WO2018090433A1

WO2018090433A1 - Outdoor electronic device

Info

Publication number: WO2018090433A1
Application number: PCT/CN2016/111719
Authority: WO
Inventors: 李文
Original assignee: 上海启钧电子有限公司
Priority date: 2016-11-16
Filing date: 2016-12-23
Publication date: 2018-05-24
Also published as: CN106455449A

Abstract

The present invention relates to an outdoor electronic device, comprising: an airtight housing and a display module arranged in the housing. The outdoor electronic device is characterized in that a cooling module detachably covers the back of the housing; and the cooling module comprises an outer cover body in communication with the outside, and cooling fans mounted on the outer cover body. By mounting a display module by means of an airtight shell, the cleanliness of air inside the housing can be ensured, thereby preventing an impact of dust on a display effect of the display module, and ensuring the service life of the display module. Heat exchange for cooling is realized by means of the housing. A cooling module further covers the back of the housing, and the cooling module uses outside air to form a cooling airflow to cool the back of the housing, thereby improving a cooling effect of the back of the housing and thus improving a cooling effect for the display module.

Description

Outdoor electronic equipment

Technical field

The invention relates to the field of heat sinks, and in particular to an outdoor electronic device.

Background technique

At present, outdoor electronic devices such as outdoor advertising machines are heated by the electronic components themselves, and the temperature of the advertising machine is high after running for a period of time. If the heat treatment is not performed, the electronic components are easily damaged.

The existing advertising machines generally have a heat dissipating device for cooling the advertising machine to ensure the service life of the advertising machine. The existing heat dissipating device can be divided into two types. One is to set a fan in a sealed outdoor advertising machine to form an inner circulation wind for heat dissipation, and the heat dissipation method has the advantages of ensuring air cleanliness in the outdoor advertising machine. The effect of dust on the display of the display module is avoided, thereby ensuring the service life of the display module, but due to the high temperature inside the outdoor advertising machine, the heat dissipation effect of the inner circulation wind is not ideal. The other is to use an open outdoor advertising machine, that is, to open opposite vents on the outer casing of the outdoor advertising machine, and to install a fan at the vent to use the outside air to form a heat-dissipating airflow, because the temperature of the outside air is lower than the outdoor The temperature inside the advertising machine has a better heat dissipation effect, but the air cleanliness in the outdoor advertising machine cannot be guaranteed due to the introduction of outside air, even if a filter is installed at the vent, it cannot be completely Ensure the cleanliness inside the outdoor advertising machine, thus reducing the life of the display module.

Summary of the invention

The object of the present invention is to overcome the deficiencies of the prior art, and to provide an outdoor electronic device, which solves the problem that the heat dissipation effect in the heat dissipation by using the inner circulation wind in the prior art is not ideal, and the air existing in the heat dissipation by using the outside air to form the heat dissipation airflow is used. The cleanliness is not guaranteed and the life of the display module is reduced.

The technical solution to achieve the above objectives is:

The present invention provides an outdoor electronic device, including a sealed outer casing and a display module disposed in the outer casing, wherein a heat dissipation module is detachably disposed on a back of the outer casing, and the heat dissipation mold The set includes an outer cover body that communicates with the outside and a heat dissipation fan that is mounted to the outer cover body.

The display module is installed in a sealed outer casing to ensure the cleanness of the air inside the outer casing, and to avoid the influence of dust on the display effect of the display module, and to ensure the service life of the display module. The heat exchange heat is dissipated through the outer casing, and the heat dissipation module is further disposed on the back of the outer casing. The heat dissipation module uses the outside air to form a heat dissipation airflow to dissipate heat on the back of the outer casing, thereby improving the heat dissipation effect on the back of the outer casing, thereby improving the display module. Cooling effect.

A further improvement of the outdoor electronic device of the present invention is that the outer cover body comprises a back plate disposed opposite to the back of the outer casing, and the heat dissipation fan is disposed on the back plate, and the air outlet of the heat dissipation fan is directly opposite The back of the case is set.

A further improvement of the outdoor electronic device of the present invention is that a mounting flange is formed around the back plate, and an end of the mounting flange is detachably coupled to a side of the outer casing.

A further improvement of the outdoor electronic device of the present invention is that the mounting flange is provided with a communication port communicating with the outside.

A further improvement of the outdoor electronic device of the present invention is that the side of the outer casing is provided with a first threaded hole, and the end of the mounting flange is attached to the side of the outer casing and is opened with the first threaded hole Corresponding first connecting holes are bored through the connecting holes and screwed to the first threaded holes to fasten the side portions of the mounting flange and the outer casing.

