CN219105331U

CN219105331U - Light machine shell protection device of projector

Info

Publication number: CN219105331U
Application number: CN202223540636.4U
Authority: CN
Inventors: 陈灵; 王杰; 潘亚婷; 陈饶
Original assignee: Shenzhen Liangzi Photoelectric Technology Co ltd
Current assignee: Shenzhen Liangzi Photoelectric Technology Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-05-30
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses a light machine shell protection device of a projector, which comprises a light machine shell and an optical system, wherein the optical system comprises an LED light source, a condenser, an illumination reflecting mirror and a front phenanthrene mirror which are sequentially arranged according to the light travelling direction; the light source mounting opening is formed in the light machine shell, the LED light source is mounted at the light source mounting opening, the condenser, the illumination reflector and the front phenanthrene mirror are sequentially mounted inside the light machine shell, and the light machine shell protection device comprises a vapor chamber; and the vapor chamber is arranged between the LED light source and the condenser and between the condenser and the front phenanthrene mirror and is attached to the inner wall of the optical machine shell corresponding to the front phenanthrene mirror. The utility model solves the problems that the local temperature is too high due to the fact that light rays are concentrated and irradiated on the inner wall of the plastic optical engine shell, and the plastic optical engine shell is deformed and melted locally.

Description

Light machine shell protection device of projector

Technical Field

The utility model relates to the technical field of projection, in particular to a light machine shell protection device of a projector.

Background

The existing projector mainly comprises an optical machine shell and an optical system, wherein the optical machine shell is made of plastic and is manufactured through injection molding, light rays emitted by an LED light source are concentrated through a collecting lens, a part of light rays can be concentrated and irradiated on the inner wall of the plastic optical machine shell to form local high-energy spots, and the local temperature of the optical machine shell is extremely poor due to extremely poor heat conducting performance of the plastic optical machine shell, so that the local temperature of the optical machine shell is extremely high, the local deformation and melting of the plastic optical machine shell are caused at normal temperature and the service life of the plastic optical machine shell is influenced, and the service life of the projector is further influenced.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, and provides a light machine shell protection device of a projector, which aims to solve the problems that the local temperature is too high and the local deformation and melting of the plastic light machine shell are caused by the fact that the existing light rays are partially gathered and irradiated on the inner wall of the plastic light machine shell.

In order to achieve the above object, the present utility model provides a light machine housing protection device of a projector, where the projector includes a light machine housing and an optical system, and the optical system includes an LED light source, a condenser, an illumination mirror, and a front phenanthrene mirror sequentially arranged in a light traveling direction; the light source mounting opening is formed in the light machine shell, the LED light source is mounted at the light source mounting opening, the condenser, the illumination reflector and the front phenanthrene mirror are sequentially mounted inside the light machine shell, and the light machine shell protection device comprises a vapor chamber; and the vapor chamber is arranged between the LED light source and the condenser and between the condenser and the front phenanthrene mirror and is attached to the inner wall of the optical machine shell corresponding to the front phenanthrene mirror.

Preferably, the vapor chamber is an iron plate, an aluminum plate or a graphite sheet.

Preferably, the thickness of the soaking plate is 0.3mm-1.2mm.

Preferably, a soaking plate between the condensing lens and the front phenanthrene mirror: the condensing lens comprises an inner blocking part, two outer blocking parts, a transition part and two side blocking parts, wherein the inner blocking part surrounds the condensing lens, the two outer blocking parts are positioned on the outer sides of the inner blocking part, the transition part is arranged along the edge of a ring opening of the inner blocking part, and the two side blocking parts are connected with the transition part.

The beneficial effects of the utility model are as follows:

when the light machine shell is made of plastic materials, the light ray part is gathered and directly irradiates on the light homogenizing plate instead of directly irradiating on the plastic light machine shell through the light homogenizing plate, the heat transferring speed of the light homogenizing plate is high, the part with the local overhigh temperature can be quickly transferred to other parts, the heat homogenizing effect is realized, the situation that the local temperature of the light homogenizing plate is overhigh does not exist, the plastic light machine shell is effectively protected from being deformed and melted, and the service life of the plastic light machine shell is ensured.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a cross-sectional perspective view of a first embodiment of the present utility model;

FIG. 2 is a perspective view of a vapor chamber according to an embodiment of the utility model;

fig. 3 is a perspective view of fig. 2 with the outer stop removed and rotated a certain angle.

The above reference numerals:

1 optical engine shell, 2LED light sources, 3 condensing lenses, 4 illumination reflecting lenses, 5 front phenanthrene mirrors, 6 vapor chamber, 60 inner baffle parts, 61 outer baffle parts, 62 transition parts and 63 side baffle parts.

