WO2024114791A1

WO2024114791A1 - Lens mounting structure, optical module, and lamp

Info

Publication number: WO2024114791A1
Application number: PCT/CN2023/135844
Authority: WO
Inventors: 李祥森; 何建智; 吴俊�; 王伟
Original assignee: 苏州欧普照明有限公司; 欧普照明股份有限公司
Priority date: 2022-12-01
Filing date: 2023-12-01
Publication date: 2024-06-06

Abstract

A lens mounting structure, an optical module, and a lamp. The lens mounting structure comprises a lens support (102) and an upper cover (101); the lens support (102) comprises an annular bearing portion (1021) and a first connecting portion (1022) provided on the peripheral edge of the bearing portion (1021); the upper cover (101) comprises an annular body (1011) having a taper; the outer tapered surface of the annular body (1011) is provided with a side wall (1012) extending towards the small end of the annular body (1011); a second connecting portion (1013) is provided on the outer side of the side wall (1012); the first connecting portion (1022) is in fit connection with the second connecting portion (1013); a lens (2) is clamped by the bearing portion (1021) and the side wall (1012); and the upper cover (101) further comprises a third connecting portion (1014) which is used for integrally mounting the lens (2) mounting structure on a mounting base.

Description

Lens mounting structure, optical module and lamp

This application claims the priority of the Chinese patent application with the application date of December 1, 2022, application number 202211525579.4, and invention name “Lens mounting structure, optical module and lamp”, as well as the priority of the Chinese patent application with the application date of December 1, 2022, application number 202223201083.X, and invention name “Lens mounting structure, optical module and lamp”, all of which are incorporated by reference in this application.

Technical Field

The present application relates to a lens mounting structure and an optical module and a lamp comprising the lens mounting structure.

Background technique

Lamps are common electrical appliances in daily life. With the increase of water charges, the requirements for lamps are also further improved. The first generation is light bulbs, which have been replaced by more energy-saving and environmentally friendly LED lamps. According to the characteristics of LED lamps, many types of lamp styles have been developed, and downlights are one of them. As a novel and fashionable lamp, it is deeply loved by home decoration users. Downlights usually use lenses to distribute light. At present, the lenses of common downlights on the market are locked in the aluminum extrusion shell and cannot be disassembled and assembled, which cannot meet the needs of users for different light distribution effects.

Summary of the invention

The purpose of the present application is to solve the above-mentioned problem and to propose a lens mounting structure, an optical module and a lamp that can be quickly disassembled and assembled and conveniently replace the lens.

In order to achieve the above-mentioned functions, the technical solution adopted by the present application is to provide a lens mounting structure, wherein the lens mounting structure includes a lens holder and an upper cover, the lens holder includes an annular bearing portion and a first connecting portion arranged on the outer peripheral edge of the bearing portion, the upper cover includes an annular body with a taper, a side wall extending toward the small end of the annular body is arranged on the outer conical surface of the annular body, a second connecting portion is arranged on the outer side of the side wall, the first connecting portion and the second connecting portion are cooperatively connected, the lens is clamped by the bearing portion and the side wall, and the upper cover also includes a third connecting portion for mounting the lens mounting structure as a whole on a mounting base.

Preferably, the width of the opposite sides of the side wall is greater than the width of the small end of the annular body, and smaller than the width of the large end of the annular body.

Preferably, the third connection portion is arranged on the outer peripheral side of the annular body or the bearing portion.

Preferably, the third connecting portion is a snap-fit structure.

Preferably, one of the first connecting portion and the second connecting portion is a claw, and the other is a holding portion.

Preferably, the number of the second connection parts and the third connection parts is three or more, and they are evenly arranged along the circumference of the side wall.

Preferably, the second connection parts and the third connection parts are arranged alternately.

Preferably, the lens positioning portion is also included, and the lens positioning portion is arranged on the bearing portion or the side wall, and the lens positioning portion is a sunken platform structure.

The present application also provides an optical module, comprising a lens, wherein the optical module further comprises the lens arrangement as described above. The mounting structure is as follows: the light incident surface of the lens is arranged on a side close to the lens holder, and the light emitting surface is arranged on a side close to the upper cover; the first connecting portion and the second connecting portion cooperate to fix the lens holder and the upper cover together; the lens is clamped by the bearing portion and the side wall; and the side wall forms a light mixing cavity below the annular body.

