CN103582385B - Outdoor electronic newspaper stand and fast cooling device thereof - Google Patents
Outdoor electronic newspaper stand and fast cooling device thereof Download PDFInfo
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- CN103582385B CN103582385B CN201210270530.9A CN201210270530A CN103582385B CN 103582385 B CN103582385 B CN 103582385B CN 201210270530 A CN201210270530 A CN 201210270530A CN 103582385 B CN103582385 B CN 103582385B
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- 238000001816 cooling Methods 0.000 title abstract description 6
- 230000017525 heat dissipation Effects 0.000 claims description 105
- 238000010438 heat treatment Methods 0.000 claims description 7
- 238000005192 partition Methods 0.000 claims description 7
- 230000005494 condensation Effects 0.000 abstract description 3
- 238000009833 condensation Methods 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 abstract 1
- 239000003570 air Substances 0.000 description 217
- 238000007664 blowing Methods 0.000 description 8
- 239000000428 dust Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
- 238000013499 data model Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
A kind of outdoor electronic newspaper stand and fast cooling device thereof, described heat abstractor includes: the first relative panel and the second panel, the 3rd relative panel and fourth face plate, and described 3rd panel and fourth face plate are adjacent with described first panel and the second panel；It is located at described first panel, the air outlet of close described fourth face plate and is located at described first panel, the return air inlet of close described 3rd panel；It is located at described second panel, the air inlet of close described fourth face plate and is located at the air outlet of described second panel；It is located at the heat exchanger components between described first panel and the second panel.The rapid heat radiation device power consumption of technical solution of the present invention is little, low cost, does not haves dew condensation phenomenon when dispelling the heat electronic equipment.
Description
Technical Field
The invention relates to an outdoor electronic newspaper reading board and a quick heat dissipation device thereof.
Background
With the rapid development of electronic technologies and integrated circuits, the total power density of electronic components is greatly increased, the physical size is smaller and smaller, and the heat flux density is increased, so that the internal temperature of the electronic components is continuously increased.
At present, electronic equipment is miniaturized and lightened with high power density, high reliability and high efficiency. For electronic equipment, over half of failures of the electronic equipment are caused by overtemperature, the failure rate of the electronic equipment exponentially increases along with the increase of the temperature, and the development of miniaturization and light weight of the electronic equipment is hindered due to poor heat dissipation of the electronic equipment. In addition, for the electronic device, besides thermal failure, if the ambient temperature of the electronic device is too low, the electronic device may also fail and fail to operate normally.
The outdoor electronic newspaper reading column is electronic equipment for people to read newspapers in public places, a user can select the newspapers to be read through a touch screen, the outdoor electronic newspaper reading column provides a large amount of rich information for readers, and the outdoor electronic newspaper reading column can update the information in real time through the Internet. For outdoor electronic newspaper reading boards located outdoors, if the electronic newspaper reading boards are installed in the south with hot climate or the north with cold climate, it is more important to provide a constant temperature environment for the electronic newspaper reading board box so that the outdoor electronic newspaper reading boards can work normally. Therefore, providing a relatively constant temperature environment for the outdoor electronic bulletin board so that the outdoor electronic bulletin board can work normally is one of the problems to be solved.
The chinese patent application with publication number 201035935 provides a multifunctional electronic newspaper reading board, which comprises a newspaper reading board, wherein the newspaper reading board is at least provided with an electronic display device, the electronic display device is connected with a control circuit, the control circuit is connected with a memory, meanwhile, the newspaper reading board is provided with a plurality of control reading keys, the newspaper reading board is also provided with an earphone for the blind, and the earphone is connected with a voice navigation circuit. But it does not relate to the above problems.
Disclosure of Invention
The technical problem solved by the invention is to provide constant temperature for the outdoor electronic bulletin board so as to ensure that the outdoor electronic bulletin board can work normally.
In order to solve the above technical problems, the present invention provides a rapid heat dissipation device for an outdoor electronic newspaper reading board, including:
first and second opposing panels, third and fourth opposing panels, the third and fourth panels being adjacent to the first and second panels;
the air supply outlet is arranged on the first panel and is close to the fourth panel, and the air return inlet is arranged on the first panel and is close to the third panel;
the air inlet is arranged on the second panel and is close to the fourth panel, and the air outlet is arranged on the second panel;
and the heat exchange component is arranged between the first panel and the second panel.
Optionally, quick heat abstractor of outdoor electron newspaper billboard still include: and the fans are respectively arranged at the air supply outlet, the air return inlet, the air inlet and the air outlet.
Optionally, the air supply outlet and the air outlet are symmetrically arranged.
Optionally, quick heat abstractor of outdoor electron newspaper billboard still include: and the heater is arranged between the first panel and the second panel and is used for heating the inlet air of the air inlet.
Optionally, the heater is a heat pump.
Optionally, the air supply outlet and the air outlet are air grids, and the air return inlet and the air inlet are air holes.
In order to solve the above technical problem, the technical solution of the present invention further provides an outdoor electronic newspaper billboard, including: the box body, the touch screen and the display screen, wherein the touch screen is arranged on the front panel of the box body,
the display screen is arranged in the box body and is spaced from the touch screen;
outdoor electron newspaper billboard still includes: in the above-mentioned rapid heat dissipation device, the rapid heat dissipation device is disposed in the box body and close to the rear panel of the box body, wherein,
the air supply outlet is close to the bottom of the box body;
a first air channel is formed between the air supply outlet and the air return inlet and passes through the interval between the display screen and the touch screen and the heat exchange component;
and a second air duct is formed between the air inlet and the air outlet and passes through the heat exchange component.
Optionally, the box body is a closed box body.
Optionally, the outdoor electronic bulletin board further comprises: and the spoiler is arranged between the display screen and the quick heat dissipation device and used for changing the air supply direction of the air supply outlet.
Optionally, the outdoor electronic bulletin board further comprises: locate in the box, with the circuit board that touch-sensitive screen and display screen are connected, the circuit board is parallel and is close to the display screen.
Optionally, the bottom of the front panel of the box body is an arc surface.
Optionally, the outdoor electronic bulletin board further comprises: and the clapboard is used for connecting the quick heat dissipation device and the rear panel of the box body.
Optionally, the partition is disposed in the middle of the second panel.
Optionally, the first air duct is smaller than or equal to 2 meters.
Compared with the prior art, the technical scheme of the invention has the following advantages:
the heat dissipation device only realizes heat dissipation of the electronic equipment through the heat exchange component and the heater, and because a compressor is not adopted to generate hot air or cold air, on one hand, the power consumption and the cost of the heat dissipation device are reduced, and on the other hand, because the compressor is not adopted, the condensation phenomenon cannot occur to the electronic equipment which adopts the heat dissipation device to dissipate heat.
Through being equipped with heat abstractor in outdoor electron newspaper billboard box, and make to have the interval between touch-sensitive screen and the display screen and improved the heat dissipation to touch-sensitive screen and display screen.
Furthermore, the circuit board connected with the touch screen and the display screen is parallel to and close to the display screen, so that the heat dissipation area of the display screen is increased, cold air passes through the front surface and the back surface of the display screen, and the heat dissipation of the display screen is greatly improved.
Through first wind channel dispels the heat to the inside of electron newspaper billboard box, because the wind via first wind channel flows inside the box all the time, just the box is airtight box, so can prevent that outside dust and steam from getting into inside the box, prevented the production of bad consequence.
The air supply direction of the air supply opening of the heat dissipation device is changed by arranging the spoiler between the display screen and the heat dissipation device, so that cold air can be blown to the touch screen, the display screen and the circuit board as vertically as possible, and the heat dissipation of the interior of the electronic newspaper reading board box is accelerated.
Furthermore, the bottom of the front panel of the electronic newspaper reading board box body is designed to be a cambered surface, so that the air supply direction of an air supply opening of the heat dissipation device is changed, the air speed is increased, the air quantity sent out by the air supply opening is fully utilized, and the heat dissipation of the interior of the electronic newspaper reading board box body is improved to a great extent.
The heat dissipation device is connected with the rear panel of the electronic newspaper reading board box through the partition board, on one hand, rainwater is prevented from flowing into the inside of the heat dissipation device through the holes in the rear panel, the influence on the performance of the heat dissipation device is reduced, on the other hand, the phenomenon that hot air exhausted from the air outlet flows back to the air inlet is avoided, so that the heat exchange component is cooled thoroughly, and further the heat dissipation inside the electronic newspaper reading board box is sufficient.
The first air channel is smaller than or equal to 2 meters, so that the air supply speed and the constant air quantity of an air supply outlet of the heat dissipation device are ensured, and the heat dissipation of the interior of the electronic bulletin board box body is improved.
Drawings
FIG. 1 is a front view of a quick heat dissipation device for an outdoor electronic bulletin board of an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a quick heat dissipation device of an outdoor electronic bulletin board of an embodiment of the present invention;
FIG. 3 is a rear view of the rapid heat dissipation device of the outdoor electronic bulletin board of the embodiment of the invention;
fig. 4 is a cross-sectional view of an outdoor electronic bulletin board of an embodiment of the present invention.
Detailed Description
As described in the background art, it is important to provide a constant temperature environment for the outdoor electronic bulletin board box because the outdoor electronic bulletin board is in an outdoor environment with different temperatures for a long time.
The inventor finds that, in the prior art, for heat dissipation of an outdoor electronic bulletin board, an air supply opening is usually arranged at the bottom of an outdoor electronic bulletin board box, cold air is supplied into the electronic bulletin board box through the air supply opening to dissipate heat of electronic equipment in the box, and then hot air in the box is drawn away by a ventilation fan arranged on one side of the box, so that air flow inside the whole box and air flow outside the box form a single cycle, and further the electronic equipment in the whole box is dissipated. However, the single-cycle heat dissipation method has certain disadvantages, and firstly, the cool air fed from the air supply opening is usually ambient air, which is called cool air because the temperature of the ambient air is lower than that of the electronic equipment inside the box body. However, as the temperature of the external environment continuously rises, the temperature of the cold air sent by the air supply opening also continuously rises, so that the heat dissipation of the interior of the electronic bulletin board box body is reduced to a great extent. Secondly, because the heat dissipation is carried out in the mode of adopting the single circulation, consequently, outside dust and steam are very easy to get into inside the box along with outside cold wind, and then produce the adverse effect to the electronic equipment of box inside. In addition, the prior art mainly focuses on heat dissipation of the outdoor electronic bulletin board, and does not relate to how to ensure that the outdoor electronic bulletin board can normally work in an environment with relatively low temperature.
The inventor analyzes the distribution characteristics of cold and hot air flows in the box body of the outdoor electronic bulletin board, the lower part of the box body is low, the upper part of the box body is high, and the box body is distributed in a gradient way, so that a corresponding data model is established for the temperature condition on the height of the internal space of the box body of the outdoor electronic bulletin board, specifically,
suppose that the height of the space between the bottom and the top of the box body of the electronic bulletin board is H, the height of the point in the box body from the bottom of the box body is x, and a flow velocity omega exists in the box body0The vertical ascending or descending airflow of (2) is provided with a box bottom (x = 0)At a temperature of t0The temperature at the top of the tank (x = H) is tHAssuming that the specific heat transfer per unit mass of the air medium is a constant in a first order approximation when the interior of the tank is the air medium, then in this case, the distribution equation of the temperature inside the tank in the air medium can be derived from the thermodynamic equation Δ Q = Cm Δ t as follows:
wherein: q (x) is the heat dissipated at a point inside the tank at a height x from the bottom of the tank, λ is the heat transfer coefficient of air, CPIs the specific heat of air, gamma is the mass of air per unit, x is the height of a point inside the tank from the bottom of the tank, t is the temperature of a point inside the tank, omega0Is the air flow rate.
From the above formula, it can be known that the air flow rate ω is for the electronic bulletin board box0Is a key parameter, ω0The larger the temperature t is, the higher the temperature t is at the point x in the boxxThe smaller the step change, the smaller the temperature gradient change, and the temperature inside the tank will tend to be constant. However, for the electronic newspaper reading board, the rate of the cold air fed by the air supply opening cannot be zeroThe limit is increased, so besides providing cold air at a certain speed through the air supply opening, the internal environment of the box body of the electronic bulletin board needs to be optimized to ensure that the cold air fed by the air supply opening flows more smoothly in the box body and plays a role in the maximum efficiency.
The inventor proposes that a heat dissipation device is arranged on a rear panel close to an electronic newspaper reading board box body, cold air sent by an air supply opening of the heat dissipation device is used for cooling the interior of the electronic newspaper reading board box body, the cold air which is cooled through the interior of the box body and becomes hot is sent into the heat dissipation device again through an air return opening of the heat dissipation device, after being cooled through a heat exchange part of the heat dissipation device, the cold air is still sent out through the air supply opening to cool the interior of the electronic newspaper reading board box body, and the heat exchange part is cooled through the cold air between an air inlet and an air outlet of the heat dissipation device, so that the air sent out through the air supply opening of the heat dissipation device is ensured to be always cold air, and the interior of.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be implemented in a number of ways different from those described herein and similar generalizations can be made by those skilled in the art without departing from the spirit of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
Fig. 1 is a front view of a quick heat dissipation device for an outdoor electronic newspaper billboard according to an embodiment of the present invention, fig. 2 is a cross-sectional view of the quick heat dissipation device for the outdoor electronic newspaper billboard according to the embodiment of the present invention, fig. 3 is a rear view of the quick heat dissipation device for the outdoor electronic newspaper billboard according to the embodiment of the present invention, and the quick heat dissipation device for the outdoor electronic newspaper billboard according to the embodiment of the present invention is described in detail below with reference to fig. 1, fig. 2, and fig. 3.
With reference to fig. 1, fig. 2 and fig. 3, in this embodiment, the rapid heat dissipation device 1 (hereinafter referred to as the heat dissipation device 1) of the outdoor electronic newspaper reading board includes: first 101 and second 102 opposing panels, third 103 and fourth 104 opposing panels, the third 103 and fourth 104 panels being adjacent to the first 101 and second 102 panels; an air supply outlet 105 provided in the first panel 101 and adjacent to the fourth panel 104, and an air return outlet 106 provided in the first panel 101 and adjacent to the third panel 103; an air inlet 107 arranged on the second panel 102 and close to the fourth panel 104, and an air outlet 108 arranged on the second panel 102; and a heat exchange member 109 disposed between the first panel 101 and the second panel 102.
In this embodiment, the first panel 101 is a front panel of the heat dissipation device 1, the second panel 102 is a rear panel of the heat dissipation device 1, the third panel 103 is an upper panel of the heat dissipation device 1, and the fourth panel 104 is a lower panel of the heat dissipation device 1. The air supply opening 105 is provided with a fan (not shown in the figure), and the air supply opening 105 can be a wind grid. The air return opening 106 is provided with a fan 106a, and the air return opening 106 can be an air hole. The air inlet 107 is provided with a fan 107a, and the air inlet 107 may be an air hole. The air outlet 108 is provided with a fan (not shown in the figure). It should be noted that, in this embodiment, the fans arranged at the air supply opening 105, the air return opening 106, the air inlet 107 and the air outlet 108 not only represent one fan, but also represent a group of fans, and the number of the fans is determined by actual requirements.
In the present embodiment, the fan provided in the air blowing port 105 is used to blow the cool air in the vicinity thereof to the electronic equipment to be cooled. The cold air is changed into hot air after passing through the electronic device, and the fan 106a disposed at the air return opening 106 sends the hot air to the inside of the heat sink 1, and is cooled by the heat exchange member 109 disposed between the first panel 101 and the second panel 102 of the heat sink 1. The heat exchange unit 109 cools the hot air returned from the air return port 106, and then heats itself, and in order to cool the heat exchange unit 109, the fan 107a provided at the air inlet 107 draws outside cold air into the heat dissipation device 1, and cools the heat exchange unit 109 by the cold air fed from the air inlet 107, and draws out the cold air that has been cooled by the heat exchange unit 109 by the fan at the air outlet 108.
In this embodiment, the air supply opening 105 provided in the first panel 101 and the air outlet 108 provided in the second panel 102 are symmetrically provided, and the heat exchange component 109 is a vacuum superconducting heat sink.
In this embodiment, heat abstractor 1 not only can dispel the heat to electronic equipment, and it still can provide the temperature that is higher than external environment for electronic equipment in cold environment, and everybody is well, and northern winter can reach ten degrees centigrade to twenty degrees centigrade below zero often, and for the electron device in the electronic equipment, its normal operating temperature is more than twenty degrees centigrade usually, and consequently, the external temperature is too low, also can lead to electronic equipment can't normally work. In order to ensure that the electronic device can normally operate, in this embodiment, a heater 110 is disposed between the first panel 101 and the second panel 102 of the heat dissipation apparatus 1, in this embodiment, the heater 110 may be a heating pump, and is configured to heat cold air sent by a fan 107a of the air inlet 107, the heated cold air is changed into hot air to heat the heat exchanging component 109, after the hot air heats the heat exchanging component 109, the temperature of the heat exchanging component 109 is lowered, and finally, the fan of the air outlet 108 pumps out the hot air that is cooled after the heat exchanging component 109 is heated. The fan 105a of the air supply opening 105 sends the hot air (at this time, the temperature of the air near the air supply opening is higher than the ambient temperature because the heat exchange component 109 is heated, and the air formed after the fan 105a rotates is called hot air) to the electronic equipment to be heated, the hot air is changed into cold air after passing through the electronic equipment, and the fan 106a arranged at the air return opening 106 sends the cold air to the heat dissipation device 1 and is heated by the heat exchange component 109 positioned between the first panel 101 and the second panel 102 of the heat dissipation device 1. The heated cold air is continuously sent to the electronic device through the fan of the air supply opening 105, generally speaking, the heat dissipation device 1 is provided with a temperature monitoring device 112, when it is monitored that the ambient temperature of the electronic device reaches a temperature suitable for normal operation of electronic devices in the electronic device, the heater 110 is controlled to stop heating, and then the heat emitted during the operation of the electronic device can maintain the ambient temperature around the electronic device in a stable state, so that the electronic device can operate normally.
As can be seen from the above description, the heat dissipation apparatus 1 in this embodiment can not only dissipate heat of the electronic device, but also heat the environment temperature of the electronic device, so that the heat dissipation apparatus 1 in this embodiment can provide an appropriate temperature for the electronic device, so that the electronic device can operate normally.
Referring to fig. 4, fig. 4 is a cross-sectional view of an outdoor electronic bulletin board according to an embodiment of the present invention, and as shown in fig. 4, an outdoor electronic bulletin board 2 according to an embodiment of the present invention includes: the case 203, the touch screen 205, the display screen 206, and the heat dissipation device 1 described above, with reference to fig. 1 to 4:
the touch screen 205 is arranged on the front panel 201 of the box body 203, and the display screen 206 is arranged in the box body 203 and spaced from the touch screen 205; the heat dissipation device 1 is arranged in the box body 203 and close to the rear panel 202 of the box body 203, and the air supply opening 105 is close to the bottom of the box body 203; a first air duct is formed between the air supply opening 105 and the air return opening 106, and passes through the interval between the display screen 206 and the touch screen 205 and the heat exchange part 109; a second air duct is formed between the air inlet 107 and the air outlet 108, and the second air duct passes through the heat exchange part 109.
As known to those skilled in the art, for the electronic bulletin board, the largest heat dissipation source is the display screen 206, and in order to sufficiently dissipate heat of the display screen 206 inside the electronic bulletin board box 203 by using the cool air sent by the heat dissipation device 1, in this embodiment, the touch screen 205 and the display screen 206 are not tightly attached together, but have a certain interval therebetween, specifically, the display screen 206 may be close to the touch screen 205, or the display screen 206 and the touch screen 205 are parallel to each other, so that the cool air sent by the heat dissipation device 1 can pass between the touch screen 205 and the display screen 206, and thus the touch screen 205 and the display screen 206 can be sufficiently dissipated.
In this embodiment, the air supply outlet 105 of the heat dissipation device 1 is close to the bottom of the box 203 of the electronic newspaper reading board 2, the fan disposed in the air supply outlet 105 directly supplies cold air to the channel between the touch screen 205 and the display screen 206 to fully dissipate heat of the touch screen 205 and the display screen 206, the cold air is changed into hot air as the cold air takes away heat of the touch screen 205 and the display screen 206, the hot air is drawn out by the fan 106a disposed at the air return inlet 106 of the heat dissipation device 1 and is supplied to the heat exchange component 109 inside the heat dissipation device 1, the hot air returned from the air return inlet 106 is cooled by the heat exchange component 109, the hot air is cooled by the heat exchange component 109 and then is changed into cold air, the cold air is continuously supplied to the touch screen 205 and the display screen 206 by the fan of the air supply outlet 105, and the cold air passes through the gap between the touch screen 205 and the. The cool air sent from the air supply opening 105 passes through the gap between the touch panel 205 and the display panel 206, the air return opening 106, and the heat exchange member 109 and then returns to the air supply opening 105, thereby forming a first air passage inside the box 203, or forming an internal circulation inside the box 203, and because the internal circulation is always performed inside the box 203, or the air passing through the first air passage always flows inside the box 203. Because the box 203 is a closed box in this embodiment, it is possible to prevent external dust and water vapor from entering the box 203, and further avoid the phenomenon that the electronic equipment inside the box 203 is corroded due to acidic substances generated by the combination of the dust and the water vapor, which results in the shortened life of the electronic equipment.
For the cooling of the heat exchange component 109, reference may be made to the above-mentioned cooling of the heat exchange component 109 in the heat dissipation device 1, and a detailed description is not repeated here, and for the second air duct formed by the air inlet 107, the heat exchange component 109 and the air outlet 108, since the second air duct cools the heat exchange component 109 by the cold air of the external environment and discharges the cold air heated by cooling the heat exchange component 109 to the external environment, the second air duct is also called as an external circulation. In this embodiment, the inside of the electronic bulletin board box 203 is cooled by the internal circulation, and the heat exchanging component 109 in the heat sink 1 is cooled by the external circulation, that is, the inside of the box 203 of the electronic bulletin board 2 is sufficiently cooled by the cooperation of the internal circulation and the external circulation.
In this embodiment, the electronic bulletin board 2 further includes a circuit board 207 disposed in the box 203 and connected to the touch screen 205 and the display screen 206, in order to sufficiently dissipate heat from the display screen 206 and the circuit board 207, the circuit board 207 is parallel to and close to the display screen 206, that is, an air duct is also disposed between the display screen 206 and the circuit board 207, so that, for the display screen 206 serving as a main heat dissipation source of the electronic bulletin board 2, the heat dissipation area of the display screen 206 is increased, so that both the front surface and the back surface of the display screen have cold air to pass through, and further, the heat dissipation of the display screen 206 is further performed, and thus, the heat dissipation of the display screen 206 is greatly increased.
In this embodiment, the amount of cold air blown from the air outlet 105 of the heat sink 1 is generally constant, and in order to allow the cold air blown from the air outlet 105 of the heat sink 1 to be blown as far as possible to the touch panel 205, the display panel 206, and the circuit board 207 inside the box 203 of the electronic bulletin board 2, a spoiler 111 for changing the direction of the air blown from the air outlet 105 of the heat sink 1 is provided between the display panel 206 and the heat sink 1. Specifically, the spoiler 111 may be disposed on the first panel 101 of the heat sink 1 in this embodiment.
Furthermore, the bottom of the front panel 201 of the box 203 of the electronic bulletin board 2 may be designed as a curved surface to further change the blowing direction of the blowing port 105 of the heat dissipation device 1, that is, the cold air blown from the blowing port 105 is forced to flow downward by the spoiler 111, and then is blown vertically upward along the arc corner of the front panel 201 of the box 203, that is, the cold air can be blown vertically toward the touch screen 205, the display screen 206 and the circuit board 207. Furthermore, the air speed is increased by adding the spoiler 111 between the display screen 206 and the heat sink 1 and designing the bottom of the front panel 201 of the box 203 of the electronic bulletin board 2 as a cambered surface, so that the air volume sent by the air supply opening 105 is fully utilized, and the heat dissipation of the interior of the box 203 of the electronic bulletin board 2 is improved to a great extent. In addition, the bottom and the top of the front panel 201 are designed to be cambered surfaces, so that the electronic bulletin board is more attractive.
In this embodiment, the heat dissipating device 1 is not directly attached to the rear panel 202 of the box 203 of the electronic bulletin board 2, but the heat dissipating device 1 is connected to the rear panel 202 of the box 203 through the partition 209, which is mainly done because a plurality of holes are usually formed on the rear panel 202 of the box 203 of the electronic bulletin board 2 for discharging the hot air from the air outlet 108, and the partition 209 is disposed between the heat dissipating device 1 and the rear panel 202 of the box, so that on one hand, when raining, rainwater is prevented from flowing into the interior of the heat dissipating device 1 through the holes of the rear panel 202, which affects the performance of the heat dissipating device 1, and on the other hand, hot air discharged from the air outlet 108 is prevented from flowing back to the air inlet 107, so that the inlet air of the air inlet 107 is no longer cold air, which cannot cool the heat dissipating component 109 well, and further cannot cool the touch screen 205 inside the box 203 of the electronic bulletin board 2 The display screen 206, the circuit board 207, and the like perform excellent heat dissipation. In this embodiment, the partition 209 is preferably disposed at two thirds of the second panel 202.
In this embodiment, in order to ensure the constant blowing speed and the constant blowing amount of the blowing port 105 of the heat dissipation device 1, the blowing port 105 should be as close as possible to the part to be dissipated inside the box 203 of the electronic bulletin board 2, especially the display 206, and the first air duct should be less than or equal to 2 meters.
In addition, in this embodiment, in order to improve the heat dissipation effect on the inside of the box 203 of the electronic bulletin board 2 as much as possible, it is also prohibited to arrange any cable and bridge at the bottom of the box 203, so as to ensure that there is no resistance between the air supply opening 105 and the air return opening 106 of the heat dissipation device 1, so that the path between the two is kept smooth, and the safety inside the box 203 is also ensured.
In this embodiment, for the electronic bulletin board installed outdoors, too low ambient temperature in winter may also cause the electronic bulletin board 2 to not work normally, so the heat dissipation device 1 may also be used to heat the electronic bulletin board 2, that is, the internal environment of the box 203 of the electronic bulletin board 2 is heated by internal circulation, the heat exchange component 109 of the heat dissipation device 1 is heated by external circulation, and as for the process of the heat dissipation device 1 heating the inside of the box 203 of the electronic bulletin board 2, the process of the heat dissipation device 1 heating the ambient temperature of the electronic device may be referred to, and detailed description is not given here. Therefore, the outdoor electronic bulletin board 2 in the embodiment enables the inside of the electronic bulletin board box to be always at a constant temperature through the heat dissipation device 1 arranged therein, thereby ensuring that the outdoor electronic bulletin board 2 can normally work.
In summary, the technical scheme of the invention has at least the following beneficial effects:
the heat dissipation device only achieves heat dissipation and heating of the electronic equipment through the heat exchange component and the heater, hot air or cold air is generated in a compressor-free mode, power consumption and cost of the heat dissipation device are reduced on one hand, and on the other hand, condensation phenomenon cannot occur on the electronic equipment which conducts heat dissipation through the heat dissipation device due to the fact that the compressor is not adopted.
Through being equipped with heat abstractor in outdoor electron newspaper billboard box, and make to have the interval between touch-sensitive screen and the display screen and improved the heat dissipation to touch-sensitive screen and display screen.
Furthermore, the circuit board connected with the touch screen and the display screen is parallel to and close to the display screen, so that the heat dissipation area of the display screen is increased, cold air passes through the front surface and the back surface of the display screen, and the heat dissipation of the display screen is greatly improved.
Through first wind channel dispels the heat to the inside of electron newspaper billboard box, because the wind via first wind channel flows inside the box all the time, just the box is airtight box, so can prevent that outside dust and steam from getting into inside the box, prevented the production of bad consequence.
The air supply direction of the air supply opening of the heat dissipation device is changed by arranging the spoiler between the display screen and the heat dissipation device, so that cold air can be blown to the touch screen, the display screen and the circuit board as vertically as possible, and the heat dissipation of the interior of the electronic newspaper reading board box is accelerated.
Furthermore, the bottom of the front panel of the electronic newspaper reading board box body is designed to be a cambered surface, so that the air supply direction of an air supply opening of the heat dissipation device is changed, the air speed is increased, the air quantity sent out by the air supply opening is fully utilized, and the heat dissipation of the interior of the electronic newspaper reading board box body is improved to a great extent.
The heat dissipation device is connected with the rear panel of the electronic newspaper reading board box through the partition board, on one hand, rainwater is prevented from flowing into the inside of the heat dissipation device through the holes in the rear panel, the influence on the performance of the heat dissipation device is reduced, on the other hand, the phenomenon that hot air exhausted from the air outlet flows back to the air inlet is avoided, so that the heat exchange component is cooled thoroughly, and further the heat dissipation inside the electronic newspaper reading board box is sufficient.
The first air channel is smaller than or equal to 2 meters, so that the air supply speed and the constant air quantity of an air supply outlet of the heat dissipation device are ensured, and the heat dissipation of the interior of the electronic bulletin board box body is improved.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention, and those skilled in the art can make variations and modifications of the present invention without departing from the spirit and scope of the present invention by using the methods and technical contents disclosed above.
Claims (13)
1. An outdoor electronic newspaper billboard, comprising: a box body, a touch screen and a display screen, wherein the touch screen is arranged on the front panel of the box body,
the display screen is arranged in the box body and is spaced from the touch screen;
outdoor electron newspaper billboard still includes: a rapid heat dissipation device which is arranged in the box body and is close to the rear panel of the box body,
the quick heat dissipation device comprises: first and second opposing panels, third and fourth opposing panels, the third and fourth panels being adjacent to the first and second panels; the air supply outlet is arranged on the first panel and is close to the fourth panel, and the air return inlet is arranged on the first panel and is close to the third panel; the air inlet is arranged on the second panel and is close to the fourth panel, and the air outlet is arranged on the second panel; the heat exchange component is arranged between the first panel and the second panel;
wherein,
the air supply outlet is close to the bottom of the box body;
a first air channel is formed between the air supply outlet and the air return inlet and passes through the interval between the display screen and the touch screen and the heat exchange component;
and a second air duct is formed between the air inlet and the air outlet and passes through the heat exchange component.
2. The outdoor electronic bulletin board of claim 1, further comprising: and the fans are respectively arranged at the air supply outlet, the air return inlet, the air inlet and the air outlet.
3. An outdoor electronic bulletin board of claim 1, wherein the air supply opening and the air outlet are symmetrically arranged.
4. The outdoor electronic bulletin board of claim 1, further comprising: and the heater is arranged between the first panel and the second panel and is used for heating the inlet air of the air inlet.
5. The outdoor electronic bulletin board of claim 4, wherein the heater is a heat pump.
6. An outdoor electronic bulletin board of claim 1, wherein the air supply opening and the air outlet are air grids, and the air return opening and the air inlet are air holes.
7. The outdoor electronic bulletin board of claim 1, wherein the box is a sealed box.
8. The outdoor electronic bulletin board of claim 1, further comprising: and the spoiler is arranged between the display screen and the quick heat dissipation device and used for changing the air supply direction of the air supply outlet.
9. The outdoor electronic bulletin board of claim 1, further comprising: locate in the box, with the circuit board that touch-sensitive screen and display screen are connected, the circuit board with the display screen is parallel, just the circuit board is close to the display screen.
10. The outdoor electronic bulletin board of claim 1, wherein the bottom of the front panel of the box body is an arc surface.
11. The outdoor electronic bulletin board of claim 1, further comprising: and the clapboard is used for connecting the quick heat dissipation device and the rear panel of the box body.
12. The outdoor electronic bulletin board of claim 11, wherein the partition is disposed at two-thirds of the second panel.
13. The outdoor electronic bulletin board of claim 1, wherein the first air duct is less than or equal to 2 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210270530.9A CN103582385B (en) | 2012-07-31 | 2012-07-31 | Outdoor electronic newspaper stand and fast cooling device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210270530.9A CN103582385B (en) | 2012-07-31 | 2012-07-31 | Outdoor electronic newspaper stand and fast cooling device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103582385A CN103582385A (en) | 2014-02-12 |
| CN103582385B true CN103582385B (en) | 2016-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210270530.9A Expired - Fee Related CN103582385B (en) | 2012-07-31 | 2012-07-31 | Outdoor electronic newspaper stand and fast cooling device thereof |
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| Country | Link |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103985329A (en) * | 2014-05-15 | 2014-08-13 | 无锡同春新能源科技有限公司 | Newspaper reading fence with air purifying function |
| CN104684363B (en) * | 2015-02-13 | 2017-07-21 | 华为技术有限公司 | A kind of outdoor display screen and communication equipment |
| CN115604965B (en) * | 2022-12-15 | 2023-03-07 | 南京积芯力科技有限公司 | Radio frequency power supply and temperature regulation and control method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201044454Y (en) * | 2007-04-04 | 2008-04-02 | 北京万视通科技有限公司 | Multimedia electric paper board device |
| CN101592807A (en) * | 2008-05-27 | 2009-12-02 | 深圳市新超亮特种显示设备有限公司 | A kind of LCDs with heat abstractor |
| CN101965120A (en) * | 2010-09-27 | 2011-02-02 | 同辉佳视(北京)信息技术有限公司 | Heat dissipation equipment and outdoor display cabinet of outdoor display |
-
2012
- 2012-07-31 CN CN201210270530.9A patent/CN103582385B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201044454Y (en) * | 2007-04-04 | 2008-04-02 | 北京万视通科技有限公司 | Multimedia electric paper board device |
| CN101592807A (en) * | 2008-05-27 | 2009-12-02 | 深圳市新超亮特种显示设备有限公司 | A kind of LCDs with heat abstractor |
| CN101965120A (en) * | 2010-09-27 | 2011-02-02 | 同辉佳视(北京)信息技术有限公司 | Heat dissipation equipment and outdoor display cabinet of outdoor display |
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| CN103582385A (en) | 2014-02-12 |
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Address after: 201203 room 570, No. 707, midsummer Road, Zhangjiang national digital publishing base, Shanghai, Pudong New Area Applicant after: SHANGHAI KUANGLONG DIGITAL TECHNOLOGY CO.,LTD. Address before: 201203, room 570, No. 705, midsummer Road, Zhangjiang hi tech park, Shanghai, Pudong New Area Applicant before: SHANGHAI KUANGLONG DIGITAL TECHNOLOGY Co.,Ltd. |
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