CN206600718U - Light source modules and lamps - Google Patents

Abstract

The utility model provides a light source module and a lamp, which enable the light emitted by a light emitting device to be uniformly emitted from the light incident surface of a lens module through the arrangement of the light source module, and the light emitting is uniform and has no yellow spot; the light source modularization simplifies the assembly process of the whole lamp, the assembly automation can be realized, the production efficiency is improved, the emitted light is uniform, and the effect is good; the brightness of the lampshade of the modularized lamp is uniform; the original driving box cover is omitted, the cost of the light source and the light source board is reduced, and the cost of the whole lamp is reduced.

Description

Light source modules and lamps

technical field

The utility model relates to the field of lamps, in particular to a light source module and a lamp.

Background technique

In the prior art, lenses used in lamps generally have a macular effect. The occurrence of macula is related to the coating method of the phosphor at the light source. Therefore, the light sources on the market generally have a low color temperature in the direction of large angles, that is, yellowing. In the prior art, it is generally difficult to eliminate the yellow circle and macula around the light field with a single lens of a single optical material, and a slight carelessness in the treatment of the microstructure of the inner or outer surface of a single lens will aggravate the macular effect.

In addition, the cross-sectional light distribution of the light emitted by the light-emitting unit of the lamp is similar to the Lambertian light distribution. Since the full width of the illumination angle of the Lambertian light distribution is about 120 degrees, the illumination angle is not large enough. Therefore, after the light-emitting unit emits light, bright spots are formed on the lamp cover, or the transition between light and dark is uneven. Only by densely arranging the light-emitting units on the light source substrate can the problem of poor luminous effect be solved, resulting in higher production costs. cost.

Furthermore, most of the existing lamps are integrated lamps, which are difficult to disassemble and bring inconvenience to users.

Taking the existing ceiling lamp as an example, most of the current conventional ceiling lamps place the drive module in the middle of the chassis, arrange the light source around the drive box, and emit light through the front of the lampshade. This kind of light source arrangement will make the light distribution uneven, the center of the lampshade is brighter and the edge is darker, and the effect of the light spot is not good, thus affecting the aesthetics of the entire ceiling lamp. If you want to improve the uniformity of the lampshade or reduce the height of the lampshade, you must increase the area of the light source board and increase the number of light sources, which will inevitably increase the cost.

Utility model content

In order to solve the above technical problems, the utility model proposes a light source module and a lamp.

The utility model is realized by following technical scheme:

A light source module, including a lens module composed of one or more lenses and a substrate for arranging the lens module, the lens module is evenly arranged on the substrate; the substrate is provided with a drive capacity It also includes a light source board and a drive fixed thereon, the drive can be placed in the drive accommodating slot, the light source board is provided with an LED light source, and the light emitted by the LED light source can be evenly distributed from the The light incident surface of the lens module enters the lens module.

Further, the lens includes a first curved surface and a second curved surface starting from the edge of the first curved surface and gradually upwardly self-contracting,

The first curved surface includes a hollow annular plane, which gradually gathers upwards from the inner ring edge of the hollow annular plane to form a light incident surface; the curvature of the light incident surface is greater than that of the second curved surface so that the The illumination angle of the light on the light incident surface becomes larger;

The top of the second curved surface is provided with a concave portion facing the first curved surface, and the concave portion has a coincident central axis with the light incident surface;

The hollow annular plane has a honeycomb microstructure so that the light incident on the hollow annular plane can be scattered and refracted toward the second curved surface.

Further, the outer ring edge of the hollow annular plane gradually extends upwards to form a third curved surface, and the light incident surface and the third curved surface are atomized curved surfaces.

Further, the centers of the cross-sections of the light incident surface and the second curved surface are on the same vertical line.

Further, the hollow annular plane also has a limiting mechanism.

A lamp, comprising a chassis, a light source module, a lampshade and a face ring sleeved on the lampshade, the light source module is arranged on the chassis, the lampshade is connected to the chassis, the light source module The set includes a lens module composed of one or more lenses and a substrate for arranging the lens module, and the lens module is evenly arranged on the substrate; the substrate is provided with a driving accommodating groove; it also includes A light source board and a drive fixed thereon, the drive can be placed in the drive accommodating groove, an LED light source is provided on the light source board, and the light emitted by the LED light source can evenly pass through the entrance of the lens module The light surface enters the lens module.

