CN103257516A

CN103257516A - Projector

Info

Publication number: CN103257516A
Application number: CN201310157688XA
Authority: CN
Inventors: 温政昱; 魏宏任
Original assignee: Qisda Optronics Suzhou Co Ltd; Qisda Corp
Current assignee: Qisda Optronics Suzhou Co Ltd; Qisda Corp
Priority date: 2013-05-02
Filing date: 2013-05-02
Publication date: 2013-08-21

Abstract

The invention provides a projector. The projector comprises a shell body, a guiding part, side walls, a first opening part, a second opening part and a flowing channel, wherein the shell body is provided with an air outlet, the guiding part is arranged outside the shell body and arranged corresponding to the air outlet, the guiding part comprises a top part, the side walls are connected with the top part, the first opening part is located on one side wall and communicated with the air outlet, the second opening part is opposite to the top part, the flowing channel is formed between the guiding part and the shell body, and the second opening part is located at the opening position of the bottom of the flowing channel, and the flowing channel is communicated with the outside through the second opening part. When the projector is used in a hanging mode, the opening direction of the second opening part is identical with the direction of gravity, and dust at the position of the air outlet can only move from the second opening part to the outside.

Description

A kind of projector

Technical field

The invention relates to a kind of projector, especially the dust resistant projector.

Background technology

Existing projector generally all comprises housing, optical element, and wherein optical element is positioned at housing, and housing is provided with air outlet, and the heat that is used for producing for projector is discharged, and the general and extraneous state that keeps normal open of air outlet.But the defective of this structure is, during this projector work, the dust at air outlet place to mobile everywhere, flies away around projector easily, and refluxing from air inlet enters enclosure interior, thereby pollute optical element or ray machine etc., influence life-span and the optical property of projector; Especially for the suspension type projector, than the easier intrusion that is subjected to dust of Table top type projector, and be not easy to remove.

Therefore, be necessary to design a kind of novel projector, to overcome above-mentioned defective.

Summary of the invention

The object of the present invention is to provide a kind of projector, it can make the dust at air outlet place move to gravity direction, reduces dust in air to the intrusion of projector, has dustproof effect preferably.

For reaching above-mentioned order, the invention provides a kind of projector, comprise that housing has air outlet; Guidance part is arranged at this outside, and with the corresponding setting of this air outlet, this guidance part comprises, the top; Sidewall is connected with this top; First peristome is positioned on this sidewall, and is connected with this air outlet; Second peristome is relative with this top; Runner is formed between this guidance part and this housing, and this second opening is in the bottom opening place of this runner, and this runner is connected with the external world by this second peristome; When this projector was in the mode of suspension use, the opening direction of this second peristome was identical with gravity direction, and the dust at this air outlet place only moves to the external world from this second peristome.

Preferable, also have an air inlet on the housing of this projector.

Preferable, this air inlet place is provided with in order to the dustproof grid.

Preferable, this projector further comprises air-intake device, and this air-intake device is close to this air inlet and is arranged in this housing, and this air-intake device parallels with this grid.

Preferable, this air inlet and this air outlet are positioned at the different both sides of this housing.

Preferable, this projector comprises colour wheel and colour wheel lid, and this colour wheel and colour wheel lid are arranged in this housing, and this colour wheel lid is used for this colour wheel of sealing.

Preferable, this projector also is provided with light pipe, and this colour wheel lid also further is provided with extension, and this extension is used for covering this light pipe.

Preferable, this projector also is provided with camera lens and protective device, and this protective device is positioned at outside this housing and with this camera lens and flexibly connects mutually.

Preferable, this guidance part is detachable the connection with this housing.

Preferable, this air outlet place is provided with radiator fan.

Preferable, the pattern when this mode of suspension is used for this projector is draped.

Compared with prior art; the outside of projector of the present invention is provided with the guidance part corresponding with air outlet; form runner between this guidance part and this housing; runner has opening; when this projector is in the mode of suspension use; the opening direction of this runner is identical with gravity direction; the dust at this air outlet place only moves to the external world from this opening; namely make the dust at this air outlet place move to fixing direction; avoid the dust at this air outlet place spread in this housing around; further avoid the dust at this air outlet place to enter into the inside of housing from air inlet, thereby avoided the pollution to optical element, played dustproof and protective effect.

Description of drawings

Fig. 1 is the perspective view of a kind of projector of the present invention.

Fig. 2 is the front view of projector shown in Figure 1.

Fig. 3 is the structural representation of the guidance part of projector of the present invention.

Fig. 4 removes structural representation behind the guidance part for projector of the present invention.

Fig. 5 is the working state schematic representation of projector of the present invention under mode of suspension.

Fig. 6 is the inner structure synoptic diagram of another embodiment of projector of the present invention.

Fig. 7 is the structural representation of colour wheel lid of the present invention.

Embodiment

For making purpose of the present invention, structure, feature and function thereof there are further understanding, cooperate embodiment to be described in detail as follows now.

Referring to figs. 1 through shown in Figure 5, the present invention has disclosed a kind of projector, comprises housing 1 and the optical element and the heat dissipation element (figure does not draw) that are arranged in housing 1 inside.

