CN218583055U

CN218583055U - Reflective lens and LED lamp bank

Info

Publication number: CN218583055U
Application number: CN202221885426.6U
Authority: CN
Inventors: 罗保平; 刘碧
Original assignee: Nanchang Yimei Optoelectronics Technology Co ltd
Current assignee: Nanchang Yimei Optoelectronics Technology Co ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2023-03-07
Anticipated expiration: 2032-07-21

Abstract

The utility model discloses a reflective lens and LED banks, this reflective lens include: a lens body; the first positioning pieces extend from the end face of the lens body towards one side far away from the lens body; the first positioning pieces and the second positioning pieces are alternately distributed on the end face of the lens body; wherein, the extension length of first setting element is greater than the extension length of second setting element, is equipped with the location step in order to be formed with in the one end of keeping away from the lens body and is used for carrying out the complex locating surface with the PCB base plate along the periphery of first setting element, and the terminal surface and the locating surface of second setting element keep flushing. The utility model provides an among the prior art sticky mode have the problem that the anti push-and-pull ability of optical lens is not enough to avoid LED banks in transportation and use optical lens to drop.

Description

Reflective lens and LED lamp bank

Technical Field

The utility model relates to a lighting apparatus technical field, concretely relates to reflective lens and LED banks.

Background

In the field of optical lenses, a PMMA reflective optical lens, i.e. a reflective optical lens made of plastic material, has at least three connecting pins extending from a side thereof facing a PCB substrate for connecting with the PCB substrate through the connecting pins.

However, the connecting pin and the PCB substrate are usually connected by gluing, that is, glue is coated on the surface of the connecting pin or the PCB substrate, and the connecting piece is attached to the surface of the PCB substrate and can be fixed after the glue is cured.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a be not enough to prior art, the purpose of the utility model is providing a reflective lens and LED banks aims at solving the sticky mode and has the problem that the anti push-pull ability of optical lens is not enough among the prior art to avoid LED banks optical lens to drop in transportation and use.

An aspect of the utility model is to provide a reflective lens for install on the PCB base plate in order to locate LED lamp pearl on the PCB base plate covers, reflective lens includes:

the lens body is used for refracting or reflecting light rays emitted by the LED lamp beads;

the lens comprises a lens body, at least two first positioning pieces and at least two second positioning pieces, wherein the lens body is provided with a lens cavity;

the first positioning pieces and the second positioning pieces are alternately distributed on the end face of the lens body;

the extension length of the first positioning piece is greater than that of the second positioning piece, a positioning step is arranged on the periphery of the first positioning piece to keep away from one end of the lens body, a positioning surface used for being matched with the PCB substrate is formed at one end of the lens body, and the end face of the second positioning piece is flush with the positioning surface.

According to one aspect of the above technical solution, the number of the first positioning parts and the number of the second positioning parts are two, and the two first positioning parts and the two second positioning parts are alternately distributed on the end face of the lens body and are arranged at intervals.

According to an aspect of the above technical solution, the two first positioning members are symmetrically disposed with the central point of the lens body as an axis, and the two second positioning members are symmetrically disposed with the central point of the lens body as an axis.

According to one aspect of the above technical solution, the two first positioning parts and the two second positioning parts are respectively disposed at four corner positions of the end surface of the lens body.

According to one aspect of the above technical scheme, the first positioning piece and the second positioning piece are both cylindrical structures, and the diameters of the first positioning piece and the second positioning piece are equal.

According to one aspect of the above technical solution, an end of the first positioning member away from the lens body is at least partially provided with an assembly chamfer.

According to one aspect of the above technical scheme, the outer circumferential surface of the first positioning piece is provided with a glue dispensing groove for storing the bonding liquid.

According to one aspect of the above technical scheme, the dispensing slot is of an annular structure, or the dispensing slot is of a sectional structure, and the dispensing slot comprises a plurality of dispensing sub-slots.

An aspect of the utility model is to provide a LED banks, LED banks includes the PCB base plate and locates LED lamp pearl on the PCB base plate, the PCB base plate is in the periphery of LED lamp pearl be equipped with be used for with first locating part carries out the complex locating hole.

According to an aspect of the above technical scheme, the LED lamp bank is a direct type lamp bank.

Compared with the prior art, adopt the utility model discloses a reflective lens and LED banks, beneficial effect lies in:

the first positioning piece, the positioning steps and the second positioning piece are arranged on the end face of the reflective lens at intervals and are alternately distributed, so that the reflective lens can be fixedly connected with the PCB substrate through the first positioning piece, the positioning steps and the second positioning piece, the reflective lens can not deflect and dislocate on the PCB substrate through the first positioning piece, and the connection stability of the reflective lens and the PCB substrate is finally improved; therefore, when the LED lamp assembly equipped with the reflective lens shown in this embodiment is subjected to vibration caused by transportation, for example, the reflective lens is not easily detached from the PCB substrate.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a reflective lens according to an embodiment of the present invention at a first viewing angle;

fig. 2 is a schematic structural diagram of a reflective lens at a second viewing angle according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a reflective lens at a third viewing angle according to an embodiment of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 3;

fig. 5 is a schematic view illustrating an assembly of a reflective lens mounted on a PCB substrate according to an embodiment of the present invention;

description of reference numerals:

the lens comprises a lens body 10, a first positioning piece 11, an assembly chamfer 110, a dispensing groove 111, a second positioning piece 12, a positioning step 13, a PCB substrate 20, a positioning hole 21 and adhesive liquid 210.

