WO2016127673A1

WO2016127673A1 - Three-dimensional luminous led point light source and illuminating device

Info

Publication number: WO2016127673A1
Application number: PCT/CN2015/093851
Authority: WO
Inventors: 高鞠
Original assignee: 苏州晶品新材料股份有限公司
Priority date: 2015-02-12
Filing date: 2015-11-05
Publication date: 2016-08-18
Also published as: CN104681703A

Abstract

Provided are a three-dimensional luminous LED point light source and illuminating device, the three-dimensional luminous LED point light source (100) comprising a fluorescent ceramic member (10), light emitting chips (20) and electrodes (30). The fluorescent ceramic member (10) has a front surface and a back surface. The light emitting chips (20) are respectively adhered to the front surface and the back surface of the fluorescent ceramic member (10). The light emitting chip (20) on either surface has a plurality of LEDs (22) electrically connected to each other and having a space therebetween. The plurality of LEDs (22) are closely arranged on the fluorescent ceramic member (10) in an array, and are adhered and sealed at the fluorescent ceramic member (10) via a silica gel and a fluorescent powder (21) or via a resin and the fluorescent powder (21). The electrodes (30) are respectively provided on the front surface and the back surface of the fluorescent ceramic member (10). The electrode (30) is electrically connected to the LEDs (22) of the light emitting chip (20) on the surface where the electrode (30) is located. The LED point light source has a high illumination intensity, a small light emitting volume and closely arranged light emitting points.

Description

Stereoscopic LED point light source and lighting device

Technical field

The invention relates to the field of illumination technology, in particular to a stereo illumination type LED point light source and an illumination device using the same.

Background technique

A Light-Emitting Diode (LED) is a semiconductor electronic component that emits light. This kind of electronic component appeared as early as 1962. In the early days, it only emitted low-light red light. Later, it developed other versions of monochromatic light. The light that has been emitted so far has spread all over visible light, infrared light and ultraviolet light, and the luminosity has increased to equivalent. The luminosity. The use is also used as an indicator light, display panel, etc.; with the continuous advancement of technology, light-emitting diodes have been widely used in displays, television lighting decoration and lighting.

However, existing light sources using light-emitting diodes often have problems such as low light source density and small light-emitting angle. Therefore, the use requirements of some lighting places cannot be fully satisfied.

Therefore, in order to solve the above problems, it is necessary to propose a further solution.

Summary of the invention

An object of the present invention is to provide a stereoscopic LED point light source and an illumination device using the same.

To achieve the above object, the present invention provides a stereoscopic LED point light source comprising: a fluorescent ceramic, a light emitting chip, and an electrode;

The fluorescent ceramic has a front side and a back side, and the light emitting chips are respectively coupled to the front and back sides of the fluorescent ceramic; the light emitting chip on either side has a plurality of electrically connected LEDs, and the plurality of LEDs have a spacing, and a plurality of LEDs are densely arranged in an array on the fluorescent ceramic, the plurality of LEDs being combined by a silica gel and a phosphor or a resin and a phosphor and sealed on the fluorescent ceramic;

The electrodes are respectively disposed on the front and back sides of the fluorescent ceramic, and the electrodes are electrically connected to the LEDs of the light-emitting chips on the surface.

As an improvement of the stereoluminescent LED point light source of the present invention, the fluorescent ceramic is a transparent ceramic substrate which is one of alumina, YAG, ZnO or AlON.

As an improvement of the stereoluminescent LED point light source of the present invention, the fluorescent ceramic contains a trace rare earth luminescent material, and the molar ratio of the trace rare earth luminescent material is less than 1%.

As an improvement of the stereoscopic LED point light source of the present invention, the fluorescent ceramic has a thickness of 0.3 to 3 mm.

As an improvement of the stereoscopic LED point light source of the present invention, the spacing between the LEDs in any of the light-emitting chips is less than or equal to the length of the LED itself.

As an improvement of the stereoscopic LED point light source of the present invention, the LED in any of the light-emitting chips may be combined with the fluorescent ceramic by plastic sealing or filming.

