CN100552530C - Projection arrangement - Google Patents
Projection arrangement Download PDFInfo
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- CN100552530C CN100552530C CNB2006101080973A CN200610108097A CN100552530C CN 100552530 C CN100552530 C CN 100552530C CN B2006101080973 A CNB2006101080973 A CN B2006101080973A CN 200610108097 A CN200610108097 A CN 200610108097A CN 100552530 C CN100552530 C CN 100552530C
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- lamp source
- centrifugal fan
- projection arrangement
- axial flow
- housing
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Abstract
The present invention discloses a kind of projection arrangement, and it comprises a housing and the lamp source, an imaging system, a light engine, one first centrifugal fan and the axial flow fan that are disposed in this housing.Housing has a top, a bottom and is connected in a plurality of sidewalls between the top and bottom, and is provided with an air outlet on housing.The lamp source is positioned at by the air outlet, and light engine is disposed between imaging system and the lamp source.First centrifugal fan is disposed at the end away from air outlet, and the exhausr port of first centrifugal fan is towards the lamp source.Axial flow fan then is disposed at the side that the lamp source is provided with first centrifugal fan, and the lamp source is between air outlet and axial flow fan.The exhausr port of this axial flow fan is towards the lamp source, and the air entry of the air entry of axial flow fan and first centrifugal fan is adjacent.So that this projection arrangement not only radiating effect is preferable, but also avoid its size to become big and improve its noise etc.
Description
Technical field
The present invention relates to a kind of projection arrangement, particularly relate to the preferable projection arrangement of a kind of radiating effect.
Background technology
Fig. 1 is the structural representation of existing projection arrangement.Please refer to Fig. 1, existing projection arrangement 100 comprises a housing 110 and the lamp source 120, an imaging system 130, a light engine 140, a power supply unit 150, a centrifugal fan 160 and the axial flow fan 170 that are disposed in this housing 110.Housing 110 has top (not illustrating), bottom 111 and is connected in a plurality of sidewall 112a, 112b, 112c, 112d between the top and bottom 111.Wherein, the corner that sidewall 112a and sidewall 112b join is provided with an air outlet 180, and lamp source 120 is to be disposed at air outlet 180 sides.Imaging system 130 is disposed at the corner that sidewall 112c and sidewall 112a join.Light engine 140 is disposed between imaging system 130 and the lamp source 120.Power supply unit 150 is disposed at the corner that sidewall 112c and sidewall 112d join.In addition, it is other that centrifugal fan 160 is disposed at light engine 140, and between sidewall 112d and light engine 140.It is other that axial flow fan 170 is disposed at lamp source 120, and between sidewall 112d and lamp source 120.In addition, be provided with an air intake vent 190 among the sidewall 112c.
Above-mentioned centrifugal fan 160 has an exhausr port 162 and an air entry 164, wherein exhausr port 162 be towards the lamp source 120 with sidewall 112b, and air entry 164 is towards light engine 140 and sidewall 112a.In addition, axial flow fan 170 has an exhausr port 172 and an air entry 174, wherein exhausr port 172 be towards the lamp source 120 with sidewall 112a, and air entry 174 is towards sidewall 112d.
Generally speaking, projection arrangement 100 is luminous via the lamp source 120 that power supply unit 150 provides electric power to order about.The light that send in lamp source 120 is projected to a screen (not illustrating) to present image via light engine 140 with imaging system 130 again.Wherein, during owing to projection arrangement 100 runnings, lamp source 120 can produce high temperature, so need help 120 heat radiations of lamp source by centrifugal fan 160 and axial flow fan 170.In the prior art, extraneous gas is to be flow in the projection arrangement 100 by air intake vent 190, and wherein the gas through power supply unit 150 can absorb the heat that power supply unit 150 produces, and reduces the temperature of power supply unit 150.Then, axial flow fan 170 can suck the gas of this part from air entry 174, and discharges from exhausr port 172.The gas that axial flow fan 170 is discharged will flow out projection arrangement 100 from air outlet 180 through lamp source 120, and the part heat that so lamp source 120 can be produced is discharged outside the projection arrangement 100.On the other hand, the air entry 164 of centrifugal fan 160 can suck through the gas of imaging system 130 with light engine 140, discharges from exhausr port 162 again.The gas that centrifugal fan 160 is discharged will flow out projection arrangement 100 from air outlet 180 through lamp source 120, discharge outside the projection arrangement 100 with the part heat that lamp source 120 is produced.
