CN212869468U

CN212869468U - Reverse projection lamp

Info

Publication number: CN212869468U
Application number: CN202021294275.8U
Authority: CN
Inventors: 梁仕豪
Original assignee: Sier Optoelectronic Technology Guangdong Co ltd
Current assignee: Sier Optoelectronic Technology Guangdong Co ltd
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2021-04-02
Anticipated expiration: 2030-07-03

Abstract

The utility model discloses a reverse formula projection lamp, include: the COB lamp bead is used for generating light; the power module is electrically connected with the COB lamp bead and used for providing current to excite the COB lamp bead to emit light; the light reflecting cup is arranged opposite to the COB lamp beads, the light reflecting plate is provided with an arc-shaped surface, and light generated by the COB lamp beads is emitted to the arc-shaped surface and reflects the light; the toughened glass surface cover is pasted with a PET anti-glare film, the toughened glass surface cover and the light reflecting cup are oppositely arranged, so that the COB lamp beads are positioned between the light reflecting cup and the toughened glass surface cover, and light reflected by the arc-shaped surface of the light reflecting cup is projected out through the toughened glass surface cover to form a circular light spot; the shell is used for accommodating the COB lamp bead, the power module and the reflection cup and covering the toughened glass surface. The utility model discloses an unconventional design makes glare index UGR limit value be less than 16, is superior to the industry standard.

Description

Reverse projection lamp

Technical Field

The utility model relates to a projecting lamp, concretely relates to reverse formula projection projecting lamp.

Background

In order to solve the problem, the conventional method adopts the steps of additionally adding grids to reduce glare or adding a rhombus film, a light-intercepting cover and the like to remove scattered direct light to reduce the glare index, but the effect is not ideal, the current domestic project lamp has high glare index, and non-standard products are randomly installed; causing environmental light pollution to bring various hazards such as driving, eye damage and the like to people.

SUMMERY OF THE UTILITY MODEL

In view of the above, in order to solve the above technical problem, the present invention aims to provide a reverse projection projector with a glare index UGR limit lower than 16 and better than the industry standard.

The adopted technical scheme is as follows:

a reverse projection projector comprising:

the COB lamp bead is used for generating light;

the power module is electrically connected with the COB lamp bead and used for providing current to excite the COB lamp bead to emit light;

the light reflecting cup is arranged opposite to the COB lamp beads, the light reflecting plate is provided with an arc-shaped surface, and light generated by the COB lamp beads is emitted to the arc-shaped surface and reflects the light;

the toughened glass surface cover is pasted with a PET anti-glare film, the toughened glass surface cover and the light reflecting cup are oppositely arranged, so that the COB lamp beads are positioned between the light reflecting cup and the toughened glass surface cover, and light reflected by the arc-shaped surface of the light reflecting cup is projected out through the toughened glass surface cover to form a circular light spot;

the shell is used for accommodating the COB lamp bead, the power module and the reflection cup and covering the toughened glass surface.

Further, the reverse projection projector further comprises:

the COB lamp bead is fixed on the lamp bead heat transfer piece and used for transferring heat generated by the COB lamp bead out;

the heat conducting piece is fixed on the reflecting cup and used for conducting heat generated by the reflecting cup;

and the heat conduction copper pipe is a red copper pipe, one end of the heat conduction copper pipe is fixed on the lamp bead heat transfer piece, and the other end of the heat conduction copper pipe is fixed on the heat conduction piece and used for guiding out the heat of the lamp bead heat transfer piece and the heat conduction piece.

Further, the shell is a die-cast aluminum radiator, and a rear shell connected with the shell is a radiating rear shell.

Further, a high heat conducting plate is fixed on one side of the reflection cup, which is opposite to the heat conducting piece.

Furthermore, a U-shaped support is installed on the die-casting aluminum radiator through an angle adjuster, and the angle between the U-shaped support and the die-casting aluminum radiator can be adjusted through the angle adjuster.

