CN219867570U

CN219867570U - LED lamp

Info

Publication number: CN219867570U
Application number: CN202321160982.1U
Authority: CN
Inventors: 邓冰
Original assignee: Guangdong Practical Smart Lighting Co ltd
Current assignee: Guangdong Practical Smart Lighting Co ltd
Priority date: 2023-05-12
Filing date: 2023-05-12
Publication date: 2023-10-20
Anticipated expiration: 2033-05-12

Abstract

The utility model provides an LED lamp, which comprises a lamp shell and an LED lighting assembly arranged in the lamp shell, wherein the LED lighting assembly comprises a circuit board, an LED lamp bead and a lamp cup which are arranged on the circuit board, the circuit board is fixedly connected with the lamp shell, the lamp cup is provided with a light inlet, a light outlet and an inner cavity which is communicated with the light inlet and the light outlet, and a reflecting layer is arranged on the wall of the inner cavity; the diameter of the light outlet is larger than that of the light inlet, the inner cavity is of a truncated cone-shaped structure with gradually widened diameter from one side close to the light inlet to one side close to the light outlet along the axial direction of the lamp cup, and the central axis of the inner cavity penetrates through the centers of the light inlet and the light outlet; the lamp cup is fixed on the circuit board in the one end that is close to the inlet, and LED lamp pearl sets up in inlet department. The LED lamp provided by the utility model can effectively reduce the astigmatism rate of the LED light source and improve the brightness, thereby remarkably improving the irradiation effect when a long-distance target is irradiated, and being beneficial to saving the power consumption.

Description

LED lamp

Technical Field

The utility model relates to the technical field of LED lamps, in particular to an LED lamp.

Background

Along with the continuous breakthrough of LED (Light Emitting Diode) technology, the LED lamp is widely applied to various different scenes such as industrial plants, ports and wharfs, production workshops, super suppliers, sports casinos, warehouses and the like.

As shown in fig. 1 and 2, a conventional LED lamp (especially, an industrial and mining lamp) generally includes a lamp housing 81 and an LED lighting assembly 82 disposed in the lamp housing 81, wherein the LED lighting assembly 82 includes a circuit board (not numbered), and an LED lamp bead (not numbered) and a lamp cup 821 disposed on the circuit board, and the lamp cup 821 covers the LED lamp bead. The lamp cup 821 plays roles in condensing and brightening, and light emitted by the LED lamp beads can be guided out of the lamp housing 81 after being reflected by the inner wall of the lamp cup 821, so that the purpose of illumination is achieved. Meanwhile, a screw hole (not shown) is provided at the top of the lamp housing 81, and the lamp housing 81 and an external device 83 (the external device 83 is not limited to heavy machinery, a bracket, etc., and may be fixed and connected by a bolt 84 when the LED lamp is installed.

However, the drawbacks of the above-described LED luminaire include: (1) As shown in fig. 1 and 2, the inner wall of the conventional lamp cup 821 is generally in a curve-shaped or parabolic structure (i.e., the inner cavity of the lamp cup 821 is bowl-shaped, and the generatrix of the cavity wall of the inner cavity of the lamp cup 821 is curve-shaped), and the light is severely dispersed to the circumference after multiple reflections on the inner wall of the lamp cup 821, i.e., the light is highly dispersed in the lamp cup 821, so that when the LED lamp irradiates a remote target, the light reaching the target is darker and the effect is poor. (2) The threaded hole on the lamp housing 81 is vertically arranged, so that a bolt 84 for connecting the lamp housing 81 and an external device 83 is also vertically arranged; in some special applications, for example, when the LED lamp is mounted on a heavy machine, the heavy machine can generate larger vibration (generally up-down vibration) during working, under the working environment of long-term vibration, the bolt 84 is easy to be released from the threaded hole gradually due to the up-down vibration force, if the bolt 84 is not found to be released in time, the LED lamp can drop from the heavy machine, not only the LED lamp can be damaged, but also a serious safety hazard can be caused to staff working below the lamp.

Disclosure of Invention

The utility model provides an LED lamp, which aims to solve the problems of high light scattering rate of a lamp cup in the existing LED lamp, darker light reaching a target and poor effect when a long-distance target is irradiated.

