CN101435985A

CN101435985A - Projection device

Info

Publication number: CN101435985A
Application number: CNA2007102025516A
Authority: CN
Inventors: 温文福; 黄凯
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2007-11-15
Filing date: 2007-11-15
Publication date: 2009-05-20

Abstract

The invention relates to a projection device. The projection device comprises a shell, an air inlet part and at least one heat radiator. The air inlet part is arranged on the shell. The at least one heat radiator corresponding to the air inlet part is arranged in the shell. The air inlet part comprises a shutter which comprises a driving device and a blade set. When the heat radiator is started to work, the driving device drives the blade set to form at least one passage through which external air enters the projection device to radiate the projection device. When the heat radiator stops working, the driving device drives the blade set to seal the air inlet part. The shutter of the air inlet part of the projection device forms an air inlet passage when the heat radiator is started, and automatically closes when the heat radiator stops working, so as to ensure that dust does not enter the interior of the projection device from the air inlet part when the heat radiator stops working, and improve projection quality with simple and convenient operation at the same time.

Description

Projection arrangement

Technical field

The present invention relates to a kind of electronic equipment, relate in particular to a kind of projection arrangement that is applied to projection.

Background technology

Projector generally can be provided with intake section, makes heat abstractor such as fan introduce cool exterior air from intake section the element that produces heat in the projector is dispelled the heat.Intake section usually and the one-body molded setting of shell of projector.When heat abstractor was started working, heat abstractor was introduced cool exterior air by intake section projector is dispelled the heat.

Yet when heat abstractor quit work, intake section can't be closed, and dust can enter projector inside from intake section in the time of can causing heat abstractor not worked like this, thereby influenced projector's projection quality.

Summary of the invention

In view of this, be necessary to provide a kind of projection arrangement with intake section of automatic opening.

A kind of projection arrangement, it comprises a housing, an intake section and at least one heat abstractor.Described intake section is arranged on the described housing.Described at least one heat abstractor is corresponding with described intake section to be arranged in the described housing.Described intake section comprises a window shutter, and described window shutter comprises a drive unit and a vane group.When described heat abstractor unlatching work, described drive unit drives described vane group and forms at least one passage and make extraneous air enter projection arrangement so that projection arrangement is dispelled the heat.When described heat abstractor quit work, described drive unit drove the airtight described intake section of described vane group.

Compared to prior art, the window shutter of the intake section of described projection arrangement can form inlet channel when heat abstractor unlatching work, intake section when heat abstractor quits work on the airtight described projection arrangement housing, guarantee that dust when heat abstractor quits work can not enter the inside of projection arrangement from intake section, simultaneously also improved projection quality, easy and simple to handle.

Description of drawings

Fig. 1 is the overall schematic of projection arrangement of the present invention.

Fig. 2 is the other direction synoptic diagram of Fig. 1.

Perspective exploded view when Fig. 3 closes for the window shutter of the projection arrangement of Fig. 1.

Fig. 4 is the other direction perspective exploded view of Fig. 3.

Embodiment

Below in conjunction with accompanying drawing embodiment of the present invention is described in further detail.

See also Fig. 1 to Fig. 4, projection arrangement 100 of the present invention comprises a housing 10, intake section 20, a heat abstractor 40 and a control module 60.Described heat abstractor 40 is contained in the described housing 10.Intake section 20 corresponding heat abstractors 40 are provided with.Described control module 60 electrically connects with described heat abstractor 40 and described intake section 20 respectively.

Housing 10 is a housing of accommodating the arbitrary shape of optical element.In the present embodiment, housing 10 be shaped as rectangular parallelepiped.Housing 10 comprises a base plate 12 and four side plates 14.As shown in Figure 3, housing 10 side plate 14 is provided with a peristome 144.Peristome 144 shapes are any, and in the present embodiment, peristome 144 is a rectangle.Peristome 144 has four sidewalls, two relative sidewall 146,148 corresponding respectively a plurality of first axis holes 1462 and a plurality of second axis holes 1222 of offering.In the present embodiment, sidewall 146,148 is offered five first axis holes 1462 and five second axis holes 1222 respectively.In the present embodiment, sidewall 148 is made of the part of base plate 12, and promptly second axis hole 1222 is opened on the base plate 12.The optical element of accommodating in the housing 10 comprises light source, integration rod, imaging device and projection lens first-class (all not showing among the figure).

Intake section 20 is used to make cool exterior air to pass through in the heat abstractor 40 introducing projection arrangements 100.Intake section 20 comprises a window shutter 22 and peristome 144.Described window shutter 22 is arranged at peristome 144.

