CN110286550A - A kind of active refrigeration formula totally-enclosed Single panel LCD projection light machine - Google Patents
A kind of active refrigeration formula totally-enclosed Single panel LCD projection light machine Download PDFInfo
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- CN110286550A CN110286550A CN201910682420.5A CN201910682420A CN110286550A CN 110286550 A CN110286550 A CN 110286550A CN 201910682420 A CN201910682420 A CN 201910682420A CN 110286550 A CN110286550 A CN 110286550A
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- crystal display
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 38
- 238000001816 cooling Methods 0.000 claims abstract description 69
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 44
- 230000003287 optical effect Effects 0.000 claims abstract description 24
- 235000012149 noodles Nutrition 0.000 claims abstract description 14
- 230000005611 electricity Effects 0.000 claims description 19
- 238000009434 installation Methods 0.000 claims description 6
- 230000003247 decreasing effect Effects 0.000 claims description 2
- 238000009738 saturating Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 abstract description 8
- 230000017525 heat dissipation Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 125000004122 cyclic group Chemical group 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052934 alunite Inorganic materials 0.000 description 1
- 239000010424 alunite Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003205 fragrance Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- KPZTWMNLAFDTGF-UHFFFAOYSA-D trialuminum;potassium;hexahydroxide;disulfate Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Al+3].[Al+3].[Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O KPZTWMNLAFDTGF-UHFFFAOYSA-D 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/16—Cooling; Preventing overheating
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a kind of active refrigeration formula totally-enclosed Single panel LCD projection light machines, including cover and at least one electric cooling module；Cover crosses an enclosure space, optical module is at least accommodated in the enclosure space, and be formed with gas circulation path in the enclosure space；Optical module includes LCD liquid crystal display screen；Gas in enclosure space can flow through LCD liquid crystal display screen along gas circulation path；Electric cooling module is embedded in a cover wall of cover, and its huyashi-chuuka (cold chinese-style noodles) is inwardly, and heat, which faces, to be exposed outside.Active refrigeration formula totally-enclosed Single panel LCD projection light machine of the invention crosses the enclosure space of receiving optical module by the way that cover is arranged, dust can be effectively prevent to enter optical module, and electric cooling module is set in cover wall, electric cooling module can active refrigeration the heat of its huyashi-chuuka (cold chinese-style noodles) moved on into hot end shed to outside cover, radiating efficiency is high, it ensure that LCD liquid crystal display screen can work at a lower temperature, can so make projection light machine that there is very high projection brightness.
Description
Technical field
The present invention relates to projection light machine technical fields, project more particularly to a kind of active refrigeration formula totally-enclosed Single panel LCD
Ray machine.
Background technique
For projector, dust is affected to its projection light machine, and dust enters the optics group inside projector
Part, and the components Shang Hui extreme influence drop shadow effect such as be attached to Fresnel Lenses, reflecting mirror, for production firm,
It will increase its after-sales service cost.
At this stage, there are mainly two types of the dust-proof solutions for LCD projection light machine in industry: it is close that one kind being referred to as half
Black out machine is mainly characterized by closing ray machine and is equipped with air inlet and air outlet, but air inlet and the outlet all use high density Air Filter to paste,
Certain dust-proof effect is played, but dust-proof effect is very limited；Another kind is totally-enclosed ray machine, is mainly characterized by totally-enclosed,
It can reach optimal dust-proof effect, without inlet and outlet, only thermally conductive fin is mounted on ray machine side and inside and outside it, plays
The effect of transmitting heat outward.
Due to being connected to the external world, cool exterior air can be introduced endlessly inside ray machine semi-hermetic ray machine, real
Now to effective heat dissipation of LCD liquid crystal display and the optical components such as polarizing film under high-heat environment, so such ray machine brightness can be with
Accomplish higher level.Its disadvantage is obviously exactly that its is endless totally-enclosed, still suffers from chance dust and is brought into optical system
In system, image is shown and component life impacts, the yields control to production is also unfavorable.
Totally-enclosed ray machine outstanding advantages are exactly display unit totally-enclosed, the possibility for blocking dust to enter completely.It is equipped with cleaning
Production environment can effectively improve product yield, reduce production cost.For ray machine working condition, by the more stable, service life
It is longer, influenced by environment temperature it is smaller.Its disadvantage be exactly its internal amount of heat cannot effectively be discharged in time ray machine it
Outside, the temperature drift of internal each optical component is caused.So this kind of ray machine can only do the projector of low-light level.
