CN101923274A - Light-emitting diode light source type projector device - Google Patents
Light-emitting diode light source type projector device Download PDFInfo
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- CN101923274A CN101923274A CN 201010132637 CN201010132637A CN101923274A CN 101923274 A CN101923274 A CN 101923274A CN 201010132637 CN201010132637 CN 201010132637 CN 201010132637 A CN201010132637 A CN 201010132637A CN 101923274 A CN101923274 A CN 101923274A
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Abstract
The invention provides an LED (Light-Emitting Diode) light source type projector device, which comprises a radiator fan, a light-emitting diode light source, a first radiator, a second radiator and a third radiator, wherein the radiator fan generates air flow, and the air flow passes through a linear flow channel to radiate heat of the projector device; the light-emitting diode light source comprises a first class light source, a second class light source and a third class light source; the first radiator corresponds to the first class light source; the second radiator corresponds to the second class light source, and the third radiator corresponds to the third class light source; and the first radiator, the second radiator and the third radiator form a discrete state and are arranged on the linear flow channel. The projector device adopts single radiator fan which generates air flow, and the air flow passes through the linear flow channel to radiate heat of the first radiator, the second radiator and the third radiator arranged on the linear flow channel, the radiating efficiency can be improved, and the LED light source type projector device can be cooled effectively.
Description
Technical field
The present invention is about a kind of led light source type projector, especially about a kind of led light source type projector with single radiator fan.
Background technology
Existing electronic installation, for example projector, back projection type TV, CD-ROM drive, main frame etc., its inside all must dispose radiator fan and cool off the heat that its operating period produces.
Comparing with traditional projector, is the novel at last product of projector of light source with light emitting diode (LED).The light source of tradition projector has the external form of bulb, and because led light source is different with traditional light source, do not have the external form of bulb, so the heat radiation of system and light source also need have the consideration of the traditional design of differing from.
What for example U.S. patent application case US20070139887 disclosed a single fan, single runner is the projector of light source with the light emitting diode, and its design sees through heat pipe (heat pipe) with a plurality of led light sources and conducts to heat abstractor (heat sink-HS) on the runner.And each coloured light of LED is shared the heat abstractor of an one.In addition, the heat radiation axle fan of this preceding case is to be used for outside the air-flow sucking-off casing.
What for example United States Patent (USP) case US7384151 disclosed a single fan, single annular runner is the projector of light source with the light emitting diode, its design is used a corresponding heat abstractor respectively with each coloured light of LED, and air-flow is R → G → B at the heat radiation order of the heat abstractor of each coloured light correspondence of LED in regular turn.In addition, the heat radiation axle fan of this preceding case is to be used for mode with the air-flow sucking-off, and outside the inner sucking-off casing of casing, but in actual state, the flow resistance on the annular runner is obviously bigger, therefore may cause radiating effect not good with air-flow.
Summary of the invention
Therefore, one of purpose of the present invention is to provide a kind of led light source type projector, particularly about a kind of led light source type projector with single radiator fan, cooling LED light source type projector device effectively.
According to the led light source type projector of a wherein preferred embodiment of the present invention, it comprises radiator fan, LED source, first heating radiator and second heating radiator.This radiator fan produces air communication and crosses line flowing channel, and this projector is dispelled the heat.This LED source comprises first kind light source, the second class light source.First heating radiator connects this first kind light source; Second heating radiator connects this second class light source.Wherein, this first heating radiator and this second heating radiator are mutually in discrete state and are arranged on this line flowing channel.
In a specific embodiment, this projector only has single radiator fan, but the present invention is not as limit.
In a specific embodiment, this LED source also comprises the 3rd class light source, this projector also comprises the 3rd heating radiator, to should the 3rd class light source and be arranged on this line flowing channel, and be mutually in discrete state with this first heating radiator, this second heating radiator.
In a specific embodiment, this first kind light source is a ruddiness, and this second class light source is a green glow, and the 3rd class light source is a blue light, and flow through in regular turn first heating radiator, second heating radiator, the 3rd heating radiator of this air-flow dispels the heat.
In a specific embodiment again, the area of dissipation of this first heating radiator, second heating radiator is identical, and equals between three times to seven times of area of dissipation of the 3rd heating radiator.