Window shutter 22 comprises a vane group 24 and a drive unit 26.Described drive unit 26 is connected with described vane group 24 and moves in order to drive described vane group 24, thereby makes vane group 24 form air intake passage or airtight intake section 20.

Vane group 24 comprises a plurality of blades 242, and five blades 242 are set in the present embodiment.Each blade 242 is arranged at the peristome 144 of housing 10.Each blade 242 shape and corresponding the getting final product of peristome 144 shapes.The sidewall that each blade 242 is relative with wantonly two of peristome 144 respectively is connected.In the present embodiment, sidewall 146, the 148 rotating connections that each blade 242 is relative with two respectively.Each blade 242 comprise a body 244 and one along an end face 2440 of body 244 perpendicular to body 244 outward extending flanges 246.Being shaped as of flange 246 do not influence the arbitrary shape that blade 242 is worked.In the present embodiment, flange 246 is similar to be triangle.Relative both ends of the surface at body 244 deviate from one first rotating shaft 2442 of extension and second rotating shaft 2444 mutually along the both ends of the surface direction perpendicular to body 244 respectively.Described first rotating shaft 2442 matches with first axis hole 1462 of the peristome 144 of intake section 20, and described second rotating shaft 2444 matches so that each blade 242 is connected with housing 10 respectively with second axis hole 1222 of described base plate 12.Body 244 have two first relative sides 2446, second side 2448 and respectively with first side 2446, the 3rd adjacent side 2449 of second side 2448.2446 upper edge end faces 2440 extend one first boss 27 in described first side, and one second boss 28 is extended in described the 3rd side 2449 in 2448 upper edges, described second side.Described first boss 27 comprises one first faying face 272.Described second boss 28 comprises one second faying face 282.Each adjacent vanes 242 matches in order to the airtight intake section 20 of energy when heat abstractor 40 quits work by first faying face 272 of first boss 27 and second faying face 282 of second boss 28.Flange 246 offers the 5th axis hole 2464 that runs through flange 246 away from an end of body 244.

Drive unit 26 comprises a motor 262, an adaptor 264 and a web joint 266.Described motor 262 is connected with described web joint 266 by adaptor 264.Motor 262 has a rotating shaft 2622.Web joint 266 has a first surface 2662 and first a relative bottom surface 2664.Direction in described first surface 2662 upper edges perpendicular to first surface 2662 is extended one the 3rd rotating shaft 2666.Direction in 2664 upper edges, described first bottom surface perpendicular to first bottom surface 2664 is extended the 4th rotating shaft 2668 that five correspondences evenly are provided with at interval, and each the 4th rotating shaft 2668 is corresponding with the 5th axis hole 2464 of each blade 242 respectively.Adaptor 264 offers a Triaxial hole 2642 and one the 4th axis hole 2644 that runs through adaptor 264 and be provided with at interval.The two opposite surfaces of adaptor 264 is corresponding with motor 262 and web joint 266 respectively and match with the rotating shaft 2622 of motor 262 by Triaxial hole 2642 respectively, and by the 4th axis hole 2644 match with the 3rd rotating shaft 2666 of web joint 266 with so that motor 262 driving adaptors 264 move with drive web joint 266.

Heat abstractor 40 is for introducing cool exterior air element in the housing 10.In the present embodiment, heat abstractor 40 is a fan.The intake section 20 of the side plate 14 of heat abstractor 40 corresponding housing 10 is arranged near the thermal source in the projection arrangement 100, in order to introduce cool exterior air near the heat radiation of the thermals source the heat abstractor 40.

Control module 60 electrically connects with the motor 262 of heat abstractor 40 and drive unit 26 respectively.Control module 60 is controlled the unlatching of heat abstractor 40 and motor 262 simultaneously and is closed.

When control module 60 control heat abstractors 40 are opened work, this moment, motor 262 drove the rotation of adaptor 264 clockwise direction by rotating shaft 2622, three rotating shaft 2666 of adaptor 264 by web joint 266 drives web joints 266 and moves, and turns an angle so that form inlet channel between each adjacent blades 242 around separately first rotating shaft 2442 and second rotating shaft 2444 thereby web joint 266 drives each blade 242 respectively by each the 4th rotating shaft 2668.Heat abstractor 40 dispels the heat to thermal source to introduce cool exterior air by the inlet channel that forms between the adjacent vanes 242.

