CN209356836U - A kind of cooling system of laser display apparatus - Google Patents
A kind of cooling system of laser display apparatus Download PDFInfo
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- CN209356836U CN209356836U CN201920376561.XU CN201920376561U CN209356836U CN 209356836 U CN209356836 U CN 209356836U CN 201920376561 U CN201920376561 U CN 201920376561U CN 209356836 U CN209356836 U CN 209356836U
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Abstract
The utility model discloses a kind of cooling systems of laser display apparatus, including the first cabinet and the second cabinet, optical device and the liquid cooling plate for carrying out liquid cooling to optical device are provided in first cabinet, inlet and liquid outlet are provided on the tank wall of first cabinet, the import of liquid cooling plate is connected to inlet, and the outlet of liquid cooling plate is connected to liquid outlet；Cold liquid supply unit is provided in second cabinet and for carrying out air-cooled air cooling equipment to the liquid in cold liquid supply unit, it is provided on the tank wall of second cabinet with the supply opening of the outlet of cold liquid supply unit, with the liquid return hole of the inlet communication of cold liquid supply unit and for the air inlet and exhaust outlet of air cooling equipment intake and exhaust, and supply opening is connected to inlet, liquid outlet is connected to liquid return hole.The vibration that above-mentioned cooling system can be avoided fan influences the stability of the optical element of laser display apparatus, while can be avoided the risk of accumulation dust damage equipment, namely improve the service life of laser display apparatus.
Description
Technical field
The utility model relates to laser display apparatus technical field more particularly to a kind of heat dissipation systems of laser display apparatus
System.
Background technique
Laser display technology has color saturation height, service life length, display brightness height, energy conversion efficiency height etc. excellent
Gesture significantly improves the effect of projection imaging compared to conventional light sources such as xenon lamps.The application range of semiconductor laser is gradually at present
Expand, is favored in fields such as cinema projection, engineering projections.It is exported along with high brightness, the calorific value of laser display apparatus
Increasingly increase, to the heat dissipation design of equipment, more stringent requirements are proposed for this.Primary Component in laser display apparatus includes LCD
(Liquid Crystal Display, laser writer), laser (Laser diode) etc., wherein the effect of LCD is to receive
The shoot laser of laser controls the rotation direction of liquid crystal molecule by the change of signal and voltage, so that it is every to reach control
Whether a pixel polarised light is emitted, to reach display purpose.According to its displaying principle, when showing different images, at LCD
Light transmission rate can occur substantially to change, when the brightness for showing picture is lower, the light aggregation of higher-energy is had at LCD, is led
Causing it, temperature rapid increase.And LCD is very sensitive to temperature, temperature is excessively high to will lead to imaging distortion, eyeglass damage.
In view of the arrangement mode and light transmission features of LCD eyeglass, cooling system can only be terrible by the way of air-cooled
To Cryogenic air, the current cooling system for LCD mostly uses TEC (Thermo Electric Cooler, thermoelectric cooler)
The mode combined with air circulation system, chill surface and radiating surface of the which in TEC install a fin radiator respectively
And the heat at LCD is dispersed into environment to obtain Cryogenic air in chill surface side in radiating surface side by fan.But
It is that this radiating mode efficiency is lower, the temperature of Cryogenic air tends not to meet the requirement being highlighted, and the vibration of fan
Dynamic to adversely affect to the stability of display equipment, furthermore the air circulation of the long-term high speed of box house has accumulation dust
Damage the risk of equipment.Therefore the generally existing stability of existing laser display apparatus and service life lower problem
In conclusion how to solve the problems, such as the generally existing stability of laser display apparatus and service life it is lower at
For the technical problem of those skilled in the art's urgent need to resolve.
Utility model content
The purpose of the utility model is to provide a kind of cooling systems of laser display apparatus, general to solve laser display apparatus
The problem lower all over existing stability and service life.
To achieve the goals above, the utility model provides a kind of cooling system of laser display apparatus, including first
Cabinet and the second cabinet are provided with optical device and the liquid cooling for carrying out liquid cooling to the optical device in first cabinet
Plate is provided with inlet and liquid outlet on the tank wall of first cabinet, and the import of the liquid cooling plate is connected to the inlet,
The outlet of the liquid cooling plate is connected to the liquid outlet；
Cold liquid supply unit is provided in second cabinet and for carrying out to the liquid in the cold liquid supply unit
Air-cooled air cooling equipment is provided with the feed flow with the outlet of the cold liquid supply unit on the tank wall of second cabinet
Mouth, air inlet and exhaust with the liquid return hole of the inlet communication of the cold liquid supply unit and for the air cooling equipment intake and exhaust
Mouthful, and the supply opening is connected to the inlet, the liquid outlet is connected to the liquid return hole.