A further improvement of the outdoor electronic device of the present invention is that the side of the outer casing protrudes from the back of the outer casing to form an extension plate, and the extension plate is detachably coupled to the back plate.

A further improvement of the outdoor electronic device of the present invention is that the extension plate is provided with a communication port communicating with the outside.

A further improvement of the outdoor electronic device of the present invention is that the end of the extension plate is bent inside to form a mounting wing, and the mounting wing is provided with a second threaded hole, and the periphery of the back plate is attached to the Mounting the wing plate and opening a second connecting hole corresponding to the second threaded hole, the second connecting hole is pierced through the connecting screw and screwed to the second threaded hole to fasten the connection The board and the mounting wing.

A further improvement of the outdoor electronic device of the present invention is that the side and back of the outer casing are formed with heat dissipating fins.

A further improvement of the outdoor electronic device of the present invention further includes a sealed electronic box, wherein the electronic box is provided with an electronic component connected to the display module, and the back of the electronic box is detachably provided with another heat dissipation Module.

DRAWINGS

1 is a cross-sectional view showing a first embodiment of an outdoor electronic device of the present invention.

2 is a schematic exploded view of FIG. 1.

Fig. 3 is a partially enlarged schematic view showing a portion A in Fig. 1.

4 is a cross-sectional view showing a second embodiment of the outdoor electronic device of the present invention.

Fig. 5 is a partially enlarged schematic view showing a portion B in Fig. 4.

Figure 6 is a cross-sectional view showing a second embodiment of the outdoor electronic device of the present invention.

detailed description

The invention will be further described below in conjunction with the drawings and specific embodiments.

The invention provides an outdoor electronic device, which provides a novel heat dissipation mode for the electronic device, which comprises a sealed type of conduction heat dissipation, heat exchange through the outer casing, and an open type ventilation and heat dissipation through the back of the outer casing. The upper cover is provided with a cover body, and a heat dissipation space is formed between the cover body and the back of the outer case. The heat dissipation space communicates with the outside, and then a heat dissipation airflow is formed by a heat dissipation fan disposed on the outer cover body to dissipate heat from the back of the outer case to improve the electronic The heat dissipation effect of the device. The outdoor electronic device of the invention ensures the internal air cleanliness through the sealed outer casing, thereby ensuring the display effect and the service life of the display module, and by using the heat dissipation module, the low temperature outside air is used to rapidly cool the back of the outer casing. Improve the cooling and cooling effect, and also avoid the pollution of dust in the outside air. The outdoor electronic device of the present invention will be described below with reference to the accompanying drawings.

As shown in FIG. 1 and FIG. 2, the present invention provides an outdoor electronic device including a sealed outer casing 11, a display module 12 disposed in the outer casing 11, and a heat dissipation mold detachably disposed on the back 113 of the outer casing 11. In the group 20, the heat dissipation module 20 includes an outer cover 21 that communicates with the outside and a heat dissipation fan 22 that is mounted on the outer cover 21. The external cold air is sent into the outer cover 21 through the heat radiating fan 22, and then discharged to the outside through the outer cover 21, whereby a heat radiating airflow is formed in the outer cover 21, and the heat radiating air dissipates heat to the back 113 of the outer casing 11, and the outer casing The back 113 of the 11 heats the internal display module 12 by heat exchange. The outdoor electronic device of the present invention has better heat dissipation effect and better display effect. Since the sealed outer casing 11 is used, the air cleanliness inside the outer casing 11 can be ensured, the influence of dust on the display effect of the display module can be avoided, and the service life of the display module can be ensured. The arrangement of the heat dissipation module 20 increases the heat dissipation effect of the outer casing 11 and improves the heat dissipation capability of the display module.

As a preferred embodiment of the present invention, the outer cover 21 includes a back plate 211 disposed opposite the back 113 of the outer casing 11, and a heat dissipating fan 22 is disposed on the back 211, and the air of the cooling fan 22 is disposed. The mouth is disposed on the back 113 of the outer casing 11. The back plate 211 is disposed opposite to the back 113 of the outer casing 11, and a space is left between the back plate 211 and the back 113 of the outer casing 11, that is, a heat dissipation space 24 is formed between the outer cover 21 and the back 113 of the outer casing 11. The air outlet of the heat dissipation fan 22 is disposed to the back 113 of the outer casing 11, so that the wind blown by the heat dissipation fan 22 is directly blown toward the back 113 of the outer casing 11, and the back 113 of the outer casing 11 is directly cooled, since the outer cover 21 communicates with the outside, The blown air cools the back 113 of the casing 11 and is discharged to the outside of the outer casing 21 to form a heat radiating airflow in the heat radiating space 24, thereby improving the heat radiating effect. Since the back plate 211 is disposed facing the back 113, the air outlet of the heat radiating fan 22 is also disposed to the back 113, so that the wind energy blown by the heat radiating fan 22 is quickly discharged from the communication between the outer cover 21 and the outside, and the heat radiating air is discharged. The flow path is short, and the wind entering from the heat dissipation fan 22 is discharged from the communication port on the outer cover body 21 without circulating in the entire heat dissipation space 24, thereby increasing the speed of the wind circulation, thereby accelerating the back 113 of the outer casing 11. The cooling rate increases the heat dissipation effect.

