WO2018171307A1

WO2018171307A1 - Light source module and lighting device

Info

Publication number: WO2018171307A1
Application number: PCT/CN2018/072599
Authority: WO
Inventors: 邹东洪; 倪国龙; 张国宝
Original assignee: 欧普照明股份有限公司
Priority date: 2017-03-23
Filing date: 2018-01-15
Publication date: 2018-09-27
Also published as: CN206803061U

Abstract

A light source module (30) and a lighting device (100). The light source module (30) comprises a spiral light source substrate (2), and the light source substrate (2) being an integrated structure; several light-emitting units (3) provided on the surface of the light source substrate (2); and, a light distributing component (1) detachably assembled with the light source substrate (2) and comprising an optical part (11) covering the light source substrate (2) and distributing lights emitted by the light-emitting units (3). The light source substrate (2) in the light source module (30) is an integrated structure, facilitates assembly, and reduces manufacturing costs relative to a joined structure; the light source substrate (2) is spiral, when manufacturing the light source substrate (2), when one spiral substrate is cut out from one printed circuit board, the remaining part can also be cut into one or more spiral substrates; hence, the production of scrap materials when the light source substrate (2) is manufactured is reduced as much as possible, thus saving on the manufacturing costs for the light source substrate (2).

Description

Light source module and lighting device

Technical field

The invention belongs to the technical field of illumination, and in particular relates to a light source module and a lighting device.

Background technique

With the rapid development of lighting technology, ceiling lamps are increasingly used in indoor lighting. The existing ceiling lamp generally comprises a chassis, a mask connected to the chassis, and a light source module and a driving power component fixed on the chassis, wherein the light source module and the driving power component can be integrated or split.

A light source module currently applied to an illumination device includes a light source substrate, a light emitting unit disposed on the light source substrate, and an optical element disposed above the light emitting unit and distributing light to the light emitting unit. The existing light source substrate includes two types of splicing type and integral type.

However, the spliced light source substrate needs to be additionally provided with connectors at both ends of the light source substrate unit, thereby connecting several segments of the light source substrate unit as a whole, so that the light source module requires more man-hours in the assembly process, and the light source at the same time. The module is also inconvenient to assemble, and as a result, the overall manufacturing cost of the light source module is high and it is not easy to assemble.

In addition, the integrated light source substrate wastes the substrate material, resulting in an increase in the manufacturing cost of the light source module.

Summary of the invention

The object of the present invention is to solve the above problems and to provide a light source module which is easy to assemble and low in cost.

To achieve the above object, the present invention provides a light source module, including

a spiral light source substrate, wherein the light source substrate is a unitary structure;

a plurality of light emitting units disposed on a surface of the light source substrate;

The light distribution element is detachably assembled with the light source substrate, and includes an optical portion that covers the light source substrate and distributes light for the light emitted by the light emitting unit.

Further, the light source substrate includes a driving power supply unit located at the center and a light source unit extending from the driving power supply unit in a spiral shape.

Further, the light distribution element further includes a driving power source accommodating portion, the driving power source accommodating portion covers the driving power source portion, and the optical portion covers the light source portion.

Further, the optical portion includes at least two ring portions that are spaced apart from each other, and the light source module includes a connecting portion that connects the ring portions.

Further, a lower surface of the optical portion is provided with a recessed groove for accommodating the light source substrate and the light emitting unit.

Further, the recessed groove has a bottom surface having an arcuate curved surface, the bottom surface is a light incident surface, the optical portion has an upper surface having an arcuate curved surface, and the upper surface is a light exiting surface, the light The curvature of the incident surface is greater than the curvature of the light exit surface.

Further, the recessed groove is an axisymmetric structure, and the plurality of light emitting units are eccentrically disposed in the recessed groove.

Further, the light source module further includes a driving power component, and the driving power component is located on a surface of the driving power supply unit and is received in the driving power storage unit and electrically connected to the light source substrate.

Further, the light source substrate has a circular spiral shape or a square spiral shape.

Further, the light distribution element is a lens.

Further, the light source substrate is snap-connected to the optical portion.

Further, the light source module further includes a magnetic mounting component disposed inside the light distribution component.

Further, the magnetic mounting component includes an adsorption portion, and the adsorption portion is a strong magnet.

In order to achieve the above object, the present invention further provides a lighting device, including the light source module, a chassis connected to the light source module, and a mask connected to the chassis, wherein the light source module is disposed in a space formed by the connection between the chassis and the mask. Inside.

Further, the light source module and the chassis are detachably connected by suction or screw.

