WO2018113399A1

WO2018113399A1 - Light source module

Info

Publication number: WO2018113399A1
Application number: PCT/CN2017/106587
Authority: WO
Inventors: 刘泽玉; 刘欢
Original assignee: 欧普照明股份有限公司
Priority date: 2016-12-20
Filing date: 2017-10-17
Publication date: 2018-06-28

Abstract

Provided is a light source module (100), comprising: a light emitting component, comprising at least two sets of light emitting units connected in parallel (31b,32b and 33b), wherein light emitting units in the same set are connected in series and have the same color temperature, and light emitting units in different sets have the different color temperature; a driving power source component (4b) connected to the light emitting component in series and is configured to output constant current to the light emitting component; a switch component, comprising switching units (71,72 and 73) on circuit branches where the light emitting units (31b, 32b, 33b) locate; and a controller (8), connecting the switch component to control the state of each switch. Compared with the prior art, the color temperature of the light emitted from the light source module can be adjusted by selectively turning on and off the switch unit; irrespective of the number of branches of the light emitting unit currently turned on, the entire light source module still operates through the invariable driving power source component, thereby the power of the light source module is kept constant, and the brightness of the light emitted by the light source module remains basically unchanged.

Description

Light source module

Technical field

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

Background technique

Currently, a lighting device capable of adjusting the color temperature of emitted light is widely used. In the prior art, the light source module of the illumination device generally includes at least two groups of light-emitting units, and the color temperatures of the light-emitting units in the same group are the same, and the color temperatures of the light-emitting units located in different groups are different. Each group of light-emitting units has an independent power supply circuit. By selectively turning on and off these power supply circuits, the light source module can emit light of different color temperatures to achieve an environment that matches different color temperature requirements.

However, since each group of illumination units in the illumination device has an independent power supply circuit, during the process of selectively turning on and off the power supply circuits to adjust the color temperature of the light emitted by the illumination device, a power supply circuit that is turned on may occur. The difference in the number of lighting causes the power of the lighting device to be not constant. The disadvantage that the power is not constant will destroy the lighting stability of the lighting device, so that the light intensity of the light emitted by the lighting device is suddenly large and small, resulting in an extreme sense of human eyes. Discomfort.

Summary of the invention

The present invention provides a light source module for overcoming the above problems or at least partially solving the above problems.

According to an aspect of the invention, a light source module is provided, comprising:

The light-emitting component comprises at least two groups of light-emitting units connected in parallel with each other, the light-emitting units in the same group are connected in series and the color temperature is the same, and the color temperatures of the light-emitting units in different groups are different;

Driving a power supply assembly in series with the lighting assembly and configured to output a constant current to the lighting assembly;

a switch assembly comprising a switch unit located on a branch road of each group of light emitting units;

A controller is coupled to the switch assembly, and the controller is operative to open and close any one of the switch units such that the light-emitting unit on the branch where the switch unit is located is turned on and off.

Preferably, the number of light units of each group is the same.

Preferably, the light source module further includes a light source substrate, and the light emitting unit is located on the light source substrate, and the light emitting units belonging to different groups are arranged at intervals.

Preferably, the light emitting component comprises three groups of light emitting units, and the three groups of light emitting units are respectively a cold light type, a daylight type, and a warm light type light emitting unit.

Preferably, the light-emitting component further comprises a group of light-emitting units of the same type as the cold light type or light-emitting units of the same warm light type.

Preferably, the controller establishes a connection with the preset terminal to acquire a control instruction from the preset terminal.

Preferably, the controller is connected to the driving power component to obtain power required for operation from the driving power module.

Preferably, the light emitting component, the switch component, and the driving power component are integrated on the same circuit board.

Preferably, the light emitting unit in the light emitting component is arranged in a ring shape, and the switch component and the driving power component are located inside the ring formed by the light emitting unit and connected to the light emitting component through the connecting portion.

Preferably, the connecting portion is rotatably connected to the light emitting component.

Preferably, the light source module further includes a light distribution component covering the light emitting component, and the light distribution component has an annular shape or a partial annular shape.

