CN103135325A - Dustproof structure for projector - Google Patents
Dustproof structure for projector Download PDFInfo
- Publication number
- CN103135325A CN103135325A CN2011103783334A CN201110378333A CN103135325A CN 103135325 A CN103135325 A CN 103135325A CN 2011103783334 A CN2011103783334 A CN 2011103783334A CN 201110378333 A CN201110378333 A CN 201110378333A CN 103135325 A CN103135325 A CN 103135325A
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- CN
- China
- Prior art keywords
- dustproof structure
- rotating shaft
- projector
- hole
- fair water
- Prior art date
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides a dustproof structure for a projector. The dustproof structure comprises a color wheel module, a deflector and a circuit board. The color wheel module is provided with a motor and a color board. The motor drives the color board to rotate through a spindle. The deflector is arranged on the circuit board and at the lower edge of the spindle and provided with a hole, a dusting port and a dust collection groove, wherein the dusting port is disposed at the front end of the hole, and the dust collection groove is disposed at the rear end of the hole. The circuit board is provided with a sensor which is arranged in the hole of the deflector. According to the dustproof structure, the sensor can be effectively prevented from being polluted through the dusting port and the dust collection groove on the deflector.
Description
Technical field
The present invention relates to a kind of projector dustproof structure, espespecially a kind of colour wheel has the projector dustproof structure 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 that has is to produce high heat.High heat like this must be carried out by heat abstractor the eliminating of heat, otherwise will affect the normal operation of this projector.The heat abstractor of present projector, several cooling fans of mutual collocation normally are set on the casing of projector, use the cold air outside casing is sent in casing described light source is dispelled the heat, heat energy is discharged outside described casing to keep the normal operation of projector.But described light source place has the color block module setting of controlling projection colors of image, 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, with so that described transmitter transmits and accepted the signal of reflection by described receiver, with the situation of the described colour wheel of sensing rotation, by to the control of described colour wheel rotary state so that the colors of image of projection is stable.When described light source dispels the heat with outside air, the dust of carrying secretly in described air will little by little be deposited on described sensor, make the accurately rotary state of sensing colour wheel of described sensor, thereby the colors of image of described projection will produce aberration, severe patient can make colour wheel rotation uncontrollable, causes the projector can't normal operation.Therefore, projector more needs have further dustproof the setting on the sensor that color block module is arranged in pairs or groups except dustproof conduct will be arranged the casing air amount.
Summary of the invention
In view of this, be necessary to provide a kind of projector dustproof structure that to be convenient to assemble and can effectively prevent dust fall.
The invention provides a kind of projector dustproof structure, 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 rotation with a rotating shaft.Described fair water fin is arranged on described circuit board, and is positioned at the lower edge of described rotating shaft.A hole that has on described fair water fin, a dedusting mouth and a dust collecting trough, described dedusting mouth is positioned at the front end of described hole, and the rear end of described hole is described dust collecting trough.Described circuit board has a sensor, and described sensor is positioned at the hole of described fair water fin.
Compare prior art, projector dustproof structure of the present invention, by the described fair water fin that arranges between described motor lower edge and described circuit board, make the air-flow that described motor operation produces to have the flow direction of setting, described setting air flow energy is discharged by the described dedusting mouth of described fair water fin, and get rid of the dust of carrying secretly in most of air-flow, the flow through air-flow of described circuit board of part, to make dust cross described sensor is detained in described dust collecting trough, thereby can prevent effectively that dust from resting on described sensor, have good dust-proof effect.
Description of drawings
Fig. 1 is the embodiment schematic diagram of projector dustproof structure of the present invention.
Fig. 2 is the fair water fin of projector dustproof structure of Fig. 1 and the combination schematic diagram of circuit board.
Fig. 3 is the III-III cut-open view of the projector dustproof structure of Fig. 1.
The main element symbol description
| |
10 |
| |
12 |
| |
122 |
| |
124 |
| |
126 |
| |
14 |
| |
142 |
| Arcwall |
1422 |
| The |
1424 |
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144 |
| The dedusting |
146 |
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148 |
| |
1482 |
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16 |
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162 |
| The guiding |
20 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Below in conjunction with accompanying drawing, the present invention being done one specifically introduces.
