CN1960618B - Cooling apparatus for flat display device - Google Patents
Cooling apparatus for flat display device Download PDFInfo
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- CN1960618B CN1960618B CN2006101318407A CN200610131840A CN1960618B CN 1960618 B CN1960618 B CN 1960618B CN 2006101318407 A CN2006101318407 A CN 2006101318407A CN 200610131840 A CN200610131840 A CN 200610131840A CN 1960618 B CN1960618 B CN 1960618B
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- bonnet
- air
- air outlet
- impeller
- display apparatus
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/28—Cooling arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
- H01J11/20—Constructional details
- H01J11/34—Vessels, containers or parts thereof, e.g. substrates
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/16—Vessels; Containers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20954—Modifications to facilitate cooling, ventilating, or heating for display panels
- H05K7/20972—Forced ventilation, e.g. on heat dissipaters coupled to components
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- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
There is provided a cooling apparatus for a flat display device. The cooling apparatus includes a flat display module, a front cover for protecting a front portion of the flat display module, a back cover for protecting a rear portion of the flat display module, an air inlet formed on a portion of the back cover to allow external air to be introduced into the back cover, an air outlet formed on another portion of the back cover and extending along a longitudinal length of the flat panel display module; a fan disposed inside the back cover and aligned with the air outlet formed on the back cover, and an air outlet channel formed in the back cover and aligned with the air outlet formed on the back cover, the air outlet having an effective exhaust area having a longitudinal length extending in a longitudinal direction of the flat display module.
Description
Technical field
The present invention relates to panel display apparatus, especially, relate to the cooling device that is used for panel display apparatus, it can low-noise operation, fast internal heat is dispersed into the outside simultaneously.
Technical background
Not as cathode ray tube (CRT), flat-panel monitor uses the drive circuit that is arranged in matrix pattern to come different ground actuate pixel, thereby realizes image.Recently, panel display apparatus is widely used, because it has the advantage that occupies quite little space.Various flat display modules such as LCD (LCD), Field Emission Display (FED), plasma display panel (PDP) and electroluminescence (EL) have been applied to panel display apparatus.
Compare with CRT, panel display apparatus utilizes the thickness that reduces of flat display module.But because many heat producing components must be contained in the small space of display unit, in the operating process of flat display module, the heat that in panel display apparatus, is produced by the heat producing component must be dispersed into the outside effectively.
Particularly, under the situation of PDP,, produce a large amount of heats because image realizes through the electron discharge of discharge gas.Therefore, if a large amount of heat is not promptly distributed, display unit can break down.Needless to say, under the situation of another kind of panel display apparatus, heat dispersion is the important factors of its quality of decision.
For heat radiation partly, fin connects the back side of the particular components that produces a large amount of heats, with the cooling particular components.And, in order to dispel the heat, form many holes usually covering of panel display apparatus, make cold air can pass through the hole.But although can expect the cooling effect of particular components, heat is not dispersed into the outside effectively.Therefore, panel display apparatus can not stably be worked.That is, the internal temperature of panel display apparatus raises, the performance of deterioration panel display apparatus.
In order to address the above problem, axial fan is along the rear center's part that is installed to bonnet perpendicular to the direction that forms display unit.Axial fan is forced the internal high temperature air of panel display apparatus is discharged to the outside through the back of display unit.In this case, although the heat of assembling in the display unit can be discharged into the outside effectively, in the axial fan course of work, produce excessive noise.And, must provide 10 centimetres or at the back side of display unit and between the walls greater than 10 centimetres gap, make air to be discharged from.In addition, because the gap between axial fan and the flat display module and the thickness of axial fan, the whole thickness of panel display apparatus increases.
And the hole of passing through of discharge and input air forms on bonnet.The hole of bonnet reduces the intensity of bonnet.Therefore, bonnet must be enough thick.In this case, manufacturing cost increases.
