JP2002040966A - Display device for outdoor use - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve waterproofing performance without degrading the maintenance characteristic of a unitized display section. SOLUTION: Projecting parts which are formed to the shape of sword guards turning around the top surfaces, base surfaces and both flanks of respective display units 1 composed of display element housing sections 2 and unit back cover mechanism sections 3 and have the function of waterproof walls are formed by joining of edges 13 like brims of hats formed in the apertures of the display element housing sections 2 and edges 14 like brims of hats formed in the apertures of the unit back cover mechanism sections 3 on the top surfaces, base surfaces and both flanks of the display units 1 described above. The projecting parts formed on the base surfaces of the display units 1 are so constituted as to be formed in the positions nearer the front of the device than the projecting parts formed on the top surfaces. The respective display units 1 have channels 8 for receiving the rainwater flowing and dropping along the projecting parts formed on both flanks of the display units of upper steps and discharging the water onto the display units 1 of the lower steps.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outdoor display device, and more particularly, to a display unit constituted by mounting a plurality of display units in a matrix on the front surface of a device housing and having a waterproof structure against rainwater infiltration from the front surface. And an outdoor display device having the same.

[0002]

2. Description of the Related Art In general, an outdoor display device has an assembling property.
In many cases, the display unit is divided into a plurality of display units and the plurality of display units are attached from the front side of the apparatus in order to improve maintainability. However, since there is a gap between the display units mounted on the device, it is necessary to prevent rainwater or the like from being flooded from the gap during rainfall, or to prevent the device from being damaged by flooding. Various waterproofing structures have been attempted.

For example, Japanese Patent Application Laid-Open No. 05-232885 discloses a technique for closing a gap between display units by attaching a waterproof packing to a column on a device side for attaching the display unit.

Further, by forming a ventilation hole penetrating from the back to the front of the display unit and forming the opening of the display unit downward, from the rear side of the apparatus to the front side of the apparatus. Japanese Patent Application Laid-Open No. H10-293540 discloses a technology in which a fan is blown to cool a display unit to improve heat dissipation, and a device is configured to have waterproofness by an opening opened downward of the display unit.
No. 6,009,045.

[0005]

In the above-mentioned conventional outdoor display device, as shown in Japanese Patent Application Laid-Open No. 05-232885, a structure in which a waterproof packing or the like is provided against rainwater infiltration between display units. In the case of, it is necessary to remove the waterproof packing every time the unit is replaced, so a complicated structure is required, and handling when the display unit is removed from or attached to the device becomes troublesome. However, it has the disadvantage that the properties are reduced.

In the case of a structure disclosed in Japanese Patent Application Laid-Open No. 10-293540, in which a ventilation hole is formed so as to penetrate from the back to the front of the display unit and the opening of the display unit is directed downward, Although rainwater is unlikely to flood from the downward opening during normal rain, it is possible to prevent flooding from the above opening when rainwater is blown from below by water discharge from the bottom or wind. It has the disadvantage that it cannot be done.

An object of the present invention is to provide an outdoor display device capable of improving waterproof performance without deteriorating the maintainability of a unitized display unit.

[0008]

According to a first aspect of the present invention, there is provided an outdoor display device comprising a plurality of display units mounted in a matrix on a front surface of a device housing to constitute a display unit. The upper surface, the bottom surface, and a protrusion having the function of a waterproof wall formed on the side surfaces of the sword, and the protrusion formed on the bottom surface is formed on the upper surface. The display unit includes a unit housing formed at a position closer to the front surface of the apparatus than the projected portion to be formed, and further, the display unit transmits through the projected portions formed on both side surfaces of the upper display unit. And a drain for receiving rainwater flowing down and discharging the rainwater onto the lower display unit.

