WO2022183819A1

WO2022183819A1 - Light source module and ceiling lamp

Info

Publication number: WO2022183819A1
Application number: PCT/CN2021/142456
Authority: WO
Inventors: 胡川; 魏彬; 朱奕光; 邱华敏; 钟观平; 蔡泽锋
Original assignee: 佛山电器照明股份有限公司
Priority date: 2021-03-04
Filing date: 2021-12-29
Publication date: 2022-09-09
Also published as: CN113007625A

Abstract

Disclosed in the present invention is a light source module, comprising a lens, a light source plate, and a power supply assembly. The lens is provided on the front surface of the light source plate. Th power supply assembly is provided on the back surface of the light source plate. The light emitting angle of the lens is larger than 160 degrees. According to the present invention, the power supply assembly is provided on the back surface of the light source plate, such that the influence of the power supply assembly on light emitting can be effectively avoided, the purpose of improving the light emitting effect is achieved, and dark spots are avoided. Moreover, because the power supply assembly is provided on the back surface of the light source plate, the front surface of the light source plate can be closer to a mask of the ceiling lamp during use, and the light emitting effect of the ceiling lamp can be affected, such that the structure of the lens is improved at the same time, the lens has a larger light emitting angle, an adverse effect which appears after the light source plate is close to the mask is eliminated, and the light emitting effect of the ceiling lamp is improved.

Description

Light source modules and ceiling lamps

technical field

The invention relates to the field of LED lighting, in particular to a light source module and a ceiling lamp.

Background technique

Ceiling light is a kind of light fixture. Because the top of the light fixture is relatively flat, and the bottom is completely attached to the roof during installation, it is called a ceiling light. The light sources of traditional ceiling lamps include ordinary white light bulbs, fluorescent lamps, high-intensity gas discharge lamps, and tungsten halogen lamps. With the development of science and technology, LED has been widely used as the light source of light in new lamps. However, due to historical reasons, many old lamps still use traditional light sources. In order to improve the lighting effect of the environment, in recent years, LED light source modules have been used to replace the old light sources, which have gradually become a more cost-effective light source. High old lamp retrofit scheme. The solution can easily replace the light source without changing the original decoration style and lamps, and can complete the jump from the old fluorescent tube to the LED lamp, which is simple and convenient, low cost and resource saving.

However, due to the unreasonable structure of the existing light source module, such as the power box protruding from the surface of the light source, dark spots may appear in the replaced ceiling lamp. Especially with the emergence of intelligent lamps, various functional modules are added to the inside of the power box, resulting in an increase in the volume of the power box, and the phenomenon of dark spots is more obvious, which affects the user's experience. At the same time, when the light source module is installed to the original ceiling lamp, it is inconvenient to install, and the existing ceiling lamp is often required to be removed as a whole before replacement, which increases the difficulty of replacement.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a light source module to solve one or more technical problems existing in the prior art, and at least to provide a beneficial option or create conditions.

The solution of the present invention to solve the technical problem is: a light source module, including a lens, a light source board and a power supply assembly, the lens is arranged on the front of the light source board, and the power supply assembly is arranged on the back of the light source board, so The light-emitting angle of the lens is greater than 160°.

The beneficial effects of the present invention are: by arranging the power supply components on the back of the light source board, the present invention can effectively avoid the influence of the power supply components on the light output, so as to achieve the purpose of improving the light output effect and avoid the generation of dark spots; at the same time, due to the power supply The component is arranged on the back of the light source board, which will make the front of the light source board closer to the mask of the ceiling lamp when in use, which will affect the light output effect of the ceiling lamp. A larger light-emitting angle can compensate for the adverse effect of the light source board being close to the mask and improve the light-emitting effect of the ceiling lamp.

As a further improvement of the above technical solution, the lens includes a plurality of lens units, the lens unit includes a main body, and the main body includes a light emitting portion, the light emitting portion is in the shape of a truncated cone, and the front of the light emitting portion is provided with a light emitting surface, The light emitting surface is a flat surface, and the light emitting part is provided with a concave cavity, the concave cavity includes an opening, and the opening faces the back of the lens unit; the concave cavity includes a first groove and a second groove , the first groove is rectangular, the depth of the first groove is h, and the range of h is 0.60mm-0.85mm; the second groove is conical, and the second groove is in the shape of a cone. The radius gradually decreases from the open end to the light-emitting surface, the maximum inner diameter of the second groove is D, and the range of D is 3.5-3.9 mm.