In a specific embodiment again, this first heating radiator, second heating radiator, the 3rd heating radiator are prolonging airflow direction to be arranged in regular turn and is settled, and makes the thermal current behind first heating radiator of flowing through can not be baked to second heating radiator.
In a specific embodiment again, this first heating radiator, this second heating radiator, the 3rd heating radiator are arranged in regular turn along this line flowing channel.And this first kind light source is a ruddiness, and this second class light source is a green glow, and the 3rd class light source is a blue light.
In a specific embodiment again, this first kind light source is a ruddiness, and this second class light source is a blue light, and the 3rd class light source is a green glow, and the area of dissipation of this first heating radiator, the 3rd heating radiator is identical, and greater than the area of dissipation of second heating radiator.
In a specific embodiment again, projector further comprises photo-coupler (opticalcoupling), wherein the first side of photo-coupler is close to this line flowing channel, and settle this first kind light source and the second class light source, the 3rd class light source is settled in the second side that is connected with the first side, first kind light source directly is connected with second heating radiator with first heating radiator respectively with the second class light source, and the 3rd class light source sees through heat pipe (heat pipe) and is connected with the 3rd heating radiator.
In another specific embodiment, this first heating radiator, second heating radiator, the 3rd heating radiator are prolonging airflow direction to be arranged and to settle, and also can make the thermal current behind first heating radiator of flowing through can not be baked to second heating radiator.With height, first heating radiator is positioned at the top (perhaps, vice versa) of second heating radiator.The 3rd heating radiator is positioned at the rear of first heating radiator and second heating radiator, and reaches the effect that thermal current behind first heating radiator of flowing through can not be baked to second heating radiator.And preferable mode is the corresponding ruddiness of first heating radiator, the corresponding green glow of second heating radiator, the corresponding blue light of the 3rd heating radiator.
In another specific embodiment, this projector comprises housing, projection lens, air intake vent and air outlet, this housing definition front side, rear side, left side, right side, this air intake vent and this air outlet are respectively adjacent to this left side and this right side is provided with, this radiator fan is placed in contiguous this air intake vent place, enter in this line flowing channel so that this air-flow is sucked, and this projection lens is placed in this place, front side of this housing.
In another specific embodiment, this first kind light source is a white light, and this second class light source is a blue light.
In another specific embodiment, this projector further comprises photo-coupler, wherein the first side of this photo-coupler is close to this line flowing channel, and this first kind light source and this second class light source are settled in this first side, and this first heating radiator and this second heating radiator are arranged in regular turn along this line flowing channel.
In another specific embodiment, this projector further comprises circuit board, is positioned on this line flowing channel and with this first heating radiator and this second heating radiator to arrange side by side.
In another specific embodiment, this projector further comprises photo-coupler, wherein the first side of this photo-coupler is close to this line flowing channel, and this first kind light source is settled in this first side, this second class light source is settled in the second side that is connected with this first side, this first kind light source directly is connected with this first heating radiator, and this second class light source sees through heat pipe and is connected with this second heating radiator.
In another specific embodiment, this projector further comprises circuit board, is positioned on this line flowing channel and with this first heating radiator to arrange side by side.
Compared with prior art, projector of the present invention adopts single radiator fan to produce air communication and crosses line flowing channel, and first heating radiator, second heating radiator, the 3rd heating radiator that is arranged on the line flowing channel dispelled the heat, can improve radiating efficiency, effectively the cooling LED light source type projector device.
Can be about the advantages and spirit of the present invention by following detailed Description Of The Invention and appended graphic being further understood.
Description of drawings
Figure 1 shows that vertical view according to the first preferred embodiment projector of the present invention;
Figure 2 shows that side view, to disclose the relative height difference of three heat abstractor positions according to the second preferred embodiment projector of the present invention;
Fig. 3 A is depicted as the vertical view according to the 3rd preferred embodiment projector of the present invention;
Fig. 3 B is depicted as the side view of Fig. 3 A embodiment projector, with relative altitude position and the area of dissipation that discloses three heat abstractors;
Figure 4 shows that side view, to disclose the another kind arrangement of three heat abstractor positions according to the 4th preferred embodiment projector of the present invention;
Figure 5 shows that vertical view according to the 5th preferred embodiment projector of the present invention.
