Utility model content
In view of above-mentioned condition is it is necessary to providing a kind of higher cooling system of radiating efficiency and adopting described cooling system
Projection arrangement.
A kind of cooling system, it includes ducting assembly, the first fan and first heating element, shape in described ducting assembly
Become to have the first air channel.Described first fan is arranged in described first air channel, and described first heating element is arranged at described first
Outside air channel, and the air-flow of described first fan discharge is approximately perpendicular to the centre bit in the main heating face of described first heating element
Put.
As a kind of preferred version, described cooling system also includes radiating subassembly, and described radiating subassembly is arranged at described
It is connected between one heater element and described first fan and with the main heating fever sensation of the face of described first heating element, described first wind
The air-flow that fan is discharged flows in described radiating subassembly, and guides from the inflow direction different from air-flow via described radiating subassembly
Two air-flows flow out direction and flow out.
As a kind of preferred version, described two air-flows flow out setting in opposite direction, and the inflow with described air-flow respectively
The substantially vertical setting in direction.
As a kind of preferred version, described radiating subassembly includes the multiple radiating fins be arrangeding in parallel, often two neighboring scattered
It is formed with gas channel, the straight line that the direction flowing into described heat abstractor along air-flow extends is approximately perpendicular to described between hot fin
The plane that multiple radiating fins are located, flows into air-flow in described radiating subassembly and guides from dissipating along described via multiple gas channels
Two rightabouts that hot fin extends flow out.
As a kind of preferred version, described cooling system is additionally provided with two strands of air-flows for flowing out via described radiating subassembly
The second air channel circulated respectively and the 3rd air channel.
As a kind of preferred version, described cooling system also includes current limiting plate, and described current limiting plate is arranged at described first wind
The air inlet in road, the air-flow for preventing from flowing out via described second air channel or the 3rd air channel is inhaled in described first air channel.
As a kind of preferred version, described ducting assembly includes interconnective multiple plate, the side of the plurality of plate
Wall defines described first air channel.
As a kind of preferred version, at least one plate is made from a material that be thermally conductive, and described cooling system also includes and heat conduction
The mutually hot linked second heatiing element of plate that material is made.
As a kind of preferred version, the plurality of plate is made up of adiabator.
A kind of projection arrangement, it includes any of the above-described kind of cooling system.
Cooling system of the present utility model, substantially just can produce gas to the center of first heating element by setting
First fan of stream, makes the center that the cold air being absorbed by the first fan is directed to first heating element be radiated,
Improve the radiating efficiency to first heating element.
Specific embodiment
Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below in conjunction with the accompanying drawings to this
The specific embodiment of utility model is described in detail.
Elaborate a lot of details in the following description in order to fully understand this utility model, but this practicality is new
Type can also be different from alternate manner described here to implement using other, and those skilled in the art can be without prejudice to this reality
With doing similar application in the case of new intension, therefore this utility model is not limited by following public specific embodiment.
Secondly, this utility model is described in detail with reference to schematic diagram, when describing this utility model embodiment in detail, for ease of
Illustrate, represent that the profile of device architecture can be disobeyed general ratio and made partial enlargement, and described schematic diagram is example, its
This should not limit the scope of this utility model protection.Additionally, the three-dimensional space of length, width and depth should be comprised in actual fabrication
Between size.
It should be noted that it is " substantially vertical used in this utility model embodiment and appended claims
Directly " and " substantially just to " refers to substantially 90 ° of angle of intersection, such as angle of intersection is 90 ± 5 °, 90 ± 10 °.
It is described in detail below by embodiment.
Refer to Fig. 1, the projection arrangement 100 that this utility model embodiment provides, it includes light source 10, colour wheel 20, light
Relay system 30, photomodulator 40 and projecting lens unit 50.
Described light source 10 is used for sending exciting light, such as blue excitation light, and described light source 10 can be blue laser light source(Or
Claim blue laser).In a kind of change embodiment, described light source 10 can also be the light source of other colors, not with indigo plant
Color light source is limited, if described light source 10 can be Ultra-Violet Laser light source(Or title ultraviolet laser), thus sending uv excitation light.
