CN220417159U

CN220417159U - LED light source and LED lamp

Info

Publication number: CN220417159U
Application number: CN202223292995.2U
Authority: CN
Inventors: 罗雪方
Original assignee: Jiangsu Luohua New Material Co ltd
Current assignee: Jiangsu Luohua New Material Co ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2024-01-30
Anticipated expiration: 2032-12-09

Abstract

The application discloses LED light source and LED lamps and lanterns, this LED light source includes: a circuit board including a first surface; the LED chips are fixedly arranged on the first surface and are electrically connected with the circuits on the circuit board one by one; the quantum dot light-emitting layers cover the LED chips, and the first side wall and the second side wall of the quantum dot light-emitting layers vertically extend to the first surface; wherein the quantum dot luminescent layer comprises a diffusion material and a quantum dot fluorescent material; and the transparent adhesive layers are positioned on two sides of the first surface and are attached to the first side wall and the second side wall. Through the design mode, the diffusion material and the quantum dot fluorescent material are mixed to form the light-emitting layer, and the light-emitting layer is combined with the LED chip to emit light, so that the diffusion plate does not need to be additionally placed, the light loss can be reduced, the light-emitting efficiency and the light-emitting uniformity can be improved, and the thickness and the size of the whole LED light source can be greatly reduced.

Description

LED light source and LED lamp

Technical Field

The application belongs to the technical field of lamps and lanterns, and in particular relates to an LED light source and an LED lamp.

Background

The LED chip has the advantages of high luminous efficiency, small volume, quick response time, long service life and the like, and is widely applied to the fields of lighting lamps and the like. At present, an LED light source is generally used to emit light, but a conventional classroom lamp structure sequentially comprises a housing, a lamp panel, a light source, a diffusion plate and a grid plate from top to bottom, wherein a certain distance is reserved between the diffusion plate and the light source in the structure, so that light emitted by the LED light source can pass through the diffusion plate through a certain distance, light loss is necessarily caused between the diffusion plate and the diffusion plate, the light emitting efficiency is small, and the overall thickness and the size of the lamp are large due to the structure. Therefore, a new LED light source and LED lamp are needed to solve the above problems.

Disclosure of Invention

The technical problem that this application mainly solves is to provide a LED light source and LED lamps and lanterns, not only can improve light-emitting efficiency and light-emitting homogeneity, can reduce thickness and the size of whole LED light source moreover.

In order to solve the technical problems, one technical scheme adopted by the application is as follows: there is provided an LED light source comprising: a circuit board including a first surface; the LED chips are fixedly arranged on the first surface and are electrically connected with the circuits on the circuit board one by one; the quantum dot light-emitting layers cover the LED chips, and the first side wall and the second side wall of the quantum dot light-emitting layers vertically extend to the first surface; wherein the quantum dot luminescent layer comprises a diffusion material and a quantum dot fluorescent material; and the transparent adhesive layers are positioned on two sides of the first surface and are attached to the first side wall and the second side wall.

As a preferable technical scheme, the top surface of the quantum dot light-emitting layer is parallel to the first surface, and the distance between the top surface of the quantum dot light-emitting layer and the top surface of the LED chip is greater than 0.

As a preferable technical scheme, for the top surface of the quantum dot light-emitting layer, the position corresponding to each LED chip is set to be arc-shaped, the position corresponding to each two LED chips is parallel to the first surface, and the distance between the top surface of the quantum dot light-emitting layer and the top surface of the LED chip is greater than 0.

As a preferable technical scheme, the height of the transparent adhesive layer is larger than or equal to the thickness of the quantum dot luminescent layer.

In order to solve the technical problems, another technical scheme adopted by the application is as follows: provided is an LED lamp, including: a lamp housing; the LED light source according to any one of the embodiments, wherein one side of the circuit board, far away from the LED chip, of the LED light source is fixedly connected to the lamp housing; the grid plate and the fixed frame, the grid plate is fixedly connected to the lower end of the lamp housing through the fixed frame.

As a preferable technical scheme, the grid plate comprises a plurality of hollowed grids, each grid corresponds to one LED chip, so that light emitted by the LED light source is exposed through the grids.

As a preferred technical solution, the inner side wall of each of the grids is coated with an anti-glare material.

The beneficial effects of this application are: the LED light source provided in the present application includes: a circuit board including a first surface; the LED chips are fixedly arranged on the first surface and are electrically connected with the circuits on the circuit board one by one; the quantum dot light-emitting layers cover the LED chips, and the first side wall and the second side wall of the quantum dot light-emitting layers vertically extend to the first surface; wherein the quantum dot luminescent layer comprises a diffusion material and a quantum dot fluorescent material; and the transparent adhesive layers are positioned on two sides of the first surface and are attached to the first side wall and the second side wall. Through the design mode, the diffusion material and the quantum dot fluorescent material are mixed to form the light-emitting layer, and the light-emitting layer is combined with the LED chip to emit light, so that the diffusion plate does not need to be additionally placed, the light loss can be reduced, the light-emitting efficiency and the light-emitting uniformity can be improved, and the thickness and the size of the whole LED light source can be greatly reduced.