Housing 1 has first side 10, second side 11 and first 14, and wherein this second side 11 is adjacent with this first side 10, and this first 14 is connected with this first side 10 and this second side 11.This first side 10 is provided with air outlet 12 and camera aperture 13.This air outlet 12 is used for providing the passage of this projector heat radiation, and this camera aperture 13 is corresponding with the camera lens of the optical element of this projector, and the light that sends for this optical element passes through.In addition, this first 14 is provided with guidance panel 4, and guidance panel 4 is used for accepting the instruction (for example supply user's finger direct control, perhaps receive the signal that the user sends by telepilot) that the user sends.

Guidance part 2 is arranged at this housing 1 outside, and with these air outlet 12 corresponding settings.This guidance part 2 comprises top 20, the sidewall 21 that is connected with top 20, first peristome 22 and second peristome 23.Wherein first peristome 22 is positioned on the sidewall 21, and and the air outlet 12 of this housing 1 be connected; This second peristome 23 is positioned at an end of this guidance part 2, and relative with this top 20.Preferable, this guidance part 2 can adopt integrally formed mode to make by plastic material.

Runner 3 is formed between this guidance part 2 and this housing 1, and the bottom opening (indicate) that this second peristome 23 is positioned at this runner 3 locates, and this runner 3 is connected with the external world by this second peristome 23.

When this projector is in the mode of suspension use (as shown in Figure 5), first 14 of this projector down, the opening direction of this second peristome 23 identical with gravity direction (directions X as shown in Figure 5), the dust at this air outlet place 12 only move to the external world from this second peristome 23.At this, need to prove, mode of suspension refers to be draped pattern when using of projector, and when being in this " mode of suspension ", first 14 of this projector down, the direction of control panel 4 thereupon down so that receive the instruction (under this pattern, the user generally sends telecommand with telepilot to this control panel 4) that the user sends.For mode of suspension, projector has another pattern " desktop ", when being in this desktop use, projector generally is placed on the desktop, the control panel 4 of this projector generally up at this moment, so that user's operation, at this moment, the user generally uses this control panel 4 of hand direct control.

Also please with further reference to shown in Figure 4, second side 11 of this projector also has an air inlet 15, and this air inlet 15 is arranged at a side nearer apart from optical lens, also i.e. both sides (11,16) adjacent with first side 10 that is provided with camera aperture 13, this second side 11 is a side nearer apart from this camera aperture 13, the advantage of this setting is, make when guaranteeing the air intake effect of projector, make this air inlet relative far away as much as possible with this air outlet distance, advance in the housing 1 from these air inlet 15 backflows with the dust that prevents these air outlet 12 places.This air inlet provides passage for the inside that outside air enters housing 1.Extraneous air from this air inlet 15 enter housing 1 inside and through heater element (optical element etc.) and then in air outlet 12 enters into this runner 3, under the effect of gravity, enter the external world from this second peristome 23 at last.Preferable, these air inlet 15 places are provided with in order to the dustproof grid, prevent that extraneous dust from entering in the housing from air inlet 15.Certainly, also can filter screen be set at this grid place, when this filter screen is designed to allow air to enter in the housing dust be hindered outside air inlet, play the dustproof effect.For the filter screen that makes this air inlet does not influence the radiating effect of projector simultaneously again at dustproof, this projector further comprises air-intake device, contiguous this air inlet place of this air-intake device and being arranged in this housing, and this air-intake device parallels with this grid.This air-intake device can make entering in the housing 1 of extraneous air acceleration, to accelerate the radiating rate of projector, has guaranteed the effect of heat radiation.

In addition, need to prove that in above-described embodiment, this air inlet 15 and this air outlet 12 are positioned at the different both sides of this housing 1.This structure can avoid the dust at this air outlet place and the heat of projector discharge to advance in the projector housing 1 from these air inlet 15 backflows, thereby causes the reduction of radiating effect and the optical element of pollution enclosure interior.Preferable, in this projector, only this second side 11 is provided with air inlet 15, and does not all establish air inlet in other side of projector, avoids too much dust to enter the projector enclosure interior and pollutes optical element.

With reference to shown in Figure 6, be the inner structure synoptic diagram of another embodiment of projector.This projector comprises housing 1 ' and guidance part 2 ', and first side 10 ' of housing 1 ' is provided with air outlet (not indicating among the figure), and guidance part 2 ' is installed in the position corresponding with air outlet, and the bottom of guidance part 2 ' is provided with second peristome 23 '.The air outlet place further is provided with radiator fan 120 ', and this radiator fan 120 ' is positioned at housing 1 '.This radiator fan 120 ' is used for making the heat in the housing to accelerate to discharge, be beneficial to the heat radiation of projector, simultaneously, this radiator fan 120 ' also is beneficial to the movement of the dust at air outlet place, make entering in the runner (indicating) that the dust at air outlet place can be preferable, and move to the external world from second peristome 23 ' of the opening part that is positioned at runner, thereby make the discharge as much as possible of dust at air outlet place and outwards mobile, avoided the pollution of dust to projector.In addition, second side 11 ' of housing 1 locates to be provided with air inlet 15 ', air inlet 15 ' locates to be provided with grid or filter screen, play the dustproof effect, simultaneously, air inlet 15 ' locates to be provided with air-intake device 150 ', and this air-intake device 150 ' is close to this air inlet place and is arranged in this housing 1 ', this air-intake device 150 ' can make entering in the housing 1 ' of extraneous air acceleration, to accelerate the radiating rate of projector.Therefore the cooperation of this air-intake device 150 ' and grid or filter screen, have following effect: dustproof also can improve the radiating effect of projector simultaneously.