Further, the lens includes a first curved surface and a second curved surface starting from the edge of the first curved surface and gradually upwardly self-contracting,

The first curved surface includes a hollow annular plane, which gradually gathers upwards from the inner ring edge of the hollow annular plane to form a light incident surface; the curvature of the light incident surface is greater than that of the second curved surface so that the The illumination angle of the light on the light incident surface becomes larger;

The top of the second curved surface is provided with a concave portion facing the first curved surface, and the concave portion has a coincident central axis with the light incident surface;

The hollow annular plane has a honeycomb microstructure so that the light incident on the hollow annular plane can be scattered and refracted toward the second curved surface.

The outer ring edge of the hollow annular plane gradually extends upwards to form a third curved surface, and the light incident surface and the third curved surface are atomized curved surfaces.

Further, a connection terminal is also arranged on the chassis, and the connection terminal is connected with the drive.

The utility model proposes a light source module and a lamp, which have the following beneficial effects:

(1) A light source module and a lamp based on the light source module are provided. Through the arrangement of the light source module, the light emitted by the light emitting device is evenly emitted from the light incident surface of the lens module, and the light is uniform without yellow spots; and the light source is modularized Simplify the assembly process of the whole lamp, which can realize assembly automation, improve production efficiency, and the emitted light is uniform and effective;

(2) Modularized lamps, the lampshade has uniform brightness; the original drive box cover is omitted, which reduces the cost of the entire lamp.

Description of drawings

Fig. 1 is the structural diagram of a kind of non-beam-splitting large-angle lens provided in embodiment 1;

Figure 2 is a schematic cross-sectional view along the central axis of the lens provided in Example 1;

Fig. 3 is the optical path diagram of the light provided in embodiment 1 passing through the lens;

Fig. 4 is the batwing light distribution curve diagram through the lens provided in embodiment 1;

Fig. 5 (1) is the illuminance diagram of the receiving screen through the lens provided in embodiment 1;

Fig. 5 (2) is the illuminance diagram of the simulated light source receiving screen provided in embodiment 1;

Fig. 6 is the illuminance comparison diagram of the lampshade based on the light source module provided in embodiment 2;

Fig. 7 is an exploded view of the ceiling lamp provided in Embodiment 3.

Among them: 1-first curved surface, 2-second curved surface, 11-hollow annular plane, 12-light incident surface, 13-third curved surface, 21-concave, 10-chassis, 20 printed circuit board, 30-substrate, 40-shade, 50-face ring.

detailed description

In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the utility model. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

It should be noted that the terms "comprising" and "having" and any variations thereof are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to expressly instead of those steps or elements listed, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

Example 1:

The first embodiment of the utility model provides a lens; as shown in Figure 1, it shows a structural diagram of a large-angle lens without light splitting, as shown in Figure 1, the lens includes a first curved surface 1 and Starting from the edge of the first surface, the second surface 2 gradually converges upwards,

The first curved surface 1 includes a hollow annular plane 11, which gradually gathers upwards from the inner ring edge of the hollow annular plane 11 to form a light incident surface 12; the curvature of the light incident surface 12 is greater than that of the second curved surface 2 In order to increase the illumination angle of the light passing through the light incident surface 12 . Specifically, the centers of circles of the light incident surface 12 and the second curved surface 2 may be on the same vertical line.

The hollow annular plane 11 has a honeycomb microstructure so that light incident on the hollow annular plane 11 can be scattered and refracted toward the second curved surface 2 . The hollow annular plane 11 has a honeycomb microstructure, which scatters the light totally reflected back to the bottom surface and refracts it back to improve the optical efficiency.

Both the light incident surface 12 and the second curved surface 2 are curved surfaces with a smooth transition, the light incident surface 12 is inside, the second curved surface 2 is outside, and the inner and outer surfaces cooperate to ensure uniform light spots and no macular diffraction. Specifically, the cross-sections of the light incident surface 12 and the second curved surface 2 in all directions have the same surface shape.

Please refer to FIG. 2 , which shows a schematic cross-sectional view along the central axis of the lens. It can be seen that the top of the second curved surface 2 is provided with a concave portion 21 facing the first curved surface 1, and the concave portion 21 is connected to the incident light. The surfaces 12 have coincident central axes, and the arrangement of the concave portion 21 increases the irradiation angle of the light.