Summary of the invention
Therefore, the present invention is directed to the cooling device that is used for panel display apparatus, it is eliminated basically because the restriction of background technology and one or more problems that shortcoming causes.
The purpose of this invention is to provide the cooling device that is used for panel display apparatus, it is designed so that the internal heat that panel display apparatus is littler and distribute panel display apparatus effectively.
Another object of the present invention makes the cooling device that is provided for panel display apparatus, and it can minimize noise and make with low-cost.
Another purpose of the present invention makes the cooling device that is provided for panel display apparatus, and it can minimize noise and improve radiating efficiency through letting the inner air of panel display apparatus be discharged from through free convection.
Another purpose of the present invention makes the cooling device that is provided for panel display apparatus, and it improves the installation degree of freedom of display unit through the airflow direction that improves panel display apparatus.
Another purpose of the present invention makes the cooling device that is provided for panel display apparatus, and it is through improving in the position in the hole that bonnet forms and the intensity that structure can increase bonnet.
Another purpose of the present invention makes the cooling device that is provided for panel display apparatus, and it can improve the functional reliability of panel display apparatus.
Another purpose of the present invention makes the cooling device that is provided for panel display apparatus, even for large-sized panel display apparatus, it can provide high cooling efficiency.
Set forth in other advantage of the present invention, purpose and the characteristic ground specification below, part is conspicuous according to following test concerning those of ordinary skills, maybe can learn from enforcement of the present invention.Through the concrete structure that proposes and its claim and accompanying drawing in written description, can realize and obtain objects and advantages of the present invention.
In order to realize these purposes and other advantage, according to the object of the invention, as imbody and extensively description, a kind of cooling device that is used for panel display apparatus is provided here, comprising: flat display module; Be used to protect the protecgulum of flat display module front portion; Be used to protect the bonnet at flat display module rear portion; Air intake, it is formed on the part of bonnet, lets extraneous air be input in the bonnet; Air outlet slit, it is formed on another part of bonnet, and extends along the longitudinal length of flat display module; Fan, it is arranged on bonnet inside, and aims at the air outlet slit that on bonnet, forms, and this fan comprises impeller and is installed in the inner top of said panel display apparatus; Housing, it comprise be arranged on said impeller front and with the isolated volute of said impeller and be arranged on said impeller back and with the isolated stabilizer of said impeller; Said housing contacts with said bonnet; And air outlet passage, it is formed on the bonnet and with on bonnet, forming air outlet slit and aims at, and air outlet slit has effective discharging area, and it has along the longitudinal length of flat display module longitudinal extension.
Another aspect of the present invention provides a kind of cooling device that is used for panel display apparatus, comprising: flat display module; Protecgulum is used to protect the front portion of said flat display module; Bonnet is used to protect the rear portion of said flat display module; Air intake, it is formed on the part of bonnet, lets extraneous air be input in the bonnet; Air outlet slit, it is formed on another part of stating bonnet; Sirocco fan, it is inner that it is arranged on said bonnet, and aim at said air outlet slit, and said sirocco fan comprises opposite end housing that opens wide and the impeller that is arranged in this housing; The air-flow guide part, said air-flow guide part is from the top downwarping of said housing; Wherein air outlet passage is formed on the lid and with the air outlet slit that on lid, forms and aims at, and air outlet slit has effective discharging area, and it has along the longitudinal length of flat display module longitudinal extension.
Should be appreciated that aforementioned total description of the present invention and following detailed description are exemplary with indicative, intend that described the present invention provides further explanation to claim.