Therefore existing technology the shortcomings that be otherwise cannot completely dust-proof or dust-proof but brightness do again it is not high, it is dust-proof with
Both heat dissipations are a pair of contradictory bodies.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of good dustproof effect and takes into account
The active refrigeration formula totally-enclosed Single panel LCD projection light machine of thermal diffusivity, can make to throw while preventing dust from entering optical module
Shadow ray machine has very high projection brightness.
Technical solution: to achieve the above object, active refrigeration formula totally-enclosed Single panel LCD projection light machine of the invention, including
Cover and at least one electric cooling module；
The cover crosses an enclosure space, optical module is at least accommodated in the enclosure space, and in the enclosure space
It is formed with gas circulation path；
The optical module includes LCD liquid crystal display screen；Gas in the enclosure space can be recycled along the gas
Path flows through the LCD liquid crystal display screen；
The electricity cooling module is embedded in a cover wall of the cover, and its huyashi-chuuka (cold chinese-style noodles) is inwardly, and heat, which faces, to be exposed outside.
Further, at least one for assisting that gas recycles along the gas circulation channel is additionally provided in the cover
Circulating fan.
Further, the huyashi-chuuka (cold chinese-style noodles) fitting of the electric cooling module is provided with inner radiator, and hot face paste conjunction is provided with outer dissipate
Hot device, the inner radiator are mounted in the enclosure space.
Further, the outer radiator includes cooling fin and the first axial flow blower；
The side fitting of the cooling fin is fixed on the hot face of the electric cooling module, and first axial flow blower is to being affixed on
The other side of the cooling fin.
Further, the outer radiator includes heat pipe, radiating fin and the second aerofoil fan；
One end of the heat pipe connects the hot face of the electric cooling module, and the other end connects the radiating fin；Described
Two aerofoil fans are to being attached on the radiating fin.
Further, the outer radiator includes the fin of several hot face settings perpendicular to the electric cooling module, and
Fin positioned at middle part is higher, is gradually decreased from middle part to the height of two sides fin.
Further, the gas in the enclosure space can be flowed through along the gas circulation path multiple needs radiating part
Part, and the gas after the electric cooling module refrigeration preferentially flows through the LCD liquid crystal display screen.
Further, the gas circulation path includes main path and a plurality of individual path, and all individual paths are equal
It is connected to the main path；
The electricity cooling module is arranged on the main path；
Gas in the enclosure space can follow main path or in which an individual path flows through the LCD liquid crystal display
Screen；At least one is respectively provided on each individual path needs thermal component.
Further, the projection light machine includes LED lamp panel, light funnel；The optical module includes and the LCD liquid crystal
Display screen Fresnel Lenses disposed in parallel；
The LCD liquid crystal display screen and the LED lamp panel are respectively placed in the large and small end of the smooth funnel；
The channel formed between the Fresnel Lenses and the smooth funnel constitutes a part of the gas circulation path.
Further, the optical module includes reflecting mirror；
The peace for installing the electric cooling module is provided on the cover in the cover wall of the mirror backside
Fill position.
The utility model has the advantages that active refrigeration formula totally-enclosed Single panel LCD projection light machine of the invention crosses receiving by the way that cover is arranged
The enclosure space of optical module can effectively prevent dust to enter optical module, and electric cooling module is arranged in cover wall, electricity refrigeration
Element can active refrigeration the heat of its huyashi-chuuka (cold chinese-style noodles) moved on into hot end shed to outside cover, radiating efficiency is high, ensure that LCD liquid crystal display
Screen can work at a lower temperature, and projection light machine can so be made to have very high projection brightness.
Detailed description of the invention
Attached drawing 1 is the structure chart of the active refrigeration formula totally-enclosed Single panel LCD projection light machine of the first embodiment of the invention；
Attached drawing 2 is the structure chart of the active refrigeration formula totally-enclosed Single panel LCD projection light machine of second of embodiment of the invention；
Attached drawing 3 is the structure chart of the active refrigeration formula totally-enclosed Single panel LCD projection light machine of the third embodiment of the invention；
Attached drawing 4 is the structure chart of the active refrigeration formula totally-enclosed Single panel LCD projection light machine of the 4th kind of embodiment of the invention.