Further, in the outdoor display device according to a second aspect of the present invention, in the outdoor display device according to the first aspect, the display unit includes a display element circuit storage section for storing a display element circuit, and the display element circuit storage section. A unit back cover mechanism unit having a function of attaching the display unit to the device housing, the unit housing having a function of a rear cover of the display unit, the unit housing being a front unit housing. The display unit circuit housing section includes the front unit housing, the unit back cover mechanism section includes the rear unit housing, and the front unit housing includes a body and a rear unit housing. The edge of the opening formed on the back side of the body is formed in the shape of a collar of a hat, and the edge of the opening formed on the front side of the rear unit casing is also the back of the front unit casing. The edge of the opening on the side is formed in the form of a flange of a hat so as to be joined and integrated with each other, and the protrusion is formed by joining the edge of the front unit housing and the edge of the rear unit housing. And wherein the groove is formed on the upper surface of the front unit housing closer to the front side of the display unit than the protruding portion formed on the upper surface of the front unit housing.

The outdoor display device according to a third aspect of the present invention is the outdoor display device according to the first or second aspect, wherein the device housing has an outlet for discharging rainwater flowing down the groove. The feature is constituted.

The outdoor display device according to a fourth aspect of the present invention is the outdoor display device according to the first, second or third aspect,
A blower fan is provided on the back surface of the device housing, and the blower fan blows air toward the back surfaces of the plurality of display units.

According to a fifth aspect of the present invention, in the outdoor display device according to the first, second, third, or fourth aspect, the projecting portion includes the upper surface, the bottom surface, and both side surfaces. It is characterized by being formed so as to cross in a straight line.

A sixth aspect of the present invention provides the outdoor display device according to the third aspect, wherein the outlet is provided on a front surface of the device housing.

[0014]

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic external view showing an appearance of a display unit mounted on a device, which is an embodiment of an outdoor display device of the present invention, as viewed from a side.

FIG. 2 is a schematic front view of the display unit shown in FIG.

FIG. 3 is a schematic top view of the display unit shown in FIG.

FIG. 4 is a schematic cross-sectional view showing a cross-section of the display unit mounted on the device shown in FIG.
The lowermost part of the upper display unit and the uppermost part of the lower display unit of the display units are shown.

FIG. 5 shows a display unit in a horizontal intermediate portion viewed from the front of an outdoor display device on which a plurality of display units shown in FIG. 1 are mounted, and a display unit adjacent to the display unit in the horizontal direction. FIG. 4 is a schematic cross-sectional view showing a cross section cut vertically at a gap portion.

In the outdoor display device of the present invention shown in FIG. 5, a plurality of display units 1 having a waterproof function described below are mounted in a matrix on the front surface of a device housing 10 to constitute a display unit. A fan 12 is provided to push rainwater that has entered the gap of the display unit 1 back to the front of the device by wind and discharge it.

The display unit 1 in the outdoor display device of the present invention shown in FIG. 1 has a display element circuit storage section 2 for storing a display element circuit, and a back cover of the display unit 1 joined to the display element circuit storage section 2. A unit back cover mechanism 3 having a function and having a mechanism for attaching the display unit 1 to the apparatus housing.

The display element circuit housing 2 shown in FIG.
As shown in FIG. 4, a printed circuit board 5 on which a plurality of display elements 4, for example, display elements such as light emitting diodes are mounted, and an eave 15 for shielding the display elements from sunlight, as shown in FIG.
1 and a front unit housing 17 having a hat-shaped rim 13 as shown in FIGS. 1 and 4 for joining with the unit back cover mechanism 3. After the printed circuit board 5 on which the plurality of display elements 4 are mounted is mounted in the display element circuit housing 2, rainwater from the gap between the plurality of display elements 4 and the front unit housing 17 is obtained. In order to prevent water infiltration, a space where the display element 4 is mounted is filled with a silicon-based sealing agent 6.

As shown in FIG. 2, the display elements 4 accommodated in the display element circuit accommodating section 2 are grouped into nine blocks each of which is composed of eight blocks in the vertical direction and 16 blocks in the horizontal direction. (The middle part is omitted in FIG. 2). Three display elements in one block are arranged vertically and three in the horizontal direction, and an eave 15 for shielding the display element from direct sunlight is provided on each block.