In order to make the lens have a larger light-emitting angle, the shape structure of the single lens unit is optimized in this solution.

As a further improvement of the above technical solution, the light source board includes several lamp beads, all the lamp beads are divided into at least two groups of light-emitting units, the light-emitting units of each group of light-emitting units are arranged in a ring with equal spacing, and all the light-emitting units are from the inside to the outside. Arranged in sequence, and the spacing between the lamp beads of the light-emitting units located on the inner side is greater than the spacing of the lamp beads of the light-emitting units located on the outer side. The lamp beads are arranged in a ring, which can make the light output more uniform, and the arrangement of the lamp beads on the inner side should be sparser than the arrangement of the lamp beads on the outer side, so that the light source module can emit light more uniformly when in use.

As a further improvement of the above technical solution, it also includes a magnet seat, the height of the magnet seat is higher than that of the power supply assembly, a magnet block is arranged in the magnet seat, and the magnet seat is installed on the back of the light source board . By adding a magnet structure on the light source module, the light source module is mounted on the ceiling lamp by using the magnet, which improves the installation efficiency of the light source module.

As a further improvement of the above technical solution, the lens includes a light source installation cavity and a magnet installation cavity, the light source board is fixedly installed in the installation cavity, and the magnet base is installed in the magnet installation cavity. The light source board and the magnet base are respectively installed on the lens, which can make the product consistency better and the product assembly more flexible and convenient.

As a further improvement of the above technical solution, the magnet installation cavity includes a connection column, and the connection column is provided with an inner thread, and the magnet seat is installed in the magnet installation cavity by a screw.

As a further improvement of the above technical solution, the lens includes a clamping column, the light source plate is provided with a clamping hole, and the light source plate is connected with the lens through a buckle; the magnet base and the light source assembly are bonded to the light source the back of the board. The connection between the light source board and the lens is completed by using the clamping column, which can improve the installation efficiency.

As a further improvement of the above technical solution, the lens is in the shape of a circular ring, the outer periphery of the lens is provided with a buckle, the inner periphery of the lens is provided with a mounting post, and the mounting post is provided with an internal thread, and the mounting A clamping block is also arranged outside the column; the light source plate is circular, and a through hole is arranged in the light source plate, the outer circumference of the light source plate is connected with the buckle position, and the installation column passes through the through hole. and the clamping block is connected with the light source board by snapping; the magnet base is fixed in the mounting post by screws.

As a further improvement of the above technical solution, the power supply assembly includes a power supply board and a housing, the power supply board is fixed in the housing, and the housing is mounted on the back of the light source board.

At the same time, the present invention also provides a ceiling lamp applying the above-mentioned light source module.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly describes the accompanying drawings that are used in the description of the embodiments. Obviously, the described drawings are only a part of the embodiments of the present invention, but not all of the embodiments, and those skilled in the art can obtain other design solutions and drawings according to these drawings without creative work.

1 is a schematic perspective view of Embodiment 1 of the present invention;

2 is an exploded view of Embodiment 1 of the present invention;

Fig. 3 is the structure schematic diagram of the lens unit of the present invention;

4 is a light-emitting effect diagram of the lens unit of the present invention;

Fig. 5 is the light emitting effect diagram of the lens of the existing light source module;

Fig. 6 is the three-dimensional schematic diagram of the second embodiment of the present invention;

7 is an exploded view of Embodiment 2 of the present invention;

FIG. 8 is an exploded view of Embodiment 3 of the present invention.

Detailed ways

The concept, specific structure and technical effects of the present invention will be clearly and completely described below with reference to the embodiments and accompanying drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative efforts are all within the scope of The scope of protection of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The function of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but It should not be construed as limiting the protection scope of the present invention.