Description of drawings
Comprise the accompanying drawing diagram embodiments of the invention that further understanding of the present invention are provided and combine and constitute the application's a part in this application, and explain principle of the present invention with specification.In the accompanying drawings:
Fig. 1 is the perspective view that has the panel display apparatus of cooling device according to the embodiment of the invention;
Fig. 2 is that the broken section of the panel display apparatus of Fig. 1 passes through figure;
Fig. 3 is the cutaway view of cutting open along hatching I-I ';
Fig. 4 is the perspective view of the panel display apparatus of Fig. 2, wherein omits impeller and motor;
Fig. 5 is the cutaway view of cutting open along hatching II-II ';
Fig. 6 is the rearview of the panel display apparatus of Fig. 1;
Fig. 7 is the perspective view that has the panel display apparatus of cooling device according to another embodiment of the present invention;
Fig. 8 is the partially cutaway view of the panel display apparatus 7 of Fig. 7;
Fig. 9 is the rearview of the panel display apparatus 7 of Fig. 7;
Figure 10 is the perspective view that has the panel display apparatus of cooling device according to another embodiment of the present invention;
Figure 11 is the rearview of the panel display apparatus of Figure 10;
Figure 12 is the rearview that has the panel display apparatus of cooling device according to another embodiment of the present invention; With
Figure 13 is the rearview that has the panel display apparatus of cooling device according to another embodiment of the present invention.
Embodiment
Now specifically with reference to graphic the preferred embodiments of the present invention in the accompanying drawing.As long as maybe, in institute's drawings attached, identical reference symbol is meant same or similar parts.
[first embodiment]
Fig. 1 is the perspective view according to the panel display apparatus of the embodiment of the invention.
With reference to Fig. 1, the panel display apparatus 1 of present embodiment comprises flat display module 2, be used to support and protect flat display module 2 the front portion protecgulum 3 and be used to support and protect the bonnet 4 at the rear portion of flat display module 2.The air outlet slit 5 of discharging the internal heat air of panel display apparatus 1 is formed on the upper periphery of bonnet 4.Air outlet slit 5 has a plurality of slits.Slit is arranged to not reduce the intensity of bonnet 4.That is, air outlet slit 5 is the parts that in bonnet 4, are provided with, and its interior zone has the accumulation type slit.
The work of cooling device of the present invention is described referring now to above-mentioned panel display apparatus.
When panel display apparatus 1 work, in flat display module 2, produce a large amount of heat.At this moment, the air cooling that the Hot air quilt that produces from the heater element that is arranged on flat display module 2 back sides gets into.Then, hot-air then, is discharged through upper air outlet 5 to the upper reaches.This is the free convection of discharging the hot-air of panel display apparatus, thereby improves cooling effectiveness.With regard to this point, more preferably let extraneous air import, and discharge through the whole zone at display unit 1 rear portion through the whole zone of panel display apparatus 1 bottom.
And air outlet slit 5 is arranged on the sloping portion of back lid frame, make hot-air upwards to discharge, thereby hot-air can more effectively flow.
In addition, because the face exposure of flat display module 2 to the outside, is therefore enough distributed through the free convection of extraneous air from the display module 2 positive heat energy that produce fast.
Fig. 2 is the partially cutaway view of the panel display apparatus 1 of Fig. 1.
With reference to Fig. 2, cross flow fan 7 vertically is installed in the top of panel display apparatus 1 inside along panel display apparatus 1.Because cross flow fan 7, the end face of bonnet 4 provide the internal heat air to be discharged to the gap of outside.Because hot-air can be discharged by the end face through bonnet 4, so air discharges and can more effectively realize reducing gas-flow resistance and pneumatic noise, thereby improves the radiating efficiency of panel display apparatus.
Describe cross flow fan 7 in more detail, cross flow fan 7 comprises along the impeller of vertical setting of bonnet 4 (Fig. 3 10) and is used for vertically dividing impeller 10 by predetermined space and improving the disk of the intensity of impeller along impeller 10.Cross flow fan 7 also comprises the driving shaft 15 that connects motor 14.The rotatory force of motor 14 is transferred to cross flow fan through driving shaft 15.
Impeller 10 is arranged in the housing 18, steering current when impeller 10 rotates.Housing 18 comprise be arranged on impeller 10 fronts and with impeller 10 isolated volutes 12 and be arranged on impeller 10 back and with impeller 10 isolated stabilizers 13.Impeller 10 is in the drawings along clockwise rotating.
