CN1888976A

CN1888976A - Projector

Info

Publication number: CN1888976A
Application number: CN 200510081022
Authority: CN
Inventors: 许年辉; 简儒文
Original assignee: Coretronic Corp
Current assignee: Coretronic Corp
Priority date: 2005-06-27
Filing date: 2005-06-27
Publication date: 2007-01-03
Anticipated expiration: 2025-06-27
Also published as: CN100485520C

Abstract

A projecting camera with diffuser structure, educes the heat energy creating by the light equipment out the projecting camera by the opening of the outer shell. The diffuser structure includes the first output structure and the second output structure, which they are nearby closely, with several the first diffuser slice and the second diffuser slice that extends horizontally and spaces juxtaposition lengthways. The diffuser surface of the first diffuser slice sets horizontally along the wind direction, the diffuser surface of the second diffuser slice sets along the wind direction. The first output structure is near the exterior of the projecting camera, the second output structure is near the inside of the projecting camera.

Description

Projector

Technical field

The present invention relates to a kind of projector, especially relate to the flow-guiding structure of utilization in projector.

Background technology

Projector utilizes bulb to provide projects images required light, still, when the light supply apparatus of for example bulb produces light, also produces a large amount of heat energy, so need the heat energy that bulb produced be discharged outside the projector by cooling system.

With reference to Fig. 1, Fig. 1 is the side sectional view of 2 first embodiment of known technology projector.Cooling system comprises fan 4 and flow-guiding structure 6, and fan 4 is arranged on the inside of projector 2 rear ends, and in order to produce airflow, flow-guiding structure 6 installs in the opening of end housing 8 before projector 2.The airflow that fan 4 is produced is brushing the bulb 10 of high heat energy, by flow-guiding structure 6 by opening to derive the outside of projector 2.

Flow-guiding structure 6 comprises a plurality of horizontal expansions and longitudinal separation flow deflector (vanes) 602 arranged side by side, and the flow-guiding surface of each flow deflector 602 is moved towards the transverse horizontal setting along air-flow.

Yet, though being horizontally disposed with the mode of flow deflector 602, this kind can obtain maximum system air flow, but light shielding ability extreme difference, the problem of light leak is not only arranged, and (the light direct projection of bulb 10 goes out, dazzling and can disturb the picture of projection), the user also can look at the element of projector 2 inside easily straight, is unfavorable for very much the product shape design.

For improving these shortcomings, with reference to Fig. 2, Fig. 2 is the side sectional view of 20 second embodiment of known technology projector.The position of fan 24, bulb 16 and flow-guiding structure 26 is roughly as Fig. 1, and different is the set-up mode of flow deflector 2602.

Flow-guiding structure 26 included a plurality of flow deflectors 2602 are that horizontal expansion and longitudinal separation are arranged side by side.And, the flow-guiding surface of each flow deflector 2602 be along air-flow trend, from projector 20 inside to the oblique downward setting in outside, so, the effect that prevents light leak and cover inner member is just arranged.

Yet, though this oblique mode that flow deflector 2602 is set can solve the problem that exists among Fig. 1 embodiment, but the airflow with heat energy directly blows to desktop, cause the flow field instantaneous variation to hinder dispatch hot-air and then the reduction system wind flow except impact desktop because of airflow, also can cause the temperature of desktop to raise.

Therefore, the object of the present invention is to provide the flow-guiding structure of a kind of utilization in projector, to address the above problem.

Summary of the invention

The object of the present invention is to provide the flow-guiding structure of a kind of utilization in projector,, avoid outside the light leak, and the airflow that can avoid having heat energy directly brushes desktop and causes the problem that the desktop temperature raises except covering inner member.

For achieving the above object, projector in order to the heat energy that light supply apparatus produced, is derived by the opening of projector shell by the projector with flow-guiding structure of the present invention.Flow-guiding structure comprises the first air-out structure and the second air-out structure, and the first air-out structure and second air-out structure next-door neighbour are provided with, and have a plurality of horizontal expansions and longitudinal separation first flow deflector arranged side by side and second flow deflector respectively.Wherein, the flow-guiding surface of first flow deflector is moved towards horizontally set along air-flow, and the flow-guiding surface of second flow deflector is moved towards oblique setting along air-flow.In addition, the contiguous projector of first air-out structure outside, the contiguous projector of second air-out structure inside.

Can be further understood by following detailed Description Of The Invention and accompanying drawing about advantage of the present invention and design.

Description of drawings

Fig. 1 is the side sectional view of first embodiment of known technology projector;

Fig. 2 is the side sectional view of second embodiment of known technology projector;

Fig. 3 is the side sectional view of projector of the present invention; And

Fig. 4 is the visual angle synoptic diagram of shadowing elements of the present invention and anti-light leak.

Embodiment

With reference to Fig. 3, Fig. 3 is the side sectional view of projector 30 of the present invention.The present invention relates to a kind of projector 30, it comprises a shell 32, a light supply apparatus 34, a fan 36 and a flow-guiding structure 38.

For example the light supply apparatus 34 of bulb is arranged in the shell 32, in order to provide projector 30 required light.