Preferably, the cold liquid supply unit includes the liquid storage being sequentially connected in series between the liquid return hole and the supply opening
Tank and the pump housing.
Preferably, the pump housing is directly to drive pump by the minitype high voltage head of driven by Brush-Less DC motor.
Preferably, the fluid reservoir be transparent tank body, and or the fluid reservoir on be provided with liquid level sensor.
Preferably, the air cooling equipment includes the first wind liquid heat exchanger and is used to carry out wind to the first wind liquid heat exchanger
The first cold fan.
Preferably, the first wind liquid heat exchanger is set between the pump housing and the supply opening and/or is set to institute
It states between liquid return hole and the fluid reservoir.
Preferably, multiple water channels and densely covered radiating fin are provided on the first wind liquid heat exchanger.
Preferably, the quantity of the first fan corresponding to the first wind liquid heat exchanger is multiple, and the first wind liquid
The front face area of heat exchanger is not less than the total sectional area of its corresponding first fan.
Preferably, first fan is axial cooling fan.
Preferably, the optical device includes laser writer and laser, and the liquid cooling plate includes for swashing to described
Optical display unit carries out the first cooling liquid cooling plate and for carrying out the second cooling liquid cooling plate to the laser.
Preferably, first liquid cooling plate and second liquid cooling plate be serially connected in the inlet and the liquid outlet it
Between.
Preferably, first liquid cooling plate and second liquid cooling plate are connected in the inlet and the liquid outlet in parallel
Between.
Preferably, interior circulating air cooling device is additionally provided in first cabinet, the interior circulating air cooling device includes interior
Circulation air path, the second fan being arranged in the interior circulation air path and the second wind liquid heat exchanger；
The second wind liquid heat exchanger, for making the air in first liquid cooling plate and the interior circulation air path complete heat
Exchange；The interior circulation air path is shown for that will be delivered to laser with the Cryogenic air after first liquid cooling plate completion heat exchange
Show device.
Preferably, thermoelectric cooler, and institute are additionally provided between first liquid cooling plate and the second wind liquid heat exchanger
The radiating surface for stating thermoelectric cooler is contacted with first liquid cooling plate, the chill surface of the thermoelectric cooler and the second wind liquid
The substrate of heat exchanger contacts, and the radiating fin of the second wind liquid heat exchanger is located in the interior circulation air path.
Preferably, it is all provided on the heat-exchange surface of the thermoelectric cooler, the second wind liquid heat exchanger and the liquid cooling plate
It is equipped with heat conducting coating.
Preferably, second fan is centrifugal blower.
Preferably, filter screen is additionally provided at the air inlet.
Preferably, it is all made of between the liquid outlet and the liquid return hole between the supply opening and the inlet fast
Quick coupling connection.