In the description of the present invention, it should be understood that the azimuth description, such as the azimuth or position relationship indicated by up, down, front, rear, left, right, etc., is based on the azimuth or position relationship shown in the drawings, only In order to facilitate the description of the present invention and simplify the description, it is not indicated or implied that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including this number, above, below, within, etc. are understood as including this number. If it is described that the first and the second are only for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance, or indicating the number of the indicated technical features or the order of the indicated technical features. relation.

In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution. At the same time, various technical features in the present invention can be combined interactively on the premise of not contradicting each other.

Embodiment 1, referring to FIGS. 1 to 3 , a light source module includes a lens 100, a light source board 200, a power supply assembly 300 and a magnet holder 400. The lens 100 is roughly triangular in shape, and the center of the lens 100 is hollow. The lens 100 includes a light source installation cavity 110 and a magnet installation cavity 120. The lens 100 is provided with a baffle 101 around the light source installation cavity 110. There are three light source installation cavities 110 and magnet installation cavities 120. There are three boards 200, and the three light source boards 200 are respectively installed in the three light source installation cavities 110. The front of the light source board 200 is provided with a plurality of lamp beads, and the light source installation cavity 110 is provided with a plurality of lamp beads. There are three lens units 130, the lamp beads are in one-to-one correspondence with the lens units 130; there are also three magnet holders 400, and magnets 500 are fixed in the three magnet holders 400, and the magnet holders 400 are installed In the magnet installation cavity 120, the magnet base 400 and the light source board 200 can be fixed on the lens 100 by bolts or screws. In other embodiments, the magnet base can also be integrally injection molded with the lens; in the light source board 200 The power supply assembly 300 is provided on the back of the device. The power supply assembly 300 includes a power supply board 310 and a housing 320. The power supply board 310 can be a linear power supply board or a power supply board with a traditional structure, which is fixed on the In the case 320 , the case 320 is installed on the back of the light source board 200 . The power board 310 is electrically connected to the light source board 200 . Meanwhile, the light-emitting angle of the lens 100 is greater than 160°.

In order to achieve a light-emitting angle of more than 160° for the lens 100 , specifically, the lens structure of the present application is as follows: the lens unit 130 has a rotating body structure, and includes a main body 131 , and the main body 131 includes a light emitting part 132 , and the light emitting part The front surface of 132 is provided with a light-emitting surface 133, the light-emitting surface 133 is a curved surface, the light-emitting surface 133 is an arched curved surface formed by rotating along its central axis, and its center is the highest point of the lens. on the central axis of the light-emitting surface. The light exit portion 132 is provided with a cavity 140, the cavity 140 includes an opening 143, and the opening 143 faces the back of the lens unit 130; the cavity 140 includes a first groove 141 and a second groove 142, The first groove 141 is rectangular or trapezoidal, the depth of the first groove 141 is h, and the range of h is 0.60mm˜0.85mm. Specifically, the h may be 0.65mm, 0.70mm, 0.75mm, 0.80mm. Preferably, in this embodiment, the depth of the first groove 141 is 0.8 mm; the second groove 142 has a rotating body structure, and the radius of the second groove 142 gradually decreases from the end of the opening 143 to the light exit surface 133 and the central axis of the second groove coincides with the central axis of the light emitting surface. The maximum inner diameter of the second groove 142 is D, and the range of D is 3.5-3.9 mm. Specifically, the D is 3.6 mm, 3.7 mm, and 3.8 mm. Preferably, in this embodiment, the maximum inner diameter of the second groove 142 is 3.8 mm.

During installation, the center of the lamp bead is located on the central axis of the lens unit 130 . The light emitted by the lamp bead enters the lens unit 130 after passing through the cavity 140 . Referring to FIG. 4 , and comparing with FIG. 5 , it can be seen that after the lens unit of this solution is adopted, a light-emitting effect with a light-emitting angle greater than 160° can be obtained.

Preferably, the lamp beads in this embodiment are lamp beads in which round cups are arranged side by side. For example, the 2835-6500K lamp beads of National Star, the light-emitting chips of the lamp beads are arranged side by side, and the lamp beads are packaged in a round cup shape, which can make the light output uniformity of the light source module better.