The unit rear cover mechanism 3 shown in FIG. 1 is used for joining with the display element circuit housing 2 as shown in FIG.
And a rear unit housing 18 having a hat-shaped edge 14 as shown in FIG. 4 and a mechanism (not shown) for attaching the display unit to the device housing.

The edge 13 of the display element circuit housing 2 is formed in an opening provided for joining with the unit back cover mechanism 3, and the edge 14 of the unit back cover mechanism 3 is The edge 13 and the edge 14 are formed in an opening provided for joining with the display element circuit housing portion 2,
They are formed so as to be mutually joined and integrated.

Next, the display unit 1 when the display element circuit housing section 2 and the unit back cover mechanism section 3 are joined together.
Will be described.

The edge 13 of the display element circuit housing 2 and the edge 14 of the unit back cover mechanism 3 are joined together,
And by screwing with the fixed female screw 22 provided on the edge 13 of the display element circuit housing portion 2, the joint portion between the edge 13 and the edge 14 is moved on the upper surface, the bottom surface, and both side surfaces of the display unit 1 respectively. It was formed like a sword's collar, traversing the top, bottom, and both sides.
A wall-shaped protrusion having the function of a waterproof wall is configured.
And FIG. 4). In addition, the edge 13 of the display element circuit housing portion 2
FIG. 3 shows an external structure of the display unit 1 which is joined to the edge 14 of the unit rear cover mechanism 3 and is screwed and viewed from above.

FIG. 4 shows a cross-sectional state of a joint portion between the front unit housing 17 of the display element circuit housing unit 2 and the rear unit housing 18 of the unit back cover mechanism unit 3. In FIG. Front unit housing 17 of display unit 1
A joint between the front display unit 1 and the rear unit housing 18, that is, a joint (projection) on the bottom surface of the upper display unit 1 is a joint between the front unit housing 17 and the rear unit housing 18 of the lower display unit 1. , That is, the lower display unit 1
Between the protruding portion of the lower display unit 1 and the mounting portion of the display element on the front side of the display unit 1. It is located on the formed groove 8.

That is, the protrusion formed on the bottom surface of the upper display unit 1 is formed closer to the front surface of the device than the protrusion formed on the upper surface of the lower display unit 1. The structure is such that rainwater flowing down the protrusions formed on both side surfaces is discharged into the groove 8 on the upper surface of the lower display unit 1.

FIG. 2 shows a schematic external structure viewed from the front of the display unit 1, that is, a schematic external structure viewed from the front of the display element circuit housing 2.

A plurality of display units 1 are arranged in a matrix on a device housing 10 of an outdoor display device.
(See FIG. 5).
Between each of the mounted display units 1 and each of the vertically and horizontally adjacent display units 1, when each of the display units 1 is to be maintained, the display units 1 requiring maintenance are taken out of the apparatus housing or A necessary minimum gap is provided for mounting on the device housing after the operation is completed. A gap 9 as shown in FIG. 4 is provided between each vertically adjacent display unit 1.

In addition, edges 13 are provided on both side surfaces of each display unit 1.
And the edge 14 are formed so as to linearly cross each side surface, and the display unit 1
Is inclined at a certain angle with respect to the front display surface of the display unit 1, so that the water is flooded up to the above-mentioned protrusions on both side surfaces of the display unit 1 and the rainwater flows downward along the protrusions and is guided toward the front of the device. , Is dropped into a groove 8 formed on the upper surface of the lower display unit 1. The rainwater that has flowed down from the upper display unit 1 into the groove 8 on the upper surface of the lower display unit 1 flows downward from both ends of the groove 8 along the above-mentioned projections on both side surfaces of the display unit 1, and further lower. Falls into a groove 8 formed on the upper surface of the display unit 1.