Furthermore, a waterproof silica gel ring is fixed on the heat dissipation rear shell, and an isolation power panel is arranged between the heat dissipation rear shell and the power module.

Furthermore, a power line of the power module extends out of the heat dissipation rear shell, and the power line on the heat dissipation rear shell is fixed by a wire waterproof sealing head.

Further, the heat dissipation rear shell is fixed on the die-casting aluminum radiator through screws.

The beneficial effects of the utility model reside in that:

the utility model discloses a brand-new grading theory is superior to the design of the traditional positive luminous grading, through the direction that changes its light emitting area for the light that drops into in the reflection of light cup is softer through the grading curve reflection, pastes PET anti-dazzle membrane on plus toughened glass again, and unconventional design makes glare index UGR limit value be less than 16, is superior to the industry standard, therefore throws out light and becomes softer, has effectively reduced and has dazzled the index.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a perspective view of a reverse projection projector;

FIG. 2 is an exploded view of a reverse projection projector;

fig. 3 is a cross-sectional view of a reverse projection projector.

Fig. 4 is a schematic diagram of a reverse projection projector for emitting light to form a circular light spot.

In the figure, 1-COB lamp bead, 2-power module, 3-reflector cup, 4-toughened glass cover, 5-lamp bead heat transfer element, 6-heat conduction copper pipe, 7-heat conduction element, 8-high heat conduction plate, 9-die-casting aluminum radiator, 10-isolation power supply board, 11-waterproof silica gel ring, 12-heat dissipation back shell, 13-bracket, 14-angle regulator, 15-waterproof vent valve, 16-wire waterproof sealing head, 17-power line and 18-screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only preferred embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 4, a reverse projection projector includes:

the COB lamp bead 1 is used for generating light;

the power module 2 is electrically connected with the COB lamp bead 1 and used for providing current to excite the COB lamp bead 1 to emit light;

the light reflecting cup 3 is arranged opposite to the COB lamp bead 1, the light reflecting plate is provided with an arc-shaped surface, and light generated by the COB lamp bead 1 is emitted to the arc-shaped surface and reflects the light;

the toughened glass surface cover 4 is pasted with a PET anti-glare film, the toughened glass surface cover 4 is arranged opposite to the light reflecting cup 3, the COB lamp bead 1 is positioned between the light reflecting cup 3 and the toughened glass surface cover 4, and light reflected by the arc surface of the light reflecting cup 3 is projected out through the toughened glass surface cover 4 to form a circular light spot;

the casing holds COB lamp pearl 1, power module 2 and anti-light cup 3 to cover with toughened glass face lid 4.

The working principle of the reverse projection projector is as follows: current excitation COB lamp pearl 1 that produces through power module 2 is luminous, and light throws in 3 shape anti-throws in the direction of shining of reflection of light cup, through toughened glass face lid 4, finally forms circular facula.

This reverse formula projection lamp has embodied brand-new grading theory, is superior to the luminous grading design in the front of tradition, through the direction that changes its light emitting area for the light that drops into in reflection of light cup 3 passes through the grading curve reflection more softly, and add the PET anti-dazzle membrane of pasting on the toughened glass again, unconventional design makes glare index UGR limit value be less than 16, is superior to the industry standard, therefore the light that throws out becomes more softly, has effectively reduced and has dazzled the index.

As a further preferred embodiment, the reverse projection projector further comprises:

the COB lamp bead heat transfer part 5 is used for transferring heat generated by the COB lamp bead 1 out, and the COB lamp bead 1 is fixed on the COB lamp bead heat transfer part 5;

a heat conducting member 7 fixed to the reflector cup 3 for conducting heat generated by the reflector cup 3;

one end of the heat conduction copper pipe 6 is fixed on the lamp bead heat transfer member 5, and the other end of the heat conduction copper pipe is fixed on the heat conduction member 7, and is used for guiding out the heat of the lamp bead heat transfer member 5 and the heat conduction member 7.