Detailed Description

In order to make the objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. Several embodiments of the invention are presented in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "up," "down," and the like are for illustrative purposes only and do not indicate or imply that the referenced device or element must be in a particular orientation, constructed and operated, and should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example one

Please refer to fig. 1-5, which illustrate a reflective lens according to a first embodiment of the present invention for being mounted on a PCB substrate 20 to cover a LED lamp bead disposed on the PCB substrate 20, the reflective lens includes: the lens module comprises a lens body 10, at least two first positioning members 11 and at least two second positioning members 12, wherein the at least two first positioning members 11 are used for connecting the lens body 10 to a PCB (printed circuit board) 20.

Wherein, lens body 10 is used for right the light that LED lamp pearl sent refracts or reflects, and it is made by the PMMA material, for example ya keli, and it is the transparence setting, and has certain range to the light that can send LED lamp pearl reflects or refracts, thereby makes the light that passes through reflective lens can obtain comparatively good light shape.

In order to connect the lens body 10 to the PCB substrate 20, the first positioning element 11 extends from the end surface of the lens body 10 toward a side away from the lens body 10, and the extending length thereof is usually in mm, but is also determined based on the thickness of the PCB substrate 20, such as 1.0mm; a positioning step 13 is arranged on the periphery of the first positioning piece 11, and the positioning step 13 surrounds the periphery of the first positioning piece 11, so that a positioning surface for matching with the surface of the PCB substrate 20 can be formed at one end of the positioning step 13 far away from the lens body 10, and the positioning surface is a horizontal surface; in the present embodiment, there are two first positioning members 11, and the two first positioning members 11 are disposed at intervals on the end surface of the lens body 10; when the lens body 10 is assembled, the two first positioning members 11 can respectively extend into the positioning holes 21 preset in the PCB substrate 20, and the positioning surface of the positioning step 13 is attached to the periphery of the positioning hole 21, so that the mounting position of the lens body 10 can be positioned by the first positioning members 11 and the positioning step 13, and the reflective lens can be fastened on the PCB substrate 20 by the connection of the first positioning members 11 and the positioning holes 21.

In some possible embodiments, the first positioning element 11 is fixed by, for example, bonding, clipping, etc. after extending into the positioning hole 21; preferably, in the present embodiment, the connection between the first positioning member 11 and the positioning hole 21 is fixed by gluing. Furthermore, an assembling chamfer 110 is at least partially disposed on an end of the first positioning member 11 away from the lens body 10, such as a fillet, and when the first positioning member 11 extends into the positioning hole 21 preset on the PCB substrate 20, the assembling process is simpler and more convenient due to the existence of the assembling chamfer 110.

Similarly, the second positioning member 12 extends from the end surface of the lens body 10 to a side away from the lens body 10, and the extending length thereof is also determined by mm, which of course is determined based on the thickness of the PCB substrate 20, and it is also required to ensure that the extending length thereof is smaller than the extending length of the first positioning member 11, for example, 1mm; in addition, in this embodiment, the number of the second positioning parts 12 is two, two second positioning parts 12 are disposed at intervals on the end surface of the lens body 10, and the first positioning parts 11 and the second positioning parts 12 are alternately distributed on the end surface of the lens body 10.

Specifically, the two first positioning members 11 are symmetrically disposed with a central point of the lens body 10 as an axis, and the two second positioning members 12 are symmetrically disposed with the central point of the lens body 10 as an axis; the two first positioning members 11 and the two second positioning members 12 are respectively disposed at four corner positions of the end surface of the lens body 10; and the first positioning piece 11 and the second positioning piece 12 are both cylindrical structures, and the diameters of the first positioning piece 11 and the second positioning piece 12 are equal.

When the reflective lens is assembled on the PCB substrate 20, after the first positioning member 11, the positioning step 13 and the second positioning member 12 are coated with the adhesive 210, because the extension length of the first positioning member 11 is greater than the extension length of the second positioning member 12, the first positioning member 11 firstly extends into a preset positioning hole 21 on the PCB substrate 20, thereby realizing the pre-positioning of the reflective lens, when the assembly force is continuously applied to the reflective lens, the positioning step 13 and the second positioning member 12 simultaneously abut against the surface of the PCB substrate 20 during the extending process of the first positioning member 11, and after the adhesive 210 is dried, the reflective lens can be tightly connected with the PCB substrate 20; and because two first positioning pieces 11 are separately arranged and respectively extend into the positioning holes 21 preset on the PCB substrate 20, the reflective lens is not easy to deflect and dislocate on the PCB substrate 20 and is not easy to separate from the PCB substrate 20.