Preferably, the optical module further comprises an optical layer, and the optical layer is a diffusion layer and/or a color optical layer arranged between the bearing portion and the light incident surface of the lens.

The present application also provides a lamp, comprising a light source and a shell, wherein the light source is arranged in the shell, wherein the lamp also includes the optical module as described above, and the shell includes a fourth connecting portion, and the fourth connecting portion is cooperatively connected with the third connecting portion.

Preferably, the housing comprises a light outlet, the optical module is arranged at the light outlet, and can be detachably connected to the housing via the light outlet.

The lens mounting structure of the present application is improved, and the lens is installed in an independent mounting structure. The lens and the mounting structure form an integrated optical module, which is easy to disassemble and replace from the lamp. At the same time, the lens mounting structure proposed in the present application is also easy to disassemble and replace, and the lens and other optical components placed therein can be easily replaced, bringing users a richer use experience.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the structure of a lamp according to a preferred embodiment of the present application;

FIG2 is a cross-sectional view of the lamp of the preferred embodiment of FIG1 ;

FIG3 is a partial enlarged view of area A in FIG2 ;

FIG4 is a schematic structural diagram of a lens bracket according to a preferred embodiment of the present application;

FIG. 5 is a schematic structural diagram of the lens bracket and the upper cover after being assembled in the preferred embodiment of the present application.

Detailed ways

The lens mounting structure, optical module and lamp proposed in the present application are further described in detail below in conjunction with the accompanying drawings and specific embodiments.

The lens mounting structure of the preferred embodiment of the present application is applied to the lamps shown in Figures 1 and 2. The lens mounting structure includes a lens bracket 102 for carrying the lens 2 and an upper cover 101.

As shown in FIG4 , the lens holder 102 includes a bearing portion 1021. The bearing portion 1021 is a flat plate with a through hole in the middle for light to pass through. The overall shape is annular, and the lens 2 can be placed thereon. The light incident surface of the lens 2 is arranged on the side facing the bearing portion 1021. Referring to FIG3 , the upper cover 101 includes an annular body 1011 with a taper, and a side wall 1012 extending toward the small end of the annular body 1011 is arranged on the outer conical surface of the annular body 1011. The lens 2 is clamped by the bearing portion 1021 of the lens holder 102 and the side wall 1012 of the upper cover 101. In order to realize the connection between the lens holder 102 and the upper cover 101, the lens holder 102 includes a first connecting portion 1022 arranged on the outer periphery of the bearing portion 1021, and the upper cover 101 includes a second connecting portion 1013 arranged on the outer side of the side wall 1012, and the first connecting portion 1022 and the second connecting portion 1013 are matched and connected.

In this embodiment, the first connection portion 1022 and the second connection portion 1013 are connected by snapping, the first connection portion 1022 is a claw extending from the bearing portion 1021 toward the upper cover 101, and the second connection portion 1013 is a holding portion, specifically, disposed on the upper cover 101 side wall 1012 outside the projection. The claw as the first connection part 1022 and the projection as the second connection part 1013 are multiple, three or more. The two are arranged in a one-to-one correspondence and are evenly arranged on the outer peripheral side of the lens holder 102 and the upper cover 101. In order to prevent the claw as the first connection part 1022 and the projection as the second connection part 1013 from being disconnected, in this embodiment, a circle of annular wall 1024 is extended from the outer periphery of the bearing part 1021 toward the upper cover 101, and a retaining edge 1023 is provided on the inner wall of the annular wall 1024 on both sides of the first connection part 1022. When the first connection part 1022 and the second connection part 1013 are snap-connected, the retaining edge abuts on both sides of the projection as the second connection part 1013 to limit the circumferential rotation of the upper cover 101 relative to the lens holder 102.

In other embodiments, the second connection part 1013 may also be a slot provided on the side wall 1012 of the upper cover 101, so that even if a circumferential limiting structure is not provided, the first connection part 1022 and the second connection part 1013 may be kept from being separated. In other preferred embodiments, the second connection part 1013 may also be provided in the form of a claw, and the outer peripheral edge of the side of the bearing part 1021 away from the lens 2 is used as the first connection part 1022 to achieve a snap connection. In addition, the lens holder 102 and the upper cover 101 may also be connected in a manner other than snap connection. When the two are threadedly connected, the first connection part 1022 and the second connection part 1013 may be threaded sections provided on the lens holder 102 and the upper cover 101, respectively. When a connection member such as a screw is used for connection, the first connection part 1022 and the second connection part 1013 may be a through hole. When an adhesive method is used, the first connection part 1022 and the second connection part 1013 may be an adhesive surface. This application does not limit this.