In the first embodiment, as shown in FIGS. 1 and 2, a mounting flange 212 is formed around the back plate 211, and the end of the mounting flange 212 is detachably coupled to the side of the outer casing 11. Further, the mounting flange 212 is provided with a communication port 213 communicating with the outside. Specifically, the mounting flange 212 includes an inclined section formed at an end of the backing plate 211 and a vertical section formed at an end of the inclined section, the vertical section is attached to and detachably attached to a side of the apparatus body 10 A plurality of communication ports 213 are opened in the inclined section, and the air in the heat dissipation space 24 is discharged through the communication port 213. A plurality of cooling fans 22 are disposed on the backboard 211. The cooling fans 22 are disposed at a set interval. The air inlets of the cooling fan 22 are disposed on the back surface of the backboard 211, and the cooling fan 22 is disposed in the heat dissipation space 24. The heat dissipation principle of the heat dissipation module 20 is: the cooling fan 22 sends outside cold air into the heat dissipation space 24, and the cold air sent by the heat dissipation fan 22 is directly blown toward the back 113 of the casing 11, and the back 113 of the casing 11 The cooling process is performed, and the cold air sent by the cooling fan 22 cools the back 113 of the casing 11 and is discharged to the outside through the communication port 213 on the mounting flange 212, so that the cooling fan 22 continuously feeds in new cold air, which is cold. The air is quickly discharged from the communication port 213 after cooling the back 113 of the outer casing 11, forming a circulating cooling heat flow.

As shown in FIG. 3, the side portion 112 of the outer casing 11 is provided with a first threaded hole 1121. The end of the mounting flange 212 is attached to the side portion 112 of the outer casing 11 and has a first corresponding to the first threaded hole 1121. The connecting hole 214 is bored through the connecting screw 23 and screwed into the first threaded hole 1121 to fasten the connection mounting flange 212 and the side of the apparatus body 10. The mounting flange 212 is detachably connected to the device body 10 by the connecting screw 23, so that the heat dissipating module 20 can be easily disassembled and assembled. When the dust deposited inside the heat dissipating module 20 is large, the heat dissipating structure can be It can be easily removed and replaced with a new heat dissipation structure.

In the first embodiment, as shown in FIGS. 1 and 2, the front portion 111 of the outer casing 11 is a display glass, and the side portion 112 and the back portion 113 are heat dissipation plates, which have better thermal conductivity. The heat dissipation plate and the display glass are sealed and connected between the heat dissipation plates to form a sealed outer casing 11. The outer casing 11 achieves heat exchange heat dissipation through the heat dissipation plates at the side portions 112 and the back portion 113. A sealed space is formed in the outer casing 11, and the display module 12 is disposed in a sealed space and disposed on a side close to the display glass. An electronic component 13 between the display module 12 and the back 113 of the casing 11 is further disposed in the casing 11. The electronic component 13 is connected to the display module 12 to provide display control for the display module 12. The electronic component 13 is a PCB card, a PC, a power source, a switch device, and the like mounted on a fixed board or in an open case. The display module 12 includes a mounting frame and a plurality of function boards installed in the mounting frame. The function board includes a light board, a liquid crystal panel, a diffuser board and an optical film. The display module 12 is used to display and play outdoor advertisements.

As a preferred embodiment of the present invention, heat dissipating fins 14 are formed on the surface of the back portion 113 and the side portion 112. The heat dissipating fins 14 are spaced apart from the inner surface and the outer surface of the back portion 113 and the side portion 112 for heat dissipation. The heat dissipation effect of the board.