Embodiment
The invention provides a kind of led light source type projector.Below by according to projector of the invention process example as an illustration, use abundant explanation about feature of the present invention, spirit, advantage and the simplicity of implementing.
See also Fig. 1, Figure 1 shows that vertical view according to the projector 1 of first preferred embodiment of the present invention.As shown in Figure 1, projector 1 according to the present invention comprise housing 10 with and interior first heating radiator (heat sink, or radiator) 11, second heating radiator 13, the 3rd heating radiator 15, LED source 12 (comprise 121,123,125), projection lens (projector lens) 14A, optical module (opticalmodule) 14B, circuit board 16, heat pipe (heat pipe) 17, single radiator fan (fan) 18, photo-coupler (optical coupler) 19.
And this single radiator fan 18 produces air communication and crosses line flowing channel 66, and projector 1 is dispelled the heat.LED source 12 comprises first kind light source 121, the second class light source 123, the 3rd class light source 125.First heating radiator, 11 corresponding first kind light sources 121; Second heating radiator, the 13 corresponding second class light sources 123; The 3rd heating radiator 15 corresponding the 3rd class light sources 125.Wherein, this first heating radiator 11, second heating radiator 13, the 3rd heating radiator 15 are mutually discrete (discrete) state, and are arranged on this line flowing channel 66.Because heat abstractor 11,13,15 can be electrically charged, for fear of the phase mutual interference, so heat abstractor 11,13,15 is separated independent one-tenth discrete state; If light source 121,123,125 uses same heat abstractor to dispel the heat,, will utilize insulating radiation sheet (thermal pad) to prevent conduction, but radiating efficiency can variation for fear of the phase mutual interference.The present invention separates independent one-tenth discrete state with the pairing heat abstractor 11,13,15 of each light source, can improve radiating efficiency, solves the problem of phase mutual interference simultaneously.
The housing 10 of projector 1 has air intake opening 102 and exhaust 104.Air-flow enters in the projector 1 from the air intake opening 102 of housing 10, through line flowing channel 66, discharges from the exhausr port 104 of housing 10 again.
In a specific embodiment, this first kind light source 121 is a ruddiness, and this second class light source 123 is a green glow, and the 3rd class light source 125 is a blue light, and flow through in regular turn first heating radiator 11, second heating radiator 13, the 3rd heating radiator 15 of air-flow dispels the heat.As shown in Figure 1, the reason of this arrangement is a ruddiness when being in high temperature, and optical efficiency can step-down, so are the forefronts that place runner 66 with the pairing heat abstractor 11 of ruddiness; But the present invention is not certain so restriction, if following design can make in ruddiness high temperature luminescence efficiency is improved, can consider that the green glow that thermal value is bigger is arranged on runner 66 forefronts yet.
In a specific embodiment, projector 1 comprises housing 10, projection lens 14A, air intake vent 102 and air outlet 104, this housing definition front side 101, rear side 103, left side 105, right side 107, this air intake vent 102 is respectively adjacent to this left side 105 with this air outlet 104 and is provided with this right side 107, this single radiator fan 18 is to be placed in contiguous these air intake vent 102 places, so that being sucked, housing 10 outer gas streams enter in this line flowing channel 66, and this projection lens 14A is placed in 101 places, front side of housing 10, as shown in Figure 1.
In a specific embodiment, the area of dissipation of this first heating radiator 11, second heating radiator 13 is identical or rough identical, and is at or about between three times to seven times of area of dissipation of the 3rd heating radiator 15.
In a specific embodiment, this first heating radiator 11, second heating radiator 13, the 3rd heating radiator 15 are prolonging airflow direction and are being arranged in regular turn and settle, and make the thermal current behind first heating radiator 11 of flowing through can not be baked to second heating radiator 13, (do not draw among the figure second heating radiator 13, the 3rd heating radiator 15 the heat pipe 17 that links respectively) as shown in Figure 2, Figure 2 shows that side view, to disclose the relative height difference of three heat abstractor positions according to the second preferred embodiment projector of the present invention.With height, second heating radiator 13 is positioned at first heating radiator, 11 tops, and perhaps second heating radiator 13 is positioned at first heating radiator, 11 belows, and reaches the effect that thermal current behind first heating radiator 11 of flowing through can not be baked to second heating radiator 13.