Preferably, the light source module includes a magnetic mounting component that connects the light emitting component.

According to another aspect of the present invention, a light source module is further provided, including:

a light source substrate, the light source substrate being annular or partially annular;

a light-emitting component comprising at least two groups of light-emitting units connected in parallel with each other, the at least two groups of light-emitting units being controllably selectively illuminated or simultaneously illuminated, the light-emitting unit being arranged on the light source substrate And is annular or partially annular;

a light distribution element covering the light emitting component and combining with the light source substrate;

Wherein, when each group of the light-emitting units is selectively lit and simultaneously illuminated, the difference in brightness of the light emitted by the light source module is within a preset difference range.

Preferably, the preset difference ranges from 10% to 15%.

Preferably, the light source module comprises a switch assembly, and the switch assembly comprises a switch unit located on a branch of each group of light-emitting units.

Preferably, the light source module includes a controller that connects the switch component, and the control The controller can be operatively turned on and off by any of the switching units such that each group of lighting units is selectively illuminated or illuminated simultaneously.

Compared with the prior art, the light source module provided by the embodiment of the present invention supplies power to at least two groups of light-emitting units with different color temperatures through a driving power supply unit that outputs a constant current, and sets a switching unit on a branch road of each group of the light-emitting units. Adjusting the color temperature of the light emitted by the light source module by selectively turning on and off the switch unit, and since the output power source is constant current and each group of light emitting units are connected in parallel, regardless of the currently turned on light unit How the number of branches changes, the entire light source module still works through a fixed driving power supply component, so that the power of the light source module is kept constant, and the brightness of the light emitted by the light source module remains substantially unchanged.

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:

1 is a perspective view of a light source module according to a first embodiment of the present invention;

Figure 2 is a cross-sectional view taken along line A-A of Figure 1;

Figure 3 is a partial enlarged view of B in Figure 2;

4 is an exploded view of a light source module according to a first embodiment of the present invention;

5 is an exploded view of another direction of the light source module according to the first embodiment of the present invention;

6 is an exploded view of a magnetic mounting component and a screw in a light source module according to a first embodiment of the present invention;

Figure 7 is a perspective view of a light source module according to a second embodiment of the present invention;

8 is an exploded view of a light source module according to a second embodiment of the present invention;

Figure 9 is a perspective view of a light source module according to a third embodiment of the present invention;

Figure 10 is an exploded view of a light source module according to a third embodiment of the present invention;

11 is a circuit block diagram of a light source module according to a third embodiment of the present invention;

The figure is labeled:

light source module

100, 100a, 100b,

lens

1, 1a, 1b, partition space 10,

edge portion

11, 11a, 11b, recessed groove 111, bottom surface 112, upper surface 113,

third opening

114a, 114b ,

intermediate portion

12, 12a, 12b, protruding portion 121, receiving groove 1211, first opening 122, second opening 123, connecting

portion

13, 13a, 13b, mounting portion 14, mounting hole 141, magnetic mounting member 15, joint portion 151, adsorption portion 152, buckle 16,

cover

17, 17a, 17b,

light source substrate

2, 2a, 2b, first substrate 201b, second substrate 202b, third substrate 203b, light source substrate 21, third wire 22, light

source portion openings

23a, 23b,

light emitting units

3, 3a 3b, the first group of light emitting units 31b, the second group of light emitting units 32b, the third group of light emitting units 33b, the driving

power source assemblies

4, 4a, 4b, the power source substrate 41, the connector 42, the first wire 43, the second wire 44 ,

cover plates

5, 5a, 5b,

first screws

61, 61a, 61b,

second screws

62, 62a, 62b, third screws 63, first switch unit 71, second switch unit 72, third switch unit 73, Controller 8.

