CN105546371B

CN105546371B - Large-angle bulb shell structure

Info

Publication number: CN105546371B
Application number: CN201610050993.2A
Authority: CN
Inventors: 杨小明; 鲍永均; 林祥华
Original assignee: Xiamen Eco Lighting Co Ltd
Current assignee: Xiamen Eco Lighting Co Ltd
Priority date: 2016-01-26
Filing date: 2016-01-26
Publication date: 2020-07-28
Anticipated expiration: 2036-01-26
Also published as: CN105546371A

Abstract

A large-angle bulb shell structure comprises a bulb shell and an L ED light source arranged below the bulb shell, wherein the bulb shell is of a shell structure with an opening at the bottom, a light guide part is arranged in the bulb shell and comprises a light inlet surface, a light guide part and a light outlet part, the light inlet surface is positioned at the bottom of the light guide part and faces the opening, the light outlet part is arranged corresponding to the side wall of the bulb shell, the L ED light source is arranged below the light inlet surface, at least part of light rays emitted by the L ED light source enter the light guide part from the light inlet surface, and the light guide part guides the light rays to the light outlet part and then irradiates out towards the bulb shell.

Description

Large-angle bulb shell structure

Technical Field

The invention relates to an L ED lighting lamp, in particular to a large-angle bulb shell structure.

Background

In recent years, with the continuous progress of lighting technology, L ED is used as a novel green high-efficiency semiconductor light source and is applied in the field of lighting, L ED light source has the advantages of high luminous efficiency, low heat generation, power saving and long service life, so the application is more and more extensive, L ED lamp will gradually replace traditional lighting lamps such as incandescent lamp and halogen lamp, the luminous angle of L ED candle lamp is generally 200-300 degrees, while the candle lamp with transparent bulb structure is generally realized by adding lens or light distributor in order to realize large-angle light emission, the cost of adding lens or light distributor is high and is not neglected, which becomes a big problem of reducing the cost of L ED energy-saving lamp.

Disclosure of Invention

Accordingly, there is a need for a high angle bulb structure that eliminates the lens.

The utility model provides a wide-angle cell-shell structure, including cell-shell and the L ED light source of setting in this cell-shell below, this cell-shell is bottom open-ended shell structure, be equipped with leaded light spare in this cell-shell, this leaded light spare is including going into the plain noodles, leaded light portion and light-emitting portion, this income plain noodles is located the bottom of this leaded light spare and sets up towards this opening, this light-emitting portion corresponds the lateral wall setting of cell-shell, this L ED light source sets up the below at this income plain noodles, at least partial light that this L ED light source sent gets into the leaded light portion from this income plain noodles, this leaded light portion shines away towards this cell-shell after leading light to light-emitting portion.

Compared with the prior art, the large-angle bulb shell structure has the advantages that the light guide piece is arranged in the bulb shell, so that light emitted by the L ED light source enters the light guide part from the light inlet surface, the light guide part guides the light to the light outlet part and then irradiates the light out to realize large-angle illumination.

Drawings

Fig. 1 is a schematic diagram of a high angle bulb shell structure according to a first embodiment of the present invention.

Fig. 2 is a schematic view of a bulb in another embodiment of the invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Please refer to fig. 1-2 for a large angle L ED lamp according to a first embodiment of the present invention.

Referring to fig. 1, a large-angle light bulb structure 100 includes a light bulb 10 and an L ED light source 30 disposed below the light bulb 10, the light bulb 10 is a shell structure with an open bottom, a light guide member 20 is disposed in the light bulb 10, the light guide member 20 includes a light incident surface 21, a light guide portion 22 and a light emitting portion 23, the light incident surface 21 is disposed at the bottom of the light guide member 20 and faces the open bottom, the light emitting portion 23 is disposed corresponding to a sidewall of the light bulb 10, the light guide member 20 can be higher or lower than the open bottom of the light bulb 10, the L ED light source 30 is disposed below the light incident surface 21, at least a portion of light 31 emitted from the L ED light source 30 enters the light guide portion 22 from the light incident surface 21, the light guide portion 22 guides the light 31 to the light emitting portion 23 and then irradiates the light toward the sidewall of the light bulb 10, the light guide member 20 and the light bulb 10 are integrally formed as a transparent or semi-transparent structure, which reduces production cost, and also simplifies the structure of the light guide member 10, prevents an illumination effect if the light guide member 20 and the light loss is formed during a light return interface, and the light return path loss is reduced.

Therefore, the L ED light source 30 emits light into the light guide portion 22 from the light incident surface 21, and the light guide portion 22 guides the light 31 to the light emergent portion 23 and then emits the light outward to realize large-angle illumination.

Referring to fig. 1, the light guide member 20 is a hollow annular shell structure, the light incident surface 21 is an annular structure, the L ED light sources 30 are plural, the L ED light sources 30 are annularly arranged opposite to the light incident surface 21, so that most of the light rays 31 emitted by the L ED light sources 30 can enter the light guide member 22 from the light incident surface 21, and the optical efficiency is improved, the inner side wall 222 and the outer side wall 221 of the light guide member 20 cooperate to guide the light rays 31 from the light incident surface 21 to the light emergent portion 23, that is, the inner side wall 222 and the outer side wall 221 of the light guide member 20 are combined into the light guide member 22, the light rays 31 are totally reflected for multiple times in the light guide member 22, and the light rays 31 are gradually guided toward the light emergent portion 23.

