CN110762425B

CN110762425B - Light engine and LED lamp

Info

Publication number: CN110762425B
Application number: CN201910953712.8A
Authority: CN
Inventors: 汪楷; 欧爱民; 黎安淼
Original assignee: Dongguan WAC Lighting Co Ltd; WAC Lighting Co
Current assignee: Dongguan WAC Lighting Co Ltd; WAC Lighting Co
Priority date: 2019-10-09
Filing date: 2019-10-09
Publication date: 2022-04-01
Anticipated expiration: 2039-10-09
Also published as: CN110762425A

Abstract

The invention discloses a light engine and an LED lamp, wherein the light engine comprises an LED module, an inner cover, a positioning column and a diffusion cover which are sequentially arranged from inside to outside, the LED module is fixedly arranged in the inner cover, and the inner cover is fixed with the diffusion cover through the positioning column. According to the light engine provided by the invention, the LED module is fixed in the inner cover, and the inner cover is fixed with the diffusion cover by the positioning column, so that the LED module and the inner cover are fixed, and the light-emitting uniformity of the light engine is improved.

Description

Light engine and LED lamp

Technical Field

The invention relates to the field of lighting equipment processing, in particular to a light engine and an LED lamp.

Background

Compared with the traditional light source, the Light Emitting Diode (LED) has the advantages of higher luminous efficiency, low radiation, low power consumption, long service life, low driving voltage, quick start, environmental protection, shock resistance, pressure resistance, small size of the lamp and the like, the LED is widely applied to the lighting equipment taking the LED as the light source of the fluorescent lamp at present, and at present, the lighting effect of the LED is directly influenced by a light engine in the LED lamp, so the light engine is one of the most important components in the LED lamp.

The existing light engine usually comprises an LED module and an inner cover, the inner cover is arranged outside the LED module, light emitted by the LED module is diffused through the inner cover, and the LED module and the inner cover are usually co-extruded or later-period assembled. The LED module and the inner cover of later stage equipment form because the LED module receives one side in self gravity influence easy erroneous tendency inner cover to influence the even light-emitting effect of actual photo engine.

In view of the above, the present invention is particularly proposed.

Disclosure of Invention

The invention provides a light engine and an LED lamp, which solve the problem of fixing an LED module, thereby improving the light-emitting uniformity of the light engine.

As the conception, the invention adopts the following technical scheme:

the utility model provides a light engine, includes by interior LED module, inner cover, reference column and the diffusion cover that sets gradually outward, the LED module set firmly in the inner cover, the inner cover passes through the reference column with the diffusion cover is fixed.

Optionally, the LED module is disposed in the center of the inner cover, the inner cover and the diffusion cover are coaxially disposed, and the axial lengths of the inner cover and the diffusion cover are equal.

Optionally, the LED module includes a substrate and LED beads, the LED beads are mounted on the substrate, and two ends of the substrate are fixed to the inner cover.

Optionally, the LED lamp bead is packaged by CSP.

Optionally, the number of the substrates is two, and one sides of the two substrates, on which the LED beads are not mounted, are attached to each other.

Optionally, the inner cover is in a ring-shaped structure, a plurality of first strip-shaped sawteeth are arranged on the inner surface of the inner cover, the first strip-shaped sawteeth are sequentially and tightly distributed in the circumferential direction, and two end portions of the substrate are clamped between two adjacent first strip-shaped sawteeth.

Optionally, the surface of inner cover is equipped with a plurality of second bar sawtooth, and is a plurality of the inseparable circumference of second bar sawtooth distributes in proper order, reference column one end is fixed one on the second bar sawtooth or adjacent two between the second bar sawtooth, just the other end of reference column is fixed the internal surface of diffusion cover.

Optionally, the positioning columns are provided in a plurality and are uniformly distributed along the circumferential direction of the outer surface of the inner cover.

Optionally, the positioning column is made of a transparent material.

An LED lamp comprising a light engine as claimed in any one of the preceding claims.

