dissipation efficiency.

[0021] Preferably, the heat conducting part is provided with a heat conducting pipe, and the heat conducting pipe is connected to the convection flow hole.

[0022] By adopting the above-mentioned technical solution, the air circulation speed of natural convection is accelerated and the heat exchange of the heat transfer part per unit time is increased. Specifically, in the natural convection of the heat pipe, the air duct through which the hot air flows guides the flow direction of the hot air flow, and tries to avoid the disorderly flow of the hot air flow in the installation part, diffuse the distribution of heat in the installation part, reduce the temperature difference, and thus reduce the speed of the natural convection air flow. In addition, the temperature difference at both ends of the heat pipe produces a difference in air density. The heated air flow rises due to its low density and is discharged from the air outlet at the upper end of the heat pipe, forming a stable negative pressure area at the convection flow hole, accelerating the air flow and improving the heat dissipation efficiency.

[0023] Preferably, a guide surface is provided on a side surface of the mounting portion opposite to the heat conducting portion, and the guide surface guides the heated gas flow toward the convection outlet hole.

[0024] By adopting the above technical solution, the heat can be prevented from flowing poorly during convection and accumulating in the installation part, thereby improving the heat transfer efficiency. In addition, the flow direction of the airflow can be further optimized by adjusting the position and angle of the guide surface to ensure that the heat can be fully transferred to the convection outlet.

[0025] In summary, this application includes the following beneficial technical effects:

[0026] Try to avoid forming shadow areas on the lamp installation surface, reduce the occurrence of "darkness under the lamp" phenomenon, and enable the lamp to achieve comprehensive lighting. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present application;

[0028] Figure 2 It is a schematic diagram of the end seat structure of the first embodiment of the present application;

[0029] Figure 3 It is a schematic diagram of the end modification structure of the first embodiment of the present application;

[0030] Figure 4 is a schematic diagram of the lamp body structure of the first embodiment of the present application;

[0031] Figure 5 is a schematic diagram of the lamp body structure of the second embodiment of the present application;

[0032] Figure 6 is a schematic diagram of the heat conduction part structure of the second embodiment of the present application;

[0033] Figure 7 This is a schematic diagram of the heat island and heat dissipation network structure of the second embodiment of the present application;

[0034] Figure 8 It is a schematic diagram of the structure of adjacent heat dissipation subnets in the second embodiment of the present application.

[0035] Explanation of the reference numerals in the accompanying drawings: 1. lamp body; 2. end seat; 3. end cover; 4. end hole; 5. locking male part; 6. locking female part; 7. slot section; 8. slide slot section; 9. handle; 10. mounting part; 11. light output part; 12. plane section; 13. flange; 14. lamp holder; 15. hanging ear; 16. hanging slot; 17. lamp bead; 18. heat conduction part; 19. convection inlet hole; 20. convection outlet hole; 21. convection flow hole; 22. heat pipe; 23. heat island; 24. heat dissipation net; 25. heat dissipation subnet; 26. connecting column; 27. guide surface. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-8 This application is described in further detail.

[0037] Embodiment 1:

[0038] See also Figure 1 to Figure 3 A linear lamp comprises a lamp body 1, an end seat 2 and an end cover 3. The lamp body 1 is linear, and the end seat 2 is fixed at both ends of the lamp body 1. The end seats 2 are provided with end holes 4, which connect the inside of the lamp body 1 with the outside. The inner hole wall of the end hole 4 is formed with a locking male part 5, and the outer wall of the end cover 3 is formed with a locking female part 6. The locking male part 5 and the locking female part 6 together constitute a locking part. The end cover 3 can be installed movably at the end hole 4 by plugging and fitting between the locking male part 5 and the locking female part 6. The end seat 2 and the end cover 3 are installed as a protective cover at both ends of the lamp body 1 as a whole, forming a closed space to protect the various components in the lamp body 1 from being affected by the outside world. When multiple lamps need to be cascaded, no tools are needed. Only the locking male part 5 needs to be separated from the locking female part 6, and the end cover 3 can be removed from the end hole 4, thereby completing quick disassembly and assembly, which improves the convenience and efficiency of lamp installation. In other embodiments, the locking male portion 5 may also be formed on the side of the end cover 3, and the matching locking female portion 6 may also be formed on the hole wall of the end hole 4. This application does not make any limitation as long as the locking function is achieved.

