TW201034558A - Thermal control system for an electronic display - Google Patents

Abstract

A cooling assembly for an electronic image assembly and a display assembly containing the same. Some embodiments use ambient gas to cool power modules and/or an image assembly (sometimes backlight). Other embodiments use a closed loop of circulating gas which passes across the front surface of an image assembly and through a heat exchanger. An open loop passes through the heat exchanger and extracts heat from the circulating gas. Ambient air may be used as the ambient gas. An optional additional channel may be used to cool the back portion of the image assembly or backlight with ambient gas. Some embodiments also use thermally conductive plates and ribs to distribute the heat and avoid hot spots in the display. The cooling assembly can be used with any type of electronic assembly for producing an image.

Description

201034558 VI. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The illustrative examples are generally related to cooling systems, and in particular to cooling systems for electronic displays. [Prior Art] Conductive and convective heat transfer systems for electronic displays have generally attempted to remove heat from electronic components in the display by as many display side walls as possible. In order to do this, the past has relied primarily on fans to move the internal air within the housing through the components to be cooled and out of the display. These components are generally powered. In some cases, the heated air moves to communicate with the fan in a convective manner. Although such a heat transfer system has been used in the past, for the is _ m square! The improvement of the cold-new display application with a certain degree of drought requires even greater. In general, the cooling device that has been used in the tank has used the rear internal part of the convection cooling system. In the "Holiday", only the display is cooled down. 1 m. The field is outdoors or in other warmth. The Japanese Guardian’s use of the field is too much. 0. Conduction becomes-'', the radiation slamming on the surface of the sniper is the main factor. This is not enough. In h, there is 200 watts of B, and in §, the application of the target t or more power is passed. In the front of the 酞 ^. In addition, the market needs a larger size camp: the display surface is the size of the screen of the common electronic display and the corresponding front display: display. With the mouth, will produce more volume, not stealing surface size The enthusiasm of the eve and the more hot chat will be transmitted to the display 201034558. In addition, when the display + wn corrects a ', y, Yi 疋 in the outdoor environment... May contain pollutants in the brothers ^ ^ brother. 皋 dust, sand, smoke, etc.", pounds, pollen, water vapor, sputum for internal cooling :::: These pollutants are absorbed into Damage to the display.硓 硓 硓 现代 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于 对于The device, such as crFr " the brightness of the degree of production, the lighting installed directly like the CCFL components, LEDs, the production of the J-Ah LEDS and the plasma components can produce a large amount of heat. In addition, the clothes and clothing have a considerable amount of power in order to produce the required degree of brightness. In the case of #4大大, the power is generally supplied through one or more power supplies for the display. These power supplies can also become a significant source of heat for the display. When the device to be used is used in an outdoor environment, directly exposed to the sun or other difficult thermal environment, it is very common for the temperature to fluctuate greatly. Such temperature fluctuations can adversely affect the service life and performance of the sub-assemblies of these devices.广U 容内明发; The ancient 糸 已经 已经 f f f 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者 者It is expected that the side of the audience will flow heat. These relatively simple examples may include two separate flow paths 'for gases passing through the electronic display. - a first - flow path: 5 201034558 Open circuit and a second flow path can be closed loop. The closed path advances past the image assembly, the surface of the road, and continues to the rear of the display & where it can enter one of the hot parent converters and finally return to the front surface of the image assembly. The route along the road is drawn through the display (possibly through a heat exchange g, and then exchange) gas (for example, ambient gas) and then the gas is drawn _, the hole is discharged outside the display housing . - A heat exchange test can be used to heat the heat from the closed wire, '. . The road is transferred to the open circuit and discharged out of the display. Alternatively, the 1st, the road can also be forced to be behind the image assembly (when the backlight is 'other times 〇Led or other type of assembly) to cool the image assembly and / or backlight combination In the middle of the special type of display used by the scholars and the households, it is necessary to use a backlight. A parent and flow heat exchanger can be used in the illustrative example. Other systems are used to cool the following sub-f5 positions. The system is either alone or in combination: () power 杈 group, (2) backlight And (1) the front display surface. = The power module with heat dissipation components (for example, cold plate and/or heat sink) can be placed in the path of the environmental emulsion with some of the side systems that make the power module contain the heat sink assembly, and the power module Side systems containing sensitive electrical components continue to be used together with instances in separate environments. An isolation structure provides the required isolation of gas (X and sometimes particulates/contaminants) between the two sides of the power module. When using a closed loop gas cooling power module, the closed loop may or may not be used. A backlight with a front and rear side can be used with some examples for the 201034558 LCD display and the rear side contains a 敎 conduction meter. The side of the side contains the illumination device Φ Φ..., "', ', Conductive surface, used to heat from the lighting device... There should be a low degree of thermal resistance between the front side and the rear side of the backlight. The power module is placed in a plurality of heat-conducting ribs... Connected, wherein the ribs are placed in the path of cooling air (sometimes the surrounding gas). The heat from the τ from the power module is distributed throughout the entire (four) section ^ is removed by the cooling air I have been found to force air through the passage of the 1st floor defined by the ribs to enhance the ability of the heat to remove from the power module. In another example, the power module and the display backlight Source (or image assembly): both are in thermal communication with the ribs. In this way, cooling air (sometimes ambient gas) @单-path can be used to cool - a typical electronic display Two of the warmest components. For example, 'and not in a limiting manner' LED arrays t are used as lighting fixtures for coffee displays. It has been found that the optical properties of LEDS (and other ambiguous devices) It can vary depending on the temperature. Therefore, when the coffee is exposed to room temperature, it can output light with a certain brightness, wavelength and/or color temperature. However, when the same LED is exposed to high temperatures, the brightness is clear. Lu, wavelength, color temperature, and other properties may change, when: the change in degree is across the LEDs #:琢f# r- L and the other sources (some regions are at a higher temperature than other regions)% When present, 'there may be optical variability across the backlight that is visible to the viewer. By using the examples herein, heat growth can be evenly distributed throughout the ribs and removed from the display. 7 201034558 This will prevent any 'hot spots' that may be in the source of the wells. Because of the lighting device (there are av b τΕΤΛ, 4 4 is 'but not always

