Lamp

Abstract

The utility model discloses a lamp which comprises a shell, a light-transmitting piece, a main supporting frame and a light source device, the light source device comprises an installation substrate and a light-emitting body, the installation substrate is provided with an installation base face used for installing the light-emitting body, and the light-emitting body is configured to emit light rays; the position of the light source device is lifted to the mounting base surface to approach to the upper edge of the shell from bottom to top or upwards exceed the upper edge of the shell, so that the upper edge of the shell is prevented from interfering with lateral light rays emitted by the light source device from the light transmitting part; according to the lamp, light rays of a single light source are laterally diffused, the shell is matched with the light transmitting piece in an avoiding mode, so that light spots formed by the lamp are larger, the uniformity is better, the lighting effect is improved, and the light sensation of the whole space is better.

Description

A type of lamp Technical Field

[0001] This utility model relates to the field of lighting fixtures, and in particular to a lighting fixture. Background Technology

[0002] In the field of interior lighting design, ceiling lights that utilize ceiling diffuse reflection to achieve soft lighting are widely used because they can create a comfortable lighting environment. These ceiling lights do not have a light source that shines directly downwards; the light source only emits upwards, and the light is diffused downwards through the ceiling to illuminate the interior space. However, existing ceiling lights of this type generally suffer from technical bottlenecks in light efficiency and light distribution, making it difficult to meet users' needs for high-quality lighting.

[0003] Traditional ceiling lights based on ceiling diffuse reflection mostly use direct light sources, resulting in uneven light distribution after reflection from the ceiling. Due to the lack of scientific planning in the light source's emission angle and the ceiling reflection path, high-brightness spots are formed where light accumulates, and a large amount of light is concentrated in the area directly below the light fixture, easily causing visual fatigue and failing to provide truly soft lighting. Such ceiling lights are not only glaring but also result in poor overall indoor lighting uniformity. Light in spaces far from the light fixture is lost due to multiple reflections, causing a sharp drop in brightness and leading to generally low lighting uniformity throughout the entire space. Therefore, it is difficult to achieve the ideal diffuse reflection effect of "seeing the light but not the lamp". At the same time, in order to enhance the reflection effect, some products supplement the luminous flux by increasing the power of the light source or increasing the number of light sources, but this not only exacerbates the problem of local glare but also leads to a large amount of light energy wasted due to the absorption and scattering of light by the ceiling.

[0004] Therefore, how to improve luminous efficiency while maintaining a single light source to achieve soft and uniform illumination from diffuse ceiling lights is an industry pain point that urgently needs to be addressed. Summary of the Invention

[0005] To address the aforementioned technical problems, this utility model provides a lamp, including a housing, a light-transmitting element, a main support frame, and a light source device. The light source device includes a circuit board and a light-emitting element. The circuit board has a mounting base for mounting the light-emitting element, and the light-emitting element is configured to emit light. The position of the light source device is raised so that the mounting base approaches or extends beyond the upper edge of the housing from bottom to top, so that the upper edge of the housing avoids interfering with the lateral light emitted from the light-transmitting element by the light source device. This lamp, through lateral diffusion of light from a single light source and the avoidance arrangement between the housing and the light-transmitting element, enables the lamp to form a larger and more uniform light spot, thereby improving luminous efficiency and enhancing the overall lighting effect in the space.

[0006] The technical solution of this utility model is implemented as follows:

[0007] A lighting fixture, comprising:

[0008] The outer casing is located on the outer edge of the lamp, and a light-transmitting element is provided on the outer casing, which protrudes upward from the outer casing;

[0009] The main support frame is housed inside the outer casing and serves as the main support.

[0010] The light source device, mounted on the main support frame, includes a mounting substrate and a light-emitting element, wherein:

[0011] A circuit board, mounted on the main support frame, has a mounting base surface for mounting the light-emitting element;

[0012] A light-emitting element is mounted on a circuit board and located within a light-transmitting component; the light-emitting element is configured to emit light.

[0013] The position of the light source device is raised so that the mounting base surface approaches or extends upwards from the upper edge of the housing, so that the upper edge of the housing avoids interfering with the lateral light emitted from the light-transmitting element by the light source device / light emitter.

