CN216595863U - Outdoor projection lamp - Google Patents

Abstract

The utility model provides an outdoor projection lamp, is including the ray apparatus subassembly, waterproof casing, the transparent plane glass who is used for projecting digital content, the ray apparatus subassembly is fixed in waterproof casing, the light-emitting side of waterproof casing is the protecgulum, be equipped with on the protecgulum and be used for the ray apparatus subassembly throws the opening of light-emitting, transparent plane glass is fixed in the opening part, its characterized in that, transparent plane glass has an slope contained angle with the horizontal plane.

Description

Outdoor projection lamp

Technical Field

The utility model relates to the field of outdoor landscape lamps, in particular to a discharge protection circuit of an anti-flashover lamp.

Background

The DLP projector is widely used, but is mainly used indoors due to the limitations of heat dissipation and water resistance. In recent years, digital projection effects are introduced in the light industry of travel adopting a DMX data protocol for data transmission, a batch of outdoor projection lamps which directly apply optical-mechanical assemblies of DLP projectors as projection units appear, and the outdoor projection lamps belong to the combined design of the optical-mechanical assemblies of the DLP projectors and a new waterproof shell in principle.

The outdoor projection lamp is usually provided with a piece of transparent plane glass which is perpendicular to the optical axis of the light-emitting light path and is used for light transmission and dust prevention. In outdoor practical use, as shown in fig. 1, when emergent light directly shines through the vertical transparent plane glass, part of the light can be directly reflected back to the DLP light source in the optical mechanical component in the original path, so that the internal temperature of the optical mechanical component is increased, and the lamp is easily turned off or the power is reduced in the hot weather, thereby affecting the normal work of the lamp.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects of the prior art and provides an outdoor projection lamp which adopts a simple technical scheme to achieve relatively ideal effects.

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

the utility model provides an outdoor projection lamp, is including the ray apparatus subassembly, waterproof casing, the transparent plane glass who is used for throwing digital content, the ray apparatus subassembly is fixed in the casing, the light-emitting side of waterproof casing is the protecgulum, be equipped with on the protecgulum and be used for the ray apparatus subassembly throws the opening of light-emitting, transparent plane glass is fixed in the opening part, its characterized in that, transparent plane glass has an slope contained angle with the horizontal plane, and 10 is not less than a and is not less than 45.

Further, the housing is rectangular.

Further, the transparent plane glass is rectangular.

Further, the transparent plane glass is circular.

Specifically, still including being located the outside convex bulge of light-emitting direction, bulge center is equipped with the slope opening plane that is used for throwing the light-emitting.

More finely, the convex part is a right-angled trapezoid shaped like an inverted 7.

More carefully, the transparent plane glass is closely fixed on the inclined opening plane.

More meticulous, bulge and protecgulum are as an organic whole die sinking and are formed.

More finely, the projection is mounted on the front cover by a fastener.

Furthermore, the vertical distance L between the projection lens and the transparent plane glass along the emergent direction is more than or equal to 20mm and less than or equal to 150 mm.

Further, the optical-mechanical assembly adopts a DLP technology.

Compared with the conventional technology, the technology of the utility model has the advantages that the quantity of the light rays reflected back to the optical mechanical component is greatly reduced by only changing the inclination angle of the transparent plane glass, so that the problem of shutdown or power reduction caused by overhigh temperature caused by the reflected light rays is solved. Although the technical scheme is simple, the practicability is very strong.

Drawings

The utility model is explained in more detail below with reference to the figures and examples.

Fig. 1 is a simple light emitting diagram of a conventional outdoor projection lamp.

FIG. 2 is a simplified diagram of light extraction according to the present invention.

FIG. 3 is a partially exploded view of the present invention.

Fig. 4 is a schematic cross-sectional view of the vertical distance L between the projection lens and the transparent flat glass according to the present invention.

FIG. 5 is a schematic cross-sectional view of the inclined angle a between the transparent flat glass and the horizontal plane according to the present invention.

Detailed Description

In order to make the technical problems solved, technical solutions adopted, and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention are described in further detail below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; 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 in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 3 and 5, an outdoor projection lamp includes an optical mechanical component 1 for projecting digital content, a waterproof housing 2, and a transparent plane glass 4, the optical mechanical component 1 is fixed in the waterproof housing 2, a front cover 21 is disposed on a light-emitting side of the waterproof housing 2, an opening 31 for the optical mechanical component 1 to project light is disposed on the front cover 21, and the transparent plane glass 4 is fixed at the opening 31; the transparent plane glass 4 and the horizontal plane have an inclined included angle a which is more than or equal to 10 degrees and less than or equal to 45 degrees.

In order to better explain the beneficial effects of the technical scheme, a simple light ray outgoing schematic diagram is adopted to compare and explain the conventional technical scheme and the technical scheme.

In a conventional state, as shown in fig. 1, the light emitted from the optical-mechanical assembly 1 and the transparent plane glass 4 are perpendicular to each other, and when the light emitted from the optical-mechanical assembly 1 enters the transparent plane glass 4, a part of the light is transmitted out, and a part of the light directly returns to the optical-mechanical assembly 2 along the original path. As can be understood by those skilled in the art, precisely, part of the light returning along the original path actually returns to the DLP light source in the optical mechanical assembly 1 directly, so that after a period of time, the internal temperature of the optical mechanical assembly 1 rises, and the optical mechanical assembly is easily turned off or powered down when it is hot, thereby affecting the normal operation of the lamp.