Continue also to be provided with colour wheel 50, light pipe 60, camera lens 70 and light source 80 in the housing of this projector with reference to shown in Figure 6, wherein this light source 80 and this light pipe 60 lay respectively at the both sides of this colour wheel 50, and axial and this colour wheel 50 of this light pipe 60 is perpendicular.These colour wheel 50 places are provided with colour wheel lid 51, and this colour wheel lid 51 is used for this colour wheel 50 of sealing, prevents this colour wheel 50 of contamination by dust.This colour wheel lid also step extension is provided with extension 510, and this extension 510 covers this light pipe, further plays to prevent that this light pipe from being polluted by dust.With reference to shown in Figure 7, above-mentioned colour wheel lid 51 and extension 510 are as a whole, and its benefit is, can dismantle simultaneously or install, and is beneficial to and raises the efficiency.Certainly, for further improving the dustproof effect of this projector, also can further be provided with protective device 71, this protective device 71 is positioned at outside this housing 1, and be movably arranged on the end of this camera lens 70, wherein this protective device 71 is formed (for example clear glass or transparent plastic etc. are formed) by transparent material, also can not play the dustproof effect when not influencing the optical effect in projector when work.The integrated application of above-mentioned dustproof means, make projector of the present invention can be in the more serious environment for use of air pollution operate as normal, and can reduce pollutant such as dust to the infringement of each components and parts on the projector or the adverse effect of performance, thereby prolong the serviceable life of projector.

In addition, among the present invention, this guidance part can be designed to detachable connection with being connected of this housing, so that this projector uses can satisfy " mode of suspension " or " desktop " simultaneously the time.That is, when " mode of suspension " used, this guidance part was connected with this housing, played the effect of guiding dust, and when " desktop " used, this guidance part can separate from this housing place.In addition, this guidance part is connected with the detachable of this housing, can be in the following manner: at guidance part projection is set, at housing groove is set, projection by this guidance part cooperates with the groove of this housing, realize being connected of guidance part and housing, projection is taken out in groove, can realize separating of guidance part and housing; Also can adopt the magnet ways of connecting, perhaps the VELCRO ways of connecting can realize easily that guidance part is connected with the detachable of housing.By implementing present embodiment, can make projector satisfy multiple mode of operation, realize one-object-many-purposes, user-friendly.

The present invention is described by above-mentioned related embodiment, yet above-described embodiment is only for implementing example of the present invention.Must be pointed out that the embodiment that has disclosed does not limit the scope of the invention.On the contrary, the change of doing without departing from the spirit and scope of the present invention and retouching all belong to scope of patent protection of the present invention.

Claims

1. a projector is characterized in that, comprise,

Housing has air outlet;

Guidance part is arranged at this outside, and with the corresponding setting of this air outlet, this guidance part comprises,

The top;

Sidewall is connected with this top;

First peristome is positioned on this sidewall, and is connected with this air outlet; ,

Second peristome is relative with this top;

Runner is formed between this guidance part and this housing, and this second opening is in the bottom opening place of this runner, and this runner is connected with the external world by this second peristome;

When this projector was in the mode of suspension use, the opening direction of this second peristome was identical with gravity direction, and the dust at this air outlet place only moves to the external world from this second peristome.

2. projector as claimed in claim 1 is characterized in that, also has an air inlet on the housing of this projector.

3. projector as claimed in claim 2 is characterized in that, this air inlet place is provided with in order to the dustproof grid.

4. projector as claimed in claim 3 is characterized in that, this projector further comprises air-intake device, and this air-intake device is close to this air inlet and is arranged in this housing, and this air-intake device parallels with this grid.

5. projector as claimed in claim 2 is characterized in that, this air inlet and this air outlet are positioned at the different both sides of this housing.

6. projector as claimed in claim 1 is characterized in that, this projector comprises colour wheel and colour wheel lid, and this colour wheel and colour wheel lid are arranged in this housing, and this colour wheel lid is used for this colour wheel of sealing.

7. projector as claimed in claim 6 is characterized in that, this projector also is provided with light pipe, and this colour wheel lid also further is provided with extension, and this extension is used for covering this light pipe.

8. projector as claimed in claim 1 is characterized in that, this projector also is provided with camera lens and protective device, and this protective device is positioned at outside this housing and with this camera lens and flexibly connects mutually.

9. projector as claimed in claim 1 is characterized in that, this guidance part is detachable the connection with this housing.

10. projector as claimed in claim 1 is characterized in that, this air outlet place is provided with radiator fan.