Fan 36 is arranged on the rear end of projector 30, and in order to producing airflow, so that the heat energy that light supply apparatus 34 is produced, the opening by projector's 30 front ends is sent to projector 30 outsides.

Flow-guiding structure 38 is arranged at the opening of shell 32, in order to the heat energy that light supply apparatus 34 is produced, with predetermined horizontal direction, derives projector 30 by this opening with airflow.

Further specify, flow-guiding structure 38 comprises one first air-out structure 40 and one second air-out structure 42.The first air-out structure 40 is arranged at the contiguous projector of opening 30 outsides of shell 32, and the second air-out structure, 42 next-door neighbours, the first air-out structure 40 is arranged at the contiguous projector of opening 30 inside of shell 32.Wherein, the side of second flow deflector, 4202 contiguous projectors, 30 outsides, side butt joint in first flow deflector, 4002 contiguous projectors, 30 inside.

The first air-out structure 40 comprises a plurality of horizontal expansions and longitudinal separation first flow deflector 4002 arranged side by side, and wherein the flow-guiding surface of first flow deflector 4002 is moved towards horizontally set along air-flow; But or the transverse horizontal setting, thus, the heat energy that light supply apparatus 34 can be produced is laterally derived projector 30 with airflow by this opening.。

The second air-out structure 42 comprises a plurality of horizontal expansions and longitudinal separation second flow deflector 4202 arranged side by side, and wherein the flow-guiding surface of second flow deflector 4202 is moved towards oblique setting along air-flow.

Specification with at present general projector 30 is implemented, and the optimum thickness range of first flow deflector 4002 is between the 5mm to 10mm.And cooperate the length of general flow deflector along the air-flow trend, in order to bring into play the effect of covering inner member and preventing light leak effectively, the tilt angle theta of second flow deflector 4202 and horizontal direction is between 30 degree are spent to 60.

With further reference to Fig. 4, Fig. 4 is the visual angle synoptic diagram of shadowing elements of the present invention and anti-light leak.As shown in the figure, wherein with the second air-out structure 42 of the oblique setting of tilt angle theta, concerning the angle of vision, the light that shield light source apparatus 34 is produced directly penetrates projector 30.And simultaneously, the second air-out structure 42 of this oblique setting is also covered the element by the sight line direct-view projector 30 of projector 30 outsides.

Therefore, by the flow-guiding structure 38 of utilization of the present invention in projector 30, adopt the flow deflector of different trends in the first air-out structure 40 and the second air-out structure 42, except can covering inner member, avoid the light leak, and the airflow that can avoid having heat energy directly brushes desktop and causes the problem that the desktop temperature raises.

By the detailed description of above preferred specific embodiment, hope can be known description feature of the present invention and design more, and is not to come category of the present invention is limited with the above-mentioned preferred specific embodiment that is disclosed.On the contrary, its objective is that hope can contain the arrangement of various changes and identity property in claim scope of the present invention.

Claims

1. projector comprises:

One shell;

One light supply apparatus is arranged in the described shell, in order to provide described projector required light; And

One flow-guiding structure is arranged at the opening of described shell, in order to the heat energy that described light supply apparatus produced, derives described projector by described opening with airflow, and described flow-guiding structure comprises:

One first air-out structure comprises first flow deflector that a plurality of horizontal expansions and longitudinal separation are arranged side by side, and the flow-guiding surface of wherein said first flow deflector is moved towards horizontally set along air-flow,

One second air-out structure comprises second flow deflector that a plurality of horizontal expansions and longitudinal separation are arranged side by side, and the flow-guiding surface of wherein said second flow deflector is moved towards oblique setting along air-flow,

Wherein, the described first air-out structure is arranged on the contiguous described projector of the opening outside of described shell, the described second air-out structure is close to the contiguous described projector of the opening inside that the described first air-out structure is arranged on described shell, the heat energy that described light supply apparatus produced is laterally derived described projector with airflow by described opening.

2. projector as claimed in claim 1, the second air-out structure of wherein said oblique setting, the light that the shield light source apparatus is produced directly penetrates projector; Or cover element by the sight line of projector outside direct-view projector.

3. projector as claimed in claim 1, the side of the contiguous projector of wherein said second flow deflector outside, side butt joint in the contiguous projector of first flow deflector inside.

4. projector as claimed in claim 1, wherein said projector also comprises an air-supply arrangement, this air-supply arrangement with the heat energy that light supply apparatus was produced, is sent to projector outside by opening in order to produce airflow.

5. projector as claimed in claim 4, wherein said air-supply arrangement is a fan.

6. projector as claimed in claim 1, wherein said light supply apparatus is a bulb.

7. projector as claimed in claim 1, the thickness range of wherein said first flow deflector is between the 5mm to 10mm.

8. projector as claimed in claim 1, wherein said second flow deflector and level to the angle of inclination from 30 the degree to 60 the degree between.

9. projector as claimed in claim 1, wherein said opening is arranged on projector's front end.

10. projector as claimed in claim 1, the contiguous flow-guiding structure of wherein said light supply apparatus.