When control module 60 control heat abstractors 40 quit work, this moment, motor 262 drove adaptor 264 rotation counterclockwise by rotating shaft 2622, adaptor 264 moves by the 3rd rotating shaft 2666 drive web joints 266 of web joint 266, thereby web joint 266 drives each blade 242 respectively by each the 4th rotating shaft 2668 and rotates around separately first rotating shaft 2442 and second rotating shaft 2444, so that second faying face 282 of first faying face 272 of first boss 27 of each adjacent blades 242 and second boss 28 matches in order to airtight intake section 20.

Compared to prior art, the shutter of the intake section of described projection arrangement can form air inlet when heat abstractor unlatching work Passage, the intake section when heat abstractor quits work on the airtight described projection arrangement housing is when guaranteeing that heat abstractor quits work Dust can not enter from intake section the inside of projection arrangement, has improved projection quality simultaneously yet, and is easy and simple to handle.

In addition, those skilled in the art also can do other variation in spirit of the present invention, as long as it does not depart from technology effect of the present invention Really, all should be included in the present invention's range required for protection.

Claims

[claim 1] a kind of projection arrangement, it comprises a housing, an intake section and at least one heat abstractor, described intake section is arranged on the described housing, described at least one heat abstractor is corresponding with described intake section to be arranged in the described housing, it is characterized in that, described intake section comprises a window shutter, described window shutter comprises a drive unit and a vane group, when described heat abstractor unlatching work, described drive unit drives described vane group and forms at least one passage and make extraneous air enter projection arrangement so that projection arrangement is dispelled the heat, when described heat abstractor quit work, described drive unit drove the airtight described intake section of described vane group.
[claim 2] projection arrangement as claimed in claim 1 is characterized in that, described housing comprises a base plate and at least one side plate, and described side plate is provided with a peristome, and described window shutter is arranged at described peristome.
[claim 3] projection arrangement as claimed in claim 2, it is characterized in that, described peristome has four sidewalls, wantonly two relative sidewalls offer corresponding a plurality of first axis hole and a plurality of second axis hole respectively, described vane group comprises a plurality of blades, each blade comprises a body, the edge is perpendicular to one first rotating shaft of the corresponding extension of the both ends of the surface direction of body and second rotating shaft respectively for the both ends of the surface of each blade, and described first rotating shaft and described second rotating shaft match so that each blade is connected with described housing with described first axis hole and described second axis hole respectively.
[claim 4] projection arrangement as claimed in claim 3 is characterized in that, a wherein sidewall of described peristome is made of the part of described base plate.
[claim 5] projection arrangement as claimed in claim 1, it is characterized in that, described drive unit also comprises a motor, an adaptor and a web joint, described motor has a rotating shaft, described adaptor offers a Triaxial hole and one the 4th axis hole that runs through described adaptor and be provided with at interval, described web joint comprises a first surface, direction in described first surface upper edge perpendicular to described first surface is extended one the 3rd rotating shaft, described adaptor matches with the rotating shaft of described motor and the 3rd rotating shaft of described web joint by described Triaxial hole and described the 4th axis hole respectively in its two opposite surfaces, with so that the described adaptor of described motor driven move to drive described web joint.
[claim 6] projection arrangement as claimed in claim 5, it is characterized in that, described web joint also comprises first bottom surface relative with described first surface, extend the 4th rotating shaft that a plurality of even intervals are provided with on edge, described first bottom surface perpendicular to the direction of described first bottom surface, each blade comprise a body and one along an end face of this body perpendicular to the outward extending flange of described body, described flange is offered the 5th axis hole that runs through described flange away from an end of described body, and the flange of each blade makes each blade around separately first rotating shaft and second rotating shaft rotate formation inlet channel with each corresponding cooperation of the 4th rotating shaft of described web joint so that motor moves by the drive web joint by described the 5th axis hole.
[claim 7] projection arrangement as claimed in claim 6 is characterized in that, the body of each blade have two first relative sides, second side and respectively with the 3rd adjacent side of first side and second side.Described end face extends one first boss in upper edge, described first side, one second boss is extended in described the 3rd side in upper edge, described second side, described first boss comprises one first faying face, described second boss comprises one second faying face, and each adjacent blades first faying face and second faying face by separately respectively matches in order to airtight described intake section.
[claim 8] projection arrangement as claimed in claim 5, it is characterized in that, described projection arrangement also comprises a control module, described control module electrically connects with the motor of described heat abstractor and described window shutter respectively, in order to control described heat abstractor and described window shutter while On/Off.