CN203036331U - Large angle LED lights - Google Patents

Abstract

The utility model discloses a luminous LED lamp of wide-angle, including lamp holder, radiator, LED light source and lamp shade, this radiator setting is on this lamp holder, and this lamp shade bottom is connected with this radiator top surface outer edge, still includes support frame and transparent substrate, and this support frame setting is central at this radiator top surface, and this transparent substrate sets up at this support frame terminal surface, and this LED light source setting is at this transparent substrate top, and this transparent substrate bottom just covers to this LED light source department has first phosphor layer. The utility model discloses a luminous LED lamp of wide-angle uses transparent substrate, and the two-way luminous effect is realized to the single face LED light source of setting on transparent substrate, saves the LED light source quantity, and further, the reflector layer of radiator top surface launches the light of directive radiator, makes its directive lamp shade, has improved luminous efficiency.

Description

Large angle LED lights

technical field

The utility model relates to the field of LED lighting, in particular to a large-angle light-emitting LED lamp.

Background technique

The light emission of the LED chip comes from the photons emitted by the recombination of holes and electrons in the P-N junction. light extraction efficiency. For example, the Chinese patent application whose publication date is November 28, 2012 and whose application number is CN201210276961.6 discloses a convective heat dissipation LED light bulb with a small radiator, a large light-emitting area and good heat dissipation. The utility model comprises a lamp holder, a light-transmitting cover, a ventilation body, a drive circuit, and a heat-conducting column with a hollow inner cavity. The ventilation body is respectively connected with the lamp head and the light-transmitting cover. Several LEDs are provided. The LED light bulb disclosed in this patent application achieves a large-area light-emitting effect by arranging multiple LEDs longitudinally on the outer wall of the heat-conducting column. This solution uses a large number of LEDs, which increases the product cost. Moreover, the LEDs can only emit light in one direction, and the light output efficiency is low. . Therefore, it is necessary to provide a product solution that can use fewer LEDs to obtain a larger light-emitting area and higher light extraction efficiency.

Utility model content

In order to solve the above-mentioned thermal design defects of LED bulbs, this proposal proposes a large-angle light-emitting LED lamp structure with less LED light source consumption and high light extraction efficiency.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:

Provided is a large-angle luminous LED lamp, which includes a lamp base, a radiator, an LED light source, and a lampshade. A support frame and a transparent substrate, the support frame is arranged on the top surface of the heat sink, the transparent substrate is arranged on the end surface of the support frame, the LED light source is arranged on the top of the transparent substrate, and the bottom of the transparent substrate is covered with the first LED light source. A phosphor layer.

Wherein, the surface of the LED light source is covered with a second phosphor layer.

Wherein, the area of the first phosphor layer at the bottom of the transparent substrate is greater than the area of the second phosphor layer covering the surface of the LED light source.

Wherein, the number of the LED light sources is greater than or equal to two, and the LED light sources are arranged in an equiangular circle on the end surface of the transparent substrate with the support frame as the central axis.

Wherein, a plurality of ribs radially extend from the end surface of the support frame, and the plurality of ribs are arranged at intervals between two LED light sources.

Wherein, the transparent substrate is thermally connected with the support frame and the ribs of the support frame through thermally conductive glue.

Wherein, the surface of the transparent substrate is covered with an electrical connection layer, and the LED light sources are connected in series or in parallel through the electrical connection layer.

Wherein, the top of the support frame is located at the inner center of the lampshade and slightly deviates from the top of the lampshade.

Wherein, the top surface of the radiator is provided with a reflective layer around the support frame.

Wherein, the supporting frame is integrally formed with the radiator.

The beneficial effects of the utility model are: the large-angle luminous LED lamp of the utility model uses a transparent substrate, and the transparent substrate can be an alumina ceramic material, and as a package substrate of a large-angle luminous LED light source, the heat dissipation rate can be improved; the heat dissipation of the utility model The device is connected to a support frame, and the transparent substrate is fixed on the end surface of the support frame. The end surface of the support frame radially extends a plurality of ribs, and the plurality of ribs are arranged at intervals between two LED light sources, which increases the emission of the LED light source. The contact area between the heat and the radiator further improves the heat dissipation efficiency; the single-sided LED light source set on the transparent substrate achieves a two-way light effect, saving the amount of LED light source. Further, the reflective layer on the top surface of the radiator will be directed to the radiator. The light is emitted so that it hits the lampshade, which improves the light extraction efficiency.

Description of drawings

Fig. 1 is a three-dimensional exploded view of a large-angle light-emitting LED lamp in the first embodiment of the utility model;

Fig. 2 is a perspective view of the large-angle emitting LED lamp shown in Fig. 1 .

Fig. 3 is a cross-sectional view along line A-A shown in Fig. 2 .

Description of main component symbols

Lamp holder 10; radiator 20; LED light source 30; lampshade 40; support frame 50; rib 51;

Transparent substrate 60 ; first phosphor layer 71 ; second phosphor layer 72 ; reflective layer 80 .

