CN2687771Y - Radiating structure for disfplay device - Google Patents
Radiating structure for disfplay device Download PDFInfo
- Publication number
- CN2687771Y CN2687771Y CN 200320102153 CN200320102153U CN2687771Y CN 2687771 Y CN2687771 Y CN 2687771Y CN 200320102153 CN200320102153 CN 200320102153 CN 200320102153 U CN200320102153 U CN 200320102153U CN 2687771 Y CN2687771 Y CN 2687771Y
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- CN
- China
- Prior art keywords
- flow path
- gas flow
- display device
- louvre
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000005855 radiation Effects 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 238000009825 accumulation Methods 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 abstract 1
- 238000004904 shortening Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 33
- 239000012530 fluid Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005538 encapsulation Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000005142 aphototropism Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
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- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The utility model discloses a radiating structure for display device, which is mainly used for a back light module block and the dissipating heat for a closed unit at the casing of the display device. Owing to the heat source generated from inside, the display device makes hot air rise and gather at a specific position, and for long-term usage can make the temperature of the element rise because of heat accumulation, consequently shortening the service life of the element. To avoid heterogeneous heat distribution, a gap is formed between the back light module block and the closed unit of the display device, and is surrounded by the casing of the display device to form a gas flow path, and wherein, the gas flow path is provided with at least a group of radiating fans to make the gas of the gas flow path generate forced convection and expel heat.
Description
Technical field
The utility model relates to a kind of heat radiation framework of display device, the heat radiation framework that particularly a kind of setting by gas flow path is shifted the heat of display device inside rapidly.
Background technology
LCD has replaced the CRT screen gradually now, but is accompanied by the lightening of LCD, if distributing of its inner generation heat is merely by the natural convection effect, single-phase air heat passes the extremely low 25～250W/m of coefficient
2-℃, the high heat of display interior just can not in time be distributed, and is light then will influence the normal operation of display, heavy then can shorten life-span of display, so how to avoid heat accumulation just to become an important problem in the display device effectively.
Traditional computer is because itself carry out high-speed computation meeting accumulation heat, for avoiding this accumulation of heat to influence the usefulness of computer operating, usually finned and fan carry out forced heat radiation, and along with the progress of science and technology, the arithmetic speed of computing machine increases, the heat that is produced also increases thereupon, the performance of therefore serious test heat radiation framework.Same display device is also because frivolous day by day, and its heat dissipation problem is also more and more important; Display unit mainly can be divided in display device inside, module backlight, three parts such as closed cell, wherein the heat that produces with module backlight and closed cell especially is for, liquid crystal itself can't be luminous, mainly be to provide by module backlight to show required light source, the necessary brightness of light source is high and even, inside is mainly by many cold cathode fluorescent lamp (Cold Cathode Fluorescent Lamp, CCFL) constitute, cold cathode fluorescent lamp contains mercury and inert gas, tube inner wall scribbles phosphor powder, respectively there is an electrode at two ends, lamp tube ends begins discharge after imposing a high pressure, mercury is subjected to electron impact and inspires the ultraviolet light that a wavelength is 253.7nm in the pipe, this ultraviolet light will stimulate the phosphor powder of tube inner wall to produce visible light, the color of visible light depends on the kind of phosphor powder, lamp luminescence is reflective by reflex housing, line source is converted to area source, light is imported light guide plate, and many cold cathode fluorescent lamp itself can not generate a large amount of heats in the module backlight, but the electrode in fluorescent tube and module junction but can produce a large amount of heats because of high pressure, cause the rising of fluorescent tube both sides temperature, heat is then along with the convection current of cold and hot air, causes upper end fluorescent tube two lateral electrodes because overheated and damage; And module backlight influences light source for avoiding external fine particle, can carry out encapsulation process to module backlight usually, yet because encapsulation process will increase the heat dissipation element mounting hardness, and the performance that radiator fan will influence light source is installed in module backlight.
The utility model content
Fundamental purpose of the present utility model is by fan is set, in the display device housing, form the space between module backlight and the closed cell, this space is surrounded by housing and forms a gas flow path, a fan is set in this gas flow path makes the gas in the gas flow path produce forced convertion.