See also shown in Figure 1ly, be the embodiment schematic diagram of projector dustproof structure of the present invention, described dustproof construction 10 comprises a color block module 12, a 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 Speeds with a rotating shaft 126.Described autochromatic plate 124 is to be constituted by several colored filters (not indicating in figure).For example, consist of described autochromatic plate 124 by the optical filter combination such as red, blue and green, make described autochromatic plate 124 can carry out to the white light of described light source of projector the effect of color separation.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 to be a guiding face 142, and described guiding face 142 is towards the outer edge surface of described rotating shaft 126, makes between the outer edge surface of described guiding face 142 and described rotating shaft 126 and forms a guiding runner 20.Please consult again shown in Figure 2, be the fair water fin of Fig. 1 projector dustproof structure and the combination schematic diagram of circuit board, a hole 144 that has on described fair water fin 14, a dedusting mouth 146 and a dust collecting trough 148, described dedusting mouth 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 is at the front end on described plane 1424 and extend upward, make described arcwall face 1422 be positioned at the lateral margin of described rotating shaft 126, described plane 1424 is at the lower edge of described rotating shaft 126 and extend back.On the described plane 1424 of described arcwall face 1422 and described plane 1424 joining places, described hole 144 is set, described dedusting mouth 146 is set on the described arcwall face 1422 of described hole 144 front ends, and on the described plane 1424 of described hole 144 rear ends, described dust collecting trough 148 is set.The material of described fair water fin 14 is to be plastics, and described plastics are transparent polycarbonate (PC, Polycarbonate) material.Described fair water fin 14 is to bind with ultraviolet light UV (Ultraviolet Rays) glue and described circuit board 16.Having a sensor 162 on described circuit board 16 arranges, 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 the operational situation of the described rotating shaft 126 of sensing, and the information that senses is sent to the control device of projector, make described control device can control the rotation color separation effect of described autochromatic plate 124, thereby keep the color of projector's projection image.Described sensor 162 is operational situations of the described rotating shaft 126 of cooperation sensing of signal projector utilizing that it has and a signal receiver (indicating in figure), if the end face of described sensor 162 is covered by dust, thereby make described signal projector or described signal receiver produce the abnormal of signal, will thus the rotation of uncontrollable described autochromatic plate 124, and making the colors of image of projector's projection abnormal, serious words may make projector can't normally throw the running of image.Therefore, be necessary in fact conduct that described sensor 162 is prevented dust, to safeguard the image projection running of projector.
See also shown in Figure 3, fair water fin 14 of the present invention is in the setting of described rotating shaft 126 lower edges, make the described guiding runner 20 that forms 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 Speeds produce, can be at one air-flow of the interior formation of described guiding runner 20.Described air-flow is along with the rotation of described rotating shaft 126 flows to described plane 1424 by the described arcwall face 1422 of described guiding face 142.Described arcwall face 1422 is positioned at the lateral margin of described rotating shaft 126, make described dedusting mouth 146 be positioned at the tangent position at described rotating shaft 126 edges, when the described air-flow of the interior generation of described guiding runner 20, the tangential direction that described air-flow will follow described rotating shaft 126 flows to described dedusting mouth 146, thereby the air-flow in most of described guiding runner 20 can be discharged by described dedusting mouth 146, discharge most air-flow by described dedusting mouth 146, just can get rid of most of dust of carrying secretly in described air-flow.The undischarged fraction air-flow of described dedusting mouth 146 can continue to flow to the rear end on described plane 1424, the stream pressure of described fraction air-flow, and the described hole 144 that can make described fraction air-flow cross easily described plane 1424 flows to described dust collecting trough 148.Described sensor 162 end faces in described hole 144 are lower than the surface of described hole 144, cross the dust that the described fraction air-flow on described plane 1424 carries secretly and just can not drop at described sensor 162 end faces.The sidewall 1482 of described dust collecting trough 148 rear ends makes the minority dust of carrying secretly in described fraction air-flow can be stopped and stagnate in the effect of the interior generation control of dust of described dust collecting trough 148 higher than the surface on described plane 1424.Therefore, the dust that the described air-flow of described guiding runner 20 interior generations is carried secretly, most of dust can be discharged by described dedusting mouth 146 along with described air-flow, remaining fraction dust can be along with described air-flow be stagnated in described dust collecting trough 148, plays the described sensors 162 in described hole 144 are had dustproof effect.In addition, the described air-flow that flows through on described plane 1424 has the cleaning action of removing described sensor 162 surface dirt simultaneously, make described sensor 162 can really carry out the rotary state of the described autochromatic plate 124 of its sensing, reach the normal operation of keeping projector's projection image.
