CN219623889U - Projection lamp - Google Patents

Abstract

The utility model discloses a projection lamp, which belongs to the technical field of household lamp decoration, and comprises a shell, wherein the shell comprises a first part and a second part, the second part is provided with a cavity, and the cavity is internally provided with: the motor, the diffusion sheet is circular, fixedly connect with a drive shaft in the centre of a circle of the diffusion sheet, and the drive shaft is driven by the motor; the light source is arranged at the rear side of the diffusion sheet and is opposite to the eccentric position of the diffusion sheet; the lens is arranged on the front side of the diffusion sheet, and the lens and the position of the light source are arranged in a right opposite way; a light-transmitting cover; light emitted by the light source is refracted by the diffusion sheet, then refracted by the lens and finally emitted outwards through the light-transmitting cover. The diffuse reflection sheet is adopted by the projection lamp, light rays can be continuously reflected, meanwhile, the diffuse reflection sheet is driven to rotate through the motor, a more complex light path can be formed, and the light rays after diffuse reflection are fully captured through the lens, so that a more full projection effect is formed, and the interestingness is improved.

Description

Projection lamp

Technical Field

The utility model belongs to the technical field of household lamp decoration, and particularly relates to a projection lamp.

Background

The projection lamp is a larger category in the household lamp decoration, is not only suitable for being used as a night lamp for children before sleeping, but also suitable for being used as an atmosphere lamp of a room, and adds fun to the life of people.

The existing projection lamp has a simple structure, comprises a light source, a reflector, a condenser, a lampshade and the like, generates fixed light at the light source to project, and has a simple light path structure and low interestingness.

For this reason, we propose a projection lamp to solve the above-mentioned problems.

Disclosure of Invention

The utility model provides a projection lamp for solving the problem of poor display effect of the projection lamp in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a projection lamp comprising a housing, the housing comprising a first portion and a second portion, the second portion having a cavity within which is mounted:

the motor is fixedly arranged on the rear side wall of the cavity;

the diffusion sheet is circular, a driving shaft is fixedly connected to the center of the diffusion sheet, and the driving shaft is driven by the motor;

the light source is arranged at the rear side of the diffusion sheet and is opposite to the eccentric position of the diffusion sheet, so that the light sources respectively act at different positions of the diffusion sheet in the rotation process of the diffusion sheet;

the lens is arranged on the front side of the diffusion sheet, and the lens and the light source are arranged in a position opposite to each other;

an opening is formed in the side wall of the cavity right in front of the light source, and the light-transmitting cover is embedded in the opening, so that the light-transmitting cover and the lens are arranged right opposite to each other;

light rays emitted by the light source are refracted by the diffusion sheet, then refracted by the lens and finally emitted outwards through the light-transmitting cover.

Preferably, a fixing ring is fixedly connected to the inner wall of the cavity, and the lens is fixedly embedded in the fixing ring.

Preferably, the surface of the diffusion sheet is provided with striated protrusions.

Preferably, the first portion and the second portion are detachably connected.

Preferably, the portable electronic device further comprises a control box, wherein the control box is fixedly connected with the first part, and a plurality of buttons are arranged outside the control box.

Preferably, a music player is arranged in the control box.

In summary, the technical effects and advantages of the present utility model are: the diffuse reflection sheet is adopted by the projection lamp, light rays can be continuously reflected, meanwhile, the diffuse reflection sheet is driven to rotate through the motor, a more complex light path can be formed, and the light rays after diffuse reflection are fully captured through the lens, so that a more full projection effect is formed, and the interestingness is improved.

Drawings

FIG. 1 is a schematic overall structure of a first embodiment of the present utility model;

FIG. 2 is a schematic view showing an internal structure of a second portion of the housing according to the first embodiment of the utility model;

FIG. 3 is a schematic diagram showing the positional relationship among a light source, a diffuse reflection sheet and a lens in accordance with the first embodiment of the present utility model;

FIG. 4 is a schematic side elevational view of FIG. 3;

fig. 5 is a schematic structural diagram of a second embodiment of the present utility model.

In the figure: 1. a housing; 11. a first portion; 12. a second portion; 120. a motor; 121. a diffusion sheet; 1211. a striated protrusion; 122. a light source; 123. a lens; 124. a light-transmitting cover; 2. a control box; 21. a button; 22. a music player.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Example 1

As shown in fig. 1, 2 and 3, a projection lamp includes a housing 1, where the housing 1 includes a first portion 11 and a second portion 12, specifically, the housing 1 may adopt a humanoid structure, such that the first portion 11 is a trunk portion and the second portion 12 is a head portion, further, the housing 1 may be designed as an astronaut model, and has a higher interest, and the second portion 12 has a cavity, in which a cavity is installed:

the motor 120 is fixedly arranged on the rear side wall of the cavity, the motor 120 can be arranged in a fixed column on the inner wall of the cavity through bolts, and the motor 120 is horizontally arranged, so that the axis of an output shaft of the motor 120 is opposite to the front position.