Along with the performance of projection arrangement 100 constantly promotes, it consumes energy also along with increase.For instance, for the image of exhibit high brilliance, need to increase the power in lamp source 120, to improve luminosity, but the heat that makes lamp source 120 and power supply unit 150 be produced also and then improves, and causes cooling mechanism originally can't effectively reduce projection arrangement 100 temperature inside.Therefore, the axial flow fan that axial flow fan 170 need be changed into high rotating speed or large-size originally improves radiating effect.Yet high-revolving axial flow fan can cause serious noise problem, and large-sized axial flow fan can increase the volume of projection arrangement 100.
Fig. 2 is the structural representation of existing another kind of projection arrangement.Please refer to Fig. 2, projection arrangement 100 ' and above-mentioned projection arrangement 100 differences are to be provided with another air outlet 182 among the sidewall 112c of projection arrangement 100 ', and the air outlet 182 other axial flow fans 175 that are provided with.Though this axial flow fan 175 can improve the flow of projection arrangement 100 ' internal gas, but because it mainly is in order to discharging from exhausr port 182 through the portion gas of power supply unit 150, so can only reduce the temperature of power supply unit 150, and can do nothing to help 120 heat radiations of lamp source.
Summary of the invention
The object of the present invention is to provide a kind of projection arrangement, it has preferable radiating effect.
In order to reach above-mentioned or other purpose, the present invention proposes a kind of projection arrangement, and it comprises a housing and the lamp source, an imaging system, a light engine, one first centrifugal fan and the axial flow fan that are disposed in this housing.Housing has a top, a bottom and is connected in a plurality of sidewalls between the top and bottom, and is provided with an air outlet on housing.The lamp source is to be positioned at by the air outlet, and light engine is disposed between imaging system and the lamp source.First centrifugal fan is disposed at the end away from air outlet, and the exhausr port of first centrifugal fan is towards the lamp source.Axial flow fan then is disposed at the side that the lamp source is provided with first centrifugal fan, and the lamp source is between air outlet and axial flow fan.The exhausr port of this axial flow fan is towards the lamp source, and the air entry of the air entry of axial flow fan and first centrifugal fan is adjacent.Improve the gas flow of lamp source region by first centrifugal fan, second centrifugal fan and axial flow fan, so the heat that can effectively the lamp source be produced is discharged outside the projection arrangement, to reach the effect of heat radiation.
For above and other objects of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.
Description of drawings
Fig. 1 is the structural representation of existing projection arrangement;
Fig. 2 is the structural representation of existing another kind of projection arrangement;
Fig. 3 is the synoptic diagram of the projection arrangement of one embodiment of the invention;
Fig. 4 is the stereographic map of the projection arrangement of another embodiment of the present invention;
Fig. 5 is the synoptic diagram of the projection arrangement of Fig. 4;
Fig. 6 is the synoptic diagram of the projection arrangement of further embodiment of this invention.