Fig. 3 is the cutaway view along hatching I-I '.
When cross flow fan 7 work, the inner air of bonnet 4 is to the upper reaches, and the guiding through volute 12 is discharged to the outside then.
As stated, because the cross flow fan 7 entire longitudinal length extension of bonnet 4 end faces fully relatively, therefore more a large amount of air can be discharged.Certainly, under the very little situation of the screen size of display unit, if do not need relative entire longitudinal length that cross flow fan 7 is set, the length of air outlet slit 5 and cross flow fan 7 can reduce.
As stated, because compared with prior art, the air discharging area increases, so gas-flow resistance and pneumatic noise can reduce.And, because hot-air discharges through bonnet 4 end faces, therefore needn't between the back surface of the wall of mount display and bonnet 4, the gap be provided.Therefore, panel display apparatus can be installed near wall, thereby accounts for the quite little interior space.
Fig. 4 is the perspective view of the panel display apparatus of Fig. 2, wherein omits impeller and motor, and Fig. 5 is the cutaway view along hatching II-II '.
The work of the cooling device of panel display apparatus of the present invention is described now.Rectangle gas channel 20 is limited between stabilizer 13 and the volute 12.Cross flow fan is installed in the gas channel 20.The cross-sectional area of gas channel 20 provides effective discharge area " S ", is used for through cross flow fan 7 air-outs.
In this embodiment, because the area of effectively discharging area " S " and bonnet 4 end faces much at one, so the inner hot-air of panel display apparatus can be fast and be discharged to the outside effectively.That is, along with effective discharge area increases, inner hot-air can be discharged quickly, and noise can further reduce, thereby further improves radiating efficiency.
In addition, when effective discharge area " S " increased, the air capacity inner through display unit increased, to improve cooling effectiveness.Therefore, needn't form other air intake and outlet opening at the back side of bonnet 4.Because on bonnet, do not have air intake and outlet, the intensity of bonnet can not reduce.Therefore, needn't utilize high-intensity steel plate to make bonnet 4, thereby reduce manufacturing cost.
Along with the screen size increase of display unit, the effective discharge area " S " that on the end face of bonnet 4, forms can further increase.Therefore, even the heat that in the panel display apparatus with large scale screen, produces increases, if increase the size of effectively discharging area " S ", heat also can distribute effectively.And, because cross flow fan 7 is installed along the entire longitudinal length of display unit, therefore not hindering other element, radiating efficiency can further improve.
The effective discharge area " S " that on the end face of bonnet 4, forms is limited the rectangular area that display unit parallel longitudinal direction side and parallel transverse side limit.That is, effectively discharge area " S " by limiting at second edge that is provided with of vertical direction (that is, panel display apparatus laterally) longitudinally along first edge of vertical setting of panel display apparatus with along panel display apparatus.Certainly, first edge has two parallel lines with second edge, has the shape of rectangle.That is, because the area of effectively discharging area " S " and bonnet 4 end faces much at one, the heat that therefore in display unit, produces is through effectively discharging outside area " S " can be discharged into fully.
Fig. 6 is the rearview of the panel display apparatus of Fig. 1.
With reference to Fig. 6, bonnet 4 further is provided with bottom air intake 16 and back air intake 17.
The element that the chilled air cools of importing through bottom air intake 16 is provided with at the back side of flat display module 2 then, is discharged through cross flow fans 7 through air outlet slit 5.
Some element produces high temperature heat (that is, power subsystem), and some element (being carrier band packaged chip (TCP)) requires cryogenic conditions.
In order to satisfy the condition of work of each element, preferably require the element of thermal stability to be provided with near bottom air intake 16, make the cold air that they can be transfused to cool off fast.In addition, the element that produces big calorimetric preferably is provided with near cross flow fan 7, and the heat that makes element produce can distribute fast, does not influence other circuit.