In the present embodiment, as shown in fig. 2, the transparent flat glass 4 is not perpendicular to the horizontal plane, but has an inclined angle a. At this moment, when the light that ray machine subassembly 1 sent incides transparent plane glass 4, some light transmission and play, some light is then according to the reflection of optics principle reflection on the non-main light path direction in addition, and can not enter into ray machine subassembly 1 inside or only have on few reflected light has got into the inside DLP light source of ray machine subassembly 1, and is very little to the influence of temperature.

Therefore, the technical scheme only changes the included angle between the transparent plane glass 4 and the horizontal plane through tiny change, but completely solves the problem that the temperature inside the optical-mechanical assembly 1 is increased due to reflected light.

As a specific embodiment, as shown in fig. 3, the housing 2 is rectangular, and the optical-mechanical assembly 1 is disposed in a cavity of the rectangular housing 2.

As a specific embodiment, the transparent flat glass 4 has a rectangular shape. The rectangular transparent plane glass 4 can be fixed at the opening 31 by dispensing; alternatively, in another embodiment, the transparent flat glass 4 is circular, and the circular transparent flat glass 4 can be fixed at the opening 31 by dispensing.

The transparent flat glass 4 may be inclined at an angle to the horizontal plane in any one of the following two embodiments.

The first implementation mode comprises the following steps: the front cover 21 is provided with a protrusion 3 protruding outward in the light emitting direction, that is, the protrusion 3 and the front cover 21 are integrally formed by opening a mold. The convex part 4 is a right-angled trapezoid shaped like an inverted 7, an inclined opening 31 for projecting light is arranged in the center of the convex part 3, and the transparent plane glass 4 is tightly attached to the plane of the inclined opening 31.

When the transparent flat glass 4 is tightly fixed with the plane of the inclined opening 31 of the convex part 3, the transparent flat glass 4 forms an inclined angle with the horizontal plane.

The second embodiment: a convex part 4 is added, the convex part 4 is in a right-angle trapezoid shape like an inverted 7, and the convex part 4 is installed on the front cover 21 through a fastener. The center of the convex part 3 is provided with an inclined opening 31 for projecting light, and the transparent plane glass 4 is tightly fixed on the plane of the inclined opening 31. When the transparent flat glass 4 is tightly fixed with the plane of the inclined opening 31 of the convex part 3, the transparent flat glass 4 forms an inclined angle with the horizontal plane.

As one embodiment, as shown in FIG. 4, the vertical distance L between the projection lens 11 and the transparent flat glass 4 along the emergent direction is 20mm ≦ L ≦ 150 mm. The advantage of this embodiment is that the distance L is mainly to allow the transparent flat glass 4 to have an inclined space without interfering with the projection lens 11 while not excessively enlarging the volume of the projection 3 of the lamp.

As one embodiment, the optical-mechanical assembly adopts DLP technology, which is an optical-mechanical assembly used in a currently mainstream projector.

In the description herein, it is to be understood that the terms "upper," "lower," "left," "right," and the like are used in an orientation or positional relationship merely for convenience in description and simplicity of operation, and do not indicate or imply that the referenced device or element must have a particular orientation, configuration, and operation in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.

Claims (11)

1. The utility model provides an outdoor projection lamp, is including the ray apparatus subassembly, waterproof casing, the transparent plane glass who is used for throwing digital content, the ray apparatus subassembly is fixed in waterproof casing, the light-emitting side of waterproof casing is the protecgulum, be equipped with on the protecgulum and be used for the ray apparatus subassembly throws the opening of light-emitting, transparent plane glass is fixed in the opening part, its characterized in that, transparent plane glass has an slope contained angle with the horizontal plane, and 10 is not less than a and is not less than 45.

2. An outdoor projection lamp as claimed in claim 1, wherein said housing is rectangular.

3. An outdoor projection lamp as claimed in claim 1, wherein said transparent flat glass is rectangular.

4. An outdoor projection lamp as claimed in claim 1, wherein said transparent flat glass is circular.

5. An outdoor projection lamp according to claim 3 or 4, characterized in that, it further comprises a convex portion protruding outward in the light-emitting direction, and the center of the convex portion is provided with an inclined opening plane for projecting light.

6. An outdoor projection lamp according to claim 5, wherein said projection is in the shape of an inverted 7 right trapezoid.

7. An outdoor projection lamp as set forth in claim 5, wherein said transparent flat glass is snugly fixed to said inclined opening plane.

8. The outdoor projection lamp of claim 5, wherein the protrusion is integrally molded with the front cover.

9. An outdoor projection lamp according to claim 5, wherein said projection is mounted on said front cover by a fastener.

10. An outdoor projection lamp as claimed in claim 1, wherein the vertical distance L between the projection lens and the transparent plane glass along the emergent direction is 20mm ≦ L ≦ 150 mm.

11. An outdoor projection lamp according to claim 1, wherein said optical engine assembly employs DLP technology.

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