The parts title that each appended drawing reference indicates in attached drawing is as follows:
1- cover；11- gas circulation path；111- main path；112- individual path；2- electricity cooling module；3- optics group
Part；31-LCD liquid crystal display；32- Fresnel Lenses；33- reflecting mirror；34- projection lens；4- circulating fan；Heat dissipation in 5-
Device；The outer radiator of 6-；61- cooling fin；The first axial flow blower of 62-；63- heat pipe；64- radiating fin；The second aerofoil fan of 65-；
66- fin；7-LED lamp plate；8- light funnel.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
The active refrigeration formula totally-enclosed Single panel LCD projection light machine of attached drawing 1 is based on a kind of typical projection light machine structure, the allusion quotation
Type projection light machine mainly includes optical module 3, LED lamp panel 7 and light funnel 8, and wherein optical module 3 includes LCD liquid crystal display screen
31, Fresnel Lenses 32, reflecting mirror 33 and projection lens 34；Light funnel 8 is the bucket-shaped structure of two sides perforation, and LED lamp panel 7 is solid
It is scheduled on its small end, LCD liquid crystal display screen 31 is fixed on its big end；Fresnel Lenses 32 is relative to the LCD liquid crystal display screen 31
It is arranged in parallel, reflecting mirror 33 is obliquely installed.The working principle of the projection light machine is that LED lamp panel 7 issues high-luminance light, high brightness
Light is radiated in the LCD liquid crystal display screen 31 by light funnel 8, and the content shown in LCD liquid crystal display screen 31 is through luxuriant and rich with fragrance alunite
Your lens 32 are simultaneously launched after being reflected by reflecting mirror 33 from projection lens 34, and such projection lens 34 is according in certain plane can be at this
Image is shown in plane.For projector, projection brightness is one item important indicator, in order to promote projector
Brightness, needing, which makes LED lamp panel 7 issue stronger light, beats in LCD liquid crystal display screen 31, at this point, 31 brightness of LCD liquid crystal display screen
Its heat can be increased sharply while promotion, if cannot radiate in time to it, LCD liquid crystal display screen 31 is easily damaged.
On the basis of above-mentioned projection light machine, active refrigeration formula totally-enclosed Single panel LCD projection light machine of the invention further includes
Cover 1 and at least one electric cooling module 2；The cover 1 crosses an enclosure space, and optics group is at least accommodated in the enclosure space
Part 3, and gas circulation path 11 is formed in the enclosure space；Gas in the enclosure space can be recycled along the gas
Path 11 flows through the LCD liquid crystal display screen 31；The electricity cooling module 2 is embedded in a cover wall of the cover 1, and
Inwardly, heat faces to be exposed outside its huyashi-chuuka (cold chinese-style noodles).With this configuration, the gas in enclosure space can follow gas circulation in the enclosed space
Path 11 circulates, and gas is in the heat by that can take away its generation when LCD liquid crystal display screen 31；Gas is by electricity refrigeration
When the region at 2 place of element, its heat is simultaneously changed to hot face by the heat that the huyashi-chuuka (cold chinese-style noodles) of electric cooling module 2 can absorb gas, makes heat
It sheds from hot face to except cover 1.
In addition, in order to make gas that can accelerate cycle heat exchange speed along the smooth one-way flow of gas circulation path 11, it is described
At least circulating fan 4 for assisting gas to recycle along the gas circulation channel 11, the circulated air are additionally provided in cover 1
The preferably vortex flow fan of fan 4, naturally it is also possible to be the fan of other forms.
Above-mentioned electricity cooling module 2 can be thermoelectric semiconductor refrigerator, also known as TEC or TEM, thermoelectric semiconductor refrigeration
Device needs the operating that is powered, and distributes another hot node by a node of thermocouple when thermocouple based on electric current and absorbs heat
Principle, achievable heat, to the conversion in hot face, realize the mesh that the heat in enclosure space swaps out to be scattered to outside cover 1 from huyashi-chuuka (cold chinese-style noodles)
's.In addition to above-mentioned form, electric cooling module 2 can also be other forms, it will be understood that all existing or future appearance by electricity
Power drive realizes the component application of cover internal-external heat exchanger in the inventive solutions, should all be regarded as falling into of the invention
Protection scope.