As stated, because cross flow fan can be along the whole length setting of bonnet 4 periphery, so the internal heat air of bonnet can discharge apace, thereby improves the radiating efficiency and the functional reliability of panel display apparatus.
[second embodiment]
Fig. 7 is the perspective view of panel display apparatus according to another embodiment of the present invention.The present embodiment panel display apparatus is similar with the panel display apparatus of Fig. 1.Therefore, different portions is only described hereinafter.
With reference to Fig. 7, the bonnet 34 that the panel display apparatus of this embodiment comprises flat display module 32, is used to support and protect the protecgulum 33 of flat display module 32 front portions and is used to support and protect panel display apparatus 32 rear portions.The left air outlet slit 51 of discharging panel display apparatus internal heat air is formed at bonnet 34 end faces with right air outlet slit 52.
Because left air outlet slit 51 is formed at the right side and the left side of bonnet 34 end faces with right air outlet slit 52, so can improve the cooling effectiveness of panel display apparatus both sides.
Fig. 8 is the partially cutaway view of the panel display apparatus of Fig. 7, and wherein panel display apparatus top is broken away.
With reference to Fig. 8, left Sirocco fan (sirocco) fan 41 is arranged on the inside of bonnet 34, and aims at left air outlet slit 51, and right sirocco fan 46 is arranged on bonnet 34 inside, and aims at right air outlet slit 52.The internal heat air is discharged through left air outlet slit 51 and right air outlet slit 52 by left sirocco fan 41 and right sirocco fan 46.
Because left sirocco fan 41 is identical with right sirocco fan 46 structures, therefore left sirocco fan 41 is only described hereinafter.
Left side sirocco fan 41 is bidirection air intake fans.Left side sirocco fan 41 comprises opposite end housing 43 that opens wide and the impeller 42 that is arranged in the housing 43.In order to simplify the structure of sirocco fan 41, motor 42 is arranged on the middle part of impeller 42.Air through the input of housing 43 opposite end upwards guides, and effectively discharges right outlet opening 45 discharges of area " S " through having rectangle.Then, air is discharged to the outside through right air outlet slit 51.
For guiding is through the air of sirocco fan 41 and the input of 46 entrance sides effectively, air ducting 50 is arranged between sirocco fan 41 and 46.Air ducting 50 is from sirocco fan 41 and 46 abutting end upside downwarpings.Air ducting plays the guiding cool air that is input to display unit to sirocco fan and prevent the effect through outlet opening 45 and 47 air-out adverse currents.
Fig. 9 is the rearview of the panel display apparatus of Fig. 7.
The element that the chilled air cools of importing through the bottom air intake is provided with at the back side of flat display module 32, then, through the guiding input sirocco fan 41 and 46 of air ducting 50.Here, air ducting 50 comprises first to fourth air-flow targeting part 61-64.Each air-flow targeting part is from the case top downwarping, thereby effectively air is directed to the opposite end of housing 43.
Air through opposite end input sirocco fan 41 and 46 is discharged to the outside by impeller 42 through outlet opening 45 and air outlet slit 51.
Limit along the longitudinal length of panel display apparatus because effectively discharge area S, so gas-flow resistance and pneumatic noise can reduce.
Because part can not realize air-flow effectively under sirocco fan 41 and 46, so the cooling of part possibly not be effective under sirocco fan 41 and 46.In order to address this problem, can further be formed on the bonnet 4 with the back air inlet openings 17 identical back air inlet openings of Fig. 6.
In this embodiment, although two sirocco fans only are set, the invention is not restricted to this.The quantity of sirocco fan can change according to the size of panel display apparatus.As stated, discharge area because the whole area of back hd top face can be effective air, so radiating efficiency can improve further.