The outer peripheral surface of the first positioning member 11 is provided with a dispensing slot 111 for storing the adhesive 210, and when the surface of the first positioning member 11 is coated with the adhesive 210, the dispensing slot 111 can increase the adhesive area to a certain extent, so that the connection stability between the first positioning member 11 and the positioning hole 21 is improved. In the present embodiment, the dispensing slot 111 is an annular structure; in some other possible embodiments, the dispensing slot 111 is a segmented structure, and the dispensing slot 111 includes a plurality of dispensing sub-slots.

To sum up, the first positioning piece 11, the positioning step 13 and the second positioning piece 12 are arranged on the end surface of the reflective lens, and the first positioning piece 11, the positioning step 13 and the second positioning piece 12 are arranged at intervals and alternately distributed on the end surface of the reflective lens, so that the reflective lens can be firmly connected with the PCB substrate 20 through the first positioning piece 11, the positioning step 13 and the second positioning piece 12, and the reflective lens can not deflect and dislocate on the PCB substrate 20 through the first positioning piece 11, and finally the connection stability of the reflective lens and the PCB substrate 20 is improved; therefore, even when the LED lamp set equipped with the reflective lens shown in the present embodiment is subjected to vibration caused by transportation, for example, the reflective lens is not easily detached from the PCB substrate 20.

Example two

Please refer to fig. 4-5 again, a second embodiment of the present invention provides a LED lamp assembly, which includes a PCB substrate 20 and a LED lamp bead disposed on the PCB substrate 20, wherein the PCB substrate 20 is disposed on the periphery of the LED lamp bead and is provided with a positioning hole 21 for cooperating with the first positioning element 11. Specifically, the LED lamp group is a direct type lamp group.

By adopting the LED lamp set shown in this embodiment, the first positioning element 11, the positioning step 13 and the second positioning element 12 are arranged on the end surface of the reflective lens, and the first positioning element 11, the positioning step 13 and the second positioning element 12 are arranged at intervals and alternately distributed on the end surface of the reflective lens, so that the reflective lens can be fastened and connected with the PCB substrate 20 through the first positioning element 11, the positioning step 13 and the second positioning element 12, and the reflective lens can be ensured not to deflect and dislocate on the PCB substrate 20 through the first positioning element 11, and finally the connection stability of the reflective lens and the PCB substrate 20 is improved; therefore, when the LED lamp assembly shown in the present embodiment is subjected to vibration caused by transportation, for example, the reflective lens is not easily detached from the PCB substrate 20.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a reflective lens for install on the PCB base plate in order will locate LED lamp pearl cover on the PCB base plate, its characterized in that, reflective lens includes:

the lens comprises a lens body, at least two first positioning pieces and at least two second positioning pieces, wherein the lens body is provided with a plurality of first positioning holes;

wherein, the extension length of first setting element is greater than the extension length of second setting element, follows the periphery of first setting element is equipped with the location step in order to keep away from the one end of lens body be formed with be used for with the PCB base plate carries out the complex locating surface, just the terminal surface of second setting element with the locating surface keeps flushing.

2. The reflective lens of claim 1, wherein the number of the first positioning elements and the number of the second positioning elements are two, and the two first positioning elements and the two second positioning elements are alternately distributed on the end surface of the lens body and are spaced apart from each other.

3. The reflective lens of claim 2, wherein the two first positioning members are symmetrically disposed about the center point of the lens body, and the two second positioning members are symmetrically disposed about the center point of the lens body.

4. The reflective lens as claimed in claim 3, wherein the two first positioning members and the two second positioning members are respectively disposed at four corners of the end surface of the lens body.

5. The reflective lens of claim 1, wherein the first positioning element and the second positioning element are both cylindrical structures, and the diameters of the first positioning element and the second positioning element are equal.

6. A reflective lens according to claim 5, wherein an end of the first retainer remote from the lens body is at least partially provided with a fitting chamfer.

7. The reflex lens as claimed in any one of claims 1 to 6, wherein the first positioning member has an outer peripheral surface provided with a dispensing groove for storing the adhesive liquid.

8. The reflective lens of claim 7, wherein the dispensing slot is annular in configuration or segmented in configuration, and comprises a plurality of dispensing sub-slots.

9. An LED lamp set, characterized in that, the LED lamp set includes a PCB substrate, LED lamp beads arranged on the PCB substrate and the reflective lens of any one of claims 1 to 8, the PCB substrate is provided with positioning holes at the periphery of the LED lamp beads for matching with the first positioning member.

10. The LED light bank of claim 9, wherein the LED light bank is a direct-lit light bank.