[0039] See also Figure 1 to Figure 3In this embodiment, the locking male part 5 is a protrusion formed on the hole wall of the end hole 4, and the locking female part 6 is a rotary groove opened on the circumferential side of the end cover 3. The rotary groove includes two sections, an entry groove section 7 and a slide groove section 8. The entry groove section 7 is opened along the radial direction of the end cover 3 and has an opening for the protrusion to enter. The slide groove section 8 is arranged along the circumferential direction of the end cover 3. The entry groove section 7 and the slide groove section 8 are connected and perpendicular to each other. When the lamp needs to be installed, it is only necessary to move the end cover 3 to the end hole 4, and then insert the protrusion into the entry groove section 7 of the rotary groove, and then rotate the end cover 3 along the direction of the slide groove section 8 to slide the protrusion to the end of the slide groove section 8, so as to fix the end cover 3. When removing the end cover 3, it is only necessary to slide the protrusion along the slide groove section 8 to the groove section 7, and then push the protrusion out of the groove section 7 to achieve the removal of the end cover 3. Such a design can not only meet the needs of quick disassembly and assembly of the lamp, but also ensure the stable fixation of the end cover 3, and avoid the loosening or falling off of the lamp due to vibration or other external forces.

[0040] See also Figure 1 to Figure 3 A handle 9 is formed on the side of the end cap 3 away from the lamp body 1, and an anti-skid pattern is formed on the surface of the handle 9, and the anti-skid pattern is in the shape of stripes. The setting of the handle 9 not only provides a suitable force point for the installer to rotate the end cap 3, but also increases the force arm of rotation. Under the premise that the torque required for rotation remains unchanged, the force required for rotation is reduced. At the same time, the design of the anti-skid pattern can also increase the friction between the handle 9 and the hand, making the operation more stable and not easy to slip. In this way, the installer can rotate the end cap 3 more easily when disassembling and installing the lamp, reducing the cumbersome and time-consuming operation and improving work efficiency.

[0041] See also Figure 1 to Figure 4The lamp body 1 includes a shell, which can be divided into two parts according to function: a mounting part 10 and a light output part 11. The mounting part 10 is made of an opaque material and the light output part 11 is made of a translucent material. The housing is produced by a two-color extrusion process to complete the one-piece molding. The mounting part 10 is open, and the light output part 11 is located on the side facing the opening of the mounting part 10, wherein the light output part 11 includes a curved surface segment and a plane segment 12, and the plane segment 12 is located on both sides of the curved surface segment and connects the curved surface segment and the mounting part 10, and the curved surface segment covers the projection surface of the mounting part 10 on the projection surface of the mounting surface. A flange 13 is formed on the side of the mounting part 10 close to the mounting surface, and the flange 13 is used to provide a snap-in position for the mounting part to facilitate installation. A lamp holder 14 is installed in the housing, and a hanging ear 15 is formed on the travel of the lamp holder 14. A hanging groove 16 is formed on the inner side of the mounting part 10, and the lamp holder 14 is hung in the hanging groove 16 through the hanging ear 15 to achieve installation in the housing. A light source is installed on the side of the lamp holder 14 close to the light emitting portion 11, and the light of the light source is directed toward the arc segment. The projection of the arc segment on the mounting surface is larger than the projection of the mounting portion 10 on the mounting surface, that is, a reflection channel is left between the arc segment and the mounting portion 10 for the light to pass through. The light emitted by the light source is irradiated to the arc segment of the light emitting portion 11. In addition to allowing part of the light to pass through for direct illumination, the arc segment also reflects part of the light to change its original propagation path, so that the light propagates toward the mounting surface of the lamp. The light is irradiated on the mounting surface, eliminating the shadow area caused by the directional setting of the light source and the shielding of the opaque mounting portion 10, thereby avoiding the occurrence of the "darkness under the lamp" phenomenon and achieving comprehensive lighting. In addition, the light irradiated to the mounting surface is reflected by the mounting surface, and the lighting surface is indirectly illuminated. The light of indirect illumination is softer, which can make the entire space environment more comfortable.