As an improvement of the stereoscopic LED point light source of the present invention, the electrode is combined with the fluorescent ceramic by printing, or sintering, or electroplating, or vacuum coating, and the combination of the electrode and the fluorescent ceramic The range of force is 5Mpa to 20Mpa.

As an improvement of the stereoscopic LED point light source of the present invention, the electrode is a metal electrode, and the metal electrode is one of silver, copper, gold, nickel, and aluminum.

In order to achieve the above object, the present invention also provides a lighting device comprising: a stereoscopic LED point light source, a driving unit, and a light emitting cover according to the above;

The stereoscopic LED point light source is disposed at a focus position of the illuminating lamp cover, and the driving unit is combined with an electrode of the stereo illuminating LED point light source.

As an improvement of the illumination device of the present invention, the drive unit is combined with the electrode by contact, or welding, or cementing.

Compared with the prior art, the beneficial effect of the present invention is that the stereoscopic LED point light source of the present invention has the advantages of high illumination intensity, small illumination volume, and dense distribution of light-emitting points, and the three-dimensional illumination when illuminated A larger illumination angle facilitates direct replacement of the light source in a conventional body light source illumination system.

DRAWINGS

1 is a schematic plan view showing a specific embodiment of a stereoscopic LED point light source according to the present invention;

Figure 2 is a side view of the stereoscopic LED point light source of Figure 1;

3 is a schematic plan view of a specific embodiment of a lighting device of the present invention.

detailed description

The invention will now be described in further detail with reference to the drawings. The drawings are simplified schematic diagrams, and only the basic structure of the present invention is illustrated in a schematic manner, and thus only the configurations related to the present invention are shown.

Changes and modifications as shown in Figures 1-3. The technical scope of the present invention is not limited to the contents of the specification, and the technical scope thereof must be determined according to the scope of the claims.

As shown in FIG. 1 and FIG. 2, the stereoscopic LED point light source 100 of the present invention comprises: a fluorescent ceramic 10 and a light emitting chip. 20. And electrode 30.

The fluorescent ceramic 10 is a transparent ceramic substrate which may contain a trace amount of a rare earth luminescent material such as Ce or Eu. The proportion of the trace rare earth luminescent material is less than 1% (molar ratio). The transparent ceramic substrate is one of alumina, YAG, ZnO or AlON. In addition, the fluorescent ceramics may be surface-polished, arc-etched, and coated to enhance optical properties as needed. Preferably, the fluorescent ceramic has a thickness of 0.3 to 3 mm.

The fluorescent ceramic 10 has a front side and a back side, and the light emitting chips 20 are bonded to the front and back sides of the fluorescent ceramic 10, respectively. The light-emitting chip 20 on either side has a plurality of electrically connected LEDs 22, in particular a plurality of LEDs 22 are connected by wires on a gold wire or a ceramic surface. Wherein, the plurality of LEDs 22 have a spacing therebetween, and the plurality of LEDs 22 are densely arranged in an array on the fluorescent ceramics 10. Specifically, the plurality of LEDs 22 pass through a mixture 21 of silica gel and phosphor or resin and phosphor. The mixture 21 is bonded and sealed on the fluorescent ceramic 10. Thus, the stereoscopic LED point light source of the present invention has a high illumination intensity. Preferably, the spacing between the LEDs 22 in any of the light-emitting chips 20 is less than or equal to the length of the LEDs 22 themselves.

In the above embodiment, the LED 22 in any of the light-emitting chips 20 may be combined with the fluorescent ceramic 10 by plastic sealing or filming.

The electrodes 30 are respectively disposed on the front and back surfaces of the fluorescent ceramics 10, and the electrodes 30 are electrically connected to the LEDs 22 of the light-emitting chip 20 on the surface. Electrical energy can be delivered to the LEDs 22 through the electrodes 30 to illuminate them. The electrode 30 of either side includes a positive electrode and a negative electrode.

