CN211289621U

CN211289621U - Lighting device

Info

Publication number: CN211289621U
Application number: CN201921550883.8U
Authority: CN
Inventors: 陈辉; 张权; 张宇飞
Original assignee: Appotronics Corp Ltd
Current assignee: Shenzhen Appotronics Corp Ltd; YLX Inc
Priority date: 2019-09-16
Filing date: 2019-09-16
Publication date: 2020-08-18
Anticipated expiration: 2029-09-16
Also published as: WO2021052048A1

Abstract

The application discloses a lighting device, which comprises a printed circuit board and a light emitting diode chip, wherein the light emitting diode chip is arranged on the printed circuit board; the lens support is fixed on one side of the printed circuit board, which is provided with the light-emitting diode chip, and is provided with a through hole which is arranged opposite to the light-emitting diode chip; the first lens module comprises one or more first lens units arranged in the through hole and is used for collecting light rays emitted by the light emitting diode chip for the first time; and the second lens module is fixed on one side, far away from the printed circuit board, of the lens support and is used for collecting the light rays collected for the first time for the second time. The lighting device has the advantages of simple structure, convenience in assembly, low price and good optical effect.

Description

Lighting device

Technical Field

The application relates to the technical field of semiconductor lighting, in particular to a lighting device.

Background

Light emitting diodes are small, have low power consumption and long life cycles, and have the availability of three primary colors. With the development of light emitting diode technology, light emitting diode light sources can be used in more and more places, and meanwhile, the requirements on the light emitting diode light sources are also continuously improved.

The inventor of the present application has found in long-term research and development that the existing led lighting device has a complicated structure, high cost and poor optical effect.

SUMMERY OF THE UTILITY MODEL

The technical problem that this application mainly solved provides a lighting device to simplify the device structure, improve the optical effect of illumination.

In order to solve the technical problem, the application adopts a technical scheme that: provided is a lighting device including: the LED chip is arranged on the printed circuit board; the lens support is fixed on one side of the printed circuit board, which is provided with the light-emitting diode chip, and is provided with a through hole which is arranged opposite to the light-emitting diode chip; the first lens module comprises one or more first lens units arranged in the through hole and is used for collecting light rays emitted by the light emitting diode chip for the first time; and the second lens module is fixed on one side, far away from the printed circuit board, of the lens support and is used for collecting the light rays collected for the first time for the second time.

The lens support comprises a bottom plate, the through hole is formed in the bottom plate, at least one boss is arranged on each of two opposite sides of the bottom plate, and the second lens module is fixed on the boss.

The boss is provided with a buckling part, the buckling part comprises a first side wall, a second side wall and a third side wall, the first side wall and the third side wall are arranged oppositely, the second side wall is connected with the first side wall and the third side wall, and the outer edges of the first side wall, the second side wall and the third side wall are flush with the outer edge of the boss.

One side of the boss, which is far away from the bottom plate, is provided with an accommodating cavity, and the accommodating cavity is used for accommodating the colloid so as to fix the second lens module.

Wherein, at least one boss includes two bosss that the interval set up, the second lateral wall sets up on two bosss, buckling part still includes the fourth lateral wall, the fourth lateral wall connect the second lateral wall and with the first lateral wall with the third lateral wall interval sets up, the outer fringe of fourth lateral wall with the outer fringe parallel and level of boss, wherein, the length of fourth lateral wall is less than the length of first lateral wall with the third lateral wall.

The two opposite sides of the second lens module are provided with lap joint parts, the lap joint parts are fixed on the bosses and are abutted against the buckling parts to fix the second lens module.

Wherein an area of a cross section of the through hole in a direction away from the printed circuit board is gradually increased.

And a chamfer is arranged at the edge of one side of the through hole, which is far away from the printed circuit board.

And a dispensing groove is further formed in one side, away from the printed circuit board, of the bottom plate, and the dispensing groove is adjacent to and communicated with the through hole.

Wherein, the second lens module is designed by integral molding.