[0014] In existing technologies, light from light-emitting devices is emitted upwards from the light-transmitting component, while the outer side is blocked by the outer casing, preventing lateral light emission. In this solution, the mounting base is the upper surface of the circuit board. By raising the height of the light-emitting device, i.e., the mounting base is close to or extends upwards beyond the upper edge of the outer casing, the position of the light-emitting body is higher than in existing technologies, closer to or higher than the upper edge of the outer casing. The outer casing only partially blocks or completely does not block the lateral light emitted by the light-emitting body, allowing the obliquely emitted light to reach the ceiling smoothly. This results in the light from the light-emitting device being emitted laterally to a farther position on the ceiling, with a more uniform and wider light distribution, thus solving the problem of light accumulation and creating a larger and more uniform light spot. Consequently, the indoor lighting is softer and more uniform.

[0015] In summary, this luminaire improves luminous efficiency and enhances the overall lighting effect by laterally diffusing light from a single light source and coordinating the avoidance between the housing and the light-transmitting components, resulting in a larger and more uniform light spot. Furthermore, structurally, this luminaire can achieve the same size light spot as existing technologies by being closer to the ceiling, thus reducing the overall height of the luminaire.

[0016] Preferably, the light source device also includes a reflector, which is mounted on the main support frame and located inside the luminaire relative to the light source. The reflector has an outward-facing and upward-sloping reflective surface, configured such that light emitted inward from the light source is reflected by the reflector and propagates obliquely outward and upward. For inward-projecting light, the angled reflector is used to reflect it outward and to a position close to the outward light, further improving luminous efficiency and reducing light loss. If the reflector is vertical or the angle is too small, the inward light will be reflected too far and directly hit the wall instead of the ceiling, resulting in low brightness. This would also cause the light to be too diffused, losing its brightness advantage. Therefore, it is necessary to consider the degree of light dispersion and concentration.

[0017] Preferably, the outer casing and light-transmitting components are annular, the main support frame is disc-shaped, and the reflective surface is conical. The conical reflective surface can reflect the inner light coming from different directions to the surrounding area of ​​the lamp, maintaining uniform light.

[0018] Preferably, the reflector includes an inclined main reflector and a horizontal mounting portion. The reflective surface is formed on the main reflector, and the mounting portion is mounted on the mounting base of the circuit board. The mounting portion has several clearance holes for avoiding the light-emitting element, and its upper surface has a reflective effect. The mounting portion and the main reflector are integrally formed. The light utilization rate of the light-emitting element is not 100%, and some of the unused light will be reflected upwards or outwards by the mounting portion of the reflector. Since the mounting portion and the main reflector are integrally formed, after the horizontal mounting portion is installed, the main reflector is naturally installed in a preset posture, which facilitates the installation of the inclined main reflector.

[0019] Preferably, the outer shell and light-transmitting element are annular, while the main support frame is disc-shaped and located within the outer shell. The light-transmitting element has mounting protrusions at both its inner and outer ends, and a mounting groove is formed on the inner side of the outer shell. The mounting protrusions on the outer side of the light-transmitting element are inserted into the mounting groove, while the mounting protrusions on the inner side of the light-transmitting element are located on the main support frame. The luminaire also includes a top cover plate, which is installed above the main support frame and located inside the light-transmitting element. The outer edge of the top cover plate abuts against the mounting protrusions on the inner side of the light-transmitting element from top to bottom, holding the mounting protrusions between the main support frame and the top cover plate. This facilitates the rapid installation of the light source device and the light-transmitting element.

[0020] Preferably, the reflector is tilted inward at an angle of 8-15°. Within this angle range, the dispersion and concentration of light are more conducive to creating a soft, uniform lighting effect while maintaining overall brightness.

[0021] Preferably, the light-transmitting component is a three-dimensional component, and the cross-sectional profile of the light-transmitting component extends in the height direction. The light-transmitting components in the prior art are all horizontal plates, which means that the light source device can only emit light upwards, which is very restrictive; while the light-transmitting component in this solution is a three-dimensional component, which not only allows the light source device to emit light upwards, but also allows the light to pass through the three-dimensional light-transmitting component laterally, thus expanding the light that shines on the ceiling.

[0022] Preferably, the light-transmitting element includes at least a main light-emitting section that rises from the bottom upwards. The main light-emitting section has a height after rising upwards, allowing lateral light rays to pass through it.

[0023] Preferably, the light-transmitting element includes at least one inclined, vertical, or curved main light-emitting section, the bottom of which is located on the housing and extends upward on the housing. In the prior art, light-transmitting elements are generally annular plates. The light-transmitting element of this lamp is three-dimensional because the light from this lamp does not primarily emerge from the top but from the side. Therefore, the main light-emitting section must extend in the height direction to allow side light to pass through.