The utility model provides an LED lamp, which comprises a lamp shell and an LED lighting assembly arranged in the lamp shell, wherein the LED lighting assembly comprises a circuit board, an LED lamp bead and a lamp cup, wherein the LED lamp bead and the lamp cup are arranged on the circuit board; the diameter of the light outlet is larger than that of the light inlet, the inner cavity is of a truncated cone-shaped structure with gradually widened diameter from one side close to the light inlet to one side close to the light outlet along the axial direction of the lamp cup, and the central axis of the inner cavity penetrates through the center of the light inlet and the center of the light outlet; the lamp cup is fixed on the circuit board at one end close to the light inlet, and the LED lamp beads are arranged at the light inlet.

Further, the included angle between the generatrix of the inner cavity and the central axis is 10-55 degrees, and the height of the inner cavity is 7.5-14.5 mm.

Further, the diameter of the light outlet is 16.5 mm-19.5 mm, and the diameter of the light inlet is 4.5 mm-6.5 mm.

Further, sun-drying grains are arranged on the surface of the reflecting layer.

Further, a containing cavity is formed in the lamp housing, the LED lighting assembly is arranged in the containing cavity, a light through hole is formed in the lamp housing at a position corresponding to the LED lighting assembly, and the light through hole is communicated with the containing cavity; the transparent cover plate is arranged at the light passing hole and connected with the lamp housing, and the transparent cover plate covers the light passing hole.

Further, the transparent cover plate is made of transparent glass material, and an antireflection film is arranged on the surface of at least one side of the transparent cover plate.

Further, the anti-reflection films are arranged on the surfaces of the two opposite sides of the transparent cover plate.

Further, a threaded mounting hole is formed in the lamp housing, and the threaded mounting hole is used for connecting the lamp housing with an external device through a bolt; the screw thread mounting hole set up in on the lateral wall of lamp body, just the screw thread mounting hole is seted up along the horizontal direction.

Further, a plurality of thread installation holes are formed in the side wall of the lamp housing, and the thread installation holes are arranged at intervals along the circumferential direction of the lamp housing.

Further, the lamp housing comprises a connecting part and a mounting part, wherein the connecting part is positioned above the mounting part and is connected with the mounting part; the LED lighting assembly is arranged in the mounting part, and the threaded mounting hole is formed in the connecting part.

According to the LED lamp provided by the utility model, the inner cavity of the lamp cup is of the circular truncated cone-shaped structure, namely, the generatrix of the inner cavity is of the linear structure, compared with the existing lamp cup with the bowl-shaped inner cavity and the curved generatrix of the cavity wall, the LED lamp can effectively reduce the astigmatism rate of an LED light source and improve the brightness, so that the irradiation effect when a long-distance target is irradiated is obviously improved, and the power consumption is saved.

Drawings

Fig. 1 is a schematic cross-sectional view of a prior art LED lamp.

Fig. 2 is a schematic cross-sectional view of the lamp cup of fig. 1.

Fig. 3 is a schematic cross-sectional view of an LED lamp according to an embodiment of the present utility model.

Fig. 4 is a schematic perspective view of the lamp cup in fig. 3.

Fig. 5 is a bottom view of fig. 4.

Fig. 6 is a schematic cross-sectional view of fig. 4.

Fig. 7 is a schematic structural view of the transparent cover plate in fig. 3.

Fig. 8 is a schematic diagram of a connection structure between an LED lamp and an external device in an embodiment of the present utility model.

Detailed Description

The following describes in further detail the embodiments of the present utility model with reference to the drawings and examples. The following examples are illustrative of the utility model and are not intended to limit the scope of the utility model.

The terms "first," "second," "third," "fourth" and the like in the description and in the claims, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order.

The terms upper, lower, left, right, front, rear, top, bottom and the like (if any) in the description and in the claims are used for descriptive purposes and not necessarily for describing relative positions of structures in the figures and in describing relative positions of structures. It should be understood that the use of directional terms should not be construed to limit the scope of the utility model as claimed.

As shown in fig. 3, the LED lamp provided by the embodiment of the utility model includes a lamp housing 1 and an LED lighting assembly 2 disposed in the lamp housing 1, the LED lighting assembly 2 includes a circuit board 21, and LED beads 22 (i.e., light emitting diodes) and a lamp cup 23 disposed on the circuit board 21, the LED beads 22 are electrically connected with the circuit board 21, the circuit board 21 is fixedly connected with the lamp housing 1, and the lamp cup 23 is disposed corresponding to the LED beads 22 and covers the LED beads 22.