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 those 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 FIGS. 1 to 6, the present embodiment provides a light source module 100 for use in a lighting device (not shown). Specifically, the light source module 100 includes a light distribution element 1 , such as 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 being disposed in the lens 1 . Drive power pack 4. Specifically, the light source substrate 2 is annular, and is surrounded by a receiving area. It should be noted that the light source module 100 can realize the illumination effect required by the illumination device, that is, the illumination device has a certain illumination range and a uniform illumination effect. Preferably, the lighting device may be a ceiling lamp (not shown) for indoor lighting, including a chassis and a mask connected to the chassis, and the light source module 100 is disposed in a space formed by the connection of the chassis and the mask. The specific structure of each component in the light source module 100 will be described in detail below.

As shown in FIGS. 1 and 5, the lens 1 in the light source module 100 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 made of glass. Of course, in other alternative embodiments, the lens 1 can also be a transparent and uniform thickness glass cover, having only a light transmitting function and a connecting function, and having no light distribution function.

The structure of the light source module 100 of the present invention will be further described in detail below.

As shown in FIG. 1 to FIG. 6, the lens 1 is a light distribution element which is substantially circular and includes a circular edge portion 11, an intermediate portion 12 which is in close contact with the inner side of the edge portion 11, and a connecting edge portion. 11 and two connecting portions 13 of the intermediate portion 12.

As shown in FIG. 2, FIG. 3 and FIG. 5, specifically, the edge portion 11 is an optical region for distributing light on the lens 1, covering the light source substrate 2 and distributing light for the light emitted from the light-emitting unit 3. The lower surface of the edge 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. At the same time, the edge of the lower surface of the edge portion 11 is provided with a plurality of snaps 16 for fixing the light source substrate 2, and the faces of the respective sections of the edge portion 11 in the extending direction thereof are uniform. As shown in FIG. 3, the recessed groove 111 has a bottom surface 112 having an arcuate curved surface, and the bottom surface 112 is a light incident surface. The edge portion 11 has an upper surface 113 having an arcuate curved surface, and the upper surface 113 is a light exiting surface. Further, the curvature of the light incident surface is greater than the curvature of the exit surface, that is, the light incident surface is more curved than the light exit surface.

As shown in FIG. 1 , FIG. 2 , FIG. 4 and FIG. 5 , the intermediate portion 12 is a driving receiving region for accommodating the driving power source assembly 4 on the lens 1 , and has a substantially square shape, and a part of the upper portion is arched upward from the lower surface. A protruding portion 121 is disposed on the protruding portion 121 at the same time for receiving the receiving slot 1211 of the driving power source assembly 4.

As shown in FIG. 4, the intermediate portion 12 is further provided with a first opening 122, and a cover 17 for sealing the first opening 122 is mounted on the first opening 122, and the cover 17 is locked to the middle portion by the first screw 61. The first opening 122 is sealed to prevent dust from falling into the intermediate portion 12. The position corresponding to the first opening 122 can be used to mount a control module (not shown). It should be noted that the control module may include a receiving component such as a signal for receiving a remote controller or a control terminal, a timer for controlling timing of lighting of the lighting device, etc., after the control module is installed, the first opening 122 is controlled by the control module. Sealing, at this time, the cover 17 can no longer be installed.

As shown in FIGS. 1, 4 and 5, the intermediate portion 12 has two apex regions formed by the intersection of two adjacent sides, each of the connecting portions 13 extending from the apex region of the intermediate portion 12 to the edge portion 11. The inside. The connecting portion 13 has a flat strip shape and is transparent. It should be noted that the light source substrate 2 may further include a portion extending into the connecting portion 13, and the connecting portion 13 serves as an optical region for distributing light. Of course, each of the connecting portions 13 may also be translucent or opaque, in which case the connecting portion 13 functions only as a connection.