The quantity of above-mentioned electricity cooling module 2 is unrestricted, and those skilled in the art can be according to practical radiating requirements or structure
Layout needs to be arranged in the cover wall of cover 1 multiple electric cooling modules 2 to guarantee the heat dissipation performance and radiating requirements of projection light machine
Reach balance.And the installation site of electric cooling module 2 can also be set as needed, in the present embodiment, as shown in Fig. 1, electricity system
Cold element 2 is mounted on the back side of reflecting mirror 33, is provided with and is used in the cover wall of 33 back side of reflecting mirror on the cover 1
The installation position of the electric cooling module 2 is installed, because reflecting mirror 33 is obliquely installed in itself, rear side has biggish installation
Reflecting mirror 33 is installed the installation space that can efficiently use 33 behind position of reflecting mirror in the position by position, in installation electricity refrigeration
After the elements such as element 2, circulating fan 4, the length and width of projection light machine entirety will not be obviously increased, projection light machine compact overall structure is small
Ingeniously.
Above-mentioned gas circulating path 11 includes by the pregroove or cover 1 that are formed in cover 1 and optical module 3
The gap formed between multiple components that the gap or optical module 3 formed between component includes is constituted continuous cricoid
Gas passage, gas can be along its shuttling movements.Such as, for embodiment as shown in Figure 1, the Fresnel Lenses 32 and institute
State a part that the channel formed between light funnel 8 constitutes the gas circulation path 11, other portions of gas circulation path 11
Divide and basically forms between the cover wall and optical module 3 of cover 1, the track such as thick dashed line institute in attached drawing 1 of gas circulation path 11
Show.
In a preferred embodiment, the huyashi-chuuka (cold chinese-style noodles) fitting of the electric cooling module 2 is provided with inner radiator 5, and hot face paste is closed
It is provided with outer radiator 6, the inner radiator 5 is mounted in the enclosure space, and the outer radiator 6 is arranged outside cover 1,
The heat absorption efficiency of the huyashi-chuuka (cold chinese-style noodles) of electric cooling module 2 can so be accelerated, and accelerate the radiating efficiency in the hot face of electric cooling module 2, so that
The heat of gas in enclosure space can be siphoned away efficiently and be shed in time by electric cooling module 2, guarantee effective fortune of cooling system
Turn, heat excludes in time, will not make ray machine when in use between it is too long when building up inside heat dissipation do not go out.Above-mentioned inner radiator 5
For the heat sink section bar of more radiation fin structures, heat sink section bar is fixed on the huyashi-chuuka (cold chinese-style noodles) of electric cooling module 2 to patch, and inner radiator 5 is tight
The adjacent circulating fan 4 is arranged.
The form of outer radiator 6 can there are many, be specifically listed below:
In the first embodiment, as shown in Fig. 1, the outer radiator 6 includes cooling fin 61 and the first axial flow blower
62；The side fitting of the cooling fin 61 is fixed on the hot face of the electric cooling module 2, and first axial flow blower 62 is to being affixed on
The other side of the cooling fin 61, cooling fin 61 are the structure of more radiating fins, and electricity refrigeration member can be significantly increased in more radiating fins
The heat dissipation area in the hot face of part 2, the radiating fin blowing that furthermore the first axial flow blower 62 carries the cooling fin 61 can accelerate sky
Gas passes through radiating fin, speeds distributing for heat, so that the radiating efficiency in the hot face of electric cooling module 2 greatly improves.