The optical properties of LbDs) are visible to K observers. In other embodiments, the image group (i.e., the backlight) is attached to the rib.卩 Connected by heat. The image assembly 0 may include any form of electronic assembly for generating images, including, but not limited to, an LCD, a first LED (LED), an organic light emitting diode (〇LED), and field emission. Flat panel display (ganger), luminescent polymer (LEp), electrosurgical display, and any other flat/thin panel display. ...: The ribs can provide an isolation chamber that is isolated from the other parts of the luminaire so that ambient air can be absorbed and used to cool the ribs. This is the case where the display is used in an outdoor environment and the absorbed air may contain conditions that can damage the display (pollen, dirt, dust, water, smoke, etc.). If a backlight is used with a particular display application, a backlight with front and rear sides can be used, with the front side containing the illumination and the rear side containing a heat transfer surface for: heat from the illumination Dissipated. Ideally, the degree of thermal resistance between the backlight and the rear side of the backlight should be low. An illustrative example includes a metal core, a PCB with LEDs on the front side and a metal surface on the rear side. By way of the following description, the illustrative examples herein have made it possible to achieve consistent cooling of large electronic displays, even in hot climates and under direct sunlight. The examples such as 201034558 also do not require any form of air conditioning unit (although it can be used), but there is a need to reduce it. f is lower for the space of the display and the above and above and other characteristics of the energy S-definition embodiment and the advantages from the invention described in the fk figure is more special in the cargo beta hunting example Will become more understandable. [Embodiment] Circle 1 illustrates an embodiment of a typical power module 7 that can be used with some of the examples described herein = the circuit board 6 can be attached to the power The module 7 and the plurality of electronic components that may be included in the control and power module 7 may include: but not limited to resistors, capacitors: Inducer. A base plate member ^ is attached to the power module, the group 7 and functions as the heat module for the power module 7, so that the heat generated by the power module and the group 7 can be transferred to the base. P plate 8. In some embodiments, more can be used, and the pieces are like a conductive backing positioned between the power module and the base panel 8: and, as discussed further below, any Types of the tab assembly can be used with the county board to make it into thermal properties. A conductive backing may also be placed between the base and a heat sink assembly. 8 Figure 2 shows the installation of two power modules in an isolation structure 9 to prevent gas and contamination between the two sides of the power module 9 201034558. The base plate member 8 on the side of the isolation structure 9 is designed (4) (4) The financial air 4 is passed through, and the 塾&quot; can be used as the i, 』| square; power module A gas (and/or y dye) between the segregation and the segregation is called a seal. Cooling air 4 The location of the mountain is extracted from the environment of the surround monitor. This environment may contain objects that may be #宝+ s ) / stolen goods, and this kind of coincidence damages various electrical components in the display. The pollutants of this treasure include 彳' but not “harmful γ 〇 〇 四 四 四 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 灰尘 。 。 。 。 。 „ h 钇 , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , the desired electronic component 5 (shown in Figure i). By arranging the power module assembly within the isolation structure 9, the enclosed ring f cooling air 4 can be drawn into the display housing and forced to pass over the base 8 (the wider the selection and the overheating, the fins) Board), in order to cool the power module. This can be achieved without exposing sensitive electronic components to potentially harmful surrounding ambient cooling air 4. Figures 3 and 4 show an example of cooling air 4 that can be used to cool the power module and back light source port #1 40. These examples show a monthly light source, 'and. #140 </ </ RTI> It contains a plurality of lighting devices (e.g., jobs) i4i mounted on a printed circuit board (PCB). An illustrative embodiment uses a metal core pcB or any other mounting structure having a relatively low degree of thermal resistance such that heat can be transferred from the illumination device to the rear surface of the backlight assembly 140, at the rear. At the surface, 10 201034558 heat can be removed by the cooling air 4. The illumination device 1 4] π 5 1 Η 1 is an LED, a halogen, a CCFL or any other device that generates light. Furthermore, for some examples, such as plasma, 〇LED, Lep or F, a backlight assembly may not even be required. However, this type of plant and benefit type is also known to generate heat, and these methods can also be applied to cool the rear surface of these electronic image components when the backlight is cooled as described in this application. Therefore, when the backlight assembly is displayed, 'd Μ replaces the electricity

