CN211203936U

CN211203936U - L ED lamp bead lens hood

Info

Publication number: CN211203936U
Application number: CN202020031386.3U
Authority: CN
Inventors: 王刚
Original assignee: Chongqing Yuzhaoyao Electronic Technology Co ltd
Current assignee: Chongqing Yuzhaoyao Electronic Technology Co ltd
Priority date: 2020-01-08
Filing date: 2020-01-08
Publication date: 2020-08-07
Anticipated expiration: 2030-01-08

Abstract

The utility model relates to a lighting device field specifically discloses an L ED lamp pearl lens hood, the on-line screen storage device comprises a base, be equipped with the light trap on the base, the edge of light trap encircles and is provided with the shading ring, the upper surface at the base is connected to the shading ring, and the shading ring extends towards the direction of keeping away from the base, wherein, the diameter of light trap reduces gradually along the base towards the direction at shading ring top, and the inner wall of light trap and the contained angle of vertical direction mark are α, α's scope is 2 ~ 6 degrees, L ED lamp pearl is enclosed in the light trap of lens hood, and L ED light source continuously takes place the reflection through the pore wall that the light trap reduces gradually, jets out after converging at last, prevents that the parasitic light from shining on lens to and between the adjacent L ED light source mutual cluster light, thereby overcome L ED lamp pearl and have astigmatic, the parasitic light produces bad circumstances such as glistening.

Description

L ED lamp bead lens hood

Technical Field

The utility model relates to a lighting device field, concretely relates to L ED lamp pearl lens hood.

Background

L ED (light emitting diode) is known as a fourth generation light source, and has the advantages of long service life, high luminous efficiency and no radiation, L ED has a theoretical service life of more than 10 ten thousand hours, and the luminous efficiency is as high as 90%, while the energy consumption of the same luminous flux is only 8% of that of an incandescent lamp and 30% of that of a halogen lamp, and has the advantages of obvious green and low carbon, and L ED is widely applied to the field of illumination worldwide.

The existing automobile headlamp generally has the problems of high energy consumption, weak illumination, large heat productivity and short service life (such as easy burning-off and easy breaking of filaments) and has certain potential safety hazard because the light efficiency of the halogen lamp light source is lower than that of L ED, the heat productivity is large, the service life is short, and the light utilization rate is low by adopting the reflection mode of the reflector.

However, light beams generated by L ED lamp beads can generate redundant stray light or light leakage phenomenon in the process of irradiating the lens, so that the light refracted out of the lens contains stray light, the light beams are fuzzy, the poor light conditions such as virtual light and the like can be generated due to light leakage, and the ideal illumination effect cannot be generated.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at overcoming the defect among the prior art, provide an L ED lamp pearl lens hood.

In order to solve the technical problem, the utility model discloses a following technical scheme:

an L ED lamp bead light shield comprises a base, wherein a light hole is formed in the base, a light shielding ring is arranged on the edge of the light hole in a surrounding mode and connected to the upper surface of the base, and the light shielding ring extends in a direction far away from the base, wherein the diameter of the light hole is gradually reduced along the direction from the base to the top of the light shielding ring, the included angle between the inner wall of the light hole and the vertical direction is recorded as α, and the α range is 2-6 degrees.

Further, the range of α is 3 ~ 5 °.

Further, the minimum diameter of the light hole is 5.5-6.5 mm.

Further, the height of light trap is 3 ~ 5 mm.

Furthermore, one side of the base, which is far away from the shading ring, is provided with a plurality of inserting and buckling feet.

Furthermore, the number of the inserting and buckling feet is four, and the four inserting and buckling feet are distributed on four corners of the base.

Furthermore, the bottom of the inserting and buckling foot is provided with an inserting and buckling head, and the direction of the two inserting and buckling heads in the length direction of the base is opposite.

Furthermore, the side, away from the eye-splice head, of the eye-splice instep is provided with an inclined plane for rapid eye-splice, and the bottom of the inclined plane inclines towards the eye-splice head.