Detailed Description

In order that those skilled in the art may better understand the technical solutions of the present utility model, the following detailed description of the present utility model with reference to the accompanying drawings is provided for exemplary and explanatory purposes only and should not be construed as limiting the scope of the present utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

It should be noted that, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like refer to an azimuth or a positional relationship based on that shown in the drawings, or that the inventive product is commonly put in place when used, merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples:

referring to fig. 1-3, the present embodiment provides a light machine housing protection device for a projector, where the projector includes a light machine housing 1 and an optical system, and the optical system includes an LED light source 2, a condenser lens 3, an illumination mirror 4, and a front phenanthrene mirror 5 sequentially disposed along a light traveling direction. Of course, the optical system further includes an LCD light valve, a post-phenanthrene mirror, a projection lens, etc., which are not important to the present utility model, and thus are not specifically described.

The light machine shell 1 is made of plastic materials, a light source mounting opening is formed in the light machine shell 1, the LED light source 2 is mounted at the light source mounting opening, the condenser lens 3, the illumination reflecting mirror 4 and the front phenanthrene mirror 5 are sequentially mounted inside the light machine shell 1, and the light machine shell protection device comprises a vapor chamber 6; and the soaking plate 6 is attached to the inner wall of the optical machine housing 1 corresponding to the space between the LED light source 2 and the condenser 3 and the space between the condenser 3 and the front phenanthrene mirror 5.

In this embodiment, the inner wall of the optical engine housing 1 corresponding between the LED light source 2 and the condenser 3 and between the condenser 3 and the front phenanthrene mirror 5 is provided with the soaking plate 6, and the plastic optical engine housing 1 is protected by the soaking plate 6, so that the light is partially gathered and directly irradiated on the soaking plate 6, but not directly irradiated on the plastic optical engine housing 1, the soaking plate 6 has high heat transfer speed, and can rapidly transfer the part with too high local temperature to other parts, thereby realizing soaking effect, preventing the soaking plate 6 from having too high local temperature, effectively protecting the plastic optical engine housing 1 from local deformation and melting, and ensuring the service life of the plastic optical engine housing 1.

Taking the vapor chamber 6 disposed on the inner wall of the optical machine housing 1 corresponding to the space between the condenser lens 3 and the front phenanthrene mirror 5 as an example, as shown in fig. 2 and 3, the vapor chamber 6 includes an inner baffle 60 disposed around the condenser lens 3, an outer baffle 61 disposed outside the inner baffle 60, a transition portion 62 disposed along the edge of the opening of the inner baffle 60, and two side baffles 63 connected to the transition portion 62. Fig. 2 and 3 show only one structural form of the soaking plate 6, which is not limited in particular, and the specific structure of the soaking plate 6 is adaptively designed according to the inner wall structure of the optical machine housing 1 corresponding to the optical collecting mirror 3 to the front phenanthrene mirror 5, so that the light irradiated on the inner wall of the optical machine housing 1 from the optical collecting mirror 3 to the front phenanthrene mirror 5 can be blocked by the soaking plate 6.

In this embodiment, the specific structure of the soaking plate 6 between the LED light source 2 and the condenser 3 is adaptively designed according to the inner wall structure of the optical machine housing 1 corresponding to the LED light source 2 and the condenser 3, and the light emitted from the LED light source 2 to the condenser 3 and irradiated on the inner wall of the optical machine housing 1 is required to be blocked by the soaking plate 6, which is not limited specifically.

In this embodiment, the soaking plate 6 is preferably an iron plate, an aluminum plate or a graphite sheet, and of course, other materials may be used, which is not particularly limited.

In this embodiment, the thickness of the soaking plate 6 is preferably 0.3mm to 1.2mm, but may be 0.5mm, 0.8mm, or 1.0mm, and is set according to practical situations, and is not limited herein.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The optical machine shell protection device of the projector comprises an optical machine shell (1) and an optical system, wherein the optical system comprises an LED light source (2), a condenser (3), an illumination reflecting mirror (4) and a front phenanthrene mirror (5) which are sequentially arranged in the light travelling direction; the light machine shell (1) is made of plastic materials, a light source mounting opening is formed in the light machine shell (1), the LED light source (2) is mounted at the light source mounting opening, and the condenser (3), the illumination reflector (4) and the front phenanthrene mirror (5) are sequentially mounted inside the light machine shell (1), and the light machine shell protection device is characterized by comprising a vapor chamber (6); the heat-equalizing plate (6) is arranged on the inner wall of the optical machine shell (1) in a fitting manner between the LED light source (2) and the collecting lens (3) and between the collecting lens (3) and the front phenanthrene mirror (5).

2. The optical engine housing protection device according to claim 1, wherein the soaking plate (6) is an iron plate, an aluminum plate or a graphite sheet.

3. A light engine housing protection device according to claim 1 or 2, characterized in that the thickness of the soaking plate (6) is 0.3-1.2 mm.

4. The optical engine housing protection device according to claim 1, characterized in that the soaking plate (6) between the condenser lens (3) and the front phenanthrene mirror (5): the condenser comprises an inner blocking part (60) arranged around the condenser (3), two outer blocking parts (61) arranged on the outer side of the inner blocking part (60), a transition part (62) arranged along the edge of a ring opening of the inner blocking part (60), and two side blocking parts (63) connected with the transition part (62).