In second of embodiment, as shown in Fig. 2, the outer radiator 6 includes heat pipe 63, radiating fin 64 and second
Aerofoil fan 65；One end of the heat pipe 63 connects the hot face of the electric cooling module 2, and the other end connects the radiating fin
64, specifically, one end of above-mentioned heat pipe 63 is fixed on copper sheet, and copper sheet is fixed on the hot face of electric cooling module 2 to patch；Described
Two aerofoil fans 65 are to being attached on the radiating fin 64.The structure is turned the heat in the hot face of electric cooling module 2 using heat pipe 63
Move to radiating fin 64, the second aerofoil fan 65 against radiating fin 64 blowing can accelerated heat distribute.Heat pipe 63 is hollow
Copper pipe with heat-conducting medium, in heat-conducting medium be normally liquid, the heated gaseous state that is volatilized into is flowed to radiating fin 64,
At radiating fin 64 by heat derives after again condensation become liquid reflux to the hot face of electric cooling module 2 continue absorb heat,
So circulation, heat exchange efficiency are very high.
In the third embodiment, as shown in Fig. 3, the outer radiator 6 includes several perpendicular to the electricity refrigeration member
The fin 66 of the hot face setting of part 2, and the fin 66 for being located at middle part is higher, is gradually dropped from middle part to the height of two sides fin 66
It is low.In the embodiment, the area positioned at the fin 66 at middle part is larger, and the area positioned at the fin 66 of two sides is smaller, all fins
66 average area is much larger relative to common heat sink section bar, is so added significantly to the heat dissipation area in hot face, can be substantially improved
Radiating efficiency.
In addition, there may be multiple components that need to be radiated in above-mentioned cover 1, such as controlling the master control electricity of projector's running
The component that road plate etc. can generate heat can also be installed in cover 1, so there are multiple when needing thermal component, all radiating parts
Part should be all in the gas circulation path 11, and the gas in the enclosure space can be along the gas circulation path 11
Flowing through each needs thermal component；And the heat dissipation effect in order to guarantee LCD liquid crystal display screen 31, freeze through the electric cooling module 2
Gas afterwards preferentially flows through the LCD liquid crystal display screen 31, and such LCD liquid crystal display screen 31 can preferentially radiate.
In the various embodiments described above, as illustrated in the accompanying drawings from 1 to 3, gas circulation path 11 is a cricoid single cycle path,
Gas follows the cyclic path shuttling movement, succinct efficient, but in the case of having, in projector includes LCD liquid crystal display
Multiple need thermal component that can not be arranged on the same cyclic path including screen 31, it is therefore necessary to by gas circulation path 11
It is made into the form comprising multiple cyclic paths, it may be assumed that the gas circulation path 11 includes main path 111 and a plurality of individual path
112, tail end of the head end of all individual paths 112 with tail end with the main path 111 is respectively communicated with head end, described
Electric cooling module 2 is arranged on the main path 111.Gas in the enclosure space can follow main path 111 or in which one
Individual path 112 flows through the LCD liquid crystal display screen 31；Being respectively provided at least one on each individual path 112 needs thermal component.
After gas in cover 1 freezes on main path 111 via the electric cooling module 2, from the tail end of main path 111
Head end into each individual path 112 is divided into multichannel, and multipath gas needs thermal component band via on each individual path 112 respectively
Summarized again in the head end that the tail end of each individual path 112 enters the main path 111 after walking its heat, the hot gas after summarizing
Body enters next circulation after carrying out cooling using electric cooling module 2, loops back and forth like this operating, can be to the institute in cover 1
Thermal component is needed effectively to be radiated.
It illustrates, as shown in Fig. 4, the LED lamp panel 7 and light funnel 8 are also mounted in the cover 1, cover 1
It is interior that LED lamp panel 7 is also required to effectively be radiated in addition to except LCD liquid crystal display screen 31, this needs thermal component, and due to LED lamp panel 7
The both ends of light funnel 8 are separately positioned on LCD liquid crystal display screen 31, therefore the two can not be arranged on same cyclic path, because
An individual path 112 is respectively set for both LED lamp panel 7 and LCD liquid crystal display screen 31 in this, wherein an individual path 112 is
The slype formed between Fresnel Lenses 32 and the smooth funnel 8, outer wall of another individual path 112 along light funnel 8
It walks, by the big end of light funnel 8 to the small end of light funnel 8, returns LCD liquid crystal display screen described in the big end and approach of light funnel 8
31 individual path all the way 112 converges.The structure simultaneously can effectively radiate to LCD liquid crystal display screen 31 and LED lamp panel 7,
And making the integraty of projection light machine higher, closure is more preferable.In addition, on the basis of the embodiment, if an electricity refrigeration member
Part 2 is unable to satisfy radiating requirements, can also install electric cooling module 2 additional in the other positions of cover 1, can such as correspond to LED lamp panel 7
An electric cooling module 2 is added in the cover wall of position.