[0042] See also Figure 1 to Figure 4 , the light source adopts an array of LED lamp beads 17, the divergence angle of the lamp beads 17 is α, the array of lamp beads 17 is arranged along the axial direction of the lamp body 1, there is a central axial line in the center of the array of lamp beads 17, the central axial line is coplanar with each lamp bead 17, the arc top of the arc segment forms an arc top line along the axial direction, and the central axial line is coplanar with the arc top line, that is, the arc top of the arc segment is arranged opposite to the center of the array of lamp beads 17. The line connecting the arc top to the center of the array of lamp beads 17 is called the reference line, the length of the reference line is the reference distance H, the distance from each lamp bead 17 to the central axial line is L, where L satisfies The spacing between the lamp beads 17 is controlled by a formula so that the light emitted by the array of lamp beads 17 can be evenly irradiated to all parts of the arc segment, thereby making the light emitted from the light-emitting portion 11 more uniform, reducing the visual fatigue of people in the lighting scene. Specifically, the light intensity will decay with distance, and the vertical distances between the lamp beads 17 and the arc segment on the same plane are different. The lamp beads 17 at the edge of the array are closer, and the light intensity loss is small. The lamp beads 17 at the center of the array are farther away, and the light intensity loss due to distance can be compensated by superimposing the illumination areas of multiple lamp beads 17. The formula satisfied by the distance L from the lamp bead 17 to the center of the array is an empirical formula, which determines the arrangement relationship between the lamp beads 17 based on the distance H from the center of the lamp bead 17 array to the top of the arc segment and the divergence angle α of the lamp bead 17 itself. Specifically, the number of lamp beads 17 near the center of the array is denser than the number of lamp beads 17 at the edge of the array. In this embodiment, the divergence angle of the lamp bead 17 is 110 degrees, H is 4 cm, and n is 1, 2, or 3.

[0043] In order to further ensure that the light intensity is uniform at all locations of the arc segment, this embodiment is further limited. The arc segment radius corresponding to the arc segment is R, and the length of the reference line satisfies R:H=a, where a is in the range of [1.05,1.10], and a in this embodiment is 1.08. R:H=a determines the positional relationship between the array of lamp beads 17 and the arc segment, further ensuring that the light intensity is uniform at all locations of the arc segment. Specifically, by controlling the distance between the light source and the arc segment, the size of the overlapping area illuminated by the lamp beads 17 is controlled to avoid the overlapping area being too large or too small, resulting in uneven light intensity distribution on the arc segment, and forming a "light spot" or "dark spot" area on the surface of the arc segment, affecting the perception. When the light source is located within the limited range, the light intensity of the overlapping illumination area between the lamp beads 17 is similar to the light intensity of the adjacent illumination area, and it is not easy to produce a "light spot" or "dark spot" area.

[0044] The edge line of the arc segment coincides with the edge line of the maximum divergence angle of the array of lamp beads 17, and the array of lamp beads 17 is located between the arc top of the arc segment and the corresponding center of the arc segment where the arc top is located. The position of the light source ensures that its light is diffused rather than focused after being reflected by the arc segment. The arc segment of the light emitting portion 11 fully reflects the light emitted by the light source, and effectively guides and controls the light, ensuring that the arc segment can reflect the reflected light through the reflection channel between the arc segment and the mounting portion 10, and finally reflects it to the area adjacent to the mounting portion 10 on the mounting surface, avoiding the formation of a shadow area.