Generally speaking, the size of the lens 2 will be smaller than the large end of the tapered annular body 1011 of the upper cover 101. Therefore, in the present embodiment, the width of the opposite side of the side wall 1012 is greater than the width of the small end of the annular body 1011, and less than the width of the large end of the annular body 1011. That is, the side wall 1012 extends from the middle section of the outer conical surface of the annular body 1011 toward the lens holder 102. The width of the side wall 1012 is smaller than the large end of the annular body 1011, and can match the periphery of the lens 2 to completely press the lens. At this time, the side wall 1012 will form a light mixing cavity below the annular body 1011, and the small end of the annular body 1011 is the light outlet of the light mixing cavity. The width of the side wall 1012 is greater than the small end of the annular body 1011, which can effectively avoid glare. At the same time, the frustum shape of the annular body 1011 forms a reflector, which can perform secondary light distribution on the light entering from the small end of the annular body 1011.

In order to facilitate clamping, the lens 2 is provided with a convex edge 201 on the outer peripheral side of its mounting surface. The bearing portion 1021 of the lens holder 102 and the side wall 1012 of the upper cover 101 respectively abut against the opposite sides of the convex edge 201. In order to limit the lateral displacement of the lens, a lens positioning portion 1015 can be provided on the bearing portion 1021 or the side wall 1012. In this embodiment, the lens positioning portion 1015 is a sinking platform provided on the inner side of the port of the side wall 1012 of the upper cover 101, and its step surface abuts against the upper surface of the convex edge 201. In other preferred embodiments, a sinking platform can also be provided on the bearing portion 1021, and its shape matches the outer peripheral surface of the convex edge 201, and the convex edge 201 is provided therein. Of course, in other preferred embodiments, a positioning protrusion can also be provided on the side wall 1012, and a concave structure matching it can be provided on the lens 2, or the lens can be fixed by screws or adhesive, which is not limited in this application.

The lens 2 is placed between the lens holder 102 and the upper cover 101, and the two are connected by a first connection part 1022 and a second connection part 1013 to form an optical module 1, and its external structure is shown in FIG5. The optical module 1 can be set in the lamp as shown in FIG1, and the optical module 1 is connected to the housing 6 of the lamp as a whole during the disassembly and assembly process of the lamp. Therefore, the lens mounting structure also includes a third connection part 1014, and the optical module 1 is installed on the housing 6 as the installation base through the third connection part 1014. In this embodiment, the third connection part 1014 is arranged on the outer peripheral side of the annular body 1011 of the upper cover 101, and the third connection part 1014 is arranged on the outer peripheral side of the annular body 1011 of the upper cover 101. In other embodiments, the third connection portion 1014 may also be arranged on the lens bracket 102. In this embodiment, the third connection portion 1014 is a claw structure, and the housing 6 of the lamp is provided with a corresponding fourth connection portion 601, and the fourth connection portion 601 is a slot, and the two are connected by snapping. The third connection portion 1014 includes more than three claws, which are evenly arranged in the circumference of the side wall 1012. In order to avoid interference with the second connection portion 1013, the second connection portion 1013 and the third connection portion 1014 are staggered.

As shown in Figures 1, 2, 3 and 5, the optical module 1 includes a lens holder 102, an upper cover 101 and a lens 2 sandwiched between the lens holder 102 and the upper cover 101. The light incident surface of the lens 2 is arranged on a side close to the lens holder 102, the light emitting surface is arranged on a side close to the upper cover 101, and the side wall 1012 forms a light mixing cavity below the annular body 1011. The lens holder 102 and the upper cover 101 are connected and fixed as a whole by a first connecting portion 1021 and a second connecting portion 1013. When the lens in the optical module 1 needs to be replaced, the lens mounting structure provided in the present application can be conveniently opened, and the lens 2 can be taken out for replacement, thereby making the application range of the optical module 1 wider.