The outer edge of the hollow annular plane 11 gradually extends upwards to form a third curved surface 13. The light incident surface 12 and the third curved surface 13 are atomized curved surfaces, which can further improve the uniformity of the light spot and reduce the generation of macula . Specifically, the specific shape of the third curved surface 13 is not limited, as long as it can connect the second curved surface 2 and the hollow annular plane 11 , preferably, the third curved surface 13 is a cylindrical surface in this embodiment.

Taking the light source as an LED as an example, the light-emitting surface of the LED light source is directly opposite to the bottom of the lens, and the light-emitting surface of the light source is 0.1mm away from the bottom of the inner surface of the lens as an example. Figure 3 shows the optical path diagram of the light passing through the lens. The light rays are refracted through two optical curved surfaces to achieve a wide range of lighting effects. Figure 4 shows the light distribution curve of the batwing through the lens. It can be seen that the light passing through the lens can reach a larger beam angle, and the beam angle can reach 165°, which fully demonstrates that the light refracted from the lens can illuminate a wider range. In addition, due to the design of the curve, the refraction direction of the light from the blue chip and the surface phosphor in the LED light source through the lens is basically the same. Figure 5(1) shows the illuminance diagram of the receiving screen passing through the lens, as shown in Figure 5(1). The light spot transitions smoothly. Figure 5(2) shows the illuminance diagram of the receiving screen of the simulated light source. As shown in Figure 5(2), the light passing through the blue chip in the LED light source and the red phosphor on the surface is evenly mixed, and there is no obvious The blue or red ring band, so that there will be no spectroscopic (macular) phenomenon.

Example 2:

The embodiment of the present utility model provides a light source module, please refer to FIG. 7 , which includes a lens module composed of one or more lenses and a substrate for placing the lens module. The lens module is uniformly arranged on the On the base plate; the base plate 30 is provided with a drive accommodating slot; it also includes a light source board and a drive fixed thereon, the drive can be placed in the drive accommodating slot, and the light source board is provided with an LED The light source, the light emitted by the LED light source can evenly enter the lens module from the light incident surface of the lens module.

Specifically, the LED light source is powered through the printed circuit board 20, and the printed circuit board 20 has conductive lines on it. The lens may be the lens provided in Embodiment 1. Further, the hollow annular plane 11 also has a limit mechanism to fix the position of the lens. The limiting mechanism is used to fix the lens on the substrate. Specifically, the limiting mechanism may be composed of one or more positionable screw parts.

Further, the light emitted by the LED light source can enter the lens through the groove formed by the light incident surface 12 in the lens. Specifically, the driver is fixedly connected to the LED light source board by inserting, and the lens module cover is arranged on the light source board, so that the LED light source is correspondingly arranged in the groove formed by the light incident surface 12 of the lens, and the driver is correspondingly inserted into the groove. The drive accommodation slot.

Please refer to Fig. 6, which shows the illuminance comparison diagram of the lampshade based on the light source module. It can be seen that the light source module provided by this embodiment not only has no light splitting, no macula, and can radiate the light source at a large angle. The entire lampshade with the light source module is illuminated, and there is no dark area on the surface of the lampshade, so that the effect of uniform light spots is achieved.

Example 3:

The embodiment of the present utility model provides a lamp. Please refer to FIG. 7 , which shows an exploded view of a ceiling lamp. It includes a chassis 10, a light source module, a lampshade 40, and a face ring 50 sleeved on the lampshade 40. The light source module is arranged on the chassis 10, and the lampshade 40 is connected to the chassis 10. The light source module includes a lens module composed of one or more lenses and a substrate for arranging the lens module, and the lens module is evenly arranged on the substrate; the substrate 30 is provided with a drive housing Groove; also includes a light source board and a drive fixed thereon, the drive can be placed in the drive accommodating groove, the light source board is provided with an LED light source, the light emitted by the LED light source can be evenly emitted from the lens The light incident surface of the module enters the lens module. Specifically, please refer to Embodiment 2 for the light source module.

Further, the light emitted by the LED light source can enter the lens through the groove formed by the light incident surface 12 in the lens. In this embodiment, the drive box cover required by the common ceiling lamp is omitted, which reduces the cost. Specifically, the ceiling lamp in this embodiment has a diameter of 350mm and a height of 50mm, and the height can be made smaller than other ceiling lamps on the market by using a light source module. The light emitting device may include an SMD light source, the full name of SMD is the abbreviation of Surface Mounted Devices, which means a surface mount device, and the SMD light source and the driving circuit are arranged on the same substrate.

