WO2017054234A1

WO2017054234A1 - Led light tube

Info

Publication number: WO2017054234A1
Application number: PCT/CN2015/091403
Authority: WO
Inventors: 魏晓敏
Original assignee: 魏晓敏
Priority date: 2015-10-02
Filing date: 2015-10-02
Publication date: 2017-04-06
Also published as: CN205535267U

Abstract

An LED light tube comprising: a light strip (1), a transparent cover (2) covering the exterior of the light strip (1), and several LED light sources (3) mounted on the light strip (1). The LED light sources (3) comprise: an LED chip (31) electrically connected to the light strip (1) and a transparent adhesive layer (32) covering a light-emitting side of the LED chip (31). The outer surface (321) on the transparent adhesive layer (32) opposite the LED chip (31) is a coarse surface. The coarse outer surface (321) of the transparent adhesive layer (32) scatters a light emitted by the LED chip (31). The light emitted by the point light source is scattered to produce a light providing a planar light source effect, thus preventing the human body from experiencing dizziness caused by a light in the form of a point light source, and ensuring comfort.

Description

LED tube

Technical field

The present application relates to the field of light emitting diodes, and more particularly to an LED tube.

Background technique

A light emitting diode (LED) is a semiconductor light emitting device fabricated by using the principle of semiconductor P-N junction electroluminescence. In the field of lighting, LED energy-saving lamps are gradually replacing the position of halogen lamps and fluorescent lamps. FIG. 1 shows a conventional LED tube design, which mainly includes a lampshade 11, an LED core 13, a light bar 14, an insulating thermal adhesive 15, and a metal heat sink 16. The opening of the lamp cover 11 is provided with a locking portion for fixing the metal heat sink 16, and the LED core particles are mounted on the light bar 14, and the light bar is connected to the metal heat sink 16. In the LED tube, there is a problem that the LED light source is too close to the center of the tube, so that the point light source of the LED is easily seen, and it is difficult to form a surface light source, and some people may cause visual dizziness.

Summary of the invention

The present application aims to solve at least one of the above technical problems to some extent.

The present application provides an LED lamp, comprising: a light bar, a transparent cover disposed outside the light bar, and a plurality of LED light sources mounted on the light bar, the LED light source comprising: An LED chip electrically connected to the light bar, and a transparent adhesive layer coated on the light emitting side of the LED chip, wherein an outer surface of the transparent adhesive layer opposite to the LED chip is rough.

Further, the light bar is at a certain distance from a central axis of the transparent cover.

Further, the light bar is fixed to a heat dissipation base by an insulating and thermally conductive adhesive layer.

Further, the insulating strip of the light strip is coated with a heat radiating material on one side.

Further, the heat radiating material is a ceramic material.

Further, the transparent cover body has a cylindrical shape and has a mounting opening of the light bar.

Further, the light bar is disposed at the mounting opening to close the mounting opening.

Further, the light bar is assembled through the card slot of the mounting opening.

Further, the transparent cover is made of a matte material.

The beneficial effects of the application are:

By providing an LED lamp tube, comprising: a light bar, a transparent cover disposed outside the light bar, and a plurality of LED light sources mounted on the light bar, the LED light source comprising: An LED chip electrically connected, and a transparent adhesive layer coated on a light emitting side of the LED chip, wherein an outer surface of the transparent adhesive layer opposite to the LED chip is rough surface. In this way, the rough outer surface of the transparent adhesive layer can scatter the light emitted by the LED chip, and the light emitted by the point light source can form the light of the surface light source effect by scattering, thereby avoiding the vertigo caused by the light in the form of the point light source, thereby ensuring the vertigo. comfortability.

DRAWINGS

FIG. 1 is a schematic structural view of a prior art LED lamp tube.

2 is a schematic structural view of an LED lamp tube according to an embodiment of the present application.

detailed description

The embodiments of the present application are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are intended to be illustrative, and are not to be construed as limiting.

In the description of the present application, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position of indications such as "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description and the simplified description, and is not intended to indicate or imply that the device or component referred to has a specific orientation, and is constructed and operated in a specific orientation. It is not to be construed as limiting the application.

Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may include one or more of the features either explicitly or implicitly. In the description of the present application, the meaning of "a plurality" is two or more unless specifically and specifically defined otherwise.

In the present application, the terms "installation", "connected", "connected", "fixed" and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless otherwise explicitly stated and defined. , or connected integrally; may be mechanical connection or electrical connection; may be directly connected, or may be indirectly connected through an intermediate medium, and may be internal communication between the two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood on a case-by-case basis.