[0045] In this embodiment, sealing rings (not shown) are installed between the lamp body 1 and the end seat 2 and between the end hole 4 and the end cover 3 to seal the lamp body 1. The end seat 2 is connected to the lamp holder 14 by screws. During the process of tightening the screws, the end seat 2 presses the sealing ring against the lamp body 1, and the end cover 3 also presses the sealing ring against the end seat 2 during the process of screwing into the end hole 4, thereby enhancing the overall sealing of the lamp. In this way, water vapor can be prevented from entering the interior of the lamp body 1, avoiding short circuit damage to electrical components caused by water vapor, and ensuring the service life of the lamp. Secondly, dust or other pollutants can be prevented from entering the interior of the lamp body 1, keeping the interior of the lamp body 1 clean and ensuring that the brightness of the lamp is not affected. In other embodiments, the lamp body 1 and the end seat 2 can be provided with no sealing ring, and instead be bonded with sealant to seal the lamp body 1 and fix the end seat 2.

[0046] Embodiment 2:

[0047] The structure of this embodiment is basically the same as that of the first embodiment, except that:

[0048] See also Figures 4 to 8 , a convection inlet 19 is provided at the junction of the plane section 12 and the arc section of the light-emitting portion 11, and a convection outlet 20 is provided at the hospital wing 13 of the mounting portion 10. A heat-conducting portion 18 is installed on the side of the lamp holder 14 away from the array of lamp beads 17, and the heat-conducting portion 18 separates the light-emitting portion 11 and the mounting portion 10, and a convection flow hole 21 is provided on the lamp holder 14 and the heat-conducting portion 18. During the lighting period, the light source will accumulate heat due to the thermal effect of the current. When the temperature of the light source is too high, the light efficiency and service life will be reduced, and even the surrounding components will be thermally damaged. By respectively providing the convection inlet 19 and the convection outlet 20 in the light-emitting portion 11 and the mounting portion 10, the temperature of the air near the light source increases, the density changes, and natural convection is caused. The hotter air rises and flows out from the convection outlet, while the colder air is supplemented from the convection inlet to the mounting portion 10 and the light-emitting portion 11. During the air circulation process, it flows through the convection flow hole 21, thereby taking away the heat of the light source to achieve heat dissipation.

[0049] See also Figures 4 to 8 The heat conducting part 18 also includes a heat conducting pipe 22, which is connected to the convection flow hole 21. The heat conducting pipe 22 is an air duct through which the hot air flows in natural convection, guides the flow direction of the hot air flow, and tries to avoid the disorderly flow of the hot air flow in the mounting part 10, diffuses the distribution of heat in the mounting part 10, reduces the temperature difference, and thus reduces the speed of the natural convection air flow. In addition, the temperature difference at both ends of the heat conducting pipe 22 produces a difference in air density. The heated air flow rises due to its low density and is discharged from the air outlet at the upper end of the heat conducting pipe 22, forming a stable negative pressure area at the convection flow hole, accelerating the air flow and improving the heat dissipation efficiency.

[0050] See also Figures 4 to 8The heat conducting part 18 includes a heat island 23 and a heat dissipation net 24. The middle of the heat island 23 is higher than the edge and is installed corresponding to the back side of the lamp bead 17. The heat dissipation net 24 is connected to the heat island 23. The heat dissipation net 24 includes a heat dissipation subnet 25 and a connecting column 26. Adjacent heat dissipation subnets 25 are arranged at intervals and connected by connecting columns 26. The meshes of adjacent heat dissipation subnets 25 are staggered. The heat island 23 is arranged on the back side of the lamp bead 17 to effectively absorb the heat generated when the lamp bead 17 emits light. The middle part of the heat island 23 is higher than the edge, which is in accordance with the heating law that the heat generation in the middle of the lamp bead 17 is large and the heat generation at the edge is low, thereby improving the heat conduction efficiency of the heat island 23 to the lamp bead 17. The heat exchange area of ​​the heat dissipation net 24 is larger than that of the heat island 23, and it mainly plays the role of heat dissipation, and quickly dissipates the heat absorbed by the heat island 23, thereby keeping the lamp bead 17 working at a normal temperature. The multi-layer heat dissipation subnets 25 increase the heat dissipation surface area of ​​the heat dissipation net 24; the connecting columns 26 not only connect adjacent heat dissipation subnets 25, but also conduct heat; the mesh holes of the heat dissipation subnets 25 are staggered to form more heat dissipation channels, so that heat can be conducted out through the heat dissipation net 24 faster, which can increase the contact area between the heat dissipation net 24 and the environment and improve the heat dissipation efficiency.

