CN103135325B - Dustproof structure for projector - Google Patents
Dustproof structure for projector Download PDFInfo
- Publication number
- CN103135325B CN103135325B CN201110378333.4A CN201110378333A CN103135325B CN 103135325 B CN103135325 B CN 103135325B CN 201110378333 A CN201110378333 A CN 201110378333A CN 103135325 B CN103135325 B CN 103135325B
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- CN
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- Prior art keywords
- projector
- rotating shaft
- dustproof structure
- fair water
- water fin
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Abstract
The invention provides a kind of dustproof structure for projector, it comprises a color block module, a fair water fin and a circuit board.Described color block module has a motor and an autochromatic plate, and described motor drives described autochromatic plate to rotate with a rotating shaft.Described fair water fin is arranged on described circuit board.The hole that described fair water fin has, a dust removal port and a dust collecting trough, and described dust removal port and described dust collecting trough are positioned at the both sides of described hole, described dust removal port is positioned at the lateral margin of described rotating shaft, and described dust collecting trough is positioned at the lower edge of described rotating shaft.Described circuit board has a sensor, and described sensor is positioned at the hole of described fair water fin.The present invention, by described dust removal port that described fair water fin has and described dust collecting trough, effectively can safeguard that described sensor is avoided polluting.
Description
Technical field
The present invention relates to a kind of dustproof structure for projector, espespecially a kind of colour wheel has the dustproof structure for projector of guiding device.
Background technology
The light source that general projector uses, as tungsten halogen lamp, metal halide lamp, ultrahigh pressure mercury lamp, xenon lamp or light emitting diode (LED), LASER Light Source etc., its common characteristic had to produce high heat.Such high heat must carry out the eliminating of heat by heat abstractor, otherwise will affect the normal operation of this projector.The heat abstractor of current projector, several cooling fans of collocation mutually are normally set on the casing of projector, use and by the cold air feeding casing outside casing, described light source is dispelled the heat, heat energy is discharged outside described casing to maintain the normal operation of projector.But described light source place has the color block module controlling projection image's color to be arranged, the below of described color block module is provided with a sensor, described covers disposed on sensor is equipped with a transmitter and a receiver, transmit in order to make described transmitter and the signal reflected by described receiver acceptance, to sense the situation that described colour wheel rotates, by stablizing to make the colors of image of projection the control of described colour wheel rotary state.When described light source dispels the heat with outside air, in described air, the dust of entrained with will little by little be deposited on described sensor, make described sensor cannot the rotary state of accurate sense colour wheel, thus the colors of image of described projection will produce aberration, it is uncontrollable that severe patient can make colour wheel rotate, and causes projector cannot normal operation.Therefore, projector, except sucking air to casing and will having dust-proof conduct, the sensor more need arranged in pairs or groups at color block module has further dust-proof setting.
Summary of the invention
In view of this, be necessary to provide and can be convenient to assemble and effectively can prevent a kind of dustproof structure for projector of dust fall.
The invention provides a kind of dustproof structure for projector, it comprises a color block module, a fair water fin and a circuit board.Described color block module has a motor and an autochromatic plate, and described motor drives described autochromatic plate to rotate with a rotating shaft.Described fair water fin is arranged on described circuit board.The hole that described fair water fin has, a dust removal port and a dust collecting trough, and described dust removal port and described dust collecting trough are positioned at the both sides of described hole, described dust removal port is positioned at the lateral margin of described rotating shaft, and described dust collecting trough is positioned at the lower edge of described rotating shaft.Described circuit board has a sensor, and described sensor is positioned at the hole of described fair water fin.
Compare prior art, dustproof structure for projector of the present invention, by the described fair water fin arranged between described motor lower edge and described circuit board, the air-flow that described motor operation is produced can have the flow direction of setting, described setting air flow energy is discharged by the described dust removal port of described fair water fin, and get rid of the dust of entrained with in most of air-flow, part flows through the air-flow of described circuit board, dust will be made to cross described sensor is detained in described dust collecting trough, thus can effectively prevent dust from resting on described sensor, there is good dust-proof effect.
Accompanying drawing explanation
Fig. 1 is the embodiment schematic diagram of dustproof structure for projector of the present invention.
Fig. 2 is the fair water fin of the dustproof structure for projector of Fig. 1 and the combination schematic diagram of circuit board.
Fig. 3 is the III-III cut-open view of the dustproof structure for projector of Fig. 1.
Main element symbol description
Dustproof construction 10
Color block module 12
Motor 122
Autochromatic plate 124
Rotating shaft 126
Fair water fin 14
Guiding face 142
Arcwall face 1422
Plane 1424
Hole 144
Dust removal port 146
Dust collecting trough 148
Sidewall 1482
Circuit board 16
Sensor 162
Guiding runner 20
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Do one below in conjunction with accompanying drawing to the present invention specifically to introduce.