[0024] Preferably, the light-emitting element includes a light-emitting diode (LED) and a lens, with the lens disposed on the LED. The lens is configured such that the light emitted by the LED radiates to the side after passing through the lens, reducing the light emitted directly upwards. The lens diffuses the light to the side and reduces the amount of light shining directly onto the ceiling, allowing the light from the LED to pass through the light-transmitting element and reach a farther position on the ceiling. Furthermore, due to the angle of the light, the light distribution range is wider, thus solving the problem of light accumulation and resulting in a larger and more uniform light spot, making the indoor lighting softer and more even.

[0025] Preferably, the circuit board is horizontally arranged on the main support frame; there are several light-emitting diodes (LEDs) mounted on the circuit board, and each LED is equipped with a lens. This design also considers production costs; the reflective surface only needs to be made of reflective paper or a reflector, resulting in minimal added cost. Furthermore, the structural design of this solution maintains the circuit board as a flat plate rather than a three-dimensional conical surface, which saves considerable production costs and allows for low-cost production of the lamp.

[0026] Preferably, the lens has a groove, and the light-emitting diode is located in the groove. The inner surface of the groove is aspherical. The lens is a TV lens, and the light-emitting surface of the light-emitting diode is a vertical light-emitting surface. The lens reduces the frontal illumination of the vertical light-emitting surface, and the light is bent to the side by the lens, thereby allowing the light to diffuse out, amplifying the light spot and improving the light efficiency.

[0027] Preferably, the lens is a TV lens.

[0028] Preferably, the highest point of the casing is not higher than the light-emitting surface of the LED. In this design, the casing provides the best light-shielding effect, and since the light emitted by the LED is all above the casing, no light is blocked by the casing, which can further reduce light loss and improve luminous efficiency.

[0029] Preferably, the main support frame has a horizontal main body, which forms a receiving groove with the outer shell and the light-transmitting element. The upper surface of the main body is the bottom surface of the receiving groove. The light source device is located in the receiving groove, and the mounting base is higher than the bottom surface of the receiving groove. Structurally, the lifting of the mounting base means that the light source device is no longer mounted on the bottom surface of the receiving groove. The distance between the mounting base and the bottom surface of the receiving groove will be greater than the thickness of the circuit board. Therefore, the light source device is raised as a whole and is close to or beyond the upper edge of the outer shell. When the light source device is located deep in the receiving groove, most or even almost all lateral light will be blocked. However, when the light source device is located shallow in the receiving groove as in this solution, the outer shell will avoid most of the lateral light.

[0030] Preferably, the main body has a protrusion that extends upward beyond the upper surface of the main body; the circuit board is mounted on the protrusion. By providing a protrusion on the main body, the mounting height of the light source device is raised so that it is close to or exceeds the upper edge of the housing.

[0031] Preferably, the mounting base is 3-10mm higher than the bottom of the receiving groove.

[0032] The design starting point, concept, and beneficial effects of this utility model, which adopts the above technical solution, are as follows:

[0033] In existing technologies, light from light-emitting devices is emitted upwards from the light-transmitting component, while the outer side is blocked by the outer casing, preventing lateral light emission. In this solution, the mounting base is the upper surface of the circuit board. By raising the height of the light-emitting device, i.e., the mounting base is close to or extends upwards beyond the upper edge of the outer casing, the position of the light-emitting body is higher than in existing technologies, closer to or higher than the upper edge of the outer casing. The outer casing only partially blocks or completely does not block the lateral light emitted by the light-emitting body, allowing the obliquely emitted light to reach the ceiling smoothly. This results in the light from the light-emitting device being emitted laterally to a farther position on the ceiling, with a more uniform and wider light distribution, thus solving the problem of light accumulation and creating a larger and more uniform light spot. Consequently, the indoor lighting is softer and more uniform.

[0034] In summary, this luminaire improves luminous efficiency and enhances the overall lighting effect by laterally diffusing light from a single light source and coordinating the avoidance between the housing and the light-transmitting components, resulting in a larger and more uniform light spot. Furthermore, structurally, this luminaire can achieve the same size light spot as existing technologies by being closer to the ceiling, thus reducing the overall height of the luminaire. Attached Figure Description

[0035] Figure 1 is a three-dimensional structural diagram of the lamp in an embodiment of the present invention;

[0036] Figure 2 is a perspective sectional view of the lamp in an embodiment of the present invention;

[0037] Figure 3 is a planar sectional view of the lamp in an embodiment of the present invention;