Further, as shown in FIG. 4 and FIG. 5, the intermediate portion 12 and the connecting portion 13 have a ring-shaped side. The area enclosed by the edge portion 11 is divided into three partition spaces 10, which can facilitate the user of the light-removing light source module 100 to hold the light source module 100. In other embodiments, an intermediate portion 12 is provided. The two connecting portions 13 may divide the receiving area enclosed by the annular light source substrate 2 into two partition spaces, or when the number of the connecting portions 13 is n (where n is greater than 2), it is divided into n parts or n. +1 part. The arrangement of the connecting portion 13 not only enhances the structural strength of the light source module 100, but also allows the light distribution by the connecting portion 13 when necessary, or the mounting portion 14 is provided on the connecting portion 13 for positioning and mounting. The inner side of the edge portion 11 is uniformly provided with three arc-shaped mounting portions 14 in the circumferential direction thereof. The mounting portion 14 extends from the inner edge of the edge portion 11 into the receiving region, and the three mounting portions 14 are respectively provided with arc-shaped mounting. Hole 141. As shown in FIGS. 1 and 6, the light source module 100 further includes a magnetic mounting member 15 that is locked to the mounting portion 14 through the mounting hole 141 through the third screw 63, the head of the third screw 63. The magnetic mounting members 15 are respectively disposed on both sides of the mounting portion 14, and the magnetic mounting members 15 are positionally adjustably mounted to the mounting portion 14 through the arc-shaped mounting holes 141. The magnetic mounting member 15 includes a joint portion 151 and an adsorption portion 152. One end of the joint portion 151 is coupled with the third screw 63, and the other end of the joint portion 151 is provided with a circular groove (not shown), and the adsorption portion 152 is received in the concave portion. In the tank, the adsorption portion 152 is a strong magnet. In the present embodiment, the three magnetic mounting elements 15 are respectively located in different compartments 10. The mounting plate of the ceiling lamp is usually made of metal and can be pre-mounted on a ceiling or other mounting base. When the light source module 100 is installed, only the magnetic mounting component 15 needs to be adjusted to a proper position, and then the third screw 63 is locked to the mounting portion 14, so that the magnetic mounting component 15 does not move, and then the magnetic mounting component 15 is removed. It is adsorbed on the mounting plate of the ceiling lamp. Thus, the light source module 100 can be mounted on the mounting base. The light source module 100 is simple and convenient to install, and the connection is reliable. Of course, in other alternative embodiments of the invention, the number of mounting portions 14 may also be other values, such as four or five or more. In addition, the shape of the lens 1 is merely illustrative, and is not limited to a circular shape, and may be an elliptical shape, a triangular shape, a square shape, a rectangular shape, a hexagonal shape, an octagonal shape, or the like.

As shown in FIGS. 4 and 5, 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 an annular shape. The light source substrate 2 is fixed to the edge portion 11 by a snap 16 on the edge portion 11. The light source substrate 2 may have an integral annular shape or an annular shape formed by arranging a plurality of arc-shaped light source substrates 21 . When the multi-segment light source substrate 21 is spliced, the electrical connection between the adjacent two light source substrates 21 can be realized by the third wire 22, and A drive power supply unit 4 is driven. Of course, in other alternative embodiments, the multi-segment light source substrate 21 may not be connected by the third wire 22, but may be driven by a corresponding driving power source (not shown). The light source substrate 2 may further include a portion (not shown) provided in the connecting portion 13 and provided a light emitting unit (not shown) on the portion, or may be provided when the light source substrate 2 and the driving power source assembly 4 are separately disposed. The wires are routed in the connecting portion 13.

As shown in FIG. 2, FIG. 4 and FIG. 5, the driving power supply unit 4 is located in the receiving slot 1211, and includes a power substrate 41 and a plurality of components disposed on one or both sides of the power substrate 41, including but not limited to driving. A controller chip, a rectifier chip, a resistor, a capacitor, a fuse, a coil, and the like are disposed on the power substrate 41 in the form of a surface mount or a plug. The power source substrate 41 and the light source substrate 2 are integrally or separately disposed, and the power source substrate 41 is connected to the light source substrate 2 through the first wire 43. The power source substrate 41 is further connected with a second wire 44 for connection with an external power source, and the intermediate portion 12 is provided. There is a second opening 123 through which the second wire 44 passes.