Compared with the prior art, the light source module of the present invention has an integrated structure of the light source substrate, which is convenient for assembly, and reduces manufacturing cost compared with the spliced structure; the light source substrate is spiral, and when the light source substrate is manufactured, After cutting a spiral substrate on a printed circuit board, the remaining portion can be further cut into one or more spiral substrates, which can minimize the generation of residual materials after manufacturing the light source substrate, thereby saving the light source substrate. Manufacturing costs.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

Figure 1 is a perspective view of a lighting device in accordance with a first embodiment of the present invention;

Figure 2 is an exploded view of Figure 1;

3 is an exploded view of a light source module in a lighting device according to a first embodiment of the present invention;

4 is an exploded perspective view showing another angle of the light source module in the lighting device according to the first embodiment of the present invention;

Figure 5 is a cross-sectional view taken along line A-A of Figure 1;

Figure 6 is a partial enlarged view of the circle in Figure 2;

Figure 7 is an exploded view of a light source module in accordance with a second embodiment of the present invention.

detailed description

The technical solutions of the present invention will be clearly and completely described in conjunction with the specific embodiments of the present invention and the accompanying drawings. It is apparent that the described embodiments are only a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Embodiment 1:

As shown in FIG. 1 to FIG. 6 , the embodiment provides a lighting device 100 including a chassis 10 , a mask 20 connected to the chassis 10 , and a light source module 30 fixed on the chassis 10 . The mask 20 and the chassis 10 are connected to form a receiving space 40 , and the light source module 30 is received in the receiving space 40 . The lighting device 100 provided by the embodiment of the invention may be a lamp such as a ceiling lamp or an advertising light box.

The respective components and the connection relationship between the components in the illumination device 100 provided by the embodiments of the present invention are specifically described below.

As shown in Fig. 2, the chassis 10 has a circular shape, and the chassis 10 is made of a material such as metal or plastic, and can be mounted on a ceiling or the like.

The mask 20 is covered on one side of the chassis 10, and its outer surface has a certain curvature and is convex. The mask 20 is made of a light transmissive material, such as acrylic, and can be used to homogenize the light emitted from the light source module 30. The connection between the mask 20 and the chassis 10 can be realized by means of plugging, snapping, screwing or the like. In other embodiments, the mask 20 may not be provided.

As shown in FIG. 3 to FIG. 6 , the light source module 30 includes a lens 1 , a light source substrate 2 assembled on the lens 1 side 2 , a plurality of light emitting units 3 disposed on the light source substrate 2 and facing the lens 1 , and a light source substrate 2 . Drive power components (not shown). The illumination module 100 can achieve the illumination effect required by the illumination device 100, that is, the illumination device has a certain illumination range and a uniform illumination effect.

The lens 1 has a circular spiral shape as a light distribution element, and includes an optical portion 11, a driving power source housing portion 12 disposed at a center position of the lens 1 and located at an inner end of the optical portion 11, and three connections for reinforcing the strength of the lens 1. Part 13. Specifically, the optical portion 11 is spirally extended from the inside and the outside by the driving power source accommodating portion 12 in the horizontal direction, and the optical portion 11 includes at least two ring portions spaced apart from each other. The three connecting portions 13 include a first connecting portion 131 that connects the two mutually spaced ring portions of the optical portion 11, and two second connecting portions 132 that connect the optical portion 11 and the driving power source housing portion 12.

The optical portion 11 of the lens 1 in the light source module 30 is used for secondary light distribution of the light emitted from the light-emitting unit 3, that is, optical path adjustment. In the present embodiment, the lens 1 can be made of a transparent plastic material having optical properties (such as PC, PMMA), and is integrally molded by injection molding technology. Of course, in other alternative embodiments, the lens 1 can also be a glass cover having a uniform thickness, having only a light transmitting function and a connecting function, and having no light distribution function.

Specifically, the optical portion 11 is a region on the lens 1 for secondary light distribution, which covers the light source substrate 2 and distributes light for the light emitted from the light-emitting unit 3. The lower surface of the optical portion 11 is provided with a recessed groove 111. The plurality of light emitting units 3 can be disposed in the recessed groove 111. Therefore, the recessed groove 111 can also be referred to as a light source receiving groove. The surface portions of the respective sections of the optical portion 11 in the extending direction thereof are uniform and have an axisymmetric structure. As shown in FIG. 6, the recessed groove 111 has a bottom surface 112 having an arcuate curved surface, the bottom surface 112 is a light incident surface, and the optical portion 11 has an upper surface 113 having an arcuate curved surface, and the upper surface 113 is a light exit surface. . Further, the curvature of the light incident surface is larger than the curvature of the exit surface, that is, the light incident surface is more curved than the light exit surface. In other alternative embodiments, the light incident surface and the light exit surface of the lens 1 are not only hyperboloids having different curvatures, but also the light incident surface is a triangle, and the light exit surface is a curved surface.