[0038] Figure 4 is an exploded view of the lamp in an embodiment of the present invention;

[0039] Figure 5 is a schematic diagram of the principle of the lamp and the method for increasing light effect in the embodiment of the present invention, wherein the solid line is the outer light path and the dashed line is the inner light path;

[0040] Figure 6 is an enlarged view of part A in Figure 5, where the solid line is the outer light path and the dashed line is the inner light path;

[0041] Figure 7 is a comparison diagram of the existing lamp spot A and the lamp spot B in the embodiment of this utility model;

[0042] Figure 8 is a three-dimensional structural diagram of the outer shell in an embodiment of the present invention;

[0043] Figure 9 is a three-dimensional structural diagram of the main support frame in an embodiment of the present invention;

[0044] Figure 10 is a three-dimensional structural diagram of the assembly of the reflector and the circuit board in an embodiment of the present invention.

[0045] The reference numerals in the attached drawings are as follows: outer casing 1; mounting strip 11; mounting groove 12; main support frame 2; main body 21; protrusion 211; connecting part 22; abutting part 23; light source device 3; light emitting body 31; light emitting diode 311; lens 312; reflector 32; reflective surface 321; mounting part 322; main reflector 323; circuit board 33; mounting base 331; light transmitting part 4; main light emitting part 41; flat part 42; mounting protrusion 43; upper cover plate 5; lower cover plate 6; bottom diffuser plate 7. Detailed Implementation

[0046] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0047] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0048] In the description of this utility model, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0049] The specific embodiments of this utility model are as follows:

[0050] As shown in Figures 1-6, the present invention provides a lamp, comprising:

[0051] The outer casing 1 is located on the outer edge of the lamp, and a light-transmitting element 4 is provided on the outer casing 1, which protrudes upward from the outer casing 1;

[0052] Main support frame 2 is installed inside the outer shell 1, and main support frame 2 is configured as the main support;

[0053] Light source device 3 is mounted on main support frame 2. Light source device 3 includes:

[0054] Circuit board 33 is mounted on main support frame 2, and circuit board 33 has mounting base surface 331 for mounting light source 31;

[0055] A light-emitting element 31 is disposed on a circuit board 33 and located inside a light-transmitting element 4. The light-emitting element 31 is configured to emit light.

[0056] The position of the light source device 3 is raised so that the mounting base 331 approaches the upper edge of the housing 1 from bottom to top or extends upward beyond the upper edge of the housing 1, so that the upper edge of the housing 1 avoids interfering with the side light emitted by the light source device 3 from the light-transmitting element 4.

[0057] In the prior art, the light from the light source device 3 is emitted upwards from the light-transmitting element 4, and its outer side is blocked by the outer shell 1, preventing it from emitting light laterally. In this solution, the mounting base 331 is the upper surface of the mounting substrate 33. By raising the height of the light source device 3, that is, the mounting base 331 is close to or extends upwards beyond the upper edge of the outer shell 1, and is higher than the position of the light-emitting body 31 in the prior art, closer to or higher than the upper edge of the outer shell 1, the outer shell 1 only partially blocks or completely blocks the lateral light emitted by the light-emitting body 31, allowing the obliquely emitted light to reach the ceiling smoothly. This allows the light from the light source device 3 to be emitted laterally to a farther position on the ceiling, resulting in a more uniform and wider light distribution. This solves the problem of light accumulation, making the light spot larger and more uniform, and thus making the indoor lighting softer and more uniform. In the prior art, the mounting base of the light source is generally 40-60mm away from the upper edge of the outer shell, while in this solution, the mounting base 311 is within 10mm away from the upper edge of the outer shell 1, or even flush with or beyond the upper edge of the outer shell 1.

[0058] In summary, this luminaire improves luminous efficiency and enhances the overall lighting effect by laterally diffusing light from a single light source and coordinating the avoidance between the housing 1 and the light-transmitting element 4, resulting in a larger and more uniform light spot. Furthermore, structurally, this luminaire can achieve the same size light spot as existing technologies by being closer to the ceiling, thereby reducing the overall height of the luminaire.

[0059] Furthermore, the light-emitting element 31 includes a light-emitting diode 311 and a lens 312, with the lens 312 disposed on the light-emitting diode 311. The lens 312 is configured such that the light emitted by the light-emitting diode 311 radiates to the side after passing through the lens 312, and the light emitted directly upward is reduced. The lens 312 can diffuse the light to the side and reduce the light that shines directly onto the ceiling, so that the light from the light-emitting diode can pass through the light-transmitting element 4 and hit a farther position on the ceiling. Moreover, because the light has an inclined angle, the range of light distribution can be wider, thereby solving the problem of light accumulation, making the formed light spot larger and more uniform, and the indoor lighting is therefore softer and more uniform.