The beneficial effect of this application is: be different from prior art, set up the emitting diode chip on printed circuit board among the lighting device of this application, make the emitting diode chip can normally give out light, one side that is equipped with the emitting diode chip at printed circuit board is fixed with the lens holder, set up first lens unit in the through-hole of lens holder, in order to carry out the first time to the light that the emitting diode chip sent and collect the transmission, be fixed in the second lens module and carry out the secondary transmission with the light through the first time transmission on the lens holder, the light that the emitting diode chip sent has better optical effect after twice transmission. And the lighting device of the application has the advantages of simple structure, convenience in assembly and low cost.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of a lighting device according to the present application;

FIG. 2 is a schematic view of the exploded structure of the lighting device of FIG. 1;

FIG. 3 is a perspective view of the lens holder of FIG. 2;

FIG. 4 is a schematic top view of the lens holder of FIG. 2;

FIG. 5 is a schematic top view of the second lens of FIG. 2;

FIG. 6 is a schematic side view of the second lens of FIG. 2;

FIG. 7 is a schematic top view of a boss and a fastening portion of another embodiment of the lighting device of the present application;

fig. 8 is a schematic top view of a boss and a fastening portion of a lighting device of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

With the development of semiconductor solid light source technology and the increasing prominence of the problems of energy shortage, global warming and the like which bother the world in recent years, semiconductor light emitting diode light sources are widely applied in various industries due to the advantages of energy conservation, environmental protection, controllable brightness and color temperature and the like, and people increasingly apply light emitting diode lighting devices to various environments as light sources. The application provides a lighting device, and the lighting device is applied to high-end lighting sources and can keep long-time high-power and high-brightness work.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an embodiment of a lighting device of the present application, and fig. 2 is an exploded structural diagram of the lighting device in fig. 1. The lighting device of the embodiment comprises: the lens module includes a printed circuit board 10, a light emitting diode chip (not shown), a lens holder 20, a first lens module 30 and a second lens module 40, wherein the first lens module 30 includes a plurality of first lens units, and the second lens module 40 includes a plurality of second lens units integrally formed.

Specifically, the light emitting diode chip is disposed on the printed circuit board 10. The printed circuit board 10 has conductive traces thereon, and the led chip can be mounted on the printed circuit board 10 by surface mount technology or package-in-package technology. The led chip is powered by the conductive circuit on the printed circuit board 10, so that the led chip can emit light normally. In a specific embodiment, a plurality of led chips are disposed on the pcb 10 in an array arrangement. In other embodiments, the light emitting diode chips may also be arranged in other manners, and may be specifically configured according to actual situations, which is not specifically limited herein.

The lens holder 20 is fixed to the printed circuit board 10 at the side where the light emitting diode chip is provided. The lens holder 20 is used to fix the first lens unit and the second lens module 40. In the present embodiment, a mounting hole is provided on the printed circuit board 10, and a screw hole is provided on the lens holder 20, wherein the screw hole is coaxially provided with the mounting hole and is used for receiving a fastener to be screwed in to fix the lens holder 20 on the printed circuit board 10. Optionally, the number of the threaded holes and the number of the mounting holes are respectively 6, and the lens support 20 is fixed on the printed circuit board 10 by adopting a countersunk head screw locking method, so that the structural strength and the overall rigidity of the lighting device can be well ensured, the printed circuit board 10 can be in maximum area contact with a bottom radiator (not shown), and the radiator design can be simplified. In other embodiments, the lens holder 20 may be directly bonded to the printed circuit board 10 for ease of manufacturing.

Referring to fig. 3 and 4 again, fig. 3 is a schematic perspective view of the lens holder 20 in fig. 2, and fig. 4 is a schematic top view of the lens holder 20 in fig. 2. The lens support 20 is provided with a through hole 21, and the position of the through hole 21 corresponds to the position of the light emitting diode chip. The first lens unit is disposed in the through hole 21 and is used for collecting and transmitting light emitted by the light emitting diode chip for the first time. The second lens module 40 is fixed on the side of the lens holder 20 away from the printed circuit board 10, and is used for performing the second collection and transmission of the light collected and transmitted by the first lens unit, wherein the divergence angle of the emergent light can be controlled by designing the curvature of the first lens unit and the curvature of the second lens unit. In the embodiment, the connection and fixation of the lighting device are completed by using the porous lens support 20, the structure is simple and reliable, and the manufacturing and assembling tolerance minimization of the parts of the lighting device is facilitated.