Pulp, OLED, FED or LEp image assembly. The electronic component $ can be isolated from the cooling air 4 by the use of the isolation structure 9. In the case of a heat sink 12, except that a heat sink 12 is now connected to the heat phase in order to facilitate the step of promoting the heat slave group, the example is similar to that shown in FIG. Of course, it should be possible to obtain many types of defects that are manufactured in many different materials and of the same geometry. The heat of the midnight eve is a few. Any form of heat sink is used in various examples and can be used to meet different operating conditions. : 5 illustrates another embodiment in which a plurality of channels are between the odd light source assembly 14 and the partition M, and the h is separated from the structure. Channel dividers I 6 ~ τ ^ are used to separate each magazine to provide 6 components. The channels are separated by the 丨 、 、 、 、 ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° 5 pieces of 14 〇 and n of the isolation structure 9 heat. A heat conduction channel is transferred between the two or the isolation structure 9;; the teaching can also be from the f light source assembly U0 through the air of the channel 15 ... and can be hot Divergence to the mobile J-worker. Therefore, this contains fins or heat sinks so that -... "16 can facilitate the arrival of moving through the channel.

II 201034558 Heat transfer of gas. Figure 6 shows the downward view of the heat sink 12, which is used to mount the view 'the channel 15' again. A dynamic model within the isolation structure 9 of the sea. Some channels 15 may contain power modules, while other channels may not include power modules. A passage fan 17 can be used to draw air through the passage ... to cool the heat sink 12 (if used) and (4)

The splitter 16 (if it is thermally conductive) and the backlight 140 (or LED assembly for a led display). Each channel 15 can contain one or more channel fans 17. Some channels may not contain a fan, but may rely solely on natural convection to allow heat to rise and exit the channel. In the following, at %, the fan can be placed anywhere in the display assembly and can (4) pump air through the channel, push air through the channel', or a combination of the two.

While the field display is in operation, the channel fan 17 can be operated continuously. Alternatively, a temperature sensing device (not shown) can be placed in each channel and used to measure the channel or any channel component (backlight or display assembly, isolation structure, or channel separation) The temperature within the device). Depending on which data is received from these temperature sensing devices, depending on which channel requires cooling, the various fans can be snapped in a selected manner. Therefore, due to the greater heat from the power module, the fan 17 that draws air through the passage 15 containing the power module can operate more often or at a higher speed. Moreover, the channel containing the power module can be combined with a larger fan or a plurality of fans to facilitate cooling of the channel. Figure 7 illustrates another example of the use of one thermally conductive plate member 1 and a plurality of ribs 18 12 201034558. In one example, the kinetic system and the heat conducting plate member 10 are considered to be in the other examples, and the base plate member 8 can be used for the π, but the power module 7 system = 〇 Directly connected by heat. Thanks to the board! And ribs; == sex and between the plates. And between the ribs 18, the heat generated by the body will be distributed throughout the panel 1 〇 and the rib = ❹ Ο example, cooling the air 2. (Environmental Gases) II: :: is used to remove the enthalpy that has accumulated on the panel 1 and the ribs 8 . The 7th can be used to escape from the (4) convection program 1 and the rib 18.汲仟 A number of mounting posts can be used to mount electronic components such as PCBs, :Disk drives, timing and control panels, baffles and, if necessary, to-power modules. The mounting posts can also be thermally conductive so that the heat generated by the electronic components can also be transferred to the panel 1 and the ribs 18 U and removed by the cooling air 2 . In an illustrative example, the 'plate 1' will be on the side containing the rib 18 (and the cooling air, gas 20) and the side containing the column, the power module, and any &quot;his electronic components. Provide barriers to gases and contaminants. If the panel 10 provides sufficient obstruction 'the ambient air can be absorbed as the cooling air 2' and the risk of contaminants entering the side containing the sensitive electronic panel 10 can be reduced or eliminated. An inlet opening 25 is used to receive the cold air 20 and to direct the air along the ribs i 8 . It is not necessary that the ribs 18 not shown in this example contain a hollow rectangular section. Other examples may include a cross-section 13 201034558 face, a hollow square profile, a solid rectangle or a solid square profile, 'τ, a profile, a 'z, a profile' wave or a bee-like profile, or more Any combination or mixed rib of the profile. Preferably, the ribs a: are thermally transmissive. Among the examples, the ribs 18 can be made of metal. 〇 Figure 8 shows another example where the ribs (1) are used to disperse the crucible from a backlight assembly and to cool the backlight assembly. The backlight assembly of this example includes a plurality of illumination devices 32 mounted on a thermally conductive substrate. In this illustrative example, the illumination strip 32 would be a LEDs &amp; and the thermally conductive substrate 3 would be a pcB, and more preferably a metal core PCB. There may be a heat conducting surface 35 on the surface of the heat conducting substrate 3 facing the ribs. In the illustrative example, the heat conducting surface 35 is metallic and more (four) is. Preferably, the rib 18 is in thermal communication with the rear surface 35 and the rear surface μ is in thermal communication with the ',, and the transmissive substrate 3G. However, among these examples, the heat transfer V substrate 30 may comprise a conventional pcB material instead of a metal core PCB or any highly thermally conductive material. Best of all, in such lighting

The degree of thermal resistance between the device 3 2 and the ribs of 1 2 h A is very low. Cooling air 2〇 can be forced to follow again! q ribs.卩1 8 ' to facilitate removal of heat from the backlight assembly. This can also happen through natural convection, but the Q part of the rate generally occurs through unnatural convection.