Projector dustproof structure of the present invention, described fair water fin 14 is in the setting of described rotating shaft 126 lower edges, can guide the air-flow that produces in order to the rotation along with described rotating shaft 126 below described rotating shaft 126, make described air-flow avoid or cross described sensor 162, thereby the dust of carrying secretly in described air-flow can not rest on described sensor 162, the effect on the described sensor of cleaning 162 surfaces is also arranged simultaneously, reach the effective dust reduction capability of described sensor 162.
In addition, those skilled in the art also can do other variation in spirit of the present invention, and certainly, the variation that these are done according to spirit of the present invention is within all should being included in the present invention's scope required for protection.
Claims (10)
1. projector dustproof structure, 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 rotation with a rotating shaft, described fair water fin is arranged on described circuit board, and be positioned at the lower edge of described rotating shaft, has a hole on described fair water fin, a dedusting mouth and a dust collecting trough, described dedusting mouth is positioned at the front end of described hole, the rear end of described hole is described dust collecting trough, described circuit board has a sensor, described sensor is positioned at the hole of described fair water fin.
2. projector dustproof structure as claimed in claim 1, it is characterized in that: described autochromatic plate is to be constituted by several colored filters.
3. projector dustproof structure as claimed in claim 1, it is characterized in that: the upper surface of described fair water fin is to be a guiding face, described guiding face forms a guiding runner towards the outer edge surface of described rotating shaft between the outer edge surface of described guiding face and described rotating shaft.
4. projector dustproof structure as claimed in claim 3, it is characterized in that: described guiding face includes an arcwall face and a plane, and described arcwall face is at the front end on described plane and extend upward.
5. projector dustproof structure as claimed in claim 4, is characterized in that: on the described plane of described arcwall face and described plane joining place, described hole is set, described dedusting mouth is set on described arcwall face.
6. projector dustproof structure as claimed in claim 5, it is characterized in that: described arcwall face is positioned at the lateral margin of described rotating shaft, and described dedusting mouth is positioned at the tangent position at described rotating shaft edge, and described plane is at the lower edge of described rotating shaft and extend back.
7. projector dustproof structure as claimed in claim 4 is characterized in that: described dust collecting trough is set on described plane, and the sidewall of described dust collecting trough rear end is higher than the surface on described plane.
8. projector dustproof structure as claimed in claim 1 is characterized in that: the described sensor in described hole is positioned at the below of described rotating shaft, and described sensor end face is lower than the surface of described hole.
9. projector dustproof structure as claimed in claim 1, it is characterized in that: the material of described fair water fin is to be plastics, described plastics are transparent polycarbonate (PC, Polycarbonate) material.
10. projector dustproof structure as claimed in claim 1 is characterized in that: described fair water fin is to bind 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 true CN103135325A (en) | 2013-06-05 |
| CN103135325B 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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267563A (en) * | 2014-09-22 | 2015-01-07 | 苏州佳世达光电有限公司 | Projector and color wheel module thereof |
| US11753999B2 (en) | 2021-06-17 | 2023-09-12 | General Electric Company | Gas turbine sensor assembly and associated shutter mechanism |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040263803A1 (en) * | 2003-06-02 | 2004-12-30 | Greg Sample | Modular keypad assembly |
| 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 |
-
2011
- 2011-11-24 CN CN201110378333.4A patent/CN103135325B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040263803A1 (en) * | 2003-06-02 | 2004-12-30 | Greg Sample | Modular keypad assembly |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104267563A (en) * | 2014-09-22 | 2015-01-07 | 苏州佳世达光电有限公司 | Projector and color wheel module thereof |
| CN105911801A (en) * | 2014-09-22 | 2016-08-31 | 苏州佳世达光电有限公司 | Projector and color wheel module thereof |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103135325B (en) | 2015-07-29 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Granted publication date: 20150729 Termination date: 20161124 |