In order to fix the first lens 30 in the through hole 21, the through hole 21 is processed with high precision, and the area of the cross section of the through hole 21 in the direction away from the printed circuit board 10 is gradually increased. Preferably, the through hole 21 may be provided in a reverse tapered shape, and the reverse tapered through hole 21 enables the first lens unit to be clamped more tightly. In other embodiments, the through hole 21 may also be cylindrical, square, or the like, and the through hole 21 may also be irregular, as long as the plurality of first lens units included in the first lens module 30 can be fixed.

As shown in fig. 3 and 4, the lens holder 20 includes a bottom plate 25, and the through-hole 21 is provided on the bottom plate 25. Optionally, a dispensing slot 24 is disposed on a side of the bottom plate 25 away from the printed circuit board 10, the dispensing slot 24 is disposed adjacent to and communicated with the through hole 21, and the dispensing slot 24 is configured to implement adhesive fixation through dispensing after the first lens unit is placed in the through hole 21 and the position of the first lens unit is adjusted. Preferably, each through hole 21 is provided with 2 spot gluing grooves 24 at the periphery, and the 2 spot gluing grooves 24 are positioned at two opposite sides of the through hole 21, so that the stress of the first lens unit is more uniform. In other embodiments, each through hole 21 may be further configured with 1, 3, 4 glue dispensing grooves, etc., and is not limited herein.

Further, a chamfer may be provided at an edge of the through hole 21 away from the printed circuit board 10, preferably, the chamfer has an angle ranging from 30 degrees to 60 degrees to facilitate guiding placement of the first lens unit.

At least one boss 22 is respectively arranged on two opposite sides of the bottom plate 25, and the second lens module 40 is fixed on the boss 22. The number of the bosses 22 arranged on one side of the bottom plate 25 can be 1, 2, 3, etc., and the bosses can be specifically arranged according to actual needs. In the present embodiment, the boss 22 is integrally formed with the base plate 25, and it is understood that in other embodiments, the boss may be fixed to the base plate 25 by adhesion, and in another embodiment, the boss 22 may be fixed to the base plate 25 by means of screws and screw holes. When the second lens module 40 is adhered to the boss 22, an accommodating cavity 221 may be disposed on a side of the boss 22 away from the bottom plate 25, and the accommodating cavity 221 is used for fixing the second lens module 40 by dispensing.

In this embodiment, two bosses 22 are respectively disposed on two sides of the lens holder 20 at intervals, and further, in order to fix the second lens module 40 better, a fastening portion is disposed on the boss 22 for abutting against the second lens module 40. Specifically, the fastening portion includes a first sidewall 231, a second sidewall 232, and a third sidewall 233, the first sidewall 231 is disposed opposite to the third sidewall 233, the second sidewall 232 connects the first sidewall 231 and the third sidewall 233, and outer edges of the first sidewall 231, the second sidewall 232, and the third sidewall 233 are flush with an outer edge of the boss 22.

The first sidewall 231 is used for realizing lateral limit of the second lens module 40, the second sidewall 232 is used for realizing transverse limit of the second lens module, the third sidewall 233 is used for abutting against the second lens module 40, the length of the third sidewall 233 is smaller than that of the first sidewall 231, so that a gap is reserved between the second lens module 40 and the second sidewall 232, and the glue can be conveniently placed into the accommodating cavity 221 from the gap to fix the second lens module 40.

In another embodiment, a baffle 235 may be further disposed between the two bosses 22, and three continuous edges of the baffle 235 connect the two bosses 22 and the bottom plate 25, respectively. Preferably, the outer edge of the baffle 235 is flush with the outer edge of the boss 22, and the height of the baffle 235 relative to the base plate 25 is smaller than the height of the boss 22 relative to the base plate 25, so that when the second lens module 40 is fixed on the boss 22, a notch is formed on the side of the baffle 235 away from the base plate 25. When the lighting device needs to be disassembled, the second lens module 40 can be taken down from the lens bracket 20 from the gap, so that the disassembly and maintenance of the lighting device are more convenient.

As shown in fig. 5 and 6, fig. 5 is a schematic top view of the second lens module 40 in fig. 2, and fig. 6 is a schematic side view of the second lens module 40 in fig. 2. The two opposite sides of the second lens module 40 are provided with overlapping portions 41, and the overlapping portions 41 are fixed on the bosses 22 and abut against the buckling portions to fix the second lens module 40. The lens holder 20 can be adhered to the boss 22 by the overlapping portion 41, and in another embodiment, the lens holder 20 can be fixed to the boss 22 by the overlapping portion 41 through the screw and screw hole matching. In one embodiment, the overlapping portion 41 is a flange thin edge structure for height positioning and adhesive fixation, and the thin edge with a certain thickness ensures the support and thermal strength of the second lens module 40 and satisfies the function of glue hiding.

In this embodiment, the length of the side of the overlapping portion 41 close to the second sidewall 232 is less than the length of the side of the overlapping portion 41 away from the second sidewall 232, so as to form a limiting notch 411 on two opposite sides of the overlapping portion 41, and the limiting notch 411 enables the second lens module 40 to better abut against the buckling portion.

For the convenience of assembly and disassembly, the second lens module 40 is integrally formed. The second lens unit included in the second lens module 40 may have the same specification as the first lens unit. In other embodiments, the specification of the second lens unit may also be different from that of the first lens unit, and the specific specifications of the second lens unit and the first lens unit may be specifically selected according to actual requirements, and are not specifically limited herein.

It is different from the prior art, the led chip is disposed on the pcb 10 in the lighting device of the embodiment of the present application, so that the led chip can emit light normally, the lens holder 20 is fixed on one side of the pcb 10 where the led chip is disposed, the first lens module 30 is disposed in the through hole 21 of the lens holder 20 to collect and transmit light emitted from the led chip for the first time, the second lens module 40 is fixed on the lens holder 20 to collect and transmit light transmitted for the second time, and light emitted from the led chip has a better optical effect after being collected and transmitted for two times. And the lighting device of the application has the advantages of simple structure, convenience in assembly and low cost.

The application also provides a lighting device, and a schematic view of a top view structure of the boss and the buckling part in the lighting device of the embodiment is shown in fig. 7, which is different from the above embodiment, in this embodiment, only 1 boss 22 is arranged on one side of the lens support, and the buckling part is arranged on the boss 22 and used for abutting against the second lens module. Specifically, the fastening portion includes a first sidewall 231, a second sidewall 232, and a third sidewall 233, the first sidewall 231 is disposed opposite to the third sidewall 233, the second sidewall 232 connects the first sidewall 231 and the third sidewall 233, and outer edges of the first sidewall 231, the second sidewall 232, and the third sidewall 233 are flush with an outer edge of the boss 22. The first and

third sidewalls

231 and 233 are used to achieve lateral retention of the second lens module, and the second sidewall 232 is used to achieve lateral retention of the second lens module.

The boss 22 can be adhered to the base plate, in another embodiment, the boss 22 can also be fixed on the boss 22 by means of screws and screw holes, when the second lens module is adhered to the boss, an accommodating cavity 221 can be disposed on one side of the boss 22 away from the base plate, and the accommodating cavity 221 is used for accommodating the adhesive to fix the second lens module.

It should be noted that other structures of the lighting device in this embodiment are the same as those in the previous embodiment, and are not described herein again.

The utility model provides a with the LED chip setting on printed circuit board among the lighting device of this application embodiment, make the LED chip can normally give out light, one side that is equipped with the LED chip at printed circuit board is fixed with the lens support, set up first lens module in the through-hole of lens support, carry out the first time to the light that the LED chip sent and collect the transmission, be fixed in the second lens module on the lens support in order to carry out the second time to the light through the first time transmission and collect the transmission, the light that the LED chip sent has better optical effect after twice transmission. In addition, only one boss 22 is arranged on one side of the lens support of the embodiment, so that the illuminating device is simpler in structure, more convenient to assemble and lower in cost.

Referring to fig. 8, fig. 8 is a schematic top view of a boss and a fastening portion in another embodiment of the lighting device of the present application. Unlike the above embodiments, the lens holder of the present embodiment is provided with 2 spaced apart bosses 22 on one side. The boss 22 is provided with a fastening portion for abutting against the second lens module. Specifically, the fastening portion includes a first sidewall 231, a second sidewall 232, and a third sidewall 233, the first sidewall 231 is disposed opposite to the third sidewall 233, the second sidewall 232 connects the first sidewall 231 and the third sidewall 233, the second sidewall 232 is disposed on the two bosses 22, and outer edges of the first sidewall 231, the second sidewall 232, and the third sidewall 233 are flush with outer edges of the bosses 22.

In this embodiment, the fastening portion further includes a fourth sidewall 234, the fourth sidewall 234 is connected to the second sidewall 232 and is disposed at an interval with the first sidewall 231 and the third sidewall 233, optionally, 2 fourth sidewalls 234 are disposed and respectively located on the two bosses 22, and an outer edge of the fourth sidewall 234 is flush with an outer edge of the bosses 22. Wherein the length of the fourth sidewall 234 is less than the length of the first and

third sidewalls

231 and 233. In this embodiment, the fourth sidewall 234 is used for abutting against the second lens, so that a gap is left between the second lens and the second sidewall 232, so as to conveniently place the colloid into the accommodating cavity 221 from the gap to fix the second lens module.

It should be noted that other structures of the lighting device in this embodiment are the same as those in the above embodiments, and are not described herein again.

The utility model provides a with the LED chip setting on printed circuit board among the lighting device of this application embodiment, make the LED chip can normally give out light, one side that is equipped with the LED chip at printed circuit board is fixed with the lens support, set up first lens module in the through-hole of lens support, carry out the first time to the light that the LED chip sent and collect the transmission, be fixed in the second lens module on the lens support in order to carry out the second time to the light through the first time transmission and collect the transmission, the light that the LED chip sent has better optical effect after twice transmission. In addition, in this embodiment, 2 bosses 22 are disposed on one side of the lens holder, and the fourth sidewall 234 is disposed on the bosses 22, so that the second lens module is more conveniently fixed.

The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims

1. An illumination device, characterized in that the illumination device comprises:

the LED chip is arranged on the printed circuit board;

the lens support is fixed on one side of the printed circuit board, which is provided with the light-emitting diode chip, and is provided with a through hole which is arranged opposite to the light-emitting diode chip;

the first lens module comprises one or more first lens units arranged in the through hole and is used for collecting light rays emitted by the light emitting diode chip for the first time;

and the second lens module is fixed on one side, far away from the printed circuit board, of the lens support and is used for collecting the light rays collected for the first time for the second time.

2. The lighting device as claimed in claim 1, wherein the lens holder comprises a bottom plate, the through hole is disposed on the bottom plate, at least one boss is disposed on each of two opposite sides of the bottom plate, and the second lens module is fixed on the boss.

3. A lighting device as recited in claim 2, wherein said boss is provided with a fastening portion, said fastening portion comprises a first side wall, a second side wall and a third side wall, said first side wall is opposite to said third side wall, said second side wall connects said first side wall and said third side wall, and outer edges of said first side wall, said second side wall and said third side wall are flush with an outer edge of said boss.

4. The lighting device as claimed in claim 3, wherein a receiving cavity is disposed on a side of the boss away from the base plate, and the receiving cavity is used for receiving glue to fix the second lens module.

5. The lighting device of claim 4, wherein the at least one boss comprises two bosses spaced apart from each other, wherein the second sidewall is disposed on the two bosses, wherein the fastening portion further comprises a fourth sidewall connected to the second sidewall and spaced apart from the first sidewall and the third sidewall, wherein an outer edge of the fourth sidewall is flush with an outer edge of the bosses, and wherein a length of the fourth sidewall is less than a length of the first sidewall and the third sidewall.

6. A lighting device as recited in claim 3, wherein said second lens module is provided with overlapping portions on opposite sides thereof, said overlapping portions being secured to said bosses and abutting said overlapping portions to secure said second lens module.

7. The lighting device according to claim 1, wherein an area of a cross section of the through hole in a direction away from the printed circuit board is gradually increased.

8. A lighting device as recited in claim 7, wherein an edge of said through hole remote from said printed circuit board is provided with a chamfer.

9. The lighting device as claimed in claim 2, wherein a dispensing slot is further disposed on a side of the bottom plate away from the printed circuit board, and the dispensing slot is disposed adjacent to and in communication with the through hole.

10. A lighting device as recited in claim 1, wherein said second lens module comprises one or more second lens units, said one or more second lens units being integrally formed.