Further, described light source 10 is preferably semiconductor laser light resource, in order to provide the exciting light of high brightness.
Described colour wheel 20 is arranged in the light path of exciting light that described light source 10 sends, for receiving sending out of described light source 10
The exciting light going out the light projecting described at least two colors.Described colour wheel 20 can be discoid colour wheel, for sequentially penetrating
Go out the light of described at least two colors(As redgreenblue light, champac two color light etc.).Specifically, described colour wheel 20 can set
It is equipped with fluorescent material, described fluorescent material is excited the Stimulated Light that can produce another kind or two kinds of colors by described exciting light
(Stimulated Light as the red color such as greenish-yellow), thus described colour wheel can project the light of at least two colors.
In present embodiment, described colour wheel 20 is transmission-type colour wheel, and that is, the light of described light source 10 is from the one of described colour wheel 20
Side is incident, and the opposite side of described colour wheel 20 projects the light of described at least two colors.Certainly, in a kind of change embodiment
In, described colour wheel can also be reflective colour wheel 20.
Described light relay system 30 is arranged at the side of described light source 10, and the light for projecting described colour wheel 20 carries out even
Light, collection and shaping(For example so that the projected spot of light beam meets reservation shape)Deng process after provide to described photomodulator
40.
Described photomodulator 40 is arranged between described light relay system 30 and described projecting lens unit 50, for foundation
Input image data carries out image modulation to produce to the light beam inciding described photomodulator 40 via described light relay system 30
Raw modulation image light, and described modulation image light is transmitted to described projecting lens unit 50.Described photomodulator 40 can
To include reflective light modulators or transmission-type photomodulator.Wherein, the light beam from light source 10 incides reflection type optical and adjusts
On the front surface of device processed, and it is reflected transmitted to described projecting lens unit 50 from this reflective light modulators;Or, from light
The light beam in source 10 incides on the front surface of porjection type photomodulator, and transmits to described projection through this porjection type photomodulator
Lens unit 50.Reflective light modulators include reflection-type light valve(Digital micro-mirror device, DMD), described reflection-type light valve includes
Multiple with pixel quantity identical microscopic mirrors, by electrically or mechanically changing the angle of each mirror, enter reflection-type
The light beam of light valve front surface is modulated and is reflected.In present embodiment, photomodulator 40 is reflection-type light valve, i.e. DMD light modulation
Device.
Described projecting lens unit 50 is used for being amplified incident modulation image light, and by described modulation image light
Line is to screen(Not shown)Projected to show predetermined image.
When photomodulator 40 is driven, its own produces heat.Meanwhile, in addition to spontaneous heating, reflective light modulators due to
Reflection loss produces heat, and porjection type photomodulator produces heat due to transmission loss.
See also Fig. 2, what the neighbouring described photomodulator 40 that this utility model first embodiment provides was arranged dissipates
Hot systems 200.Described cooling system 200 is used for photomodulator 40, waits the heater element of other projection arrangements 100 to be dissipated
Heat.Specifically, described cooling system 200 includes channel components 60, the first fan 63, radiating subassembly 64 and the second fan 65.
Described channel components 60 include interconnective multiple plate 61.It is understood that the plurality of plate 61 can
Be integrally formed to form described channel components 60, also can split molding again group be filled with formation described channel components 60.At least one
Plate 61 is installed on control board mount 66.The installation of the described panel controlling board mount 66 to be used as described projection arrangement 100
Frame.It is understood that in other embodiments, channel components 60 are mountable to other internal stent of projection arrangement 100
On.It is formed with the first air channel 62, in other words, the side wall of the plurality of plate 61 defines described in formation in described channel components 60
First air channel 62.Described first air channel 62 has air inlet 621 and air outlet 623.Described first fan 63 goes out described in being arranged at
At air port 623.It is understood that described first fan 63 can be arranged directly on the plate 61 in the first air channel 62, also may be used
To be arranged on the interior shelf of projection arrangement 100(Not shown)On.It is understood that in other embodiments, projection
Other inner members of device 100, such as circuit board, electronic component etc., can also be provided on plate 61, so that cooling system 200
Other inner members of projection arrangement 100 are radiated.