The diffusion sheet 121, the diffusion sheet 121 is circular, the diffusion sheet 121 is made of acrylic material, a driving shaft is fixedly connected to the center of the diffusion sheet 121 and driven by the motor 120, and in order to achieve the diffusion effect of the diffusion sheet 121, the surface of the diffusion sheet 121 is provided with a grain-shaped protrusion 1211, wherein the grain-shaped protrusion 1211 is divided into coarse grains and fine grains, the coarse grains are arranged on the top surface of the diffusion sheet 121, and the fine grains are arranged on the bottom surface of the diffusion sheet 121;

and a light source 122, wherein the light source 122 is arranged at the rear side of the diffusion sheet 121, and the light source 122 is opposite to the eccentric position of the diffusion sheet 121, so that the light source 122 acts on different positions of the diffusion sheet 121 during the rotation of the diffusion sheet 121.

Further, the light source 122 includes an RGB light source for generating a seven-color light source and a TIR lens, and the projection lamp further includes a PCB circuit board for fixing the RGB light source and for dissipating heat, and the RGB light source and the motor 120 can be fixedly locked into one body, and the TIR lens converts the RGB point light source into a parallel light beam to be irradiated onto the diffusion sheet 121 on the front side.

A lens 123, wherein the lens 123 is a plano-convex lens, the lens 123 is disposed on the front side of the diffusion sheet 121, and the lens 123 is disposed opposite to the light source 122;

the light-transmitting cover 124 is provided with an opening on the side wall of the cavity right in front of the light source 122, and the light-transmitting cover 124 is embedded in the opening, so that the light-transmitting cover 124 and the lens 123 are arranged right opposite to each other, and the lens 123 can project the light effect generated after diffuse reflection outwards.

Specifically, the path diagram of the light ray is: the light emitted from the light source 122 is refracted by the diffusion sheet 121, then refracted by the lens 123, and finally emitted out through the light-transmitting cover 124.

Further, when the motor 120 is started, the motor 120 drives the diffusion sheet 121 to rotate continuously, so that different parts of the diffusion sheet 121 correspond to the light source positions, and the light path is further changed, so that a richer light effect is achieved.

The working principle is as follows: when in use, the light source 122 is firstly turned on, so that the light source 122 emits light, the light is refracted by the diffusion sheet 121, then refracted by the lens 123, finally emitted outwards by the light-transmitting cover 124, and in the light propagation process, the motor 120 is turned on, so that the motor 120 drives the diffusion sheet 121 to rotate, the positions of the striation protrusions 1211 are continuously changed, the diffuse reflection angle of the light is changed, the irradiation position of the light is changed, more diversified patterns are formed, and the appreciation effect is improved.

Example two

As shown in fig. 5, compared with the first embodiment, the present embodiment further includes a control box 2, the control box 2 is fixedly connected with the first portion 11, wires for supplying power to the motor 120 and the PCB and transmitting signals are connected between the control box 2 and the housing 1, and a plurality of buttons 21 are provided outside the control box 2.

Specifically, the buttons 21 include a mode key, a motor switch, a rotation speed control key, a power on/off and bluetooth key, a music key, a light source switch, and a mode selection key. The motor switch and the rotation speed control key are used for controlling the motor 120, and the light source switch and the mode selection key are used for controlling the light source 122.

The music player 22 is arranged in the control box 2, and the sound effect of the projection lamp can be realized under the control of the music keys so as to cooperate with projection and improve the overall viewing experience.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (6)

1. Projection lamp comprising a housing (1), said housing (1) comprising a first part (11) and a second part (12), characterized in that said second part (12) has a cavity in which is mounted:

a motor (120), the motor (120) being fixedly mounted on a rear sidewall of the cavity;

the diffusion sheet (121), the diffusion sheet (121) is circular, a driving shaft is fixedly connected to the center of the diffusion sheet (121), and the driving shaft is driven by the motor (120);

the light source (122) is arranged at the rear side of the diffusion sheet (121), the light source (122) is opposite to the eccentric position of the diffusion sheet (121), and the light source (122) acts on different positions of the diffusion sheet (121) respectively in the rotation process of the diffusion sheet (121);

a lens (123), wherein the lens (123) is arranged on the front side of the diffusion sheet (121), and the lens (123) is arranged opposite to the light source (122);

the light-transmitting cover (124) is provided with an opening on the side wall of the cavity right in front of the light source (122), and the light-transmitting cover (124) is embedded in the opening, so that the light-transmitting cover (124) and the lens (123) are arranged right opposite to each other;

the light emitted by the light source (122) is refracted by the diffusion sheet (121), then refracted by the lens (123), and finally emitted outwards through the light-transmitting cover (124).

2. A projection lamp according to claim 1, wherein a fixing ring is fixedly connected to the inner wall of the cavity, and the lens (123) is fixedly embedded in the fixing ring.

3. A projection lamp according to claim 1, characterized in that the surface of the diffusion sheet (121) is provided with striated protrusions (1211).

4. A projection lamp according to claim 1, characterized in that the first part (11) and the second part (12) are detachably connected.

5. A projection lamp according to claim 4, further comprising a control box (2), said control box (2) being fixedly connected to the first part (11), a plurality of buttons (21) being provided on the outside of said control box (2).

6. A projection lamp as claimed in claim 5, characterized in that a music player (22) is provided in the control box (2).