As shown in FIG. 4, the power supply substrate 41 corresponding to the first opening 122 is further provided with a connector 42. The light source module 100 may further include a controller (not shown) disposed on the power substrate 41. The controller may It is directly plug-in connected to the connector 42, so that the controller is connected to the power source substrate 41. The controller may include a timer, a switch (not shown) that controls the lighting unit 3, a signal receiving element such as Bluetooth, infrared, or the like for receiving a remote controller or a control terminal. After the signal receiving component receives the signal, the controller controls the turning on, off, and timing of the lighting unit 3.

As shown in FIG. 4, the light source module 100 further includes a cover plate 5 mounted on the intermediate portion 12 and sealing the receiving groove 1211. The cover plate 5 may be made of a transparent insulating material and fixedly connected to the intermediate portion 12 by the second screw 62. In other alternative embodiments, the cover plate 5 can also be combined with the intermediate portion 12 and the edge portion 11 at the same time. The transparent material may be an insulating material such as polymethyl methacrylate (PMMA), polycarbonate (PC), polystyrene (PS), polyester resin (PET), or glycol modified polyester (PETG). The arrangement of the cover 5 can protect the drive power supply assembly 4 from making the drive power supply assembly 4 more secure and dust-proof.

2 and FIG. 3, the light-emitting unit 3 is an LED light-emitting unit, which can be mounted on the light source substrate 2 by Surface Mount Technology (SMT) or Through Hole Technology (THT). Upper surface. 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 along the extending direction of the light source substrate 2 or the edge portion 11. Need It is noted that a plurality of light-emitting units 3 are disposed below the edge 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. In addition, the light source module 100 emits light of uniform brightness by adjusting the size of the rounded corners of the substrate 2 and the number of the light-emitting units 3 at the rounded corners. Of course, as other alternative embodiments of the present invention, the plurality of light emitting units 3 may also be two rows or three rows or more.

Embodiment 2:

As shown in FIG. 7 and FIG. 8, a second embodiment of the present invention provides a light source module 100a for use in a lighting device (not shown). The light source module 100a of the second embodiment has substantially the same structure as the light source module 100 of the first embodiment. Specifically, the light source module 100a includes a lens 1a, a light source substrate 2a assembled on the lens 1a side, a plurality of light emitting units 3a disposed on the light source substrate 2a and facing the lens 1a, and a driving power source assembly 4a disposed in the middle of the lens 1a. A cover 17a connected to the lens 1a by the first screw 61a and a cover 5a connected to the lens 1a by the second screw 62a. The structural difference between the light source module 100a of the second embodiment and the light source module 100 of the first embodiment will be described in detail below.

As shown in FIGS. 7 and 8, the lens 1a is substantially circular in shape with the lens 1, and the lens 1a includes a circular edge portion 11a having a third opening 114a and an intermediate portion 12a abutting the inner side of the edge portion 11a. And two connecting portions 13a connecting the edge portion 11a and the intermediate portion 12a. The third opening 114a communicates with the inner and outer sides of the edge portion 11a. It should be noted that the same components of the lens 1a as those of the lens 1 will not be described herein. Further, the shape of the lens 1a is merely illustrative, and is not limited to a circular shape, and may be an elliptical shape, a triangular shape, a square shape, a rectangular shape, a hexagonal shape, an octagonal shape or the like.

As shown in FIGS. 7 and 8, the light source substrate 2a is similar to the light source substrate 2 of the first embodiment, and may be a printed circuit board having conductive lines. The configuration of the light source substrate 2a on the horizontal surface is substantially the same as that of the lens 1a, and is annular and has a light source portion opening 23a corresponding to the third opening 114a. The light source substrate 2a may be integrated or formed by splicing a plurality of light source substrates (not shown).

As shown in FIG. 7 and FIG. 8 , the driving power supply component 4 a and the driving power component 4 may be the same or similar, and details are not described herein. As shown in FIG. 8, similar to the light source module 100, the light source module 100a further includes a cover 5a mounted on the bottom of the power substrate 41a. The cover 5a may be made of a transparent insulating material and passed through the second screw 62a and the power source. The substrate 41a is locked. The light-emitting unit 3a of the present embodiment is the same as the light-emitting unit 3 and will not be described in detail herein.