In the first air channel 62, the pressure that cool exterior air is produced by the first fan 63 from air inlet 621(Negative pressure)Suck
To in the first air channel 62, and discharged the first air channel 62 from air outlet 623 by the first fan 63.Specifically in illustrated embodiment
In, described first air channel 62 substantially ┐ shape, for guiding and forming the air-flow being approximately perpendicular to described radiating subassembly 64.Permissible
It is understood by, in other embodiments, the shape in described first air channel 62 is not restricted by.The plurality of plate 61 is by thermal insulation
Material(As dielectric plastic material)Make, for preventing the heat outside the first air channel 62 to be transferred to the first air channel 62 via wind path wall
In interior cold air.
Radiating subassembly 64 is arranged at outside the first air channel 62, and is located at the wind underside of the exhaust outlet of the first fan 63.Specifically
In illustrated embodiment, the exhaust outlet also center just to radiating subassembly 64 of described first fan 63.It is understood that
In other embodiments, the exhaust outlet that the center of described radiating subassembly 64 also can not just to described first fan 63, only
Radiating subassembly 64 is wanted to be located at the wind underside of the exhaust outlet of the first fan 63, and the air-flow that produced by described first fan 63 and institute
The center stating radiating subassembly 64 is substantially just right(Or it is substantially vertical), for example, the first fan 63 is arranged on described first wind
The medium position in road 62, and described first fan 63 discharge air-flow substantially just to or vertically flow to described radiating subassembly 64
Center.
Described radiating subassembly 64 includes the multiple radiating fins 642 be arrangeding in parallel, two often adjacent radiating fins 642 it
Between there is prepsetting gap, to form gas channel.In present embodiment, described radiating fin 642 is in that strip is arranged, multiple radiatings
Fin 642 is arranged in parallel to be rectangle setting.Airflow direction along the cold air discharged from the exhaust outlet of the first fan 63 extends
Straight line substantially vertical with the plane that multiple radiating fins 642 of be arrangeding in parallel are located.Discharge from the exhaust outlet of the first fan 63
Cold air generally perpendicularly blow to described radiating subassembly 64 multiple radiating fins 642 be located plane center, and
Under the guiding of each gas channel, it is split into two strands of air-flows at radiating fin 642 approximate centre position and discharges, and described two strands
The outflow direction of air-flow is substantially vertical with the inflow direction of the air-flow flowing into described radiating subassembly 64 respectively.Described two strands of air-flows divide
Not along contrary both direction, two rightabouts that is, described radiating fin 642 extends along its length, in the second fan
The pressure of 65 generations(Negative pressure)In the presence of, discharge outside cooling system 200.It is understood that in other embodiments, institute
State the second fan 65 can omit, the two strands of air-flows being shunted by radiating subassembly 64, in the presence of the first fan 63, equally can be arranged
Go out outside cooling system 200.
Radiating subassembly 64 also with first heating element thermally coupled.In present embodiment, described first heating element is adjusted for light
Device 40 processed.The center substantially just to the main heating face of first heating element for the exhaust outlet of described first fan 63.Permissible
It is understood by, the center that the exhaust outlet of described first fan 63 can not just to the main heating face of first heating element, only
The air-flow that the first fan 63 is discharged is wanted to be approximately perpendicular to the air-flow of the center in main heating face of described first heating element
, for example, by the first fan 63 be arranged on the medium position in described first air channel 62 and produce substantially just to or vertically described
The air-flow at the center in main heating face of first heating element.The heat heat transfer that described first heating element produces is to radiating group
Part 64, two strands of air-flows via radiating subassembly 64 shunting discharge the heat that first heating element produces outside cooling system 200.By
In the center substantially just to the main heating face of described first heating element for the exhaust outlet of described first fan 63, described
The heat that the center in the main heating face of one heater element produces is transferred directly to described radiating subassembly 64 and then by first
The air-flow that fan 63 drives quickly is taken away, thus improve the center in the main heating face to described first heating element
Radiating efficiency.