Furthermore, one side of the base, which is far away from the shading ring, is provided with at least one positioning column, and the central axis of the positioning column is parallel to the central axis of the light hole.

The beneficial effects of the utility model are that the utility model discloses a L ED lamp pearl lens hood, it is through installing the lens hood on the circuit board, make L ED lamp pearl enclose in the light trap of lens hood, L ED light source passes through the pore wall that the light trap reduces gradually and continuously takes place the reflection, jet out after converging at last, prevent that the parasitic light from shining on the lens, and between the adjacent L ED light source cross light each other, thereby it has the astigmatism to have overcome L ED lamp pearl, the parasitic light produces the bad condition of glistening isocandela type, contained angle α's angle scope can not make the difference of the maximum diameter department and the minimum diameter department of light trap too big, thereby the light that avoids the ED L lamp pearl to send jets out from the minimum light trap of size, cause the illumination scope undersize, influence the illumination effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of an L ED lamp bead shade of the present invention;

FIG. 2 is a schematic cross-sectional view of a light shield;

FIG. 3 is a schematic view of the light shield mounted on the circuit board;

FIG. 4 is a schematic diagram of a circuit board;

fig. 5 is a schematic structural diagram of the back side of the circuit board.

Reference numerals:

the LED lamp comprises a circuit board 1, a lamp bead 11-L ED, a buckling position 12, a positioning hole 13, a base 2, a light transmission hole 3, a shading ring 4, a buckling pin 5, a buckling plug 51, an inclined plane 52 and a positioning column 6.

Detailed Description

The present invention will be described in further detail with reference to examples.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, for the utility model discloses an L ED lamp pearl lens hood, specifically, this lens hood includes base 2, is equipped with light trap 3 on the base 2, and the edge of light trap 3 surrounds and is provided with shading ring 4, and shading ring 4 connects the upper surface at base 2, and shading ring 4 extends towards the direction of keeping away from base 2, and wherein, the diameter of light trap 3 reduces gradually towards the direction at shading ring 4 top along base 2, and the inner wall of light trap 3 and the contained angle of vertical direction mark for the scope of α be 2 ~ 6.

After the circular telegram, every L ED lamp pearl 11 on circuit board 1 all can send out light to all directions it, inevitable can produce the parasitic light, and L ED lamp pearl 11 light each other also can produce crosstalk interference and influence, consequently, through installing base 2 on circuit board 1, make single L ED lamp pearl 11 enclosed in the light trap 3 of lens hood, L ED light source can only follow light trap 3 and jet out, and, L ED lamp pearl 11's central axis coincides with the central axis of light trap 3, because the diameter of light trap 3 reduces along the direction of keeping away from L ED lamp pearl 11 gradually, light can continuously take place the reflection at the light trap 3 pore wall that constantly reduces, jet out after finally converging.

Further, the inner wall of light trap 3 and the contained angle α scope of vertical direction are 2 ~ 6, and the inner wall of taper light trap 3 can play the reflection to the light that L ED lamp pearl 11 sent, and is constantly convergent, jets out from the top of light trap 3 at last to, contained angle α's angle scope can not make the difference of the maximum diameter department and the minimum diameter department of light trap 3 too big, thereby avoid the light that L ED lamp pearl 11 sent to jet out from the minimum light trap 3 of size, cause the illumination scope undersize, influence the illumination effect.

This lens hood adopts the preparation of adiactinic material, and simple structure can prevent that miscellaneous light from shining on the lens to and cross light each other between the adjacent L ED light source, thereby overcome L ED lamp pearl 11 and have the astigmatic, miscellaneous light produces the bad condition of light type such as false light, simultaneously, can promote the light-emitting luminance and the degree of consistency of L ED light source, thereby improved the illumination utilization ratio, reduced light pollution.

Specifically, α is in the range of 3 ° to 5 °, in this embodiment, the included angle α is preferably 4.2 °, and at this angle, the light emitted from the light transmission hole 3 of the same L ED lamp bead 11 is most effective.