As shown in FIG. 2, FIG. 4 and FIG. 5, the driving power source accommodating portion 12 is a driving power source accommodating region for accommodating a driving power source unit (not shown) on the lens 1, and has a substantially fan shape, and a part of the upper surface is composed of a lower surface. A protruding portion 121 is formed by arching upward, and the receiving portion 121 is provided with a receiving groove 1211 for receiving a driving power source assembly (not shown).

As shown in FIGS. 2 to 4, the connecting portion 13 has a flat strip shape. In this embodiment, the arrangement of the connecting portion 13 increases the structural strength of the lens 1 , thereby increasing the structural strength of the light source module 100 , and also allowing the user of the disassembling and assembling light source module 30 to conveniently hold the light source module. 30. The connecting portion 13 may be transparent, translucent or opaque. In an embodiment, the light source substrate 2 may further include a portion extending into the connecting portion 13, and in this case, the connecting portion 13 may also serve as an optical region for secondary light distribution. In the present embodiment, the connection between the connecting portion 13 on the lens 1 and the chassis 10 can be fixedly connected by screws, so that the light source module 30 is mounted on the chassis 10. In other alternative embodiments, the light source module 30 can also be coupled to the chassis 10 by magnetic mounting elements (not shown) or other connections, wherein the magnetic mounting elements utilize a magnet as the absorbing portion. The light source module 30 is simple and convenient to install, and the connection is reliable.

As shown in FIGS. 3 and 4, the light source substrate 2 may be a printed circuit board having conductive lines. The configuration of the light source substrate 2 on the horizontal surface is substantially the same as that of the lens 1 and has a circular spiral shape, and is an integrated structure. Specifically, the light source substrate 2 includes a central driving power supply unit 22 and a self-driving power supply unit 22 extending to A spiral light source unit 21. The driving power source accommodating portion 12 covers the driving power source portion 22, and the optical portion 11 covers the light source portion 21. The light source substrate 2 can be fixed to the optical portion 11 of the lens 1 through a snap element (not shown) on the optical portion 11 of the lens 1. When the connecting portion 13 is an optical region for light distribution, the light source substrate 2 may further include a portion (not shown) corresponding to the connecting portion 13, and thus, the connecting portion 13 may also emit light for the light source substrate 2.

A driving power supply unit (not shown) is mounted on the inner end of the light source substrate 2 and located in the receiving groove 1211 of the lens 1. The device includes a plurality of components disposed on one surface of the light source substrate 2, including but not limited to a driving controller chip. A rectifier chip, a resistor, a capacitor, a fuse, a coil, and the like are disposed on the light source substrate 2 in the form of a surface mount or a plug. In other alternative embodiments, a power supply substrate may be additionally disposed in the light source module 30 for mounting the driving power supply component, and the power supply substrate and the light source substrate 2 are electrically connected.

The light emitting unit 3 is an LED light emitting unit which can be mounted on the upper surface of the light source substrate 2 by Surface Mount Technology (SMT) or Through Hole Technology (THT). A plurality of light-emitting units 3 are electrically connected to each other through a conductive line on the light source substrate 2. A plurality of light emitting units 3 are sequentially arranged in the extending direction of the light source portion 21. It should be noted that a plurality of light-emitting units 3 are disposed below the optical portion 11 and correspond to the recessed grooves 111, that is, the light-emitting unit 3 can be regarded as being housed in the recessed grooves 111. Of course, as another alternative embodiment of the present invention, a plurality of light-emitting units 3 of a single row may be disposed eccentrically, or two or three or more rows of light-emitting units 3 may be disposed.

It should be noted that the light source module 30 can be applied to the illumination device 100. After the illumination device 100 is activated, the light emitted by the light-emitting unit 3 in the light source module 30 passes through the light incident surface of the optical portion 11 of the lens 1 to be outwardly refracted, and the light extends in a straight line in the optical portion 11 of the lens 1. When the light reaches the light exit surface, a secondary outward refraction occurs, and after two outward refracting, the illumination angle of the light source module 30 is increased. Compared with the prior art, in the case of maintaining the original brightness of the illumination device 100, the size of the light source substrate 2 carrying the light-emitting unit 3 in the light source module 30 can be reduced, and the number of the light-emitting units 3 can also be reduced, thereby reducing the light source. The manufacturing cost of the module 30. In addition, since the driving power supply unit can be mounted on the light source substrate 2 of the light source module 30 and housed in the receiving groove 1211 of the lens 1 , the space of the light source substrate 2 of the light source module 30 is fully utilized, thus integrating the driving power source. The light source module 30 of the assembly can be assembled into the lighting device 100 as a module. At the same time, the lens 1 on the light source module 30 also serves as an electrically insulating housing, which improves the safety level.