Content, the cooling system of above-mentioned laser display apparatus, including the first cabinet and second are introduced compared to background technique
Cabinet is provided with optical device and the liquid cooling plate for carrying out liquid cooling to optical device, the tank wall of the first cabinet in the first cabinet
On be provided with inlet and liquid outlet, the import of liquid cooling plate is connected to inlet, and the outlet of liquid cooling plate is connected to liquid outlet；Second
Cold liquid supply unit is provided in cabinet and for carrying out air-cooled air cooling equipment, the second case to the liquid in cold liquid supply unit
Time with the inlet communication of the supply opening of the outlet of cold liquid supply unit and cold liquid supply unit is provided on the tank wall of body
Liquid mouth and air inlet and exhaust outlet for air cooling equipment intake and exhaust, and supply opening is connected to inlet, liquid outlet and liquid return hole
Connection.Above-mentioned cooling system is intracorporal to first case by second case intracorporal cold liquid supply unit in practical work process
Liquid cooling plate provides cooling liquid, so that first case intracorporal liquid cooling plate can carry out liquid cooling to optical device, realizes cooling
Purpose, cooling efficiency is more efficient compared to air-cooled, while there also is provided air cooling equipment in the second cabinet, by air cooling equipment with
Cold liquid supply unit carries out heat exchange and realizes that the liquid supplied cooling feeding mechanism keeps the liquid of lasting lower temperature, from
And can be realized the air-cooled mode being coupled with liquid cooling and laser display apparatus is cooled down, expeditiously reduce optical device
Operating temperature.And above-mentioned cooling system is separated optical device with air cooling equipment by the first cabinet and the second cabinet, from
And the vibration that can be avoided fan influences the stability of the optical element of laser display apparatus, while avoiding and being provided with optics device
The air stream of long-term high speed is generated in first cabinet of part, so as to avoid the risk of accumulation dust damage equipment, Ye Jiti
The service life of laser display apparatus is risen.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the cooling system of laser display apparatus provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of the first wind liquid heat exchanger provided by the embodiment of the utility model；
Fig. 3 is the structural schematic diagram of the first fan (aerofoil fan) provided by the embodiment of the utility model；
Fig. 4 is the structural schematic diagram of filter screen provided by the embodiment of the utility model；
Fig. 5 is the theory structure schematic diagram of interior circulating air cooling device provided by the embodiment of the utility model；
Fig. 6 is the second wind liquid heat exchanger provided by the embodiment of the utility model, liquid cooling plate and electrothermal refrigeration device position
Schematic diagram；
Fig. 7 is the structural schematic diagram of the second fan (centrifugal blower) provided by the embodiment of the utility model；
Fig. 8 is the position schematic diagram of eyeglass provided by the embodiment of the utility model；
Fig. 9 is interior circulation air path and its cold air inlet in interior circulating air cooling device provided by the embodiment of the utility model
Position view.
In figure 1 above-Fig. 9,
First cabinet 1, the second cabinet 2, cold liquid supply unit 3, fluid reservoir 31, the pump housing 32, air cooling equipment 4, the first wind liquid
Heat exchanger 41, water channel 411, radiating fin 412, the first fan 42, laser writer 5, camera lens 51, eyeglass 510, laser 6,
One liquid cooling plate 7, the import 71 of the first liquid cooling plate, the outlet 72 of the first liquid cooling plate, interior circulating air cooling device 8, interior circulation air path 81,
Cold air inlet 810, the second fan 82, the second wind liquid heat exchanger 83, thermoelectric cooler 9, filter screen 10, quick coupling 11, optical fiber
12, connecting line 13.
Specific embodiment
The core of the utility model is to provide a kind of cooling system of laser display apparatus, general to solve laser display apparatus
The problem lower all over existing stability and service life.
In order to make those skilled in the art more fully understand technical solution provided by the utility model, below in conjunction with attached
The utility model is described in further detail with specific embodiment for figure.
As shown in figs. 1-9, the cooling system of a kind of laser display apparatus provided by the embodiment of the utility model, including the
One cabinet 1 and the second cabinet 2 are provided with optical device and the liquid cooling plate for carrying out liquid cooling to optical device in first cabinet 1,
Inlet and liquid outlet are provided on the tank wall of first cabinet 1, the import of liquid cooling plate is connected to inlet, the outlet of liquid cooling plate with
Liquid outlet connection；Cold liquid supply unit 3 is provided in second cabinet 2 and for carrying out wind to the liquid in cold liquid supply unit 3
Cold air cooling equipment 4, be provided on the tank wall of the second cabinet 2 and the supply opening of the outlet of cold liquid supply unit 3, with cold liquid
The liquid return hole of the inlet communication of feeding mechanism 3 and air inlet and exhaust outlet for 4 intake and exhaust of air cooling equipment, and supply opening with into
The connection of liquid mouth, liquid outlet are connected to liquid return hole.
Above-mentioned cooling system is in practical work process, through second case intracorporal cold liquid supply unit into the first cabinet
Liquid cooling plate cooling liquid is provided, so that first case intracorporal liquid cooling plate can carry out liquid cooling to optical device, realize cooling
Purpose, cooling efficiency is more efficient compared to air-cooled, while there also is provided air cooling equipment in the second cabinet, passes through air cooling equipment
Heat exchange, which is carried out, with cold liquid supply unit realizes that the liquid supplied cooling feeding mechanism keeps the liquid of lasting lower temperature,
So as to realize it is air-cooled laser display apparatus is cooled down with the mode that liquid cooling is coupled, expeditiously reduce optical device
Operating temperature.And above-mentioned cooling system is separated optical device with air cooling equipment by the first cabinet and the second cabinet,
So as to avoid the vibration of fan influence laser display apparatus optical element stability, while avoiding and being provided with optics
The air stream of long-term high speed is generated in first cabinet of device, so as to avoid the risk of accumulation dust damage equipment, namely
Improve the service life of laser display apparatus.