In addition to the lens, in this embodiment, a diffusion layer 3 and a color optical layer 4 are sequentially arranged between the bearing portion 1021 and the light incident surface of the lens 2. In other embodiments, only one of the two may be provided. The diffusion layer 3 can make the light softer, and the blur degree of the light spot can be adjusted by replacing the diffusion layer 3. The color optical layer 4 can produce a variety of effects such as sunset afterglow and candlelight. By replacing the color optical layer, a variety of colors such as a myriad of colors can be produced, allowing users to have a variety of experiences. The optical module 1 provided in this application can easily add or replace the diffusion layer 3 and the color optical layer 4.

The lamp in the embodiment of FIG1 is a downlight, including a housing 6, and a light source 5 is arranged in the housing 6. The light source 5 includes a substrate 501 and an LED lamp bead 502 arranged on the substrate 501. The housing 6 is cylindrical, and the side port facing the LED lamp bead 502 is the light outlet of the lamp. A fourth connecting portion 601 is arranged on the inner side wall of the housing 6. After the optical module 1 is assembled, it enters the interior of the housing 6 through the light inlet, and is connected and fixed by the third connecting portion 1014 and the fourth connecting portion 601. The third connecting portion 1014 and the fourth connecting portion 601 are detachable connection structures, which are snap-on connection structures in this embodiment, and can be threaded connection structures in other preferred embodiments, or can be connected by screws, magnets, or adhesives, which is not limited in this application. The optical module 1 is installed through the light outlet of the lamp, so that the optical module 1 can be replaced without disassembly after the lamp is installed on the roof, wall, etc.

The above description of the preferred embodiments of the present application is for illustration and description, and is not intended to be exhaustive or limited to the specific form disclosed. Obviously, many modifications and changes may be made, which may be obvious to those skilled in the art and should be included in the scope of the present application defined by the attached claims.

Claims

A lens mounting structure, wherein the lens mounting structure includes a lens holder and an upper cover, the lens holder includes an annular bearing portion and a first connecting portion arranged on the outer peripheral edge of the bearing portion, the upper cover includes an annular body with a taper, a side wall extending toward the small end of the annular body is arranged on the outer conical surface of the annular body, a second connecting portion is arranged on the outer side of the side wall, the first connecting portion and the second connecting portion are cooperatively connected, the lens is clamped by the bearing portion and the side wall, and the upper cover also includes a third connecting portion for mounting the lens mounting structure as a whole on a mounting base.
The lens mounting structure according to claim 1, wherein the width of the opposite sides of the side wall is greater than the width of the small end of the annular body and less than the width of the large end of the annular body.
The lens mounting structure according to claim 2, wherein the third connecting portion is arranged on an outer peripheral side of the annular body or the bearing portion.
The lens mounting structure according to claim 3, wherein the third connecting portion is a snap-fit structure.
The lens mounting structure according to claim 4, wherein one of the first connecting portion and the second connecting portion is a claw and the other is a holding portion.
The lens mounting structure according to claim 5, wherein the number of the second connecting parts and the third connecting parts is three or more, and they are evenly arranged along the circumference of the side wall.
The lens mounting structure according to claim 6, wherein the second connecting portion and the third connecting portion are arranged alternately.
According to any one of claims 1-7, the lens mounting structure further comprises a lens positioning portion, the lens positioning portion is arranged on the bearing portion or the side wall, and the lens positioning portion is a sunken platform structure.
An optical module comprises a lens, wherein the optical module further comprises a lens mounting structure as described in any one of claims 1 to 8, the light incident surface of the lens is arranged on a side close to the lens holder, the light emitting surface is arranged on a side close to the upper cover, the first connecting portion and the second connecting portion cooperate to fix the lens holder and the upper cover together, the lens is clamped by the bearing portion and the side wall, and the side wall forms a light mixing cavity below the annular body.
The optical module according to claim 9, wherein the optical module further comprises an optical layer, and the optical layer is a diffusion layer and/or a color optical layer arranged between the bearing portion and the light incident surface of the lens.
A lamp comprises a light source and a shell, wherein the light source is arranged in the shell, wherein the lamp also comprises the optical module as claimed in claim 9 or 10, and the shell comprises a fourth connecting portion, and the fourth connecting portion is cooperatively connected with the third connecting portion.
The lamp according to claim 11, wherein the shell comprises a light outlet, the optical module is arranged at the light outlet, and can be detachably connected to the shell via the light outlet.