CN105402656B - LED spotlight structure - Google Patents

Abstract

the invention relates to a novel L ED spot lamp structure, which comprises a lamp holder body, a light source plate, an L ED light source arranged on the light source plate and an optical assembly arranged at the top of the lamp holder body, wherein the light source plate is arranged at the top of the lamp holder body, the optical assembly is covered above the light source plate and comprises a first lens and a second lens, the first lens comprises a light-gathering part and a refraction part, the light-gathering part is arranged corresponding to the central axis of the L ED light source so as to gather light rays emitted by the L ED light source and close to the central axis, the refraction part is arranged at the periphery of the light-gathering part and is used for refracting the light rays emitted by the L ED light source and deviating from the central axis, the second lens is arranged at the periphery of the refraction part and is arranged corresponding to the refraction part, and is used for refracting the light rays emitted from the refraction part towards the direction deviating to the lamp holder body.

Description

LED spotlight structure

technical field

The invention relates to an LED lighting fixture, in particular to an LED spotlight structure.

Background technique

LED light sources have the advantages of high luminous efficiency, low heat generation, power saving and long life, so their applications are becoming more and more extensive. LED lamps will gradually replace traditional lighting fixtures such as incandescent lamps and halogen lamps. In the existing LED spotlights, a lens is usually arranged directly above the LED light source to converge the light. In order to support the lens, a lamp cup is also arranged around the lens. However, the lamp cup usually uses a light-shielding material, which makes the LED spotlight can only emit light at a small forward angle, and cannot emit light toward the lamp head.

Contents of the invention

In view of this, it is necessary to provide an LED spotlight structure capable of realizing large-angle light emission.

An LED spotlight structure, comprising a lamp head body, a light source board, an LED light source arranged on the light source board, and an optical assembly arranged on the top of the lamp head body, the light source board is arranged on the top of the lamp head body, and the optical assembly cover is arranged on Above the light source board, the optical assembly includes a first lens and a second lens, the first lens includes a light-condensing portion and a refracting portion, and the light-condensing portion is arranged corresponding to the central axis of the LED light source so as to converge the For light rays near the central axis, the refracting part is arranged on the periphery of the light-collecting part. The refraction part is provided, and the second lens is used for refracting the light emitted from the refraction part towards the direction of the lamp head body.

Compared with the prior art, the LED spotlight structure passes through an optical assembly, and the optical assembly includes a first lens and a second lens. The first lens has a light-gathering part, so that the light emitted by the LED light source is converged and irradiated toward the top, so as to meet the lighting requirements of the top. At the same time, the second lens refracts part of the light emitted by the LED toward the direction of the lamp head, so that the side of the second lens and the outer periphery of the lamp head emit light, so that the new LED spotlight structure has a large-angle light emission effect. advantage.

Description of drawings

Fig. 1 is a cross-sectional view of the LED spotlight structure according to the first embodiment of the present invention.

Detailed ways

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

Please refer to FIG. 1 for the LED spotlight structure 100 of the first embodiment of the present invention.

Please refer to Figure 1. The LED spotlight structure 100 includes a lamp head body 10 , a light source board 20 , an LED light source 21 arranged on the light source board 20 , and an optical assembly arranged on the top of the lamp head body 10 . The light source board 20 is arranged on the top of the lamp body 10 , and the optical assembly is covered above the light source board 20 . Therefore, the light 22 emitted by the LED light source 21 forms a desired optical effect under the action of the optical component.

The optical component includes a first lens 30 and a second lens 40 . The first lens 30 includes a light collecting portion 31 and a refracting portion 32 . The light collecting part 31 is arranged corresponding to the central axis of the LED light source 21 so as to gather the light 22 emitted by the LED light source 21 near the central axis. If there are multiple LED light sources 21 , the central axis is an axis passing through the geometric center of the LED light sources 21 and perpendicular to the light source board 20 . Generally speaking, the light collecting part 31 should be located directly above the LED light source 21 or at a slightly deviated position. The refraction part 32 is disposed around the light collecting part 31 , and the refraction part 32 is used for refracting the light 22 emitted by the LED light source 21 and deviated from the center axis. The so-called periphery: in the case of the converging portion 31 being a circular convex lens, the refracting portion 32 is an annular structure integrally arranged around the concentrating portion 31; if the concentrating portion 31 is a strip-shaped convex lens, the refracting portion 32 are two strip structures arranged on both sides of the light concentrating part 31 . The second lens 40 is disposed on the periphery of the refraction portion 32 and is disposed corresponding to the refraction portion 32 . The second lens 40 is used for refracting the light 22 emitted from the refraction portion 32 toward the lamp head body 10 . In this way, the first lens 30 has a light concentrating portion 31 , so that the light 22 emitted by the LED light source 21 is converged and irradiated towards the top, so as to meet the requirement of top lighting. At the same time, the second lens 40 refracts part of the light 22 emitted by the LED toward the direction of the lamp head body 10 to expand the light emitting angle, so that the whole light emits light at a large angle.

Preferably, the first lens 30 is a rotating body structure, the light concentrating part 31 is a convex lens structure, and the refracting part 32 is an annular structure integrally arranged around the light concentrating part 31 . The height of the refraction portion 32 is greater than that of the light concentrating portion 31 such that the refraction portion 32 and the light concentrating portion 31 combine to form an incident groove 33 , and the incident groove 33 is disposed facing the LED light source 21 . The LED light source 21 is located in the incident groove 33 , so that most of the light 22 emitted by the LED light source 21 can be irradiated toward the first lens 30 , which greatly improves optical efficiency. Further, the outer wall of the refracting portion 32 is a curved structure protruding toward the second lens 40 . Therefore, the refraction part 32 converges part of the light 22 and irradiates it toward the second lens 40 .