HiT / 吏 - use. An image assembly (such as a backlight that can be used without backlighting) is used in place of the backlight assembly to facilitate cooling of the shadow assembly. 14 201034558 As noted above, many lighting fixtures and OL£D) can have a performance that depends on, w, or the degree of ice hickey, or that there is a 'hot spot' in the lighting assembly. Days, ": Guangneng will make a possible difference in the images produced... a considerable point." This I was eventually consumed unevenly. Therefore, the heat generated by the backlight group δ can be distributed over various ribs and heat by means of the human liberation described herein to facilitate removal of the hot spot and cooling of the backlight. The ribs 18 can be used in both the cold source assembly and the power module. In one case, the ribs of the shells are also used to cool any additional electricity by placing them in thermal communication with the heat transfer plates. , , , 'and 1 dry. Therefore, the borrower in the central position of the rib 18, 'front, Hexian pliers cat ~ ^ θ 疋 toward the monitor's pre-viewer, @ 'back, | will be in The front side of the rib 18 will be in thermal communication with the combination of the other elements (or other illumination or image-forming assembly), and The rear side of the rib will be hot (four) with a rear panel (ie, = conductive panel 10). The cooling air of a path can thus be used to cool the interior of the display, while various hotspots can Distribute heat throughout the ribs and other thermally conductive surfaces to provide the most efficient, &quot;τ, 1. σ to eliminate the need to expose sensitive electrical components to Mondays and/or particulates. In the case of a situation. &quot;&quot; Figure 9 shows an exemplary electronic display 10 The back side of the cockroach

The rear cover of the Bg I/, for the &quot;' housing is removed to facilitate the display of the internal components. In this example, the fan assembly 10 for the closed loop gas and 2 15 201034558 and 1 0 3 can be placed in the second of the heat exchanger 1〇1 of the rn / mouth. Preferably, the fan assembly 1〇2 is used for the edge of the heat exchange piano = the fan assembly 103 is used for the outlet of the heat exchanger ι〇ι. ‘Mouth: 1 component can be selectively reversed -, 裢 mouth and fan grading # 1〇2... Fan assembly 1〇3 is for entering, and is for export. In addition, components 102 and 1 are not necessary. Some examples can be used for closed loops. If there is a fan combination, it is better to use only one fan assembly.

The fan assembly is placed at the heat exchanger 1G , so that the ‘(四), #环环 gas passes over the image group and pushes the circulating gas overheated. However, ::: Other examples can pull the isolated gas through the heat exchanger HH. :; 歹 以 to pull the isolated gas through the front of the image assembly. For the door, the mouth, the two opposite edges 丄: the display housing is not necessary 1 ^ ^, the components 1G4 and 1 〇 5 because there are some examples can use only one assembly and ❹ 1. Use an open circuit fan assembly that pushes or pulls the design. Therefore, each of the various fans can be used to refer to, push, pull, ‘force push, and ‘pump. And any orientation can be used with various examples herein. The cycle gas that is promoted by the force of the closed-loop fan assembly is mainly circulated. For example, the helium system enters in a loop where the circulating gas system contacts the front of the image assembly, see Figure 1 〇A to Figure 1 〇B) and the heat from the image assembly Transfer to 4 bodies. The recycle gas is therefore preferably guided (or pushed, pulled, etc. by force) into the human heat exchange $1Q1; the recycle gas is transferred to the surrounding gas. Thereafter, the recycle gas system exits the ',, parent switch 101 and can be returned to the front surface of the image assembly. The body can also pass over several electronic components 110' to facilitate the removal of heat from these packages. The electronic component 110 can be any device, component or assembly, including but not limited to a resistor, a capacitor, a battery, a power module, a motor, an inductive I-way device, a wire, and a wire harness, a light source. , thermoelectric devices and switches. Among the examples, the electrical component i 10 may also include a heater when the display assembly can be used in a cold weather environment. Apparel_To cool the recycle gas (and selectively cool the backlight assembly or image assembly as taught above), the ambient gas system is absorbed into the display housing by the open loop 4 assembly 104 and/or 丨05. Among them. The surrounding gas may be completely surrounding the ambient air of the display 100. In some instances, the ambient gas may be air conditioned by the air conditioning assembly (not shown) before being drawn into the display. : f The surrounding gas is absorbed into the display, which can be guided (or = forced) through the heat exchanger 1〇1' and optionally across the backlight, assembly or image assembly (see Figure 10A The rear surface of 1〇B) or 疋 passes through the above mentioned ribs/channels as shown or over the upper module as shown. By using the heat exchanger 101, the heat is transferred from the recycle gas to the alpha gas. The heated ambient gas is then discharged out of the display housing. Although it is not necessary, the circulating gas and the surrounding gas are preferably mixed. In a preferred embodiment, heat exchanger 1〇1 will be a cross-flowing heat exchanger. However, many types of heat exchangers are known and these heat exchangers can be used with any of the examples herein. The heat exchanger 101 can be a cross-flow, parallel flow or reverse flow (tube-within-a-tube or other type) heat exchanger. In an illustrative example, heat exchanger 1〇1 would be a thin plate member that would be cross-flowing and would contain a plurality of stacked layers. The panels may have a wavy or honeycomb design with a plurality of channels or paths extending downwardly along the length of the panel. The panels may be stacked such that the directions of the runners are staggered with each adjacent panel such that the path of each panel is substantially perpendicular to the path of the adjacent panel. Therefore, the gas can enter the heat exchanger only through its passage or the plate whose path is parallel to the gas path. Because the plates are staggered, the closed circuit and the surrounding gas can travel among the plates adjacent to each other, and heat can be transferred between the two, and the gas itself does not mix (if hot This is preferred but not necessary if the exchanger is properly sealed. Among the selected designs, an open gap can be placed between the paired 13==channels or the honeycomb panel. The open gap can extend in the direction of a two straight 'plate passage. This open void can be created in the panel by strip material or tape (especially super strong (very) (VHB ^ -HH: \ ^ in the direction perpendicular to the direction of the channel in the adjacent panel Between the two opposite edges. Therefore, the gas can travel, open the gap (parallel to the strip or the strip), but not in the vertical &gt;5^, f, or the strap (parallel to the channel of the adjacent panel) In the direction of 18 201034558 through the open gap. Other = type of cross-flow heat exchanger 玎 to include a plurality of tubes, the tube containing the first gas and perpendicular to the path of the second gas = into. The second gas flows over the camp containing the first gas, and the heat is exchanged between the two gases. It is obvious that there are many cross-flow heat exchangers of 〇〇 & Hu &amp; And any type of cross-flowing heat, which can be operated together with the example of this article, ❺ Ο , , a ιτ, where the sidewall system is quite thin, so that heat can be easily exchanged between the two gas paths. Use multiple materials Create a heat exchanger. Preferably: the materials used should be resistant to intrusion, resistant to decay, and inexpensive. Metals are often used because of their high thermal conductivity. However, plastics have been discovered. Composite materials are also available for thermal conditions in electronic displays. An illustrative example is the use of materials for the construction of panels for heat exchangers.