Referring to shown in Fig. 1, is the embodiment schematic diagram of dustproof structure for projector of the present invention, and described dustproof construction 10 comprises a color block module 12, fair water fin 14 and a circuit board 16.Described color block module 12 has a motor 122 and an autochromatic plate 124, and wherein said motor 122 drives described autochromatic plate 124 High Rotation Speed with a rotating shaft 126.Described autochromatic plate 124 is combined by several colored filter (not indicating in figure) to form.Such as, combined by the optical filter such as red, blue and green and form described autochromatic plate 124, make described autochromatic plate 124 can carry out the effect of color separation to the white light of described light source of projector.Described fair water fin 14 is arranged on described circuit board 16, and is positioned at the lower edge of described motor 122.The upper surface of described fair water fin 14 is a guiding face 142, and described guiding face 142 facings the outer edge surface of described rotating shaft 126, makes to form one between the outer edge surface of described guiding face 142 and described rotating shaft 126 and guide runner 20.Shown in Fig. 2, for the fair water fin of Fig. 1 dustproof structure for projector and the combination schematic diagram of circuit board, the hole that described fair water fin 14 has 144, dust removal port 146 and a dust collecting trough 148, described dust removal port 146 is positioned at the front end of described hole 144, and the rear end of described hole 144 is described dust collecting trough 148.The described guiding face 142 of described fair water fin 14 includes an arcwall face 1422 and a plane 1424, described arcwall face 1422 also upwards extends in the front end of described plane 1424, make described arcwall face 1422 be positioned at the lateral margin of described rotating shaft 126, described plane 1424 described rotating shaft 126 lower edge and extend back.Described arcwall face 1422 and the described plane 1424 of described plane 1424 joining place arrange described hole 144, the described arcwall face 1422 of described hole 144 front end arranges described dust removal port 146, and the described plane 1424 of described hole 144 rear end arranges described dust collecting trough 148.The material of described fair water fin 14 is plastics, and described plastics are transparent polycarbonate (PC, Polycarbonate) material.Described fair water fin 14 binds with ultraviolet light UV (Ultraviolet Rays) glue and described circuit board 16.Described circuit board 16 has a sensor 162 to arrange, described sensor 162 is positioned at the described hole 144 of described fair water fin 14, and be positioned at the below of described rotating shaft 126, described sensor 162 is in order to sense the operational situation of described rotating shaft 126, and the information sensed is sent to the control device of projector, make described control device can control the rotation color separation effect of described autochromatic plate 124, thus maintain the color of projector image.Described sensor 162 is operational situations that the cooperation of a signal projector and the signal receiver (not indicating in figure) utilizing it to have senses described rotating shaft 126, if the end face of described sensor 162 covers by dust, thus make described signal projector or described signal receiver produce the exception of signal, will the rotation of thus uncontrollable described autochromatic plate 124, and making the colors of image of projector abnormal, serious words may make projector normally cannot carry out projecting the running of image.Therefore, be necessary to carry out dust-proof conduct to described sensor 162 in fact, to safeguard the image projection running of projector.
Refer to shown in Fig. 3, fair water fin 14 of the present invention is in the setting of described rotating shaft 126 lower edge, make the described guiding runner 20 formed between the outer edge surface of described guiding face 142 and described rotating shaft 126, in the air turbulence that described rotating shaft 126 High Rotation Speed produces, one air-flow can be formed in described guiding runner 20.Described air-flow flows to described plane 1424 by the described arcwall face 1422 of described guiding face 142 along with the rotation of described rotating shaft 126.Described arcwall face 1422 is positioned at the lateral margin of described rotating shaft 126, described dust removal port 146 is made to be positioned at the tangent position at described rotating shaft 126 edge, when producing described air-flow in described guiding runner 20, the tangential direction that described air-flow will follow described rotating shaft 126 flows to described dust removal port 146, thus the air-flow in most of described guiding runner 20 can be discharged by described dust removal port 146, discharge most air-flow by described dust removal port 146, just can get rid of most of dust of entrained with in described air-flow.Described dust removal port 146 undischarged fraction air-flow can continue the rear end flowing to described plane 1424, the stream pressure of described fraction air-flow, and the described hole 144 that described fraction air-flow can be made to cross described plane 1424 easily flows to described dust collecting trough 148.Described sensor 162 end face in described hole 144 is lower than the surface of described hole 144, and the dust crossing the described fraction air-flow entrained with of described plane 1424 would not drop at described sensor 162 end face.The sidewall 1482 of described dust collecting trough 148 rear end, higher than the surface of described plane 1424, makes the minority dust carried secretly in described fraction air-flow be stopped and stagnates the effect producing control of dust in described dust collecting trough 148.Therefore, the dust of the described air-flow entrained with produced in described guiding runner 20, major part dust can be discharged by described dust removal port 146 along with described air-flow, remaining fraction dust then can be stagnated in described dust collecting trough 148 along with described air-flow, plays and has dust-proof effect to the described sensor 162 in described hole 144.In addition, the described air-flow that described plane 1424 flows through has the cleaning action removing described sensor 162 surface dirt simultaneously, make described sensor 162 really can perform the rotary state that it senses described autochromatic plate 124, reach the normal operation maintaining projector image.