In a specific embodiment, this first heating radiator 11, second heating radiator 13, the 3rd heating radiator 15 are prolonging airflow direction and are being arranged in regular turn and settle, and make the thermal current behind first heating radiator 11 of flowing through can not be baked to second heating radiator 13, wherein this first kind light source 121 is a ruddiness, this second class light source is a green glow 123, the 3rd class light source 125 is a blue light, as shown in Figure 2.
In a specific embodiment, this circuit board 16 is to be positioned on this line flowing channel 66.So, heat that numerous assembly is given birth to can be taken away by the air-flow on the line flowing channel 66 of flowing through easily on the circuit board 16.Do not exceed with circuit board, other heat generating component also can be arranged on the line flowing channel 66.
In a specific embodiment, this first kind light source 121 is a ruddiness, and this second class light source 123 is a blue light, and the 3rd class light source 125 is a green glow, the area of dissipation of this first heating radiator 11, the 3rd heating radiator 15 is identical or rough identical, and greater than the area of dissipation of second heating radiator 13.
In a specific embodiment, wherein the first side of photo-coupler 19 is close to this line flowing channel 66, and settle this first kind light source 121 and the second class light source 123, the 3rd class light source 125 is settled in the second side that is connected with the first side, first kind light source 121 directly is connected with second heating radiator 13 with first heating radiator 11 respectively with the second class light source 123, and the 3rd class light source 125 sees through heat pipe 17 and is connected with the 3rd heating radiator 15.As shown in Figure 1.
See also Fig. 3 A and Fig. 3 B, Fig. 3 A is depicted as the vertical view according to the 3rd preferred embodiment projector 1 of the present invention, and Fig. 3 B is depicted as the side view of Fig. 3 A embodiment projector 1, with relative altitude position and the area of dissipation that discloses three heat abstractors.This first kind light source 121 is a ruddiness, this second class light source 123 is a blue light, the 3rd class light source 125 is a green glow, this first heating radiator 11, the area of dissipation of the 3rd heating radiator 15 is identical or rough identical, and area of dissipation greater than second heating radiator 13, contiguous this line flowing channel 66 in the first side of photo-coupler 19, and settle this first kind light source 11 and the second class light source 123, the 3rd class light source 125 is settled in the second side that is connected with the first side, first kind light source 121 directly is connected with second heating radiator 13 with first heating radiator 11 respectively with the second class light source 123, and the 3rd class light source 125 sees through heat pipe 17 and is connected with the 3rd heating radiator 15.By Fig. 3 A, Fig. 3 B as can be known, the area of dissipation of this first heating radiator 11, the 3rd heating radiator 15 is identical or rough identical, and greater than the area of dissipation (not drawing the heat pipe 17 that the 3rd heating radiator 15 is linked among Fig. 3 B) of second heating radiator 13.Present embodiment is to consider that blue light (123) temperature is minimum, and radiating requirements is relatively low, so the volume of green glow (125), the pairing heat abstractor 11,15 of ruddiness (121) is put into maximum, can reach best radiating effect.
See also Fig. 4, Figure 4 shows that side view, to disclose the another kind arrangement of three heat abstractor positions according to the 4th preferred embodiment projector of the present invention.In this specific embodiment, this first heating radiator 11, second heating radiator 13, the 3rd heating radiator 15 are prolonging airflow direction and are being arranged and settle, also can make the thermal current behind first heating radiator 11 of flowing through can not be baked to second heating radiator 13, as shown in Figure 4 (do not draw among the figure first heating radiator 11, second heating radiator 13, the 3rd heating radiator 15 the heat pipe 17 that links respectively).With height, first heating radiator 11 is positioned at the top (perhaps, vice versa) of second heating radiator 13.The 3rd heating radiator 15 is positioned at the rear of first heating radiator 11 and second heating radiator 13, and reaches the effect that thermal current behind first heating radiator 11 of flowing through can not be baked to second heating radiator 13.And preferable mode is first heating radiator, 11 corresponding ruddiness (121), second heating radiator, 13 corresponding green glows (123), the 3rd heating radiator 15 corresponding blue lights (125).