Most notably, in the light source module 30 provided by the present invention, the light source substrate 2 is an integrated structure, which is convenient for assembly, and reduces manufacturing cost compared with the spliced structure; the light source substrate 2 is spiral, and is manufactured. In the case of the light source substrate, after cutting a spiral substrate on a printed circuit board, the remaining portion can be further cut into one or more spiral substrates, so that the generation of residual materials after the light source substrate is manufactured can be minimized. The manufacturing cost of the light source substrate is saved.

Embodiment 2:

Referring to Figure 7, a second embodiment of the present invention provides a light source module 30' for use in a lighting device (not shown). The light source module 30' includes a lens 1', a light source substrate 2' assembled on the side of the lens 1', and a plurality of light-emitting units 3' disposed on the light source substrate 2' and facing the lens 1'. The difference in structure between the light source module 30' of the second embodiment and the light source module 30 of the first embodiment will be described in detail below.

As shown in Fig. 7, the lens 1' has a square spiral shape and includes only one optical portion 11'. Further, the shape of the lens 1' is merely illustrative, and is not limited to a square shape, and may be a circular shape, a triangular shape, a rectangular shape, a hexagonal shape, an octagonal shape or the like.

The light source substrate 2' is similar to the light source substrate 2 of the first embodiment, and may be a printed circuit board having conductive wiring. The configuration of the light source substrate 2' on the horizontal plane is substantially the same as that of the lens 1', and it is a unitary structure.

A drive power source assembly (not shown) is provided separately from the light source module 30', which can be disposed on a chassis (not shown).

The specific embodiments of the present invention have been described in detail with reference to the preferred embodiments of the present invention. All modifications, equivalents, improvements, etc., made within the spirit and scope of the invention are intended to be included within the scope of the invention.

Claims

A light source module comprising:

a spiral light source substrate, wherein the light source substrate is a unitary structure;

a plurality of light emitting units disposed on a surface of the light source substrate;

The light distribution element is detachably assembled with the light source substrate, and includes an optical portion that covers the light source substrate and distributes light for the light emitted by the light emitting unit.
The light source module according to claim 1, wherein the light source substrate includes a driving power supply unit located at a center and a light source unit extending in a spiral shape from the driving power supply unit.
The light source module according to claim 2, wherein the light distribution element further comprises a driving power source accommodating portion, the driving power source accommodating portion is over the driving power source portion, and the optical portion covers the light source Above the department.
The light source module according to claim 3, wherein the optical portion includes at least two mutually spaced ring portions, and the light source module includes a connecting portion that connects the ring portions.
The light source module according to claim 1, wherein a lower surface of the optical portion is provided with a recessed groove for accommodating the light source substrate and the light emitting unit.
The light source module according to claim 5, wherein the recessed groove has a bottom surface having an arcuate curved surface, the bottom surface is a light incident surface, and the optical portion has an upper surface having an arcuate curved surface, The upper surface is a light exit surface, and the curvature of the light incident surface is greater than the curvature of the light exit surface.
The light source module according to claim 5, wherein the recessed groove is an axisymmetric structure, and the plurality of light emitting units are eccentrically disposed in the recessed groove.
The light source module of claim 3, wherein the light source module further comprises a driving power supply component, wherein the driving power supply component is located on a surface of the driving power supply part and is received in the driving power supply receiving portion, and The light source substrate is electrically connected.
The light source module according to claim 1, wherein the light source substrate has a circular spiral shape or a square spiral shape.
The light source module according to claim 1, wherein the light distribution element is a lens.
The light source module according to claim 1, wherein the light source substrate is snap-connected to the optical portion.
The light source module according to claim 1, wherein the light source module further comprises a magnetic mounting component disposed inside the light distribution component.
The light source module according to claim 12, wherein the magnetic mounting member includes an adsorption portion, and the adsorption portion is a magnet.
A lighting device comprising the light source module according to any one of claims 1 to 13, a chassis connected to the light source module, and a mask connected to the chassis, wherein the light source module is disposed in a space formed by the connection of the chassis and the mask .
The lighting device of claim 14, wherein the light source module and the chassis are detachably connected by suction or screwing.