The utility model forms the space between the module backlight of the housing of display device and closed cell, this space is surrounded by housing and constitutes a gas flow path, this housing is provided with a louvre at least and communicates with this gas flow path, one fan is set in this gas flow path at least, running by fan is circulated the heat that module and closed cell backlight generated via louvre by gas flow path with extraneous, and avoid heat accumulation, and module backlight connects a sheet metal, the heat energy of module backlight can be conducted to sheet metal fast.
The diagonal position of this gas flow path respectively is provided with louvre, if and a fan only is set in the gas flow path, then this fan is discharged the air in the gas flow path from louvre, simultaneously also impel gas to be inhaled into this gas flow path via another louvre, and this fan also can suck outside air in the gas flow path by louvre, and forces gas to be discharged via another louvre; Set up many group fans can promote the cross-ventilation of gas flow path, a part of fan is discharged the air in the gas flow path from louvre, and another part fan can suck this gas flow path with outside air by another louvre.
Description of drawings
Fig. 1 is the perspective view of preferred embodiment of the present utility model.
Fig. 2 is the decomposing schematic representation of preferred embodiment of the present utility model.
Fig. 3 is the hot-fluid synoptic diagram of first embodiment of the present utility model.
Fig. 4 is the decomposing schematic representation of second embodiment of the present utility model.
Fig. 5 is the hot-fluid synoptic diagram of the 3rd embodiment of the present utility model.
Fig. 6 is the hot-fluid synoptic diagram of the 4th embodiment of the present utility model.
Fig. 7 is the hot-fluid synoptic diagram of the 5th embodiment of the present utility model.
Fig. 8 is the decomposing schematic representation of the 6th embodiment of the present utility model.
Embodiment
Relevant detailed description of the present utility model and technology contents, existing accompanying drawings is as follows:
See also Fig. 1, display device comprises display unit 8, module backlight 1, closed cell 2 three parts in regular turn, wherein closed cell 2 can be made up of single circuit board 4, remedy by plate body perhaps that circuit board 4 is due to be contained range of defilade and form closed cell 2, closed cell 2 is made of metal in addition, connect a sheet metal 12 (copper coin or aluminium sheet) at the back side of module 1 backlight, mainly can be used for the heat at module backlight 1 localized hyperthermia place is conducted to rapidly on this sheet metal 12; Form a gas flow path 5 at closed cell 2 and module 1 backlight, present embodiment is provided with two centrifugal fans at the diagonal angle of this gas flow path 5, first fan 31, second fan 32 are fixed with module 1 backlight, closed cell 2, but the both sides of first fan 31 and second fan 32 still have living space and can make gas from the both sides suction, at the place, diagonal angle of gas flow path 5 louvre 50,51 are set.
See also Fig. 2, can know by this figure and to see that first fan 31, second fan 32 are fixed on the closed cell 2, circuit board 4 then is fixed on closed cell 2, connect a sheet metal 12 at the back side of module 1 backlight and can absorb module 1 local higher heat backlight, first fan 31 then orders about air and is sent to second fan 32, second fan 32 is mainly discharged by louvre 50 gas flow path 5 with hot-air, impel gas to be inhaled into via another louvre 51.
See also Fig. 3, be first embodiment of the present utility model, be arranged on first fan 31 on closed cell 2 tops in the present embodiment, its effect is to impel the phenomenon that produces an air current flow, second fan 32 then is positioned at the bottom of closed cell 2, the hot-fluid that first fan 31 brings is extracted out, and the air in the closed cell 2 is discharged via louvre 50, and take away the heat that module 1 backlight is accumulated.
See also Fig. 4, be second embodiment of the present utility model, offer a louvre 6 at closed cell 2, this louvre 6 is communicated with the suction inlet of first fan 31, first fan 31 can suck the cold air of closed cell 2 outsides, and the conduction of heat mainly is to be media with the air, gradually move toward the top by the below, yet when importing cold air, this cold air will be subjected to the driving of first fan 31, move to second fan 32, and cold air is opposite with the flow direction of hot-air, can improve the rate of heat exchange of cold and hot air, second fan 32 is discharged gas by louvre 50.
See also Fig. 1 and Fig. 5, be the 3rd embodiment of the present utility model, wherein install several additional laterally perpendicular to the dividing plate 7 of closed cell 2, when air is sucked by first fan 31, the flow direction of air is deferred to the guiding of dividing plate 7, shown in arrow among the figure, promotes toward second fan 32 gradually, cold air fully contacts entire aphototropism mould 1, and the heat that module 1 backlight is produced is taken away.