I found in Cj. Although polypropylene appears to be a poor thermal conductor, it produces a very low overall thermal resistance for a large number of surface areas. The thick material of the illustrated heat exchanger is made of plastic and is therefore a lightweight display assembly. Specifically, the θ-type is thin and the body is wavy or the bee-like plastic knee U ^ is not necessary for each of the plate layers. The fan instances of the inlet and the outlet mentioned above are not necessary. Or, for each: mouth-to-fan assembly. In this way, only one brother can use only one closed loop and only one, and the fan assembly can be used with the wind shoulder splicing unit with the inlet and outlet inlet or outlet combination. Alternatively, one of the loops may have both the fan assembly and the other loop has only one of the components. ΊΚ. m ί± , ,.. t 〜1 number of rolled 筱. In some cases, '^ can be used, using the working milk as the machine for the two circuits. Preferably, the 乂u + 扪 行进 body that travels through the closed loop should be substantially clean so that when the gas passes through the image combination, the _(10) person is a thousand squares, and it will not be for the observer. Affects the appearance of the image. ^ ^ BL is ordered to pass through the closed loop gas line 疋 substantially free of contaminants and/or particulates (eg, dust, dirt, pollen, water vapor, smoke, etc.) in order to prevent μ t „ _ 10,000 For the adverse effect of image quality I* and for any internal field of electronic components, it may also be preferable to keep the gas in the open circuit in the state of the dyed object. A selected filter ( Not shown in the figure) -0 θ „ . h YJ is used to ensure that the air (either in the closed circuit or in the open circuit) continues. It is wonderful, only in the absence of pollutants. sad. However, in the illustrative example, the open circuit can be designed such that the π dye is likely to be present in the surrounding gas, ^ η but the sample will not be a member of the device. Among these examples, heat exchange The device "closed or behind the backlight or through the rib's choice path" is sealed by ^' so that the Rentian τ in the surrounding gas will not enter the sensitive part of the device. Thus, in this 'block'-illustrative example, where the surrounding air contains contaminants, inhaling ambient air for circumferentially decoupling the surrounding gas will damage the display. When the display is used in an outdoor environment or indoor environment in which the smudged dye system is present in the surrounding six atmospheres. U Medium 4 may be particularly 20 201034558 ❹ ❹ FIG. 10A illustrates a cross section of another example of display 200. In this figure, the rear cover 250 and the side covers 25A and 252 are shown to facilitate the description of the method for sealing the entire display. The illustrated image assembly 220 is adjacent to the front of the display 200. As discussed above, the image assembly 220 can include any form of electronic assembly for generating images, including, but not limited to, an LCD, a light emitting diode (LED), an organic light emitting diode (0 LED). ), Field Emission Flat Panel Display (FED), Luminescent Polymer (LEP), Electro-Polymerized Display, and any other flat/thin panel display. The front display surface 221 is placed in front of the image assembly 220 to define a channel 29 through which the circulating gas can flow. The front display surface 221 can be any transparent material (glass, plastic or composite) and can include a layer of layers for biasing A, reducing glare or reflection, and protecting the internal display. In an illustrative example, the front display surface 2 is comprised of two long squares of glass that are laminated together with an optical adhesive (preferably refractive index matching), one The polarizing layer can be attached to one of the long square glasses to reduce internal reflections and sunlight loaded on the image assembly 220. Most preferably, the polarizing layer is attached to the inner surface of the front display meter Φ 221 (the surface facing the closed loop channel 290) and also contains an anti-reflection (coating. For the example shown in Figure 10) The image assembly 22 can be equipped with a backlight assembly 222. The backlights can be used to produce illumination for the 21 201034558 required to produce images. In an illustrative embodiment, backlight assembly 222 includes a printed circuit board (PCB) having a plurality of LEDs (light emitting diodes) on the front surface. As discussed above, an illustrative example There is a low degree of thermal resistance between the front surface of the backlight assembly 222 and the rear surface 223 of the backlight. A metal PCB can be used for this purpose. The rear surface (2) of the backlight can contain a kind of thermal material. 'Like metal. Aluminum can be used for rear view from 223 _; material. - A second surface (or plate) 224 can be placed in close contact