What needs to be explained here is that in general, the first cabinet 1 and the second cabinet 2 are all made of the production of the materials such as metal plate, aluminium
It forms, naturally it is also possible to be made using the material of other common good mechanical performances of those skilled in the art, to guarantee
It can satisfy intensity requirement under the scenes such as lifting, closed assembly, do not deform.In addition, it should be noted that, for liquid cooling plate
For structure, in order to preferably realize that its refrigeration cool-down function, material generally use copper or aluminium material, there is tortuous string in inside
Join water channel or water channel in parallel.It should also be noted that, the connection between each interface is both needed to be attached using connecting line 13.
In some specific embodiments, above-mentioned cold liquid supply unit 3 includes being sequentially connected in series in liquid return hole and supply opening
Between fluid reservoir 31 and the pump housing 32.Power is provided for cooling liquid circulation by the pump housing, the purpose for being simutaneously arranged fluid reservoir is
Occur occurring the phenomenon not filled in connecting line in order to prevent.It should be noted that the quantity of the pump housing can be one can also
To be multiple, and the form of multiple pump housings in parallel or in series can be used to promote liquid circulation flow, practical application mistake
Cheng Zhong can be set according to actual needs.In addition, deionized water or second can be used for the liquid working substance in fluid reservoir
Two alcohol solutions all have preferable heat exchange property, and can prevent the oxidation corrosion of device.It can certainly be using this
Liquid working substance is used in other common coolings of field technical staff.
It is directly driven it is further to note that the pump housing 32 is generally selected by the minitype high voltage head of driven by Brush-Less DC motor
Pump.It can certainly be using other common pump housings of those skilled in the art, as long as can be realized the power transmission of liquid.
In addition, observing the liquid level of the liquid in fluid reservoir 31 for convenience, above-mentioned fluid reservoir 31 can use transparent tank body, or be
Liquid level sensor is provided on fluid reservoir 31.
In further embodiment, the specific structure of above-mentioned air cooling equipment 4 includes the first wind liquid heat exchanger 41 and is used for
The first air-cooled fan 42 is carried out to the first wind liquid heat exchanger 41.The air inlet of the second cabinet 2 is entered by the first fan
The radiating fin of air and the first wind liquid heat exchanger carries out heat exchange, to realize to the liquid work for flowing through the first wind liquid heat exchanger
Matter is cooled down.Also, in practical application arrangement, above-mentioned first wind liquid heat exchanger 41 be can be set in the pump housing 32 and feed flow
Between mouthful, be also possible to be set between liquid return hole and fluid reservoir 31, also or be arranged in simultaneously the pump housing 32 and supply opening it
Between between liquid return hole and fluid reservoir 31.The utility model embodiment preferably uses while being arranged between the pump housing 32 and supply opening
Between liquid return hole and fluid reservoir 31, can be realized liquid working substance in this way returns liquid cooling but, while can also realize that feed flow advances
Row secondary cooling enhances the cooling effect to liquid working substance, to further improve the cooling capacity of liquid cooling plate.
What needs to be explained here is that in general, it is provided with multiple water channels 411 on the first wind liquid heat exchanger 41 and gathers
Radiating fin 412, and the first wind liquid heat exchanger generally uses copper or aluminium material, and water channel quantity is greater than ten, frame
It is provided with fixing screws hole location corresponding with the first fan structure.Certainly those skilled in the art should be understood that,
For water channel and radiating fin on first wind liquid heat exchanger 41 in order to realize good heat dissipation effect, the two should be thermally conductive
Material of good performance is made, and is typically chosen metal material, such as the metal materials such as aluminium or copper.The first of above structure
Wind liquid heat exchanger 41 is conducted the heat of liquid working substance to radiating fin by water channel, is then carried out by the first fan air-cooled
It is cooling, to realize the cooling effect to liquid working substance.
Furthermore it should be noted that uniformity in order to guarantee the whole heat exchange of the first wind liquid heat exchanger 41, in general,
The quantity of first fan 42 corresponding to above-mentioned first wind liquid heat exchanger 41 is multiple, and the windward side of the first wind liquid heat exchanger 41
Product is not less than the total sectional area of its corresponding first fan 42.The particular number of certain first fan is also needed according to the first wind liquid
The specific area of heat exchanger carries out setting selection.