The light-emitting portion 23 is integrally connected to a side wall of the bulb case 10. The light emergent portion 23 is an annular structure inclined with respect to the light incident surface 21, and the outer diameter of the light emergent portion 23 gradually decreases in a direction away from the light incident surface 21. Therefore, when the light ray 31 reaches the light-emitting portion 23, total reflection does not occur any more, and the light ray 31 is emitted outward from the light-emitting portion 23. Preferably, a diffuse reflection layer 231 is disposed on the inner surface of the light-emitting portion 23, and the light 31 after diffuse reflection is emitted outwards through the surface of the bulb shell 10. Furthermore, a light diffusion layer is disposed on the bulb shell 10 corresponding to the light emergent portion 23, so that the light 31 can be uniformly irradiated and the glare can be effectively reduced.

The LED light source module further comprises a substrate 40, the L ED light source 30 is arranged on the substrate 40, the bottom of the bulb shell 10 is covered on the periphery of the substrate 40, the light incoming surface 21 and the L ED light source 30 are separated to form a gap, so that part of light 31 emitted by the L ED light source 30 passes through the gap to directly irradiate on the bulb shell 10, part of light 31 emitted by the L ED light 31 passes through the gap to directly irradiate on the bulb shell 10, part of light 31 enters from the light incoming surface 21, passes through the light guide portion 22 to directly irradiate on the light emitting portion 23 and finally irradiates outwards, and most of the light 31 enters from the light incoming surface 21, reaches the light emitting portion 23 under the reflection and guide of the light guide portion 22 and finally irradiates outwards.

The bottom of the bulb 10 is provided with a snap structure for snap-fitting the bulb 10 to a base body (not shown). The bulb shell 10 is a candle bulb shell 10 or a bulb shell 10. The structure of the bulb shell 10 is simplified, and the structure of the bulb shell 10 assembled with the lamp holder body is also simplified, so that the cost and the production of the product are optimized.

In summary, the large-angle light-emitting bulb shell structure 100 has the advantages of simple structure and convenient assembly, by arranging the light guide member 20 in the bulb shell 10, the light emitted from the L ED light source 30 enters the light guide portion 22 from the light incident surface 21, and the light guide portion 22 guides the light 31 to the light emergent portion 23 and then irradiates the light outwards to realize large-angle illumination.

It will be appreciated that the light guide 20 is intended to guide the light 31 to ultimately radiate outward, and thus the light guide 20 may not be a complete annular housing structure, as shown in FIG. 2, in order to save material, the light guide 20a may be provided only above the L ED light source 30, so that the light guide 20a becomes an annular housing structure with a plurality of notches.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A large-angle bulb shell structure comprises a bulb shell and L ED light sources arranged below the bulb shell, wherein the bulb shell is a shell structure with an opening at the bottom, the large-angle bulb shell structure is characterized in that a light guide part is arranged in the bulb shell, the light guide part comprises a light inlet face, a light guide part and a light outlet part, the light inlet face is positioned at the bottom of the light guide part and faces the opening, the light outlet part is arranged corresponding to the side wall of the bulb shell, the L ED light sources are arranged below the light inlet face, at least part of light rays emitted by the L ED light sources enter the light guide part from the light inlet face, the light guide part guides the light rays to the light outlet part and then irradiates the light rays out of the bulb shell, the light guide part is a hollow annular shell structure, the light inlet face is of an annular structure, the number of the L ED light sources is multiple, the L ED light sources are arranged opposite to the light inlet face in an annular arrangement, the inner side wall of the light guide part is matched with the outer side.

2. The large-angle bulb shell structure of claim 1, wherein the inner sidewall is a torus having a central axis of the bulb shell as an axis, and the outer sidewall has a larger diameter than the inner sidewall.

3. The high angle bulb structure of claim 1, further comprising a substrate, wherein the L ED light sources are disposed on the substrate, the bulb cover is disposed around the substrate, the light incident surface is spaced apart from the L ED light sources to form a gap such that a portion of the light emitted by the L ED light sources passes through the gap and directly impinges on the bulb.

4. The large-angle bulb shell structure of claim 1, wherein the light emergent portion is integrally connected to a sidewall of the bulb shell.

5. The large-angle bulb shell structure of claim 4, wherein the light emergent portion is an annular structure disposed obliquely with respect to the light incident surface, and an outer diameter of the light emergent portion gradually decreases in a direction away from the light incident surface.

6. The high angle bulb casing structure of claim 1, wherein the bottom of the bulb casing is provided with snap features for snap-fitting the bulb casing to a base body.

7. The large-angle bulb shell structure of claim 1, wherein the light guide and the bulb shell are of an integrally formed transparent or translucent structure.

8. The wide-angle bulb shell structure of claim 7, wherein the bulb shell is a candle bulb shell or a bulb shell structure.