Near backlight assembly # 222 is behind the square surface 223. The space between the rear table® 223 and the second surface 224 of the backlight can define an additional selective open circuit path 225 through which ambient gas can travel to facilitate cooling of the backlight assembly 222. This open circuit channel 225 is shown as channel 15 except that the open circuit channel 225 can be narrower. The same section as Fig. 10A is shown. For the purpose of explanation, the side cover 52...52 is removed, and the display 202 is flowed by the empty space. The closed loop fan assembly is open loop fan assembly 2. 3 can be used for surrounding gas. Alternatively, a second: back = heat exchanger grip is used to draw the ambient gas 212 to the C-fan assembly 204.

The punctured *, κ, over-selected channel 225, for A is the pre-source assembly 222. The selected No. 25 for cold can be used to discharge the surrounding gas that has traveled through the junction (10) assembly. The first open circuit fan ancestor 203 can be used to vent ambient gas 211 that has passed through the heat exchanger 201 if it is not used, 2, 1 and through the channel to open circuit fan assembly 204 22 201034558. As noted above, 扃 J In an illustrative example, the surrounding gas does not mix with the circulating gas. It may be important for the image material f that the gas system remains in the absence of particulates and contaminants as the circulating gas travels in front of the image cut (10). Since the gas used to open the circuit may contain various contaminations, the preferred example should be adequately sealed (to facilitate the mixing of gases from the two circuits. However, it is necessary to use it because it can be used) The filter (removable or permanent) reduces the effect of the particles on both the open circuit and the closed circuit to a minimum. Figure 11 is a perspective view of another example of the display assembly 600. Figure, which illustrates an inlet opening 60 for a surrounding gas 20 and a discharge opening 65. The inlet opening 6 can contain a screen or a filter (private or permanent) to move In addition to any particles (although this may be unnecessary), one or more fans 5〇 may be used to draw ambient gas 2〇 into the inlet opening 60 and through the heat exchanger 20 1 . The ambient gas 20 is only drawn through the heat exchanger 20 1 and does not pass through any otherwise selected channels or ribs. When the display assembly 8 (or backlight assembly) does not require additional cooling additional Channel time This example can be used. For example, and not by way of limitation, this example can be used when using OLED as the image assembly go. Also 'when the LCD backlight does not need to be extremely bright (maybe Because it is not used under direct sunlight) and does not generate a lot of heat 23 201034558 'can use this implementation point' 00. Further, when the surrounding gas 2 0 contains the right 1 - will know When it is harmful to the particles or contaminants of the display, you can use _: In some cases, it may be necessary to limit the exposure of the display to the surrounding gas. Therefore, in these cases, only the surrounding gas may be needed. 20 is sucked into the heat exchanger 2〇1 and does not pass through any additional cooling passages. ❹ In some examples, the ambient gas 2〇 is guided to the heat exchanger 2〇ι to the air conditioning (or It is cooled.) A square display surface 221 can be used to create the front (front) walls 2 and 7 of the channel 290 or to protect the image assembly 80 from damage. An exemplary The surface 22 of the device may be glass. The embodiment for the front display surface item may be two long squares of glass which are laminated to each other. The sun 贞 "from the sun ❹ ' J ', ,, 221 radiant heat conduction) may generate heat in the image group 8 (for example, '〇LED or LCD assembly). This heat can be transferred to the circulating gas 'where the heat can be passed to the surrounding gas 2〇 And discharging from the display. The image assembly can be any of the following: LCD, electrical display assembly, 疋LED phosphorescent polymer (LEP) assembly, organic electroluminescent (〇EL) combination or LED display assembly. η, Figure 12 shows an illustrative example in which a circulating gas is cut at a front display surface 221 and an image assembly 8', force pushed and then passed through a heat exchanger 2 That is, in order to remove the heat of at least the eight-image and the knives absorbed from the five used components 80 and the front display surface 22A. 24 201034558 The recycle gas 400 can be held by a closed loop fan - the heat exchanger 20 1 can be advanced in one direction. ‘When accepting a 3 ring gas in a substantially vertical direction, the gas can be transferred between the two gases. . The airlift 3' makes heat. In this example, another option is accepted through the inlet opening 350 and along the passage. The flow of the body 300 facilitates cooling of the image assembly 80 (possibly 225 is guided in place. This example uses a set of ribs 18, the light source of the 14th month). The rear portion is similar to the above diagram. And the design in Figure 8. This example also uses a single: it is similar to the one shown in Figure 7. When using this selection ',', the flow of the other ambient gas 300 that is selected from μα μ ^ θ, preferably the front side of the channel 225 (thermally conductive, and preferably with the image assembly 5 At least one portion of 〇0 ^ U (more preferably the rear portion) is in thermal communication. The inlet opening „ mesh 350 can accept both surrounding gases 310 and 300, or 曰叮” each 疋 can be used for each Gas 31〇 and 300 separate inlet openings. ❹ Similar to some of the previously described examples, the recycle gas 4〇〇 also passes through the electronic components' to facilitate the acceptance of heat from these electronic components. In the example, the electronic board p has been separated into two groups by the hot parent converter 201. The first group of electronic 纟# 卞, and the piece 900 can be regarded as a high power component and can include , but not limited to. Red 丄, 疋 is not limited to · power module, sensor, transformer