As shown in fig. 3 to 6, the lamp cup 23 has a light inlet 231, a light outlet 232, and an inner cavity 230 communicating the light inlet 231 and the light outlet 232, and a reflective layer 233 having a uniform thickness is provided on a wall of the inner cavity 230. The light reflecting layer 233 may be an aluminum light reflecting layer or a silver light reflecting layer, etc., and the light reflecting layer 233 may be formed on the wall of the inner cavity 230 by electroplating. The light inlet 231 and the light outlet 232 are respectively positioned at two opposite ends of the lamp cup 23, the light inlet 231 and the light outlet 232 are of circular structures, and the diameter of the light outlet 232 is larger than that of the light inlet 231. The inner cavity 230 is a truncated cone-shaped structure with a gradually widened diameter from one side close to the light inlet 231 to one side close to the light outlet 232 along the axial direction of the lamp cup 23 (namely, the light inlet 231 is equivalent to the upper bottom surface of the truncated cone, the light outlet 232 is equivalent to the lower bottom surface of the truncated cone, the cavity wall of the inner cavity 230 is equivalent to the side surface of the truncated cone), the central axis of the inner cavity 230 passes through the center of the light inlet 231 and the center of the light outlet 232 (namely, the light inlet 231, the light outlet 232 and the inner cavity 230 are coaxially arranged), and the bus of the inner cavity 230 is a linear structure. The lamp cup 23 is fixed on the circuit board 21 at one end close to the light inlet 231, and the LED lamp beads 22 are arranged at the light inlet 231.

Specifically, when the LED lamp bead 22 is powered on during operation, a part of light emitted by the LED lamp bead 22 is directly emitted out of the lamp cup 23 through the light outlet 232, and another part of light is reflected by the reflecting layer 233 and then emitted out of the lamp cup 23 through the light outlet 232, and finally the light emitted from the inside of the lamp cup 23 is LED out of the lamp housing 1, so that the purpose of illumination is achieved. Because the inner cavity 230 of the lamp cup 23 is in a circular truncated cone-shaped structure, that is, the bus of the inner cavity 230 is in a linear structure, light can be collected to the middle of the lamp cup 23 after being reflected by the reflecting layer 233 on the cavity wall of the inner cavity 230, the reflection times are reduced, multiple reflections are not needed (if the inner wall of the lamp cup is in an arc-shaped or parabolic structure, part of light can be reflected on the inner wall of the lamp cup for multiple times, the intensity of the light can be lost after each reflection, so that the brightness of the light can be reduced after multiple reflections, the light can be scattered everywhere, and the brightness and the convergence degree of the light are finally influenced), the gathering degree of the light is improved, the astigmatism rate and the light loss are reduced, the brightness of the LED light source when the LED light source irradiates a long-distance target is obviously improved, and the irradiation effect is optimized.

Specifically, in the LED lamp provided in this embodiment, the inner cavity 230 of the lamp cup 23 has a circular truncated cone structure, that is, the busbar of the inner cavity 230 has a linear structure, which can effectively reduce the astigmatism rate of the LED light source and improve the brightness, thereby significantly improving the irradiation effect when irradiating a remote target, and being beneficial to saving the power consumption, compared with the existing lamp cup in which the inner cavity has a bowl shape and the busbar of the cavity wall has a curve.

Further, as shown in fig. 6, in the present embodiment, the included angle a between the bus bar of the inner cavity 230 and the central axis is 10 ° to 55 °, and the height H of the inner cavity 230 (i.e. the distance between the light inlet 231 and the light outlet 232) is 7.5mm to 14.5mm. By limiting the included angle a between the generatrix of the lumen 230 and the central axis and the height H of the lumen 230 to the above-described ranges, the astigmatism rate can be significantly reduced.

Preferably, the included angle a between the generatrix of the inner cavity 230 and the central axis is 15 to 50 degrees, and the height H of the inner cavity 230 is 9.5 to 10.5mm.

Further, in the present embodiment, the diameter of the light outlet 232 is 16.5mm to 19.5mm, and the diameter of the light inlet 231 is 4.5mm to 6.5mm. By limiting the diameter of the light outlet 232 and the diameter of the light inlet 231 to the above-described ranges, the astigmatism rate can be further reduced.

Further, in the present embodiment, a sun print (not shown) is disposed on the surface of the light reflecting layer 233, and the sun print may be formed by etching the surface of the light reflecting layer 233 with a chemical agent (such as sulfuric acid, nitric acid, etc.). The sun print can be in a fish scale structure, the sun print can improve the reflection effect of the reflecting layer 233 and reduce the light loss, so that the light emitting rate of the LED light source is improved, and a better irradiation effect is obtained when a long-distance target is irradiated.