As shown in FIG. 4 and FIG. 6, a second embodiment of the outdoor electronic device of the present invention is shown. In the second embodiment, the display module 12 and the electronic box 15 are in a split structure, and the display module 12 is disposed in a sealed state. Inside the casing 11, the electronic cassette 15 is also a hermetic structure. Correspondingly, a detachable heat dissipation module 20 is mounted on the back portion 114 of the casing 11 on which the display module 12 is mounted and the back of the electronic box 15. The connection manner of the heat dissipation module 20 is also different from that of the first embodiment. As shown in FIG. 4, the outer cover body 21 includes a back plate 211 disposed opposite to the back 113 of the outer casing 11, and the rear plate 211 is provided with a heat dissipation fan 22, and the air outlet of the heat dissipation fan 22 is disposed opposite the back 113 of the outer casing 11. The side portion 112 of the outer casing 11 protrudes from the back 113 of the outer casing 11 to form an extension plate 115, and the extension plate 115 is detachably coupled to the back plate 211. Further, the extension plate 115 is provided with a communication port communicating with the outside, so that the air in the outer cover body 21 can be discharged to the outside through the communication port.

As shown in FIG. 4, the front portion 111 of the outer casing 11 is a display glass, the side portion 112 is a side plate, and the back portion 113 is a heat dissipation plate. The front end of the side plate is bent inward to form a hem, and the rim is attached to the display glass. The side panel is connected to the display glass seal, and the side panel is sealed and connected to the heat sink. The side panel is enclosed with the display glass and the heat sink to form a sealed space, and the display module 12 is installed in the sealed space. The display module 12 is adjacent to the side. Display one side of the glass. The display module 12 includes a mounting frame and a plurality of function boards installed in the mounting frame. The function board includes a light board, a liquid crystal panel, a diffuser board and an optical film. The display module 12 is used to display and play outdoor advertisements.

As shown in FIG. 5, the rear end of the side panel protrudes from the back 113 of the outer casing 11 to form an extension plate 115. The end of the extension plate 115 is bent inside to form a mounting wing 116, and the mounting wing 116 is provided with a second threaded hole. 117, the back plate 211 is attached to the mounting wing 116 and has a second connecting hole 215 corresponding to the second threaded hole 117. The second connecting hole 215 is inserted through the connecting screw 23 and screwed to the second. A threaded hole 117 is used to securely connect the back plate 211 and the mounting wing 116. The backplane 211 is detachably connected to the device body 10 by connecting the screws 23, so that the disassembly and assembly of the heat dissipation module 20 is convenient. When the dust deposited inside the heat dissipation module 20 is large, the heat dissipation structure can be disassembled for cleaning. It is also easy to replace the new heat dissipation structure.

In the second embodiment, the back plate 211, the extension plate 115 and the back 113 of the outer casing 11 enclose a heat dissipation space 24, and the air inlet of the heat dissipation fan 22 is disposed on the back surface of the back plate 211, and the heat dissipation fan 22 is disposed in the heat dissipation space 24. The air outlet of the cooling fan 22 is disposed opposite to the back 113. The heat dissipation principle of the heat dissipation module 20 is: the cooling fan 22 sends outside cold air into the heat dissipation space 24, and the cold air sent by the heat dissipation fan 22 is directly blown toward the back 113 of the casing 11, and the back 113 of the casing 11 The cooling process is performed, and the cold air sent by the cooling fan 22 cools the back 113 of the casing 11 and is discharged to the outside through the communication port on the extension plate 115, so that the cooling fan 22 continuously feeds new cold air, and the cold air pair The back 113 of the outer casing 11 is quickly discharged from the communication port after cooling, forming a circulating cooling heat flow. Since the backing plate 211 is disposed facing the back 113, the air outlet of the heat radiating fan 22 is disposed opposite to the back 113, so that the wind energy blown by the heat radiating fan 22 is quickly discharged from the communication between the outer casing 21 and the outside, and the flow of the heat radiating airflow is performed. The path is short, and the wind entering from the cooling fan 22 is discharged from the communication port on the outer cover body 21, and does not circulate through the entire heat dissipation space 24, thereby increasing the speed of the wind circulation, thereby accelerating the cooling of the back 113 of the outer casing 11. Speed, improved heat dissipation.

As shown in FIG. 6, the electronic cassette 15 has a hermetic structure, and an electronic component connected to the display module 12 is mounted in the electronic cassette 15, and display control is provided for the display module 12. The electronic component is a PCB card, a PC, a power source, a switch device, and the like mounted on a fixed board or in an open case. The back of the electronic box 15 is a heat sink, and a heat dissipation module 20 is detachably disposed on the back of the electronic box 15, and the heat dissipation module 20 heats the electronic box 15. A side plate 151 is connected to the electronic box 15, and the side plate 151 is disposed around the electronic box 15. The end of the side plate 151 is bent inwardly to form a mounting wing 152. The mounting plate 152 and the heat conducting plate on the back of the electronic box 15 A set spacing is formed therebetween, and a communication port communicating with the outside air is opened on the side plate 151. The heat dissipation module 20 includes a back plate 211 and a heat dissipation fan 22 mounted on the back plate 211. A heat dissipation space 24 is formed between the back plate 211 and the heat dissipation plate. The periphery of the back plate 211 is attached to the mounting wing 152 and passes through The connecting screw 23 realizes the back plate 211 The connection to the mounting flap 152 is fastened.