In the present application, the first feature "on" or "under" the second feature may include direct contact of the first and second features, and may also include first and second features, unless otherwise specifically defined and defined. It is not in direct contact but through additional features between them. Moreover, the first feature "above", "above" and "above" the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly above and above the second feature, or merely the first feature level being less than the second feature.

The present application will be further described in detail below with reference to the accompanying drawings.

Referring to FIG. 2, the embodiment provides an LED lamp tube, which mainly scatters light emitted by the LED chip to form light similar to that emitted by the surface light source.

The LED tube mainly includes a light bar 1, a transparent cover 2 disposed outside the light bar 1, and a plurality of LED light sources 3 mounted on the light bar 1. Specifically, the LED light source 3 includes: an LED chip 31 electrically connected to the light bar 1, and a transparent adhesive layer 32 coated on the light emitting side of the LED chip 31. The outer surface 321 of the transparent adhesive layer 32 opposite to the LED chip 31 is rough. surface.

In this way, the rough outer surface of the transparent adhesive layer can scatter the light emitted by the LED chip, and the light emitted by the point light source can form the light of the surface light source effect by scattering, thereby avoiding the vertigo caused by the light in the form of the point light source, thereby ensuring the vertigo. comfortability.

In this embodiment, the transparent adhesive layer 32 may be a fluorescent adhesive layer or a structure consisting of two transparent sub-gel layers, wherein one transparent sub-layer is a fluorescent layer and the other transparent sub-layer is transparent. Silicone layer.

In this embodiment, in order to enhance the scattering effect of the transparent cover, the light bar 1 is at a certain distance from the central axis of the transparent cover 2, of course, since the transparent adhesive layer 32 itself has a rough surface and has a light scattering effect, in other embodiments In the middle, the light bar 1 can be located near the central axis of the transparent cover 2.

As the LED device itself generates a large amount of heat, as another embodiment, the light bar 1 can be fixed to a heat dissipation base through an insulating and thermally conductive adhesive layer, thereby enhancing the heat dissipation effect.

As a preferred embodiment, the insulating thermally conductive adhesive layer of the light bar 1 is coated with a heat radiating material on one side. Generally, the heat radiating material may be a ceramic material.

In the present embodiment, the light transmissive cover 2 may have a cylindrical shape and have a mounting opening 21 of the light bar 1. The light bar 1 is placed at the mounting opening 21 to close the mounting opening 21. In the present embodiment, the light bar 1 is assembled by a card slot in which the opening 21 is mounted. In other embodiments, the light bar 1 can also be mounted to the transparent cover 2 by a mounting bracket.

In order to further enhance the scattering effect of the transparent cover, as another preferred embodiment, the transparent cover 2 may be made of a matte material such as frosted glass or frosted plastic.

In the description of the present specification, reference is made to the descriptions of the terms "one embodiment", "some embodiments", "one embodiment", "some embodiments", "example", "specific examples", or "some examples" The specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the application. In the present specification, the schematic representation of the above terms does not necessarily mean the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

The above content is a further detailed description of the present application in combination with a specific implementation manner, and the application cannot be identified. The specific implementation is limited to these descriptions. For the ordinary person skilled in the art to which the present invention pertains, a number of simple deductions or substitutions may be made without departing from the spirit of the present application.

Claims

An LED lamp tube includes: a light bar; a transparent cover body disposed outside the light bar; and a plurality of LED light sources mounted on the light bar, the LED light source comprising: electrically connected to the light bar The connected LED chip and the transparent adhesive layer coated on the light emitting side of the LED chip are characterized in that the outer surface of the transparent adhesive layer opposite to the LED chip is rough.
The LED tube of claim 1 wherein said strip of light is at a distance from a central axis of said transparent cover.
The LED tube of claim 1 wherein said strip of light is secured to a heat sink by an insulating thermally conductive adhesive layer.
The LED tube according to claim 2, wherein the insulating strip is provided with a heat radiating material on one side of the strip.
The LED tube of claim 4 wherein said heat radiating material is a ceramic material.
The LED tube according to any one of claims 1 to 5, wherein the light-transmitting cover has a cylindrical shape and has a mounting opening of the light bar.
The LED tube of claim 6 wherein said light strip is disposed over said mounting opening to enclose said mounting opening.
The LED lamp of claim 7, wherein said light bar is assembled through a card slot of said mounting opening.
The LED tube according to claim 1, wherein the transparent cover is made of a matte material.