The main element symbol description:
100,100 ': projection arrangement
110: housing
111: the bottom
112a, 112b, 112c, 112d: sidewall
120: the lamp source
130: imaging system
140: light engine
150: power supply unit
160: centrifugal fan
162,172: exhausr port
164,174: air entry
170,175: axial flow fan
180,182: air outlet
190: air intake vent
200,200 ': projection arrangement
202: signal I/O hole
210: housing
212: the bottom
214a: the first side wall
214b: second sidewall
214c: the 3rd sidewall
214d: the 4th sidewall
220: the lamp source
221: reflex housing
222: wick
230: imaging system
240: light engine
250: the first centrifugal fans
252,262,272: exhausr port
254,264,273: air entry
260: the second centrifugal fans
270: axial flow fan
280: air outlet
285: air intake vent
290: power supply unit
295: airflow duct
Embodiment
Fig. 3 is the synoptic diagram of the projection arrangement of one embodiment of the invention.Please refer to Fig. 3, the projection arrangement 200 of present embodiment comprises housing 210, lamp source 220, imaging system 230, light engine 240, first centrifugal fan 250 and an axial flow fan 270.Housing 210 has a top (not illustrating), a bottom 212 and is connected in a plurality of sidewalls between the top and bottom 212, as the first side wall 214a, the second sidewall 214b, the 3rd sidewall 214c and the 4th sidewall 214d.Wherein, the first side wall 214a is adjacent with the second sidewall 214b, and is provided with an air outlet 280 in the corner that the first side wall 214a and the second sidewall 214b join, and this air outlet 280 can be made up of many apertures.In addition, 220 in lamp source is disposed in the housing 210, and it is other to be positioned at air outlet 280, and lamp source 220 comprises that a reflex housing 221 and is located at the wick 222 in the reflex housing 221, and imaging system 230 is disposed in the housing 210, and is positioned at by the first side wall 214a.Light engine 240 is disposed between imaging system 230 and the lamp source 220, and first centrifugal fan 250 is disposed at the end of the second sidewall 214b away from air outlet 280, and the exhausr port 252 of first centrifugal fan 250 be towards the lamp source 220 with the first side wall 214a.It is other that axial flow fan 270 is disposed at lamp source 220, and lamp source 220 is between the first side wall 214a and axial flow fan 270, and the exhausr port 272 of axial flow fan 270 is towards the lamp source 220 and the first side wall 214a.
In the above-mentioned projection arrangement 200, for example be provided with an air intake vent 285 among the 3rd sidewall 214c relative with the second sidewall 214b, it can be made up of a plurality of aperture.Imaging system 230 comprises a projection lens, its contiguous the 3rd sidewall 214c, and the first side wall 214a exposes the part projection lens.In addition, projection arrangement 200 more comprises a power supply unit 290, and it is disposed at by the 3rd sidewall 214c, and the air entry 254 of first centrifugal fan 250 is towards power supply unit 290.For example be provided with a plurality of signal I/O hole 202 among the 4th sidewall 214d relative, to connect other video and audio product with the first side wall 214a.
The projection arrangement 200 of present embodiment is to utilize first centrifugal fan 250 to dispel the heat with axial flow fan 270, to reduce projection arrangement 200 temperature inside.Specifically, Wai Jie gas can flow in the projection arrangement 200 from the air intake vent 285 of the 3rd sidewall 214c.Wherein, the gas of a part can be through imaging system 230 and flow to light engine 240, and then through behind the inside of the reflex housing 221 in lamp source 220 and flow out projection arrangements 200 from air outlet 280, discharges outside the projection arrangement 200 with the heat that lamp source 220 is produced.
On the other hand, from the portion gas meeting elder generation process power supply unit 290 that air intake vent 285 flows into, thus can dispel the heat to power supply unit 290, to reduce the temperature of power supply unit 290.Afterwards, first centrifugal fan 250 can suck the gas of this part with axial flow fan 270 from air entry 254,273, and discharge from exhausr port 252,272 respectively, and behind the outside of the reflex housing 221 in lamp source 220, can be flowed out projection arrangement 200 from air outlet 280 by the gas that first centrifugal fan 250 and axial flow fan 270 are discharged.Therefore wherein, though gas stream temperature behind power supply unit 290 can rise, compared to the temperature in lamp source 220, the temperature of the gas of this part is still lower, and first centrifugal fan 250 and axial flow fan 270 gas of being discharged still can be used as the heat radiation gas in lamp source 220.
Since first centrifugal fan 250 of projection arrangement 200 with the exhausr port 252,272 of axial flow fan 270 all towards lamp source 220 and the zone around the lamp source 220, be compared to existing projection arrangement 100,100 ' (as Fig. 1 and shown in Figure 2) only the exhausr port 162,172 of centrifugal fan 160 and axial flow fan 170 towards lamp source 120, the projection arrangement 200 of present embodiment can improve the flow in gas flowing through lamps source 220, therefore can more effectively reduce lamp source 220 and temperature on every side thereof, to meet the safety requirement.In addition, because the noise that is produced during axial flow fan 270 runnings is higher than centrifugal fan 160, be compared to the projection arrangement 100 ' of the two axial flow fans 170,175 of available technology adopting, the projection arrangement 200 of present embodiment is because of only adopting an axial flow fan 270, so can improve noise problem.