Drawings

For a clearer description of the technical solutions in the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:

FIG. 1 is a cross-sectional view of one embodiment of an LED light source of the present application;

FIG. 2 is a cross-sectional view of another embodiment of an LED light source of the present application;

fig. 3 is a block diagram of an embodiment of an LED lamp in the present application.

Detailed Description

The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

Referring to fig. 1, fig. 1 is a cross-sectional view of an embodiment of an LED light source of the present application. Specifically, the LED light source 1 includes a wiring board 10, an LED chip 12, a quantum dot light emitting layer 14, and a transparent adhesive layer 16. In this embodiment, the circuit board 10 includes a first surface 100, a plurality of LED chips 12 are arranged on the first surface 100 at intervals, and the LED chips 12 are fixedly disposed on the first surface 100 and electrically connected to the wires on the circuit board 10 one by one, so as to realize that each light-emitting lamp bead emits light individually. The quantum dot light emitting layer 14 covers the plurality of LED chips 12, and the first and second sidewalls 140 and 142 of the quantum dot light emitting layer 14 extend perpendicularly onto the first surface 100. Specifically, in the present embodiment, the quantum dot light emitting layer 14 includes a diffusion material and a quantum dot fluorescent material therein. Preferably, the quantum dot fluorescent material is a mixed material of at least one quantum dot material and a fluorescent material. As the quantum dot material is used as a novel semiconductor nanomaterial, the composition components of the quantum dot material are generally IIIB-VB or IIB-VIB elements, so that the quantum dot material has the excellent characteristics of high luminous efficiency, narrow half-wave width and the like, and can realize the effect of no need of light mixing when being used on an LED light source. In addition, in the embodiment, the diffusion material is diffusion powder, and the diffusion powder plays a role in diffusing emitted light, so that the light-emitting efficiency of the lamp manufactured by the LED light source is higher. The transparent adhesive layer 16 is disposed on two sides of the first surface 100, and the transparent adhesive layer 16 is attached to the first sidewall 140 and the second sidewall 142, so that two sides of the quantum dot light emitting layer 14 can be fixed, so as to facilitate preparation of the quantum dot light emitting layer 14. In this embodiment, the transparent adhesive layer 16 may be silica gel or epoxy transparent adhesive, so that a part of light of the LED chip can be emitted from the transparent adhesive layer 16, and the light emitting efficiency of the LED chip after being packaged is increased. Specifically, in the present embodiment, the height of the transparent adhesive layer 16 is greater than or equal to the thickness of the quantum dot light emitting layer 14. Specifically, in the present embodiment, the thickness of the quantum dot light emitting layer 14 is 0.3mm to 0.5mm, specifically, the thickness thereof may be 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, or the like, which is not limited herein. Therefore, heat generated during the working of the LED chip can be rapidly dissipated, damage of the heat to the internal structure of the quantum dot film is reduced, and the luminous efficiency of the quantum dot luminous layer is ensured, so that the reliability of the LED light source is improved.

As a first embodiment, referring to fig. 1, the top surface 144 of the quantum dot light emitting layer 14 is disposed parallel to the first surface 100, and the distance between the top surface 144 of the quantum dot light emitting layer 14 and the top surface 120 of the LED chip 12 is greater than 0. By the structure, the quantum dot light-emitting layer and the LED chip are combined to emit light, a diffusion plate is not required to be additionally placed, namely, light emitted by the LED light source can be dispersed through diffusion powder in the quantum dot light-emitting layer 14 without passing a certain distance, so that light loss can be reduced, light emitting efficiency and light emitting uniformity can be improved, and the overall thickness and size of the LED light source can be greatly reduced.

As a second example, referring to fig. 2, fig. 2 is a cross-sectional view of another embodiment of the LED light source of the present application. The structure is different from that in the first embodiment in that the quantum dot light emitting layer 14a in the LED light source 1a, specifically, as shown in fig. 2, for the top surface 144a of the quantum dot light emitting layer 14a, the position corresponding to each LED chip 12a is set to be arc-shaped, the position corresponding to each two LED chips 12a is disposed parallel to the first surface 100a, and the distance between the top surface 144a of the quantum dot light emitting layer 14a and the top surface 120a of the LED chip 12a is greater than 0, so as to ensure that the LED chip 12a is completely enclosed in the quantum dot light emitting layer 14 a. Specifically, the arc design can increase refraction and reflection of light to improve light extraction efficiency and light extraction uniformity. Other parts of the LED light source in the second embodiment are the same as those in the first embodiment except for the above quantum dot light emitting layer, and the description thereof is omitted herein. As in the first embodiment, the structure enables the quantum dot light-emitting layer to emit light in combination with the LED chip, and no additional diffusion plate is required to be placed, so that not only can the light mixing distance be reduced, but also the thickness and size of the whole LED light source can be greatly reduced.