In a preferred embodiment, 31 part reload temperature sensor of LCD liquid crystal display screen can be directed in cover 1, temperature
Degree sensor is electrically connected with the main control board of projection light machine, in addition, relating in electric cooling module 2, circulating fan 4 and each embodiment
And the first axial flow blower 62, the second aerofoil fan 65 etc. connect with main control board, main control board can be passed according to temperature
The temperature of sensor acquisition carries out SERVO CONTROL to the cooling system of entire projection light machine, and specifically, main control board has control
Device and memory, the first preset value is at least stored in memory, and the first preset value corresponds to the temperature of LCD liquid crystal display screen 31
Threshold value, it is however generally that, the running temperature of LCD liquid crystal display screen 31 needs to control at 80 DEG C hereinafter, and working most at 70 DEG C or less
It is good, the first preset value can be set as 80 DEG C herein, when controller detects that 31 running temperature of LCD liquid crystal display screen is more than first pre-
If value, then the operation power for increasing electric cooling module 2 is needed, and promote circulating fan 4, the first axial flow blower 62, the second axis stream wind
The revolving speed of fan 65 etc. is to promote cycle efficieny and radiating efficiency so that the running temperature of LCD liquid crystal display screen 31 is dropped to rapidly first
Below preset value.In addition, can also store other preset values in memory, multiple temperature ranges are formed between each preset value, are controlled
Corresponding operating parameter can be arranged for each temperature range in device, and operating parameter is related to the operation power and each wind of electric cooling module 2
The revolving speed of fan can so finely control cooling system, guarantee to reduce operation power consumption while heat dissipation effect.
Active refrigeration formula totally-enclosed Single panel LCD projection light machine of the invention crosses receiving optical module by the way that cover is arranged
Enclosure space can effectively prevent dust to enter optical module, and electric cooling module is arranged in cover wall, and electric cooling module can be actively
The heat of its huyashi-chuuka (cold chinese-style noodles) is moved on to hot end and shed to outside cover by refrigeration, and radiating efficiency is high, ensure that LCD liquid crystal display screen can be lower
At a temperature of work, can so make projection light machine have very high projection brightness.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (10)
1. a kind of active refrigeration formula totally-enclosed Single panel LCD projection light machine, which is characterized in that including cover and at least one electricity refrigeration member
Part；
The cover crosses an enclosure space, optical module is at least accommodated in the enclosure space, and formed in the enclosure space
There is gas circulation path；
The optical module includes LCD liquid crystal display screen；Gas in the enclosure space can be along the gas circulation path
Flow through the LCD liquid crystal display screen；
The electricity cooling module is embedded in a cover wall of the cover, and its huyashi-chuuka (cold chinese-style noodles) is inwardly, and heat, which faces, to be exposed outside.
2. active refrigeration formula totally-enclosed Single panel LCD projection light machine according to claim 1, which is characterized in that the cover
Inside it is additionally provided at least circulating fan for assisting gas to recycle along the gas circulation channel.
3. active refrigeration formula totally-enclosed Single panel LCD projection light machine according to claim 1, which is characterized in that the electricity system
The huyashi-chuuka (cold chinese-style noodles) fitting of cold element is provided with inner radiator, and hot face paste conjunction is provided with outer radiator, and the inner radiator is mounted on institute
It states in enclosure space.
4. active refrigeration formula totally-enclosed Single panel LCD projection light machine according to claim 3, which is characterized in that described outer scattered
Hot device includes cooling fin and the first axial flow blower；
The side fitting of the cooling fin is fixed on the hot face of the electric cooling module, and first axial flow blower is described to being affixed on
The other side of cooling fin.
5. active refrigeration formula totally-enclosed Single panel LCD projection light machine according to claim 3, which is characterized in that described outer scattered
Hot device includes heat pipe, radiating fin and the second aerofoil fan；
One end of the heat pipe connects the hot face of the electric cooling module, and the other end connects the radiating fin；Second axis
Flow fan is to being attached on the radiating fin.