The invention has the advantages of

According to the light engine and the LED lamp, the LED module is fixed in the inner cover, and the inner cover and the diffusion cover are further fixed by the positioning columns, so that the LED module and the inner cover are fixed, and the light-emitting uniformity of the light engine is improved.

Drawings

FIG. 1 is a front view of a light engine provided in accordance with an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a light engine according to an embodiment of the present invention.

Wherein

1. An LED module; 11. a substrate; 12. LED lamp beads; 2. an inner cover; 21. a first bar-shaped sawtooth; 22. a second bar-shaped saw tooth; 3. a positioning column; 4. a diffusion cover.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "one end" and "the other end" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "one end" and "the other end" are two different positions.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

In order to solve the problem that in actual use of an existing LED lamp, an LED module 1 inside a light engine is prone to be biased to one side of an inner cover 2 due to the influence of self gravity, so that light emitted from the LED lamp is uneven, the present invention provides a light engine, as shown in fig. 1 and 2, wherein fig. 1 is a front view of the light engine provided by an embodiment of the present invention, and fig. 2 is a schematic structural view of the light engine provided by the embodiment of the present invention. This light engine includes LED module 1, inner cover 2, reference column 3 and the diffusion cover 4 that sets gradually from inside to outside, and this LED module 1 is fixed in inner cover 2, and inner cover 2 is fixed with diffusion cover 4 through reference column 3. LED module 1 obtains fixedly in inner cover 2, and inner cover 2 is fixed through reference column 3 with outside diffusion cover 4 simultaneously, further realizes LED module 1's fixed to in making the light engine use, LED module 1 can not squint, and then has effectively improved the light-emitting degree of consistency of light engine and LED lamp.

Preferably, above-mentioned LED module 1 is fixed in inner cover 2 center, furthermore, inner cover 2 and diffusion cover 4 are coaxial setting and inner cover 2 is fixed with diffusion cover 4 through reference column 3 for coaxial setting, inner cover 2 and diffusion cover 4 axial length equal, through being fixed in inner cover 2 center with LED module 1, inner cover 2 is fixed with diffusion cover 4 through reference column 3 and inner cover 2 and diffusion cover 4 coaxial setting simultaneously, solved LED module 1 and easily deflected to inner cover 2 one side, thereby inner cover 2 easily deflects to diffusion cover 4 one side and arouses LED module 1 to deflect to inner cover 2 and/or diffusion cover 4 one side and lead to the inhomogeneous problem of light-emitting engine and LED lamp actual light-emitting, and simultaneously, inner cover 2 and diffusion cover 4 axial length equal, ensured that the light that LED module 1 sent all sees through diffusion cover 4 and disperses again through inner cover 2 earlier, the light-emitting uniformity of light engine has further been improved. Alternatively, in practical use of the light engine, the inner cover 2 and the diffusion cover 4 need to be closed at both axial ends, both to ensure safety and to prevent dust from entering the interior thereof.

Preferably, the LED module 1 includes a substrate 11 and LED beads 12, the LED beads 12 are mounted on the substrate 11, and two ends of the substrate 11 are fixed to the inner cover 2. Specifically, LED lamp pearl 12 is luminous chip, is equipped with the circuit on the base plate 11, and LED lamp pearl 12 is fixed on 11 surfaces of base plate and is communicated with the circuit. The base plate 11 can be one or two, when the base plate 11 is one, two ends of one base plate 11 are fixed with the inner cover 2, when the base plate 11 is two, one side of two base plates 11 without installing the LED lamp beads 12 is jointed and two ends of the base plates 11 after being jointed are fixed with the inner cover 2, optionally, the two base plates 11 can be jointed together by pasting or welding, in the embodiment, as shown in fig. 1, the base plate 11 is arranged to be jointed with one side without installing the LED lamp beads 12, and the LED module 1 can emit light at a full angle as far as possible by the arrangement. Further, the LED lamp beads 12 on each substrate 11 may be one or multiple, when the LED lamp beads 12 are one, they are disposed in the center of the surface of each substrate 11, when the LED lamp beads 12 are multiple, the LED lamp beads 12 are uniformly distributed along the length direction of each substrate 11 at equal intervals, and the uniform distribution of the LED lamp beads 12 on the substrate 11 makes the light output of the light engine more uniform, in this embodiment, two substrates 11 are respectively provided with one LED lamp bead 12 and located in the center of the substrate 11.