Further, as shown in fig. 3, in the present embodiment, a housing cavity 100 is provided in the lamp housing 1, the LED lighting assembly 2 is disposed in the housing cavity 100, and a light through hole 101 is provided on the lamp housing 1 at a position corresponding to the LED lighting assembly 2, where the light through hole 101 is communicated with the housing cavity 100. The transparent cover plate 3 is arranged at the light-passing hole 101, the transparent cover plate 3 is connected with the lamp housing 1, and the transparent cover plate 3 covers the light-passing hole 101.

Further, as shown in fig. 7, in the present embodiment, the transparent cover plate 3 is made of transparent glass material, and an antireflection film 31 is provided on at least one surface of the transparent cover plate 3. The antireflection film 31 may be formed on the surface of the transparent cover plate 3 by vacuum plating, vapor deposition, or the like. The material of the antireflection film 31 may be silica, titania, or the like.

Specifically, when in operation, the light emitted from the LED lamp beads 22 is LED out of the lamp cup 23, and finally transmitted through the transparent cover plate 3 and then emitted from the light-passing hole 101. The transparent cover plate 3 can seal and cover the light through hole 101, thereby preventing external moisture, dust, etc. from entering the lamp housing 1. However, since the transparent cover plate 3 affects the transmittance of light and reduces the brightness of light, in this embodiment, the transparent cover plate 3 is made of transparent glass, and the transmittance of transparent glass is better than that of transparent plastic; meanwhile, by providing the antireflection film 31 on the surface of the transparent cover plate 3, the antireflection film 31 has the effects of reducing or eliminating the reflected light of the optical surface such as a lens, a prism, a plane mirror and the like and increasing the light transmission quantity of the optical element (namely, the antireflection film 31 can reduce the reflected light and increase the transmitted light), so that the light transmittance of the transparent cover plate 3 can be increased by providing the antireflection film 31 on the surface of the transparent cover plate 3 (according to the test, the light transmittance of the transparent cover plate 3 can reach 97% or more, and the light transmittance of a common transparent cover plate is generally lower than 95%), thereby reducing the loss of the transparent cover plate 3 to light as much as possible and further increasing the brightness of the LED lamp.

Further, as shown in fig. 7, in the present embodiment, antireflection films 31 are provided on the surfaces of the opposite sides of the transparent cover plate 3, so that the light transmittance of the transparent cover plate 3 is increased as much as possible.

Further, as shown in fig. 3 and 8, in the present embodiment, the lamp housing 1 is provided with a threaded mounting hole 111, and the threaded mounting hole 111 is used for connecting the lamp housing 1 and an external device 5 (the external device 5 is not limited to heavy machinery, a bracket, etc., and may be determined according to actual use situations) through a bolt 4. The screw mounting hole 111 is provided on a side wall of the lamp housing 1, and the screw mounting hole 111 is opened in a horizontal direction X.

Specifically, when the LED lamp is mounted to the external device 5, since the inner wall of the screw mounting hole 111 has an internal screw thread (not shown), the lamp housing 1 is fixed to the external device 5 by screwing the bolt 4 into the screw mounting hole 111 through the external device 5 and screwing the bolt into the inner wall of the screw mounting hole 111. Since the screw mounting hole 111 is opened in the horizontal direction X, the bolt 4 is also installed in the horizontal direction X; when the external device 5 vibrates, the bolt 4 cannot easily loosen from the screw mounting hole 111 after being subjected to the up-and-down vibration force, so that the LED lamp is prevented from falling off the external device 5 to be damaged, and the potential safety hazard to workers working below the lamp is eliminated.

Further, as shown in fig. 3, in the present embodiment, a plurality of screw mounting holes 111 are provided on the side wall of the lamp housing 1, and the plurality of screw mounting holes 111 are provided at intervals along the circumferential direction of the lamp housing 1.

Further, as shown in fig. 3, in the present embodiment, two screw mounting holes 111 are provided on the side wall of the lamp housing 1, and the two screw mounting holes 111 are provided on opposite sides of the lamp housing 1, respectively. Of course, in other embodiments, the number of threaded mounting holes 111 may be greater.

Further, as shown in fig. 3, in the present embodiment, the lamp housing 1 includes a connection portion 11 and a mounting portion 12, and the connection portion 11 is located above the mounting portion 12 and is connected to the mounting portion 12. The LED lighting assembly 2 is disposed in the mounting portion 12, and the screw mounting hole 111 is disposed on the connecting portion 11.

Further, as shown in fig. 3, in the present embodiment, the connection portion 11 and the mounting portion 12 are of an integral structure. Of course, in other embodiments, the connecting portion 11 and the mounting portion 12 may be separate structures, and the two may be fixed by welding, screwing, or the like.