See also Fig. 5, Figure 5 shows that vertical view according to the 5th preferred embodiment projector of the present invention.In this specific embodiment, adopt two first heat abstractor, second heat abstractors that led light source is corresponding with two.
One of embodiment is, wherein this first kind light source is a white light LEDs 521, and this second class light source is a blue-ray LED 525.At this moment, have optical filter 522 in the photo-coupler (optical coupling) 19, successively produce ruddiness, green glow and blue light (three arrows) after via twice optical filtering by white light.Wherein the first side of photo-coupler 19 is close to this line flowing channel 66, and this first kind light source 521 is settled in this first side, this second class light source 525 is settled in the second side that is connected with this first side, this first kind light source 521 directly is connected with this first heating radiator 11, and the second class light source 525 sees through heat pipe 17 and is connected with second heating radiator 15.At this moment, circuit board 16 is positioned on this line flowing channel 66 and with this first heating radiator 11 and arranges side by side.This arrangement has only two LED can produce heat, also only needs two heat abstractors.The function of photo-coupler 19 is that three primary colors are separated, become R, G, B enter ray machine (14B, 14A) after, finish the synthetic of image color by the optical module of ray machine inside.In other words, LED blue light source 525 is at not enough part (blue light) reinforcement of back energy/brightness ratio that filters.And transformable embodiment is, wherein this first kind light source is a white light LEDs, and this second class light source is a red-light LED.Or this first kind light source is a white light LEDs, and this second class light source is a green light LED.It all is the scope of desire protection of the present invention.
And another impartial embodiment that changes is, wherein the first side of photo-coupler 19 is close to this line flowing channel 66, and this first kind light source 521 and this second class light source 525 is settled in this first side, and this first heating radiator 11 is arranged along runner 66 in regular turn with this second heating radiator 15.And circuit board 16 is positioned on this line flowing channel 66, and arranges (not illustrating) with this first heating radiator 11 side by side with this second heating radiator 15.
By the above detailed description of preferred embodiments, be to wish to know more to describe feature of the present invention and spirit, and be not to come protection scope of the present invention is limited with above-mentioned disclosed preferred embodiment.On the contrary, its objective is that hope can contain in the protection domain of claim of being arranged in of various changes and tool equality institute of the present invention desire application.Therefore, the protection domain of the claim that the present invention applied for should be done the broadest explanation according to above-mentioned explanation, contains the arrangement of all possible change and tool equality to cause it.
Claims (17)
1. light-emitting diode light source type projector device is characterized in that this projector comprises:
Radiator fan, this radiator fan produces air communication and crosses line flowing channel, and this projector is dispelled the heat;
LED source, this LED source comprise first kind light source, the second class light source;
First heating radiator connects this first kind light source; And
Second heating radiator connects this second class light source;
Wherein, this first heating radiator and this second heating radiator are mutually in discrete state and are arranged on this line flowing channel.
2. light-emitting diode light source type projector device as claimed in claim 1, it is characterized in that this LED source also comprises the 3rd class light source, this projector also comprises the 3rd heating radiator, to should the 3rd class light source and be arranged on this line flowing channel, and be mutually in discrete state with this first heating radiator, this second heating radiator.
3. light-emitting diode light source type projector device as claimed in claim 2, it is characterized in that this first kind light source is a ruddiness, this second class light source is a green glow, and the 3rd class light source is a blue light, and flow through in regular turn this first heating radiator, this second heating radiator, the 3rd heating radiator of this air-flow dispels the heat.
4. light-emitting diode light source type projector device as claimed in claim 2 is characterized in that the area of dissipation of this first heating radiator, this second heating radiator is identical, and equals between three times to seven times of area of dissipation of the 3rd heating radiator.
5. light-emitting diode light source type projector device as claimed in claim 2, it is characterized in that this first heating radiator, this second heating radiator, the 3rd heating radiator are prolonging this airflow direction and arranged in regular turn and settle, and make the thermal current behind this first heating radiator of flowing through not be baked to this second heating radiator.