Embodiment 3:

As shown in FIG. 9 and FIG. 10, a third embodiment of the present invention provides a light source module 100b for use in a lighting device (not shown). The light source module 100b of the third embodiment has substantially the same structure as the light source module 100 of the first embodiment. Specifically, the light source module 100b includes a lens 1b, a light source substrate 2b assembled on the lens 1b side, a plurality of light emitting units 3b disposed on the light source substrate 2b and facing the lens 1b, and a driving power source assembly 4b disposed in the middle of the lens 1b. A cover 17b connected to the lens 1b by the first screw 61b and a cover 5b connected to the lens 1b by the second screw 62b. The difference between the light source module 100b and the light source module 100 will be described in detail below.

As shown in FIGS. 9 and 10, the lens 1b is substantially circular in shape as the lens 1, and includes an edge portion 11b, an intermediate portion 12b that is in close contact with the inside of the edge portion 11b, and two connections of the connection edge portion 11b and the intermediate portion 12b. Part 13b. Specifically, the edge portion 11b is fitted to the light source substrate 2b, and the light source substrate 2b and the light emitting unit 3b are provided below the edge portion 11b. The edge portion 11b is a light distribution portion that can distribute light to the light emitted from the light-emitting unit 3b. In the present embodiment, the edge portion 11b includes three first edge portions 115b, a second edge portion 116b, and a third edge portion 117b which are spaced and arranged in an arc shape, and a third portion between the adjacent two spaced edge portions. Opening 114b. Of course, in other alternative embodiments, the first edge portion 115b, the second edge portion 116b, and the third edge portion 117b may also be joined end to end without spacing. The structure of the intermediate portion 12b of the lens 1b is the same as that of the intermediate portion 12 of the lens 1 of the first embodiment, and will not be described herein. In addition, the shape of the lens 1b is merely illustrative, and is not limited to a circular shape, and may be an elliptical shape, a triangular shape, a square shape, a rectangular shape, a hexagonal shape, an octagonal shape, or the like.

As shown in FIG. 9 and FIG. 10, the light source substrate 2b is similar in structure to the light source substrate 2, and may be a printed circuit board having conductive lines. The light source substrate 2b has a configuration on the horizontal surface which is substantially the same as the lens 1b, and has a light source portion opening 23b corresponding to the third opening 114b, so that the light source substrate 2b includes the first substrate 201b, the second substrate 202b, and the third. Substrate 203b.

As shown in FIG. 9 and FIG. 10, the driving power supply unit 4b and the light-emitting unit 3b may be the same as or similar to the driving power supply unit 4 and the light-emitting unit 3, and are not described herein.

It should be noted that the light source module 100 can be applied to a lighting fixture (not shown), such as a ceiling lamp. After the illumination lamp is activated, the light emitted by the light-emitting unit 3 in the light source module 100 passes through the light incident surface 112 of the edge portion 11 of the lens 1 and then undergoes an outward refracting. The line extends in a straight line in the edge portion 11 of the lens 1. When the light reaches the light exit surface 113, a second outward refracting occurs. After two outward refracting, the illumination angle of the light source module 100 is increased. Since the illumination angle of the light source module 100 is increased, even when the light-emitting unit 3 is not installed at the intermediate position of the light source substrate 2, the illumination lamp intermediate region can have a certain brightness. Compared with the prior art, in the case of maintaining the original brightness of the lighting fixture, the size of the light source substrate 2 carrying the light-emitting unit 3 in the light source module 100 can be reduced, and the number of the light-emitting units 3 can also be reduced, thereby reducing the light source mode. The manufacturing cost of group 100. In addition, since the driving power source can be mounted on the light source substrate 2 of the light source module 100 and housed in the receiving groove 1211 of the lens 1 , the space of the substrate 2 of the light source module 100 is fully utilized, and thus the light source including the driving power source is included. The module 100 can be assembled as a module into the housing of the lighting fixture. In addition, since the light source module 100 can be firmly adsorbed on the ceiling lamp through the magnetic mounting component 15, the installation is convenient and the connection is reliable. At the same time, the lens 1 on the light source module 100 also serves as an electrically insulating housing, which improves the safety level.