Further, as shown in FIG.
Is provided with a discharge port 21 at the bottom for discharging rainwater that has flowed down along the protruding portions formed on the display units 1 in each stage in order as described above to the outside of the apparatus.

Since the plurality of display units 1 mounted on the outdoor display device of the present invention are configured as described above and mounted on the device, the rainwater which is to be flooded from the gap 9 between the display units 1 on the front surface of the device. Can be weakened by the resistance in the gap 9, but when the rainwater further advances, the projections formed on the top, bottom, and both sides of each display unit 1 cause Of the display unit 1 at the lower part along the protruding part, and finally falls from the lowermost display unit 1 to the lower part of the device housing 10, and falls on the lower part of the device housing 10. It is discharged from the discharge port 21 provided.

Further, since a fan 12 for blowing air toward the display unit 1 is provided on a rear portion of the device housing 10, an arrow 19 is directed toward the rear surface of the display unit 1 by the fan 12 during operation of the device. The air is blown in the direction. The wind sent toward the back of the display unit 1 is discharged from the front of the device in the direction of the arrow 20 through the gap between the adjacent display units described above. The element 2 is cooled, and the infiltration of rainwater into the inside of the device is prevented by the wind pressure of the air blown from the fan 12, so that the waterproof performance is further improved. Even if the fan 12 is stopped when the apparatus is not operated, the structure of the display unit 1 can prevent the infiltration of rainwater into the apparatus housing during normal rainfall.

As described above, the outdoor display device according to the present invention is provided with a projection functioning as a waterproof wall around the display unit to prevent rainwater from flooding, and to allow rainwater to flow downward and forward along the projection. Collected in the lower display unit, the drain is drained from the upper display unit in the groove provided on the upper surface of the lower display unit, while the lower display unit receives the drainage of the upper display unit, while preventing rainwater infiltrated by the protrusions on both sides, The display units in each stage sequentially drained, such as draining to the lower display unit together with the rainwater received from the upper stage, and the rainwater drained from the lowermost display unit was provided in the device housing. By configuring the drainage holes to drain to the outside, the display unit can be easily replaced without the need to remove and install the waterproof packing, and rainwater or other water can enter the device. It is possible to prevent the easily, without lowering the maintenance of the display unit that is unitized, it is possible to improve the waterproof performance.

By operating the blower fan, it is possible to easily prevent rainwater or the like from entering the inside of the device due to the pressure of the blower by the fan, so that the cooling performance of the unitized display unit is not reduced. Further, the waterproof performance can be further improved. The waterproof performance can be further improved.

Further, even when the outdoor display device is not in operation, when severe rainwater such as a storm is expected and it is necessary to further improve the waterproof performance, this can be achieved by operating the blower fan.

In the above description, the above-mentioned protruding portions formed by the edges 13 and 14 on both sides of the display unit 1 are formed linearly and have a fixed angle with respect to the display surface of the display unit 1. As described above, the rainwater flooded to the projections on both side surfaces of the display unit 1 is caused to flow downward along the projections, and the rainwater is guided toward the front of the device, and the upper surface of the lower display unit 1 is formed. The shape is not necessarily linear as long as it can be dropped into the groove 8 formed in the groove.

The display unit 1 mounted on the device housing is configured such that the rear side thereof is mounted on the support 11 of the device housing 10 with a mounting bracket such as a screw inside the device. The attachment and detachment work of the display unit 1 can be easily performed.

[0041]

As described above, the outdoor display device according to the present invention is provided with a projection functioning as a waterproof wall around the display unit to prevent rainwater from infiltrating, and to prevent rainwater from flowing along the projection. Collected in the lower front, flowed into the groove provided on the upper surface of the lower display unit, the lower display unit received the drainage of the upper display unit in the groove, while preventing rainwater flooded by the protrusions on both sides, The display units in each stage sequentially drained, such as draining to the lower display unit together with the rainwater received from the upper stage, and the rainwater drained from the lowermost display unit was provided in the device housing. By using the drain hole to drain water to the outside, there is no need to use waterproof packing as in the past, so it is necessary to remove and install the waterproof packing when replacing the display unit. The display unit can be easily replaced, and it is possible to easily prevent rainwater or the like from entering the inside of the device, thereby improving the waterproof performance without reducing the maintainability of the unitized display unit. Has an effect.