According to the LED lamp provided by the embodiment of the utility model, the inner cavity 230 of the lamp cup 23 is of the circular truncated cone-shaped structure, namely, the bus of the inner cavity 230 is of the linear structure, compared with the existing lamp cup with the bowl-shaped inner cavity and the curved bus of the cavity wall, the LED lamp can effectively reduce the astigmatism rate of an LED light source and improve the brightness, so that the irradiation effect when a long-distance target is irradiated is remarkably improved, and the power consumption is saved. Meanwhile, the light transmittance of the transparent cover plate 3 can be increased by arranging the anti-reflection film 31 on the surface of the transparent cover plate 3, so that the loss of the transparent cover plate 3 to light is reduced as much as possible, and the brightness of the LED lamp is further increased. Meanwhile, the threaded mounting hole 111 is formed in the horizontal direction X, when the external device 5 vibrates, the bolt 4 cannot easily loose from the threaded mounting hole 111 after being subjected to the action of vertical vibration force, so that the LED lamp is prevented from falling off from the external device 5 to cause damage, and potential safety hazards to workers working below the lamp are eliminated.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a LED lamps and lanterns, includes lamp body (1) and set up in LED lighting assembly (2) in lamp body (1), LED lighting assembly (2) include circuit board (21) and set up in LED lamp pearl (22) and lamp cup (23) on circuit board (21), circuit board (21) with lamp body (1) fixed connection, lamp cup (23) will LED lamp pearl (22) cover, characterized in that, lamp cup (23) have light inlet (231), light outlet (232) and intercommunication light inlet (231) with inner chamber (230) of light outlet (232), be equipped with reflector layer (233) on the chamber wall of inner chamber (230); the diameter of the light outlet (232) is larger than that of the light inlet (231), the inner cavity (230) is of a truncated cone-shaped structure with gradually widened diameter from one side close to the light inlet (231) to one side close to the light outlet (232) along the axial direction of the lamp cup (23), and the central axis of the inner cavity (230) passes through the center of the light inlet (231) and the center of the light outlet (232); the lamp cup (23) is fixed on the circuit board (21) at one end close to the light inlet (231), and the LED lamp beads (22) are arranged at the light inlet (231).

2. The LED luminaire of claim 1, characterized in that the included angle (a) between the generatrix of the inner cavity (230) and the central axis is 10-55 °, and the height (H) of the inner cavity (230) is 7.5-14.5 mm.

3. The LED luminaire of claim 1, wherein the diameter of the light outlet (232) is 16.5 mm-19.5 mm and the diameter of the light inlet (231) is 4.5 mm-6.5 mm.

4. The LED luminaire of claim 1, wherein the reflective layer (233) has a sun print on a surface thereof.

5. The LED lamp according to claim 1, wherein a containing cavity (100) is arranged in the lamp housing (1), the LED lighting assembly (2) is arranged in the containing cavity (100), a light through hole (101) is arranged on the lamp housing (1) at a position corresponding to the LED lighting assembly (2), and the light through hole (101) is communicated with the containing cavity (100); the transparent cover plate (3) is arranged at the position of the light passing hole (101), the transparent cover plate (3) is connected with the lamp housing (1), and the transparent cover plate (3) covers the light passing hole (101).

6. The LED lamp according to claim 5, wherein the transparent cover plate (3) is made of transparent glass material, and an antireflection film (31) is provided on a surface of at least one side of the transparent cover plate (3).

7. The LED lamp according to claim 6, wherein the anti-reflection films (31) are provided on the surfaces of the opposite sides of the transparent cover plate (3).

8. The LED lamp according to claim 1, wherein the lamp housing (1) is provided with a threaded mounting hole (111), and the threaded mounting hole (111) is used for connecting the lamp housing (1) and an external device (5) through a bolt (4); the threaded mounting hole (111) is formed in the side wall of the lamp housing (1), and the threaded mounting hole (111) is formed in the horizontal direction (X).

9. The LED lamp according to claim 8, wherein a plurality of said screw mounting holes (111) are provided on a side wall of said lamp housing (1), and a plurality of said screw mounting holes (111) are provided at intervals along a circumferential direction of said lamp housing (1).

10. The LED luminaire of claim 8, characterized in that the lamp housing (1) comprises a connection portion (11) and a mounting portion (12), the connection portion (11) being located above the mounting portion (12) and being connected to the mounting portion (12); the LED lighting assembly (2) is arranged in the mounting part (12), and the threaded mounting hole (111) is arranged on the connecting part (11).