The assembly method of the ceiling lamp in this embodiment is simplified compared with the existing assembly method, including the following steps:

Set the lens module cover on the light source board, and lock it on the chassis 10 with screws; then connect the driving wires to the terminals, lock the terminals at the corresponding positions on the chassis 10, and finally screw in the lampshade 40 and cover the upper ring 50 to complete the whole lamp assembly.

This embodiment uses a lens module with optimized structure. Taking LED as the light source as an example, the number of LEDs required for the whole lamp is less than that of an ordinary ceiling lamp of the same size. The cost of the light source and the light source board is reduced to a certain extent. The height of the whole lamp is reduced, in line with the trend of thinner and thinner ceiling lamps. At the same time, the lens module is also used as a drive box and a cover to protect the light source. The modularization of the light source can effectively simplify the assembly process and realize automation.

Of course, the light source module can also be applied to different ceiling lamps, and it can be realized by making some minor adjustments according to the actual size.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made. Retouching should also be regarded as the scope of protection of the present utility model.

Claims (9)

1. a kind of light source module, it is characterised in that including the lens module being made up of one or more lens and for disposing The substrate of mirror module, the lens module is uniformly arranged on the substrate；Driving is provided with the substrate (30) accommodating Groove；Also include light source board and the driving being fixed thereon, the driving can be placed in the driving storage tank, on the light source board Provided with LED/light source, the light that the LED/light source is sent equably can inject the lens module from the incidence surface of lens module.

2. light source module according to claim 1, it is characterised in that the lens include first surface (1) and from first Curved edges are set out gradually upwards from the second curved surface (2) drawn in,

The first surface (1) includes a hollow and annular plane (11), from the inner annular edge of the hollow and annular plane (11) by Gradually draw in upwards and form incidence surface (12)；The curvature of the incidence surface (12) is more than second curved surface (2) to pass through institute The lighting angle for stating the light of incidence surface (12) becomes big；

The top of second curved surface (2) be provided with towards the first surface (1) depressed part (21), the depressed part (21) with The incidence surface (12) has the central shaft overlapped；

There is the hollow and annular plane (11) honeycombed microstructure to cause the light for being mapped to the hollow and annular plane (11) It can be broken up, and reflected to second curved surface (2).

3. light source module according to claim 2, it is characterised in that the outer shroud edge of the hollow and annular plane (11) by Gradually upwardly extend to form the 3rd curved surface (13), the incidence surface (12) and the 3rd curved surface (13) are atomization curved surface.

4. light source module according to claim 2, it is characterised in that the incidence surface (12) and second curved surface (2) Cross section the center of circle on same vertical curve.

5. light source module according to claim 2, it is characterised in that also have on the hollow and annular plane (11) spacing Mechanism.

6. a kind of light fixture, it is characterised in that including chassis (10), light source module, lampshade (40) and be placed on the lampshade (40) On face ring (50), the light source module is arranged on the chassis (10), the lampshade (40) with the chassis (10) even Connect, the light source module includes the lens module being made up of one or more lens and the substrate for disposing lens module, institute Lens module is stated to be uniformly arranged on the substrate；Driving storage tank, in addition to light source board are provided with the substrate (30) With the driving being fixed thereon, the driving can be placed in the driving storage tank, and the light source board is provided with LED/light source, institute State the light that LED/light source sends equably can inject the lens module from the incidence surface of lens module.

7. light fixture according to claim 6, it is characterised in that the lens include first surface (1) and from first surface Edge sets out gradually upwards from the second curved surface (2) drawn in,

The first surface (1) includes a hollow and annular plane (11), from the inner annular edge of the hollow and annular plane (11) by Gradually draw in upwards and form incidence surface (12)；The curvature of the incidence surface (12) is more than second curved surface (2) to pass through institute The lighting angle for stating the light of incidence surface (12) becomes big；

The top of second curved surface (2) be provided with towards the first surface (1) depressed part (21), the depressed part (21) with The incidence surface (12) has the central shaft overlapped；

There is the hollow and annular plane (11) honeycombed microstructure to cause the light for being mapped to the hollow and annular plane (11) It can be broken up, and reflected to second curved surface (2).

8. light fixture according to claim 7, it is characterised in that the outer shroud edge of the hollow and annular plane (11) gradually to Upper extension forms the 3rd curved surface (13), and the incidence surface (12) and the 3rd curved surface (13) are atomization curved surface.

9. light fixture according to claim 7, it is characterised in that be additionally provided with binding post on the chassis (10), institute The electric wire that binding post is stated with the driving is connected.