The shell is a die-cast aluminum radiator 9, and the rear shell connected with the shell is a radiating rear shell 12.

A high thermal conductivity plate 8 is fixed on the reflector cup 3 on the side opposite to the thermal conductivity member 7.

Like this, this reverse formula projection lamp adopts brand-new heat conduction heat radiation structure, and in power module 2 (being suitable for the power of COB light pearl) and the COB light pearl, being transformed into the light energy with 40% with the electric energy and throwing away with the radiation form, 60% heat need be transferred to the heat dissipation shell with heat conduction mode simultaneously, go out with the heat radiation form scattering equally. The reverse projection projector utilizes the advantage of 380W/MK heat conductivity coefficient of the red copper tube, and effectively reduces the temperature of a welding spot to be controlled not to exceed 85 ℃ under the condition that a chip thermal center works for two hours at the room temperature of 25 ℃. Through the design of the effective heat transfer structure, the 1000-hour light attenuation of a lamp (COB light bead) is ensured to be 1 percent of that of 0,3000 hours, 3 percent of that of 10000 hours and not more than 30 percent of that of 5 ten thousand hours, and the requirement of the American energy star LM-80 is basically met.

Moreover, from the optimal design on the light distribution and heat dissipation heat transfer structure, the cost is effectively saved from the lamp source, the problem that the lamp is additionally provided with a light-cutting cover to remove dazzling in the later period is reduced, and the benefit of the whole lamp (namely the reverse projection projector) is improved.

In a more preferred embodiment, a U-shaped bracket 13 is mounted on the die-cast aluminum heat sink 9 through an angle adjuster 14, and the angle between the U-shaped bracket 13 and the die-cast aluminum heat sink 9 is adjustable through the angle adjuster 14. Thus, the projection angle can be conveniently adjusted through the angle adjuster.

In a further preferred embodiment, a waterproof silicone ring 11 is fixed on the heat dissipation rear shell 12, and an isolation power panel 10 is arranged between the heat dissipation rear shell and the power module 2. Thus, the waterproof property of the reverse projection projector can be increased and the power module 2 can be protected.

As a further preferred embodiment, the power cord 17 of the power module 2 extends from the heat dissipation rear case 12, and the power cord 17 on the heat dissipation rear case 12 is fixed with a waterproof wire sealing head 16. Thus, the water resistance of the power cord 17 can be increased, and moisture can be prevented from entering from the power cord 17.

In a more preferred embodiment, the heat sink back case 12 is fixed to the die-cast aluminum heat sink 9 by screws 18. Therefore, the reverse projection projector is convenient to mount and dismount and maintain.

The above detailed description is only for the purpose of illustrating the practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the technical spirit of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a reverse projection projecting lamp which characterized in that includes:

the COB lamp bead is used for generating light;

2. A retro-projecting projector according to claim 1, characterized in that it further comprises:

3. A retro-reflective projection projector as claimed in claim 2 wherein the housing is a die cast aluminum heat sink and the rear housing to which the housing is attached is a heat sink rear housing.

4. A retro-reflective projector as set forth in claim 3 wherein a high thermal conductivity plate is secured to the reflector cup on a side thereof opposite the thermal conductor member.

5. The reverse type projection projector as claimed in claim 4, wherein the die-cast aluminum heat sink is mounted with a U-shaped bracket by an angle adjuster, and an angle between the U-shaped bracket and the die-cast aluminum heat sink is adjustable by the angle adjuster.

6. The reverse projection projector as claimed in claim 5, wherein the heat dissipation rear housing is fixed with a waterproof silicone ring, and an isolation power board is disposed between the heat dissipation rear housing and the power module.

7. A backward projection projector according to claim 6, characterized in that the power line of the power module extends from the heat-dissipating rear shell, and the power line on the heat-dissipating rear shell is fixed with a waterproof sealing head of wire.

8. A retro-reflective projection projector as claimed in claim 7 wherein the rear heat sink housing is secured to the die cast aluminum heat sink by screws.