It is further to note that in general, above-mentioned first fan 42 is preferably axial cooling fan, actually answer certainly
With that in the process, can also use other common fan types of those skilled in the art, only the utility model is preferably used
Axial cooling fan.
In some more specifical embodiments, above-mentioned optical device generally specifically includes laser writer 5 and laser
Device 6, liquid cooling plate include for carrying out the first cooling liquid cooling plate 7 to laser writer 5 and for carrying out cooling to laser
Second liquid cooling plate.First liquid cooling plate 7 should have feed liquor interface 71 and out liquid interface 72, and the second liquid cooling plate should also have accordingly
Feed liquor interface and out liquid interface；In addition, it should be noted that, laser writer generally comprises camera lens 51, and laser writer 5 with
It is generally connected by optical fiber 12 between laser 6, naturally it is also possible to using the propagation of other common light of those skilled in the art
Laser, is input in laser writer (LCD) by medium connection for example, optical wand also can be used.For art technology
For personnel, it should be able to all know, there is semiconductor laser generator inside laser, can produce white laser, laser
Device uses liquid-cooling heat radiation mode, and corresponding second water-cooled plate should also have corresponding disengaging fluidic interface；And in general, swash
The quantity of light device 6 is either one or more, can be configured according to actual needs in practical application, general laser
The quantity of device is 1-3.It also should be noted that above-mentioned first liquid cooling plate 7 and the second liquid cooling plate can be serially connected in feed liquor
Between mouth and liquid outlet, it is also possible to be connected in parallel between inlet and liquid outlet.
In some more specifical embodiments, optical device is cooled down in order to preferably realize, it is above-mentioned
Interior circulating air cooling device 8 is additionally provided in first cabinet 1, interior circulating air cooling device 8 follows including interior circulation air path 81, setting
The second fan 82 and the second wind liquid heat exchanger 83 in ring air duct 81；Second wind liquid heat exchanger 83, for make the first liquid cooling plate 7 with
Air in interior circulation air path 81 completes heat exchange；Interior circulation air path 81, for it will complete heat exchange with the first liquid cooling plate 7 after
Cryogenic air is delivered to laser writer 5.It should be noted that being delivered to laser writer here, mainly refer to laser
Eyeglass 510 in the camera lens 51 of display 5 cools down.And LCD generally comprises three groups of eyeglasses, and general arrangement in the shape of " pin ",
Light transmission is needed at eyeglass 510, therefore its cavity for nearby having the shell of interior circulation air path 81 to be formed is not installed scattered herein as optical path
Hot component, but have cold air inlet 810 and hot-blast outlet, convenient for air-flow and eyeglass convection current occurs for 810 face LCD of cold air inlet
Heat exchange.In addition to this, in order to avoid gas exchanges occur with environment, the edge of interior circulation air path 81 is generally required using sealing strip
Or sealant is sealed.
In further embodiment, in order to enable carrying out heat exchange between the first liquid cooling plate and the second wind liquid heat exchanger
Effect it is more preferable, be generally additionally provided with thermoelectric cooler 9, and thermoelectricity between the first liquid cooling plate 7 and the second wind liquid heat exchanger 83
The radiating surface of refrigerator 9 is contacted with the first liquid cooling plate 7, the substrate of the chill surface of thermoelectric cooler 9 and the second wind liquid heat exchanger 83
Contact, the radiating fin of the second wind liquid heat exchanger 83 are located in interior circulation air path 81.And for the specific number of thermoelectric cooler 9
Amount, needs to be selected according to actual refrigerating capacity, and in general, the monolithic maximum cooling capacity of thermoelectric cooler 9 is higher than 80W, leads to
In normal situation, placing 1 to 4 thermoelectric cooler can meet demand.In addition, it should be noted that, the second wind liquid heat exchanger 83
Material for air-cooled radiating fin generally selects the metal with high thermal conductivity coefficient such as copper, aluminium, to reduce the temperature at this
Gradient reinforces heat exchange；And the specific form for corresponding to radiating fin can be straight parallel arrangement, can also be columnar arrays wing
The forms such as piece, corrugated fin, bending fin, and fin size, spacing can be adjusted according to actual arrangement demand.