[0051] See also Figures 4 to 8 A guide surface 27 is provided on the side of the mounting portion 10 opposite to the heat conducting portion 18, and the guide surface 27 guides the heated gas to flow toward the convection outlet 20. It is possible to avoid the heat from flowing poorly during the convection process and accumulating in the mounting portion 10, thereby improving the heat transfer efficiency. In addition, the flow direction of the airflow can be further optimized by adjusting the position and angle of the guide surface 27 to ensure that the heat can be fully transferred to the convection outlet 20.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A special-shaped lamp, characterized in that: The device comprises a mounting portion (10) and a light emitting portion (11), wherein the mounting portion (10) is open, the light emitting portion (11) is provided with a curved surface segment, and the inner side of the curved surface segment faces the open side of the mounting portion (10), the light emitting portion (11) covers the projection surface of the mounting portion (10) on the projection surface of the mounting surface, and a light source is provided inside the mounting portion (10), and the light of the light source faces the light emitting portion (11); The edge line of the maximum divergence angle of the light of the light source coincides with the edge line of the arc surface segment of the light emitting portion (11); The light source is a lamp bead (17), the lamp bead (17) is distributed in a planar array, the divergence angle of the lamp bead (17) is α, the line from the center of the array of the lamp bead (17) to the top of the arc segment is a reference line, the length of the reference line is a reference distance H, the distance from the lamp bead (17) to the center of the array is L and satisfies The range of n is {0, 1, 2, 3, 4, 5}; The radius of the arc segment corresponding to the arc surface segment is R, and the length H of the reference line satisfies R:H=a, where a is in the range of [1.05,1.10].

2. The special-shaped lamp according to claim 1, characterized in that: The inner side of the arc surface segment is provided with wave patterns.

3. The special-shaped lamp according to claim 1, characterized in that: The light emitting portion (11) is provided with a convection inlet hole (19), the mounting portion (10) is provided with a convection outlet hole (20), and a heat conducting portion (18) is provided on the back side of the light source, the heat conducting portion (18) separates the light emitting portion (11) and the mounting portion (10) and is provided with a convection outlet hole (21).

4. The special-shaped lamp according to claim 3, characterized in that: The heat conducting part (18) comprises a heat island (23) and a heat dissipation net (24); the middle part of the heat island (23) is higher than the edge and is arranged on the back side of the lamp bead (17); and the heat dissipation net (24) is connected to the heat island (23).

5. The special-shaped lamp according to claim 4, characterized in that: The heat dissipation net (24) comprises heat dissipation subnets (25) and connecting columns (26); adjacent heat dissipation subnets (25) are arranged at intervals and connected via the connecting columns (26); and meshes of adjacent heat dissipation subnets (25) are staggered.

6. The special-shaped lamp according to claim 3, characterized in that: The heat conducting portion (18) is provided with a heat conducting pipe (22), and the heat conducting pipe (22) is connected to the convection flow hole (21).

7. The special-shaped lamp according to claim 3, characterized in that: A flow guide surface (27) is provided on the side surface of the mounting portion (10) opposite to the heat conducting portion (18), and the flow guide surface (27) guides the heated gas flow toward the convection outlet hole (20).

Images