Optionally, LED lamp bead 12 is packaged by CSP (Chip Scale Package). Specifically, firstly, the LED lamp beads 12 are inversely installed on the substrate 11, and the periphery of the substrate is formed by pressing silica gel fluorescent powder, at present, the CSP packaging of the LED in the market mainly has two forms of five-sided light emission and single-sided light emission, and the LED light source adopting the CSP packaging technology of the five-sided light emission in the embodiment further can effectively increase the LED light-emitting angle and reduce the generation of the LED dark surface.

Further, the inner cover 2 is of an annular structure, the inner surface of the inner cover 2 is provided with a plurality of first strip-shaped sawteeth 21, the first strip-shaped sawteeth 21 are sequentially and tightly distributed in the circumferential direction, and two end portions of the base plate 11 are clamped between two adjacent first strip-shaped sawteeth 21. Specifically, as shown in fig. 1 and fig. 2, each first strip-shaped saw tooth 21 is protruded toward the LED module 1, and each first strip-shaped saw tooth 21 has two symmetrical protruded edges, so that the light emitted from the LED module 1 can be refracted and reflected by the two protruded edges of the first strip-shaped saw tooth 21 and then diffused out, thereby increasing the light scattering property and improving the light-emitting uniformity of the light engine. Further, a groove is formed between every two adjacent first strip-shaped sawteeth 21, the two ends of the substrate 11 are clamped in the groove respectively, the stability of the substrate 11 clamped in the groove is further improved, the end of the substrate 11 can be adhered to the contact surface of the substrate 11 and the groove in an adhering mode, the LED module 1 is effectively fixed in the inner cover 2 through the arrangement, a fixing piece does not need to be additionally arranged, and the process cost is saved.

Optionally, the outer surface of the inner cover 2 is provided with a plurality of second strip-shaped sawteeth 22, the plurality of second strip-shaped sawteeth 22 are sequentially and tightly distributed in the circumferential direction, one end of the positioning column 3 is fixed on one second strip-shaped sawtooth 22 or between two adjacent second strip-shaped sawteeth 22, and the other end of the positioning column 3 is fixed on the inner surface of the diffusion cover 4. Specifically, as shown in fig. 1 and fig. 2, each second bar-shaped saw tooth 22 is protruded along the direction of the diffusion cover 4, and each second bar-shaped saw tooth 22 has two symmetrical protruded edges, so that the light emitted from the LED module 1 is refracted and reflected by the two protruded edges of the first bar-shaped saw tooth 21 and then refracted and reflected by the protruded edges of the second bar-shaped saw tooth 22, and then is diffused, thereby further increasing the light scattering property and improving the light-emitting uniformity of the light engine. Optionally, a groove is formed between every two adjacent second strip-shaped sawteeth 22, one end of the positioning column 3 may be fixed on a protrusion of one second strip-shaped sawtooth 22, or may be fixed in the groove between two adjacent second strip-shaped sawteeth 22, in this embodiment, one end of the positioning column 3 is fixed on the protrusion of one second strip-shaped sawtooth 22, and the other end thereof may be fixed on the inner surface of the diffusion cover 4 by way of adhesion or abutment.