Fig. 4 is the stereographic map of the projection arrangement of another embodiment of the present invention, and Fig. 5 is the synoptic diagram of the projection arrangement of Fig. 4.Please refer to Fig. 4 and Fig. 5, the projection arrangement 200 ' of present embodiment is similar to the projection arrangement of Fig. 3 200, and difference is that the projection arrangement 200 ' of present embodiment more comprises one second centrifugal fan 260.It is other that this second centrifugal fan 260 is disposed at light engine 240, and the exhausr port 262 of second centrifugal fan 260 is towards the lamp source 220 and the second sidewall 214b, and the air entry 264 of second centrifugal fan 260 is towards light engine 240.
In projection arrangement 200 ', the part of the ambient atmos that is flowed into by the air intake vent 285 of the 3rd sidewall 214c can and flow to light engine 240 through imaging system 230, and is sucked from air entry 264 by second centrifugal fan 260.The gas that second centrifugal fan 260 can suck is discharged from exhausr port 262, and the gas that is discharged from will be through the reflex housing 221 in lamp source 220 and from air outlet 280 outflow projection arrangements 200.In other words, present embodiment is except coming by first centrifugal fan 250 and axial flow fan 270 lamp source 220 dispelled the heat, the forced convertion that more utilizes second centrifugal fan 260 to be caused makes more ambient atmos blow to lamp source 220, discharges outside the projection arrangement 200 ' with the heat that lamp source 220 is produced.
Hold above-mentioned because the configuration frame of axial flow fan 270, first centrifugal fan 250 and second centrifugal fan 260 of present embodiment can improve the flow in gas flowing through lamps source 220, so do not need to improve in addition the rotating speed of axial flow fan 270 or adopt larger-size axial flow fan 270.Thus, can avoid increasing the noise problem that produces or making the volume of whole projection arrangement 200 become greatly greatly because of the size of axial flow fan 270 becomes because of the rotating speed of axial flow fan 270.
Fig. 6 is the synoptic diagram of the projection arrangement of further embodiment of this invention.Please refer to Fig. 6, the projection arrangement 200 of present embodiment " similar to the projection arrangement 200 ' that illustrated among Fig. 5, difference is in the projection arrangement 200 in present embodiment " more comprise an airflow duct 295.This airflow duct 295 is disposed at by the second sidewall 214b, and between the lamp source 220 and first centrifugal fan 250.In addition, airflow duct 295 is connected with first centrifugal fan 250, and communicates with the exhausr port 252 of first centrifugal fan 250.
Above-mentioned airflow duct 295 can be used as the effect of the exhausr port 252 that extends first centrifugal fan 250.Can be by this airflow duct 295 so that the more concentrated zone that blows to lamp source 220 of gas that first centrifugal fan 250 is discharged to adjust the distribution of air port delivery temperature, makes more homogenising of Temperature Distribution.And the gas of discharging can flow out outside the housing 210, so the hot type that can more efficiently lamp source 220 be produced outside the housing 210 from exhausr port 280.Therefore, the projection arrangement 200 of present embodiment " have a better radiating effect.
In sum, projection arrangement of the present invention has following advantage at least:
Because the exhausr port of first centrifugal fan, second centrifugal fan and axial flow fan is all towards lamp source and air outlet,, reducing lamp source and temperature on every side thereof effectively, and then meet the safety requirement so can increase the gas flow of lamp source region.It is 95 degree that general safety requires, and the present invention can reduce the temperature to 87 degree at least, and is lifted out the homogenising of draught temperature.
The present invention need not improve the rotating speed of axial flow fan or adopt larger-size axial flow fan, the noise problem that therefore can avoid rotating speed because of axial flow fan to improve producing or make the size of whole projection arrangement become greatly greatly because of the size of axial flow fan becomes.
Be compared to the framework of the two axial flow fans of available technology adopting, projection arrangement of the present invention only has an axial flow fan, therefore can improve noise problem.
Though disclosed the present invention in conjunction with above preferred embodiment; yet it is not in order to limiting the present invention, anyly is familiar with this operator, without departing from the spirit and scope of the present invention; can do some change and retouching, thus protection scope of the present invention should with enclose claim was defined is as the criterion.