The electrode 30 may be a metal electrode, and the metal electrode is one of silver, copper, gold, nickel, and aluminum. And the electrode 30 can be combined with the fluorescent ceramic by printing, or sintering, or electroplating, or vacuum coating, wherein the bonding force between the electrode 30 and the fluorescent ceramic 10 ranges from 5 MPa to ～ 20Mpa.

As shown in FIG. 3, the present invention further provides an illumination device based on the above-described stereoscopic LED point light source, which particularly includes: a stereoscopic LED point light source 100, a driving unit 200, and a illuminating lamp cover 300 according to the above. .

The stereoscopic LED point light source 100 is disposed at a focus position of the illuminating lamp cover 300 to assist in enhancing the illumination effect of the point source. The driving unit 200 is combined with an electrode in the stereoscopic LED point light source 100 to provide electrical energy for illumination for the point source. Specifically, the driving unit 200 and the electrode may be combined by contact, or welding, or cementing.

In summary, the stereoscopic LED point light source of the present invention has the advantages of high illumination intensity, small illumination volume, and dense distribution of light-emitting points, and the three-dimensional illumination when illuminated, has a large illumination angle, and is advantageous for direct Replace the light source in a traditional body light source illumination system.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and The present invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the invention is defined by the appended claims instead All changes in the meaning and scope of equivalent elements are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim.

In addition, it should be understood that although the description is described in terms of embodiments, not every embodiment includes only one independent technical solution. The description of the specification is merely for the sake of clarity, and those skilled in the art should regard the specification as a whole. The technical solutions in the respective embodiments may also be combined as appropriate to form other embodiments that can be understood by those skilled in the art.

Claims

A stereoscopic LED point light source, characterized in that the stereoscopic LED point light source comprises: a fluorescent ceramic, a light emitting chip, and an electrode;

The fluorescent ceramic has a front side and a back side, and the light emitting chips are respectively coupled to the front and back sides of the fluorescent ceramic; the light emitting chip on either side has a plurality of electrically connected LEDs, and the plurality of LEDs have a spacing, and a plurality of LEDs are densely arranged in an array on the fluorescent ceramic, the plurality of LEDs being combined by a silica gel and a phosphor or a resin and a phosphor and sealed on the fluorescent ceramic;

The electrodes are respectively disposed on the front and back sides of the fluorescent ceramic, and the electrodes are electrically connected to the LEDs of the light-emitting chips on the surface.
The stereoscopic LED point light source according to claim 1, wherein the fluorescent ceramic is a transparent ceramic substrate, and the transparent ceramic substrate is one of alumina, YAG, ZnO or AlON.
The stereoscopic LED point light source according to claim 1, wherein the fluorescent ceramic contains a trace rare earth luminescent material, and the molar ratio of the trace rare earth luminescent material is less than 1%.
The stereoscopic LED point light source according to claim 1, wherein the fluorescent ceramic has a thickness of 0.3 to 3 mm.
The stereoscopic LED point light source according to claim 1, wherein a pitch between the LEDs in any of the light-emitting chips is less than or equal to a length of the LED itself.
The stereoscopic LED point light source according to claim 1, wherein the LED in the light-emitting chip is also combined with the fluorescent ceramic by plastic sealing or filming.
The stereoscopic LED point light source according to claim 1, wherein the electrode is combined with the fluorescent ceramic by printing, or sintering, or electroplating, or vacuum coating, the electrode and the fluorescent device. The bonding force between ceramics ranges from 5 MPa to 20 MPa.
The stereoscopic LED point light source according to claim 1, wherein the electrode is a metal electrode, and the metal electrode is one of silver, copper, gold, nickel, and aluminum.
A lighting device, comprising: the stereoscopic LED point light source, the driving unit, and the illuminating lamp cover according to any one of claims 1-8;

The stereoscopic LED point light source is disposed at a focus position of the illuminating lamp cover, and the driving unit is combined with an electrode of the stereo illuminating LED point light source.
The illumination device according to claim 9, wherein said driving unit is coupled to said electrode by contact, or welding, or cementing.