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the present utility model in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

Please refer to FIG. 1 and FIG. 2 together. A large-angle light-emitting LED lamp 100 includes a lamp cap 10, a radiator 20, an LED light source 30, and a lampshade 40. The radiator 20 is arranged on the lamp cap 10. The outer edge of the top surface of the radiator 20 is connected. In this embodiment, the lampshade 40 is a diffused light-transmitting lampshade, for example, a light-diffusing PC lampshade or a rubberized glass lampshade.

The large-angle light-emitting LED lamp 100 also includes a support frame 50 and a transparent substrate 60. The support frame 50 is arranged at the center of the top surface of the radiator 20. In this embodiment, the support frame 50 and the radiator 20 are formed integrally. . The transparent substrate 60 is disposed on the end surface of the support frame 50 , and in this embodiment, the transparent substrate is a transparent alumina ceramic substrate. The top of the support frame 50 is located at the inner center of the lampshade 40 slightly biased towards the top of the lampshade 40, and the top surface of the radiator 20 is provided with a reflective layer 80 around the support frame 50,

The LED light source 30 is arranged on the top of the transparent substrate 60 , the number of the LED light sources 30 is at least two, and the LED light sources 30 are arranged on the top of the transparent substrate 60 with the support frame 50 as the central axis in an equiangular circle. The surface of the transparent substrate 60 is covered with an electrical connection layer, and the LED light sources 30 are connected in series or in parallel through the electrical connection layer. The bottom of the transparent substrate 60 is covered with a first phosphor layer 71 right at the LED light source. In this embodiment, the surface of the LED light source 30 is covered with a second phosphor layer 72, and the area of the first phosphor layer 71 at the bottom of the transparent substrate 60 is larger than that of the second phosphor layer 72 covering the surface of the LED light source 30. area.

A plurality of ribs 51 extend radially from the end surface of the support frame 50 , and the plurality of ribs 51 are arranged between the two LED light sources 30 at intervals. In this embodiment, the transparent substrate 60 is thermally connected to the support frame 50 and the ribs 51 of the support frame through thermally conductive glue.

The beneficial effects of the utility model are: the large-angle luminous LED lamp of the utility model uses a transparent substrate, and the transparent substrate can be an alumina ceramic material, and as a package substrate of a large-angle luminous LED light source, the heat dissipation rate can be improved; the heat dissipation of the utility model The device is connected to a support frame, and the transparent substrate is fixed on the end surface of the support frame. The end surface of the support frame radially extends a plurality of ribs, and the plurality of ribs are arranged at intervals between two LED light sources, which increases the emission of the LED light source. The contact area between the heat and the heat sink further improves the heat dissipation efficiency; the single-sided LED light source set on the transparent substrate realizes a two-way light effect, saving the amount of LED light source. Further, the reflective layer 80 on the top surface of the heat sink will radiate to the heat sink The light is emitted to the lampshade 40, which improves the light extraction efficiency.

The above descriptions are only embodiments of the present utility model, and are not intended to limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the description of the utility model and the contents of the accompanying drawings, or directly or indirectly used in other Related technical fields are all included in the patent protection scope of the present utility model in the same way.

Claims (10)

1. A large-angle luminous LED lamp, comprising a lamp holder, a radiator, an LED light source and a lampshade, the radiator is arranged on the lamp holder, the bottom of the lampshade is connected to the outer edge of the top surface of the radiator, and it is characterized in that it also includes a support frame and a transparent substrate, the support frame is arranged on the top surface of the radiator, the transparent substrate is arranged on the end surface of the support frame, the LED light source is arranged on the top of the transparent substrate, and the bottom of the transparent substrate is covered with a first Phosphor layer. 2. The wide-angle LED lamp according to claim 1, characterized in that, the surface of the LED light source is covered with a second phosphor layer. 3. The wide-angle LED lamp according to claim 2, wherein the area of the first phosphor layer at the bottom of the transparent substrate is larger than the area of the second phosphor layer covering the surface of the LED light source. 4. The large-angle light-emitting LED lamp according to any one of claims 1 to 3, characterized in that, the number of the LED light sources is greater than or equal to two, and the LED light sources are arranged in an equiangular circle around the supporting frame The transparent substrate end face of the central axis. 5 . The large-angle light-emitting LED lamp according to claim 4 , wherein a plurality of ribs extend radially from the end surface of the support frame, and the plurality of ribs are arranged at intervals between two LED light sources. 6 . The large-angle light-emitting LED lamp according to claim 5 , wherein the transparent substrate is thermally connected to the support frame and the ribs of the support frame through thermally conductive glue. 7 . 7. The large-angle LED lamp according to claim 4, wherein the surface of the transparent substrate is covered with an electrical connection layer, and the LED light sources are connected in series or in parallel through the electrical connection layer. 8 . The large-angle LED lamp according to claim 1 , wherein the top of the support frame is located at the inner center of the lampshade and slightly deviates from the top of the lampshade. 9. The large-angle LED lamp according to claim 1, wherein a reflective layer is arranged on the top surface of the radiator around the supporting frame. 10. The large-angle light-emitting LED lamp according to claim 1, wherein the support frame and the heat sink are integrally formed.

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