6. light-emitting diode light source type projector device as claimed in claim 2 is characterized in that this first heating radiator, this second heating radiator, the 3rd heating radiator arrange in regular turn along this line flowing channel.
7. light-emitting diode light source type projector device as claimed in claim 6 is characterized in that this first kind light source is a ruddiness, and this second class light source is a green glow, and the 3rd class light source is a blue light.
8. light-emitting diode light source type projector device as claimed in claim 2, it is characterized in that this first kind light source is a ruddiness, this second class light source is a blue light, the 3rd class light source is a green glow, the area of dissipation of this first heating radiator, the 3rd heating radiator is identical, and greater than the area of dissipation of this second heating radiator.
9. light-emitting diode light source type projector device as claimed in claim 2, it is characterized in that this projector further comprises photo-coupler, wherein the first side of this photo-coupler is close to this line flowing channel, and settle this first kind light source and this second class light source, the 3rd class light source is settled in the second side that this first side connects, this first kind light source directly is connected with this second heating radiator with this first heating radiator respectively with this second class light source, and the 3rd class light source sees through heat pipe and is connected with the 3rd heating radiator.
10. light-emitting diode light source type projector device as claimed in claim 2, it is characterized in that this first heating radiator, this second heating radiator, the 3rd heating radiator are prolonging airflow direction and be placed, wherein with short transverse, this first heating radiator is positioned at the top of this second heating radiator, or this first heating radiator is positioned at the below of this second heating radiator, makes the thermal current behind this first heating radiator of flowing through not be baked to this second heating radiator.
11. light-emitting diode light source type projector device as claimed in claim 1 is characterized in that this projector only has single radiator fan.
12. light-emitting diode light source type projector device as claimed in claim 1, it is characterized in that this projector comprises housing, projection lens, air intake vent and air outlet, this housing definition front side, rear side, left side, right side, this air intake vent and this air outlet are respectively adjacent to this left side and this right side is provided with, this radiator fan is placed in contiguous this air intake vent place, enter in this line flowing channel so that this air-flow is sucked, and this projection lens is placed in this place, front side of this housing.
13. light-emitting diode light source type projector device as claimed in claim 1 is characterized in that this first kind light source is a white light, this second class light source is a blue light.
14. light-emitting diode light source type projector device as claimed in claim 1, it is characterized in that this projector further comprises photo-coupler, wherein the first side of this photo-coupler is close to this line flowing channel, and this first kind light source and this second class light source are settled in this first side, and this first heating radiator and this second heating radiator are arranged in regular turn along this line flowing channel.
15. light-emitting diode light source type projector device as claimed in claim 14 is characterized in that this projector further comprises circuit board, is positioned on this line flowing channel and with this first heating radiator and this second heating radiator to arrange side by side.
16. light-emitting diode light source type projector device as claimed in claim 1, it is characterized in that this projector further comprises photo-coupler, wherein the first side of this photo-coupler is close to this line flowing channel, and this first kind light source is settled in this first side, this second class light source is settled in the second side that is connected with this first side, this first kind light source directly is connected with this first heating radiator, and this second class light source sees through heat pipe and is connected with this second heating radiator.
17. light-emitting diode light source type projector device as claimed in claim 16 is characterized in that this projector further comprises circuit board, is positioned on this line flowing channel and with this first heating radiator and arranges side by side.
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| CN 201010132637 CN101923274A (en) | 2010-02-28 | 2010-02-28 | Light-emitting diode light source type projector device |
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| CN 201010132637 CN101923274A (en) | 2010-02-28 | 2010-02-28 | Light-emitting diode light source type projector device |
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| JP2015114369A (en) * | 2013-12-09 | 2015-06-22 | カシオ計算機株式会社 | Projection device |
| CN105093792A (en) * | 2014-05-22 | 2015-11-25 | 卡西欧计算机株式会社 | Light source unit and image projection system |
| CN107272309A (en) * | 2017-08-21 | 2017-10-20 | 青岛海信电器股份有限公司 | Laser projection device |
| CN107479307A (en) * | 2017-08-21 | 2017-12-15 | 青岛海信电器股份有限公司 | Projector equipment |
| CN107479307B (en) * | 2017-08-21 | 2020-08-28 | 海信视像科技股份有限公司 | Projection device |
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