As shown in FIG. 11, the light source module 100b includes a light-emitting component (not labeled), and the light-emitting component includes at least two groups of light-emitting units that are connected in parallel with each other, that is, each group of light-emitting units have independent branches, and The number of each group of light-emitting units may be the same or different, and only the color temperature of the same group of light-emitting units is required to be the same, and the color temperatures of different groups of light-emitting units may be different.

In the embodiment of the present invention, the groups of the light-emitting components can be selectively lit or illuminated at the same time, and the light source module 100b is matched by the light-distributing component (not shown) regardless of the lighting state of the light-emitting component. The difference in brightness of the emitted light is always within the preset difference.

The preset difference range may be preset according to the illumination scene, for example, a lighting scene that is not very high in brightness requirement, and the preset difference range may be adaptively increased, so that the brightness difference of the light source module 100b is not excessive, the user It does not feel the change in the light intensity of the light, thus avoiding the discomfort of the human eye.

In the embodiment of the present invention, the preset difference range is 10% to 15%, for example, may be 15%, 10% or other values. For example, the light source module 100b is issued by a light distribution component (not shown). The difference in brightness of the light is 15% of the brightness value before the change. Subsequently, each group of light-emitting units is connected in series with the driving power source unit 4b in parallel to obtain a current required for operation from the driving power source unit 4b.

In practical applications, each group of light-emitting units are located on the same segment of the light source substrate, or may be located on different light source substrates. In the third embodiment of the present invention, each segment of the light source substrate only carries The same group of light-emitting units are used to distinguish between these light-emitting units.

In the third embodiment of the present invention, the illuminating component includes a first group of illuminating units 31b, a second group of illuminating units 32b, and a third group of illuminating units 33b. The color temperatures of the three groups of illuminating units are different and are respectively disposed in an independent light source. On the substrate. In practical applications, the three groups of light-emitting units are respectively a cold light type, a daylight type, and a warm light type light emitting unit.

Of course, the light-emitting component may further include other groups of light-emitting units, for example, a fourth group of light-emitting units (not shown), which are also cold-light type light-emitting units, and a fifth group of light-emitting units, which are also warm-light type light-emitting units. As shown in the figure), it is only necessary to ensure that the color temperatures of different groups of light-emitting units are different.

In the third embodiment of the present invention, the light source module further includes a switch component (not labeled), the switch component includes a switch unit located on a branch of each group of the light emitting units, and the light emitting component further includes a first group of light emitting units 31b and a second group. For example, the light-emitting unit 32b and the third group of light-emitting units 33b include a first switch unit 71, a second switch unit 72, and a third switch unit 73. The three switch units are respectively disposed in the branch where the three groups of light-emitting units are located.

Of course, in the embodiment of the present invention, the light-emitting units belonging to different groups are arranged at intervals, that is, the first group of light-emitting units 31b, the second group of light-emitting units 32b, and the third group of light-emitting units 33b are each arranged at intervals to form one. In combination, this combination is arranged in order to realize the arrangement of the light-emitting units belonging to different groups.

In practical applications, the switch unit can be an electronic switch such as a FET, and the switch assembly can also be integrated with the drive power component 4b onto the same circuit board.

The light source module further includes a controller 8 connected to each of the switch units in the light-opening assembly, and the controller 8 is electrically connected to the driving power source assembly 4b to obtain a current required for operation therefrom. In a practical application, the controller 8 can be a microprocessor, which can also be integrated with the switch assembly and the drive power pack 4b onto the same circuit board.

The controller 8 can be operative to turn on and off any of the switching units so that any one of the lighting units can be turned on and off as needed.

In practical applications, the controller 8 can establish wireless communication by using preset terminals such as a wired control panel, a wireless remote control, a smart phone, etc., to receive control commands input by the user from the devices, and analyze the control commands based on the preset control logic, and further Select to turn on and off each group of light units. Since the color temperatures of the respective groups of light-emitting units are different, it is possible to combine the light of the color temperature desired by the user.