In order to further enhance the efficiency of heat transfer, heat radiation ability, in thermoelectric cooler 9, the second wind liquid heat exchanger
83 and liquid cooling plate 7 heat-exchange surface on be provided with heat conducting coating.Specifically, which can be heat-conducting silicone grease, solid-state
Heat conductive pad, liquid metal etc..
In further embodiment, above-mentioned second fan 82 is preferably centrifugal blower, in certain actual application,
Can also be using other common blower types of art technology, only the utility model preferably uses centrifugal blower.
In some more specifical embodiments, the impurity such as dust and oil droplet enter the second cabinet in order to prevent, above-mentioned
Filter screen 10 is additionally provided at air inlet.It should be noted that the specific constructive form of filter screen can select folded fibre, gold
Belong to strainer, bag filter etc., as long as the filtering material of filtering dust and oil droplet effect can be played.
In order to which two cabinets are more easily carried out separation maintenance, convenient for the online upgrading of system, preferably two cabinets
Water route using quick coupling connect namely supply opening and inlet between fast quick access is all made of between liquid outlet and liquid return hole
First 11 connection.
In order to which those skilled in the art better understand the technical solution of the utility model, below with reference to laser display apparatus
The whole work process of preferred embodiment of cooling system be briefly described:
In the second cabinet, it need to be filled in fluid reservoir before operation liquid working substance (working medium generally taken water as a solvent),
And make working medium circulation full of each liquid cooling component (referring mainly to liquid cooling plate and its connecting line 13 here).In operational process, liquid is returned
High-temp liquid is flowed at quick coupling at mouthful, liquid enters first the first wind liquid heat exchanger and once exchanged heat, empty herein
Gas and liquid have independent access respectively, and the two is not in contact, but heat exchange can occur by metal water channel and fin,
To reduce the temperature of liquid, hereafter liquid enters water tank, enters pump entrance, water pump under the pressure difference effect that water pump is formed
Liquid pressurization is rotated to be by impeller, highly pressurised liquid enters second the first wind liquid heat exchanger, and liquid is further cooled down, this
Water at low temperature flows out the second cabinet by supply opening quick coupling afterwards.Since in the second cabinet, air passes through ability after filter screen
Impurity into the second cabinet, therefore in air is filtered out, and flow velocity is promoted under the action of the first fan, and pass through the first wind
The fin of liquid heat exchanger absorbs heat, flows out cabinet using the supply opening being arranged on tank wall.The liquid flowed out out of second cabinet
Body enters in the first cabinet, and in the first cabinet, liquid is flowed by cryogenic liquid (after cooling by quick coupling at inlet
Liquid), liquid cooling plate corresponding to liquid flowing through laser and laser writer (LCD) absorbs the heat of light source and eyeglass, is
It cools down, and hereafter fluid temperature increases, and enters the second cabinet by the quick coupling that liquid outlet goes out, completes a liquid cooling at this time and follow
Ring cooling process.The inside of first cabinet do not occur air flowing, in first case intracorporal interior circulating air cooling device in
In circulation air path 81 (air duct is closed ducting system), inner air obtains the power of circulation by centrifugal blower, passes through
Centrifugal blower flows through independent ventiduct behind outlet, and wind speed is promoted at cold air inlet 810, carries out heat convection with the LCD of high temperature, this
The gap for entering radiating fin afterwards, transfers heat to fin and substrate, then sucked by centrifugal blower, and completion one is air-cooled to follow
Ring.Radiating fin and substrate transfer heat to the chill surface of thermoelectric cooler (TEC) during being somebody's turn to do, and liquid cooling plate and TEC radiate
Face contact is absorbed heat by way of heat transfer, then exchanged heat with the liquid of internal flow.After this circulation, LCD
Heat be passed in liquid, complete wind liquid coupling heat dissipation circulation at this time.
Above-mentioned cooling system is effectively reduced at LCD firstly, using liquid cooling and the air-cooled radiating mode being coupled of TEC
Air themperature improves the radiating efficiency of system, can effectively improve stability and the service life of display equipment, prevents to export image
The case where deformation, promotes display effect；Secondly, mainly accommodating the second cabinet of thermal component and main accommodating the of optical device
One cabinet mutually separates, the devices such as dry pump, fan in the first cabinet, greatly reduces the risk of liquid leakage, prevents liquid pair
Optical device has an adverse effect；Again, with the external world gas exchanges do not occur for the first cabinet, avoid the impurity such as dust, sandy soil
Accumulation influences device stability, so as to use in the engineering of the bad environments such as subway projection scene；In addition, the first cabinet and
It is connected between second cabinet using quick coupling, two cabinets is subjected to separation maintenance with can be convenient, convenient for the online of system
Upgrading；Finally, using high refrigerating capacity TEC in LCD radiator, guarantee the high brightness output of light source, and has the independent closed of LCD
Air duct, flow velocity is higher at LCD, using high-head centrifugal blower, can overcome the flow resistance inside air duct, provide for LCD
High speed blow-through air-flow, strengthens heat loss through convection at this.