Preferably, the positioning column 3 is made of a transparent material and does not block light emitted by the LED module 1; furthermore, the positioning pillars 3 are provided in plurality and the positioning pillars 3 are evenly distributed along the circumferential direction of the outer surface of the inner cover 2. As shown in fig. 1 and 2, in the present embodiment, four positioning pillars 3 are provided, and the four positioning pillars 3 are uniformly distributed along the circumferential direction of the outer surface of the inner cover 2, so that the inner cover 2 is uniformly stressed in the circumferential direction, which is more helpful for stabilizing the light engine.

Specifically, as shown in fig. 2, in the actual use process, the inner cover 2 and the positioning post 3 may be formed by integrally co-extruding plastic or silica gel materials, or the inner cover 2 and the positioning post 3 may be separately processed and fixed together through a later stage; the diffusion cover 4 can adopt an annular cover body integrally extruded by plastic or silica gel, the inner cover 2 and the positioning column 3 are assembled in the diffusion cover 4 in the later stage, the LED module 1 is assembled and fixed in the inner cover 2, and finally, the axial two ends of the inner cover 2 and the diffusion cover 4 are sealed. Optionally, in order to further reduce the processing and assembling steps, the inner cover 2, the positioning column 3 and the diffusion cover 4 can be formed by co-extrusion at the same time, the LED module 1 is assembled and fixed in the inner cover 2 at the later stage, and finally the axial two ends of the inner cover 2 and the diffusion cover 4 are sealed. The adoption of the integrated extrusion process reduces the processing difficulty and increases the sealing property of the annular cover body.

According to the light engine and the LED lamp provided by the invention, the LED module 1 is fixed in the inner cover 2, and the inner cover 2 is fixed on the diffusion cover 4 through the positioning column 3, so that the problem that the light engine is influenced to uniformly emit light because the LED module 1 is easy to deflect to one side of the inner cover 2 and/or the diffusion cover 4 due to the influence of self gravity in the existing light engine because of no positioning is solved; further set up bar sawtooth on inner cover 2 surface and increase light scattering nature to effectively improve the light-emitting uniformity degree of light engine and LED lamp.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims

1. The light engine is characterized by comprising an LED module (1), an inner cover (2), a positioning column (3) and a diffusion cover (4) which are sequentially arranged from inside to outside, wherein the LED module (1) is arranged at the center of the inner cover (2), the LED module (1) comprises a substrate (11) and LED lamp beads (12), the LED lamp beads (12) are arranged on the substrate (11), the two ends of the substrate (11) are fixed with the inner cover (2), the inner cover (2) is fixed with the diffusion cover (4) through the positioning column (3), the inner cover (2) and the diffusion cover (4) are coaxially arranged, the axial length of the inner cover (2) is equal to that of the diffusion cover (4), the inner cover (2) is of an annular structure, a plurality of first strip-shaped sawteeth (21) are arranged on the inner surface of the inner cover (2), and the first strip-shaped sawteeth (21) are sequentially and closely distributed in the circumferential direction, the two end parts of the base plate (11) are clamped between the two adjacent first strip-shaped sawteeth (21).

2. A light engine as recited in claim 1, wherein the LED light beads (12) are packaged in CSP.

3. A light engine as claimed in claim 1, characterized in that the substrates (11) are provided in two, and the two substrates (11) are attached to the side where the LED lamp beads (12) are not mounted.

4. A light engine as claimed in claim 1, characterized in that the outer surface of the inner cover (2) is provided with a plurality of second strip-shaped saw teeth (22), the plurality of second strip-shaped saw teeth (22) are closely distributed circumferentially in sequence, one end of the positioning column (3) is fixed on one second strip-shaped saw tooth (22) or between two adjacent second strip-shaped saw teeth (22), and the other end of the positioning column (3) is fixed on the inner surface of the diffusion cover (4).

5. A light engine as claimed in claim 1, characterized in that the positioning posts (3) are provided in plurality and the positioning posts (3) are evenly distributed circumferentially along the outer surface of the inner cover (2).

6. A light engine as claimed in claim 1, characterized in that the positioning posts (3) are of transparent material.

7. An LED lamp comprising the light engine of any of claims 1-6.