Claims (9)
1. projection arrangement, comprise: a housing (210), a lamp source (220), an imaging system (230), a light engine (240), one first centrifugal fan (250) and an axial flow fan (270), it is characterized in that, this housing (210) have a top, a bottom (212) and be connected in this top and this bottom (212) between a plurality of sidewalls, and this housing (210) is provided with an air outlet (280); This lamp source (220) is disposed in this housing (210), and it is other to be positioned at this air outlet (280); This imaging system (230) is disposed in this housing (210); This light engine (240) is disposed in this housing (210) and between this imaging system (230) and this lamp source (220); This first centrifugal fan (250) is disposed in this housing (210) and away from the end of this air outlet (280), the exhausr port (252) of this first centrifugal fan (250) is towards this lamp source (220); This axial flow fan (270) is disposed in this housing (210) and is provided with a side of this first centrifugal fan (250) in this lamp source (220), and this lamp source (220) is positioned between this air outlet (280) and this axial flow fan (270), wherein the exhausr port (272) of this axial flow fan (270) is towards this lamp source (220), and the air entry (273) of this axial flow fan (270) is adjacent with the air entry (254) of this first centrifugal fan (250).
2. projection arrangement as claimed in claim 1, wherein the first side wall (214a) in those sidewalls is adjacent with one second sidewall (214b), and this air outlet (280) is arranged on the corner that this first side wall (214a) and this second sidewall (214b) join.
3. projection arrangement as claimed in claim 2, this first centrifugal fan (250) wherein, contiguous this second sidewall (214b) configuration, and the exhausr port (272) of the exhausr port (252) of this first centrifugal fan (250) and this axial flow fan (270) is towards this first side wall (214a).
4. projection arrangement as claimed in claim 2, wherein one the 3rd sidewall (214c) in those sidewalls is relative with this second sidewall (214b), and the 3rd sidewall (214c) is provided with an air intake vent (285).
5. projection arrangement as claimed in claim 4, wherein this imaging system (230) is close to the 3rd sidewall (214c) and this first side wall (214a), and this first side wall (214a) exposes part this imaging system (230).
6. projection arrangement as claimed in claim 4 more comprises a power supply unit (290), is disposed at the 3rd sidewall (214c) side; And one second centrifugal fan (260), the air entry (264) of this second centrifugal fan (260) and the air entry (273) of this axial flow fan (270) are towards this power supply unit (290), will in this air intake vent (285) flow into housing (210) and through the gas behind this power supply unit (290), sucking and discharge with the exhausr port (272) of this axial flow fan (270) from the exhausr port (262) of this second centrifugal fan (260) respectively from those air entries (264,273).
7. projection arrangement as claimed in claim 1 comprises that more an airflow duct (295) one ends are connected in the exhausr port (252) of this first centrifugal fan (250), and the other end is towards this air outlet (280).
8. projection arrangement as claimed in claim 1, it more comprises one second centrifugal fan (260), it is interior and other in this light engine (240) to be disposed at this housing (210), the exhausr port (262) of this second centrifugal fan (260) is towards this lamp source (220), and the air entry (264) of this second centrifugal fan (260) is towards this light engine (240).
9. projection arrangement as claimed in claim 8, wherein this lamp source (220) more comprises a reflex housing (221) and and is located at a wick (222) in this reflex housing (221), the exhausr port of this axial flow fan (270) and this first centrifugal fan (250) (272,252) is towards the outside of this reflex housing (221), and the exhausr port (262) of this second centrifugal fan (260) is the inside towards this reflex housing (221).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101080973A CN100552530C (en) | 2006-07-27 | 2006-07-27 | Projection arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101080973A CN100552530C (en) | 2006-07-27 | 2006-07-27 | Projection arrangement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101114109A CN101114109A (en) | 2008-01-30 |
| CN100552530C true CN100552530C (en) | 2009-10-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101080973A Active CN100552530C (en) | 2006-07-27 | 2006-07-27 | Projection arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100552530C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9779780B2 (en) | 2010-06-17 | 2017-10-03 | Teradyne, Inc. | Damping vibrations within storage device testing systems |
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2006
- 2006-07-27 CN CNB2006101080973A patent/CN100552530C/en active Active
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| Publication number | Publication date |
|---|---|
| CN101114109A (en) | 2008-01-30 |
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