Benefits, as well as other power related devices. The second group of electronic components 91 can be considered as low power rainbows and can include, but is not limited to, control panels, hard drives and other storage devices, video drives, microprocessors And other controls. TECHNICAL FIELD I 25 201034558 It is known to those skilled in the art that some highly powered electronic assemblies can be electrically disturbed with other electronic assemblies that may be sensitive to electrical interference. Thus, in the illustrative examples The heat exchanger 2〇1 is used to separate the lower power electronic assembly 91〇 from the high power electronic assembly to ensure that the amount of interference between the two is minimal. In addition, it is known that some power electronics assemblies 900 also generate heat. This heat can be transferred to the recycle gas I00 before introducing this gas into the heat exchanger 2〇1; in the illustrative example shown, ambient air can be drawn in as ambient gas and damage the electrical assembly The risks of 910 and 900 are very high. This is because the surrounding gas 310 preferably never touches these electric combination cows... and because the flow from the circulating gas 400 flows again, the electric combination of the cattle 910 and 9 will continue. Keep it in a cold condition (as well as dry).祀祀,寺i _ The cooling system described in this paper can operate continuously. However, if there is a need for treatment, a temperature sensing device (not shown) can be used in the electronic subject. -〒-〇〇 〇 杇. Within the door to detect when the temperature has reached the predetermined threshold

Limb value. In this case, when the temperature in the display reaches the Q value, the 夂, 人 &; 疋 — 风扇 风扇 风扇 风扇 风扇 风扇 风扇 风扇 风扇 风扇 风扇 风扇 风扇 风扇 风扇 风扇 风扇 风扇 风扇 风扇 风扇 风扇 风扇 风扇 风扇 风扇You can choose to hold it. The ugly system can be constructed to advantageously maintain the display within a temperature range. A typical auto-tuning group is used to achieve '1卞' to be set to &amp; task. The thermocoupler can be used as a temperature sensing device and the fan speed can also be based on the temperature within the display. "The main idea is that the spirit of the disclosed example is as well Range 26 201034558 is provided for cooling of any type of electronic display. By way of example and not limitation, examples may be combined with any of the following types: light emitting diodes (LEDs), organic light emitting bodies (OLEDs), field emission flat panel displays (FEDs). , LED (LEP), organic electro-optic (〇EL), electro-concentration display and Renhe', his flat / 面板 type panel display. Furthermore, examples can be used with other types, displays - including those that have not yet been discovered 疋 ' It is conceivable that the system can be applied quite well to! LED backlight, high quality (1〇8 〇i or ι〇8〇ρ or larger crystal display (LCD) - although the examples described in this article can be well applied to outdoor environments, they can also be applied to the display factory. Thermal stability may be dangerous in indoor applications (eg, factories, wide-ranging environments, mineral baths, changing rooms, kitchens, bathrooms). &quot;Counties should also be aware of the county, __ θ ·,, 'Bei is not in the map The various cooling channels in the system can be ~ 构想 疋 疋 疋 水平 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想 构想The closed loop can be extended horizontally in the direction of the hour hand. In addition, it is only ten times, and can extend from the left side to the right side, from the right side to the left side from the top to the bottom. The bottom of J 丨 丨 疋攸 延伸 延伸 。 。 。 。 。 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在 在In the case of the invention of the invention, it is still in the water. In addition, the μ is still... </ RTI> </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; The description of the patents is the same as the accompanying drawings, which will clearly understand the illustrative embodiments, in which the same components are not in question. Software, as well as in it:

Figure 1 is a perspective view of a typical power module; Figure 2 is a view of two power phantoms mounted within an isolation structure; Figure 3 is a perspective view of an example of an engineer in which cooling air can be used to cool a power module And a backlight assembly; FIG. 4 is a perspective view of an example, except that a heat sink system is now used with the power module, the example is similar to that shown in FIG. 3;

Figure 5 shows a perspective view of an example in which a plurality of channels are established between the backlight assembly and the isolation structure; Figure 7 shows a perspective view of another example using a thermally conductive plate and a number a thermally conductive rib; Figure 8 shows a perspective view of another example in which the ribs are used to distribute heat from a backlight assembly and to cool the backlight assembly; Figure 9 is an example Rear stereo view, in which the cover on the back side of the display has been removed; 28 201034558 Figure 1 0 is a perspective view of another example of the A system showing closed loop and open loop channels; Figure 1 0B is similar to the figure A perspective view of the view shown in FIG. 10A, in which the rear side and the side cover are removed; FIG. 11 is a perspective cross-sectional view showing another example showing the inlet for the surrounding gas and the outlet opening. The ambient gas system is used only within the heat exchanger and has no additional selective passages; and Figure 12 is a perspective cross-sectional view of an illustrative example in which a cross-flow Heat exchangers spaced apart lines were used for high power and low power electrical combination member. [Main component symbol description] 4 - Cooling air 5 - Electronic component 6 - Printed circuit board 7 - Power module 8 - Base plate 9 - Isolation structure 10 - Heat conduction plate 11 - Liner 12 - Heat sink 15 - Channel 16 - Channel divider 17 - Channel fan 29 201034558 18 - Rib 2 0 - Cooling air 25 - Inlet opening 30 - Thermally conductive substrate 32 - Illumination device 35 - Heat conducting surface 5 0 - Fan 5 5 - Heat conducting surface