In addition, although sirocco fan is the bidirection air intake fan, the invention is not restricted to this.That is, sirocco fan can be unidirectional supply fan, and wherein motor is installed in an end of impeller, to guide air along predetermined direction.In this case, preferred two or more sirocco fan series connection are provided with, and discharge the space to increase hot-air.Equally, gas-flow resistance and pneumatic noise also reduce.
Simultaneously, although effectively discharging area is defined as rectangle, effectively the shape of discharging area can change according to the shape of fan outlet.For example, effectively discharging area can form trapezoidal.
[the 3rd embodiment]
Figure 10 is the perspective view that has the panel display apparatus of cooling device according to another embodiment of the present invention.The panel display apparatus of present embodiment is similar with Fig. 1's.Therefore, different portions is only described hereinafter.
With reference to Figure 10, the cross flow fan 7 of present embodiment is different from Fig. 2's.That is, comprise the motor 14 that is installed in the middle part.Driving shaft 151 and 152 stretches out from the opposite end of motor 14, and is connected to impeller units 10.
Impeller units 10 comprises lobus sinister wheel 101 and lobus dexter wheel 102.Therefore, can prevent the vibration or the unsettled work that when long single impeller forms impeller units 10, cause.
Lobus sinister wheel 101 is connected single motor 14 through left driving shaft 151 with right driving axle 152 respectively with lobus dexter wheel 102.Therefore, when motor 14 work, lobus sinister wheel 101 can rotate with lobus dexter wheel 102 simultaneously.
As stated, because impeller units 10 is divided into each lobus sinister with shorter length wheel 101 and lobus dexter wheel 102, so it can stably work, and does not produce vibration and noise.That is, even the vibration transmission of working as motor 14 is vibrated and also can exceedingly do not amplified to impeller 101 and 102, therefore, can relatively reduce vibration and generation of noise, thereby improve the job stability of cross flow fan 7.
And because lobus sinister wheel 101 can pass through independently support construction supports with lobus dexter wheel 102, so the structural stability of cross flow fan 7 can improve.That is, when impeller units 10 is single whens wheel of coming into leaves, an end of impeller is connected to the driving shaft of motor, and the other end is supported on the additional supporting construction.In this case, the supporting construction of impeller units can not stably prevent the vibration of fan.
Yet in this embodiment, because the impeller units of this embodiment 10 is divided into the left side and right weak point impeller with equal length, a left side and right short impeller quilt be support construction supports independently, therefore can stably realize the integrated operation of cooling device.Even in this case,, do not increase cost because only use a motor.
And because motor is arranged between impeller 101 and 102, so the left side that impeller 101 and 102 can extend to bonnet 4 is with right inner.That is, when impeller units was the single impeller of end connection motor, because motor, impeller can not extend to the inner of back cover.Yet in this embodiment, because motor is arranged between impeller 101 and 102, so the left side that impeller 101 and 102 can extend to bonnet 4 is with right inner.Therefore, the element that is arranged on display unit two medial extremitys can be cooled off effectively.
In this embodiment, single volute 12 is used for lobus sinister wheel 101 and lobus dexter wheel 102, and single stabilizer 13 also is used for lobus sinister wheel 101 and lobus dexter wheel 102.Yet, the invention is not restricted to this situation.For example, the volute that separates can be respectively applied for lobus sinister wheel 101 and lobus dexter wheel 102.Equally, the stabilizer that separates also can be respectively applied for lobus sinister wheel 101 and lobus dexter wheel 102.
Replacedly, structure is different each other with lobus dexter wheel 102 for lobus sinister wheel 101.
Figure 11 is the rearview of the panel display apparatus of Figure 10.
With reference to Figure 11, except lobus sinister wheel 101 and lobus dexter wheel 102 through being arranged on motor 14 between them stably rotates, the cooling work of this embodiment is identical with Fig. 6 basically.
[the 4th embodiment]
Figure 12 is the rearview that has the panel display apparatus of cooling device according to another embodiment of the present invention.Except the structure of cross flow fan, the panel display apparatus of this embodiment is identical with Figure 10 basically.Therefore, different portions is only described hereinafter.