Further, the display unit is cooled by blowing air from the back side of the apparatus housing toward the display unit side, and the pressure of the air blown by the fan easily prevents water such as rainwater from entering the inside of the apparatus. Therefore, there is an effect that the waterproof performance can be further improved without lowering the cooling performance of the unitized display unit.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing an embodiment of a display unit in an outdoor display device of the present invention.

FIG. 2 is a schematic front view of the display unit shown in FIG.

FIG. 3 is a schematic top view of the display unit shown in FIG.

FIG. 4 is a schematic cross-sectional view showing a cross section in which a middle portion in a horizontal direction as viewed from the front surface of the display unit mounted on the device shown in FIG. 1 is vertically broken.

5 is a schematic cross-sectional view showing a cross-section of the outdoor display device in which a plurality of display units shown in FIG. 1 are mounted by vertically cutting a horizontal central portion viewed from the front surface of the outdoor display device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Display unit 2 Display element circuit accommodation part 3 Unit back cover mechanism part 4 Display element 5 Printed circuit board 6 Sealing agent 8 Groove 9 Gap 10 Device housing 11 Post 12 Fan 13 Edge 14 Edge 15 Eaves 16 Screw 17 Front unit housing 18 Rear unit housing 19 Arrow 20 Arrow 21 Outlet 22 Fixed female screw

Claims (6)

[Claims] 1. An outdoor display device comprising a plurality of display units mounted in a matrix on a front surface of an apparatus housing to constitute a display unit, wherein the upper surface, the bottom surface, and both side surfaces are disposed on the upper surface, the bottom surface, and both side surfaces. A protrusion having the function of a waterproof wall is formed in the shape of a sword of a sword, and the protrusion formed on the bottom surface is formed closer to the front surface of the device than the protrusion formed on the upper surface. The display unit, the display unit further receiving the rainwater flowing down the projections formed on both side surfaces of the upper display unit, and discharging the rainwater onto the lower display unit. An outdoor display device comprising: 2. The outdoor display device according to claim 1, wherein the display unit includes a display element circuit storage section for storing a display element circuit, and a back cover of the display unit joined to the display element circuit storage section. Having a function, a unit back cover mechanism having a mechanism for attaching the display unit to the device housing, the unit housing includes a front unit housing and a rear unit housing, The display element circuit housing portion includes the front unit housing, the unit rear cover mechanism includes the rear unit housing, and an opening formed on the back side of the front unit housing. The edge is formed in the shape of a collar of a hat, and the edge of the opening formed on the front side of the rear unit housing also faces the edge of the opening on the back side of the front unit housing. Formed in the form of a collar of a hat so that they can be combined and integrated, and constitute the protruding portion by joining an edge of the front unit housing and an edge of the rear unit housing,
The outdoor display device, wherein the groove is formed on an upper surface of the front unit housing closer to a front surface side of the display unit than the protruding portion formed on an upper surface of the front unit housing. 3. The outdoor display device according to claim 1, wherein the device housing includes an outlet for discharging rainwater flowing down the groove. 4. The outdoor display device according to claim 1, further comprising a blower fan on a back surface of the device housing, wherein the blower fan faces a back surface of the plurality of display units. An outdoor display device characterized by blowing air. 5. The outdoor display device according to claim 1, wherein the projecting portion is
An outdoor display device formed so as to linearly cross the top surface, the bottom surface, and both side surfaces. 6. The outdoor display device according to claim 3, wherein the outlet is provided on a front surface of the device housing.