Further, the second lens 40 includes a ring wall 41, which surrounds the first lens 30 and is spaced from the first lens 30 to form a gap, and the outer diameter of the ring wall 41 is in the direction away from the lamp body 10 gradually expanded. Since the outer diameter of the bottom of the ring wall 41 is larger than the outer diameter of the lamp body 10 , the arrangement of the ring wall 41 can refract light toward the lamp body 10 . The outer surface of the ring wall 41 is provided with a cobweb surface. In this way, the light 22 is scattered on the outer surface of the ring wall 41 under the action of the spider web surface, so that the whole lamp has a crystal clear and bright effect.

Referring to FIG. 1 , it further includes a connecting portion 50 disposed between the ring wall 41 and the first lens 30 , and a scattering structure 51 is provided on the connecting portion 50 corresponding to the light 22 emitted from the refracting portion 32 . Preferably, the connecting portion 50 is in an annular structure, the top of the connecting portion 50 is connected to the top of the first lens 30 , and the bottom of the connecting portion 50 is connected to the bottom of the ring wall 41 . The scattering structure 51 is a plurality of stepped structures disposed on the inner surface or the outer surface of the connecting portion 50 . In this way, part of the light 22 passes through the connecting portion 50 and then irradiates toward the second lens 40 . Therefore, the first scattering of the light 22 under the action of the connecting portion 50 forms the second scattering on the outer surface of the second lens 40 . The light 22 is evenly distributed on the ring wall 41 of the second lens 40, which has the advantages of being crystal clear and extremely beautiful.

Please refer to Figure 1. The optical component is a transparent or translucent structure, and the optical component is integrally made of plastic material or glass material. Among them, a transparent structure is preferred, which will make the effect of crystal clear and bright better. Moreover, the optical components are made in one piece, which simplifies the optical structure and optimizes the cost and structure of the whole lamp. Both the optical component and the lamp body 10 are made of plastic material, and the optical component and the lamp body 10 are connected together by ultrasonic welding or buckling.

To sum up, the LED spotlight structure 100 simplifies the optical structure by adopting an integrated and transparent optical component, so that the cost and structure of the whole lamp are optimized. The first lens 30 has a light concentrating portion 31 , so that the light 22 emitted by the LED light source 21 is converged and irradiated toward the top, so as to meet the requirement of top lighting. Meanwhile, the second lens 40 is disposed on the periphery of the refracting portion 32 , and the outer surface of the ring wall 41 is provided with a spider web. The light 22 is evenly distributed on the ring wall 41 of the second lens 40, which has the advantages of being crystal clear and extremely beautiful.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection.

Claims (10)

1. a kind of LED spotlight structure including body, light source board, the LED light source being arranged on light source board, and is arranged in lamp cap The top of the body is arranged in optical module at the top of body, the light source board, which is located above the light source board, It is characterized in that, which includes the first lens and the second lens, which includes light collecting part and refraction part, the optically focused The central axes that portion corresponds to the LED light source are arranged to converge the light close to wherein near axis that the LED light source issues, The periphery of the light collecting part is arranged in the refraction part, which is used to reflect its central axes of deviation that the LED light source issues attached Close light, second lens setting is in refraction part periphery and corresponds to refraction part setting, which is used for towards deviation The direction of the body reflects the light issued from the refraction part.

2. LED spotlight structure according to claim 1, which is characterized in that first lens are rotation body structure, the optically focused Portion is convex lens structures, which is the ring structure around light collecting part setting, and the height of the refraction part is greater than the optically focused The height in portion makes the refraction part combine to form an incident groove with the light collecting part, LED light source described in the incidence groove face Setting.

3. LED spotlight structure according to claim 2, which is characterized in that the lateral wall of the refraction part be towards this second The globoidal structure of lens protrusion.

4. LED spotlight structure according to claim 1, which is characterized in that second lens include ring wall, which surround First lens setting simultaneously forms gap with first lens separation, the outer diameter of the ring wall on the direction far from the body by Flaring is big.

5. LED spotlight structure according to claim 4, which is characterized in that further include interconnecting piece, which is arranged at this Between ring wall and first lens, the light that refraction part injection is corresponded on the interconnecting piece is provided with diffusing structure.

6. LED spotlight structure according to claim 5, which is characterized in that the interconnecting piece is ring structure, the interconnecting piece Top connects the top of first lens, and the bottom of the interconnecting piece connects the bottom of the ring wall.

7. LED spotlight structure according to claim 5, which is characterized in that the diffusing structure is that table is arranged in interconnecting piece Multiple step structures on face or outer surface.

8. LED spotlight structure according to claim 1, which is characterized in that the optical module is transparent or semitransparent structure, The optical module is made into integration by plastic material or glass material.

9. LED spotlight structure according to claim 8, which is characterized in that the optical module and the body are by plastics Material is made, and the optical module and the body pass through together with ultrasonic bonding connection.

10. LED spotlight structure according to claim 4, which is characterized in that the outer surface of the ring wall is equipped with spider web face.