Specifically, the minimum diameter of light trap 3 is 5.5 ~ 6.5mm, the height of light trap 3 is 3 ~ 5mm, the design of the minimum department of diameter and height of light trap 3 for light trap 3 can carry out good reflection to the light that L ED lamp pearl 11 sent, makes light can evenly converge and jets out, thereby acquires better illuminating effect.

Furtherly, in order to facilitate installing this base 2 on circuit board 1, the one side that base 2 deviates from light-shielding ring 4 is equipped with a plurality of eye-splice feet 5, seted up on circuit board 1 a plurality ofly with eye-splice foot 5 complex detain position 12, through eye-splice foot 5 with detain the buckle cooperation of position 12, can install the lens hood on circuit board 1 firmly to carry out effectual sheltering from to L ED lamp pearl 11, the rapid Assembly of also being convenient for simultaneously.

In the present embodiment, in order to reduce the probability of tripping between the latching legs 5 and the fastening positions 12, the number of the latching legs 5 is four, and the four latching legs 5 are distributed at four corners of the base 2.

Further, the bottom of the insert pin 5 is provided with an insert head 51, and two insert heads 51 in the length direction of the base 2 are oppositely oriented. Wherein, the side of the insert buckle foot 5 departing from the insert buckle head 51 is provided with an inclined plane 52 for rapid insert buckle, and the bottom of the inclined plane 52 inclines towards the insert buckle head 51. When the distance between two plug-in fastening pins 5 in the length direction of the base 2 is greater than the distance between two fastening positions 12, the assistance of the inclined plane 52 is needed, so that the plug-in fastening pins 5 can be quickly clamped into the fastening positions 12.

In addition, the base 2 deviates from the one side of light-shading ring 4 and is equipped with at least one reference column 6, and the central axis of reference column 6 is parallel with the central axis of light trap 3, seted up the locating hole 13 that corresponds with reference column 6 on the circuit board 1, when installing the lens hood on circuit board 1, aim at locating hole 13 with reference column 6, make the position of lens hood possess the uniqueness to L ED lamp pearl 11 on the circuit board 1 and the accurate cooperation of light trap 3 avoid appearing assembly error.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides an L ED lamp pearl lens hood which characterized in that:

the light-shading device comprises a base, wherein a light hole is formed in the base, a light-shading ring is arranged at the edge of the light hole in a surrounding manner, the light-shading ring is connected to the upper surface of the base, and the light-shading ring extends towards the direction far away from the base;

the diameter of the light transmission hole is gradually reduced along the direction from the base to the top of the shading ring, the included angle between the inner wall of the light transmission hole and the vertical direction is recorded as α, and the range of α is 2-6 degrees.

2. The L ED lamp pearl light shield of claim 1, wherein:

the range of α is 3-5 degrees.

3. The L ED lamp pearl light shield of claim 2, wherein:

the minimum diameter of the light hole is 5.5-6.5 mm.

4. The L ED lamp pearl light shield of claim 2, wherein:

the height of light-transmitting hole is 3 ~ 5 mm.

5. The L ED lamp bead light shield of any one of claims 1-4, wherein:

one side of the base, which deviates from the shading ring, is provided with a plurality of inserting and buckling pins.

6. The L ED lamp pearl light shield of claim 5, wherein:

the quantity of eye-splice foot is four, and four eye-splice feet distribute on four angles of base.

7. The L ED lamp pearl light shield of claim 6, wherein:

the bottom of the inserting and buckling foot is provided with an inserting and buckling head, and the direction of the inserting and buckling heads in the length direction of the base is opposite.

8. The L ED lamp pearl light shield of claim 7, wherein:

the back of the eye-splice foot is provided with an inclined plane for rapid eye-splice on one side of the eye-splice head, and the bottom of the inclined plane inclines towards the direction of the eye-splice head.

9. The L ED lamp bead light shield of any one of claims 1-4, wherein:

the one side that the base deviates from the shading ring is equipped with an at least reference column, the central axis of reference column is parallel with the central axis of light trap.