When the light source module needs to be applied to the traditional ceiling lamp, first remove the mask of the ceiling lamp, then remove the light source in the existing ceiling lamp, and then connect the wires on the chassis of the ceiling lamp with the light source The power supply components of the module are electrically connected, and then the light source module is directly adsorbed on the chassis by a magnet (in the existing ceiling lamps, most of the chassis are iron chassis). Of course, in order to enable the magnet to firmly attract the chassis, the height of the magnet base is greater than the height of the housing of the power supply assembly. Finally, put the mask back on. After installation and power on, the traditional ceiling light can be transformed into an LED ceiling light. Since there is no obstruction on the light-emitting surface of the light source module, the light emitted by the LED ceiling lamp will not appear dark spots.

Since the light source module is provided with a power supply component on the back of the light source board, the light emitting surface of the light source board will be closer to the surface of the mask. If the existing traditional lens is used, the light emitting surface will be too close to the mask, which will make the LED absorb The uniformity of the light output of the dome light becomes worse. For this reason, in this embodiment, the structure of the lens is optimized, so that the light source module has a larger light-emitting angle, so that the light output of the overall LED ceiling lamp is uniform without changing the existing LED chassis and mask structure. Sex is better.

As a further preferred embodiment, the magnet installation cavity 120 includes a connection post 121, and the connection post 121 is provided with an internal thread, and the magnet base 400 is installed in the magnet installation cavity by means of screws. The connection strength between the magnet base 400 and the lens 100 can be improved by adding the connecting column 121 .

In this embodiment, the housing 320 is mounted on the back of the light source board 200 by means of bonding; in addition, in some embodiments, the housing 320 can also be fixed by rivets, snaps or bolts. The casing 320 is fixed on the light source board 200 ; alternatively, the casing 320 can be fixed on the magnet base 400 . At the same time, in this embodiment, the power board 310 may be fixed in the housing 320 by means of snaps or adhesives.

In this embodiment, the electrical connection between the power board 310 and the light source board 200 can be various, for example, wire connection, terminal connection, pin connection, spring connection, or FPCB connection.

The second embodiment, referring to FIG. 5 and FIG. 6 , is a light source module. The light source module of this embodiment has a similar structure of the lens unit 130 to that of the first embodiment, but the shape of the lens 100 is different from that of the first embodiment. In the second embodiment, the lens 100 is square as a whole, the middle of the lens 100 is also hollowed out, and a ring-shaped light source board 200 is disposed on the back of the lens 100 . In this embodiment, the back of the lens 100 is not provided with a magnet seat mounting cavity, the magnet seat 400 is directly bonded to the back of the light source board 200 , and the power component 300 is also directly bonded to the back of the light source board 200 .

Different from the first embodiment, the light source board 200 and the lens 100 are connected by a snap connection through the clamping column 150. Specifically, the light source board 200 is provided with a clamping hole 210, and the clamping column 150 includes a plurality of Each of the claws has a certain elasticity, and the upper end of the claws is provided with a guiding inclined surface. During installation, the clamping post 150 is directly aligned with the clamping hole, and then the light source board 200 is installed on the lens 100 . After the light source board 200 is installed, the magnet base 400 and the power supply assembly 300 are then bonded. Of course, in addition to bonding, the magnet holder 400 can also be fixed on the back of the light source board 200 by means of snap connection, screw installation or the like.

Referring to FIG. 7 , in the third embodiment, in this embodiment, the light source board 200 is circular, and the lens 100 is circular, and a plurality of buckles 160 are provided on the outer periphery of the lens 100 , inside the lens 100 . A mounting post 170 is provided on the circumference, an internal thread is provided in the mounting post 170, and a clamping block 171 is provided outside the mounting post 170; the light source board 200 is provided with a through hole 220, and the light source board 200 has The outer periphery is connected with the buckle position 160 through a snap connection, the mounting post 170 passes through the through hole 220 and the locking block 171 is connected with the light source board 200 through a snap connection. Meanwhile, the magnet base 400 is mounted on the mounting post 170 by screws. At this time, the mounting post 170 plays a role of connecting the light source board 200 and the magnet base 400 at the same time, and the structure of the product is more compact.

In the above three embodiments, magnets are used to fix the light source module and the chassis. In other embodiments, other methods such as glue and screws can also be used for fixing, which will not be repeated here.