Dustproof structure for projector of the present invention, described fair water fin 14 is in the setting of described rotating shaft 126 lower edge, the air-flow that can produce in order to the rotation guiding along with described rotating shaft 126 below described rotating shaft 126, described air-flow is made to avoid or cross described sensor 162, thus the dust of entrained with can not rest on described sensor 162 in described air-flow, also there is the effect on clean described sensor 162 surface simultaneously, reach the effective dust reduction capability of described sensor 162.
In addition, those skilled in the art also can do other change in spirit of the present invention, and certainly, these changes done according to the present invention's spirit, all should be included within the present invention's scope required for protection.
Claims (10)
1. a dustproof structure for projector, it comprises a color block module, a fair water fin and a circuit board, described color block module has a motor and an autochromatic plate, described motor drives described autochromatic plate to rotate with a rotating shaft, described fair water fin is arranged on described circuit board, described fair water fin has a hole, a dust removal port and a dust collecting trough, and described dust removal port and described dust collecting trough are positioned at the both sides of described hole, described dust removal port is positioned at the lateral margin of described rotating shaft, described dust collecting trough is positioned at the lower edge of described rotating shaft, described circuit board has a sensor, described sensor is positioned at the hole of described fair water fin.
2. dustproof structure for projector as claimed in claim 1, is characterized in that: described autochromatic plate is combined by several colored filter to form.
3. dustproof structure for projector as claimed in claim 1, it is characterized in that: the upper surface of described fair water fin is a guiding face, described guiding face facings the outer edge surface of described rotating shaft, forms one and guide runner between the outer edge surface of described guiding face and described rotating shaft.
4. dustproof structure for projector as claimed in claim 3, it is characterized in that: described guiding face includes an arcwall face and a plane, described plane is positioned at the lower edge of described rotating shaft, and described arcwall face is upwards extended by one end of described plane and is positioned at the lateral margin of described rotating shaft.
5. dustproof structure for projector as claimed in claim 4, is characterized in that: the described plane of described arcwall face and described plane joining place arranges described hole, described arcwall face arranges described dust removal port.
6. dustproof structure for projector as claimed in claim 5, is characterized in that: described dust removal port is positioned at the tangent position at described rotating shaft edge.
7. dustproof structure for projector as claimed in claim 4, is characterized in that: described plane arranges described dust collecting trough, and the sidewall of described dust collecting trough rear end is higher than the surface of described plane.
8. dustproof structure for projector as claimed in claim 1, it is characterized in that: the described sensor in described hole is positioned at the below of described rotating shaft, described sensor end face is lower than the surface of described hole.
9. dustproof structure for projector as claimed in claim 1, it is characterized in that: the material of described fair water fin is plastics, described plastics are transparent polycarbonate (PC, Polycarbonate) material.
10. dustproof structure for projector as claimed in claim 1, is characterized in that: described fair water fin binds with ultraviolet light UV (Ultraviolet Rays) glue and described circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110378333.4A CN103135325B (en) | 2011-11-24 | 2011-11-24 | Dustproof structure for projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110378333.4A CN103135325B (en) | 2011-11-24 | 2011-11-24 | Dustproof structure for projector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103135325A CN103135325A (en) | 2013-06-05 |
| CN103135325B true CN103135325B (en) | 2015-07-29 |
Family
ID=48495370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110378333.4A Expired - Fee Related CN103135325B (en) | 2011-11-24 | 2011-11-24 | Dustproof structure for projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103135325B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267563B (en) * | 2014-09-22 | 2016-10-05 | 苏州佳世达光电有限公司 | Scialyscope and colour wheel module thereof |
| US11753999B2 (en) | 2021-06-17 | 2023-09-12 | General Electric Company | Gas turbine sensor assembly and associated shutter mechanism |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2812047Y (en) * | 2005-03-31 | 2006-08-30 | 联想(北京)有限公司 | Dust-proof protector for color wheel of projector |
| CN101311814A (en) * | 2007-05-21 | 2008-11-26 | 富士施乐株式会社 | Image projection device |
| CN102096165A (en) * | 2010-12-21 | 2011-06-15 | 明基电通有限公司 | Color wheel motor, color wheel module and projection device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005002197A2 (en) * | 2003-06-02 | 2005-01-06 | Infocus Corporation | Modular keypad assembly |
-
2011
- 2011-11-24 CN CN201110378333.4A patent/CN103135325B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2812047Y (en) * | 2005-03-31 | 2006-08-30 | 联想(北京)有限公司 | Dust-proof protector for color wheel of projector |
| CN101311814A (en) * | 2007-05-21 | 2008-11-26 | 富士施乐株式会社 | Image projection device |
| CN102096165A (en) * | 2010-12-21 | 2011-06-15 | 明基电通有限公司 | Color wheel motor, color wheel module and projection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103135325A (en) | 2013-06-05 |
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Granted publication date: 20150729 Termination date: 20161124 |