[0060] The light source device 3 also includes a reflector 32, which is mounted on the main support frame 2 and located inside the lamp relative to the light source 31. The reflector 32 has a reflective surface 321 facing outward and tilted upward. The reflective surface 321 is configured such that light emitted from the light source 31 towards the inside is reflected by the reflective surface 321 and then propagates obliquely outward and upward. For light emitted inward, the angled reflective surface 321 is used to reflect it outward and place it at a position close to the outside light, further improving the light efficiency and reducing light loss. If the reflective surface 321 is vertical or the angle is too small, the light from the inside will be reflected too far and directly hit the wall instead of the ceiling, resulting in low brightness. This would also cause the light to be too scattered and lose its brightness advantage. Therefore, it is necessary to match the degree of light dispersion and concentration. The inward tilt angle of the reflective surface 321 is 8-15°. Within this angle range, the degree of light dispersion and concentration is more conducive to forming a soft, uniform lighting effect while maintaining overall brightness. In this embodiment, a tilt angle of 10° is selected.

[0061] Specifically, as shown in Figures 1-4, the lamp is generally disc-shaped. The outer shell 1 and the light-transmitting element 4 are annular. The main support frame 2 is a disc-shaped metal part made of aluminum, which also serves to dissipate heat from the light source device 3. The light source device 3 is arranged in a ring near the outer edge of the upper surface of the lamp. The lamp also has another light source that emits light downwards. The annular shape of the light source device 3 allows the light spot to be evenly distributed on the ceiling, and also has a certain effect of increasing the softness and uniformity of indoor lighting. Considering production costs, the light source device 3 is divided into multiple identical components, which are arranged circumferentially to form a ring. The light-transmitting element 4 is treated in the same way. The light source device 3 includes several mounting substrates 33, which are the circuit boards. The mounting base 33 is horizontally arranged on the main support frame 2. Each mounting base 33 is curved but maintains a flat shape. There are several light-emitting diodes 311, which are set on the mounting base 33 and the number and position of the light-emitting diodes 311 on each mounting base 33 are the same. Each light-emitting diode 311 is provided with the lens 312. This solution also takes into account the production cost. The reflective surface 321 can be made of reflective paper or reflector, and the added cost is not high. The structural setting in this solution can keep the mounting base 33 flat rather than a three-dimensional conical surface, which can save a lot of production costs and keep the lamp able to be produced at low cost.

[0062] The reflector 32 is made of a highly reflective material, such as a reflector, reflective paper, a mirror, or a stainless steel plate. In this embodiment, reflective paper is used as the reflector 32. The reflective surface 321 is conical, which reflects light from different directions around the lamp, maintaining uniform light distribution. The reflector 32 also includes an inclined main reflector 323 and a horizontal mounting portion 322. The reflective surface 321 is formed on the main reflector 323, and the mounting portion 322 is mounted on the mounting base 331 of the circuit board 33. The mounting part 322 has several clearance holes for avoiding the light-emitting body 31, and the upper surface of the mounting part 322 has a reflective effect; the mounting part 322 and the main reflective part 323 are integrally formed; the light utilization rate of the light-emitting body 31 is not 100%, and a portion of the unused light will be reflected upward or outward by the mounting part 322 of the reflector 32; the mounting part 322 and the main reflective part 323 are integrally formed, and after the horizontal mounting part 322 is installed, the main reflective part 323 will also be installed in the preset posture, which facilitates the installation of the tilted main reflective part 323.

[0063] In this embodiment, the light-transmitting element 4 is entirely transparent and is a three-dimensional component. The cross-sectional profile of the light-transmitting element 4 extends in the height direction. In the prior art, the light-transmitting elements 4 are all horizontal plates, which restricts the light source device 3 to emit light only upwards. However, the light-transmitting element 4 in this solution is a three-dimensional component, allowing the light source device 3 to emit light upwards and also allowing light to pass laterally through the three-dimensional light-transmitting element 4, thus expanding the light reaching the ceiling. Therefore, the light-transmitting element 4 includes at least a main light-emitting section 41 that rises upwards from the bottom. The main light-emitting section 41 has height after rising upwards, and lateral light can pass through the main light-emitting section 41. In other words, the light-transmitting element... 4 includes at least one inclined, vertical, or curved main light-emitting part 41, the bottom of which is located on the housing 1 and extends upward on the housing 1; the light-transmitting element 4 in the prior art is basically annular plate-shaped, but the light-transmitting element 4 of this lamp is three-dimensional, because the light of this lamp is not mainly emitted from the top, but from the side, so the main light-emitting part 41 must extend in the height direction to allow side light to pass through; in this embodiment, the main light-emitting part 41 extends upward and inward from the housing 1 in an arc shape, and a flat plate-shaped planar part 42 is integrally formed on the inner part of the main light-emitting part 41, which can also allow light to pass through.