Fig. 3, the cooling system 200 of the offer of this utility model second embodiment, its structure and the first enforcement are provided
The structure of the projection arrangement of mode is roughly the same.Difference is:Cooling system 200 also includes current limiting plate 72, second heating
Element 74, the 3rd heater element 75, the 4th heater element 76 and three fan 78.Preferably, described 3rd heater element 75
And the 4th the caloric value of heater element 76 be all higher than the caloric value of described first heating element.At least one plate 61 is by heat conduction
Material is made, such as silicon, silver, copper, golden aluminum etc..Plate 61 and second heatiing element 74 thermally coupled that this is made from a material that be thermally conductive, institute
Stating second heatiing element 74 is, for example, circuit board.It is additionally provided with the second air channel 73 and the 3rd air channel 77 in described cooling system 200,
Via two strands of air-flows of radiating subassembly 64 shunting, wherein one air-flow is discharged outside cooling system 200 via the second air channel 73, wherein
Another strand of air-flow is discharged outside cooling system 200 via the 3rd air channel 77.Second fan 65 and the 3rd heater element 75 are arranged on
In second air channel 73, in the presence of the second fan 65, flow through what the 3rd heater element 75 was produced by the air-flow in the second air channel 73
Heat is discharged outside cooling system 200.Three fan 78 and the 4th heater element 76 are arranged in the 3rd air channel 77, in the 3rd wind
In the presence of fan 78, the air-flow flowing through the 3rd air channel 77 discharges the heat that the 4th heater element 76 produces outside projection arrangement 100.
Current limiting plate 72 is arranged at the air inlet 621 in the first air channel 62, and it extends towards the second air channel 73 bending, is used for preventing by second
Air channel 73 or the 3rd air channel 77 effluent air are taken directly in the first air channel 62, and increase the area of air inlet 621, make
Cool ambient air preferably imports in the first air channel 62.
It is understood that in other embodiments, described radiating subassembly 64 can omit, described first fan 63 row
The air-flow going out generally perpendicularly flows to the center in the main heating face of described first heating element, thus directly to described the
Radiated in the center of one heater element.
It is understood that in other embodiments, two strands of air-flows via the shunting of described radiating subassembly 64 can be along two
Individual not contrary direction is flowed out, and for example, radiating subassembly 64 includes multiple radiating fins 642 be arrangeding in parallel, described heat radiating fin
Piece 642 be shaped as V-arrangement.
Cooling system 200 of the present utility model, by the main heating face substantially just to first heating element for the setting
First fan 63 of heart position, makes the cold air being absorbed by the first fan 63 be directed to the main heating face of first heating element
Center radiated, improve radiating efficiency to first heating element.Simultaneously as the gas discharged from the first air channel 62
The plane at multiple radiating fins 642 place be arrangeding in parallel in airflow direction and the radiating subassembly 64 of stream is substantially perpendicular, and phase
It is formed with gas channel between adjacent two radiating fins 642, so that the air-flow discharged from the first air channel 62 is generally perpendicularly flowed to many
Air-flow in the center of the plane that individual radiating fin 642 is located, and inflow radiating subassembly 64 is by multiple radiating fin 642 institutes
The center position of plane split into two strands of air-flows in opposite direction and flow out radiating subassemblies along the bearing of trend of gas channel
Outside 64, further increase the radiating efficiency to first heating element.And in the second air channel 73 and the 3rd air channel 77 respectively
3rd heater element 75 and the 4th heater element 76 are set, letter while improving the integral heat sink efficiency of cooling system 200
Change the structure of cooling system 200.
Embodiment of above only in order to the technical solution of the utility model to be described and unrestricted, in addition, it is appreciated that for
The radiating of the heater element in other types device can also adopt by reference cooling system provided by the utility model.Although ginseng
According to above better embodiment, this utility model is described in detail, it will be understood by those within the art that, can
To modify to the technical solution of the utility model or equivalent should not depart from the spirit of technical solutions of the utility model
And scope.