See also Fig. 1 and Fig. 6, being the 4th embodiment of the present utility model, mainly is to install one second fan 32 in the side near louvre 50, mainly causes flow perturbation by second fan 32, the air current flow direction is extracted out by louvre 50 via second fan 32 as shown by arrows in the gas flow path 5.
See also Fig. 1 and Fig. 7, be the 5th embodiment of the present utility model, mainly be that second fan 32 is installed near louvre 51 places in the top in gas flow path 5, when the air heating temperature in the gas flow path 5 rises, because hot-air density is lower, therefore in gas flow path 5, to rise, second fan 32 will promote hot cold air convection this moment, and, impel extraneous air to suck these gas flow paths 5 by heat extraction hole 50 by louvre 51 discharge hot-airs.
See also Fig. 8, be the 6th embodiment of the present utility model, module 1 backlight and closed cell 2 constitute a gas flow path 5 in the present embodiment, be that with the difference of previous embodiment closed cell 2 is single plate body, circuit board 4 next-door neighbour's modules 1 backlight and position are in gas flow path 5, the air flow mode is the same, repeats no more.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present utility model.
Claims (7)
1. the heat radiation framework of a display device is used for the module backlight (1) that is arranged in the described display device housing is dispelled the heat, and it is characterized in that:
Described display device is provided with a closed cell (2), has a space between described closed cell (2) and the described module backlight (1), and described space is surrounded by the described housing of described display device and forms a gas flow path (5);
The described housing of described display device is provided with a louvre (50) at least and communicates with described gas flow path (5);
Described gas flow path (5) is provided with a fan (32) at least, and the gas of forcing to drive in the described gas flow path (5) passes through described louvre (50) and extraneous circulation.
2. the heat radiation framework of display device according to claim 1 is characterized in that, is provided with multiple tracks dividing plate (7) in the described gas flow path (5), and the diagonal position of described gas flow path (5) respectively is provided with a louvre (50,51).
3. the heat radiation framework of display device according to claim 2 is characterized in that, locates to be provided with a fan (31,32) near arbitrary described louvre (50,51).
4. the heat radiation framework of display device according to claim 2 is characterized in that, is provided with two fans (31,32) in the described gas flow path, respectively the diagonal position of close described gas flow path (5).
5. the heat radiation framework of display device according to claim 2, it is characterized in that, multiple tracks dividing plate (7) is set in the described gas flow path (5), the ambient atmos that guiding sucks from arbitrary described louvre (50) each part the described gas flow path (5) of flowing through is discharged from another described louvre (51) at diagonal angle again.
6. the heat radiation framework of display device according to claim 1 is characterized in that, described gas flow path (5) is provided with a sheet metal (12), and described sheet metal (12) joins with described module backlight (1).
7. the heat radiation framework of display device according to claim 1 is characterized in that, is provided with a circuit board (4) in the described gas flow path (5), and described circuit board (4) is fixed in described module backlight (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320102153 CN2687771Y (en) | 2003-10-23 | 2003-10-23 | Radiating structure for disfplay device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320102153 CN2687771Y (en) | 2003-10-23 | 2003-10-23 | Radiating structure for disfplay device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2687771Y true CN2687771Y (en) | 2005-03-23 |
Family
ID=34661497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320102153 Expired - Fee Related CN2687771Y (en) | 2003-10-23 | 2003-10-23 | Radiating structure for disfplay device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2687771Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022707B (en) * | 2009-09-15 | 2013-05-29 | 建准电机工业股份有限公司 | Heat radiating device of light module |
| CN116436371A (en) * | 2023-05-11 | 2023-07-14 | 佛山市顺德区汇天五金电器制造有限公司 | Frequency converter with heat radiation structure |
-
2003
- 2003-10-23 CN CN 200320102153 patent/CN2687771Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022707B (en) * | 2009-09-15 | 2013-05-29 | 建准电机工业股份有限公司 | Heat radiating device of light module |
| CN116436371A (en) * | 2023-05-11 | 2023-07-14 | 佛山市顺德区汇天五金电器制造有限公司 | Frequency converter with heat radiation structure |
| CN116436371B (en) * | 2023-05-11 | 2024-01-23 | 深圳市源信电气技术有限公司 | Frequency converter with heat radiation structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |