CN213638706U - Heat radiator for electron stop borad - Google Patents
Heat radiator for electron stop borad Download PDFInfo
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- CN213638706U CN213638706U CN202022775586.2U CN202022775586U CN213638706U CN 213638706 U CN213638706 U CN 213638706U CN 202022775586 U CN202022775586 U CN 202022775586U CN 213638706 U CN213638706 U CN 213638706U
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Abstract
The utility model discloses a heat abstractor of electronic station board, the wind channel of airing exhaust on air inlet duct and the box upper portion of box lower part, the air intake is connected to air inlet duct's one end, air inlet fan group is connected to air inlet duct's the other end, the air exit is connected to air exhaust duct's one end, air exhaust duct's other end connection air exhaust fan group, air inlet fan group's intake does 75% of the volume of airing exhaust of air exhaust fan group form the negative pressure in the box. The utility model discloses form the negative pressure in the box of electron station board, it is smooth and easy to utilize atmospheric pressure to make the inside air current of box, improves the heat dispersion of electron station board, guarantees the steady operation under outdoor environment, increase of service life.
Description
Technical Field
The utility model relates to a radiating technical field of liquid crystal display equipment, concretely relates to heat abstractor of electron station board.
Background
The outdoor bus electronic stop board is used for replacing the prior platform sticker lamp box equipment and has been widely applied in China. Under the condition that the service environment of the electronic stop board is outdoor, the heat dissipation performance, the electrical stability, the water and dust prevention, the acid and alkali corrosion resistance and the like of the product belong to the core technologies of the research and development of the electronic stop board product, wherein the heat dissipation performance of the product directly influences the working stability and the service life of the product. Poor device heat dissipation will result in product display anomalies such as: screen flashing, screen blooming, screen blacking, local screen blacking and other fault phenomena. The heat dissipation scheme of the conventional electronic stop board product mainly comprises three types, namely: forced air cooling, heat exchanger cooling and air conditioning cooling. The heat exchanger heat dissipation and the air conditioner heat dissipation have higher cost, so two schemes of heat exchanger heat dissipation and air conditioner heat dissipation are abandoned in most products, and the heat dissipation scheme most applied in the industry is forced air cooling heat dissipation.
The application of forced air cooling heat dissipation in electronic stop boards is very wide, and air cooling air ducts commonly used in the industry are designed to be positive pressure type or non-pressure difference type, but the two designs have the problems of air duct disorder and poor local heat dissipation.
SUMMERY OF THE UTILITY MODEL
For solving the above-mentioned problem that exists among the prior art, the utility model provides a heat abstractor of electron stop borad forms the negative pressure in the box of electron stop borad, utilizes atmospheric pressure to make the inside air current of box smooth and easy, improves the heat dispersion of electron stop borad, guarantees to stabilize work under outdoor environment, increase of service life.
The utility model discloses a following technical scheme realizes: a heat dissipation device of an electronic stop board comprises an air inlet duct at the lower part of a box body and an air exhaust duct at the upper part of the box body, wherein one end of the air inlet duct is connected with an air inlet, the other end of the air inlet duct is connected with an air inlet fan set, one end of the air exhaust duct is connected with an air outlet, the other end of the air exhaust duct is connected with an air exhaust fan set, the air inlet amount of the air inlet fan set is 75% of the air exhaust amount of the air exhaust fan set, and negative pressure is formed in the box.
Furthermore, a splitter is arranged above the air inlet fan unit and provided with a front screen guide plate and a rear screen guide plate.
Furthermore, the flow divider enables the ratio of the air volume in front of the screen to the air volume in back of the screen to be 6: 4.
Furthermore, a dustproof filter screen is arranged in the air inlet duct.
Furthermore, the air inlet fan set is a cross-flow fan, and the air outlet fan set is a plurality of axial-flow fans.
Furthermore, the air-conditioning system also comprises a temperature sensor and a control circuit which are arranged in the box body, wherein the temperature sensor is connected with the control circuit, and the control circuit is connected with the air inlet fan set and the air exhaust fan set.
Compared with the prior art, the utility model have following advantage:
1. the utility model discloses a control air inlet fan group inhales natural wind, and the fan group of airing exhaust discharges the hot-air, and the control intake forms the negative pressure for 75% messenger's box of the volume of airing exhaust to utilize the smooth and easy of the interior air current of atmospheric pressure force box, improve the radiating efficiency, guarantee under outdoor environment steady operation, increase of service life.
2. The utility model reasonably distributes the sucked natural wind according to the heat productivity through the diverter, and the natural wind is respectively used for the panel heat radiation of the liquid crystal screen and the backlight heat radiation of the control box and the liquid crystal screen; the air flow in the box body is dredged, and local high temperature caused by turbulence or vortex is avoided.
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the air intake structure of the present invention;
FIG. 3 is a schematic view of the air exhaust structure of the present invention;
FIG. 4 is a schematic view of the back of the electronic stop board;
fig. 5 is a schematic front view of an electronic stop board.
Detailed Description
The first embodiment is as follows:
referring to fig. 1 and 4, the heat dissipation device for the electronic stop board comprises an air inlet duct 12 at the lower part of a box body 1 and an air outlet duct 16 at the upper part of the box body 1, wherein one end of the air inlet duct 12 is connected with an air inlet 4, the other end of the air inlet duct 12 is connected with an air inlet fan set 14, one end of the air outlet duct 16 is connected with an air outlet 7, the other end of the air outlet duct 16 is connected with an air outlet fan set 15, the air inlet amount of the air inlet fan set 14 is 75% of the air outlet amount of the air outlet fan set 15, and negative pressure is formed in the box body.
Referring to fig. 4, in the present embodiment, the electronic stop board includes a box body 1, a light box door 6 is provided on the back of the box body, a platform light box 5 is provided on the side of the box body, and a mounting base 2 is provided at the bottom of the box body for mounting with a ground foundation; an air inlet 4 is arranged below the lamp box door, and a maintenance door 3 is arranged below the air inlet and used for wiring during equipment maintenance and installation; an air outlet 7 is arranged on the side edge of the upper part of the box body.
Referring to fig. 5, in the embodiment, the front door 8 is provided on the front surface of the box body, the front door, the door of the lamp box and the box body are all connected by the hinge 9, the platform lamp box 5 is provided with the camera 10, and the air outlet 17 is provided below the platform lamp box.
Referring to fig. 2 and 3, in the present embodiment, the air inlet fan set 14 is a cross-flow fan, the air outlet fan set 15 is three 120mm axial fans, and the air outlet volume of each axial fan is 380m3The air inlet quantity of the air inlet fan set is 860m3The exhaust volume of the exhaust fan set is 1140m3The intake air volume is about 0.75 times of the exhaust air volume. The cross flow fan sucks natural air from the outside of the box body, the axial flow fan exhausts hot air in the box body through the air exhaust duct, and the requirement of negative pressure in the box body is met by the fact that the air intake is smaller than the air exhaust, so that air flow in the box body is smooth by means of atmospheric compression, and the heat dissipation efficiency is improved.
Referring to fig. 1 and 2, a splitter 11 is arranged above the air inlet fan set, the splitter is provided with a front screen guide plate 18 and a rear screen guide plate 19, and an intersection line of the front screen guide plate 18 and the rear screen guide plate 19 is located right above a 6:4 boundary line of an air outlet of the air inlet fan set 14.
In this embodiment, the splitter 11 distributes the natural air inhaled by the air inlet fan set so that the ratio of the air volume before the screen to the air volume after the screen is 6: 4. The front screen air is used for panel heat dissipation of the liquid crystal screen 20 with higher calorific value, and the rear screen air is used for backlight heat dissipation of the control box with lower calorific value and the liquid crystal screen; the air inlet duct 12 is an air chamber with a certain volume, and the main function of the flow divider 11 is to channel the air flow in the box body and avoid local high temperature caused by turbulence or vortex.
Referring to fig. 2, in the present embodiment, a dust-proof filter screen 13 is disposed in the air intake duct 12. The dustproof filter screen is arranged inside the air inlet duct, so that sucked natural air can be filtered, and dust is reduced to enter the box body. The air outlet duct comprises an air cavity with a certain volume and a labyrinth waterproof structure.
In this embodiment, still include temperature sensor and control circuit in the box, temperature sensor with control circuit connects, control circuit with air inlet fan group and air exhaust fan group link.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited, and although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with other equivalents without departing from the spirit and the scope of the present invention, which should be covered by the claims of the present invention.
Claims (6)
1. The utility model provides a heat abstractor of electron stop borad which characterized in that: the negative pressure air exhaust device comprises an air inlet duct at the lower part of a box body and an air exhaust duct at the upper part of the box body, wherein one end of the air inlet duct is connected with an air inlet, the other end of the air inlet duct is connected with an air inlet fan set, one end of the air exhaust duct is connected with an air outlet, the other end of the air exhaust duct is connected with an air exhaust fan set, the air inlet amount of the air inlet fan set is 75% of the air exhaust amount of the air exhaust fan set, and negative.
2. The heat dissipating device for an electronic stop sign according to claim 1, wherein: the air inlet fan unit is characterized in that a splitter is arranged above the air inlet fan unit and provided with a front screen guide plate and a rear screen guide plate.
3. The heat dissipating device for an electronic stop sign according to claim 2, wherein: the flow divider enables the ratio of the air volume in front of the screen to the air volume behind the screen to be 6: 4.
4. The heat dissipating device for an electronic stop sign according to claim 1, 2 or 3, wherein: and a dustproof filter screen is arranged in the air inlet duct.
5. The heat dissipating device for an electronic stop sign according to claim 1, 2 or 3, wherein: the air inlet fan set is a cross-flow fan, and the air exhaust fan set is a plurality of axial-flow fans.
6. The heat dissipating device for an electronic stop sign according to claim 1, 2 or 3, wherein: the air conditioner is characterized by further comprising a temperature sensor and a control circuit, wherein the temperature sensor and the control circuit are arranged in the box body, the temperature sensor is connected with the control circuit, and the control circuit is connected with the air inlet fan set and the air exhaust fan set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022775586.2U CN213638706U (en) | 2020-11-26 | 2020-11-26 | Heat radiator for electron stop borad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022775586.2U CN213638706U (en) | 2020-11-26 | 2020-11-26 | Heat radiator for electron stop borad |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213638706U true CN213638706U (en) | 2021-07-06 |
Family
ID=76636901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022775586.2U Active CN213638706U (en) | 2020-11-26 | 2020-11-26 | Heat radiator for electron stop borad |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213638706U (en) |
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2020
- 2020-11-26 CN CN202022775586.2U patent/CN213638706U/en active Active
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