The cooling system of laser display apparatus provided by the utility model is described in detail above.It needs to illustrate
, all the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with its
The difference of his embodiment, the same or similar parts between the embodiments can be referred to each other.
It should also be noted that, herein, such as the terms "include", "comprise" or its any other variant are intended to contain
Lid non-exclusive inclusion, so that article or equipment including a series of elements not only include those elements, but also
It including other elements that are not explicitly listed, or further include for this article or the intrinsic element of equipment.Do not having
In the case where more limitations, the element that is limited by sentence "including a ...", it is not excluded that in the article including above-mentioned element
Or there is also other identical elements in equipment.
Specific case used herein is expounded the principles of the present invention and embodiment, above embodiments
Explanation be merely used to help understand the core concept of the utility model.It should be pointed out that for the ordinary skill of the art
For personnel, without departing from the principle of this utility model, several improvements and modifications can be made to this utility model,
Modifications and modifications also fall within the protection scope of the claims of the utility model.
Claims (18)
1. a kind of cooling system of laser display apparatus, which is characterized in that described including the first cabinet (1) and the second cabinet (2)
Optical device and the liquid cooling plate for carrying out liquid cooling to the optical device, first cabinet are provided in first cabinet (1)
(1) inlet and liquid outlet are provided on tank wall, the import of the liquid cooling plate is connected to the inlet, the liquid cooling plate
Outlet is connected to the liquid outlet；
Cold liquid supply unit (3) is provided in second cabinet (2) and for the liquid in the cold liquid supply unit (3)
Carry out air-cooled air cooling equipment (4), be provided on the tank wall of second cabinet (2) with the cold liquid supply unit (3) go out
The supply opening of mouthful connection, with the liquid return hole of the inlet communication of the cold liquid supply unit (3) and for the air cooling equipment (4) into
The air inlet and exhaust outlet of exhaust, and the supply opening is connected to the inlet, the liquid outlet is connected to the liquid return hole.
2. the cooling system of laser display apparatus as described in claim 1, which is characterized in that the cold liquid supply unit (3)
Including the fluid reservoir (31) being sequentially connected in series between the liquid return hole and the supply opening and the pump housing (32).
3. the cooling system of laser display apparatus as claimed in claim 2, which is characterized in that the pump housing (32) is by direct current
The minitype high voltage head of brushless motor driving directly drives pump.
4. the cooling system of laser display apparatus as claimed in claim 2, which is characterized in that the fluid reservoir (31) is transparent
Tank body, and or the fluid reservoir (31) on be provided with liquid level sensor.
5. the cooling system of the laser display apparatus as described in any one of claim 2-3, which is characterized in that the air-cooled dress
(4) are set to include the first wind liquid heat exchanger (41) and be used to carry out the first wind liquid heat exchanger (41) in the first air-cooled fan
(42)。
6. the cooling system of laser display apparatus as claimed in claim 5, which is characterized in that the first wind liquid heat exchanger
(41) be set between the pump housing (32) and the supply opening and/or be set to the liquid return hole and the fluid reservoir (31) it
Between.
7. the cooling system of laser display apparatus as claimed in claim 5, which is characterized in that the first wind liquid heat exchanger
(41) multiple water channels (411) and densely covered radiating fin (412) are provided on.
8. the cooling system of laser display apparatus as claimed in claim 5, which is characterized in that the first wind liquid heat exchanger
(41) quantity of the first fan (42) corresponding to is multiple, and the front face area of the first wind liquid heat exchanger (41) is not less than
The total sectional area of its corresponding first fan (42).
9. the cooling system of laser display apparatus as claimed in claim 5, which is characterized in that first fan (42) is axis
Wandering Hot-air fan.
10. the cooling system of the laser display apparatus as described in any one of claim 1-4,6-9, which is characterized in that described
Optical device includes laser writer (5) and laser (6), the liquid cooling plate include for the laser writer (5) into
Cooling the first liquid cooling plate (7) of row and the second liquid cooling plate for carrying out cooling to the laser.
11. the cooling system of laser display apparatus as claimed in claim 10, which is characterized in that first liquid cooling plate (7)
It is serially connected between the inlet and the liquid outlet with second liquid cooling plate.
12. the cooling system of laser display apparatus as claimed in claim 10, which is characterized in that first liquid cooling plate (7)
It is connected in parallel between the inlet and the liquid outlet with second liquid cooling plate.
13. the cooling system of laser display apparatus as claimed in claim 10, which is characterized in that in first cabinet (1)
It is additionally provided with interior circulating air cooling device (8), the interior circulating air cooling device (8) includes interior circulation air path (81), is arranged described
The second fan (82) and the second wind liquid heat exchanger (83) in interior circulation air path (81)；
The second wind liquid heat exchanger (83), for making the sky in first liquid cooling plate (7) and the interior circulation air path (81)
Gas completes heat exchange；The interior circulation air path (81) is empty for that will complete the low temperature after heat exchange with first liquid cooling plate (7)
Gas is delivered to laser writer (5).
14. the cooling system of laser display apparatus as claimed in claim 13, which is characterized in that first liquid cooling plate (7)
It is additionally provided with thermoelectric cooler (9) between the second wind liquid heat exchanger (83), and the radiating surface of the thermoelectric cooler (9)
It is contacted with first liquid cooling plate (7), the base of the chill surface of the thermoelectric cooler (9) and the second wind liquid heat exchanger (83)
Plate contact, the radiating fin of the second wind liquid heat exchanger (83) are located in the interior circulation air path (81).
15. the cooling system of laser display apparatus as claimed in claim 14, which is characterized in that the thermoelectric cooler (9),
Heat conducting coating is provided on the heat-exchange surface of the second wind liquid heat exchanger (83) and the liquid cooling plate (7).
16. the cooling system of laser display apparatus as claimed in claim 13, which is characterized in that second fan (82) is
Centrifugal blower.
17. the cooling system of the laser display apparatus as described in any one of claim 1-4,6-9 and 11-16, feature exist
In being additionally provided with filter screen (10) at the air inlet.
18. the cooling system of the laser display apparatus as described in any one of claim 1-4,6-9 and 11-16, feature exist
In, be all made of between the liquid outlet and the liquid return hole between the supply opening and the inlet quick coupling (11) even
It connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920376561.XU CN209356836U (en) | 2019-03-22 | 2019-03-22 | A kind of cooling system of laser display apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920376561.XU CN209356836U (en) | 2019-03-22 | 2019-03-22 | A kind of cooling system of laser display apparatus |
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| CN209356836U true CN209356836U (en) | 2019-09-06 |
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| CN201920376561.XU Active CN209356836U (en) | 2019-03-22 | 2019-03-22 | A kind of cooling system of laser display apparatus |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021163948A1 (en) * | 2020-02-20 | 2021-08-26 | 京东方科技集团股份有限公司 | Heat dissipation driving device, heat dissipation driving system, backlight module, and display device |
| CN115793171A (en) * | 2022-11-22 | 2023-03-14 | 深圳市灿锐科技有限公司 | System for be used for forced air cooling of camera lens internal circulation |
-
2019
- 2019-03-22 CN CN201920376561.XU patent/CN209356836U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021163948A1 (en) * | 2020-02-20 | 2021-08-26 | 京东方科技集团股份有限公司 | Heat dissipation driving device, heat dissipation driving system, backlight module, and display device |
| CN115793171A (en) * | 2022-11-22 | 2023-03-14 | 深圳市灿锐科技有限公司 | System for be used for forced air cooling of camera lens internal circulation |
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Address after: Room 401, room 402, building 1, Zone C, industrial square, science and Technology City, 588 Wutaishan Road, high tech Zone, Suzhou City, Jiangsu Province, 215000 Patentee after: Jiangsu radium Technology Co.,Ltd. Address before: 100176 Room 502, 5 / F, block B, building 19, Han's enterprise Bay, yard 8, Liangshuihe Second Street, Beijing Economic and Technological Development Zone, Beijing Patentee before: BEIJING LITRONICS OPTOELECTRONICS TECHNOLOGY Co.,Ltd. |
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