[0064] As shown in Figure 6, lens 312 is a TV lens 312. Structurally, lens 312 has a groove, and light-emitting diode 311 is located in the groove. The inner surface of the groove is aspherical. The light-emitting surface of light-emitting diode 311 is a vertical light-emitting surface. Lens 312 reduces the front illumination of the vertical light-emitting surface. The light is bent to the side by lens 312, thereby allowing the light to diffuse out, amplifying the light spot and improving the light efficiency.

[0065] As shown in Figure 6, the highest point of the outer casing 1 is not higher than the light-emitting surface of the LED 311. In this scheme, the outer casing 1 has the best effect of not obstructing light. The light emitted by the LED 311 is all higher than the outer casing 1, so no light is blocked by the outer casing 1, which can further reduce light loss and improve light efficiency. In the radial direction, the outer casing 1 is located outside the light source device 3, and the thickness of the outer casing 1 and the distance of the outward protrusion of the outer casing 1 are configured so that the user cannot directly see the light source device 3 from any position in the room. In this embodiment, the upper edge of the outer casing 1, that is, the highest point of the outer casing 1, is lower than the light-emitting surface of the LED 311, and the upper edge of the outer casing 1 is slightly lower than the mounting base 331. The distance between the upper edge of the outer casing 1 and the mounting base 331 is 0.5mm.

[0066] Furthermore, the main support frame 2 has a horizontal main body 21, which forms a receiving groove with the outer shell 1 and the light-transmitting element 4. The upper surface of the main body 21 is the bottom surface of the receiving groove. The light source device 3 is located in the receiving groove, and the mounting base 331 is higher than the bottom surface of the receiving groove. Structurally, the lifting of the mounting base 331 is reflected in the fact that the light source device 3 is no longer mounted on the bottom surface of the receiving groove. The distance between the mounting base 331 and the bottom surface of the receiving groove will be greater than the thickness of the circuit board 33. Therefore, the light source device 3 is raised as a whole and approaches or extends beyond the upper edge of the outer shell 1. When the light source device 3 is located deep in the receiving groove, most of the light source device 3 is raised. Side light, or even almost all side light, will be blocked. When the light source device 3 is located in the shallow part of the receiving groove as in this embodiment, the housing 1 will avoid most of the side light. The mounting base 331 is 3-10mm higher than the bottom surface of the receiving groove. In this embodiment, the mounting base 331 is 4.8mm higher than the bottom surface of the receiving groove. The main body 21 has a protrusion 211, which protrudes upward from the upper surface of the main body 21. The circuit board 33 is mounted on the protrusion 211. By setting the protrusion 211 on the main body 21, the mounting height of the light source device 3 is raised so that it is close to or exceeds the upper edge of the housing 1.

[0067] This lamp can be assembled quickly and easily:

[0068] As shown in Figures 2-4 and 8-10, the lamp also includes an upper cover plate 5, a lower cover plate 6, and a bottom diffuser plate 7. The outer shell 1 and the light-transmitting element 4 are annular, while the main support frame 2, the upper cover plate 5, the lower cover plate 6, and the bottom diffuser plate 7 are disc-shaped. The main support frame 2 is located inside the outer shell 1. Specifically, a mounting strip 11 extends inward from the lower part of the outer shell 1, the bottom diffuser plate 7 is placed on the mounting strip 11, and the main support frame 2 is placed on the bottom diffuser plate 7. The main support frame 2 also includes a connecting part 2 located in the middle and recessed relative to the main body 21. 2. The abutment portion 23 extends downward from the edge of the main body 21. The lower cover plate 6 connects to the connecting portion 22 from bottom to top and abuts the bottom diffuser plate 7 against the connecting portion 22. The abutment portion 23 also abuts against the bottom diffuser plate 7. At this time, they can float up and down in the outer shell 1. In order to lock them, mounting protrusions 43 are provided at both the inner and outer ends of the light-transmitting element 4. A mounting groove 12 is provided on the inner side of the upper part of the outer shell 1. The mounting protrusions 43 on the outer side of the light-transmitting element 4 are inserted into the mounting groove 12. The mounting protrusions 43 on the inner side of the light-transmitting element 4 are... The mounting strip 43 is located on the protrusion 211 of the main support frame 2. Before this, the light source device 3 is first installed on the protrusion 211, the light-emitting body 31 is pre-installed on the circuit board 33, the reflector 32 is placed on the circuit board 33, the circuit board 33 is placed on the protrusion 211, and the reflector 32, the circuit board 33, and the protrusion 211 are fixed with screws. Then, the upper cover plate 5 is installed. The upper cover plate 5 is installed above the main support frame 2. The upper cover plate 5 is located inside the light-transmitting element 4, and the outer edge of the upper cover plate 5 abuts from top to bottom. The mounting protrusion 43 on the inner side of the light-transmitting element 4 is connected and held between the protrusion 211 of the main support frame 2 and the upper cover plate 5. The upper cover plate 5 is then fixed to the main body 21 with screws, thus completing the installation. The light-transmitting element 4 plays a connecting role. After the upper cover plate 5 and the main support frame 2 are installed, the light-transmitting element 4 is locked and pressed downward against the main support frame 2. The main support frame 2 then presses downward against the bottom diffuser plate 7. The lower cover plate 6 is then installed on the main support frame 2 and prevents the bottom diffuser plate 7 from detaching downward.

[0069] The downward-emitting light source is installed on the main support frame 2 above the bottom diffuser plate 7 and faces downward.

[0070] Furthermore, a method for improving the luminous efficacy of lamps is provided:

[0071] The light source 31 is positioned facing the ceiling above, and light diffusion and lifting treatments are applied to the light source 31.

[0072] Light diffusion treatment: A lens 312 is placed outside the light-emitting diode 311. After passing through the lens 312, the light emitted by the light-emitting diode 311 radiates to the side and reduces the light emitted directly upward.

[0073] Lifting process: Lift the height of the light-emitting body 31 relative to the upper edge of the outer shell 1, so that the height of the mounting base 331 of the light-emitting body 31 is close to or exceeds the upper edge of the outer shell 1; so that the upper edge of the outer shell 1, which is not transparent to light, is located at the bottom of the light-transmitting element 4, and the lateral light passing through the light-transmitting element 4 can avoid the outer shell 1 and propagate outward.

[0074] The light emitted by the LED 311 passes through the lens 312 and the light-transmitting element 4 and hits the ceiling at an angle, and is diffusely reflected by the ceiling to propagate downwards at an angle.

[0075] The light emitted by the LED passes through lens 312 and is emitted at multiple angles, including external light that is successfully emitted outward and illuminates the ceiling, and internal light that is emitted inward. For the external light, since the opaque outer shell 1 is lower than the light-transmitting element 4, the external light can pass through the light-transmitting element 4 without obstruction and be emitted at a certain angle to the ceiling further away. After being diffusely reflected by the ceiling, it propagates downward at a certain angle, achieving a wide range of soft and uniform indoor lighting and improving the luminous efficiency of the lamp.

[0076] Furthermore, the light-emitting body 31 is subjected to internal light reflection processing;

[0077] Reflection of inner light: The light emitted by the light-emitting diode 311 toward the inside of the lamp is inner light. The inner light is reflected by setting a reflector 32 inside the light-emitting diode 311. The reflective surface 321 on the reflector 32 is tilted inward and tilted outward and upward. The inner light hits the reflective surface 321 after passing through the lens 312 and is reflected outward and upward through the light-transmitting element 4.

[0078] As for the inner light, since the inner light cannot directly illuminate the ceiling around the lamp, when the inner light propagates towards the center of the lamp or the interior, it is reflected outward by the inclined reflective surface 321. The reflected inner light is in the same direction as the outer light but at a different angle. Therefore, it can be used to expand the light spot and improve the light efficiency, making the light utilization rate higher, reducing light loss, and maintaining the lighting brightness.

[0079] In the above method, the light utilization rate of LED 311 is first improved, so that both external and internal light can achieve a diffusion effect, reducing light loss and maintaining lighting brightness. Then, by tilting the light propagation path, the light shining on the ceiling can diffuse outward instead of accumulating above the lamp, thereby expanding the size of the light spot formed by the lamp and its coverage. After the diffuse reflection from the ceiling, the overall lighting light is better, softer and more uniform.