In the second embodiment, the surface of the heat dissipation plate opposite to the back plate 211 is formed with heat dissipating fins to improve the heat dissipation effect.

The heat dissipation process of the outdoor electronic device of the present invention is:

The heat generated by the display module in the electronic device is transmitted from one side of the display glass to the side of the heat sink in the direction of the arrow as shown in FIG. 1. The heat in the electronic device can pass through the heat sink and the side of the back. The heat sink of the part is heat exchanged to achieve cooling of the electronic device. The heat at the heat dissipation plate of the back is heat-exchanged with the air in the heat dissipation space, and the heat dissipation airflow is formed by the heat dissipation fan. The direction of the heat dissipation airflow formed by the heat dissipation fan is as shown in FIG. The direction of the arrow is blown from the outside of the back plate to the inside, and then discharged to the outside through the communication port on the side of the heat dissipation space. The heat dissipation fan directly blows to the heat dissipation plate on the back, and directly cools the heat dissipation plate to achieve a better cooling effect.

The beneficial effects of the outdoor electronic device of the present invention are:

It has dual heat dissipation function, combined with closed type conduction heat dissipation and open type air circulation heat dissipation, that is, heat exchange heat dissipation of heat dissipation plate and open air circulation heat dissipation of heat dissipation module, and the heat dissipation of the air circulation directly acts on the heat dissipation plate of the back. Accelerate the cooling rate of the heat sink and improve the cooling effect of the electronic device.

The electronic device adopts a closed structure, which can ensure the cleanness of the internal air, provide a good working environment for the display module, avoid the influence of dust and the like on the display effect of the display module, and ensure the service life of the display module.

The back plate of the heat dissipation module is directly opposite to the back of the outer casing, and the air outlet of the cooling fan is also disposed opposite to the back, shortening the path of the wind circulation, speeding up the speed of the wind circulation, and being able to quickly send new to the outside world. Cold air, improve the cooling effect and speed up the cooling.

The present invention has been described in detail above with reference to the embodiments of the drawings, and various modifications of the invention can be made by those skilled in the art in light of the above description. Therefore, some of the details of the embodiments are not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims

An outdoor electronic device includes a sealed outer casing and a display module disposed in the outer casing, wherein a heat dissipation module is detachably disposed on a back of the outer casing, and the heat dissipation module includes an outer portion a connected outer cover body and a heat dissipation fan mounted on the outer cover body.
The outdoor electronic device according to claim 1, wherein the outer cover body comprises a back plate disposed opposite to a back of the outer casing, the rear plate is provided with the heat dissipation fan, and the heat dissipation fan The air outlet is placed on the back of the outer casing.
The outdoor electronic device according to claim 2, wherein a periphery of the backing plate is formed with a mounting flange, and an end of the mounting flange is detachably coupled to a side of the outer casing.
The outdoor electronic device according to claim 3, wherein the mounting flange is provided with a communication port communicating with the outside.
The outdoor electronic device according to claim 3, wherein a side of the outer casing is provided with a first threaded hole, and an end of the mounting flange is attached to a side of the outer casing and is provided with the same a first connecting hole corresponding to the first threaded hole, through which the first connecting hole is bored and screwed to the first threaded hole to fasten and connect the mounting flange and the side of the outer casing .
The outdoor electronic device of claim 2, wherein the side of the outer casing projects from the back of the outer casing to form an extension plate, and the extension plate is detachably coupled to the back plate.
The outdoor electronic device according to claim 6, wherein the extension plate is provided with a communication port communicating with the outside.
The outdoor electronic device according to claim 6, wherein an end portion of the extension plate is bent inwardly to form a mounting wing, and the mounting wing has a second threaded hole, and the periphery of the back plate Attached to the mounting wing and having a second connecting hole corresponding to the second threaded hole, through the connecting screw, the second connecting hole is screwed into the second threaded hole to be tight The backing plate and the mounting wing are fixedly coupled.
The outdoor electronic device of claim 1 wherein the back and sides of the outer casing are formed with heat dissipating fins.
The outdoor electronic device of claim 1 further comprising a sealed electrical The electronic box is provided with an electronic component connected to the display module, and the back of the electronic box is detachably covered with another heat dissipation module.