60 - inlet opening 65 - outlet opening 80 - image assembly 100 - electronic display 1 0 1 - heat exchanger 1 0 2 - closed circuit fan assembly 1 0 3 - closed circuit fan assembly 104 - open circuit fan combination Piece

1 0 5 - open circuit fan assembly 1 1 0 - electronic assembly 140 - backlight assembly 1 4 1 - illumination device 200 - display 201 - heat exchanger 2 0 2 - closed circuit fan assembly 203 - first open circuit Fan assembly 30 201034558 - 204 - second open circuit fan assembly - 2 10 - cycle gas 211 - ambient gas 212 - ambient gas 220 - image assembly 221 - front display surface 222 - backlight assembly 223 - backlight Rear surface (first surface of the open circuit channel) © 224 - second surface of the open circuit channel 225 - open circuit channel 250 - rear cover 251 - side cover 252 - side cover 290 - closed circuit channel 300 - selected additional Ambient gas 310 - ambient gas ® 350 - inlet opening 400 - cycle gas 410 - closed circuit fan assembly 500 - front side surface of the open circuit channel 600 - display assembly 900 - first set of electronic components (high power components) 9 1 0 - second set of electronic components (low power components) 31

Claims (1)

201034558 VII. Patent Application Range·· - Stupid: · A cooling system for an electronic shirt assembly having a front side portion and a rear side portion, the system comprising: a front display surface, Gan a $ π The front side of the electronic image assembly is composed of a front display surface and an electronic image set: a heat exchanger connected to the two bodies and connected to the channel by gas. a young fan-fan assembly, which is positioned to move (4) (4) the passage and the first gas path; and the shield body pushes a second fan assembly, and moves through the second gas Path: The position is to force the surrounding gas to push = please refer to the cooling system described in item 1 of the patent scope, where ❹ ::::: is a system of cross-flow and flow heat exchangers. The cooling system of the present invention further comprises a plate member which is separated from the second channel of the electric, the second image, and the rear side portion of the fitting; the space between the rear side portions Boundary: plate and electronic image assembly It causes the second wind generator to come out, and the fan-fan assembly is pushed into the second passage. The V is positioned to surround the gas (such as the cold heading system of the patent application scope &amp; The advance package 32 201034558 includes: a power module electrically connected to the electronic image assembly; and a heat sink connected to the power module and placed in the first - within the channel. 5. If the cooling system described in Scope 3 or 4 is applied, the following steps include: a plurality of 6-type electronic display assemblies disposed within the second channel, comprising: an electronic image assembly; an isolation structure separated from the electronic y 卞 ～ image assembly Open; a channel 'defined by the space between the structure and the electronic shadow between the 卩 杂 杂 Μ孓 ; ; ; ; ; ; ; ; ; ; a power module having a heat sinking on the first member and a second side, such that the heat sink is attached to the outer side of the channel; and the side has a plurality of electronic, "the power module is connected within the attached channel and the electric fan is set to be 7. The patent application scope 6 further includes: the surrounding gas pumping Electron is drawn through the channel. A display assembly, a rib that is placed in thermal communication with the structure of the channel. And the isolation as described in claim 7, further comprising: an electronic display assembly, 33, 33,034,558 - a surface of which the money 1 is in the (four) way and like the assembly and the ribs The heat is connected. The electronic image 9 of the invention is as claimed in claim 6, wherein the electronic display assembly is a liquid crystal display. 1 如·If you apply for the patent range 6' 7 and 8 of its sub-display assembly, where: the electric electronic image of the item described in the item is an 0LE ❿ 11·-electronic display assembly , its package =. An electronic image assembly having a portion; a side and a back side surface 'which are attached to the electronic image and are imaged on the back side of the electronic image 6 people', '5' The pieces are in thermal communication; a plate member is separated from the surface; a first channel - defined by the intervening space. The plate member and the surface of the surface It is in thermal communication with the electronic component and the electronic component of the image forming assembly, and a first fan, the first channel thereof. The system is clamped to draw the surrounding gas pomelo through the 12. The electronic display of the invention includes a rib that is placed on the first plate and It is believed that the two channels are in thermal communication with the surface of the description. 34 channels' 201034558 U. The article of claim 12, further comprising:, a peripheral display surface separated from the electrical front side; ..., | /j', factory, The ground factory rj describes a space heat exchanger between the front side portions of the electronic shirt image assembly, and the heat exchange port of the second pass 3 has a first and a second gas path name path system and the The first channel: the channel is connected by gas; the first: "fan" is positioned to circulate the first gas around the first; and a third fan, the flute - 帛, t, ,; Loop | a channel and the first gas path. 14. The sub-display assembly, wherein: ’, the electronic image assembly is a kiss, as claimed in claim U. 15. For the sub-display assembly of claim 11 to 13, wherein: ” the electronic image assembly is an oled. VIII. Schema: (such as the next page) The display surface of the electronic display combined sub-image assembly Μ 界定 界定 ; ; ; ; ; ; ; ; ; 以 以 以 以 以 以 以 以 以 以 以 以 以 以 以 以 以 以 以 以 以 以 以 以 以 以 以 以 以