With reference to Figure 12, the cross flow fan of this embodiment comprises first and second cross flow fans 71 and 72, rotates first and second motors 73 and 74 of first and second cross flow fans 71 and 72 respectively.First and second electrodes 73 and 74 are installed in respectively on the outer end of first and second cross flow fans 71 and 72.Like this, in cross flow fan, only impeller can be divided into two impellers, or comprises that the entire body of volute and stabilizer can be divided into two parts.
This embodiment can be applied to large-sized panel display apparatus.That is, when the size of panel display apparatus increased, the length of cross flow fan also increased.In this case, long cross flow fan can not be worked through single motor effectively.Therefore, cross flow fan is divided into two fans, and two fans are worked with independent motor respectively.
[the 5th embodiment]
Figure 13 is the rearview that has the panel display apparatus of cooling device according to another embodiment of the present invention.Except the structure of cross flow fan, the panel display apparatus of the present embodiment panel display apparatus with Figure 10 and 12 basically is identical.Therefore, different portions is only described hereinafter.
With reference to Figure 13, the cross flow fan of present embodiment comprises first and second cross flow fans 81 and 82, rotates first and second motors 83 and 84 of first and second cross flow fans 81 and 82 respectively.First and second motors 83 and 84 are installed in the inner of each first and second cross flow fan 81 and 82 respectively.Like this, in cross flow fan, only impeller can be divided into two impellers, or comprises that the entire body of volute and stabilizer can be divided into two parts.
Present embodiment can be applied to large-sized panel display apparatus.That is, when the size of panel display apparatus increased, the length of cross flow fan also increased.In this case, long cross flow fan can not be worked through single motor effectively.Therefore, cross flow fan is divided into two fans, and two fans are worked with independent motor respectively.And present embodiment can be suitable for cooling off the corner portions located of panel display apparatus, and it is different from the 4th embodiment.
In the above-described embodiments, although two cross flow fans only are provided, the invention is not restricted to this.That is, the size according to display unit can provide more than three cross flow fans.
According to the present invention, because the space of blower fan need be installed, panel display apparatus can be arranged to narrower, and enough radiating effects are provided simultaneously.
And because the shape that air exit forms is similar with the cross section of panel display apparatus, structure is simplified, and pneumatic noise can minimize.
Because the internal heat air of panel display apparatus can be discharged through negative pressure and free convection that fan produces, in display unit, can realize air circulation effectively.
Through improving the airflow direction of panel display apparatus, cooling device can improve the installation degree of freedom of display unit.
Through improving the position and the structure in the hole that on bonnet, forms, cooling device of the present invention can improve the intensity of bonnet.
Through letting the inner air of panel display apparatus discharge through free convection, cooling device can minimize noise and improve radiating efficiency.
Because fan can stably be supported, the functional reliability of fan can improve, and the vibration that in the fan rotation process, produces can reduce.
Even when cooling load and very high to the rotary resistance of fan, rotatory force can corresponding its increase.Therefore, even can reach cooling effect in the corner of panel display apparatus.
When cross flow fan was divided into two fans, independent motor offered fan respectively, and the rotating speed of cross flow fan can respond the internal thermal load of panel display apparatus and control, thereby suitably cools off panel display apparatus.
Obviously, those of ordinary skill in the art can make various modification and variation to the present invention.Therefore, mean modification of the present invention and the variation that the present invention covers to be provided in the scope of accessory claim and their equivalent.
Claims (11)
1. cooling device that is used for panel display apparatus comprises:
Flat display module;
Protecgulum is used to protect the front portion of said flat display module;
Bonnet is used to protect the rear portion of said flat display module;
Air intake, said air intake is formed on the part of said bonnet, lets extraneous air be input in the said bonnet;
Air outlet slit, said air outlet slit is formed on another part of said bonnet, and extends along the longitudinal length of said flat display module;
It is inner that fan, said fan are arranged on said bonnet, and aim at said air outlet slit; This fan comprises impeller and is installed in the inner top of said panel display apparatus; With
Housing, said housing comprises:
Volute, said volute are arranged on said impeller front and spaced apart with said impeller;
With
Stabilizer, said stabilizer are arranged on said impeller back and spaced apart with said impeller, and said housing contacts with said bonnet;
Air outlet passage; Said air outlet passage is aimed at said air outlet slit; Said air outlet passage provides effective discharging area, and it forms like this, makes the said flat display module length length of being longer than said panel display apparatus other direction longitudinally.
2. cooling device as claimed in claim 1, wherein said air outlet passage has the square-section.
3. cooling device as claimed in claim 1, wherein said fan is a cross flow fan.
4. cooling device as claimed in claim 1, wherein said air outlet slit is formed at the peripheral part of said bonnet.
5. cooling device as claimed in claim 1, the air intake of wherein said bonnet are formed on the peripheral part and/or the back side of said bonnet.
6. cooling device that is used for panel display apparatus comprises:
Flat display module;
Protecgulum is used to protect the front portion of said flat display module;
Bonnet is used to protect the rear portion of said flat display module;
Air intake, said air intake is formed on the part of said bonnet, lets extraneous air be input in the said bonnet;
Air outlet slit, said air outlet slit are formed at the left side and the right side of the end face of said bonnet;
Left side sirocco fan, it is inner that said left sirocco fan is arranged on said bonnet; With
Right sirocco fan, it is inner that said right sirocco fan is arranged on said bonnet,
Wherein said cooling device also comprises air ducting, and said air ducting is arranged between said left sirocco fan and the said right sirocco fan; With
Housing, said housing comprises:
Volute, said volute are arranged on said impeller front and spaced apart with said impeller;
With
Stabilizer, said stabilizer are arranged on said impeller back and spaced apart with said impeller, and said housing contacts with said bonnet;
Air outlet passage; Said air outlet passage is aimed at said air outlet slit; Said air outlet passage provides effective discharging area, and it forms like this, makes the said flat display module length length of being longer than said panel display apparatus other direction longitudinally.
7. cooling device as claimed in claim 6, wherein said air ducting comprise the first air-flow targeting part to the, four air-flow targeting parts, and the said first air-flow targeting part to the, four air-flow targeting parts are respectively from the top downwarping of said housing.
8. cooling device as claimed in claim 6, wherein said left sirocco fan and said right sirocco fan comprise impeller and motor respectively, wherein said motor is arranged on the middle part of said impeller.
9. cooling device as claimed in claim 6, wherein said left sirocco fan and said right sirocco fan are driven by independent motor respectively.
10. cooling device as claimed in claim 6, wherein said left sirocco fan and said right sirocco fan extend to each side of said display module.
11. cooling device as claimed in claim 1, the element that wherein requires thermal stability is near said air intake setting.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020050105174 | 2005-11-04 | ||
| KR1020050105174A KR100731382B1 (en) | 2005-11-04 | 2005-11-04 | Cooling apparatus for use in flat display device |
| KR10-2005-0105172 | 2005-11-04 | ||
| KR1020050105172 | 2005-11-04 | ||
| KR10-2005-0105174 | 2005-11-04 | ||
| KR1020050105172A KR100747848B1 (en) | 2005-11-04 | 2005-11-04 | Cooling apparatus for use in flat display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1960618A CN1960618A (en) | 2007-05-09 |
| CN1960618B true CN1960618B (en) | 2012-05-30 |
Family
ID=38072039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101318407A Expired - Fee Related CN1960618B (en) | 2005-11-04 | 2006-10-12 | Cooling apparatus for flat display device |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100747848B1 (en) |
| CN (1) | CN1960618B (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN1960618A (en) | 2007-05-09 |
| KR100747848B1 (en) | 2007-08-08 |
| KR20070048294A (en) | 2007-05-09 |
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