[0080] Figure 7 shows a comparison of the size of the light spot A formed by the existing ceiling diffuse reflection luminaire and the light spot B formed by the luminaire in this embodiment. The dotted line represents the diameter of the luminaire. When the luminaires are the same size, the light spot B formed by the luminaire in this embodiment is much larger than the existing luminaire in both size and coverage.

Claims

1. A lamp, characterized in that, include: The outer casing is located on the outer edge of the lamp, and a light-transmitting element is provided on the outer casing, which protrudes upward from the outer casing; The main support frame is housed inside the outer casing and serves as the main support. A light source device is mounted on a main support frame. The light source device includes a mounting substrate and a light-emitting body, wherein: the mounting substrate is mounted on the main support frame and has a mounting base surface for mounting the light-emitting body; A light-emitting element is disposed on a mounting base and located within a light-transmitting element, and the light-emitting element is configured to emit light. The position of the light source device is raised so that the mounting base surface approaches or extends upward from the upper edge of the housing, so that the upper edge of the housing avoids interfering with the lateral light emitted from the light source device / light-emitting element through the light-transmitting element.

2. The lamp according to claim 1, characterized in that: The light source device also includes a reflector, which is mounted on the main support frame and located inside the lamp relative to the light source. The reflector has a reflective surface that faces outward and is tilted upward. The reflective surface is configured such that light emitted from the light source inward is reflected by the reflective surface and then propagates obliquely outward and upward.

3. The lamp according to claim 2, characterized in that: The reflector includes an inclined main reflector and a horizontal mounting part. The reflective surface is formed on the main reflector, and the mounting part is mounted on the mounting base surface of the mounting substrate. The mounting part has several clearance holes for avoiding the light-emitting body, and the upper surface of the mounting part has a reflective effect. The mounting part and the main reflector are integrally formed.

4. The lamp according to claim 2, characterized in that: The outer shell and light-transmitting element are annular, the main support frame is disc-shaped, and the reflective surface is conical. The main support frame is located inside the outer shell. The inner and outer ends of the light-transmitting element are provided with mounting protrusions. The inner side of the outer shell is provided with a mounting groove. The mounting protrusions on the outer side of the light-transmitting element are inserted into the mounting groove, and the mounting protrusions on the inner side of the light-transmitting element are located on the main support frame. The lamp also includes a top cover plate, which is installed above the main support frame and located inside the light-transmitting element. The outer edge of the top cover plate abuts against the mounting protrusions on the inner side of the light-transmitting element from top to bottom and keeps the mounting protrusions between the main support frame and the top cover plate.

5. The lamp according to claim 2, characterized in that: The reflective surface is tilted inward at an angle of 8-15°.

6. The lamp according to claim 1, characterized in that: The light-transmitting component is a three-dimensional component, and the cross-sectional profile of the light-transmitting component extends in the height direction; the light-transmitting component includes at least a main light-emitting part that rises from the bottom upwards.

7. The lamp according to claim 6, characterized in that: The light-transmitting element includes at least one inclined, vertical, or curved main light-emitting part, the bottom of which is located on the outer shell and extends upward on the outer shell.

8. The lamp according to claim 1, characterized in that: The light-emitting element includes a light-emitting diode and a lens, with the lens disposed on the light-emitting diode; the lens is configured such that the light emitted by the light-emitting diode radiates to the side after passing through the lens and reduces the light emitted directly upward.

9. The lamp according to claim 8, characterized in that: The mounting substrate is horizontally arranged on the main support frame; there are several light-emitting diodes, which are arranged on the mounting substrate, and each light-emitting diode is provided with the lens.

10. The lamp according to claim 8, characterized in that: The lens is a TV lens; the lens has a groove, the light-emitting diode is located in the groove, and the inner surface of the groove is aspherical.

11. The lamp according to claim 8, characterized in that: The upper edge of the casing is not higher than the light-emitting surface of the LED.

12. The lamp according to claim 1, characterized in that: The main support frame has a horizontal main body, and a receiving groove is formed between the main body, the outer shell, and the light-transmitting element. The upper surface of the main body is the bottom surface of the receiving groove. The light source device is located in the receiving groove and the mounting base is higher than the bottom surface of the receiving groove. The main body has a protrusion that protrudes upward from the upper surface of the main body. The mounting base is mounted on the protrusion.

13. The lamp according to claim 12, characterized in that: The mounting base is 1-10mm higher than the bottom of the receiving groove.

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