Referring to fig. 1-3, fig. 3 is a block diagram of an embodiment of an LED lamp in the present application. As shown in fig. 3, the LED lamp 2 includes a lamp housing 20, a plurality of LED light sources 22 as shown in fig. 1 or fig. 2, a grid plate 24, and a fixing frame 26. Specifically, in the present embodiment, a side of the circuit board of the LED light source 22 far from the LED chip in fig. 3 is fixedly connected to the lamp housing 20, and the grid plate 24 is fixedly connected to the lower end of the lamp housing 20 through the fixing frame 26.

Preferably, in the present embodiment, referring to fig. 3, the grid plate 24 includes a plurality of hollowed-out grids 240, and each grid 240 corresponds to one LED chip, so that the light emitted by the LED light source is exposed through the grid 240.

Preferably, in this embodiment, with continued reference to fig. 3, the inner side wall (not shown) of each grid 240 is coated with an anti-glare material, and the light is diffused and emitted by the diffusion material, so as to achieve a certain effect of uniform light, and the emitted light is further uniformly emitted by the grid plate coated with the anti-glare material, and is partially refracted and diffused, and is partially reflected and diffused, so that a better anti-glare effect is obtained.

In summary, unlike the prior art, the LED light source provided in the present application includes: a circuit board including a first surface; the LED chips are fixedly arranged on the first surface and are electrically connected with the circuits on the circuit board one by one; the quantum dot light-emitting layers cover the LED chips, and the first side wall and the second side wall of the quantum dot light-emitting layers vertically extend to the first surface; wherein the quantum dot luminescent layer comprises a diffusion material and a quantum dot fluorescent material; and the transparent adhesive layers are positioned on two sides of the first surface and are attached to the first side wall and the second side wall. Through the design mode, the diffusion material and the quantum dot fluorescent material are mixed to form the light-emitting layer, and the light-emitting layer is combined with the LED chip to emit light, so that the diffusion plate does not need to be additionally placed, the light loss can be reduced, the light-emitting efficiency and the light-emitting uniformity can be improved, and the thickness and the size of the whole LED light source can be greatly reduced.

The foregoing description is only exemplary embodiments of the present application and is not intended to limit the scope of the present application, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present application, or direct or indirect application in other related technical fields are included in the scope of the present application.

Claims

1. An LED light source, comprising:

a circuit board including a first surface;

the LED chips are fixedly arranged on the first surface and are electrically connected with the circuits on the circuit board one by one;

the quantum dot light-emitting layers cover the LED chips, and the first side wall and the second side wall of the quantum dot light-emitting layers vertically extend to the first surface; wherein the quantum dot luminescent layer comprises a diffusion material and a quantum dot fluorescent material;

and the transparent adhesive layers are positioned on two sides of the first surface and are attached to the first side wall and the second side wall.

2. The LED light source of claim 1, wherein,

the top surface of the quantum dot light-emitting layer is parallel to the first surface, and the distance between the top surface of the quantum dot light-emitting layer and the top surface of the LED chip is greater than 0.

3. The LED light source of claim 1, wherein,

for the top surface of the quantum dot light-emitting layer, the corresponding position of each LED chip is arc-shaped, the corresponding position of each two LED chips is parallel to the first surface, and the distance between the top surface of the quantum dot light-emitting layer and the top surface of the LED chip is greater than 0.

4. An LED light source as claimed in any one of claims 2 or 3, characterized in that,

the height of the transparent adhesive layer is larger than or equal to the thickness of the quantum dot luminescent layer.

5. An LED light fixture, comprising:

a lamp housing;

a plurality of LED light sources according to any one of claims 1 to 4, wherein one side of the circuit board of the LED light source, which is far away from the LED chip, is fixedly connected to the lamp housing;

the grid plate and the fixed frame, the grid plate is fixedly connected to the lower end of the lamp housing through the fixed frame.

6. The LED light fixture of claim 5 wherein the LED light fixture comprises a light source,

the grid plate comprises a plurality of hollowed grids, each grid corresponds to one LED chip, and light emitted by the LED light source is exposed through the grids.

7. The LED light fixture of claim 6 wherein the LED light fixture comprises a light source,

the inner side wall of each of the grids is coated with an anti-glare material.