6. active refrigeration formula totally-enclosed Single panel LCD projection light machine according to claim 3, which is characterized in that described outer scattered
Hot device includes the fin of several hot face settings perpendicular to the electric cooling module, and the fin for being located at middle part is higher, by middle part
It is gradually decreased to the height of two sides fin.
7. active refrigeration formula totally-enclosed Single panel LCD projection light machine according to claim 1, which is characterized in that the closing
Gas in space can be flowed through along the gas circulation path it is multiple need thermal component, and after the electric cooling module refrigeration
Gas preferentially flow through the LCD liquid crystal display screen.
8. active refrigeration formula totally-enclosed Single panel LCD projection light machine according to claim 1, which is characterized in that the gas
Circulating path includes main path and a plurality of individual path, and all individual paths are connected to the main path；
The electricity cooling module is arranged on the main path；
Gas in the enclosure space can follow main path or in which an individual path flows through the LCD liquid crystal display screen；Respectively
At least one is respectively provided on individual path needs thermal component.
9. active refrigeration formula totally-enclosed Single panel LCD projection light machine according to claim 1, which is characterized in that the projection
Ray machine includes LED lamp panel, light funnel；The optical module includes saturating with LCD liquid crystal display screen Fresnel disposed in parallel
Mirror；
The LCD liquid crystal display screen and the LED lamp panel are respectively placed in the large and small end of the smooth funnel；
The channel formed between the Fresnel Lenses and the smooth funnel constitutes a part of the gas circulation path.
10. active refrigeration formula totally-enclosed Single panel LCD projection light machine according to claim 1, which is characterized in that the optics
Component includes reflecting mirror；
The installation position for installing the electric cooling module is provided on the cover in the cover wall of the mirror backside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910682420.5A CN110286550A (en) | 2019-07-26 | 2019-07-26 | A kind of active refrigeration formula totally-enclosed Single panel LCD projection light machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910682420.5A CN110286550A (en) | 2019-07-26 | 2019-07-26 | A kind of active refrigeration formula totally-enclosed Single panel LCD projection light machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114384746A (en) * | 2022-02-24 | 2022-04-22 | 广州瑞格尔电子有限公司 | Refrigeration type liquid cooling heat dissipation closed LCD projection optical machine |
| CN114895515A (en) * | 2022-04-18 | 2022-08-12 | 深圳市和天创科技有限公司 | Intelligent heat dissipation mechanism of sealed optical machine of single-chip projector |
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| CN208399876U (en) * | 2018-07-26 | 2019-01-18 | 兴光谱科技成都有限公司 | Cycle refrigeration system in a kind of electronic projection apparatus |
| CN109547760A (en) * | 2018-12-25 | 2019-03-29 | 深圳市锐图技术有限公司 | Projector |
| CN208689351U (en) * | 2018-09-30 | 2019-04-02 | 鲜善洪 | The hermetically sealed screen cooling system of one chip LCD projector |
| CN210072297U (en) * | 2019-07-26 | 2020-02-14 | 苏州轰天炮光电科技有限公司 | Active refrigeration type fully-closed single-chip LCD projection optical machine |
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| CN101419386A (en) * | 2007-10-25 | 2009-04-29 | 鸿富锦精密工业（深圳）有限公司 | LCD video projector |
| CN208399876U (en) * | 2018-07-26 | 2019-01-18 | 兴光谱科技成都有限公司 | Cycle refrigeration system in a kind of electronic projection apparatus |
| CN208689351U (en) * | 2018-09-30 | 2019-04-02 | 鲜善洪 | The hermetically sealed screen cooling system of one chip LCD projector |
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| CN114384746A (en) * | 2022-02-24 | 2022-04-22 | 广州瑞格尔电子有限公司 | Refrigeration type liquid cooling heat dissipation closed LCD projection optical machine |
| CN114895515A (en) * | 2022-04-18 | 2022-08-12 | 深圳市和天创科技有限公司 | Intelligent heat dissipation mechanism of sealed optical machine of single-chip projector |
| CN114895515B (en) * | 2022-04-18 | 2023-10-03 | 深圳市和天创科技有限公司 | Intelligent heat dissipation mechanism of sealed ray apparatus of singlechip |
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