In addition, in the above three embodiments, the magnet bases are all fixed on the lens. In other embodiments, at least one of the magnet bases can also be fixed on the power supply assembly. The installation method of the solid can be adjusted according to actual needs. limited to this embodiment.

No matter which embodiment is adopted, as a further preferred embodiment, the light source board 200 includes a plurality of lamp beads, all the lamp beads are divided into at least two groups of light-emitting units, and the lamp beads of each group of light-emitting units are arranged in a circular and equidistant arrangement, All the light-emitting units are arranged in sequence from the inside to the outside, and the distance between the lamp beads of the light-emitting units located on the inner side is greater than the distance between the lamp beads of the light-emitting units located on the outside. The lamp beads are arranged in a ring, which can make the light output more uniform, and the arrangement of the lamp beads on the inner side is sparser than the arrangement of the lamp beads on the outer side, so that the light source module can emit light more evenly when in use.

The preferred embodiments of the present invention have been specifically described above, but the present invention is not limited to the described embodiments, and those skilled in the art can also make various equivalent modifications or substitutions without departing from the spirit of the present invention, These equivalent modifications or substitutions are all included within the scope defined by the claims of the present application.

Claims

The light source module includes a lens, a light source board and a power supply assembly, and is characterized in that: the lens is arranged on the front of the light source board, the power supply assembly is arranged on the back of the light source board, and the light-emitting angle of the lens is greater than 160° °.
The light source module according to claim 1, wherein the lens comprises a plurality of lens units, the lens unit comprises a main body, the main body comprises a light emitting part, the front of the light emitting part is a light emitting surface, and the The light emitting surface is a curved surface, the light emitting part is provided with a concave cavity, the concave cavity includes an opening, and the opening faces the back of the lens unit; the concave cavity includes a first groove and a second groove, the first groove The depth of the groove is h, and the range of h is 0.60mm to 0.85mm; the radius of the second groove gradually decreases from the open end to the light-emitting surface, and the maximum inner diameter of the second groove is D, so The range of D is 3.5-3.9mm.
The light source module according to claim 2, wherein the light source board includes a plurality of lamp beads, all the lamp beads are divided into at least two groups of light-emitting units, and the lamp beads of each group of light-emitting units are arranged in a ring with equal spacing , all the light-emitting units are arranged in sequence from the inside to the outside, and the spacing between the lamp beads of the light-emitting units located on the inner side is greater than the spacing of the lamp beads of the light-emitting units located on the outside.
The light source module according to claim 1, further comprising a magnet base, the height of the magnet base is higher than that of the power supply assembly, a magnet block is arranged in the magnet base, and the magnet base is installed on the back of the light source board.
The light source module according to claim 4, wherein the lens comprises a light source installation cavity and a magnet installation cavity, the light source board is fixedly installed in the installation cavity, and the magnet base is installed in the magnet installation cavity in the cavity.
The light source module according to claim 5, wherein the magnet mounting cavity comprises a connecting column, the connecting column is provided with an inner thread, and the magnet base is mounted in the magnet mounting cavity by a screw.
The light source module according to claim 4, wherein the lens comprises a clamping column, the light source plate is provided with a clamping hole, and the light source plate is connected with the lens through a buckle; the magnet base and the light source The assembly is glued on the back of the light source board.
The light source module according to claim 4, wherein the lens is in the shape of a circular ring, the outer periphery of the lens is provided with a buckle, the inner periphery of the lens is provided with a mounting post, and the mounting post is provided with There are internal threads, and there is a clamping block outside the mounting column; the light source board is circular, a through hole is arranged in the light source board, the outer circumference of the light source board is connected with the buckle position, and the light source board is buckled. The mounting post passes through the through hole, and the clamping block is snap-connected with the light source board; the magnet seat is fixed in the mounting post by screws.
The light source module according to claim 1, wherein the power supply assembly comprises a power supply board and a housing, the power supply board is fixed in the housing, and the housing is mounted on the back of the light source board.
The ceiling lamp includes a chassis and a face shield, and is characterized in that: it further includes the light source module according to any one of the above claims 1-9, and the light source module is installed on the chassis.