In the third embodiment of the present invention, the driving power source component 4b is a constant current power source, regardless of the current location. The number of branches of the turned-on lighting unit changes, and the entire light source module still operates through a fixed driving power supply assembly, so that the power of the light source module remains constant. That is, no matter how the user adjusts the color temperature of the light emitted by the light source module, the light intensity of the light is not changed, and the discomfort of the human eye is avoided.

In summary, the light source module provided by the present invention can reduce the illumination angle of the light source by the lens to realize the illumination area and the illumination effect required by the illumination lamp, thereby having low cost and capable of reducing the illumination unit. Achieve the advantages of a certain lighting area and lighting effect. At the same time, the lens has a driving power receiving area, and the lens structure is fully utilized. Therefore, the light source module having the lens and the driving power source can be assembled as a module into the housing of the lighting fixture, and is mounted to the suction by the magnetic mounting component. On the ceiling light, the installation is convenient and the connection is reliable. Therefore, the light source module has the characteristics of easy installation, disassembly and replacement.

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:

The light-emitting component comprises at least two groups of light-emitting units connected in parallel with each other, the light-emitting units in the same group are connected in series and the color temperature is the same, and the color temperatures of the light-emitting units in different groups are different;

Driving a power supply assembly in series with the lighting assembly and configured to output a constant current to the lighting assembly;

a switch assembly comprising a switch unit located on a branch road of each group of light emitting units;

A controller is coupled to the switch assembly, and the controller is operative to open and close any one of the switch units such that the light-emitting unit on the branch where the switch unit is located is turned on and off.
The light source module according to claim 1, wherein the number of the light emitting units of each group is the same.
The light source module of claim 1 , wherein the light source module further comprises a light source substrate, wherein the light emitting unit is located on the light source substrate, and the light emitting units belonging to different groups are arranged at intervals.
The light source module according to claim 1, wherein the light emitting component comprises three sets of light emitting units, and the three sets of light emitting units are respectively a cold light type, a daylight type, and a warm light type light emitting unit.
The light source module according to claim 4, wherein the light-emitting assembly further comprises a group of light-emitting units of the same type as the cold light type or light-emitting units of the same warm light type.
The light source module of claim 1, wherein the controller establishes a connection with the preset terminal to acquire a control command from the preset terminal.
The light source module of claim 1, wherein the controller is connected to the driving power supply component to obtain power required for operation from the driving power supply module.
The light source module of claim 1, wherein the light emitting component, the switch component, and the driving power supply component are integrated on a same circuit board.
The light source module according to claim 1, wherein the light emitting unit in the light emitting unit is arranged in a ring shape, and the switch component and the driving power source component are located inside the ring formed by the light emitting unit and pass through the connecting portion. Connected to the lighting assembly.
The light source module of claim 9, wherein the connecting portion rotatably connects the light emitting assembly.
The light source module according to claim 1, wherein the light source module further comprises a light distribution element covering the light emitting component, and the light distribution element has an annular shape or a partial annular shape.
The light source module of claim 1, wherein the light source module comprises a magnetic mounting component that connects the light emitting component.
A light source module comprising:

a light source substrate, the light source substrate being annular or partially annular;

a light-emitting component comprising at least two groups of light-emitting units connected in parallel with each other, the at least two groups of light-emitting units being controllably selectively illuminated or simultaneously illuminated, the light-emitting unit being arranged on the light source substrate And is annular or partially annular;

a light distribution element covering the light emitting component and combining with the light source substrate;

Wherein, when each group of the light-emitting units is selectively lit and simultaneously illuminated, the difference in brightness of the light emitted by the light source module is within a preset difference range.
The light source module of claim 13, wherein the preset difference ranges from 10% to 15%.
The light source module of claim 13, wherein the light source module comprises a switch assembly, and the switch assembly comprises a switch unit located on a branch of each group of light emitting units.
The light source module according to claim 15, wherein said light source module comprises a controller connected to said switch assembly, said controller being operative to open and close any one of said switch units to cause each group to emit light The unit is illuminated or lit at the same time.